Urara-Blog/node_modules/.pnpm-store/v3/files/f2/730ef025e4253a0f4a3f698510032fc9407b2d1381b5e2f7638a29670fd350cf71747f4e3ca22436ff41a6ce2f13f0993a21846089002fe461c559830e827d
2022-08-14 01:14:53 +08:00

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/**
* @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').Previous} Previous
* @typedef {import('micromark-util-types').Token} Token
* @typedef {import('micromark-util-types').State} State
*/
import {ok as assert} from 'uvu/assert'
import {markdownLineEnding} from 'micromark-util-character'
import {codes} from 'micromark-util-symbol/codes.js'
import {types} from 'micromark-util-symbol/types.js'
/** @type {Construct} */
export const codeText = {
name: 'codeText',
tokenize: tokenizeCodeText,
resolve: resolveCodeText,
previous
}
/** @type {Resolver} */
function resolveCodeText(events) {
let tailExitIndex = events.length - 4
let headEnterIndex = 3
/** @type {number} */
let index
/** @type {number|undefined} */
let enter
// If we start and end with an EOL or a space.
if (
(events[headEnterIndex][1].type === types.lineEnding ||
events[headEnterIndex][1].type === 'space') &&
(events[tailExitIndex][1].type === types.lineEnding ||
events[tailExitIndex][1].type === 'space')
) {
index = headEnterIndex
// And we have data.
while (++index < tailExitIndex) {
if (events[index][1].type === types.codeTextData) {
// Then we have padding.
events[headEnterIndex][1].type = types.codeTextPadding
events[tailExitIndex][1].type = types.codeTextPadding
headEnterIndex += 2
tailExitIndex -= 2
break
}
}
}
// Merge adjacent spaces and data.
index = headEnterIndex - 1
tailExitIndex++
while (++index <= tailExitIndex) {
if (enter === undefined) {
if (
index !== tailExitIndex &&
events[index][1].type !== types.lineEnding
) {
enter = index
}
} else if (
index === tailExitIndex ||
events[index][1].type === types.lineEnding
) {
events[enter][1].type = types.codeTextData
if (index !== enter + 2) {
events[enter][1].end = events[index - 1][1].end
events.splice(enter + 2, index - enter - 2)
tailExitIndex -= index - enter - 2
index = enter + 2
}
enter = undefined
}
}
return events
}
/** @type {Previous} */
function previous(code) {
// If there is a previous code, there will always be a tail.
return (
code !== codes.graveAccent ||
this.events[this.events.length - 1][1].type === types.characterEscape
)
}
/** @type {Tokenizer} */
function tokenizeCodeText(effects, ok, nok) {
const self = this
let sizeOpen = 0
/** @type {number} */
let size
/** @type {Token} */
let token
return start
/** @type {State} */
function start(code) {
assert(code === codes.graveAccent, 'expected `` ` ``')
assert(previous.call(self, self.previous), 'expected correct previous')
effects.enter(types.codeText)
effects.enter(types.codeTextSequence)
return openingSequence(code)
}
/** @type {State} */
function openingSequence(code) {
if (code === codes.graveAccent) {
effects.consume(code)
sizeOpen++
return openingSequence
}
effects.exit(types.codeTextSequence)
return gap(code)
}
/** @type {State} */
function gap(code) {
// EOF.
if (code === codes.eof) {
return nok(code)
}
// Closing fence?
// Could also be data.
if (code === codes.graveAccent) {
token = effects.enter(types.codeTextSequence)
size = 0
return closingSequence(code)
}
// Tabs dont work, and virtual spaces dont make sense.
if (code === codes.space) {
effects.enter('space')
effects.consume(code)
effects.exit('space')
return gap
}
if (markdownLineEnding(code)) {
effects.enter(types.lineEnding)
effects.consume(code)
effects.exit(types.lineEnding)
return gap
}
// Data.
effects.enter(types.codeTextData)
return data(code)
}
// In code.
/** @type {State} */
function data(code) {
if (
code === codes.eof ||
code === codes.space ||
code === codes.graveAccent ||
markdownLineEnding(code)
) {
effects.exit(types.codeTextData)
return gap(code)
}
effects.consume(code)
return data
}
// Closing fence.
/** @type {State} */
function closingSequence(code) {
// More.
if (code === codes.graveAccent) {
effects.consume(code)
size++
return closingSequence
}
// Done!
if (size === sizeOpen) {
effects.exit(types.codeTextSequence)
effects.exit(types.codeText)
return ok(code)
}
// More or less accents: mark as data.
token.type = types.codeTextData
return data(code)
}
}