`.\n /** @type {Element} */\n let result = {\n type: 'element',\n tagName: 'code',\n properties,\n children: [{type: 'text', value}]\n }\n\n if (node.meta) {\n result.data = {meta: node.meta}\n }\n\n state.patch(node, result)\n result = state.applyData(node, result)\n\n // Create ``.\n result = {type: 'element', tagName: 'pre', properties: {}, children: [result]}\n state.patch(node, result)\n return result\n}\n","/**\n * @typedef {import('hast').Element} Element\n * @typedef {import('mdast').Delete} Delete\n * @typedef {import('../state.js').State} State\n */\n\n// Make VS Code show references to the above types.\n''\n\n/**\n * Turn an mdast `delete` node into hast.\n *\n * @param {State} state\n * Info passed around.\n * @param {Delete} node\n * mdast node.\n * @returns {Element}\n * hast node.\n */\nexport function strikethrough(state, node) {\n /** @type {Element} */\n const result = {\n type: 'element',\n tagName: 'del',\n properties: {},\n children: state.all(node)\n }\n state.patch(node, result)\n return state.applyData(node, result)\n}\n","/**\n * @typedef {import('hast').Element} Element\n * @typedef {import('mdast').Emphasis} Emphasis\n * @typedef {import('../state.js').State} State\n */\n\n// Make VS Code show references to the above types.\n''\n\n/**\n * Turn an mdast `emphasis` node into hast.\n *\n * @param {State} state\n * Info passed around.\n * @param {Emphasis} node\n * mdast node.\n * @returns {Element}\n * hast node.\n */\nexport function emphasis(state, node) {\n /** @type {Element} */\n const result = {\n type: 'element',\n tagName: 'em',\n properties: {},\n children: state.all(node)\n }\n state.patch(node, result)\n return state.applyData(node, result)\n}\n","/**\n * @typedef {import('hast').Element} Element\n * @typedef {import('mdast').FootnoteReference} FootnoteReference\n * @typedef {import('../state.js').State} State\n */\n\nimport {normalizeUri} from 'micromark-util-sanitize-uri'\n\n/**\n * Turn an mdast `footnoteReference` node into hast.\n *\n * @param {State} state\n * Info passed around.\n * @param {FootnoteReference} node\n * mdast node.\n * @returns {Element}\n * hast node.\n */\nexport function footnoteReference(state, node) {\n const clobberPrefix =\n typeof state.options.clobberPrefix === 'string'\n ? state.options.clobberPrefix\n : 'user-content-'\n const id = String(node.identifier).toUpperCase()\n const safeId = normalizeUri(id.toLowerCase())\n const index = state.footnoteOrder.indexOf(id)\n /** @type {number} */\n let counter\n\n let reuseCounter = state.footnoteCounts.get(id)\n\n if (reuseCounter === undefined) {\n reuseCounter = 0\n state.footnoteOrder.push(id)\n counter = state.footnoteOrder.length\n } else {\n counter = index + 1\n }\n\n reuseCounter += 1\n state.footnoteCounts.set(id, reuseCounter)\n\n /** @type {Element} */\n const link = {\n type: 'element',\n tagName: 'a',\n properties: {\n href: '#' + clobberPrefix + 'fn-' + safeId,\n id:\n clobberPrefix +\n 'fnref-' +\n safeId +\n (reuseCounter > 1 ? '-' + reuseCounter : ''),\n dataFootnoteRef: true,\n ariaDescribedBy: ['footnote-label']\n },\n children: [{type: 'text', value: String(counter)}]\n }\n state.patch(node, link)\n\n /** @type {Element} */\n const sup = {\n type: 'element',\n tagName: 'sup',\n properties: {},\n children: [link]\n }\n state.patch(node, sup)\n return state.applyData(node, sup)\n}\n","/**\n * @typedef {import('hast').Element} Element\n * @typedef {import('mdast').Heading} Heading\n * @typedef {import('../state.js').State} State\n */\n\n// Make VS Code show references to the above types.\n''\n\n/**\n * Turn an mdast `heading` node into hast.\n *\n * @param {State} state\n * Info passed around.\n * @param {Heading} node\n * mdast node.\n * @returns {Element}\n * hast node.