1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 | /* Shameless port of a shameless port @defunkt => @janl => @aq See http://github.com/defunkt/mustache for more info. */ ;(function($) { /* Shamless port of http://github.com/defunkt/mustache by Jan Lehnardt <jan@apache.org>, Alexander Lang <alex@upstream-berlin.com>, Sebastian Cohnen <sebastian.cohnen@googlemail.com> Thanks @defunkt for the awesome code. See http://github.com/defunkt/mustache for more info. */ var Mustache = function() { var Renderer = function() {}; Renderer.prototype = { otag: "{{", ctag: "}}", pragmas: {}, buffer: [], pragmas_parsed: false, render: function(template, context, partials, in_recursion) { // fail fast if(template.indexOf(this.otag) == -1) { if(in_recursion) { return template; } else { this.send(template); return; } } if(!in_recursion) { this.buffer = []; } if(!this.pragmas_parsed) { template = this.render_pragmas(template); } var html = this.render_section(template, context, partials); if(in_recursion) { return this.render_tags(html, context, partials, in_recursion); } this.render_tags(html, context, partials, in_recursion); }, /* Sends parsed lines */ send: function(line) { if(line != "") { this.buffer.push(line); } }, /* Looks for %PRAGMAS */ render_pragmas: function(template) { this.pragmas_parsed = true; // no pragmas if(template.indexOf(this.otag + "%") == -1) { return template; } var that = this; var regex = new RegExp(this.otag + "%([\\w_-]+) ?([\\w]+=[\\w]+)?" + this.ctag); return template.replace(regex, function(match, pragma, options) { that.pragmas[pragma] = {}; if(options) { var opts = options.split("="); that.pragmas[pragma][opts[0]] = opts[1]; } return ""; // ignore unknown pragmas silently }); }, /* Tries to find a partial in the global scope and render it */ render_partial: function(name, context, partials) { if(typeof(context[name]) != "object") { throw({message: "subcontext for '" + name + "' is not an object"}); } if(!partials || !partials[name]) { throw({message: "unknown_partial '" + name + "'"}); } return this.render(partials[name], context[name], partials, true); }, /* Renders boolean and enumerable sections */ render_section: function(template, context, partials) { if(template.indexOf(this.otag + "#") == -1) { return template; } var that = this; // CSW - Added "+?" so it finds the tighest bound, not the widest var regex = new RegExp(this.otag + "\\#(.+)" + this.ctag + "\\s*([\\s\\S]+?)" + this.otag + "\\/\\1" + this.ctag + "\\s*", "mg"); // for each {{#foo}}{{/foo}} section do... return template.replace(regex, function(match, name, content) { var value = that.find(name, context); if(that.is_array(value)) { // Enumerable, Let's loop! return that.map(value, function(row) { return that.render(content, that.merge(context, that.create_context(row)), partials, true); }).join(""); } else if(value) { // boolean section return that.render(content, context, partials, true); } else { return ""; } }); }, /* Replace {{foo}} and friends with values from our view */ render_tags: function(template, context, partials, in_recursion) { // tit for tat var that = this; var new_regex = function() { return new RegExp(that.otag + "(=|!|>|\\{|%)?([^\/#]+?)\\1?" + that.ctag + "+", "g"); }; var regex = new_regex(); var lines = template.split("\n"); for (var i=0; i < lines.length; i++) { lines[i] = lines[i].replace(regex, function(match, operator, name) { switch(operator) { case "!": // ignore comments return match; case "=": // set new delimiters, rebuild the replace regexp that.set_delimiters(name); regex = new_regex(); return ""; case ">": // render partial return that.render_partial(name, context, partials); case "{": // the triple mustache is unescaped return that.find(name, context); default: // escape the value return that.escape(that.find(name, context)); } }, this); if(!in_recursion) { this.send(lines[i]); } } if(in_recursion) { return lines.join("\n"); } }, set_delimiters: function(delimiters) { var dels = delimiters.split(" "); this.otag = this.escape_regex(dels[0]); this.ctag = this.escape_regex(dels[1]); }, escape_regex: function(text) { // thank you Simon Willison if(!arguments.callee.sRE) { var specials = [ '/', '.', '*', '+', '?', '|', '(', ')', '[', ']', '{', '}', '\\' ]; arguments.callee.sRE = new RegExp( '(\\' + specials.join('|\\') + ')', 'g' ); } return text.replace(arguments.callee.sRE, '\\$1'); }, /* find `name` in current `context`. That is find me a value from the view object */ find: function(name, context) { name = this.trim(name); if(typeof context[name] === "function") { return context[name].apply(context); } if(context[name] !== undefined) { return context[name]; } // silently ignore unkown variables return ""; }, // Utility methods /* Does away with nasty characters */ escape: function(s) { return ((s == null) ? "" : s).toString().replace(/[&"<>\\]/g, function(s) { switch(s) { case "&": return "&"; case "\\": return "\\\\";; case '"': return '\"';; case "<": return "<"; case ">": return ">"; default: return s; } }); }, /* Merges all properties of object `b` into object `a`. `b.property` overwrites a.property` */ merge: function(a, b) { var _new = {}; for(var name in a) { if(a.hasOwnProperty(name)) { _new[name] = a[name]; } }; for(var name in b) { if(b.hasOwnProperty(name)) { _new[name] = b[name]; } }; return _new; }, // by @langalex, support for arrays of strings create_context: function(_context) { if(this.is_object(_context)) { return _context; } else if(this.pragmas["IMPLICIT-ITERATOR"]) { var iterator = this.pragmas["IMPLICIT-ITERATOR"].iterator || "."; var ctx = {}; ctx[iterator] = _context return ctx; } }, is_object: function(a) { return a && typeof a == "object"; }, is_array: function(a) { return Object.prototype.toString.call(a) === '[object Array]'; }, /* Gets rid of leading and trailing whitespace */ trim: function(s) { return s.replace(/^\s*|\s*$/g, ""); }, /* Why, why, why? Because IE. Cry, cry cry. */ map: function(array, fn) { if (typeof array.map == "function") { return array.map(fn) } else { var r = []; var l = array.length; for(i=0;i<l;i++) { r.push(fn(array[i])); } return r; } } }; return({ name: "mustache.js", version: "0.2.3-dev", /* Turns a template and view into HTML */ to_html: function(template, view, partials, send_fun) { var renderer = new Renderer(); if(send_fun) { renderer.send = send_fun; } renderer.render(template, view, partials); if(!send_fun) { return renderer.buffer.join("\n"); } } }); }(); $.mustache = Mustache.to_html; })(jQuery); |