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authoraltaf-creator <dev@altafcreator.com>2024-05-12 12:14:02 +0700
committeraltaf-creator <dev@altafcreator.com>2024-05-12 12:14:02 +0700
commitd607ac12097afb5cb6f398a4e7b5cf4316efedc6 (patch)
tree6f4bc5b98a6ff3a1c3189f7ef9b570c0481e100d /packages/markdown-it-14.1.0/dist
parent7441f212967256ac4c9a93ba0b1f026308a8bfb6 (diff)
self host
Diffstat (limited to 'packages/markdown-it-14.1.0/dist')
-rw-r--r--packages/markdown-it-14.1.0/dist/index.cjs.js5540
-rw-r--r--packages/markdown-it-14.1.0/dist/markdown-it.js6963
-rw-r--r--packages/markdown-it-14.1.0/dist/markdown-it.min.js2
3 files changed, 12505 insertions, 0 deletions
diff --git a/packages/markdown-it-14.1.0/dist/index.cjs.js b/packages/markdown-it-14.1.0/dist/index.cjs.js
new file mode 100644
index 0000000..5ba2eaa
--- /dev/null
+++ b/packages/markdown-it-14.1.0/dist/index.cjs.js
@@ -0,0 +1,5540 @@
+'use strict';
+
+var mdurl = require('mdurl');
+var ucmicro = require('uc.micro');
+var entities = require('entities');
+var LinkifyIt = require('linkify-it');
+var punycode = require('punycode.js');
+
+function _interopNamespaceDefault(e) {
+ var n = Object.create(null);
+ if (e) {
+ Object.keys(e).forEach(function (k) {
+ if (k !== 'default') {
+ var d = Object.getOwnPropertyDescriptor(e, k);
+ Object.defineProperty(n, k, d.get ? d : {
+ enumerable: true,
+ get: function () { return e[k]; }
+ });
+ }
+ });
+ }
+ n.default = e;
+ return Object.freeze(n);
+}
+
+var mdurl__namespace = /*#__PURE__*/_interopNamespaceDefault(mdurl);
+var ucmicro__namespace = /*#__PURE__*/_interopNamespaceDefault(ucmicro);
+
+// Utilities
+//
+
+function _class(obj) {
+ return Object.prototype.toString.call(obj);
+}
+function isString(obj) {
+ return _class(obj) === '[object String]';
+}
+const _hasOwnProperty = Object.prototype.hasOwnProperty;
+function has(object, key) {
+ return _hasOwnProperty.call(object, key);
+}
+
+// Merge objects
+//
+function assign(obj /* from1, from2, from3, ... */) {
+ const sources = Array.prototype.slice.call(arguments, 1);
+ sources.forEach(function (source) {
+ if (!source) {
+ return;
+ }
+ if (typeof source !== 'object') {
+ throw new TypeError(source + 'must be object');
+ }
+ Object.keys(source).forEach(function (key) {
+ obj[key] = source[key];
+ });
+ });
+ return obj;
+}
+
+// Remove element from array and put another array at those position.
+// Useful for some operations with tokens
+function arrayReplaceAt(src, pos, newElements) {
+ return [].concat(src.slice(0, pos), newElements, src.slice(pos + 1));
+}
+function isValidEntityCode(c) {
+ /* eslint no-bitwise:0 */
+ // broken sequence
+ if (c >= 0xD800 && c <= 0xDFFF) {
+ return false;
+ }
+ // never used
+ if (c >= 0xFDD0 && c <= 0xFDEF) {
+ return false;
+ }
+ if ((c & 0xFFFF) === 0xFFFF || (c & 0xFFFF) === 0xFFFE) {
+ return false;
+ }
+ // control codes
+ if (c >= 0x00 && c <= 0x08) {
+ return false;
+ }
+ if (c === 0x0B) {
+ return false;
+ }
+ if (c >= 0x0E && c <= 0x1F) {
+ return false;
+ }
+ if (c >= 0x7F && c <= 0x9F) {
+ return false;
+ }
+ // out of range
+ if (c > 0x10FFFF) {
+ return false;
+ }
+ return true;
+}
+function fromCodePoint(c) {
+ /* eslint no-bitwise:0 */
+ if (c > 0xffff) {
+ c -= 0x10000;
+ const surrogate1 = 0xd800 + (c >> 10);
+ const surrogate2 = 0xdc00 + (c & 0x3ff);
+ return String.fromCharCode(surrogate1, surrogate2);
+ }
+ return String.fromCharCode(c);
+}
+const UNESCAPE_MD_RE = /\\([!"#$%&'()*+,\-./:;<=>?@[\\\]^_`{|}~])/g;
+const ENTITY_RE = /&([a-z#][a-z0-9]{1,31});/gi;
+const UNESCAPE_ALL_RE = new RegExp(UNESCAPE_MD_RE.source + '|' + ENTITY_RE.source, 'gi');
+const DIGITAL_ENTITY_TEST_RE = /^#((?:x[a-f0-9]{1,8}|[0-9]{1,8}))$/i;
+function replaceEntityPattern(match, name) {
+ if (name.charCodeAt(0) === 0x23 /* # */ && DIGITAL_ENTITY_TEST_RE.test(name)) {
+ const code = name[1].toLowerCase() === 'x' ? parseInt(name.slice(2), 16) : parseInt(name.slice(1), 10);
+ if (isValidEntityCode(code)) {
+ return fromCodePoint(code);
+ }
+ return match;
+ }
+ const decoded = entities.decodeHTML(match);
+ if (decoded !== match) {
+ return decoded;
+ }
+ return match;
+}
+
+/* function replaceEntities(str) {
+ if (str.indexOf('&') < 0) { return str; }
+
+ return str.replace(ENTITY_RE, replaceEntityPattern);
+} */
+
+function unescapeMd(str) {
+ if (str.indexOf('\\') < 0) {
+ return str;
+ }
+ return str.replace(UNESCAPE_MD_RE, '$1');
+}
+function unescapeAll(str) {
+ if (str.indexOf('\\') < 0 && str.indexOf('&') < 0) {
+ return str;
+ }
+ return str.replace(UNESCAPE_ALL_RE, function (match, escaped, entity) {
+ if (escaped) {
+ return escaped;
+ }
+ return replaceEntityPattern(match, entity);
+ });
+}
+const HTML_ESCAPE_TEST_RE = /[&<>"]/;
+const HTML_ESCAPE_REPLACE_RE = /[&<>"]/g;
+const HTML_REPLACEMENTS = {
+ '&': '&amp;',
+ '<': '&lt;',
+ '>': '&gt;',
+ '"': '&quot;'
+};
+function replaceUnsafeChar(ch) {
+ return HTML_REPLACEMENTS[ch];
+}
+function escapeHtml(str) {
+ if (HTML_ESCAPE_TEST_RE.test(str)) {
+ return str.replace(HTML_ESCAPE_REPLACE_RE, replaceUnsafeChar);
+ }
+ return str;
+}
+const REGEXP_ESCAPE_RE = /[.?*+^$[\]\\(){}|-]/g;
+function escapeRE(str) {
+ return str.replace(REGEXP_ESCAPE_RE, '\\$&');
+}
+function isSpace(code) {
+ switch (code) {
+ case 0x09:
+ case 0x20:
+ return true;
+ }
+ return false;
+}
+
+// Zs (unicode class) || [\t\f\v\r\n]
+function isWhiteSpace(code) {
+ if (code >= 0x2000 && code <= 0x200A) {
+ return true;
+ }
+ switch (code) {
+ case 0x09: // \t
+ case 0x0A: // \n
+ case 0x0B: // \v
+ case 0x0C: // \f
+ case 0x0D: // \r
+ case 0x20:
+ case 0xA0:
+ case 0x1680:
+ case 0x202F:
+ case 0x205F:
+ case 0x3000:
+ return true;
+ }
+ return false;
+}
+
+/* eslint-disable max-len */
+
+// Currently without astral characters support.
+function isPunctChar(ch) {
+ return ucmicro__namespace.P.test(ch) || ucmicro__namespace.S.test(ch);
+}
+
+// Markdown ASCII punctuation characters.
+//
+// !, ", #, $, %, &, ', (, ), *, +, ,, -, ., /, :, ;, <, =, >, ?, @, [, \, ], ^, _, `, {, |, }, or ~
+// http://spec.commonmark.org/0.15/#ascii-punctuation-character
+//
+// Don't confuse with unicode punctuation !!! It lacks some chars in ascii range.
+//
+function isMdAsciiPunct(ch) {
+ switch (ch) {
+ case 0x21 /* ! */:
+ case 0x22 /* " */:
+ case 0x23 /* # */:
+ case 0x24 /* $ */:
+ case 0x25 /* % */:
+ case 0x26 /* & */:
+ case 0x27 /* ' */:
+ case 0x28 /* ( */:
+ case 0x29 /* ) */:
+ case 0x2A /* * */:
+ case 0x2B /* + */:
+ case 0x2C /* , */:
+ case 0x2D /* - */:
+ case 0x2E /* . */:
+ case 0x2F /* / */:
+ case 0x3A /* : */:
+ case 0x3B /* ; */:
+ case 0x3C /* < */:
+ case 0x3D /* = */:
+ case 0x3E /* > */:
+ case 0x3F /* ? */:
+ case 0x40 /* @ */:
+ case 0x5B /* [ */:
+ case 0x5C /* \ */:
+ case 0x5D /* ] */:
+ case 0x5E /* ^ */:
+ case 0x5F /* _ */:
+ case 0x60 /* ` */:
+ case 0x7B /* { */:
+ case 0x7C /* | */:
+ case 0x7D /* } */:
+ case 0x7E /* ~ */:
+ return true;
+ default:
+ return false;
+ }
+}
+
+// Hepler to unify [reference labels].
+//
+function normalizeReference(str) {
+ // Trim and collapse whitespace
+ //
+ str = str.trim().replace(/\s+/g, ' ');
+
+ // In node v10 'ẞ'.toLowerCase() === 'Ṿ', which is presumed to be a bug
+ // fixed in v12 (couldn't find any details).
+ //
+ // So treat this one as a special case
+ // (remove this when node v10 is no longer supported).
+ //
+ if ('ẞ'.toLowerCase() === 'Ṿ') {
+ str = str.replace(/ẞ/g, 'ß');
+ }
+
+ // .toLowerCase().toUpperCase() should get rid of all differences
+ // between letter variants.
+ //
+ // Simple .toLowerCase() doesn't normalize 125 code points correctly,
+ // and .toUpperCase doesn't normalize 6 of them (list of exceptions:
+ // İ, ϴ, ẞ, Ω, K, Å - those are already uppercased, but have differently
+ // uppercased versions).
+ //
+ // Here's an example showing how it happens. Lets take greek letter omega:
+ // uppercase U+0398 (Θ), U+03f4 (ϴ) and lowercase U+03b8 (θ), U+03d1 (ϑ)
+ //
+ // Unicode entries:
+ // 0398;GREEK CAPITAL LETTER THETA;Lu;0;L;;;;;N;;;;03B8;
+ // 03B8;GREEK SMALL LETTER THETA;Ll;0;L;;;;;N;;;0398;;0398
+ // 03D1;GREEK THETA SYMBOL;Ll;0;L;<compat> 03B8;;;;N;GREEK SMALL LETTER SCRIPT THETA;;0398;;0398
+ // 03F4;GREEK CAPITAL THETA SYMBOL;Lu;0;L;<compat> 0398;;;;N;;;;03B8;
+ //
+ // Case-insensitive comparison should treat all of them as equivalent.
+ //
+ // But .toLowerCase() doesn't change ϑ (it's already lowercase),
+ // and .toUpperCase() doesn't change ϴ (already uppercase).
+ //
+ // Applying first lower then upper case normalizes any character:
+ // '\u0398\u03f4\u03b8\u03d1'.toLowerCase().toUpperCase() === '\u0398\u0398\u0398\u0398'
+ //
+ // Note: this is equivalent to unicode case folding; unicode normalization
+ // is a different step that is not required here.
+ //
+ // Final result should be uppercased, because it's later stored in an object
+ // (this avoid a conflict with Object.prototype members,
+ // most notably, `__proto__`)
+ //
+ return str.toLowerCase().toUpperCase();
+}
+
+// Re-export libraries commonly used in both markdown-it and its plugins,
+// so plugins won't have to depend on them explicitly, which reduces their
+// bundled size (e.g. a browser build).
+//
+const lib = {
+ mdurl: mdurl__namespace,
+ ucmicro: ucmicro__namespace
+};
+
+var utils = /*#__PURE__*/Object.freeze({
+ __proto__: null,
+ arrayReplaceAt: arrayReplaceAt,
+ assign: assign,
+ escapeHtml: escapeHtml,
+ escapeRE: escapeRE,
+ fromCodePoint: fromCodePoint,
+ has: has,
+ isMdAsciiPunct: isMdAsciiPunct,
+ isPunctChar: isPunctChar,
+ isSpace: isSpace,
+ isString: isString,
+ isValidEntityCode: isValidEntityCode,
+ isWhiteSpace: isWhiteSpace,
+ lib: lib,
+ normalizeReference: normalizeReference,
+ unescapeAll: unescapeAll,
+ unescapeMd: unescapeMd
+});
+
+// Parse link label
+//
+// this function assumes that first character ("[") already matches;
+// returns the end of the label
+//
+
+function parseLinkLabel(state, start, disableNested) {
+ let level, found, marker, prevPos;
+ const max = state.posMax;
+ const oldPos = state.pos;
+ state.pos = start + 1;
+ level = 1;
+ while (state.pos < max) {
+ marker = state.src.charCodeAt(state.pos);
+ if (marker === 0x5D /* ] */) {
+ level--;
+ if (level === 0) {
+ found = true;
+ break;
+ }
+ }
+ prevPos = state.pos;
+ state.md.inline.skipToken(state);
+ if (marker === 0x5B /* [ */) {
+ if (prevPos === state.pos - 1) {
+ // increase level if we find text `[`, which is not a part of any token
+ level++;
+ } else if (disableNested) {
+ state.pos = oldPos;
+ return -1;
+ }
+ }
+ }
+ let labelEnd = -1;
+ if (found) {
+ labelEnd = state.pos;
+ }
+
+ // restore old state
+ state.pos = oldPos;
+ return labelEnd;
+}
+
+// Parse link destination
+//
+
+function parseLinkDestination(str, start, max) {
+ let code;
+ let pos = start;
+ const result = {
+ ok: false,
+ pos: 0,
+ str: ''
+ };
+ if (str.charCodeAt(pos) === 0x3C /* < */) {
+ pos++;
+ while (pos < max) {
+ code = str.charCodeAt(pos);
+ if (code === 0x0A /* \n */) {
+ return result;
+ }
+ if (code === 0x3C /* < */) {
+ return result;
+ }
+ if (code === 0x3E /* > */) {
+ result.pos = pos + 1;
+ result.str = unescapeAll(str.slice(start + 1, pos));
+ result.ok = true;
+ return result;
+ }
+ if (code === 0x5C /* \ */ && pos + 1 < max) {
+ pos += 2;
+ continue;
+ }
+ pos++;
+ }
+
+ // no closing '>'
+ return result;
+ }
+
+ // this should be ... } else { ... branch
+
+ let level = 0;
+ while (pos < max) {
+ code = str.charCodeAt(pos);
+ if (code === 0x20) {
+ break;
+ }
+
+ // ascii control characters
+ if (code < 0x20 || code === 0x7F) {
+ break;
+ }
+ if (code === 0x5C /* \ */ && pos + 1 < max) {
+ if (str.charCodeAt(pos + 1) === 0x20) {
+ break;
+ }
+ pos += 2;
+ continue;
+ }
+ if (code === 0x28 /* ( */) {
+ level++;
+ if (level > 32) {
+ return result;
+ }
+ }
+ if (code === 0x29 /* ) */) {
+ if (level === 0) {
+ break;
+ }
+ level--;
+ }
+ pos++;
+ }
+ if (start === pos) {
+ return result;
+ }
+ if (level !== 0) {
+ return result;
+ }
+ result.str = unescapeAll(str.slice(start, pos));
+ result.pos = pos;
+ result.ok = true;
+ return result;
+}
+
+// Parse link title
+//
+
+
+// Parse link title within `str` in [start, max] range,
+// or continue previous parsing if `prev_state` is defined (equal to result of last execution).
+//
+function parseLinkTitle(str, start, max, prev_state) {
+ let code;
+ let pos = start;
+ const state = {
+ // if `true`, this is a valid link title
+ ok: false,
+ // if `true`, this link can be continued on the next line
+ can_continue: false,
+ // if `ok`, it's the position of the first character after the closing marker
+ pos: 0,
+ // if `ok`, it's the unescaped title
+ str: '',
+ // expected closing marker character code
+ marker: 0
+ };
+ if (prev_state) {
+ // this is a continuation of a previous parseLinkTitle call on the next line,
+ // used in reference links only
+ state.str = prev_state.str;
+ state.marker = prev_state.marker;
+ } else {
+ if (pos >= max) {
+ return state;
+ }
+ let marker = str.charCodeAt(pos);
+ if (marker !== 0x22 /* " */ && marker !== 0x27 /* ' */ && marker !== 0x28 /* ( */) {
+ return state;
+ }
+ start++;
+ pos++;
+
+ // if opening marker is "(", switch it to closing marker ")"
+ if (marker === 0x28) {
+ marker = 0x29;
+ }
+ state.marker = marker;
+ }
+ while (pos < max) {
+ code = str.charCodeAt(pos);
+ if (code === state.marker) {
+ state.pos = pos + 1;
+ state.str += unescapeAll(str.slice(start, pos));
+ state.ok = true;
+ return state;
+ } else if (code === 0x28 /* ( */ && state.marker === 0x29 /* ) */) {
+ return state;
+ } else if (code === 0x5C /* \ */ && pos + 1 < max) {
+ pos++;
+ }
+ pos++;
+ }
+
+ // no closing marker found, but this link title may continue on the next line (for references)
+ state.can_continue = true;
+ state.str += unescapeAll(str.slice(start, pos));
+ return state;
+}
+
+// Just a shortcut for bulk export
+
+var helpers = /*#__PURE__*/Object.freeze({
+ __proto__: null,
+ parseLinkDestination: parseLinkDestination,
+ parseLinkLabel: parseLinkLabel,
+ parseLinkTitle: parseLinkTitle
+});
+
+/**
+ * class Renderer
+ *
+ * Generates HTML from parsed token stream. Each instance has independent
+ * copy of rules. Those can be rewritten with ease. Also, you can add new
+ * rules if you create plugin and adds new token types.
+ **/
+
+const default_rules = {};
+default_rules.code_inline = function (tokens, idx, options, env, slf) {
+ const token = tokens[idx];
+ return '<code' + slf.renderAttrs(token) + '>' + escapeHtml(token.content) + '</code>';
+};
+default_rules.code_block = function (tokens, idx, options, env, slf) {
+ const token = tokens[idx];
+ return '<pre' + slf.renderAttrs(token) + '><code>' + escapeHtml(tokens[idx].content) + '</code></pre>\n';
+};
+default_rules.fence = function (tokens, idx, options, env, slf) {
+ const token = tokens[idx];
+ const info = token.info ? unescapeAll(token.info).trim() : '';
+ let langName = '';
+ let langAttrs = '';
+ if (info) {
+ const arr = info.split(/(\s+)/g);
+ langName = arr[0];
+ langAttrs = arr.slice(2).join('');
+ }
+ let highlighted;
+ if (options.highlight) {
+ highlighted = options.highlight(token.content, langName, langAttrs) || escapeHtml(token.content);
+ } else {
+ highlighted = escapeHtml(token.content);
+ }
+ if (highlighted.indexOf('<pre') === 0) {
+ return highlighted + '\n';
+ }
+
+ // If language exists, inject class gently, without modifying original token.
+ // May be, one day we will add .deepClone() for token and simplify this part, but
+ // now we prefer to keep things local.
+ if (info) {
+ const i = token.attrIndex('class');
+ const tmpAttrs = token.attrs ? token.attrs.slice() : [];
+ if (i < 0) {
+ tmpAttrs.push(['class', options.langPrefix + langName]);
+ } else {
+ tmpAttrs[i] = tmpAttrs[i].slice();
+ tmpAttrs[i][1] += ' ' + options.langPrefix + langName;
+ }
+
+ // Fake token just to render attributes
+ const tmpToken = {
+ attrs: tmpAttrs
+ };
+ return `<pre><code${slf.renderAttrs(tmpToken)}>${highlighted}</code></pre>\n`;
+ }
+ return `<pre><code${slf.renderAttrs(token)}>${highlighted}</code></pre>\n`;
+};
+default_rules.image = function (tokens, idx, options, env, slf) {
+ const token = tokens[idx];
+
+ // "alt" attr MUST be set, even if empty. Because it's mandatory and
+ // should be placed on proper position for tests.
+ //
+ // Replace content with actual value
+
+ token.attrs[token.attrIndex('alt')][1] = slf.renderInlineAsText(token.children, options, env);
+ return slf.renderToken(tokens, idx, options);
+};
+default_rules.hardbreak = function (tokens, idx, options /*, env */) {
+ return options.xhtmlOut ? '<br />\n' : '<br>\n';
+};
+default_rules.softbreak = function (tokens, idx, options /*, env */) {
+ return options.breaks ? options.xhtmlOut ? '<br />\n' : '<br>\n' : '\n';
+};
+default_rules.text = function (tokens, idx /*, options, env */) {
+ return escapeHtml(tokens[idx].content);
+};
+default_rules.html_block = function (tokens, idx /*, options, env */) {
+ return tokens[idx].content;
+};
+default_rules.html_inline = function (tokens, idx /*, options, env */) {
+ return tokens[idx].content;
+};
+
+/**
+ * new Renderer()
+ *
+ * Creates new [[Renderer]] instance and fill [[Renderer#rules]] with defaults.
+ **/
+function Renderer() {
+ /**
+ * Renderer#rules -> Object
+ *
+ * Contains render rules for tokens. Can be updated and extended.
+ *
+ * ##### Example
+ *
+ * ```javascript
+ * var md = require('markdown-it')();
+ *
+ * md.renderer.rules.strong_open = function () { return '<b>'; };
+ * md.renderer.rules.strong_close = function () { return '</b>'; };
+ *
+ * var result = md.renderInline(...);
+ * ```
+ *
+ * Each rule is called as independent static function with fixed signature:
+ *
+ * ```javascript
+ * function my_token_render(tokens, idx, options, env, renderer) {
+ * // ...
+ * return renderedHTML;
+ * }
+ * ```
+ *
+ * See [source code](https://github.com/markdown-it/markdown-it/blob/master/lib/renderer.mjs)
+ * for more details and examples.
+ **/
+ this.rules = assign({}, default_rules);
+}
+
+/**
+ * Renderer.renderAttrs(token) -> String
+ *
+ * Render token attributes to string.
+ **/
+Renderer.prototype.renderAttrs = function renderAttrs(token) {
+ let i, l, result;
+ if (!token.attrs) {
+ return '';
+ }
+ result = '';
+ for (i = 0, l = token.attrs.length; i < l; i++) {
+ result += ' ' + escapeHtml(token.attrs[i][0]) + '="' + escapeHtml(token.attrs[i][1]) + '"';
+ }
+ return result;
+};
+
+/**
+ * Renderer.renderToken(tokens, idx, options) -> String
+ * - tokens (Array): list of tokens
+ * - idx (Numbed): token index to render
+ * - options (Object): params of parser instance
+ *
+ * Default token renderer. Can be overriden by custom function
+ * in [[Renderer#rules]].
+ **/
+Renderer.prototype.renderToken = function renderToken(tokens, idx, options) {
+ const token = tokens[idx];
+ let result = '';
+
+ // Tight list paragraphs
+ if (token.hidden) {
+ return '';
+ }
+
+ // Insert a newline between hidden paragraph and subsequent opening
+ // block-level tag.
+ //
+ // For example, here we should insert a newline before blockquote:
+ // - a
+ // >
+ //
+ if (token.block && token.nesting !== -1 && idx && tokens[idx - 1].hidden) {
+ result += '\n';
+ }
+
+ // Add token name, e.g. `<img`
+ result += (token.nesting === -1 ? '</' : '<') + token.tag;
+
+ // Encode attributes, e.g. `<img src="foo"`
+ result += this.renderAttrs(token);
+
+ // Add a slash for self-closing tags, e.g. `<img src="foo" /`
+ if (token.nesting === 0 && options.xhtmlOut) {
+ result += ' /';
+ }
+
+ // Check if we need to add a newline after this tag
+ let needLf = false;
+ if (token.block) {
+ needLf = true;
+ if (token.nesting === 1) {
+ if (idx + 1 < tokens.length) {
+ const nextToken = tokens[idx + 1];
+ if (nextToken.type === 'inline' || nextToken.hidden) {
+ // Block-level tag containing an inline tag.
+ //
+ needLf = false;
+ } else if (nextToken.nesting === -1 && nextToken.tag === token.tag) {
+ // Opening tag + closing tag of the same type. E.g. `<li></li>`.
+ //
+ needLf = false;
+ }
+ }
+ }
+ }
+ result += needLf ? '>\n' : '>';
+ return result;
+};
+
+/**
+ * Renderer.renderInline(tokens, options, env) -> String
+ * - tokens (Array): list on block tokens to render
+ * - options (Object): params of parser instance
+ * - env (Object): additional data from parsed input (references, for example)
+ *
+ * The same as [[Renderer.render]], but for single token of `inline` type.
+ **/
+Renderer.prototype.renderInline = function (tokens, options, env) {
+ let result = '';
+ const rules = this.rules;
+ for (let i = 0, len = tokens.length; i < len; i++) {
+ const type = tokens[i].type;
+ if (typeof rules[type] !== 'undefined') {
+ result += rules[type](tokens, i, options, env, this);
+ } else {
+ result += this.renderToken(tokens, i, options);
+ }
+ }
+ return result;
+};
+
+/** internal
+ * Renderer.renderInlineAsText(tokens, options, env) -> String
+ * - tokens (Array): list on block tokens to render
+ * - options (Object): params of parser instance
+ * - env (Object): additional data from parsed input (references, for example)
+ *
+ * Special kludge for image `alt` attributes to conform CommonMark spec.
+ * Don't try to use it! Spec requires to show `alt` content with stripped markup,
+ * instead of simple escaping.
+ **/
+Renderer.prototype.renderInlineAsText = function (tokens, options, env) {
+ let result = '';
+ for (let i = 0, len = tokens.length; i < len; i++) {
+ switch (tokens[i].type) {
+ case 'text':
+ result += tokens[i].content;
+ break;
+ case 'image':
+ result += this.renderInlineAsText(tokens[i].children, options, env);
+ break;
+ case 'html_inline':
+ case 'html_block':
+ result += tokens[i].content;
+ break;
+ case 'softbreak':
+ case 'hardbreak':
+ result += '\n';
+ break;
+ // all other tokens are skipped
+ }
+ }
+ return result;
+};
+
+/**
+ * Renderer.render(tokens, options, env) -> String
+ * - tokens (Array): list on block tokens to render
+ * - options (Object): params of parser instance
+ * - env (Object): additional data from parsed input (references, for example)
+ *
+ * Takes token stream and generates HTML. Probably, you will never need to call
+ * this method directly.
+ **/
+Renderer.prototype.render = function (tokens, options, env) {
+ let result = '';
+ const rules = this.rules;
+ for (let i = 0, len = tokens.length; i < len; i++) {
+ const type = tokens[i].type;
+ if (type === 'inline') {
+ result += this.renderInline(tokens[i].children, options, env);
+ } else if (typeof rules[type] !== 'undefined') {
+ result += rules[type](tokens, i, options, env, this);
+ } else {
+ result += this.renderToken(tokens, i, options, env);
+ }
+ }
+ return result;
+};
+
+/**
+ * class Ruler
+ *
+ * Helper class, used by [[MarkdownIt#core]], [[MarkdownIt#block]] and
+ * [[MarkdownIt#inline]] to manage sequences of functions (rules):
+ *
+ * - keep rules in defined order
+ * - assign the name to each rule
+ * - enable/disable rules
+ * - add/replace rules
+ * - allow assign rules to additional named chains (in the same)
+ * - cacheing lists of active rules
+ *
+ * You will not need use this class directly until write plugins. For simple
+ * rules control use [[MarkdownIt.disable]], [[MarkdownIt.enable]] and
+ * [[MarkdownIt.use]].
+ **/
+
+/**
+ * new Ruler()
+ **/
+function Ruler() {
+ // List of added rules. Each element is:
+ //
+ // {
+ // name: XXX,
+ // enabled: Boolean,
+ // fn: Function(),
+ // alt: [ name2, name3 ]
+ // }
+ //
+ this.__rules__ = [];
+
+ // Cached rule chains.
+ //
+ // First level - chain name, '' for default.
+ // Second level - diginal anchor for fast filtering by charcodes.
+ //
+ this.__cache__ = null;
+}
+
+// Helper methods, should not be used directly
+
+// Find rule index by name
+//
+Ruler.prototype.__find__ = function (name) {
+ for (let i = 0; i < this.__rules__.length; i++) {
+ if (this.__rules__[i].name === name) {
+ return i;
+ }
+ }
+ return -1;
+};
+
+// Build rules lookup cache
+//
+Ruler.prototype.__compile__ = function () {
+ const self = this;
+ const chains = [''];
+
+ // collect unique names
+ self.__rules__.forEach(function (rule) {
+ if (!rule.enabled) {
+ return;
+ }
+ rule.alt.forEach(function (altName) {
+ if (chains.indexOf(altName) < 0) {
+ chains.push(altName);
+ }
+ });
+ });
+ self.__cache__ = {};
+ chains.forEach(function (chain) {
+ self.__cache__[chain] = [];
+ self.__rules__.forEach(function (rule) {
+ if (!rule.enabled) {
+ return;
+ }
+ if (chain && rule.alt.indexOf(chain) < 0) {
+ return;
+ }
+ self.__cache__[chain].push(rule.fn);
+ });
+ });
+};
+
+/**
+ * Ruler.at(name, fn [, options])
+ * - name (String): rule name to replace.
+ * - fn (Function): new rule function.
+ * - options (Object): new rule options (not mandatory).
+ *
+ * Replace rule by name with new function & options. Throws error if name not
+ * found.
+ *
+ * ##### Options:
+ *
+ * - __alt__ - array with names of "alternate" chains.
+ *
+ * ##### Example
+ *
+ * Replace existing typographer replacement rule with new one:
+ *
+ * ```javascript
+ * var md = require('markdown-it')();
+ *
+ * md.core.ruler.at('replacements', function replace(state) {
+ * //...
+ * });
+ * ```
+ **/
+Ruler.prototype.at = function (name, fn, options) {
+ const index = this.__find__(name);
+ const opt = options || {};
+ if (index === -1) {
+ throw new Error('Parser rule not found: ' + name);
+ }
+ this.__rules__[index].fn = fn;
+ this.__rules__[index].alt = opt.alt || [];
+ this.__cache__ = null;
+};
+
+/**
+ * Ruler.before(beforeName, ruleName, fn [, options])
+ * - beforeName (String): new rule will be added before this one.
+ * - ruleName (String): name of added rule.
+ * - fn (Function): rule function.
+ * - options (Object): rule options (not mandatory).
+ *
+ * Add new rule to chain before one with given name. See also
+ * [[Ruler.after]], [[Ruler.push]].
+ *
+ * ##### Options:
+ *
+ * - __alt__ - array with names of "alternate" chains.
+ *
+ * ##### Example
+ *
+ * ```javascript
+ * var md = require('markdown-it')();
+ *
+ * md.block.ruler.before('paragraph', 'my_rule', function replace(state) {
+ * //...
+ * });
+ * ```
+ **/
+Ruler.prototype.before = function (beforeName, ruleName, fn, options) {
+ const index = this.__find__(beforeName);
+ const opt = options || {};
+ if (index === -1) {
+ throw new Error('Parser rule not found: ' + beforeName);
+ }
+ this.__rules__.splice(index, 0, {
+ name: ruleName,
+ enabled: true,
+ fn,
+ alt: opt.alt || []
+ });
+ this.__cache__ = null;
+};
+
+/**
+ * Ruler.after(afterName, ruleName, fn [, options])
+ * - afterName (String): new rule will be added after this one.
+ * - ruleName (String): name of added rule.
+ * - fn (Function): rule function.
+ * - options (Object): rule options (not mandatory).
+ *
+ * Add new rule to chain after one with given name. See also
+ * [[Ruler.before]], [[Ruler.push]].
+ *
+ * ##### Options:
+ *
+ * - __alt__ - array with names of "alternate" chains.
+ *
+ * ##### Example
+ *
+ * ```javascript
+ * var md = require('markdown-it')();
+ *
+ * md.inline.ruler.after('text', 'my_rule', function replace(state) {
+ * //...
+ * });
+ * ```
+ **/
+Ruler.prototype.after = function (afterName, ruleName, fn, options) {
+ const index = this.__find__(afterName);
+ const opt = options || {};
+ if (index === -1) {
+ throw new Error('Parser rule not found: ' + afterName);
+ }
+ this.__rules__.splice(index + 1, 0, {
+ name: ruleName,
+ enabled: true,
+ fn,
+ alt: opt.alt || []
+ });
+ this.__cache__ = null;
+};
+
+/**
+ * Ruler.push(ruleName, fn [, options])
+ * - ruleName (String): name of added rule.
+ * - fn (Function): rule function.
+ * - options (Object): rule options (not mandatory).
+ *
+ * Push new rule to the end of chain. See also
+ * [[Ruler.before]], [[Ruler.after]].
+ *
+ * ##### Options:
+ *
+ * - __alt__ - array with names of "alternate" chains.
+ *
+ * ##### Example
+ *
+ * ```javascript
+ * var md = require('markdown-it')();
+ *
+ * md.core.ruler.push('my_rule', function replace(state) {
+ * //...
+ * });
+ * ```
+ **/
+Ruler.prototype.push = function (ruleName, fn, options) {
+ const opt = options || {};
+ this.__rules__.push({
+ name: ruleName,
+ enabled: true,
+ fn,
+ alt: opt.alt || []
+ });
+ this.__cache__ = null;
+};
+
+/**
+ * Ruler.enable(list [, ignoreInvalid]) -> Array
+ * - list (String|Array): list of rule names to enable.
+ * - ignoreInvalid (Boolean): set `true` to ignore errors when rule not found.
+ *
+ * Enable rules with given names. If any rule name not found - throw Error.
+ * Errors can be disabled by second param.
+ *
+ * Returns list of found rule names (if no exception happened).
+ *
+ * See also [[Ruler.disable]], [[Ruler.enableOnly]].
+ **/
+Ruler.prototype.enable = function (list, ignoreInvalid) {
+ if (!Array.isArray(list)) {
+ list = [list];
+ }
+ const result = [];
+
+ // Search by name and enable
+ list.forEach(function (name) {
+ const idx = this.__find__(name);
+ if (idx < 0) {
+ if (ignoreInvalid) {
+ return;
+ }
+ throw new Error('Rules manager: invalid rule name ' + name);
+ }
+ this.__rules__[idx].enabled = true;
+ result.push(name);
+ }, this);
+ this.__cache__ = null;
+ return result;
+};
+
+/**
+ * Ruler.enableOnly(list [, ignoreInvalid])
+ * - list (String|Array): list of rule names to enable (whitelist).
+ * - ignoreInvalid (Boolean): set `true` to ignore errors when rule not found.
+ *
+ * Enable rules with given names, and disable everything else. If any rule name
+ * not found - throw Error. Errors can be disabled by second param.
+ *
+ * See also [[Ruler.disable]], [[Ruler.enable]].
+ **/
+Ruler.prototype.enableOnly = function (list, ignoreInvalid) {
+ if (!Array.isArray(list)) {
+ list = [list];
+ }
+ this.__rules__.forEach(function (rule) {
+ rule.enabled = false;
+ });
+ this.enable(list, ignoreInvalid);
+};
+
+/**
+ * Ruler.disable(list [, ignoreInvalid]) -> Array
+ * - list (String|Array): list of rule names to disable.
+ * - ignoreInvalid (Boolean): set `true` to ignore errors when rule not found.
+ *
+ * Disable rules with given names. If any rule name not found - throw Error.
+ * Errors can be disabled by second param.
+ *
+ * Returns list of found rule names (if no exception happened).
+ *
+ * See also [[Ruler.enable]], [[Ruler.enableOnly]].
+ **/
+Ruler.prototype.disable = function (list, ignoreInvalid) {
+ if (!Array.isArray(list)) {
+ list = [list];
+ }
+ const result = [];
+
+ // Search by name and disable
+ list.forEach(function (name) {
+ const idx = this.__find__(name);
+ if (idx < 0) {
+ if (ignoreInvalid) {
+ return;
+ }
+ throw new Error('Rules manager: invalid rule name ' + name);
+ }
+ this.__rules__[idx].enabled = false;
+ result.push(name);
+ }, this);
+ this.__cache__ = null;
+ return result;
+};
+
+/**
+ * Ruler.getRules(chainName) -> Array
+ *
+ * Return array of active functions (rules) for given chain name. It analyzes
+ * rules configuration, compiles caches if not exists and returns result.
+ *
+ * Default chain name is `''` (empty string). It can't be skipped. That's
+ * done intentionally, to keep signature monomorphic for high speed.
+ **/
+Ruler.prototype.getRules = function (chainName) {
+ if (this.__cache__ === null) {
+ this.__compile__();
+ }
+
+ // Chain can be empty, if rules disabled. But we still have to return Array.
+ return this.__cache__[chainName] || [];
+};
+
+// Token class
+
+/**
+ * class Token
+ **/
+
+/**
+ * new Token(type, tag, nesting)
+ *
+ * Create new token and fill passed properties.
+ **/
+function Token(type, tag, nesting) {
+ /**
+ * Token#type -> String
+ *
+ * Type of the token (string, e.g. "paragraph_open")
+ **/
+ this.type = type;
+
+ /**
+ * Token#tag -> String
+ *
+ * html tag name, e.g. "p"
+ **/
+ this.tag = tag;
+
+ /**
+ * Token#attrs -> Array
+ *
+ * Html attributes. Format: `[ [ name1, value1 ], [ name2, value2 ] ]`
+ **/
+ this.attrs = null;
+
+ /**
+ * Token#map -> Array
+ *
+ * Source map info. Format: `[ line_begin, line_end ]`
+ **/
+ this.map = null;
+
+ /**
+ * Token#nesting -> Number
+ *
+ * Level change (number in {-1, 0, 1} set), where:
+ *
+ * - `1` means the tag is opening
+ * - `0` means the tag is self-closing
+ * - `-1` means the tag is closing
+ **/
+ this.nesting = nesting;
+
+ /**
+ * Token#level -> Number
+ *
+ * nesting level, the same as `state.level`
+ **/
+ this.level = 0;
+
+ /**
+ * Token#children -> Array
+ *
+ * An array of child nodes (inline and img tokens)
+ **/
+ this.children = null;
+
+ /**
+ * Token#content -> String
+ *
+ * In a case of self-closing tag (code, html, fence, etc.),
+ * it has contents of this tag.
+ **/
+ this.content = '';
+
+ /**
+ * Token#markup -> String
+ *
+ * '*' or '_' for emphasis, fence string for fence, etc.
+ **/
+ this.markup = '';
+
+ /**
+ * Token#info -> String
+ *
+ * Additional information:
+ *
+ * - Info string for "fence" tokens
+ * - The value "auto" for autolink "link_open" and "link_close" tokens
+ * - The string value of the item marker for ordered-list "list_item_open" tokens
+ **/
+ this.info = '';
+
+ /**
+ * Token#meta -> Object
+ *
+ * A place for plugins to store an arbitrary data
+ **/
+ this.meta = null;
+
+ /**
+ * Token#block -> Boolean
+ *
+ * True for block-level tokens, false for inline tokens.
+ * Used in renderer to calculate line breaks
+ **/
+ this.block = false;
+
+ /**
+ * Token#hidden -> Boolean
+ *
+ * If it's true, ignore this element when rendering. Used for tight lists
+ * to hide paragraphs.
+ **/
+ this.hidden = false;
+}
+
+/**
+ * Token.attrIndex(name) -> Number
+ *
+ * Search attribute index by name.
+ **/
+Token.prototype.attrIndex = function attrIndex(name) {
+ if (!this.attrs) {
+ return -1;
+ }
+ const attrs = this.attrs;
+ for (let i = 0, len = attrs.length; i < len; i++) {
+ if (attrs[i][0] === name) {
+ return i;
+ }
+ }
+ return -1;
+};
+
+/**
+ * Token.attrPush(attrData)
+ *
+ * Add `[ name, value ]` attribute to list. Init attrs if necessary
+ **/
+Token.prototype.attrPush = function attrPush(attrData) {
+ if (this.attrs) {
+ this.attrs.push(attrData);
+ } else {
+ this.attrs = [attrData];
+ }
+};
+
+/**
+ * Token.attrSet(name, value)
+ *
+ * Set `name` attribute to `value`. Override old value if exists.
+ **/
+Token.prototype.attrSet = function attrSet(name, value) {
+ const idx = this.attrIndex(name);
+ const attrData = [name, value];
+ if (idx < 0) {
+ this.attrPush(attrData);
+ } else {
+ this.attrs[idx] = attrData;
+ }
+};
+
+/**
+ * Token.attrGet(name)
+ *
+ * Get the value of attribute `name`, or null if it does not exist.
+ **/
+Token.prototype.attrGet = function attrGet(name) {
+ const idx = this.attrIndex(name);
+ let value = null;
+ if (idx >= 0) {
+ value = this.attrs[idx][1];
+ }
+ return value;
+};
+
+/**
+ * Token.attrJoin(name, value)
+ *
+ * Join value to existing attribute via space. Or create new attribute if not
+ * exists. Useful to operate with token classes.
+ **/
+Token.prototype.attrJoin = function attrJoin(name, value) {
+ const idx = this.attrIndex(name);
+ if (idx < 0) {
+ this.attrPush([name, value]);
+ } else {
+ this.attrs[idx][1] = this.attrs[idx][1] + ' ' + value;
+ }
+};
+
+// Core state object
+//
+
+function StateCore(src, md, env) {
+ this.src = src;
+ this.env = env;
+ this.tokens = [];
+ this.inlineMode = false;
+ this.md = md; // link to parser instance
+}
+
+// re-export Token class to use in core rules
+StateCore.prototype.Token = Token;
+
+// Normalize input string
+
+// https://spec.commonmark.org/0.29/#line-ending
+const NEWLINES_RE = /\r\n?|\n/g;
+const NULL_RE = /\0/g;
+function normalize(state) {
+ let str;
+
+ // Normalize newlines
+ str = state.src.replace(NEWLINES_RE, '\n');
+
+ // Replace NULL characters
+ str = str.replace(NULL_RE, '\uFFFD');
+ state.src = str;
+}
+
+function block(state) {
+ let token;
+ if (state.inlineMode) {
+ token = new state.Token('inline', '', 0);
+ token.content = state.src;
+ token.map = [0, 1];
+ token.children = [];
+ state.tokens.push(token);
+ } else {
+ state.md.block.parse(state.src, state.md, state.env, state.tokens);
+ }
+}
+
+function inline(state) {
+ const tokens = state.tokens;
+
+ // Parse inlines
+ for (let i = 0, l = tokens.length; i < l; i++) {
+ const tok = tokens[i];
+ if (tok.type === 'inline') {
+ state.md.inline.parse(tok.content, state.md, state.env, tok.children);
+ }
+ }
+}
+
+// Replace link-like texts with link nodes.
+//
+// Currently restricted by `md.validateLink()` to http/https/ftp
+//
+
+function isLinkOpen$1(str) {
+ return /^<a[>\s]/i.test(str);
+}
+function isLinkClose$1(str) {
+ return /^<\/a\s*>/i.test(str);
+}
+function linkify$1(state) {
+ const blockTokens = state.tokens;
+ if (!state.md.options.linkify) {
+ return;
+ }
+ for (let j = 0, l = blockTokens.length; j < l; j++) {
+ if (blockTokens[j].type !== 'inline' || !state.md.linkify.pretest(blockTokens[j].content)) {
+ continue;
+ }
+ let tokens = blockTokens[j].children;
+ let htmlLinkLevel = 0;
+
+ // We scan from the end, to keep position when new tags added.
+ // Use reversed logic in links start/end match
+ for (let i = tokens.length - 1; i >= 0; i--) {
+ const currentToken = tokens[i];
+
+ // Skip content of markdown links
+ if (currentToken.type === 'link_close') {
+ i--;
+ while (tokens[i].level !== currentToken.level && tokens[i].type !== 'link_open') {
+ i--;
+ }
+ continue;
+ }
+
+ // Skip content of html tag links
+ if (currentToken.type === 'html_inline') {
+ if (isLinkOpen$1(currentToken.content) && htmlLinkLevel > 0) {
+ htmlLinkLevel--;
+ }
+ if (isLinkClose$1(currentToken.content)) {
+ htmlLinkLevel++;
+ }
+ }
+ if (htmlLinkLevel > 0) {
+ continue;
+ }
+ if (currentToken.type === 'text' && state.md.linkify.test(currentToken.content)) {
+ const text = currentToken.content;
+ let links = state.md.linkify.match(text);
+
+ // Now split string to nodes
+ const nodes = [];
+ let level = currentToken.level;
+ let lastPos = 0;
+
+ // forbid escape sequence at the start of the string,
+ // this avoids http\://example.com/ from being linkified as
+ // http:<a href="//example.com/">//example.com/</a>
+ if (links.length > 0 && links[0].index === 0 && i > 0 && tokens[i - 1].type === 'text_special') {
+ links = links.slice(1);
+ }
+ for (let ln = 0; ln < links.length; ln++) {
+ const url = links[ln].url;
+ const fullUrl = state.md.normalizeLink(url);
+ if (!state.md.validateLink(fullUrl)) {
+ continue;
+ }
+ let urlText = links[ln].text;
+
+ // Linkifier might send raw hostnames like "example.com", where url
+ // starts with domain name. So we prepend http:// in those cases,
+ // and remove it afterwards.
+ //
+ if (!links[ln].schema) {
+ urlText = state.md.normalizeLinkText('http://' + urlText).replace(/^http:\/\//, '');
+ } else if (links[ln].schema === 'mailto:' && !/^mailto:/i.test(urlText)) {
+ urlText = state.md.normalizeLinkText('mailto:' + urlText).replace(/^mailto:/, '');
+ } else {
+ urlText = state.md.normalizeLinkText(urlText);
+ }
+ const pos = links[ln].index;
+ if (pos > lastPos) {
+ const token = new state.Token('text', '', 0);
+ token.content = text.slice(lastPos, pos);
+ token.level = level;
+ nodes.push(token);
+ }
+ const token_o = new state.Token('link_open', 'a', 1);
+ token_o.attrs = [['href', fullUrl]];
+ token_o.level = level++;
+ token_o.markup = 'linkify';
+ token_o.info = 'auto';
+ nodes.push(token_o);
+ const token_t = new state.Token('text', '', 0);
+ token_t.content = urlText;
+ token_t.level = level;
+ nodes.push(token_t);
+ const token_c = new state.Token('link_close', 'a', -1);
+ token_c.level = --level;
+ token_c.markup = 'linkify';
+ token_c.info = 'auto';
+ nodes.push(token_c);
+ lastPos = links[ln].lastIndex;
+ }
+ if (lastPos < text.length) {
+ const token = new state.Token('text', '', 0);
+ token.content = text.slice(lastPos);
+ token.level = level;
+ nodes.push(token);
+ }
+
+ // replace current node
+ blockTokens[j].children = tokens = arrayReplaceAt(tokens, i, nodes);
+ }
+ }
+ }
+}
+
+// Simple typographic replacements
+//
+// (c) (C) → ©
+// (tm) (TM) → ™
+// (r) (R) → ®
+// +- → ±
+// ... → … (also ?.... → ?.., !.... → !..)
+// ???????? → ???, !!!!! → !!!, `,,` → `,`
+// -- → &ndash;, --- → &mdash;
+//
+
+// TODO:
+// - fractionals 1/2, 1/4, 3/4 -> ½, ¼, ¾
+// - multiplications 2 x 4 -> 2 × 4
+
+const RARE_RE = /\+-|\.\.|\?\?\?\?|!!!!|,,|--/;
+
+// Workaround for phantomjs - need regex without /g flag,
+// or root check will fail every second time
+const SCOPED_ABBR_TEST_RE = /\((c|tm|r)\)/i;
+const SCOPED_ABBR_RE = /\((c|tm|r)\)/ig;
+const SCOPED_ABBR = {
+ c: '©',
+ r: '®',
+ tm: '™'
+};
+function replaceFn(match, name) {
+ return SCOPED_ABBR[name.toLowerCase()];
+}
+function replace_scoped(inlineTokens) {
+ let inside_autolink = 0;
+ for (let i = inlineTokens.length - 1; i >= 0; i--) {
+ const token = inlineTokens[i];
+ if (token.type === 'text' && !inside_autolink) {
+ token.content = token.content.replace(SCOPED_ABBR_RE, replaceFn);
+ }
+ if (token.type === 'link_open' && token.info === 'auto') {
+ inside_autolink--;
+ }
+ if (token.type === 'link_close' && token.info === 'auto') {
+ inside_autolink++;
+ }
+ }
+}
+function replace_rare(inlineTokens) {
+ let inside_autolink = 0;
+ for (let i = inlineTokens.length - 1; i >= 0; i--) {
+ const token = inlineTokens[i];
+ if (token.type === 'text' && !inside_autolink) {
+ if (RARE_RE.test(token.content)) {
+ token.content = token.content.replace(/\+-/g, '±')
+ // .., ..., ....... -> …
+ // but ?..... & !..... -> ?.. & !..
+ .replace(/\.{2,}/g, '…').replace(/([?!])…/g, '$1..').replace(/([?!]){4,}/g, '$1$1$1').replace(/,{2,}/g, ',')
+ // em-dash
+ .replace(/(^|[^-])---(?=[^-]|$)/mg, '$1\u2014')
+ // en-dash
+ .replace(/(^|\s)--(?=\s|$)/mg, '$1\u2013').replace(/(^|[^-\s])--(?=[^-\s]|$)/mg, '$1\u2013');
+ }
+ }
+ if (token.type === 'link_open' && token.info === 'auto') {
+ inside_autolink--;
+ }
+ if (token.type === 'link_close' && token.info === 'auto') {
+ inside_autolink++;
+ }
+ }
+}
+function replace(state) {
+ let blkIdx;
+ if (!state.md.options.typographer) {
+ return;
+ }
+ for (blkIdx = state.tokens.length - 1; blkIdx >= 0; blkIdx--) {
+ if (state.tokens[blkIdx].type !== 'inline') {
+ continue;
+ }
+ if (SCOPED_ABBR_TEST_RE.test(state.tokens[blkIdx].content)) {
+ replace_scoped(state.tokens[blkIdx].children);
+ }
+ if (RARE_RE.test(state.tokens[blkIdx].content)) {
+ replace_rare(state.tokens[blkIdx].children);
+ }
+ }
+}
+
+// Convert straight quotation marks to typographic ones
+//
+
+const QUOTE_TEST_RE = /['"]/;
+const QUOTE_RE = /['"]/g;
+const APOSTROPHE = '\u2019'; /* ’ */
+
+function replaceAt(str, index, ch) {
+ return str.slice(0, index) + ch + str.slice(index + 1);
+}
+function process_inlines(tokens, state) {
+ let j;
+ const stack = [];
+ for (let i = 0; i < tokens.length; i++) {
+ const token = tokens[i];
+ const thisLevel = tokens[i].level;
+ for (j = stack.length - 1; j >= 0; j--) {
+ if (stack[j].level <= thisLevel) {
+ break;
+ }
+ }
+ stack.length = j + 1;
+ if (token.type !== 'text') {
+ continue;
+ }
+ let text = token.content;
+ let pos = 0;
+ let max = text.length;
+
+ /* eslint no-labels:0,block-scoped-var:0 */
+ OUTER: while (pos < max) {
+ QUOTE_RE.lastIndex = pos;
+ const t = QUOTE_RE.exec(text);
+ if (!t) {
+ break;
+ }
+ let canOpen = true;
+ let canClose = true;
+ pos = t.index + 1;
+ const isSingle = t[0] === "'";
+
+ // Find previous character,
+ // default to space if it's the beginning of the line
+ //
+ let lastChar = 0x20;
+ if (t.index - 1 >= 0) {
+ lastChar = text.charCodeAt(t.index - 1);
+ } else {
+ for (j = i - 1; j >= 0; j--) {
+ if (tokens[j].type === 'softbreak' || tokens[j].type === 'hardbreak') break; // lastChar defaults to 0x20
+ if (!tokens[j].content) continue; // should skip all tokens except 'text', 'html_inline' or 'code_inline'
+
+ lastChar = tokens[j].content.charCodeAt(tokens[j].content.length - 1);
+ break;
+ }
+ }
+
+ // Find next character,
+ // default to space if it's the end of the line
+ //
+ let nextChar = 0x20;
+ if (pos < max) {
+ nextChar = text.charCodeAt(pos);
+ } else {
+ for (j = i + 1; j < tokens.length; j++) {
+ if (tokens[j].type === 'softbreak' || tokens[j].type === 'hardbreak') break; // nextChar defaults to 0x20
+ if (!tokens[j].content) continue; // should skip all tokens except 'text', 'html_inline' or 'code_inline'
+
+ nextChar = tokens[j].content.charCodeAt(0);
+ break;
+ }
+ }
+ const isLastPunctChar = isMdAsciiPunct(lastChar) || isPunctChar(String.fromCharCode(lastChar));
+ const isNextPunctChar = isMdAsciiPunct(nextChar) || isPunctChar(String.fromCharCode(nextChar));
+ const isLastWhiteSpace = isWhiteSpace(lastChar);
+ const isNextWhiteSpace = isWhiteSpace(nextChar);
+ if (isNextWhiteSpace) {
+ canOpen = false;
+ } else if (isNextPunctChar) {
+ if (!(isLastWhiteSpace || isLastPunctChar)) {
+ canOpen = false;
+ }
+ }
+ if (isLastWhiteSpace) {
+ canClose = false;
+ } else if (isLastPunctChar) {
+ if (!(isNextWhiteSpace || isNextPunctChar)) {
+ canClose = false;
+ }
+ }
+ if (nextChar === 0x22 /* " */ && t[0] === '"') {
+ if (lastChar >= 0x30 /* 0 */ && lastChar <= 0x39 /* 9 */) {
+ // special case: 1"" - count first quote as an inch
+ canClose = canOpen = false;
+ }
+ }
+ if (canOpen && canClose) {
+ // Replace quotes in the middle of punctuation sequence, but not
+ // in the middle of the words, i.e.:
+ //
+ // 1. foo " bar " baz - not replaced
+ // 2. foo-"-bar-"-baz - replaced
+ // 3. foo"bar"baz - not replaced
+ //
+ canOpen = isLastPunctChar;
+ canClose = isNextPunctChar;
+ }
+ if (!canOpen && !canClose) {
+ // middle of word
+ if (isSingle) {
+ token.content = replaceAt(token.content, t.index, APOSTROPHE);
+ }
+ continue;
+ }
+ if (canClose) {
+ // this could be a closing quote, rewind the stack to get a match
+ for (j = stack.length - 1; j >= 0; j--) {
+ let item = stack[j];
+ if (stack[j].level < thisLevel) {
+ break;
+ }
+ if (item.single === isSingle && stack[j].level === thisLevel) {
+ item = stack[j];
+ let openQuote;
+ let closeQuote;
+ if (isSingle) {
+ openQuote = state.md.options.quotes[2];
+ closeQuote = state.md.options.quotes[3];
+ } else {
+ openQuote = state.md.options.quotes[0];
+ closeQuote = state.md.options.quotes[1];
+ }
+
+ // replace token.content *before* tokens[item.token].content,
+ // because, if they are pointing at the same token, replaceAt
+ // could mess up indices when quote length != 1
+ token.content = replaceAt(token.content, t.index, closeQuote);
+ tokens[item.token].content = replaceAt(tokens[item.token].content, item.pos, openQuote);
+ pos += closeQuote.length - 1;
+ if (item.token === i) {
+ pos += openQuote.length - 1;
+ }
+ text = token.content;
+ max = text.length;
+ stack.length = j;
+ continue OUTER;
+ }
+ }
+ }
+ if (canOpen) {
+ stack.push({
+ token: i,
+ pos: t.index,
+ single: isSingle,
+ level: thisLevel
+ });
+ } else if (canClose && isSingle) {
+ token.content = replaceAt(token.content, t.index, APOSTROPHE);
+ }
+ }
+ }
+}
+function smartquotes(state) {
+ /* eslint max-depth:0 */
+ if (!state.md.options.typographer) {
+ return;
+ }
+ for (let blkIdx = state.tokens.length - 1; blkIdx >= 0; blkIdx--) {
+ if (state.tokens[blkIdx].type !== 'inline' || !QUOTE_TEST_RE.test(state.tokens[blkIdx].content)) {
+ continue;
+ }
+ process_inlines(state.tokens[blkIdx].children, state);
+ }
+}
+
+// Join raw text tokens with the rest of the text
+//
+// This is set as a separate rule to provide an opportunity for plugins
+// to run text replacements after text join, but before escape join.
+//
+// For example, `\:)` shouldn't be replaced with an emoji.
+//
+
+function text_join(state) {
+ let curr, last;
+ const blockTokens = state.tokens;
+ const l = blockTokens.length;
+ for (let j = 0; j < l; j++) {
+ if (blockTokens[j].type !== 'inline') continue;
+ const tokens = blockTokens[j].children;
+ const max = tokens.length;
+ for (curr = 0; curr < max; curr++) {
+ if (tokens[curr].type === 'text_special') {
+ tokens[curr].type = 'text';
+ }
+ }
+ for (curr = last = 0; curr < max; curr++) {
+ if (tokens[curr].type === 'text' && curr + 1 < max && tokens[curr + 1].type === 'text') {
+ // collapse two adjacent text nodes
+ tokens[curr + 1].content = tokens[curr].content + tokens[curr + 1].content;
+ } else {
+ if (curr !== last) {
+ tokens[last] = tokens[curr];
+ }
+ last++;
+ }
+ }
+ if (curr !== last) {
+ tokens.length = last;
+ }
+ }
+}
+
+/** internal
+ * class Core
+ *
+ * Top-level rules executor. Glues block/inline parsers and does intermediate
+ * transformations.
+ **/
+
+const _rules$2 = [['normalize', normalize], ['block', block], ['inline', inline], ['linkify', linkify$1], ['replacements', replace], ['smartquotes', smartquotes],
+// `text_join` finds `text_special` tokens (for escape sequences)
+// and joins them with the rest of the text
+['text_join', text_join]];
+
+/**
+ * new Core()
+ **/
+function Core() {
+ /**
+ * Core#ruler -> Ruler
+ *
+ * [[Ruler]] instance. Keep configuration of core rules.
+ **/
+ this.ruler = new Ruler();
+ for (let i = 0; i < _rules$2.length; i++) {
+ this.ruler.push(_rules$2[i][0], _rules$2[i][1]);
+ }
+}
+
+/**
+ * Core.process(state)
+ *
+ * Executes core chain rules.
+ **/
+Core.prototype.process = function (state) {
+ const rules = this.ruler.getRules('');
+ for (let i = 0, l = rules.length; i < l; i++) {
+ rules[i](state);
+ }
+};
+Core.prototype.State = StateCore;
+
+// Parser state class
+
+function StateBlock(src, md, env, tokens) {
+ this.src = src;
+
+ // link to parser instance
+ this.md = md;
+ this.env = env;
+
+ //
+ // Internal state vartiables
+ //
+
+ this.tokens = tokens;
+ this.bMarks = []; // line begin offsets for fast jumps
+ this.eMarks = []; // line end offsets for fast jumps
+ this.tShift = []; // offsets of the first non-space characters (tabs not expanded)
+ this.sCount = []; // indents for each line (tabs expanded)
+
+ // An amount of virtual spaces (tabs expanded) between beginning
+ // of each line (bMarks) and real beginning of that line.
+ //
+ // It exists only as a hack because blockquotes override bMarks
+ // losing information in the process.
+ //
+ // It's used only when expanding tabs, you can think about it as
+ // an initial tab length, e.g. bsCount=21 applied to string `\t123`
+ // means first tab should be expanded to 4-21%4 === 3 spaces.
+ //
+ this.bsCount = [];
+
+ // block parser variables
+
+ // required block content indent (for example, if we are
+ // inside a list, it would be positioned after list marker)
+ this.blkIndent = 0;
+ this.line = 0; // line index in src
+ this.lineMax = 0; // lines count
+ this.tight = false; // loose/tight mode for lists
+ this.ddIndent = -1; // indent of the current dd block (-1 if there isn't any)
+ this.listIndent = -1; // indent of the current list block (-1 if there isn't any)
+
+ // can be 'blockquote', 'list', 'root', 'paragraph' or 'reference'
+ // used in lists to determine if they interrupt a paragraph
+ this.parentType = 'root';
+ this.level = 0;
+
+ // Create caches
+ // Generate markers.
+ const s = this.src;
+ for (let start = 0, pos = 0, indent = 0, offset = 0, len = s.length, indent_found = false; pos < len; pos++) {
+ const ch = s.charCodeAt(pos);
+ if (!indent_found) {
+ if (isSpace(ch)) {
+ indent++;
+ if (ch === 0x09) {
+ offset += 4 - offset % 4;
+ } else {
+ offset++;
+ }
+ continue;
+ } else {
+ indent_found = true;
+ }
+ }
+ if (ch === 0x0A || pos === len - 1) {
+ if (ch !== 0x0A) {
+ pos++;
+ }
+ this.bMarks.push(start);
+ this.eMarks.push(pos);
+ this.tShift.push(indent);
+ this.sCount.push(offset);
+ this.bsCount.push(0);
+ indent_found = false;
+ indent = 0;
+ offset = 0;
+ start = pos + 1;
+ }
+ }
+
+ // Push fake entry to simplify cache bounds checks
+ this.bMarks.push(s.length);
+ this.eMarks.push(s.length);
+ this.tShift.push(0);
+ this.sCount.push(0);
+ this.bsCount.push(0);
+ this.lineMax = this.bMarks.length - 1; // don't count last fake line
+}
+
+// Push new token to "stream".
