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76 lines
2.2 KiB
76 lines
2.2 KiB
'use strict'; |
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const types = require('../../tokenizer/types.cjs'); |
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const NUMBERSIGN = 0x0023; // U+0023 NUMBER SIGN (#) |
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const ASTERISK = 0x002A; // U+002A ASTERISK (*) |
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const PLUSSIGN = 0x002B; // U+002B PLUS SIGN (+) |
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const HYPHENMINUS = 0x002D; // U+002D HYPHEN-MINUS (-) |
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const SOLIDUS = 0x002F; // U+002F SOLIDUS (/) |
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const U = 0x0075; // U+0075 LATIN SMALL LETTER U (u) |
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function defaultRecognizer(context) { |
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switch (this.tokenType) { |
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case types.Hash: |
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return this.Hash(); |
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case types.Comma: |
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return this.Operator(); |
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case types.LeftParenthesis: |
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return this.Parentheses(this.readSequence, context.recognizer); |
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case types.LeftSquareBracket: |
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return this.Brackets(this.readSequence, context.recognizer); |
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case types.String: |
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return this.String(); |
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case types.Dimension: |
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return this.Dimension(); |
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case types.Percentage: |
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return this.Percentage(); |
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case types.Number: |
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return this.Number(); |
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case types.Function: |
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return this.cmpStr(this.tokenStart, this.tokenEnd, 'url(') |
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? this.Url() |
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: this.Function(this.readSequence, context.recognizer); |
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case types.Url: |
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return this.Url(); |
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case types.Ident: |
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// check for unicode range, it should start with u+ or U+ |
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if (this.cmpChar(this.tokenStart, U) && |
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this.cmpChar(this.tokenStart + 1, PLUSSIGN)) { |
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return this.UnicodeRange(); |
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} else { |
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return this.Identifier(); |
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} |
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case types.Delim: { |
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const code = this.charCodeAt(this.tokenStart); |
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if (code === SOLIDUS || |
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code === ASTERISK || |
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code === PLUSSIGN || |
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code === HYPHENMINUS) { |
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return this.Operator(); // TODO: replace with Delim |
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} |
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// TODO: produce a node with Delim node type |
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if (code === NUMBERSIGN) { |
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this.error('Hex or identifier is expected', this.tokenStart + 1); |
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} |
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break; |
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} |
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} |
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} |
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module.exports = defaultRecognizer;
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