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951 lines
28 KiB
JavaScript
951 lines
28 KiB
JavaScript
/*
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* Original at https://github.com/tabatkins/parse-css
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* licensed under http://creativecommons.org/publicdomain/zero/1.0/
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*
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* Modifications copyright (c) Microsoft Corporation.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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// Changes from https://github.com/tabatkins/parse-css
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// - Tabs are replaced with two spaces.
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// - Everything not related to tokenizing - below the first exports block - is removed.
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// @ts-nocheck
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(function (root, factory) {
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// Universal Module Definition (UMD) to support AMD, CommonJS/Node.js,
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// Rhino, and plain browser loading.
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if (typeof define === 'function' && define.amd) {
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define(['exports'], factory);
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} else if (typeof exports !== 'undefined') {
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factory(exports);
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} else {
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factory(root);
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}
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}(this, function (exports) {
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var between = function (num, first, last) { return num >= first && num <= last; }
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function digit(code) { return between(code, 0x30,0x39); }
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function hexdigit(code) { return digit(code) || between(code, 0x41,0x46) || between(code, 0x61,0x66); }
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function uppercaseletter(code) { return between(code, 0x41,0x5a); }
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function lowercaseletter(code) { return between(code, 0x61,0x7a); }
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function letter(code) { return uppercaseletter(code) || lowercaseletter(code); }
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function nonascii(code) { return code >= 0x80; }
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function namestartchar(code) { return letter(code) || nonascii(code) || code == 0x5f; }
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function namechar(code) { return namestartchar(code) || digit(code) || code == 0x2d; }
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function nonprintable(code) { return between(code, 0,8) || code == 0xb || between(code, 0xe,0x1f) || code == 0x7f; }
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function newline(code) { return code == 0xa; }
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function whitespace(code) { return newline(code) || code == 9 || code == 0x20; }
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function badescape(code) { return newline(code) || isNaN(code); }
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var maximumallowedcodepoint = 0x10ffff;
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var InvalidCharacterError = function(message) {
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this.message = message;
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};
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InvalidCharacterError.prototype = new Error;
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InvalidCharacterError.prototype.name = 'InvalidCharacterError';
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function preprocess(str) {
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// Turn a string into an array of code points,
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// following the preprocessing cleanup rules.
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var codepoints = [];
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for(var i = 0; i < str.length; i++) {
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var code = str.charCodeAt(i);
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if(code == 0xd && str.charCodeAt(i+1) == 0xa) {
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code = 0xa; i++;
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}
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if(code == 0xd || code == 0xc) code = 0xa;
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if(code == 0x0) code = 0xfffd;
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if(between(code, 0xd800, 0xdbff) && between(str.charCodeAt(i+1), 0xdc00, 0xdfff)) {
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// Decode a surrogate pair into an astral codepoint.
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var lead = code - 0xd800;
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var trail = str.charCodeAt(i+1) - 0xdc00;
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code = Math.pow(2, 16) + lead * Math.pow(2, 10) + trail;
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i++;
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}
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codepoints.push(code);
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}
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return codepoints;
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}
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function stringFromCode(code) {
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if(code <= 0xffff) return String.fromCharCode(code);
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// Otherwise, encode astral char as surrogate pair.
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code -= Math.pow(2, 16);
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var lead = Math.floor(code/Math.pow(2, 10)) + 0xd800;
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var trail = code % Math.pow(2, 10) + 0xdc00;
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return String.fromCharCode(lead) + String.fromCharCode(trail);
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}
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function tokenize(str) {
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str = preprocess(str);
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var i = -1;
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var tokens = [];
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var code;
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// Line number information.
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var line = 0;
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var column = 0;
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// The only use of lastLineLength is in reconsume().
