} */\n let marker;\n return start;\n\n /**\n * Start of code.\n *\n * ```markdown\n * > | ~~~js\n * ^\n * | alert(1)\n * | ~~~\n * ```\n *\n * @type {State}\n */\n function start(code) {\n // To do: parse whitespace like `markdown-rs`.\n return beforeSequenceOpen(code);\n }\n\n /**\n * In opening fence, after prefix, at sequence.\n *\n * ```markdown\n * > | ~~~js\n * ^\n * | alert(1)\n * | ~~~\n * ```\n *\n * @type {State}\n */\n function beforeSequenceOpen(code) {\n const tail = self.events[self.events.length - 1];\n initialPrefix = tail && tail[1].type === \"linePrefix\" ? tail[2].sliceSerialize(tail[1], true).length : 0;\n marker = code;\n effects.enter(\"codeFenced\");\n effects.enter(\"codeFencedFence\");\n effects.enter(\"codeFencedFenceSequence\");\n return sequenceOpen(code);\n }\n\n /**\n * In opening fence sequence.\n *\n * ```markdown\n * > | ~~~js\n * ^\n * | alert(1)\n * | ~~~\n * ```\n *\n * @type {State}\n */\n function sequenceOpen(code) {\n if (code === marker) {\n sizeOpen++;\n effects.consume(code);\n return sequenceOpen;\n }\n if (sizeOpen < 3) {\n return nok(code);\n }\n effects.exit(\"codeFencedFenceSequence\");\n return markdownSpace(code) ? factorySpace(effects, infoBefore, \"whitespace\")(code) : infoBefore(code);\n }\n\n /**\n * In opening fence, after the sequence (and optional whitespace), before info.\n *\n * ```markdown\n * > | ~~~js\n * ^\n * | alert(1)\n * | ~~~\n * ```\n *\n * @type {State}\n */\n function infoBefore(code) {\n if (code === null || markdownLineEnding(code)) {\n effects.exit(\"codeFencedFence\");\n return self.interrupt ? ok(code) : effects.check(nonLazyContinuation, atNonLazyBreak, after)(code);\n }\n effects.enter(\"codeFencedFenceInfo\");\n effects.enter(\"chunkString\", {\n contentType: \"string\"\n });\n return info(code);\n }\n\n /**\n * In info.\n *\n * ```markdown\n * > | ~~~js\n * ^\n * | alert(1)\n * | ~~~\n * ```\n *\n * @type {State}\n */\n function info(code) {\n if (code === null || markdownLineEnding(code)) {\n effects.exit(\"chunkString\");\n effects.exit(\"codeFencedFenceInfo\");\n return infoBefore(code);\n }\n if (markdownSpace(code)) {\n effects.exit(\"chunkString\");\n effects.exit(\"codeFencedFenceInfo\");\n return factorySpace(effects, metaBefore, \"whitespace\")(code);\n }\n if (code === 96 && code === marker) {\n return nok(code);\n }\n effects.consume(code);\n return info;\n }\n\n /**\n * In opening fence, after info and whitespace, before meta.\n *\n * ```markdown\n * > | ~~~js eval\n * ^\n * | alert(1)\n * | ~~~\n * ```\n *\n * @type {State}\n */\n function metaBefore(code) {\n if (code === null || markdownLineEnding(code)) {\n return infoBefore(code);\n }\n effects.enter(\"codeFencedFenceMeta\");\n effects.enter(\"chunkString\", {\n contentType: \"string\"\n });\n return meta(code);\n }\n\n /**\n * In meta.\n *\n * ```markdown\n * > | ~~~js eval\n * ^\n * | alert(1)\n * | ~~~\n * ```\n *\n * @type {State}\n */\n function meta(code) {\n if (code === null || markdownLineEnding(code)) {\n effects.exit(\"chunkString\");\n effects.exit(\"codeFencedFenceMeta\");\n return infoBefore(code);\n }\n if (code === 96 && code === marker) {\n return nok(code);\n }\n effects.consume(code);\n return meta;\n }\n\n /**\n * At eol/eof in code, before a non-lazy closing fence or content.\n *\n * ```markdown\n * > | ~~~js\n * ^\n * > | alert(1)\n * ^\n * | ~~~\n * ```\n *\n * @type {State}\n */\n function atNonLazyBreak(code) {\n return effects.attempt(closeStart, after, contentBefore)(code);\n }\n\n /**\n * Before code content, not a closing fence, at eol.\n *\n * ```markdown\n * | ~~~js\n * > | alert(1)\n * ^\n * | ~~~\n * ```\n *\n * @type {State}\n */\n function contentBefore(code) {\n effects.enter(\"lineEnding\");\n effects.consume(code);\n effects.exit(\"lineEnding\");\n return contentStart;\n }\n\n /**\n * Before code content, not a closing fence.\n *\n * ```markdown\n * | ~~~js\n * > | alert(1)\n * ^\n * | ~~~\n * ```\n *\n * @type {State}\n */\n function contentStart(code) {\n return initialPrefix > 0 && markdownSpace(code) ? factorySpace(effects, beforeContentChunk, \"linePrefix\", initialPrefix + 1)(code) : beforeContentChunk(code);\n }\n\n /**\n * Before code content, after optional prefix.\n *\n * ```markdown\n * | ~~~js\n * > | alert(1)\n * ^\n * | ~~~\n * ```\n *\n * @type {State}\n */\n function beforeContentChunk(code) {\n if (code === null || markdownLineEnding(code)) {\n return effects.check(nonLazyContinuation, atNonLazyBreak, after)(code);\n }\n effects.enter(\"codeFlowValue\");\n return contentChunk(code);\n }\n\n /**\n * In code content.\n *\n * ```markdown\n * | ~~~js\n * > | alert(1)\n * ^^^^^^^^\n * | ~~~\n * ```\n *\n * @type {State}\n */\n function contentChunk(code) {\n if (code === null || markdownLineEnding(code)) {\n effects.exit(\"codeFlowValue\");\n return beforeContentChunk(code);\n }\n effects.consume(code);\n return contentChunk;\n }\n\n /**\n * After code.\n *\n * ```markdown\n * | ~~~js\n * | alert(1)\n * > | ~~~\n * ^\n * ```\n *\n * @type {State}\n */\n function after(code) {\n effects.exit(\"codeFenced\");\n return ok(code);\n }\n\n /**\n * @this {TokenizeContext}\n * Context.\n * @type {Tokenizer}\n */\n function tokenizeCloseStart(effects, ok, nok) {\n let size = 0;\n return startBefore;\n\n /**\n *\n *\n * @type {State}\n */\n function startBefore(code) {\n effects.enter(\"lineEnding\");\n effects.consume(code);\n effects.exit(\"lineEnding\");\n return start;\n }\n\n /**\n * Before closing fence, at optional whitespace.\n *\n * ```markdown\n * | ~~~js\n * | alert(1)\n * > | ~~~\n * ^\n * ```\n *\n * @type {State}\n */\n function start(code) {\n // Always populated by defaults.\n\n // To do: `enter` here or in next state?\n effects.enter(\"codeFencedFence\");\n return markdownSpace(code) ? factorySpace(effects, beforeSequenceClose, \"linePrefix\", self.parser.constructs.disable.null.includes('codeIndented') ? undefined : 4)(code) : beforeSequenceClose(code);\n }\n\n /**\n * In closing fence, after optional whitespace, at sequence.\n *\n * ```markdown\n * | ~~~js\n * | alert(1)\n * > | ~~~\n * ^\n * ```\n *\n * @type {State}\n */\n function beforeSequenceClose(code) {\n if (code === marker) {\n effects.enter(\"codeFencedFenceSequence\");\n return sequenceClose(code);\n }\n return nok(code);\n }\n\n /**\n * In closing fence sequence.\n *\n * ```markdown\n * | ~~~js\n * | alert(1)\n * > | ~~~\n * ^\n * ```\n *\n * @type {State}\n */\n function sequenceClose(code) {\n if (code === marker) {\n size++;\n effects.consume(code);\n return sequenceClose;\n }\n if (size >= sizeOpen) {\n effects.exit(\"codeFencedFenceSequence\");\n return markdownSpace(code) ? factorySpace(effects, sequenceCloseAfter, \"whitespace\")(code) : sequenceCloseAfter(code);\n }\n return nok(code);\n }\n\n /**\n * After closing fence sequence, after optional whitespace.\n *\n * ```markdown\n * | ~~~js\n * | alert(1)\n * > | ~~~\n * ^\n * ```\n *\n * @type {State}\n */\n function sequenceCloseAfter(code) {\n if (code === null || markdownLineEnding(code)) {\n effects.exit(\"codeFencedFence\");\n return ok(code);\n }\n return nok(code);\n }\n }\n}\n\n/**\n * @this {TokenizeContext}\n * Context.\n * @type {Tokenizer}\n */\nfunction tokenizeNonLazyContinuation(effects, ok, nok) {\n const self = this;\n return start;\n\n /**\n *\n *\n * @type {State}\n */\n function start(code) {\n if (code === null) {\n return nok(code);\n }\n effects.enter(\"lineEnding\");\n effects.consume(code);\n effects.exit(\"lineEnding\");\n return lineStart;\n }\n\n /**\n *\n *\n * @type {State}\n */\n function lineStart(code) {\n return self.parser.lazy[self.now().line] ? nok(code) : ok(code);\n }\n}","/**\n * @import {\n * Code,\n * Construct,\n * State,\n * TokenizeContext,\n * Tokenizer\n * } from 'micromark-util-types'\n */\n\nimport { decodeNamedCharacterReference } from 'decode-named-character-reference';\nimport { asciiAlphanumeric, asciiDigit, asciiHexDigit } from 'micromark-util-character';\n/** @type {Construct} */\nexport const characterReference = {\n name: 'characterReference',\n tokenize: tokenizeCharacterReference\n};\n\n/**\n * @this {TokenizeContext}\n * Context.\n * @type {Tokenizer}\n */\nfunction tokenizeCharacterReference(effects, ok, nok) {\n const self = this;\n let size = 0;\n /** @type {number} */\n let max;\n /** @type {(code: Code) => boolean} */\n let test;\n return start;\n\n /**\n * Start of character reference.\n *\n * ```markdown\n * > | a&b\n * ^\n * > | a{b\n * ^\n * > | a b\n * ^\n * ```\n *\n * @type {State}\n */\n function start(code) {\n effects.enter(\"characterReference\");\n effects.enter(\"characterReferenceMarker\");\n effects.consume(code);\n effects.exit(\"characterReferenceMarker\");\n return open;\n }\n\n /**\n * After `&`, at `#` for numeric references or alphanumeric for named\n * references.\n *\n * ```markdown\n * > | a&b\n * ^\n * > | a{b\n * ^\n * > | a b\n * ^\n * ```\n *\n * @type {State}\n */\n function open(code) {\n if (code === 35) {\n effects.enter(\"characterReferenceMarkerNumeric\");\n effects.consume(code);\n effects.exit(\"characterReferenceMarkerNumeric\");\n return numeric;\n }\n effects.enter(\"characterReferenceValue\");\n max = 31;\n test = asciiAlphanumeric;\n return value(code);\n }\n\n /**\n * After `#`, at `x` for hexadecimals or digit for decimals.\n *\n * ```markdown\n * > | a{b\n * ^\n * > | a b\n * ^\n * ```\n *\n * @type {State}\n */\n function numeric(code) {\n if (code === 88 || code === 120) {\n effects.enter(\"characterReferenceMarkerHexadecimal\");\n effects.consume(code);\n effects.exit(\"characterReferenceMarkerHexadecimal\");\n effects.enter(\"characterReferenceValue\");\n max = 6;\n test = asciiHexDigit;\n return value;\n }\n effects.enter(\"characterReferenceValue\");\n max = 7;\n test = asciiDigit;\n return value(code);\n }\n\n /**\n * After markers (`&#x`, `&#`, or `&`), in value, before `;`.\n *\n * The character reference kind defines what and how many characters are\n * allowed.\n *\n * ```markdown\n * > | a&b\n * ^^^\n * > | a{b\n * ^^^\n * > | a b\n * ^\n * ```\n *\n * @type {State}\n */\n function value(code) {\n if (code === 59 && size) {\n const token = effects.exit(\"characterReferenceValue\");\n if (test === asciiAlphanumeric && !decodeNamedCharacterReference(self.sliceSerialize(token))) {\n return nok(code);\n }\n\n // To do: `markdown-rs` uses a different name:\n // `CharacterReferenceMarkerSemi`.\n effects.enter(\"characterReferenceMarker\");\n effects.consume(code);\n effects.exit(\"characterReferenceMarker\");\n effects.exit(\"characterReference\");\n return ok;\n }\n if (test(code) && size++ < max) {\n effects.consume(code);\n return value;\n }\n return nok(code);\n }\n}","/**\n * @import {\n * Construct,\n * State,\n * TokenizeContext,\n * Tokenizer\n * } from 'micromark-util-types'\n */\n\nimport { asciiPunctuation } from 'micromark-util-character';\n/** @type {Construct} */\nexport const characterEscape = {\n name: 'characterEscape',\n tokenize: tokenizeCharacterEscape\n};\n\n/**\n * @this {TokenizeContext}\n * Context.\n * @type {Tokenizer}\n */\nfunction tokenizeCharacterEscape(effects, ok, nok) {\n return start;\n\n /**\n * Start of character escape.\n *\n * ```markdown\n * > | a\\*b\n * ^\n * ```\n *\n * @type {State}\n */\n function start(code) {\n effects.enter(\"characterEscape\");\n effects.enter(\"escapeMarker\");\n effects.consume(code);\n effects.exit(\"escapeMarker\");\n return inside;\n }\n\n /**\n * After `\\`, at punctuation.\n *\n * ```markdown\n * > | a\\*b\n * ^\n * ```\n *\n * @type {State}\n */\n function inside(code) {\n // ASCII punctuation.\n if (asciiPunctuation(code)) {\n effects.enter(\"characterEscapeValue\");\n effects.consume(code);\n effects.exit(\"characterEscapeValue\");\n effects.exit(\"characterEscape\");\n return ok;\n }\n return nok(code);\n }\n}","/**\n * @import {\n * Construct,\n * State,\n * TokenizeContext,\n * Tokenizer\n * } from 'micromark-util-types'\n */\n\nimport { factorySpace } from 'micromark-factory-space';\nimport { markdownLineEnding } from 'micromark-util-character';\n/** @type {Construct} */\nexport const lineEnding = {\n name: 'lineEnding',\n tokenize: tokenizeLineEnding\n};\n\n/**\n * @this {TokenizeContext}\n * Context.\n * @type {Tokenizer}\n */\nfunction tokenizeLineEnding(effects, ok) {\n return start;\n\n /** @type {State} */\n function start(code) {\n effects.enter(\"lineEnding\");\n effects.consume(code);\n effects.exit(\"lineEnding\");\n return factorySpace(effects, ok, \"linePrefix\");\n }\n}","/**\n * @import {Event, Resolver, TokenizeContext} from 'micromark-util-types'\n */\n\n/**\n * Call all `resolveAll`s.\n *\n * @param {ReadonlyArray<{resolveAll?: Resolver | undefined}>} constructs\n * List of constructs, optionally with `resolveAll`s.\n * @param {Array} events\n * List of events.\n * @param {TokenizeContext} context\n * Context used by `tokenize`.\n * @returns {Array}\n * Changed events.\n */\nexport function resolveAll(constructs, events, context) {\n /** @type {Array} */\n const called = []\n let index = -1\n\n while (++index < constructs.length) {\n const resolve = constructs[index].resolveAll\n\n if (resolve && !called.includes(resolve)) {\n events = resolve(events, context)\n called.push(resolve)\n }\n }\n\n return events\n}\n","/**\n * @import {\n * Construct,\n * Event,\n * Resolver,\n * State,\n * TokenizeContext,\n * Tokenizer,\n * Token\n * } from 'micromark-util-types'\n */\n\nimport { factoryDestination } from 'micromark-factory-destination';\nimport { factoryLabel } from 'micromark-factory-label';\nimport { factoryTitle } from 'micromark-factory-title';\nimport { factoryWhitespace } from 'micromark-factory-whitespace';\nimport { markdownLineEndingOrSpace } from 'micromark-util-character';\nimport { push, splice } from 'micromark-util-chunked';\nimport { normalizeIdentifier } from 'micromark-util-normalize-identifier';\nimport { resolveAll } from 'micromark-util-resolve-all';\n/** @type {Construct} */\nexport const labelEnd = {\n name: 'labelEnd',\n resolveAll: resolveAllLabelEnd,\n resolveTo: resolveToLabelEnd,\n tokenize: tokenizeLabelEnd\n};\n\n/** @type {Construct} */\nconst resourceConstruct = {\n tokenize: tokenizeResource\n};\n/** @type {Construct} */\nconst referenceFullConstruct = {\n tokenize: tokenizeReferenceFull\n};\n/** @type {Construct} */\nconst referenceCollapsedConstruct = {\n tokenize: tokenizeReferenceCollapsed\n};\n\n/** @type {Resolver} */\nfunction resolveAllLabelEnd(events) {\n let index = -1;\n /** @type {Array} */\n const newEvents = [];\n while (++index < events.length) {\n const token = events[index][1];\n newEvents.push(events[index]);\n if (token.type === \"labelImage\" || token.type === \"labelLink\" || token.type === \"labelEnd\") {\n // Remove the marker.\n const offset = token.type === \"labelImage\" ? 4 : 2;\n token.type = \"data\";\n index += offset;\n }\n }\n\n // If the events are equal, we don't have to copy newEvents to events\n if (events.length !== newEvents.length) {\n splice(events, 0, events.length, newEvents);\n }\n return events;\n}\n\n/** @type {Resolver} */\nfunction resolveToLabelEnd(events, context) {\n let index = events.length;\n let offset = 0;\n /** @type {Token} */\n let token;\n /** @type {number | undefined} */\n let open;\n /** @type {number | undefined} */\n let close;\n /** @type {Array} */\n let media;\n\n // Find an opening.\n while (index--) {\n token = events[index][1];\n if (open) {\n // If we see another link, or inactive link label, we’ve been here before.\n if (token.type === \"link\" || token.type === \"labelLink\" && token._inactive) {\n break;\n }\n\n // Mark other link openings as inactive, as we can’t have links in\n // links.\n if (events[index][0] === 'enter' && token.type === \"labelLink\") {\n token._inactive = true;\n }\n } else if (close) {\n if (events[index][0] === 'enter' && (token.type === \"labelImage\" || token.type === \"labelLink\") && !token._balanced) {\n open = index;\n if (token.type !== \"labelLink\") {\n offset = 2;\n break;\n }\n }\n } else if (token.type === \"labelEnd\") {\n close = index;\n }\n }\n const group = {\n type: events[open][1].type === \"labelLink\" ? \"link\" : \"image\",\n start: {\n ...events[open][1].start\n },\n end: {\n ...events[events.length - 1][1].end\n }\n };\n const label = {\n type: \"label\",\n start: {\n ...events[open][1].start\n },\n end: {\n ...events[close][1].end\n }\n };\n const text = {\n type: \"labelText\",\n start: {\n ...events[open + offset + 2][1].end\n },\n end: {\n ...events[close - 2][1].start\n }\n };\n media = [['enter', group, context], ['enter', label, context]];\n\n // Opening marker.\n media = push(media, events.slice(open + 1, open + offset + 3));\n\n // Text open.\n media = push(media, [['enter', text, context]]);\n\n // Always populated by defaults.\n\n // Between.\n media = push(media, resolveAll(context.parser.constructs.insideSpan.null, events.slice(open + offset + 4, close - 3), context));\n\n // Text close, marker close, label close.\n media = push(media, [['exit', text, context], events[close - 2], events[close - 1], ['exit', label, context]]);\n\n // Reference, resource, or so.\n media = push(media, events.slice(close + 1));\n\n // Media close.\n media = push(media, [['exit', group, context]]);\n splice(events, open, events.length, media);\n return events;\n}\n\n/**\n * @this {TokenizeContext}\n * Context.\n * @type {Tokenizer}\n */\nfunction tokenizeLabelEnd(effects, ok, nok) {\n const self = this;\n let index = self.events.length;\n /** @type {Token} */\n let labelStart;\n /** @type {boolean} */\n let defined;\n\n // Find an opening.\n while (index--) {\n if ((self.events[index][1].type === \"labelImage\" || self.events[index][1].type === \"labelLink\") && !self.events[index][1]._balanced) {\n labelStart = self.events[index][1];\n break;\n }\n }\n return start;\n\n /**\n * Start of label end.\n *\n * ```markdown\n * > | [a](b) c\n * ^\n * > | [a][b] c\n * ^\n * > | [a][] b\n * ^\n * > | [a] b\n * ```\n *\n * @type {State}\n */\n function start(code) {\n // If there is not an okay opening.\n if (!labelStart) {\n return nok(code);\n }\n\n // If the corresponding label (link) start is marked as inactive,\n // it means we’d be wrapping a link, like this:\n //\n // ```markdown\n // > | a [b [c](d) e](f) g.\n // ^\n // ```\n //\n // We can’t have that, so it’s just balanced brackets.\n if (labelStart._inactive) {\n return labelEndNok(code);\n }\n defined = self.parser.defined.includes(normalizeIdentifier(self.sliceSerialize({\n start: labelStart.end,\n end: self.now()\n })));\n effects.enter(\"labelEnd\");\n effects.enter(\"labelMarker\");\n effects.consume(code);\n effects.exit(\"labelMarker\");\n effects.exit(\"labelEnd\");\n return after;\n }\n\n /**\n * After `]`.\n *\n * ```markdown\n * > | [a](b) c\n * ^\n * > | [a][b] c\n * ^\n * > | [a][] b\n * ^\n * > | [a] b\n * ^\n * ```\n *\n * @type {State}\n */\n function after(code) {\n // Note: `markdown-rs` also parses GFM footnotes here, which for us is in\n // an extension.\n\n // Resource (`[asd](fgh)`)?\n if (code === 40) {\n return effects.attempt(resourceConstruct, labelEndOk, defined ? labelEndOk : labelEndNok)(code);\n }\n\n // Full (`[asd][fgh]`) or collapsed (`[asd][]`) reference?\n if (code === 91) {\n return effects.attempt(referenceFullConstruct, labelEndOk, defined ? referenceNotFull : labelEndNok)(code);\n }\n\n // Shortcut (`[asd]`) reference?\n return defined ? labelEndOk(code) : labelEndNok(code);\n }\n\n /**\n * After `]`, at `[`, but not at a full reference.\n *\n * > 👉 **Note**: we only get here if the label is defined.\n *\n * ```markdown\n * > | [a][] b\n * ^\n * > | [a] b\n * ^\n * ```\n *\n * @type {State}\n */\n function referenceNotFull(code) {\n return effects.attempt(referenceCollapsedConstruct, labelEndOk, labelEndNok)(code);\n }\n\n /**\n * Done, we found something.\n *\n * ```markdown\n * > | [a](b) c\n * ^\n * > | [a][b] c\n * ^\n * > | [a][] b\n * ^\n * > | [a] b\n * ^\n * ```\n *\n * @type {State}\n */\n function labelEndOk(code) {\n // Note: `markdown-rs` does a bunch of stuff here.\n return ok(code);\n }\n\n /**\n * Done, it’s nothing.\n *\n * There was an okay opening, but we didn’t match anything.\n *\n * ```markdown\n * > | [a](b c\n * ^\n * > | [a][b c\n * ^\n * > | [a] b\n * ^\n * ```\n *\n * @type {State}\n */\n function labelEndNok(code) {\n labelStart._balanced = true;\n return nok(code);\n }\n}\n\n/**\n * @this {TokenizeContext}\n * Context.\n * @type {Tokenizer}\n */\nfunction tokenizeResource(effects, ok, nok) {\n return resourceStart;\n\n /**\n * At a resource.\n *\n * ```markdown\n * > | [a](b) c\n * ^\n * ```\n *\n * @type {State}\n */\n function resourceStart(code) {\n effects.enter(\"resource\");\n effects.enter(\"resourceMarker\");\n effects.consume(code);\n effects.exit(\"resourceMarker\");\n return resourceBefore;\n }\n\n /**\n * In resource, after `(`, at optional whitespace.\n *\n * ```markdown\n * > | [a](b) c\n * ^\n * ```\n *\n * @type {State}\n */\n function resourceBefore(code) {\n return markdownLineEndingOrSpace(code) ? factoryWhitespace(effects, resourceOpen)(code) : resourceOpen(code);\n }\n\n /**\n * In resource, after optional whitespace, at `)` or a destination.\n *\n * ```markdown\n * > | [a](b) c\n * ^\n * ```\n *\n * @type {State}\n */\n function resourceOpen(code) {\n if (code === 41) {\n return resourceEnd(code);\n }\n return factoryDestination(effects, resourceDestinationAfter, resourceDestinationMissing, \"resourceDestination\", \"resourceDestinationLiteral\", \"resourceDestinationLiteralMarker\", \"resourceDestinationRaw\", \"resourceDestinationString\", 32)(code);\n }\n\n /**\n * In resource, after destination, at optional whitespace.\n *\n * ```markdown\n * > | [a](b) c\n * ^\n * ```\n *\n * @type {State}\n */\n function resourceDestinationAfter(code) {\n return markdownLineEndingOrSpace(code) ? factoryWhitespace(effects, resourceBetween)(code) : resourceEnd(code);\n }\n\n /**\n * At invalid destination.\n *\n * ```markdown\n * > | [a](<<) b\n * ^\n * ```\n *\n * @type {State}\n */\n function resourceDestinationMissing(code) {\n return nok(code);\n }\n\n /**\n * In resource, after destination and whitespace, at `(` or title.