+//
+StateBlock.prototype.push = function (type, tag, nesting) {
+ const token = new Token(type, tag, nesting);
+ token.block = true;
+ if (nesting < 0) this.level--; // closing tag
+ token.level = this.level;
+ if (nesting > 0) this.level++; // opening tag
+
+ this.tokens.push(token);
+ return token;
+};
+StateBlock.prototype.isEmpty = function isEmpty(line) {
+ return this.bMarks[line] + this.tShift[line] >= this.eMarks[line];
+};
+StateBlock.prototype.skipEmptyLines = function skipEmptyLines(from) {
+ for (let max = this.lineMax; from < max; from++) {
+ if (this.bMarks[from] + this.tShift[from] < this.eMarks[from]) {
+ break;
+ }
+ }
+ return from;
+};
+
+// Skip spaces from given position.
+StateBlock.prototype.skipSpaces = function skipSpaces(pos) {
+ for (let max = this.src.length; pos < max; pos++) {
+ const ch = this.src.charCodeAt(pos);
+ if (!isSpace(ch)) {
+ break;
+ }
+ }
+ return pos;
+};
+
+// Skip spaces from given position in reverse.
+StateBlock.prototype.skipSpacesBack = function skipSpacesBack(pos, min) {
+ if (pos <= min) {
+ return pos;
+ }
+ while (pos > min) {
+ if (!isSpace(this.src.charCodeAt(--pos))) {
+ return pos + 1;
+ }
+ }
+ return pos;
+};
+
+// Skip char codes from given position
+StateBlock.prototype.skipChars = function skipChars(pos, code) {
+ for (let max = this.src.length; pos < max; pos++) {
+ if (this.src.charCodeAt(pos) !== code) {
+ break;
+ }
+ }
+ return pos;
+};
+
+// Skip char codes reverse from given position - 1
+StateBlock.prototype.skipCharsBack = function skipCharsBack(pos, code, min) {
+ if (pos <= min) {
+ return pos;
+ }
+ while (pos > min) {
+ if (code !== this.src.charCodeAt(--pos)) {
+ return pos + 1;
+ }
+ }
+ return pos;
+};
+
+// cut lines range from source.
+StateBlock.prototype.getLines = function getLines(begin, end, indent, keepLastLF) {
+ if (begin >= end) {
+ return '';
+ }
+ const queue = new Array(end - begin);
+ for (let i = 0, line = begin; line < end; line++, i++) {
+ let lineIndent = 0;
+ const lineStart = this.bMarks[line];
+ let first = lineStart;
+ let last;
+ if (line + 1 < end || keepLastLF) {
+ // No need for bounds check because we have fake entry on tail.
+ last = this.eMarks[line] + 1;
+ } else {
+ last = this.eMarks[line];
+ }
+ while (first < last && lineIndent < indent) {
+ const ch = this.src.charCodeAt(first);
+ if (isSpace(ch)) {
+ if (ch === 0x09) {
+ lineIndent += 4 - (lineIndent + this.bsCount[line]) % 4;
+ } else {
+ lineIndent++;
+ }
+ } else if (first - lineStart < this.tShift[line]) {
+ // patched tShift masked characters to look like spaces (blockquotes, list markers)
+ lineIndent++;
+ } else {
+ break;
+ }
+ first++;
+ }
+ if (lineIndent > indent) {
+ // partially expanding tabs in code blocks, e.g '\t\tfoobar'
+ // with indent=2 becomes ' \tfoobar'
+ queue[i] = new Array(lineIndent - indent + 1).join(' ') + this.src.slice(first, last);
+ } else {
+ queue[i] = this.src.slice(first, last);
+ }
+ }
+ return queue.join('');
+};
+
+// re-export Token class to use in block rules
+StateBlock.prototype.Token = Token;
+
+// GFM table, https://github.github.com/gfm/#tables-extension-
+
+
+// Limit the amount of empty autocompleted cells in a table,
+// see https://github.com/markdown-it/markdown-it/issues/1000,
+//
+// Both pulldown-cmark and commonmark-hs limit the number of cells this way to ~200k.
+// We set it to 65k, which can expand user input by a factor of x370
+// (256x256 square is 1.8kB expanded into 650kB).
+const MAX_AUTOCOMPLETED_CELLS = 0x10000;
+function getLine(state, line) {
+ const pos = state.bMarks[line] + state.tShift[line];
+ const max = state.eMarks[line];
+ return state.src.slice(pos, max);
+}
+function escapedSplit(str) {
+ const result = [];
+ const max = str.length;
+ let pos = 0;
+ let ch = str.charCodeAt(pos);
+ let isEscaped = false;
+ let lastPos = 0;
+ let current = '';
+ while (pos < max) {
+ if (ch === 0x7c /* | */) {
+ if (!isEscaped) {
+ // pipe separating cells, '|'
+ result.push(current + str.substring(lastPos, pos));
+ current = '';
+ lastPos = pos + 1;
+ } else {
+ // escaped pipe, '\|'
+ current += str.substring(lastPos, pos - 1);
+ lastPos = pos;
+ }
+ }
+ isEscaped = ch === 0x5c /* \ */;
+ pos++;
+ ch = str.charCodeAt(pos);
+ }
+ result.push(current + str.substring(lastPos));
+ return result;
+}
+function table(state, startLine, endLine, silent) {
+ // should have at least two lines
+ if (startLine + 2 > endLine) {
+ return false;
+ }
+ let nextLine = startLine + 1;
+ if (state.sCount[nextLine] < state.blkIndent) {
+ return false;
+ }
+
+ // if it's indented more than 3 spaces, it should be a code block
+ if (state.sCount[nextLine] - state.blkIndent >= 4) {
+ return false;
+ }
+
+ // first character of the second line should be '|', '-', ':',
+ // and no other characters are allowed but spaces;
+ // basically, this is the equivalent of /^[-:|][-:|\s]*$/ regexp
+
+ let pos = state.bMarks[nextLine] + state.tShift[nextLine];
+ if (pos >= state.eMarks[nextLine]) {
+ return false;
+ }
+ const firstCh = state.src.charCodeAt(pos++);
+ if (firstCh !== 0x7C /* | */ && firstCh !== 0x2D /* - */ && firstCh !== 0x3A /* : */) {
+ return false;
+ }
+ if (pos >= state.eMarks[nextLine]) {
+ return false;
+ }
+ const secondCh = state.src.charCodeAt(pos++);
+ if (secondCh !== 0x7C /* | */ && secondCh !== 0x2D /* - */ && secondCh !== 0x3A /* : */ && !isSpace(secondCh)) {
+ return false;
+ }
+
+ // if first character is '-', then second character must not be a space
+ // (due to parsing ambiguity with list)
+ if (firstCh === 0x2D /* - */ && isSpace(secondCh)) {
+ return false;
+ }
+ while (pos < state.eMarks[nextLine]) {
+ const ch = state.src.charCodeAt(pos);
+ if (ch !== 0x7C /* | */ && ch !== 0x2D /* - */ && ch !== 0x3A /* : */ && !isSpace(ch)) {
+ return false;
+ }
+ pos++;
+ }
+ let lineText = getLine(state, startLine + 1);
+ let columns = lineText.split('|');
+ const aligns = [];
+ for (let i = 0; i < columns.length; i++) {
+ const t = columns[i].trim();
+ if (!t) {
+ // allow empty columns before and after table, but not in between columns;
+ // e.g. allow ` |---| `, disallow ` ---||--- `
+ if (i === 0 || i === columns.length - 1) {
+ continue;
+ } else {
+ return false;
+ }
+ }
+ if (!/^:?-+:?$/.test(t)) {
+ return false;
+ }
+ if (t.charCodeAt(t.length - 1) === 0x3A /* : */) {
+ aligns.push(t.charCodeAt(0) === 0x3A /* : */ ? 'center' : 'right');
+ } else if (t.charCodeAt(0) === 0x3A /* : */) {
+ aligns.push('left');
+ } else {
+ aligns.push('');
+ }
+ }
+ lineText = getLine(state, startLine).trim();
+ if (lineText.indexOf('|') === -1) {
+ return false;
+ }
+ if (state.sCount[startLine] - state.blkIndent >= 4) {
+ return false;
+ }
+ columns = escapedSplit(lineText);
+ if (columns.length && columns[0] === '') columns.shift();
+ if (columns.length && columns[columns.length - 1] === '') columns.pop();
+
+ // header row will define an amount of columns in the entire table,
+ // and align row should be exactly the same (the rest of the rows can differ)
+ const columnCount = columns.length;
+ if (columnCount === 0 || columnCount !== aligns.length) {
+ return false;
+ }
+ if (silent) {
+ return true;
+ }
+ const oldParentType = state.parentType;
+ state.parentType = 'table';
+
+ // use 'blockquote' lists for termination because it's
+ // the most similar to tables
+ const terminatorRules = state.md.block.ruler.getRules('blockquote');
+ const token_to = state.push('table_open', 'table', 1);
+ const tableLines = [startLine, 0];
+ token_to.map = tableLines;
+ const token_tho = state.push('thead_open', 'thead', 1);
+ token_tho.map = [startLine, startLine + 1];
+ const token_htro = state.push('tr_open', 'tr', 1);
+ token_htro.map = [startLine, startLine + 1];
+ for (let i = 0; i < columns.length; i++) {
+ const token_ho = state.push('th_open', 'th', 1);
+ if (aligns[i]) {
+ token_ho.attrs = [['style', 'text-align:' + aligns[i]]];
+ }
+ const token_il = state.push('inline', '', 0);
+ token_il.content = columns[i].trim();
+ token_il.children = [];
+ state.push('th_close', 'th', -1);
+ }
+ state.push('tr_close', 'tr', -1);
+ state.push('thead_close', 'thead', -1);
+ let tbodyLines;
+ let autocompletedCells = 0;
+ for (nextLine = startLine + 2; nextLine < endLine; nextLine++) {
+ if (state.sCount[nextLine] < state.blkIndent) {
+ break;
+ }
+ let terminate = false;
+ for (let i = 0, l = terminatorRules.length; i < l; i++) {
+ if (terminatorRules[i](state, nextLine, endLine, true)) {
+ terminate = true;
+ break;
+ }
+ }
+ if (terminate) {
+ break;
+ }
+ lineText = getLine(state, nextLine).trim();
+ if (!lineText) {
+ break;
+ }
+ if (state.sCount[nextLine] - state.blkIndent >= 4) {
+ break;
+ }
+ columns = escapedSplit(lineText);
+ if (columns.length && columns[0] === '') columns.shift();
+ if (columns.length && columns[columns.length - 1] === '') columns.pop();
+
+ // note: autocomplete count can be negative if user specifies more columns than header,
+ // but that does not affect intended use (which is limiting expansion)
+ autocompletedCells += columnCount - columns.length;
+ if (autocompletedCells > MAX_AUTOCOMPLETED_CELLS) {
+ break;
+ }
+ if (nextLine === startLine + 2) {
+ const token_tbo = state.push('tbody_open', 'tbody', 1);
+ token_tbo.map = tbodyLines = [startLine + 2, 0];
+ }
+ const token_tro = state.push('tr_open', 'tr', 1);
+ token_tro.map = [nextLine, nextLine + 1];
+ for (let i = 0; i < columnCount; i++) {
+ const token_tdo = state.push('td_open', 'td', 1);
+ if (aligns[i]) {
+ token_tdo.attrs = [['style', 'text-align:' + aligns[i]]];
+ }
+ const token_il = state.push('inline', '', 0);
+ token_il.content = columns[i] ? columns[i].trim() : '';
+ token_il.children = [];
+ state.push('td_close', 'td', -1);
+ }
+ state.push('tr_close', 'tr', -1);
+ }
+ if (tbodyLines) {
+ state.push('tbody_close', 'tbody', -1);
+ tbodyLines[1] = nextLine;
+ }
+ state.push('table_close', 'table', -1);
+ tableLines[1] = nextLine;
+ state.parentType = oldParentType;
+ state.line = nextLine;
+ return true;
+}
+
+// Code block (4 spaces padded)
+
+function code(state, startLine, endLine /*, silent */) {
+ if (state.sCount[startLine] - state.blkIndent < 4) {
+ return false;
+ }
+ let nextLine = startLine + 1;
+ let last = nextLine;
+ while (nextLine < endLine) {
+ if (state.isEmpty(nextLine)) {
+ nextLine++;
+ continue;
+ }
+ if (state.sCount[nextLine] - state.blkIndent >= 4) {
+ nextLine++;
+ last = nextLine;
+ continue;
+ }
+ break;
+ }
+ state.line = last;
+ const token = state.push('code_block', 'code', 0);
+ token.content = state.getLines(startLine, last, 4 + state.blkIndent, false) + '\n';
+ token.map = [startLine, state.line];
+ return true;
+}
+
+// fences (``` lang, ~~~ lang)
+
+function fence(state, startLine, endLine, silent) {
+ let pos = state.bMarks[startLine] + state.tShift[startLine];
+ let max = state.eMarks[startLine];
+
+ // if it's indented more than 3 spaces, it should be a code block
+ if (state.sCount[startLine] - state.blkIndent >= 4) {
+ return false;
+ }
+ if (pos + 3 > max) {
+ return false;
+ }
+ const marker = state.src.charCodeAt(pos);
+ if (marker !== 0x7E /* ~ */ && marker !== 0x60 /* ` */) {
+ return false;
+ }
+
+ // scan marker length
+ let mem = pos;
+ pos = state.skipChars(pos, marker);
+ let len = pos - mem;
+ if (len < 3) {
+ return false;
+ }
+ const markup = state.src.slice(mem, pos);
+ const params = state.src.slice(pos, max);
+ if (marker === 0x60 /* ` */) {
+ if (params.indexOf(String.fromCharCode(marker)) >= 0) {
+ return false;
+ }
+ }
+
+ // Since start is found, we can report success here in validation mode
+ if (silent) {
+ return true;
+ }
+
+ // search end of block
+ let nextLine = startLine;
+ let haveEndMarker = false;
+ for (;;) {
+ nextLine++;
+ if (nextLine >= endLine) {
+ // unclosed block should be autoclosed by end of document.
+ // also block seems to be autoclosed by end of parent
+ break;
+ }
+ pos = mem = state.bMarks[nextLine] + state.tShift[nextLine];
+ max = state.eMarks[nextLine];
+ if (pos < max && state.sCount[nextLine] < state.blkIndent) {
+ // non-empty line with negative indent should stop the list:
+ // - ```
+ // test
+ break;
+ }
+ if (state.src.charCodeAt(pos) !== marker) {
+ continue;
+ }
+ if (state.sCount[nextLine] - state.blkIndent >= 4) {
+ // closing fence should be indented less than 4 spaces
+ continue;
+ }
+ pos = state.skipChars(pos, marker);
+
+ // closing code fence must be at least as long as the opening one
+ if (pos - mem < len) {
+ continue;
+ }
+
+ // make sure tail has spaces only
+ pos = state.skipSpaces(pos);
+ if (pos < max) {
+ continue;
+ }
+ haveEndMarker = true;
+ // found!
+ break;
+ }
+
+ // If a fence has heading spaces, they should be removed from its inner block
+ len = state.sCount[startLine];
+ state.line = nextLine + (haveEndMarker ? 1 : 0);
+ const token = state.push('fence', 'code', 0);
+ token.info = params;
+ token.content = state.getLines(startLine + 1, nextLine, len, true);
+ token.markup = markup;
+ token.map = [startLine, state.line];
+ return true;
+}
+
+// Block quotes
+
+function blockquote(state, startLine, endLine, silent) {
+ let pos = state.bMarks[startLine] + state.tShift[startLine];
+ let max = state.eMarks[startLine];
+ const oldLineMax = state.lineMax;
+
+ // if it's indented more than 3 spaces, it should be a code block
+ if (state.sCount[startLine] - state.blkIndent >= 4) {
+ return false;
+ }
+
+ // check the block quote marker
+ if (state.src.charCodeAt(pos) !== 0x3E /* > */) {
+ return false;
+ }
+
+ // we know that it's going to be a valid blockquote,
+ // so no point trying to find the end of it in silent mode
+ if (silent) {
+ return true;
+ }
+ const oldBMarks = [];
+ const oldBSCount = [];
+ const oldSCount = [];
+ const oldTShift = [];
+ const terminatorRules = state.md.block.ruler.getRules('blockquote');
+ const oldParentType = state.parentType;
+ state.parentType = 'blockquote';
+ let lastLineEmpty = false;
+ let nextLine;
+
+ // Search the end of the block
+ //
+ // Block ends with either:
+ // 1. an empty line outside:
+ // ```
+ // > test
+ //
+ // ```
+ // 2. an empty line inside:
+ // ```
+ // >
+ // test
+ // ```
+ // 3. another tag:
+ // ```
+ // > test
+ // - - -
+ // ```
+ for (nextLine = startLine; nextLine < endLine; nextLine++) {
+ // check if it's outdented, i.e. it's inside list item and indented
+ // less than said list item:
+ //
+ // ```
+ // 1. anything
+ // > current blockquote
+ // 2. checking this line
+ // ```
+ const isOutdented = state.sCount[nextLine] < state.blkIndent;
+ pos = state.bMarks[nextLine] + state.tShift[nextLine];
+ max = state.eMarks[nextLine];
+ if (pos >= max) {
+ // Case 1: line is not inside the blockquote, and this line is empty.
+ break;
+ }
+ if (state.src.charCodeAt(pos++) === 0x3E /* > */ && !isOutdented) {
+ // This line is inside the blockquote.
+
+ // set offset past spaces and ">"
+ let initial = state.sCount[nextLine] + 1;
+ let spaceAfterMarker;
+ let adjustTab;
+
+ // skip one optional space after '>'
+ if (state.src.charCodeAt(pos) === 0x20 /* space */) {
+ // ' > test '
+ // ^ -- position start of line here:
+ pos++;
+ initial++;
+ adjustTab = false;
+ spaceAfterMarker = true;
+ } else if (state.src.charCodeAt(pos) === 0x09 /* tab */) {
+ spaceAfterMarker = true;
+ if ((state.bsCount[nextLine] + initial) % 4 === 3) {
+ // ' >\t test '
+ // ^ -- position start of line here (tab has width===1)
+ pos++;
+ initial++;
+ adjustTab = false;
+ } else {
+ // ' >\t test '
+ // ^ -- position start of line here + shift bsCount slightly
+ // to make extra space appear
+ adjustTab = true;
+ }
+ } else {
+ spaceAfterMarker = false;
+ }
+ let offset = initial;
+ oldBMarks.push(state.bMarks[nextLine]);
+ state.bMarks[nextLine] = pos;
+ while (pos < max) {
+ const ch = state.src.charCodeAt(pos);
+ if (isSpace(ch)) {
+ if (ch === 0x09) {
+ offset += 4 - (offset + state.bsCount[nextLine] + (adjustTab ? 1 : 0)) % 4;
+ } else {
+ offset++;
+ }
+ } else {
+ break;
+ }
+ pos++;
+ }
+ lastLineEmpty = pos >= max;
+ oldBSCount.push(state.bsCount[nextLine]);
+ state.bsCount[nextLine] = state.sCount[nextLine] + 1 + (spaceAfterMarker ? 1 : 0);
+ oldSCount.push(state.sCount[nextLine]);
+ state.sCount[nextLine] = offset - initial;
+ oldTShift.push(state.tShift[nextLine]);
+ state.tShift[nextLine] = pos - state.bMarks[nextLine];
+ continue;
+ }
+
+ // Case 2: line is not inside the blockquote, and the last line was empty.
+ if (lastLineEmpty) {
+ break;
+ }
+
+ // Case 3: another tag found.
+ let terminate = false;
+ for (let i = 0, l = terminatorRules.length; i < l; i++) {
+ if (terminatorRules[i](state, nextLine, endLine, true)) {
+ terminate = true;
+ break;
+ }
+ }
+ if (terminate) {
+ // Quirk to enforce "hard termination mode" for paragraphs;
+ // normally if you call `tokenize(state, startLine, nextLine)`,
+ // paragraphs will look below nextLine for paragraph continuation,
+ // but if blockquote is terminated by another tag, they shouldn't
+ state.lineMax = nextLine;
+ if (state.blkIndent !== 0) {
+ // state.blkIndent was non-zero, we now set it to zero,
+ // so we need to re-calculate all offsets to appear as
+ // if indent wasn't changed
+ oldBMarks.push(state.bMarks[nextLine]);
+ oldBSCount.push(state.bsCount[nextLine]);
+ oldTShift.push(state.tShift[nextLine]);
+ oldSCount.push(state.sCount[nextLine]);
+ state.sCount[nextLine] -= state.blkIndent;
+ }
+ break;
+ }
+ oldBMarks.push(state.bMarks[nextLine]);
+ oldBSCount.push(state.bsCount[nextLine]);
+ oldTShift.push(state.tShift[nextLine]);
+ oldSCount.push(state.sCount[nextLine]);
+
+ // A negative indentation means that this is a paragraph continuation
+ //
+ state.sCount[nextLine] = -1;
+ }
+ const oldIndent = state.blkIndent;
+ state.blkIndent = 0;
+ const token_o = state.push('blockquote_open', 'blockquote', 1);
+ token_o.markup = '>';
+ const lines = [startLine, 0];
+ token_o.map = lines;
+ state.md.block.tokenize(state, startLine, nextLine);
+ const token_c = state.push('blockquote_close', 'blockquote', -1);
+ token_c.markup = '>';
+ state.lineMax = oldLineMax;
+ state.parentType = oldParentType;
+ lines[1] = state.line;
+
+ // Restore original tShift; this might not be necessary since the parser
+ // has already been here, but just to make sure we can do that.
+ for (let i = 0; i < oldTShift.length; i++) {
+ state.bMarks[i + startLine] = oldBMarks[i];
+ state.tShift[i + startLine] = oldTShift[i];
+ state.sCount[i + startLine] = oldSCount[i];
+ state.bsCount[i + startLine] = oldBSCount[i];
+ }
+ state.blkIndent = oldIndent;
+ return true;
+}
+
+// Horizontal rule
+
+function hr(state, startLine, endLine, silent) {
+ const max = state.eMarks[startLine];
+ // if it's indented more than 3 spaces, it should be a code block
+ if (state.sCount[startLine] - state.blkIndent >= 4) {
+ return false;
+ }
+ let pos = state.bMarks[startLine] + state.tShift[startLine];
+ const marker = state.src.charCodeAt(pos++);
+
+ // Check hr marker
+ if (marker !== 0x2A /* * */ && marker !== 0x2D /* - */ && marker !== 0x5F /* _ */) {
+ return false;
+ }
+
+ // markers can be mixed with spaces, but there should be at least 3 of them
+
+ let cnt = 1;
+ while (pos < max) {
+ const ch = state.src.charCodeAt(pos++);
+ if (ch !== marker && !isSpace(ch)) {
+ return false;
+ }
+ if (ch === marker) {
+ cnt++;
+ }
+ }
+ if (cnt < 3) {
+ return false;
+ }
+ if (silent) {
+ return true;
+ }
+ state.line = startLine + 1;
+ const token = state.push('hr', 'hr', 0);
+ token.map = [startLine, state.line];
+ token.markup = Array(cnt + 1).join(String.fromCharCode(marker));
+ return true;
+}
+
+// Lists
+
+
+// Search `[-+*][\n ]`, returns next pos after marker on success
+// or -1 on fail.
+function skipBulletListMarker(state, startLine) {
+ const max = state.eMarks[startLine];
+ let pos = state.bMarks[startLine] + state.tShift[startLine];
+ const marker = state.src.charCodeAt(pos++);
+ // Check bullet
+ if (marker !== 0x2A /* * */ && marker !== 0x2D /* - */ && marker !== 0x2B /* + */) {
+ return -1;
+ }
+ if (pos < max) {
+ const ch = state.src.charCodeAt(pos);
+ if (!isSpace(ch)) {
+ // " -test " - is not a list item
+ return -1;
+ }
+ }
+ return pos;
+}
+
+// Search `\d+[.)][\n ]`, returns next pos after marker on success
+// or -1 on fail.
+function skipOrderedListMarker(state, startLine) {
+ const start = state.bMarks[startLine] + state.tShift[startLine];
+ const max = state.eMarks[startLine];
+ let pos = start;
+
+ // List marker should have at least 2 chars (digit + dot)
+ if (pos + 1 >= max) {
+ return -1;
+ }
+ let ch = state.src.charCodeAt(pos++);
+ if (ch < 0x30 /* 0 */ || ch > 0x39 /* 9 */) {
+ return -1;
+ }
+ for (;;) {
+ // EOL -> fail
+ if (pos >= max) {
+ return -1;
+ }
+ ch = state.src.charCodeAt(pos++);
+ if (ch >= 0x30 /* 0 */ && ch <= 0x39 /* 9 */) {
+ // List marker should have no more than 9 digits
+ // (prevents integer overflow in browsers)
+ if (pos - start >= 10) {
+ return -1;
+ }
+ continue;
+ }
+
+ // found valid marker
+ if (ch === 0x29 /* ) */ || ch === 0x2e /* . */) {
+ break;
+ }
+ return -1;
+ }
+ if (pos < max) {
+ ch = state.src.charCodeAt(pos);
+ if (!isSpace(ch)) {
+ // " 1.test " - is not a list item
+ return -1;
+ }
+ }
+ return pos;
+}
+function markTightParagraphs(state, idx) {
+ const level = state.level + 2;
+ for (let i = idx + 2, l = state.tokens.length - 2; i < l; i++) {
+ if (state.tokens[i].level === level && state.tokens[i].type === 'paragraph_open') {
+ state.tokens[i + 2].hidden = true;
+ state.tokens[i].hidden = true;
+ i += 2;
+ }
+ }
+}
+function list(state, startLine, endLine, silent) {
+ let max, pos, start, token;
+ let nextLine = startLine;
+ let tight = true;
+
+ // if it's indented more than 3 spaces, it should be a code block
+ if (state.sCount[nextLine] - state.blkIndent >= 4) {
+ return false;
+ }
+
+ // Special case:
+ // - item 1
+ // - item 2
+ // - item 3
+ // - item 4
+ // - this one is a paragraph continuation
+ if (state.listIndent >= 0 && state.sCount[nextLine] - state.listIndent >= 4 && state.sCount[nextLine] < state.blkIndent) {
+ return false;
+ }
+ let isTerminatingParagraph = false;
+
+ // limit conditions when list can interrupt
+ // a paragraph (validation mode only)
+ if (silent && state.parentType === 'paragraph') {
+ // Next list item should still terminate previous list item;
+ //
+ // This code can fail if plugins use blkIndent as well as lists,
+ // but I hope the spec gets fixed long before that happens.
+ //
+ if (state.sCount[nextLine] >= state.blkIndent) {
+ isTerminatingParagraph = true;
+ }
+ }
+
+ // Detect list type and position after marker
+ let isOrdered;
+ let markerValue;
+ let posAfterMarker;
+ if ((posAfterMarker = skipOrderedListMarker(state, nextLine)) >= 0) {
+ isOrdered = true;
+ start = state.bMarks[nextLine] + state.tShift[nextLine];
+ markerValue = Number(state.src.slice(start, posAfterMarker - 1));
+
+ // If we're starting a new ordered list right after
+ // a paragraph, it should start with 1.
+ if (isTerminatingParagraph && markerValue !== 1) return false;
+ } else if ((posAfterMarker = skipBulletListMarker(state, nextLine)) >= 0) {
+ isOrdered = false;
+ } else {
+ return false;
+ }
+
+ // If we're starting a new unordered list right after
+ // a paragraph, first line should not be empty.
+ if (isTerminatingParagraph) {
+ if (state.skipSpaces(posAfterMarker) >= state.eMarks[nextLine]) return false;
+ }
+
+ // For validation mode we can terminate immediately
+ if (silent) {
+ return true;
+ }
+
+ // We should terminate list on style change. Remember first one to compare.
+ const markerCharCode = state.src.charCodeAt(posAfterMarker - 1);
+
+ // Start list
+ const listTokIdx = state.tokens.length;
+ if (isOrdered) {
+ token = state.push('ordered_list_open', 'ol', 1);
+ if (markerValue !== 1) {
+ token.attrs = [['start', markerValue]];
+ }
+ } else {
+ token = state.push('bullet_list_open', 'ul', 1);
+ }
+ const listLines = [nextLine, 0];
+ token.map = listLines;
+ token.markup = String.fromCharCode(markerCharCode);
+
+ //
+ // Iterate list items
+ //
+
+ let prevEmptyEnd = false;
+ const terminatorRules = state.md.block.ruler.getRules('list');
+ const oldParentType = state.parentType;
+ state.parentType = 'list';
+ while (nextLine < endLine) {
+ pos = posAfterMarker;
+ max = state.eMarks[nextLine];
+ const initial = state.sCount[nextLine] + posAfterMarker - (state.bMarks[nextLine] + state.tShift[nextLine]);
+ let offset = initial;
+ while (pos < max) {
+ const ch = state.src.charCodeAt(pos);
+ if (ch === 0x09) {
+ offset += 4 - (offset + state.bsCount[nextLine]) % 4;
+ } else if (ch === 0x20) {
+ offset++;
+ } else {
+ break;
+ }
+ pos++;
+ }
+ const contentStart = pos;
+ let indentAfterMarker;
+ if (contentStart >= max) {
+ // trimming space in "- \n 3" case, indent is 1 here
+ indentAfterMarker = 1;
+ } else {
+ indentAfterMarker = offset - initial;
+ }
+
+ // If we have more than 4 spaces, the indent is 1
+ // (the rest is just indented code block)
+ if (indentAfterMarker > 4) {
+ indentAfterMarker = 1;
+ }
+
+ // " - test"
+ // ^^^^^ - calculating total length of this thing
+ const indent = initial + indentAfterMarker;
+
+ // Run subparser & write tokens
+ token = state.push('list_item_open', 'li', 1);
+ token.markup = String.fromCharCode(markerCharCode);
+ const itemLines = [nextLine, 0];
+ token.map = itemLines;
+ if (isOrdered) {
+ token.info = state.src.slice(start, posAfterMarker - 1);
+ }
+
+ // change current state, then restore it after parser subcall
+ const oldTight = state.tight;
+ const oldTShift = state.tShift[nextLine];
+ const oldSCount = state.sCount[nextLine];
+
+ // - example list
+ // ^ listIndent position will be here
+ // ^ blkIndent position will be here
+ //
+ const oldListIndent = state.listIndent;
+ state.listIndent = state.blkIndent;
+ state.blkIndent = indent;
+ state.tight = true;
+ state.tShift[nextLine] = contentStart - state.bMarks[nextLine];
+ state.sCount[nextLine] = offset;
+ if (contentStart >= max && state.isEmpty(nextLine + 1)) {
+ // workaround for this case
+ // (list item is empty, list terminates before "foo"):
+ // ~~~~~~~~
+ // -
+ //
+ // foo
+ // ~~~~~~~~
+ state.line = Math.min(state.line + 2, endLine);
+ } else {
+ state.md.block.tokenize(state, nextLine, endLine, true);
+ }
+
+ // If any of list item is tight, mark list as tight
+ if (!state.tight || prevEmptyEnd) {
+ tight = false;
+ }
+ // Item become loose if finish with empty line,
+ // but we should filter last element, because it means list finish
+ prevEmptyEnd = state.line - nextLine > 1 && state.isEmpty(state.line - 1);
+ state.blkIndent = state.listIndent;
+ state.listIndent = oldListIndent;
+ state.tShift[nextLine] = oldTShift;
+ state.sCount[nextLine] = oldSCount;
+ state.tight = oldTight;
+ token = state.push('list_item_close', 'li', -1);
+ token.markup = String.fromCharCode(markerCharCode);
+ nextLine = state.line;
+ itemLines[1] = nextLine;
+ if (nextLine >= endLine) {
+ break;
+ }
+
+ //
+ // Try to check if list is terminated or continued.
+ //
+ if (state.sCount[nextLine] < state.blkIndent) {
+ break;
+ }
+
+ // if it's indented more than 3 spaces, it should be a code block
+ if (state.sCount[nextLine] - state.blkIndent >= 4) {
+ break;
+ }
+
+ // fail if terminating block found
+ let terminate = false;
+ for (let i = 0, l = terminatorRules.length; i < l; i++) {
+ if (terminatorRules[i](state, nextLine, endLine, true)) {
+ terminate = true;
+ break;
+ }
+ }
+ if (terminate) {
+ break;
+ }
+
+ // fail if list has another type
+ if (isOrdered) {
+ posAfterMarker = skipOrderedListMarker(state, nextLine);
+ if (posAfterMarker < 0) {
+ break;
+ }
+ start = state.bMarks[nextLine] + state.tShift[nextLine];
+ } else {
+ posAfterMarker = skipBulletListMarker(state, nextLine);
+ if (posAfterMarker < 0) {
+ break;
+ }
+ }
+ if (markerCharCode !== state.src.charCodeAt(posAfterMarker - 1)) {
+ break;
+ }
+ }
+
+ // Finalize list
+ if (isOrdered) {
+ token = state.push('ordered_list_close', 'ol', -1);
+ } else {
+ token = state.push('bullet_list_close', 'ul', -1);
+ }
+ token.markup = String.fromCharCode(markerCharCode);
+ listLines[1] = nextLine;
+ state.line = nextLine;
+ state.parentType = oldParentType;
+
+ // mark paragraphs tight if needed
+ if (tight) {
+ markTightParagraphs(state, listTokIdx);
+ }
+ return true;
+}
+
+function reference(state, startLine, _endLine, silent) {
+ let pos = state.bMarks[startLine] + state.tShift[startLine];
+ let max = state.eMarks[startLine];
+ let nextLine = startLine + 1;
+
+ // if it's indented more than 3 spaces, it should be a code block
+ if (state.sCount[startLine] - state.blkIndent >= 4) {
+ return false;
+ }
+ if (state.src.charCodeAt(pos) !== 0x5B /* [ */) {
+ return false;
+ }
+ function getNextLine(nextLine) {
+ const endLine = state.lineMax;
+ if (nextLine >= endLine || state.isEmpty(nextLine)) {
+ // empty line or end of input
+ return null;
+ }
+ let isContinuation = false;
+
+ // this would be a code block normally, but after paragraph
+ // it's considered a lazy continuation regardless of what's there
+ if (state.sCount[nextLine] - state.blkIndent > 3) {
+ isContinuation = true;
+ }
+
+ // quirk for blockquotes, this line should already be checked by that rule
+ if (state.sCount[nextLine] < 0) {
+ isContinuation = true;
+ }
+ if (!isContinuation) {
+ const terminatorRules = state.md.block.ruler.getRules('reference');
+ const oldParentType = state.parentType;
+ state.parentType = 'reference';
+
+ // Some tags can terminate paragraph without empty line.
+ let terminate = false;
+ for (let i = 0, l = terminatorRules.length; i < l; i++) {
+ if (terminatorRules[i](state, nextLine, endLine, true)) {
+ terminate = true;
+ break;
+ }
+ }
+ state.parentType = oldParentType;
+ if (terminate) {
+ // terminated by another block
+ return null;
+ }
+ }
+ const pos = state.bMarks[nextLine] + state.tShift[nextLine];
+ const max = state.eMarks[nextLine];
+
+ // max + 1 explicitly includes the newline
+ return state.src.slice(pos, max + 1);
+ }
+ let str = state.src.slice(pos, max + 1);
+ max = str.length;
+ let labelEnd = -1;
+ for (pos = 1; pos < max; pos++) {
+ const ch = str.charCodeAt(pos);
+ if (ch === 0x5B /* [ */) {
+ return false;
+ } else if (ch === 0x5D /* ] */) {
+ labelEnd = pos;
+ break;
+ } else if (ch === 0x0A /* \n */) {
+ const lineContent = getNextLine(nextLine);
+ if (lineContent !== null) {
+ str += lineContent;
+ max = str.length;
+ nextLine++;
+ }
+ } else if (ch === 0x5C /* \ */) {
+ pos++;
+ if (pos < max && str.charCodeAt(pos) === 0x0A) {
+ const lineContent = getNextLine(nextLine);
+ if (lineContent !== null) {
+ str += lineContent;
+ max = str.length;
+ nextLine++;
+ }
+ }
+ }
+ }
+ if (labelEnd < 0 || str.charCodeAt(labelEnd + 1) !== 0x3A /* : */) {
+ return false;
+ }
+
+ // [label]: destination 'title'
+ // ^^^ skip optional whitespace here
+ for (pos = labelEnd + 2; pos < max; pos++) {
+ const ch = str.charCodeAt(pos);
+ if (ch === 0x0A) {
+ const lineContent = getNextLine(nextLine);
+ if (lineContent !== null) {
+ str += lineContent;
+ max = str.length;
+ nextLine++;
+ }
+ } else if (isSpace(ch)) ; else {
+ break;
+ }
+ }
+
+ // [label]: destination 'title'
+ // ^^^^^^^^^^^ parse this
+ const destRes = state.md.helpers.parseLinkDestination(str, pos, max);
+ if (!destRes.ok) {
+ return false;
+ }
+ const href = state.md.normalizeLink(destRes.str);
+ if (!state.md.validateLink(href)) {
+ return false;
+ }
+ pos = destRes.pos;
+
+ // save cursor state, we could require to rollback later
+ const destEndPos = pos;
+ const destEndLineNo = nextLine;
+
+ // [label]: destination 'title'
+ // ^^^ skipping those spaces
+ const start = pos;
+ for (; pos < max; pos++) {
+ const ch = str.charCodeAt(pos);
+ if (ch === 0x0A) {
+ const lineContent = getNextLine(nextLine);
+ if (lineContent !== null) {
+ str += lineContent;
+ max = str.length;
+ nextLine++;
+ }
+ } else if (isSpace(ch)) ; else {
+ break;
+ }
+ }
+
+ // [label]: destination 'title'
+ // ^^^^^^^ parse this
+ let titleRes = state.md.helpers.parseLinkTitle(str, pos, max);
+ while (titleRes.can_continue) {
+ const lineContent = getNextLine(nextLine);
+ if (lineContent === null) break;
+ str += lineContent;
+ pos = max;
+ max = str.length;
+ nextLine++;
+ titleRes = state.md.helpers.parseLinkTitle(str, pos, max, titleRes);
+ }
+ let title;
+ if (pos < max && start !== pos && titleRes.ok) {
+ title = titleRes.str;
+ pos = titleRes.pos;
+ } else {
+ title = '';
+ pos = destEndPos;
+ nextLine = destEndLineNo;
+ }
+
+ // skip trailing spaces until the rest of the line
+ while (pos < max) {
+ const ch = str.charCodeAt(pos);
+ if (!isSpace(ch)) {
+ break;
+ }
+ pos++;
+ }
+ if (pos < max && str.charCodeAt(pos) !== 0x0A) {
+ if (title) {
+ // garbage at the end of the line after title,
+ // but it could still be a valid reference if we roll back
+ title = '';
+ pos = destEndPos;
+ nextLine = destEndLineNo;
+ while (pos < max) {
+ const ch = str.charCodeAt(pos);
+ if (!isSpace(ch)) {
+ break;
+ }
+ pos++;
+ }
+ }
+ }
+ if (pos < max && str.charCodeAt(pos) !== 0x0A) {
+ // garbage at the end of the line
+ return false;
+ }
+ const label = normalizeReference(str.slice(1, labelEnd));
+ if (!label) {
+ // CommonMark 0.20 disallows empty labels
+ return false;
+ }
+
+ // Reference can not terminate anything. This check is for safety only.
+ /* istanbul ignore if */
+ if (silent) {
+ return true;
+ }
+ if (typeof state.env.references === 'undefined') {
+ state.env.references = {};
+ }
+ if (typeof state.env.references[label] === 'undefined') {
+ state.env.references[label] = {
+ title,
+ href
+ };
+ }
+ state.line = nextLine;
+ return true;
+}
+
+// List of valid html blocks names, according to commonmark spec
+// https://spec.commonmark.org/0.30/#html-blocks
+
+var block_names = ['address', 'article', 'aside', 'base', 'basefont', 'blockquote', 'body', 'caption', 'center', 'col', 'colgroup', 'dd', 'details', 'dialog', 'dir', 'div', 'dl', 'dt', 'fieldset', 'figcaption', 'figure', 'footer', 'form', 'frame', 'frameset', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'head', 'header', 'hr', 'html', 'iframe', 'legend', 'li', 'link', 'main', 'menu', 'menuitem', 'nav', 'noframes', 'ol', 'optgroup', 'option', 'p', 'param', 'search', 'section', 'summary', 'table', 'tbody', 'td', 'tfoot', 'th', 'thead', 'title', 'tr', 'track', 'ul'];
+
+// Regexps to match html elements
+
+const attr_name = '[a-zA-Z_:][a-zA-Z0-9:._-]*';
+const unquoted = '[^"\'=<>`\\x00-\\x20]+';
+const single_quoted = "'[^']*'";
+const double_quoted = '"[^"]*"';
+const attr_value = '(?:' + unquoted + '|' + single_quoted + '|' + double_quoted + ')';
+const attribute = '(?:\\s+' + attr_name + '(?:\\s*=\\s*' + attr_value + ')?)';
+const open_tag = '<[A-Za-z][A-Za-z0-9\\-]*' + attribute + '*\\s*\\/?>';
+const close_tag = '<\\/[A-Za-z][A-Za-z0-9\\-]*\\s*>';
+const comment = '<!---?>|<!--(?:[^-]|-[^-]|--[^>])*-->';
+const processing = '<[?][\\s\\S]*?[?]>';
+const declaration = '<![A-Za-z][^>]*>';
+const cdata = '<!\\[CDATA\\[[\\s\\S]*?\\]\\]>';
+const HTML_TAG_RE = new RegExp('^(?:' + open_tag + '|' + close_tag + '|' + comment + '|' + processing + '|' + declaration + '|' + cdata + ')');
+const HTML_OPEN_CLOSE_TAG_RE = new RegExp('^(?:' + open_tag + '|' + close_tag + ')');
+
+// HTML block
+
+
+// An array of opening and corresponding closing sequences for html tags,
+// last argument defines whether it can terminate a paragraph or not
+//
+const HTML_SEQUENCES = [[/^<(script|pre|style|textarea)(?=(\s|>|$))/i, /<\/(script|pre|style|textarea)>/i, true], [/^<!--/, /-->/, true], [/^<\?/, /\?>/, true], [/^<![A-Z]/, />/, true], [/^<!\[CDATA\[/, /\]\]>/, true], [new RegExp('^</?(' + block_names.join('|') + ')(?=(\\s|/?>|$))', 'i'), /^$/, true], [new RegExp(HTML_OPEN_CLOSE_TAG_RE.source + '\\s*$'), /^$/, false]];
+function html_block(state, startLine, endLine, silent) {
+ let pos = state.bMarks[startLine] + state.tShift[startLine];
+ let max = state.eMarks[startLine];
+
+ // if it's indented more than 3 spaces, it should be a code block
+ if (state.sCount[startLine] - state.blkIndent >= 4) {
+ return false;
+ }
+ if (!state.md.options.html) {
+ return false;
+ }
+ if (state.src.charCodeAt(pos) !== 0x3C /* < */) {
+ return false;
+ }
+ let lineText = state.src.slice(pos, max);
+ let i = 0;
+ for (; i < HTML_SEQUENCES.length; i++) {
+ if (HTML_SEQUENCES[i][0].test(lineText)) {
+ break;
+ }
+ }
+ if (i === HTML_SEQUENCES.length) {
+ return false;
+ }
+ if (silent) {
+ // true if this sequence can be a terminator, false otherwise
+ return HTML_SEQUENCES[i][2];
+ }
+ let nextLine = startLine + 1;
+
+ // If we are here - we detected HTML block.
+ // Let's roll down till block end.
+ if (!HTML_SEQUENCES[i][1].test(lineText)) {
+ for (; nextLine < endLine; nextLine++) {
+ if (state.sCount[nextLine] < state.blkIndent) {
+ break;
+ }
+ pos = state.bMarks[nextLine] + state.tShift[nextLine];
+ max = state.eMarks[nextLine];
+ lineText = state.src.slice(pos, max);
+ if (HTML_SEQUENCES[i][1].test(lineText)) {
+ if (lineText.length !== 0) {
+ nextLine++;
+ }
+ break;
+ }
+ }
+ }
+ state.line = nextLine;
+ const token = state.push('html_block', '', 0);
+ token.map = [startLine, nextLine];
+ token.content = state.getLines(startLine, nextLine, state.blkIndent, true);
+ return true;
+}
+
+// heading (#, ##, ...)
+
+function heading(state, startLine, endLine, silent) {
+ let pos = state.bMarks[startLine] + state.tShift[startLine];
+ let max = state.eMarks[startLine];
+
+ // if it's indented more than 3 spaces, it should be a code block
+ if (state.sCount[startLine] - state.blkIndent >= 4) {
+ return false;
+ }
+ let ch = state.src.charCodeAt(pos);
+ if (ch !== 0x23 /* # */ || pos >= max) {
+ return false;
+ }
+
+ // count heading level
+ let level = 1;
+ ch = state.src.charCodeAt(++pos);
+ while (ch === 0x23 /* # */ && pos < max && level <= 6) {
+ level++;
+ ch = state.src.charCodeAt(++pos);
+ }
+ if (level > 6 || pos < max && !isSpace(ch)) {
+ return false;
+ }
+ if (silent) {
+ return true;
+ }
+
+ // Let's cut tails like ' ### ' from the end of string
+
+ max = state.skipSpacesBack(max, pos);
+ const tmp = state.skipCharsBack(max, 0x23, pos); // #
+ if (tmp > pos && isSpace(state.src.charCodeAt(tmp - 1))) {
+ max = tmp;
+ }
+ state.line = startLine + 1;
+ const token_o = state.push('heading_open', 'h' + String(level), 1);
+ token_o.markup = '########'.slice(0, level);
+ token_o.map = [startLine, state.line];
+ const token_i = state.push('inline', '', 0);
+ token_i.content = state.src.slice(pos, max).trim();
+ token_i.map = [startLine, state.line];
+ token_i.children = [];
+ const token_c = state.push('heading_close', 'h' + String(level), -1);
+ token_c.markup = '########'.slice(0, level);
+ return true;
+}
+
+// lheading (---, ===)
+
+function lheading(state, startLine, endLine /*, silent */) {
+ const terminatorRules = state.md.block.ruler.getRules('paragraph');
+
+ // if it's indented more than 3 spaces, it should be a code block
+ if (state.sCount[startLine] - state.blkIndent >= 4) {
+ return false;
+ }
+ const oldParentType = state.parentType;
+ state.parentType = 'paragraph'; // use paragraph to match terminatorRules
+
+ // jump line-by-line until empty one or EOF
+ let level = 0;
+ let marker;
+ let nextLine = startLine + 1;
+ for (; nextLine < endLine && !state.isEmpty(nextLine); nextLine++) {
+ // this would be a code block normally, but after paragraph
+ // it's considered a lazy continuation regardless of what's there
+ if (state.sCount[nextLine] - state.blkIndent > 3) {
+ continue;
+ }
+
+ //
+ // Check for underline in setext header
+ //
+ if (state.sCount[nextLine] >= state.blkIndent) {
+ let pos = state.bMarks[nextLine] + state.tShift[nextLine];
+ const max = state.eMarks[nextLine];
+ if (pos < max) {
+ marker = state.src.charCodeAt(pos);
+ if (marker === 0x2D /* - */ || marker === 0x3D /* = */) {
+ pos = state.skipChars(pos, marker);
+ pos = state.skipSpaces(pos);
+ if (pos >= max) {
+ level = marker === 0x3D /* = */ ? 1 : 2;
+ break;
+ }
+ }
+ }
+ }
+
+ // quirk for blockquotes, this line should already be checked by that rule
+ if (state.sCount[nextLine] < 0) {
+ continue;
+ }
+
+ // Some tags can terminate paragraph without empty line.
+ let terminate = false;
+ for (let i = 0, l = terminatorRules.length; i < l; i++) {
+ if (terminatorRules[i](state, nextLine, endLine, true)) {
+ terminate = true;
+ break;
+ }
+ }
+ if (terminate) {
+ break;
+ }
+ }
+ if (!level) {
+ // Didn't find valid underline
+ return false;
+ }
+ const content = state.getLines(startLine, nextLine, state.blkIndent, false).trim();
+ state.line = nextLine + 1;
+ const token_o = state.push('heading_open', 'h' + String(level), 1);
+ token_o.markup = String.fromCharCode(marker);
+ token_o.map = [startLine, state.line];
+ const token_i = state.push('inline', '', 0);
+ token_i.content = content;
+ token_i.map = [startLine, state.line - 1];
+ token_i.children = [];
+ const token_c = state.push('heading_close', 'h' + String(level), -1);
+ token_c.markup = String.fromCharCode(marker);
+ state.parentType = oldParentType;
+ return true;
+}
+
+// Paragraph
+
+function paragraph(state, startLine, endLine) {
+ const terminatorRules = state.md.block.ruler.getRules('paragraph');
+ const oldParentType = state.parentType;
+ let nextLine = startLine + 1;
+ state.parentType = 'paragraph';
+
+ // jump line-by-line until empty one or EOF
+ for (; nextLine < endLine && !state.isEmpty(nextLine); nextLine++) {
+ // this would be a code block normally, but after paragraph
+ // it's considered a lazy continuation regardless of what's there
+ if (state.sCount[nextLine] - state.blkIndent > 3) {
+ continue;
+ }
+
+ // quirk for blockquotes, this line should already be checked by that rule
+ if (state.sCount[nextLine] < 0) {
+ continue;
+ }
+
+ // Some tags can terminate paragraph without empty line.
+ let terminate = false;
+ for (let i = 0, l = terminatorRules.length; i < l; i++) {
+ if (terminatorRules[i](state, nextLine, endLine, true)) {
+ terminate = true;
+ break;
+ }
+ }
+ if (terminate) {
+ break;
+ }
+ }
+ const content = state.getLines(startLine, nextLine, state.blkIndent, false).trim();
+ state.line = nextLine;
+ const token_o = state.push('paragraph_open', 'p', 1);
+ token_o.map = [startLine, state.line];
+ const token_i = state.push('inline', '', 0);
+ token_i.content = content;
+ token_i.map = [startLine, state.line];
+ token_i.children = [];
+ state.push('paragraph_close', 'p', -1);
+ state.parentType = oldParentType;
+ return true;
+}
+
+/** internal
+ * class ParserBlock
+ *
+ * Block-level tokenizer.
+ **/
+
+const _rules$1 = [
+// First 2 params - rule name & source. Secondary array - list of rules,
+// which can be terminated by this one.
+['table', table, ['paragraph', 'reference']], ['code', code], ['fence', fence, ['paragraph', 'reference', 'blockquote', 'list']], ['blockquote', blockquote, ['paragraph', 'reference', 'blockquote', 'list']], ['hr', hr, ['paragraph', 'reference', 'blockquote', 'list']], ['list', list, ['paragraph', 'reference', 'blockquote']], ['reference', reference], ['html_block', html_block, ['paragraph', 'reference', 'blockquote']], ['heading', heading, ['paragraph', 'reference', 'blockquote']], ['lheading', lheading], ['paragraph', paragraph]];
+
+/**
+ * new ParserBlock()
+ **/
+function ParserBlock() {
+ /**
+ * ParserBlock#ruler -> Ruler
+ *
+ * [[Ruler]] instance. Keep configuration of block rules.
+ **/
+ this.ruler = new Ruler();
+ for (let i = 0; i < _rules$1.length; i++) {
+ this.ruler.push(_rules$1[i][0], _rules$1[i][1], {
+ alt: (_rules$1[i][2] || []).slice()
+ });
+ }
+}
+
+// Generate tokens for input range
+//
+ParserBlock.prototype.tokenize = function (state, startLine, endLine) {
+ const rules = this.ruler.getRules('');
+ const len = rules.length;
+ const maxNesting = state.md.options.maxNesting;
+ let line = startLine;
+ let hasEmptyLines = false;
+ while (line < endLine) {
+ state.line = line = state.skipEmptyLines(line);
+ if (line >= endLine) {
+ break;
+ }
+
+ // Termination condition for nested calls.
+ // Nested calls currently used for blockquotes & lists
+ if (state.sCount[line] < state.blkIndent) {
+ break;
+ }
+
+ // If nesting level exceeded - skip tail to the end. That's not ordinary
+ // situation and we should not care about content.
+ if (state.level >= maxNesting) {
+ state.line = endLine;
+ break;
+ }
+
+ // Try all possible rules.
+ // On success, rule should:
+ //
+ // - update `state.line`
+ // - update `state.tokens`
+ // - return true
+ const prevLine = state.line;
+ let ok = false;
+ for (let i = 0; i < len; i++) {
+ ok = rules[i](state, line, endLine, false);
+ if (ok) {
+ if (prevLine >= state.line) {
+ throw new Error("block rule didn't increment state.line");
+ }
+ break;
+ }
+ }
+
+ // this can only happen if user disables paragraph rule
+ if (!ok) throw new Error('none of the block rules matched');
+
+ // set state.tight if we had an empty line before current tag
+ // i.e. latest empty line should not count
+ state.tight = !hasEmptyLines;
+
+ // paragraph might "eat" one newline after it in nested lists
+ if (state.isEmpty(state.line - 1)) {
+ hasEmptyLines = true;
+ }
+ line = state.line;
+ if (line < endLine && state.isEmpty(line)) {
+ hasEmptyLines = true;
+ line++;
+ state.line = line;
+ }
+ }
+};
+
+/**
+ * ParserBlock.parse(str, md, env, outTokens)
+ *
+ * Process input string and push block tokens into `outTokens`
+ **/
+ParserBlock.prototype.parse = function (src, md, env, outTokens) {
+ if (!src) {
+ return;
+ }
+ const state = new this.State(src, md, env, outTokens);
+ this.tokenize(state, state.line, state.lineMax);
+};
+ParserBlock.prototype.State = StateBlock;
+
+// Inline parser state
+
+function StateInline(src, md, env, outTokens) {
+ this.src = src;
+ this.env = env;
+ this.md = md;
+ this.tokens = outTokens;
+ this.tokens_meta = Array(outTokens.length);
+ this.pos = 0;
+ this.posMax = this.src.length;
+ this.level = 0;
+ this.pending = '';
+ this.pendingLevel = 0;
+
+ // Stores { start: end } pairs. Useful for backtrack
+ // optimization of pairs parse (emphasis, strikes).
+ this.cache = {};
+
+ // List of emphasis-like delimiters for current tag
+ this.delimiters = [];
+
+ // Stack of delimiter lists for upper level tags
+ this._prev_delimiters = [];
+
+ // backtick length => last seen position
+ this.backticks = {};
+ this.backticksScanned = false;
+
+ // Counter used to disable inline linkify-it execution
+ // inside <a> and markdown links
+ this.linkLevel = 0;
+}
+
+// Flush pending text
+//
+StateInline.prototype.pushPending = function () {
+ const token = new Token('text', '', 0);
+ token.content = this.pending;
+ token.level = this.pendingLevel;
+ this.tokens.push(token);
+ this.pending = '';
+ return token;
+};
+
+// Push new token to "stream".
+// If pending text exists - flush it as text token
+//
+StateInline.prototype.push = function (type, tag, nesting) {
+ if (this.pending) {
+ this.pushPending();
+ }
+ const token = new Token(type, tag, nesting);
+ let token_meta = null;
+ if (nesting < 0) {
+ // closing tag
+ this.level--;
+ this.delimiters = this._prev_delimiters.pop();
+ }
+ token.level = this.level;
+ if (nesting > 0) {
+ // opening tag
+ this.level++;
+ this._prev_delimiters.push(this.delimiters);
+ this.delimiters = [];
+ token_meta = {
+ delimiters: this.delimiters
+ };
+ }
+ this.pendingLevel = this.level;
+ this.tokens.push(token);
+ this.tokens_meta.push(token_meta);
+ return token;
+};
+
+// Scan a sequence of emphasis-like markers, and determine whether
+// it can start an emphasis sequence or end an emphasis sequence.
+//
+// - start - position to scan from (it should point at a valid marker);
+// - canSplitWord - determine if these markers can be found inside a word
+//
+StateInline.prototype.scanDelims = function (start, canSplitWord) {
+ const max = this.posMax;
+ const marker = this.src.charCodeAt(start);
+
+ // treat beginning of the line as a whitespace
+ const lastChar = start > 0 ? this.src.charCodeAt(start - 1) : 0x20;
+ let pos = start;
+ while (pos < max && this.src.charCodeAt(pos) === marker) {
+ pos++;
+ }
+ const count = pos - start;
+
+ // treat end of the line as a whitespace
+ const nextChar = pos < max ? this.src.charCodeAt(pos) : 0x20;
+ const isLastPunctChar = isMdAsciiPunct(lastChar) || isPunctChar(String.fromCharCode(lastChar));
+ const isNextPunctChar = isMdAsciiPunct(nextChar) || isPunctChar(String.fromCharCode(nextChar));
+ const isLastWhiteSpace = isWhiteSpace(lastChar);
+ const isNextWhiteSpace = isWhiteSpace(nextChar);
+ const left_flanking = !isNextWhiteSpace && (!isNextPunctChar || isLastWhiteSpace || isLastPunctChar);
+ const right_flanking = !isLastWhiteSpace && (!isLastPunctChar || isNextWhiteSpace || isNextPunctChar);
+ const can_open = left_flanking && (canSplitWord || !right_flanking || isLastPunctChar);
+ const can_close = right_flanking && (canSplitWord || !left_flanking || isNextPunctChar);
+ return {
+ can_open,
+ can_close,
+ length: count
+ };
+};
+
+// re-export Token class to use in block rules
+StateInline.prototype.Token = Token;
+
+// Skip text characters for text token, place those to pending buffer
+// and increment current pos
+
+// Rule to skip pure text
+// '{}$%@~+=:' reserved for extentions
+
+// !, ", #, $, %, &, ', (, ), *, +, ,, -, ., /, :, ;, <, =, >, ?, @, [, \, ], ^, _, `, {, |, }, or ~
+
+// !!!! Don't confuse with "Markdown ASCII Punctuation" chars
+// http://spec.commonmark.org/0.15/#ascii-punctuation-character
+function isTerminatorChar(ch) {
+ switch (ch) {
+ case 0x0A /* \n */:
+ case 0x21 /* ! */:
+ case 0x23 /* # */:
+ case 0x24 /* $ */:
+ case 0x25 /* % */:
+ case 0x26 /* & */:
+ case 0x2A /* * */:
+ case 0x2B /* + */:
+ case 0x2D /* - */:
+ case 0x3A /* : */:
+ case 0x3C /* < */:
+ case 0x3D /* = */:
+ case 0x3E /* > */:
+ case 0x40 /* @ */:
+ case 0x5B /* [ */:
+ case 0x5C /* \ */:
+ case 0x5D /* ] */:
+ case 0x5E /* ^ */:
+ case 0x5F /* _ */:
+ case 0x60 /* ` */:
+ case 0x7B /* { */:
+ case 0x7D /* } */:
+ case 0x7E /* ~ */:
+ return true;
+ default:
+ return false;
+ }
+}
+function text(state, silent) {
+ let pos = state.pos;
+ while (pos < state.posMax && !isTerminatorChar(state.src.charCodeAt(pos))) {
+ pos++;
+ }
+ if (pos === state.pos) {
+ return false;
+ }
+ if (!silent) {
+ state.pending += state.src.slice(state.pos, pos);
+ }
+ state.pos = pos;
+ return true;
+}
+
+// Alternative implementation, for memory.
+//
+// It costs 10% of performance, but allows extend terminators list, if place it
+// to `ParserInline` property. Probably, will switch to it sometime, such
+// flexibility required.
+
+/*
+var TERMINATOR_RE = /[\n!#$%&*+\-:<=>@[\\\]^_`{}~]/;
+
+module.exports = function text(state, silent) {
+ var pos = state.pos,
+ idx = state.src.slice(pos).search(TERMINATOR_RE);
+
+ // first char is terminator -> empty text
+ if (idx === 0) { return false; }
+
+ // no terminator -> text till end of string
+ if (idx < 0) {
+ if (!silent) { state.pending += state.src.slice(pos); }
+ state.pos = state.src.length;
+ return true;
+ }
+
+ if (!silent) { state.pending += state.src.slice(pos, pos + idx); }
+
+ state.pos += idx;
+
+ return true;
+}; */
+
+// Process links like https://example.org/
+
+// RFC3986: scheme = ALPHA *( ALPHA / DIGIT / "+" / "-" / "." )
+const SCHEME_RE = /(?:^|[^a-z0-9.+-])([a-z][a-z0-9.+-]*)$/i;
+function linkify(state, silent) {
+ if (!state.md.options.linkify) return false;
+ if (state.linkLevel > 0) return false;
+ const pos = state.pos;
+ const max = state.posMax;
+ if (pos + 3 > max) return false;
+ if (state.src.charCodeAt(pos) !== 0x3A /* : */) return false;
+ if (state.src.charCodeAt(pos + 1) !== 0x2F /* / */) return false;
+ if (state.src.charCodeAt(pos + 2) !== 0x2F /* / */) return false;
+ const match = state.pending.match(SCHEME_RE);
+ if (!match) return false;
+ const proto = match[1];
+ const link = state.md.linkify.matchAtStart(state.src.slice(pos - proto.length));
+ if (!link) return false;
+ let url = link.url;
+
+ // invalid link, but still detected by linkify somehow;
+ // need to check to prevent infinite loop below
+ if (url.length <= proto.length) return false;
+
+ // disallow '*' at the end of the link (conflicts with emphasis)
+ url = url.replace(/\*+$/, '');
+ const fullUrl = state.md.normalizeLink(url);
+ if (!state.md.validateLink(fullUrl)) return false;
+ if (!silent) {
+ state.pending = state.pending.slice(0, -proto.length);
+ const token_o = state.push('link_open', 'a', 1);
+ token_o.attrs = [['href', fullUrl]];
+ token_o.markup = 'linkify';
+ token_o.info = 'auto';
+ const token_t = state.push('text', '', 0);
+ token_t.content = state.md.normalizeLinkText(url);
+ const token_c = state.push('link_close', 'a', -1);
+ token_c.markup = 'linkify';
+ token_c.info = 'auto';
+ }
+ state.pos += url.length - proto.length;
+ return true;
+}
+
+// Proceess '\n'
+
+function newline(state, silent) {
+ let pos = state.pos;
+ if (state.src.charCodeAt(pos) !== 0x0A /* \n */) {
+ return false;
+ }
+ const pmax = state.pending.length - 1;
+ const max = state.posMax;
+
+ // ' \n' -> hardbreak
+ // Lookup in pending chars is bad practice! Don't copy to other rules!
+ // Pending string is stored in concat mode, indexed lookups will cause
+ // convertion to flat mode.
+ if (!silent) {
+ if (pmax >= 0 && state.pending.charCodeAt(pmax) === 0x20) {
+ if (pmax >= 1 && state.pending.charCodeAt(pmax - 1) === 0x20) {
+ // Find whitespaces tail of pending chars.