\n */\nexport function heading(state, node) {\n /** @type {Element} */\n const result = {\n type: 'element',\n tagName: 'h' + node.depth,\n properties: {},\n children: state.all(node)\n }\n state.patch(node, result)\n return state.applyData(node, result)\n}\n","/**\n * @typedef {import('hast').Element} Element\n * @typedef {import('mdast').Html} Html\n * @typedef {import('../state.js').State} State\n * @typedef {import('../../index.js').Raw} Raw\n */\n\n// Make VS Code show references to the above types.\n''\n\n/**\n * Turn an mdast `html` node into hast (`raw` node in dangerous mode, otherwise\n * nothing).\n *\n * @param {State} state\n * Info passed around.\n * @param {Html} node\n * mdast node.\n * @returns {Element | Raw | undefined}\n * hast node.\n */\nexport function html(state, node) {\n if (state.options.allowDangerousHtml) {\n /** @type {Raw} */\n const result = {type: 'raw', value: node.value}\n state.patch(node, result)\n return state.applyData(node, result)\n }\n\n return undefined\n}\n","/**\n * @typedef {import('hast').Element} Element\n * @typedef {import('hast').ElementContent} ElementContent\n * @typedef {import('hast').Properties} Properties\n * @typedef {import('mdast').ImageReference} ImageReference\n * @typedef {import('../state.js').State} State\n */\n\nimport {normalizeUri} from 'micromark-util-sanitize-uri'\nimport {revert} from '../revert.js'\n\n/**\n * Turn an mdast `imageReference` node into hast.\n *\n * @param {State} state\n * Info passed around.\n * @param {ImageReference} node\n * mdast node.\n * @returns {Array | ElementContent}\n * hast node.\n */\nexport function imageReference(state, node) {\n const id = String(node.identifier).toUpperCase()\n const definition = state.definitionById.get(id)\n\n if (!definition) {\n return revert(state, node)\n }\n\n /** @type {Properties} */\n const properties = {src: normalizeUri(definition.url || ''), alt: node.alt}\n\n if (definition.title !== null && definition.title !== undefined) {\n properties.title = definition.title\n }\n\n /** @type {Element} */\n const result = {type: 'element', tagName: 'img', properties, children: []}\n state.patch(node, result)\n return state.applyData(node, result)\n}\n","/**\n * @typedef {import('hast').Element} Element\n * @typedef {import('hast').Properties} Properties\n * @typedef {import('mdast').Image} Image\n * @typedef {import('../state.js').State} State\n */\n\nimport {normalizeUri} from 'micromark-util-sanitize-uri'\n\n/**\n * Turn an mdast `image` node into hast.\n *\n * @param {State} state\n * Info passed around.\n * @param {Image} node\n * mdast node.\n * @returns {Element}\n * hast node.\n */\nexport function image(state, node) {\n /** @type {Properties} */\n const properties = {src: normalizeUri(node.url)}\n\n if (node.alt !== null && node.alt !== undefined) {\n properties.alt = node.alt\n }\n\n if (node.title !== null && node.title !== undefined) {\n properties.title = node.title\n }\n\n /** @type {Element} */\n const result = {type: 'element', tagName: 'img', properties, children: []}\n state.patch(node, result)\n return state.applyData(node, result)\n}\n","/**\n * @typedef {import('hast').Element} Element\n * @typedef {import('hast').Text} Text\n * @typedef {import('mdast').InlineCode} InlineCode\n * @typedef {import('../state.js').State} State\n */\n\n// Make VS Code show references to the above types.\n''\n\n/**\n * Turn an mdast `inlineCode` node into hast.\n *\n * @param {State} state\n * Info passed around.\n * @param {InlineCode} node\n * mdast node.\n * @returns {Element}\n * hast node.\n */\nexport function inlineCode(state, node) {\n /** @type {Text} */\n const text = {type: 'text', value: node.value.replace(/\\r?\\n|\\r/g, ' ')}\n state.patch(node, text)\n\n /** @type {Element} */\n const result = {\n type: 'element',\n tagName: 'code',\n properties: {},\n children: [text]\n }\n state.patch(node, result)\n return state.applyData(node, result)\n}\n","/**\n * @typedef {import('hast').Element} Element\n * @typedef {import('hast').ElementContent} ElementContent\n * @typedef {import('hast').Properties} Properties\n * @typedef {import('mdast').LinkReference} LinkReference\n * @typedef {import('../state.js').State} State\n */\n\nimport {normalizeUri} from 'micromark-util-sanitize-uri'\nimport {revert} from '../revert.js'\n\n/**\n * Turn an mdast `linkReference` node into hast.