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109 lines
2.6 KiB
Text
109 lines
2.6 KiB
Text
/**
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* @typedef {import('micromark-util-types').Construct} Construct
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* @typedef {import('micromark-util-types').Tokenizer} Tokenizer
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* @typedef {import('micromark-util-types').Resolver} Resolver
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* @typedef {import('micromark-util-types').Token} Token
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* @typedef {import('micromark-util-types').State} State
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*/
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import {factorySpace} from 'micromark-factory-space'
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import {markdownLineEnding} from 'micromark-util-character'
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/** @type {Construct} */
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export const codeIndented = {
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name: 'codeIndented',
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tokenize: tokenizeCodeIndented
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}
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/** @type {Construct} */
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const indentedContent = {
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tokenize: tokenizeIndentedContent,
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partial: true
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}
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/** @type {Tokenizer} */
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function tokenizeCodeIndented(effects, ok, nok) {
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const self = this
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return start
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/** @type {State} */
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function start(code) {
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effects.enter('codeIndented')
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return factorySpace(effects, afterStartPrefix, 'linePrefix', 4 + 1)(code)
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}
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/** @type {State} */
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function afterStartPrefix(code) {
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const tail = self.events[self.events.length - 1]
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return tail &&
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tail[1].type === 'linePrefix' &&
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tail[2].sliceSerialize(tail[1], true).length >= 4
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? afterPrefix(code)
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: nok(code)
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}
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/** @type {State} */
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function afterPrefix(code) {
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if (code === null) {
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return after(code)
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}
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if (markdownLineEnding(code)) {
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return effects.attempt(indentedContent, afterPrefix, after)(code)
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}
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effects.enter('codeFlowValue')
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return content(code)
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}
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/** @type {State} */
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function content(code) {
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if (code === null || markdownLineEnding(code)) {
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effects.exit('codeFlowValue')
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return afterPrefix(code)
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}
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effects.consume(code)
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return content
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}
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/** @type {State} */
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function after(code) {
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effects.exit('codeIndented')
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return ok(code)
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}
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}
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/** @type {Tokenizer} */
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function tokenizeIndentedContent(effects, ok, nok) {
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const self = this
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return start
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/** @type {State} */
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function start(code) {
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// If this is a lazy line, it can’t be code.
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if (self.parser.lazy[self.now().line]) {
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return nok(code)
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}
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if (markdownLineEnding(code)) {
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effects.enter('lineEnding')
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effects.consume(code)
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effects.exit('lineEnding')
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return start
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}
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return factorySpace(effects, afterPrefix, 'linePrefix', 4 + 1)(code)
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}
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/** @type {State} */
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function afterPrefix(code) {
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const tail = self.events[self.events.length - 1]
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return tail &&
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tail[1].type === 'linePrefix' &&
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tail[2].sliceSerialize(tail[1], true).length >= 4
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? ok(code)
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: markdownLineEnding(code)
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? start(code)
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: nok(code)
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}
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}
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