RE: [Dynapi-Dev] reqexp help needed

Fri, 20 Jul 2001 06:46:00 -0700 

>is there someway to
>count the amount of "<div" tags, and continue the search until an equal
>amount +1 of "</div>" tags have been matched?

if you use the replace function, you can assign a function as the replace value for 
grouped items(i.e. in parens)

for example

var countDiv=0;
var DivIDs =[];

var re = new RegExp("(\<div\s+id=\"?(.+)[\" ](.*?)<\/div>)","i");

myString.replace(re,function(){
     DivIDs[countDiv++] = arguments[2];
     return arguments[1];
    });

I haven't tested this, and I may have my arguments in the wrong place here(and who 
knows how many other bugs), but I think you might be able to at least get an idea from 
this.

Hope this helps,

Chris
-----Original Message-----
From: Richard Bennett [mailto:[EMAIL PROTECTED]]
Sent: Friday, July 20, 2001 4:28 AM
To: [EMAIL PROTECTED]
Subject: [Dynapi-Dev] reqexp help needed


Hi,
I know there's a couple of regexp wizards on the list, I wonder if someone
can help with this:

It's part of an improved inline-layer code I'm working on (thanks to some
ideas from Joshua Hewitt) , where all browsers can get the HTML of the
layer. For NS4 it involves parsing this html out of the body of the
document.
I have this working fine now, but am a bit stuck getting the regexps to
recognize nested <div> tags, what I have so far:

docValue holds the complete html from between the <body> tags:

function getHTML(id,docValue){
      var re=new RegExp("(<div id=\""+id+"(.*?)<\/div>)","i");
      var arr = re.exec(docValue)
      var outer=(arr)?arr[0]:null
      var re2=new RegExp(">(.*?)</div>")
      var arr2 = re2.exec(outer)
      var inner=(arr2)?arr2[1]:null
      alert(outer)
      alert(inner)
}

currently I'm using two steps, first one gets the outer html for a div tag
with the passed id, second one gets whatever is between ">" and "</div>" -
the inner html.
The problem arises when the div contains child divs, is there someway to
count the amount of "<div" tags, and continue the search until an equal
amount +1 of "</div>" tags have been matched?

Richard.


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