From d607ac12097afb5cb6f398a4e7b5cf4316efedc6 Mon Sep 17 00:00:00 2001 From: altaf-creator Date: Sun, 12 May 2024 12:14:02 +0700 Subject: self host --- packages/markdown-it-14.1.0/dist/index.cjs.js | 5540 ++++++++++++++++ packages/markdown-it-14.1.0/dist/markdown-it.js | 6963 ++++++++++++++++++++ .../markdown-it-14.1.0/dist/markdown-it.min.js | 2 + 3 files changed, 12505 insertions(+) create mode 100644 packages/markdown-it-14.1.0/dist/index.cjs.js create mode 100644 packages/markdown-it-14.1.0/dist/markdown-it.js create mode 100644 packages/markdown-it-14.1.0/dist/markdown-it.min.js (limited to 'packages/markdown-it-14.1.0/dist') 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, '$1'); +} +function unescapeAll(str) { + if (str.indexOf('\\') < 0 && str.indexOf('&') < 0) { + return str; + } + return str.replace(UNESCAPE_ALL_RE, function (match, escaped, entity) { + if (escaped) { + return escaped; + } + return replaceEntityPattern(match, entity); + }); +} +const HTML_ESCAPE_TEST_RE = /[&<>"]/; +const HTML_ESCAPE_REPLACE_RE = /[&<>"]/g; +const HTML_REPLACEMENTS = { + '&': '&', + '<': '<', + '>': '>', + '"': '"' +}; +function replaceUnsafeChar(ch) { + return HTML_REPLACEMENTS[ch]; +} +function escapeHtml(str) { + if (HTML_ESCAPE_TEST_RE.test(str)) { + return str.replace(HTML_ESCAPE_REPLACE_RE, replaceUnsafeChar); + } + return str; +} +const REGEXP_ESCAPE_RE = /[.?*+^$[\]\\(){}|-]/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; 03B8;;;;N;GREEK SMALL LETTER SCRIPT THETA;;0398;;0398 + // 03F4;GREEK CAPITAL THETA SYMBOL;Lu;0;L; 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 '' + escapeHtml(token.content) + ''; +}; +default_rules.code_block = function (tokens, idx, options, env, slf) { + const token = tokens[idx]; + return '' + escapeHtml(tokens[idx].content) + '\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('${highlighted}\n`; + } + return `
${highlighted}
\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 ? '
\n' : '
\n'; +}; +default_rules.softbreak = function (tokens, idx, options /*, env */) { + return options.breaks ? options.xhtmlOut ? '
\n' : '
\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 ''; }; + * md.renderer.rules.strong_close = function () { return ''; }; + * + * 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. ``. + // + 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 /^\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://example.com/ + 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 ?.... → ?.., !.... → !..) +// ???????? → ???, !!!!! → !!!, `,,` → `,` +// -- → –, --- → — +// + +// 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 = ']*>'; +const cdata = ''; +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], [/^/, true], [/^/, true], [new RegExp('^|$))', 'i'), /^$/, 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 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. + // + // `whatever` -> `whatever` + // + 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]( "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]( "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]( "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]( "title" ) + // ^^ skipping these spaces + start = pos; + for (; pos < max; pos++) { + code = state.src.charCodeAt(pos); + if (!isSpace(code) && code !== 0x0A) { + break; + } + } + + // [link]( "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]( "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]( "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]( "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]( "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]( "title" ) + // ^^ skipping these spaces + start = pos; + for (; pos < max; pos++) { + code = state.src.charCodeAt(pos); + if (!isSpace(code) && code !== 0x0A) { + break; + } + } + + // [link]( "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]( "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 '' + +/* 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 /^\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 - {, ¯, ", ... + +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 (
) + xhtmlOut: false, + // Convert '\n' in paragraphs into
+ 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 ) + xhtmlOut: false, + // Convert '\n' in paragraphs into
+ 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 ) + xhtmlOut: true, + // Convert '\n' in paragraphs into
+ 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 = 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 + * (`
`). 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 `
`. + * - __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 ` or ``): + * + * ```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 '
' +
+ *                hljs.highlight(str, { language: lang, ignoreIllegals: true }).value +
+ *                '
'; + * } catch (__) {} + * } + * + * return '
' + md.utils.escapeHtml(str) + '
'; + * } + * }); + * ``` + * + **/ +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 `

` 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, "$1"); + } + function unescapeAll(str) { + if (str.indexOf("\\") < 0 && str.indexOf("&") < 0) { + return str; + } + return str.replace(UNESCAPE_ALL_RE, (function(match, escaped, entity) { + if (escaped) { + return escaped; + } + return replaceEntityPattern(match, entity); + })); + } + const HTML_ESCAPE_TEST_RE = /[&<>"]/; + const HTML_ESCAPE_REPLACE_RE = /[&<>"]/g; + const HTML_REPLACEMENTS = { + "&": "&", + "<": "<", + ">": ">", + '"': """ + }; + function replaceUnsafeChar(ch) { + return HTML_REPLACEMENTS[ch]; + } + function escapeHtml(str) { + if (HTML_ESCAPE_TEST_RE.test(str)) { + return str.replace(HTML_ESCAPE_REPLACE_RE, replaceUnsafeChar); + } + return str; + } + const REGEXP_ESCAPE_RE = /[.?*+^$[\]\\(){}|-]/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; 03B8;;;;N;GREEK SMALL LETTER SCRIPT THETA;;0398;;0398 + // 03F4;GREEK CAPITAL THETA SYMBOL;Lu;0;L; 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 "" + escapeHtml(token.content) + ""; + }; + default_rules.code_block = function(tokens, idx, options, env, slf) { + const token = tokens[idx]; + return "" + escapeHtml(tokens[idx].content) + "\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("${highlighted}\n`; + } + return `

${highlighted}
\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 ? "
\n" : "