\n *\n * @param {State} state\n * Info passed around.\n * @param {LinkReference} node\n * mdast node.\n * @returns {Array | ElementContent}\n * hast node.\n */\nexport function linkReference(state, node) {\n const id = String(node.identifier).toUpperCase()\n const definition = state.definitionById.get(id)\n\n if (!definition) {\n return revert(state, node)\n }\n\n /** @type {Properties} */\n const properties = {href: normalizeUri(definition.url || '')}\n\n if (definition.title !== null && definition.title !== undefined) {\n properties.title = definition.title\n }\n\n /** @type {Element} */\n const result = {\n type: 'element',\n tagName: 'a',\n properties,\n children: state.all(node)\n }\n state.patch(node, result)\n return state.applyData(node, result)\n}\n","/**\n * @typedef {import('hast').Element} Element\n * @typedef {import('hast').Properties} Properties\n * @typedef {import('mdast').Link} Link\n * @typedef {import('../state.js').State} State\n */\n\nimport {normalizeUri} from 'micromark-util-sanitize-uri'\n\n/**\n * Turn an mdast `link` node into hast.\n *\n * @param {State} state\n * Info passed around.\n * @param {Link} node\n * mdast node.\n * @returns {Element}\n * hast node.\n */\nexport function link(state, node) {\n /** @type {Properties} */\n const properties = {href: normalizeUri(node.url)}\n\n if (node.title !== null && node.title !== undefined) {\n properties.title = node.title\n }\n\n /** @type {Element} */\n const result = {\n type: 'element',\n tagName: 'a',\n properties,\n children: state.all(node)\n }\n state.patch(node, result)\n return state.applyData(node, result)\n}\n","/**\n * @typedef {import('hast').Element} Element\n * @typedef {import('hast').Properties} Properties\n * @typedef {import('mdast').List} List\n * @typedef {import('../state.js').State} State\n */\n\n// Make VS Code show references to the above types.\n''\n\n/**\n * Turn an mdast `list` node into hast.\n *\n * @param {State} state\n * Info passed around.\n * @param {List} node\n * mdast node.\n * @returns {Element}\n * hast node.\n */\nexport function list(state, node) {\n /** @type {Properties} */\n const properties = {}\n const results = state.all(node)\n let index = -1\n\n if (typeof node.start === 'number' && node.start !== 1) {\n properties.start = node.start\n }\n\n // Like GitHub, add a class for custom styling.\n while (++index < results.length) {\n const child = results[index]\n\n if (\n child.type === 'element' &&\n child.tagName === 'li' &&\n child.properties &&\n Array.isArray(child.properties.className) &&\n child.properties.className.includes('task-list-item')\n ) {\n properties.className = ['contains-task-list']\n break\n }\n }\n\n /** @type {Element} */\n const result = {\n type: 'element',\n tagName: node.ordered ? 'ol' : 'ul',\n properties,\n children: state.wrap(results, true)\n }\n state.patch(node, result)\n return state.applyData(node, result)\n}\n","/**\n * @typedef {import('hast').Element} Element\n * @typedef {import('mdast').Paragraph} Paragraph\n * @typedef {import('../state.js').State} State\n */\n\n// Make VS Code show references to the above types.\n''\n\n/**\n * Turn an mdast `paragraph` node into hast.\n *\n * @param {State} state\n * Info passed around.\n * @param {Paragraph} node\n * mdast node.\n * @returns {Element}\n * hast node.\n */\nexport function paragraph(state, node) {\n /** @type {Element} */\n const result = {\n type: 'element',\n tagName: 'p',\n properties: {},\n children: state.all(node)\n }\n state.patch(node, result)\n return state.applyData(node, result)\n}\n","/**\n * @typedef {import('hast').Parents} HastParents\n * @typedef {import('hast').Root} HastRoot\n * @typedef {import('mdast').Root} MdastRoot\n * @typedef {import('../state.js').State} State\n */\n\n// Make VS Code show references to the above types.