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var lastLineLength = 0;
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var incrLineno = function() {
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line += 1;
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lastLineLength = column;
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column = 0;
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};
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var locStart = {line:line, column:column};
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var codepoint = function(i) {
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if(i >= str.length) {
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return -1;
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}
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return str[i];
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}
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var next = function(num) {
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if(num === undefined)
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num = 1;
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if(num > 3)
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throw "Spec Error: no more than three codepoints of lookahead.";
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return codepoint(i+num);
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};
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var consume = function(num) {
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if(num === undefined)
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num = 1;
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i += num;
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code = codepoint(i);
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if(newline(code)) incrLineno();
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else column += num;
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//console.log('Consume '+i+' '+String.fromCharCode(code) + ' 0x' + code.toString(16));
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return true;
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};
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var reconsume = function() {
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i -= 1;
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if (newline(code)) {
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line -= 1;
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column = lastLineLength;
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} else {
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column -= 1;
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}
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locStart.line = line;
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locStart.column = column;
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return true;
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};
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var eof = function(codepoint) {
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if(codepoint === undefined) codepoint = code;
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return codepoint == -1;
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};
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var donothing = function() {};
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var parseerror = function() { console.log("Parse error at index " + i + ", processing codepoint 0x" + code.toString(16) + ".");return true; };
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var consumeAToken = function() {
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consumeComments();
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consume();
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if(whitespace(code)) {
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while(whitespace(next())) consume();
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return new WhitespaceToken;
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}
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else if(code == 0x22) return consumeAStringToken();
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else if(code == 0x23) {
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if(namechar(next()) || areAValidEscape(next(1), next(2))) {
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var token = new HashToken();
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if(wouldStartAnIdentifier(next(1), next(2), next(3))) token.type = "id";
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token.value = consumeAName();
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return token;
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} else {
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return new DelimToken(code);
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}
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}
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else if(code == 0x24) {
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if(next() == 0x3d) {
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consume();
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return new SuffixMatchToken();
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} else {
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return new DelimToken(code);
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}
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}
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else if(code == 0x27) return consumeAStringToken();
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else if(code == 0x28) return new OpenParenToken();
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else if(code == 0x29) return new CloseParenToken();
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else if(code == 0x2a) {
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if(next() == 0x3d) {
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consume();
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return new SubstringMatchToken();
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} else {
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return new DelimToken(code);
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}
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}
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else if(code == 0x2b) {
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if(startsWithANumber()) {
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reconsume();
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return consumeANumericToken();
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} else {
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return new DelimToken(code);
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}
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}
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else if(code == 0x2c) return new CommaToken();
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else if(code == 0x2d) {
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if(startsWithANumber()) {
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reconsume();
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return consumeANumericToken();
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} else if(next(1) == 0x2d && next(2) == 0x3e) {
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consume(2);
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return new CDCToken();
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} else if(startsWithAnIdentifier()) {
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reconsume();
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return consumeAnIdentlikeToken();
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} else {
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return new DelimToken(code);
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}
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}
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else if(code == 0x2e) {
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if(startsWithANumber()) {
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reconsume();
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return consumeANumericToken();
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} else {
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return new DelimToken(code);
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}
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}
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else if(code == 0x3a) return new ColonToken;
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else if(code == 0x3b) return new SemicolonToken;
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else if(code == 0x3c) {
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if(next(1) == 0x21 && next(2) == 0x2d && next(3) == 0x2d) {
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consume(3);
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return new CDOToken();
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} else {
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return new DelimToken(code);
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}
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}
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else if(code == 0x40) {
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if(wouldStartAnIdentifier(next(1), next(2), next(3))) {
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return new AtKeywordToken(consumeAName());
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} else {
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return new DelimToken(code);
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}
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}
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else if(code == 0x5b) return new OpenSquareToken();
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else if(code == 0x5c) {
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if(startsWithAValidEscape()) {
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reconsume();
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return consumeAnIdentlikeToken();
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} else {
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parseerror();
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return new DelimToken(code);
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}
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}
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else if(code == 0x5d) return new CloseSquareToken();
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else if(code == 0x5e) {
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if(next() == 0x3d) {
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consume();
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return new PrefixMatchToken();
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} else {