+ let ws = pmax - 1;
+ while (ws >= 1 && state.pending.charCodeAt(ws - 1) === 0x20) ws--;
+ state.pending = state.pending.slice(0, ws);
+ state.push('hardbreak', 'br', 0);
+ } else {
+ state.pending = state.pending.slice(0, -1);
+ state.push('softbreak', 'br', 0);
+ }
+ } else {
+ state.push('softbreak', 'br', 0);
+ }
+ }
+ pos++;
+
+ // skip heading spaces for next line
+ while (pos < max && isSpace(state.src.charCodeAt(pos))) {
+ pos++;
+ }
+ state.pos = pos;
+ return true;
+}
+
+// Process escaped chars and hardbreaks
+
+const ESCAPED = [];
+for (let i = 0; i < 256; i++) {
+ ESCAPED.push(0);
+}
+'\\!"#$%&\'()*+,./:;<=>?@[]^_`{|}~-'.split('').forEach(function (ch) {
+ ESCAPED[ch.charCodeAt(0)] = 1;
+});
+function escape(state, silent) {
+ let pos = state.pos;
+ const max = state.posMax;
+ if (state.src.charCodeAt(pos) !== 0x5C /* \ */) return false;
+ pos++;
+
+ // '\' at the end of the inline block
+ if (pos >= max) return false;
+ let ch1 = state.src.charCodeAt(pos);
+ if (ch1 === 0x0A) {
+ if (!silent) {
+ state.push('hardbreak', 'br', 0);
+ }
+ pos++;
+ // skip leading whitespaces from next line
+ while (pos < max) {
+ ch1 = state.src.charCodeAt(pos);
+ if (!isSpace(ch1)) break;
+ pos++;
+ }
+ state.pos = pos;
+ return true;
+ }
+ let escapedStr = state.src[pos];
+ if (ch1 >= 0xD800 && ch1 <= 0xDBFF && pos + 1 < max) {
+ const ch2 = state.src.charCodeAt(pos + 1);
+ if (ch2 >= 0xDC00 && ch2 <= 0xDFFF) {
+ escapedStr += state.src[pos + 1];
+ pos++;
+ }
+ }
+ const origStr = '\\' + escapedStr;
+ if (!silent) {
+ const token = state.push('text_special', '', 0);
+ if (ch1 < 256 && ESCAPED[ch1] !== 0) {
+ token.content = escapedStr;
+ } else {
+ token.content = origStr;
+ }
+ token.markup = origStr;
+ token.info = 'escape';
+ }
+ state.pos = pos + 1;
+ return true;
+}
+
+// Parse backticks
+
+function backtick(state, silent) {
+ let pos = state.pos;
+ const ch = state.src.charCodeAt(pos);
+ if (ch !== 0x60 /* ` */) {
+ return false;
+ }
+ const start = pos;
+ pos++;
+ const max = state.posMax;
+
+ // scan marker length
+ while (pos < max && state.src.charCodeAt(pos) === 0x60 /* ` */) {
+ pos++;
+ }
+ const marker = state.src.slice(start, pos);
+ const openerLength = marker.length;
+ if (state.backticksScanned && (state.backticks[openerLength] || 0) <= start) {
+ if (!silent) state.pending += marker;
+ state.pos += openerLength;
+ return true;
+ }
+ let matchEnd = pos;
+ let matchStart;
+
+ // Nothing found in the cache, scan until the end of the line (or until marker is found)
+ while ((matchStart = state.src.indexOf('`', matchEnd)) !== -1) {
+ matchEnd = matchStart + 1;
+
+ // scan marker length
+ while (matchEnd < max && state.src.charCodeAt(matchEnd) === 0x60 /* ` */) {
+ matchEnd++;
+ }
+ const closerLength = matchEnd - matchStart;
+ if (closerLength === openerLength) {
+ // Found matching closer length.
+ if (!silent) {
+ const token = state.push('code_inline', 'code', 0);
+ token.markup = marker;
+ token.content = state.src.slice(pos, matchStart).replace(/\n/g, ' ').replace(/^ (.+) $/, '$1');
+ }
+ state.pos = matchEnd;
+ return true;
+ }
+
+ // Some different length found, put it in cache as upper limit of where closer can be found
+ state.backticks[closerLength] = matchStart;
+ }
+
+ // Scanned through the end, didn't find anything
+ state.backticksScanned = true;
+ if (!silent) state.pending += marker;
+ state.pos += openerLength;
+ return true;
+}
+
+// ~~strike through~~
+//
+
+// Insert each marker as a separate text token, and add it to delimiter list
+//
+function strikethrough_tokenize(state, silent) {
+ const start = state.pos;
+ const marker = state.src.charCodeAt(start);
+ if (silent) {
+ return false;
+ }
+ if (marker !== 0x7E /* ~ */) {
+ return false;
+ }
+ const scanned = state.scanDelims(state.pos, true);
+ let len = scanned.length;
+ const ch = String.fromCharCode(marker);
+ if (len < 2) {
+ return false;
+ }
+ let token;
+ if (len % 2) {
+ token = state.push('text', '', 0);
+ token.content = ch;
+ len--;
+ }
+ for (let i = 0; i < len; i += 2) {
+ token = state.push('text', '', 0);
+ token.content = ch + ch;
+ state.delimiters.push({
+ marker,
+ length: 0,
+ // disable "rule of 3" length checks meant for emphasis
+ token: state.tokens.length - 1,
+ end: -1,
+ open: scanned.can_open,
+ close: scanned.can_close
+ });
+ }
+ state.pos += scanned.length;
+ return true;
+}
+function postProcess$1(state, delimiters) {
+ let token;
+ const loneMarkers = [];
+ const max = delimiters.length;
+ for (let i = 0; i < max; i++) {
+ const startDelim = delimiters[i];
+ if (startDelim.marker !== 0x7E /* ~ */) {
+ continue;
+ }
+ if (startDelim.end === -1) {
+ continue;
+ }
+ const endDelim = delimiters[startDelim.end];
+ token = state.tokens[startDelim.token];
+ token.type = 's_open';
+ token.tag = 's';
+ token.nesting = 1;
+ token.markup = '~~';
+ token.content = '';
+ token = state.tokens[endDelim.token];
+ token.type = 's_close';
+ token.tag = 's';
+ token.nesting = -1;
+ token.markup = '~~';
+ token.content = '';
+ if (state.tokens[endDelim.token - 1].type === 'text' && state.tokens[endDelim.token - 1].content === '~') {
+ loneMarkers.push(endDelim.token - 1);
+ }
+ }
+
+ // If a marker sequence has an odd number of characters, it's splitted
+ // like this: `~~~~~` -> `~` + `~~` + `~~`, leaving one marker at the
+ // start of the sequence.
+ //
+ // So, we have to move all those markers after subsequent s_close tags.
+ //
+ while (loneMarkers.length) {
+ const i = loneMarkers.pop();
+ let j = i + 1;
+ while (j < state.tokens.length && state.tokens[j].type === 's_close') {
+ j++;
+ }
+ j--;
+ if (i !== j) {
+ token = state.tokens[j];
+ state.tokens[j] = state.tokens[i];
+ state.tokens[i] = token;
+ }
+ }
+}
+
+// Walk through delimiter list and replace text tokens with tags
+//
+function strikethrough_postProcess(state) {
+ const tokens_meta = state.tokens_meta;
+ const max = state.tokens_meta.length;
+ postProcess$1(state, state.delimiters);
+ for (let curr = 0; curr < max; curr++) {
+ if (tokens_meta[curr] && tokens_meta[curr].delimiters) {
+ postProcess$1(state, tokens_meta[curr].delimiters);
+ }
+ }
+}
+var r_strikethrough = {
+ tokenize: strikethrough_tokenize,
+ postProcess: strikethrough_postProcess
+};
+
+// Process *this* and _that_
+//
+
+// Insert each marker as a separate text token, and add it to delimiter list
+//
+function emphasis_tokenize(state, silent) {
+ const start = state.pos;
+ const marker = state.src.charCodeAt(start);
+ if (silent) {
+ return false;
+ }
+ if (marker !== 0x5F /* _ */ && marker !== 0x2A /* * */) {
+ return false;
+ }
+ const scanned = state.scanDelims(state.pos, marker === 0x2A);
+ for (let i = 0; i < scanned.length; i++) {
+ const token = state.push('text', '', 0);
+ token.content = String.fromCharCode(marker);
+ state.delimiters.push({
+ // Char code of the starting marker (number).
+ //
+ marker,
+ // Total length of these series of delimiters.
+ //
+ length: scanned.length,
+ // A position of the token this delimiter corresponds to.
+ //
+ token: state.tokens.length - 1,
+ // If this delimiter is matched as a valid opener, `end` will be
+ // equal to its position, otherwise it's `-1`.
+ //
+ end: -1,
+ // Boolean flags that determine if this delimiter could open or close
+ // an emphasis.
+ //
+ open: scanned.can_open,
+ close: scanned.can_close
+ });
+ }
+ state.pos += scanned.length;
+ return true;
+}
+function postProcess(state, delimiters) {
+ const max = delimiters.length;
+ for (let i = max - 1; i >= 0; i--) {
+ const startDelim = delimiters[i];
+ if (startDelim.marker !== 0x5F /* _ */ && startDelim.marker !== 0x2A /* * */) {
+ continue;
+ }
+
+ // Process only opening markers
+ if (startDelim.end === -1) {
+ continue;
+ }
+ const endDelim = delimiters[startDelim.end];
+
+ // If the previous delimiter has the same marker and is adjacent to this one,
+ // merge those into one strong delimiter.
+ //
+ // `<em><em>whatever</em></em>` -> `<strong>whatever</strong>`
+ //
+ const isStrong = i > 0 && delimiters[i - 1].end === startDelim.end + 1 &&
+ // check that first two markers match and adjacent
+ delimiters[i - 1].marker === startDelim.marker && delimiters[i - 1].token === startDelim.token - 1 &&
+ // check that last two markers are adjacent (we can safely assume they match)
+ delimiters[startDelim.end + 1].token === endDelim.token + 1;
+ const ch = String.fromCharCode(startDelim.marker);
+ const token_o = state.tokens[startDelim.token];
+ token_o.type = isStrong ? 'strong_open' : 'em_open';
+ token_o.tag = isStrong ? 'strong' : 'em';
+ token_o.nesting = 1;
+ token_o.markup = isStrong ? ch + ch : ch;
+ token_o.content = '';
+ const token_c = state.tokens[endDelim.token];
+ token_c.type = isStrong ? 'strong_close' : 'em_close';
+ token_c.tag = isStrong ? 'strong' : 'em';
+ token_c.nesting = -1;
+ token_c.markup = isStrong ? ch + ch : ch;
+ token_c.content = '';
+ if (isStrong) {
+ state.tokens[delimiters[i - 1].token].content = '';
+ state.tokens[delimiters[startDelim.end + 1].token].content = '';
+ i--;
+ }
+ }
+}
+
+// Walk through delimiter list and replace text tokens with tags
+//
+function emphasis_post_process(state) {
+ const tokens_meta = state.tokens_meta;
+ const max = state.tokens_meta.length;
+ postProcess(state, state.delimiters);
+ for (let curr = 0; curr < max; curr++) {
+ if (tokens_meta[curr] && tokens_meta[curr].delimiters) {
+ postProcess(state, tokens_meta[curr].delimiters);
+ }
+ }
+}
+var r_emphasis = {
+ tokenize: emphasis_tokenize,
+ postProcess: emphasis_post_process
+};
+
+// Process [link](<to> "stuff")
+
+function link(state, silent) {
+ let code, label, res, ref;
+ let href = '';
+ let title = '';
+ let start = state.pos;
+ let parseReference = true;
+ if (state.src.charCodeAt(state.pos) !== 0x5B /* [ */) {
+ return false;
+ }
+ const oldPos = state.pos;
+ const max = state.posMax;
+ const labelStart = state.pos + 1;
+ const labelEnd = state.md.helpers.parseLinkLabel(state, state.pos, true);
+
+ // parser failed to find ']', so it's not a valid link
+ if (labelEnd < 0) {
+ return false;
+ }
+ let pos = labelEnd + 1;
+ if (pos < max && state.src.charCodeAt(pos) === 0x28 /* ( */) {
+ //
+ // Inline link
+ //
+
+ // might have found a valid shortcut link, disable reference parsing
+ parseReference = false;
+
+ // [link]( <href> "title" )
+ // ^^ skipping these spaces
+ pos++;
+ for (; pos < max; pos++) {
+ code = state.src.charCodeAt(pos);
+ if (!isSpace(code) && code !== 0x0A) {
+ break;
+ }
+ }
+ if (pos >= max) {
+ return false;
+ }
+
+ // [link]( <href> "title" )
+ // ^^^^^^ parsing link destination
+ start = pos;
+ res = state.md.helpers.parseLinkDestination(state.src, pos, state.posMax);
+ if (res.ok) {
+ href = state.md.normalizeLink(res.str);
+ if (state.md.validateLink(href)) {
+ pos = res.pos;
+ } else {
+ href = '';
+ }
+
+ // [link]( <href> "title" )
+ // ^^ skipping these spaces
+ start = pos;
+ for (; pos < max; pos++) {
+ code = state.src.charCodeAt(pos);
+ if (!isSpace(code) && code !== 0x0A) {
+ break;
+ }
+ }
+
+ // [link]( <href> "title" )
+ // ^^^^^^^ parsing link title
+ res = state.md.helpers.parseLinkTitle(state.src, pos, state.posMax);
+ if (pos < max && start !== pos && res.ok) {
+ title = res.str;
+ pos = res.pos;
+
+ // [link]( <href> "title" )
+ // ^^ skipping these spaces
+ for (; pos < max; pos++) {
+ code = state.src.charCodeAt(pos);
+ if (!isSpace(code) && code !== 0x0A) {
+ break;
+ }
+ }
+ }
+ }
+ if (pos >= max || state.src.charCodeAt(pos) !== 0x29 /* ) */) {
+ // parsing a valid shortcut link failed, fallback to reference
+ parseReference = true;
+ }
+ pos++;
+ }
+ if (parseReference) {
+ //
+ // Link reference
+ //
+ if (typeof state.env.references === 'undefined') {
+ return false;
+ }
+ if (pos < max && state.src.charCodeAt(pos) === 0x5B /* [ */) {
+ start = pos + 1;
+ pos = state.md.helpers.parseLinkLabel(state, pos);
+ if (pos >= 0) {
+ label = state.src.slice(start, pos++);
+ } else {
+ pos = labelEnd + 1;
+ }
+ } else {
+ pos = labelEnd + 1;
+ }
+
+ // covers label === '' and label === undefined
+ // (collapsed reference link and shortcut reference link respectively)
+ if (!label) {
+ label = state.src.slice(labelStart, labelEnd);
+ }
+ ref = state.env.references[normalizeReference(label)];
+ if (!ref) {
+ state.pos = oldPos;
+ return false;
+ }
+ href = ref.href;
+ title = ref.title;
+ }
+
+ //
+ // We found the end of the link, and know for a fact it's a valid link;
+ // so all that's left to do is to call tokenizer.
+ //
+ if (!silent) {
+ state.pos = labelStart;
+ state.posMax = labelEnd;
+ const token_o = state.push('link_open', 'a', 1);
+ const attrs = [['href', href]];
+ token_o.attrs = attrs;
+ if (title) {
+ attrs.push(['title', title]);
+ }
+ state.linkLevel++;
+ state.md.inline.tokenize(state);
+ state.linkLevel--;
+ state.push('link_close', 'a', -1);
+ }
+ state.pos = pos;
+ state.posMax = max;
+ return true;
+}
+
+// Process ![image](<src> "title")
+
+function image(state, silent) {
+ let code, content, label, pos, ref, res, title, start;
+ let href = '';
+ const oldPos = state.pos;
+ const max = state.posMax;
+ if (state.src.charCodeAt(state.pos) !== 0x21 /* ! */) {
+ return false;
+ }
+ if (state.src.charCodeAt(state.pos + 1) !== 0x5B /* [ */) {
+ return false;
+ }
+ const labelStart = state.pos + 2;
+ const labelEnd = state.md.helpers.parseLinkLabel(state, state.pos + 1, false);
+
+ // parser failed to find ']', so it's not a valid link
+ if (labelEnd < 0) {
+ return false;
+ }
+ pos = labelEnd + 1;
+ if (pos < max && state.src.charCodeAt(pos) === 0x28 /* ( */) {
+ //
+ // Inline link
+ //
+
+ // [link]( <href> "title" )
+ // ^^ skipping these spaces
+ pos++;
+ for (; pos < max; pos++) {
+ code = state.src.charCodeAt(pos);
+ if (!isSpace(code) && code !== 0x0A) {
+ break;
+ }
+ }
+ if (pos >= max) {
+ return false;
+ }
+
+ // [link]( <href> "title" )
+ // ^^^^^^ parsing link destination
+ start = pos;
+ res = state.md.helpers.parseLinkDestination(state.src, pos, state.posMax);
+ if (res.ok) {
+ href = state.md.normalizeLink(res.str);
+ if (state.md.validateLink(href)) {
+ pos = res.pos;
+ } else {
+ href = '';
+ }
+ }
+
+ // [link]( <href> "title" )
+ // ^^ skipping these spaces
+ start = pos;
+ for (; pos < max; pos++) {
+ code = state.src.charCodeAt(pos);
+ if (!isSpace(code) && code !== 0x0A) {
+ break;
+ }
+ }
+
+ // [link]( <href> "title" )
+ // ^^^^^^^ parsing link title
+ res = state.md.helpers.parseLinkTitle(state.src, pos, state.posMax);
+ if (pos < max && start !== pos && res.ok) {
+ title = res.str;
+ pos = res.pos;
+
+ // [link]( <href> "title" )
+ // ^^ skipping these spaces
+ for (; pos < max; pos++) {
+ code = state.src.charCodeAt(pos);
+ if (!isSpace(code) && code !== 0x0A) {
+ break;
+ }
+ }
+ } else {
+ title = '';
+ }
+ if (pos >= max || state.src.charCodeAt(pos) !== 0x29 /* ) */) {
+ state.pos = oldPos;
+ return false;
+ }
+ pos++;
+ } else {
+ //
+ // Link reference
+ //
+ if (typeof state.env.references === 'undefined') {
+ return false;
+ }
+ if (pos < max && state.src.charCodeAt(pos) === 0x5B /* [ */) {
+ start = pos + 1;
+ pos = state.md.helpers.parseLinkLabel(state, pos);
+ if (pos >= 0) {
+ label = state.src.slice(start, pos++);
+ } else {
+ pos = labelEnd + 1;
+ }
+ } else {
+ pos = labelEnd + 1;
+ }
+
+ // covers label === '' and label === undefined
+ // (collapsed reference link and shortcut reference link respectively)
+ if (!label) {
+ label = state.src.slice(labelStart, labelEnd);
+ }
+ ref = state.env.references[normalizeReference(label)];
+ if (!ref) {
+ state.pos = oldPos;
+ return false;
+ }
+ href = ref.href;
+ title = ref.title;
+ }
+
+ //
+ // We found the end of the link, and know for a fact it's a valid link;
+ // so all that's left to do is to call tokenizer.
+ //
+ if (!silent) {
+ content = state.src.slice(labelStart, labelEnd);
+ const tokens = [];
+ state.md.inline.parse(content, state.md, state.env, tokens);
+ const token = state.push('image', 'img', 0);
+ const attrs = [['src', href], ['alt', '']];
+ token.attrs = attrs;
+ token.children = tokens;
+ token.content = content;
+ if (title) {
+ attrs.push(['title', title]);
+ }
+ }
+ state.pos = pos;
+ state.posMax = max;
+ return true;
+}
+
+// Process autolinks '<protocol:...>'
+
+/* eslint max-len:0 */
+const EMAIL_RE = /^([a-zA-Z0-9.!#$%&'*+/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*)$/;
+/* eslint-disable-next-line no-control-regex */
+const AUTOLINK_RE = /^([a-zA-Z][a-zA-Z0-9+.-]{1,31}):([^<>\x00-\x20]*)$/;
+function autolink(state, silent) {
+ let pos = state.pos;
+ if (state.src.charCodeAt(pos) !== 0x3C /* < */) {
+ return false;
+ }
+ const start = state.pos;
+ const max = state.posMax;
+ for (;;) {
+ if (++pos >= max) return false;
+ const ch = state.src.charCodeAt(pos);
+ if (ch === 0x3C /* < */) return false;
+ if (ch === 0x3E /* > */) break;
+ }
+ const url = state.src.slice(start + 1, pos);
+ if (AUTOLINK_RE.test(url)) {
+ const fullUrl = state.md.normalizeLink(url);
+ if (!state.md.validateLink(fullUrl)) {
+ return false;
+ }
+ if (!silent) {
+ const token_o = state.push('link_open', 'a', 1);
+ token_o.attrs = [['href', fullUrl]];
+ token_o.markup = 'autolink';
+ token_o.info = 'auto';
+ const token_t = state.push('text', '', 0);
+ token_t.content = state.md.normalizeLinkText(url);
+ const token_c = state.push('link_close', 'a', -1);
+ token_c.markup = 'autolink';
+ token_c.info = 'auto';
+ }
+ state.pos += url.length + 2;
+ return true;
+ }
+ if (EMAIL_RE.test(url)) {
+ const fullUrl = state.md.normalizeLink('mailto:' + url);
+ if (!state.md.validateLink(fullUrl)) {
+ return false;
+ }
+ if (!silent) {
+ const token_o = state.push('link_open', 'a', 1);
+ token_o.attrs = [['href', fullUrl]];
+ token_o.markup = 'autolink';
+ token_o.info = 'auto';
+ const token_t = state.push('text', '', 0);
+ token_t.content = state.md.normalizeLinkText(url);
+ const token_c = state.push('link_close', 'a', -1);
+ token_c.markup = 'autolink';
+ token_c.info = 'auto';
+ }
+ state.pos += url.length + 2;
+ return true;
+ }
+ return false;
+}
+
+// Process html tags
+
+function isLinkOpen(str) {
+ return /^<a[>\s]/i.test(str);
+}
+function isLinkClose(str) {
+ return /^<\/a\s*>/i.test(str);
+}
+function isLetter(ch) {
+ /* eslint no-bitwise:0 */
+ const lc = ch | 0x20; // to lower case
+ return lc >= 0x61 /* a */ && lc <= 0x7a /* z */;
+}
+function html_inline(state, silent) {
+ if (!state.md.options.html) {
+ return false;
+ }
+
+ // Check start
+ const max = state.posMax;
+ const pos = state.pos;
+ if (state.src.charCodeAt(pos) !== 0x3C /* < */ || pos + 2 >= max) {
+ return false;
+ }
+
+ // Quick fail on second char
+ const ch = state.src.charCodeAt(pos + 1);
+ if (ch !== 0x21 /* ! */ && ch !== 0x3F /* ? */ && ch !== 0x2F /* / */ && !isLetter(ch)) {
+ return false;
+ }
+ const match = state.src.slice(pos).match(HTML_TAG_RE);
+ if (!match) {
+ return false;
+ }
+ if (!silent) {
+ const token = state.push('html_inline', '', 0);
+ token.content = match[0];
+ if (isLinkOpen(token.content)) state.linkLevel++;
+ if (isLinkClose(token.content)) state.linkLevel--;
+ }
+ state.pos += match[0].length;
+ return true;
+}
+
+// Process html entity - &#123;, &#xAF;, &quot;, ...
+
+const DIGITAL_RE = /^&#((?:x[a-f0-9]{1,6}|[0-9]{1,7}));/i;
+const NAMED_RE = /^&([a-z][a-z0-9]{1,31});/i;
+function entity(state, silent) {
+ const pos = state.pos;
+ const max = state.posMax;
+ if (state.src.charCodeAt(pos) !== 0x26 /* & */) return false;
+ if (pos + 1 >= max) return false;
+ const ch = state.src.charCodeAt(pos + 1);
+ if (ch === 0x23 /* # */) {
+ const match = state.src.slice(pos).match(DIGITAL_RE);
+ if (match) {
+ if (!silent) {
+ const code = match[1][0].toLowerCase() === 'x' ? parseInt(match[1].slice(1), 16) : parseInt(match[1], 10);
+ const token = state.push('text_special', '', 0);
+ token.content = isValidEntityCode(code) ? fromCodePoint(code) : fromCodePoint(0xFFFD);
+ token.markup = match[0];
+ token.info = 'entity';
+ }
+ state.pos += match[0].length;
+ return true;
+ }
+ } else {
+ const match = state.src.slice(pos).match(NAMED_RE);
+ if (match) {
+ const decoded = entities.decodeHTML(match[0]);
+ if (decoded !== match[0]) {
+ if (!silent) {
+ const token = state.push('text_special', '', 0);
+ token.content = decoded;
+ token.markup = match[0];
+ token.info = 'entity';
+ }
+ state.pos += match[0].length;
+ return true;
+ }
+ }
+ }
+ return false;
+}
+
+// For each opening emphasis-like marker find a matching closing one
+//
+
+function processDelimiters(delimiters) {
+ const openersBottom = {};
+ const max = delimiters.length;
+ if (!max) return;
+
+ // headerIdx is the first delimiter of the current (where closer is) delimiter run
+ let headerIdx = 0;
+ let lastTokenIdx = -2; // needs any value lower than -1
+ const jumps = [];
+ for (let closerIdx = 0; closerIdx < max; closerIdx++) {
+ const closer = delimiters[closerIdx];
+ jumps.push(0);
+
+ // markers belong to same delimiter run if:
+ // - they have adjacent tokens
+ // - AND markers are the same
+ //
+ if (delimiters[headerIdx].marker !== closer.marker || lastTokenIdx !== closer.token - 1) {
+ headerIdx = closerIdx;
+ }
+ lastTokenIdx = closer.token;
+
+ // Length is only used for emphasis-specific "rule of 3",
+ // if it's not defined (in strikethrough or 3rd party plugins),
+ // we can default it to 0 to disable those checks.
+ //
+ closer.length = closer.length || 0;
+ if (!closer.close) continue;
+
+ // Previously calculated lower bounds (previous fails)
+ // for each marker, each delimiter length modulo 3,
+ // and for whether this closer can be an opener;
+ // https://github.com/commonmark/cmark/commit/34250e12ccebdc6372b8b49c44fab57c72443460
+ /* eslint-disable-next-line no-prototype-builtins */
+ if (!openersBottom.hasOwnProperty(closer.marker)) {
+ openersBottom[closer.marker] = [-1, -1, -1, -1, -1, -1];
+ }
+ const minOpenerIdx = openersBottom[closer.marker][(closer.open ? 3 : 0) + closer.length % 3];
+ let openerIdx = headerIdx - jumps[headerIdx] - 1;
+ let newMinOpenerIdx = openerIdx;
+ for (; openerIdx > minOpenerIdx; openerIdx -= jumps[openerIdx] + 1) {
+ const opener = delimiters[openerIdx];
+ if (opener.marker !== closer.marker) continue;
+ if (opener.open && opener.end < 0) {
+ let isOddMatch = false;
+
+ // from spec:
+ //
+ // If one of the delimiters can both open and close emphasis, then the
+ // sum of the lengths of the delimiter runs containing the opening and
+ // closing delimiters must not be a multiple of 3 unless both lengths
+ // are multiples of 3.
+ //
+ if (opener.close || closer.open) {
+ if ((opener.length + closer.length) % 3 === 0) {
+ if (opener.length % 3 !== 0 || closer.length % 3 !== 0) {
+ isOddMatch = true;
+ }
+ }
+ }
+ if (!isOddMatch) {
+ // If previous delimiter cannot be an opener, we can safely skip
+ // the entire sequence in future checks. This is required to make
+ // sure algorithm has linear complexity (see *_*_*_*_*_... case).
+ //
+ const lastJump = openerIdx > 0 && !delimiters[openerIdx - 1].open ? jumps[openerIdx - 1] + 1 : 0;
+ jumps[closerIdx] = closerIdx - openerIdx + lastJump;
+ jumps[openerIdx] = lastJump;
+ closer.open = false;
+ opener.end = closerIdx;
+ opener.close = false;
+ newMinOpenerIdx = -1;
+ // treat next token as start of run,
+ // it optimizes skips in **<...>**a**<...>** pathological case
+ lastTokenIdx = -2;
+ break;
+ }
+ }
+ }
+ if (newMinOpenerIdx !== -1) {
+ // If match for this delimiter run failed, we want to set lower bound for
+ // future lookups. This is required to make sure algorithm has linear
+ // complexity.
+ //
+ // See details here:
+ // https://github.com/commonmark/cmark/issues/178#issuecomment-270417442
+ //
+ openersBottom[closer.marker][(closer.open ? 3 : 0) + (closer.length || 0) % 3] = newMinOpenerIdx;
+ }
+ }
+}
+function link_pairs(state) {
+ const tokens_meta = state.tokens_meta;
+ const max = state.tokens_meta.length;
+ processDelimiters(state.delimiters);
+ for (let curr = 0; curr < max; curr++) {
+ if (tokens_meta[curr] && tokens_meta[curr].delimiters) {
+ processDelimiters(tokens_meta[curr].delimiters);
+ }
+ }
+}
+
+// Clean up tokens after emphasis and strikethrough postprocessing:
+// merge adjacent text nodes into one and re-calculate all token levels
+//
+// This is necessary because initially emphasis delimiter markers (*, _, ~)
+// are treated as their own separate text tokens. Then emphasis rule either
+// leaves them as text (needed to merge with adjacent text) or turns them
+// into opening/closing tags (which messes up levels inside).
+//
+
+function fragments_join(state) {
+ let curr, last;
+ let level = 0;
+ const tokens = state.tokens;
+ const max = state.tokens.length;
+ for (curr = last = 0; curr < max; curr++) {
+ // re-calculate levels after emphasis/strikethrough turns some text nodes
+ // into opening/closing tags
+ if (tokens[curr].nesting < 0) level--; // closing tag
+ tokens[curr].level = level;
+ if (tokens[curr].nesting > 0) level++; // opening tag
+
+ if (tokens[curr].type === 'text' && curr + 1 < max && tokens[curr + 1].type === 'text') {
+ // collapse two adjacent text nodes
+ tokens[curr + 1].content = tokens[curr].content + tokens[curr + 1].content;
+ } else {
+ if (curr !== last) {
+ tokens[last] = tokens[curr];
+ }
+ last++;
+ }
+ }
+ if (curr !== last) {
+ tokens.length = last;
+ }
+}
+
+/** internal
+ * class ParserInline
+ *
+ * Tokenizes paragraph content.
+ **/
+
+
+// Parser rules
+
+const _rules = [['text', text], ['linkify', linkify], ['newline', newline], ['escape', escape], ['backticks', backtick], ['strikethrough', r_strikethrough.tokenize], ['emphasis', r_emphasis.tokenize], ['link', link], ['image', image], ['autolink', autolink], ['html_inline', html_inline], ['entity', entity]];
+
+// `rule2` ruleset was created specifically for emphasis/strikethrough
+// post-processing and may be changed in the future.
+//
+// Don't use this for anything except pairs (plugins working with `balance_pairs`).
+//
+const _rules2 = [['balance_pairs', link_pairs], ['strikethrough', r_strikethrough.postProcess], ['emphasis', r_emphasis.postProcess],
+// rules for pairs separate '**' into its own text tokens, which may be left unused,
+// rule below merges unused segments back with the rest of the text
+['fragments_join', fragments_join]];
+
+/**
+ * new ParserInline()
+ **/
+function ParserInline() {
+ /**
+ * ParserInline#ruler -> Ruler
+ *
+ * [[Ruler]] instance. Keep configuration of inline rules.
+ **/
+ this.ruler = new Ruler();
+ for (let i = 0; i < _rules.length; i++) {
+ this.ruler.push(_rules[i][0], _rules[i][1]);
+ }
+
+ /**
+ * ParserInline#ruler2 -> Ruler
+ *
+ * [[Ruler]] instance. Second ruler used for post-processing
+ * (e.g. in emphasis-like rules).
+ **/
+ this.ruler2 = new Ruler();
+ for (let i = 0; i < _rules2.length; i++) {
+ this.ruler2.push(_rules2[i][0], _rules2[i][1]);
+ }
+}
+
+// Skip single token by running all rules in validation mode;
+// returns `true` if any rule reported success
+//
+ParserInline.prototype.skipToken = function (state) {
+ const pos = state.pos;
+ const rules = this.ruler.getRules('');
+ const len = rules.length;
+ const maxNesting = state.md.options.maxNesting;
+ const cache = state.cache;
+ if (typeof cache[pos] !== 'undefined') {
+ state.pos = cache[pos];
+ return;
+ }
+ let ok = false;
+ if (state.level < maxNesting) {
+ for (let i = 0; i < len; i++) {
+ // Increment state.level and decrement it later to limit recursion.
+ // It's harmless to do here, because no tokens are created. But ideally,
+ // we'd need a separate private state variable for this purpose.
+ //
+ state.level++;
+ ok = rules[i](state, true);
+ state.level--;
+ if (ok) {
+ if (pos >= state.pos) {
+ throw new Error("inline rule didn't increment state.pos");
+ }
+ break;
+ }
+ }
+ } else {
+ // Too much nesting, just skip until the end of the paragraph.
+ //
+ // NOTE: this will cause links to behave incorrectly in the following case,
+ // when an amount of `[` is exactly equal to `maxNesting + 1`:
+ //
+ // [[[[[[[[[[[[[[[[[[[[[foo]()
+ //
+ // TODO: remove this workaround when CM standard will allow nested links
+ // (we can replace it by preventing links from being parsed in
+ // validation mode)
+ //
+ state.pos = state.posMax;
+ }
+ if (!ok) {
+ state.pos++;
+ }
+ cache[pos] = state.pos;
+};
+
+// Generate tokens for input range
+//
+ParserInline.prototype.tokenize = function (state) {
+ const rules = this.ruler.getRules('');
+ const len = rules.length;
+ const end = state.posMax;
+ const maxNesting = state.md.options.maxNesting;
+ while (state.pos < end) {
+ // Try all possible rules.
+ // On success, rule should:
+ //
+ // - update `state.pos`
+ // - update `state.tokens`
+ // - return true
+ const prevPos = state.pos;
+ let ok = false;
+ if (state.level < maxNesting) {
+ for (let i = 0; i < len; i++) {
+ ok = rules[i](state, false);
+ if (ok) {
+ if (prevPos >= state.pos) {
+ throw new Error("inline rule didn't increment state.pos");
+ }
+ break;
+ }
+ }
+ }
+ if (ok) {
+ if (state.pos >= end) {
+ break;
+ }
+ continue;
+ }
+ state.pending += state.src[state.pos++];
+ }
+ if (state.pending) {
+ state.pushPending();
+ }
+};
+
+/**
+ * ParserInline.parse(str, md, env, outTokens)
+ *
+ * Process input string and push inline tokens into `outTokens`
+ **/
+ParserInline.prototype.parse = function (str, md, env, outTokens) {
+ const state = new this.State(str, md, env, outTokens);
+ this.tokenize(state);
+ const rules = this.ruler2.getRules('');
+ const len = rules.length;
+ for (let i = 0; i < len; i++) {
+ rules[i](state);
+ }
+};
+ParserInline.prototype.State = StateInline;
+
+// markdown-it default options
+
+var cfg_default = {
+ options: {
+ // Enable HTML tags in source
+ html: false,
+ // Use '/' to close single tags (<br />)
+ xhtmlOut: false,
+ // Convert '\n' in paragraphs into <br>
+ breaks: false,
+ // CSS language prefix for fenced blocks
+ langPrefix: 'language-',
+ // autoconvert URL-like texts to links
+ linkify: false,
+ // Enable some language-neutral replacements + quotes beautification
+ typographer: false,
+ // Double + single quotes replacement pairs, when typographer enabled,
+ // and smartquotes on. Could be either a String or an Array.
+ //
+ // For example, you can use '«»„“' for Russian, '„“‚‘' for German,
+ // and ['«\xA0', '\xA0»', '‹\xA0', '\xA0›'] for French (including nbsp).
+ quotes: '\u201c\u201d\u2018\u2019',
+ /* “”‘’ */
+
+ // Highlighter function. Should return escaped HTML,
+ // or '' if the source string is not changed and should be escaped externaly.
+ // If result starts with <pre... internal wrapper is skipped.
+ //
+ // function (/*str, lang*/) { return ''; }
+ //
+ highlight: null,
+ // Internal protection, recursion limit
+ maxNesting: 100
+ },
+ components: {
+ core: {},
+ block: {},
+ inline: {}
+ }
+};
+
+// "Zero" preset, with nothing enabled. Useful for manual configuring of simple
+// modes. For example, to parse bold/italic only.
+
+var cfg_zero = {
+ options: {
+ // Enable HTML tags in source
+ html: false,
+ // Use '/' to close single tags (<br />)
+ xhtmlOut: false,
+ // Convert '\n' in paragraphs into <br>
+ breaks: false,
+ // CSS language prefix for fenced blocks
+ langPrefix: 'language-',
+ // autoconvert URL-like texts to links
+ linkify: false,
+ // Enable some language-neutral replacements + quotes beautification
+ typographer: false,
+ // Double + single quotes replacement pairs, when typographer enabled,
+ // and smartquotes on. Could be either a String or an Array.
+ //
+ // For example, you can use '«»„“' for Russian, '„“‚‘' for German,
+ // and ['«\xA0', '\xA0»', '‹\xA0', '\xA0›'] for French (including nbsp).
+ quotes: '\u201c\u201d\u2018\u2019',
+ /* “”‘’ */
+
+ // Highlighter function. Should return escaped HTML,
+ // or '' if the source string is not changed and should be escaped externaly.
+ // If result starts with <pre... internal wrapper is skipped.
+ //
+ // function (/*str, lang*/) { return ''; }
+ //
+ highlight: null,
+ // Internal protection, recursion limit
+ maxNesting: 20
+ },
+ components: {
+ core: {
+ rules: ['normalize', 'block', 'inline', 'text_join']
+ },
+ block: {
+ rules: ['paragraph']
+ },
+ inline: {
+ rules: ['text'],
+ rules2: ['balance_pairs', 'fragments_join']
+ }
+ }
+};
+
+// Commonmark default options
+
+var cfg_commonmark = {
+ options: {
+ // Enable HTML tags in source
+ html: true,
+ // Use '/' to close single tags (<br />)
+ xhtmlOut: true,
+ // Convert '\n' in paragraphs into <br>
+ breaks: false,
+ // CSS language prefix for fenced blocks
+ langPrefix: 'language-',
+ // autoconvert URL-like texts to links
+ linkify: false,
+ // Enable some language-neutral replacements + quotes beautification
+ typographer: false,
+ // Double + single quotes replacement pairs, when typographer enabled,
+ // and smartquotes on. Could be either a String or an Array.
+ //
+ // For example, you can use '«»„“' for Russian, '„“‚‘' for German,
+ // and ['«\xA0', '\xA0»', '‹\xA0', '\xA0›'] for French (including nbsp).
+ quotes: '\u201c\u201d\u2018\u2019',
+ /* “”‘’ */
+
+ // Highlighter function. Should return escaped HTML,
+ // or '' if the source string is not changed and should be escaped externaly.
+ // If result starts with <pre... internal wrapper is skipped.
+ //
+ // function (/*str, lang*/) { return ''; }
+ //
+ highlight: null,
+ // Internal protection, recursion limit
+ maxNesting: 20
+ },
+ components: {
+ core: {
+ rules: ['normalize', 'block', 'inline', 'text_join']
+ },
+ block: {
+ rules: ['blockquote', 'code', 'fence', 'heading', 'hr', 'html_block', 'lheading', 'list', 'reference', 'paragraph']
+ },
+ inline: {
+ rules: ['autolink', 'backticks', 'emphasis', 'entity', 'escape', 'html_inline', 'image', 'link', 'newline', 'text'],
+ rules2: ['balance_pairs', 'emphasis', 'fragments_join']
+ }
+ }
+};
+
+// Main parser class
+
+const config = {
+ default: cfg_default,
+ zero: cfg_zero,
+ commonmark: cfg_commonmark
+};
+
+//
+// This validator can prohibit more than really needed to prevent XSS. It's a
+// tradeoff to keep code simple and to be secure by default.
+//
+// If you need different setup - override validator method as you wish. Or
+// replace it with dummy function and use external sanitizer.
+//
+
+const BAD_PROTO_RE = /^(vbscript|javascript|file|data):/;
+const GOOD_DATA_RE = /^data:image\/(gif|png|jpeg|webp);/;
+function validateLink(url) {
+ // url should be normalized at this point, and existing entities are decoded
+ const str = url.trim().toLowerCase();
+ return BAD_PROTO_RE.test(str) ? GOOD_DATA_RE.test(str) : true;
+}
+const RECODE_HOSTNAME_FOR = ['http:', 'https:', 'mailto:'];
+function normalizeLink(url) {
+ const parsed = mdurl__namespace.parse(url, true);
+ if (parsed.hostname) {
+ // Encode hostnames in urls like:
+ // `http://host/`, `https://host/`, `mailto:user@host`, `//host/`
+ //
+ // We don't encode unknown schemas, because it's likely that we encode
+ // something we shouldn't (e.g. `skype:name` treated as `skype:host`)
+ //
+ if (!parsed.protocol || RECODE_HOSTNAME_FOR.indexOf(parsed.protocol) >= 0) {
+ try {
+ parsed.hostname = punycode.toASCII(parsed.hostname);
+ } catch (er) {/**/}
+ }
+ }
+ return mdurl__namespace.encode(mdurl__namespace.format(parsed));
+}
+function normalizeLinkText(url) {
+ const parsed = mdurl__namespace.parse(url, true);
+ if (parsed.hostname) {
+ // Encode hostnames in urls like:
+ // `http://host/`, `https://host/`, `mailto:user@host`, `//host/`
+ //
+ // We don't encode unknown schemas, because it's likely that we encode
+ // something we shouldn't (e.g. `skype:name` treated as `skype:host`)
+ //
+ if (!parsed.protocol || RECODE_HOSTNAME_FOR.indexOf(parsed.protocol) >= 0) {
+ try {
+ parsed.hostname = punycode.toUnicode(parsed.hostname);
+ } catch (er) {/**/}
+ }
+ }
+
+ // add '%' to exclude list because of https://github.com/markdown-it/markdown-it/issues/720
+ return mdurl__namespace.decode(mdurl__namespace.format(parsed), mdurl__namespace.decode.defaultChars + '%');
+}
+
+/**
+ * class MarkdownIt
+ *
+ * Main parser/renderer class.
+ *
+ * ##### Usage
+ *
+ * ```javascript
+ * // node.js, "classic" way:
+ * var MarkdownIt = require('markdown-it'),
+ * md = new MarkdownIt();
+ * var result = md.render('# markdown-it rulezz!');
+ *
+ * // node.js, the same, but with sugar:
+ * var md = require('markdown-it')();
+ * var result = md.render('# markdown-it rulezz!');
+ *
+ * // browser without AMD, added to "window" on script load
+ * // Note, there are no dash.
+ * var md = window.markdownit();
+ * var result = md.render('# markdown-it rulezz!');
+ * ```
+ *
+ * Single line rendering, without paragraph wrap:
+ *
+ * ```javascript
+ * var md = require('markdown-it')();
+ * var result = md.renderInline('__markdown-it__ rulezz!');
+ * ```
+ **/
+
+/**
+ * new MarkdownIt([presetName, options])
+ * - presetName (String): optional, `commonmark` / `zero`
+ * - options (Object)
+ *
+ * Creates parser instanse with given config. Can be called without `new`.
+ *
+ * ##### presetName
+ *
+ * MarkdownIt provides named presets as a convenience to quickly
+ * enable/disable active syntax rules and options for common use cases.
+ *
+ * - ["commonmark"](https://github.com/markdown-it/markdown-it/blob/master/lib/presets/commonmark.mjs) -
+ * configures parser to strict [CommonMark](http://commonmark.org/) mode.
+ * - [default](https://github.com/markdown-it/markdown-it/blob/master/lib/presets/default.mjs) -
+ * similar to GFM, used when no preset name given. Enables all available rules,
+ * but still without html, typographer & autolinker.
+ * - ["zero"](https://github.com/markdown-it/markdown-it/blob/master/lib/presets/zero.mjs) -
+ * all rules disabled. Useful to quickly setup your config via `.enable()`.
+ * For example, when you need only `bold` and `italic` markup and nothing else.
+ *
+ * ##### options:
+ *
+ * - __html__ - `false`. Set `true` to enable HTML tags in source. Be careful!
+ * That's not safe! You may need external sanitizer to protect output from XSS.
+ * It's better to extend features via plugins, instead of enabling HTML.
+ * - __xhtmlOut__ - `false`. Set `true` to add '/' when closing single tags
+ * (`<br />`). This is needed only for full CommonMark compatibility. In real
+ * world you will need HTML output.
+ * - __breaks__ - `false`. Set `true` to convert `\n` in paragraphs into `<br>`.
+ * - __langPrefix__ - `language-`. CSS language class prefix for fenced blocks.
+ * Can be useful for external highlighters.
+ * - __linkify__ - `false`. Set `true` to autoconvert URL-like text to links.
+ * - __typographer__ - `false`. Set `true` to enable [some language-neutral
+ * replacement](https://github.com/markdown-it/markdown-it/blob/master/lib/rules_core/replacements.mjs) +
+ * quotes beautification (smartquotes).
+ * - __quotes__ - `“”‘’`, String or Array. Double + single quotes replacement
+ * pairs, when typographer enabled and smartquotes on. For example, you can
+ * use `'«»„“'` for Russian, `'„“‚‘'` for German, and
+ * `['«\xA0', '\xA0»', '‹\xA0', '\xA0›']` for French (including nbsp).
+ * - __highlight__ - `null`. Highlighter function for fenced code blocks.
+ * Highlighter `function (str, lang)` should return escaped HTML. It can also
+ * return empty string if the source was not changed and should be escaped
+ * externaly. If result starts with <pre... internal wrapper is skipped.
+ *
+ * ##### Example
+ *
+ * ```javascript
+ * // commonmark mode
+ * var md = require('markdown-it')('commonmark');
+ *
+ * // default mode
+ * var md = require('markdown-it')();
+ *
+ * // enable everything
+ * var md = require('markdown-it')({
+ * html: true,
+ * linkify: true,
+ * typographer: true
+ * });
+ * ```
+ *
+ * ##### Syntax highlighting
+ *
+ * ```js
+ * var hljs = require('highlight.js') // https://highlightjs.org/
+ *
+ * var md = require('markdown-it')({
+ * highlight: function (str, lang) {
+ * if (lang && hljs.getLanguage(lang)) {
+ * try {
+ * return hljs.highlight(str, { language: lang, ignoreIllegals: true }).value;
+ * } catch (__) {}
+ * }
+ *
+ * return ''; // use external default escaping
+ * }
+ * });
+ * ```
+ *
+ * Or with full wrapper override (if you need assign class to `<pre>` or `<code>`):
+ *
+ * ```javascript
+ * var hljs = require('highlight.js') // https://highlightjs.org/
+ *
+ * // Actual default values
+ * var md = require('markdown-it')({
+ * highlight: function (str, lang) {
+ * if (lang && hljs.getLanguage(lang)) {
+ * try {
+ * return '<pre><code class="hljs">' +
+ * hljs.highlight(str, { language: lang, ignoreIllegals: true }).value +
+ * '</code></pre>';
+ * } catch (__) {}
+ * }
+ *
+ * return '<pre><code class="hljs">' + md.utils.escapeHtml(str) + '</code></pre>';
+ * }
+ * });
+ * ```
+ *
+ **/
+function MarkdownIt(presetName, options) {
+ if (!(this instanceof MarkdownIt)) {
+ return new MarkdownIt(presetName, options);
+ }
+ if (!options) {
+ if (!isString(presetName)) {
+ options = presetName || {};
+ presetName = 'default';
+ }
+ }
+
+ /**
+ * MarkdownIt#inline -> ParserInline
+ *
+ * Instance of [[ParserInline]]. You may need it to add new rules when
+ * writing plugins. For simple rules control use [[MarkdownIt.disable]] and
+ * [[MarkdownIt.enable]].
+ **/
+ this.inline = new ParserInline();
+
+ /**
+ * MarkdownIt#block -> ParserBlock
+ *
+ * Instance of [[ParserBlock]]. You may need it to add new rules when
+ * writing plugins. For simple rules control use [[MarkdownIt.disable]] and
+ * [[MarkdownIt.enable]].
+ **/
+ this.block = new ParserBlock();
+
+ /**
+ * MarkdownIt#core -> Core
+ *
+ * Instance of [[Core]] chain executor. You may need it to add new rules when
+ * writing plugins. For simple rules control use [[MarkdownIt.disable]] and
+ * [[MarkdownIt.enable]].
+ **/
+ this.core = new Core();
+
+ /**
+ * MarkdownIt#renderer -> Renderer
+ *
+ * Instance of [[Renderer]]. Use it to modify output look. Or to add rendering
+ * rules for new token types, generated by plugins.
+ *
+ * ##### Example
+ *
+ * ```javascript
+ * var md = require('markdown-it')();
+ *
+ * function myToken(tokens, idx, options, env, self) {
+ * //...
+ * return result;
+ * };
+ *
+ * md.renderer.rules['my_token'] = myToken
+ * ```
+ *
+ * See [[Renderer]] docs and [source code](https://github.com/markdown-it/markdown-it/blob/master/lib/renderer.mjs).
+ **/
+ this.renderer = new Renderer();
+
+ /**
+ * MarkdownIt#linkify -> LinkifyIt
+ *
+ * [linkify-it](https://github.com/markdown-it/linkify-it) instance.
+ * Used by [linkify](https://github.com/markdown-it/markdown-it/blob/master/lib/rules_core/linkify.mjs)
+ * rule.
+ **/
+ this.linkify = new LinkifyIt();
+
+ /**
+ * MarkdownIt#validateLink(url) -> Boolean
+ *
+ * Link validation function. CommonMark allows too much in links. By default
+ * we disable `javascript:`, `vbscript:`, `file:` schemas, and almost all `data:...` schemas
+ * except some embedded image types.
+ *
+ * You can change this behaviour:
+ *
+ * ```javascript
+ * var md = require('markdown-it')();
+ * // enable everything
+ * md.validateLink = function () { return true; }
+ * ```
+ **/
+ this.validateLink = validateLink;
+
+ /**
+ * MarkdownIt#normalizeLink(url) -> String
+ *
+ * Function used to encode link url to a machine-readable format,
+ * which includes url-encoding, punycode, etc.
+ **/
+ this.normalizeLink = normalizeLink;
+
+ /**
+ * MarkdownIt#normalizeLinkText(url) -> String
+ *
+ * Function used to decode link url to a human-readable format`
+ **/
+ this.normalizeLinkText = normalizeLinkText;
+
+ // Expose utils & helpers for easy acces from plugins
+
+ /**
+ * MarkdownIt#utils -> utils
+ *
+ * Assorted utility functions, useful to write plugins. See details
+ * [here](https://github.com/markdown-it/markdown-it/blob/master/lib/common/utils.mjs).
+ **/
+ this.utils = utils;
+
+ /**
+ * MarkdownIt#helpers -> helpers
+ *
+ * Link components parser functions, useful to write plugins. See details
+ * [here](https://github.com/markdown-it/markdown-it/blob/master/lib/helpers).
+ **/
+ this.helpers = assign({}, helpers);
+ this.options = {};
+ this.configure(presetName);
+ if (options) {
+ this.set(options);
+ }
+}
+
+/** chainable
+ * MarkdownIt.set(options)
+ *
+ * Set parser options (in the same format as in constructor). Probably, you
+ * will never need it, but you can change options after constructor call.
+ *
+ * ##### Example
+ *
+ * ```javascript
+ * var md = require('markdown-it')()
+ * .set({ html: true, breaks: true })
+ * .set({ typographer, true });
+ * ```
+ *
+ * __Note:__ To achieve the best possible performance, don't modify a
+ * `markdown-it` instance options on the fly. If you need multiple configurations
+ * it's best to create multiple instances and initialize each with separate
+ * config.
+ **/
+MarkdownIt.prototype.set = function (options) {
+ assign(this.options, options);
+ return this;
+};
+
+/** chainable, internal
+ * MarkdownIt.configure(presets)
+ *
+ * Batch load of all options and compenent settings. This is internal method,
+ * and you probably will not need it. But if you will - see available presets
+ * and data structure [here](https://github.com/markdown-it/markdown-it/tree/master/lib/presets)
+ *
+ * We strongly recommend to use presets instead of direct config loads. That
+ * will give better compatibility with next versions.
+ **/
+MarkdownIt.prototype.configure = function (presets) {
+ const self = this;
+ if (isString(presets)) {
+ const presetName = presets;
+ presets = config[presetName];
+ if (!presets) {
+ throw new Error('Wrong `markdown-it` preset "' + presetName + '", check name');
+ }
+ }
+ if (!presets) {
+ throw new Error('Wrong `markdown-it` preset, can\'t be empty');
+ }
+ if (presets.options) {
+ self.set(presets.options);
+ }
+ if (presets.components) {
+ Object.keys(presets.components).forEach(function (name) {
+ if (presets.components[name].rules) {
+ self[name].ruler.enableOnly(presets.components[name].rules);
+ }
+ if (presets.components[name].rules2) {
+ self[name].ruler2.enableOnly(presets.components[name].rules2);
+ }
+ });
+ }
+ return this;
+};
+
+/** chainable
+ * MarkdownIt.enable(list, ignoreInvalid)
+ * - list (String|Array): rule name or list of rule names to enable
+ * - ignoreInvalid (Boolean): set `true` to ignore errors when rule not found.
+ *
+ * Enable list or rules. It will automatically find appropriate components,
+ * containing rules with given names. If rule not found, and `ignoreInvalid`
+ * not set - throws exception.
+ *
+ * ##### Example
+ *
+ * ```javascript
+ * var md = require('markdown-it')()
+ * .enable(['sub', 'sup'])
+ * .disable('smartquotes');
+ * ```
+ **/
+MarkdownIt.prototype.enable = function (list, ignoreInvalid) {
+ let result = [];
+ if (!Array.isArray(list)) {
+ list = [list];
+ }
+ ['core', 'block', 'inline'].forEach(function (chain) {
+ result = result.concat(this[chain].ruler.enable(list, true));
+ }, this);
+ result = result.concat(this.inline.ruler2.enable(list, true));
+ const missed = list.filter(function (name) {
+ return result.indexOf(name) < 0;
+ });
+ if (missed.length && !ignoreInvalid) {
+ throw new Error('MarkdownIt. Failed to enable unknown rule(s): ' + missed);
+ }
+ return this;
+};
+
+/** chainable
+ * MarkdownIt.disable(list, ignoreInvalid)
+ * - list (String|Array): rule name or list of rule names to disable.
+ * - ignoreInvalid (Boolean): set `true` to ignore errors when rule not found.
+ *
+ * The same as [[MarkdownIt.enable]], but turn specified rules off.
+ **/
+MarkdownIt.prototype.disable = function (list, ignoreInvalid) {
+ let result = [];
+ if (!Array.isArray(list)) {
+ list = [list];
+ }
+ ['core', 'block', 'inline'].forEach(function (chain) {
+ result = result.concat(this[chain].ruler.disable(list, true));
+ }, this);
+ result = result.concat(this.inline.ruler2.disable(list, true));
+ const missed = list.filter(function (name) {
+ return result.indexOf(name) < 0;
+ });
+ if (missed.length && !ignoreInvalid) {
+ throw new Error('MarkdownIt. Failed to disable unknown rule(s): ' + missed);
+ }
+ return this;
+};
+
+/** chainable
+ * MarkdownIt.use(plugin, params)
+ *
+ * Load specified plugin with given params into current parser instance.
+ * It's just a sugar to call `plugin(md, params)` with curring.
+ *
+ * ##### Example
+ *
+ * ```javascript
+ * var iterator = require('markdown-it-for-inline');
+ * var md = require('markdown-it')()
+ * .use(iterator, 'foo_replace', 'text', function (tokens, idx) {
+ * tokens[idx].content = tokens[idx].content.replace(/foo/g, 'bar');
+ * });
+ * ```
+ **/
+MarkdownIt.prototype.use = function (plugin /*, params, ... */) {
+ const args = [this].concat(Array.prototype.slice.call(arguments, 1));
+ plugin.apply(plugin, args);
+ return this;
+};
+
+/** internal
+ * MarkdownIt.parse(src, env) -> Array
+ * - src (String): source string
+ * - env (Object): environment sandbox
+ *
+ * Parse input string and return list of block tokens (special token type
+ * "inline" will contain list of inline tokens). You should not call this
+ * method directly, until you write custom renderer (for example, to produce
+ * AST).
+ *
+ * `env` is used to pass data between "distributed" rules and return additional
+ * metadata like reference info, needed for the renderer. It also can be used to
+ * inject data in specific cases. Usually, you will be ok to pass `{}`,
+ * and then pass updated object to renderer.
+ **/
+MarkdownIt.prototype.parse = function (src, env) {
+ if (typeof src !== 'string') {
+ throw new Error('Input data should be a String');
+ }
+ const state = new this.core.State(src, this, env);
+ this.core.process(state);
+ return state.tokens;
+};
+
+/**
+ * MarkdownIt.render(src [, env]) -> String
+ * - src (String): source string
+ * - env (Object): environment sandbox
+ *
+ * Render markdown string into html. It does all magic for you :).
+ *
+ * `env` can be used to inject additional metadata (`{}` by default).
+ * But you will not need it with high probability. See also comment
+ * in [[MarkdownIt.parse]].
+ **/
+MarkdownIt.prototype.render = function (src, env) {
+ env = env || {};
+ return this.renderer.render(this.parse(src, env), this.options, env);
+};
+
+/** internal
+ * MarkdownIt.parseInline(src, env) -> Array
+ * - src (String): source string
+ * - env (Object): environment sandbox
+ *
+ * The same as [[MarkdownIt.parse]] but skip all block rules. It returns the
+ * block tokens list with the single `inline` element, containing parsed inline
+ * tokens in `children` property. Also updates `env` object.
+ **/
+MarkdownIt.prototype.parseInline = function (src, env) {
+ const state = new this.core.State(src, this, env);
+ state.inlineMode = true;
+ this.core.process(state);
+ return state.tokens;
+};
+
+/**
+ * MarkdownIt.renderInline(src [, env]) -> String
+ * - src (String): source string
+ * - env (Object): environment sandbox
+ *
+ * Similar to [[MarkdownIt.render]] but for single paragraph content. Result
+ * will NOT be wrapped into `<p>` tags.
+ **/
+MarkdownIt.prototype.renderInline = function (src, env) {
+ env = env || {};
+ return this.renderer.render(this.parseInline(src, env), this.options, env);
+};
+
+module.exports = MarkdownIt;
diff --git a/packages/markdown-it-14.1.0/dist/markdown-it.js b/packages/markdown-it-14.1.0/dist/markdown-it.js
new file mode 100644
index 0000000..3a9d89c
--- /dev/null
+++ b/packages/markdown-it-14.1.0/dist/markdown-it.js
@@ -0,0 +1,6963 @@
+/*! markdown-it 14.1.0 https://github.com/markdown-it/markdown-it @license MIT */
+(function(global, factory) {
+ typeof exports === "object" && typeof module !== "undefined" ? module.exports = factory() : typeof define === "function" && define.amd ? define(factory) : (global = typeof globalThis !== "undefined" ? globalThis : global || self,
+ global.markdownit = factory());
+})(this, (function() {
+ "use strict";
+ /* eslint-disable no-bitwise */ const decodeCache = {};
+ function getDecodeCache(exclude) {
+ let cache = decodeCache[exclude];
+ if (cache) {
+ return cache;
+ }
+ cache = decodeCache[exclude] = [];
+ for (let i = 0; i < 128; i++) {
+ const ch = String.fromCharCode(i);
+ cache.push(ch);
+ }
+ for (let i = 0; i < exclude.length; i++) {
+ const ch = exclude.charCodeAt(i);
+ cache[ch] = "%" + ("0" + ch.toString(16).toUpperCase()).slice(-2);
+ }
+ return cache;
+ }
+ // Decode percent-encoded string.
+
+ function decode$1(string, exclude) {
+ if (typeof exclude !== "string") {
+ exclude = decode$1.defaultChars;
+ }
+ const cache = getDecodeCache(exclude);
+ return string.replace(/(%[a-f0-9]{2})+/gi, (function(seq) {
+ let result = "";
+ for (let i = 0, l = seq.length; i < l; i += 3) {
+ const b1 = parseInt(seq.slice(i + 1, i + 3), 16);
+ if (b1 < 128) {
+ result += cache[b1];
+ continue;
+ }
+ if ((b1 & 224) === 192 && i + 3 < l) {
+ // 110xxxxx 10xxxxxx
+ const b2 = parseInt(seq.slice(i + 4, i + 6), 16);
+ if ((b2 & 192) === 128) {
+ const chr = b1 << 6 & 1984 | b2 & 63;
+ if (chr < 128) {
+ result += "\ufffd\ufffd";
+ } else {
+ result += String.fromCharCode(chr);
+ }
+ i += 3;
+ continue;
+ }
+ }
+ if ((b1 & 240) === 224 && i + 6 < l) {
+ // 1110xxxx 10xxxxxx 10xxxxxx
+ const b2 = parseInt(seq.slice(i + 4, i + 6), 16);
+ const b3 = parseInt(seq.slice(i + 7, i + 9), 16);
+ if ((b2 & 192) === 128 && (b3 & 192) === 128) {
+ const chr = b1 << 12 & 61440 | b2 << 6 & 4032 | b3 & 63;
+ if (chr < 2048 || chr >= 55296 && chr <= 57343) {
+ result += "\ufffd\ufffd\ufffd";
+ } else {
+ result += String.fromCharCode(chr);
+ }
+ i += 6;
+ continue;
+ }
+ }
+ if ((b1 & 248) === 240 && i + 9 < l) {
+ // 111110xx 10xxxxxx 10xxxxxx 10xxxxxx
+ const b2 = parseInt(seq.slice(i + 4, i + 6), 16);
+ const b3 = parseInt(seq.slice(i + 7, i + 9), 16);
+ const b4 = parseInt(seq.slice(i + 10, i + 12), 16);
+ if ((b2 & 192) === 128 && (b3 & 192) === 128 && (b4 & 192) === 128) {
+ let chr = b1 << 18 & 1835008 | b2 << 12 & 258048 | b3 << 6 & 4032 | b4 & 63;
+ if (chr < 65536 || chr > 1114111) {
+ result += "\ufffd\ufffd\ufffd\ufffd";
+ } else {
+ chr -= 65536;
+ result += String.fromCharCode(55296 + (chr >> 10), 56320 + (chr & 1023));
+ }
+ i += 9;
+ continue;
+ }
+ }
+ result += "\ufffd";
+ }
+ return result;
+ }));
+ }
+ decode$1.defaultChars = ";/?:@&=+$,#";
+ decode$1.componentChars = "";
+ const encodeCache = {};
+ // Create a lookup array where anything but characters in `chars` string
+ // and alphanumeric chars is percent-encoded.
