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114 lines
3 KiB
Text
114 lines
3 KiB
Text
/**
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* @typedef {import('micromark-util-types').Effects} Effects
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* @typedef {import('micromark-util-types').TokenizeContext} TokenizeContext
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* @typedef {import('micromark-util-types').State} State
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*/
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import {ok as assert} from 'uvu/assert'
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import {markdownLineEnding, markdownSpace} from 'micromark-util-character'
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import {codes} from 'micromark-util-symbol/codes.js'
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import {constants} from 'micromark-util-symbol/constants.js'
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import {types} from 'micromark-util-symbol/types.js'
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/**
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* @this {TokenizeContext}
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* @param {Effects} effects
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* @param {State} ok
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* @param {State} nok
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* @param {string} type
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* @param {string} markerType
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* @param {string} stringType
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* @returns {State}
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*/
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// eslint-disable-next-line max-params
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export function factoryLabel(effects, ok, nok, type, markerType, stringType) {
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const self = this
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let size = 0
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/** @type {boolean} */
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let data
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return start
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/** @type {State} */
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function start(code) {
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assert(code === codes.leftSquareBracket, 'expected `[`')
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effects.enter(type)
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effects.enter(markerType)
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effects.consume(code)
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effects.exit(markerType)
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effects.enter(stringType)
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return atBreak
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}
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/** @type {State} */
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function atBreak(code) {
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if (
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code === codes.eof ||
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code === codes.leftSquareBracket ||
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(code === codes.rightSquareBracket && !data) ||
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/* To do: remove in the future once we’ve switched from
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* `micromark-extension-footnote` to `micromark-extension-gfm-footnote`,
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* which doesn’t need this */
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/* Hidden footnotes hook */
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/* c8 ignore next 3 */
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(code === codes.caret &&
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!size &&
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'_hiddenFootnoteSupport' in self.parser.constructs) ||
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size > constants.linkReferenceSizeMax
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) {
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return nok(code)
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}
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if (code === codes.rightSquareBracket) {
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effects.exit(stringType)
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effects.enter(markerType)
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effects.consume(code)
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effects.exit(markerType)
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effects.exit(type)
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return ok
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}
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if (markdownLineEnding(code)) {
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effects.enter(types.lineEnding)
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effects.consume(code)
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effects.exit(types.lineEnding)
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return atBreak
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}
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effects.enter(types.chunkString, {contentType: constants.contentTypeString})
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return label(code)
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}
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/** @type {State} */
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function label(code) {
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if (
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code === codes.eof ||
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code === codes.leftSquareBracket ||
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code === codes.rightSquareBracket ||
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markdownLineEnding(code) ||
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size++ > constants.linkReferenceSizeMax
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) {
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effects.exit(types.chunkString)
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return atBreak(code)
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}
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effects.consume(code)
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data = data || !markdownSpace(code)
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return code === codes.backslash ? labelEscape : label
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}
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/** @type {State} */
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function labelEscape(code) {
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if (
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code === codes.leftSquareBracket ||
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code === codes.backslash ||
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code === codes.rightSquareBracket
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) {
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effects.consume(code)
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size++
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return label
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}
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return label(code)
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}
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}
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