1 | import globalize from './internal/globalize';
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2 |
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4 |
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5 |
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6 |
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7 |
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8 |
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9 |
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10 | function alphanum (a, b) {
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11 | a = (a + '').toLowerCase();
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12 | b = (b + '').toLowerCase();
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13 |
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14 | var chunks = /(\d+|\D+)/g;
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15 | var am = a.match(chunks);
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16 | var bm = b.match(chunks);
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17 | var len = Math.max(am.length, bm.length);
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18 |
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19 | for (var i = 0; i < len; i++) {
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20 | if (i === am.length) {
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21 | return -1;
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22 | }
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23 |
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24 | if (i === bm.length) {
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25 | return 1;
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26 | }
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27 |
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28 | var ad = parseInt(am[i], 10) + '';
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29 | var bd = parseInt(bm[i], 10) + '';
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30 |
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31 | if (ad === am[i] && bd === bm[i] && ad !== bd) {
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32 | return (ad - bd) / Math.abs(ad - bd);
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33 | }
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34 |
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35 | if ((ad !== am[i] || bd !== bm[i]) && am[i] !== bm[i]) {
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36 | return am[i] < bm[i] ? -1 : 1;
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37 | }
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38 | }
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39 |
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40 | return 0;
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41 | }
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42 |
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43 | globalize('alphanum', alphanum);
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44 |
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45 | export default alphanum;
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