\n''\n\n/**\n * Turn an mdast `root` node into hast.\n *\n * @param {State} state\n * Info passed around.\n * @param {MdastRoot} node\n * mdast node.\n * @returns {HastParents}\n * hast node.\n */\nexport function root(state, node) {\n /** @type {HastRoot} */\n const result = {type: 'root', children: state.wrap(state.all(node))}\n state.patch(node, result)\n return state.applyData(node, result)\n}\n","/**\n * @typedef {import('hast').Element} Element\n * @typedef {import('mdast').Strong} Strong\n * @typedef {import('../state.js').State} State\n */\n\n// Make VS Code show references to the above types.\n''\n\n/**\n * Turn an mdast `strong` node into hast.\n *\n * @param {State} state\n * Info passed around.\n * @param {Strong} node\n * mdast node.\n * @returns {Element}\n * hast node.\n */\nexport function strong(state, node) {\n /** @type {Element} */\n const result = {\n type: 'element',\n tagName: 'strong',\n properties: {},\n children: state.all(node)\n }\n state.patch(node, result)\n return state.applyData(node, result)\n}\n","/**\n * @typedef {import('hast').Element} Element\n * @typedef {import('mdast').Table} Table\n * @typedef {import('../state.js').State} State\n */\n\nimport {pointEnd, pointStart} from 'unist-util-position'\n\n/**\n * Turn an mdast `table` node into hast.\n *\n * @param {State} state\n * Info passed around.\n * @param {Table} node\n * mdast node.\n * @returns {Element}\n * hast node.\n */\nexport function table(state, node) {\n const rows = state.all(node)\n const firstRow = rows.shift()\n /** @type {Array} */\n const tableContent = []\n\n if (firstRow) {\n /** @type {Element} */\n const head = {\n type: 'element',\n tagName: 'thead',\n properties: {},\n children: state.wrap([firstRow], true)\n }\n state.patch(node.children[0], head)\n tableContent.push(head)\n }\n\n if (rows.length > 0) {\n /** @type {Element} */\n const body = {\n type: 'element',\n tagName: 'tbody',\n properties: {},\n children: state.wrap(rows, true)\n }\n\n const start = pointStart(node.children[1])\n const end = pointEnd(node.children[node.children.length - 1])\n if (start && end) body.position = {start, end}\n tableContent.push(body)\n }\n\n /** @type {Element} */\n const result = {\n type: 'element',\n tagName: 'table',\n properties: {},\n children: state.wrap(tableContent, true)\n }\n state.patch(node, result)\n return state.applyData(node, result)\n}\n","/**\n * @typedef {import('hast').Element} Element\n * @typedef {import('mdast').TableCell} TableCell\n * @typedef {import('../state.js').State} State\n */\n\n// Make VS Code show references to the above types.\n''\n\n/**\n * Turn an mdast `tableCell` node into hast.\n *\n * @param {State} state\n * Info passed around.\n * @param {TableCell} node\n * mdast node.\n * @returns {Element}\n * hast node.\n */\nexport function tableCell(state, node) {\n // Note: this function is normally not called: see `table-row` for how rows\n // and their cells are compiled.\n /** @type {Element} */\n const result = {\n type: 'element',\n tagName: 'td', // Assume body cell.\n properties: {},\n children: state.all(node)\n }\n state.patch(node, result)\n return state.applyData(node, result)\n}\n","/**\n * @typedef {import('hast').Element} Element\n * @typedef {import('hast').ElementContent} ElementContent\n * @typedef {import('hast').Properties} Properties\n * @typedef {import('mdast').Parents} Parents\n * @typedef {import('mdast').TableRow} TableRow\n * @typedef {import('../state.js').State} State\n */\n\n// Make VS Code show references to the above types.\n''\n\n/**\n * Turn an mdast `tableRow` node into hast.\n *\n * @param {State} state\n * Info passed around.\n * @param {TableRow} node\n * mdast node.\n * @param {Parents | undefined} parent\n * Parent of `node`.\n * @returns {Element}\n * hast node.