\n *\n * ```markdown\n * > | [a](b ) c\n * ^\n * ```\n *\n * @type {State}\n */\n function resourceBetween(code) {\n if (code === 34 || code === 39 || code === 40) {\n return factoryTitle(effects, resourceTitleAfter, nok, \"resourceTitle\", \"resourceTitleMarker\", \"resourceTitleString\")(code);\n }\n return resourceEnd(code);\n }\n\n /**\n * In resource, after title, at optional whitespace.\n *\n * ```markdown\n * > | [a](b \"c\") d\n * ^\n * ```\n *\n * @type {State}\n */\n function resourceTitleAfter(code) {\n return markdownLineEndingOrSpace(code) ? factoryWhitespace(effects, resourceEnd)(code) : resourceEnd(code);\n }\n\n /**\n * In resource, at `)`.\n *\n * ```markdown\n * > | [a](b) d\n * ^\n * ```\n *\n * @type {State}\n */\n function resourceEnd(code) {\n if (code === 41) {\n effects.enter(\"resourceMarker\");\n effects.consume(code);\n effects.exit(\"resourceMarker\");\n effects.exit(\"resource\");\n return ok;\n }\n return nok(code);\n }\n}\n\n/**\n * @this {TokenizeContext}\n * Context.\n * @type {Tokenizer}\n */\nfunction tokenizeReferenceFull(effects, ok, nok) {\n const self = this;\n return referenceFull;\n\n /**\n * In a reference (full), at the `[`.\n *\n * ```markdown\n * > | [a][b] d\n * ^\n * ```\n *\n * @type {State}\n */\n function referenceFull(code) {\n return factoryLabel.call(self, effects, referenceFullAfter, referenceFullMissing, \"reference\", \"referenceMarker\", \"referenceString\")(code);\n }\n\n /**\n * In a reference (full), after `]`.\n *\n * ```markdown\n * > | [a][b] d\n * ^\n * ```\n *\n * @type {State}\n */\n function referenceFullAfter(code) {\n return self.parser.defined.includes(normalizeIdentifier(self.sliceSerialize(self.events[self.events.length - 1][1]).slice(1, -1))) ? ok(code) : nok(code);\n }\n\n /**\n * In reference (full) that was missing.\n *\n * ```markdown\n * > | [a][b d\n * ^\n * ```\n *\n * @type {State}\n */\n function referenceFullMissing(code) {\n return nok(code);\n }\n}\n\n/**\n * @this {TokenizeContext}\n * Context.\n * @type {Tokenizer}\n */\nfunction tokenizeReferenceCollapsed(effects, ok, nok) {\n return referenceCollapsedStart;\n\n /**\n * In reference (collapsed), at `[`.\n *\n * > 👉 **Note**: we only get here if the label is defined.\n *\n * ```markdown\n * > | [a][] d\n * ^\n * ```\n *\n * @type {State}\n */\n function referenceCollapsedStart(code) {\n // We only attempt a collapsed label if there’s a `[`.\n\n effects.enter(\"reference\");\n effects.enter(\"referenceMarker\");\n effects.consume(code);\n effects.exit(\"referenceMarker\");\n return referenceCollapsedOpen;\n }\n\n /**\n * In reference (collapsed), at `]`.\n *\n * > 👉 **Note**: we only get here if the label is defined.\n *\n * ```markdown\n * > | [a][] d\n * ^\n * ```\n *\n * @type {State}\n */\n function referenceCollapsedOpen(code) {\n if (code === 93) {\n effects.enter(\"referenceMarker\");\n effects.consume(code);\n effects.exit(\"referenceMarker\");\n effects.exit(\"reference\");\n return ok;\n }\n return nok(code);\n }\n}","/**\n * @import {\n * Construct,\n * State,\n * TokenizeContext,\n * Tokenizer\n * } from 'micromark-util-types'\n */\n\nimport { labelEnd } from './label-end.js';\n\n/** @type {Construct} */\nexport const labelStartImage = {\n name: 'labelStartImage',\n resolveAll: labelEnd.resolveAll,\n tokenize: tokenizeLabelStartImage\n};\n\n/**\n * @this {TokenizeContext}\n * Context.\n * @type {Tokenizer}\n */\nfunction tokenizeLabelStartImage(effects, ok, nok) {\n const self = this;\n return start;\n\n /**\n * Start of label (image) start.\n *\n * ```markdown\n * > | a ![b] c\n * ^\n * ```\n *\n * @type {State}\n */\n function start(code) {\n effects.enter(\"labelImage\");\n effects.enter(\"labelImageMarker\");\n effects.consume(code);\n effects.exit(\"labelImageMarker\");\n return open;\n }\n\n /**\n * After `!`, at `[`.\n *\n * ```markdown\n * > | a ![b] c\n * ^\n * ```\n *\n * @type {State}\n */\n function open(code) {\n if (code === 91) {\n effects.enter(\"labelMarker\");\n effects.consume(code);\n effects.exit(\"labelMarker\");\n effects.exit(\"labelImage\");\n return after;\n }\n return nok(code);\n }\n\n /**\n * After `![`.\n *\n * ```markdown\n * > | a ![b] c\n * ^\n * ```\n *\n * This is needed in because, when GFM footnotes are enabled, images never\n * form when started with a `^`.\n * Instead, links form:\n *\n * ```markdown\n * \n *\n * ![^a][b]\n *\n * [b]: c\n * ```\n *\n * ```html\n * !^a
\n * !^a
\n * ```\n *\n * @type {State}\n */\n function after(code) {\n // To do: use a new field to do this, this is still needed for\n // `micromark-extension-gfm-footnote`, but the `label-start-link`\n // behavior isn’t.\n // Hidden footnotes hook.\n /* c8 ignore next 3 */\n return code === 94 && '_hiddenFootnoteSupport' in self.parser.constructs ? nok(code) : ok(code);\n }\n}","/**\n * @import {Code} from 'micromark-util-types'\n */\n\nimport { markdownLineEndingOrSpace, unicodePunctuation, unicodeWhitespace } from 'micromark-util-character';\n/**\n * Classify whether a code represents whitespace, punctuation, or something\n * else.\n *\n * Used for attention (emphasis, strong), whose sequences can open or close\n * based on the class of surrounding characters.\n *\n * > 👉 **Note**: eof (`null`) is seen as whitespace.\n *\n * @param {Code} code\n * Code.\n * @returns {typeof constants.characterGroupWhitespace | typeof constants.characterGroupPunctuation | undefined}\n * Group.\n */\nexport function classifyCharacter(code) {\n if (code === null || markdownLineEndingOrSpace(code) || unicodeWhitespace(code)) {\n return 1;\n }\n if (unicodePunctuation(code)) {\n return 2;\n }\n}","/**\n * @import {\n * Code,\n * Construct,\n * Event,\n * Point,\n * Resolver,\n * State,\n * TokenizeContext,\n * Tokenizer,\n * Token\n * } from 'micromark-util-types'\n */\n\nimport { push, splice } from 'micromark-util-chunked';\nimport { classifyCharacter } from 'micromark-util-classify-character';\nimport { resolveAll } from 'micromark-util-resolve-all';\n/** @type {Construct} */\nexport const attention = {\n name: 'attention',\n resolveAll: resolveAllAttention,\n tokenize: tokenizeAttention\n};\n\n/**\n * Take all events and resolve attention to emphasis or strong.\n *\n * @type {Resolver}\n */\n// eslint-disable-next-line complexity\nfunction resolveAllAttention(events, context) {\n let index = -1;\n /** @type {number} */\n let open;\n /** @type {Token} */\n let group;\n /** @type {Token} */\n let text;\n /** @type {Token} */\n let openingSequence;\n /** @type {Token} */\n let closingSequence;\n /** @type {number} */\n let use;\n /** @type {Array} */\n let nextEvents;\n /** @type {number} */\n let offset;\n\n // Walk through all events.\n //\n // Note: performance of this is fine on an mb of normal markdown, but it’s\n // a bottleneck for malicious stuff.\n while (++index < events.length) {\n // Find a token that can close.\n if (events[index][0] === 'enter' && events[index][1].type === 'attentionSequence' && events[index][1]._close) {\n open = index;\n\n // Now walk back to find an opener.\n while (open--) {\n // Find a token that can open the closer.\n if (events[open][0] === 'exit' && events[open][1].type === 'attentionSequence' && events[open][1]._open &&\n // If the markers are the same:\n context.sliceSerialize(events[open][1]).charCodeAt(0) === context.sliceSerialize(events[index][1]).charCodeAt(0)) {\n // If the opening can close or the closing can open,\n // and the close size *is not* a multiple of three,\n // but the sum of the opening and closing size *is* multiple of three,\n // then don’t match.\n if ((events[open][1]._close || events[index][1]._open) && (events[index][1].end.offset - events[index][1].start.offset) % 3 && !((events[open][1].end.offset - events[open][1].start.offset + events[index][1].end.offset - events[index][1].start.offset) % 3)) {\n continue;\n }\n\n // Number of markers to use from the sequence.\n use = events[open][1].end.offset - events[open][1].start.offset > 1 && events[index][1].end.offset - events[index][1].start.offset > 1 ? 2 : 1;\n const start = {\n ...events[open][1].end\n };\n const end = {\n ...events[index][1].start\n };\n movePoint(start, -use);\n movePoint(end, use);\n openingSequence = {\n type: use > 1 ? \"strongSequence\" : \"emphasisSequence\",\n start,\n end: {\n ...events[open][1].end\n }\n };\n closingSequence = {\n type: use > 1 ? \"strongSequence\" : \"emphasisSequence\",\n start: {\n ...events[index][1].start\n },\n end\n };\n text = {\n type: use > 1 ? \"strongText\" : \"emphasisText\",\n start: {\n ...events[open][1].end\n },\n end: {\n ...events[index][1].start\n }\n };\n group = {\n type: use > 1 ? \"strong\" : \"emphasis\",\n start: {\n ...openingSequence.start\n },\n end: {\n ...closingSequence.end\n }\n };\n events[open][1].end = {\n ...openingSequence.start\n };\n events[index][1].start = {\n ...closingSequence.end\n };\n nextEvents = [];\n\n // If there are more markers in the opening, add them before.\n if (events[open][1].end.offset - events[open][1].start.offset) {\n nextEvents = push(nextEvents, [['enter', events[open][1], context], ['exit', events[open][1], context]]);\n }\n\n // Opening.\n nextEvents = push(nextEvents, [['enter', group, context], ['enter', openingSequence, context], ['exit', openingSequence, context], ['enter', text, context]]);\n\n // Always populated by defaults.\n\n // Between.\n nextEvents = push(nextEvents, resolveAll(context.parser.constructs.insideSpan.null, events.slice(open + 1, index), context));\n\n // Closing.\n nextEvents = push(nextEvents, [['exit', text, context], ['enter', closingSequence, context], ['exit', closingSequence, context], ['exit', group, context]]);\n\n // If there are more markers in the closing, add them after.\n if (events[index][1].end.offset - events[index][1].start.offset) {\n offset = 2;\n nextEvents = push(nextEvents, [['enter', events[index][1], context], ['exit', events[index][1], context]]);\n } else {\n offset = 0;\n }\n splice(events, open - 1, index - open + 3, nextEvents);\n index = open + nextEvents.length - offset - 2;\n break;\n }\n }\n }\n }\n\n // Remove remaining sequences.\n index = -1;\n while (++index < events.length) {\n if (events[index][1].type === 'attentionSequence') {\n events[index][1].type = 'data';\n }\n }\n return events;\n}\n\n/**\n * @this {TokenizeContext}\n * Context.\n * @type {Tokenizer}\n */\nfunction tokenizeAttention(effects, ok) {\n const attentionMarkers = this.parser.constructs.attentionMarkers.null;\n const previous = this.previous;\n const before = classifyCharacter(previous);\n\n /** @type {NonNullable} */\n let marker;\n return start;\n\n /**\n * Before a sequence.\n *\n * ```markdown\n * > | **\n * ^\n * ```\n *\n * @type {State}\n */\n function start(code) {\n marker = code;\n effects.enter('attentionSequence');\n return inside(code);\n }\n\n /**\n * In a sequence.\n *\n * ```markdown\n * > | **\n * ^^\n * ```\n *\n * @type {State}\n */\n function inside(code) {\n if (code === marker) {\n effects.consume(code);\n return inside;\n }\n const token = effects.exit('attentionSequence');\n\n // To do: next major: move this to resolver, just like `markdown-rs`.\n const after = classifyCharacter(code);\n\n // Always populated by defaults.\n\n const open = !after || after === 2 && before || attentionMarkers.includes(code);\n const close = !before || before === 2 && after || attentionMarkers.includes(previous);\n token._open = Boolean(marker === 42 ? open : open && (before || !close));\n token._close = Boolean(marker === 42 ? close : close && (after || !open));\n return ok(code);\n }\n}\n\n/**\n * Move a point a bit.\n *\n * Note: `move` only works inside lines! It’s not possible to move past other\n * chunks (replacement characters, tabs, or line endings).\n *\n * @param {Point} point\n * Point.\n * @param {number} offset\n * Amount to move.\n * @returns {undefined}\n * Nothing.\n */\nfunction movePoint(point, offset) {\n point.column += offset;\n point.offset += offset;\n point._bufferIndex += offset;\n}","/**\n * @import {\n * Construct,\n * State,\n * TokenizeContext,\n * Tokenizer\n * } from 'micromark-util-types'\n */\n\nimport { asciiAlphanumeric, asciiAlpha, asciiAtext, asciiControl } from 'micromark-util-character';\n/** @type {Construct} */\nexport const autolink = {\n name: 'autolink',\n tokenize: tokenizeAutolink\n};\n\n/**\n * @this {TokenizeContext}\n * Context.\n * @type {Tokenizer}\n */\nfunction tokenizeAutolink(effects, ok, nok) {\n let size = 0;\n return start;\n\n /**\n * Start of an autolink.\n *\n * ```markdown\n * > | ab\n * ^\n * > | ab\n * ^\n * ```\n *\n * @type {State}\n */\n function start(code) {\n effects.enter(\"autolink\");\n effects.enter(\"autolinkMarker\");\n effects.consume(code);\n effects.exit(\"autolinkMarker\");\n effects.enter(\"autolinkProtocol\");\n return open;\n }\n\n /**\n * After `<`, at protocol or atext.\n *\n * ```markdown\n * > | ab\n * ^\n * > | ab\n * ^\n * ```\n *\n * @type {State}\n */\n function open(code) {\n if (asciiAlpha(code)) {\n effects.consume(code);\n return schemeOrEmailAtext;\n }\n if (code === 64) {\n return nok(code);\n }\n return emailAtext(code);\n }\n\n /**\n * At second byte of protocol or atext.\n *\n * ```markdown\n * > | ab\n * ^\n * > | ab\n * ^\n * ```\n *\n * @type {State}\n */\n function schemeOrEmailAtext(code) {\n // ASCII alphanumeric and `+`, `-`, and `.`.\n if (code === 43 || code === 45 || code === 46 || asciiAlphanumeric(code)) {\n // Count the previous alphabetical from `open` too.\n size = 1;\n return schemeInsideOrEmailAtext(code);\n }\n return emailAtext(code);\n }\n\n /**\n * In ambiguous protocol or atext.\n *\n * ```markdown\n * > | ab\n * ^\n * > | ab\n * ^\n * ```\n *\n * @type {State}\n */\n function schemeInsideOrEmailAtext(code) {\n if (code === 58) {\n effects.consume(code);\n size = 0;\n return urlInside;\n }\n\n // ASCII alphanumeric and `+`, `-`, and `.`.\n if ((code === 43 || code === 45 || code === 46 || asciiAlphanumeric(code)) && size++ < 32) {\n effects.consume(code);\n return schemeInsideOrEmailAtext;\n }\n size = 0;\n return emailAtext(code);\n }\n\n /**\n * After protocol, in URL.\n *\n * ```markdown\n * > | ab\n * ^\n * ```\n *\n * @type {State}\n */\n function urlInside(code) {\n if (code === 62) {\n effects.exit(\"autolinkProtocol\");\n effects.enter(\"autolinkMarker\");\n effects.consume(code);\n effects.exit(\"autolinkMarker\");\n effects.exit(\"autolink\");\n return ok;\n }\n\n // ASCII control, space, or `<`.\n if (code === null || code === 32 || code === 60 || asciiControl(code)) {\n return nok(code);\n }\n effects.consume(code);\n return urlInside;\n }\n\n /**\n * In email atext.\n *\n * ```markdown\n * > | ab\n * ^\n * ```\n *\n * @type {State}\n */\n function emailAtext(code) {\n if (code === 64) {\n effects.consume(code);\n return emailAtSignOrDot;\n }\n if (asciiAtext(code)) {\n effects.consume(code);\n return emailAtext;\n }\n return nok(code);\n }\n\n /**\n * In label, after at-sign or dot.\n *\n * ```markdown\n * > | ab\n * ^ ^\n * ```\n *\n * @type {State}\n */\n function emailAtSignOrDot(code) {\n return asciiAlphanumeric(code) ? emailLabel(code) : nok(code);\n }\n\n /**\n * In label, where `.` and `>` are allowed.\n *\n * ```markdown\n * > | ab\n * ^\n * ```\n *\n * @type {State}\n */\n function emailLabel(code) {\n if (code === 46) {\n effects.consume(code);\n size = 0;\n return emailAtSignOrDot;\n }\n if (code === 62) {\n // Exit, then change the token type.\n effects.exit(\"autolinkProtocol\").type = \"autolinkEmail\";\n effects.enter(\"autolinkMarker\");\n effects.consume(code);\n effects.exit(\"autolinkMarker\");\n effects.exit(\"autolink\");\n return ok;\n }\n return emailValue(code);\n }\n\n /**\n * In label, where `.` and `>` are *not* allowed.\n *\n * Though, this is also used in `emailLabel` to parse other values.\n *\n * ```markdown\n * > | ab\n * ^\n * ```\n *\n * @type {State}\n */\n function emailValue(code) {\n // ASCII alphanumeric or `-`.\n if ((code === 45 || asciiAlphanumeric(code)) && size++ < 63) {\n const next = code === 45 ? emailValue : emailLabel;\n effects.consume(code);\n return next;\n }\n return nok(code);\n }\n}","/**\n * @import {\n * Code,\n * Construct,\n * State,\n * TokenizeContext,\n * Tokenizer\n * } from 'micromark-util-types'\n */\n\nimport { factorySpace } from 'micromark-factory-space';\nimport { asciiAlphanumeric, asciiAlpha, markdownLineEndingOrSpace, markdownLineEnding, markdownSpace } from 'micromark-util-character';\n/** @type {Construct} */\nexport const htmlText = {\n name: 'htmlText',\n tokenize: tokenizeHtmlText\n};\n\n/**\n * @this {TokenizeContext}\n * Context.\n * @type {Tokenizer}\n */\nfunction tokenizeHtmlText(effects, ok, nok) {\n const self = this;\n /** @type {NonNullable | undefined} */\n let marker;\n /** @type {number} */\n let index;\n /** @type {State} */\n let returnState;\n return start;\n\n /**\n * Start of HTML (text).\n *\n * ```markdown\n * > | a c\n * ^\n * ```\n *\n * @type {State}\n */\n function start(code) {\n effects.enter(\"htmlText\");\n effects.enter(\"htmlTextData\");\n effects.consume(code);\n return open;\n }\n\n /**\n * After `<`, at tag name or other stuff.\n *\n * ```markdown\n * > | a c\n * ^\n * > | a c\n * ^\n * > | a c\n * ^\n * ```\n *\n * @type {State}\n */\n function open(code) {\n if (code === 33) {\n effects.consume(code);\n return declarationOpen;\n }\n if (code === 47) {\n effects.consume(code);\n return tagCloseStart;\n }\n if (code === 63) {\n effects.consume(code);\n return instruction;\n }\n\n // ASCII alphabetical.\n if (asciiAlpha(code)) {\n effects.consume(code);\n return tagOpen;\n }\n return nok(code);\n }\n\n /**\n * After ` | a c\n * ^\n * > | a c\n * ^\n * > | a &<]]> c\n * ^\n * ```\n *\n * @type {State}\n */\n function declarationOpen(code) {\n if (code === 45) {\n effects.consume(code);\n return commentOpenInside;\n }\n if (code === 91) {\n effects.consume(code);\n index = 0;\n return cdataOpenInside;\n }\n if (asciiAlpha(code)) {\n effects.consume(code);\n return declaration;\n }\n return nok(code);\n }\n\n /**\n * In a comment, after ` | a c\n * ^\n * ```\n *\n * @type {State}\n */\n function commentOpenInside(code) {\n if (code === 45) {\n effects.consume(code);\n return commentEnd;\n }\n return nok(code);\n }\n\n /**\n * In comment.\n *\n * ```markdown\n * > | a c\n * ^\n * ```\n *\n * @type {State}\n */\n function comment(code) {\n if (code === null) {\n return nok(code);\n }\n if (code === 45) {\n effects.consume(code);\n return commentClose;\n }\n if (markdownLineEnding(code)) {\n returnState = comment;\n return lineEndingBefore(code);\n }\n effects.consume(code);\n return comment;\n }\n\n /**\n * In comment, after `-`.\n *\n * ```markdown\n * > | a c\n * ^\n * ```\n *\n * @type {State}\n */\n function commentClose(code) {\n if (code === 45) {\n effects.consume(code);\n return commentEnd;\n }\n return comment(code);\n }\n\n /**\n * In comment, after `--`.\n *\n * ```markdown\n * > | a c\n * ^\n * ```\n *\n * @type {State}\n */\n function commentEnd(code) {\n return code === 62 ? end(code) : code === 45 ? commentClose(code) : comment(code);\n }\n\n /**\n * After ` | a &<]]> b\n * ^^^^^^\n * ```\n *\n * @type {State}\n */\n function cdataOpenInside(code) {\n const value = \"CDATA[\";\n if (code === value.charCodeAt(index++)) {\n effects.consume(code);\n return index === value.length ? cdata : cdataOpenInside;\n }\n return nok(code);\n }\n\n /**\n * In CDATA.\n *\n * ```markdown\n * > | a &<]]> b\n * ^^^\n * ```\n *\n * @type {State}\n */\n function cdata(code) {\n if (code === null) {\n return nok(code);\n }\n if (code === 93) {\n effects.consume(code);\n return cdataClose;\n }\n if (markdownLineEnding(code)) {\n returnState = cdata;\n return lineEndingBefore(code);\n }\n effects.consume(code);\n return cdata;\n }\n\n /**\n * In CDATA, after `]`, at another `]`.\n *\n * ```markdown\n * > | a &<]]> b\n * ^\n * ```\n *\n * @type {State}\n */\n function cdataClose(code) {\n if (code === 93) {\n effects.consume(code);\n return cdataEnd;\n }\n return cdata(code);\n }\n\n /**\n * In CDATA, after `]]`, at `>`.\n *\n * ```markdown\n * > | a &<]]> b\n * ^\n * ```\n *\n * @type {State}\n */\n function cdataEnd(code) {\n if (code === 62) {\n return end(code);\n }\n if (code === 93) {\n effects.consume(code);\n return cdataEnd;\n }\n return cdata(code);\n }\n\n /**\n * In declaration.\n *\n * ```markdown\n * > | a c\n * ^\n * ```\n *\n * @type {State}\n */\n function declaration(code) {\n if (code === null || code === 62) {\n return end(code);\n }\n if (markdownLineEnding(code)) {\n returnState = declaration;\n return lineEndingBefore(code);\n }\n effects.consume(code);\n return declaration;\n }\n\n /**\n * In instruction.\n *\n * ```markdown\n * > | a c\n * ^\n * ```\n *\n * @type {State}\n */\n function instruction(code) {\n if (code === null) {\n return nok(code);\n }\n if (code === 63) {\n effects.consume(code);\n return instructionClose;\n }\n if (markdownLineEnding(code)) {\n returnState = instruction;\n return lineEndingBefore(code);\n }\n effects.consume(code);\n return instruction;\n }\n\n /**\n * In instruction, after `?`, at `>`.\n *\n * ```markdown\n * > | a c\n * ^\n * ```\n *\n * @type {State}\n */\n function instructionClose(code) {\n return code === 62 ? end(code) : instruction(code);\n }\n\n /**\n * After ` | a c\n * ^\n * ```\n *\n * @type {State}\n */\n function tagCloseStart(code) {\n // ASCII alphabetical.\n if (asciiAlpha(code)) {\n effects.consume(code);\n return tagClose;\n }\n return nok(code);\n }\n\n /**\n * After ` | a c\n * ^\n * ```\n *\n * @type {State}\n */\n function tagClose(code) {\n // ASCII alphanumerical and `-`.\n if (code === 45 || asciiAlphanumeric(code)) {\n effects.consume(code);\n return tagClose;\n }\n return tagCloseBetween(code);\n }\n\n /**\n * In closing tag, after tag name.\n *\n * ```markdown\n * > | a c\n * ^\n * ```\n *\n * @type {State}\n */\n function tagCloseBetween(code) {\n if (markdownLineEnding(code)) {\n returnState = tagCloseBetween;\n return lineEndingBefore(code);\n }\n if (markdownSpace(code)) {\n effects.consume(code);\n return tagCloseBetween;\n }\n return end(code);\n }\n\n /**\n * After ` | a c\n * ^\n * ```\n *\n * @type {State}\n */\n function tagOpen(code) {\n // ASCII alphanumerical and `-`.