http://www.w3.org/TR/xslt20/#d5e7759
The WD Spec contains the first of the above examples. The second was
added by me, because it is perfectly legal now, according to the
current WD Spec.
from reading the spec I don't think that these
<xsl:variable name="x" select="0"/>
<xsl:variable name="x" select="3"/>
<xsl:variable name="x" select="$x + 2"/>
are legal
in that what my impression is that you mean the following would be
legal:
<xsl:template match="/">
<xsl:variable name="x" select="0"/>
<xsl:variable name="x" select="3"/>
<xsl:variable name="x" select="$x + 2"/>
</xsl:template>
it seems to me that is clearly illegal.
However it seems (from reading the spec) that the following would be
legal:
<xsl:variable name="global" select="'text'"/>
<xsl:template match="/">
<xsl:variable name="global" select="'newtext'"/>
<xsl:variable name="globalnew">
<xsl:variable name="global" select="concat($global,'hi')"/>
<xsl:value-of select="$global"/>
</xsl:variable>
<result><xsl:value-of select="$globalnew"/></result>
</xsl:template>
according to these rules of shadowing variables they have.
I'm not sure if this would be legal (I'd check but I don't have the xslt
2.0 version of saxon on my machine anymore)
<xsl:variable name="global" select="'text'"/>
<p><xsl:variable name="global"
select="concat('new',$global)"/><xsl:value-of select="$global"/></p>
but I'm thinking that this might be?
<xsl:variable name="global" select="'text'"/>
<xsl:element name="p"><xsl:variable name="global"
select="concat('new',$global)"/> )"/><xsl:value-of
select="$global"/></xsl:element>
taking somewhat further the ability in xsl 1.0 I never like of being
able to declare a variable globally and locally. I tend just to name all
my local variables loc{globalVariableName} if there is a relationship.
XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list