+
+ function getEncodeCache(exclude) {
+ let cache = encodeCache[exclude];
+ if (cache) {
+ return cache;
+ }
+ cache = encodeCache[exclude] = [];
+ for (let i = 0; i < 128; i++) {
+ const ch = String.fromCharCode(i);
+ if (/^[0-9a-z]$/i.test(ch)) {
+ // always allow unencoded alphanumeric characters
+ cache.push(ch);
+ } else {
+ cache.push("%" + ("0" + i.toString(16).toUpperCase()).slice(-2));
+ }
+ }
+ for (let i = 0; i < exclude.length; i++) {
+ cache[exclude.charCodeAt(i)] = exclude[i];
+ }
+ return cache;
+ }
+ // Encode unsafe characters with percent-encoding, skipping already
+ // encoded sequences.
+
+ // - string - string to encode
+ // - exclude - list of characters to ignore (in addition to a-zA-Z0-9)
+ // - keepEscaped - don't encode '%' in a correct escape sequence (default: true)
+
+ function encode$1(string, exclude, keepEscaped) {
+ if (typeof exclude !== "string") {
+ // encode(string, keepEscaped)
+ keepEscaped = exclude;
+ exclude = encode$1.defaultChars;
+ }
+ if (typeof keepEscaped === "undefined") {
+ keepEscaped = true;
+ }
+ const cache = getEncodeCache(exclude);
+ let result = "";
+ for (let i = 0, l = string.length; i < l; i++) {
+ const code = string.charCodeAt(i);
+ if (keepEscaped && code === 37 /* % */ && i + 2 < l) {
+ if (/^[0-9a-f]{2}$/i.test(string.slice(i + 1, i + 3))) {
+ result += string.slice(i, i + 3);
+ i += 2;
+ continue;
+ }
+ }
+ if (code < 128) {
+ result += cache[code];
+ continue;
+ }
+ if (code >= 55296 && code <= 57343) {
+ if (code >= 55296 && code <= 56319 && i + 1 < l) {
+ const nextCode = string.charCodeAt(i + 1);
+ if (nextCode >= 56320 && nextCode <= 57343) {
+ result += encodeURIComponent(string[i] + string[i + 1]);
+ i++;
+ continue;
+ }
+ }
+ result += "%EF%BF%BD";
+ continue;
+ }
+ result += encodeURIComponent(string[i]);
+ }
+ return result;
+ }
+ encode$1.defaultChars = ";/?:@&=+$,-_.!~*'()#";
+ encode$1.componentChars = "-_.!~*'()";
+ function format(url) {
+ let result = "";
+ result += url.protocol || "";
+ result += url.slashes ? "//" : "";
+ result += url.auth ? url.auth + "@" : "";
+ if (url.hostname && url.hostname.indexOf(":") !== -1) {
+ // ipv6 address
+ result += "[" + url.hostname + "]";
+ } else {
+ result += url.hostname || "";
+ }
+ result += url.port ? ":" + url.port : "";
+ result += url.pathname || "";
+ result += url.search || "";
+ result += url.hash || "";
+ return result;
+ }
+ // Copyright Joyent, Inc. and other Node contributors.
+
+ // Permission is hereby granted, free of charge, to any person obtaining a
+ // copy of this software and associated documentation files (the
+ // "Software"), to deal in the Software without restriction, including
+ // without limitation the rights to use, copy, modify, merge, publish,
+ // distribute, sublicense, and/or sell copies of the Software, and to permit
+ // persons to whom the Software is furnished to do so, subject to the
+ // following conditions:
+
+ // The above copyright notice and this permission notice shall be included
+ // in all copies or substantial portions of the Software.
+
+ // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ // OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+ // NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ // DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ // OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ // USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+ // Changes from joyent/node:
+
+ // 1. No leading slash in paths,
+ // e.g. in `url.parse('http://foo?bar')` pathname is ``, not `/`
+
+ // 2. Backslashes are not replaced with slashes,
+ // so `http:\\example.org\` is treated like a relative path
+
+ // 3. Trailing colon is treated like a part of the path,
+ // i.e. in `http://example.org:foo` pathname is `:foo`
+
+ // 4. Nothing is URL-encoded in the resulting object,
+ // (in joyent/node some chars in auth and paths are encoded)
+
+ // 5. `url.parse()` does not have `parseQueryString` argument
+
+ // 6. Removed extraneous result properties: `host`, `path`, `query`, etc.,
+ // which can be constructed using other parts of the url.
+
+ function Url() {
+ this.protocol = null;
+ this.slashes = null;
+ this.auth = null;
+ this.port = null;
+ this.hostname = null;
+ this.hash = null;
+ this.search = null;
+ this.pathname = null;
+ }
+ // Reference: RFC 3986, RFC 1808, RFC 2396
+ // define these here so at least they only have to be
+ // compiled once on the first module load.
+ const protocolPattern = /^([a-z0-9.+-]+:)/i;
+ const portPattern = /:[0-9]*$/;
+ // Special case for a simple path URL
+ /* eslint-disable-next-line no-useless-escape */ const simplePathPattern = /^(\/\/?(?!\/)[^\?\s]*)(\?[^\s]*)?$/;
+ // RFC 2396: characters reserved for delimiting URLs.
+ // We actually just auto-escape these.
+ const delims = [ "<", ">", '"', "`", " ", "\r", "\n", "\t" ];
+ // RFC 2396: characters not allowed for various reasons.
+ const unwise = [ "{", "}", "|", "\\", "^", "`" ].concat(delims);
+ // Allowed by RFCs, but cause of XSS attacks. Always escape these.
+ const autoEscape = [ "'" ].concat(unwise);
+ // Characters that are never ever allowed in a hostname.
+ // Note that any invalid chars are also handled, but these
+ // are the ones that are *expected* to be seen, so we fast-path
+ // them.
+ const nonHostChars = [ "%", "/", "?", ";", "#" ].concat(autoEscape);
+ const hostEndingChars = [ "/", "?", "#" ];
+ const hostnameMaxLen = 255;
+ const hostnamePartPattern = /^[+a-z0-9A-Z_-]{0,63}$/;
+ const hostnamePartStart = /^([+a-z0-9A-Z_-]{0,63})(.*)$/;
+ // protocols that can allow "unsafe" and "unwise" chars.
+ // protocols that never have a hostname.
+ const hostlessProtocol = {
+ javascript: true,
+ "javascript:": true
+ };
+ // protocols that always contain a // bit.
+ const slashedProtocol = {
+ http: true,
+ https: true,
+ ftp: true,
+ gopher: true,
+ file: true,
+ "http:": true,
+ "https:": true,
+ "ftp:": true,
+ "gopher:": true,
+ "file:": true
+ };
+ function urlParse(url, slashesDenoteHost) {
+ if (url && url instanceof Url) return url;
+ const u = new Url;
+ u.parse(url, slashesDenoteHost);
+ return u;
+ }
+ Url.prototype.parse = function(url, slashesDenoteHost) {
+ let lowerProto, hec, slashes;
+ let rest = url;
+ // trim before proceeding.
+ // This is to support parse stuff like " http://foo.com \n"
+ rest = rest.trim();
+ if (!slashesDenoteHost && url.split("#").length === 1) {
+ // Try fast path regexp
+ const simplePath = simplePathPattern.exec(rest);
+ if (simplePath) {
+ this.pathname = simplePath[1];
+ if (simplePath[2]) {
+ this.search = simplePath[2];
+ }
+ return this;
+ }
+ }
+ let proto = protocolPattern.exec(rest);
+ if (proto) {
+ proto = proto[0];
+ lowerProto = proto.toLowerCase();
+ this.protocol = proto;
+ rest = rest.substr(proto.length);
+ }
+ // figure out if it's got a host
+ // user@server is *always* interpreted as a hostname, and url
+ // resolution will treat //foo/bar as host=foo,path=bar because that's
+ // how the browser resolves relative URLs.
+ /* eslint-disable-next-line no-useless-escape */ if (slashesDenoteHost || proto || rest.match(/^\/\/[^@\/]+@[^@\/]+/)) {
+ slashes = rest.substr(0, 2) === "//";
+ if (slashes && !(proto && hostlessProtocol[proto])) {
+ rest = rest.substr(2);
+ this.slashes = true;
+ }
+ }
+ if (!hostlessProtocol[proto] && (slashes || proto && !slashedProtocol[proto])) {
+ // there's a hostname.
+ // the first instance of /, ?, ;, or # ends the host.
+ // If there is an @ in the hostname, then non-host chars *are* allowed
+ // to the left of the last @ sign, unless some host-ending character
+ // comes *before* the @-sign.
+ // URLs are obnoxious.
+ // ex:
+ // http://a@b@c/ => user:a@b host:c
+ // http://a@b?@c => user:a host:c path:/?@c
+ // v0.12 TODO(isaacs): This is not quite how Chrome does things.
+ // Review our test case against browsers more comprehensively.
+ // find the first instance of any hostEndingChars
+ let hostEnd = -1;
+ for (let i = 0; i < hostEndingChars.length; i++) {
+ hec = rest.indexOf(hostEndingChars[i]);
+ if (hec !== -1 && (hostEnd === -1 || hec < hostEnd)) {
+ hostEnd = hec;
+ }
+ }
+ // at this point, either we have an explicit point where the
+ // auth portion cannot go past, or the last @ char is the decider.
+ let auth, atSign;
+ if (hostEnd === -1) {
+ // atSign can be anywhere.
+ atSign = rest.lastIndexOf("@");
+ } else {
+ // atSign must be in auth portion.
+ // http://a@b/c@d => host:b auth:a path:/c@d
+ atSign = rest.lastIndexOf("@", hostEnd);
+ }
+ // Now we have a portion which is definitely the auth.
+ // Pull that off.
+ if (atSign !== -1) {
+ auth = rest.slice(0, atSign);
+ rest = rest.slice(atSign + 1);
+ this.auth = auth;
+ }
+ // the host is the remaining to the left of the first non-host char
+ hostEnd = -1;
+ for (let i = 0; i < nonHostChars.length; i++) {
+ hec = rest.indexOf(nonHostChars[i]);
+ if (hec !== -1 && (hostEnd === -1 || hec < hostEnd)) {
+ hostEnd = hec;
+ }
+ }
+ // if we still have not hit it, then the entire thing is a host.
+ if (hostEnd === -1) {
+ hostEnd = rest.length;
+ }
+ if (rest[hostEnd - 1] === ":") {
+ hostEnd--;
+ }
+ const host = rest.slice(0, hostEnd);
+ rest = rest.slice(hostEnd);
+ // pull out port.
+ this.parseHost(host);
+ // we've indicated that there is a hostname,
+ // so even if it's empty, it has to be present.
+ this.hostname = this.hostname || "";
+ // if hostname begins with [ and ends with ]
+ // assume that it's an IPv6 address.
+ const ipv6Hostname = this.hostname[0] === "[" && this.hostname[this.hostname.length - 1] === "]";
+ // validate a little.
+ if (!ipv6Hostname) {
+ const hostparts = this.hostname.split(/\./);
+ for (let i = 0, l = hostparts.length; i < l; i++) {
+ const part = hostparts[i];
+ if (!part) {
+ continue;
+ }
+ if (!part.match(hostnamePartPattern)) {
+ let newpart = "";
+ for (let j = 0, k = part.length; j < k; j++) {
+ if (part.charCodeAt(j) > 127) {
+ // we replace non-ASCII char with a temporary placeholder
+ // we need this to make sure size of hostname is not
+ // broken by replacing non-ASCII by nothing
+ newpart += "x";
+ } else {
+ newpart += part[j];
+ }
+ }
+ // we test again with ASCII char only
+ if (!newpart.match(hostnamePartPattern)) {
+ const validParts = hostparts.slice(0, i);
+ const notHost = hostparts.slice(i + 1);
+ const bit = part.match(hostnamePartStart);
+ if (bit) {
+ validParts.push(bit[1]);
+ notHost.unshift(bit[2]);
+ }
+ if (notHost.length) {
+ rest = notHost.join(".") + rest;
+ }
+ this.hostname = validParts.join(".");
+ break;
+ }
+ }
+ }
+ }
+ if (this.hostname.length > hostnameMaxLen) {
+ this.hostname = "";
+ }
+ // strip [ and ] from the hostname
+ // the host field still retains them, though
+ if (ipv6Hostname) {
+ this.hostname = this.hostname.substr(1, this.hostname.length - 2);
+ }
+ }
+ // chop off from the tail first.
+ const hash = rest.indexOf("#");
+ if (hash !== -1) {
+ // got a fragment string.
+ this.hash = rest.substr(hash);
+ rest = rest.slice(0, hash);
+ }
+ const qm = rest.indexOf("?");
+ if (qm !== -1) {
+ this.search = rest.substr(qm);
+ rest = rest.slice(0, qm);
+ }
+ if (rest) {
+ this.pathname = rest;
+ }
+ if (slashedProtocol[lowerProto] && this.hostname && !this.pathname) {
+ this.pathname = "";
+ }
+ return this;
+ };
+ Url.prototype.parseHost = function(host) {
+ let port = portPattern.exec(host);
+ if (port) {
+ port = port[0];
+ if (port !== ":") {
+ this.port = port.substr(1);
+ }
+ host = host.substr(0, host.length - port.length);
+ }
+ if (host) {
+ this.hostname = host;
+ }
+ };
+ var mdurl = Object.freeze({
+ __proto__: null,
+ decode: decode$1,
+ encode: encode$1,
+ format: format,
+ parse: urlParse
+ });
+ var Any = /[\0-\uD7FF\uE000-\uFFFF]|[\uD800-\uDBFF][\uDC00-\uDFFF]|[\uD800-\uDBFF](?![\uDC00-\uDFFF])|(?:[^\uD800-\uDBFF]|^)[\uDC00-\uDFFF]/;
+ var Cc = /[\0-\x1F\x7F-\x9F]/;
+ var regex$1 = /[\xAD\u0600-\u0605\u061C\u06DD\u070F\u0890\u0891\u08E2\u180E\u200B-\u200F\u202A-\u202E\u2060-\u2064\u2066-\u206F\uFEFF\uFFF9-\uFFFB]|\uD804[\uDCBD\uDCCD]|\uD80D[\uDC30-\uDC3F]|\uD82F[\uDCA0-\uDCA3]|\uD834[\uDD73-\uDD7A]|\uDB40[\uDC01\uDC20-\uDC7F]/;
+ var P = /[!-#%-\*,-\/:;\?@\[-\]_\{\}\xA1\xA7\xAB\xB6\xB7\xBB\xBF\u037E\u0387\u055A-\u055F\u0589\u058A\u05BE\u05C0\u05C3\u05C6\u05F3\u05F4\u0609\u060A\u060C\u060D\u061B\u061D-\u061F\u066A-\u066D\u06D4\u0700-\u070D\u07F7-\u07F9\u0830-\u083E\u085E\u0964\u0965\u0970\u09FD\u0A76\u0AF0\u0C77\u0C84\u0DF4\u0E4F\u0E5A\u0E5B\u0F04-\u0F12\u0F14\u0F3A-\u0F3D\u0F85\u0FD0-\u0FD4\u0FD9\u0FDA\u104A-\u104F\u10FB\u1360-\u1368\u1400\u166E\u169B\u169C\u16EB-\u16ED\u1735\u1736\u17D4-\u17D6\u17D8-\u17DA\u1800-\u180A\u1944\u1945\u1A1E\u1A1F\u1AA0-\u1AA6\u1AA8-\u1AAD\u1B5A-\u1B60\u1B7D\u1B7E\u1BFC-\u1BFF\u1C3B-\u1C3F\u1C7E\u1C7F\u1CC0-\u1CC7\u1CD3\u2010-\u2027\u2030-\u2043\u2045-\u2051\u2053-\u205E\u207D\u207E\u208D\u208E\u2308-\u230B\u2329\u232A\u2768-\u2775\u27C5\u27C6\u27E6-\u27EF\u2983-\u2998\u29D8-\u29DB\u29FC\u29FD\u2CF9-\u2CFC\u2CFE\u2CFF\u2D70\u2E00-\u2E2E\u2E30-\u2E4F\u2E52-\u2E5D\u3001-\u3003\u3008-\u3011\u3014-\u301F\u3030\u303D\u30A0\u30FB\uA4FE\uA4FF\uA60D-\uA60F\uA673\uA67E\uA6F2-\uA6F7\uA874-\uA877\uA8CE\uA8CF\uA8F8-\uA8FA\uA8FC\uA92E\uA92F\uA95F\uA9C1-\uA9CD\uA9DE\uA9DF\uAA5C-\uAA5F\uAADE\uAADF\uAAF0\uAAF1\uABEB\uFD3E\uFD3F\uFE10-\uFE19\uFE30-\uFE52\uFE54-\uFE61\uFE63\uFE68\uFE6A\uFE6B\uFF01-\uFF03\uFF05-\uFF0A\uFF0C-\uFF0F\uFF1A\uFF1B\uFF1F\uFF20\uFF3B-\uFF3D\uFF3F\uFF5B\uFF5D\uFF5F-\uFF65]|\uD800[\uDD00-\uDD02\uDF9F\uDFD0]|\uD801\uDD6F|\uD802[\uDC57\uDD1F\uDD3F\uDE50-\uDE58\uDE7F\uDEF0-\uDEF6\uDF39-\uDF3F\uDF99-\uDF9C]|\uD803[\uDEAD\uDF55-\uDF59\uDF86-\uDF89]|\uD804[\uDC47-\uDC4D\uDCBB\uDCBC\uDCBE-\uDCC1\uDD40-\uDD43\uDD74\uDD75\uDDC5-\uDDC8\uDDCD\uDDDB\uDDDD-\uDDDF\uDE38-\uDE3D\uDEA9]|\uD805[\uDC4B-\uDC4F\uDC5A\uDC5B\uDC5D\uDCC6\uDDC1-\uDDD7\uDE41-\uDE43\uDE60-\uDE6C\uDEB9\uDF3C-\uDF3E]|\uD806[\uDC3B\uDD44-\uDD46\uDDE2\uDE3F-\uDE46\uDE9A-\uDE9C\uDE9E-\uDEA2\uDF00-\uDF09]|\uD807[\uDC41-\uDC45\uDC70\uDC71\uDEF7\uDEF8\uDF43-\uDF4F\uDFFF]|\uD809[\uDC70-\uDC74]|\uD80B[\uDFF1\uDFF2]|\uD81A[\uDE6E\uDE6F\uDEF5\uDF37-\uDF3B\uDF44]|\uD81B[\uDE97-\uDE9A\uDFE2]|\uD82F\uDC9F|\uD836[\uDE87-\uDE8B]|\uD83A[\uDD5E\uDD5F]/;
+ var regex = /[\$\+<->\^`\|~\xA2-\xA6\xA8\xA9\xAC\xAE-\xB1\xB4\xB8\xD7\xF7\u02C2-\u02C5\u02D2-\u02DF\u02E5-\u02EB\u02ED\u02EF-\u02FF\u0375\u0384\u0385\u03F6\u0482\u058D-\u058F\u0606-\u0608\u060B\u060E\u060F\u06DE\u06E9\u06FD\u06FE\u07F6\u07FE\u07FF\u0888\u09F2\u09F3\u09FA\u09FB\u0AF1\u0B70\u0BF3-\u0BFA\u0C7F\u0D4F\u0D79\u0E3F\u0F01-\u0F03\u0F13\u0F15-\u0F17\u0F1A-\u0F1F\u0F34\u0F36\u0F38\u0FBE-\u0FC5\u0FC7-\u0FCC\u0FCE\u0FCF\u0FD5-\u0FD8\u109E\u109F\u1390-\u1399\u166D\u17DB\u1940\u19DE-\u19FF\u1B61-\u1B6A\u1B74-\u1B7C\u1FBD\u1FBF-\u1FC1\u1FCD-\u1FCF\u1FDD-\u1FDF\u1FED-\u1FEF\u1FFD\u1FFE\u2044\u2052\u207A-\u207C\u208A-\u208C\u20A0-\u20C0\u2100\u2101\u2103-\u2106\u2108\u2109\u2114\u2116-\u2118\u211E-\u2123\u2125\u2127\u2129\u212E\u213A\u213B\u2140-\u2144\u214A-\u214D\u214F\u218A\u218B\u2190-\u2307\u230C-\u2328\u232B-\u2426\u2440-\u244A\u249C-\u24E9\u2500-\u2767\u2794-\u27C4\u27C7-\u27E5\u27F0-\u2982\u2999-\u29D7\u29DC-\u29FB\u29FE-\u2B73\u2B76-\u2B95\u2B97-\u2BFF\u2CE5-\u2CEA\u2E50\u2E51\u2E80-\u2E99\u2E9B-\u2EF3\u2F00-\u2FD5\u2FF0-\u2FFF\u3004\u3012\u3013\u3020\u3036\u3037\u303E\u303F\u309B\u309C\u3190\u3191\u3196-\u319F\u31C0-\u31E3\u31EF\u3200-\u321E\u322A-\u3247\u3250\u3260-\u327F\u328A-\u32B0\u32C0-\u33FF\u4DC0-\u4DFF\uA490-\uA4C6\uA700-\uA716\uA720\uA721\uA789\uA78A\uA828-\uA82B\uA836-\uA839\uAA77-\uAA79\uAB5B\uAB6A\uAB6B\uFB29\uFBB2-\uFBC2\uFD40-\uFD4F\uFDCF\uFDFC-\uFDFF\uFE62\uFE64-\uFE66\uFE69\uFF04\uFF0B\uFF1C-\uFF1E\uFF3E\uFF40\uFF5C\uFF5E\uFFE0-\uFFE6\uFFE8-\uFFEE\uFFFC\uFFFD]|\uD800[\uDD37-\uDD3F\uDD79-\uDD89\uDD8C-\uDD8E\uDD90-\uDD9C\uDDA0\uDDD0-\uDDFC]|\uD802[\uDC77\uDC78\uDEC8]|\uD805\uDF3F|\uD807[\uDFD5-\uDFF1]|\uD81A[\uDF3C-\uDF3F\uDF45]|\uD82F\uDC9C|\uD833[\uDF50-\uDFC3]|\uD834[\uDC00-\uDCF5\uDD00-\uDD26\uDD29-\uDD64\uDD6A-\uDD6C\uDD83\uDD84\uDD8C-\uDDA9\uDDAE-\uDDEA\uDE00-\uDE41\uDE45\uDF00-\uDF56]|\uD835[\uDEC1\uDEDB\uDEFB\uDF15\uDF35\uDF4F\uDF6F\uDF89\uDFA9\uDFC3]|\uD836[\uDC00-\uDDFF\uDE37-\uDE3A\uDE6D-\uDE74\uDE76-\uDE83\uDE85\uDE86]|\uD838[\uDD4F\uDEFF]|\uD83B[\uDCAC\uDCB0\uDD2E\uDEF0\uDEF1]|\uD83C[\uDC00-\uDC2B\uDC30-\uDC93\uDCA0-\uDCAE\uDCB1-\uDCBF\uDCC1-\uDCCF\uDCD1-\uDCF5\uDD0D-\uDDAD\uDDE6-\uDE02\uDE10-\uDE3B\uDE40-\uDE48\uDE50\uDE51\uDE60-\uDE65\uDF00-\uDFFF]|\uD83D[\uDC00-\uDED7\uDEDC-\uDEEC\uDEF0-\uDEFC\uDF00-\uDF76\uDF7B-\uDFD9\uDFE0-\uDFEB\uDFF0]|\uD83E[\uDC00-\uDC0B\uDC10-\uDC47\uDC50-\uDC59\uDC60-\uDC87\uDC90-\uDCAD\uDCB0\uDCB1\uDD00-\uDE53\uDE60-\uDE6D\uDE70-\uDE7C\uDE80-\uDE88\uDE90-\uDEBD\uDEBF-\uDEC5\uDECE-\uDEDB\uDEE0-\uDEE8\uDEF0-\uDEF8\uDF00-\uDF92\uDF94-\uDFCA]/;
+ var Z = /[ \xA0\u1680\u2000-\u200A\u2028\u2029\u202F\u205F\u3000]/;
+ var ucmicro = Object.freeze({
+ __proto__: null,
+ Any: Any,
+ Cc: Cc,
+ Cf: regex$1,
+ P: P,
+ S: regex,
+ Z: Z
+ });
+ // Generated using scripts/write-decode-map.ts
+ var htmlDecodeTree = new Uint16Array(
+ // prettier-ignore
+ 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=> c.charCodeAt(0))));
+ // Generated using scripts/write-decode-map.ts
+ var xmlDecodeTree = new Uint16Array(
+ // prettier-ignore
+ "\u0200aglq\t\x15\x18\x1b\u026d\x0f\0\0\x12p;\u4026os;\u4027t;\u403et;\u403cuot;\u4022".split("").map((c => c.charCodeAt(0))));
+ // Adapted from https://github.com/mathiasbynens/he/blob/36afe179392226cf1b6ccdb16ebbb7a5a844d93a/src/he.js#L106-L134
+ var _a;
+ const decodeMap = new Map([ [ 0, 65533 ],
+ // C1 Unicode control character reference replacements
+ [ 128, 8364 ], [ 130, 8218 ], [ 131, 402 ], [ 132, 8222 ], [ 133, 8230 ], [ 134, 8224 ], [ 135, 8225 ], [ 136, 710 ], [ 137, 8240 ], [ 138, 352 ], [ 139, 8249 ], [ 140, 338 ], [ 142, 381 ], [ 145, 8216 ], [ 146, 8217 ], [ 147, 8220 ], [ 148, 8221 ], [ 149, 8226 ], [ 150, 8211 ], [ 151, 8212 ], [ 152, 732 ], [ 153, 8482 ], [ 154, 353 ], [ 155, 8250 ], [ 156, 339 ], [ 158, 382 ], [ 159, 376 ] ]);
+ /**
+ * Polyfill for `String.fromCodePoint`. It is used to create a string from a Unicode code point.
+ */ const fromCodePoint$1 =
+ // eslint-disable-next-line @typescript-eslint/no-unnecessary-condition, node/no-unsupported-features/es-builtins
+ (_a = String.fromCodePoint) !== null && _a !== void 0 ? _a : function(codePoint) {
+ let output = "";
+ if (codePoint > 65535) {
+ codePoint -= 65536;
+ output += String.fromCharCode(codePoint >>> 10 & 1023 | 55296);
+ codePoint = 56320 | codePoint & 1023;
+ }
+ output += String.fromCharCode(codePoint);
+ return output;
+ };
+ /**
+ * Replace the given code point with a replacement character if it is a
+ * surrogate or is outside the valid range. Otherwise return the code
+ * point unchanged.
+ */ function replaceCodePoint(codePoint) {
+ var _a;
+ if (codePoint >= 55296 && codePoint <= 57343 || codePoint > 1114111) {
+ return 65533;
+ }
+ return (_a = decodeMap.get(codePoint)) !== null && _a !== void 0 ? _a : codePoint;
+ }
+ var CharCodes;
+ (function(CharCodes) {
+ CharCodes[CharCodes["NUM"] = 35] = "NUM";
+ CharCodes[CharCodes["SEMI"] = 59] = "SEMI";
+ CharCodes[CharCodes["EQUALS"] = 61] = "EQUALS";
+ CharCodes[CharCodes["ZERO"] = 48] = "ZERO";
+ CharCodes[CharCodes["NINE"] = 57] = "NINE";
+ CharCodes[CharCodes["LOWER_A"] = 97] = "LOWER_A";
+ CharCodes[CharCodes["LOWER_F"] = 102] = "LOWER_F";
+ CharCodes[CharCodes["LOWER_X"] = 120] = "LOWER_X";
+ CharCodes[CharCodes["LOWER_Z"] = 122] = "LOWER_Z";
+ CharCodes[CharCodes["UPPER_A"] = 65] = "UPPER_A";
+ CharCodes[CharCodes["UPPER_F"] = 70] = "UPPER_F";
+ CharCodes[CharCodes["UPPER_Z"] = 90] = "UPPER_Z";
+ })(CharCodes || (CharCodes = {}));
+ /** Bit that needs to be set to convert an upper case ASCII character to lower case */ const TO_LOWER_BIT = 32;
+ var BinTrieFlags;
+ (function(BinTrieFlags) {
+ BinTrieFlags[BinTrieFlags["VALUE_LENGTH"] = 49152] = "VALUE_LENGTH";
+ BinTrieFlags[BinTrieFlags["BRANCH_LENGTH"] = 16256] = "BRANCH_LENGTH";
+ BinTrieFlags[BinTrieFlags["JUMP_TABLE"] = 127] = "JUMP_TABLE";
+ })(BinTrieFlags || (BinTrieFlags = {}));
+ function isNumber(code) {
+ return code >= CharCodes.ZERO && code <= CharCodes.NINE;
+ }
+ function isHexadecimalCharacter(code) {
+ return code >= CharCodes.UPPER_A && code <= CharCodes.UPPER_F || code >= CharCodes.LOWER_A && code <= CharCodes.LOWER_F;
+ }
+ function isAsciiAlphaNumeric(code) {
+ return code >= CharCodes.UPPER_A && code <= CharCodes.UPPER_Z || code >= CharCodes.LOWER_A && code <= CharCodes.LOWER_Z || isNumber(code);
+ }
+ /**
+ * Checks if the given character is a valid end character for an entity in an attribute.
+ *
+ * Attribute values that aren't terminated properly aren't parsed, and shouldn't lead to a parser error.
+ * See the example in https://html.spec.whatwg.org/multipage/parsing.html#named-character-reference-state
+ */ function isEntityInAttributeInvalidEnd(code) {
+ return code === CharCodes.EQUALS || isAsciiAlphaNumeric(code);
+ }
+ var EntityDecoderState;
+ (function(EntityDecoderState) {
+ EntityDecoderState[EntityDecoderState["EntityStart"] = 0] = "EntityStart";
+ EntityDecoderState[EntityDecoderState["NumericStart"] = 1] = "NumericStart";
+ EntityDecoderState[EntityDecoderState["NumericDecimal"] = 2] = "NumericDecimal";
+ EntityDecoderState[EntityDecoderState["NumericHex"] = 3] = "NumericHex";
+ EntityDecoderState[EntityDecoderState["NamedEntity"] = 4] = "NamedEntity";
+ })(EntityDecoderState || (EntityDecoderState = {}));
+ var DecodingMode;
+ (function(DecodingMode) {
+ /** Entities in text nodes that can end with any character. */
+ DecodingMode[DecodingMode["Legacy"] = 0] = "Legacy";
+ /** Only allow entities terminated with a semicolon. */ DecodingMode[DecodingMode["Strict"] = 1] = "Strict";
+ /** Entities in attributes have limitations on ending characters. */ DecodingMode[DecodingMode["Attribute"] = 2] = "Attribute";
+ })(DecodingMode || (DecodingMode = {}));
+ /**
+ * Token decoder with support of writing partial entities.
+ */ class EntityDecoder {
+ constructor(/** The tree used to decode entities. */
+ decodeTree,
+ /**
+ * The function that is called when a codepoint is decoded.
+ *
+ * For multi-byte named entities, this will be called multiple times,
+ * with the second codepoint, and the same `consumed` value.
+ *
+ * @param codepoint The decoded codepoint.
+ * @param consumed The number of bytes consumed by the decoder.
+ */
+ emitCodePoint, /** An object that is used to produce errors. */
+ errors) {
+ this.decodeTree = decodeTree;
+ this.emitCodePoint = emitCodePoint;
+ this.errors = errors;
+ /** The current state of the decoder. */ this.state = EntityDecoderState.EntityStart;
+ /** Characters that were consumed while parsing an entity. */ this.consumed = 1;
+ /**
+ * The result of the entity.
+ *
+ * Either the result index of a numeric entity, or the codepoint of a
+ * numeric entity.
+ */ this.result = 0;
+ /** The current index in the decode tree. */ this.treeIndex = 0;
+ /** The number of characters that were consumed in excess. */ this.excess = 1;
+ /** The mode in which the decoder is operating. */ this.decodeMode = DecodingMode.Strict;
+ }
+ /** Resets the instance to make it reusable. */ startEntity(decodeMode) {
+ this.decodeMode = decodeMode;
+ this.state = EntityDecoderState.EntityStart;
+ this.result = 0;
+ this.treeIndex = 0;
+ this.excess = 1;
+ this.consumed = 1;
+ }
+ /**
+ * Write an entity to the decoder. This can be called multiple times with partial entities.
+ * If the entity is incomplete, the decoder will return -1.
+ *
+ * Mirrors the implementation of `getDecoder`, but with the ability to stop decoding if the
+ * entity is incomplete, and resume when the next string is written.
+ *
+ * @param string The string containing the entity (or a continuation of the entity).
+ * @param offset The offset at which the entity begins. Should be 0 if this is not the first call.
+ * @returns The number of characters that were consumed, or -1 if the entity is incomplete.
+ */ write(str, offset) {
+ switch (this.state) {
+ case EntityDecoderState.EntityStart:
+ {
+ if (str.charCodeAt(offset) === CharCodes.NUM) {
+ this.state = EntityDecoderState.NumericStart;
+ this.consumed += 1;
+ return this.stateNumericStart(str, offset + 1);
+ }
+ this.state = EntityDecoderState.NamedEntity;
+ return this.stateNamedEntity(str, offset);
+ }
+
+ case EntityDecoderState.NumericStart:
+ {
+ return this.stateNumericStart(str, offset);
+ }
+
+ case EntityDecoderState.NumericDecimal:
+ {
+ return this.stateNumericDecimal(str, offset);
+ }
+
+ case EntityDecoderState.NumericHex:
+ {
+ return this.stateNumericHex(str, offset);
+ }
+
+ case EntityDecoderState.NamedEntity:
+ {
+ return this.stateNamedEntity(str, offset);
+ }
+ }
+ }
+ /**
+ * Switches between the numeric decimal and hexadecimal states.
+ *
+ * Equivalent to the `Numeric character reference state` in the HTML spec.
+ *
+ * @param str The string containing the entity (or a continuation of the entity).
+ * @param offset The current offset.
+ * @returns The number of characters that were consumed, or -1 if the entity is incomplete.
+ */ stateNumericStart(str, offset) {
+ if (offset >= str.length) {
+ return -1;
+ }
+ if ((str.charCodeAt(offset) | TO_LOWER_BIT) === CharCodes.LOWER_X) {
+ this.state = EntityDecoderState.NumericHex;
+ this.consumed += 1;
+ return this.stateNumericHex(str, offset + 1);
+ }
+ this.state = EntityDecoderState.NumericDecimal;
+ return this.stateNumericDecimal(str, offset);
+ }
+ addToNumericResult(str, start, end, base) {
+ if (start !== end) {
+ const digitCount = end - start;
+ this.result = this.result * Math.pow(base, digitCount) + parseInt(str.substr(start, digitCount), base);
+ this.consumed += digitCount;
+ }
+ }
+ /**
+ * Parses a hexadecimal numeric entity.
+ *
+ * Equivalent to the `Hexademical character reference state` in the HTML spec.
+ *
+ * @param str The string containing the entity (or a continuation of the entity).
+ * @param offset The current offset.
+ * @returns The number of characters that were consumed, or -1 if the entity is incomplete.
+ */ stateNumericHex(str, offset) {
+ const startIdx = offset;
+ while (offset < str.length) {
+ const char = str.charCodeAt(offset);
+ if (isNumber(char) || isHexadecimalCharacter(char)) {
+ offset += 1;
+ } else {
+ this.addToNumericResult(str, startIdx, offset, 16);
+ return this.emitNumericEntity(char, 3);
+ }
+ }
+ this.addToNumericResult(str, startIdx, offset, 16);
+ return -1;
+ }
+ /**
+ * Parses a decimal numeric entity.
+ *
+ * Equivalent to the `Decimal character reference state` in the HTML spec.
+ *
+ * @param str The string containing the entity (or a continuation of the entity).
+ * @param offset The current offset.
+ * @returns The number of characters that were consumed, or -1 if the entity is incomplete.
+ */ stateNumericDecimal(str, offset) {
+ const startIdx = offset;
+ while (offset < str.length) {
+ const char = str.charCodeAt(offset);
+ if (isNumber(char)) {
+ offset += 1;
+ } else {
+ this.addToNumericResult(str, startIdx, offset, 10);
+ return this.emitNumericEntity(char, 2);
+ }
+ }
+ this.addToNumericResult(str, startIdx, offset, 10);
+ return -1;
+ }
+ /**
+ * Validate and emit a numeric entity.
+ *
+ * Implements the logic from the `Hexademical character reference start
+ * state` and `Numeric character reference end state` in the HTML spec.
+ *
+ * @param lastCp The last code point of the entity. Used to see if the
+ * entity was terminated with a semicolon.
+ * @param expectedLength The minimum number of characters that should be
+ * consumed. Used to validate that at least one digit
+ * was consumed.
+ * @returns The number of characters that were consumed.
+ */ emitNumericEntity(lastCp, expectedLength) {
+ var _a;
+ // Ensure we consumed at least one digit.
+ if (this.consumed <= expectedLength) {
+ (_a = this.errors) === null || _a === void 0 ? void 0 : _a.absenceOfDigitsInNumericCharacterReference(this.consumed);
+ return 0;
+ }
+ // Figure out if this is a legit end of the entity
+ if (lastCp === CharCodes.SEMI) {
+ this.consumed += 1;
+ } else if (this.decodeMode === DecodingMode.Strict) {
+ return 0;
+ }
+ this.emitCodePoint(replaceCodePoint(this.result), this.consumed);
+ if (this.errors) {
+ if (lastCp !== CharCodes.SEMI) {
+ this.errors.missingSemicolonAfterCharacterReference();
+ }
+ this.errors.validateNumericCharacterReference(this.result);
+ }
+ return this.consumed;
+ }
+ /**
+ * Parses a named entity.
+ *
+ * Equivalent to the `Named character reference state` in the HTML spec.
+ *
+ * @param str The string containing the entity (or a continuation of the entity).
+ * @param offset The current offset.
+ * @returns The number of characters that were consumed, or -1 if the entity is incomplete.
+ */ stateNamedEntity(str, offset) {
+ const {decodeTree: decodeTree} = this;
+ let current = decodeTree[this.treeIndex];
+ // The mask is the number of bytes of the value, including the current byte.
+ let valueLength = (current & BinTrieFlags.VALUE_LENGTH) >> 14;
+ for (;offset < str.length; offset++, this.excess++) {
+ const char = str.charCodeAt(offset);
+ this.treeIndex = determineBranch(decodeTree, current, this.treeIndex + Math.max(1, valueLength), char);
+ if (this.treeIndex < 0) {
+ return this.result === 0 ||
+ // If we are parsing an attribute
+ this.decodeMode === DecodingMode.Attribute && (
+ // We shouldn't have consumed any characters after the entity,
+ valueLength === 0 ||
+ // And there should be no invalid characters.
+ isEntityInAttributeInvalidEnd(char)) ? 0 : this.emitNotTerminatedNamedEntity();
+ }
+ current = decodeTree[this.treeIndex];
+ valueLength = (current & BinTrieFlags.VALUE_LENGTH) >> 14;
+ // If the branch is a value, store it and continue
+ if (valueLength !== 0) {
+ // If the entity is terminated by a semicolon, we are done.
+ if (char === CharCodes.SEMI) {
+ return this.emitNamedEntityData(this.treeIndex, valueLength, this.consumed + this.excess);
+ }
+ // If we encounter a non-terminated (legacy) entity while parsing strictly, then ignore it.
+ if (this.decodeMode !== DecodingMode.Strict) {
+ this.result = this.treeIndex;
+ this.consumed += this.excess;
+ this.excess = 0;
+ }
+ }
+ }
+ return -1;
+ }
+ /**
+ * Emit a named entity that was not terminated with a semicolon.
+ *
+ * @returns The number of characters consumed.
+ */ emitNotTerminatedNamedEntity() {
+ var _a;
+ const {result: result, decodeTree: decodeTree} = this;
+ const valueLength = (decodeTree[result] & BinTrieFlags.VALUE_LENGTH) >> 14;
+ this.emitNamedEntityData(result, valueLength, this.consumed);
+ (_a = this.errors) === null || _a === void 0 ? void 0 : _a.missingSemicolonAfterCharacterReference();
+ return this.consumed;
+ }
+ /**
+ * Emit a named entity.
+ *
+ * @param result The index of the entity in the decode tree.
+ * @param valueLength The number of bytes in the entity.
+ * @param consumed The number of characters consumed.
+ *
+ * @returns The number of characters consumed.
+ */ emitNamedEntityData(result, valueLength, consumed) {
+ const {decodeTree: decodeTree} = this;
+ this.emitCodePoint(valueLength === 1 ? decodeTree[result] & ~BinTrieFlags.VALUE_LENGTH : decodeTree[result + 1], consumed);
+ if (valueLength === 3) {
+ // For multi-byte values, we need to emit the second byte.
+ this.emitCodePoint(decodeTree[result + 2], consumed);
+ }
+ return consumed;
+ }
+ /**
+ * Signal to the parser that the end of the input was reached.
+ *
+ * Remaining data will be emitted and relevant errors will be produced.
+ *
+ * @returns The number of characters consumed.
+ */ end() {
+ var _a;
+ switch (this.state) {
+ case EntityDecoderState.NamedEntity:
+ {
+ // Emit a named entity if we have one.
+ return this.result !== 0 && (this.decodeMode !== DecodingMode.Attribute || this.result === this.treeIndex) ? this.emitNotTerminatedNamedEntity() : 0;
+ }
+
+ // Otherwise, emit a numeric entity if we have one.
+ case EntityDecoderState.NumericDecimal:
+ {
+ return this.emitNumericEntity(0, 2);
+ }
+
+ case EntityDecoderState.NumericHex:
+ {
+ return this.emitNumericEntity(0, 3);
+ }
+
+ case EntityDecoderState.NumericStart:
+ {
+ (_a = this.errors) === null || _a === void 0 ? void 0 : _a.absenceOfDigitsInNumericCharacterReference(this.consumed);
+ return 0;
+ }
+
+ case EntityDecoderState.EntityStart:
+ {
+ // Return 0 if we have no entity.
+ return 0;
+ }
+ }
+ }
+ }
+ /**
+ * Creates a function that decodes entities in a string.
+ *
+ * @param decodeTree The decode tree.
+ * @returns A function that decodes entities in a string.
+ */ function getDecoder(decodeTree) {
+ let ret = "";
+ const decoder = new EntityDecoder(decodeTree, (str => ret += fromCodePoint$1(str)));
+ return function decodeWithTrie(str, decodeMode) {
+ let lastIndex = 0;
+ let offset = 0;
+ while ((offset = str.indexOf("&", offset)) >= 0) {
+ ret += str.slice(lastIndex, offset);
+ decoder.startEntity(decodeMode);
+ const len = decoder.write(str,
+ // Skip the "&"
+ offset + 1);
+ if (len < 0) {
+ lastIndex = offset + decoder.end();
+ break;
+ }
+ lastIndex = offset + len;
+ // If `len` is 0, skip the current `&` and continue.
+ offset = len === 0 ? lastIndex + 1 : lastIndex;
+ }
+ const result = ret + str.slice(lastIndex);
+ // Make sure we don't keep a reference to the final string.
+ ret = "";
+ return result;
+ };
+ }
+ /**
+ * Determines the branch of the current node that is taken given the current
+ * character. This function is used to traverse the trie.
+ *
+ * @param decodeTree The trie.
+ * @param current The current node.
+ * @param nodeIdx The index right after the current node and its value.
+ * @param char The current character.
+ * @returns The index of the next node, or -1 if no branch is taken.
+ */ function determineBranch(decodeTree, current, nodeIdx, char) {
+ const branchCount = (current & BinTrieFlags.BRANCH_LENGTH) >> 7;
+ const jumpOffset = current & BinTrieFlags.JUMP_TABLE;
+ // Case 1: Single branch encoded in jump offset
+ if (branchCount === 0) {
+ return jumpOffset !== 0 && char === jumpOffset ? nodeIdx : -1;
+ }
+ // Case 2: Multiple branches encoded in jump table
+ if (jumpOffset) {
+ const value = char - jumpOffset;
+ return value < 0 || value >= branchCount ? -1 : decodeTree[nodeIdx + value] - 1;
+ }
+ // Case 3: Multiple branches encoded in dictionary
+ // Binary search for the character.
+ let lo = nodeIdx;
+ let hi = lo + branchCount - 1;
+ while (lo <= hi) {
+ const mid = lo + hi >>> 1;
+ const midVal = decodeTree[mid];
+ if (midVal < char) {
+ lo = mid + 1;
+ } else if (midVal > char) {
+ hi = mid - 1;
+ } else {
+ return decodeTree[mid + branchCount];
+ }
+ }
+ return -1;
+ }
+ const htmlDecoder = getDecoder(htmlDecodeTree);
+ getDecoder(xmlDecodeTree);
+ /**
+ * Decodes an HTML string.
+ *
+ * @param str The string to decode.
+ * @param mode The decoding mode.
+ * @returns The decoded string.
+ */ function decodeHTML(str, mode = DecodingMode.Legacy) {
+ return htmlDecoder(str, mode);
+ }
+ // Utilities
+
+ function _class$1(obj) {
+ return Object.prototype.toString.call(obj);
+ }
+ function isString$1(obj) {
+ return _class$1(obj) === "[object String]";
+ }
+ const _hasOwnProperty = Object.prototype.hasOwnProperty;
+ function has(object, key) {
+ return _hasOwnProperty.call(object, key);
+ }
+ // Merge objects
+
+ function assign$1(obj /* from1, from2, from3, ... */) {
+ const sources = Array.prototype.slice.call(arguments, 1);
+ sources.forEach((function(source) {
+ if (!source) {
+ return;
+ }
+ if (typeof source !== "object") {
+ throw new TypeError(source + "must be object");
+ }
+ Object.keys(source).forEach((function(key) {
+ obj[key] = source[key];
+ }));
+ }));
+ return obj;
+ }
+ // Remove element from array and put another array at those position.
+ // Useful for some operations with tokens
+ function arrayReplaceAt(src, pos, newElements) {
+ return [].concat(src.slice(0, pos), newElements, src.slice(pos + 1));
+ }
+ function isValidEntityCode(c) {
+ /* eslint no-bitwise:0 */
+ // broken sequence
+ if (c >= 55296 && c <= 57343) {
+ return false;
+ }
+ // never used
+ if (c >= 64976 && c <= 65007) {
+ return false;
+ }
+ if ((c & 65535) === 65535 || (c & 65535) === 65534) {
+ return false;
+ }
+ // control codes
+ if (c >= 0 && c <= 8) {
+ return false;
+ }
+ if (c === 11) {
+ return false;
+ }
+ if (c >= 14 && c <= 31) {
+ return false;
+ }
+ if (c >= 127 && c <= 159) {
+ return false;
+ }
+ // out of range
+ if (c > 1114111) {
+ return false;
+ }
+ return true;
+ }
+ function fromCodePoint(c) {
+ /* eslint no-bitwise:0 */
+ if (c > 65535) {
+ c -= 65536;
+ const surrogate1 = 55296 + (c >> 10);
+ const surrogate2 = 56320 + (c & 1023);
+ return String.fromCharCode(surrogate1, surrogate2);
+ }
+ return String.fromCharCode(c);
+ }
+ const UNESCAPE_MD_RE = /\\([!"#$%&'()*+,\-./:;<=>?@[\\\]^_`{|}~])/g;
+ const ENTITY_RE = /&([a-z#][a-z0-9]{1,31});/gi;
+ const UNESCAPE_ALL_RE = new RegExp(UNESCAPE_MD_RE.source + "|" + ENTITY_RE.source, "gi");
+ const DIGITAL_ENTITY_TEST_RE = /^#((?:x[a-f0-9]{1,8}|[0-9]{1,8}))$/i;
+ function replaceEntityPattern(match, name) {
+ if (name.charCodeAt(0) === 35 /* # */ && DIGITAL_ENTITY_TEST_RE.test(name)) {
+ const code = name[1].toLowerCase() === "x" ? parseInt(name.slice(2), 16) : parseInt(name.slice(1), 10);
+ if (isValidEntityCode(code)) {
+ return fromCodePoint(code);
+ }
+ return match;
+ }
+ const decoded = decodeHTML(match);
+ if (decoded !== match) {
+ return decoded;
+ }
+ return match;
+ }
+ /* function replaceEntities(str) {
+ if (str.indexOf('&') < 0) { return str; }
+
+ return str.replace(ENTITY_RE, replaceEntityPattern);
+ } */ function unescapeMd(str) {
+ if (str.indexOf("\\") < 0) {
+ return str;
+ }
+ return str.replace(UNESCAPE_MD_RE, "$1");
+ }
+ function unescapeAll(str) {
+ if (str.indexOf("\\") < 0 && str.indexOf("&") < 0) {
+ return str;
+ }
+ return str.replace(UNESCAPE_ALL_RE, (function(match, escaped, entity) {
+ if (escaped) {
+ return escaped;
+ }
+ return replaceEntityPattern(match, entity);
+ }));
+ }
+ const HTML_ESCAPE_TEST_RE = /[&<>"]/;
+ const HTML_ESCAPE_REPLACE_RE = /[&<>"]/g;
+ const HTML_REPLACEMENTS = {
+ "&": "&amp;",
+ "<": "&lt;",
+ ">": "&gt;",
+ '"': "&quot;"
+ };
+ function replaceUnsafeChar(ch) {
+ return HTML_REPLACEMENTS[ch];
+ }
+ function escapeHtml(str) {
+ if (HTML_ESCAPE_TEST_RE.test(str)) {
+ return str.replace(HTML_ESCAPE_REPLACE_RE, replaceUnsafeChar);
+ }
+ return str;
+ }
+ const REGEXP_ESCAPE_RE = /[.?*+^$[\]\\(){}|-]/g;
+ function escapeRE$1(str) {
+ return str.replace(REGEXP_ESCAPE_RE, "\\$&");
+ }
+ function isSpace(code) {
+ switch (code) {
+ case 9:
+ case 32:
+ return true;
+ }
+ return false;
+ }
+ // Zs (unicode class) || [\t\f\v\r\n]
+ function isWhiteSpace(code) {
+ if (code >= 8192 && code <= 8202) {
+ return true;
+ }
+ switch (code) {
+ case 9:
+ // \t
+ case 10:
+ // \n
+ case 11:
+ // \v
+ case 12:
+ // \f
+ case 13:
+ // \r
+ case 32:
+ case 160:
+ case 5760:
+ case 8239:
+ case 8287:
+ case 12288:
+ return true;
+ }
+ return false;
+ }
+ /* eslint-disable max-len */
+ // Currently without astral characters support.
+ function isPunctChar(ch) {
+ return P.test(ch) || regex.test(ch);
+ }
+ // Markdown ASCII punctuation characters.
+
+ // !, ", #, $, %, &, ', (, ), *, +, ,, -, ., /, :, ;, <, =, >, ?, @, [, \, ], ^, _, `, {, |, }, or ~
+ // http://spec.commonmark.org/0.15/#ascii-punctuation-character
+
+ // Don't confuse with unicode punctuation !!! It lacks some chars in ascii range.
+
+ function isMdAsciiPunct(ch) {
+ switch (ch) {
+ case 33 /* ! */ :
+ case 34 /* " */ :
+ case 35 /* # */ :
+ case 36 /* $ */ :
+ case 37 /* % */ :
+ case 38 /* & */ :
+ case 39 /* ' */ :
+ case 40 /* ( */ :
+ case 41 /* ) */ :
+ case 42 /* * */ :
+ case 43 /* + */ :
+ case 44 /* , */ :
+ case 45 /* - */ :
+ case 46 /* . */ :
+ case 47 /* / */ :
+ case 58 /* : */ :
+ case 59 /* ; */ :
+ case 60 /* < */ :
+ case 61 /* = */ :
+ case 62 /* > */ :
+ case 63 /* ? */ :
+ case 64 /* @ */ :
+ case 91 /* [ */ :
+ case 92 /* \ */ :
+ case 93 /* ] */ :
+ case 94 /* ^ */ :
+ case 95 /* _ */ :
+ case 96 /* ` */ :
+ case 123 /* { */ :
+ case 124 /* | */ :
+ case 125 /* } */ :
+ case 126 /* ~ */ :
+ return true;
+
+ default:
+ return false;
+ }
+ }
+ // Hepler to unify [reference labels].
+
+ function normalizeReference(str) {
+ // Trim and collapse whitespace
+ str = str.trim().replace(/\s+/g, " ");
+ // In node v10 'ẞ'.toLowerCase() === 'Ṿ', which is presumed to be a bug
+ // fixed in v12 (couldn't find any details).
+
+ // So treat this one as a special case
+ // (remove this when node v10 is no longer supported).
+
+ if ("\u1e9e".toLowerCase() === "\u1e7e") {
+ str = str.replace(/\u1e9e/g, "\xdf");
+ }
+ // .toLowerCase().toUpperCase() should get rid of all differences
+ // between letter variants.
+
+ // Simple .toLowerCase() doesn't normalize 125 code points correctly,
+ // and .toUpperCase doesn't normalize 6 of them (list of exceptions:
+ // İ, ϴ, ẞ, Ω, K, Å - those are already uppercased, but have differently
+ // uppercased versions).
+
+ // Here's an example showing how it happens. Lets take greek letter omega:
+ // uppercase U+0398 (Θ), U+03f4 (ϴ) and lowercase U+03b8 (θ), U+03d1 (ϑ)
+
+ // Unicode entries:
+ // 0398;GREEK CAPITAL LETTER THETA;Lu;0;L;;;;;N;;;;03B8;
+ // 03B8;GREEK SMALL LETTER THETA;Ll;0;L;;;;;N;;;0398;;0398
+ // 03D1;GREEK THETA SYMBOL;Ll;0;L;<compat> 03B8;;;;N;GREEK SMALL LETTER SCRIPT THETA;;0398;;0398
+ // 03F4;GREEK CAPITAL THETA SYMBOL;Lu;0;L;<compat> 0398;;;;N;;;;03B8;
+
+ // Case-insensitive comparison should treat all of them as equivalent.
+
+ // But .toLowerCase() doesn't change ϑ (it's already lowercase),
+ // and .toUpperCase() doesn't change ϴ (already uppercase).
+
+ // Applying first lower then upper case normalizes any character:
+ // '\u0398\u03f4\u03b8\u03d1'.toLowerCase().toUpperCase() === '\u0398\u0398\u0398\u0398'
+
+ // Note: this is equivalent to unicode case folding; unicode normalization
+ // is a different step that is not required here.
+
+ // Final result should be uppercased, because it's later stored in an object
+ // (this avoid a conflict with Object.prototype members,
+ // most notably, `__proto__`)
+
+ return str.toLowerCase().toUpperCase();
+ }
+ // Re-export libraries commonly used in both markdown-it and its plugins,
+ // so plugins won't have to depend on them explicitly, which reduces their
+ // bundled size (e.g. a browser build).
+
+ const lib = {
+ mdurl: mdurl,
+ ucmicro: ucmicro
+ };
+ var utils = Object.freeze({
+ __proto__: null,
+ arrayReplaceAt: arrayReplaceAt,
+ assign: assign$1,
+ escapeHtml: escapeHtml,
+ escapeRE: escapeRE$1,
+ fromCodePoint: fromCodePoint,
+ has: has,
+ isMdAsciiPunct: isMdAsciiPunct,
+ isPunctChar: isPunctChar,
+ isSpace: isSpace,
+ isString: isString$1,
+ isValidEntityCode: isValidEntityCode,
+ isWhiteSpace: isWhiteSpace,
+ lib: lib,
+ normalizeReference: normalizeReference,
+ unescapeAll: unescapeAll,
+ unescapeMd: unescapeMd
+ });
+ // Parse link label
+
+ // this function assumes that first character ("[") already matches;
+ // returns the end of the label
+
+ function parseLinkLabel(state, start, disableNested) {
+ let level, found, marker, prevPos;
+ const max = state.posMax;
+ const oldPos = state.pos;
+ state.pos = start + 1;
+ level = 1;
+ while (state.pos < max) {
+ marker = state.src.charCodeAt(state.pos);
+ if (marker === 93 /* ] */) {
+ level--;
+ if (level === 0) {
+ found = true;
+ break;
+ }
+ }
+ prevPos = state.pos;
+ state.md.inline.skipToken(state);
+ if (marker === 91 /* [ */) {
+ if (prevPos === state.pos - 1) {
+ // increase level if we find text `[`, which is not a part of any token
+ level++;
+ } else if (disableNested) {
+ state.pos = oldPos;
+ return -1;
+ }
+ }
+ }
+ let labelEnd = -1;
+ if (found) {
+ labelEnd = state.pos;
+ }
+ // restore old state
+ state.pos = oldPos;
+ return labelEnd;
+ }
+ // Parse link destination
+
+ function parseLinkDestination(str, start, max) {
+ let code;
+ let pos = start;
+ const result = {
+ ok: false,
+ pos: 0,
+ str: ""
+ };
+ if (str.charCodeAt(pos) === 60 /* < */) {
+ pos++;
+ while (pos < max) {
+ code = str.charCodeAt(pos);
+ if (code === 10 /* \n */) {
+ return result;
+ }
+ if (code === 60 /* < */) {
+ return result;
+ }
+ if (code === 62 /* > */) {
+ result.pos = pos + 1;
+ result.str = unescapeAll(str.slice(start + 1, pos));
+ result.ok = true;
+ return result;
+ }
+ if (code === 92 /* \ */ && pos + 1 < max) {
+ pos += 2;
+ continue;
+ }
+ pos++;
+ }
+ // no closing '>'
+ return result;
+ }
+ // this should be ... } else { ... branch
+ let level = 0;
+ while (pos < max) {
+ code = str.charCodeAt(pos);
+ if (code === 32) {
+ break;
+ }
+ // ascii control characters
+ if (code < 32 || code === 127) {
+ break;
+ }
+ if (code === 92 /* \ */ && pos + 1 < max) {
+ if (str.charCodeAt(pos + 1) === 32) {
+ break;
+ }
+ pos += 2;
+ continue;
+ }
+ if (code === 40 /* ( */) {
+ level++;
+ if (level > 32) {
+ return result;
+ }
+ }
+ if (code === 41 /* ) */) {
+ if (level === 0) {
+ break;
+ }
+ level--;
+ }
+ pos++;
+ }
+ if (start === pos) {
+ return result;
+ }
+ if (level !== 0) {
+ return result;
+ }
+ result.str = unescapeAll(str.slice(start, pos));
+ result.pos = pos;
+ result.ok = true;
+ return result;
+ }
+ // Parse link title
+
+ // Parse link title within `str` in [start, max] range,
+ // or continue previous parsing if `prev_state` is defined (equal to result of last execution).
+
+ function parseLinkTitle(str, start, max, prev_state) {
+ let code;
+ let pos = start;
+ const state = {
+ // if `true`, this is a valid link title
+ ok: false,
+ // if `true`, this link can be continued on the next line
+ can_continue: false,
+ // if `ok`, it's the position of the first character after the closing marker
+ pos: 0,
+ // if `ok`, it's the unescaped title
+ str: "",
+ // expected closing marker character code
+ marker: 0
+ };
+ if (prev_state) {
+ // this is a continuation of a previous parseLinkTitle call on the next line,
+ // used in reference links only
+ state.str = prev_state.str;
+ state.marker = prev_state.marker;
+ } else {
+ if (pos >= max) {
+ return state;
+ }
+ let marker = str.charCodeAt(pos);
+ if (marker !== 34 /* " */ && marker !== 39 /* ' */ && marker !== 40 /* ( */) {
+ return state;
+ }
+ start++;
+ pos++;
+ // if opening marker is "(", switch it to closing marker ")"
+ if (marker === 40) {
+ marker = 41;
+ }
+ state.marker = marker;
+ }
+ while (pos < max) {
+ code = str.charCodeAt(pos);
+ if (code === state.marker) {
+ state.pos = pos + 1;
+ state.str += unescapeAll(str.slice(start, pos));
+ state.ok = true;
+ return state;
+ } else if (code === 40 /* ( */ && state.marker === 41 /* ) */) {
+ return state;
+ } else if (code === 92 /* \ */ && pos + 1 < max) {
+ pos++;
+ }
+ pos++;
+ }
+ // no closing marker found, but this link title may continue on the next line (for references)
+ state.can_continue = true;
+ state.str += unescapeAll(str.slice(start, pos));
+ return state;
+ }
+ // Just a shortcut for bulk export
+ var helpers = Object.freeze({
+ __proto__: null,
+ parseLinkDestination: parseLinkDestination,
+ parseLinkLabel: parseLinkLabel,
+ parseLinkTitle: parseLinkTitle
+ });
+ /**
+ * class Renderer
+ *
+ * Generates HTML from parsed token stream. Each instance has independent
+ * copy of rules. Those can be rewritten with ease. Also, you can add new
+ * rules if you create plugin and adds new token types.
+ **/ const default_rules = {};
+ default_rules.code_inline = function(tokens, idx, options, env, slf) {
+ const token = tokens[idx];
+ return "<code" + slf.renderAttrs(token) + ">" + escapeHtml(token.content) + "</code>";
+ };
+ default_rules.code_block = function(tokens, idx, options, env, slf) {
+ const token = tokens[idx];
+ return "<pre" + slf.renderAttrs(token) + "><code>" + escapeHtml(tokens[idx].content) + "</code></pre>\n";
+ };
+ default_rules.fence = function(tokens, idx, options, env, slf) {
+ const token = tokens[idx];
+ const info = token.info ? unescapeAll(token.info).trim() : "";
+ let langName = "";
+ let langAttrs = "";
+ if (info) {
+ const arr = info.split(/(\s+)/g);
+ langName = arr[0];
+ langAttrs = arr.slice(2).join("");
+ }
+ let highlighted;
+ if (options.highlight) {
+ highlighted = options.highlight(token.content, langName, langAttrs) || escapeHtml(token.content);
+ } else {
+ highlighted = escapeHtml(token.content);
+ }
+ if (highlighted.indexOf("<pre") === 0) {
+ return highlighted + "\n";
+ }
+ // If language exists, inject class gently, without modifying original token.
