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RE: [xml-dev] [OT] bugs in JDK regex engine ?
- From: "Michael Kay" <mike@saxonica.com>
- To: "'Mukul Gandhi'" <gandhi.mukul@gmail.com>,<xml-dev@lists.xml.org>
- Date: Mon, 4 Feb 2008 07:53:33 -0000
> Pattern pattern = Pattern.compile("<[^/]+>");
>
> I am expecting output:
> <root>
> <abc x='1'>
> <pqr y='1'>
>
> But the output produced by the above program is:
> <root><abc x='1'>
> <pqr y='1'>
>
> You could notice, that the 1st token is larger ...
>
"+" is a greedy quantifier, it matches the longest string it can. To match
the shortest string, use [^/]+? or you could try [^/<]+
But as Amy points out, we're not helping you. We're just taking you one step
further to demonstrating what is already known as a theoretical result -
this problem can't be solved using regular expressions.
Michael Kay
http://www.saxonica.com/
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