\n if (code === 45 || asciiAlphanumeric(code)) {\n effects.consume(code);\n return tagOpen;\n }\n if (code === 47 || code === 62 || markdownLineEndingOrSpace(code)) {\n return tagOpenBetween(code);\n }\n return nok(code);\n }\n\n /**\n * In opening tag, after tag name.\n *\n * ```markdown\n * > | a c\n * ^\n * ```\n *\n * @type {State}\n */\n function tagOpenBetween(code) {\n if (code === 47) {\n effects.consume(code);\n return end;\n }\n\n // ASCII alphabetical and `:` and `_`.\n if (code === 58 || code === 95 || asciiAlpha(code)) {\n effects.consume(code);\n return tagOpenAttributeName;\n }\n if (markdownLineEnding(code)) {\n returnState = tagOpenBetween;\n return lineEndingBefore(code);\n }\n if (markdownSpace(code)) {\n effects.consume(code);\n return tagOpenBetween;\n }\n return end(code);\n }\n\n /**\n * In attribute name.\n *\n * ```markdown\n * > | a d\n * ^\n * ```\n *\n * @type {State}\n */\n function tagOpenAttributeName(code) {\n // ASCII alphabetical and `-`, `.`, `:`, and `_`.\n if (code === 45 || code === 46 || code === 58 || code === 95 || asciiAlphanumeric(code)) {\n effects.consume(code);\n return tagOpenAttributeName;\n }\n return tagOpenAttributeNameAfter(code);\n }\n\n /**\n * After attribute name, before initializer, the end of the tag, or\n * whitespace.\n *\n * ```markdown\n * > | a d\n * ^\n * ```\n *\n * @type {State}\n */\n function tagOpenAttributeNameAfter(code) {\n if (code === 61) {\n effects.consume(code);\n return tagOpenAttributeValueBefore;\n }\n if (markdownLineEnding(code)) {\n returnState = tagOpenAttributeNameAfter;\n return lineEndingBefore(code);\n }\n if (markdownSpace(code)) {\n effects.consume(code);\n return tagOpenAttributeNameAfter;\n }\n return tagOpenBetween(code);\n }\n\n /**\n * Before unquoted, double quoted, or single quoted attribute value, allowing\n * whitespace.\n *\n * ```markdown\n * > | a e\n * ^\n * ```\n *\n * @type {State}\n */\n function tagOpenAttributeValueBefore(code) {\n if (code === null || code === 60 || code === 61 || code === 62 || code === 96) {\n return nok(code);\n }\n if (code === 34 || code === 39) {\n effects.consume(code);\n marker = code;\n return tagOpenAttributeValueQuoted;\n }\n if (markdownLineEnding(code)) {\n returnState = tagOpenAttributeValueBefore;\n return lineEndingBefore(code);\n }\n if (markdownSpace(code)) {\n effects.consume(code);\n return tagOpenAttributeValueBefore;\n }\n effects.consume(code);\n return tagOpenAttributeValueUnquoted;\n }\n\n /**\n * In double or single quoted attribute value.\n *\n * ```markdown\n * > | a e\n * ^\n * ```\n *\n * @type {State}\n */\n function tagOpenAttributeValueQuoted(code) {\n if (code === marker) {\n effects.consume(code);\n marker = undefined;\n return tagOpenAttributeValueQuotedAfter;\n }\n if (code === null) {\n return nok(code);\n }\n if (markdownLineEnding(code)) {\n returnState = tagOpenAttributeValueQuoted;\n return lineEndingBefore(code);\n }\n effects.consume(code);\n return tagOpenAttributeValueQuoted;\n }\n\n /**\n * In unquoted attribute value.\n *\n * ```markdown\n * > | a e\n * ^\n * ```\n *\n * @type {State}\n */\n function tagOpenAttributeValueUnquoted(code) {\n if (code === null || code === 34 || code === 39 || code === 60 || code === 61 || code === 96) {\n return nok(code);\n }\n if (code === 47 || code === 62 || markdownLineEndingOrSpace(code)) {\n return tagOpenBetween(code);\n }\n effects.consume(code);\n return tagOpenAttributeValueUnquoted;\n }\n\n /**\n * After double or single quoted attribute value, before whitespace or the end\n * of the tag.\n *\n * ```markdown\n * > | a e\n * ^\n * ```\n *\n * @type {State}\n */\n function tagOpenAttributeValueQuotedAfter(code) {\n if (code === 47 || code === 62 || markdownLineEndingOrSpace(code)) {\n return tagOpenBetween(code);\n }\n return nok(code);\n }\n\n /**\n * In certain circumstances of a tag where only an `>` is allowed.\n *\n * ```markdown\n * > | a e\n * ^\n * ```\n *\n * @type {State}\n */\n function end(code) {\n if (code === 62) {\n effects.consume(code);\n effects.exit(\"htmlTextData\");\n effects.exit(\"htmlText\");\n return ok;\n }\n return nok(code);\n }\n\n /**\n * At eol.\n *\n * > 👉 **Note**: we can’t have blank lines in text, so no need to worry about\n * > empty tokens.\n *\n * ```markdown\n * > | a \n * ```\n *\n * @type {State}\n */\n function lineEndingBefore(code) {\n effects.exit(\"htmlTextData\");\n effects.enter(\"lineEnding\");\n effects.consume(code);\n effects.exit(\"lineEnding\");\n return lineEndingAfter;\n }\n\n /**\n * After eol, at optional whitespace.\n *\n * > 👉 **Note**: we can’t have blank lines in text, so no need to worry about\n * > empty tokens.\n *\n * ```markdown\n * | a \n * ^\n * ```\n *\n * @type {State}\n */\n function lineEndingAfter(code) {\n // Always populated by defaults.\n\n return markdownSpace(code) ? factorySpace(effects, lineEndingAfterPrefix, \"linePrefix\", self.parser.constructs.disable.null.includes('codeIndented') ? undefined : 4)(code) : lineEndingAfterPrefix(code);\n }\n\n /**\n * After eol, after optional whitespace.\n *\n * > 👉 **Note**: we can’t have blank lines in text, so no need to worry about\n * > empty tokens.\n *\n * ```markdown\n * | a \n * ^\n * ```\n *\n * @type {State}\n */\n function lineEndingAfterPrefix(code) {\n effects.enter(\"htmlTextData\");\n return returnState(code);\n }\n}","/**\n * @import {\n * Construct,\n * State,\n * TokenizeContext,\n * Tokenizer\n * } from 'micromark-util-types'\n */\n\nimport { labelEnd } from './label-end.js';\n\n/** @type {Construct} */\nexport const labelStartLink = {\n name: 'labelStartLink',\n resolveAll: labelEnd.resolveAll,\n tokenize: tokenizeLabelStartLink\n};\n\n/**\n * @this {TokenizeContext}\n * Context.\n * @type {Tokenizer}\n */\nfunction tokenizeLabelStartLink(effects, ok, nok) {\n const self = this;\n return start;\n\n /**\n * Start of label (link) start.\n *\n * ```markdown\n * > | a [b] c\n * ^\n * ```\n *\n * @type {State}\n */\n function start(code) {\n effects.enter(\"labelLink\");\n effects.enter(\"labelMarker\");\n effects.consume(code);\n effects.exit(\"labelMarker\");\n effects.exit(\"labelLink\");\n return after;\n }\n\n /** @type {State} */\n function after(code) {\n // To do: this isn’t needed in `micromark-extension-gfm-footnote`,\n // remove.\n // Hidden footnotes hook.\n /* c8 ignore next 3 */\n return code === 94 && '_hiddenFootnoteSupport' in self.parser.constructs ? nok(code) : ok(code);\n }\n}","/**\n * @import {\n * Construct,\n * State,\n * TokenizeContext,\n * Tokenizer\n * } from 'micromark-util-types'\n */\n\nimport { markdownLineEnding } from 'micromark-util-character';\n/** @type {Construct} */\nexport const hardBreakEscape = {\n name: 'hardBreakEscape',\n tokenize: tokenizeHardBreakEscape\n};\n\n/**\n * @this {TokenizeContext}\n * Context.\n * @type {Tokenizer}\n */\nfunction tokenizeHardBreakEscape(effects, ok, nok) {\n return start;\n\n /**\n * Start of a hard break (escape).\n *\n * ```markdown\n * > | a\\\n * ^\n * | b\n * ```\n *\n * @type {State}\n */\n function start(code) {\n effects.enter(\"hardBreakEscape\");\n effects.consume(code);\n return after;\n }\n\n /**\n * After `\\`, at eol.\n *\n * ```markdown\n * > | a\\\n * ^\n * | b\n * ```\n *\n * @type {State}\n */\n function after(code) {\n if (markdownLineEnding(code)) {\n effects.exit(\"hardBreakEscape\");\n return ok(code);\n }\n return nok(code);\n }\n}","/**\n * @import {\n * Construct,\n * Previous,\n * Resolver,\n * State,\n * TokenizeContext,\n * Tokenizer,\n * Token\n * } from 'micromark-util-types'\n */\n\nimport { markdownLineEnding } from 'micromark-util-character';\n/** @type {Construct} */\nexport const codeText = {\n name: 'codeText',\n previous,\n resolve: resolveCodeText,\n tokenize: tokenizeCodeText\n};\n\n// To do: next major: don’t resolve, like `markdown-rs`.\n/** @type {Resolver} */\nfunction resolveCodeText(events) {\n let tailExitIndex = events.length - 4;\n let headEnterIndex = 3;\n /** @type {number} */\n let index;\n /** @type {number | undefined} */\n let enter;\n\n // If we start and end with an EOL or a space.\n if ((events[headEnterIndex][1].type === \"lineEnding\" || events[headEnterIndex][1].type === 'space') && (events[tailExitIndex][1].type === \"lineEnding\" || events[tailExitIndex][1].type === 'space')) {\n index = headEnterIndex;\n\n // And we have data.\n while (++index < tailExitIndex) {\n if (events[index][1].type === \"codeTextData\") {\n // Then we have padding.\n events[headEnterIndex][1].type = \"codeTextPadding\";\n events[tailExitIndex][1].type = \"codeTextPadding\";\n headEnterIndex += 2;\n tailExitIndex -= 2;\n break;\n }\n }\n }\n\n // Merge adjacent spaces and data.\n index = headEnterIndex - 1;\n tailExitIndex++;\n while (++index <= tailExitIndex) {\n if (enter === undefined) {\n if (index !== tailExitIndex && events[index][1].type !== \"lineEnding\") {\n enter = index;\n }\n } else if (index === tailExitIndex || events[index][1].type === \"lineEnding\") {\n events[enter][1].type = \"codeTextData\";\n if (index !== enter + 2) {\n events[enter][1].end = events[index - 1][1].end;\n events.splice(enter + 2, index - enter - 2);\n tailExitIndex -= index - enter - 2;\n index = enter + 2;\n }\n enter = undefined;\n }\n }\n return events;\n}\n\n/**\n * @this {TokenizeContext}\n * Context.\n * @type {Previous}\n */\nfunction previous(code) {\n // If there is a previous code, there will always be a tail.\n return code !== 96 || this.events[this.events.length - 1][1].type === \"characterEscape\";\n}\n\n/**\n * @this {TokenizeContext}\n * Context.\n * @type {Tokenizer}\n */\nfunction tokenizeCodeText(effects, ok, nok) {\n const self = this;\n let sizeOpen = 0;\n /** @type {number} */\n let size;\n /** @type {Token} */\n let token;\n return start;\n\n /**\n * Start of code (text).\n *\n * ```markdown\n * > | `a`\n * ^\n * > | \\`a`\n * ^\n * ```\n *\n * @type {State}\n */\n function start(code) {\n effects.enter(\"codeText\");\n effects.enter(\"codeTextSequence\");\n return sequenceOpen(code);\n }\n\n /**\n * In opening sequence.\n *\n * ```markdown\n * > | `a`\n * ^\n * ```\n *\n * @type {State}\n */\n function sequenceOpen(code) {\n if (code === 96) {\n effects.consume(code);\n sizeOpen++;\n return sequenceOpen;\n }\n effects.exit(\"codeTextSequence\");\n return between(code);\n }\n\n /**\n * Between something and something else.\n *\n * ```markdown\n * > | `a`\n * ^^\n * ```\n *\n * @type {State}\n */\n function between(code) {\n // EOF.\n if (code === null) {\n return nok(code);\n }\n\n // To do: next major: don’t do spaces in resolve, but when compiling,\n // like `markdown-rs`.\n // Tabs don’t work, and virtual spaces don’t make sense.\n if (code === 32) {\n effects.enter('space');\n effects.consume(code);\n effects.exit('space');\n return between;\n }\n\n // Closing fence? Could also be data.\n if (code === 96) {\n token = effects.enter(\"codeTextSequence\");\n size = 0;\n return sequenceClose(code);\n }\n if (markdownLineEnding(code)) {\n effects.enter(\"lineEnding\");\n effects.consume(code);\n effects.exit(\"lineEnding\");\n return between;\n }\n\n // Data.\n effects.enter(\"codeTextData\");\n return data(code);\n }\n\n /**\n * In data.\n *\n * ```markdown\n * > | `a`\n * ^\n * ```\n *\n * @type {State}\n */\n function data(code) {\n if (code === null || code === 32 || code === 96 || markdownLineEnding(code)) {\n effects.exit(\"codeTextData\");\n return between(code);\n }\n effects.consume(code);\n return data;\n }\n\n /**\n * In closing sequence.\n *\n * ```markdown\n * > | `a`\n * ^\n * ```\n *\n * @type {State}\n */\n function sequenceClose(code) {\n // More.\n if (code === 96) {\n effects.consume(code);\n size++;\n return sequenceClose;\n }\n\n // Done!\n if (size === sizeOpen) {\n effects.exit(\"codeTextSequence\");\n effects.exit(\"codeText\");\n return ok(code);\n }\n\n // More or less accents: mark as data.\n token.type = \"codeTextData\";\n return data(code);\n }\n}","/**\n * @import {Extension} from 'micromark-util-types'\n */\n\nimport { attention, autolink, blockQuote, characterEscape, characterReference, codeFenced, codeIndented, codeText, definition, hardBreakEscape, headingAtx, htmlFlow, htmlText, labelEnd, labelStartImage, labelStartLink, lineEnding, list, setextUnderline, thematicBreak } from 'micromark-core-commonmark';\nimport { resolver as resolveText } from './initialize/text.js';\n\n/** @satisfies {Extension['document']} */\nexport const document = {\n [42]: list,\n [43]: list,\n [45]: list,\n [48]: list,\n [49]: list,\n [50]: list,\n [51]: list,\n [52]: list,\n [53]: list,\n [54]: list,\n [55]: list,\n [56]: list,\n [57]: list,\n [62]: blockQuote\n};\n\n/** @satisfies {Extension['contentInitial']} */\nexport const contentInitial = {\n [91]: definition\n};\n\n/** @satisfies {Extension['flowInitial']} */\nexport const flowInitial = {\n [-2]: codeIndented,\n [-1]: codeIndented,\n [32]: codeIndented\n};\n\n/** @satisfies {Extension['flow']} */\nexport const flow = {\n [35]: headingAtx,\n [42]: thematicBreak,\n [45]: [setextUnderline, thematicBreak],\n [60]: htmlFlow,\n [61]: setextUnderline,\n [95]: thematicBreak,\n [96]: codeFenced,\n [126]: codeFenced\n};\n\n/** @satisfies {Extension['string']} */\nexport const string = {\n [38]: characterReference,\n [92]: characterEscape\n};\n\n/** @satisfies {Extension['text']} */\nexport const text = {\n [-5]: lineEnding,\n [-4]: lineEnding,\n [-3]: lineEnding,\n [33]: labelStartImage,\n [38]: characterReference,\n [42]: attention,\n [60]: [autolink, htmlText],\n [91]: labelStartLink,\n [92]: [hardBreakEscape, characterEscape],\n [93]: labelEnd,\n [95]: attention,\n [96]: codeText\n};\n\n/** @satisfies {Extension['insideSpan']} */\nexport const insideSpan = {\n null: [attention, resolveText]\n};\n\n/** @satisfies {Extension['attentionMarkers']} */\nexport const attentionMarkers = {\n null: [42, 95]\n};\n\n/** @satisfies {Extension['disable']} */\nexport const disable = {\n null: []\n};","/**\n * @import {\n * Chunk,\n * Code,\n * ConstructRecord,\n * Construct,\n * Effects,\n * InitialConstruct,\n * ParseContext,\n * Point,\n * State,\n * TokenizeContext,\n * Token\n * } from 'micromark-util-types'\n */\n\n/**\n * @callback Restore\n * Restore the state.\n * @returns {undefined}\n * Nothing.\n *\n * @typedef Info\n * Info.\n * @property {Restore} restore\n * Restore.\n * @property {number} from\n * From.\n *\n * @callback ReturnHandle\n * Handle a successful run.\n * @param {Construct} construct\n * Construct.\n * @param {Info} info\n * Info.\n * @returns {undefined}\n * Nothing.\n */\n\nimport { markdownLineEnding } from 'micromark-util-character';\nimport { push, splice } from 'micromark-util-chunked';\nimport { resolveAll } from 'micromark-util-resolve-all';\n/**\n * Create a tokenizer.\n * Tokenizers deal with one type of data (e.g., containers, flow, text).\n * The parser is the object dealing with it all.\n * `initialize` works like other constructs, except that only its `tokenize`\n * function is used, in which case it doesn’t receive an `ok` or `nok`.\n * `from` can be given to set the point before the first character, although\n * when further lines are indented, they must be set with `defineSkip`.\n *\n * @param {ParseContext} parser\n * Parser.\n * @param {InitialConstruct} initialize\n * Construct.\n * @param {Omit | undefined} [from]\n * Point (optional).\n * @returns {TokenizeContext}\n * Context.\n */\nexport function createTokenizer(parser, initialize, from) {\n /** @type {Point} */\n let point = {\n _bufferIndex: -1,\n _index: 0,\n line: from && from.line || 1,\n column: from && from.column || 1,\n offset: from && from.offset || 0\n };\n /** @type {Record} */\n const columnStart = {};\n /** @type {Array} */\n const resolveAllConstructs = [];\n /** @type {Array} */\n let chunks = [];\n /** @type {Array} */\n let stack = [];\n /** @type {boolean | undefined} */\n let consumed = true;\n\n /**\n * Tools used for tokenizing.\n *\n * @type {Effects}\n */\n const effects = {\n attempt: constructFactory(onsuccessfulconstruct),\n check: constructFactory(onsuccessfulcheck),\n consume,\n enter,\n exit,\n interrupt: constructFactory(onsuccessfulcheck, {\n interrupt: true\n })\n };\n\n /**\n * State and tools for resolving and serializing.\n *\n * @type {TokenizeContext}\n */\n const context = {\n code: null,\n containerState: {},\n defineSkip,\n events: [],\n now,\n parser,\n previous: null,\n sliceSerialize,\n sliceStream,\n write\n };\n\n /**\n * The state function.\n *\n * @type {State | undefined}\n */\n let state = initialize.tokenize.call(context, effects);\n\n /**\n * Track which character we expect to be consumed, to catch bugs.\n *\n * @type {Code}\n */\n let expectedCode;\n if (initialize.resolveAll) {\n resolveAllConstructs.push(initialize);\n }\n return context;\n\n /** @type {TokenizeContext['write']} */\n function write(slice) {\n chunks = push(chunks, slice);\n main();\n\n // Exit if we’re not done, resolve might change stuff.\n if (chunks[chunks.length - 1] !== null) {\n return [];\n }\n addResult(initialize, 0);\n\n // Otherwise, resolve, and exit.\n context.events = resolveAll(resolveAllConstructs, context.events, context);\n return context.events;\n }\n\n //\n // Tools.\n //\n\n /** @type {TokenizeContext['sliceSerialize']} */\n function sliceSerialize(token, expandTabs) {\n return serializeChunks(sliceStream(token), expandTabs);\n }\n\n /** @type {TokenizeContext['sliceStream']} */\n function sliceStream(token) {\n return sliceChunks(chunks, token);\n }\n\n /** @type {TokenizeContext['now']} */\n function now() {\n // This is a hot path, so we clone manually instead of `Object.assign({}, point)`\n const {\n _bufferIndex,\n _index,\n line,\n column,\n offset\n } = point;\n return {\n _bufferIndex,\n _index,\n line,\n column,\n offset\n };\n }\n\n /** @type {TokenizeContext['defineSkip']} */\n function defineSkip(value) {\n columnStart[value.line] = value.column;\n accountForPotentialSkip();\n }\n\n //\n // State management.\n //\n\n /**\n * Main loop (note that `_index` and `_bufferIndex` in `point` are modified by\n * `consume`).\n * Here is where we walk through the chunks, which either include strings of\n * several characters, or numerical character codes.\n * The reason to do this in a loop instead of a call is so the stack can\n * drain.\n *\n * @returns {undefined}\n * Nothing.\n */\n function main() {\n /** @type {number} */\n let chunkIndex;\n while (point._index < chunks.length) {\n const chunk = chunks[point._index];\n\n // If we’re in a buffer chunk, loop through it.\n if (typeof chunk === 'string') {\n chunkIndex = point._index;\n if (point._bufferIndex < 0) {\n point._bufferIndex = 0;\n }\n while (point._index === chunkIndex && point._bufferIndex < chunk.length) {\n go(chunk.charCodeAt(point._bufferIndex));\n }\n } else {\n go(chunk);\n }\n }\n }\n\n /**\n * Deal with one code.\n *\n * @param {Code} code\n * Code.\n * @returns {undefined}\n * Nothing.\n */\n function go(code) {\n consumed = undefined;\n expectedCode = code;\n state = state(code);\n }\n\n /** @type {Effects['consume']} */\n function consume(code) {\n if (markdownLineEnding(code)) {\n point.line++;\n point.column = 1;\n point.offset += code === -3 ? 2 : 1;\n accountForPotentialSkip();\n } else if (code !== -1) {\n point.column++;\n point.offset++;\n }\n\n // Not in a string chunk.\n if (point._bufferIndex < 0) {\n point._index++;\n } else {\n point._bufferIndex++;\n\n // At end of string chunk.\n if (point._bufferIndex ===\n // Points w/ non-negative `_bufferIndex` reference\n // strings.\n /** @type {string} */\n chunks[point._index].length) {\n point._bufferIndex = -1;\n point._index++;\n }\n }\n\n // Expose the previous character.\n context.previous = code;\n\n // Mark as consumed.\n consumed = true;\n }\n\n /** @type {Effects['enter']} */\n function enter(type, fields) {\n /** @type {Token} */\n // @ts-expect-error Patch instead of assign required fields to help GC.\n const token = fields || {};\n token.type = type;\n token.start = now();\n context.events.push(['enter', token, context]);\n stack.push(token);\n return token;\n }\n\n /** @type {Effects['exit']} */\n function exit(type) {\n const token = stack.pop();\n token.end = now();\n context.events.push(['exit', token, context]);\n return token;\n }\n\n /**\n * Use results.\n *\n * @type {ReturnHandle}\n */\n function onsuccessfulconstruct(construct, info) {\n addResult(construct, info.from);\n }\n\n /**\n * Discard results.\n *\n * @type {ReturnHandle}\n */\n function onsuccessfulcheck(_, info) {\n info.restore();\n }\n\n /**\n * Factory to attempt/check/interrupt.\n *\n * @param {ReturnHandle} onreturn\n * Callback.\n * @param {{interrupt?: boolean | undefined} | undefined} [fields]\n * Fields.\n */\n function constructFactory(onreturn, fields) {\n return hook;\n\n /**\n * Handle either an object mapping codes to constructs, a list of\n * constructs, or a single construct.\n *\n * @param {Array | ConstructRecord | Construct} constructs\n * Constructs.\n * @param {State} returnState\n * State.\n * @param {State | undefined} [bogusState]\n * State.\n * @returns {State}\n * State.\n */\n function hook(constructs, returnState, bogusState) {\n /** @type {ReadonlyArray} */\n let listOfConstructs;\n /** @type {number} */\n let constructIndex;\n /** @type {Construct} */\n let currentConstruct;\n /** @type {Info} */\n let info;\n return Array.isArray(constructs) ? /* c8 ignore next 1 */\n handleListOfConstructs(constructs) : 'tokenize' in constructs ?\n // Looks like a construct.\n handleListOfConstructs([(/** @type {Construct} */constructs)]) : handleMapOfConstructs(constructs);\n\n /**\n * Handle a list of construct.\n *\n * @param {ConstructRecord} map\n * Constructs.\n * @returns {State}\n * State.\n */\n function handleMapOfConstructs(map) {\n return start;\n\n /** @type {State} */\n function start(code) {\n const left = code !== null && map[code];\n const all = code !