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70 lines
1.6 KiB
70 lines
1.6 KiB
export var tokenize = initializeFlow |
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import assert from 'assert' |
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import codes from '../character/codes.mjs' |
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import markdownLineEnding from '../character/markdown-line-ending.mjs' |
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import types from '../constant/types.mjs' |
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import content from '../tokenize/content.mjs' |
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import spaceFactory from '../tokenize/factory-space.mjs' |
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import blank from '../tokenize/partial-blank-line.mjs' |
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function initializeFlow(effects) { |
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var self = this |
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var initial = effects.attempt( |
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// Try to parse a blank line. |
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blank, |
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atBlankEnding, |
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// Try to parse initial flow (essentially, only code). |
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effects.attempt( |
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this.parser.constructs.flowInitial, |
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afterConstruct, |
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spaceFactory( |
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effects, |
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effects.attempt( |
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this.parser.constructs.flow, |
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afterConstruct, |
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effects.attempt(content, afterConstruct) |
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), |
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types.linePrefix |
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) |
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) |
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) |
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return initial |
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function atBlankEnding(code) { |
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assert( |
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code === codes.eof || markdownLineEnding(code), |
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'expected eol or eof' |
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) |
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if (code === codes.eof) { |
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effects.consume(code) |
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return |
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} |
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effects.enter(types.lineEndingBlank) |
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effects.consume(code) |
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effects.exit(types.lineEndingBlank) |
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self.currentConstruct = undefined |
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return initial |
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} |
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function afterConstruct(code) { |
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assert( |
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code === codes.eof || markdownLineEnding(code), |
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'expected eol or eof' |
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) |
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if (code === codes.eof) { |
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effects.consume(code) |
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return |
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} |
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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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self.currentConstruct = undefined |
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return initial |
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} |
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}
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