1 | 'use strict';
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2 |
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3 | Object.defineProperty(exports, "__esModule", {
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4 | value: true
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5 | });
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6 | exports.default = findExtendRule;
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7 | var extendRuleKeyWords = ['&', ':', 'extend'];
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8 | var extendRuleKeyWordsCount = extendRuleKeyWords.length;
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9 |
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10 | function findExtendRule(tokens) {
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11 | var start = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0;
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12 |
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13 | var stack = [];
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14 | var len = tokens.length;
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15 | var end = start;
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16 |
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17 | while (end < len) {
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18 | var token = tokens[end];
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19 |
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20 | if (extendRuleKeyWords.indexOf(token[1]) >= 0) {
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21 | stack.push(token[1]);
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22 | } else if (token[0] !== 'space') {
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23 | break;
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24 | }
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25 |
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26 | end++;
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27 | }
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28 |
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29 | for (var index = 0; index < extendRuleKeyWordsCount; index++) {
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30 | if (stack[index] !== extendRuleKeyWords[index]) {
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31 | return null;
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32 | }
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33 | }
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34 |
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35 | return tokens.slice(start, end);
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36 | }
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37 | module.exports = exports['default']; |
\ | No newline at end of file |