== null && map.null;\n const list = [\n // To do: add more extension tests.\n /* c8 ignore next 2 */\n ...(Array.isArray(left) ? left : left ? [left] : []), ...(Array.isArray(all) ? all : all ? [all] : [])];\n return handleListOfConstructs(list)(code);\n }\n }\n\n /**\n * Handle a list of construct.\n *\n * @param {ReadonlyArray} list\n * Constructs.\n * @returns {State}\n * State.\n */\n function handleListOfConstructs(list) {\n listOfConstructs = list;\n constructIndex = 0;\n if (list.length === 0) {\n return bogusState;\n }\n return handleConstruct(list[constructIndex]);\n }\n\n /**\n * Handle a single construct.\n *\n * @param {Construct} construct\n * Construct.\n * @returns {State}\n * State.\n */\n function handleConstruct(construct) {\n return start;\n\n /** @type {State} */\n function start(code) {\n // To do: not needed to store if there is no bogus state, probably?\n // Currently doesn’t work because `inspect` in document does a check\n // w/o a bogus, which doesn’t make sense. But it does seem to help perf\n // by not storing.\n info = store();\n currentConstruct = construct;\n if (!construct.partial) {\n context.currentConstruct = construct;\n }\n\n // Always populated by defaults.\n\n if (construct.name && context.parser.constructs.disable.null.includes(construct.name)) {\n return nok(code);\n }\n return construct.tokenize.call(\n // If we do have fields, create an object w/ `context` as its\n // prototype.\n // This allows a “live binding”, which is needed for `interrupt`.\n fields ? Object.assign(Object.create(context), fields) : context, effects, ok, nok)(code);\n }\n }\n\n /** @type {State} */\n function ok(code) {\n consumed = true;\n onreturn(currentConstruct, info);\n return returnState;\n }\n\n /** @type {State} */\n function nok(code) {\n consumed = true;\n info.restore();\n if (++constructIndex < listOfConstructs.length) {\n return handleConstruct(listOfConstructs[constructIndex]);\n }\n return bogusState;\n }\n }\n }\n\n /**\n * @param {Construct} construct\n * Construct.\n * @param {number} from\n * From.\n * @returns {undefined}\n * Nothing.\n */\n function addResult(construct, from) {\n if (construct.resolveAll && !resolveAllConstructs.includes(construct)) {\n resolveAllConstructs.push(construct);\n }\n if (construct.resolve) {\n splice(context.events, from, context.events.length - from, construct.resolve(context.events.slice(from), context));\n }\n if (construct.resolveTo) {\n context.events = construct.resolveTo(context.events, context);\n }\n }\n\n /**\n * Store state.\n *\n * @returns {Info}\n * Info.\n */\n function store() {\n const startPoint = now();\n const startPrevious = context.previous;\n const startCurrentConstruct = context.currentConstruct;\n const startEventsIndex = context.events.length;\n const startStack = Array.from(stack);\n return {\n from: startEventsIndex,\n restore\n };\n\n /**\n * Restore state.\n *\n * @returns {undefined}\n * Nothing.\n */\n function restore() {\n point = startPoint;\n context.previous = startPrevious;\n context.currentConstruct = startCurrentConstruct;\n context.events.length = startEventsIndex;\n stack = startStack;\n accountForPotentialSkip();\n }\n }\n\n /**\n * Move the current point a bit forward in the line when it’s on a column\n * skip.\n *\n * @returns {undefined}\n * Nothing.\n */\n function accountForPotentialSkip() {\n if (point.line in columnStart && point.column < 2) {\n point.column = columnStart[point.line];\n point.offset += columnStart[point.line] - 1;\n }\n }\n}\n\n/**\n * Get the chunks from a slice of chunks in the range of a token.\n *\n * @param {ReadonlyArray} chunks\n * Chunks.\n * @param {Pick} token\n * Token.\n * @returns {Array}\n * Chunks.\n */\nfunction sliceChunks(chunks, token) {\n const startIndex = token.start._index;\n const startBufferIndex = token.start._bufferIndex;\n const endIndex = token.end._index;\n const endBufferIndex = token.end._bufferIndex;\n /** @type {Array} */\n let view;\n if (startIndex === endIndex) {\n // @ts-expect-error `_bufferIndex` is used on string chunks.\n view = [chunks[startIndex].slice(startBufferIndex, endBufferIndex)];\n } else {\n view = chunks.slice(startIndex, endIndex);\n if (startBufferIndex > -1) {\n const head = view[0];\n if (typeof head === 'string') {\n view[0] = head.slice(startBufferIndex);\n } else {\n view.shift();\n }\n }\n if (endBufferIndex > 0) {\n // @ts-expect-error `_bufferIndex` is used on string chunks.\n view.push(chunks[endIndex].slice(0, endBufferIndex));\n }\n }\n return view;\n}\n\n/**\n * Get the string value of a slice of chunks.\n *\n * @param {ReadonlyArray} chunks\n * Chunks.\n * @param {boolean | undefined} [expandTabs=false]\n * Whether to expand tabs (default: `false`).\n * @returns {string}\n * Result.\n */\nfunction serializeChunks(chunks, expandTabs) {\n let index = -1;\n /** @type {Array} */\n const result = [];\n /** @type {boolean | undefined} */\n let atTab;\n while (++index < chunks.length) {\n const chunk = chunks[index];\n /** @type {string} */\n let value;\n if (typeof chunk === 'string') {\n value = chunk;\n } else switch (chunk) {\n case -5:\n {\n value = \"\\r\";\n break;\n }\n case -4:\n {\n value = \"\\n\";\n break;\n }\n case -3:\n {\n value = \"\\r\" + \"\\n\";\n break;\n }\n case -2:\n {\n value = expandTabs ? \" \" : \"\\t\";\n break;\n }\n case -1:\n {\n if (!expandTabs && atTab) continue;\n value = \" \";\n break;\n }\n default:\n {\n // Currently only replacement character.\n value = String.fromCharCode(chunk);\n }\n }\n atTab = chunk === -2;\n result.push(value);\n }\n return result.join('');\n}","/**\n * @import {Chunk, Code, Encoding, Value} from 'micromark-util-types'\n */\n\n/**\n * @callback Preprocessor\n * Preprocess a value.\n * @param {Value} value\n * Value.\n * @param {Encoding | null | undefined} [encoding]\n * Encoding when `value` is a typed array (optional).\n * @param {boolean | null | undefined} [end=false]\n * Whether this is the last chunk (default: `false`).\n * @returns {Array}\n * Chunks.\n */\n\nconst search = /[\\0\\t\\n\\r]/g;\n\n/**\n * @returns {Preprocessor}\n * Preprocess a value.\n */\nexport function preprocess() {\n let column = 1;\n let buffer = '';\n /** @type {boolean | undefined} */\n let start = true;\n /** @type {boolean | undefined} */\n let atCarriageReturn;\n return preprocessor;\n\n /** @type {Preprocessor} */\n // eslint-disable-next-line complexity\n function preprocessor(value, encoding, end) {\n /** @type {Array} */\n const chunks = [];\n /** @type {RegExpMatchArray | null} */\n let match;\n /** @type {number} */\n let next;\n /** @type {number} */\n let startPosition;\n /** @type {number} */\n let endPosition;\n /** @type {Code} */\n let code;\n value = buffer + (typeof value === 'string' ? value.toString() : new TextDecoder(encoding || undefined).decode(value));\n startPosition = 0;\n buffer = '';\n if (start) {\n // To do: `markdown-rs` actually parses BOMs (byte order mark).\n if (value.charCodeAt(0) === 65279) {\n startPosition++;\n }\n start = undefined;\n }\n while (startPosition < value.length) {\n search.lastIndex = startPosition;\n match = search.exec(value);\n endPosition = match && match.index !== undefined ? match.index : value.length;\n code = value.charCodeAt(endPosition);\n if (!match) {\n buffer = value.slice(startPosition);\n break;\n }\n if (code === 10 && startPosition === endPosition && atCarriageReturn) {\n chunks.push(-3);\n atCarriageReturn = undefined;\n } else {\n if (atCarriageReturn) {\n chunks.push(-5);\n atCarriageReturn = undefined;\n }\n if (startPosition < endPosition) {\n chunks.push(value.slice(startPosition, endPosition));\n column += endPosition - startPosition;\n }\n switch (code) {\n case 0:\n {\n chunks.push(65533);\n column++;\n break;\n }\n case 9:\n {\n next = Math.ceil(column / 4) * 4;\n chunks.push(-2);\n while (column++ < next) chunks.push(-1);\n break;\n }\n case 10:\n {\n chunks.push(-4);\n column = 1;\n break;\n }\n default:\n {\n atCarriageReturn = true;\n column = 1;\n }\n }\n }\n startPosition = endPosition + 1;\n }\n if (end) {\n if (atCarriageReturn) chunks.push(-5);\n if (buffer) chunks.push(buffer);\n chunks.push(null);\n }\n return chunks;\n }\n}","/**\n * Turn the number (in string form as either hexa- or plain decimal) coming from\n * a numeric character reference into a character.\n *\n * Sort of like `String.fromCodePoint(Number.parseInt(value, base))`, but makes\n * non-characters and control characters safe.\n *\n * @param {string} value\n * Value to decode.\n * @param {number} base\n * Numeric base.\n * @returns {string}\n * Character.\n */\nexport function decodeNumericCharacterReference(value, base) {\n const code = Number.parseInt(value, base);\n if (\n // C0 except for HT, LF, FF, CR, space.\n code < 9 || code === 11 || code > 13 && code < 32 ||\n // Control character (DEL) of C0, and C1 controls.\n code > 126 && code < 160 ||\n // Lone high surrogates and low surrogates.\n code > 55_295 && code < 57_344 ||\n // Noncharacters.\n code > 64_975 && code < 65_008 || /* eslint-disable no-bitwise */\n (code & 65_535) === 65_535 || (code & 65_535) === 65_534 || /* eslint-enable no-bitwise */\n // Out of range\n code > 1_114_111) {\n return \"\\uFFFD\";\n }\n return String.fromCodePoint(code);\n}","import { decodeNamedCharacterReference } from 'decode-named-character-reference';\nimport { decodeNumericCharacterReference } from 'micromark-util-decode-numeric-character-reference';\nconst characterEscapeOrReference = /\\\\([!-/:-@[-`{-~])|&(#(?:\\d{1,7}|x[\\da-f]{1,6})|[\\da-z]{1,31});/gi;\n\n/**\n * Decode markdown strings (which occur in places such as fenced code info\n * strings, destinations, labels, and titles).\n *\n * The “string” content type allows character escapes and -references.\n * This decodes those.\n *\n * @param {string} value\n * Value to decode.\n * @returns {string}\n * Decoded value.\n */\nexport function decodeString(value) {\n return value.replace(characterEscapeOrReference, decode);\n}\n\n/**\n * @param {string} $0\n * Match.\n * @param {string} $1\n * Character escape.\n * @param {string} $2\n * Character reference.\n * @returns {string}\n * Decoded value\n */\nfunction decode($0, $1, $2) {\n if ($1) {\n // Escape.\n return $1;\n }\n\n // Reference.\n const head = $2.charCodeAt(0);\n if (head === 35) {\n const head = $2.charCodeAt(1);\n const hex = head === 120 || head === 88;\n return decodeNumericCharacterReference($2.slice(hex ? 2 : 1), hex ? 16 : 10);\n }\n return decodeNamedCharacterReference($2) || $0;\n}","/**\n * @import {\n * Break,\n * Blockquote,\n * Code,\n * Definition,\n * Emphasis,\n * Heading,\n * Html,\n * Image,\n * InlineCode,\n * Link,\n * ListItem,\n * List,\n * Nodes,\n * Paragraph,\n * PhrasingContent,\n * ReferenceType,\n * Root,\n * Strong,\n * Text,\n * ThematicBreak\n * } from 'mdast'\n * @import {\n * Encoding,\n * Event,\n * Token,\n * Value\n * } from 'micromark-util-types'\n * @import {Point} from 'unist'\n * @import {\n * CompileContext,\n * CompileData,\n * Config,\n * Extension,\n * Handle,\n * OnEnterError,\n * Options\n * } from './types.js'\n */\n\nimport { toString } from 'mdast-util-to-string';\nimport { parse, postprocess, preprocess } from 'micromark';\nimport { decodeNumericCharacterReference } from 'micromark-util-decode-numeric-character-reference';\nimport { decodeString } from 'micromark-util-decode-string';\nimport { normalizeIdentifier } from 'micromark-util-normalize-identifier';\nimport { decodeNamedCharacterReference } from 'decode-named-character-reference';\nimport { stringifyPosition } from 'unist-util-stringify-position';\nconst own = {}.hasOwnProperty;\n\n/**\n * Turn markdown into a syntax tree.\n *\n * @overload\n * @param {Value} value\n * @param {Encoding | null | undefined} [encoding]\n * @param {Options | null | undefined} [options]\n * @returns {Root}\n *\n * @overload\n * @param {Value} value\n * @param {Options | null | undefined} [options]\n * @returns {Root}\n *\n * @param {Value} value\n * Markdown to parse.\n * @param {Encoding | Options | null | undefined} [encoding]\n * Character encoding for when `value` is `Buffer`.\n * @param {Options | null | undefined} [options]\n * Configuration.\n * @returns {Root}\n * mdast tree.\n */\nexport function fromMarkdown(value, encoding, options) {\n if (typeof encoding !== 'string') {\n options = encoding;\n encoding = undefined;\n }\n return compiler(options)(postprocess(parse(options).document().write(preprocess()(value, encoding, true))));\n}\n\n/**\n * Note this compiler only understand complete buffering, not streaming.\n *\n * @param {Options | null | undefined} [options]\n */\nfunction compiler(options) {\n /** @type {Config} */\n const config = {\n transforms: [],\n canContainEols: ['emphasis', 'fragment', 'heading', 'paragraph', 'strong'],\n enter: {\n autolink: opener(link),\n autolinkProtocol: onenterdata,\n autolinkEmail: onenterdata,\n atxHeading: opener(heading),\n blockQuote: opener(blockQuote),\n characterEscape: onenterdata,\n characterReference: onenterdata,\n codeFenced: opener(codeFlow),\n codeFencedFenceInfo: buffer,\n codeFencedFenceMeta: buffer,\n codeIndented: opener(codeFlow, buffer),\n codeText: opener(codeText, buffer),\n codeTextData: onenterdata,\n data: onenterdata,\n codeFlowValue: onenterdata,\n definition: opener(definition),\n definitionDestinationString: buffer,\n definitionLabelString: buffer,\n definitionTitleString: buffer,\n emphasis: opener(emphasis),\n hardBreakEscape: opener(hardBreak),\n hardBreakTrailing: opener(hardBreak),\n htmlFlow: opener(html, buffer),\n htmlFlowData: onenterdata,\n htmlText: opener(html, buffer),\n htmlTextData: onenterdata,\n image: opener(image),\n label: buffer,\n link: opener(link),\n listItem: opener(listItem),\n listItemValue: onenterlistitemvalue,\n listOrdered: opener(list, onenterlistordered),\n listUnordered: opener(list),\n paragraph: opener(paragraph),\n reference: onenterreference,\n referenceString: buffer,\n resourceDestinationString: buffer,\n resourceTitleString: buffer,\n setextHeading: opener(heading),\n strong: opener(strong),\n thematicBreak: opener(thematicBreak)\n },\n exit: {\n atxHeading: closer(),\n atxHeadingSequence: onexitatxheadingsequence,\n autolink: closer(),\n autolinkEmail: onexitautolinkemail,\n autolinkProtocol: onexitautolinkprotocol,\n blockQuote: closer(),\n characterEscapeValue: onexitdata,\n characterReferenceMarkerHexadecimal: onexitcharacterreferencemarker,\n characterReferenceMarkerNumeric: onexitcharacterreferencemarker,\n characterReferenceValue: onexitcharacterreferencevalue,\n characterReference: onexitcharacterreference,\n codeFenced: closer(onexitcodefenced),\n codeFencedFence: onexitcodefencedfence,\n codeFencedFenceInfo: onexitcodefencedfenceinfo,\n codeFencedFenceMeta: onexitcodefencedfencemeta,\n codeFlowValue: onexitdata,\n codeIndented: closer(onexitcodeindented),\n codeText: closer(onexitcodetext),\n codeTextData: onexitdata,\n data: onexitdata,\n definition: closer(),\n definitionDestinationString: onexitdefinitiondestinationstring,\n definitionLabelString: onexitdefinitionlabelstring,\n definitionTitleString: onexitdefinitiontitlestring,\n emphasis: closer(),\n hardBreakEscape: closer(onexithardbreak),\n hardBreakTrailing: closer(onexithardbreak),\n htmlFlow: closer(onexithtmlflow),\n htmlFlowData: onexitdata,\n htmlText: closer(onexithtmltext),\n htmlTextData: onexitdata,\n image: closer(onexitimage),\n label: onexitlabel,\n labelText: onexitlabeltext,\n lineEnding: onexitlineending,\n link: closer(onexitlink),\n listItem: closer(),\n listOrdered: closer(),\n listUnordered: closer(),\n paragraph: closer(),\n referenceString: onexitreferencestring,\n resourceDestinationString: onexitresourcedestinationstring,\n resourceTitleString: onexitresourcetitlestring,\n resource: onexitresource,\n setextHeading: closer(onexitsetextheading),\n setextHeadingLineSequence: onexitsetextheadinglinesequence,\n setextHeadingText: onexitsetextheadingtext,\n strong: closer(),\n thematicBreak: closer()\n }\n };\n configure(config, (options || {}).mdastExtensions || []);\n\n /** @type {CompileData} */\n const data = {};\n return compile;\n\n /**\n * Turn micromark events into an mdast tree.\n *\n * @param {Array} events\n * Events.\n * @returns {Root}\n * mdast tree.\n */\n function compile(events) {\n /** @type {Root} */\n let tree = {\n type: 'root',\n children: []\n };\n /** @type {Omit} */\n const context = {\n stack: [tree],\n tokenStack: [],\n config,\n enter,\n exit,\n buffer,\n resume,\n data\n };\n /** @type {Array} */\n const listStack = [];\n let index = -1;\n while (++index < events.length) {\n // We preprocess lists to add `listItem` tokens, and to infer whether\n // items the list itself are spread out.\n if (events[index][1].type === \"listOrdered\" || events[index][1].type === \"listUnordered\") {\n if (events[index][0] === 'enter') {\n listStack.push(index);\n } else {\n const tail = listStack.pop();\n index = prepareList(events, tail, index);\n }\n }\n }\n index = -1;\n while (++index < events.length) {\n const handler = config[events[index][0]];\n if (own.call(handler, events[index][1].type)) {\n handler[events[index][1].type].call(Object.assign({\n sliceSerialize: events[index][2].sliceSerialize\n }, context), events[index][1]);\n }\n }\n\n // Handle tokens still being open.\n if (context.tokenStack.length > 0) {\n const tail = context.tokenStack[context.tokenStack.length - 1];\n const handler = tail[1] || defaultOnError;\n handler.call(context, undefined, tail[0]);\n }\n\n // Figure out `root` position.\n tree.position = {\n start: point(events.length > 0 ? events[0][1].start : {\n line: 1,\n column: 1,\n offset: 0\n }),\n end: point(events.length > 0 ? events[events.length - 2][1].end : {\n line: 1,\n column: 1,\n offset: 0\n })\n };\n\n // Call transforms.\n index = -1;\n while (++index < config.transforms.length) {\n tree = config.transforms[index](tree) || tree;\n }\n return tree;\n }\n\n /**\n * @param {Array} events\n * @param {number} start\n * @param {number} length\n * @returns {number}\n */\n function prepareList(events, start, length) {\n let index = start - 1;\n let containerBalance = -1;\n let listSpread = false;\n /** @type {Token | undefined} */\n let listItem;\n /** @type {number | undefined} */\n let lineIndex;\n /** @type {number | undefined} */\n let firstBlankLineIndex;\n /** @type {boolean | undefined} */\n let atMarker;\n while (++index <= length) {\n const event = events[index];\n switch (event[1].type) {\n case \"listUnordered\":\n case \"listOrdered\":\n case \"blockQuote\":\n {\n if (event[0] === 'enter') {\n containerBalance++;\n } else {\n containerBalance--;\n }\n atMarker = undefined;\n break;\n }\n case \"lineEndingBlank\":\n {\n if (event[0] === 'enter') {\n if (listItem && !atMarker && !containerBalance && !firstBlankLineIndex) {\n firstBlankLineIndex = index;\n }\n atMarker = undefined;\n }\n break;\n }\n case \"linePrefix\":\n case \"listItemValue\":\n case \"listItemMarker\":\n case \"listItemPrefix\":\n case \"listItemPrefixWhitespace\":\n {\n // Empty.\n\n break;\n }\n default:\n {\n atMarker = undefined;\n }\n }\n if (!containerBalance && event[0] === 'enter' && event[1].type === \"listItemPrefix\" || containerBalance === -1 && event[0] === 'exit' && (event[1].type === \"listUnordered\" || event[1].type === \"listOrdered\")) {\n if (listItem) {\n let tailIndex = index;\n lineIndex = undefined;\n while (tailIndex--) {\n const tailEvent = events[tailIndex];\n if (tailEvent[1].type === \"lineEnding\" || tailEvent[1].type === \"lineEndingBlank\") {\n if (tailEvent[0] === 'exit') continue;\n if (lineIndex) {\n events[lineIndex][1].type = \"lineEndingBlank\";\n listSpread = true;\n }\n tailEvent[1].type = \"lineEnding\";\n lineIndex = tailIndex;\n } else if (tailEvent[1].type === \"linePrefix\" || tailEvent[1].type === \"blockQuotePrefix\" || tailEvent[1].type === \"blockQuotePrefixWhitespace\" || tailEvent[1].type === \"blockQuoteMarker\" || tailEvent[1].type === \"listItemIndent\") {\n // Empty\n } else {\n break;\n }\n }\n if (firstBlankLineIndex && (!lineIndex || firstBlankLineIndex < lineIndex)) {\n listItem._spread = true;\n }\n\n // Fix position.\n listItem.end = Object.assign({}, lineIndex ? events[lineIndex][1].start : event[1].end);\n events.splice(lineIndex || index, 0, ['exit', listItem, event[2]]);\n index++;\n length++;\n }\n\n // Create a new list item.\n if (event[1].type === \"listItemPrefix\") {\n /** @type {Token} */\n const item = {\n type: 'listItem',\n _spread: false,\n start: Object.assign({}, event[1].start),\n // @ts-expect-error: we’ll add `end` in a second.\n end: undefined\n };\n listItem = item;\n events.splice(index, 0, ['enter', item, event[2]]);\n index++;\n length++;\n firstBlankLineIndex = undefined;\n atMarker = true;\n }\n }\n }\n events[start][1]._spread = listSpread;\n return length;\n }\n\n /**\n * Create an opener handle.\n *\n * @param {(token: Token) => Nodes} create\n * Create a node.\n * @param {Handle | undefined} [and]\n * Optional function to also run.\n * @returns {Handle}\n * Handle.\n */\n function opener(create, and) {\n return open;\n\n /**\n * @this {CompileContext}\n * @param {Token} token\n * @returns {undefined}\n */\n function open(token) {\n enter.call(this, create(token), token);\n if (and) and.call(this, token);\n }\n }\n\n /**\n * @type {CompileContext['buffer']}\n */\n function buffer() {\n this.stack.push({\n type: 'fragment',\n children: []\n });\n }\n\n /**\n * @type {CompileContext['enter']}\n */\n function enter(node, token, errorHandler) {\n const parent = this.stack[this.stack.length - 1];\n /** @type {Array} */\n const siblings = parent.children;\n siblings.push(node);\n this.stack.push(node);\n this.tokenStack.push([token, errorHandler || undefined]);\n node.position = {\n start: point(token.start),\n // @ts-expect-error: `end` will be patched later.\n end: undefined\n };\n }\n\n /**\n * Create a closer handle.\n *\n * @param {Handle | undefined} [and]\n * Optional function to also run.\n * @returns {Handle}\n * Handle.