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[xsl] Function within an expression

Subject: [xsl] Function within an expression
From: "Jim Neff" <jneff@xxxxxxxxxxxxxxx>
Date: Wed, 5 Jan 2005 13:10:08 -0500

Is it possible to do a function inside of an expression?

Here is my XSL code:

<xsl:for-each select="$lines">
<xsl:apply-templates select="$field_definitions/*[@type = (substring(., 1,
<xsl:sort select="field_no" order="ascending" data-type="number"/>
<xsl:with-param name="current_context" select="."/>


My question is in regards to the substring function in the apply-templates

The current context of the $lines variable will look something like this:

"AA0 12345 fdsajl129..."  

I'm trying to match the first three characters of that string.

If I can't do this, can I create a variable for this for-each ONLY?  

Thanks again,
Jim neff

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