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return new DelimToken(code);
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}
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}
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else if(code == 0x7b) return new OpenCurlyToken();
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else if(code == 0x7c) {
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if(next() == 0x3d) {
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consume();
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return new DashMatchToken();
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} else if(next() == 0x7c) {
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consume();
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return new ColumnToken();
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} else {
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return new DelimToken(code);
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}
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}
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else if(code == 0x7d) return new CloseCurlyToken();
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else if(code == 0x7e) {
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if(next() == 0x3d) {
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consume();
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return new IncludeMatchToken();
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} else {
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return new DelimToken(code);
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}
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}
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else if(digit(code)) {
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reconsume();
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return consumeANumericToken();
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}
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else if(namestartchar(code)) {
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reconsume();
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return consumeAnIdentlikeToken();
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}
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else if(eof()) return new EOFToken();
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else return new DelimToken(code);
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};
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var consumeComments = function() {
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while(next(1) == 0x2f && next(2) == 0x2a) {
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consume(2);
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while(true) {
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consume();
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if(code == 0x2a && next() == 0x2f) {
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consume();
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break;
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} else if(eof()) {
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parseerror();
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return;
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}
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}
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}
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};
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var consumeANumericToken = function() {
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var num = consumeANumber();
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if(wouldStartAnIdentifier(next(1), next(2), next(3))) {
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var token = new DimensionToken();
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token.value = num.value;
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token.repr = num.repr;
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token.type = num.type;
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token.unit = consumeAName();
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return token;
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} else if(next() == 0x25) {
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consume();
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var token = new PercentageToken();
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token.value = num.value;
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token.repr = num.repr;
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return token;
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} else {
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var token = new NumberToken();
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token.value = num.value;
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token.repr = num.repr;
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token.type = num.type;
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return token;
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}
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};
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var consumeAnIdentlikeToken = function() {
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var str = consumeAName();
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if(str.toLowerCase() == "url" && next() == 0x28) {
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consume();
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while(whitespace(next(1)) && whitespace(next(2))) consume();
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if(next() == 0x22 || next() == 0x27) {
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return new FunctionToken(str);
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} else if(whitespace(next()) && (next(2) == 0x22 || next(2) == 0x27)) {
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return new FunctionToken(str);
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} else {
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return consumeAURLToken();
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}
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} else if(next() == 0x28) {
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consume();
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return new FunctionToken(str);
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} else {
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return new IdentToken(str);
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}
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};
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var consumeAStringToken = function(endingCodePoint) {
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if(endingCodePoint === undefined) endingCodePoint = code;
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var string = "";
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while(consume()) {
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if(code == endingCodePoint || eof()) {
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return new StringToken(string);
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} else if(newline(code)) {
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parseerror();
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reconsume();
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return new BadStringToken();
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} else if(code == 0x5c) {
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if(eof(next())) {
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donothing();
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} else if(newline(next())) {
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consume();
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} else {
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string += stringFromCode(consumeEscape())
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}
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} else {
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string += stringFromCode(code);
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}
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}
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};
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var consumeAURLToken = function() {
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var token = new URLToken("");
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while(whitespace(next())) consume();
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if(eof(next())) return token;
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while(consume()) {
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if(code == 0x29 || eof()) {
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return token;
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} else if(whitespace(code)) {
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while(whitespace(next())) consume();
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if(next() == 0x29 || eof(next())) {
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consume();
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return token;
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} else {
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consumeTheRemnantsOfABadURL();
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return new BadURLToken();
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}
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} else if(code == 0x22 || code == 0x27 || code == 0x28 || nonprintable(code)) {
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parseerror();
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consumeTheRemnantsOfABadURL();
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return new BadURLToken();
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} else if(code == 0x5c) {
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if(startsWithAValidEscape()) {
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token.value += stringFromCode(consumeEscape());
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} else {
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parseerror();
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consumeTheRemnantsOfABadURL();
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return new BadURLToken();
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}
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} else {
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token.value += stringFromCode(code);
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}
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}
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};
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var consumeEscape = function() {
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// Assume the the current character is the \
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// and the next code point is not a newline.
