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RE: [xsl] remove relative path

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Thanks Jon, I have this working now, thanks for your pointers.

Gav...

> -----Original Message-----
> From: Jon Gorman [mailto:jonathan.gorman@xxxxxxxxx]
> Sent: Wednesday, 17 May 2006 8:30 AM
> To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> Subject: Re: [xsl] remove relative path
> 
> On 5/16/06, Gav.... <brightoncomputers@xxxxxxxxxxxxxxxxxxx> wrote:
> > Hi All,
> >
> > I have looked through the list, archives etc and come up some code based
> on
> > what I summized from it, but of course it does not work.
> >
> > For an OS project, I'm trying to remove all ../ from the supplied @src
> path.
> > Obviously they can be nested values too such as  ../../../
> >
> > So I need to remove all these leaving just the filename. (I can then
> prepend
> > A predetermined path onto it.)
> >
> > I have a template :-
> >
> > <xsl:template name="removedotdots">
> >           <xsl:param name="path"/>
> >           <xsl:variable name="removedirs"
> > select="substring-after(string($path),'../')"/>
> >           <xsl:variable name="removeagain"
> > select="starts-with(string($removedirs),'../')"/>
> >           <xsl:if test="$removeagain">
> >                   <xsl:call-template name="removedotdots">
> >                           <xsl:with-param name="path"
> > select="substring-after(string($removedirs),'../')"/>
> >                   </xsl:call-template>
> >           </xsl:if>
> >           </xsl:template>
> 
> But what if it's five levels?  Fifteen?  Why do this approach?
> Recursion is your friend with XSLT.
> 
> XSLT 2.0 has better ways, and probably so does XSLT 1.0.  But right
> off the top of my head even without thinking, I can come up with a
> recursive way:
> 
> Something like:
> 
> 
> <xsl:template match="path">
> 
> <filename>
> <xsl:call-template name="getFilename">
> <xsl:with-param name="path_string" select="." />
> </xsl:call-template>
> 
> </filename>
> </xsl:template>
> 
> <xsl:template name="getFilename">
> <xsl:param name="path_string" />
> <xsl:choose>
> <xsl:when test="starts-with($path_string,'../')">
> 	<xsl:call-template name="getFilename">
> 	<xsl:with-param	name="path_string"
> select="substring-after($path_string,'../')" />
> </xsl:call-template>
> </xsl:when>
> <xsl:when test="starts-with($path_string,'/../')">
> <xsl:call-template name="getFilename">
> <xsl:with-param name="path_string"
> select="substring-after($path_string,'/../')" />
> </xsl:call-template>
> </xsl:when>
> <xsl:otherwise>
> <xsl:value-of select="$path_string"/>
> </xsl:otherwise>
> </xsl:choose>
> 
> </xsl:template>
> 
> This assuming the path is an element in path, but it should be
> straightforward enough to figure out.
> 
> There's probably lots of other ways to do this.
> 
> 
> Jon Gorman
> 
> 
> 
> 
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