\n */\nexport function tableRow(state, node, parent) {\n const siblings = parent ? parent.children : undefined\n // Generate a body row when without parent.\n const rowIndex = siblings ? siblings.indexOf(node) : 1\n const tagName = rowIndex === 0 ? 'th' : 'td'\n // To do: option to use `style`?\n const align = parent && parent.type === 'table' ? parent.align : undefined\n const length = align ? align.length : node.children.length\n let cellIndex = -1\n /** @type {Array} */\n const cells = []\n\n while (++cellIndex < length) {\n // Note: can also be undefined.\n const cell = node.children[cellIndex]\n /** @type {Properties} */\n const properties = {}\n const alignValue = align ? align[cellIndex] : undefined\n\n if (alignValue) {\n properties.align = alignValue\n }\n\n /** @type {Element} */\n let result = {type: 'element', tagName, properties, children: []}\n\n if (cell) {\n result.children = state.all(cell)\n state.patch(cell, result)\n result = state.applyData(cell, result)\n }\n\n cells.push(result)\n }\n\n /** @type {Element} */\n const result = {\n type: 'element',\n tagName: 'tr',\n properties: {},\n children: state.wrap(cells, true)\n }\n state.patch(node, result)\n return state.applyData(node, result)\n}\n","/**\n * @typedef {import('hast').Element} HastElement\n * @typedef {import('hast').Text} HastText\n * @typedef {import('mdast').Text} MdastText\n * @typedef {import('../state.js').State} State\n */\n\nimport {trimLines} from 'trim-lines'\n\n/**\n * Turn an mdast `text` node into hast.\n *\n * @param {State} state\n * Info passed around.\n * @param {MdastText} node\n * mdast node.\n * @returns {HastElement | HastText}\n * hast node.\n */\nexport function text(state, node) {\n /** @type {HastText} */\n const result = {type: 'text', value: trimLines(String(node.value))}\n state.patch(node, result)\n return state.applyData(node, result)\n}\n","/**\n * @typedef {import('hast').Element} Element\n * @typedef {import('mdast').ThematicBreak} ThematicBreak\n * @typedef {import('../state.js').State} State\n */\n\n// Make VS Code show references to the above types.\n''\n\n/**\n * Turn an mdast `thematicBreak` node into hast.\n *\n * @param {State} state\n * Info passed around.\n * @param {ThematicBreak} node\n * mdast node.\n * @returns {Element}\n * hast node.\n */\nexport function thematicBreak(state, node) {\n /** @type {Element} */\n const result = {\n type: 'element',\n tagName: 'hr',\n properties: {},\n children: []\n }\n state.patch(node, result)\n return state.applyData(node, result)\n}\n","/**\n * @typedef {import('hast').Element} HastElement\n * @typedef {import('hast').ElementContent} HastElementContent\n * @typedef {import('hast').Nodes} HastNodes\n * @typedef {import('hast').Properties} HastProperties\n * @typedef {import('hast').RootContent} HastRootContent\n * @typedef {import('hast').Text} HastText\n *\n * @typedef {import('mdast').Definition} MdastDefinition\n * @typedef {import('mdast').FootnoteDefinition} MdastFootnoteDefinition\n * @typedef {import('mdast').Nodes} MdastNodes\n * @typedef {import('mdast').Parents} MdastParents\n *\n * @typedef {import('vfile').VFile} VFile\n *\n * @typedef {import('./footer.js').FootnoteBackContentTemplate} FootnoteBackContentTemplate\n * @typedef {import('./footer.js').FootnoteBackLabelTemplate} FootnoteBackLabelTemplate\n */\n\n/**\n * @callback Handler\n * Handle a node.\n * @param {State} state\n * Info passed around.\n * @param {any} node\n * mdast node to handle.\n * @param {MdastParents | undefined} parent\n * Parent of `node`.\n * @returns {Array | HastElementContent | undefined}\n * hast node.\n *\n * @typedef {Partial>} Handlers\n * Handle nodes.\n *\n * @typedef Options\n * Configuration (optional).\n * @property {boolean | null | undefined} [allowDangerousHtml=false]\n * Whether to persist raw HTML in markdown in the hast tree (default:\n * `false`).\n * @property {string | null | undefined} [clobberPrefix='user-content-']\n * Prefix to use before the `id` property on footnotes to prevent them from\n * *clobbering* (default: `'user-content-'`).