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Date: Thu, 29 Dec 2005 17:22:38 +0100
From: Torsten Stolpmann <Torsten.Stolpmann@verit.de>
Organization: verit Informationssysteme GmbH
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To: user@forrest.apache.org
Subject: Re: OutOfMemoryException with customized project sitemap. Was:
 linkmap
 customization
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> The solution is therefore to use a regexp matcher in the project sitemap 
> so that it does not match body-* and menu-* etc. This will allow you to 
> use the sitemap extension mechanism without touching the core sitemap. I 
> *strongly* advise against touching any of the core Forrest files as it 
> will cause problems for you in upgrading Forrest in the future.
> 
> There are examples of regexp matchers in the core sitemap. I'm pretty 
> poor with regular expressions, if you don't know what to put in the 
> pattern ask here, I'm sure there will be someone who can tell you how to 
> match
> 
> **.html but not (**/menu-*.html or **/body-*.html or **/tabs-*.html)
> 
> (I think they are the only ones you need to avoid).
>

So this would be something like ^(?!tab-|menu-|body-).*.html$ and 
^.*/(?!tab-|menu-|body-).*.html$ respectivly.

Unfortunatly jakarta-regexp (which is used inside cocoon) doesn't seem 
to support the negative lookahead (?!...) and gives me a 
'RESyntaxException: Syntax error: Missing operand to closure'.

This already been reported on the regexp mailing list (See: 
http://permalink.gmane.org/gmane.comp.jakarta.regexp.user/168).

Too bad - jakarta-oro supports perl5 regexps.

I'll go hunting for a supported regexp and will report in later.

A big thanks to all who were replying so far!

Torsten