I'll preface this with the disclaimer that I'm new to XSLT too... ;-)
You can put the variable declaration before you first template match.
For example (where claim_file is the root node in the source XML document) :
<xsl:stylesheet
version="2.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
xmlns:xs="http://www.w3.org/2001/XMLSchema";
xmlns:saxon="http://saxon.sf.net/";>
<xsl:output method="text" />
<xsl:variable name="my_nice_variable">
"put variable contents here"
</xsl:variable>
<xsl:template match="claim_file">
foo code here
</xsl:template>
</xsl:stylesheet>
This would be a global variable. Something I had trouble adjusting to in
XSLT is that variables cannot change contents once they are created. So if
you put something in a global scope variable, its contents cannot change
throughout the life of the stylsheet.
If you put a variable within a template scope, the variable gets destroyed
and created each time that template is used.
Something else cool that I do a lot with variables with global scope is if
you are needing to massage your data bit before using it, you can do that in
a variable before the first template match is used. This is helpful if you
need to restrucutre your data (this also might make your Xpath statements
easier to read and debug).
Does that make the waters clear as mud?
--Jim Neff
-----Original Message-----
From: Paulo Mendes Pinto [mailto:paulo(_dot_)pinto(_at_)dsts(_dot_)pt]
Sent: Tuesday, February 01, 2005 10:23 AM
To: xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com
Subject: RE: [xsl] Use XSL:Variable
Obrigado António.
Something I've learn from you response: I have to define my
variable in / and not in template.
If someone can post here examples of use of variable defined
as global, assign in one template and used in another, that
will be nice.
Tkx in avance
Realmente ter tugas nestas listas é sempre interessante.... um abraço
PMP
-----Original Message-----
From: António Mota [mailto:amsmota(_at_)gmail(_dot_)com]
Sent: terça-feira, 1 de Fevereiro de 2005 15:16
To: xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com
Subject: Re: [xsl] Use XSL:Variable
Ora viva, é sempre bom encontrar um compatriota :)
I'm not one of the lists experts, there are many people here who
really excels in this area, making this one of the most
useful lists
i've seen. But i can point some obvious things.
First, there are no "tags" in XSL, XSL works on "nodes" not
on "tags".
So you work by selecting nodes, apllying temnplates on then, etc...
Second your var
<xsl:template match="ObjectFormat">
<xsl:variable name="FileExtention"><xsl:value-of
select="@FileExtention"/></xsl:variable>
</xsl:template>
exist only inside the template where you define it, so you
can't use
it anywhere else. You'll have to define it at the root
level you want
it to be global. But it's not clear what you're trying to do, you
should post more info, along with examples of your XML .
That template
like it is does nothing...
Fica bem...
On Tue, 1 Feb 2005 15:04:24 -0000, Paulo Mendes Pinto
<paulo(_dot_)pinto(_at_)dsts(_dot_)pt> wrote:
Hello
I'm new at this List and new in XSL and I have many problems
understanding how
to do something.
I have a XML that I want to transform to in a CSV text file to
import to Excel. Until
now I have the text file like I want with the char set that
I want but
there is something that I want and I don't know how.
In my XML I have a CONTROL tag with some information that
I will use
in the other
tags. Some of the tags in CONTROL tag will concatenate with
some tags
along the rest the XML.
I have to get some data from the CONTROL tag and save it in a
variable and use to
concatenate with fields is another tag.
How can I do that? I was trying to do like this.
<xsl:template match="CONTROL">
<xsl:apply-templates/>
</xsl:template>
<xsl:template match="ObjectFormat">
<xsl:variable name="FileExtention"><xsl:value-of
select="@FileExtention"/></xsl:variable>
</xsl:template>
The FileExtention is an Attribute of Object Format tag in CONTROL.
<xsl:template match="ObjectIndex">
<xsl:value-of select="@Code"/><xsl:text>;</xsl:text>
<xsl:value-of select="@Description"/><xsl:text>;</xsl:text>
<xsl:copy-of select="$FileExtention" /><xsl:text>|</xsl:text>
<xsl:text>
</xsl:text> </xsl:template>
With this XSL I get an error:
Invalid variable referenceError in XPath expression. Invalid
variable reference
How can I use this variable?
Tkx in advance
Paulo Aboim Pinto
Engenheiro de Produto
======================
DSTS - Desenvolvimento e Integração de Serviços e Tecnologia, S.A.
Tel.(+351)21 092 56 28
Fax.(+351)21 092 56 29
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