\n */\n function closer(and) {\n return close;\n\n /**\n * @this {CompileContext}\n * @param {Token} token\n * @returns {undefined}\n */\n function close(token) {\n if (and) and.call(this, token);\n exit.call(this, token);\n }\n }\n\n /**\n * @type {CompileContext['exit']}\n */\n function exit(token, onExitError) {\n const node = this.stack.pop();\n const open = this.tokenStack.pop();\n if (!open) {\n throw new Error('Cannot close `' + token.type + '` (' + stringifyPosition({\n start: token.start,\n end: token.end\n }) + '): it’s not open');\n } else if (open[0].type !== token.type) {\n if (onExitError) {\n onExitError.call(this, token, open[0]);\n } else {\n const handler = open[1] || defaultOnError;\n handler.call(this, token, open[0]);\n }\n }\n node.position.end = point(token.end);\n }\n\n /**\n * @type {CompileContext['resume']}\n */\n function resume() {\n return toString(this.stack.pop());\n }\n\n //\n // Handlers.\n //\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n function onenterlistordered() {\n this.data.expectingFirstListItemValue = true;\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n function onenterlistitemvalue(token) {\n if (this.data.expectingFirstListItemValue) {\n const ancestor = this.stack[this.stack.length - 2];\n ancestor.start = Number.parseInt(this.sliceSerialize(token), 10);\n this.data.expectingFirstListItemValue = undefined;\n }\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n function onexitcodefencedfenceinfo() {\n const data = this.resume();\n const node = this.stack[this.stack.length - 1];\n node.lang = data;\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n function onexitcodefencedfencemeta() {\n const data = this.resume();\n const node = this.stack[this.stack.length - 1];\n node.meta = data;\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n function onexitcodefencedfence() {\n // Exit if this is the closing fence.\n if (this.data.flowCodeInside) return;\n this.buffer();\n this.data.flowCodeInside = true;\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n function onexitcodefenced() {\n const data = this.resume();\n const node = this.stack[this.stack.length - 1];\n node.value = data.replace(/^(\\r?\\n|\\r)|(\\r?\\n|\\r)$/g, '');\n this.data.flowCodeInside = undefined;\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n function onexitcodeindented() {\n const data = this.resume();\n const node = this.stack[this.stack.length - 1];\n node.value = data.replace(/(\\r?\\n|\\r)$/g, '');\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n function onexitdefinitionlabelstring(token) {\n const label = this.resume();\n const node = this.stack[this.stack.length - 1];\n node.label = label;\n node.identifier = normalizeIdentifier(this.sliceSerialize(token)).toLowerCase();\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n function onexitdefinitiontitlestring() {\n const data = this.resume();\n const node = this.stack[this.stack.length - 1];\n node.title = data;\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n function onexitdefinitiondestinationstring() {\n const data = this.resume();\n const node = this.stack[this.stack.length - 1];\n node.url = data;\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n function onexitatxheadingsequence(token) {\n const node = this.stack[this.stack.length - 1];\n if (!node.depth) {\n const depth = this.sliceSerialize(token).length;\n node.depth = depth;\n }\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n function onexitsetextheadingtext() {\n this.data.setextHeadingSlurpLineEnding = true;\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n function onexitsetextheadinglinesequence(token) {\n const node = this.stack[this.stack.length - 1];\n node.depth = this.sliceSerialize(token).codePointAt(0) === 61 ? 1 : 2;\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n function onexitsetextheading() {\n this.data.setextHeadingSlurpLineEnding = undefined;\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n\n function onenterdata(token) {\n const node = this.stack[this.stack.length - 1];\n /** @type {Array} */\n const siblings = node.children;\n let tail = siblings[siblings.length - 1];\n if (!tail || tail.type !== 'text') {\n // Add a new text node.\n tail = text();\n tail.position = {\n start: point(token.start),\n // @ts-expect-error: we’ll add `end` later.\n end: undefined\n };\n siblings.push(tail);\n }\n this.stack.push(tail);\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n\n function onexitdata(token) {\n const tail = this.stack.pop();\n tail.value += this.sliceSerialize(token);\n tail.position.end = point(token.end);\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n\n function onexitlineending(token) {\n const context = this.stack[this.stack.length - 1];\n // If we’re at a hard break, include the line ending in there.\n if (this.data.atHardBreak) {\n const tail = context.children[context.children.length - 1];\n tail.position.end = point(token.end);\n this.data.atHardBreak = undefined;\n return;\n }\n if (!this.data.setextHeadingSlurpLineEnding && config.canContainEols.includes(context.type)) {\n onenterdata.call(this, token);\n onexitdata.call(this, token);\n }\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n\n function onexithardbreak() {\n this.data.atHardBreak = true;\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n\n function onexithtmlflow() {\n const data = this.resume();\n const node = this.stack[this.stack.length - 1];\n node.value = data;\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n\n function onexithtmltext() {\n const data = this.resume();\n const node = this.stack[this.stack.length - 1];\n node.value = data;\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n\n function onexitcodetext() {\n const data = this.resume();\n const node = this.stack[this.stack.length - 1];\n node.value = data;\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n\n function onexitlink() {\n const node = this.stack[this.stack.length - 1];\n // Note: there are also `identifier` and `label` fields on this link node!\n // These are used / cleaned here.\n\n // To do: clean.\n if (this.data.inReference) {\n /** @type {ReferenceType} */\n const referenceType = this.data.referenceType || 'shortcut';\n node.type += 'Reference';\n // @ts-expect-error: mutate.\n node.referenceType = referenceType;\n // @ts-expect-error: mutate.\n delete node.url;\n delete node.title;\n } else {\n // @ts-expect-error: mutate.\n delete node.identifier;\n // @ts-expect-error: mutate.\n delete node.label;\n }\n this.data.referenceType = undefined;\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n\n function onexitimage() {\n const node = this.stack[this.stack.length - 1];\n // Note: there are also `identifier` and `label` fields on this link node!\n // These are used / cleaned here.\n\n // To do: clean.\n if (this.data.inReference) {\n /** @type {ReferenceType} */\n const referenceType = this.data.referenceType || 'shortcut';\n node.type += 'Reference';\n // @ts-expect-error: mutate.\n node.referenceType = referenceType;\n // @ts-expect-error: mutate.\n delete node.url;\n delete node.title;\n } else {\n // @ts-expect-error: mutate.\n delete node.identifier;\n // @ts-expect-error: mutate.\n delete node.label;\n }\n this.data.referenceType = undefined;\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n\n function onexitlabeltext(token) {\n const string = this.sliceSerialize(token);\n const ancestor = this.stack[this.stack.length - 2];\n // @ts-expect-error: stash this on the node, as it might become a reference\n // later.\n ancestor.label = decodeString(string);\n // @ts-expect-error: same as above.\n ancestor.identifier = normalizeIdentifier(string).toLowerCase();\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n\n function onexitlabel() {\n const fragment = this.stack[this.stack.length - 1];\n const value = this.resume();\n const node = this.stack[this.stack.length - 1];\n // Assume a reference.\n this.data.inReference = true;\n if (node.type === 'link') {\n /** @type {Array} */\n const children = fragment.children;\n node.children = children;\n } else {\n node.alt = value;\n }\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n\n function onexitresourcedestinationstring() {\n const data = this.resume();\n const node = this.stack[this.stack.length - 1];\n node.url = data;\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n\n function onexitresourcetitlestring() {\n const data = this.resume();\n const node = this.stack[this.stack.length - 1];\n node.title = data;\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n\n function onexitresource() {\n this.data.inReference = undefined;\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n\n function onenterreference() {\n this.data.referenceType = 'collapsed';\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n\n function onexitreferencestring(token) {\n const label = this.resume();\n const node = this.stack[this.stack.length - 1];\n // @ts-expect-error: stash this on the node, as it might become a reference\n // later.\n node.label = label;\n // @ts-expect-error: same as above.\n node.identifier = normalizeIdentifier(this.sliceSerialize(token)).toLowerCase();\n this.data.referenceType = 'full';\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n\n function onexitcharacterreferencemarker(token) {\n this.data.characterReferenceType = token.type;\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n function onexitcharacterreferencevalue(token) {\n const data = this.sliceSerialize(token);\n const type = this.data.characterReferenceType;\n /** @type {string} */\n let value;\n if (type) {\n value = decodeNumericCharacterReference(data, type === \"characterReferenceMarkerNumeric\" ? 10 : 16);\n this.data.characterReferenceType = undefined;\n } else {\n const result = decodeNamedCharacterReference(data);\n value = result;\n }\n const tail = this.stack[this.stack.length - 1];\n tail.value += value;\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n function onexitcharacterreference(token) {\n const tail = this.stack.pop();\n tail.position.end = point(token.end);\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n function onexitautolinkprotocol(token) {\n onexitdata.call(this, token);\n const node = this.stack[this.stack.length - 1];\n node.url = this.sliceSerialize(token);\n }\n\n /**\n * @this {CompileContext}\n * @type {Handle}\n */\n function onexitautolinkemail(token) {\n onexitdata.call(this, token);\n const node = this.stack[this.stack.length - 1];\n node.url = 'mailto:' + this.sliceSerialize(token);\n }\n\n //\n // Creaters.\n //\n\n /** @returns {Blockquote} */\n function blockQuote() {\n return {\n type: 'blockquote',\n children: []\n };\n }\n\n /** @returns {Code} */\n function codeFlow() {\n return {\n type: 'code',\n lang: null,\n meta: null,\n value: ''\n };\n }\n\n /** @returns {InlineCode} */\n function codeText() {\n return {\n type: 'inlineCode',\n value: ''\n };\n }\n\n /** @returns {Definition} */\n function definition() {\n return {\n type: 'definition',\n identifier: '',\n label: null,\n title: null,\n url: ''\n };\n }\n\n /** @returns {Emphasis} */\n function emphasis() {\n return {\n type: 'emphasis',\n children: []\n };\n }\n\n /** @returns {Heading} */\n function heading() {\n return {\n type: 'heading',\n // @ts-expect-error `depth` will be set later.\n depth: 0,\n children: []\n };\n }\n\n /** @returns {Break} */\n function hardBreak() {\n return {\n type: 'break'\n };\n }\n\n /** @returns {Html} */\n function html() {\n return {\n type: 'html',\n value: ''\n };\n }\n\n /** @returns {Image} */\n function image() {\n return {\n type: 'image',\n title: null,\n url: '',\n alt: null\n };\n }\n\n /** @returns {Link} */\n function link() {\n return {\n type: 'link',\n title: null,\n url: '',\n children: []\n };\n }\n\n /**\n * @param {Token} token\n * @returns {List}\n */\n function list(token) {\n return {\n type: 'list',\n ordered: token.type === 'listOrdered',\n start: null,\n spread: token._spread,\n children: []\n };\n }\n\n /**\n * @param {Token} token\n * @returns {ListItem}\n */\n function listItem(token) {\n return {\n type: 'listItem',\n spread: token._spread,\n checked: null,\n children: []\n };\n }\n\n /** @returns {Paragraph} */\n function paragraph() {\n return {\n type: 'paragraph',\n children: []\n };\n }\n\n /** @returns {Strong} */\n function strong() {\n return {\n type: 'strong',\n children: []\n };\n }\n\n /** @returns {Text} */\n function text() {\n return {\n type: 'text',\n value: ''\n };\n }\n\n /** @returns {ThematicBreak} */\n function thematicBreak() {\n return {\n type: 'thematicBreak'\n };\n }\n}\n\n/**\n * Copy a point-like value.\n *\n * @param {Point} d\n * Point-like value.\n * @returns {Point}\n * unist point.\n */\nfunction point(d) {\n return {\n line: d.line,\n column: d.column,\n offset: d.offset\n };\n}\n\n/**\n * @param {Config} combined\n * @param {Array | Extension>} extensions\n * @returns {undefined}\n */\nfunction configure(combined, extensions) {\n let index = -1;\n while (++index < extensions.length) {\n const value = extensions[index];\n if (Array.isArray(value)) {\n configure(combined, value);\n } else {\n extension(combined, value);\n }\n }\n}\n\n/**\n * @param {Config} combined\n * @param {Extension} extension\n * @returns {undefined}\n */\nfunction extension(combined, extension) {\n /** @type {keyof Extension} */\n let key;\n for (key in extension) {\n if (own.call(extension, key)) {\n switch (key) {\n case 'canContainEols':\n {\n const right = extension[key];\n if (right) {\n combined[key].push(...right);\n }\n break;\n }\n case 'transforms':\n {\n const right = extension[key];\n if (right) {\n combined[key].push(...right);\n }\n break;\n }\n case 'enter':\n case 'exit':\n {\n const right = extension[key];\n if (right) {\n Object.assign(combined[key], right);\n }\n break;\n }\n // No default\n }\n }\n }\n}\n\n/** @type {OnEnterError} */\nfunction defaultOnError(left, right) {\n if (left) {\n throw new Error('Cannot close `' + left.type + '` (' + stringifyPosition({\n start: left.start,\n end: left.end\n }) + '): a different token (`' + right.type + '`, ' + stringifyPosition({\n start: right.start,\n end: right.end\n }) + ') is open');\n } else {\n throw new Error('Cannot close document, a token (`' + right.type + '`, ' + stringifyPosition({\n start: right.start,\n end: right.end\n }) + ') is still open');\n }\n}","/**\n * @import {Event} from 'micromark-util-types'\n */\n\nimport { subtokenize } from 'micromark-util-subtokenize';\n\n/**\n * @param {Array} events\n * Events.\n * @returns {Array}\n * Events.\n */\nexport function postprocess(events) {\n while (!subtokenize(events)) {\n // Empty\n }\n return events;\n}","/**\n * @import {\n * Create,\n * FullNormalizedExtension,\n * InitialConstruct,\n * ParseContext,\n * ParseOptions\n * } from 'micromark-util-types'\n */\n\nimport { combineExtensions } from 'micromark-util-combine-extensions';\nimport { content } from './initialize/content.js';\nimport { document } from './initialize/document.js';\nimport { flow } from './initialize/flow.js';\nimport { string, text } from './initialize/text.js';\nimport * as defaultConstructs from './constructs.js';\nimport { createTokenizer } from './create-tokenizer.js';\n\n/**\n * @param {ParseOptions | null | undefined} [options]\n * Configuration (optional).\n * @returns {ParseContext}\n * Parser.\n */\nexport function parse(options) {\n const settings = options || {};\n const constructs = /** @type {FullNormalizedExtension} */\n combineExtensions([defaultConstructs, ...(settings.extensions || [])]);\n\n /** @type {ParseContext} */\n const parser = {\n constructs,\n content: create(content),\n defined: [],\n document: create(document),\n flow: create(flow),\n lazy: {},\n string: create(string),\n text: create(text)\n };\n return parser;\n\n /**\n * @param {InitialConstruct} initial\n * Construct to start with.\n * @returns {Create}\n * Create a tokenizer.\n */\n function create(initial) {\n return creator;\n /** @type {Create} */\n function creator(from) {\n return createTokenizer(parser, initial, from);\n }\n }\n}","/**\n * @typedef {import('mdast').Root} Root\n * @typedef {import('mdast-util-from-markdown').Options} FromMarkdownOptions\n * @typedef {import('unified').Parser} Parser\n * @typedef {import('unified').Processor} Processor\n */\n\n/**\n * @typedef {Omit} Options\n */\n\nimport {fromMarkdown} from 'mdast-util-from-markdown'\n\n/**\n * Aadd support for parsing from markdown.\n *\n * @param {Readonly | null | undefined} [options]\n * Configuration (optional).\n * @returns {undefined}\n * Nothing.\n */\nexport default function remarkParse(options) {\n /** @type {Processor} */\n // @ts-expect-error: TS in JSDoc generates wrong types if `this` is typed regularly.\n const self = this\n\n self.parser = parser\n\n /**\n * @type {Parser}\n */\n function parser(doc) {\n return fromMarkdown(doc, {\n ...self.data('settings'),\n ...options,\n // Note: these options are not in the readme.\n // The goal is for them to be set by plugins on `data` instead of being\n // passed by users.\n extensions: self.data('micromarkExtensions') || [],\n mdastExtensions: self.data('fromMarkdownExtensions') || []\n })\n }\n}\n","import { asciiAlphanumeric } from 'micromark-util-character';\nimport { encode } from 'micromark-util-encode';\n/**\n * Make a value safe for injection as a URL.\n *\n * This encodes unsafe characters with percent-encoding and skips already\n * encoded sequences (see `normalizeUri`).\n * Further unsafe characters are encoded as character references (see\n * `micromark-util-encode`).\n *\n * A regex of allowed protocols can be given, in which case the URL is\n * sanitized.\n * For example, `/^(https?|ircs?|mailto|xmpp)$/i` can be used for `a[href]`, or\n * `/^https?$/i` for `img[src]` (this is what `github.com` allows).\n * If the URL includes an unknown protocol (one not matched by `protocol`, such\n * as a dangerous example, `javascript:`), the value is ignored.\n *\n * @param {string | null | undefined} url\n * URI to sanitize.\n * @param {RegExp | null | undefined} [protocol]\n * Allowed protocols.\n * @returns {string}\n * Sanitized URI.\n */\nexport function sanitizeUri(url, protocol) {\n const value = encode(normalizeUri(url || ''));\n if (!protocol) {\n return value;\n }\n const colon = value.indexOf(':');\n const questionMark = value.indexOf('?');\n const numberSign = value.indexOf('#');\n const slash = value.indexOf('/');\n if (\n // If there is no protocol, it’s relative.\n colon < 0 ||\n // If the first colon is after a `?`, `#`, or `/`, it’s not a protocol.\n slash > -1 && colon > slash || questionMark > -1 && colon > questionMark || numberSign > -1 && colon > numberSign ||\n // It is a protocol, it should be allowed.\n protocol.test(value.slice(0, colon))) {\n return value;\n }\n return '';\n}\n\n/**\n * Normalize a URL.\n *\n * Encode unsafe characters with percent-encoding, skipping already encoded\n * sequences.\n *\n * @param {string} value\n * URI to normalize.\n * @returns {string}\n * Normalized URI.\n */\nexport function normalizeUri(value) {\n /** @type {Array} */\n const result = [];\n let index = -1;\n let start = 0;\n let skip = 0;\n while (++index < value.length) {\n const code = value.charCodeAt(index);\n /** @type {string} */\n let replace = '';\n\n // A correct percent encoded value.\n if (code === 37 && asciiAlphanumeric(value.charCodeAt(index + 1)) && asciiAlphanumeric(value.charCodeAt(index + 2))) {\n skip = 2;\n }\n // ASCII.\n else if (code < 128) {\n if (!/[!#$&-;=?-Z_a-z~]/.test(String.fromCharCode(code))) {\n replace = String.fromCharCode(code);\n }\n }\n // Astral.\n else if (code > 55_295 && code < 57_344) {\n const next = value.charCodeAt(index + 1);\n\n // A correct surrogate pair.\n if (code < 56_320 && next > 56_319 && next < 57_344) {\n replace = String.fromCharCode(code, next);\n skip = 1;\n }\n // Lone surrogate.\n else {\n replace = \"\\uFFFD\";\n }\n }\n // Unicode.\n else {\n replace = String.fromCharCode(code);\n }\n if (replace) {\n result.push(value.slice(start, index), encodeURIComponent(replace));\n start = index + skip + 1;\n replace = '';\n }\n if (skip) {\n index += skip;\n skip = 0;\n }\n }\n return result.join('') + value.slice(start);\n}","/**\n * @typedef {import('hast').Element} Element\n * @typedef {import('hast').ElementContent} ElementContent\n *\n * @typedef {import('./state.js').State} State\n */\n\n/**\n * @callback FootnoteBackContentTemplate\n * Generate content for the backreference dynamically.\n *\n * For the following markdown:\n *\n * ```markdown\n * Alpha[^micromark], bravo[^micromark], and charlie[^remark].\n *\n * [^remark]: things about remark\n * [^micromark]: things about micromark\n * ```\n *\n * This function will be called with:\n *\n * * `0` and `0` for the backreference from `things about micromark` to\n * `alpha`, as it is the first used definition, and the first call to it\n * * `0` and `1` for the backreference from `things about micromark` to\n * `bravo`, as it is the first used definition, and the second call to it\n * * `1` and `0` for the backreference from `things about remark` to\n * `charlie`, as it is the second used definition\n * @param {number} referenceIndex\n * Index of the definition in the order that they are first referenced,\n * 0-indexed.\n * @param {number} rereferenceIndex\n * Index of calls to the same definition, 0-indexed.\n * @returns {Array | ElementContent | string}\n * Content for the backreference when linking back from definitions to their\n * reference.\n *\n * @callback FootnoteBackLabelTemplate\n * Generate a back label dynamically.\n *\n * For the following markdown:\n *\n * ```markdown\n * Alpha[^micromark], bravo[^micromark], and charlie[^remark].\n *\n * [^remark]: things about remark\n * [^micromark]: things about micromark\n * ```\n *\n * This function will be called with:\n *\n * * `0` and `0` for the backreference from `things about micromark` to\n * `alpha`, as it is the first used definition, and the first call to it\n * * `0` and `1` for the backreference from `things about micromark` to\n * `bravo`, as it is the first used definition, and the second call to it\n * * `1` and `0` for the backreference from `things about remark` to\n * `charlie`, as it is the second used definition\n * @param {number} referenceIndex\n * Index of the definition in the order that they are first referenced,\n * 0-indexed.