sgauthier
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76 lines
1.6 KiB
JavaScript
76 lines
1.6 KiB
JavaScript
'use strict'
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var markdownLineEnding = require('../character/markdown-line-ending.js')
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var factorySpace = require('./factory-space.js')
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function titleFactory(effects, ok, nok, type, markerType, stringType) {
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var marker
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return start
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function start(code) {
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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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marker = code === 40 ? 41 : code
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return atFirstTitleBreak
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}
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function atFirstTitleBreak(code) {
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if (code === marker) {
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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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effects.enter(stringType)
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return atTitleBreak(code)
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}
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function atTitleBreak(code) {
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if (code === marker) {
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effects.exit(stringType)
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return atFirstTitleBreak(marker)
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}
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if (code === null) {
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return nok(code)
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} // Note: blank lines can’t exist in content.
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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 factorySpace(effects, atTitleBreak, 'linePrefix')
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}
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effects.enter('chunkString', {
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contentType: 'string'
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})
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return title(code)
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}
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function title(code) {
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if (code === marker || code === null || markdownLineEnding(code)) {
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effects.exit('chunkString')
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return atTitleBreak(code)
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}
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effects.consume(code)
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return code === 92 ? titleEscape : title
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}
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function titleEscape(code) {
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if (code === marker || code === 92) {
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effects.consume(code)
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return title
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}
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return title(code)
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}
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}
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module.exports = titleFactory
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