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Re: How can I use a variable out of it scope ?

Subject: Re: How can I use a variable out of it scope ?
From: "frank Stein" <freeposte@xxxxxxxxxxx>
Date: Wed, 31 Jan 2001 10:12:07
it scope
> I would like to use a variable out of it scope.

You can't.

I understand.


If you said what you were trying to do at a higher level, perhaps
someone may suggest how it would be done more naturally in XSLT.


I'm using the following XML input document : ... <Level_1 Name="Name_1"> ... </Level_1> ... <Level_1 Name="Name_n"> <Level_2 Name="Name_2"> </Level_2> ... <Level_2 Name="Name_n"> </Level_2> ... </Level_1> ...

The following code puts on "my_var" the totality of the Name attributes of each element "Level_1" :

<xsl:template match="Level_1">

	<xsl:variable name="my_var">
		<xsl:for-each select="Level_2">
			<xsl:value-of select="./@Name"/>
		 </xsl:for-each>
	</xsl:variable>
     <xsl:apply-template/>

</xsl:template>

Now myvar contains "Name_1Name_2...Name_n..." as a string.
And I want to use it on the Level_2 match:

<xsl:template match="Level_2">
<!-- Here I would like to use my_var but I can't cause I'm out of "my_var" scope -->
<!-- Do you know how can I recover "Name_1Name_2...Name_n..." ? -->
</xsl:template>



From: David Carlisle <davidc@xxxxxxxxx>
Reply-To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
Subject: Re:  How can I use a variable out of it scope ?
Date: Wed, 31 Jan 2001 09:28:00 GMT

> I would like to use a variable out of it scope.

You can't.


> <xsl:template match="level_2"> > <!-- How could I use "my_var" ? --> > </xsl:template>

Some processors have extension functions that allow this (saxon:assign
being one of the guilty parties) but the design of XSLT is totally
influenced by the fact that it is a side effect free language.

It's not that imperative programming is necessarily evil, but if you
want to program in that style it makes more sense to use a language that
has assignment statements (omnimark, perl, ....) rather than trying to
twist a language that does not.

If you said what you were trying to do at a higher level, perhaps
someone may suggest how it would be done more naturally in XSLT.

David

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