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