+ // May be, one day we will add .deepClone() for token and simplify this part, but
+ // now we prefer to keep things local.
+ if (info) {
+ const i = token.attrIndex("class");
+ const tmpAttrs = token.attrs ? token.attrs.slice() : [];
+ if (i < 0) {
+ tmpAttrs.push([ "class", options.langPrefix + langName ]);
+ } else {
+ tmpAttrs[i] = tmpAttrs[i].slice();
+ tmpAttrs[i][1] += " " + options.langPrefix + langName;
+ }
+ // Fake token just to render attributes
+ const tmpToken = {
+ attrs: tmpAttrs
+ };
+ return `<pre><code${slf.renderAttrs(tmpToken)}>${highlighted}</code></pre>\n`;
+ }
+ return `<pre><code${slf.renderAttrs(token)}>${highlighted}</code></pre>\n`;
+ };
+ default_rules.image = function(tokens, idx, options, env, slf) {
+ const token = tokens[idx];
+ // "alt" attr MUST be set, even if empty. Because it's mandatory and
+ // should be placed on proper position for tests.
+
+ // Replace content with actual value
+ token.attrs[token.attrIndex("alt")][1] = slf.renderInlineAsText(token.children, options, env);
+ return slf.renderToken(tokens, idx, options);
+ };
+ default_rules.hardbreak = function(tokens, idx, options /*, env */) {
+ return options.xhtmlOut ? "<br />\n" : "<br>\n";
+ };
+ default_rules.softbreak = function(tokens, idx, options /*, env */) {
+ return options.breaks ? options.xhtmlOut ? "<br />\n" : "<br>\n" : "\n";
+ };
+ default_rules.text = function(tokens, idx /*, options, env */) {
+ return escapeHtml(tokens[idx].content);
+ };
+ default_rules.html_block = function(tokens, idx /*, options, env */) {
+ return tokens[idx].content;
+ };
+ default_rules.html_inline = function(tokens, idx /*, options, env */) {
+ return tokens[idx].content;
+ };
+ /**
+ * new Renderer()
+ *
+ * Creates new [[Renderer]] instance and fill [[Renderer#rules]] with defaults.
+ **/ function Renderer() {
+ /**
+ * Renderer#rules -> Object
+ *
+ * Contains render rules for tokens. Can be updated and extended.
+ *
+ * ##### Example
+ *
+ * ```javascript
+ * var md = require('markdown-it')();
+ *
+ * md.renderer.rules.strong_open = function () { return '<b>'; };
+ * md.renderer.rules.strong_close = function () { return '</b>'; };
+ *
+ * var result = md.renderInline(...);
+ * ```
+ *
+ * Each rule is called as independent static function with fixed signature:
+ *
+ * ```javascript
+ * function my_token_render(tokens, idx, options, env, renderer) {
+ * // ...
+ * return renderedHTML;
+ * }
+ * ```
+ *
+ * See [source code](https://github.com/markdown-it/markdown-it/blob/master/lib/renderer.mjs)
+ * for more details and examples.
+ **/
+ this.rules = assign$1({}, default_rules);
+ }
+ /**
+ * Renderer.renderAttrs(token) -> String
+ *
+ * Render token attributes to string.
+ **/ Renderer.prototype.renderAttrs = function renderAttrs(token) {
+ let i, l, result;
+ if (!token.attrs) {
+ return "";
+ }
+ result = "";
+ for (i = 0, l = token.attrs.length; i < l; i++) {
+ result += " " + escapeHtml(token.attrs[i][0]) + '="' + escapeHtml(token.attrs[i][1]) + '"';
+ }
+ return result;
+ };
+ /**
+ * Renderer.renderToken(tokens, idx, options) -> String
+ * - tokens (Array): list of tokens
+ * - idx (Numbed): token index to render
+ * - options (Object): params of parser instance
+ *
+ * Default token renderer. Can be overriden by custom function
+ * in [[Renderer#rules]].
+ **/ Renderer.prototype.renderToken = function renderToken(tokens, idx, options) {
+ const token = tokens[idx];
+ let result = "";
+ // Tight list paragraphs
+ if (token.hidden) {
+ return "";
+ }
+ // Insert a newline between hidden paragraph and subsequent opening
+ // block-level tag.
+
+ // For example, here we should insert a newline before blockquote:
+ // - a
+ // >
+
+ if (token.block && token.nesting !== -1 && idx && tokens[idx - 1].hidden) {
+ result += "\n";
+ }
+ // Add token name, e.g. `<img`
+ result += (token.nesting === -1 ? "</" : "<") + token.tag;
+ // Encode attributes, e.g. `<img src="foo"`
+ result += this.renderAttrs(token);
+ // Add a slash for self-closing tags, e.g. `<img src="foo" /`
+ if (token.nesting === 0 && options.xhtmlOut) {
+ result += " /";
+ }
+ // Check if we need to add a newline after this tag
+ let needLf = false;
+ if (token.block) {
+ needLf = true;
+ if (token.nesting === 1) {
+ if (idx + 1 < tokens.length) {
+ const nextToken = tokens[idx + 1];
+ if (nextToken.type === "inline" || nextToken.hidden) {
+ // Block-level tag containing an inline tag.
+ needLf = false;
+ } else if (nextToken.nesting === -1 && nextToken.tag === token.tag) {
+ // Opening tag + closing tag of the same type. E.g. `<li></li>`.
+ needLf = false;
+ }
+ }
+ }
+ }
+ result += needLf ? ">\n" : ">";
+ return result;
+ };
+ /**
+ * Renderer.renderInline(tokens, options, env) -> String
+ * - tokens (Array): list on block tokens to render
+ * - options (Object): params of parser instance
+ * - env (Object): additional data from parsed input (references, for example)
+ *
+ * The same as [[Renderer.render]], but for single token of `inline` type.
+ **/ Renderer.prototype.renderInline = function(tokens, options, env) {
+ let result = "";
+ const rules = this.rules;
+ for (let i = 0, len = tokens.length; i < len; i++) {
+ const type = tokens[i].type;
+ if (typeof rules[type] !== "undefined") {
+ result += rules[type](tokens, i, options, env, this);
+ } else {
+ result += this.renderToken(tokens, i, options);
+ }
+ }
+ return result;
+ };
+ /** internal
+ * Renderer.renderInlineAsText(tokens, options, env) -> String
+ * - tokens (Array): list on block tokens to render
+ * - options (Object): params of parser instance
+ * - env (Object): additional data from parsed input (references, for example)
+ *
+ * Special kludge for image `alt` attributes to conform CommonMark spec.
+ * Don't try to use it! Spec requires to show `alt` content with stripped markup,
+ * instead of simple escaping.
+ **/ Renderer.prototype.renderInlineAsText = function(tokens, options, env) {
+ let result = "";
+ for (let i = 0, len = tokens.length; i < len; i++) {
+ switch (tokens[i].type) {
+ case "text":
+ result += tokens[i].content;
+ break;
+
+ case "image":
+ result += this.renderInlineAsText(tokens[i].children, options, env);
+ break;
+
+ case "html_inline":
+ case "html_block":
+ result += tokens[i].content;
+ break;
+
+ case "softbreak":
+ case "hardbreak":
+ result += "\n";
+ break;
+ // all other tokens are skipped
+ }
+ }
+ return result;
+ };
+ /**
+ * Renderer.render(tokens, options, env) -> String
+ * - tokens (Array): list on block tokens to render
+ * - options (Object): params of parser instance
+ * - env (Object): additional data from parsed input (references, for example)
+ *
+ * Takes token stream and generates HTML. Probably, you will never need to call
+ * this method directly.
+ **/ Renderer.prototype.render = function(tokens, options, env) {
+ let result = "";
+ const rules = this.rules;
+ for (let i = 0, len = tokens.length; i < len; i++) {
+ const type = tokens[i].type;
+ if (type === "inline") {
+ result += this.renderInline(tokens[i].children, options, env);
+ } else if (typeof rules[type] !== "undefined") {
+ result += rules[type](tokens, i, options, env, this);
+ } else {
+ result += this.renderToken(tokens, i, options, env);
+ }
+ }
+ return result;
+ };
+ /**
+ * class Ruler
+ *
+ * Helper class, used by [[MarkdownIt#core]], [[MarkdownIt#block]] and
+ * [[MarkdownIt#inline]] to manage sequences of functions (rules):
+ *
+ * - keep rules in defined order
+ * - assign the name to each rule
+ * - enable/disable rules
+ * - add/replace rules
+ * - allow assign rules to additional named chains (in the same)
+ * - cacheing lists of active rules
+ *
+ * You will not need use this class directly until write plugins. For simple
+ * rules control use [[MarkdownIt.disable]], [[MarkdownIt.enable]] and
+ * [[MarkdownIt.use]].
+ **/
+ /**
+ * new Ruler()
+ **/ function Ruler() {
+ // List of added rules. Each element is:
+ // {
+ // name: XXX,
+ // enabled: Boolean,
+ // fn: Function(),
+ // alt: [ name2, name3 ]
+ // }
+ this.__rules__ = [];
+ // Cached rule chains.
+
+ // First level - chain name, '' for default.
+ // Second level - diginal anchor for fast filtering by charcodes.
+
+ this.__cache__ = null;
+ }
+ // Helper methods, should not be used directly
+ // Find rule index by name
+
+ Ruler.prototype.__find__ = function(name) {
+ for (let i = 0; i < this.__rules__.length; i++) {
+ if (this.__rules__[i].name === name) {
+ return i;
+ }
+ }
+ return -1;
+ };
+ // Build rules lookup cache
+
+ Ruler.prototype.__compile__ = function() {
+ const self = this;
+ const chains = [ "" ];
+ // collect unique names
+ self.__rules__.forEach((function(rule) {
+ if (!rule.enabled) {
+ return;
+ }
+ rule.alt.forEach((function(altName) {
+ if (chains.indexOf(altName) < 0) {
+ chains.push(altName);
+ }
+ }));
+ }));
+ self.__cache__ = {};
+ chains.forEach((function(chain) {
+ self.__cache__[chain] = [];
+ self.__rules__.forEach((function(rule) {
+ if (!rule.enabled) {
+ return;
+ }
+ if (chain && rule.alt.indexOf(chain) < 0) {
+ return;
+ }
+ self.__cache__[chain].push(rule.fn);
+ }));
+ }));
+ };
+ /**
+ * Ruler.at(name, fn [, options])
+ * - name (String): rule name to replace.
+ * - fn (Function): new rule function.
+ * - options (Object): new rule options (not mandatory).
+ *
+ * Replace rule by name with new function & options. Throws error if name not
+ * found.
+ *
+ * ##### Options:
+ *
+ * - __alt__ - array with names of "alternate" chains.
+ *
+ * ##### Example
+ *
+ * Replace existing typographer replacement rule with new one:
+ *
+ * ```javascript
+ * var md = require('markdown-it')();
+ *
+ * md.core.ruler.at('replacements', function replace(state) {
+ * //...
+ * });
+ * ```
+ **/ Ruler.prototype.at = function(name, fn, options) {
+ const index = this.__find__(name);
+ const opt = options || {};
+ if (index === -1) {
+ throw new Error("Parser rule not found: " + name);
+ }
+ this.__rules__[index].fn = fn;
+ this.__rules__[index].alt = opt.alt || [];
+ this.__cache__ = null;
+ };
+ /**
+ * Ruler.before(beforeName, ruleName, fn [, options])
+ * - beforeName (String): new rule will be added before this one.
+ * - ruleName (String): name of added rule.
+ * - fn (Function): rule function.
+ * - options (Object): rule options (not mandatory).
+ *
+ * Add new rule to chain before one with given name. See also
+ * [[Ruler.after]], [[Ruler.push]].
+ *
+ * ##### Options:
+ *
+ * - __alt__ - array with names of "alternate" chains.
+ *
+ * ##### Example
+ *
+ * ```javascript
+ * var md = require('markdown-it')();
+ *
+ * md.block.ruler.before('paragraph', 'my_rule', function replace(state) {
+ * //...
+ * });
+ * ```
+ **/ Ruler.prototype.before = function(beforeName, ruleName, fn, options) {
+ const index = this.__find__(beforeName);
+ const opt = options || {};
+ if (index === -1) {
+ throw new Error("Parser rule not found: " + beforeName);
+ }
+ this.__rules__.splice(index, 0, {
+ name: ruleName,
+ enabled: true,
+ fn: fn,
+ alt: opt.alt || []
+ });
+ this.__cache__ = null;
+ };
+ /**
+ * Ruler.after(afterName, ruleName, fn [, options])
+ * - afterName (String): new rule will be added after this one.
+ * - ruleName (String): name of added rule.
+ * - fn (Function): rule function.
+ * - options (Object): rule options (not mandatory).
+ *
+ * Add new rule to chain after one with given name. See also
+ * [[Ruler.before]], [[Ruler.push]].
+ *
+ * ##### Options:
+ *
+ * - __alt__ - array with names of "alternate" chains.
+ *
+ * ##### Example
+ *
+ * ```javascript
+ * var md = require('markdown-it')();
+ *
+ * md.inline.ruler.after('text', 'my_rule', function replace(state) {
+ * //...
+ * });
+ * ```
+ **/ Ruler.prototype.after = function(afterName, ruleName, fn, options) {
+ const index = this.__find__(afterName);
+ const opt = options || {};
+ if (index === -1) {
+ throw new Error("Parser rule not found: " + afterName);
+ }
+ this.__rules__.splice(index + 1, 0, {
+ name: ruleName,
+ enabled: true,
+ fn: fn,
+ alt: opt.alt || []
+ });
+ this.__cache__ = null;
+ };
+ /**
+ * Ruler.push(ruleName, fn [, options])
+ * - ruleName (String): name of added rule.
+ * - fn (Function): rule function.
+ * - options (Object): rule options (not mandatory).
+ *
+ * Push new rule to the end of chain. See also
+ * [[Ruler.before]], [[Ruler.after]].
+ *
+ * ##### Options:
+ *
+ * - __alt__ - array with names of "alternate" chains.
+ *
+ * ##### Example
+ *
+ * ```javascript
+ * var md = require('markdown-it')();
+ *
+ * md.core.ruler.push('my_rule', function replace(state) {
+ * //...
+ * });
+ * ```
+ **/ Ruler.prototype.push = function(ruleName, fn, options) {
+ const opt = options || {};
+ this.__rules__.push({
+ name: ruleName,
+ enabled: true,
+ fn: fn,
+ alt: opt.alt || []
+ });
+ this.__cache__ = null;
+ };
+ /**
+ * Ruler.enable(list [, ignoreInvalid]) -> Array
+ * - list (String|Array): list of rule names to enable.
+ * - ignoreInvalid (Boolean): set `true` to ignore errors when rule not found.
+ *
+ * Enable rules with given names. If any rule name not found - throw Error.
+ * Errors can be disabled by second param.
+ *
+ * Returns list of found rule names (if no exception happened).
+ *
+ * See also [[Ruler.disable]], [[Ruler.enableOnly]].
+ **/ Ruler.prototype.enable = function(list, ignoreInvalid) {
+ if (!Array.isArray(list)) {
+ list = [ list ];
+ }
+ const result = [];
+ // Search by name and enable
+ list.forEach((function(name) {
+ const idx = this.__find__(name);
+ if (idx < 0) {
+ if (ignoreInvalid) {
+ return;
+ }
+ throw new Error("Rules manager: invalid rule name " + name);
+ }
+ this.__rules__[idx].enabled = true;
+ result.push(name);
+ }), this);
+ this.__cache__ = null;
+ return result;
+ };
+ /**
+ * Ruler.enableOnly(list [, ignoreInvalid])
+ * - list (String|Array): list of rule names to enable (whitelist).
+ * - ignoreInvalid (Boolean): set `true` to ignore errors when rule not found.
+ *
+ * Enable rules with given names, and disable everything else. If any rule name
+ * not found - throw Error. Errors can be disabled by second param.
+ *
+ * See also [[Ruler.disable]], [[Ruler.enable]].
+ **/ Ruler.prototype.enableOnly = function(list, ignoreInvalid) {
+ if (!Array.isArray(list)) {
+ list = [ list ];
+ }
+ this.__rules__.forEach((function(rule) {
+ rule.enabled = false;
+ }));
+ this.enable(list, ignoreInvalid);
+ };
+ /**
+ * Ruler.disable(list [, ignoreInvalid]) -> Array
+ * - list (String|Array): list of rule names to disable.
+ * - ignoreInvalid (Boolean): set `true` to ignore errors when rule not found.
+ *
+ * Disable rules with given names. If any rule name not found - throw Error.
+ * Errors can be disabled by second param.
+ *
+ * Returns list of found rule names (if no exception happened).
+ *
+ * See also [[Ruler.enable]], [[Ruler.enableOnly]].
+ **/ Ruler.prototype.disable = function(list, ignoreInvalid) {
+ if (!Array.isArray(list)) {
+ list = [ list ];
+ }
+ const result = [];
+ // Search by name and disable
+ list.forEach((function(name) {
+ const idx = this.__find__(name);
+ if (idx < 0) {
+ if (ignoreInvalid) {
+ return;
+ }
+ throw new Error("Rules manager: invalid rule name " + name);
+ }
+ this.__rules__[idx].enabled = false;
+ result.push(name);
+ }), this);
+ this.__cache__ = null;
+ return result;
+ };
+ /**
+ * Ruler.getRules(chainName) -> Array
+ *
+ * Return array of active functions (rules) for given chain name. It analyzes
+ * rules configuration, compiles caches if not exists and returns result.
+ *
+ * Default chain name is `''` (empty string). It can't be skipped. That's
+ * done intentionally, to keep signature monomorphic for high speed.
+ **/ Ruler.prototype.getRules = function(chainName) {
+ if (this.__cache__ === null) {
+ this.__compile__();
+ }
+ // Chain can be empty, if rules disabled. But we still have to return Array.
+ return this.__cache__[chainName] || [];
+ };
+ // Token class
+ /**
+ * class Token
+ **/
+ /**
+ * new Token(type, tag, nesting)
+ *
+ * Create new token and fill passed properties.
+ **/ function Token(type, tag, nesting) {
+ /**
+ * Token#type -> String
+ *
+ * Type of the token (string, e.g. "paragraph_open")
+ **/
+ this.type = type;
+ /**
+ * Token#tag -> String
+ *
+ * html tag name, e.g. "p"
+ **/ this.tag = tag;
+ /**
+ * Token#attrs -> Array
+ *
+ * Html attributes. Format: `[ [ name1, value1 ], [ name2, value2 ] ]`
+ **/ this.attrs = null;
+ /**
+ * Token#map -> Array
+ *
+ * Source map info. Format: `[ line_begin, line_end ]`
+ **/ this.map = null;
+ /**
+ * Token#nesting -> Number
+ *
+ * Level change (number in {-1, 0, 1} set), where:
+ *
+ * - `1` means the tag is opening
+ * - `0` means the tag is self-closing
+ * - `-1` means the tag is closing
+ **/ this.nesting = nesting;
+ /**
+ * Token#level -> Number
+ *
+ * nesting level, the same as `state.level`
+ **/ this.level = 0;
+ /**
+ * Token#children -> Array
+ *
+ * An array of child nodes (inline and img tokens)
+ **/ this.children = null;
+ /**
+ * Token#content -> String
+ *
+ * In a case of self-closing tag (code, html, fence, etc.),
+ * it has contents of this tag.
+ **/ this.content = "";
+ /**
+ * Token#markup -> String
+ *
+ * '*' or '_' for emphasis, fence string for fence, etc.
+ **/ this.markup = "";
+ /**
+ * Token#info -> String
+ *
+ * Additional information:
+ *
+ * - Info string for "fence" tokens
+ * - The value "auto" for autolink "link_open" and "link_close" tokens
+ * - The string value of the item marker for ordered-list "list_item_open" tokens
+ **/ this.info = "";
+ /**
+ * Token#meta -> Object
+ *
+ * A place for plugins to store an arbitrary data
+ **/ this.meta = null;
+ /**
+ * Token#block -> Boolean
+ *
+ * True for block-level tokens, false for inline tokens.
+ * Used in renderer to calculate line breaks
+ **/ this.block = false;
+ /**
+ * Token#hidden -> Boolean
+ *
+ * If it's true, ignore this element when rendering. Used for tight lists
+ * to hide paragraphs.
+ **/ this.hidden = false;
+ }
+ /**
+ * Token.attrIndex(name) -> Number
+ *
+ * Search attribute index by name.
+ **/ Token.prototype.attrIndex = function attrIndex(name) {
+ if (!this.attrs) {
+ return -1;
+ }
+ const attrs = this.attrs;
+ for (let i = 0, len = attrs.length; i < len; i++) {
+ if (attrs[i][0] === name) {
+ return i;
+ }
+ }
+ return -1;
+ };
+ /**
+ * Token.attrPush(attrData)
+ *
+ * Add `[ name, value ]` attribute to list. Init attrs if necessary
+ **/ Token.prototype.attrPush = function attrPush(attrData) {
+ if (this.attrs) {
+ this.attrs.push(attrData);
+ } else {
+ this.attrs = [ attrData ];
+ }
+ };
+ /**
+ * Token.attrSet(name, value)
+ *
+ * Set `name` attribute to `value`. Override old value if exists.
+ **/ Token.prototype.attrSet = function attrSet(name, value) {
+ const idx = this.attrIndex(name);
+ const attrData = [ name, value ];
+ if (idx < 0) {
+ this.attrPush(attrData);
+ } else {
+ this.attrs[idx] = attrData;
+ }
+ };
+ /**
+ * Token.attrGet(name)
+ *
+ * Get the value of attribute `name`, or null if it does not exist.
+ **/ Token.prototype.attrGet = function attrGet(name) {
+ const idx = this.attrIndex(name);
+ let value = null;
+ if (idx >= 0) {
+ value = this.attrs[idx][1];
+ }
+ return value;
+ };
+ /**
+ * Token.attrJoin(name, value)
+ *
+ * Join value to existing attribute via space. Or create new attribute if not
+ * exists. Useful to operate with token classes.
+ **/ Token.prototype.attrJoin = function attrJoin(name, value) {
+ const idx = this.attrIndex(name);
+ if (idx < 0) {
+ this.attrPush([ name, value ]);
+ } else {
+ this.attrs[idx][1] = this.attrs[idx][1] + " " + value;
+ }
+ };
+ // Core state object
+
+ function StateCore(src, md, env) {
+ this.src = src;
+ this.env = env;
+ this.tokens = [];
+ this.inlineMode = false;
+ this.md = md;
+ // link to parser instance
+ }
+ // re-export Token class to use in core rules
+ StateCore.prototype.Token = Token;
+ // Normalize input string
+ // https://spec.commonmark.org/0.29/#line-ending
+ const NEWLINES_RE = /\r\n?|\n/g;
+ const NULL_RE = /\0/g;
+ function normalize(state) {
+ let str;
+ // Normalize newlines
+ str = state.src.replace(NEWLINES_RE, "\n");
+ // Replace NULL characters
+ str = str.replace(NULL_RE, "\ufffd");
+ state.src = str;
+ }
+ function block(state) {
+ let token;
+ if (state.inlineMode) {
+ token = new state.Token("inline", "", 0);
+ token.content = state.src;
+ token.map = [ 0, 1 ];
+ token.children = [];
+ state.tokens.push(token);
+ } else {
+ state.md.block.parse(state.src, state.md, state.env, state.tokens);
+ }
+ }
+ function inline(state) {
+ const tokens = state.tokens;
+ // Parse inlines
+ for (let i = 0, l = tokens.length; i < l; i++) {
+ const tok = tokens[i];
+ if (tok.type === "inline") {
+ state.md.inline.parse(tok.content, state.md, state.env, tok.children);
+ }
+ }
+ }
+ // Replace link-like texts with link nodes.
+
+ // Currently restricted by `md.validateLink()` to http/https/ftp
+
+ function isLinkOpen$1(str) {
+ return /^<a[>\s]/i.test(str);
+ }
+ function isLinkClose$1(str) {
+ return /^<\/a\s*>/i.test(str);
+ }
+ function linkify$1(state) {
+ const blockTokens = state.tokens;
+ if (!state.md.options.linkify) {
+ return;
+ }
+ for (let j = 0, l = blockTokens.length; j < l; j++) {
+ if (blockTokens[j].type !== "inline" || !state.md.linkify.pretest(blockTokens[j].content)) {
+ continue;
+ }
+ let tokens = blockTokens[j].children;
+ let htmlLinkLevel = 0;
+ // We scan from the end, to keep position when new tags added.
+ // Use reversed logic in links start/end match
+ for (let i = tokens.length - 1; i >= 0; i--) {
+ const currentToken = tokens[i];
+ // Skip content of markdown links
+ if (currentToken.type === "link_close") {
+ i--;
+ while (tokens[i].level !== currentToken.level && tokens[i].type !== "link_open") {
+ i--;
+ }
+ continue;
+ }
+ // Skip content of html tag links
+ if (currentToken.type === "html_inline") {
+ if (isLinkOpen$1(currentToken.content) && htmlLinkLevel > 0) {
+ htmlLinkLevel--;
+ }
+ if (isLinkClose$1(currentToken.content)) {
+ htmlLinkLevel++;
+ }
+ }
+ if (htmlLinkLevel > 0) {
+ continue;
+ }
+ if (currentToken.type === "text" && state.md.linkify.test(currentToken.content)) {
+ const text = currentToken.content;
+ let links = state.md.linkify.match(text);
+ // Now split string to nodes
+ const nodes = [];
+ let level = currentToken.level;
+ let lastPos = 0;
+ // forbid escape sequence at the start of the string,
+ // this avoids http\://example.com/ from being linkified as
+ // http:<a href="//example.com/">//example.com/</a>
+ if (links.length > 0 && links[0].index === 0 && i > 0 && tokens[i - 1].type === "text_special") {
+ links = links.slice(1);
+ }
+ for (let ln = 0; ln < links.length; ln++) {
+ const url = links[ln].url;
+ const fullUrl = state.md.normalizeLink(url);
+ if (!state.md.validateLink(fullUrl)) {
+ continue;
+ }
+ let urlText = links[ln].text;
+ // Linkifier might send raw hostnames like "example.com", where url
+ // starts with domain name. So we prepend http:// in those cases,
+ // and remove it afterwards.
+
+ if (!links[ln].schema) {
+ urlText = state.md.normalizeLinkText("http://" + urlText).replace(/^http:\/\//, "");
+ } else if (links[ln].schema === "mailto:" && !/^mailto:/i.test(urlText)) {
+ urlText = state.md.normalizeLinkText("mailto:" + urlText).replace(/^mailto:/, "");
+ } else {
+ urlText = state.md.normalizeLinkText(urlText);
+ }
+ const pos = links[ln].index;
+ if (pos > lastPos) {
+ const token = new state.Token("text", "", 0);
+ token.content = text.slice(lastPos, pos);
+ token.level = level;
+ nodes.push(token);
+ }
+ const token_o = new state.Token("link_open", "a", 1);
+ token_o.attrs = [ [ "href", fullUrl ] ];
+ token_o.level = level++;
+ token_o.markup = "linkify";
+ token_o.info = "auto";
+ nodes.push(token_o);
+ const token_t = new state.Token("text", "", 0);
+ token_t.content = urlText;
+ token_t.level = level;
+ nodes.push(token_t);
+ const token_c = new state.Token("link_close", "a", -1);
+ token_c.level = --level;
+ token_c.markup = "linkify";
+ token_c.info = "auto";
+ nodes.push(token_c);
+ lastPos = links[ln].lastIndex;
+ }
+ if (lastPos < text.length) {
+ const token = new state.Token("text", "", 0);
+ token.content = text.slice(lastPos);
+ token.level = level;
+ nodes.push(token);
+ }
+ // replace current node
+ blockTokens[j].children = tokens = arrayReplaceAt(tokens, i, nodes);
+ }
+ }
+ }
+ }
+ // Simple typographic replacements
+
+ // (c) (C) → ©
+ // (tm) (TM) → ™
+ // (r) (R) → ®
+ // +- → ±
+ // ... → … (also ?.... → ?.., !.... → !..)
+ // ???????? → ???, !!!!! → !!!, `,,` → `,`
+ // -- → &ndash;, --- → &mdash;
+
+ // TODO:
+ // - fractionals 1/2, 1/4, 3/4 -> ½, ¼, ¾
+ // - multiplications 2 x 4 -> 2 × 4
+ const RARE_RE = /\+-|\.\.|\?\?\?\?|!!!!|,,|--/;
+ // Workaround for phantomjs - need regex without /g flag,
+ // or root check will fail every second time
+ const SCOPED_ABBR_TEST_RE = /\((c|tm|r)\)/i;
+ const SCOPED_ABBR_RE = /\((c|tm|r)\)/gi;
+ const SCOPED_ABBR = {
+ c: "\xa9",
+ r: "\xae",
+ tm: "\u2122"
+ };
+ function replaceFn(match, name) {
+ return SCOPED_ABBR[name.toLowerCase()];
+ }
+ function replace_scoped(inlineTokens) {
+ let inside_autolink = 0;
+ for (let i = inlineTokens.length - 1; i >= 0; i--) {
+ const token = inlineTokens[i];
+ if (token.type === "text" && !inside_autolink) {
+ token.content = token.content.replace(SCOPED_ABBR_RE, replaceFn);
+ }
+ if (token.type === "link_open" && token.info === "auto") {
+ inside_autolink--;
+ }
+ if (token.type === "link_close" && token.info === "auto") {
+ inside_autolink++;
+ }
+ }
+ }
+ function replace_rare(inlineTokens) {
+ let inside_autolink = 0;
+ for (let i = inlineTokens.length - 1; i >= 0; i--) {
+ const token = inlineTokens[i];
+ if (token.type === "text" && !inside_autolink) {
+ if (RARE_RE.test(token.content)) {
+ token.content = token.content.replace(/\+-/g, "\xb1").replace(/\.{2,}/g, "\u2026").replace(/([?!])\u2026/g, "$1..").replace(/([?!]){4,}/g, "$1$1$1").replace(/,{2,}/g, ",").replace(/(^|[^-])---(?=[^-]|$)/gm, "$1\u2014").replace(/(^|\s)--(?=\s|$)/gm, "$1\u2013").replace(/(^|[^-\s])--(?=[^-\s]|$)/gm, "$1\u2013");
+ }
+ }
+ if (token.type === "link_open" && token.info === "auto") {
+ inside_autolink--;
+ }
+ if (token.type === "link_close" && token.info === "auto") {
+ inside_autolink++;
+ }
+ }
+ }
+ function replace(state) {
+ let blkIdx;
+ if (!state.md.options.typographer) {
+ return;
+ }
+ for (blkIdx = state.tokens.length - 1; blkIdx >= 0; blkIdx--) {
+ if (state.tokens[blkIdx].type !== "inline") {
+ continue;
+ }
+ if (SCOPED_ABBR_TEST_RE.test(state.tokens[blkIdx].content)) {
+ replace_scoped(state.tokens[blkIdx].children);
+ }
+ if (RARE_RE.test(state.tokens[blkIdx].content)) {
+ replace_rare(state.tokens[blkIdx].children);
+ }
+ }
+ }
+ // Convert straight quotation marks to typographic ones
+
+ const QUOTE_TEST_RE = /['"]/;
+ const QUOTE_RE = /['"]/g;
+ const APOSTROPHE = "\u2019";
+ /* ’ */ function replaceAt(str, index, ch) {
+ return str.slice(0, index) + ch + str.slice(index + 1);
+ }
+ function process_inlines(tokens, state) {
+ let j;
+ const stack = [];
+ for (let i = 0; i < tokens.length; i++) {
+ const token = tokens[i];
+ const thisLevel = tokens[i].level;
+ for (j = stack.length - 1; j >= 0; j--) {
+ if (stack[j].level <= thisLevel) {
+ break;
+ }
+ }
+ stack.length = j + 1;
+ if (token.type !== "text") {
+ continue;
+ }
+ let text = token.content;
+ let pos = 0;
+ let max = text.length;
+ /* eslint no-labels:0,block-scoped-var:0 */ OUTER: while (pos < max) {
+ QUOTE_RE.lastIndex = pos;
+ const t = QUOTE_RE.exec(text);
+ if (!t) {
+ break;
+ }
+ let canOpen = true;
+ let canClose = true;
+ pos = t.index + 1;
+ const isSingle = t[0] === "'";
+ // Find previous character,
+ // default to space if it's the beginning of the line
+
+ let lastChar = 32;
+ if (t.index - 1 >= 0) {
+ lastChar = text.charCodeAt(t.index - 1);
+ } else {
+ for (j = i - 1; j >= 0; j--) {
+ if (tokens[j].type === "softbreak" || tokens[j].type === "hardbreak") break;
+ // lastChar defaults to 0x20
+ if (!tokens[j].content) continue;
+ // should skip all tokens except 'text', 'html_inline' or 'code_inline'
+ lastChar = tokens[j].content.charCodeAt(tokens[j].content.length - 1);
+ break;
+ }
+ }
+ // Find next character,
+ // default to space if it's the end of the line
+
+ let nextChar = 32;
+ if (pos < max) {
+ nextChar = text.charCodeAt(pos);
+ } else {
+ for (j = i + 1; j < tokens.length; j++) {
+ if (tokens[j].type === "softbreak" || tokens[j].type === "hardbreak") break;
+ // nextChar defaults to 0x20
+ if (!tokens[j].content) continue;
+ // should skip all tokens except 'text', 'html_inline' or 'code_inline'
+ nextChar = tokens[j].content.charCodeAt(0);
+ break;
+ }
+ }
+ const isLastPunctChar = isMdAsciiPunct(lastChar) || isPunctChar(String.fromCharCode(lastChar));
+ const isNextPunctChar = isMdAsciiPunct(nextChar) || isPunctChar(String.fromCharCode(nextChar));
+ const isLastWhiteSpace = isWhiteSpace(lastChar);
+ const isNextWhiteSpace = isWhiteSpace(nextChar);
+ if (isNextWhiteSpace) {
+ canOpen = false;
+ } else if (isNextPunctChar) {
+ if (!(isLastWhiteSpace || isLastPunctChar)) {
+ canOpen = false;
+ }
+ }
+ if (isLastWhiteSpace) {
+ canClose = false;
+ } else if (isLastPunctChar) {
+ if (!(isNextWhiteSpace || isNextPunctChar)) {
+ canClose = false;
+ }
+ }
+ if (nextChar === 34 /* " */ && t[0] === '"') {
+ if (lastChar >= 48 /* 0 */ && lastChar <= 57 /* 9 */) {
+ // special case: 1"" - count first quote as an inch
+ canClose = canOpen = false;
+ }
+ }
+ if (canOpen && canClose) {
+ // Replace quotes in the middle of punctuation sequence, but not
+ // in the middle of the words, i.e.:
+ // 1. foo " bar " baz - not replaced
+ // 2. foo-"-bar-"-baz - replaced
+ // 3. foo"bar"baz - not replaced
+ canOpen = isLastPunctChar;
+ canClose = isNextPunctChar;
+ }
+ if (!canOpen && !canClose) {
+ // middle of word
+ if (isSingle) {
+ token.content = replaceAt(token.content, t.index, APOSTROPHE);
+ }
+ continue;
+ }
+ if (canClose) {
+ // this could be a closing quote, rewind the stack to get a match
+ for (j = stack.length - 1; j >= 0; j--) {
+ let item = stack[j];
+ if (stack[j].level < thisLevel) {
+ break;
+ }
+ if (item.single === isSingle && stack[j].level === thisLevel) {
+ item = stack[j];
+ let openQuote;
+ let closeQuote;
+ if (isSingle) {
+ openQuote = state.md.options.quotes[2];
+ closeQuote = state.md.options.quotes[3];
+ } else {
+ openQuote = state.md.options.quotes[0];
+ closeQuote = state.md.options.quotes[1];
+ }
+ // replace token.content *before* tokens[item.token].content,
+ // because, if they are pointing at the same token, replaceAt
+ // could mess up indices when quote length != 1
+ token.content = replaceAt(token.content, t.index, closeQuote);
+ tokens[item.token].content = replaceAt(tokens[item.token].content, item.pos, openQuote);
+ pos += closeQuote.length - 1;
+ if (item.token === i) {
+ pos += openQuote.length - 1;
+ }
+ text = token.content;
+ max = text.length;
+ stack.length = j;
+ continue OUTER;
+ }
+ }
+ }
+ if (canOpen) {
+ stack.push({
+ token: i,
+ pos: t.index,
+ single: isSingle,
+ level: thisLevel
+ });
+ } else if (canClose && isSingle) {
+ token.content = replaceAt(token.content, t.index, APOSTROPHE);
+ }
+ }
+ }
+ }
+ function smartquotes(state) {
+ /* eslint max-depth:0 */
+ if (!state.md.options.typographer) {
+ return;
+ }
+ for (let blkIdx = state.tokens.length - 1; blkIdx >= 0; blkIdx--) {
+ if (state.tokens[blkIdx].type !== "inline" || !QUOTE_TEST_RE.test(state.tokens[blkIdx].content)) {
+ continue;
+ }
+ process_inlines(state.tokens[blkIdx].children, state);
+ }
+ }
+ // Join raw text tokens with the rest of the text
+
+ // This is set as a separate rule to provide an opportunity for plugins
+ // to run text replacements after text join, but before escape join.
+
+ // For example, `\:)` shouldn't be replaced with an emoji.
+
+ function text_join(state) {
+ let curr, last;
+ const blockTokens = state.tokens;
+ const l = blockTokens.length;
+ for (let j = 0; j < l; j++) {
+ if (blockTokens[j].type !== "inline") continue;
+ const tokens = blockTokens[j].children;
+ const max = tokens.length;
+ for (curr = 0; curr < max; curr++) {
+ if (tokens[curr].type === "text_special") {
+ tokens[curr].type = "text";
+ }
+ }
+ for (curr = last = 0; curr < max; curr++) {
+ if (tokens[curr].type === "text" && curr + 1 < max && tokens[curr + 1].type === "text") {
+ // collapse two adjacent text nodes
+ tokens[curr + 1].content = tokens[curr].content + tokens[curr + 1].content;
+ } else {
+ if (curr !== last) {
+ tokens[last] = tokens[curr];
+ }
+ last++;
+ }
+ }
+ if (curr !== last) {
+ tokens.length = last;
+ }
+ }
+ }
+ /** internal
+ * class Core
+ *
+ * Top-level rules executor. Glues block/inline parsers and does intermediate
+ * transformations.
+ **/ const _rules$2 = [ [ "normalize", normalize ], [ "block", block ], [ "inline", inline ], [ "linkify", linkify$1 ], [ "replacements", replace ], [ "smartquotes", smartquotes ],
+ // `text_join` finds `text_special` tokens (for escape sequences)
+ // and joins them with the rest of the text
+ [ "text_join", text_join ] ];
+ /**
+ * new Core()
+ **/ function Core() {
+ /**
+ * Core#ruler -> Ruler
+ *
+ * [[Ruler]] instance. Keep configuration of core rules.
+ **/
+ this.ruler = new Ruler;
+ for (let i = 0; i < _rules$2.length; i++) {
+ this.ruler.push(_rules$2[i][0], _rules$2[i][1]);
+ }
+ }
+ /**
+ * Core.process(state)
+ *
+ * Executes core chain rules.
+ **/ Core.prototype.process = function(state) {
+ const rules = this.ruler.getRules("");
+ for (let i = 0, l = rules.length; i < l; i++) {
+ rules[i](state);
+ }
+ };
+ Core.prototype.State = StateCore;
+ // Parser state class
+ function StateBlock(src, md, env, tokens) {
+ this.src = src;
+ // link to parser instance
+ this.md = md;
+ this.env = env;
+
+ // Internal state vartiables
+
+ this.tokens = tokens;
+ this.bMarks = [];
+ // line begin offsets for fast jumps
+ this.eMarks = [];
+ // line end offsets for fast jumps
+ this.tShift = [];
+ // offsets of the first non-space characters (tabs not expanded)
+ this.sCount = [];
+ // indents for each line (tabs expanded)
+ // An amount of virtual spaces (tabs expanded) between beginning
+ // of each line (bMarks) and real beginning of that line.
+
+ // It exists only as a hack because blockquotes override bMarks
+ // losing information in the process.
+
+ // It's used only when expanding tabs, you can think about it as
+ // an initial tab length, e.g. bsCount=21 applied to string `\t123`
+ // means first tab should be expanded to 4-21%4 === 3 spaces.
+
+ this.bsCount = [];
+ // block parser variables
+ // required block content indent (for example, if we are
+ // inside a list, it would be positioned after list marker)
+ this.blkIndent = 0;
+ this.line = 0;
+ // line index in src
+ this.lineMax = 0;
+ // lines count
+ this.tight = false;
+ // loose/tight mode for lists
+ this.ddIndent = -1;
+ // indent of the current dd block (-1 if there isn't any)
+ this.listIndent = -1;
+ // indent of the current list block (-1 if there isn't any)
+ // can be 'blockquote', 'list', 'root', 'paragraph' or 'reference'
+ // used in lists to determine if they interrupt a paragraph
+ this.parentType = "root";
+ this.level = 0;
+ // Create caches
+ // Generate markers.
+ const s = this.src;
+ for (let start = 0, pos = 0, indent = 0, offset = 0, len = s.length, indent_found = false; pos < len; pos++) {
+ const ch = s.charCodeAt(pos);
+ if (!indent_found) {
+ if (isSpace(ch)) {
+ indent++;
+ if (ch === 9) {
+ offset += 4 - offset % 4;
+ } else {
+ offset++;
+ }
+ continue;
+ } else {
+ indent_found = true;
+ }
+ }
+ if (ch === 10 || pos === len - 1) {
+ if (ch !== 10) {
+ pos++;
+ }
+ this.bMarks.push(start);
+ this.eMarks.push(pos);
+ this.tShift.push(indent);
+ this.sCount.push(offset);
+ this.bsCount.push(0);
+ indent_found = false;
+ indent = 0;
+ offset = 0;
+ start = pos + 1;
+ }
+ }
+ // Push fake entry to simplify cache bounds checks
+ this.bMarks.push(s.length);
+ this.eMarks.push(s.length);
+ this.tShift.push(0);
+ this.sCount.push(0);
+ this.bsCount.push(0);
+ this.lineMax = this.bMarks.length - 1;
+ // don't count last fake line
+ }
+ // Push new token to "stream".
+
+ StateBlock.prototype.push = function(type, tag, nesting) {
+ const token = new Token(type, tag, nesting);
+ token.block = true;
+ if (nesting < 0) this.level--;
+ // closing tag
+ token.level = this.level;
+ if (nesting > 0) this.level++;
+ // opening tag
+ this.tokens.push(token);
+ return token;
+ };
+ StateBlock.prototype.isEmpty = function isEmpty(line) {
+ return this.bMarks[line] + this.tShift[line] >= this.eMarks[line];
+ };
+ StateBlock.prototype.skipEmptyLines = function skipEmptyLines(from) {
+ for (let max = this.lineMax; from < max; from++) {
+ if (this.bMarks[from] + this.tShift[from] < this.eMarks[from]) {
+ break;
+ }
+ }
+ return from;
+ };
+ // Skip spaces from given position.
+ StateBlock.prototype.skipSpaces = function skipSpaces(pos) {
+ for (let max = this.src.length; pos < max; pos++) {
+ const ch = this.src.charCodeAt(pos);
+ if (!isSpace(ch)) {
+ break;
+ }
+ }
+ return pos;
+ };
+ // Skip spaces from given position in reverse.
+ StateBlock.prototype.skipSpacesBack = function skipSpacesBack(pos, min) {
+ if (pos <= min) {
+ return pos;
+ }
+ while (pos > min) {
+ if (!isSpace(this.src.charCodeAt(--pos))) {
+ return pos + 1;
+ }
+ }
+ return pos;
+ };
+ // Skip char codes from given position
+ StateBlock.prototype.skipChars = function skipChars(pos, code) {
+ for (let max = this.src.length; pos < max; pos++) {
+ if (this.src.charCodeAt(pos) !== code) {
+ break;
+ }
+ }
+ return pos;
+ };
+ // Skip char codes reverse from given position - 1
+ StateBlock.prototype.skipCharsBack = function skipCharsBack(pos, code, min) {
+ if (pos <= min) {
+ return pos;
+ }
+ while (pos > min) {
+ if (code !== this.src.charCodeAt(--pos)) {
+ return pos + 1;
+ }
+ }
+ return pos;
+ };
+ // cut lines range from source.
+ StateBlock.prototype.getLines = function getLines(begin, end, indent, keepLastLF) {
+ if (begin >= end) {
+ return "";
+ }
+ const queue = new Array(end - begin);
+ for (let i = 0, line = begin; line < end; line++, i++) {
+ let lineIndent = 0;
+ const lineStart = this.bMarks[line];
+ let first = lineStart;
+ let last;
+ if (line + 1 < end || keepLastLF) {
+ // No need for bounds check because we have fake entry on tail.
+ last = this.eMarks[line] + 1;
+ } else {
+ last = this.eMarks[line];
+ }
+ while (first < last && lineIndent < indent) {
+ const ch = this.src.charCodeAt(first);
+ if (isSpace(ch)) {
+ if (ch === 9) {
+ lineIndent += 4 - (lineIndent + this.bsCount[line]) % 4;
+ } else {
+ lineIndent++;
+ }
+ } else if (first - lineStart < this.tShift[line]) {
+ // patched tShift masked characters to look like spaces (blockquotes, list markers)
+ lineIndent++;
+ } else {
+ break;
+ }
+ first++;
+ }
+ if (lineIndent > indent) {
+ // partially expanding tabs in code blocks, e.g '\t\tfoobar'
+ // with indent=2 becomes ' \tfoobar'
+ queue[i] = new Array(lineIndent - indent + 1).join(" ") + this.src.slice(first, last);
+ } else {
+ queue[i] = this.src.slice(first, last);
+ }
+ }
+ return queue.join("");
+ };
+ // re-export Token class to use in block rules
+ StateBlock.prototype.Token = Token;
+ // GFM table, https://github.github.com/gfm/#tables-extension-
+ // Limit the amount of empty autocompleted cells in a table,
+ // see https://github.com/markdown-it/markdown-it/issues/1000,
+
+ // Both pulldown-cmark and commonmark-hs limit the number of cells this way to ~200k.
+ // We set it to 65k, which can expand user input by a factor of x370
+ // (256x256 square is 1.8kB expanded into 650kB).
+ const MAX_AUTOCOMPLETED_CELLS = 65536;
+ function getLine(state, line) {
+ const pos = state.bMarks[line] + state.tShift[line];
+ const max = state.eMarks[line];
+ return state.src.slice(pos, max);
+ }
+ function escapedSplit(str) {
+ const result = [];
+ const max = str.length;
+ let pos = 0;
+ let ch = str.charCodeAt(pos);
+ let isEscaped = false;
+ let lastPos = 0;
+ let current = "";
+ while (pos < max) {
+ if (ch === 124 /* | */) {
+ if (!isEscaped) {
+ // pipe separating cells, '|'
+ result.push(current + str.substring(lastPos, pos));
+ current = "";
+ lastPos = pos + 1;
+ } else {
+ // escaped pipe, '\|'
+ current += str.substring(lastPos, pos - 1);
+ lastPos = pos;
+ }
+ }
+ isEscaped = ch === 92 /* \ */;
+ pos++;
+ ch = str.charCodeAt(pos);
+ }
+ result.push(current + str.substring(lastPos));
+ return result;
+ }
+ function table(state, startLine, endLine, silent) {
+ // should have at least two lines
+ if (startLine + 2 > endLine) {
+ return false;
+ }
+ let nextLine = startLine + 1;
+ if (state.sCount[nextLine] < state.blkIndent) {
+ return false;
+ }
+ // if it's indented more than 3 spaces, it should be a code block
+ if (state.sCount[nextLine] - state.blkIndent >= 4) {
+ return false;
+ }
+ // first character of the second line should be '|', '-', ':',
+ // and no other characters are allowed but spaces;
+ // basically, this is the equivalent of /^[-:|][-:|\s]*$/ regexp
+ let pos = state.bMarks[nextLine] + state.tShift[nextLine];
+ if (pos >= state.eMarks[nextLine]) {
+ return false;
+ }
+ const firstCh = state.src.charCodeAt(pos++);
+ if (firstCh !== 124 /* | */ && firstCh !== 45 /* - */ && firstCh !== 58 /* : */) {
+ return false;
+ }
+ if (pos >= state.eMarks[nextLine]) {
+ return false;
+ }
+ const secondCh = state.src.charCodeAt(pos++);
+ if (secondCh !== 124 /* | */ && secondCh !== 45 /* - */ && secondCh !== 58 /* : */ && !isSpace(secondCh)) {
+ return false;
+ }
+ // if first character is '-', then second character must not be a space
+ // (due to parsing ambiguity with list)
+ if (firstCh === 45 /* - */ && isSpace(secondCh)) {
+ return false;
+ }
+ while (pos < state.eMarks[nextLine]) {
+ const ch = state.src.charCodeAt(pos);
+ if (ch !== 124 /* | */ && ch !== 45 /* - */ && ch !== 58 /* : */ && !isSpace(ch)) {
+ return false;
+ }
+ pos++;
+ }
+ let lineText = getLine(state, startLine + 1);
+ let columns = lineText.split("|");
+ const aligns = [];
+ for (let i = 0; i < columns.length; i++) {
+ const t = columns[i].trim();
+ if (!t) {
+ // allow empty columns before and after table, but not in between columns;
+ // e.g. allow ` |---| `, disallow ` ---||--- `
+ if (i === 0 || i === columns.length - 1) {
+ continue;
+ } else {
+ return false;
+ }
+ }
+ if (!/^:?-+:?$/.test(t)) {
+ return false;
+ }
+ if (t.charCodeAt(t.length - 1) === 58 /* : */) {
+ aligns.push(t.charCodeAt(0) === 58 /* : */ ? "center" : "right");
+ } else if (t.charCodeAt(0) === 58 /* : */) {
+ aligns.push("left");
+ } else {
+ aligns.push("");
+ }
+ }
+ lineText = getLine(state, startLine).trim();
+ if (lineText.indexOf("|") === -1) {
+ return false;
+ }
+ if (state.sCount[startLine] - state.blkIndent >= 4) {
+ return false;
+ }
+ columns = escapedSplit(lineText);
+ if (columns.length && columns[0] === "") columns.shift();
+ if (columns.length && columns[columns.length - 1] === "") columns.pop();
+ // header row will define an amount of columns in the entire table,
+ // and align row should be exactly the same (the rest of the rows can differ)
+ const columnCount = columns.length;
+ if (columnCount === 0 || columnCount !== aligns.length) {
+ return false;
+ }
+ if (silent) {
+ return true;
+ }
+ const oldParentType = state.parentType;
+ state.parentType = "table";
+ // use 'blockquote' lists for termination because it's
+ // the most similar to tables
+ const terminatorRules = state.md.block.ruler.getRules("blockquote");
+ const token_to = state.push("table_open", "table", 1);
+ const tableLines = [ startLine, 0 ];
+ token_to.map = tableLines;
+ const token_tho = state.push("thead_open", "thead", 1);
+ token_tho.map = [ startLine, startLine + 1 ];
+ const token_htro = state.push("tr_open", "tr", 1);
+ token_htro.map = [ startLine, startLine + 1 ];
+ for (let i = 0; i < columns.length; i++) {
+ const token_ho = state.push("th_open", "th", 1);
+ if (aligns[i]) {
+ token_ho.attrs = [ [ "style", "text-align:" + aligns[i] ] ];
+ }
+ const token_il = state.push("inline", "", 0);
+ token_il.content = columns[i].trim();
+ token_il.children = [];
+ state.push("th_close", "th", -1);
+ }
+ state.push("tr_close", "tr", -1);
+ state.push("thead_close", "thead", -1);
+ let tbodyLines;
+ let autocompletedCells = 0;
+ for (nextLine = startLine + 2; nextLine < endLine; nextLine++) {
+ if (state.sCount[nextLine] < state.blkIndent) {
+ break;
+ }
+ let terminate = false;
+ for (let i = 0, l = terminatorRules.length; i < l; i++) {
+ if (terminatorRules[i](state, nextLine, endLine, true)) {
+ terminate = true;
+ break;
+ }
+ }
+ if (terminate) {
+ break;
+ }
+ lineText = getLine(state, nextLine).trim();
+ if (!lineText) {
+ break;
+ }
+ if (state.sCount[nextLine] - state.blkIndent >= 4) {
+ break;
+ }
+ columns = escapedSplit(lineText);
+ if (columns.length && columns[0] === "") columns.shift();
+ if (columns.length && columns[columns.length - 1] === "") columns.pop();
+ // note: autocomplete count can be negative if user specifies more columns than header,
+ // but that does not affect intended use (which is limiting expansion)
+ autocompletedCells += columnCount - columns.length;
+ if (autocompletedCells > MAX_AUTOCOMPLETED_CELLS) {
+ break;
+ }
+ if (nextLine === startLine + 2) {
+ const token_tbo = state.push("tbody_open", "tbody", 1);
+ token_tbo.map = tbodyLines = [ startLine + 2, 0 ];
+ }
+ const token_tro = state.push("tr_open", "tr", 1);
+ token_tro.map = [ nextLine, nextLine + 1 ];
+ for (let i = 0; i < columnCount; i++) {
+ const token_tdo = state.push("td_open", "td", 1);
+ if (aligns[i]) {
+ token_tdo.attrs = [ [ "style", "text-align:" + aligns[i] ] ];
+ }
+ const token_il = state.push("inline", "", 0);
+ token_il.content = columns[i] ? columns[i].trim() : "";
+ token_il.children = [];
+ state.push("td_close", "td", -1);
+ }
+ state.push("tr_close", "tr", -1);
+ }
+ if (tbodyLines) {
+ state.push("tbody_close", "tbody", -1);
+ tbodyLines[1] = nextLine;
+ }
+ state.push("table_close", "table", -1);
+ tableLines[1] = nextLine;
+ state.parentType = oldParentType;
+ state.line = nextLine;
+ return true;
+ }
+ // Code block (4 spaces padded)
+ function code(state, startLine, endLine /*, silent */) {
+ if (state.sCount[startLine] - state.blkIndent < 4) {
+ return false;
+ }
+ let nextLine = startLine + 1;
+ let last = nextLine;
+ while (nextLine < endLine) {
+ if (state.isEmpty(nextLine)) {
+ nextLine++;
+ continue;
+ }
+ if (state.sCount[nextLine] - state.blkIndent >= 4) {
+ nextLine++;
+ last = nextLine;
+ continue;
+ }
+ break;
+ }
+ state.line = last;
+ const token = state.push("code_block", "code", 0);
+ token.content = state.getLines(startLine, last, 4 + state.blkIndent, false) + "\n";
+ token.map = [ startLine, state.line ];
+ return true;
+ }
+ // fences (``` lang, ~~~ lang)
+ function fence(state, startLine, endLine, silent) {
+ let pos = state.bMarks[startLine] + state.tShift[startLine];
+ let max = state.eMarks[startLine];
+ // if it's indented more than 3 spaces, it should be a code block
+ if (state.sCount[startLine] - state.blkIndent >= 4) {
+ return false;
+ }
+ if (pos + 3 > max) {
+ return false;
+ }
+ const marker = state.src.charCodeAt(pos);
+ if (marker !== 126 /* ~ */ && marker !== 96 /* ` */) {
+ return false;
+ }
+ // scan marker length
+ let mem = pos;
+ pos = state.skipChars(pos, marker);
+ let len = pos - mem;
+ if (len < 3) {
+ return false;
+ }
+ const markup = state.src.slice(mem, pos);
+ const params = state.src.slice(pos, max);
+ if (marker === 96 /* ` */) {
+ if (params.indexOf(String.fromCharCode(marker)) >= 0) {
+ return false;
+ }
+ }
+ // Since start is found, we can report success here in validation mode
+ if (silent) {
+ return true;
+ }
+ // search end of block
+ let nextLine = startLine;
+ let haveEndMarker = false;
+ for (;;) {
+ nextLine++;
+ if (nextLine >= endLine) {
+ // unclosed block should be autoclosed by end of document.
+ // also block seems to be autoclosed by end of parent
+ break;
+ }
+ pos = mem = state.bMarks[nextLine] + state.tShift[nextLine];
+ max = state.eMarks[nextLine];
+ if (pos < max && state.sCount[nextLine] < state.blkIndent) {
+ // non-empty line with negative indent should stop the list:
+ // - ```
+ // test
+ break;
+ }
+ if (state.src.charCodeAt(pos) !== marker) {
+ continue;
+ }
+ if (state.sCount[nextLine] - state.blkIndent >= 4) {
+ // closing fence should be indented less than 4 spaces
+ continue;
+ }
+ pos = state.skipChars(pos, marker);
+ // closing code fence must be at least as long as the opening one
+ if (pos - mem < len) {
+ continue;
+ }
+ // make sure tail has spaces only
+ pos = state.skipSpaces(pos);
+ if (pos < max) {
+ continue;
+ }
+ haveEndMarker = true;
+ // found!
+ break;
+ }
+ // If a fence has heading spaces, they should be removed from its inner block
+ len = state.sCount[startLine];
+ state.line = nextLine + (haveEndMarker ? 1 : 0);
+ const token = state.push("fence", "code", 0);
+ token.info = params;
+ token.content = state.getLines(startLine + 1, nextLine, len, true);
+ token.markup = markup;
+ token.map = [ startLine, state.line ];
+ return true;
+ }
+ // Block quotes
+ function blockquote(state, startLine, endLine, silent) {
+ let pos = state.bMarks[startLine] + state.tShift[startLine];
+ let max = state.eMarks[startLine];
+ const oldLineMax = state.lineMax;
+ // if it's indented more than 3 spaces, it should be a code block
+ if (state.sCount[startLine] - state.blkIndent >= 4) {
+ return false;
+ }
+ // check the block quote marker
+ if (state.src.charCodeAt(pos) !== 62 /* > */) {
+ return false;
+ }
+ // we know that it's going to be a valid blockquote,
+ // so no point trying to find the end of it in silent mode
+ if (silent) {
+ return true;
+ }
+ const oldBMarks = [];
+ const oldBSCount = [];
+ const oldSCount = [];
+ const oldTShift = [];
+ const terminatorRules = state.md.block.ruler.getRules("blockquote");
+ const oldParentType = state.parentType;
+ state.parentType = "blockquote";
+ let lastLineEmpty = false;
+ let nextLine;
+ // Search the end of the block
+
+ // Block ends with either:
+ // 1. an empty line outside:
+ // ```
+ // > test
+
+ // ```
+ // 2. an empty line inside:
+ // ```
+ // >
+ // test
+ // ```
+ // 3. another tag:
+ // ```
+ // > test
+ // - - -
+ // ```
+ for (nextLine = startLine; nextLine < endLine; nextLine++) {
+ // check if it's outdented, i.e. it's inside list item and indented
+ // less than said list item:
+ // ```
+ // 1. anything
+ // > current blockquote
+ // 2. checking this line
+ // ```
+ const isOutdented = state.sCount[nextLine] < state.blkIndent;
+ pos = state.bMarks[nextLine] + state.tShift[nextLine];
+ max = state.eMarks[nextLine];
+ if (pos >= max) {
+ // Case 1: line is not inside the blockquote, and this line is empty.
+ break;
+ }
+ if (state.src.charCodeAt(pos++) === 62 /* > */ && !isOutdented) {
+ // This line is inside the blockquote.
+ // set offset past spaces and ">"
+ let initial = state.sCount[nextLine] + 1;
+ let spaceAfterMarker;
+ let adjustTab;
+ // skip one optional space after '>'
+ if (state.src.charCodeAt(pos) === 32 /* space */) {
+ // ' > test '
+ // ^ -- position start of line here:
+ pos++;
+ initial++;
+ adjustTab = false;
+ spaceAfterMarker = true;
+ } else if (state.src.charCodeAt(pos) === 9 /* tab */) {
+ spaceAfterMarker = true;
+ if ((state.bsCount[nextLine] + initial) % 4 === 3) {
+ // ' >\t test '
+ // ^ -- position start of line here (tab has width===1)
+ pos++;
+ initial++;
+ adjustTab = false;
+ } else {
+ // ' >\t test '
+ // ^ -- position start of line here + shift bsCount slightly
+ // to make extra space appear
+ adjustTab = true;
+ }
+ } else {
+ spaceAfterMarker = false;
+ }
+ let offset = initial;
+ oldBMarks.push(state.bMarks[nextLine]);
+ state.bMarks[nextLine] = pos;
+ while (pos < max) {
+ const ch = state.src.charCodeAt(pos);
+ if (isSpace(ch)) {
+ if (ch === 9) {
+ offset += 4 - (offset + state.bsCount[nextLine] + (adjustTab ? 1 : 0)) % 4;
+ } else {
+ offset++;
+ }
+ } else {
+ break;
+ }
+ pos++;
+ }
+ lastLineEmpty = pos >= max;
+ oldBSCount.push(state.bsCount[nextLine]);
+ state.bsCount[nextLine] = state.sCount[nextLine] + 1 + (spaceAfterMarker ? 1 : 0);
+ oldSCount.push(state.sCount[nextLine]);
+ state.sCount[nextLine] = offset - initial;
+ oldTShift.push(state.tShift[nextLine]);
+ state.tShift[nextLine] = pos - state.bMarks[nextLine];
+ continue;
+ }
+ // Case 2: line is not inside the blockquote, and the last line was empty.
+ if (lastLineEmpty) {
+ break;
+ }
+ // Case 3: another tag found.
+ let terminate = false;
+ for (let i = 0, l = terminatorRules.length; i < l; i++) {
+ if (terminatorRules[i](state, nextLine, endLine, true)) {
+ terminate = true;
+ break;
+ }
+ }
+ if (terminate) {
+ // Quirk to enforce "hard termination mode" for paragraphs;
+ // normally if you call `tokenize(state, startLine, nextLine)`,
+ // paragraphs will look below nextLine for paragraph continuation,
+ // but if blockquote is terminated by another tag, they shouldn't
+ state.lineMax = nextLine;
+ if (state.blkIndent !== 0) {
+ // state.blkIndent was non-zero, we now set it to zero,
+ // so we need to re-calculate all offsets to appear as
+ // if indent wasn't changed
+ oldBMarks.push(state.bMarks[nextLine]);
+ oldBSCount.push(state.bsCount[nextLine]);
+ oldTShift.push(state.tShift[nextLine]);
+ oldSCount.push(state.sCount[nextLine]);
+ state.sCount[nextLine] -= state.blkIndent;
+ }
+ break;
+ }
+ oldBMarks.push(state.bMarks[nextLine]);
+ oldBSCount.push(state.bsCount[nextLine]);
+ oldTShift.push(state.tShift[nextLine]);
+ oldSCount.push(state.sCount[nextLine]);
+ // A negative indentation means that this is a paragraph continuation
+
+ state.sCount[nextLine] = -1;
+ }
+ const oldIndent = state.blkIndent;
+ state.blkIndent = 0;
+ const token_o = state.push("blockquote_open", "blockquote", 1);
+ token_o.markup = ">";
+ const lines = [ startLine, 0 ];
+ token_o.map = lines;
+ state.md.block.tokenize(state, startLine, nextLine);
+ const token_c = state.push("blockquote_close", "blockquote", -1);
+ token_c.markup = ">";
+ state.lineMax = oldLineMax;
+ state.parentType = oldParentType;
+ lines[1] = state.line;
+ // Restore original tShift; this might not be necessary since the parser
+ // has already been here, but just to make sure we can do that.