\n *\n * Pass `''` for trusted markdown and when you are careful with\n * polyfilling.\n * You could pass a different prefix.\n *\n * DOM clobbering is this:\n *\n * ```html\n * \n * \n * ```\n *\n * The above example shows that elements are made available by browsers, by\n * their ID, on the `window` object.\n * This is a security risk because you might be expecting some other variable\n * at that place.\n * It can also break polyfills.\n * Using a prefix solves these problems.\n * @property {VFile | null | undefined} [file]\n * Corresponding virtual file representing the input document (optional).\n * @property {FootnoteBackContentTemplate | string | null | undefined} [footnoteBackContent]\n * Content of the backreference back to references (default: `defaultFootnoteBackContent`).\n *\n * The default value is:\n *\n * ```js\n * function defaultFootnoteBackContent(_, rereferenceIndex) {\n * const result = [{type: 'text', value: '↩'}]\n *\n * if (rereferenceIndex > 1) {\n * result.push({\n * type: 'element',\n * tagName: 'sup',\n * properties: {},\n * children: [{type: 'text', value: String(rereferenceIndex)}]\n * })\n * }\n *\n * return result\n * }\n * ```\n *\n * This content is used in the `a` element of each backreference (the `↩`\n * links).\n * @property {FootnoteBackLabelTemplate | string | null | undefined} [footnoteBackLabel]\n * Label to describe the backreference back to references (default:\n * `defaultFootnoteBackLabel`).\n *\n * The default value is:\n *\n * ```js\n * function defaultFootnoteBackLabel(referenceIndex, rereferenceIndex) {\n * return (\n * 'Back to reference ' +\n * (referenceIndex + 1) +\n * (rereferenceIndex > 1 ? '-' + rereferenceIndex : '')\n * )\n * }\n * ```\n *\n * Change it when the markdown is not in English.\n *\n * This label is used in the `ariaLabel` property on each backreference\n * (the `↩` links).\n * It affects users of assistive technology.\n * @property {string | null | undefined} [footnoteLabel='Footnotes']\n * Textual label to use for the footnotes section (default: `'Footnotes'`).\n *\n * Change it when the markdown is not in English.\n *\n * This label is typically hidden visually (assuming a `sr-only` CSS class\n * is defined that does that) and so affects screen readers only.\n * If you do have such a class, but want to show this section to everyone,\n * pass different properties with the `footnoteLabelProperties` option.\n * @property {HastProperties | null | undefined} [footnoteLabelProperties={className: ['sr-only']}]\n * Properties to use on the footnote label (default: `{className:\n * ['sr-only']}`).\n *\n * Change it to show the label and add other properties.\n *\n * This label is typically hidden visually (assuming an `sr-only` CSS class\n * is defined that does that) and so affects screen readers only.\n * If you do have such a class, but want to show this section to everyone,\n * pass an empty string.\n * You can also add different properties.\n *\n * > **Note**: `id: 'footnote-label'` is always added, because footnote\n * > calls use it with `aria-describedby` to provide an accessible label.\n * @property {string | null | undefined} [footnoteLabelTagName='h2']\n * HTML tag name to use for the footnote label element (default: `'h2'`).\n *\n * Change it to match your document structure.\n *\n * This label is typically hidden visually (assuming a `sr-only` CSS class\n * is defined that does that) and so affects screen readers only.\n * If you do have such a class, but want to show this section to everyone,\n * pass different properties with the `footnoteLabelProperties` option.\n * @property {Handlers | null | undefined} [handlers]\n * Extra handlers for nodes (optional).\n * @property {Array | null | undefined} [passThrough]\n * List of custom mdast node types to pass through (keep) in hast (note that\n * the node itself is passed, but eventual children are transformed)\n * (optional).