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consume();
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if(hexdigit(code)) {
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// Consume 1-6 hex digits
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var digits = [code];
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for(var total = 0; total < 5; total++) {
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if(hexdigit(next())) {
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consume();
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digits.push(code);
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} else {
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break;
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}
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}
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if(whitespace(next())) consume();
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var value = parseInt(digits.map(function(x){return String.fromCharCode(x);}).join(''), 16);
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if( value > maximumallowedcodepoint ) value = 0xfffd;
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return value;
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} else if(eof()) {
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return 0xfffd;
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} else {
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return code;
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}
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};
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var areAValidEscape = function(c1, c2) {
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if(c1 != 0x5c) return false;
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if(newline(c2)) return false;
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return true;
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};
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var startsWithAValidEscape = function() {
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return areAValidEscape(code, next());
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};
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var wouldStartAnIdentifier = function(c1, c2, c3) {
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if(c1 == 0x2d) {
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return namestartchar(c2) || c2 == 0x2d || areAValidEscape(c2, c3);
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} else if(namestartchar(c1)) {
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return true;
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} else if(c1 == 0x5c) {
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return areAValidEscape(c1, c2);
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} else {
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return false;
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}
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};
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var startsWithAnIdentifier = function() {
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return wouldStartAnIdentifier(code, next(1), next(2));
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};
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var wouldStartANumber = function(c1, c2, c3) {
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if(c1 == 0x2b || c1 == 0x2d) {
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if(digit(c2)) return true;
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if(c2 == 0x2e && digit(c3)) return true;
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return false;
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} else if(c1 == 0x2e) {
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if(digit(c2)) return true;
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return false;
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} else if(digit(c1)) {
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return true;
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} else {
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return false;
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}
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};
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var startsWithANumber = function() {
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return wouldStartANumber(code, next(1), next(2));
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};
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var consumeAName = function() {
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var result = "";
