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vue-files-preview-inno

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A tool for previewing files such as doc, excel, pdf, image, markdown, txt, audio, and video and so on.

github.com/innoslate/vue-files-preview

innoslate/vue-files-preview

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{"version":3,"file":"reference.mjs","sources":["../../../../../../node_modules/markdown-it/lib/rules_block/reference.mjs"],"sourcesContent":["import { isSpace, normalizeReference } from '../common/utils.mjs'\n\nexport default function reference (state, startLine, _endLine, silent) {\n let pos = state.bMarks[startLine] + state.tShift[startLine]\n let max = state.eMarks[startLine]\n let nextLine = startLine + 1\n\n // if it's indented more than 3 spaces, it should be a code block\n if (state.sCount[startLine] - state.blkIndent >= 4) { return false }\n\n if (state.src.charCodeAt(pos) !== 0x5B/* [ */) { return false }\n\n function getNextLine (nextLine) {\n const endLine = state.lineMax\n\n if (nextLine >= endLine || state.isEmpty(nextLine)) {\n // empty line or end of input\n return null\n }\n\n let isContinuation = false\n\n // this would be a code block normally, but after paragraph\n // it's considered a lazy continuation regardless of what's there\n if (state.sCount[nextLine] - state.blkIndent > 3) { isContinuation = true }\n\n // quirk for blockquotes, this line should already be checked by that rule\n if (state.sCount[nextLine] < 0) { isContinuation = true }\n\n if (!isContinuation) {\n const terminatorRules = state.md.block.ruler.getRules('reference')\n const oldParentType = state.parentType\n state.parentType = 'reference'\n\n // Some tags can terminate paragraph without empty line.\n let terminate = false\n for (let i = 0, l = terminatorRules.length; i < l; i++) {\n if (terminatorRules[i](state, nextLine, endLine, true)) {\n terminate = true\n break\n }\n }\n\n state.parentType = oldParentType\n if (terminate) {\n // terminated by another block\n return null\n }\n }\n\n const pos = state.bMarks[nextLine] + state.tShift[nextLine]\n const max = state.eMarks[nextLine]\n\n // max + 1 explicitly includes the newline\n return state.src.slice(pos, max + 1)\n }\n\n let str = state.src.slice(pos, max + 1)\n\n max = str.length\n let labelEnd = -1\n\n for (pos = 1; pos < max; pos++) {\n const ch = str.charCodeAt(pos)\n if (ch === 0x5B /* [ */) {\n return false\n } else if (ch === 0x5D /* ] */) {\n labelEnd = pos\n break\n } else if (ch === 0x0A /* \\n */) {\n const lineContent = getNextLine(nextLine)\n if (lineContent !== null) {\n str += lineContent\n max = str.length\n nextLine++\n }\n } else if (ch === 0x5C /* \\ */) {\n pos++\n if (pos < max && str.charCodeAt(pos) === 0x0A) {\n const lineContent = getNextLine(nextLine)\n if (lineContent !== null) {\n str += lineContent\n max = str.length\n nextLine++\n }\n }\n }\n }\n\n if (labelEnd < 0 || str.charCodeAt(labelEnd + 1) !== 0x3A/* : */) { return false }\n\n // [label]: destination 'title'\n // ^^^ skip optional whitespace here\n for (pos = labelEnd + 2; pos < max; pos++) {\n const ch = str.charCodeAt(pos)\n if (ch === 0x0A) {\n const lineContent = getNextLine(nextLine)\n if (lineContent !== null) {\n str += lineContent\n max = str.length\n nextLine++\n }\n } else if (isSpace(ch)) {\n /* eslint no-empty:0 */\n } else {\n break\n }\n }\n\n // [label]: destination 'title'\n // ^^^^^^^^^^^ parse this\n const destRes = state.md.helpers.parseLinkDestination(str, pos, max)\n if (!destRes.ok) { return false }\n\n const href = state.md.normalizeLink(destRes.str)\n if (!state.md.validateLink(href)) { return false }\n\n pos = destRes.pos\n\n // save cursor state, we could require to rollback later\n const destEndPos = pos\n const destEndLineNo = nextLine\n\n // [label]: destination 'title'\n // ^^^ skipping those spaces\n const start = pos\n for (; pos < max; pos++) {\n const ch = str.charCodeAt(pos)\n if (ch === 0x0A) {\n const lineContent = getNextLine(nextLine)\n if (lineContent !== null) {\n str += lineContent\n max = str.length\n nextLine++\n }\n } else if (isSpace(ch)) {\n /* eslint no-empty:0 */\n } else {\n break\n }\n }\n\n // [label]: destination 'title'\n // ^^^^^^^ parse this\n let titleRes = state.md.helpers.parseLinkTitle(str, pos, max)\n while (titleRes.can_continue) {\n const lineContent = getNextLine(nextLine)\n if (lineContent === null) break\n str += lineContent\n pos = max\n max = str.length\n nextLine++\n titleRes = state.md.helpers.parseLinkTitle(str, pos, max, titleRes)\n }\n let title\n\n if (pos < max && start !== pos && titleRes.ok) {\n title = titleRes.str\n pos = titleRes.pos\n } else {\n title = ''\n pos = destEndPos\n nextLine = destEndLineNo\n }\n\n // skip trailing spaces until the rest of the line\n while (pos < max) {\n const ch = str.charCodeAt(pos)\n if (!isSpace(ch)) { break }\n pos++\n }\n\n if (pos < max && str.charCodeAt(pos) !== 0x0A) {\n if (title) {\n // garbage at the end of the line after title,\n // but it could still be a valid reference if we roll back\n title = ''\n pos = destEndPos\n nextLine = destEndLineNo\n while (pos < max) {\n const ch = str.charCodeAt(pos)\n if (!isSpace(ch)) { break }\n pos++\n }\n }\n }\n\n if (pos < max && str.charCodeAt(pos) !== 0x0A) {\n // garbage at the end of the line\n return false\n }\n\n const label = normalizeReference(str.slice(1, labelEnd))\n if (!label) {\n // CommonMark 0.20 disallows empty labels\n return false\n }\n\n // Reference can not terminate anything. 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