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regexp in java script to get text between tags

Posted on 1998-07-31
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Last Modified: 2008-02-07
I've been using the folowing to strip out content in a document thats between certain tags and return the results in an array. There are multiple instances of this tag.
What I've been using looks like;

arrA = data.match(/<DATA>(.*)<\/DATA>/gi);
      
for (x=0; x<arrA.length; x++)
      Response.Write(arrA + "<BR>");

But all this does is return 1 result between the first data tag and the very last tag. Ignoring the tags in between. I should get a number of results.

I hope this makes sense


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Question by:matthewallum
3 Comments
 
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Expert Comment

by:someu
ID: 1267511
How are you going to use the result??
It's for making a function or not.
someu@hotmail.com
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Author Comment

by:matthewallum
ID: 1267512
I made a mistake in the line above, it should read;

Response.Write(arrA[x] + "<BR>");

sorry.
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Accepted Solution

by:
bernfarr earned 100 total points
ID: 1267513
The way that the regular expression is written it would only return one value, I believe. Did you look at what was printed by your code?

I think you need to process the result with a further match operation where you specify the separators between your data tokens. In other words, what character, or characters separate your data values.  Assuming that each token was separated by a newline, you would need code something like: (This is untested)

allData = data.match(/<DATA>(.*)<\/DATA>/gi);

arrA = allData.match(/(\w+)$/gi);

for (x=0; x<arrA.length; x++)
  Response.Write(arrA + "<BR>");


Note that I always find regular expressions a pain to get right. Using Emacs, you can test them on a regular text file first.
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