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while(consume()) {
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if(namechar(code)) {
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result += stringFromCode(code);
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} else if(startsWithAValidEscape()) {
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result += stringFromCode(consumeEscape());
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} else {
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reconsume();
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return result;
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}
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}
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};
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var consumeANumber = function() {
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var repr = [];
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var type = "integer";
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if(next() == 0x2b || next() == 0x2d) {
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consume();
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repr += stringFromCode(code);
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}
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while(digit(next())) {
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consume();
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repr += stringFromCode(code);
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}
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if(next(1) == 0x2e && digit(next(2))) {
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consume();
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repr += stringFromCode(code);
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consume();
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repr += stringFromCode(code);
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type = "number";
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while(digit(next())) {
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consume();
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repr += stringFromCode(code);
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}
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}
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var c1 = next(1), c2 = next(2), c3 = next(3);
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if((c1 == 0x45 || c1 == 0x65) && digit(c2)) {
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consume();
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repr += stringFromCode(code);
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consume();
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repr += stringFromCode(code);
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type = "number";
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while(digit(next())) {
|
|
consume();
|
|
repr += stringFromCode(code);
|
|
}
|
|
} else if((c1 == 0x45 || c1 == 0x65) && (c2 == 0x2b || c2 == 0x2d) && digit(c3)) {
|
|
consume();
|
|
repr += stringFromCode(code);
|
|
consume();
|
|
repr += stringFromCode(code);
|
|
consume();
|
|
repr += stringFromCode(code);
|
|
type = "number";
|
|
while(digit(next())) {
|
|
consume();
|
|
repr += stringFromCode(code);
|
|
}
|
|
}
|
|
var value = convertAStringToANumber(repr);
|
|
return {type:type, value:value, repr:repr};
|
|
};
|
|
|
|
var convertAStringToANumber = function(string) {
|
|
// CSS's number rules are identical to JS, afaik.
|
|
return +string;
|
|
};
|
|
|
|
var consumeTheRemnantsOfABadURL = function() {
|
|
while(consume()) {
|
|
if(code == 0x29 || eof()) {
|
|
return;
|
|
} else if(startsWithAValidEscape()) {
|
|
consumeEscape();
|
|
donothing();
|
|
} else {
|
|
donothing();
|
|
}
|
|
}
|
|
};
|
|
|
|
|
|
|
|
var iterationCount = 0;
|
|
while(!eof(next())) {
|
|
tokens.push(consumeAToken());
|
|
iterationCount++;
|
|
if(iterationCount > str.length*2) return "I'm infinite-looping!";
|
|
}
|
|
return tokens;
|
|
}
|
|
|
|
function CSSParserToken() { throw "Abstract Base Class"; }
|
|
CSSParserToken.prototype.toJSON = function() {
|
|
return {token: this.tokenType};
|
|
}
|
|
CSSParserToken.prototype.toString = function() { return this.tokenType; }
|
|
CSSParserToken.prototype.toSource = function() { return ''+this; }
|
|
|
|
function BadStringToken() { return this; }
|
|
BadStringToken.prototype = Object.create(CSSParserToken.prototype);
|
|
BadStringToken.prototype.tokenType = "BADSTRING";
|
|
|
|
function BadURLToken() { return this; }
|
|
BadURLToken.prototype = Object.create(CSSParserToken.prototype);
|
|
BadURLToken.prototype.tokenType = "BADURL";
|
|
|
|
function WhitespaceToken() { return this; }