+ for (let i = 0; i < oldTShift.length; i++) {
+ state.bMarks[i + startLine] = oldBMarks[i];
+ state.tShift[i + startLine] = oldTShift[i];
+ state.sCount[i + startLine] = oldSCount[i];
+ state.bsCount[i + startLine] = oldBSCount[i];
+ }
+ state.blkIndent = oldIndent;
+ return true;
+ }
+ // Horizontal rule
+ function hr(state, startLine, endLine, silent) {
+ const max = state.eMarks[startLine];
+ // if it's indented more than 3 spaces, it should be a code block
+ if (state.sCount[startLine] - state.blkIndent >= 4) {
+ return false;
+ }
+ let pos = state.bMarks[startLine] + state.tShift[startLine];
+ const marker = state.src.charCodeAt(pos++);
+ // Check hr marker
+ if (marker !== 42 /* * */ && marker !== 45 /* - */ && marker !== 95 /* _ */) {
+ return false;
+ }
+ // markers can be mixed with spaces, but there should be at least 3 of them
+ let cnt = 1;
+ while (pos < max) {
+ const ch = state.src.charCodeAt(pos++);
+ if (ch !== marker && !isSpace(ch)) {
+ return false;
+ }
+ if (ch === marker) {
+ cnt++;
+ }
+ }
+ if (cnt < 3) {
+ return false;
+ }
+ if (silent) {
+ return true;
+ }
+ state.line = startLine + 1;
+ const token = state.push("hr", "hr", 0);
+ token.map = [ startLine, state.line ];
+ token.markup = Array(cnt + 1).join(String.fromCharCode(marker));
+ return true;
+ }
+ // Lists
+ // Search `[-+*][\n ]`, returns next pos after marker on success
+ // or -1 on fail.
+ function skipBulletListMarker(state, startLine) {
+ const max = state.eMarks[startLine];
+ let pos = state.bMarks[startLine] + state.tShift[startLine];
+ const marker = state.src.charCodeAt(pos++);
+ // Check bullet
+ if (marker !== 42 /* * */ && marker !== 45 /* - */ && marker !== 43 /* + */) {
+ return -1;
+ }
+ if (pos < max) {
+ const ch = state.src.charCodeAt(pos);
+ if (!isSpace(ch)) {
+ // " -test " - is not a list item
+ return -1;
+ }
+ }
+ return pos;
+ }
+ // Search `\d+[.)][\n ]`, returns next pos after marker on success
+ // or -1 on fail.
+ function skipOrderedListMarker(state, startLine) {
+ const start = state.bMarks[startLine] + state.tShift[startLine];
+ const max = state.eMarks[startLine];
+ let pos = start;
+ // List marker should have at least 2 chars (digit + dot)
+ if (pos + 1 >= max) {
+ return -1;
+ }
+ let ch = state.src.charCodeAt(pos++);
+ if (ch < 48 /* 0 */ || ch > 57 /* 9 */) {
+ return -1;
+ }
+ for (;;) {
+ // EOL -> fail
+ if (pos >= max) {
+ return -1;
+ }
+ ch = state.src.charCodeAt(pos++);
+ if (ch >= 48 /* 0 */ && ch <= 57 /* 9 */) {
+ // List marker should have no more than 9 digits
+ // (prevents integer overflow in browsers)
+ if (pos - start >= 10) {
+ return -1;
+ }
+ continue;
+ }
+ // found valid marker
+ if (ch === 41 /* ) */ || ch === 46 /* . */) {
+ break;
+ }
+ return -1;
+ }
+ if (pos < max) {
+ ch = state.src.charCodeAt(pos);
+ if (!isSpace(ch)) {
+ // " 1.test " - is not a list item
+ return -1;
+ }
+ }
+ return pos;
+ }
+ function markTightParagraphs(state, idx) {
+ const level = state.level + 2;
+ for (let i = idx + 2, l = state.tokens.length - 2; i < l; i++) {
+ if (state.tokens[i].level === level && state.tokens[i].type === "paragraph_open") {
+ state.tokens[i + 2].hidden = true;
+ state.tokens[i].hidden = true;
+ i += 2;
+ }
+ }
+ }
+ function list(state, startLine, endLine, silent) {
+ let max, pos, start, token;
+ let nextLine = startLine;
+ let tight = true;
+ // if it's indented more than 3 spaces, it should be a code block
+ if (state.sCount[nextLine] - state.blkIndent >= 4) {
+ return false;
+ }
+ // Special case:
+ // - item 1
+ // - item 2
+ // - item 3
+ // - item 4
+ // - this one is a paragraph continuation
+ if (state.listIndent >= 0 && state.sCount[nextLine] - state.listIndent >= 4 && state.sCount[nextLine] < state.blkIndent) {
+ return false;
+ }
+ let isTerminatingParagraph = false;
+ // limit conditions when list can interrupt
+ // a paragraph (validation mode only)
+ if (silent && state.parentType === "paragraph") {
+ // Next list item should still terminate previous list item;
+ // This code can fail if plugins use blkIndent as well as lists,
+ // but I hope the spec gets fixed long before that happens.
+ if (state.sCount[nextLine] >= state.blkIndent) {
+ isTerminatingParagraph = true;
+ }
+ }
+ // Detect list type and position after marker
+ let isOrdered;
+ let markerValue;
+ let posAfterMarker;
+ if ((posAfterMarker = skipOrderedListMarker(state, nextLine)) >= 0) {
+ isOrdered = true;
+ start = state.bMarks[nextLine] + state.tShift[nextLine];
+ markerValue = Number(state.src.slice(start, posAfterMarker - 1));
+ // If we're starting a new ordered list right after
+ // a paragraph, it should start with 1.
+ if (isTerminatingParagraph && markerValue !== 1) return false;
+ } else if ((posAfterMarker = skipBulletListMarker(state, nextLine)) >= 0) {
+ isOrdered = false;
+ } else {
+ return false;
+ }
+ // If we're starting a new unordered list right after
+ // a paragraph, first line should not be empty.
+ if (isTerminatingParagraph) {
+ if (state.skipSpaces(posAfterMarker) >= state.eMarks[nextLine]) return false;
+ }
+ // For validation mode we can terminate immediately
+ if (silent) {
+ return true;
+ }
+ // We should terminate list on style change. Remember first one to compare.
+ const markerCharCode = state.src.charCodeAt(posAfterMarker - 1);
+ // Start list
+ const listTokIdx = state.tokens.length;
+ if (isOrdered) {
+ token = state.push("ordered_list_open", "ol", 1);
+ if (markerValue !== 1) {
+ token.attrs = [ [ "start", markerValue ] ];
+ }
+ } else {
+ token = state.push("bullet_list_open", "ul", 1);
+ }
+ const listLines = [ nextLine, 0 ];
+ token.map = listLines;
+ token.markup = String.fromCharCode(markerCharCode);
+
+ // Iterate list items
+
+ let prevEmptyEnd = false;
+ const terminatorRules = state.md.block.ruler.getRules("list");
+ const oldParentType = state.parentType;
+ state.parentType = "list";
+ while (nextLine < endLine) {
+ pos = posAfterMarker;
+ max = state.eMarks[nextLine];
+ const initial = state.sCount[nextLine] + posAfterMarker - (state.bMarks[nextLine] + state.tShift[nextLine]);
+ let offset = initial;
+ while (pos < max) {
+ const ch = state.src.charCodeAt(pos);
+ if (ch === 9) {
+ offset += 4 - (offset + state.bsCount[nextLine]) % 4;
+ } else if (ch === 32) {
+ offset++;
+ } else {
+ break;
+ }
+ pos++;
+ }
+ const contentStart = pos;
+ let indentAfterMarker;
+ if (contentStart >= max) {
+ // trimming space in "- \n 3" case, indent is 1 here
+ indentAfterMarker = 1;
+ } else {
+ indentAfterMarker = offset - initial;
+ }
+ // If we have more than 4 spaces, the indent is 1
+ // (the rest is just indented code block)
+ if (indentAfterMarker > 4) {
+ indentAfterMarker = 1;
+ }
+ // " - test"
+ // ^^^^^ - calculating total length of this thing
+ const indent = initial + indentAfterMarker;
+ // Run subparser & write tokens
+ token = state.push("list_item_open", "li", 1);
+ token.markup = String.fromCharCode(markerCharCode);
+ const itemLines = [ nextLine, 0 ];
+ token.map = itemLines;
+ if (isOrdered) {
+ token.info = state.src.slice(start, posAfterMarker - 1);
+ }
+ // change current state, then restore it after parser subcall
+ const oldTight = state.tight;
+ const oldTShift = state.tShift[nextLine];
+ const oldSCount = state.sCount[nextLine];
+ // - example list
+ // ^ listIndent position will be here
+ // ^ blkIndent position will be here
+
+ const oldListIndent = state.listIndent;
+ state.listIndent = state.blkIndent;
+ state.blkIndent = indent;
+ state.tight = true;
+ state.tShift[nextLine] = contentStart - state.bMarks[nextLine];
+ state.sCount[nextLine] = offset;
+ if (contentStart >= max && state.isEmpty(nextLine + 1)) {
+ // workaround for this case
+ // (list item is empty, list terminates before "foo"):
+ // ~~~~~~~~
+ // -
+ // foo
+ // ~~~~~~~~
+ state.line = Math.min(state.line + 2, endLine);
+ } else {
+ state.md.block.tokenize(state, nextLine, endLine, true);
+ }
+ // If any of list item is tight, mark list as tight
+ if (!state.tight || prevEmptyEnd) {
+ tight = false;
+ }
+ // Item become loose if finish with empty line,
+ // but we should filter last element, because it means list finish
+ prevEmptyEnd = state.line - nextLine > 1 && state.isEmpty(state.line - 1);
+ state.blkIndent = state.listIndent;
+ state.listIndent = oldListIndent;
+ state.tShift[nextLine] = oldTShift;
+ state.sCount[nextLine] = oldSCount;
+ state.tight = oldTight;
+ token = state.push("list_item_close", "li", -1);
+ token.markup = String.fromCharCode(markerCharCode);
+ nextLine = state.line;
+ itemLines[1] = nextLine;
+ if (nextLine >= endLine) {
+ break;
+ }
+
+ // Try to check if list is terminated or continued.
+
+ if (state.sCount[nextLine] < state.blkIndent) {
+ break;
+ }
+ // if it's indented more than 3 spaces, it should be a code block
+ if (state.sCount[nextLine] - state.blkIndent >= 4) {
+ break;
+ }
+ // fail if terminating block found
+ let terminate = false;
+ for (let i = 0, l = terminatorRules.length; i < l; i++) {
+ if (terminatorRules[i](state, nextLine, endLine, true)) {
+ terminate = true;
+ break;
+ }
+ }
+ if (terminate) {
+ break;
+ }
+ // fail if list has another type
+ if (isOrdered) {
+ posAfterMarker = skipOrderedListMarker(state, nextLine);
+ if (posAfterMarker < 0) {
+ break;
+ }
+ start = state.bMarks[nextLine] + state.tShift[nextLine];
+ } else {
+ posAfterMarker = skipBulletListMarker(state, nextLine);
+ if (posAfterMarker < 0) {
+ break;
+ }
+ }
+ if (markerCharCode !== state.src.charCodeAt(posAfterMarker - 1)) {
+ break;
+ }
+ }
+ // Finalize list
+ if (isOrdered) {
+ token = state.push("ordered_list_close", "ol", -1);
+ } else {
+ token = state.push("bullet_list_close", "ul", -1);
+ }
+ token.markup = String.fromCharCode(markerCharCode);
+ listLines[1] = nextLine;
+ state.line = nextLine;
+ state.parentType = oldParentType;
+ // mark paragraphs tight if needed
+ if (tight) {
+ markTightParagraphs(state, listTokIdx);
+ }
+ return true;
+ }
+ function reference(state, startLine, _endLine, silent) {
+ let pos = state.bMarks[startLine] + state.tShift[startLine];
+ let max = state.eMarks[startLine];
+ let nextLine = startLine + 1;
+ // if it's indented more than 3 spaces, it should be a code block
+ if (state.sCount[startLine] - state.blkIndent >= 4) {
+ return false;
+ }
+ if (state.src.charCodeAt(pos) !== 91 /* [ */) {
+ return false;
+ }
+ function getNextLine(nextLine) {
+ const endLine = state.lineMax;
+ if (nextLine >= endLine || state.isEmpty(nextLine)) {
+ // empty line or end of input
+ return null;
+ }
+ let isContinuation = false;
+ // this would be a code block normally, but after paragraph
+ // it's considered a lazy continuation regardless of what's there
+ if (state.sCount[nextLine] - state.blkIndent > 3) {
+ isContinuation = true;
+ }
+ // quirk for blockquotes, this line should already be checked by that rule
+ if (state.sCount[nextLine] < 0) {
+ isContinuation = true;
+ }
+ if (!isContinuation) {
+ const terminatorRules = state.md.block.ruler.getRules("reference");
+ const oldParentType = state.parentType;
+ state.parentType = "reference";
+ // Some tags can terminate paragraph without empty line.
+ let terminate = false;
+ for (let i = 0, l = terminatorRules.length; i < l; i++) {
+ if (terminatorRules[i](state, nextLine, endLine, true)) {
+ terminate = true;
+ break;
+ }
+ }
+ state.parentType = oldParentType;
+ if (terminate) {
+ // terminated by another block
+ return null;
+ }
+ }
+ const pos = state.bMarks[nextLine] + state.tShift[nextLine];
+ const max = state.eMarks[nextLine];
+ // max + 1 explicitly includes the newline
+ return state.src.slice(pos, max + 1);
+ }
+ let str = state.src.slice(pos, max + 1);
+ max = str.length;
+ let labelEnd = -1;
+ for (pos = 1; pos < max; pos++) {
+ const ch = str.charCodeAt(pos);
+ if (ch === 91 /* [ */) {
+ return false;
+ } else if (ch === 93 /* ] */) {
+ labelEnd = pos;
+ break;
+ } else if (ch === 10 /* \n */) {
+ const lineContent = getNextLine(nextLine);
+ if (lineContent !== null) {
+ str += lineContent;
+ max = str.length;
+ nextLine++;
+ }
+ } else if (ch === 92 /* \ */) {
+ pos++;
+ if (pos < max && str.charCodeAt(pos) === 10) {
+ const lineContent = getNextLine(nextLine);
+ if (lineContent !== null) {
+ str += lineContent;
+ max = str.length;
+ nextLine++;
+ }
+ }
+ }
+ }
+ if (labelEnd < 0 || str.charCodeAt(labelEnd + 1) !== 58 /* : */) {
+ return false;
+ }
+ // [label]: destination 'title'
+ // ^^^ skip optional whitespace here
+ for (pos = labelEnd + 2; pos < max; pos++) {
+ const ch = str.charCodeAt(pos);
+ if (ch === 10) {
+ const lineContent = getNextLine(nextLine);
+ if (lineContent !== null) {
+ str += lineContent;
+ max = str.length;
+ nextLine++;
+ }
+ } else if (isSpace(ch)) ; else {
+ break;
+ }
+ }
+ // [label]: destination 'title'
+ // ^^^^^^^^^^^ parse this
+ const destRes = state.md.helpers.parseLinkDestination(str, pos, max);
+ if (!destRes.ok) {
+ return false;
+ }
+ const href = state.md.normalizeLink(destRes.str);
+ if (!state.md.validateLink(href)) {
+ return false;
+ }
+ pos = destRes.pos;
+ // save cursor state, we could require to rollback later
+ const destEndPos = pos;
+ const destEndLineNo = nextLine;
+ // [label]: destination 'title'
+ // ^^^ skipping those spaces
+ const start = pos;
+ for (;pos < max; pos++) {
+ const ch = str.charCodeAt(pos);
+ if (ch === 10) {
+ const lineContent = getNextLine(nextLine);
+ if (lineContent !== null) {
+ str += lineContent;
+ max = str.length;
+ nextLine++;
+ }
+ } else if (isSpace(ch)) ; else {
+ break;
+ }
+ }
+ // [label]: destination 'title'
+ // ^^^^^^^ parse this
+ let titleRes = state.md.helpers.parseLinkTitle(str, pos, max);
+ while (titleRes.can_continue) {
+ const lineContent = getNextLine(nextLine);
+ if (lineContent === null) break;
+ str += lineContent;
+ pos = max;
+ max = str.length;
+ nextLine++;
+ titleRes = state.md.helpers.parseLinkTitle(str, pos, max, titleRes);
+ }
+ let title;
+ if (pos < max && start !== pos && titleRes.ok) {
+ title = titleRes.str;
+ pos = titleRes.pos;
+ } else {
+ title = "";
+ pos = destEndPos;
+ nextLine = destEndLineNo;
+ }
+ // skip trailing spaces until the rest of the line
+ while (pos < max) {
+ const ch = str.charCodeAt(pos);
+ if (!isSpace(ch)) {
+ break;
+ }
+ pos++;
+ }
+ if (pos < max && str.charCodeAt(pos) !== 10) {
+ if (title) {
+ // garbage at the end of the line after title,
+ // but it could still be a valid reference if we roll back
+ title = "";
+ pos = destEndPos;
+ nextLine = destEndLineNo;
+ while (pos < max) {
+ const ch = str.charCodeAt(pos);
+ if (!isSpace(ch)) {
+ break;
+ }
+ pos++;
+ }
+ }
+ }
+ if (pos < max && str.charCodeAt(pos) !== 10) {
+ // garbage at the end of the line
+ return false;
+ }
+ const label = normalizeReference(str.slice(1, labelEnd));
+ if (!label) {
+ // CommonMark 0.20 disallows empty labels
+ return false;
+ }
+ // Reference can not terminate anything. This check is for safety only.
+ /* istanbul ignore if */ if (silent) {
+ return true;
+ }
+ if (typeof state.env.references === "undefined") {
+ state.env.references = {};
+ }
+ if (typeof state.env.references[label] === "undefined") {
+ state.env.references[label] = {
+ title: title,
+ href: href
+ };
+ }
+ state.line = nextLine;
+ return true;
+ }
+ // List of valid html blocks names, according to commonmark spec
+ // https://spec.commonmark.org/0.30/#html-blocks
+ var block_names = [ "address", "article", "aside", "base", "basefont", "blockquote", "body", "caption", "center", "col", "colgroup", "dd", "details", "dialog", "dir", "div", "dl", "dt", "fieldset", "figcaption", "figure", "footer", "form", "frame", "frameset", "h1", "h2", "h3", "h4", "h5", "h6", "head", "header", "hr", "html", "iframe", "legend", "li", "link", "main", "menu", "menuitem", "nav", "noframes", "ol", "optgroup", "option", "p", "param", "search", "section", "summary", "table", "tbody", "td", "tfoot", "th", "thead", "title", "tr", "track", "ul" ];
+ // Regexps to match html elements
+ const attr_name = "[a-zA-Z_:][a-zA-Z0-9:._-]*";
+ const unquoted = "[^\"'=<>`\\x00-\\x20]+";
+ const single_quoted = "'[^']*'";
+ const double_quoted = '"[^"]*"';
+ const attr_value = "(?:" + unquoted + "|" + single_quoted + "|" + double_quoted + ")";
+ const attribute = "(?:\\s+" + attr_name + "(?:\\s*=\\s*" + attr_value + ")?)";
+ const open_tag = "<[A-Za-z][A-Za-z0-9\\-]*" + attribute + "*\\s*\\/?>";
+ const close_tag = "<\\/[A-Za-z][A-Za-z0-9\\-]*\\s*>";
+ const comment = "\x3c!---?>|\x3c!--(?:[^-]|-[^-]|--[^>])*--\x3e";
+ const processing = "<[?][\\s\\S]*?[?]>";
+ const declaration = "<![A-Za-z][^>]*>";
+ const cdata = "<!\\[CDATA\\[[\\s\\S]*?\\]\\]>";
+ const HTML_TAG_RE = new RegExp("^(?:" + open_tag + "|" + close_tag + "|" + comment + "|" + processing + "|" + declaration + "|" + cdata + ")");
+ const HTML_OPEN_CLOSE_TAG_RE = new RegExp("^(?:" + open_tag + "|" + close_tag + ")");
+ // HTML block
+ // An array of opening and corresponding closing sequences for html tags,
+ // last argument defines whether it can terminate a paragraph or not
+
+ const HTML_SEQUENCES = [ [ /^<(script|pre|style|textarea)(?=(\s|>|$))/i, /<\/(script|pre|style|textarea)>/i, true ], [ /^<!--/, /-->/, true ], [ /^<\?/, /\?>/, true ], [ /^<![A-Z]/, />/, true ], [ /^<!\[CDATA\[/, /\]\]>/, true ], [ new RegExp("^</?(" + block_names.join("|") + ")(?=(\\s|/?>|$))", "i"), /^$/, true ], [ new RegExp(HTML_OPEN_CLOSE_TAG_RE.source + "\\s*$"), /^$/, false ] ];
+ function html_block(state, startLine, endLine, silent) {
+ let pos = state.bMarks[startLine] + state.tShift[startLine];
+ let max = state.eMarks[startLine];
+ // if it's indented more than 3 spaces, it should be a code block
+ if (state.sCount[startLine] - state.blkIndent >= 4) {
+ return false;
+ }
+ if (!state.md.options.html) {
+ return false;
+ }
+ if (state.src.charCodeAt(pos) !== 60 /* < */) {
+ return false;
+ }
+ let lineText = state.src.slice(pos, max);
+ let i = 0;
+ for (;i < HTML_SEQUENCES.length; i++) {
+ if (HTML_SEQUENCES[i][0].test(lineText)) {
+ break;
+ }
+ }
+ if (i === HTML_SEQUENCES.length) {
+ return false;
+ }
+ if (silent) {
+ // true if this sequence can be a terminator, false otherwise
+ return HTML_SEQUENCES[i][2];
+ }
+ let nextLine = startLine + 1;
+ // If we are here - we detected HTML block.
+ // Let's roll down till block end.
+ if (!HTML_SEQUENCES[i][1].test(lineText)) {
+ for (;nextLine < endLine; nextLine++) {
+ if (state.sCount[nextLine] < state.blkIndent) {
+ break;
+ }
+ pos = state.bMarks[nextLine] + state.tShift[nextLine];
+ max = state.eMarks[nextLine];
+ lineText = state.src.slice(pos, max);
+ if (HTML_SEQUENCES[i][1].test(lineText)) {
+ if (lineText.length !== 0) {
+ nextLine++;
+ }
+ break;
+ }
+ }
+ }
+ state.line = nextLine;
+ const token = state.push("html_block", "", 0);
+ token.map = [ startLine, nextLine ];
+ token.content = state.getLines(startLine, nextLine, state.blkIndent, true);
+ return true;
+ }
+ // heading (#, ##, ...)
+ function heading(state, startLine, endLine, silent) {
+ let pos = state.bMarks[startLine] + state.tShift[startLine];
+ let max = state.eMarks[startLine];
+ // if it's indented more than 3 spaces, it should be a code block
+ if (state.sCount[startLine] - state.blkIndent >= 4) {
+ return false;
+ }
+ let ch = state.src.charCodeAt(pos);
+ if (ch !== 35 /* # */ || pos >= max) {
+ return false;
+ }
+ // count heading level
+ let level = 1;
+ ch = state.src.charCodeAt(++pos);
+ while (ch === 35 /* # */ && pos < max && level <= 6) {
+ level++;
+ ch = state.src.charCodeAt(++pos);
+ }
+ if (level > 6 || pos < max && !isSpace(ch)) {
+ return false;
+ }
+ if (silent) {
+ return true;
+ }
+ // Let's cut tails like ' ### ' from the end of string
+ max = state.skipSpacesBack(max, pos);
+ const tmp = state.skipCharsBack(max, 35, pos);
+ // #
+ if (tmp > pos && isSpace(state.src.charCodeAt(tmp - 1))) {
+ max = tmp;
+ }
+ state.line = startLine + 1;
+ const token_o = state.push("heading_open", "h" + String(level), 1);
+ token_o.markup = "########".slice(0, level);
+ token_o.map = [ startLine, state.line ];
+ const token_i = state.push("inline", "", 0);
+ token_i.content = state.src.slice(pos, max).trim();
+ token_i.map = [ startLine, state.line ];
+ token_i.children = [];
+ const token_c = state.push("heading_close", "h" + String(level), -1);
+ token_c.markup = "########".slice(0, level);
+ return true;
+ }
+ // lheading (---, ===)
+ function lheading(state, startLine, endLine /*, silent */) {
+ const terminatorRules = state.md.block.ruler.getRules("paragraph");
+ // if it's indented more than 3 spaces, it should be a code block
+ if (state.sCount[startLine] - state.blkIndent >= 4) {
+ return false;
+ }
+ const oldParentType = state.parentType;
+ state.parentType = "paragraph";
+ // use paragraph to match terminatorRules
+ // jump line-by-line until empty one or EOF
+ let level = 0;
+ let marker;
+ let nextLine = startLine + 1;
+ for (;nextLine < endLine && !state.isEmpty(nextLine); nextLine++) {
+ // this would be a code block normally, but after paragraph
+ // it's considered a lazy continuation regardless of what's there
+ if (state.sCount[nextLine] - state.blkIndent > 3) {
+ continue;
+ }
+
+ // Check for underline in setext header
+
+ if (state.sCount[nextLine] >= state.blkIndent) {
+ let pos = state.bMarks[nextLine] + state.tShift[nextLine];
+ const max = state.eMarks[nextLine];
+ if (pos < max) {
+ marker = state.src.charCodeAt(pos);
+ if (marker === 45 /* - */ || marker === 61 /* = */) {
+ pos = state.skipChars(pos, marker);
+ pos = state.skipSpaces(pos);
+ if (pos >= max) {
+ level = marker === 61 /* = */ ? 1 : 2;
+ break;
+ }
+ }
+ }
+ }
+ // quirk for blockquotes, this line should already be checked by that rule
+ if (state.sCount[nextLine] < 0) {
+ continue;
+ }
+ // Some tags can terminate paragraph without empty line.
+ let terminate = false;
+ for (let i = 0, l = terminatorRules.length; i < l; i++) {
+ if (terminatorRules[i](state, nextLine, endLine, true)) {
+ terminate = true;
+ break;
+ }
+ }
+ if (terminate) {
+ break;
+ }
+ }
+ if (!level) {
+ // Didn't find valid underline
+ return false;
+ }
+ const content = state.getLines(startLine, nextLine, state.blkIndent, false).trim();
+ state.line = nextLine + 1;
+ const token_o = state.push("heading_open", "h" + String(level), 1);
+ token_o.markup = String.fromCharCode(marker);
+ token_o.map = [ startLine, state.line ];
+ const token_i = state.push("inline", "", 0);
+ token_i.content = content;
+ token_i.map = [ startLine, state.line - 1 ];
+ token_i.children = [];
+ const token_c = state.push("heading_close", "h" + String(level), -1);
+ token_c.markup = String.fromCharCode(marker);
+ state.parentType = oldParentType;
+ return true;
+ }
+ // Paragraph
+ function paragraph(state, startLine, endLine) {
+ const terminatorRules = state.md.block.ruler.getRules("paragraph");
+ const oldParentType = state.parentType;
+ let nextLine = startLine + 1;
+ state.parentType = "paragraph";
+ // jump line-by-line until empty one or EOF
+ for (;nextLine < endLine && !state.isEmpty(nextLine); nextLine++) {
+ // this would be a code block normally, but after paragraph
+ // it's considered a lazy continuation regardless of what's there
+ if (state.sCount[nextLine] - state.blkIndent > 3) {
+ continue;
+ }
+ // quirk for blockquotes, this line should already be checked by that rule
+ if (state.sCount[nextLine] < 0) {
+ continue;
+ }
+ // Some tags can terminate paragraph without empty line.
+ let terminate = false;
+ for (let i = 0, l = terminatorRules.length; i < l; i++) {
+ if (terminatorRules[i](state, nextLine, endLine, true)) {
+ terminate = true;
+ break;
+ }
+ }
+ if (terminate) {
+ break;
+ }
+ }
+ const content = state.getLines(startLine, nextLine, state.blkIndent, false).trim();
+ state.line = nextLine;
+ const token_o = state.push("paragraph_open", "p", 1);
+ token_o.map = [ startLine, state.line ];
+ const token_i = state.push("inline", "", 0);
+ token_i.content = content;
+ token_i.map = [ startLine, state.line ];
+ token_i.children = [];
+ state.push("paragraph_close", "p", -1);
+ state.parentType = oldParentType;
+ return true;
+ }
+ /** internal
+ * class ParserBlock
+ *
+ * Block-level tokenizer.
+ **/ const _rules$1 = [
+ // First 2 params - rule name & source. Secondary array - list of rules,
+ // which can be terminated by this one.
+ [ "table", table, [ "paragraph", "reference" ] ], [ "code", code ], [ "fence", fence, [ "paragraph", "reference", "blockquote", "list" ] ], [ "blockquote", blockquote, [ "paragraph", "reference", "blockquote", "list" ] ], [ "hr", hr, [ "paragraph", "reference", "blockquote", "list" ] ], [ "list", list, [ "paragraph", "reference", "blockquote" ] ], [ "reference", reference ], [ "html_block", html_block, [ "paragraph", "reference", "blockquote" ] ], [ "heading", heading, [ "paragraph", "reference", "blockquote" ] ], [ "lheading", lheading ], [ "paragraph", paragraph ] ];
+ /**
+ * new ParserBlock()
+ **/ function ParserBlock() {
+ /**
+ * ParserBlock#ruler -> Ruler
+ *
+ * [[Ruler]] instance. Keep configuration of block rules.
+ **/
+ this.ruler = new Ruler;
+ for (let i = 0; i < _rules$1.length; i++) {
+ this.ruler.push(_rules$1[i][0], _rules$1[i][1], {
+ alt: (_rules$1[i][2] || []).slice()
+ });
+ }
+ }
+ // Generate tokens for input range
+
+ ParserBlock.prototype.tokenize = function(state, startLine, endLine) {
+ const rules = this.ruler.getRules("");
+ const len = rules.length;
+ const maxNesting = state.md.options.maxNesting;
+ let line = startLine;
+ let hasEmptyLines = false;
+ while (line < endLine) {
+ state.line = line = state.skipEmptyLines(line);
+ if (line >= endLine) {
+ break;
+ }
+ // Termination condition for nested calls.
+ // Nested calls currently used for blockquotes & lists
+ if (state.sCount[line] < state.blkIndent) {
+ break;
+ }
+ // If nesting level exceeded - skip tail to the end. That's not ordinary
+ // situation and we should not care about content.
+ if (state.level >= maxNesting) {
+ state.line = endLine;
+ break;
+ }
+ // Try all possible rules.
+ // On success, rule should:
+
+ // - update `state.line`
+ // - update `state.tokens`
+ // - return true
+ const prevLine = state.line;
+ let ok = false;
+ for (let i = 0; i < len; i++) {
+ ok = rules[i](state, line, endLine, false);
+ if (ok) {
+ if (prevLine >= state.line) {
+ throw new Error("block rule didn't increment state.line");
+ }
+ break;
+ }
+ }
+ // this can only happen if user disables paragraph rule
+ if (!ok) throw new Error("none of the block rules matched");
+ // set state.tight if we had an empty line before current tag
+ // i.e. latest empty line should not count
+ state.tight = !hasEmptyLines;
+ // paragraph might "eat" one newline after it in nested lists
+ if (state.isEmpty(state.line - 1)) {
+ hasEmptyLines = true;
+ }
+ line = state.line;
+ if (line < endLine && state.isEmpty(line)) {
+ hasEmptyLines = true;
+ line++;
+ state.line = line;
+ }
+ }
+ };
+ /**
+ * ParserBlock.parse(str, md, env, outTokens)
+ *
+ * Process input string and push block tokens into `outTokens`
+ **/ ParserBlock.prototype.parse = function(src, md, env, outTokens) {
+ if (!src) {
+ return;
+ }
+ const state = new this.State(src, md, env, outTokens);
+ this.tokenize(state, state.line, state.lineMax);
+ };
+ ParserBlock.prototype.State = StateBlock;
+ // Inline parser state
+ function StateInline(src, md, env, outTokens) {
+ this.src = src;
+ this.env = env;
+ this.md = md;
+ this.tokens = outTokens;
+ this.tokens_meta = Array(outTokens.length);
+ this.pos = 0;
+ this.posMax = this.src.length;
+ this.level = 0;
+ this.pending = "";
+ this.pendingLevel = 0;
+ // Stores { start: end } pairs. Useful for backtrack
+ // optimization of pairs parse (emphasis, strikes).
+ this.cache = {};
+ // List of emphasis-like delimiters for current tag
+ this.delimiters = [];
+ // Stack of delimiter lists for upper level tags
+ this._prev_delimiters = [];
+ // backtick length => last seen position
+ this.backticks = {};
+ this.backticksScanned = false;
+ // Counter used to disable inline linkify-it execution
+ // inside <a> and markdown links
+ this.linkLevel = 0;
+ }
+ // Flush pending text
+
+ StateInline.prototype.pushPending = function() {
+ const token = new Token("text", "", 0);
+ token.content = this.pending;
+ token.level = this.pendingLevel;
+ this.tokens.push(token);
+ this.pending = "";
+ return token;
+ };
+ // Push new token to "stream".
+ // If pending text exists - flush it as text token
+
+ StateInline.prototype.push = function(type, tag, nesting) {
+ if (this.pending) {
+ this.pushPending();
+ }
+ const token = new Token(type, tag, nesting);
+ let token_meta = null;
+ if (nesting < 0) {
+ // closing tag
+ this.level--;
+ this.delimiters = this._prev_delimiters.pop();
+ }
+ token.level = this.level;
+ if (nesting > 0) {
+ // opening tag
+ this.level++;
+ this._prev_delimiters.push(this.delimiters);
+ this.delimiters = [];
+ token_meta = {
+ delimiters: this.delimiters
+ };
+ }
+ this.pendingLevel = this.level;
+ this.tokens.push(token);
+ this.tokens_meta.push(token_meta);
+ return token;
+ };
+ // Scan a sequence of emphasis-like markers, and determine whether
+ // it can start an emphasis sequence or end an emphasis sequence.
+
+ // - start - position to scan from (it should point at a valid marker);
+ // - canSplitWord - determine if these markers can be found inside a word
+
+ StateInline.prototype.scanDelims = function(start, canSplitWord) {
+ const max = this.posMax;
+ const marker = this.src.charCodeAt(start);
+ // treat beginning of the line as a whitespace
+ const lastChar = start > 0 ? this.src.charCodeAt(start - 1) : 32;
+ let pos = start;
+ while (pos < max && this.src.charCodeAt(pos) === marker) {
+ pos++;
+ }
+ const count = pos - start;
+ // treat end of the line as a whitespace
+ const nextChar = pos < max ? this.src.charCodeAt(pos) : 32;
+ const isLastPunctChar = isMdAsciiPunct(lastChar) || isPunctChar(String.fromCharCode(lastChar));
+ const isNextPunctChar = isMdAsciiPunct(nextChar) || isPunctChar(String.fromCharCode(nextChar));
+ const isLastWhiteSpace = isWhiteSpace(lastChar);
+ const isNextWhiteSpace = isWhiteSpace(nextChar);
+ const left_flanking = !isNextWhiteSpace && (!isNextPunctChar || isLastWhiteSpace || isLastPunctChar);
+ const right_flanking = !isLastWhiteSpace && (!isLastPunctChar || isNextWhiteSpace || isNextPunctChar);
+ const can_open = left_flanking && (canSplitWord || !right_flanking || isLastPunctChar);
+ const can_close = right_flanking && (canSplitWord || !left_flanking || isNextPunctChar);
+ return {
+ can_open: can_open,
+ can_close: can_close,
+ length: count
+ };
+ };
+ // re-export Token class to use in block rules
+ StateInline.prototype.Token = Token;
+ // Skip text characters for text token, place those to pending buffer
+ // and increment current pos
+ // Rule to skip pure text
+ // '{}$%@~+=:' reserved for extentions
+ // !, ", #, $, %, &, ', (, ), *, +, ,, -, ., /, :, ;, <, =, >, ?, @, [, \, ], ^, _, `, {, |, }, or ~
+ // !!!! Don't confuse with "Markdown ASCII Punctuation" chars
+ // http://spec.commonmark.org/0.15/#ascii-punctuation-character
+ function isTerminatorChar(ch) {
+ switch (ch) {
+ case 10 /* \n */ :
+ case 33 /* ! */ :
+ case 35 /* # */ :
+ case 36 /* $ */ :
+ case 37 /* % */ :
+ case 38 /* & */ :
+ case 42 /* * */ :
+ case 43 /* + */ :
+ case 45 /* - */ :
+ case 58 /* : */ :
+ case 60 /* < */ :
+ case 61 /* = */ :
+ case 62 /* > */ :
+ case 64 /* @ */ :
+ case 91 /* [ */ :
+ case 92 /* \ */ :
+ case 93 /* ] */ :
+ case 94 /* ^ */ :
+ case 95 /* _ */ :
+ case 96 /* ` */ :
+ case 123 /* { */ :
+ case 125 /* } */ :
+ case 126 /* ~ */ :
+ return true;
+
+ default:
+ return false;
+ }
+ }
+ function text(state, silent) {
+ let pos = state.pos;
+ while (pos < state.posMax && !isTerminatorChar(state.src.charCodeAt(pos))) {
+ pos++;
+ }
+ if (pos === state.pos) {
+ return false;
+ }
+ if (!silent) {
+ state.pending += state.src.slice(state.pos, pos);
+ }
+ state.pos = pos;
+ return true;
+ }
+ // Alternative implementation, for memory.
+
+ // It costs 10% of performance, but allows extend terminators list, if place it
+ // to `ParserInline` property. Probably, will switch to it sometime, such
+ // flexibility required.
+ /*
+ var TERMINATOR_RE = /[\n!#$%&*+\-:<=>@[\\\]^_`{}~]/;
+
+ module.exports = function text(state, silent) {
+ var pos = state.pos,
+ idx = state.src.slice(pos).search(TERMINATOR_RE);
+
+ // first char is terminator -> empty text
+ if (idx === 0) { return false; }
+
+ // no terminator -> text till end of string
+ if (idx < 0) {
+ if (!silent) { state.pending += state.src.slice(pos); }
+ state.pos = state.src.length;
+ return true;
+ }
+
+ if (!silent) { state.pending += state.src.slice(pos, pos + idx); }
+
+ state.pos += idx;
+
+ return true;
+ }; */
+ // Process links like https://example.org/
+ // RFC3986: scheme = ALPHA *( ALPHA / DIGIT / "+" / "-" / "." )
+ const SCHEME_RE = /(?:^|[^a-z0-9.+-])([a-z][a-z0-9.+-]*)$/i;
+ function linkify(state, silent) {
+ if (!state.md.options.linkify) return false;
+ if (state.linkLevel > 0) return false;
+ const pos = state.pos;
+ const max = state.posMax;
+ if (pos + 3 > max) return false;
+ if (state.src.charCodeAt(pos) !== 58 /* : */) return false;
+ if (state.src.charCodeAt(pos + 1) !== 47 /* / */) return false;
+ if (state.src.charCodeAt(pos + 2) !== 47 /* / */) return false;
+ const match = state.pending.match(SCHEME_RE);
+ if (!match) return false;
+ const proto = match[1];
+ const link = state.md.linkify.matchAtStart(state.src.slice(pos - proto.length));
+ if (!link) return false;
+ let url = link.url;
+ // invalid link, but still detected by linkify somehow;
+ // need to check to prevent infinite loop below
+ if (url.length <= proto.length) return false;
+ // disallow '*' at the end of the link (conflicts with emphasis)
+ url = url.replace(/\*+$/, "");
+ const fullUrl = state.md.normalizeLink(url);
+ if (!state.md.validateLink(fullUrl)) return false;
+ if (!silent) {
+ state.pending = state.pending.slice(0, -proto.length);
+ const token_o = state.push("link_open", "a", 1);
+ token_o.attrs = [ [ "href", fullUrl ] ];
+ token_o.markup = "linkify";
+ token_o.info = "auto";
+ const token_t = state.push("text", "", 0);
+ token_t.content = state.md.normalizeLinkText(url);
+ const token_c = state.push("link_close", "a", -1);
+ token_c.markup = "linkify";
+ token_c.info = "auto";
+ }
+ state.pos += url.length - proto.length;
+ return true;
+ }
+ // Proceess '\n'
+ function newline(state, silent) {
+ let pos = state.pos;
+ if (state.src.charCodeAt(pos) !== 10 /* \n */) {
+ return false;
+ }
+ const pmax = state.pending.length - 1;
+ const max = state.posMax;
+ // ' \n' -> hardbreak
+ // Lookup in pending chars is bad practice! Don't copy to other rules!
+ // Pending string is stored in concat mode, indexed lookups will cause
+ // convertion to flat mode.
+ if (!silent) {
+ if (pmax >= 0 && state.pending.charCodeAt(pmax) === 32) {
+ if (pmax >= 1 && state.pending.charCodeAt(pmax - 1) === 32) {
+ // Find whitespaces tail of pending chars.
+ let ws = pmax - 1;
+ while (ws >= 1 && state.pending.charCodeAt(ws - 1) === 32) ws--;
+ state.pending = state.pending.slice(0, ws);
+ state.push("hardbreak", "br", 0);
+ } else {
+ state.pending = state.pending.slice(0, -1);
+ state.push("softbreak", "br", 0);
+ }
+ } else {
+ state.push("softbreak", "br", 0);
+ }
+ }
+ pos++;
+ // skip heading spaces for next line
+ while (pos < max && isSpace(state.src.charCodeAt(pos))) {
+ pos++;
+ }
+ state.pos = pos;
+ return true;
+ }
+ // Process escaped chars and hardbreaks
+ const ESCAPED = [];
+ for (let i = 0; i < 256; i++) {
+ ESCAPED.push(0);
+ }
+ "\\!\"#$%&'()*+,./:;<=>?@[]^_`{|}~-".split("").forEach((function(ch) {
+ ESCAPED[ch.charCodeAt(0)] = 1;
+ }));
+ function escape(state, silent) {
+ let pos = state.pos;
+ const max = state.posMax;
+ if (state.src.charCodeAt(pos) !== 92 /* \ */) return false;
+ pos++;
+ // '\' at the end of the inline block
+ if (pos >= max) return false;
+ let ch1 = state.src.charCodeAt(pos);
+ if (ch1 === 10) {
+ if (!silent) {
+ state.push("hardbreak", "br", 0);
+ }
+ pos++;
+ // skip leading whitespaces from next line
+ while (pos < max) {
+ ch1 = state.src.charCodeAt(pos);
+ if (!isSpace(ch1)) break;
+ pos++;
+ }
+ state.pos = pos;
+ return true;
+ }
+ let escapedStr = state.src[pos];
+ if (ch1 >= 55296 && ch1 <= 56319 && pos + 1 < max) {
+ const ch2 = state.src.charCodeAt(pos + 1);
+ if (ch2 >= 56320 && ch2 <= 57343) {
+ escapedStr += state.src[pos + 1];
+ pos++;
+ }
+ }
+ const origStr = "\\" + escapedStr;
+ if (!silent) {
+ const token = state.push("text_special", "", 0);
+ if (ch1 < 256 && ESCAPED[ch1] !== 0) {
+ token.content = escapedStr;
+ } else {
+ token.content = origStr;
+ }
+ token.markup = origStr;
+ token.info = "escape";
+ }
+ state.pos = pos + 1;
+ return true;
+ }
+ // Parse backticks
+ function backtick(state, silent) {
+ let pos = state.pos;
+ const ch = state.src.charCodeAt(pos);
+ if (ch !== 96 /* ` */) {
+ return false;
+ }
+ const start = pos;
+ pos++;
+ const max = state.posMax;
+ // scan marker length
+ while (pos < max && state.src.charCodeAt(pos) === 96 /* ` */) {
+ pos++;
+ }
+ const marker = state.src.slice(start, pos);
+ const openerLength = marker.length;
+ if (state.backticksScanned && (state.backticks[openerLength] || 0) <= start) {
+ if (!silent) state.pending += marker;
+ state.pos += openerLength;
+ return true;
+ }
+ let matchEnd = pos;
+ let matchStart;
+ // Nothing found in the cache, scan until the end of the line (or until marker is found)
+ while ((matchStart = state.src.indexOf("`", matchEnd)) !== -1) {
+ matchEnd = matchStart + 1;
+ // scan marker length
+ while (matchEnd < max && state.src.charCodeAt(matchEnd) === 96 /* ` */) {
+ matchEnd++;
+ }
+ const closerLength = matchEnd - matchStart;
+ if (closerLength === openerLength) {
+ // Found matching closer length.
+ if (!silent) {
+ const token = state.push("code_inline", "code", 0);
+ token.markup = marker;
+ token.content = state.src.slice(pos, matchStart).replace(/\n/g, " ").replace(/^ (.+) $/, "$1");
+ }
+ state.pos = matchEnd;
+ return true;
+ }
+ // Some different length found, put it in cache as upper limit of where closer can be found
+ state.backticks[closerLength] = matchStart;
+ }
+ // Scanned through the end, didn't find anything
+ state.backticksScanned = true;
+ if (!silent) state.pending += marker;
+ state.pos += openerLength;
+ return true;
+ }
+ // ~~strike through~~
+
+ // Insert each marker as a separate text token, and add it to delimiter list
+
+ function strikethrough_tokenize(state, silent) {
+ const start = state.pos;
+ const marker = state.src.charCodeAt(start);
+ if (silent) {
+ return false;
+ }
+ if (marker !== 126 /* ~ */) {
+ return false;
+ }
+ const scanned = state.scanDelims(state.pos, true);
+ let len = scanned.length;
+ const ch = String.fromCharCode(marker);
+ if (len < 2) {
+ return false;
+ }
+ let token;
+ if (len % 2) {
+ token = state.push("text", "", 0);
+ token.content = ch;
+ len--;
+ }
+ for (let i = 0; i < len; i += 2) {
+ token = state.push("text", "", 0);
+ token.content = ch + ch;
+ state.delimiters.push({
+ marker: marker,
+ length: 0,
+ // disable "rule of 3" length checks meant for emphasis
+ token: state.tokens.length - 1,
+ end: -1,
+ open: scanned.can_open,
+ close: scanned.can_close
+ });
+ }
+ state.pos += scanned.length;
+ return true;
+ }
+ function postProcess$1(state, delimiters) {
+ let token;
+ const loneMarkers = [];
+ const max = delimiters.length;
+ for (let i = 0; i < max; i++) {
+ const startDelim = delimiters[i];
+ if (startDelim.marker !== 126 /* ~ */) {
+ continue;
+ }
+ if (startDelim.end === -1) {
+ continue;
+ }
+ const endDelim = delimiters[startDelim.end];
+ token = state.tokens[startDelim.token];
+ token.type = "s_open";
+ token.tag = "s";
+ token.nesting = 1;
+ token.markup = "~~";
+ token.content = "";
+ token = state.tokens[endDelim.token];
+ token.type = "s_close";
+ token.tag = "s";
+ token.nesting = -1;
+ token.markup = "~~";
+ token.content = "";
+ if (state.tokens[endDelim.token - 1].type === "text" && state.tokens[endDelim.token - 1].content === "~") {
+ loneMarkers.push(endDelim.token - 1);
+ }
+ }
+ // If a marker sequence has an odd number of characters, it's splitted
+ // like this: `~~~~~` -> `~` + `~~` + `~~`, leaving one marker at the
+ // start of the sequence.
+
+ // So, we have to move all those markers after subsequent s_close tags.
+
+ while (loneMarkers.length) {
+ const i = loneMarkers.pop();
+ let j = i + 1;
+ while (j < state.tokens.length && state.tokens[j].type === "s_close") {
+ j++;
+ }
+ j--;
+ if (i !== j) {
+ token = state.tokens[j];
+ state.tokens[j] = state.tokens[i];
+ state.tokens[i] = token;
+ }
+ }
+ }
+ // Walk through delimiter list and replace text tokens with tags
+
+ function strikethrough_postProcess(state) {
+ const tokens_meta = state.tokens_meta;
+ const max = state.tokens_meta.length;
+ postProcess$1(state, state.delimiters);
+ for (let curr = 0; curr < max; curr++) {
+ if (tokens_meta[curr] && tokens_meta[curr].delimiters) {
+ postProcess$1(state, tokens_meta[curr].delimiters);
+ }
+ }
+ }
+ var r_strikethrough = {
+ tokenize: strikethrough_tokenize,
+ postProcess: strikethrough_postProcess
+ };
+ // Process *this* and _that_
+
+ // Insert each marker as a separate text token, and add it to delimiter list
+
+ function emphasis_tokenize(state, silent) {
+ const start = state.pos;
+ const marker = state.src.charCodeAt(start);
+ if (silent) {
+ return false;
+ }
+ if (marker !== 95 /* _ */ && marker !== 42 /* * */) {
+ return false;
+ }
+ const scanned = state.scanDelims(state.pos, marker === 42);
+ for (let i = 0; i < scanned.length; i++) {
+ const token = state.push("text", "", 0);
+ token.content = String.fromCharCode(marker);
+ state.delimiters.push({
+ // Char code of the starting marker (number).
+ marker: marker,
+ // Total length of these series of delimiters.
+ length: scanned.length,
+ // A position of the token this delimiter corresponds to.
+ token: state.tokens.length - 1,
+ // If this delimiter is matched as a valid opener, `end` will be
+ // equal to its position, otherwise it's `-1`.
+ end: -1,
+ // Boolean flags that determine if this delimiter could open or close
+ // an emphasis.
+ open: scanned.can_open,
+ close: scanned.can_close
+ });
+ }
+ state.pos += scanned.length;
+ return true;
+ }
+ function postProcess(state, delimiters) {
+ const max = delimiters.length;
+ for (let i = max - 1; i >= 0; i--) {
+ const startDelim = delimiters[i];
+ if (startDelim.marker !== 95 /* _ */ && startDelim.marker !== 42 /* * */) {
+ continue;
+ }
+ // Process only opening markers
+ if (startDelim.end === -1) {
+ continue;
+ }
+ const endDelim = delimiters[startDelim.end];
+ // If the previous delimiter has the same marker and is adjacent to this one,
+ // merge those into one strong delimiter.
+
+ // `<em><em>whatever</em></em>` -> `<strong>whatever</strong>`
+
+ const isStrong = i > 0 && delimiters[i - 1].end === startDelim.end + 1 &&
+ // check that first two markers match and adjacent
+ delimiters[i - 1].marker === startDelim.marker && delimiters[i - 1].token === startDelim.token - 1 &&
+ // check that last two markers are adjacent (we can safely assume they match)
+ delimiters[startDelim.end + 1].token === endDelim.token + 1;
+ const ch = String.fromCharCode(startDelim.marker);
+ const token_o = state.tokens[startDelim.token];
+ token_o.type = isStrong ? "strong_open" : "em_open";
+ token_o.tag = isStrong ? "strong" : "em";
+ token_o.nesting = 1;
+ token_o.markup = isStrong ? ch + ch : ch;
+ token_o.content = "";
+ const token_c = state.tokens[endDelim.token];
+ token_c.type = isStrong ? "strong_close" : "em_close";
+ token_c.tag = isStrong ? "strong" : "em";
+ token_c.nesting = -1;
+ token_c.markup = isStrong ? ch + ch : ch;
+ token_c.content = "";
+ if (isStrong) {
+ state.tokens[delimiters[i - 1].token].content = "";
+ state.tokens[delimiters[startDelim.end + 1].token].content = "";
+ i--;
+ }
+ }
+ }
+ // Walk through delimiter list and replace text tokens with tags
+
+ function emphasis_post_process(state) {
+ const tokens_meta = state.tokens_meta;
+ const max = state.tokens_meta.length;
+ postProcess(state, state.delimiters);
+ for (let curr = 0; curr < max; curr++) {
+ if (tokens_meta[curr] && tokens_meta[curr].delimiters) {
+ postProcess(state, tokens_meta[curr].delimiters);
+ }
+ }
+ }
+ var r_emphasis = {
+ tokenize: emphasis_tokenize,
+ postProcess: emphasis_post_process
+ };
+ // Process [link](<to> "stuff")
+ function link(state, silent) {
+ let code, label, res, ref;
+ let href = "";
+ let title = "";
+ let start = state.pos;
+ let parseReference = true;
+ if (state.src.charCodeAt(state.pos) !== 91 /* [ */) {
+ return false;
+ }
+ const oldPos = state.pos;
+ const max = state.posMax;
+ const labelStart = state.pos + 1;
+ const labelEnd = state.md.helpers.parseLinkLabel(state, state.pos, true);
+ // parser failed to find ']', so it's not a valid link
+ if (labelEnd < 0) {
+ return false;
+ }
+ let pos = labelEnd + 1;
+ if (pos < max && state.src.charCodeAt(pos) === 40 /* ( */) {
+ // Inline link
+ // might have found a valid shortcut link, disable reference parsing
+ parseReference = false;
+ // [link]( <href> "title" )
+ // ^^ skipping these spaces
+ pos++;
+ for (;pos < max; pos++) {
+ code = state.src.charCodeAt(pos);
+ if (!isSpace(code) && code !== 10) {
+ break;
+ }
+ }
+ if (pos >= max) {
+ return false;
+ }
+ // [link]( <href> "title" )
+ // ^^^^^^ parsing link destination
+ start = pos;
+ res = state.md.helpers.parseLinkDestination(state.src, pos, state.posMax);
+ if (res.ok) {
+ href = state.md.normalizeLink(res.str);
+ if (state.md.validateLink(href)) {
+ pos = res.pos;
+ } else {
+ href = "";
+ }
+ // [link]( <href> "title" )
+ // ^^ skipping these spaces
+ start = pos;
+ for (;pos < max; pos++) {
+ code = state.src.charCodeAt(pos);
+ if (!isSpace(code) && code !== 10) {
+ break;
+ }
+ }
+ // [link]( <href> "title" )
+ // ^^^^^^^ parsing link title
+ res = state.md.helpers.parseLinkTitle(state.src, pos, state.posMax);
+ if (pos < max && start !== pos && res.ok) {
+ title = res.str;
+ pos = res.pos;
+ // [link]( <href> "title" )
+ // ^^ skipping these spaces
+ for (;pos < max; pos++) {
+ code = state.src.charCodeAt(pos);
+ if (!isSpace(code) && code !== 10) {
+ break;
+ }
+ }
+ }
+ }
+ if (pos >= max || state.src.charCodeAt(pos) !== 41 /* ) */) {
+ // parsing a valid shortcut link failed, fallback to reference
+ parseReference = true;
+ }
+ pos++;
+ }
+ if (parseReference) {
+ // Link reference
+ if (typeof state.env.references === "undefined") {
+ return false;
+ }
+ if (pos < max && state.src.charCodeAt(pos) === 91 /* [ */) {
+ start = pos + 1;
+ pos = state.md.helpers.parseLinkLabel(state, pos);
+ if (pos >= 0) {
+ label = state.src.slice(start, pos++);
+ } else {
+ pos = labelEnd + 1;
+ }
+ } else {
+ pos = labelEnd + 1;
+ }
+ // covers label === '' and label === undefined
+ // (collapsed reference link and shortcut reference link respectively)
+ if (!label) {
+ label = state.src.slice(labelStart, labelEnd);
+ }
+ ref = state.env.references[normalizeReference(label)];
+ if (!ref) {
+ state.pos = oldPos;
+ return false;
+ }
+ href = ref.href;
+ title = ref.title;
+ }
+
+ // We found the end of the link, and know for a fact it's a valid link;
+ // so all that's left to do is to call tokenizer.
+
+ if (!silent) {
+ state.pos = labelStart;
+ state.posMax = labelEnd;
+ const token_o = state.push("link_open", "a", 1);
+ const attrs = [ [ "href", href ] ];
+ token_o.attrs = attrs;
+ if (title) {
+ attrs.push([ "title", title ]);
+ }
+ state.linkLevel++;
+ state.md.inline.tokenize(state);
+ state.linkLevel--;
+ state.push("link_close", "a", -1);
+ }
+ state.pos = pos;
+ state.posMax = max;
+ return true;
+ }
+ // Process ![image](<src> "title")
+ function image(state, silent) {
+ let code, content, label, pos, ref, res, title, start;
+ let href = "";
+ const oldPos = state.pos;
+ const max = state.posMax;
+ if (state.src.charCodeAt(state.pos) !== 33 /* ! */) {
+ return false;
+ }
+ if (state.src.charCodeAt(state.pos + 1) !== 91 /* [ */) {
+ return false;
+ }
+ const labelStart = state.pos + 2;
+ const labelEnd = state.md.helpers.parseLinkLabel(state, state.pos + 1, false);
+ // parser failed to find ']', so it's not a valid link
+ if (labelEnd < 0) {
+ return false;
+ }
+ pos = labelEnd + 1;
+ if (pos < max && state.src.charCodeAt(pos) === 40 /* ( */) {
+ // Inline link
+ // [link]( <href> "title" )
+ // ^^ skipping these spaces
+ pos++;
+ for (;pos < max; pos++) {
+ code = state.src.charCodeAt(pos);
+ if (!isSpace(code) && code !== 10) {
+ break;
+ }
+ }
+ if (pos >= max) {
+ return false;
+ }
+ // [link]( <href> "title" )
+ // ^^^^^^ parsing link destination
+ start = pos;
+ res = state.md.helpers.parseLinkDestination(state.src, pos, state.posMax);
+ if (res.ok) {
+ href = state.md.normalizeLink(res.str);
+ if (state.md.validateLink(href)) {
+ pos = res.pos;
+ } else {
+ href = "";
+ }
+ }
+ // [link]( <href> "title" )
+ // ^^ skipping these spaces
+ start = pos;
+ for (;pos < max; pos++) {
+ code = state.src.charCodeAt(pos);
+ if (!isSpace(code) && code !== 10) {
+ break;
+ }
+ }
+ // [link]( <href> "title" )
+ // ^^^^^^^ parsing link title
+ res = state.md.helpers.parseLinkTitle(state.src, pos, state.posMax);
+ if (pos < max && start !== pos && res.ok) {
+ title = res.str;
+ pos = res.pos;
+ // [link]( <href> "title" )
+ // ^^ skipping these spaces
+ for (;pos < max; pos++) {
+ code = state.src.charCodeAt(pos);
+ if (!isSpace(code) && code !== 10) {
+ break;
+ }
+ }
+ } else {
+ title = "";
+ }
+ if (pos >= max || state.src.charCodeAt(pos) !== 41 /* ) */) {
+ state.pos = oldPos;
+ return false;
+ }
+ pos++;
+ } else {
+ // Link reference
+ if (typeof state.env.references === "undefined") {
+ return false;
+ }
+ if (pos < max && state.src.charCodeAt(pos) === 91 /* [ */) {
+ start = pos + 1;
+ pos = state.md.helpers.parseLinkLabel(state, pos);
+ if (pos >= 0) {
+ label = state.src.slice(start, pos++);
+ } else {
+ pos = labelEnd + 1;
+ }
+ } else {
+ pos = labelEnd + 1;
+ }
+ // covers label === '' and label === undefined
+ // (collapsed reference link and shortcut reference link respectively)
+ if (!label) {
+ label = state.src.slice(labelStart, labelEnd);
+ }
+ ref = state.env.references[normalizeReference(label)];
+ if (!ref) {
+ state.pos = oldPos;
+ return false;
+ }
+ href = ref.href;
+ title = ref.title;
+ }
+
+ // We found the end of the link, and know for a fact it's a valid link;
+ // so all that's left to do is to call tokenizer.
