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