感谢海浪提供的正则,原贴请参见:
[url]http://www.iecn.net/bbs/view/106503.html[/url]

因为要做个模板替换的东西,里面的变量采用${MyName}这种格式的命名方式。在进行全局替换时,遇到两个难点:
1.要么无法替换掉$等特殊符号
2.要么无法忽略大小写

在海浪有帮助下,终于有了最佳实现方式:)

最佳实现方式
Copy code
<. type="text/.">
String.prototype.replaceAll = stringReplaceAll;

function stringReplaceAll(AFindText,ARepText){
var raRegExp = new RegExp(AFindText.replace(/([\(\)\[\]\{\}\^\$\+\-\*\?\.\"\'\|\/\\])/g,"\\$1"),"ig");
return this.replace(raRegExp,ARepText);
}

var ssString="[url]www.cnlei.com;[url]www.CnLei.net;www.cnlei.org[/url]";[/url]
alert(ssString.replaceAll("cnlei","iecn"));

ssString="[url]www.$[/url]{MyName}.com;[url]www.$[/url]{MyName}.net;[url]www.$[/url]{MyName}.org";
alert(ssString.replaceAll("${MyName}","cnlei"));

ssString="www.{MyName}.com;www.{MyName}.net;www.{MyName}.org";
alert(ssString.replaceAll("{MyName}","cnlei"));
</.>


以前使用方法一:(可实现忽略大小,但无法实现特殊符号的替换)
Copy code
<. type="text/.">
String.prototype.replaceString = stringReplaceAll;

function stringReplaceAll(AFindText,ARepText){
var raRegExp = new RegExp(AFindText,"ig");
return this.replace(raRegExp,ARepText);
}

var ssString="[url]www.cnlei.com;[url]www.CnLei.net;www.cnlei.org[/url]";[/url]
alert(ssString.replaceString("cnlei","iecn"));

ssString="[url]www.$[/url]{MyName}.com;[url]www.$[/url]{MyName}.net;[url]www.$[/url]{MyName}.org";
alert(ssString.replaceString("${MyName}","cnlei"));

ssString="www.{MyName}.com;www.{MyName}.net;www.{MyName}.org";
alert(ssString.replaceString("{MyName}","cnlei"));
</.>


以前使用的方式二:(可替换特殊符号$等,但无法忽略大小写)
Copy code
<. type="text/.">
String.prototype.replaceString = function(s1,s2){
this.str=this;
if(s1.length==0)return this.str;
var idx=this.str.indexOf(s1);
while(idx>=0){
this.str=this.str.substring(0, idx)+s2+this.str.substr(idx+s1.length);
idx=this.str.indexOf(s1);
}
return this.str;
}
var ssString="[url]www.cnlei.com;[url]www.CnLei.net;www.cnlei.org[/url]";[/url]
alert(ssString.replaceString("cnlei","iecn"));

ssString="[url]www.$[/url]{MyName}.com;[url]www.$[/url]{MyName}.net;[url]www.$[/url]{MyName}.org";
alert(ssString.replaceString("${MyName}","cnlei"));

ssString="www.{MyName}.com;www.{MyName}.net;www.{MyName}.org";
alert(ssString.replaceString("{MyName}","cnlei"));
</.>