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271
node_modules/postcss-selector-parser/dist/tokenize.js
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node_modules/postcss-selector-parser/dist/tokenize.js
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"use strict";
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exports.__esModule = true;
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exports["default"] = tokenize;
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exports.FIELDS = void 0;
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var t = _interopRequireWildcard(require("./tokenTypes"));
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var _unescapable, _wordDelimiters;
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function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function _getRequireWildcardCache() { return cache; }; return cache; }
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function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
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var unescapable = (_unescapable = {}, _unescapable[t.tab] = true, _unescapable[t.newline] = true, _unescapable[t.cr] = true, _unescapable[t.feed] = true, _unescapable);
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var wordDelimiters = (_wordDelimiters = {}, _wordDelimiters[t.space] = true, _wordDelimiters[t.tab] = true, _wordDelimiters[t.newline] = true, _wordDelimiters[t.cr] = true, _wordDelimiters[t.feed] = true, _wordDelimiters[t.ampersand] = true, _wordDelimiters[t.asterisk] = true, _wordDelimiters[t.bang] = true, _wordDelimiters[t.comma] = true, _wordDelimiters[t.colon] = true, _wordDelimiters[t.semicolon] = true, _wordDelimiters[t.openParenthesis] = true, _wordDelimiters[t.closeParenthesis] = true, _wordDelimiters[t.openSquare] = true, _wordDelimiters[t.closeSquare] = true, _wordDelimiters[t.singleQuote] = true, _wordDelimiters[t.doubleQuote] = true, _wordDelimiters[t.plus] = true, _wordDelimiters[t.pipe] = true, _wordDelimiters[t.tilde] = true, _wordDelimiters[t.greaterThan] = true, _wordDelimiters[t.equals] = true, _wordDelimiters[t.dollar] = true, _wordDelimiters[t.caret] = true, _wordDelimiters[t.slash] = true, _wordDelimiters);
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var hex = {};
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var hexChars = "0123456789abcdefABCDEF";
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for (var i = 0; i < hexChars.length; i++) {
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hex[hexChars.charCodeAt(i)] = true;
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}
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/**
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* Returns the last index of the bar css word
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* @param {string} css The string in which the word begins
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* @param {number} start The index into the string where word's first letter occurs
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*/
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function consumeWord(css, start) {
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var next = start;
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var code;
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do {
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code = css.charCodeAt(next);
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if (wordDelimiters[code]) {
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return next - 1;
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} else if (code === t.backslash) {
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next = consumeEscape(css, next) + 1;
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} else {
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// All other characters are part of the word
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next++;
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}
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} while (next < css.length);
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return next - 1;
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}
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/**
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* Returns the last index of the escape sequence
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* @param {string} css The string in which the sequence begins
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* @param {number} start The index into the string where escape character (`\`) occurs.
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*/
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function consumeEscape(css, start) {
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var next = start;
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var code = css.charCodeAt(next + 1);
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if (unescapable[code]) {// just consume the escape char
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} else if (hex[code]) {
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var hexDigits = 0; // consume up to 6 hex chars
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do {
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next++;
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hexDigits++;
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code = css.charCodeAt(next + 1);
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} while (hex[code] && hexDigits < 6); // if fewer than 6 hex chars, a trailing space ends the escape
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if (hexDigits < 6 && code === t.space) {
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next++;
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}
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} else {
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// the next char is part of the current word
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next++;
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}
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return next;
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}
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var FIELDS = {
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TYPE: 0,
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START_LINE: 1,
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START_COL: 2,
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END_LINE: 3,
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END_COL: 4,
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START_POS: 5,
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END_POS: 6
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};
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exports.FIELDS = FIELDS;
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function tokenize(input) {
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var tokens = [];
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var css = input.css.valueOf();
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var _css = css,
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length = _css.length;
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var offset = -1;
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var line = 1;
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var start = 0;
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var end = 0;
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var code, content, endColumn, endLine, escaped, escapePos, last, lines, next, nextLine, nextOffset, quote, tokenType;
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function unclosed(what, fix) {
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if (input.safe) {
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// fyi: this is never set to true.
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css += fix;
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next = css.length - 1;
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} else {
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throw input.error('Unclosed ' + what, line, start - offset, start);
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}
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}
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while (start < length) {
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code = css.charCodeAt(start);
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if (code === t.newline) {
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offset = start;
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line += 1;
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}
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switch (code) {
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case t.space:
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case t.tab:
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case t.newline:
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case t.cr:
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case t.feed:
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next = start;
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do {
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next += 1;
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code = css.charCodeAt(next);
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if (code === t.newline) {
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offset = next;
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line += 1;
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}
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} while (code === t.space || code === t.newline || code === t.tab || code === t.cr || code === t.feed);
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tokenType = t.space;
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endLine = line;
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endColumn = next - offset - 1;
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end = next;
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break;
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case t.plus:
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case t.greaterThan:
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case t.tilde:
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case t.pipe:
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next = start;
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do {
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next += 1;
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code = css.charCodeAt(next);
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} while (code === t.plus || code === t.greaterThan || code === t.tilde || code === t.pipe);
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tokenType = t.combinator;
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endLine = line;
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endColumn = start - offset;
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end = next;
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break;
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// Consume these characters as single tokens.
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case t.asterisk:
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case t.ampersand:
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case t.bang:
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case t.comma:
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case t.equals:
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case t.dollar:
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case t.caret:
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case t.openSquare:
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case t.closeSquare:
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case t.colon:
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case t.semicolon:
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case t.openParenthesis:
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case t.closeParenthesis:
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next = start;
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tokenType = code;
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endLine = line;
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endColumn = start - offset;
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end = next + 1;
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break;
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case t.singleQuote:
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case t.doubleQuote:
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quote = code === t.singleQuote ? "'" : '"';
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next = start;
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do {
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escaped = false;
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next = css.indexOf(quote, next + 1);
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if (next === -1) {
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unclosed('quote', quote);
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}
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escapePos = next;
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while (css.charCodeAt(escapePos - 1) === t.backslash) {
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escapePos -= 1;
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escaped = !escaped;
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}
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} while (escaped);
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tokenType = t.str;
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endLine = line;
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endColumn = start - offset;
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end = next + 1;
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break;
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default:
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if (code === t.slash && css.charCodeAt(start + 1) === t.asterisk) {
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next = css.indexOf('*/', start + 2) + 1;
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if (next === 0) {
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unclosed('comment', '*/');
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}
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content = css.slice(start, next + 1);
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lines = content.split('\n');
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last = lines.length - 1;
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if (last > 0) {
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nextLine = line + last;
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nextOffset = next - lines[last].length;
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} else {
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nextLine = line;
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nextOffset = offset;
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}
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tokenType = t.comment;
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line = nextLine;
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endLine = nextLine;
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endColumn = next - nextOffset;
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} else if (code === t.slash) {
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next = start;
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tokenType = code;
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endLine = line;
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endColumn = start - offset;
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end = next + 1;
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} else {
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next = consumeWord(css, start);
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tokenType = t.word;
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endLine = line;
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endColumn = next - offset;
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}
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end = next + 1;
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break;
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} // Ensure that the token structure remains consistent
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tokens.push([tokenType, // [0] Token type
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line, // [1] Starting line
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start - offset, // [2] Starting column
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endLine, // [3] Ending line
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endColumn, // [4] Ending column
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start, // [5] Start position / Source index
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end // [6] End position
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]); // Reset offset for the next token
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if (nextOffset) {
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offset = nextOffset;
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nextOffset = null;
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}
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start = end;
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}
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return tokens;
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}
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