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/*! | |
* jstemplate: a light & fast js tamplate engine | |
* License MIT (c) 岑安 | |
*/ | |
var name = "jae"; | |
;(function (name, definition) { | |
if (typeof define == 'function') define(definition); | |
else if (typeof module != 'undefined') module.exports = definition(); | |
else this[name] = definition(); | |
})('jstemplate', function () { | |
var context = this, | |
_cache = {}, | |
vars = 'var ', | |
varsInTpl, | |
codeArr = ''.trim ? | |
['ret = "";', 'ret +=', ';', 'ret;'] | |
:['ret = [];', 'ret.push("', '")', 'ret.join("");'], | |
keys = ('break,case,catch,continue,debugger,default,delete,do,else,false,finally,for,function,if' | |
+ ',in,instanceof,new,null,return,switch,this,throw,true,try,typeof,var,void,while,with' | |
// Reserved words | |
+ ',abstract,boolean,byte,char,class,const,double,enum,export,extends,final,float,goto' | |
+ ',implements,import,int,interface,long,native,package,private,protected,public,short' | |
+ ',static,super,synchronized,throws,transient,volatile' | |
// ECMA 5 - use strict | |
+ ',arguments,let,yield').split(','), | |
keyMap = {}; | |
for (var i = 0; i < keys.length; i ++) { | |
keyMap[keys[i]] = 1; | |
} | |
function _getCompileFn (source) { | |
var openArr = source.split(jstemplate.openTag), | |
tmpCode = ''; | |
for (var i = 0; i < openArr.length; i ++) { | |
var c = openArr[i], | |
cArr = c.split(jstemplate.closeTag); | |
if (cArr.length == 1) { | |
tmpCode += _html(cArr[0]); | |
} else { | |
tmpCode += _js(cArr[0]); | |
tmpCode += cArr[1] ? _html(cArr[1]) : ''; | |
} | |
} | |
var code = vars + codeArr[0] + tmpCode + 'return ' + codeArr[3]; | |
var fn = new Function('$data', code); | |
return fn; | |
} | |
function _html (s) { | |
s = s | |
.replace(/('|"|\\)/g, '\\$1') | |
.replace(/\r/g, '\\r') | |
.replace(/\n/g, '\\n'); | |
s = codeArr[1] + '"' + s + '"' + codeArr[2]; | |
return s + '\n'; | |
} | |
function _js (s) { | |
if (/^=/.test(s)) { | |
s = codeArr[1] + s.substring(1).replace(/[\s;]*$/, '') + codeArr[2]; | |
} | |
dealWithVars(s); | |
return s + '\n'; | |
} | |
function dealWithVars (s) { | |
s = s.replace(/\/\*.*?\*\/|'[^']*'|"[^"]*"|\.[\$\w]+/g, ''); | |
var sarr = s.split(/[^\$\w\d]+/); | |
for (var i = 0; i < sarr.length; i ++) { | |
var c = sarr[i]; | |
if (!c || keyMap[c] || /^\d/.test(c)) { | |
continue; | |
} | |
if (!varsInTpl[c]) { | |
vars += (c + '= $data.' + c + ','); | |
varsInTpl[c] = 1; | |
} | |
} | |
} | |
function jstemplate (id, source, data) { | |
if (typeof arguments[1] == 'object' && arguments[2] == undefined) { | |
data = source; | |
source = id; | |
id = null; | |
} | |
return (id && _cache[id]) ? _cache[id](data) : jstemplate.compile(id, source, data); | |
} | |
jstemplate.compile = function (id, source, data) { | |
vars = 'var '; | |
varsInTpl = {}; | |
var compileFn = _getCompileFn(source); | |
if (id) { | |
_cache[id] = compileFn; | |
} | |
//console.log(compileFn) | |
return compileFn(data); | |
} | |
jstemplate.openTag = '<%'; | |
jstemplate.closeTag = '%>'; | |
context.jstemplate = jstemplate; | |
return jstemplate; | |
}); |
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