Urara-Blog/node_modules/.pnpm-store/v3/files/99/90c9d48033f3bc9f69ec3e94ed1391ba9a298de5877d72a28a8b47dd8a2d45d3cef78b6b9dbd4f8a6d5296c54b099f986f6d820ed502f474d98c0422b01645
2022-08-14 01:14:53 +08:00

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3.5 KiB
Text

/**
* @typedef {import('micromark-util-types').Construct} Construct
* @typedef {import('micromark-util-types').Resolver} Resolver
* @typedef {import('micromark-util-types').Tokenizer} Tokenizer
* @typedef {import('micromark-util-types').Token} Token
* @typedef {import('micromark-util-types').State} State
*/
import {factorySpace} from 'micromark-factory-space'
import {
markdownLineEnding,
markdownLineEndingOrSpace,
markdownSpace
} from 'micromark-util-character'
import {splice} from 'micromark-util-chunked'
/** @type {Construct} */
export const headingAtx = {
name: 'headingAtx',
tokenize: tokenizeHeadingAtx,
resolve: resolveHeadingAtx
}
/** @type {Resolver} */
function resolveHeadingAtx(events, context) {
let contentEnd = events.length - 2
let contentStart = 3
/** @type {Token} */
let content
/** @type {Token} */
let text // Prefix whitespace, part of the opening.
if (events[contentStart][1].type === 'whitespace') {
contentStart += 2
} // Suffix whitespace, part of the closing.
if (
contentEnd - 2 > contentStart &&
events[contentEnd][1].type === 'whitespace'
) {
contentEnd -= 2
}
if (
events[contentEnd][1].type === 'atxHeadingSequence' &&
(contentStart === contentEnd - 1 ||
(contentEnd - 4 > contentStart &&
events[contentEnd - 2][1].type === 'whitespace'))
) {
contentEnd -= contentStart + 1 === contentEnd ? 2 : 4
}
if (contentEnd > contentStart) {
content = {
type: 'atxHeadingText',
start: events[contentStart][1].start,
end: events[contentEnd][1].end
}
text = {
type: 'chunkText',
start: events[contentStart][1].start,
end: events[contentEnd][1].end,
// @ts-expect-error Constants are fine to assign.
contentType: 'text'
}
splice(events, contentStart, contentEnd - contentStart + 1, [
['enter', content, context],
['enter', text, context],
['exit', text, context],
['exit', content, context]
])
}
return events
}
/** @type {Tokenizer} */
function tokenizeHeadingAtx(effects, ok, nok) {
const self = this
let size = 0
return start
/** @type {State} */
function start(code) {
effects.enter('atxHeading')
effects.enter('atxHeadingSequence')
return fenceOpenInside(code)
}
/** @type {State} */
function fenceOpenInside(code) {
if (code === 35 && size++ < 6) {
effects.consume(code)
return fenceOpenInside
}
if (code === null || markdownLineEndingOrSpace(code)) {
effects.exit('atxHeadingSequence')
return self.interrupt ? ok(code) : headingBreak(code)
}
return nok(code)
}
/** @type {State} */
function headingBreak(code) {
if (code === 35) {
effects.enter('atxHeadingSequence')
return sequence(code)
}
if (code === null || markdownLineEnding(code)) {
effects.exit('atxHeading')
return ok(code)
}
if (markdownSpace(code)) {
return factorySpace(effects, headingBreak, 'whitespace')(code)
}
effects.enter('atxHeadingText')
return data(code)
}
/** @type {State} */
function sequence(code) {
if (code === 35) {
effects.consume(code)
return sequence
}
effects.exit('atxHeadingSequence')
return headingBreak(code)
}
/** @type {State} */
function data(code) {
if (code === null || code === 35 || markdownLineEndingOrSpace(code)) {
effects.exit('atxHeadingText')
return headingBreak(code)
}
effects.consume(code)
return data
}
}