1 | var postcss = require('postcss');
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2 |
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3 | function shouldSetZeroBasis(basisValue) {
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4 | if (!basisValue) {
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5 | return false;
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6 | }
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7 | return basisValue === '0' || basisValue.replace(/\s/g, '') === '0px';
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8 | }
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9 |
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10 | function properBasis(basis) {
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11 | if (shouldSetZeroBasis(basis)) {
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12 | return '0%';
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13 | }
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14 | return basis;
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15 | }
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16 |
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17 | module.exports = function(decl) {
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18 | if (decl.prop === 'flex') {
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19 | var values = postcss.list.space(decl.value);
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20 |
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21 |
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22 | var flexGrow = '0';
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23 | var flexShrink = '1';
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24 | var flexBasis = '0%';
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25 |
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26 | if (values[0]) {
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27 | flexGrow = values[0];
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28 | }
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29 |
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30 | if (values[1]) {
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31 | if (!isNaN(values[1])) {
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32 | flexShrink = values[1];
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33 | } else {
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34 | flexBasis = values[1];
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35 | }
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36 | }
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37 |
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38 | if (values[2]) {
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39 | flexBasis = values[2];
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40 | }
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41 |
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42 | decl.value = flexGrow + ' ' + flexShrink + ' ' + properBasis(flexBasis);
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43 | }
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44 | };
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