mirror of
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121 lines
2.9 KiB
Text
121 lines
2.9 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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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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/** @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 = {tokenize: tokenizeIndentedContent, partial: true}
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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(types.codeIndented)
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return factorySpace(
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effects,
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afterStartPrefix,
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types.linePrefix,
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constants.tabSize + 1
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)(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 === types.linePrefix &&
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tail[2].sliceSerialize(tail[1], true).length >= constants.tabSize
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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 === codes.eof) {
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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(types.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 === codes.eof || markdownLineEnding(code)) {
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effects.exit(types.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(types.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(types.lineEnding)
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effects.consume(code)
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effects.exit(types.lineEnding)
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return start
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}
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return factorySpace(
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effects,
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afterPrefix,
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types.linePrefix,
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constants.tabSize + 1
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)(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 === types.linePrefix &&
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tail[2].sliceSerialize(tail[1], true).length >= constants.tabSize
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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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