|
|
WhitespaceToken.prototype = Object.create(CSSParserToken.prototype);
|
|
WhitespaceToken.prototype.tokenType = "WHITESPACE";
|
|
WhitespaceToken.prototype.toString = function() { return "WS"; }
|
|
WhitespaceToken.prototype.toSource = function() { return " "; }
|
|
|
|
function CDOToken() { return this; }
|
|
CDOToken.prototype = Object.create(CSSParserToken.prototype);
|
|
CDOToken.prototype.tokenType = "CDO";
|
|
CDOToken.prototype.toSource = function() { return "<!--"; }
|
|
|
|
function CDCToken() { return this; }
|
|
CDCToken.prototype = Object.create(CSSParserToken.prototype);
|
|
CDCToken.prototype.tokenType = "CDC";
|
|
CDCToken.prototype.toSource = function() { return "-->"; }
|
|
|
|
function ColonToken() { return this; }
|
|
ColonToken.prototype = Object.create(CSSParserToken.prototype);
|
|
ColonToken.prototype.tokenType = ":";
|
|
|
|
function SemicolonToken() { return this; }
|
|
SemicolonToken.prototype = Object.create(CSSParserToken.prototype);
|
|
SemicolonToken.prototype.tokenType = ";";
|
|
|
|
function CommaToken() { return this; }
|
|
CommaToken.prototype = Object.create(CSSParserToken.prototype);
|
|
CommaToken.prototype.tokenType = ",";
|
|
|
|
function GroupingToken() { throw "Abstract Base Class"; }
|
|
GroupingToken.prototype = Object.create(CSSParserToken.prototype);
|
|
|
|
function OpenCurlyToken() { this.value = "{"; this.mirror = "}"; return this; }
|
|
OpenCurlyToken.prototype = Object.create(GroupingToken.prototype);
|
|
OpenCurlyToken.prototype.tokenType = "{";
|
|
|
|
function CloseCurlyToken() { this.value = "}"; this.mirror = "{"; return this; }
|
|
CloseCurlyToken.prototype = Object.create(GroupingToken.prototype);
|
|
CloseCurlyToken.prototype.tokenType = "}";
|
|
|
|
function OpenSquareToken() { this.value = "["; this.mirror = "]"; return this; }
|
|
OpenSquareToken.prototype = Object.create(GroupingToken.prototype);
|
|
OpenSquareToken.prototype.tokenType = "[";
|
|
|
|
function CloseSquareToken() { this.value = "]"; this.mirror = "["; return this; }
|
|
CloseSquareToken.prototype = Object.create(GroupingToken.prototype);
|
|
CloseSquareToken.prototype.tokenType = "]";
|
|
|
|
function OpenParenToken() { this.value = "("; this.mirror = ")"; return this; }
|
|
OpenParenToken.prototype = Object.create(GroupingToken.prototype);
|
|
OpenParenToken.prototype.tokenType = "(";
|
|
|
|
function CloseParenToken() { this.value = ")"; this.mirror = "("; return this; }
|
|
CloseParenToken.prototype = Object.create(GroupingToken.prototype);
|
|
CloseParenToken.prototype.tokenType = ")";
|
|
|
|
function IncludeMatchToken() { return this; }
|
|
IncludeMatchToken.prototype = Object.create(CSSParserToken.prototype);
|
|
IncludeMatchToken.prototype.tokenType = "~=";
|
|
|
|
function DashMatchToken() { return this; }
|
|
DashMatchToken.prototype = Object.create(CSSParserToken.prototype);
|
|
DashMatchToken.prototype.tokenType = "|=";
|
|
|
|
function PrefixMatchToken() { return this; }
|
|
PrefixMatchToken.prototype = Object.create(CSSParserToken.prototype);
|
|
PrefixMatchToken.prototype.tokenType = "^=";
|
|
|
|
function SuffixMatchToken() { return this; }
|
|
SuffixMatchToken.prototype = Object.create(CSSParserToken.prototype);
|
|
SuffixMatchToken.prototype.tokenType = "$=";
|
|
|
|
function SubstringMatchToken() { return this; }
|
|
SubstringMatchToken.prototype = Object.create(CSSParserToken.prototype);
|
|
SubstringMatchToken.prototype.tokenType = "*=";
|
|
|
|
function ColumnToken() { return this; }
|
|
ColumnToken.prototype = Object.create(CSSParserToken.prototype);
|
|
ColumnToken.prototype.tokenType = "||";
|
|
|
|
function EOFToken() { return this; }
|
|
EOFToken.prototype = Object.create(CSSParserToken.prototype);
|
|
EOFToken.prototype.tokenType = "EOF";
|
|
EOFToken.prototype.toSource = function() { return ""; }
|
|
|
|
function DelimToken(code) {
|
|
this.value = stringFromCode(code);
|
|
return this;
|
|
}
|
|
DelimToken.prototype = Object.create(CSSParserToken.prototype);
|
|
DelimToken.prototype.tokenType = "DELIM";
|
|
DelimToken.prototype.toString = function() { return "DELIM("+this.value+")"; }
|
|
DelimToken.prototype.toJSON = function() {
|
|
var json = this.constructor.prototype.constructor.prototype.toJSON.call(this);
|
|
json.value = this.value;
|
|
return json;
|
|
}
|
|
DelimToken.prototype.toSource = function() {
|
|
if(this.value == "\\")
|
|
return "\\\n";
|
|
else
|
|
return this.value;
|
|
}
|
|
|
|
function StringValuedToken() { throw "Abstract Base Class"; }
|
|
StringValuedToken.prototype = Object.create(CSSParserToken.prototype);
|
|
StringValuedToken.prototype.ASCIIMatch = function(str) {
|
|
return this.value.toLowerCase() == str.toLowerCase();
|
|
}
|
|
StringValuedToken.prototype.toJSON = function() {
|
|