\n * @param {number} rereferenceIndex\n * Index of calls to the same definition, 0-indexed.\n * @returns {string}\n * Back label to use when linking back from definitions to their reference.\n */\n\nimport structuredClone from '@ungap/structured-clone'\nimport {normalizeUri} from 'micromark-util-sanitize-uri'\n\n/**\n * Generate the default content that GitHub uses on backreferences.\n *\n * @param {number} _\n * Index of the definition in the order that they are first referenced,\n * 0-indexed.\n * @param {number} rereferenceIndex\n * Index of calls to the same definition, 0-indexed.\n * @returns {Array}\n * Content.\n */\nexport function defaultFootnoteBackContent(_, rereferenceIndex) {\n /** @type {Array} */\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 * Generate the default label that GitHub uses on backreferences.\n *\n * @param {number} referenceIndex\n * Index of the definition in the order that they are first referenced,\n * 0-indexed.\n * @param {number} rereferenceIndex\n * Index of calls to the same definition, 0-indexed.\n * @returns {string}\n * Label.\n */\nexport function defaultFootnoteBackLabel(referenceIndex, rereferenceIndex) {\n return (\n 'Back to reference ' +\n (referenceIndex + 1) +\n (rereferenceIndex > 1 ? '-' + rereferenceIndex : '')\n )\n}\n\n/**\n * Generate a hast footer for called footnote definitions.\n *\n * @param {State} state\n * Info passed around.\n * @returns {Element | undefined}\n * `section` element or `undefined`.\n */\n// eslint-disable-next-line complexity\nexport function footer(state) {\n const clobberPrefix =\n typeof state.options.clobberPrefix === 'string'\n ? state.options.clobberPrefix\n : 'user-content-'\n const footnoteBackContent =\n state.options.footnoteBackContent || defaultFootnoteBackContent\n const footnoteBackLabel =\n state.options.footnoteBackLabel || defaultFootnoteBackLabel\n const footnoteLabel = state.options.footnoteLabel || 'Footnotes'\n const footnoteLabelTagName = state.options.footnoteLabelTagName || 'h2'\n const footnoteLabelProperties = state.options.footnoteLabelProperties || {\n className: ['sr-only']\n }\n /** @type {Array} */\n const listItems = []\n let referenceIndex = -1\n\n while (++referenceIndex < state.footnoteOrder.length) {\n const definition = state.footnoteById.get(\n state.footnoteOrder[referenceIndex]\n )\n\n if (!definition) {\n continue\n }\n\n const content = state.all(definition)\n const id = String(definition.identifier).toUpperCase()\n const safeId = normalizeUri(id.toLowerCase())\n let rereferenceIndex = 0\n /** @type {Array} */\n const backReferences = []\n const counts = state.footnoteCounts.get(id)\n\n // eslint-disable-next-line no-unmodified-loop-condition\n while (counts !== undefined && ++rereferenceIndex <= counts) {\n if (backReferences.length > 0) {\n backReferences.push({type: 'text', value: ' '})\n }\n\n let children =\n typeof footnoteBackContent === 'string'\n ? footnoteBackContent\n : footnoteBackContent(referenceIndex, rereferenceIndex)\n\n if (typeof children === 'string') {\n children = {type: 'text', value: children}\n }\n\n backReferences.push({\n type: 'element',\n tagName: 'a',\n properties: {\n href:\n '#' +\n clobberPrefix +\n 'fnref-' +\n safeId +\n (rereferenceIndex > 1 ? '-' + rereferenceIndex : ''),\n dataFootnoteBackref: '',\n ariaLabel:\n typeof footnoteBackLabel === 'string'\n ? footnoteBackLabel\n : footnoteBackLabel(referenceIndex, rereferenceIndex),\n className: ['data-footnote-backref']\n },\n children: Array.isArray(children) ? children : [children]\n })\n }\n\n const tail = content[content.length - 1]\n\n if (tail && tail.type === 'element' && tail.tagName === 'p') {\n const tailTail = tail.children[tail.children.length - 1]\n if (tailTail && tailTail.type === 'text') {\n tailTail.value += ' '\n } else {\n tail.children.push({type: 'text', value: ' '})\n }\n\n tail.children.push(...backReferences)\n } else {\n content.push(...backReferences)\n }\n\n /** @type {Element} */\n const listItem = {\n type: 'element',\n tagName: 'li',\n properties: {id: clobberPrefix + 'fn-' + safeId},\n children: state.wrap(content, true)\n }\n\n state.patch(definition, listItem)\n\n listItems.push(listItem)\n }\n\n if (listItems.length === 0) {\n return\n }\n\n return {\n type: 'element',\n tagName: 'section',\n properties: {dataFootnotes: true, className: ['footnotes']},\n children: [\n {\n type: 'element',\n tagName: footnoteLabelTagName,\n properties: {\n ...structuredClone(footnoteLabelProperties),\n id: 'footnote-label'\n },\n children: [{type: 'text', value: footnoteLabel}]\n },\n {type: 'text', value: '\\n'},\n {\n type: 'element',\n tagName: 'ol',\n properties: {},\n children: state.wrap(listItems, true)\n },\n {type: 'text', value: '\\n'}\n ]\n }\n}\n","/**\n * @typedef {import('hast').ElementContent} ElementContent\n *\n * @typedef {import('mdast').Nodes} Nodes\n * @typedef {import('mdast').Reference} Reference\n *\n * @typedef {import('./state.js').State} State\n */\n\n// Make VS Code show references to the above types.\n''\n\n/**\n * Return the content of a reference without definition as plain text.\n *\n * @param {State} state\n * Info passed around.\n * @param {Extract} node\n * Reference node (image, link).\n * @returns {Array}\n * hast content.\n */\nexport function revert(state, node) {\n const subtype = node.referenceType\n let suffix = ']'\n\n if (subtype === 'collapsed') {\n suffix += '[]'\n } else if (subtype === 'full') {\n suffix += '[' + (node.label || node.identifier) + ']'\n }\n\n if (node.type === 'imageReference') {\n return [{type: 'text', value: '![' + node.alt + suffix}]\n }\n\n const contents = state.all(node)\n const head = contents[0]\n\n if (head && head.type === 'text') {\n head.value = '[' + head.value\n } else {\n contents.unshift({type: 'text', value: '['})\n }\n\n const tail = contents[contents.length - 1]\n\n if (tail && tail.type === 'text') {\n tail.value += suffix\n } else {\n contents.push({type: 'text', value: suffix})\n }\n\n return contents\n}\n","/**\n * @typedef {import('hast').Element} Element\n * @typedef {import('hast').ElementContent} ElementContent\n * @typedef {import('hast').Properties} Properties\n * @typedef {import('mdast').ListItem} ListItem\n * @typedef {import('mdast').Parents} Parents\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 `listItem` node into hast.\n *\n * @param {State} state\n * Info passed around.\n * @param {ListItem} node\n * mdast node.\n * @param {Parents | undefined} parent\n * Parent of `node`.\n * @returns {Element}\n * hast node.\n */\nexport function listItem(state, node, parent) {\n const results = state.all(node)\n const loose = parent ? listLoose(parent) : listItemLoose(node)\n /** @type {Properties} */\n const properties = {}\n /** @type {Array} */\n const children = []\n\n if (typeof node.checked === 'boolean') {\n const head = results[0]\n /** @type {Element} */\n let paragraph\n\n if (head && head.type === 'element' && head.tagName === 'p') {\n paragraph = head\n } else {\n paragraph = {type: 'element', tagName: 'p', properties: {}, children: []}\n results.unshift(paragraph)\n }\n\n if (paragraph.children.length > 0) {\n paragraph.children.unshift({type: 'text', value: ' '})\n }\n\n paragraph.children.unshift({\n type: 'element',\n tagName: 'input',\n properties: {type: 'checkbox', checked: node.checked, disabled: true},\n children: []\n })\n\n // According to github-markdown-css, this class hides bullet.\n // See: .\n properties.className = ['task-list-item']\n }\n\n let index = -1\n\n while (++index < results.length) {\n const child = results[index]\n\n // Add eols before nodes, except if this is a loose, first paragraph.\n if (\n loose ||\n index !== 0 ||\n child.type !== 'element' ||\n child.tagName !== 'p'\n ) {\n children.push({type: 'text', value: '\\n'})\n }\n\n if (child.type === 'element' && child.tagName === 'p' && !loose) {\n children.push(...child.children)\n } else {\n children.push(child)\n }\n }\n\n const tail = results[results.length - 1]\n\n // Add a final eol.\n if (tail && (loose || tail.type !== 'element' || tail.tagName !== 'p')) {\n children.push({type: 'text', value: '\\n'})\n }\n\n /** @type {Element} */\n const result = {type: 'element', tagName: 'li', properties, children}\n state.patch(node, result)\n return state.applyData(node, result)\n}\n\n/**\n * @param {Parents} node\n * @return {Boolean}\n */\nfunction listLoose(node) {\n let loose = false\n if (node.type === 'list') {\n loose = node.spread || false\n const children = node.children\n let index = -1\n\n while (!loose && ++index < children.length) {\n loose = listItemLoose(children[index])\n }\n }\n\n return loose\n}\n\n/**\n * @param {ListItem} node\n * @return {Boolean}\n */\nfunction listItemLoose(node) {\n const spread = node.spread\n\n return spread === null || spread === undefined\n ? node.children.length > 1\n : spread\n}\n","const tab = 9 /* `\\t` */\nconst space = 32 /* ` ` */\n\n/**\n * Remove initial and final spaces and tabs at the line breaks in `value`.\n * Does not trim initial and final spaces and tabs of the value itself.\n *\n * @param {string} value\n * Value to trim.\n * @returns {string}\n * Trimmed value.\n */\nexport function trimLines(value) {\n const source = String(value)\n const search = /\\r?\\n|\\r/g\n let match = search.exec(source)\n let last = 0\n /** @type {Array} */\n const lines = []\n\n while (match) {\n lines.push(\n trimLine(source.slice(last, match.index), last > 0, true),\n match[0]\n )\n\n last = match.index + match[0].length\n match = search.exec(source)\n }\n\n lines.push(trimLine(source.slice(last), last > 0, false))\n\n return lines.join('')\n}\n\n/**\n * @param {string} value\n * Line to trim.\n * @param {boolean} start\n * Whether to trim the start of the line.\n * @param {boolean} end\n * Whether to trim the end of the line.\n * @returns {string}\n * Trimmed line.\n */\nfunction trimLine(value, start, end) {\n let startIndex = 0\n let endIndex = value.length\n\n if (start) {\n let code = value.codePointAt(startIndex)\n\n while (code === tab || code === space) {\n startIndex++\n code = value.codePointAt(startIndex)\n }\n }\n\n if (end) {\n let code = value.codePointAt(endIndex - 1)\n\n while (code === tab || code === space) {\n endIndex--\n code = value.codePointAt(endIndex - 1)\n }\n }\n\n return endIndex > startIndex ? value.slice(startIndex, endIndex) : ''\n}\n","import {blockquote} from './blockquote.js'\nimport {hardBreak} from './break.js'\nimport {code} from './code.js'\nimport {strikethrough} from './delete.js'\nimport {emphasis} from './emphasis.js'\nimport {footnoteReference} from './footnote-reference.js'\nimport {heading} from './heading.js'\nimport {html} from './html.js'\nimport {imageReference} from './image-reference.js'\nimport {image} from './image.js'\nimport {inlineCode} from './inline-code.js'\nimport {linkReference} from './link-reference.js'\nimport {link} from './link.js'\nimport {listItem} from './list-item.js'\nimport {list} from './list.js'\nimport {paragraph} from './paragraph.js'\nimport {root} from './root.js'\nimport {strong} from './strong.js'\nimport {table} from './table.js'\nimport {tableRow} from './table-row.js'\nimport {tableCell} from './table-cell.js'\nimport {text} from './text.js'\nimport {thematicBreak} from './thematic-break.js'\n\n/**\n * Default handlers for nodes.\n *\n * @satisfies {import('../state.js').Handlers}\n */\nexport const handlers = {\n blockquote,\n break: hardBreak,\n code,\n delete: strikethrough,\n emphasis,\n footnoteReference,\n heading,\n html,\n imageReference,\n image,\n inlineCode,\n linkReference,\n link,\n listItem,\n list,\n paragraph,\n // @ts-expect-error: root is different, but hard to type.\n root,\n strong,\n table,\n tableCell,\n tableRow,\n text,\n thematicBreak,\n toml: ignore,\n yaml: ignore,\n definition: ignore,\n footnoteDefinition: ignore\n}\n\n// Return nothing for nodes that are ignored.\nfunction ignore() {\n return undefined\n}\n","/**\n * @typedef {import('hast').Element} Element\n * @typedef {import('mdast').Blockquote} Blockquote\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 `blockquote` node into hast.\n *\n * @param {State} state\n * Info passed around.\n * @param {Blockquote} node\n * mdast node.\n * @returns {Element}\n * hast node.\n */\nexport function blockquote(state, node) {\n /** @type {Element} */\n const result = {\n type: 'element',\n tagName: 'blockquote',\n properties: {},\n children: state.wrap(state.all(node), true)\n }\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').Break} Break\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 `break` node into hast.\n *\n * @param {State} state\n * Info passed around.\n * @param {Break} node\n * mdast node.\n * @returns {Array}\n * hast element content.\n */\nexport function hardBreak(state, node) {\n /** @type {Element} */\n const result = {type: 'element', tagName: 'br', properties: {}, children: []}\n state.patch(node, result)\n return [state.applyData(node, result), {type: 'text', value: '\\n'}]\n}\n","/**\n * @typedef {import('hast').Element} Element\n * @typedef {import('hast').Properties} Properties\n * @typedef {import('mdast').Code} Code\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 `code` node into hast.\n *\n * @param {State} state\n * Info passed around.\n * @param {Code} node\n * mdast node.\n * @returns {Element}\n * hast node.\n */\nexport function code(state, node) {\n const value = node.value ? node.value + '\\n' : ''\n /** @type {Properties} */\n const properties = {}\n\n if (node.lang) {\n properties.className = ['language-' + node.lang]\n }\n\n // Create ``.\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 const result = []\n let index = -1\n\n if (loose) {\n result.push({type: 'text', value: '\\n'})\n }\n\n while (++index < nodes.length) {\n if (index) result.push({type: 'text', value: '\\n'})\n result.push(nodes[index])\n }\n\n if (loose && nodes.length > 0) {\n result.push({type: 'text', value: '\\n'})\n }\n\n return result\n}\n\n/**\n * Trim spaces and tabs at the start of `value`.\n *\n * @param {string} value\n * Value to trim.\n * @returns {string}\n * Result.\n */\nfunction trimMarkdownSpaceStart(value) {\n let index = 0\n let code = value.charCodeAt(index)\n\n while (code === 9 || code === 32) {\n index++\n code = value.charCodeAt(index)\n }\n\n return value.slice(index)\n}\n","import objectWithoutPropertiesLoose from \"./objectWithoutPropertiesLoose.js\";\nfunction _objectWithoutProperties(e, t) {\n if (null == e) return {};\n var o,\n r,\n i = objectWithoutPropertiesLoose(e, t);\n if (Object.getOwnPropertySymbols) {\n var s = Object.getOwnPropertySymbols(e);\n for (r = 0; r < s.length; r++) o = s[r], t.includes(o) || {}.propertyIsEnumerable.call(e, o) && (i[o] = e[o]);\n }\n return i;\n}\nexport { _objectWithoutProperties as default };","/**\n * @typedef {import('hast').Nodes} HastNodes\n * @typedef {import('mdast').Nodes} MdastNodes\n * @typedef {import('./state.js').Options} Options\n */\n\nimport {ok as assert} from 'devlop'\nimport {footer} from './footer.js'\nimport {createState} from './state.js'\n\n/**\n * Transform mdast to hast.\n *\n * ##### Notes\n *\n * ###### HTML\n *\n * Raw HTML is available in mdast as `html` nodes and can be embedded in hast\n * as semistandard `raw` nodes.\n * Most utilities ignore `raw` nodes but two notable ones don’t:\n *\n * * `hast-util-to-html` also has an option `allowDangerousHtml` which will\n * output the raw HTML.\n * This is typically discouraged as noted by the option name but is useful\n * if you completely trust authors\n * * `hast-util-raw` can handle the raw embedded HTML strings by parsing them\n * into standard hast nodes (`element`, `text`, etc).\n * This is a heavy task as it needs a full HTML parser, but it is the only\n * way to support untrusted content\n *\n * ###### Footnotes\n *\n * Many options supported here relate to footnotes.\n * Footnotes are not specified by CommonMark, which we follow by default.\n * They are supported by GitHub, so footnotes can be enabled in markdown with\n * `mdast-util-gfm`.\n *\n * The options `footnoteBackLabel` and `footnoteLabel` define natural language\n * that explains footnotes, which is hidden for sighted users but shown to\n * assistive technology.\n * When your page is not in English, you must define translated values.\n *\n * Back references use ARIA attributes, but the section label itself uses a\n * heading that is hidden with an `sr-only` class.\n * To show it to sighted users, define different attributes in\n * `footnoteLabelProperties`.\n *\n * ###### Clobbering\n *\n * Footnotes introduces a problem, as it links footnote calls to footnote\n * definitions on the page through `id` attributes generated from user content,\n * which results in DOM clobbering.\n *\n * DOM clobbering is this:\n *\n * ```html\n * \n * \n * ```\n *\n * Elements by their ID are made available by browsers on the `window` object,\n * which is a security risk.\n * Using a prefix solves this problem.\n *\n * More information on how to handle clobbering and the prefix is explained in\n * Example: headings (DOM clobbering) in `rehype-sanitize`.\n *\n * ###### Unknown nodes\n *\n * Unknown nodes are nodes with a type that isn’t in `handlers` or `passThrough`.\n * The default behavior for unknown nodes is:\n *\n * * when the node has a `value` (and doesn’t have `data.hName`,\n * `data.hProperties`, or `data.hChildren`, see later), create a hast `text`\n * node\n * * otherwise, create a `` element (which could be changed with\n * `data.hName`), with its children mapped from mdast to hast as well\n *\n * This behavior can be changed by passing an `unknownHandler`.\n *\n * @param {MdastNodes} tree\n * mdast tree.\n * @param {Options | null | undefined} [options]\n * Configuration (optional).\n * @returns {HastNodes}\n * hast tree.\n */\nexport function toHast(tree, options) {\n const state = createState(tree, options)\n const node = state.one(tree, undefined)\n const foot = footer(state)\n /** @type {HastNodes} */\n const result = Array.isArray(node)\n ? {type: 'root', children: node}\n : node || {type: 'root', children: []}\n\n if (foot) {\n // If there’s a footer, there were definitions, meaning block\n // content.\n // So `result` is a parent node.\n assert('children' in result)\n result.children.push({type: 'text', value: '\\n'}, foot)\n }\n\n return result\n}\n","// Include `data` fields in mdast and `raw` nodes in hast.\n/// } Options\n *\n * @callback TransformBridge\n * Bridge-mode.\n *\n * Runs the destination with the new hast tree.\n * Discards result.\n * @param {MdastRoot} tree\n * Tree.\n * @param {VFile} file\n * File.\n * @returns {Promise}\n * Nothing.\n *\n * @callback TransformMutate\n * Mutate-mode.\n *\n * Further transformers run on the hast tree.\n * @param {MdastRoot} tree\n * Tree.\n * @param {VFile} file\n * File.\n * @returns {HastRoot}\n * Tree (hast).\n */\n\nimport {toHast} from 'mdast-util-to-hast'\n\n/**\n * Turn markdown into HTML.\n *\n * ##### Notes\n *\n * ###### Signature\n *\n * * if a processor is given, runs the (rehype) plugins used on it with a\n * hast tree, then discards the result (*bridge mode*)\n * * otherwise, returns a hast tree, the plugins used after `remarkRehype`\n * are rehype plugins (*mutate mode*)\n *\n * > 👉 **Note**: It’s highly unlikely that you want to pass a `processor`.\n *\n * ###### HTML\n *\n * Raw HTML is available in mdast as `html` nodes and can be embedded in hast\n * as semistandard `raw` nodes.\n * Most plugins ignore `raw` nodes but two notable ones don’t:\n *\n * * `rehype-stringify` also has an option `allowDangerousHtml` which will\n * output the raw HTML.\n * This is typically discouraged as noted by the option name but is useful if\n * you completely trust authors\n * * `rehype-raw` can handle the raw embedded HTML strings by parsing them\n * into standard hast nodes (`element`, `text`, etc).\n * This is a heavy task as it needs a full HTML parser, but it is the only way\n * to support untrusted content\n *\n * ###### Footnotes\n *\n * Many options supported here relate to footnotes.\n * Footnotes are not specified by CommonMark, which we follow by default.\n * They are supported by GitHub, so footnotes can be enabled in markdown with\n * `remark-gfm`.\n *\n * The options `footnoteBackLabel` and `footnoteLabel` define natural language\n * that explains footnotes, which is hidden for sighted users but shown to\n * assistive technology.\n * When your page is not in English, you must define translated values.\n *\n * Back references use ARIA attributes, but the section label itself uses a\n * heading that is hidden with an `sr-only` class.\n * To show it to sighted users, define different attributes in\n * `footnoteLabelProperties`.\n *\n * ###### Clobbering\n *\n * Footnotes introduces a problem, as it links footnote calls to footnote\n * definitions on the page through `id` attributes generated from user content,\n * which results in DOM clobbering.\n *\n * DOM clobbering is this:\n *\n * ```html\n * \n * \n * ```\n *\n * Elements by their ID are made available by browsers on the `window` object,\n * which is a security risk.\n * Using a prefix solves this problem.\n *\n * More information on how to handle clobbering and the prefix is explained in\n * *Example: headings (DOM clobbering)* in `rehype-sanitize`.\n *\n * ###### Unknown nodes\n *\n * Unknown nodes are nodes with a type that isn’t in `handlers` or `passThrough`.\n * The default behavior for unknown nodes is:\n *\n * * when the node has a `value` (and doesn’t have `data.hName`,\n * `data.hProperties`, or `data.hChildren`, see later), create a hast `text`\n * node\n * * otherwise, create a `` element (which could be changed with\n * `data.hName`), with its children mapped from mdast to hast as well\n *\n * This behavior can be changed by passing an `unknownHandler`.