\n * @property {Handler | null | undefined} [unknownHandler]\n * Handler for all unknown nodes (optional).\n *\n * @typedef State\n * Info passed around.\n * @property {(node: MdastNodes) => Array} all\n * Transform the children of an mdast parent to hast.\n * @property {(from: MdastNodes, to: Type) => HastElement | Type} applyData\n * Honor the `data` of `from`, and generate an element instead of `node`.\n * @property {Map} definitionById\n * Definitions by their identifier.\n * @property {Map} footnoteById\n * Footnote definitions by their identifier.\n * @property {Map} footnoteCounts\n * Counts for how often the same footnote was called.\n * @property {Array} footnoteOrder\n * Identifiers of order when footnote calls first appear in tree order.\n * @property {Handlers} handlers\n * Applied handlers.\n * @property {(node: MdastNodes, parent: MdastParents | undefined) => Array | HastElementContent | undefined} one\n * Transform an mdast node to hast.\n * @property {Options} options\n * Configuration.\n * @property {(from: MdastNodes, node: HastNodes) => undefined} patch\n * Copy a node’s positional info.\n * @property {(nodes: Array, loose?: boolean | undefined) => Array} wrap\n * Wrap `nodes` with line endings between each node, adds initial/final line endings when `loose`.\n */\n\nimport structuredClone from '@ungap/structured-clone'\nimport {visit} from 'unist-util-visit'\nimport {position} from 'unist-util-position'\nimport {handlers as defaultHandlers} from './handlers/index.js'\n\nconst own = {}.hasOwnProperty\n\n/** @type {Options} */\nconst emptyOptions = {}\n\n/**\n * Create `state` from an mdast tree.\n *\n * @param {MdastNodes} tree\n * mdast node to transform.\n * @param {Options | null | undefined} [options]\n * Configuration (optional).\n * @returns {State}\n * `state` function.\n */\nexport function createState(tree, options) {\n const settings = options || emptyOptions\n /** @type {Map} */\n const definitionById = new Map()\n /** @type {Map} */\n const footnoteById = new Map()\n /** @type {Map} */\n const footnoteCounts = new Map()\n /** @type {Handlers} */\n // @ts-expect-error: the root handler returns a root.\n // Hard to type.\n const handlers = {...defaultHandlers, ...settings.handlers}\n\n /** @type {State} */\n const state = {\n all,\n applyData,\n definitionById,\n footnoteById,\n footnoteCounts,\n footnoteOrder: [],\n handlers,\n one,\n options: settings,\n patch,\n wrap\n }\n\n visit(tree, function (node) {\n if (node.type === 'definition' || node.type === 'footnoteDefinition') {\n const map = node.type === 'definition' ? definitionById : footnoteById\n const id = String(node.identifier).toUpperCase()\n\n // Mimick CM behavior of link definitions.\n // See: .\n if (!map.has(id)) {\n // @ts-expect-error: node type matches map.\n map.set(id, node)\n }\n }\n })\n\n return state\n\n /**\n * Transform an mdast node into a hast node.\n *\n * @param {MdastNodes} node\n * mdast node.\n * @param {MdastParents | undefined} [parent]\n * Parent of `node`.\n * @returns {Array | HastElementContent | undefined}\n * Resulting hast node.\n */\n function one(node, parent) {\n const type = node.type\n const handle = state.handlers[type]\n\n if (own.call(state.handlers, type) && handle) {\n return handle(state, node, parent)\n }\n\n if (state.options.passThrough && state.options.passThrough.includes(type)) {\n if ('children' in node) {\n const {children, ...shallow} = node\n const result = structuredClone(shallow)\n // @ts-expect-error: TS doesn’t understand…\n result.children = state.all(node)\n // @ts-expect-error: TS doesn’t understand…\n return result\n }\n\n // @ts-expect-error: it’s custom.\n return structuredClone(node)\n }\n\n const unknown = state.options.unknownHandler || defaultUnknownHandler\n\n return unknown(state, node, parent)\n }\n\n /**\n * Transform the children of an mdast node into hast nodes.