var json = this.constructor.prototype.constructor.prototype.toJSON.call(this);
|
|
json.value = this.value;
|
|
return json;
|
|
}
|
|
|
|
function IdentToken(val) {
|
|
this.value = val;
|
|
}
|
|
IdentToken.prototype = Object.create(StringValuedToken.prototype);
|
|
IdentToken.prototype.tokenType = "IDENT";
|
|
IdentToken.prototype.toString = function() { return "IDENT("+this.value+")"; }
|
|
IdentToken.prototype.toSource = function() {
|
|
return escapeIdent(this.value);
|
|
}
|
|
|
|
function FunctionToken(val) {
|
|
this.value = val;
|
|
this.mirror = ")";
|
|
}
|
|
FunctionToken.prototype = Object.create(StringValuedToken.prototype);
|
|
FunctionToken.prototype.tokenType = "FUNCTION";
|
|
FunctionToken.prototype.toString = function() { return "FUNCTION("+this.value+")"; }
|
|
FunctionToken.prototype.toSource = function() {
|
|
return escapeIdent(this.value) + "(";
|
|
}
|
|
|
|
function AtKeywordToken(val) {
|
|
this.value = val;
|
|
}
|
|
AtKeywordToken.prototype = Object.create(StringValuedToken.prototype);
|
|
AtKeywordToken.prototype.tokenType = "AT-KEYWORD";
|
|
AtKeywordToken.prototype.toString = function() { return "AT("+this.value+")"; }
|
|
AtKeywordToken.prototype.toSource = function() {
|
|
return "@" + escapeIdent(this.value);
|
|
}
|
|
|
|
function HashToken(val) {
|
|
this.value = val;
|
|
this.type = "unrestricted";
|
|
}
|
|
HashToken.prototype = Object.create(StringValuedToken.prototype);
|
|
HashToken.prototype.tokenType = "HASH";
|
|
HashToken.prototype.toString = function() { return "HASH("+this.value+")"; }
|
|
HashToken.prototype.toJSON = function() {
|
|
var json = this.constructor.prototype.constructor.prototype.toJSON.call(this);
|
|
json.value = this.value;
|
|
json.type = this.type;
|
|
return json;
|
|
}
|
|
HashToken.prototype.toSource = function() {
|
|
if(this.type == "id") {
|
|
return "#" + escapeIdent(this.value);
|
|
} else {
|
|
return "#" + escapeHash(this.value);
|
|
}
|
|
}
|
|
|
|
function StringToken(val) {
|
|
this.value = val;
|
|
}
|
|
StringToken.prototype = Object.create(StringValuedToken.prototype);
|
|
StringToken.prototype.tokenType = "STRING";
|
|
StringToken.prototype.toString = function() {
|
|
return '"' + escapeString(this.value) + '"';
|
|
}
|
|
|
|
function URLToken(val) {
|
|
this.value = val;
|
|
}
|
|
URLToken.prototype = Object.create(StringValuedToken.prototype);
|
|
URLToken.prototype.tokenType = "URL";
|
|
URLToken.prototype.toString = function() { return "URL("+this.value+")"; }
|
|
URLToken.prototype.toSource = function() {
|
|
return 'url("' + escapeString(this.value) + '")';
|
|
}
|
|
|
|
function NumberToken() {
|
|
this.value = null;
|
|
this.type = "integer";
|
|
this.repr = "";
|
|
}
|
|
NumberToken.prototype = Object.create(CSSParserToken.prototype);
|
|
NumberToken.prototype.tokenType = "NUMBER";
|
|
NumberToken.prototype.toString = function() {
|
|
if(this.type == "integer")
|
|
return "INT("+this.value+")";
|
|
return "NUMBER("+this.value+")";
|
|
}
|
|
NumberToken.prototype.toJSON = function() {
|
|
var json = this.constructor.prototype.constructor.prototype.toJSON.call(this);
|
|
json.value = this.value;
|
|
json.type = this.type;
|
|
json.repr = this.repr;
|
|
return json;
|
|
}
|
|
NumberToken.prototype.toSource = function() { return this.repr; };
|
|
|
|
function PercentageToken() {
|
|
this.value = null;
|
|
this.repr = "";
|
|
}
|
|
PercentageToken.prototype = Object.create(CSSParserToken.prototype);
|
|
PercentageToken.prototype.tokenType = "PERCENTAGE";
|
|
PercentageToken.prototype.toString = function() { return "PERCENTAGE("+this.value+")"; }
|
|
PercentageToken.prototype.toJSON = function() {
|
|
var json = this.constructor.prototype.constructor.prototype.toJSON.call(this);
|
|
json.value = this.value;
|
|
json.repr = this.repr;
|
|
return json;
|
|
}
|
|
PercentageToken.prototype.toSource = function() { return this.repr + "%"; }
|
|
|
|
function DimensionToken() {
|
|
this.value = null;
|
|
this.type = "integer";
|
|
this.repr = "";
|
|
this.unit = "";
|
|
}
|
|
DimensionToken.prototype = Object.create(CSSParserToken.prototype);
|
|
DimensionToken.prototype.tokenType = "DIMENSION";
|
|
DimensionToken.prototype.toString = function() { return "DIM("+this.value+","+this.unit+")"; }
|
|
DimensionToken.prototype.toJSON = function() {
|
|
var json = this.constructor.prototype.constructor.prototype.toJSON.call(this);
|
|
json.value = this.value;
|
|
json.type = this.type;
|
|
json.repr = this.repr;
|
|
json.unit = this.unit;
|
|
return json;
|
|
}
|
|
DimensionToken.prototype.toSource = function() {
|
|
var source = this.repr;
|
|
var unit = escapeIdent(this.unit);
|
|
if(unit[0].toLowerCase() == "e" && (unit[1] == "-" || between(unit.charCodeAt(1), 0x30, 0x39))) {
|
|
// Unit is ambiguous with scinot
|
|
// Remove the leading "e", replace with escape.