\n *\n * @overload\n * @param {Processor} processor\n * @param {Readonly | null | undefined} [options]\n * @returns {TransformBridge}\n *\n * @overload\n * @param {Readonly | null | undefined} [options]\n * @returns {TransformMutate}\n *\n * @param {Readonly | Processor | null | undefined} [destination]\n * Processor or configuration (optional).\n * @param {Readonly | null | undefined} [options]\n * When a processor was given, configuration (optional).\n * @returns {TransformBridge | TransformMutate}\n * Transform.\n */\nexport default function remarkRehype(destination, options) {\n if (destination && 'run' in destination) {\n /**\n * @type {TransformBridge}\n */\n return async function (tree, file) {\n // Cast because root in -> root out.\n const hastTree = /** @type {HastRoot} */ (\n toHast(tree, {file, ...options})\n )\n await destination.run(hastTree, file)\n }\n }\n\n /**\n * @type {TransformMutate}\n */\n return function (tree, file) {\n // Cast because root in -> root out.\n // To do: in the future, disallow ` || options` fallback.\n // With `unified-engine`, `destination` can be `undefined` but\n // `options` will be the file set.\n // We should not pass that as `options`.\n return /** @type {HastRoot} */ (\n toHast(tree, {file, ...(destination || options)})\n )\n }\n}\n","/**\n * Throw a given error.\n *\n * @param {Error|null|undefined} [error]\n * Maybe error.\n * @returns {asserts error is null|undefined}\n */\nexport function bail(error) {\n if (error) {\n throw error\n }\n}\n","export default function isPlainObject(value) {\n\tif (typeof value !== 'object' || value === null) {\n\t\treturn false;\n\t}\n\n\tconst prototype = Object.getPrototypeOf(value);\n\treturn (prototype === null || prototype === Object.prototype || Object.getPrototypeOf(prototype) === null) && !(Symbol.toStringTag in value) && !(Symbol.iterator in value);\n}\n","// To do: remove `void`s\n// To do: remove `null` from output of our APIs, allow it as user APIs.\n\n/**\n * @typedef {(error?: Error | null | undefined, ...output: Array) => void} Callback\n * Callback.\n *\n * @typedef {(...input: Array) => any} Middleware\n * Ware.\n *\n * @typedef Pipeline\n * Pipeline.\n * @property {Run} run\n * Run the pipeline.\n * @property {Use} use\n * Add middleware.\n *\n * @typedef {(...input: Array) => void} Run\n * Call all middleware.\n *\n * Calls `done` on completion with either an error or the output of the\n * last middleware.\n *\n * > 👉 **Note**: as the length of input defines whether async functions get a\n * > `next` function,\n * > it’s recommended to keep `input` at one value normally.\n\n *\n * @typedef {(fn: Middleware) => Pipeline} Use\n * Add middleware.\n */\n\n/**\n * Create new middleware.\n *\n * @returns {Pipeline}\n * Pipeline.\n */\nexport function trough() {\n /** @type {Array} */\n const fns = []\n /** @type {Pipeline} */\n const pipeline = {run, use}\n\n return pipeline\n\n /** @type {Run} */\n function run(...values) {\n let middlewareIndex = -1\n /** @type {Callback} */\n const callback = values.pop()\n\n if (typeof callback !== 'function') {\n throw new TypeError('Expected function as last argument, not ' + callback)\n }\n\n next(null, ...values)\n\n /**\n * Run the next `fn`, or we’re done.\n *\n * @param {Error | null | undefined} error\n * @param {Array} output\n */\n function next(error, ...output) {\n const fn = fns[++middlewareIndex]\n let index = -1\n\n if (error) {\n callback(error)\n return\n }\n\n // Copy non-nullish input into values.\n while (++index < values.length) {\n if (output[index] === null || output[index] === undefined) {\n output[index] = values[index]\n }\n }\n\n // Save the newly created `output` for the next call.\n values = output\n\n // Next or done.\n if (fn) {\n wrap(fn, next)(...output)\n } else {\n callback(null, ...output)\n }\n }\n }\n\n /** @type {Use} */\n function use(middelware) {\n if (typeof middelware !== 'function') {\n throw new TypeError(\n 'Expected `middelware` to be a function, not ' + middelware\n )\n }\n\n fns.push(middelware)\n return pipeline\n }\n}\n\n/**\n * Wrap `middleware` into a uniform interface.\n *\n * You can pass all input to the resulting function.\n * `callback` is then called with the output of `middleware`.\n *\n * If `middleware` accepts more arguments than the later given in input,\n * an extra `done` function is passed to it after that input,\n * which must be called by `middleware`.\n *\n * The first value in `input` is the main input value.\n * All other input values are the rest input values.\n * The values given to `callback` are the input values,\n * merged with every non-nullish output value.\n *\n * * if `middleware` throws an error,\n * returns a promise that is rejected,\n * or calls the given `done` function with an error,\n * `callback` is called with that error\n * * if `middleware` returns a value or returns a promise that is resolved,\n * that value is the main output value\n * * if `middleware` calls `done`,\n * all non-nullish values except for the first one (the error) overwrite the\n * output values\n *\n * @param {Middleware} middleware\n * Function to wrap.\n * @param {Callback} callback\n * Callback called with the output of `middleware`.\n * @returns {Run}\n * Wrapped middleware.\n */\nexport function wrap(middleware, callback) {\n /** @type {boolean} */\n let called\n\n return wrapped\n\n /**\n * Call `middleware`.\n * @this {any}\n * @param {Array} parameters\n * @returns {void}\n */\n function wrapped(...parameters) {\n const fnExpectsCallback = middleware.length > parameters.length\n /** @type {any} */\n let result\n\n if (fnExpectsCallback) {\n parameters.push(done)\n }\n\n try {\n result = middleware.apply(this, parameters)\n } catch (error) {\n const exception = /** @type {Error} */ (error)\n\n // Well, this is quite the pickle.\n // `middleware` received a callback and called it synchronously, but that\n // threw an error.\n // The only thing left to do is to throw the thing instead.\n if (fnExpectsCallback && called) {\n throw exception\n }\n\n return done(exception)\n }\n\n if (!fnExpectsCallback) {\n if (result && result.then && typeof result.then === 'function') {\n result.then(then, done)\n } else if (result instanceof Error) {\n done(result)\n } else {\n then(result)\n }\n }\n }\n\n /**\n * Call `callback`, only once.\n *\n * @type {Callback}\n */\n function done(error, ...output) {\n if (!called) {\n called = true\n callback(error, ...output)\n }\n }\n\n /**\n * Call `done` with one value.\n *\n * @param {any} [value]\n */\n function then(value) {\n done(null, value)\n }\n}\n","// A derivative work based on:\n// .\n// Which is licensed:\n//\n// MIT License\n//\n// Copyright (c) 2013 James Halliday\n//\n// Permission is hereby granted, free of charge, to any person obtaining a copy of\n// this software and associated documentation files (the \"Software\"), to deal in\n// the Software without restriction, including without limitation the rights to\n// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of\n// the Software, and to permit persons to whom the Software is furnished to do so,\n// subject to the following conditions:\n//\n// The above copyright notice and this permission notice shall be included in all\n// copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS\n// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR\n// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER\n// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN\n// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\n// A derivative work based on:\n//\n// Parts of that are extracted from Node’s internal `path` module:\n// .\n// Which is licensed:\n//\n// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n\nexport const minpath = {basename, dirname, extname, join, sep: '/'}\n\n/* eslint-disable max-depth, complexity */\n\n/**\n * Get the basename from a path.\n *\n * @param {string} path\n * File path.\n * @param {string | null | undefined} [extname]\n * Extension to strip.\n * @returns {string}\n * Stem or basename.\n */\nfunction basename(path, extname) {\n if (extname !== undefined && typeof extname !== 'string') {\n throw new TypeError('\"ext\" argument must be a string')\n }\n\n assertPath(path)\n let start = 0\n let end = -1\n let index = path.length\n /** @type {boolean | undefined} */\n let seenNonSlash\n\n if (\n extname === undefined ||\n extname.length === 0 ||\n extname.length > path.length\n ) {\n while (index--) {\n if (path.codePointAt(index) === 47 /* `/` */) {\n // If we reached a path separator that was not part of a set of path\n // separators at the end of the string, stop now.\n if (seenNonSlash) {\n start = index + 1\n break\n }\n } else if (end < 0) {\n // We saw the first non-path separator, mark this as the end of our\n // path component.\n seenNonSlash = true\n end = index + 1\n }\n }\n\n return end < 0 ? '' : path.slice(start, end)\n }\n\n if (extname === path) {\n return ''\n }\n\n let firstNonSlashEnd = -1\n let extnameIndex = extname.length - 1\n\n while (index--) {\n if (path.codePointAt(index) === 47 /* `/` */) {\n // If we reached a path separator that was not part of a set of path\n // separators at the end of the string, stop now.\n if (seenNonSlash) {\n start = index + 1\n break\n }\n } else {\n if (firstNonSlashEnd < 0) {\n // We saw the first non-path separator, remember this index in case\n // we need it if the extension ends up not matching.\n seenNonSlash = true\n firstNonSlashEnd = index + 1\n }\n\n if (extnameIndex > -1) {\n // Try to match the explicit extension.\n if (path.codePointAt(index) === extname.codePointAt(extnameIndex--)) {\n if (extnameIndex < 0) {\n // We matched the extension, so mark this as the end of our path\n // component\n end = index\n }\n } else {\n // Extension does not match, so our result is the entire path\n // component\n extnameIndex = -1\n end = firstNonSlashEnd\n }\n }\n }\n }\n\n if (start === end) {\n end = firstNonSlashEnd\n } else if (end < 0) {\n end = path.length\n }\n\n return path.slice(start, end)\n}\n\n/**\n * Get the dirname from a path.\n *\n * @param {string} path\n * File path.\n * @returns {string}\n * File path.\n */\nfunction dirname(path) {\n assertPath(path)\n\n if (path.length === 0) {\n return '.'\n }\n\n let end = -1\n let index = path.length\n /** @type {boolean | undefined} */\n let unmatchedSlash\n\n // Prefix `--` is important to not run on `0`.\n while (--index) {\n if (path.codePointAt(index) === 47 /* `/` */) {\n if (unmatchedSlash) {\n end = index\n break\n }\n } else if (!unmatchedSlash) {\n // We saw the first non-path separator\n unmatchedSlash = true\n }\n }\n\n return end < 0\n ? path.codePointAt(0) === 47 /* `/` */\n ? '/'\n : '.'\n : end === 1 && path.codePointAt(0) === 47 /* `/` */\n ? '//'\n : path.slice(0, end)\n}\n\n/**\n * Get an extname from a path.\n *\n * @param {string} path\n * File path.\n * @returns {string}\n * Extname.\n */\nfunction extname(path) {\n assertPath(path)\n\n let index = path.length\n\n let end = -1\n let startPart = 0\n let startDot = -1\n // Track the state of characters (if any) we see before our first dot and\n // after any path separator we find.\n let preDotState = 0\n /** @type {boolean | undefined} */\n let unmatchedSlash\n\n while (index--) {\n const code = path.codePointAt(index)\n\n if (code === 47 /* `/` */) {\n // If we reached a path separator that was not part of a set of path\n // separators at the end of the string, stop now.\n if (unmatchedSlash) {\n startPart = index + 1\n break\n }\n\n continue\n }\n\n if (end < 0) {\n // We saw the first non-path separator, mark this as the end of our\n // extension.\n unmatchedSlash = true\n end = index + 1\n }\n\n if (code === 46 /* `.` */) {\n // If this is our first dot, mark it as the start of our extension.\n if (startDot < 0) {\n startDot = index\n } else if (preDotState !== 1) {\n preDotState = 1\n }\n } else if (startDot > -1) {\n // We saw a non-dot and non-path separator before our dot, so we should\n // have a good chance at having a non-empty extension.\n preDotState = -1\n }\n }\n\n if (\n startDot < 0 ||\n end < 0 ||\n // We saw a non-dot character immediately before the dot.\n preDotState === 0 ||\n // The (right-most) trimmed path component is exactly `..`.\n (preDotState === 1 && startDot === end - 1 && startDot === startPart + 1)\n ) {\n return ''\n }\n\n return path.slice(startDot, end)\n}\n\n/**\n * Join segments from a path.\n *\n * @param {Array} segments\n * Path segments.\n * @returns {string}\n * File path.\n */\nfunction join(...segments) {\n let index = -1\n /** @type {string | undefined} */\n let joined\n\n while (++index < segments.length) {\n assertPath(segments[index])\n\n if (segments[index]) {\n joined =\n joined === undefined ? segments[index] : joined + '/' + segments[index]\n }\n }\n\n return joined === undefined ? '.' : normalize(joined)\n}\n\n/**\n * Normalize a basic file path.\n *\n * @param {string} path\n * File path.\n * @returns {string}\n * File path.\n */\n// Note: `normalize` is not exposed as `path.normalize`, so some code is\n// manually removed from it.\nfunction normalize(path) {\n assertPath(path)\n\n const absolute = path.codePointAt(0) === 47 /* `/` */\n\n // Normalize the path according to POSIX rules.\n let value = normalizeString(path, !absolute)\n\n if (value.length === 0 && !absolute) {\n value = '.'\n }\n\n if (value.length > 0 && path.codePointAt(path.length - 1) === 47 /* / */) {\n value += '/'\n }\n\n return absolute ? '/' + value : value\n}\n\n/**\n * Resolve `.` and `..` elements in a path with directory names.\n *\n * @param {string} path\n * File path.\n * @param {boolean} allowAboveRoot\n * Whether `..` can move above root.\n * @returns {string}\n * File path.\n */\nfunction normalizeString(path, allowAboveRoot) {\n let result = ''\n let lastSegmentLength = 0\n let lastSlash = -1\n let dots = 0\n let index = -1\n /** @type {number | undefined} */\n let code\n /** @type {number} */\n let lastSlashIndex\n\n while (++index <= path.length) {\n if (index < path.length) {\n code = path.codePointAt(index)\n } else if (code === 47 /* `/` */) {\n break\n } else {\n code = 47 /* `/` */\n }\n\n if (code === 47 /* `/` */) {\n if (lastSlash === index - 1 || dots === 1) {\n // Empty.\n } else if (lastSlash !== index - 1 && dots === 2) {\n if (\n result.length < 2 ||\n lastSegmentLength !== 2 ||\n result.codePointAt(result.length - 1) !== 46 /* `.` */ ||\n result.codePointAt(result.length - 2) !== 46 /* `.` */\n ) {\n if (result.length > 2) {\n lastSlashIndex = result.lastIndexOf('/')\n\n if (lastSlashIndex !== result.length - 1) {\n if (lastSlashIndex < 0) {\n result = ''\n lastSegmentLength = 0\n } else {\n result = result.slice(0, lastSlashIndex)\n lastSegmentLength = result.length - 1 - result.lastIndexOf('/')\n }\n\n lastSlash = index\n dots = 0\n continue\n }\n } else if (result.length > 0) {\n result = ''\n lastSegmentLength = 0\n lastSlash = index\n dots = 0\n continue\n }\n }\n\n if (allowAboveRoot) {\n result = result.length > 0 ? result + '/..' : '..'\n lastSegmentLength = 2\n }\n } else {\n if (result.length > 0) {\n result += '/' + path.slice(lastSlash + 1, index)\n } else {\n result = path.slice(lastSlash + 1, index)\n }\n\n lastSegmentLength = index - lastSlash - 1\n }\n\n lastSlash = index\n dots = 0\n } else if (code === 46 /* `.` */ && dots > -1) {\n dots++\n } else {\n dots = -1\n }\n }\n\n return result\n}\n\n/**\n * Make sure `path` is a string.\n *\n * @param {string} path\n * File path.\n * @returns {asserts path is string}\n * Nothing.\n */\nfunction assertPath(path) {\n if (typeof path !== 'string') {\n throw new TypeError(\n 'Path must be a string. Received ' + JSON.stringify(path)\n )\n }\n}\n\n/* eslint-enable max-depth, complexity */\n","// Somewhat based on:\n// .\n// But I don’t think one tiny line of code can be copyrighted. 😅\nexport const minproc = {cwd}\n\nfunction cwd() {\n return '/'\n}\n","/**\n * Checks if a value has the shape of a WHATWG URL object.\n *\n * Using a symbol or instanceof would not be able to recognize URL objects\n * coming from other implementations (e.g. in Electron), so instead we are\n * checking some well known properties for a lack of a better test.\n *\n * We use `href` and `protocol` as they are the only properties that are\n * easy to retrieve and calculate due to the lazy nature of the getters.\n *\n * We check for auth attribute to distinguish legacy url instance with\n * WHATWG URL instance.\n *\n * @param {unknown} fileUrlOrPath\n * File path or URL.\n * @returns {fileUrlOrPath is URL}\n * Whether it’s a URL.\n */\n// From: \nexport function isUrl(fileUrlOrPath) {\n return Boolean(\n fileUrlOrPath !== null &&\n typeof fileUrlOrPath === 'object' &&\n 'href' in fileUrlOrPath &&\n fileUrlOrPath.href &&\n 'protocol' in fileUrlOrPath &&\n fileUrlOrPath.protocol &&\n // @ts-expect-error: indexing is fine.\n fileUrlOrPath.auth === undefined\n )\n}\n","import {isUrl} from './minurl.shared.js'\n\nexport {isUrl} from './minurl.shared.js'\n\n// See: \n\n/**\n * @param {URL | string} path\n * File URL.\n * @returns {string}\n * File URL.\n */\nexport function urlToPath(path) {\n if (typeof path === 'string') {\n path = new URL(path)\n } else if (!isUrl(path)) {\n /** @type {NodeJS.ErrnoException} */\n const error = new TypeError(\n 'The \"path\" argument must be of type string or an instance of URL. Received `' +\n path +\n '`'\n )\n error.code = 'ERR_INVALID_ARG_TYPE'\n throw error\n }\n\n if (path.protocol !== 'file:') {\n /** @type {NodeJS.ErrnoException} */\n const error = new TypeError('The URL must be of scheme file')\n error.code = 'ERR_INVALID_URL_SCHEME'\n throw error\n }\n\n return getPathFromURLPosix(path)\n}\n\n/**\n * Get a path from a POSIX URL.\n *\n * @param {URL} url\n * URL.\n * @returns {string}\n * File path.\n */\nfunction getPathFromURLPosix(url) {\n if (url.hostname !== '') {\n /** @type {NodeJS.ErrnoException} */\n const error = new TypeError(\n 'File URL host must be \"localhost\" or empty on darwin'\n )\n error.code = 'ERR_INVALID_FILE_URL_HOST'\n throw error\n }\n\n const pathname = url.pathname\n let index = -1\n\n while (++index < pathname.length) {\n if (\n pathname.codePointAt(index) === 37 /* `%` */ &&\n pathname.codePointAt(index + 1) === 50 /* `2` */\n ) {\n const third = pathname.codePointAt(index + 2)\n if (third === 70 /* `F` */ || third === 102 /* `f` */) {\n /** @type {NodeJS.ErrnoException} */\n const error = new TypeError(\n 'File URL path must not include encoded / characters'\n )\n error.code = 'ERR_INVALID_FILE_URL_PATH'\n throw error\n }\n }\n }\n\n return decodeURIComponent(pathname)\n}\n","/**\n * @import {Node, Point, Position} from 'unist'\n * @import {Options as MessageOptions} from 'vfile-message'\n * @import {Compatible, Data, Map, Options, Value} from 'vfile'\n */\n\n/**\n * @typedef {object & {type: string, position?: Position | undefined}} NodeLike\n */\n\nimport {VFileMessage} from 'vfile-message'\nimport {minpath} from '#minpath'\nimport {minproc} from '#minproc'\nimport {urlToPath, isUrl} from '#minurl'\n\n/**\n * Order of setting (least specific to most), we need this because otherwise\n * `{stem: 'a', path: '~/b.js'}` would throw, as a path is needed before a\n * stem can be set.\n */\nconst order = /** @type {const} */ ([\n 'history',\n 'path',\n 'basename',\n 'stem',\n 'extname',\n 'dirname'\n])\n\nexport class VFile {\n /**\n * Create a new virtual file.\n *\n * `options` is treated as:\n *\n * * `string` or `Uint8Array` — `{value: options}`\n * * `URL` — `{path: options}`\n * * `VFile` — shallow copies its data over to the new file\n * * `object` — all fields are shallow copied over to the new file\n *\n * Path related fields are set in the following order (least specific to\n * most specific): `history`, `path`, `basename`, `stem`, `extname`,\n * `dirname`.\n *\n * You cannot set `dirname` or `extname` without setting either `history`,\n * `path`, `basename`, or `stem` too.\n *\n * @param {Compatible | null | undefined} [value]\n * File value.\n * @returns\n * New instance.\n */\n constructor(value) {\n /** @type {Options | VFile} */\n let options\n\n if (!value) {\n options = {}\n } else if (isUrl(value)) {\n options = {path: value}\n } else if (typeof value === 'string' || isUint8Array(value)) {\n options = {value}\n } else {\n options = value\n }\n\n /* eslint-disable no-unused-expressions */\n\n /**\n * Base of `path` (default: `process.cwd()` or `'/'` in browsers).\n *\n * @type {string}\n */\n // Prevent calling `cwd` (which could be expensive) if it’s not needed;\n // the empty string will be overridden in the next block.\n this.cwd = 'cwd' in options ? '' : minproc.cwd()\n\n /**\n * Place to store custom info (default: `{}`).\n *\n * It’s OK to store custom data directly on the file but moving it to\n * `data` is recommended.\n *\n * @type {Data}\n */\n this.data = {}\n\n /**\n * List of file paths the file moved between.\n *\n * The first is the original path and the last is the current path.\n *\n * @type {Array}\n */\n this.history = []\n\n /**\n * List of messages associated with the file.\n *\n * @type {Array}\n */\n this.messages = []\n\n /**\n * Raw value.\n *\n * @type {Value}\n */\n this.value\n\n // The below are non-standard, they are “well-known”.\n // As in, used in several tools.\n /**\n * Source map.\n *\n * This type is equivalent to the `RawSourceMap` type from the `source-map`\n * module.\n *\n * @type {Map | null | undefined}\n */\n this.map\n\n /**\n * Custom, non-string, compiled, representation.\n *\n * This is used by unified to store non-string results.\n * One example is when turning markdown into React nodes.\n *\n * @type {unknown}\n */\n this.result\n\n /**\n * Whether a file was saved to disk.\n *\n * This is used by vfile reporters.\n *\n * @type {boolean}\n */\n this.stored\n /* eslint-enable no-unused-expressions */\n\n // Set path related properties in the correct order.\n let index = -1\n\n while (++index < order.length) {\n const field = order[index]\n\n // Note: we specifically use `in` instead of `hasOwnProperty` to accept\n // `vfile`s too.