\n *\n * @param {MdastNodes} parent\n * mdast node to compile\n * @returns {Array}\n * Resulting hast nodes.\n */\n function all(parent) {\n /** @type {Array} */\n const values = []\n\n if ('children' in parent) {\n const nodes = parent.children\n let index = -1\n while (++index < nodes.length) {\n const result = state.one(nodes[index], parent)\n\n // To do: see if we van clean this? Can we merge texts?\n if (result) {\n if (index && nodes[index - 1].type === 'break') {\n if (!Array.isArray(result) && result.type === 'text') {\n result.value = trimMarkdownSpaceStart(result.value)\n }\n\n if (!Array.isArray(result) && result.type === 'element') {\n const head = result.children[0]\n\n if (head && head.type === 'text') {\n head.value = trimMarkdownSpaceStart(head.value)\n }\n }\n }\n\n if (Array.isArray(result)) {\n values.push(...result)\n } else {\n values.push(result)\n }\n }\n }\n }\n\n return values\n }\n}\n\n/**\n * Copy a node’s positional info.\n *\n * @param {MdastNodes} from\n * mdast node to copy from.\n * @param {HastNodes} to\n * hast node to copy into.\n * @returns {undefined}\n * Nothing.\n */\nfunction patch(from, to) {\n if (from.position) to.position = position(from)\n}\n\n/**\n * Honor the `data` of `from` and maybe generate an element instead of `to`.\n *\n * @template {HastNodes} Type\n * Node type.\n * @param {MdastNodes} from\n * mdast node to use data from.\n * @param {Type} to\n * hast node to change.\n * @returns {HastElement | Type}\n * Nothing.\n */\nfunction applyData(from, to) {\n /** @type {HastElement | Type} */\n let result = to\n\n // Handle `data.hName`, `data.hProperties, `data.hChildren`.\n if (from && from.data) {\n const hName = from.data.hName\n const hChildren = from.data.hChildren\n const hProperties = from.data.hProperties\n\n if (typeof hName === 'string') {\n // Transforming the node resulted in an element with a different name\n // than wanted:\n if (result.type === 'element') {\n result.tagName = hName\n }\n // Transforming the node resulted in a non-element, which happens for\n // raw, text, and root nodes (unless custom handlers are passed).\n // The intent of `hName` is to create an element, but likely also to keep\n // the content around (otherwise: pass `hChildren`).\n else {\n /** @type {Array} */\n // @ts-expect-error: assume no doctypes in `root`.\n const children = 'children' in result ? result.children : [result]\n result = {type: 'element', tagName: hName, properties: {}, children}\n }\n }\n\n if (result.type === 'element' && hProperties) {\n Object.assign(result.properties, structuredClone(hProperties))\n }\n\n if (\n 'children' in result &&\n result.children &&\n hChildren !== null &&\n hChildren !== undefined\n ) {\n result.children = hChildren\n }\n }\n\n return result\n}\n\n/**\n * Transform an unknown node.\n *\n * @param {State} state\n * Info passed around.\n * @param {MdastNodes} node\n * Unknown mdast node.\n * @returns {HastElement | HastText}\n * Resulting hast node.\n */\nfunction defaultUnknownHandler(state, node) {\n const data = node.data || {}\n /** @type {HastElement | HastText} */\n const result =\n 'value' in node &&\n !(own.call(data, 'hProperties') || own.call(data, 'hChildren'))\n ? {type: 'text', value: node.value}\n : {\n type: 'element',\n tagName: 'div',\n properties: {},\n children: state.all(node)\n }\n\n state.patch(node, result)\n return state.applyData(node, result)\n}\n\n/**\n * Wrap `nodes` with line endings between each node.\n *\n * @template {HastRootContent} Type\n * Node type.\n * @param {Array} nodes\n * List of nodes to wrap.\n * @param {boolean | undefined} [loose=false]\n * Whether to add line endings at start and end (default: `false`).\n * @returns {Array}\n * Wrapped nodes.\n */\nexport function wrap(nodes, loose) {\n /** @type {Array\n Calendar\n \n
\n\n \n Docker Hub\n \n
\n \n Slack\n \n
\n \n Github\n \n
\n \n Twitter */}\n \n
\n \n Youtube\n \n
\n \n Linkedin\n \n
\n