doT.js
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// doT.js
// 2011, Laura Doktorova
// https://github.com/olado/doT
//
// doT.js is an open source component of http://bebedo.com
//
// doT is a custom blend of templating functions from jQote2.js
// (jQuery plugin) by aefxx (http://aefxx.com/jquery-plugins/jqote2/)
// and underscore.js (http://documentcloud.github.com/underscore/)
// plus extensions.
//
// Licensed under the MIT license.
//
(function() {
var doT = { version : '0.1.7' };
if (typeof module !== 'undefined' && module.exports) {
module.exports = doT;
} else {
this.doT = doT;
}
doT.templateSettings = {
evaluate: /\{\{([\s\S]+?)\}\}/g,
interpolate: /\{\{=([\s\S]+?)\}\}/g,
encode: /\{\{!([\s\S]+?)\}\}/g,
use: /\{\{#([\s\S]+?)\}\}/g, //compile time evaluation
define: /\{\{##\s*([\w\.$]+)\s*(\:|=)([\s\S]+?)#\}\}/g, //compile time defs
conditionalStart: /\{\{\?([\s\S]+?)\}\}/g,
conditionalEnd: /\{\{\?\}\}/g,
varname: 'it',
strip : true,
append: true
};
function resolveDefs(c, block, def) {
return ((typeof block === 'string') ? block : block.toString())
.replace(c.define, function (match, code, assign, value) {
if (code.indexOf('def.') === 0) {
code = code.substring(4);
}
if (!(code in def)) {
if (assign === ':') {
def[code]= value;
} else {
eval("def[code]=" + value);
}
}
return '';
})
.replace(c.use, function(match, code) {
var v = eval(code);
return v ? resolveDefs(c, v, def) : v;
});
}
doT.template = function(tmpl, c, def) {
c = c || doT.templateSettings;
var cstart = c.append ? "'+(" : "';out+=(", // optimal choice depends on platform/size of templates
cend = c.append ? ")+'" : ");out+='";
var str = (c.use || c.define) ? resolveDefs(c, tmpl, def || {}) : tmpl;
str = ("var out='" +
((c.strip) ? str.replace(/\s*<!\[CDATA\[\s*|\s*\]\]>\s*|[\r\n\t]|(\/\*[\s\S]*?\*\/)/g, ''): str)
.replace(/\\/g, '\\\\')
.replace(/'/g, "\\'")
.replace(c.interpolate, function(match, code) {
return cstart + code.replace(/\\'/g, "'").replace(/\\\\/g,"\\").replace(/[\r\t\n]/g, ' ') + cend;
})
.replace(c.encode, function(match, code) {
return cstart + code.replace(/\\'/g, "'").replace(/\\\\/g, "\\").replace(/[\r\t\n]/g, ' ') + ").toString().replace(/&(?!\\w+;)/g, '&').split('<').join('<').split('>').join('>').split('" + '"' + "').join('"').split(" + '"' + "'" + '"' + ").join(''').split('/').join('/'" + cend;
})
.replace(c.conditionalEnd, function(match, expression) {
return "';}out+='";
})
.replace(c.conditionalStart, function(match, expression) {
var code = "if(" + expression + "){";
return "';" + code.replace(/\\'/g, "'").replace(/\\\\/g,"\\").replace(/[\r\t\n]/g, ' ') + "out+='";
})
.replace(c.evaluate, function(match, code) {
return "';" + code.replace(/\\'/g, "'").replace(/\\\\/g,"\\").replace(/[\r\t\n]/g, ' ') + "out+='";
})
+ "';return out;")
.replace(/\n/g, '\\n')
.replace(/\t/g, '\\t')
.replace(/\r/g, '\\r')
.split("out+='';").join('')
.split("var out='';out+=").join('var out=');
try {
return new Function(c.varname, str);
} catch (e) {
if (typeof console !== 'undefined') console.log("Could not create a template function: " + str);
throw e;
}
};
doT.compile = function(tmpl, def) {
return doT.template(tmpl, null, def);
};
}());