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170 lines
3.9 KiB
Text
170 lines
3.9 KiB
Text
/**
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* @typedef {import('micromark-util-types').Effects} Effects
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* @typedef {import('micromark-util-types').State} State
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*/
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import {
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asciiControl,
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markdownLineEndingOrSpace,
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markdownLineEnding
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} 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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* @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} literalType
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* @param {string} literalMarkerType
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* @param {string} rawType
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* @param {string} stringType
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* @param {number} [max=Infinity]
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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 factoryDestination(
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effects,
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ok,
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nok,
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type,
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literalType,
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literalMarkerType,
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rawType,
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stringType,
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max
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) {
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const limit = max || Number.POSITIVE_INFINITY
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let balance = 0
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return start
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/** @type {State} */
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function start(code) {
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if (code === codes.lessThan) {
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effects.enter(type)
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effects.enter(literalType)
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effects.enter(literalMarkerType)
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effects.consume(code)
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effects.exit(literalMarkerType)
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return destinationEnclosedBefore
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}
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if (
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code === codes.eof ||
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code === codes.rightParenthesis ||
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asciiControl(code)
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) {
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return nok(code)
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}
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effects.enter(type)
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effects.enter(rawType)
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effects.enter(stringType)
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effects.enter(types.chunkString, {contentType: constants.contentTypeString})
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return destinationRaw(code)
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}
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/** @type {State} */
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function destinationEnclosedBefore(code) {
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if (code === codes.greaterThan) {
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effects.enter(literalMarkerType)
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effects.consume(code)
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effects.exit(literalMarkerType)
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effects.exit(literalType)
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effects.exit(type)
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return ok
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}
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effects.enter(stringType)
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effects.enter(types.chunkString, {contentType: constants.contentTypeString})
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return destinationEnclosed(code)
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}
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/** @type {State} */
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function destinationEnclosed(code) {
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if (code === codes.greaterThan) {
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effects.exit(types.chunkString)
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effects.exit(stringType)
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return destinationEnclosedBefore(code)
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}
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if (
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code === codes.eof ||
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code === codes.lessThan ||
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markdownLineEnding(code)
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) {
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return nok(code)
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}
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effects.consume(code)
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return code === codes.backslash
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? destinationEnclosedEscape
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: destinationEnclosed
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}
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/** @type {State} */
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function destinationEnclosedEscape(code) {
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if (
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code === codes.lessThan ||
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code === codes.greaterThan ||
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code === codes.backslash
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) {
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effects.consume(code)
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return destinationEnclosed
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}
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return destinationEnclosed(code)
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}
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/** @type {State} */
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function destinationRaw(code) {
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if (code === codes.leftParenthesis) {
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if (++balance > limit) return nok(code)
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effects.consume(code)
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return destinationRaw
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}
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if (code === codes.rightParenthesis) {
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if (!balance--) {
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effects.exit(types.chunkString)
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effects.exit(stringType)
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effects.exit(rawType)
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effects.exit(type)
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return ok(code)
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}
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effects.consume(code)
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return destinationRaw
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}
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if (code === codes.eof || markdownLineEndingOrSpace(code)) {
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if (balance) return nok(code)
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effects.exit(types.chunkString)
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effects.exit(stringType)
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effects.exit(rawType)
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effects.exit(type)
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return ok(code)
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}
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if (asciiControl(code)) return nok(code)
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effects.consume(code)
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return code === codes.backslash ? destinationRawEscape : destinationRaw
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}
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/** @type {State} */
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function destinationRawEscape(code) {
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if (
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code === codes.leftParenthesis ||
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code === codes.rightParenthesis ||
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code === codes.backslash
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) {
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effects.consume(code)
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return destinationRaw
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}
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return destinationRaw(code)
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}
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}
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