RE: variable question

Subject: RE: variable question
From: Mike Brown <mbrown@xxxxxxxxxxxxx>
Date: Wed, 29 Dec 1999 15:23:59 -0700
>   <xsl:template match="MYROOT">
>     <xsl:variable name="BusinessPartnerContract">
>      This is a business partner contract.
>     </xsl:variable>
>   ...
>   </xsl:template>

As you have discovered, a variable assignment only has scope along the
descendant and following-sibling axes. To make the variable available for
use in another template, you have two options:

1. Set it at the top level, somewhere between the xsl:stylesheet and the
first xsl:template. This makes it available to all templates, but is bad if
it needs to have different values at different times.

2. Make sure it is in scope at the point where you call or apply the other
templates, and pass it as a parameter.

  <xsl:variable name="foo" select="'some string'"/>
  <xsl:call-template name="pageHeader">
    <xsl:with-param name="bar" select="$foo"/>
  </xsl:call-template>
...
<xsl:template name="pageHeader">
  <xsl:param name="bar"/>
  <xsl:value-of select="$bar"/>
</xsl:template>

This can be inconvenient but it does ensure that each template operates
independently of the others; with the exception of parameters that must be
explicitly passed and received, one template can't set a state or have a
side effect that another template can be aware of.


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