+
+ if (!silent) {
+ content = state.src.slice(labelStart, labelEnd);
+ const tokens = [];
+ state.md.inline.parse(content, state.md, state.env, tokens);
+ const token = state.push("image", "img", 0);
+ const attrs = [ [ "src", href ], [ "alt", "" ] ];
+ token.attrs = attrs;
+ token.children = tokens;
+ token.content = content;
+ if (title) {
+ attrs.push([ "title", title ]);
+ }
+ }
+ state.pos = pos;
+ state.posMax = max;
+ return true;
+ }
+ // Process autolinks '<protocol:...>'
+ /* eslint max-len:0 */ const EMAIL_RE = /^([a-zA-Z0-9.!#$%&'*+/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*)$/;
+ /* eslint-disable-next-line no-control-regex */ const AUTOLINK_RE = /^([a-zA-Z][a-zA-Z0-9+.-]{1,31}):([^<>\x00-\x20]*)$/;
+ function autolink(state, silent) {
+ let pos = state.pos;
+ if (state.src.charCodeAt(pos) !== 60 /* < */) {
+ return false;
+ }
+ const start = state.pos;
+ const max = state.posMax;
+ for (;;) {
+ if (++pos >= max) return false;
+ const ch = state.src.charCodeAt(pos);
+ if (ch === 60 /* < */) return false;
+ if (ch === 62 /* > */) break;
+ }
+ const url = state.src.slice(start + 1, pos);
+ if (AUTOLINK_RE.test(url)) {
+ const fullUrl = state.md.normalizeLink(url);
+ if (!state.md.validateLink(fullUrl)) {
+ return false;
+ }
+ if (!silent) {
+ const token_o = state.push("link_open", "a", 1);
+ token_o.attrs = [ [ "href", fullUrl ] ];
+ token_o.markup = "autolink";
+ token_o.info = "auto";
+ const token_t = state.push("text", "", 0);
+ token_t.content = state.md.normalizeLinkText(url);
+ const token_c = state.push("link_close", "a", -1);
+ token_c.markup = "autolink";
+ token_c.info = "auto";
+ }
+ state.pos += url.length + 2;
+ return true;
+ }
+ if (EMAIL_RE.test(url)) {
+ const fullUrl = state.md.normalizeLink("mailto:" + url);
+ if (!state.md.validateLink(fullUrl)) {
+ return false;
+ }
+ if (!silent) {
+ const token_o = state.push("link_open", "a", 1);
+ token_o.attrs = [ [ "href", fullUrl ] ];
+ token_o.markup = "autolink";
+ token_o.info = "auto";
+ const token_t = state.push("text", "", 0);
+ token_t.content = state.md.normalizeLinkText(url);
+ const token_c = state.push("link_close", "a", -1);
+ token_c.markup = "autolink";
+ token_c.info = "auto";
+ }
+ state.pos += url.length + 2;
+ return true;
+ }
+ return false;
+ }
+ // Process html tags
+ function isLinkOpen(str) {
+ return /^<a[>\s]/i.test(str);
+ }
+ function isLinkClose(str) {
+ return /^<\/a\s*>/i.test(str);
+ }
+ function isLetter(ch) {
+ /* eslint no-bitwise:0 */
+ const lc = ch | 32;
+ // to lower case
+ return lc >= 97 /* a */ && lc <= 122 /* z */;
+ }
+ function html_inline(state, silent) {
+ if (!state.md.options.html) {
+ return false;
+ }
+ // Check start
+ const max = state.posMax;
+ const pos = state.pos;
+ if (state.src.charCodeAt(pos) !== 60 /* < */ || pos + 2 >= max) {
+ return false;
+ }
+ // Quick fail on second char
+ const ch = state.src.charCodeAt(pos + 1);
+ if (ch !== 33 /* ! */ && ch !== 63 /* ? */ && ch !== 47 /* / */ && !isLetter(ch)) {
+ return false;
+ }
+ const match = state.src.slice(pos).match(HTML_TAG_RE);
+ if (!match) {
+ return false;
+ }
+ if (!silent) {
+ const token = state.push("html_inline", "", 0);
+ token.content = match[0];
+ if (isLinkOpen(token.content)) state.linkLevel++;
+ if (isLinkClose(token.content)) state.linkLevel--;
+ }
+ state.pos += match[0].length;
+ return true;
+ }
+ // Process html entity - &#123;, &#xAF;, &quot;, ...
+ const DIGITAL_RE = /^&#((?:x[a-f0-9]{1,6}|[0-9]{1,7}));/i;
+ const NAMED_RE = /^&([a-z][a-z0-9]{1,31});/i;
+ function entity(state, silent) {
+ const pos = state.pos;
+ const max = state.posMax;
+ if (state.src.charCodeAt(pos) !== 38 /* & */) return false;
+ if (pos + 1 >= max) return false;
+ const ch = state.src.charCodeAt(pos + 1);
+ if (ch === 35 /* # */) {
+ const match = state.src.slice(pos).match(DIGITAL_RE);
+ if (match) {
+ if (!silent) {
+ const code = match[1][0].toLowerCase() === "x" ? parseInt(match[1].slice(1), 16) : parseInt(match[1], 10);
+ const token = state.push("text_special", "", 0);
+ token.content = isValidEntityCode(code) ? fromCodePoint(code) : fromCodePoint(65533);
+ token.markup = match[0];
+ token.info = "entity";
+ }
+ state.pos += match[0].length;
+ return true;
+ }
+ } else {
+ const match = state.src.slice(pos).match(NAMED_RE);
+ if (match) {
+ const decoded = decodeHTML(match[0]);
+ if (decoded !== match[0]) {
+ if (!silent) {
+ const token = state.push("text_special", "", 0);
+ token.content = decoded;
+ token.markup = match[0];
+ token.info = "entity";
+ }
+ state.pos += match[0].length;
+ return true;
+ }
+ }
+ }
+ return false;
+ }
+ // For each opening emphasis-like marker find a matching closing one
+
+ function processDelimiters(delimiters) {
+ const openersBottom = {};
+ const max = delimiters.length;
+ if (!max) return;
+ // headerIdx is the first delimiter of the current (where closer is) delimiter run
+ let headerIdx = 0;
+ let lastTokenIdx = -2;
+ // needs any value lower than -1
+ const jumps = [];
+ for (let closerIdx = 0; closerIdx < max; closerIdx++) {
+ const closer = delimiters[closerIdx];
+ jumps.push(0);
+ // markers belong to same delimiter run if:
+ // - they have adjacent tokens
+ // - AND markers are the same
+
+ if (delimiters[headerIdx].marker !== closer.marker || lastTokenIdx !== closer.token - 1) {
+ headerIdx = closerIdx;
+ }
+ lastTokenIdx = closer.token;
+ // Length is only used for emphasis-specific "rule of 3",
+ // if it's not defined (in strikethrough or 3rd party plugins),
+ // we can default it to 0 to disable those checks.
+
+ closer.length = closer.length || 0;
+ if (!closer.close) continue;
+ // Previously calculated lower bounds (previous fails)
+ // for each marker, each delimiter length modulo 3,
+ // and for whether this closer can be an opener;
+ // https://github.com/commonmark/cmark/commit/34250e12ccebdc6372b8b49c44fab57c72443460
+ /* eslint-disable-next-line no-prototype-builtins */ if (!openersBottom.hasOwnProperty(closer.marker)) {
+ openersBottom[closer.marker] = [ -1, -1, -1, -1, -1, -1 ];
+ }
+ const minOpenerIdx = openersBottom[closer.marker][(closer.open ? 3 : 0) + closer.length % 3];
+ let openerIdx = headerIdx - jumps[headerIdx] - 1;
+ let newMinOpenerIdx = openerIdx;
+ for (;openerIdx > minOpenerIdx; openerIdx -= jumps[openerIdx] + 1) {
+ const opener = delimiters[openerIdx];
+ if (opener.marker !== closer.marker) continue;
+ if (opener.open && opener.end < 0) {
+ let isOddMatch = false;
+ // from spec:
+
+ // If one of the delimiters can both open and close emphasis, then the
+ // sum of the lengths of the delimiter runs containing the opening and
+ // closing delimiters must not be a multiple of 3 unless both lengths
+ // are multiples of 3.
+
+ if (opener.close || closer.open) {
+ if ((opener.length + closer.length) % 3 === 0) {
+ if (opener.length % 3 !== 0 || closer.length % 3 !== 0) {
+ isOddMatch = true;
+ }
+ }
+ }
+ if (!isOddMatch) {
+ // If previous delimiter cannot be an opener, we can safely skip
+ // the entire sequence in future checks. This is required to make
+ // sure algorithm has linear complexity (see *_*_*_*_*_... case).
+ const lastJump = openerIdx > 0 && !delimiters[openerIdx - 1].open ? jumps[openerIdx - 1] + 1 : 0;
+ jumps[closerIdx] = closerIdx - openerIdx + lastJump;
+ jumps[openerIdx] = lastJump;
+ closer.open = false;
+ opener.end = closerIdx;
+ opener.close = false;
+ newMinOpenerIdx = -1;
+ // treat next token as start of run,
+ // it optimizes skips in **<...>**a**<...>** pathological case
+ lastTokenIdx = -2;
+ break;
+ }
+ }
+ }
+ if (newMinOpenerIdx !== -1) {
+ // If match for this delimiter run failed, we want to set lower bound for
+ // future lookups. This is required to make sure algorithm has linear
+ // complexity.
+ // See details here:
+ // https://github.com/commonmark/cmark/issues/178#issuecomment-270417442
+ openersBottom[closer.marker][(closer.open ? 3 : 0) + (closer.length || 0) % 3] = newMinOpenerIdx;
+ }
+ }
+ }
+ function link_pairs(state) {
+ const tokens_meta = state.tokens_meta;
+ const max = state.tokens_meta.length;
+ processDelimiters(state.delimiters);
+ for (let curr = 0; curr < max; curr++) {
+ if (tokens_meta[curr] && tokens_meta[curr].delimiters) {
+ processDelimiters(tokens_meta[curr].delimiters);
+ }
+ }
+ }
+ // Clean up tokens after emphasis and strikethrough postprocessing:
+ // merge adjacent text nodes into one and re-calculate all token levels
+
+ // This is necessary because initially emphasis delimiter markers (*, _, ~)
+ // are treated as their own separate text tokens. Then emphasis rule either
+ // leaves them as text (needed to merge with adjacent text) or turns them
+ // into opening/closing tags (which messes up levels inside).
+
+ function fragments_join(state) {
+ let curr, last;
+ let level = 0;
+ const tokens = state.tokens;
+ const max = state.tokens.length;
+ for (curr = last = 0; curr < max; curr++) {
+ // re-calculate levels after emphasis/strikethrough turns some text nodes
+ // into opening/closing tags
+ if (tokens[curr].nesting < 0) level--;
+ // closing tag
+ tokens[curr].level = level;
+ if (tokens[curr].nesting > 0) level++;
+ // opening tag
+ if (tokens[curr].type === "text" && curr + 1 < max && tokens[curr + 1].type === "text") {
+ // collapse two adjacent text nodes
+ tokens[curr + 1].content = tokens[curr].content + tokens[curr + 1].content;
+ } else {
+ if (curr !== last) {
+ tokens[last] = tokens[curr];
+ }
+ last++;
+ }
+ }
+ if (curr !== last) {
+ tokens.length = last;
+ }
+ }
+ /** internal
+ * class ParserInline
+ *
+ * Tokenizes paragraph content.
+ **/
+ // Parser rules
+ const _rules = [ [ "text", text ], [ "linkify", linkify ], [ "newline", newline ], [ "escape", escape ], [ "backticks", backtick ], [ "strikethrough", r_strikethrough.tokenize ], [ "emphasis", r_emphasis.tokenize ], [ "link", link ], [ "image", image ], [ "autolink", autolink ], [ "html_inline", html_inline ], [ "entity", entity ] ];
+ // `rule2` ruleset was created specifically for emphasis/strikethrough
+ // post-processing and may be changed in the future.
+
+ // Don't use this for anything except pairs (plugins working with `balance_pairs`).
+
+ const _rules2 = [ [ "balance_pairs", link_pairs ], [ "strikethrough", r_strikethrough.postProcess ], [ "emphasis", r_emphasis.postProcess ],
+ // rules for pairs separate '**' into its own text tokens, which may be left unused,
+ // rule below merges unused segments back with the rest of the text
+ [ "fragments_join", fragments_join ] ];
+ /**
+ * new ParserInline()
+ **/ function ParserInline() {
+ /**
+ * ParserInline#ruler -> Ruler
+ *
+ * [[Ruler]] instance. Keep configuration of inline rules.
+ **/
+ this.ruler = new Ruler;
+ for (let i = 0; i < _rules.length; i++) {
+ this.ruler.push(_rules[i][0], _rules[i][1]);
+ }
+ /**
+ * ParserInline#ruler2 -> Ruler
+ *
+ * [[Ruler]] instance. Second ruler used for post-processing
+ * (e.g. in emphasis-like rules).
+ **/ this.ruler2 = new Ruler;
+ for (let i = 0; i < _rules2.length; i++) {
+ this.ruler2.push(_rules2[i][0], _rules2[i][1]);
+ }
+ }
+ // Skip single token by running all rules in validation mode;
+ // returns `true` if any rule reported success
+
+ ParserInline.prototype.skipToken = function(state) {
+ const pos = state.pos;
+ const rules = this.ruler.getRules("");
+ const len = rules.length;
+ const maxNesting = state.md.options.maxNesting;
+ const cache = state.cache;
+ if (typeof cache[pos] !== "undefined") {
+ state.pos = cache[pos];
+ return;
+ }
+ let ok = false;
+ if (state.level < maxNesting) {
+ for (let i = 0; i < len; i++) {
+ // Increment state.level and decrement it later to limit recursion.
+ // It's harmless to do here, because no tokens are created. But ideally,
+ // we'd need a separate private state variable for this purpose.
+ state.level++;
+ ok = rules[i](state, true);
+ state.level--;
+ if (ok) {
+ if (pos >= state.pos) {
+ throw new Error("inline rule didn't increment state.pos");
+ }
+ break;
+ }
+ }
+ } else {
+ // Too much nesting, just skip until the end of the paragraph.
+ // NOTE: this will cause links to behave incorrectly in the following case,
+ // when an amount of `[` is exactly equal to `maxNesting + 1`:
+ // [[[[[[[[[[[[[[[[[[[[[foo]()
+ // TODO: remove this workaround when CM standard will allow nested links
+ // (we can replace it by preventing links from being parsed in
+ // validation mode)
+ state.pos = state.posMax;
+ }
+ if (!ok) {
+ state.pos++;
+ }
+ cache[pos] = state.pos;
+ };
+ // Generate tokens for input range
+
+ ParserInline.prototype.tokenize = function(state) {
+ const rules = this.ruler.getRules("");
+ const len = rules.length;
+ const end = state.posMax;
+ const maxNesting = state.md.options.maxNesting;
+ while (state.pos < end) {
+ // Try all possible rules.
+ // On success, rule should:
+ // - update `state.pos`
+ // - update `state.tokens`
+ // - return true
+ const prevPos = state.pos;
+ let ok = false;
+ if (state.level < maxNesting) {
+ for (let i = 0; i < len; i++) {
+ ok = rules[i](state, false);
+ if (ok) {
+ if (prevPos >= state.pos) {
+ throw new Error("inline rule didn't increment state.pos");
+ }
+ break;
+ }
+ }
+ }
+ if (ok) {
+ if (state.pos >= end) {
+ break;
+ }
+ continue;
+ }
+ state.pending += state.src[state.pos++];
+ }
+ if (state.pending) {
+ state.pushPending();
+ }
+ };
+ /**
+ * ParserInline.parse(str, md, env, outTokens)
+ *
+ * Process input string and push inline tokens into `outTokens`
+ **/ ParserInline.prototype.parse = function(str, md, env, outTokens) {
+ const state = new this.State(str, md, env, outTokens);
+ this.tokenize(state);
+ const rules = this.ruler2.getRules("");
+ const len = rules.length;
+ for (let i = 0; i < len; i++) {
+ rules[i](state);
+ }
+ };
+ ParserInline.prototype.State = StateInline;
+ function reFactory(opts) {
+ const re = {};
+ opts = opts || {};
+ re.src_Any = Any.source;
+ re.src_Cc = Cc.source;
+ re.src_Z = Z.source;
+ re.src_P = P.source;
+ // \p{\Z\P\Cc\CF} (white spaces + control + format + punctuation)
+ re.src_ZPCc = [ re.src_Z, re.src_P, re.src_Cc ].join("|");
+ // \p{\Z\Cc} (white spaces + control)
+ re.src_ZCc = [ re.src_Z, re.src_Cc ].join("|");
+ // Experimental. List of chars, completely prohibited in links
+ // because can separate it from other part of text
+ const text_separators = "[><\uff5c]";
+ // All possible word characters (everything without punctuation, spaces & controls)
+ // Defined via punctuation & spaces to save space
+ // Should be something like \p{\L\N\S\M} (\w but without `_`)
+ re.src_pseudo_letter = "(?:(?!" + text_separators + "|" + re.src_ZPCc + ")" + re.src_Any + ")";
+ // The same as abothe but without [0-9]
+ // var src_pseudo_letter_non_d = '(?:(?![0-9]|' + src_ZPCc + ')' + src_Any + ')';
+ re.src_ip4 = "(?:(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.){3}(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)";
+ // Prohibit any of "@/[]()" in user/pass to avoid wrong domain fetch.
+ re.src_auth = "(?:(?:(?!" + re.src_ZCc + "|[@/\\[\\]()]).)+@)?";
+ re.src_port = "(?::(?:6(?:[0-4]\\d{3}|5(?:[0-4]\\d{2}|5(?:[0-2]\\d|3[0-5])))|[1-5]?\\d{1,4}))?";
+ re.src_host_terminator = "(?=$|" + text_separators + "|" + re.src_ZPCc + ")" + "(?!" + (opts["---"] ? "-(?!--)|" : "-|") + "_|:\\d|\\.-|\\.(?!$|" + re.src_ZPCc + "))";
+ re.src_path = "(?:" + "[/?#]" + "(?:" + "(?!" + re.src_ZCc + "|" + text_separators + "|[()[\\]{}.,\"'?!\\-;]).|" + "\\[(?:(?!" + re.src_ZCc + "|\\]).)*\\]|" + "\\((?:(?!" + re.src_ZCc + "|[)]).)*\\)|" + "\\{(?:(?!" + re.src_ZCc + "|[}]).)*\\}|" + '\\"(?:(?!' + re.src_ZCc + '|["]).)+\\"|' + "\\'(?:(?!" + re.src_ZCc + "|[']).)+\\'|" +
+ // allow `I'm_king` if no pair found
+ "\\'(?=" + re.src_pseudo_letter + "|[-])|" +
+ // google has many dots in "google search" links (#66, #81).
+ // github has ... in commit range links,
+ // Restrict to
+ // - english
+ // - percent-encoded
+ // - parts of file path
+ // - params separator
+ // until more examples found.
+ "\\.{2,}[a-zA-Z0-9%/&]|" + "\\.(?!" + re.src_ZCc + "|[.]|$)|" + (opts["---"] ? "\\-(?!--(?:[^-]|$))(?:-*)|" : "\\-+|") +
+ // allow `,,,` in paths
+ ",(?!" + re.src_ZCc + "|$)|" +
+ // allow `;` if not followed by space-like char
+ ";(?!" + re.src_ZCc + "|$)|" +
+ // allow `!!!` in paths, but not at the end
+ "\\!+(?!" + re.src_ZCc + "|[!]|$)|" + "\\?(?!" + re.src_ZCc + "|[?]|$)" + ")+" + "|\\/" + ")?";
+ // Allow anything in markdown spec, forbid quote (") at the first position
+ // because emails enclosed in quotes are far more common
+ re.src_email_name = '[\\-;:&=\\+\\$,\\.a-zA-Z0-9_][\\-;:&=\\+\\$,\\"\\.a-zA-Z0-9_]*';
+ re.src_xn = "xn--[a-z0-9\\-]{1,59}";
+ // More to read about domain names
+ // http://serverfault.com/questions/638260/
+ re.src_domain_root =
+ // Allow letters & digits (http://test1)
+ "(?:" + re.src_xn + "|" + re.src_pseudo_letter + "{1,63}" + ")";
+ re.src_domain = "(?:" + re.src_xn + "|" + "(?:" + re.src_pseudo_letter + ")" + "|" + "(?:" + re.src_pseudo_letter + "(?:-|" + re.src_pseudo_letter + "){0,61}" + re.src_pseudo_letter + ")" + ")";
+ re.src_host = "(?:" +
+ // Don't need IP check, because digits are already allowed in normal domain names
+ // src_ip4 +
+ // '|' +
+ "(?:(?:(?:" + re.src_domain + ")\\.)*" + re.src_domain /* _root */ + ")" + ")";
+ re.tpl_host_fuzzy = "(?:" + re.src_ip4 + "|" + "(?:(?:(?:" + re.src_domain + ")\\.)+(?:%TLDS%))" + ")";
+ re.tpl_host_no_ip_fuzzy = "(?:(?:(?:" + re.src_domain + ")\\.)+(?:%TLDS%))";
+ re.src_host_strict = re.src_host + re.src_host_terminator;
+ re.tpl_host_fuzzy_strict = re.tpl_host_fuzzy + re.src_host_terminator;
+ re.src_host_port_strict = re.src_host + re.src_port + re.src_host_terminator;
+ re.tpl_host_port_fuzzy_strict = re.tpl_host_fuzzy + re.src_port + re.src_host_terminator;
+ re.tpl_host_port_no_ip_fuzzy_strict = re.tpl_host_no_ip_fuzzy + re.src_port + re.src_host_terminator;
+
+ // Main rules
+
+ // Rude test fuzzy links by host, for quick deny
+ re.tpl_host_fuzzy_test = "localhost|www\\.|\\.\\d{1,3}\\.|(?:\\.(?:%TLDS%)(?:" + re.src_ZPCc + "|>|$))";
+ re.tpl_email_fuzzy = "(^|" + text_separators + '|"|\\(|' + re.src_ZCc + ")" + "(" + re.src_email_name + "@" + re.tpl_host_fuzzy_strict + ")";
+ re.tpl_link_fuzzy =
+ // Fuzzy link can't be prepended with .:/\- and non punctuation.
+ // but can start with > (markdown blockquote)
+ "(^|(?![.:/\\-_@])(?:[$+<=>^`|\uff5c]|" + re.src_ZPCc + "))" + "((?![$+<=>^`|\uff5c])" + re.tpl_host_port_fuzzy_strict + re.src_path + ")";
+ re.tpl_link_no_ip_fuzzy =
+ // Fuzzy link can't be prepended with .:/\- and non punctuation.
+ // but can start with > (markdown blockquote)
+ "(^|(?![.:/\\-_@])(?:[$+<=>^`|\uff5c]|" + re.src_ZPCc + "))" + "((?![$+<=>^`|\uff5c])" + re.tpl_host_port_no_ip_fuzzy_strict + re.src_path + ")";
+ return re;
+ }
+
+ // Helpers
+
+ // Merge objects
+
+ function assign(obj /* from1, from2, from3, ... */) {
+ const sources = Array.prototype.slice.call(arguments, 1);
+ sources.forEach((function(source) {
+ if (!source) {
+ return;
+ }
+ Object.keys(source).forEach((function(key) {
+ obj[key] = source[key];
+ }));
+ }));
+ return obj;
+ }
+ function _class(obj) {
+ return Object.prototype.toString.call(obj);
+ }
+ function isString(obj) {
+ return _class(obj) === "[object String]";
+ }
+ function isObject(obj) {
+ return _class(obj) === "[object Object]";
+ }
+ function isRegExp(obj) {
+ return _class(obj) === "[object RegExp]";
+ }
+ function isFunction(obj) {
+ return _class(obj) === "[object Function]";
+ }
+ function escapeRE(str) {
+ return str.replace(/[.?*+^$[\]\\(){}|-]/g, "\\$&");
+ }
+
+ const defaultOptions = {
+ fuzzyLink: true,
+ fuzzyEmail: true,
+ fuzzyIP: false
+ };
+ function isOptionsObj(obj) {
+ return Object.keys(obj || {}).reduce((function(acc, k) {
+ /* eslint-disable-next-line no-prototype-builtins */
+ return acc || defaultOptions.hasOwnProperty(k);
+ }), false);
+ }
+ const defaultSchemas = {
+ "http:": {
+ validate: function(text, pos, self) {
+ const tail = text.slice(pos);
+ if (!self.re.http) {
+ // compile lazily, because "host"-containing variables can change on tlds update.
+ self.re.http = new RegExp("^\\/\\/" + self.re.src_auth + self.re.src_host_port_strict + self.re.src_path, "i");
+ }
+ if (self.re.http.test(tail)) {
+ return tail.match(self.re.http)[0].length;
+ }
+ return 0;
+ }
+ },
+ "https:": "http:",
+ "ftp:": "http:",
+ "//": {
+ validate: function(text, pos, self) {
+ const tail = text.slice(pos);
+ if (!self.re.no_http) {
+ // compile lazily, because "host"-containing variables can change on tlds update.
+ self.re.no_http = new RegExp("^" + self.re.src_auth +
+ // Don't allow single-level domains, because of false positives like '//test'
+ // with code comments
+ "(?:localhost|(?:(?:" + self.re.src_domain + ")\\.)+" + self.re.src_domain_root + ")" + self.re.src_port + self.re.src_host_terminator + self.re.src_path, "i");
+ }
+ if (self.re.no_http.test(tail)) {
+ // should not be `://` & `///`, that protects from errors in protocol name
+ if (pos >= 3 && text[pos - 3] === ":") {
+ return 0;
+ }
+ if (pos >= 3 && text[pos - 3] === "/") {
+ return 0;
+ }
+ return tail.match(self.re.no_http)[0].length;
+ }
+ return 0;
+ }
+ },
+ "mailto:": {
+ validate: function(text, pos, self) {
+ const tail = text.slice(pos);
+ if (!self.re.mailto) {
+ self.re.mailto = new RegExp("^" + self.re.src_email_name + "@" + self.re.src_host_strict, "i");
+ }
+ if (self.re.mailto.test(tail)) {
+ return tail.match(self.re.mailto)[0].length;
+ }
+ return 0;
+ }
+ }
+ };
+ // RE pattern for 2-character tlds (autogenerated by ./support/tlds_2char_gen.js)
+ /* eslint-disable-next-line max-len */ const tlds_2ch_src_re = "a[cdefgilmnoqrstuwxz]|b[abdefghijmnorstvwyz]|c[acdfghiklmnoruvwxyz]|d[ejkmoz]|e[cegrstu]|f[ijkmor]|g[abdefghilmnpqrstuwy]|h[kmnrtu]|i[delmnoqrst]|j[emop]|k[eghimnprwyz]|l[abcikrstuvy]|m[acdeghklmnopqrstuvwxyz]|n[acefgilopruz]|om|p[aefghklmnrstwy]|qa|r[eosuw]|s[abcdeghijklmnortuvxyz]|t[cdfghjklmnortvwz]|u[agksyz]|v[aceginu]|w[fs]|y[et]|z[amw]";
+ // DON'T try to make PRs with changes. Extend TLDs with LinkifyIt.tlds() instead
+ const tlds_default = "biz|com|edu|gov|net|org|pro|web|xxx|aero|asia|coop|info|museum|name|shop|\u0440\u0444".split("|");
+ function resetScanCache(self) {
+ self.__index__ = -1;
+ self.__text_cache__ = "";
+ }
+ function createValidator(re) {
+ return function(text, pos) {
+ const tail = text.slice(pos);
+ if (re.test(tail)) {
+ return tail.match(re)[0].length;
+ }
+ return 0;
+ };
+ }
+ function createNormalizer() {
+ return function(match, self) {
+ self.normalize(match);
+ };
+ }
+ // Schemas compiler. Build regexps.
+
+ function compile(self) {
+ // Load & clone RE patterns.
+ const re = self.re = reFactory(self.__opts__);
+ // Define dynamic patterns
+ const tlds = self.__tlds__.slice();
+ self.onCompile();
+ if (!self.__tlds_replaced__) {
+ tlds.push(tlds_2ch_src_re);
+ }
+ tlds.push(re.src_xn);
+ re.src_tlds = tlds.join("|");
+ function untpl(tpl) {
+ return tpl.replace("%TLDS%", re.src_tlds);
+ }
+ re.email_fuzzy = RegExp(untpl(re.tpl_email_fuzzy), "i");
+ re.link_fuzzy = RegExp(untpl(re.tpl_link_fuzzy), "i");
+ re.link_no_ip_fuzzy = RegExp(untpl(re.tpl_link_no_ip_fuzzy), "i");
+ re.host_fuzzy_test = RegExp(untpl(re.tpl_host_fuzzy_test), "i");
+
+ // Compile each schema
+
+ const aliases = [];
+ self.__compiled__ = {};
+ // Reset compiled data
+ function schemaError(name, val) {
+ throw new Error('(LinkifyIt) Invalid schema "' + name + '": ' + val);
+ }
+ Object.keys(self.__schemas__).forEach((function(name) {
+ const val = self.__schemas__[name];
+ // skip disabled methods
+ if (val === null) {
+ return;
+ }
+ const compiled = {
+ validate: null,
+ link: null
+ };
+ self.__compiled__[name] = compiled;
+ if (isObject(val)) {
+ if (isRegExp(val.validate)) {
+ compiled.validate = createValidator(val.validate);
+ } else if (isFunction(val.validate)) {
+ compiled.validate = val.validate;
+ } else {
+ schemaError(name, val);
+ }
+ if (isFunction(val.normalize)) {
+ compiled.normalize = val.normalize;
+ } else if (!val.normalize) {
+ compiled.normalize = createNormalizer();
+ } else {
+ schemaError(name, val);
+ }
+ return;
+ }
+ if (isString(val)) {
+ aliases.push(name);
+ return;
+ }
+ schemaError(name, val);
+ }));
+
+ // Compile postponed aliases
+
+ aliases.forEach((function(alias) {
+ if (!self.__compiled__[self.__schemas__[alias]]) {
+ // Silently fail on missed schemas to avoid errons on disable.
+ // schemaError(alias, self.__schemas__[alias]);
+ return;
+ }
+ self.__compiled__[alias].validate = self.__compiled__[self.__schemas__[alias]].validate;
+ self.__compiled__[alias].normalize = self.__compiled__[self.__schemas__[alias]].normalize;
+ }));
+
+ // Fake record for guessed links
+
+ self.__compiled__[""] = {
+ validate: null,
+ normalize: createNormalizer()
+ };
+
+ // Build schema condition
+
+ const slist = Object.keys(self.__compiled__).filter((function(name) {
+ // Filter disabled & fake schemas
+ return name.length > 0 && self.__compiled__[name];
+ })).map(escapeRE).join("|");
+ // (?!_) cause 1.5x slowdown
+ self.re.schema_test = RegExp("(^|(?!_)(?:[><\uff5c]|" + re.src_ZPCc + "))(" + slist + ")", "i");
+ self.re.schema_search = RegExp("(^|(?!_)(?:[><\uff5c]|" + re.src_ZPCc + "))(" + slist + ")", "ig");
+ self.re.schema_at_start = RegExp("^" + self.re.schema_search.source, "i");
+ self.re.pretest = RegExp("(" + self.re.schema_test.source + ")|(" + self.re.host_fuzzy_test.source + ")|@", "i");
+
+ // Cleanup
+
+ resetScanCache(self);
+ }
+ /**
+ * class Match
+ *
+ * Match result. Single element of array, returned by [[LinkifyIt#match]]
+ **/ function Match(self, shift) {
+ const start = self.__index__;
+ const end = self.__last_index__;
+ const text = self.__text_cache__.slice(start, end);
+ /**
+ * Match#schema -> String
+ *
+ * Prefix (protocol) for matched string.
+ **/ this.schema = self.__schema__.toLowerCase();
+ /**
+ * Match#index -> Number
+ *
+ * First position of matched string.
+ **/ this.index = start + shift;
+ /**
+ * Match#lastIndex -> Number
+ *
+ * Next position after matched string.
+ **/ this.lastIndex = end + shift;
+ /**
+ * Match#raw -> String
+ *
+ * Matched string.
+ **/ this.raw = text;
+ /**
+ * Match#text -> String
+ *
+ * Notmalized text of matched string.
+ **/ this.text = text;
+ /**
+ * Match#url -> String
+ *
+ * Normalized url of matched string.
+ **/ this.url = text;
+ }
+ function createMatch(self, shift) {
+ const match = new Match(self, shift);
+ self.__compiled__[match.schema].normalize(match, self);
+ return match;
+ }
+ /**
+ * class LinkifyIt
+ **/
+ /**
+ * new LinkifyIt(schemas, options)
+ * - schemas (Object): Optional. Additional schemas to validate (prefix/validator)
+ * - options (Object): { fuzzyLink|fuzzyEmail|fuzzyIP: true|false }
+ *
+ * Creates new linkifier instance with optional additional schemas.
+ * Can be called without `new` keyword for convenience.
+ *
+ * By default understands:
+ *
+ * - `http(s)://...` , `ftp://...`, `mailto:...` & `//...` links
+ * - "fuzzy" links and emails (example.com, foo@bar.com).
+ *
+ * `schemas` is an object, where each key/value describes protocol/rule:
+ *
+ * - __key__ - link prefix (usually, protocol name with `:` at the end, `skype:`
+ * for example). `linkify-it` makes shure that prefix is not preceeded with
+ * alphanumeric char and symbols. Only whitespaces and punctuation allowed.
+ * - __value__ - rule to check tail after link prefix
+ * - _String_ - just alias to existing rule
+ * - _Object_
+ * - _validate_ - validator function (should return matched length on success),
+ * or `RegExp`.
+ * - _normalize_ - optional function to normalize text & url of matched result
+ * (for example, for @twitter mentions).
+ *
+ * `options`:
+ *
+ * - __fuzzyLink__ - recognige URL-s without `http(s):` prefix. Default `true`.
+ * - __fuzzyIP__ - allow IPs in fuzzy links above. Can conflict with some texts
+ * like version numbers. Default `false`.
+ * - __fuzzyEmail__ - recognize emails without `mailto:` prefix.
+ *
+ **/ function LinkifyIt(schemas, options) {
+ if (!(this instanceof LinkifyIt)) {
+ return new LinkifyIt(schemas, options);
+ }
+ if (!options) {
+ if (isOptionsObj(schemas)) {
+ options = schemas;
+ schemas = {};
+ }
+ }
+ this.__opts__ = assign({}, defaultOptions, options);
+ // Cache last tested result. Used to skip repeating steps on next `match` call.
+ this.__index__ = -1;
+ this.__last_index__ = -1;
+ // Next scan position
+ this.__schema__ = "";
+ this.__text_cache__ = "";
+ this.__schemas__ = assign({}, defaultSchemas, schemas);
+ this.__compiled__ = {};
+ this.__tlds__ = tlds_default;
+ this.__tlds_replaced__ = false;
+ this.re = {};
+ compile(this);
+ }
+ /** chainable
+ * LinkifyIt#add(schema, definition)
+ * - schema (String): rule name (fixed pattern prefix)
+ * - definition (String|RegExp|Object): schema definition
+ *
+ * Add new rule definition. See constructor description for details.
+ **/ LinkifyIt.prototype.add = function add(schema, definition) {
+ this.__schemas__[schema] = definition;
+ compile(this);
+ return this;
+ };
+ /** chainable
+ * LinkifyIt#set(options)
+ * - options (Object): { fuzzyLink|fuzzyEmail|fuzzyIP: true|false }
+ *
+ * Set recognition options for links without schema.
+ **/ LinkifyIt.prototype.set = function set(options) {
+ this.__opts__ = assign(this.__opts__, options);
+ return this;
+ };
+ /**
+ * LinkifyIt#test(text) -> Boolean
+ *
+ * Searches linkifiable pattern and returns `true` on success or `false` on fail.
+ **/ LinkifyIt.prototype.test = function test(text) {
+ // Reset scan cache
+ this.__text_cache__ = text;
+ this.__index__ = -1;
+ if (!text.length) {
+ return false;
+ }
+ let m, ml, me, len, shift, next, re, tld_pos, at_pos;
+ // try to scan for link with schema - that's the most simple rule
+ if (this.re.schema_test.test(text)) {
+ re = this.re.schema_search;
+ re.lastIndex = 0;
+ while ((m = re.exec(text)) !== null) {
+ len = this.testSchemaAt(text, m[2], re.lastIndex);
+ if (len) {
+ this.__schema__ = m[2];
+ this.__index__ = m.index + m[1].length;
+ this.__last_index__ = m.index + m[0].length + len;
+ break;
+ }
+ }
+ }
+ if (this.__opts__.fuzzyLink && this.__compiled__["http:"]) {
+ // guess schemaless links
+ tld_pos = text.search(this.re.host_fuzzy_test);
+ if (tld_pos >= 0) {
+ // if tld is located after found link - no need to check fuzzy pattern
+ if (this.__index__ < 0 || tld_pos < this.__index__) {
+ if ((ml = text.match(this.__opts__.fuzzyIP ? this.re.link_fuzzy : this.re.link_no_ip_fuzzy)) !== null) {
+ shift = ml.index + ml[1].length;
+ if (this.__index__ < 0 || shift < this.__index__) {
+ this.__schema__ = "";
+ this.__index__ = shift;
+ this.__last_index__ = ml.index + ml[0].length;
+ }
+ }
+ }
+ }
+ }
+ if (this.__opts__.fuzzyEmail && this.__compiled__["mailto:"]) {
+ // guess schemaless emails
+ at_pos = text.indexOf("@");
+ if (at_pos >= 0) {
+ // We can't skip this check, because this cases are possible:
+ // 192.168.1.1@gmail.com, my.in@example.com
+ if ((me = text.match(this.re.email_fuzzy)) !== null) {
+ shift = me.index + me[1].length;
+ next = me.index + me[0].length;
+ if (this.__index__ < 0 || shift < this.__index__ || shift === this.__index__ && next > this.__last_index__) {
+ this.__schema__ = "mailto:";
+ this.__index__ = shift;
+ this.__last_index__ = next;
+ }
+ }
+ }
+ }
+ return this.__index__ >= 0;
+ };
+ /**
+ * LinkifyIt#pretest(text) -> Boolean
+ *
+ * Very quick check, that can give false positives. Returns true if link MAY BE
+ * can exists. Can be used for speed optimization, when you need to check that
+ * link NOT exists.
+ **/ LinkifyIt.prototype.pretest = function pretest(text) {
+ return this.re.pretest.test(text);
+ };
+ /**
+ * LinkifyIt#testSchemaAt(text, name, position) -> Number
+ * - text (String): text to scan
+ * - name (String): rule (schema) name
+ * - position (Number): text offset to check from
+ *
+ * Similar to [[LinkifyIt#test]] but checks only specific protocol tail exactly
+ * at given position. Returns length of found pattern (0 on fail).
+ **/ LinkifyIt.prototype.testSchemaAt = function testSchemaAt(text, schema, pos) {
+ // If not supported schema check requested - terminate
+ if (!this.__compiled__[schema.toLowerCase()]) {
+ return 0;
+ }
+ return this.__compiled__[schema.toLowerCase()].validate(text, pos, this);
+ };
+ /**
+ * LinkifyIt#match(text) -> Array|null
+ *
+ * Returns array of found link descriptions or `null` on fail. We strongly
+ * recommend to use [[LinkifyIt#test]] first, for best speed.
+ *
+ * ##### Result match description
+ *
+ * - __schema__ - link schema, can be empty for fuzzy links, or `//` for
+ * protocol-neutral links.
+ * - __index__ - offset of matched text
+ * - __lastIndex__ - index of next char after mathch end
+ * - __raw__ - matched text
+ * - __text__ - normalized text
+ * - __url__ - link, generated from matched text
+ **/ LinkifyIt.prototype.match = function match(text) {
+ const result = [];
+ let shift = 0;
+ // Try to take previous element from cache, if .test() called before
+ if (this.__index__ >= 0 && this.__text_cache__ === text) {
+ result.push(createMatch(this, shift));
+ shift = this.__last_index__;
+ }
+ // Cut head if cache was used
+ let tail = shift ? text.slice(shift) : text;
+ // Scan string until end reached
+ while (this.test(tail)) {
+ result.push(createMatch(this, shift));
+ tail = tail.slice(this.__last_index__);
+ shift += this.__last_index__;
+ }
+ if (result.length) {
+ return result;
+ }
+ return null;
+ };
+ /**
+ * LinkifyIt#matchAtStart(text) -> Match|null
+ *
+ * Returns fully-formed (not fuzzy) link if it starts at the beginning
+ * of the string, and null otherwise.
+ **/ LinkifyIt.prototype.matchAtStart = function matchAtStart(text) {
+ // Reset scan cache
+ this.__text_cache__ = text;
+ this.__index__ = -1;
+ if (!text.length) return null;
+ const m = this.re.schema_at_start.exec(text);
+ if (!m) return null;
+ const len = this.testSchemaAt(text, m[2], m[0].length);
+ if (!len) return null;
+ this.__schema__ = m[2];
+ this.__index__ = m.index + m[1].length;
+ this.__last_index__ = m.index + m[0].length + len;
+ return createMatch(this, 0);
+ };
+ /** chainable
+ * LinkifyIt#tlds(list [, keepOld]) -> this
+ * - list (Array): list of tlds
+ * - keepOld (Boolean): merge with current list if `true` (`false` by default)
+ *
+ * Load (or merge) new tlds list. Those are user for fuzzy links (without prefix)
+ * to avoid false positives. By default this algorythm used:
+ *
+ * - hostname with any 2-letter root zones are ok.
+ * - biz|com|edu|gov|net|org|pro|web|xxx|aero|asia|coop|info|museum|name|shop|рф
+ * are ok.
+ * - encoded (`xn--...`) root zones are ok.
+ *
+ * If list is replaced, then exact match for 2-chars root zones will be checked.
+ **/ LinkifyIt.prototype.tlds = function tlds(list, keepOld) {
+ list = Array.isArray(list) ? list : [ list ];
+ if (!keepOld) {
+ this.__tlds__ = list.slice();
+ this.__tlds_replaced__ = true;
+ compile(this);
+ return this;
+ }
+ this.__tlds__ = this.__tlds__.concat(list).sort().filter((function(el, idx, arr) {
+ return el !== arr[idx - 1];
+ })).reverse();
+ compile(this);
+ return this;
+ };
+ /**
+ * LinkifyIt#normalize(match)
+ *
+ * Default normalizer (if schema does not define it's own).
+ **/ LinkifyIt.prototype.normalize = function normalize(match) {
+ // Do minimal possible changes by default. Need to collect feedback prior
+ // to move forward https://github.com/markdown-it/linkify-it/issues/1
+ if (!match.schema) {
+ match.url = "http://" + match.url;
+ }
+ if (match.schema === "mailto:" && !/^mailto:/i.test(match.url)) {
+ match.url = "mailto:" + match.url;
+ }
+ };
+ /**
+ * LinkifyIt#onCompile()
+ *
+ * Override to modify basic RegExp-s.
+ **/ LinkifyIt.prototype.onCompile = function onCompile() {};
+ /** Highest positive signed 32-bit float value */ const maxInt = 2147483647;
+ // aka. 0x7FFFFFFF or 2^31-1
+ /** Bootstring parameters */ const base = 36;
+ const tMin = 1;
+ const tMax = 26;
+ const skew = 38;
+ const damp = 700;
+ const initialBias = 72;
+ const initialN = 128;
+ // 0x80
+ const delimiter = "-";
+ // '\x2D'
+ /** Regular expressions */ const regexPunycode = /^xn--/;
+ const regexNonASCII = /[^\0-\x7F]/;
+ // Note: U+007F DEL is excluded too.
+ const regexSeparators = /[\x2E\u3002\uFF0E\uFF61]/g;
+ // RFC 3490 separators
+ /** Error messages */ const errors = {
+ overflow: "Overflow: input needs wider integers to process",
+ "not-basic": "Illegal input >= 0x80 (not a basic code point)",
+ "invalid-input": "Invalid input"
+ };
+ /** Convenience shortcuts */ const baseMinusTMin = base - tMin;
+ const floor = Math.floor;
+ const stringFromCharCode = String.fromCharCode;
+ /*--------------------------------------------------------------------------*/
+ /**
+ * A generic error utility function.
+ * @private
+ * @param {String} type The error type.
+ * @returns {Error} Throws a `RangeError` with the applicable error message.
+ */ function error(type) {
+ throw new RangeError(errors[type]);
+ }
+ /**
+ * A generic `Array#map` utility function.
+ * @private
+ * @param {Array} array The array to iterate over.
+ * @param {Function} callback The function that gets called for every array
+ * item.
+ * @returns {Array} A new array of values returned by the callback function.
+ */ function map(array, callback) {
+ const result = [];
+ let length = array.length;
+ while (length--) {
+ result[length] = callback(array[length]);
+ }
+ return result;
+ }
+ /**
+ * A simple `Array#map`-like wrapper to work with domain name strings or email
+ * addresses.
+ * @private
+ * @param {String} domain The domain name or email address.
+ * @param {Function} callback The function that gets called for every
+ * character.
+ * @returns {String} A new string of characters returned by the callback
+ * function.
+ */ function mapDomain(domain, callback) {
+ const parts = domain.split("@");
+ let result = "";
+ if (parts.length > 1) {
+ // In email addresses, only the domain name should be punycoded. Leave
+ // the local part (i.e. everything up to `@`) intact.
+ result = parts[0] + "@";
+ domain = parts[1];
+ }
+ // Avoid `split(regex)` for IE8 compatibility. See #17.
+ domain = domain.replace(regexSeparators, ".");
+ const labels = domain.split(".");
+ const encoded = map(labels, callback).join(".");
+ return result + encoded;
+ }
+ /**
+ * Creates an array containing the numeric code points of each Unicode
+ * character in the string. While JavaScript uses UCS-2 internally,
+ * this function will convert a pair of surrogate halves (each of which
+ * UCS-2 exposes as separate characters) into a single code point,
+ * matching UTF-16.
+ * @see `punycode.ucs2.encode`
+ * @see <https://mathiasbynens.be/notes/javascript-encoding>
+ * @memberOf punycode.ucs2
+ * @name decode
+ * @param {String} string The Unicode input string (UCS-2).
+ * @returns {Array} The new array of code points.
+ */ function ucs2decode(string) {
+ const output = [];
+ let counter = 0;
+ const length = string.length;
+ while (counter < length) {
+ const value = string.charCodeAt(counter++);
+ if (value >= 55296 && value <= 56319 && counter < length) {
+ // It's a high surrogate, and there is a next character.
+ const extra = string.charCodeAt(counter++);
+ if ((extra & 64512) == 56320) {
+ // Low surrogate.
+ output.push(((value & 1023) << 10) + (extra & 1023) + 65536);
+ } else {
+ // It's an unmatched surrogate; only append this code unit, in case the
+ // next code unit is the high surrogate of a surrogate pair.
+ output.push(value);
+ counter--;
+ }
+ } else {
+ output.push(value);
+ }
+ }
+ return output;
+ }
+ /**
+ * Creates a string based on an array of numeric code points.
+ * @see `punycode.ucs2.decode`
+ * @memberOf punycode.ucs2
+ * @name encode
+ * @param {Array} codePoints The array of numeric code points.
+ * @returns {String} The new Unicode string (UCS-2).
+ */ const ucs2encode = codePoints => String.fromCodePoint(...codePoints)
+ /**
+ * Converts a basic code point into a digit/integer.
+ * @see `digitToBasic()`
+ * @private
+ * @param {Number} codePoint The basic numeric code point value.
+ * @returns {Number} The numeric value of a basic code point (for use in
+ * representing integers) in the range `0` to `base - 1`, or `base` if
+ * the code point does not represent a value.
+ */;
+ const basicToDigit = function(codePoint) {
+ if (codePoint >= 48 && codePoint < 58) {
+ return 26 + (codePoint - 48);
+ }
+ if (codePoint >= 65 && codePoint < 91) {
+ return codePoint - 65;
+ }
+ if (codePoint >= 97 && codePoint < 123) {
+ return codePoint - 97;
+ }
+ return base;
+ };
+ /**
+ * Converts a digit/integer into a basic code point.
+ * @see `basicToDigit()`
+ * @private
+ * @param {Number} digit The numeric value of a basic code point.
+ * @returns {Number} The basic code point whose value (when used for
+ * representing integers) is `digit`, which needs to be in the range
+ * `0` to `base - 1`. If `flag` is non-zero, the uppercase form is
+ * used; else, the lowercase form is used. The behavior is undefined
+ * if `flag` is non-zero and `digit` has no uppercase form.
+ */ const digitToBasic = function(digit, flag) {
+ // 0..25 map to ASCII a..z or A..Z
+ // 26..35 map to ASCII 0..9
+ return digit + 22 + 75 * (digit < 26) - ((flag != 0) << 5);
+ };
+ /**
+ * Bias adaptation function as per section 3.4 of RFC 3492.
+ * https://tools.ietf.org/html/rfc3492#section-3.4
+ * @private
+ */ const adapt = function(delta, numPoints, firstTime) {
+ let k = 0;
+ delta = firstTime ? floor(delta / damp) : delta >> 1;
+ delta += floor(delta / numPoints);
+ for (;delta > baseMinusTMin * tMax >> 1; k += base) {
+ delta = floor(delta / baseMinusTMin);
+ }
+ return floor(k + (baseMinusTMin + 1) * delta / (delta + skew));
+ };
+ /**
+ * Converts a Punycode string of ASCII-only symbols to a string of Unicode
+ * symbols.
+ * @memberOf punycode
+ * @param {String} input The Punycode string of ASCII-only symbols.
+ * @returns {String} The resulting string of Unicode symbols.
+ */ const decode = function(input) {
+ // Don't use UCS-2.
+ const output = [];
+ const inputLength = input.length;
+ let i = 0;
+ let n = initialN;
+ let bias = initialBias;
+ // Handle the basic code points: let `basic` be the number of input code
+ // points before the last delimiter, or `0` if there is none, then copy
+ // the first basic code points to the output.
+ let basic = input.lastIndexOf(delimiter);
+ if (basic < 0) {
+ basic = 0;
+ }
+ for (let j = 0; j < basic; ++j) {
+ // if it's not a basic code point
+ if (input.charCodeAt(j) >= 128) {
+ error("not-basic");
+ }
+ output.push(input.charCodeAt(j));
+ }
+ // Main decoding loop: start just after the last delimiter if any basic code
+ // points were copied; start at the beginning otherwise.
+ for (let index = basic > 0 ? basic + 1 : 0; index < inputLength; ) {
+ // `index` is the index of the next character to be consumed.
+ // Decode a generalized variable-length integer into `delta`,
+ // which gets added to `i`. The overflow checking is easier
+ // if we increase `i` as we go, then subtract off its starting
+ // value at the end to obtain `delta`.
+ const oldi = i;
+ for (let w = 1, k = base; ;k += base) {
+ if (index >= inputLength) {
+ error("invalid-input");
+ }
+ const digit = basicToDigit(input.charCodeAt(index++));
+ if (digit >= base) {
+ error("invalid-input");
+ }
+ if (digit > floor((maxInt - i) / w)) {
+ error("overflow");
+ }
+ i += digit * w;
+ const t = k <= bias ? tMin : k >= bias + tMax ? tMax : k - bias;
+ if (digit < t) {
+ break;
+ }
+ const baseMinusT = base - t;
+ if (w > floor(maxInt / baseMinusT)) {
+ error("overflow");
+ }
+ w *= baseMinusT;
+ }
+ const out = output.length + 1;
+ bias = adapt(i - oldi, out, oldi == 0);
+ // `i` was supposed to wrap around from `out` to `0`,
+ // incrementing `n` each time, so we'll fix that now:
+ if (floor(i / out) > maxInt - n) {
+ error("overflow");
+ }
+ n += floor(i / out);
+ i %= out;
+ // Insert `n` at position `i` of the output.
+ output.splice(i++, 0, n);
+ }
+ return String.fromCodePoint(...output);
+ };
+ /**
+ * Converts a string of Unicode symbols (e.g. a domain name label) to a
+ * Punycode string of ASCII-only symbols.
+ * @memberOf punycode
+ * @param {String} input The string of Unicode symbols.
+ * @returns {String} The resulting Punycode string of ASCII-only symbols.
+ */ const encode = function(input) {
+ const output = [];
+ // Convert the input in UCS-2 to an array of Unicode code points.
+ input = ucs2decode(input);
+ // Cache the length.
+ const inputLength = input.length;
+ // Initialize the state.
+ let n = initialN;
+ let delta = 0;
+ let bias = initialBias;
+ // Handle the basic code points.
+ for (const currentValue of input) {
+ if (currentValue < 128) {
+ output.push(stringFromCharCode(currentValue));
+ }
+ }
+ const basicLength = output.length;
+ let handledCPCount = basicLength;
+ // `handledCPCount` is the number of code points that have been handled;
+ // `basicLength` is the number of basic code points.
+ // Finish the basic string with a delimiter unless it's empty.
+ if (basicLength) {
+ output.push(delimiter);
+ }
+ // Main encoding loop:
+ while (handledCPCount < inputLength) {
+ // All non-basic code points < n have been handled already. Find the next
+ // larger one:
+ let m = maxInt;
+ for (const currentValue of input) {
+ if (currentValue >= n && currentValue < m) {
+ m = currentValue;
+ }
+ }
+ // Increase `delta` enough to advance the decoder's <n,i> state to <m,0>,
+ // but guard against overflow.
+ const handledCPCountPlusOne = handledCPCount + 1;
+ if (m - n > floor((maxInt - delta) / handledCPCountPlusOne)) {
+ error("overflow");
+ }
+ delta += (m - n) * handledCPCountPlusOne;
+ n = m;
+ for (const currentValue of input) {
+ if (currentValue < n && ++delta > maxInt) {
+ error("overflow");
+ }
+ if (currentValue === n) {
+ // Represent delta as a generalized variable-length integer.
+ let q = delta;
+ for (let k = base; ;k += base) {
+ const t = k <= bias ? tMin : k >= bias + tMax ? tMax : k - bias;
+ if (q < t) {
+ break;
+ }
+ const qMinusT = q - t;
+ const baseMinusT = base - t;
+ output.push(stringFromCharCode(digitToBasic(t + qMinusT % baseMinusT, 0)));
+ q = floor(qMinusT / baseMinusT);
+ }
+ output.push(stringFromCharCode(digitToBasic(q, 0)));
+ bias = adapt(delta, handledCPCountPlusOne, handledCPCount === basicLength);
+ delta = 0;
+ ++handledCPCount;
+ }
+ }
+ ++delta;
+ ++n;
+ }
+ return output.join("");
+ };
+ /**
+ * Converts a Punycode string representing a domain name or an email address
+ * to Unicode. Only the Punycoded parts of the input will be converted, i.e.
+ * it doesn't matter if you call it on a string that has already been
+ * converted to Unicode.
+ * @memberOf punycode
+ * @param {String} input The Punycoded domain name or email address to
+ * convert to Unicode.
+ * @returns {String} The Unicode representation of the given Punycode
+ * string.
+ */ const toUnicode = function(input) {
+ return mapDomain(input, (function(string) {
+ return regexPunycode.test(string) ? decode(string.slice(4).toLowerCase()) : string;
+ }));
+ };
+ /**
+ * Converts a Unicode string representing a domain name or an email address to
+ * Punycode. Only the non-ASCII parts of the domain name will be converted,
+ * i.e. it doesn't matter if you call it with a domain that's already in
+ * ASCII.
+ * @memberOf punycode
+ * @param {String} input The domain name or email address to convert, as a
+ * Unicode string.
+ * @returns {String} The Punycode representation of the given domain name or
+ * email address.
+ */ const toASCII = function(input) {
+ return mapDomain(input, (function(string) {
+ return regexNonASCII.test(string) ? "xn--" + encode(string) : string;
+ }));
+ };
+ /*--------------------------------------------------------------------------*/
+ /** Define the public API */ const punycode = {
+ /**
+ * A string representing the current Punycode.js version number.
+ * @memberOf punycode
+ * @type String
+ */
+ version: "2.3.1",
+ /**
+ * An object of methods to convert from JavaScript's internal character
+ * representation (UCS-2) to Unicode code points, and back.
+ * @see <https://mathiasbynens.be/notes/javascript-encoding>
+ * @memberOf punycode
+ * @type Object
+ */
+ ucs2: {
+ decode: ucs2decode,
+ encode: ucs2encode
+ },
+ decode: decode,
+ encode: encode,
+ toASCII: toASCII,
+ toUnicode: toUnicode
+ };
+ // markdown-it default options
+ var cfg_default = {
+ options: {
+ // Enable HTML tags in source
+ html: false,
+ // Use '/' to close single tags (<br />)
+ xhtmlOut: false,
+ // Convert '\n' in paragraphs into <br>
+ breaks: false,
+ // CSS language prefix for fenced blocks
+ langPrefix: "language-",
+ // autoconvert URL-like texts to links
+ linkify: false,
+ // Enable some language-neutral replacements + quotes beautification
+ typographer: false,
+ // Double + single quotes replacement pairs, when typographer enabled,
+ // and smartquotes on. Could be either a String or an Array.
+ // For example, you can use '«»„“' for Russian, '„“‚‘' for German,
+ // and ['«\xA0', '\xA0»', '‹\xA0', '\xA0›'] for French (including nbsp).
+ quotes: "\u201c\u201d\u2018\u2019",
+ /* “”‘’ */
+ // Highlighter function. Should return escaped HTML,
+ // or '' if the source string is not changed and should be escaped externaly.
+ // If result starts with <pre... internal wrapper is skipped.
+ // function (/*str, lang*/) { return ''; }
+ highlight: null,
+ // Internal protection, recursion limit
+ maxNesting: 100
+ },
+ components: {
+ core: {},
+ block: {},
+ inline: {}
+ }
+ };
+ // "Zero" preset, with nothing enabled. Useful for manual configuring of simple
+ // modes. For example, to parse bold/italic only.
+ var cfg_zero = {
+ options: {
+ // Enable HTML tags in source
+ html: false,
+ // Use '/' to close single tags (<br />)
+ xhtmlOut: false,
+ // Convert '\n' in paragraphs into <br>
+ breaks: false,
+ // CSS language prefix for fenced blocks
+ langPrefix: "language-",
+ // autoconvert URL-like texts to links
+ linkify: false,
+ // Enable some language-neutral replacements + quotes beautification
+ typographer: false,
+ // Double + single quotes replacement pairs, when typographer enabled,
+ // and smartquotes on. Could be either a String or an Array.
+ // For example, you can use '«»„“' for Russian, '„“‚‘' for German,
+ // and ['«\xA0', '\xA0»', '‹\xA0', '\xA0›'] for French (including nbsp).
+ quotes: "\u201c\u201d\u2018\u2019",
+ /* “”‘’ */
+ // Highlighter function. Should return escaped HTML,
+ // or '' if the source string is not changed and should be escaped externaly.
+ // If result starts with <pre... internal wrapper is skipped.
+ // function (/*str, lang*/) { return ''; }
+ highlight: null,
+ // Internal protection, recursion limit
+ maxNesting: 20
+ },
+ components: {
+ core: {
+ rules: [ "normalize", "block", "inline", "text_join" ]
+ },
+ block: {
+ rules: [ "paragraph" ]
+ },
+ inline: {
+ rules: [ "text" ],
+ rules2: [ "balance_pairs", "fragments_join" ]
+ }
+ }
+ };
+ // Commonmark default options
+ var cfg_commonmark = {
+ options: {
+ // Enable HTML tags in source
+ html: true,
+ // Use '/' to close single tags (<br />)
+ xhtmlOut: true,
+ // Convert '\n' in paragraphs into <br>
+ breaks: false,
+ // CSS language prefix for fenced blocks
+ langPrefix: "language-",
+ // autoconvert URL-like texts to links
+ linkify: false,
+ // Enable some language-neutral replacements + quotes beautification
+ typographer: false,
+ // Double + single quotes replacement pairs, when typographer enabled,
+ // and smartquotes on. Could be either a String or an Array.
+ // For example, you can use '«»„“' for Russian, '„“‚‘' for German,
+ // and ['«\xA0', '\xA0»', '‹\xA0', '\xA0›'] for French (including nbsp).
+ quotes: "\u201c\u201d\u2018\u2019",
+ /* “”‘’ */
+ // Highlighter function. Should return escaped HTML,
+ // or '' if the source string is not changed and should be escaped externaly.
+ // If result starts with <pre... internal wrapper is skipped.
+ // function (/*str, lang*/) { return ''; }
+ highlight: null,
+ // Internal protection, recursion limit
+ maxNesting: 20
+ },
+ components: {
+ core: {
+ rules: [ "normalize", "block", "inline", "text_join" ]
+ },
+ block: {
+ rules: [ "blockquote", "code", "fence", "heading", "hr", "html_block", "lheading", "list", "reference", "paragraph" ]
+ },
+ inline: {
+ rules: [ "autolink", "backticks", "emphasis", "entity", "escape", "html_inline", "image", "link", "newline", "text" ],
+ rules2: [ "balance_pairs", "emphasis", "fragments_join" ]
+ }
+ }
+ };
+ // Main parser class
+ const config = {
+ default: cfg_default,
+ zero: cfg_zero,
+ commonmark: cfg_commonmark
+ };
+
+ // This validator can prohibit more than really needed to prevent XSS. It's a
+ // tradeoff to keep code simple and to be secure by default.
+
+ // If you need different setup - override validator method as you wish. Or
+ // replace it with dummy function and use external sanitizer.
+
+ const BAD_PROTO_RE = /^(vbscript|javascript|file|data):/;
+ const GOOD_DATA_RE = /^data:image\/(gif|png|jpeg|webp);/;
+ function validateLink(url) {
+ // url should be normalized at this point, and existing entities are decoded
+ const str = url.trim().toLowerCase();
+ return BAD_PROTO_RE.test(str) ? GOOD_DATA_RE.test(str) : true;
+ }
+ const RECODE_HOSTNAME_FOR = [ "http:", "https:", "mailto:" ];
+ function normalizeLink(url) {
+ const parsed = urlParse(url, true);
+ if (parsed.hostname) {
+ // Encode hostnames in urls like:
+ // `http://host/`, `https://host/`, `mailto:user@host`, `//host/`
+ // We don't encode unknown schemas, because it's likely that we encode
+ // something we shouldn't (e.g. `skype:name` treated as `skype:host`)
+ if (!parsed.protocol || RECODE_HOSTNAME_FOR.indexOf(parsed.protocol) >= 0) {
+ try {
+ parsed.hostname = punycode.toASCII(parsed.hostname);
+ } catch (er) {}
+ }
+ }
+ return encode$1(format(parsed));
+ }
+ function normalizeLinkText(url) {
+ const parsed = urlParse(url, true);
+ if (parsed.hostname) {
+ // Encode hostnames in urls like:
+ // `http://host/`, `https://host/`, `mailto:user@host`, `//host/`
+ // We don't encode unknown schemas, because it's likely that we encode
+ // something we shouldn't (e.g. `skype:name` treated as `skype:host`)
+ if (!parsed.protocol || RECODE_HOSTNAME_FOR.indexOf(parsed.protocol) >= 0) {
+ try {
+ parsed.hostname = punycode.toUnicode(parsed.hostname);
+ } catch (er) {}
+ }
+ }
+ // add '%' to exclude list because of https://github.com/markdown-it/markdown-it/issues/720
+ return decode$1(format(parsed), decode$1.defaultChars + "%");
+ }
+ /**
+ * class MarkdownIt
+ *
+ * Main parser/renderer class.
+ *
+ * ##### Usage
+ *
+ * ```javascript
+ * // node.js, "classic" way:
+ * var MarkdownIt = require('markdown-it'),
+ * md = new MarkdownIt();
+ * var result = md.render('# markdown-it rulezz!');
+ *
+ * // node.js, the same, but with sugar:
+ * var md = require('markdown-it')();
+ * var result = md.render('# markdown-it rulezz!');
+ *
+ * // browser without AMD, added to "window" on script load
+ * // Note, there are no dash.
+ * var md = window.markdownit();
+ * var result = md.render('# markdown-it rulezz!');
+ * ```
+ *
+ * Single line rendering, without paragraph wrap:
+ *
+ * ```javascript
+ * var md = require('markdown-it')();
+ * var result = md.renderInline('__markdown-it__ rulezz!');
+ * ```
+ **/
+ /**
+ * new MarkdownIt([presetName, options])
+ * - presetName (String): optional, `commonmark` / `zero`
+ * - options (Object)
+ *
+ * Creates parser instanse with given config. Can be called without `new`.
