1 | const sort = require('./sort');
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2 |
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3 | function repeat(s, count) {
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4 | return new Array(count + 1).join(s);
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5 | }
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6 |
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7 | function formatJSON(source, indent) {
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8 | var i = 0;
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9 | var il = 0;
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10 | var tab = (typeof indent === 'undefined') ? ' ' : indent;
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11 | var newJson = '';
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12 | var indentLevel = 0;
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13 | var inString = false;
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14 | var currentChar = null;
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15 |
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16 | for (i = 0, il = source.length; i < il; i += 1) {
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17 | currentChar = source.charAt(i);
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18 |
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19 | switch (currentChar) {
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20 | case '{':
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21 | case '[':
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22 | if (inString) {
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23 | newJson += currentChar;
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24 | } else {
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25 | newJson += currentChar + '\n' + repeat(tab, indentLevel + 1);
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26 | indentLevel += 1;
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27 | }
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28 | break;
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29 | case '}':
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30 | case ']':
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31 | if (inString) {
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32 | newJson += currentChar;
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33 | } else {
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34 | indentLevel -= 1;
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35 | newJson += '\n' + repeat(tab, indentLevel) + currentChar;
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36 | }
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37 | break;
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38 | case ',':
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39 | if (inString) {
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40 | newJson += currentChar;
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41 | } else {
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42 | newJson += ',\n' + repeat(tab, indentLevel);
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43 | }
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44 | break;
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45 | case ':':
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46 | if (inString) {
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47 | newJson += currentChar;
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48 | } else {
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49 | newJson += ': ';
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50 | }
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51 | break;
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52 | case ' ':
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53 | case '\n':
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54 | case '\t':
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55 | if (inString) {
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56 | newJson += currentChar;
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57 | }
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58 | break;
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59 | case '"':
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60 | if (i > 0 && source.charAt(i - 1) !== '\\') {
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61 | inString = !inString;
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62 | }
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63 | newJson += currentChar;
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64 | break;
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65 | default:
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66 | newJson += currentChar;
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67 | break;
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68 | }
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69 | }
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70 | return newJson;
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71 | }
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72 |
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73 | module.exports = (data, settings) => {
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74 | const sorted = settings.sort ?
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75 | sort(data) :
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76 | data;
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77 | return formatJSON(JSON.stringify(sorted), settings.indent.replace(/["']/g, ''));
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78 | };
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