Re: [xsl] xsl problem (xalan:nodeset)

["poppe chris" <pc_poppe@xxxxxxxxxxx>]

Hello,

first of all thanks for this reply cause it has helped me in solving my 
problems. I had a further question regarding the xalan:nodeset
you used something like

<xsl:stylesheet version="1.0" 
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"; 
xmlns:xalan="http://xml.apache.org/xalan";
exclude-result-prefixes="xalan">

I dont really understand what this does (being the noob that i am) 
especially the exclude-result-prefixes.
I use a java xslt processor (org.apache.xalan.xslt.Process), so when i use 
the xalan namespace, can i process this stylesheet with other processors 
too?

regards,
Chris Poppe


> From: Mukul Gandhi <mukulgandhi2003@xxxxxxxxxxx>
> Reply-To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> Subject: Re: [xsl] xsl problem
> Date: Tue, 30 Mar 2004 19:03:19 +0100 (BST)
>
> Hi Chris,
>   Please find below the solution to the problem
> described by you -
>
> <?xml version="1.0" encoding="UTF-8"?>
> <xsl:stylesheet version="1.0"
> xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
> xmlns:xalan="http://xml.apache.org/xalan";
> exclude-result-prefixes="xalan">
> <xsl:output method="xml" version="1.0"
> encoding="UTF-8" indent="yes"/>
>
> <xsl:template match="/root">
>    <xsl:apply-templates select="GOP/content"/>
> </xsl:template>
>
> <xsl:template match="GOP/content">
>   <xsl:variable name="rtf">
>      <xsl:for-each select="*">
> 	<xsl:if test="name() = 'A' ">
> 	  <A>						     <xsl:call-template name="process-a1">
> 		<xsl:with-param name="str" select="."/>
>              </xsl:call-template>
> 	  </A>
> 	</xsl:if>
>      </xsl:for-each>
>   </xsl:variable>
>
>   <header>
>     <size>
> 	<xsl:value-of select="sum(xalan:nodeset($rtf)/A)"/>
>     </size>
>   </header>
>   <xsl:for-each select="*">
>     <xsl:if test="name() = 'A' ">
>       <A>
> 	<xsl:call-template name="process-a2">
> 	   <xsl:with-param name="str" select="."/>
> 	</xsl:call-template>
>       </A>
>     </xsl:if>
>     <xsl:if test="name() = 'B' ">
>        <xsl:copy-of select="." />
>     </xsl:if>
>   </xsl:for-each>
> </xsl:template>
>
> <xsl:template name="process-a1">
>   <xsl:param name="str"/>
>   <xsl:variable name="str1"
> select="substring-after($str, ' ')"/>
>   <xsl:if test="$str1 &lt; 10">
>     <xsl:value-of select="$str1 + 3"/>
>   </xsl:if>
>   <xsl:if test="not($str1 &lt; 10)">
>     <xsl:value-of select="$str1"/>
>   </xsl:if>
> </xsl:template>
>
> <xsl:template name="process-a2">
>    <xsl:param name="str"/>
>    <xsl:variable name="str1"
> select="substring-before($str, ' ')"/>
>    <xsl:variable name="str2"
> select="substring-after($str, ' ')"/>
>    <xsl:value-of select="$str1" /><xsl:text>
> </xsl:text>
>    <xsl:if test="$str2 &lt; 10">
>       <xsl:value-of select="$str2 + 3"/>
>    </xsl:if>
>    <xsl:if test="not($str2 &lt; 10)">
>       <xsl:value-of select="$str2"/>
>    </xsl:if>
> </xsl:template>
>
> </xsl:stylesheet>
>
> I have used the nodeset extension function, to do two
> pass traversal of the XML by the stylesheet.
>
> I added the <root> tag to make the XML well-formed.
>
> Regards,
> Mukul
>
>
>  --- poppe chris <pc_poppe@xxxxxxxxxxx> wrote: >
> Hello, Im facing the following problem,
> >
> > I have a xml file like this, in wich an A element
> > contains an offset (20,
> > 30, 40) and a length (5, 10, 5) and the size element
> > in the header is the
> > sum of the lengths.
> >
> >    <header>
> >            <size>20</size>
> >    </header>
> >    <GOP>
> >      <content>
> >          <A>20 5</A>
> >          <B/>
> >          <A>30 10</A>
> >          <A>40 5</A>
> >          <B/>
> >       </content>
> >    </GOP>
> >
> > What i want to do is match any A element and alter
> > the length for example
> > everywhere + 3 except for lenghts greater then or
> > equal to 10. But the
> > problem is that I then have to change the size.
> > So the outputxml file should be:
> >
> >    <header>
> >            <size>26</size>
> >    </header>
> >    <GOP>
> >      <content>
> >          <A>20 8</A>
> >          <B/>
> >          <A>30 10</A>
> >          <A>40 8</A>
> >          <B/>
> >       </content>
> >    </GOP>
> >
> > I dont have a problem changing the A elements but i
> > do have a problem in
> > changing the size to the right number. Currently im
> > using 2 xsl files to
> > solve this, one to change the A elements and put the
> > changed length in an
> > helper element, this produces the following xml file
> >
> >    <header>
> >            <size>20</size>
> >    </header>
> >    <GOP>
> >      <content>
> >          <A>20 8</A>
> >          <help>8</help>
> >          <B/>
> >          <A>30 10</A>
> >          <help>10</help>
> >          <A>40 8</A>
> >           <help>8</help>
> >          <B/>
> >       </content>
> >    </GOP>
> >
> > And then i use another xsl transformation to change
> > the size.
> >
> > I would love to see all this happen in one xsl
> > transformation,
> >
> > anyone got any idea's?
> > greetings,
> > Chris
> >
> >
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