\n"; + }; + default_rules.softbreak = function(tokens, idx, options /*, env */) { + return options.breaks ? options.xhtmlOut ? "
\n" : "
\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 ''; }; + * md.renderer.rules.strong_close = function () { return ''; }; + * + * 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. ``. + 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 /^\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:
//example.com/ + 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 ?.... → ?.., !.... → !..) + // ???????? → ???, !!!!! → !!!, `,,` → `,` + // -- → –, --- → — + + // 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 = "]*>"; + const cdata = ""; + 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 ], [ /^/, true ], [ /^/, true ], [ new RegExp("^|$))", "i"), /^$/, 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 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. + + // `whatever` -> `whatever` + + 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]( "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]( "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]( "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]( "title" ) + // ^^ skipping these spaces + start = pos; + for (;pos < max; pos++) { + code = state.src.charCodeAt(pos); + if (!isSpace(code) && code !== 10) { + break; + } + } + // [link]( "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]( "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]( "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]( "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]( "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]( "title" ) + // ^^ skipping these spaces + start = pos; + for (;pos < max; pos++) { + code = state.src.charCodeAt(pos); + if (!isSpace(code) && code !== 10) { + break; + } + } + // [link]( "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]( "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 '' + /* 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 /^\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 - {, ¯, ", ... + 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 + * @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 state to , + // 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 + * @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 (
) + xhtmlOut: false, + // Convert '\n' in paragraphs into
+ 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 ) + xhtmlOut: false, + // Convert '\n' in paragraphs into
+ 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 ) + xhtmlOut: true, + // Convert '\n' in paragraphs into
+ 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 = 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 + * (`
`). 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 `
`. + * - __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 ` or ``): + * + * ```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 '
' +
+   *                hljs.highlight(str, { language: lang, ignoreIllegals: true }).value +
+   *                '
'; + * } catch (__) {} + * } + * + * return '
' + md.utils.escapeHtml(str) + '
'; + * } + * }); + * ``` + * + **/ 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. 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` 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 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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=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>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 B.NumericHex:return this.emitNumericEntity(0,3);case B.NumericStart:return null===(t=this.errors)||void 0===t||t.absenceOfDigitsInNumericCharacterReference(this.consumed),0;case B.EntityStart:return 0}}}function N(t){let e="";const r=new R(t,(t=>e+=z(t)));return function(t,n){let s=0,i=0;for(;(i=t.indexOf("&",i))>=0;){e+=t.slice(s,i),r.startEntity(n);const o=r.write(t,i+1);if(o<0){s=i+r.end();break}s=i+o,i=0===o?s+1:s}const o=e+t.slice(s);return e="",o}}function P(t,e,r,n){const s=(e&q.BRANCH_LENGTH)>>7,i=e&q.JUMP_TABLE;if(0===s)return 0!==i&&n===i?r:-1;if(i){const e=n-i;return e<0||e>=s?-1:t[r+e]-1}let o=r,u=o+s-1;for(;o<=u;){const e=o+u>>>1,r=t[e];if(rn))return t[e+s];u=e-1}}return-1}const O=N(x);function j(t,e=L.Legacy){return O(t,e)}function Z(t){return"[object String]"===function(t){return 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ke(t,e){const r=new ge(t,e);return t.__compiled__[r.schema].normalize(r,t),r}function De(t,e){if(!(this instanceof De))return new De(t,e);var r;e||(r=t,Object.keys(r||{}).reduce((function(t,e){return t||pe.hasOwnProperty(e)}),!1)&&(e=t,t={})),this.__opts__=ce({},pe,e),this.__index__=-1,this.__last_index__=-1,this.__schema__="",this.__text_cache__="",this.__schemas__=ce({},fe,t),this.__compiled__={},this.__tlds__=_e,this.__tlds_replaced__=!1,this.re={},me(this)}De.prototype.add=function(t,e){return this.__schemas__[t]=e,me(this),this},De.prototype.set=function(t){return this.__opts__=ce(this.__opts__,t),this},De.prototype.test=function(t){if(this.__text_cache__=t,this.__index__=-1,!t.length)return!1;let e,r,n,s,i,o,u,c,a;if(this.re.schema_test.test(t))for(u=this.re.schema_search,u.lastIndex=0;null!==(e=u.exec(t));)if(s=this.testSchemaAt(t,e[2],u.lastIndex),s){this.__schema__=e[2],this.__index__=e.index+e[1].length,this.__last_index__=e.index+e[0].length+s;break}return this.__opts__.fuzzyLink&&this.__compiled__["http:"]&&(c=t.search(this.re.host_fuzzy_test),c>=0&&(this.__index__<0||c=0&&null!==(n=t.match(this.re.email_fuzzy))&&(i=n.index+n[1].length,o=n.index+n[0].length,(this.__index__<0||ithis.__last_index__)&&(this.__schema__="mailto:",this.__index__=i,this.__last_index__=o))),this.__index__>=0},De.prototype.pretest=function(t){return this.re.pretest.test(t)},De.prototype.testSchemaAt=function(t,e,r){return this.__compiled__[e.toLowerCase()]?this.__compiled__[e.toLowerCase()].validate(t,r,this):0},De.prototype.match=function(t){const e=[];let r=0;this.__index__>=0&&this.__text_cache__===t&&(e.push(ke(this,r)),r=this.__last_index__);let n=r?t.slice(r):t;for(;this.test(n);)e.push(ke(this,r)),n=n.slice(this.__last_index__),r+=this.__last_index__;return e.length?e:null},De.prototype.matchAtStart=function(t){if(this.__text_cache__=t,this.__index__=-1,!t.length)return null;const e=this.re.schema_at_start.exec(t);if(!e)return null;const 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