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74 lines
1.7 KiB
74 lines
1.7 KiB
'use strict' |
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var assert = require('assert') |
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var codes = require('../character/codes.js') |
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var markdownLineEnding = require('../character/markdown-line-ending.js') |
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var markdownSpace = require('../character/markdown-space.js') |
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var constants = require('../constant/constants.js') |
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var types = require('../constant/types.js') |
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var factorySpace = require('./factory-space.js') |
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function _interopDefaultLegacy(e) { |
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return e && typeof e === 'object' && 'default' in e ? e : {default: e} |
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} |
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var assert__default = /*#__PURE__*/ _interopDefaultLegacy(assert) |
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var thematicBreak = { |
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name: 'thematicBreak', |
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tokenize: tokenizeThematicBreak |
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} |
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function tokenizeThematicBreak(effects, ok, nok) { |
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var size = 0 |
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var marker |
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return start |
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function start(code) { |
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assert__default['default']( |
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code === codes.asterisk || |
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code === codes.dash || |
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code === codes.underscore, |
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'expected `*`, `-`, or `_`' |
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) |
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effects.enter(types.thematicBreak) |
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marker = code |
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return atBreak(code) |
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} |
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function atBreak(code) { |
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if (code === marker) { |
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effects.enter(types.thematicBreakSequence) |
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return sequence(code) |
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} |
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if (markdownSpace(code)) { |
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return factorySpace(effects, atBreak, types.whitespace)(code) |
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} |
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if ( |
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size < constants.thematicBreakMarkerCountMin || |
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(code !== codes.eof && !markdownLineEnding(code)) |
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) { |
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return nok(code) |
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} |
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effects.exit(types.thematicBreak) |
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return ok(code) |
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} |
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function sequence(code) { |
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if (code === marker) { |
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effects.consume(code) |
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size++ |
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return sequence |
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} |
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effects.exit(types.thematicBreakSequence) |
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return atBreak(code) |
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} |
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} |
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module.exports = thematicBreak
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