lite
Version:
A cross platform template engine base on xml/html and javascript expression.
75 lines (70 loc) • 1.82 kB
JavaScript
/*
* List Template
* License LGPL(您可以在任何地方免费使用,但请不要吝啬您对框架本身的改进)
* http://www.xidea.org/project/lite/
* @author jindw
* @version $Id: template.js,v 1.4 2008/02/28 14:39:06 jindw Exp $
*/
exports.buildTopChain=buildTopChain;
/**
* 解析链对象
*/
function buildTopChain(context){
function TopChain(){
}
TopChain.prototype = context;
var pt = TopChain.prototype = new TopChain();
pt.index = context._nodeParsers.length;
pt.subIndex = -1;
pt.getSubChain = getSubChain;
pt.next = doNext;
pt.constructor = TopChain;
return new TopChain();
}
function doNext(node){
//console.info(typeof node,node&& node.tagName)
if (this.subIndex > 0) {
var next = this.getSubChain(this.subIndex - 1);
} else {
next = this.nextChain||buildNext(this,this.index-1);
}
doParse(node,next);
}
function doParse(node,chain){
//try{
var parser = chain._nodeParsers[chain.index];
if(parser == null){
console.error('解析栈异常',parser,chain.index,chain._nodeParsers);
}
parser(node,chain,chain);
//}catch(e){
// console.error("解析器执行异常："+parser,e)
// throw e;
//}
}
function getSubChain(subIndex){
if (this.subChains == null) {
this.subChains =[];
}
var i = this.subChains.length;
for (;i <= subIndex; i++) {
var subChain = new this.constructor();
subChain.index = this.index
//subChain.nodeType = this.nodeType;
subChain.subIndex = i;
subChain.subChains = this.subChains;
this.subChains.push(subChain);
}
if (subChain == null) {
subChain = this.subChains[subIndex];
}
return subChain;
}
function buildNext(thiz,index){
if(index>=0){
var n = new thiz.constructor();
n.index = index
return thiz.nextChain = n;
}
return null;
}