|
|
unit = "\\65 " + unit.slice(1, unit.length);
|
|
}
|
|
return source+unit;
|
|
}
|
|
|
|
function escapeIdent(string) {
|
|
string = ''+string;
|
|
var result = '';
|
|
var firstcode = string.charCodeAt(0);
|
|
for(var i = 0; i < string.length; i++) {
|
|
var code = string.charCodeAt(i);
|
|
if(code == 0x0) {
|
|
throw new InvalidCharacterError('Invalid character: the input contains U+0000.');
|
|
}
|
|
|
|
if(
|
|
between(code, 0x1, 0x1f) || code == 0x7f ||
|
|
(i == 0 && between(code, 0x30, 0x39)) ||
|
|
(i == 1 && between(code, 0x30, 0x39) && firstcode == 0x2d)
|
|
) {
|
|
result += '\\' + code.toString(16) + ' ';
|
|
} else if(
|
|
code >= 0x80 ||
|
|
code == 0x2d ||
|
|
code == 0x5f ||
|
|
between(code, 0x30, 0x39) ||
|
|
between(code, 0x41, 0x5a) ||
|
|
between(code, 0x61, 0x7a)
|
|
) {
|
|
result += string[i];
|
|
} else {
|
|
result += '\\' + string[i];
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
function escapeHash(string) {
|
|
// Escapes the contents of "unrestricted"-type hash tokens.
|
|
// Won't preserve the ID-ness of "id"-type hash tokens;
|
|
// use escapeIdent() for that.
|
|
string = ''+string;
|
|
var result = '';
|
|
var firstcode = string.charCodeAt(0);
|
|
for(var i = 0; i < string.length; i++) {
|
|
var code = string.charCodeAt(i);
|
|
if(code == 0x0) {
|
|
throw new InvalidCharacterError('Invalid character: the input contains U+0000.');
|
|
}
|
|
|
|
if(
|
|
code >= 0x80 ||
|
|
code == 0x2d ||
|
|
code == 0x5f ||
|
|
between(code, 0x30, 0x39) ||
|
|
between(code, 0x41, 0x5a) ||
|
|
between(code, 0x61, 0x7a)
|
|
) {
|
|
result += string[i];
|
|
} else {
|
|
result += '\\' + code.toString(16) + ' ';
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
function escapeString(string) {
|
|
string = ''+string;
|
|
var result = '';
|
|
for(var i = 0; i < string.length; i++) {
|
|
var code = string.charCodeAt(i);
|
|
|
|
if(code == 0x0) {
|
|
throw new InvalidCharacterError('Invalid character: the input contains U+0000.');
|
|
}
|
|
|
|
if(between(code, 0x1, 0x1f) || code == 0x7f) {
|
|
result += '\\' + code.toString(16) + ' ';
|
|
} else if(code == 0x22 || code == 0x5c) {
|
|
result += '\\' + string[i];
|
|
} else {
|
|
result += string[i];
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
// Exportation.
|
|
exports.tokenize = tokenize;
|
|
exports.IdentToken = IdentToken;
|
|
exports.FunctionToken = FunctionToken;
|
|
exports.AtKeywordToken = AtKeywordToken;
|
|
exports.HashToken = HashToken;
|
|
exports.StringToken = StringToken;
|
|
exports.BadStringToken = BadStringToken;
|
|
exports.URLToken = URLToken;
|
|
exports.BadURLToken = BadURLToken;
|
|
exports.DelimToken = DelimToken;
|
|
exports.NumberToken = NumberToken;
|
|
exports.PercentageToken = PercentageToken;
|
|
exports.DimensionToken = DimensionToken;
|
|
exports.IncludeMatchToken = IncludeMatchToken;
|
|
exports.DashMatchToken = DashMatchToken;
|
|
exports.PrefixMatchToken = PrefixMatchToken;
|
|
exports.SuffixMatchToken = SuffixMatchToken;
|
|
exports.SubstringMatchToken = SubstringMatchToken;
|
|
exports.ColumnToken = ColumnToken;
|
|
exports.WhitespaceToken = WhitespaceToken;
|
|
exports.CDOToken = CDOToken;
|
|
exports.CDCToken = CDCToken;
|
|
exports.ColonToken = ColonToken;
|
|
exports.SemicolonToken = SemicolonToken;
|
|
exports.CommaToken = CommaToken;
|
|
exports.OpenParenToken = OpenParenToken;
|
|
exports.CloseParenToken = CloseParenToken;
|
|
exports.OpenSquareToken = OpenSquareToken;
|
|
exports.CloseSquareToken = CloseSquareToken;
|
|
exports.OpenCurlyToken = OpenCurlyToken;
|
|
exports.CloseCurlyToken = CloseCurlyToken;
|
|
exports.EOFToken = EOFToken;
|
|
exports.CSSParserToken = CSSParserToken;
|
|
exports.GroupingToken = GroupingToken;
|
|
|
|
}));
|