\n if (\n field in options &&\n options[field] !== undefined &&\n options[field] !== null\n ) {\n // @ts-expect-error: TS doesn’t understand basic reality.\n this[field] = field === 'history' ? [...options[field]] : options[field]\n }\n }\n\n /** @type {string} */\n let field\n\n // Set non-path related properties.\n for (field in options) {\n // @ts-expect-error: fine to set other things.\n if (!order.includes(field)) {\n // @ts-expect-error: fine to set other things.\n this[field] = options[field]\n }\n }\n }\n\n /**\n * Get the basename (including extname) (example: `'index.min.js'`).\n *\n * @returns {string | undefined}\n * Basename.\n */\n get basename() {\n return typeof this.path === 'string'\n ? minpath.basename(this.path)\n : undefined\n }\n\n /**\n * Set basename (including extname) (`'index.min.js'`).\n *\n * Cannot contain path separators (`'/'` on unix, macOS, and browsers, `'\\'`\n * on windows).\n * Cannot be nullified (use `file.path = file.dirname` instead).\n *\n * @param {string} basename\n * Basename.\n * @returns {undefined}\n * Nothing.\n */\n set basename(basename) {\n assertNonEmpty(basename, 'basename')\n assertPart(basename, 'basename')\n this.path = minpath.join(this.dirname || '', basename)\n }\n\n /**\n * Get the parent path (example: `'~'`).\n *\n * @returns {string | undefined}\n * Dirname.\n */\n get dirname() {\n return typeof this.path === 'string'\n ? minpath.dirname(this.path)\n : undefined\n }\n\n /**\n * Set the parent path (example: `'~'`).\n *\n * Cannot be set if there’s no `path` yet.\n *\n * @param {string | undefined} dirname\n * Dirname.\n * @returns {undefined}\n * Nothing.\n */\n set dirname(dirname) {\n assertPath(this.basename, 'dirname')\n this.path = minpath.join(dirname || '', this.basename)\n }\n\n /**\n * Get the extname (including dot) (example: `'.js'`).\n *\n * @returns {string | undefined}\n * Extname.\n */\n get extname() {\n return typeof this.path === 'string'\n ? minpath.extname(this.path)\n : undefined\n }\n\n /**\n * Set the extname (including dot) (example: `'.js'`).\n *\n * Cannot contain path separators (`'/'` on unix, macOS, and browsers, `'\\'`\n * on windows).\n * Cannot be set if there’s no `path` yet.\n *\n * @param {string | undefined} extname\n * Extname.\n * @returns {undefined}\n * Nothing.\n */\n set extname(extname) {\n assertPart(extname, 'extname')\n assertPath(this.dirname, 'extname')\n\n if (extname) {\n if (extname.codePointAt(0) !== 46 /* `.` */) {\n throw new Error('`extname` must start with `.`')\n }\n\n if (extname.includes('.', 1)) {\n throw new Error('`extname` cannot contain multiple dots')\n }\n }\n\n this.path = minpath.join(this.dirname, this.stem + (extname || ''))\n }\n\n /**\n * Get the full path (example: `'~/index.min.js'`).\n *\n * @returns {string}\n * Path.\n */\n get path() {\n return this.history[this.history.length - 1]\n }\n\n /**\n * Set the full path (example: `'~/index.min.js'`).\n *\n * Cannot be nullified.\n * You can set a file URL (a `URL` object with a `file:` protocol) which will\n * be turned into a path with `url.fileURLToPath`.\n *\n * @param {URL | string} path\n * Path.\n * @returns {undefined}\n * Nothing.\n */\n set path(path) {\n if (isUrl(path)) {\n path = urlToPath(path)\n }\n\n assertNonEmpty(path, 'path')\n\n if (this.path !== path) {\n this.history.push(path)\n }\n }\n\n /**\n * Get the stem (basename w/o extname) (example: `'index.min'`).\n *\n * @returns {string | undefined}\n * Stem.\n */\n get stem() {\n return typeof this.path === 'string'\n ? minpath.basename(this.path, this.extname)\n : undefined\n }\n\n /**\n * Set the stem (basename w/o extname) (example: `'index.min'`).\n *\n * Cannot contain path separators (`'/'` on unix, macOS, and browsers, `'\\'`\n * on windows).\n * Cannot be nullified (use `file.path = file.dirname` instead).\n *\n * @param {string} stem\n * Stem.\n * @returns {undefined}\n * Nothing.\n */\n set stem(stem) {\n assertNonEmpty(stem, 'stem')\n assertPart(stem, 'stem')\n this.path = minpath.join(this.dirname || '', stem + (this.extname || ''))\n }\n\n // Normal prototypal methods.\n /**\n * Create a fatal message for `reason` associated with the file.\n *\n * The `fatal` field of the message is set to `true` (error; file not usable)\n * and the `file` field is set to the current file path.\n * The message is added to the `messages` field on `file`.\n *\n * > 🪦 **Note**: also has obsolete signatures.\n *\n * @overload\n * @param {string} reason\n * @param {MessageOptions | null | undefined} [options]\n * @returns {never}\n *\n * @overload\n * @param {string} reason\n * @param {Node | NodeLike | null | undefined} parent\n * @param {string | null | undefined} [origin]\n * @returns {never}\n *\n * @overload\n * @param {string} reason\n * @param {Point | Position | null | undefined} place\n * @param {string | null | undefined} [origin]\n * @returns {never}\n *\n * @overload\n * @param {string} reason\n * @param {string | null | undefined} [origin]\n * @returns {never}\n *\n * @overload\n * @param {Error | VFileMessage} cause\n * @param {Node | NodeLike | null | undefined} parent\n * @param {string | null | undefined} [origin]\n * @returns {never}\n *\n * @overload\n * @param {Error | VFileMessage} cause\n * @param {Point | Position | null | undefined} place\n * @param {string | null | undefined} [origin]\n * @returns {never}\n *\n * @overload\n * @param {Error | VFileMessage} cause\n * @param {string | null | undefined} [origin]\n * @returns {never}\n *\n * @param {Error | VFileMessage | string} causeOrReason\n * Reason for message, should use markdown.\n * @param {Node | NodeLike | MessageOptions | Point | Position | string | null | undefined} [optionsOrParentOrPlace]\n * Configuration (optional).\n * @param {string | null | undefined} [origin]\n * Place in code where the message originates (example:\n * `'my-package:my-rule'` or `'my-rule'`).\n * @returns {never}\n * Never.\n * @throws {VFileMessage}\n * Message.\n */\n fail(causeOrReason, optionsOrParentOrPlace, origin) {\n // @ts-expect-error: the overloads are fine.\n const message = this.message(causeOrReason, optionsOrParentOrPlace, origin)\n\n message.fatal = true\n\n throw message\n }\n\n /**\n * Create an info message for `reason` associated with the file.\n *\n * The `fatal` field of the message is set to `undefined` (info; change\n * likely not needed) and the `file` field is set to the current file path.\n * The message is added to the `messages` field on `file`.\n *\n * > 🪦 **Note**: also has obsolete signatures.\n *\n * @overload\n * @param {string} reason\n * @param {MessageOptions | null | undefined} [options]\n * @returns {VFileMessage}\n *\n * @overload\n * @param {string} reason\n * @param {Node | NodeLike | null | undefined} parent\n * @param {string | null | undefined} [origin]\n * @returns {VFileMessage}\n *\n * @overload\n * @param {string} reason\n * @param {Point | Position | null | undefined} place\n * @param {string | null | undefined} [origin]\n * @returns {VFileMessage}\n *\n * @overload\n * @param {string} reason\n * @param {string | null | undefined} [origin]\n * @returns {VFileMessage}\n *\n * @overload\n * @param {Error | VFileMessage} cause\n * @param {Node | NodeLike | null | undefined} parent\n * @param {string | null | undefined} [origin]\n * @returns {VFileMessage}\n *\n * @overload\n * @param {Error | VFileMessage} cause\n * @param {Point | Position | null | undefined} place\n * @param {string | null | undefined} [origin]\n * @returns {VFileMessage}\n *\n * @overload\n * @param {Error | VFileMessage} cause\n * @param {string | null | undefined} [origin]\n * @returns {VFileMessage}\n *\n * @param {Error | VFileMessage | string} causeOrReason\n * Reason for message, should use markdown.\n * @param {Node | NodeLike | MessageOptions | Point | Position | string | null | undefined} [optionsOrParentOrPlace]\n * Configuration (optional).\n * @param {string | null | undefined} [origin]\n * Place in code where the message originates (example:\n * `'my-package:my-rule'` or `'my-rule'`).\n * @returns {VFileMessage}\n * Message.\n */\n info(causeOrReason, optionsOrParentOrPlace, origin) {\n // @ts-expect-error: the overloads are fine.\n const message = this.message(causeOrReason, optionsOrParentOrPlace, origin)\n\n message.fatal = undefined\n\n return message\n }\n\n /**\n * Create a message for `reason` associated with the file.\n *\n * The `fatal` field of the message is set to `false` (warning; change may be\n * needed) and the `file` field is set to the current file path.\n * The message is added to the `messages` field on `file`.\n *\n * > 🪦 **Note**: also has obsolete signatures.\n *\n * @overload\n * @param {string} reason\n * @param {MessageOptions | null | undefined} [options]\n * @returns {VFileMessage}\n *\n * @overload\n * @param {string} reason\n * @param {Node | NodeLike | null | undefined} parent\n * @param {string | null | undefined} [origin]\n * @returns {VFileMessage}\n *\n * @overload\n * @param {string} reason\n * @param {Point | Position | null | undefined} place\n * @param {string | null | undefined} [origin]\n * @returns {VFileMessage}\n *\n * @overload\n * @param {string} reason\n * @param {string | null | undefined} [origin]\n * @returns {VFileMessage}\n *\n * @overload\n * @param {Error | VFileMessage} cause\n * @param {Node | NodeLike | null | undefined} parent\n * @param {string | null | undefined} [origin]\n * @returns {VFileMessage}\n *\n * @overload\n * @param {Error | VFileMessage} cause\n * @param {Point | Position | null | undefined} place\n * @param {string | null | undefined} [origin]\n * @returns {VFileMessage}\n *\n * @overload\n * @param {Error | VFileMessage} cause\n * @param {string | null | undefined} [origin]\n * @returns {VFileMessage}\n *\n * @param {Error | VFileMessage | string} causeOrReason\n * Reason for message, should use markdown.\n * @param {Node | NodeLike | MessageOptions | Point | Position | string | null | undefined} [optionsOrParentOrPlace]\n * Configuration (optional).\n * @param {string | null | undefined} [origin]\n * Place in code where the message originates (example:\n * `'my-package:my-rule'` or `'my-rule'`).\n * @returns {VFileMessage}\n * Message.\n */\n message(causeOrReason, optionsOrParentOrPlace, origin) {\n const message = new VFileMessage(\n // @ts-expect-error: the overloads are fine.\n causeOrReason,\n optionsOrParentOrPlace,\n origin\n )\n\n if (this.path) {\n message.name = this.path + ':' + message.name\n message.file = this.path\n }\n\n message.fatal = false\n\n this.messages.push(message)\n\n return message\n }\n\n /**\n * Serialize the file.\n *\n * > **Note**: which encodings are supported depends on the engine.\n * > For info on Node.js, see:\n * > .\n *\n * @param {string | null | undefined} [encoding='utf8']\n * Character encoding to understand `value` as when it’s a `Uint8Array`\n * (default: `'utf-8'`).\n * @returns {string}\n * Serialized file.\n */\n toString(encoding) {\n if (this.value === undefined) {\n return ''\n }\n\n if (typeof this.value === 'string') {\n return this.value\n }\n\n const decoder = new TextDecoder(encoding || undefined)\n return decoder.decode(this.value)\n }\n}\n\n/**\n * Assert that `part` is not a path (as in, does not contain `path.sep`).\n *\n * @param {string | null | undefined} part\n * File path part.\n * @param {string} name\n * Part name.\n * @returns {undefined}\n * Nothing.\n */\nfunction assertPart(part, name) {\n if (part && part.includes(minpath.sep)) {\n throw new Error(\n '`' + name + '` cannot be a path: did not expect `' + minpath.sep + '`'\n )\n }\n}\n\n/**\n * Assert that `part` is not empty.\n *\n * @param {string | undefined} part\n * Thing.\n * @param {string} name\n * Part name.\n * @returns {asserts part is string}\n * Nothing.\n */\nfunction assertNonEmpty(part, name) {\n if (!part) {\n throw new Error('`' + name + '` cannot be empty')\n }\n}\n\n/**\n * Assert `path` exists.\n *\n * @param {string | undefined} path\n * Path.\n * @param {string} name\n * Dependency name.\n * @returns {asserts path is string}\n * Nothing.\n */\nfunction assertPath(path, name) {\n if (!path) {\n throw new Error('Setting `' + name + '` requires `path` to be set too')\n }\n}\n\n/**\n * Assert `value` is an `Uint8Array`.\n *\n * @param {unknown} value\n * thing.\n * @returns {value is Uint8Array}\n * Whether `value` is an `Uint8Array`.\n */\nfunction isUint8Array(value) {\n return Boolean(\n value &&\n typeof value === 'object' &&\n 'byteLength' in value &&\n 'byteOffset' in value\n )\n}\n","export const CallableInstance =\n /**\n * @type {new , Result>(property: string | symbol) => (...parameters: Parameters) => Result}\n */\n (\n /** @type {unknown} */\n (\n /**\n * @this {Function}\n * @param {string | symbol} property\n * @returns {(...parameters: Array) => unknown}\n */\n function (property) {\n const self = this\n const constr = self.constructor\n const proto = /** @type {Record} */ (\n // Prototypes do exist.\n // type-coverage:ignore-next-line\n constr.prototype\n )\n const value = proto[property]\n /** @type {(...parameters: Array) => unknown} */\n const apply = function () {\n return value.apply(apply, arguments)\n }\n\n Object.setPrototypeOf(apply, proto)\n\n // Not needed for us in `unified`: we only call this on the `copy`\n // function,\n // and we don't need to add its fields (`length`, `name`)\n // over.\n // See also: GH-246.\n // const names = Object.getOwnPropertyNames(value)\n //\n // for (const p of names) {\n // const descriptor = Object.getOwnPropertyDescriptor(value, p)\n // if (descriptor) Object.defineProperty(apply, p, descriptor)\n // }\n\n return apply\n }\n )\n )\n","/**\n * @typedef {import('trough').Pipeline} Pipeline\n *\n * @typedef {import('unist').Node} Node\n *\n * @typedef {import('vfile').Compatible} Compatible\n * @typedef {import('vfile').Value} Value\n *\n * @typedef {import('../index.js').CompileResultMap} CompileResultMap\n * @typedef {import('../index.js').Data} Data\n * @typedef {import('../index.js').Settings} Settings\n */\n\n/**\n * @typedef {CompileResultMap[keyof CompileResultMap]} CompileResults\n * Acceptable results from compilers.\n *\n * To register custom results, add them to\n * {@linkcode CompileResultMap}.\n */\n\n/**\n * @template {Node} [Tree=Node]\n * The node that the compiler receives (default: `Node`).\n * @template {CompileResults} [Result=CompileResults]\n * The thing that the compiler yields (default: `CompileResults`).\n * @callback Compiler\n * A **compiler** handles the compiling of a syntax tree to something else\n * (in most cases, text) (TypeScript type).\n *\n * It is used in the stringify phase and called with a {@linkcode Node}\n * and {@linkcode VFile} representation of the document to compile.\n * It should return the textual representation of the given tree (typically\n * `string`).\n *\n * > **Note**: unified typically compiles by serializing: most compilers\n * > return `string` (or `Uint8Array`).\n * > Some compilers, such as the one configured with\n * > [`rehype-react`][rehype-react], return other values (in this case, a\n * > React tree).\n * > If you’re using a compiler that doesn’t serialize, expect different\n * > result values.\n * >\n * > To register custom results in TypeScript, add them to\n * > {@linkcode CompileResultMap}.\n *\n * [rehype-react]: https://github.com/rehypejs/rehype-react\n * @param {Tree} tree\n * Tree to compile.\n * @param {VFile} file\n * File associated with `tree`.\n * @returns {Result}\n * New content: compiled text (`string` or `Uint8Array`, for `file.value`) or\n * something else (for `file.result`).\n */\n\n/**\n * @template {Node} [Tree=Node]\n * The node that the parser yields (default: `Node`)\n * @callback Parser\n * A **parser** handles the parsing of text to a syntax tree.\n *\n * It is used in the parse phase and is called with a `string` and\n * {@linkcode VFile} of the document to parse.\n * It must return the syntax tree representation of the given file\n * ({@linkcode Node}).\n * @param {string} document\n * Document to parse.\n * @param {VFile} file\n * File associated with `document`.\n * @returns {Tree}\n * Node representing the given file.\n */\n\n/**\n * @typedef {(\n * Plugin, any, any> |\n * PluginTuple, any, any> |\n * Preset\n * )} Pluggable\n * Union of the different ways to add plugins and settings.\n */\n\n/**\n * @typedef {Array} PluggableList\n * List of plugins and presets.\n */\n\n// Note: we can’t use `callback` yet as it messes up `this`:\n// .\n/**\n * @template {Array} [PluginParameters=[]]\n * Arguments passed to the plugin (default: `[]`, the empty tuple).\n * @template {Node | string | undefined} [Input=Node]\n * Value that is expected as input (default: `Node`).\n *\n * * If the plugin returns a {@linkcode Transformer}, this\n * should be the node it expects.\n * * If the plugin sets a {@linkcode Parser}, this should be\n * `string`.\n * * If the plugin sets a {@linkcode Compiler}, this should be the\n * node it expects.\n * @template [Output=Input]\n * Value that is yielded as output (default: `Input`).\n *\n * * If the plugin returns a {@linkcode Transformer}, this\n * should be the node that that yields.\n * * If the plugin sets a {@linkcode Parser}, this should be the\n * node that it yields.\n * * If the plugin sets a {@linkcode Compiler}, this should be\n * result it yields.\n * @typedef {(\n * (this: Processor, ...parameters: PluginParameters) =>\n * Input extends string ? // Parser.\n * Output extends Node | undefined ? undefined | void : never :\n * Output extends CompileResults ? // Compiler.\n * Input extends Node | undefined ? undefined | void : never :\n * Transformer<\n * Input extends Node ? Input : Node,\n * Output extends Node ? Output : Node\n * > | undefined | void\n * )} Plugin\n * Single plugin.\n *\n * Plugins configure the processors they are applied on in the following\n * ways:\n *\n * * they change the processor, such as the parser, the compiler, or by\n * configuring data\n * * they specify how to handle trees and files\n *\n * In practice, they are functions that can receive options and configure the\n * processor (`this`).\n *\n * > **Note**: plugins are called when the processor is *frozen*, not when\n * > they are applied.\n */\n\n/**\n * Tuple of a plugin and its configuration.\n *\n * The first item is a plugin, the rest are its parameters.\n *\n * @template {Array} [TupleParameters=[]]\n * Arguments passed to the plugin (default: `[]`, the empty tuple).\n * @template {Node | string | undefined} [Input=undefined]\n * Value that is expected as input (optional).\n *\n * * If the plugin returns a {@linkcode Transformer}, this\n * should be the node it expects.\n * * If the plugin sets a {@linkcode Parser}, this should be\n * `string`.\n * * If the plugin sets a {@linkcode Compiler}, this should be the\n * node it expects.\n * @template [Output=undefined] (optional).\n * Value that is yielded as output.\n *\n * * If the plugin returns a {@linkcode Transformer}, this\n * should be the node that that yields.\n * * If the plugin sets a {@linkcode Parser}, this should be the\n * node that it yields.\n * * If the plugin sets a {@linkcode Compiler}, this should be\n * result it yields.\n * @typedef {(\n * [\n * plugin: Plugin,\n * ...parameters: TupleParameters\n * ]\n * )} PluginTuple\n */\n\n/**\n * @typedef Preset\n * Sharable configuration.\n *\n * They can contain plugins and settings.\n * @property {PluggableList | undefined} [plugins]\n * List of plugins and presets (optional).\n * @property {Settings | undefined} [settings]\n * Shared settings for parsers and compilers (optional).\n */\n\n/**\n * @template {VFile} [File=VFile]\n * The file that the callback receives (default: `VFile`).\n * @callback ProcessCallback\n * Callback called when the process is done.\n *\n * Called with either an error or a result.\n * @param {Error | undefined} [error]\n * Fatal error (optional).\n * @param {File | undefined} [file]\n * Processed file (optional).\n * @returns {undefined}\n * Nothing.\n */\n\n/**\n * @template {Node} [Tree=Node]\n * The tree that the callback receives (default: `Node`).\n * @callback RunCallback\n * Callback called when transformers are done.\n *\n * Called with either an error or results.\n * @param {Error | undefined} [error]\n * Fatal error (optional).\n * @param {Tree | undefined} [tree]\n * Transformed tree (optional).\n * @param {VFile | undefined} [file]\n * File (optional).\n * @returns {undefined}\n * Nothing.\n */\n\n/**\n * @template {Node} [Output=Node]\n * Node type that the transformer yields (default: `Node`).\n * @callback TransformCallback\n * Callback passed to transforms.\n *\n * If the signature of a `transformer` accepts a third argument, the\n * transformer may perform asynchronous operations, and must call it.\n * @param {Error | undefined} [error]\n * Fatal error to stop the process (optional).\n * @param {Output | undefined} [tree]\n * New, changed, tree (optional).\n * @param {VFile | undefined} [file]\n * New, changed, file (optional).\n * @returns {undefined}\n * Nothing.\n */\n\n/**\n * @template {Node} [Input=Node]\n * Node type that the transformer expects (default: `Node`).\n * @template {Node} [Output=Input]\n * Node type that the transformer yields (default: `Input`).\n * @callback Transformer\n * Transformers handle syntax trees and files.\n *\n * They are functions that are called each time a syntax tree and file are\n * passed through the run phase.\n * When an error occurs in them (either because it’s thrown, returned,\n * rejected, or passed to `next`), the process stops.\n *\n * The run phase is handled by [`trough`][trough], see its documentation for\n * the exact semantics of these functions.\n *\n * > **Note**: you should likely ignore `next`: don’t accept it.\n * > it supports callback-style async work.\n * > But promises are likely easier to reason about.\n *\n * [trough]: https://github.com/wooorm/trough#function-fninput-next\n * @param {Input} tree\n * Tree to handle.\n * @param {VFile} file\n * File to handle.\n * @param {TransformCallback