1 | /*
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2 | * grunt
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3 | * https://github.com/cowboy/grunt
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4 | *
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5 | * Copyright (c) 2012 "Cowboy" Ben Alman
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6 | * Licensed under the MIT license.
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7 | * http://benalman.com/about/license/
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8 | */
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9 |
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10 | var grunt = require('../grunt');
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11 |
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12 | // The module to be exported.
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13 | var template = module.exports = {};
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14 |
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15 | // External libs.
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16 | template.date = require('dateformat');
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17 |
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18 | // Format today's date.
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19 | template.today = function(format) {
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20 | return template.date(new Date(), format);
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21 | };
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22 |
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23 | // Set underscore template delimiters.
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24 | template.delimiters = function(mode) {
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25 | var modes = {
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26 | // The underscore default template syntax should be a pretty sane default.
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27 | default: {
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28 | // Used by grunt.
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29 | opener: '<%',
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30 | // Used by underscore.
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31 | evaluate: /<%([\s\S]+?)%>/g,
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32 | interpolate: /<%=([\s\S]+?)%>/g,
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33 | escape: /<%-([\s\S]+?)%>/g
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34 | },
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35 | // The "init" task needs separate delimiters to avoid conflicts, so the <>
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36 | // are replaced with {}. Otherwise, they behave the same.
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37 | init: {
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38 | // Used by grunt.
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39 | opener: '{%',
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40 | // Used by underscore.
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41 | evaluate: /\{%([\s\S]+?)%\}/g,
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42 | interpolate: /\{%=([\s\S]+?)%\}/g,
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43 | escape: /\{%-([\s\S]+?)%\}/g
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44 | }
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45 | };
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46 | var settings = modes[mode in modes ? mode : 'default'];
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47 | grunt.utils._.templateSettings = settings;
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48 | // Get opener character for grunt to use.
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49 | var opener = settings.opener;
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50 | // Remove it from the underscore object and return it.
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51 | delete settings.opener;
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52 | return opener;
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53 | };
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54 |
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55 | // Process template + data with underscore.
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56 | template.process = function(template, data, mode) {
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57 | // Set delimiters, and get a opening match character.
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58 | var opener = grunt.template.delimiters(mode);
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59 | // Clone data, initializing to config data or empty object if omitted.
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60 | data = Object.create(data || grunt.config() || {});
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61 | // Expose grunt so that grunt utilities can be accessed, but only if it
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62 | // doesn't conflict with an existing .grunt property.
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63 | if (!('grunt' in data)) { data.grunt = grunt; }
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64 | // Keep track of last change.
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65 | var last = template;
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66 | try {
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67 | // As long as template contains template tags, render it and get the result,
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68 | // otherwise just use the template string.
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69 | while (template.indexOf(opener) >= 0) {
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70 | template = grunt.utils._.template(template)(data);
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71 | // Abort if template didn't change - nothing left to process!
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72 | if (template === last) { break; }
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73 | last = template;
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74 | }
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75 | } catch (e) {
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76 | grunt.warn('An error occurred while processing a template (' + e.message + ').');
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77 | }
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78 | // Normalize linefeeds and return.
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79 | return grunt.utils.normalizelf(template);
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80 | };
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