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61 lines
1.4 KiB
61 lines
1.4 KiB
'use strict'; |
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const types = require('../../tokenizer/types.cjs'); |
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const PLUSSIGN = 0x002B; // U+002B PLUS SIGN (+) |
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const SOLIDUS = 0x002F; // U+002F SOLIDUS (/) |
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const GREATERTHANSIGN = 0x003E; // U+003E GREATER-THAN SIGN (>) |
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const TILDE = 0x007E; // U+007E TILDE (~) |
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const name = 'Combinator'; |
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const structure = { |
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name: String |
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}; |
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// + | > | ~ | /deep/ |
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function parse() { |
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const start = this.tokenStart; |
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let name; |
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switch (this.tokenType) { |
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case types.WhiteSpace: |
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name = ' '; |
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break; |
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case types.Delim: |
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switch (this.charCodeAt(this.tokenStart)) { |
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case GREATERTHANSIGN: |
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case PLUSSIGN: |
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case TILDE: |
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this.next(); |
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break; |
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case SOLIDUS: |
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this.next(); |
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this.eatIdent('deep'); |
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this.eatDelim(SOLIDUS); |
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break; |
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default: |
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this.error('Combinator is expected'); |
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} |
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name = this.substrToCursor(start); |
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break; |
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} |
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return { |
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type: 'Combinator', |
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loc: this.getLocation(start, this.tokenStart), |
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name |
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}; |
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} |
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function generate(node) { |
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this.tokenize(node.name); |
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} |
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exports.generate = generate; |
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exports.name = name; |
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exports.parse = parse; |
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exports.structure = structure;
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