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- var TYPE = require('../../tokenizer').TYPE;
- var IDENT = TYPE.Ident;
- var PLUSSIGN = 0x002B; // U+002B PLUS SIGN (+)
- var SOLIDUS = 0x002F; // U+002F SOLIDUS (/)
- var GREATERTHANSIGN = 0x003E; // U+003E GREATER-THAN SIGN (>)
- var TILDE = 0x007E; // U+007E TILDE (~)
- // + | > | ~ | /deep/
- module.exports = {
- name: 'Combinator',
- structure: {
- name: String
- },
- parse: function() {
- var start = this.scanner.tokenStart;
- var code = this.scanner.source.charCodeAt(this.scanner.tokenStart);
- switch (code) {
- case GREATERTHANSIGN:
- case PLUSSIGN:
- case TILDE:
- this.scanner.next();
- break;
- case SOLIDUS:
- this.scanner.next();
- if (this.scanner.tokenType !== IDENT || this.scanner.lookupValue(0, 'deep') === false) {
- this.error('Identifier `deep` is expected');
- }
- this.scanner.next();
- if (!this.scanner.isDelim(SOLIDUS)) {
- this.error('Solidus is expected');
- }
- this.scanner.next();
- break;
- default:
- this.error('Combinator is expected');
- }
- return {
- type: 'Combinator',
- loc: this.getLocation(start, this.scanner.tokenStart),
- name: this.scanner.substrToCursor(start)
- };
- },
- generate: function(node) {
- this.chunk(node.name);
- }
- };
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