1 | import baseRepeat from './_baseRepeat';
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2 | import stringSize from './_stringSize';
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3 | import stringToArray from './_stringToArray';
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4 |
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5 |
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6 | var rsAstralRange = '\\ud800-\\udfff',
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7 | rsComboMarksRange = '\\u0300-\\u036f\\ufe20-\\ufe23',
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8 | rsComboSymbolsRange = '\\u20d0-\\u20f0',
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9 | rsVarRange = '\\ufe0e\\ufe0f';
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10 |
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11 |
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12 | var rsZWJ = '\\u200d';
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13 |
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14 |
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15 | var reHasComplexSymbol = RegExp('[' + rsZWJ + rsAstralRange + rsComboMarksRange + rsComboSymbolsRange + rsVarRange + ']');
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16 |
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17 |
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18 | var nativeCeil = Math.ceil;
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19 |
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20 |
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21 |
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22 |
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23 |
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24 |
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25 |
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26 |
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27 |
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28 |
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29 | function createPadding(length, chars) {
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30 | chars = chars === undefined ? ' ' : (chars + '');
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31 |
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32 | var charsLength = chars.length;
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33 | if (charsLength < 2) {
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34 | return charsLength ? baseRepeat(chars, length) : chars;
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35 | }
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36 | var result = baseRepeat(chars, nativeCeil(length / stringSize(chars)));
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37 | return reHasComplexSymbol.test(chars)
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38 | ? stringToArray(result).slice(0, length).join('')
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39 | : result.slice(0, length);
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40 | }
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41 |
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42 | export default createPadding;
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