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doT.js
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doT.js
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// doT.js
// 2011, Laura Doktorova, https://github.com/olado/doT
// Licensed under the MIT license.
(function() {
"use strict";
var doT = {
version: '1.0.0',
templateSettings: {
evaluate: /\{\{([\s\S]+?\}?)\}\}/g,
interpolate: /\{\{=([\s\S]+?)\}\}/g,
encode: /\{\{!([\s\S]+?)\}\}/g,
use: /\{\{#([\s\S]+?)\}\}/g,
useParams: /(^|[^\w$])def(?:\.|\[[\'\"])([\w$\.]+)(?:[\'\"]\])?\s*\:\s*([\w$\.]+|\"[^\"]+\"|\'[^\']+\'|\{[^\}]+\})/g,
define: /\{\{##\s*([\w\.$]+)\s*(\:|=)([\s\S]+?)#\}\}/g,
defineParams:/^\s*([\w$]+):([\s\S]+)/,
conditional: /\{\{\?(\?)?\s*([\s\S]*?)\s*\}\}/g,
iterate: /\{\{~\s*(?:\}\}|([\s\S]+?)\s*\:\s*([\w$]+)\s*(?:\:\s*([\w$]+))?\s*\}\})/g,
varname: 'it',
strip: true,
append: true,
selfcontained: false
},
template: undefined, //fn, compile template
compile: undefined //fn, for express
};
if (typeof module !== 'undefined' && module.exports) {
module.exports = doT;
} else if (typeof define === 'function' && define.amd) {
define(function(){return doT;});
} else {
(function(){ return this || (0,eval)('this'); }()).doT = doT;
}
function encodeHTMLSource() {
var encodeHTMLRules = { "&": "&", "<": "<", ">": ">", '"': '"', "'": ''', "/": '/' },
matchHTML = /&(?!#?\w+;)|<|>|"|'|\//g;
return function() {
return this ? this.replace(matchHTML, function(m) {return encodeHTMLRules[m] || m;}) : this;
};
}
String.prototype.encodeHTML = encodeHTMLSource();
var startend = {
append: { start: "'+(", end: ")+'", endencode: "||'').toString().encodeHTML()+'" },
split: { start: "';out+=(", end: ");out+='", endencode: "||'').toString().encodeHTML();out+='"}
}, skip = /$^/;
function resolveDefs(c, block, def) {
return ((typeof block === 'string') ? block : block.toString())
.replace(c.define || skip, function(m, code, assign, value) {
if (code.indexOf('def.') === 0) {
code = code.substring(4);
}
if (!(code in def)) {
if (assign === ':') {
if (c.defineParams) value.replace(c.defineParams, function(m, param, v) {
def[code] = {arg: param, text: v};
});
if (!(code in def)) def[code]= value;
} else {
new Function("def", "def['"+code+"']=" + value)(def);
}
}
return '';
})
.replace(c.use || skip, function(m, code) {
if (c.useParams) code = code.replace(c.useParams, function(m, s, d, param) {
if (def[d] && def[d].arg && param) {
var rw = (d+":"+param).replace(/'|\\/g, '_');
def.__exp = def.__exp || {};
def.__exp[rw] = def[d].text.replace(new RegExp("(^|[^\\w$])" + def[d].arg + "([^\\w$])", "g"), "$1" + param + "$2");
return s + "def.__exp['"+rw+"']";
}
});
var v = new Function("def", "return " + code)(def);
return v ? resolveDefs(c, v, def) : v;
});
}
function unescape(code) {
return code.replace(/\\('|\\)/g, "$1").replace(/[\r\t\n]/g, ' ');
}
doT.template = function(tmpl, c, def) {
c = c || doT.templateSettings;
var cse = c.append ? startend.append : startend.split, needhtmlencode, sid = 0, indv,
str = (c.use || c.define) ? resolveDefs(c, tmpl, def || {}) : tmpl;
str = ("var out='" + (c.strip ? str.replace(/(^|\r|\n)\t* +| +\t*(\r|\n|$)/g,' ')
.replace(/\r|\n|\t|\/\*[\s\S]*?\*\//g,''): str)
.replace(/'|\\/g, '\\$&')
.replace(c.interpolate || skip, function(m, code) {
return cse.start + unescape(code) + cse.end;
})
.replace(c.encode || skip, function(m, code) {
needhtmlencode = true;
return cse.start + unescape(code) + cse.endencode;
})
.replace(c.conditional || skip, function(m, elsecase, code) {
return elsecase ?
(code ? "';}else if(" + unescape(code) + "){out+='" : "';}else{out+='") :
(code ? "';if(" + unescape(code) + "){out+='" : "';}out+='");
})
.replace(c.iterate || skip, function(m, iterate, vname, iname) {
if (!iterate) return "';} } out+='";
sid+=1; indv=iname || "i"+sid; iterate=unescape(iterate);
return "';var arr"+sid+"="+iterate+";if(arr"+sid+"){var "+vname+","+indv+"=-1,l"+sid+"=arr"+sid+".length-1;while("+indv+"<l"+sid+"){"
+vname+"=arr"+sid+"["+indv+"+=1];out+='";
})
.replace(c.evaluate || skip, function(m, code) {
return "';" + unescape(code) + "out+='";
})
+ "';return out;")
.replace(/\n/g, '\\n').replace(/\t/g, '\\t').replace(/\r/g, '\\r')
.replace(/(\s|;|\}|^|\{)out\+='';/g, '$1').replace(/\+''/g, '')
.replace(/(\s|;|\}|^|\{)out\+=''\+/g,'$1out+=');
if (needhtmlencode && c.selfcontained) {
str = "String.prototype.encodeHTML=(" + encodeHTMLSource.toString() + "());" + str;
}
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);
};
})();