1 | (function(Prism) {
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2 |
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3 | var handlebars_pattern = /\{\{\{[\w\W]+?\}\}\}|\{\{[\w\W]+?\}\}/g;
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4 |
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5 | Prism.languages.handlebars = Prism.languages.extend('markup', {
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6 | 'handlebars': {
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7 | pattern: handlebars_pattern,
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8 | inside: {
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9 | 'delimiter': {
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10 | pattern: /^\{\{\{?|\}\}\}?$/i,
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11 | alias: 'punctuation'
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12 | },
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13 | 'string': /(["'])(\\?.)+?\1/,
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14 | 'number': /\b-?(0x[\dA-Fa-f]+|\d*\.?\d+([Ee]-?\d+)?)\b/,
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15 | 'boolean': /\b(true|false)\b/,
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16 | 'block': {
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17 | pattern: /^(\s*~?\s*)[#\/]\S+/i,
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18 | lookbehind: true,
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19 | alias: 'keyword'
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20 | },
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21 | 'brackets': {
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22 | pattern: /\[[^\]]+\]/,
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23 | inside: {
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24 | punctuation: /\[|\]/,
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25 | variable: /[\w\W]+/
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26 | }
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27 | },
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28 | 'punctuation': /[!"#%&'()*+,.\/;<=>@\[\\\]^`{|}~]/,
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29 | 'variable': /[^!"#%&'()*+,.\/;<=>@\[\\\]^`{|}~]+/
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30 | }
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31 | }
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32 | });
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33 |
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34 |
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35 |
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36 | Prism.languages.insertBefore('handlebars', 'tag', {
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37 | 'handlebars-comment': {
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38 | pattern: /\{\{![\w\W]*?\}\}/,
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39 | alias: ['handlebars','comment']
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40 | }
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41 | });
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42 |
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43 |
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44 |
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45 | Prism.hooks.add('before-highlight', function(env) {
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46 | if (env.language !== 'handlebars') {
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47 | return;
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48 | }
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49 |
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50 | env.tokenStack = [];
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51 |
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52 | env.backupCode = env.code;
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53 | env.code = env.code.replace(handlebars_pattern, function(match) {
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54 | env.tokenStack.push(match);
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55 |
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56 | return '___HANDLEBARS' + env.tokenStack.length + '___';
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57 | });
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58 | });
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59 |
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60 |
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61 | Prism.hooks.add('before-insert', function(env) {
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62 | if (env.language === 'handlebars') {
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63 | env.code = env.backupCode;
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64 | delete env.backupCode;
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65 | }
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66 | });
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67 |
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68 |
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69 |
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70 | Prism.hooks.add('after-highlight', function(env) {
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71 | if (env.language !== 'handlebars') {
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72 | return;
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73 | }
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74 |
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75 | for (var i = 0, t; t = env.tokenStack[i]; i++) {
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76 | env.highlightedCode = env.highlightedCode.replace('___HANDLEBARS' + (i + 1) + '___', Prism.highlight(t, env.grammar, 'handlebars'));
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77 | }
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78 |
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79 | env.element.innerHTML = env.highlightedCode;
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80 | });
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81 |
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82 | }(Prism));
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