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From "Bill Burton" <bi...@progress.com>
Subject Re: [DVSL] #match and unions fail?
Date Thu, 07 Mar 2002 00:55:30 GMT
Hello,

Just for the record, if anyone runs into this issue, there's a bug in
jaxen utilized by dom4j-1.1.1 included with DVSL 0.42 and with the current
dom4j-1.2.  The fix is to patch org.jaxen.pattern.UnionPattern as follows:

--- org/jaxen/pattern/UnionPattern.java.orig    Wed Aug  8 17:29:49 2001
+++ org/jaxen/pattern/UnionPattern.java Wed Mar  6 01:39:51 2002
@@ -91,7 +91,7 @@
     public Pattern simplify()
     {
         this.lhs = lhs.simplify();
-        this.rhs = lhs.simplify();
+        this.rhs = rhs.simplify();
         init();
         return this;
     }

Thanks Bob for the pointer to jaxen.

-Bill

Bill Burton wrote:
> 
> Hello,
> 
> I'm attempting to use the #match directive with unions to match one node
> or another:
>     #match( "aaa | bbb" )
> What I'm finding is it matches "aaa" nodes but not "bbb" nodes.
> 
> The real easy way to reproduce this is to modify
> examples/simple/docs/example1.dvsl changing:
>     #match("document")
> to
>     #match("aaa | document")
> it will then fail to match on "document" and not output the <html>
> section.  However, changing it to:
>     #match("document | aaa")
> does work.
> 
> I'm assuming this is really a dom4j issue so I upgraded to version 1.2 but
> this hasn't helped.  I'm attempting to reproduce this using the dom4j
> API's.  In the meantime, I'm open to suggestions.
> 
> -Bill

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