+ *
+ * ##### presetName
+ *
+ * MarkdownIt provides named presets as a convenience to quickly
+ * enable/disable active syntax rules and options for common use cases.
+ *
+ * - ["commonmark"](https://github.com/markdown-it/markdown-it/blob/master/lib/presets/commonmark.mjs) -
+ * configures parser to strict [CommonMark](http://commonmark.org/) mode.
+ * - [default](https://github.com/markdown-it/markdown-it/blob/master/lib/presets/default.mjs) -
+ * similar to GFM, used when no preset name given. Enables all available rules,
+ * but still without html, typographer & autolinker.
+ * - ["zero"](https://github.com/markdown-it/markdown-it/blob/master/lib/presets/zero.mjs) -
+ * all rules disabled. Useful to quickly setup your config via `.enable()`.
+ * For example, when you need only `bold` and `italic` markup and nothing else.
+ *
+ * ##### options:
+ *
+ * - __html__ - `false`. Set `true` to enable HTML tags in source. Be careful!
+ * That's not safe! You may need external sanitizer to protect output from XSS.
+ * It's better to extend features via plugins, instead of enabling HTML.
+ * - __xhtmlOut__ - `false`. Set `true` to add '/' when closing single tags
+ * (`<br />`). This is needed only for full CommonMark compatibility. In real
+ * world you will need HTML output.
+ * - __breaks__ - `false`. Set `true` to convert `\n` in paragraphs into `<br>`.
+ * - __langPrefix__ - `language-`. CSS language class prefix for fenced blocks.
+ * Can be useful for external highlighters.
+ * - __linkify__ - `false`. Set `true` to autoconvert URL-like text to links.
+ * - __typographer__ - `false`. Set `true` to enable [some language-neutral
+ * replacement](https://github.com/markdown-it/markdown-it/blob/master/lib/rules_core/replacements.mjs) +
+ * quotes beautification (smartquotes).
+ * - __quotes__ - `“”‘’`, String or Array. Double + single quotes replacement
+ * pairs, when typographer enabled and smartquotes on. For example, you can
+ * use `'«»„“'` for Russian, `'„“‚‘'` for German, and
+ * `['«\xA0', '\xA0»', '‹\xA0', '\xA0›']` for French (including nbsp).
+ * - __highlight__ - `null`. Highlighter function for fenced code blocks.
+ * Highlighter `function (str, lang)` should return escaped HTML. It can also
+ * return empty string if the source was not changed and should be escaped
+ * externaly. If result starts with <pre... internal wrapper is skipped.
+ *
+ * ##### Example
+ *
+ * ```javascript
+ * // commonmark mode
+ * var md = require('markdown-it')('commonmark');
+ *
+ * // default mode
+ * var md = require('markdown-it')();
+ *
+ * // enable everything
+ * var md = require('markdown-it')({
+ * html: true,
+ * linkify: true,
+ * typographer: true
+ * });
+ * ```
+ *
+ * ##### Syntax highlighting
+ *
+ * ```js
+ * var hljs = require('highlight.js') // https://highlightjs.org/
+ *
+ * var md = require('markdown-it')({
+ * highlight: function (str, lang) {
+ * if (lang && hljs.getLanguage(lang)) {
+ * try {
+ * return hljs.highlight(str, { language: lang, ignoreIllegals: true }).value;
+ * } catch (__) {}
+ * }
+ *
+ * return ''; // use external default escaping
+ * }
+ * });
+ * ```
+ *
+ * Or with full wrapper override (if you need assign class to `<pre>` or `<code>`):
+ *
+ * ```javascript
+ * var hljs = require('highlight.js') // https://highlightjs.org/
+ *
+ * // Actual default values
+ * var md = require('markdown-it')({
+ * highlight: function (str, lang) {
+ * if (lang && hljs.getLanguage(lang)) {
+ * try {
+ * return '<pre><code class="hljs">' +
+ * hljs.highlight(str, { language: lang, ignoreIllegals: true }).value +
+ * '</code></pre>';
+ * } catch (__) {}
+ * }
+ *
+ * return '<pre><code class="hljs">' + md.utils.escapeHtml(str) + '</code></pre>';
+ * }
+ * });
+ * ```
+ *
+ **/ function MarkdownIt(presetName, options) {
+ if (!(this instanceof MarkdownIt)) {
+ return new MarkdownIt(presetName, options);
+ }
+ if (!options) {
+ if (!isString$1(presetName)) {
+ options = presetName || {};
+ presetName = "default";
+ }
+ }
+ /**
+ * MarkdownIt#inline -> ParserInline
+ *
+ * Instance of [[ParserInline]]. You may need it to add new rules when
+ * writing plugins. For simple rules control use [[MarkdownIt.disable]] and
+ * [[MarkdownIt.enable]].
+ **/ this.inline = new ParserInline;
+ /**
+ * MarkdownIt#block -> ParserBlock
+ *
+ * Instance of [[ParserBlock]]. You may need it to add new rules when
+ * writing plugins. For simple rules control use [[MarkdownIt.disable]] and
+ * [[MarkdownIt.enable]].
+ **/ this.block = new ParserBlock;
+ /**
+ * MarkdownIt#core -> Core
+ *
+ * Instance of [[Core]] chain executor. You may need it to add new rules when
+ * writing plugins. For simple rules control use [[MarkdownIt.disable]] and
+ * [[MarkdownIt.enable]].
+ **/ this.core = new Core;
+ /**
+ * MarkdownIt#renderer -> Renderer
+ *
+ * Instance of [[Renderer]]. Use it to modify output look. Or to add rendering
+ * rules for new token types, generated by plugins.
+ *
+ * ##### Example
+ *
+ * ```javascript
+ * var md = require('markdown-it')();
+ *
+ * function myToken(tokens, idx, options, env, self) {
+ * //...
+ * return result;
+ * };
+ *
+ * md.renderer.rules['my_token'] = myToken
+ * ```
+ *
+ * See [[Renderer]] docs and [source code](https://github.com/markdown-it/markdown-it/blob/master/lib/renderer.mjs).
+ **/ this.renderer = new Renderer;
+ /**
+ * MarkdownIt#linkify -> LinkifyIt
+ *
+ * [linkify-it](https://github.com/markdown-it/linkify-it) instance.
+ * Used by [linkify](https://github.com/markdown-it/markdown-it/blob/master/lib/rules_core/linkify.mjs)
+ * rule.
+ **/ this.linkify = new LinkifyIt;
+ /**
+ * MarkdownIt#validateLink(url) -> Boolean
+ *
+ * Link validation function. CommonMark allows too much in links. By default
+ * we disable `javascript:`, `vbscript:`, `file:` schemas, and almost all `data:...` schemas
+ * except some embedded image types.
+ *
+ * You can change this behaviour:
+ *
+ * ```javascript
+ * var md = require('markdown-it')();
+ * // enable everything
+ * md.validateLink = function () { return true; }
+ * ```
+ **/ this.validateLink = validateLink;
+ /**
+ * MarkdownIt#normalizeLink(url) -> String
+ *
+ * Function used to encode link url to a machine-readable format,
+ * which includes url-encoding, punycode, etc.
+ **/ this.normalizeLink = normalizeLink;
+ /**
+ * MarkdownIt#normalizeLinkText(url) -> String
+ *
+ * Function used to decode link url to a human-readable format`
+ **/ this.normalizeLinkText = normalizeLinkText;
+ // Expose utils & helpers for easy acces from plugins
+ /**
+ * MarkdownIt#utils -> utils
+ *
+ * Assorted utility functions, useful to write plugins. See details
+ * [here](https://github.com/markdown-it/markdown-it/blob/master/lib/common/utils.mjs).
+ **/ this.utils = utils;
+ /**
+ * MarkdownIt#helpers -> helpers
+ *
+ * Link components parser functions, useful to write plugins. See details
+ * [here](https://github.com/markdown-it/markdown-it/blob/master/lib/helpers).
+ **/ this.helpers = assign$1({}, helpers);
+ this.options = {};
+ this.configure(presetName);
+ if (options) {
+ this.set(options);
+ }
+ }
+ /** chainable
+ * MarkdownIt.set(options)
+ *
+ * Set parser options (in the same format as in constructor). Probably, you
+ * will never need it, but you can change options after constructor call.
+ *
+ * ##### Example
+ *
+ * ```javascript
+ * var md = require('markdown-it')()
+ * .set({ html: true, breaks: true })
+ * .set({ typographer, true });
+ * ```
+ *
+ * __Note:__ To achieve the best possible performance, don't modify a
+ * `markdown-it` instance options on the fly. If you need multiple configurations
+ * it's best to create multiple instances and initialize each with separate
+ * config.
+ **/ MarkdownIt.prototype.set = function(options) {
+ assign$1(this.options, options);
+ return this;
+ };
+ /** chainable, internal
+ * MarkdownIt.configure(presets)
+ *
+ * Batch load of all options and compenent settings. This is internal method,
+ * and you probably will not need it. But if you will - see available presets
+ * and data structure [here](https://github.com/markdown-it/markdown-it/tree/master/lib/presets)
+ *
+ * We strongly recommend to use presets instead of direct config loads. That
+ * will give better compatibility with next versions.
+ **/ MarkdownIt.prototype.configure = function(presets) {
+ const self = this;
+ if (isString$1(presets)) {
+ const presetName = presets;
+ presets = config[presetName];
+ if (!presets) {
+ throw new Error('Wrong `markdown-it` preset "' + presetName + '", check name');
+ }
+ }
+ if (!presets) {
+ throw new Error("Wrong `markdown-it` preset, can't be empty");
+ }
+ if (presets.options) {
+ self.set(presets.options);
+ }
+ if (presets.components) {
+ Object.keys(presets.components).forEach((function(name) {
+ if (presets.components[name].rules) {
+ self[name].ruler.enableOnly(presets.components[name].rules);
+ }
+ if (presets.components[name].rules2) {
+ self[name].ruler2.enableOnly(presets.components[name].rules2);
+ }
+ }));
+ }
+ return this;
+ };
+ /** chainable
+ * MarkdownIt.enable(list, ignoreInvalid)
+ * - list (String|Array): rule name or list of rule names to enable
+ * - ignoreInvalid (Boolean): set `true` to ignore errors when rule not found.
+ *
+ * Enable list or rules. It will automatically find appropriate components,
+ * containing rules with given names. If rule not found, and `ignoreInvalid`
+ * not set - throws exception.
+ *
+ * ##### Example
+ *
+ * ```javascript
+ * var md = require('markdown-it')()
+ * .enable(['sub', 'sup'])
+ * .disable('smartquotes');
+ * ```
+ **/ MarkdownIt.prototype.enable = function(list, ignoreInvalid) {
+ let result = [];
+ if (!Array.isArray(list)) {
+ list = [ list ];
+ }
+ [ "core", "block", "inline" ].forEach((function(chain) {
+ result = result.concat(this[chain].ruler.enable(list, true));
+ }), this);
+ result = result.concat(this.inline.ruler2.enable(list, true));
+ const missed = list.filter((function(name) {
+ return result.indexOf(name) < 0;
+ }));
+ if (missed.length && !ignoreInvalid) {
+ throw new Error("MarkdownIt. Failed to enable unknown rule(s): " + missed);
+ }
+ return this;
+ };
+ /** chainable
+ * MarkdownIt.disable(list, ignoreInvalid)
+ * - list (String|Array): rule name or list of rule names to disable.
+ * - ignoreInvalid (Boolean): set `true` to ignore errors when rule not found.
+ *
+ * The same as [[MarkdownIt.enable]], but turn specified rules off.
+ **/ MarkdownIt.prototype.disable = function(list, ignoreInvalid) {
+ let result = [];
+ if (!Array.isArray(list)) {
+ list = [ list ];
+ }
+ [ "core", "block", "inline" ].forEach((function(chain) {
+ result = result.concat(this[chain].ruler.disable(list, true));
+ }), this);
+ result = result.concat(this.inline.ruler2.disable(list, true));
+ const missed = list.filter((function(name) {
+ return result.indexOf(name) < 0;
+ }));
+ if (missed.length && !ignoreInvalid) {
+ throw new Error("MarkdownIt. Failed to disable unknown rule(s): " + missed);
+ }
+ return this;
+ };
+ /** chainable
+ * MarkdownIt.use(plugin, params)
+ *
+ * Load specified plugin with given params into current parser instance.
+ * It's just a sugar to call `plugin(md, params)` with curring.
+ *
+ * ##### Example
+ *
+ * ```javascript
+ * var iterator = require('markdown-it-for-inline');
+ * var md = require('markdown-it')()
+ * .use(iterator, 'foo_replace', 'text', function (tokens, idx) {
+ * tokens[idx].content = tokens[idx].content.replace(/foo/g, 'bar');
+ * });
+ * ```
+ **/ MarkdownIt.prototype.use = function(plugin /*, params, ... */) {
+ const args = [ this ].concat(Array.prototype.slice.call(arguments, 1));
+ plugin.apply(plugin, args);
+ return this;
+ };
+ /** internal
+ * MarkdownIt.parse(src, env) -> Array
+ * - src (String): source string
+ * - env (Object): environment sandbox
+ *
+ * Parse input string and return list of block tokens (special token type
+ * "inline" will contain list of inline tokens). You should not call this
+ * method directly, until you write custom renderer (for example, to produce
+ * AST).
+ *
+ * `env` is used to pass data between "distributed" rules and return additional
+ * metadata like reference info, needed for the renderer. It also can be used to
+ * inject data in specific cases. Usually, you will be ok to pass `{}`,
+ * and then pass updated object to renderer.
+ **/ MarkdownIt.prototype.parse = function(src, env) {
+ if (typeof src !== "string") {
+ throw new Error("Input data should be a String");
+ }
+ const state = new this.core.State(src, this, env);
+ this.core.process(state);
+ return state.tokens;
+ };
+ /**
+ * MarkdownIt.render(src [, env]) -> String
+ * - src (String): source string
+ * - env (Object): environment sandbox
+ *
+ * Render markdown string into html. It does all magic for you :).
+ *
+ * `env` can be used to inject additional metadata (`{}` by default).
+ * But you will not need it with high probability. See also comment
+ * in [[MarkdownIt.parse]].
+ **/ MarkdownIt.prototype.render = function(src, env) {
+ env = env || {};
+ return this.renderer.render(this.parse(src, env), this.options, env);
+ };
+ /** internal
+ * MarkdownIt.parseInline(src, env) -> Array
+ * - src (String): source string
+ * - env (Object): environment sandbox
+ *
+ * The same as [[MarkdownIt.parse]] but skip all block rules. It returns the
+ * block tokens list with the single `inline` element, containing parsed inline
+ * tokens in `children` property. Also updates `env` object.
+ **/ MarkdownIt.prototype.parseInline = function(src, env) {
+ const state = new this.core.State(src, this, env);
+ state.inlineMode = true;
+ this.core.process(state);
+ return state.tokens;
+ };
+ /**
+ * MarkdownIt.renderInline(src [, env]) -> String
+ * - src (String): source string
+ * - env (Object): environment sandbox
+ *
+ * Similar to [[MarkdownIt.render]] but for single paragraph content. Result
+ * will NOT be wrapped into `<p>` tags.
+ **/ MarkdownIt.prototype.renderInline = function(src, env) {
+ env = env || {};
+ return this.renderer.render(this.parseInline(src, env), this.options, env);
+ };
+ return MarkdownIt;
+}));
diff --git a/packages/markdown-it-14.1.0/dist/markdown-it.min.js b/packages/markdown-it-14.1.0/dist/markdown-it.min.js
new file mode 100644
index 0000000..5e6f256
--- /dev/null
+++ b/packages/markdown-it-14.1.0/dist/markdown-it.min.js
@@ -0,0 +1,2 @@
+/*! markdown-it 14.1.0 https://github.com/markdown-it/markdown-it @license MIT */
+!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):(t="undefined"!=typeof globalThis?globalThis:t||self).markdownit=e()}(this,(function(){"use strict";const t={};function e(r,n){"string"!=typeof n&&(n=e.defaultChars);const s=function(e){let r=t[e];if(r)return r;r=t[e]=[];for(let t=0;t<128;t++){const e=String.fromCharCode(t);r.push(e)}for(let t=0;t<e.length;t++){const n=e.charCodeAt(t);r[n]="%"+("0"+n.toString(16).toUpperCase()).slice(-2)}return r}(n);return r.replace(/(%[a-f0-9]{2})+/gi,(function(t){let e="";for(let r=0,n=t.length;r<n;r+=3){const i=parseInt(t.slice(r+1,r+3),16);if(i<128)e+=s[i];else{if(192==(224&i)&&r+3<n){const n=parseInt(t.slice(r+4,r+6),16);if(128==(192&n)){const t=i<<6&1984|63&n;e+=t<128?"\ufffd\ufffd":String.fromCharCode(t),r+=3;continue}}if(224==(240&i)&&r+6<n){const n=parseInt(t.slice(r+4,r+6),16),s=parseInt(t.slice(r+7,r+9),16);if(128==(192&n)&&128==(192&s)){const 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Uint16Array("\u0200aglq\t\x15\x18\x1b\u026d\x0f\0\0\x12p;\u4026os;\u4027t;\u403et;\u403cuot;\u4022".split("").map((t=>t.charCodeAt(0))));const v=new Map([[0,65533],[128,8364],[130,8218],[131,402],[132,8222],[133,8230],[134,8224],[135,8225],[136,710],[137,8240],[138,352],[139,8249],[140,338],[142,381],[145,8216],[146,8217],[147,8220],[148,8221],[149,8226],[150,8211],[151,8212],[152,732],[153,8482],[154,353],[155,8250],[156,339],[158,382],[159,376]]),z=null!==(k=String.fromCodePoint)&&void 0!==k?k:function(t){let e="";return t>65535&&(t-=65536,e+=String.fromCharCode(t>>>10&1023|55296),t=56320|1023&t),e+=String.fromCharCode(t),e};var S;!function(t){t[t.NUM=35]="NUM",t[t.SEMI=59]="SEMI",t[t.EQUALS=61]="EQUALS",t[t.ZERO=48]="ZERO",t[t.NINE=57]="NINE",t[t.LOWER_A=97]="LOWER_A",t[t.LOWER_F=102]="LOWER_F",t[t.LOWER_X=120]="LOWER_X",t[t.LOWER_Z=122]="LOWER_Z",t[t.UPPER_A=65]="UPPER_A",t[t.UPPER_F=70]="UPPER_F",t[t.UPPER_Z=90]="UPPER_Z"}(S||(S={}));var q,B,L;function I(t){return t>=S.ZERO&&t<=S.NINE}function M(t){return t>=S.UPPER_A&&t<=S.UPPER_F||t>=S.LOWER_A&&t<=S.LOWER_F}function T(t){return t===S.EQUALS||function(t){return t>=S.UPPER_A&&t<=S.UPPER_Z||t>=S.LOWER_A&&t<=S.LOWER_Z||I(t)}(t)}!function(t){t[t.VALUE_LENGTH=49152]="VALUE_LENGTH",t[t.BRANCH_LENGTH=16256]="BRANCH_LENGTH",t[t.JUMP_TABLE=127]="JUMP_TABLE"}(q||(q={})),function(t){t[t.EntityStart=0]="EntityStart",t[t.NumericStart=1]="NumericStart",t[t.NumericDecimal=2]="NumericDecimal",t[t.NumericHex=3]="NumericHex",t[t.NamedEntity=4]="NamedEntity"}(B||(B={})),function(t){t[t.Legacy=0]="Legacy",t[t.Strict=1]="Strict",t[t.Attribute=2]="Attribute"}(L||(L={}));class R{constructor(t,e,r){this.decodeTree=t,this.emitCodePoint=e,this.errors=r,this.state=B.EntityStart,this.consumed=1,this.result=0,this.treeIndex=0,this.excess=1,this.decodeMode=L.Strict}startEntity(t){this.decodeMode=t,this.state=B.EntityStart,this.result=0,this.treeIndex=0,this.excess=1,this.consumed=1}write(t,e){switch(this.state){case B.EntityStart:return t.charCodeAt(e)===S.NUM?(this.state=B.NumericStart,this.consumed+=1,this.stateNumericStart(t,e+1)):(this.state=B.NamedEntity,this.stateNamedEntity(t,e));case B.NumericStart:return this.stateNumericStart(t,e);case B.NumericDecimal:return this.stateNumericDecimal(t,e);case B.NumericHex:return this.stateNumericHex(t,e);case B.NamedEntity:return this.stateNamedEntity(t,e)}}stateNumericStart(t,e){return e>=t.length?-1:(32|t.charCodeAt(e))===S.LOWER_X?(this.state=B.NumericHex,this.consumed+=1,this.stateNumericHex(t,e+1)):(this.state=B.NumericDecimal,this.stateNumericDecimal(t,e))}addToNumericResult(t,e,r,n){if(e!==r){const s=r-e;this.result=this.result*Math.pow(n,s)+parseInt(t.substr(e,s),n),this.consumed+=s}}stateNumericHex(t,e){const r=e;for(;e<t.length;){const n=t.charCodeAt(e);if(!I(n)&&!M(n))return this.addToNumericResult(t,r,e,16),this.emitNumericEntity(n,3);e+=1}return this.addToNumericResult(t,r,e,16),-1}stateNumericDecimal(t,e){const r=e;for(;e<t.length;){const n=t.charCodeAt(e);if(!I(n))return this.addToNumericResult(t,r,e,10),this.emitNumericEntity(n,2);e+=1}return this.addToNumericResult(t,r,e,10),-1}emitNumericEntity(t,e){var r;if(this.consumed<=e)return null===(r=this.errors)||void 0===r||r.absenceOfDigitsInNumericCharacterReference(this.consumed),0;if(t===S.SEMI)this.consumed+=1;else if(this.decodeMode===L.Strict)return 0;return this.emitCodePoint(function(t){var e;return t>=55296&&t<=57343||t>1114111?65533:null!==(e=v.get(t))&&void 0!==e?e:t}(this.result),this.consumed),this.errors&&(t!==S.SEMI&&this.errors.missingSemicolonAfterCharacterReference(),this.errors.validateNumericCharacterReference(this.result)),this.consumed}stateNamedEntity(t,e){const{decodeTree:r}=this;let n=r[this.treeIndex],s=(n&q.VALUE_LENGTH)>>14;for(;e<t.length;e++,this.excess++){const i=t.charCodeAt(e);if(this.treeIndex=P(r,n,this.treeIndex+Math.max(1,s),i),this.treeIndex<0)return 0===this.result||this.decodeMode===L.Attribute&&(0===s||T(i))?0:this.emitNotTerminatedNamedEntity();if(n=r[this.treeIndex],s=(n&q.VALUE_LENGTH)>>14,0!==s){if(i===S.SEMI)return this.emitNamedEntityData(this.treeIndex,s,this.consumed+this.excess);this.decodeMode!==L.Strict&&(this.result=this.treeIndex,this.consumed+=this.excess,this.excess=0)}}return-1}emitNotTerminatedNamedEntity(){var t;const{result:e,decodeTree:r}=this,n=(r[e]&q.VALUE_LENGTH)>>14;return this.emitNamedEntityData(e,n,this.consumed),null===(t=this.errors)||void 0===t||t.missingSemicolonAfterCharacterReference(),this.consumed}emitNamedEntityData(t,e,r){const{decodeTree:n}=this;return this.emitCodePoint(1===e?n[t]&~q.VALUE_LENGTH:n[t+1],r),3===e&&this.emitCodePoint(n[t+2],r),r}end(){var t;switch(this.state){case B.NamedEntity:return 0===this.result||this.decodeMode===L.Attribute&&this.result!==this.treeIndex?0:this.emitNotTerminatedNamedEntity();case B.NumericDecimal:return this.emitNumericEntity(0,2);case 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It(t,e,r,n){this.src=t,this.md=e,this.env=r,this.tokens=n,this.bMarks=[],this.eMarks=[],this.tShift=[],this.sCount=[],this.bsCount=[],this.blkIndent=0,this.line=0,this.lineMax=0,this.tight=!1,this.ddIndent=-1,this.listIndent=-1,this.parentType="root",this.level=0;const s=this.src;for(let t=0,e=0,r=0,n=0,i=s.length,o=!1;e<i;e++){const u=s.charCodeAt(e);if(!o){if(st(u)){r++,9===u?n+=4-n%4:n++;continue}o=!0}10!==u&&e!==i-1||(10!==u&&e++,this.bMarks.push(t),this.eMarks.push(e),this.tShift.push(r),this.sCount.push(n),this.bsCount.push(0),o=!1,r=0,n=0,t=e+1)}this.bMarks.push(s.length),this.eMarks.push(s.length),this.tShift.push(0),this.sCount.push(0),this.bsCount.push(0),this.lineMax=this.bMarks.length-1}Lt.prototype.process=function(t){const e=this.ruler.getRules("");for(let r=0,n=e.length;r<n;r++)e[r](t)},Lt.prototype.State=mt,It.prototype.push=function(t,e,r){const n=new _t(t,e,r);return n.block=!0,r<0&&this.level--,n.level=this.level,r>0&&this.level++,this.tokens.push(n),n},It.prototype.isEmpty=function(t){return this.bMarks[t]+this.tShift[t]>=this.eMarks[t]},It.prototype.skipEmptyLines=function(t){for(let e=this.lineMax;t<e&&!(this.bMarks[t]+this.tShift[t]<this.eMarks[t]);t++);return t},It.prototype.skipSpaces=function(t){for(let e=this.src.length;t<e;t++){if(!st(this.src.charCodeAt(t)))break}return t},It.prototype.skipSpacesBack=function(t,e){if(t<=e)return t;for(;t>e;)if(!st(this.src.charCodeAt(--t)))return t+1;return t},It.prototype.skipChars=function(t,e){for(let r=this.src.length;t<r&&this.src.charCodeAt(t)===e;t++);return t},It.prototype.skipCharsBack=function(t,e,r){if(t<=r)return t;for(;t>r;)if(e!==this.src.charCodeAt(--t))return t+1;return t},It.prototype.getLines=function(t,e,r,n){if(t>=e)return"";const s=new Array(e-t);for(let i=0,o=t;o<e;o++,i++){let t=0;const u=this.bMarks[o];let c,a=u;for(c=o+1<e||n?this.eMarks[o]+1:this.eMarks[o];a<c&&t<r;){const e=this.src.charCodeAt(a);if(st(e))9===e?t+=4-(t+this.bsCount[o])%4:t++;else{if(!(a-u<this.tShift[o]))break;t++}a++}s[i]=t>r?new Array(t-r+1).join(" ")+this.src.slice(a,c):this.src.slice(a,c)}return s.join("")},It.prototype.Token=_t;function Mt(t,e){const r=t.bMarks[e]+t.tShift[e],n=t.eMarks[e];return t.src.slice(r,n)}function Tt(t){const e=[],r=t.length;let n=0,s=t.charCodeAt(n),i=!1,o=0,u="";for(;n<r;)124===s&&(i?(u+=t.substring(o,n-1),o=n):(e.push(u+t.substring(o,n)),u="",o=n+1)),i=92===s,n++,s=t.charCodeAt(n);return e.push(u+t.substring(o)),e}function Rt(t,e){const r=t.eMarks[e];let n=t.bMarks[e]+t.tShift[e];const s=t.src.charCodeAt(n++);if(42!==s&&45!==s&&43!==s)return-1;if(n<r){if(!st(t.src.charCodeAt(n)))return-1}return n}function Nt(t,e){const r=t.bMarks[e]+t.tShift[e],n=t.eMarks[e];let s=r;if(s+1>=n)return-1;let i=t.src.charCodeAt(s++);if(i<48||i>57)return-1;for(;;){if(s>=n)return-1;if(i=t.src.charCodeAt(s++),!(i>=48&&i<=57)){if(41===i||46===i)break;return-1}if(s-r>=10)return-1}return s<n&&(i=t.src.charCodeAt(s),!st(i))?-1:s}const Pt="<[A-Za-z][A-Za-z0-9\\-]*(?:\\s+[a-zA-Z_:][a-zA-Z0-9:._-]*(?:\\s*=\\s*(?:[^\"'=<>`\\x00-\\x20]+|'[^']*'|\"[^\"]*\"))?)*\\s*\\/?>",Ot="<\\/[A-Za-z][A-Za-z0-9\\-]*\\s*>",jt=new RegExp("^(?:"+Pt+"|"+Ot+"|\x3c!---?>|\x3c!--(?:[^-]|-[^-]|--[^>])*--\x3e|<[?][\\s\\S]*?[?]>|<![A-Za-z][^>]*>|<!\\[CDATA\\[[\\s\\S]*?\\]\\]>)"),Zt=new RegExp("^(?:"+Pt+"|"+Ot+")"),$t=[[/^<(script|pre|style|textarea)(?=(\s|>|$))/i,/<\/(script|pre|style|textarea)>/i,!0],[/^<!--/,/-->/,!0],[/^<\?/,/\?>/,!0],[/^<![A-Z]/,/>/,!0],[/^<!\[CDATA\[/,/\]\]>/,!0],[new RegExp("^</?("+["address","article","aside","base","basefont","blockquote","body","caption","center","col","colgroup","dd","details","dialog","dir","div","dl","dt","fieldset","figcaption","figure","footer","form","frame","frameset","h1","h2","h3","h4","h5","h6","head","header","hr","html","iframe","legend","li","link","main","menu","menuitem","nav","noframes","ol","optgroup","option","p","param","search","section","summary","table","tbody","td","tfoot","th","thead","title","tr","track","ul"].join("|")+")(?=(\\s|/?>|$))","i"),/^$/,!0],[new RegExp(Zt.source+"\\s*$"),/^$/,!1]];const Ut=[["table",function(t,e,r,n){if(e+2>r)return!1;let s=e+1;if(t.sCount[s]<t.blkIndent)return!1;if(t.sCount[s]-t.blkIndent>=4)return!1;let i=t.bMarks[s]+t.tShift[s];if(i>=t.eMarks[s])return!1;const o=t.src.charCodeAt(i++);if(124!==o&&45!==o&&58!==o)return!1;if(i>=t.eMarks[s])return!1;const u=t.src.charCodeAt(i++);if(124!==u&&45!==u&&58!==u&&!st(u))return!1;if(45===o&&st(u))return!1;for(;i<t.eMarks[s];){const e=t.src.charCodeAt(i);if(124!==e&&45!==e&&58!==e&&!st(e))return!1;i++}let c=Mt(t,e+1),a=c.split("|");const l=[];for(let t=0;t<a.length;t++){const e=a[t].trim();if(!e){if(0===t||t===a.length-1)continue;return!1}if(!/^:?-+:?$/.test(e))return!1;58===e.charCodeAt(e.length-1)?l.push(58===e.charCodeAt(0)?"center":"right"):58===e.charCodeAt(0)?l.push("left"):l.push("")}if(c=Mt(t,e).trim(),-1===c.indexOf("|"))return!1;if(t.sCount[e]-t.blkIndent>=4)return!1;a=Tt(c),a.length&&""===a[0]&&a.shift(),a.length&&""===a[a.length-1]&&a.pop();const h=a.length;if(0===h||h!==l.length)return!1;if(n)return!0;const p=t.parentType;t.parentType="table";const f=t.md.block.ruler.getRules("blockquote"),d=[e,0];t.push("table_open","table",1).map=d,t.push("thead_open","thead",1).map=[e,e+1],t.push("tr_open","tr",1).map=[e,e+1];for(let e=0;e<a.length;e++){const r=t.push("th_open","th",1);l[e]&&(r.attrs=[["style","text-align:"+l[e]]]);const n=t.push("inline","",0);n.content=a[e].trim(),n.children=[],t.push("th_close","th",-1)}let _;t.push("tr_close","tr",-1),t.push("thead_close","thead",-1);let m=0;for(s=e+2;s<r&&!(t.sCount[s]<t.blkIndent);s++){let n=!1;for(let e=0,i=f.length;e<i;e++)if(f[e](t,s,r,!0)){n=!0;break}if(n)break;if(c=Mt(t,s).trim(),!c)break;if(t.sCount[s]-t.blkIndent>=4)break;if(a=Tt(c),a.length&&""===a[0]&&a.shift(),a.length&&""===a[a.length-1]&&a.pop(),m+=h-a.length,m>65536)break;if(s===e+2){t.push("tbody_open","tbody",1).map=_=[e+2,0]}t.push("tr_open","tr",1).map=[s,s+1];for(let e=0;e<h;e++){const r=t.push("td_open","td",1);l[e]&&(r.attrs=[["style","text-align:"+l[e]]]);const n=t.push("inline","",0);n.content=a[e]?a[e].trim():"",n.children=[],t.push("td_close","td",-1)}t.push("tr_close","tr",-1)}return _&&(t.push("tbody_close","tbody",-1),_[1]=s),t.push("table_close","table",-1),d[1]=s,t.parentType=p,t.line=s,!0},["paragraph","reference"]],["code",function(t,e,r){if(t.sCount[e]-t.blkIndent<4)return!1;let n=e+1,s=n;for(;n<r;)if(t.isEmpty(n))n++;else{if(!(t.sCount[n]-t.blkIndent>=4))break;n++,s=n}t.line=s;const i=t.push("code_block","code",0);return i.content=t.getLines(e,s,4+t.blkIndent,!1)+"\n",i.map=[e,t.line],!0}],["fence",function(t,e,r,n){let s=t.bMarks[e]+t.tShift[e],i=t.eMarks[e];if(t.sCount[e]-t.blkIndent>=4)return!1;if(s+3>i)return!1;const o=t.src.charCodeAt(s);if(126!==o&&96!==o)return!1;let u=s;s=t.skipChars(s,o);let c=s-u;if(c<3)return!1;const a=t.src.slice(u,s),l=t.src.slice(s,i);if(96===o&&l.indexOf(String.fromCharCode(o))>=0)return!1;if(n)return!0;let h=e,p=!1;for(;(h++,!(h>=r))&&(s=u=t.bMarks[h]+t.tShift[h],i=t.eMarks[h],!(s<i&&t.sCount[h]<t.blkIndent));)if(t.src.charCodeAt(s)===o&&!(t.sCount[h]-t.blkIndent>=4||(s=t.skipChars(s,o),s-u<c||(s=t.skipSpaces(s),s<i)))){p=!0;break}c=t.sCount[e],t.line=h+(p?1:0);const f=t.push("fence","code",0);return f.info=l,f.content=t.getLines(e+1,h,c,!0),f.markup=a,f.map=[e,t.line],!0},["paragraph","reference","blockquote","list"]],["blockquote",function(t,e,r,n){let s=t.bMarks[e]+t.tShift[e],i=t.eMarks[e];const o=t.lineMax;if(t.sCount[e]-t.blkIndent>=4)return!1;if(62!==t.src.charCodeAt(s))return!1;if(n)return!0;const u=[],c=[],a=[],l=[],h=t.md.block.ruler.getRules("blockquote"),p=t.parentType;t.parentType="blockquote";let f,d=!1;for(f=e;f<r;f++){const e=t.sCount[f]<t.blkIndent;if(s=t.bMarks[f]+t.tShift[f],i=t.eMarks[f],s>=i)break;if(62===t.src.charCodeAt(s++)&&!e){let e,r,n=t.sCount[f]+1;32===t.src.charCodeAt(s)?(s++,n++,r=!1,e=!0):9===t.src.charCodeAt(s)?(e=!0,(t.bsCount[f]+n)%4==3?(s++,n++,r=!1):r=!0):e=!1;let o=n;for(u.push(t.bMarks[f]),t.bMarks[f]=s;s<i;){const e=t.src.charCodeAt(s);if(!st(e))break;9===e?o+=4-(o+t.bsCount[f]+(r?1:0))%4:o++,s++}d=s>=i,c.push(t.bsCount[f]),t.bsCount[f]=t.sCount[f]+1+(e?1:0),a.push(t.sCount[f]),t.sCount[f]=o-n,l.push(t.tShift[f]),t.tShift[f]=s-t.bMarks[f];continue}if(d)break;let n=!1;for(let e=0,s=h.length;e<s;e++)if(h[e](t,f,r,!0)){n=!0;break}if(n){t.lineMax=f,0!==t.blkIndent&&(u.push(t.bMarks[f]),c.push(t.bsCount[f]),l.push(t.tShift[f]),a.push(t.sCount[f]),t.sCount[f]-=t.blkIndent);break}u.push(t.bMarks[f]),c.push(t.bsCount[f]),l.push(t.tShift[f]),a.push(t.sCount[f]),t.sCount[f]=-1}const _=t.blkIndent;t.blkIndent=0;const m=t.push("blockquote_open","blockquote",1);m.markup=">";const g=[e,0];m.map=g,t.md.block.tokenize(t,e,f),t.push("blockquote_close","blockquote",-1).markup=">",t.lineMax=o,t.parentType=p,g[1]=t.line;for(let r=0;r<l.length;r++)t.bMarks[r+e]=u[r],t.tShift[r+e]=l[r],t.sCount[r+e]=a[r],t.bsCount[r+e]=c[r];return t.blkIndent=_,!0},["paragraph","reference","blockquote","list"]],["hr",function(t,e,r,n){const s=t.eMarks[e];if(t.sCount[e]-t.blkIndent>=4)return!1;let i=t.bMarks[e]+t.tShift[e];const o=t.src.charCodeAt(i++);if(42!==o&&45!==o&&95!==o)return!1;let u=1;for(;i<s;){const e=t.src.charCodeAt(i++);if(e!==o&&!st(e))return!1;e===o&&u++}if(u<3)return!1;if(n)return!0;t.line=e+1;const c=t.push("hr","hr",0);return c.map=[e,t.line],c.markup=Array(u+1).join(String.fromCharCode(o)),!0},["paragraph","reference","blockquote","list"]],["list",function(t,e,r,n){let s,i,o,u,c=e,a=!0;if(t.sCount[c]-t.blkIndent>=4)return!1;if(t.listIndent>=0&&t.sCount[c]-t.listIndent>=4&&t.sCount[c]<t.blkIndent)return!1;let l,h,p,f=!1;if(n&&"paragraph"===t.parentType&&t.sCount[c]>=t.blkIndent&&(f=!0),(p=Nt(t,c))>=0){if(l=!0,o=t.bMarks[c]+t.tShift[c],h=Number(t.src.slice(o,p-1)),f&&1!==h)return!1}else{if(!((p=Rt(t,c))>=0))return!1;l=!1}if(f&&t.skipSpaces(p)>=t.eMarks[c])return!1;if(n)return!0;const d=t.src.charCodeAt(p-1),_=t.tokens.length;l?(u=t.push("ordered_list_open","ol",1),1!==h&&(u.attrs=[["start",h]])):u=t.push("bullet_list_open","ul",1);const m=[c,0];u.map=m,u.markup=String.fromCharCode(d);let g=!1;const k=t.md.block.ruler.getRules("list"),D=t.parentType;for(t.parentType="list";c<r;){i=p,s=t.eMarks[c];const e=t.sCount[c]+p-(t.bMarks[c]+t.tShift[c]);let n=e;for(;i<s;){const e=t.src.charCodeAt(i);if(9===e)n+=4-(n+t.bsCount[c])%4;else{if(32!==e)break;n++}i++}const h=i;let f;f=h>=s?1:n-e,f>4&&(f=1);const _=e+f;u=t.push("list_item_open","li",1),u.markup=String.fromCharCode(d);const m=[c,0];u.map=m,l&&(u.info=t.src.slice(o,p-1));const D=t.tight,C=t.tShift[c],y=t.sCount[c],E=t.listIndent;if(t.listIndent=t.blkIndent,t.blkIndent=_,t.tight=!0,t.tShift[c]=h-t.bMarks[c],t.sCount[c]=n,h>=s&&t.isEmpty(c+1)?t.line=Math.min(t.line+2,r):t.md.block.tokenize(t,c,r,!0),t.tight&&!g||(a=!1),g=t.line-c>1&&t.isEmpty(t.line-1),t.blkIndent=t.listIndent,t.listIndent=E,t.tShift[c]=C,t.sCount[c]=y,t.tight=D,u=t.push("list_item_close","li",-1),u.markup=String.fromCharCode(d),c=t.line,m[1]=c,c>=r)break;if(t.sCount[c]<t.blkIndent)break;if(t.sCount[c]-t.blkIndent>=4)break;let A=!1;for(let e=0,n=k.length;e<n;e++)if(k[e](t,c,r,!0)){A=!0;break}if(A)break;if(l){if(p=Nt(t,c),p<0)break;o=t.bMarks[c]+t.tShift[c]}else if(p=Rt(t,c),p<0)break;if(d!==t.src.charCodeAt(p-1))break}return u=l?t.push("ordered_list_close","ol",-1):t.push("bullet_list_close","ul",-1),u.markup=String.fromCharCode(d),m[1]=c,t.line=c,t.parentType=D,a&&function(t,e){const r=t.level+2;for(let n=e+2,s=t.tokens.length-2;n<s;n++)t.tokens[n].level===r&&"paragraph_open"===t.tokens[n].type&&(t.tokens[n+2].hidden=!0,t.tokens[n].hidden=!0,n+=2)}(t,_),!0},["paragraph","reference","blockquote"]],["reference",function(t,e,r,n){let s=t.bMarks[e]+t.tShift[e],i=t.eMarks[e],o=e+1;if(t.sCount[e]-t.blkIndent>=4)return!1;if(91!==t.src.charCodeAt(s))return!1;function u(e){const r=t.lineMax;if(e>=r||t.isEmpty(e))return null;let n=!1;if(t.sCount[e]-t.blkIndent>3&&(n=!0),t.sCount[e]<0&&(n=!0),!n){const n=t.md.block.ruler.getRules("reference"),s=t.parentType;t.parentType="reference";let i=!1;for(let s=0,o=n.length;s<o;s++)if(n[s](t,e,r,!0)){i=!0;break}if(t.parentType=s,i)return null}const s=t.bMarks[e]+t.tShift[e],i=t.eMarks[e];return t.src.slice(s,i+1)}let c=t.src.slice(s,i+1);i=c.length;let a=-1;for(s=1;s<i;s++){const t=c.charCodeAt(s);if(91===t)return!1;if(93===t){a=s;break}if(10===t){const t=u(o);null!==t&&(c+=t,i=c.length,o++)}else if(92===t&&(s++,s<i&&10===c.charCodeAt(s))){const t=u(o);null!==t&&(c+=t,i=c.length,o++)}}if(a<0||58!==c.charCodeAt(a+1))return!1;for(s=a+2;s<i;s++){const t=c.charCodeAt(s);if(10===t){const t=u(o);null!==t&&(c+=t,i=c.length,o++)}else if(!st(t))break}const l=t.md.helpers.parseLinkDestination(c,s,i);if(!l.ok)return!1;const h=t.md.normalizeLink(l.str);if(!t.md.validateLink(h))return!1;s=l.pos;const p=s,f=o,d=s;for(;s<i;s++){const t=c.charCodeAt(s);if(10===t){const t=u(o);null!==t&&(c+=t,i=c.length,o++)}else if(!st(t))break}let _,m=t.md.helpers.parseLinkTitle(c,s,i);for(;m.can_continue;){const e=u(o);if(null===e)break;c+=e,s=i,i=c.length,o++,m=t.md.helpers.parseLinkTitle(c,s,i,m)}for(s<i&&d!==s&&m.ok?(_=m.str,s=m.pos):(_="",s=p,o=f);s<i;){if(!st(c.charCodeAt(s)))break;s++}if(s<i&&10!==c.charCodeAt(s)&&_)for(_="",s=p,o=f;s<i;){if(!st(c.charCodeAt(s)))break;s++}if(s<i&&10!==c.charCodeAt(s))return!1;const g=ct(c.slice(1,a));return!!g&&(n||(void 0===t.env.references&&(t.env.references={}),void 0===t.env.references[g]&&(t.env.references[g]={title:_,href:h}),t.line=o),!0)}],["html_block",function(t,e,r,n){let s=t.bMarks[e]+t.tShift[e],i=t.eMarks[e];if(t.sCount[e]-t.blkIndent>=4)return!1;if(!t.md.options.html)return!1;if(60!==t.src.charCodeAt(s))return!1;let o=t.src.slice(s,i),u=0;for(;u<$t.length&&!$t[u][0].test(o);u++);if(u===$t.length)return!1;if(n)return $t[u][2];let c=e+1;if(!$t[u][1].test(o))for(;c<r&&!(t.sCount[c]<t.blkIndent);c++)if(s=t.bMarks[c]+t.tShift[c],i=t.eMarks[c],o=t.src.slice(s,i),$t[u][1].test(o)){0!==o.length&&c++;break}t.line=c;const a=t.push("html_block","",0);return a.map=[e,c],a.content=t.getLines(e,c,t.blkIndent,!0),!0},["paragraph","reference","blockquote"]],["heading",function(t,e,r,n){let s=t.bMarks[e]+t.tShift[e],i=t.eMarks[e];if(t.sCount[e]-t.blkIndent>=4)return!1;let o=t.src.charCodeAt(s);if(35!==o||s>=i)return!1;let u=1;for(o=t.src.charCodeAt(++s);35===o&&s<i&&u<=6;)u++,o=t.src.charCodeAt(++s);if(u>6||s<i&&!st(o))return!1;if(n)return!0;i=t.skipSpacesBack(i,s);const c=t.skipCharsBack(i,35,s);c>s&&st(t.src.charCodeAt(c-1))&&(i=c),t.line=e+1;const a=t.push("heading_open","h"+String(u),1);a.markup="########".slice(0,u),a.map=[e,t.line];const l=t.push("inline","",0);return l.content=t.src.slice(s,i).trim(),l.map=[e,t.line],l.children=[],t.push("heading_close","h"+String(u),-1).markup="########".slice(0,u),!0},["paragraph","reference","blockquote"]],["lheading",function(t,e,r){const n=t.md.block.ruler.getRules("paragraph");if(t.sCount[e]-t.blkIndent>=4)return!1;const s=t.parentType;t.parentType="paragraph";let i,o=0,u=e+1;for(;u<r&&!t.isEmpty(u);u++){if(t.sCount[u]-t.blkIndent>3)continue;if(t.sCount[u]>=t.blkIndent){let e=t.bMarks[u]+t.tShift[u];const r=t.eMarks[u];if(e<r&&(i=t.src.charCodeAt(e),(45===i||61===i)&&(e=t.skipChars(e,i),e=t.skipSpaces(e),e>=r))){o=61===i?1:2;break}}if(t.sCount[u]<0)continue;let e=!1;for(let s=0,i=n.length;s<i;s++)if(n[s](t,u,r,!0)){e=!0;break}if(e)break}if(!o)return!1;const c=t.getLines(e,u,t.blkIndent,!1).trim();t.line=u+1;const a=t.push("heading_open","h"+String(o),1);a.markup=String.fromCharCode(i),a.map=[e,t.line];const l=t.push("inline","",0);return l.content=c,l.map=[e,t.line-1],l.children=[],t.push("heading_close","h"+String(o),-1).markup=String.fromCharCode(i),t.parentType=s,!0}],["paragraph",function(t,e,r){const n=t.md.block.ruler.getRules("paragraph"),s=t.parentType;let i=e+1;for(t.parentType="paragraph";i<r&&!t.isEmpty(i);i++){if(t.sCount[i]-t.blkIndent>3)continue;if(t.sCount[i]<0)continue;let e=!1;for(let s=0,o=n.length;s<o;s++)if(n[s](t,i,r,!0)){e=!0;break}if(e)break}const o=t.getLines(e,i,t.blkIndent,!1).trim();t.line=i,t.push("paragraph_open","p",1).map=[e,t.line];const u=t.push("inline","",0);return u.content=o,u.map=[e,t.line],u.children=[],t.push("paragraph_close","p",-1),t.parentType=s,!0}]];function Ht(){this.ruler=new dt;for(let t=0;t<Ut.length;t++)this.ruler.push(Ut[t][0],Ut[t][1],{alt:(Ut[t][2]||[]).slice()})}function Vt(t,e,r,n){this.src=t,this.env=r,this.md=e,this.tokens=n,this.tokens_meta=Array(n.length),this.pos=0,this.posMax=this.src.length,this.level=0,this.pending="",this.pendingLevel=0,this.cache={},this.delimiters=[],this._prev_delimiters=[],this.backticks={},this.backticksScanned=!1,this.linkLevel=0}function Gt(t){switch(t){case 10:case 33:case 35:case 36:case 37:case 38:case 42:case 43:case 45:case 58:case 60:case 61:case 62:case 64:case 91:case 92:case 93:case 94:case 95:case 96:case 123:case 125:case 126:return!0;default:return!1}}Ht.prototype.tokenize=function(t,e,r){const n=this.ruler.getRules(""),s=n.length,i=t.md.options.maxNesting;let o=e,u=!1;for(;o<r&&(t.line=o=t.skipEmptyLines(o),!(o>=r))&&!(t.sCount[o]<t.blkIndent);){if(t.level>=i){t.line=r;break}const e=t.line;let c=!1;for(let i=0;i<s;i++)if(c=n[i](t,o,r,!1),c){if(e>=t.line)throw new Error("block rule didn't increment state.line");break}if(!c)throw new Error("none of the block rules matched");t.tight=!u,t.isEmpty(t.line-1)&&(u=!0),o=t.line,o<r&&t.isEmpty(o)&&(u=!0,o++,t.line=o)}},Ht.prototype.parse=function(t,e,r,n){if(!t)return;const s=new this.State(t,e,r,n);this.tokenize(s,s.line,s.lineMax)},Ht.prototype.State=It,Vt.prototype.pushPending=function(){const t=new _t("text","",0);return t.content=this.pending,t.level=this.pendingLevel,this.tokens.push(t),this.pending="",t},Vt.prototype.push=function(t,e,r){this.pending&&this.pushPending();const n=new _t(t,e,r);let s=null;return r<0&&(this.level--,this.delimiters=this._prev_delimiters.pop()),n.level=this.level,r>0&&(this.level++,this._prev_delimiters.push(this.delimiters),this.delimiters=[],s={delimiters:this.delimiters}),this.pendingLevel=this.level,this.tokens.push(n),this.tokens_meta.push(s),n},Vt.prototype.scanDelims=function(t,e){const r=this.posMax,n=this.src.charCodeAt(t),s=t>0?this.src.charCodeAt(t-1):32;let i=t;for(;i<r&&this.src.charCodeAt(i)===n;)i++;const o=i-t,u=i<r?this.src.charCodeAt(i):32,c=ut(s)||ot(String.fromCharCode(s)),a=ut(u)||ot(String.fromCharCode(u)),l=it(s),h=it(u),p=!h&&(!a||l||c),f=!l&&(!c||h||a);return{can_open:p&&(e||!f||c),can_close:f&&(e||!p||a),length:o}},Vt.prototype.Token=_t;const Wt=/(?:^|[^a-z0-9.+-])([a-z][a-z0-9.+-]*)$/i;const Jt=[];for(let t=0;t<256;t++)Jt.push(0);function Qt(t,e){let r;const n=[],s=e.length;for(let i=0;i<s;i++){const s=e[i];if(126!==s.marker)continue;if(-1===s.end)continue;const o=e[s.end];r=t.tokens[s.token],r.type="s_open",r.tag="s",r.nesting=1,r.markup="~~",r.content="",r=t.tokens[o.token],r.type="s_close",r.tag="s",r.nesting=-1,r.markup="~~",r.content="","text"===t.tokens[o.token-1].type&&"~"===t.tokens[o.token-1].content&&n.push(o.token-1)}for(;n.length;){const e=n.pop();let s=e+1;for(;s<t.tokens.length&&"s_close"===t.tokens[s].type;)s++;s--,e!==s&&(r=t.tokens[s],t.tokens[s]=t.tokens[e],t.tokens[e]=r)}}"\\!\"#$%&'()*+,./:;<=>?@[]^_`{|}~-".split("").forEach((function(t){Jt[t.charCodeAt(0)]=1}));var Xt={tokenize:function(t,e){const r=t.pos,n=t.src.charCodeAt(r);if(e)return!1;if(126!==n)return!1;const s=t.scanDelims(t.pos,!0);let i=s.length;const o=String.fromCharCode(n);if(i<2)return!1;let u;i%2&&(u=t.push("text","",0),u.content=o,i--);for(let e=0;e<i;e+=2)u=t.push("text","",0),u.content=o+o,t.delimiters.push({marker:n,length:0,token:t.tokens.length-1,end:-1,open:s.can_open,close:s.can_close});return t.pos+=s.length,!0},postProcess:function(t){const e=t.tokens_meta,r=t.tokens_meta.length;Qt(t,t.delimiters);for(let n=0;n<r;n++)e[n]&&e[n].delimiters&&Qt(t,e[n].delimiters)}};function Yt(t,e){for(let r=e.length-1;r>=0;r--){const n=e[r];if(95!==n.marker&&42!==n.marker)continue;if(-1===n.end)continue;const s=e[n.end],i=r>0&&e[r-1].end===n.end+1&&e[r-1].marker===n.marker&&e[r-1].token===n.token-1&&e[n.end+1].token===s.token+1,o=String.fromCharCode(n.marker),u=t.tokens[n.token];u.type=i?"strong_open":"em_open",u.tag=i?"strong":"em",u.nesting=1,u.markup=i?o+o:o,u.content="";const c=t.tokens[s.token];c.type=i?"strong_close":"em_close",c.tag=i?"strong":"em",c.nesting=-1,c.markup=i?o+o:o,c.content="",i&&(t.tokens[e[r-1].token].content="",t.tokens[e[n.end+1].token].content="",r--)}}var Kt={tokenize:function(t,e){const r=t.pos,n=t.src.charCodeAt(r);if(e)return!1;if(95!==n&&42!==n)return!1;const s=t.scanDelims(t.pos,42===n);for(let e=0;e<s.length;e++){t.push("text","",0).content=String.fromCharCode(n),t.delimiters.push({marker:n,length:s.length,token:t.tokens.length-1,end:-1,open:s.can_open,close:s.can_close})}return t.pos+=s.length,!0},postProcess:function(t){const e=t.tokens_meta,r=t.tokens_meta.length;Yt(t,t.delimiters);for(let n=0;n<r;n++)e[n]&&e[n].delimiters&&Yt(t,e[n].delimiters)}};const te=/^([a-zA-Z0-9.!#$%&'*+/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*)$/,ee=/^([a-zA-Z][a-zA-Z0-9+.-]{1,31}):([^<>\x00-\x20]*)$/;const re=/^&#((?:x[a-f0-9]{1,6}|[0-9]{1,7}));/i,ne=/^&([a-z][a-z0-9]{1,31});/i;function se(t){const e={},r=t.length;if(!r)return;let n=0,s=-2;const i=[];for(let o=0;o<r;o++){const r=t[o];if(i.push(0),t[n].marker===r.marker&&s===r.token-1||(n=o),s=r.token,r.length=r.length||0,!r.close)continue;e.hasOwnProperty(r.marker)||(e[r.marker]=[-1,-1,-1,-1,-1,-1]);const u=e[r.marker][(r.open?3:0)+r.length%3];let c=n-i[n]-1,a=c;for(;c>u;c-=i[c]+1){const e=t[c];if(e.marker===r.marker&&(e.open&&e.end<0)){let n=!1;if((e.close||r.open)&&(e.length+r.length)%3==0&&(e.length%3==0&&r.length%3==0||(n=!0)),!n){const n=c>0&&!t[c-1].open?i[c-1]+1:0;i[o]=o-c+n,i[c]=n,r.open=!1,e.end=o,e.close=!1,a=-1,s=-2;break}}}-1!==a&&(e[r.marker][(r.open?3:0)+(r.length||0)%3]=a)}}const ie=[["text",function(t,e){let r=t.pos;for(;r<t.posMax&&!Gt(t.src.charCodeAt(r));)r++;return r!==t.pos&&(e||(t.pending+=t.src.slice(t.pos,r)),t.pos=r,!0)}],["linkify",function(t,e){if(!t.md.options.linkify)return!1;if(t.linkLevel>0)return!1;const r=t.pos;if(r+3>t.posMax)return!1;if(58!==t.src.charCodeAt(r))return!1;if(47!==t.src.charCodeAt(r+1))return!1;if(47!==t.src.charCodeAt(r+2))return!1;const n=t.pending.match(Wt);if(!n)return!1;const s=n[1],i=t.md.linkify.matchAtStart(t.src.slice(r-s.length));if(!i)return!1;let o=i.url;if(o.length<=s.length)return!1;o=o.replace(/\*+$/,"");const u=t.md.normalizeLink(o);if(!t.md.validateLink(u))return!1;if(!e){t.pending=t.pending.slice(0,-s.length);const e=t.push("link_open","a",1);e.attrs=[["href",u]],e.markup="linkify",e.info="auto";t.push("text","",0).content=t.md.normalizeLinkText(o);const r=t.push("link_close","a",-1);r.markup="linkify",r.info="auto"}return t.pos+=o.length-s.length,!0}],["newline",function(t,e){let r=t.pos;if(10!==t.src.charCodeAt(r))return!1;const n=t.pending.length-1,s=t.posMax;if(!e)if(n>=0&&32===t.pending.charCodeAt(n))if(n>=1&&32===t.pending.charCodeAt(n-1)){let e=n-1;for(;e>=1&&32===t.pending.charCodeAt(e-1);)e--;t.pending=t.pending.slice(0,e),t.push("hardbreak","br",0)}else t.pending=t.pending.slice(0,-1),t.push("softbreak","br",0);else t.push("softbreak","br",0);for(r++;r<s&&st(t.src.charCodeAt(r));)r++;return t.pos=r,!0}],["escape",function(t,e){let r=t.pos;const n=t.posMax;if(92!==t.src.charCodeAt(r))return!1;if(r++,r>=n)return!1;let s=t.src.charCodeAt(r);if(10===s){for(e||t.push("hardbreak","br",0),r++;r<n&&(s=t.src.charCodeAt(r),st(s));)r++;return t.pos=r,!0}let i=t.src[r];if(s>=55296&&s<=56319&&r+1<n){const e=t.src.charCodeAt(r+1);e>=56320&&e<=57343&&(i+=t.src[r+1],r++)}const o="\\"+i;if(!e){const e=t.push("text_special","",0);s<256&&0!==Jt[s]?e.content=i:e.content=o,e.markup=o,e.info="escape"}return t.pos=r+1,!0}],["backticks",function(t,e){let r=t.pos;if(96!==t.src.charCodeAt(r))return!1;const n=r;r++;const s=t.posMax;for(;r<s&&96===t.src.charCodeAt(r);)r++;const i=t.src.slice(n,r),o=i.length;if(t.backticksScanned&&(t.backticks[o]||0)<=n)return e||(t.pending+=i),t.pos+=o,!0;let u,c=r;for(;-1!==(u=t.src.indexOf("`",c));){for(c=u+1;c<s&&96===t.src.charCodeAt(c);)c++;const n=c-u;if(n===o){if(!e){const e=t.push("code_inline","code",0);e.markup=i,e.content=t.src.slice(r,u).replace(/\n/g," ").replace(/^ (.+) $/,"$1")}return t.pos=c,!0}t.backticks[n]=u}return t.backticksScanned=!0,e||(t.pending+=i),t.pos+=o,!0}],["strikethrough",Xt.tokenize],["emphasis",Kt.tokenize],["link",function(t,e){let r,n,s,i,o="",u="",c=t.pos,a=!0;if(91!==t.src.charCodeAt(t.pos))return!1;const l=t.pos,h=t.posMax,p=t.pos+1,f=t.md.helpers.parseLinkLabel(t,t.pos,!0);if(f<0)return!1;let d=f+1;if(d<h&&40===t.src.charCodeAt(d)){for(a=!1,d++;d<h&&(r=t.src.charCodeAt(d),st(r)||10===r);d++);if(d>=h)return!1;if(c=d,s=t.md.helpers.parseLinkDestination(t.src,d,t.posMax),s.ok){for(o=t.md.normalizeLink(s.str),t.md.validateLink(o)?d=s.pos:o="",c=d;d<h&&(r=t.src.charCodeAt(d),st(r)||10===r);d++);if(s=t.md.helpers.parseLinkTitle(t.src,d,t.posMax),d<h&&c!==d&&s.ok)for(u=s.str,d=s.pos;d<h&&(r=t.src.charCodeAt(d),st(r)||10===r);d++);}(d>=h||41!==t.src.charCodeAt(d))&&(a=!0),d++}if(a){if(void 0===t.env.references)return!1;if(d<h&&91===t.src.charCodeAt(d)?(c=d+1,d=t.md.helpers.parseLinkLabel(t,d),d>=0?n=t.src.slice(c,d++):d=f+1):d=f+1,n||(n=t.src.slice(p,f)),i=t.env.references[ct(n)],!i)return t.pos=l,!1;o=i.href,u=i.title}if(!e){t.pos=p,t.posMax=f;const e=[["href",o]];t.push("link_open","a",1).attrs=e,u&&e.push(["title",u]),t.linkLevel++,t.md.inline.tokenize(t),t.linkLevel--,t.push("link_close","a",-1)}return t.pos=d,t.posMax=h,!0}],["image",function(t,e){let r,n,s,i,o,u,c,a,l="";const h=t.pos,p=t.posMax;if(33!==t.src.charCodeAt(t.pos))return!1;if(91!==t.src.charCodeAt(t.pos+1))return!1;const f=t.pos+2,d=t.md.helpers.parseLinkLabel(t,t.pos+1,!1);if(d<0)return!1;if(i=d+1,i<p&&40===t.src.charCodeAt(i)){for(i++;i<p&&(r=t.src.charCodeAt(i),st(r)||10===r);i++);if(i>=p)return!1;for(a=i,u=t.md.helpers.parseLinkDestination(t.src,i,t.posMax),u.ok&&(l=t.md.normalizeLink(u.str),t.md.validateLink(l)?i=u.pos:l=""),a=i;i<p&&(r=t.src.charCodeAt(i),st(r)||10===r);i++);if(u=t.md.helpers.parseLinkTitle(t.src,i,t.posMax),i<p&&a!==i&&u.ok)for(c=u.str,i=u.pos;i<p&&(r=t.src.charCodeAt(i),st(r)||10===r);i++);else c="";if(i>=p||41!==t.src.charCodeAt(i))return t.pos=h,!1;i++}else{if(void 0===t.env.references)return!1;if(i<p&&91===t.src.charCodeAt(i)?(a=i+1,i=t.md.helpers.parseLinkLabel(t,i),i>=0?s=t.src.slice(a,i++):i=d+1):i=d+1,s||(s=t.src.slice(f,d)),o=t.env.references[ct(s)],!o)return t.pos=h,!1;l=o.href,c=o.title}if(!e){n=t.src.slice(f,d);const e=[];t.md.inline.parse(n,t.md,t.env,e);const 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