1 | var Marker = require('../tokenizer/marker');
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2 |
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3 | function split(value, separator) {
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4 | var openLevel = Marker.OPEN_ROUND_BRACKET;
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5 | var closeLevel = Marker.CLOSE_ROUND_BRACKET;
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6 | var level = 0;
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7 | var cursor = 0;
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8 | var lastStart = 0;
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9 | var lastValue;
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10 | var lastCharacter;
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11 | var len = value.length;
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12 | var parts = [];
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13 |
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14 | if (value.indexOf(separator) == -1) {
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15 | return [value];
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16 | }
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17 |
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18 | if (value.indexOf(openLevel) == -1) {
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19 | return value.split(separator);
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20 | }
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21 |
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22 | while (cursor < len) {
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23 | if (value[cursor] == openLevel) {
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24 | level++;
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25 | } else if (value[cursor] == closeLevel) {
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26 | level--;
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27 | }
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28 |
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29 | if (level === 0 && cursor > 0 && cursor + 1 < len && value[cursor] == separator) {
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30 | parts.push(value.substring(lastStart, cursor));
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31 | lastStart = cursor + 1;
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32 | }
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33 |
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34 | cursor++;
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35 | }
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36 |
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37 | if (lastStart < cursor + 1) {
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38 | lastValue = value.substring(lastStart);
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39 | lastCharacter = lastValue[lastValue.length - 1];
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40 | if (lastCharacter == separator) {
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41 | lastValue = lastValue.substring(0, lastValue.length - 1);
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42 | }
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43 |
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44 | parts.push(lastValue);
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45 | }
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46 |
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47 | return parts;
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48 | }
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49 |
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50 | module.exports = split;
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