diff options
Diffstat (limited to 'packages/markdown-it-14.1.0/lib/helpers')
4 files changed, 203 insertions, 0 deletions
diff --git a/packages/markdown-it-14.1.0/lib/helpers/index.mjs b/packages/markdown-it-14.1.0/lib/helpers/index.mjs new file mode 100644 index 0000000..7ea30af --- /dev/null +++ b/packages/markdown-it-14.1.0/lib/helpers/index.mjs @@ -0,0 +1,11 @@ +// Just a shortcut for bulk export + +import parseLinkLabel from './parse_link_label.mjs' +import parseLinkDestination from './parse_link_destination.mjs' +import parseLinkTitle from './parse_link_title.mjs' + +export { + parseLinkLabel, + parseLinkDestination, + parseLinkTitle +} diff --git a/packages/markdown-it-14.1.0/lib/helpers/parse_link_destination.mjs b/packages/markdown-it-14.1.0/lib/helpers/parse_link_destination.mjs new file mode 100644 index 0000000..6a723a6 --- /dev/null +++ b/packages/markdown-it-14.1.0/lib/helpers/parse_link_destination.mjs @@ -0,0 +1,77 @@ +// Parse link destination +// + +import { unescapeAll } from '../common/utils.mjs' + +export default 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 +} diff --git a/packages/markdown-it-14.1.0/lib/helpers/parse_link_label.mjs b/packages/markdown-it-14.1.0/lib/helpers/parse_link_label.mjs new file mode 100644 index 0000000..f1a53fa --- /dev/null +++ b/packages/markdown-it-14.1.0/lib/helpers/parse_link_label.mjs @@ -0,0 +1,49 @@ +// Parse link label +// +// this function assumes that first character ("[") already matches; +// returns the end of the label +// + +export default 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 +} diff --git a/packages/markdown-it-14.1.0/lib/helpers/parse_link_title.mjs b/packages/markdown-it-14.1.0/lib/helpers/parse_link_title.mjs new file mode 100644 index 0000000..4605647 --- /dev/null +++ b/packages/markdown-it-14.1.0/lib/helpers/parse_link_title.mjs @@ -0,0 +1,66 @@ +// Parse link title +// + +import { unescapeAll } from '../common/utils.mjs' + +// Parse link title within `str` in [start, max] range, +// or continue previous parsing if `prev_state` is defined (equal to result of last execution). +// +export default 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 +} |