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[XSL-LIST Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: Change the value of global variables/params ??
 David,
Please consider the following XML and XSL. Note that I have no control
over the XML. That is, it is what it is, I can not have the structure of
the XML changed.
Note also that the following XML and XSL has been "cut-down" to only
show those parts that are relevant to our discussion. Also the tag names
have been changed to protect our information.
You will see in the XSL below, that I use a "changable" variable to
allow grouping. Can you tell me another way to produce the same output
without a "changable" variable ?
Paul
----------------------------- Sample XML ----------------------
<?xml version="1.0"?>
<TOP>
<LEVEL1>
<LEVEL2>
<GROUP>
<ITEM>
<NAME>Name1</NAME>
<INFO>
<INFOTYPE>
<ID1>001</ID1>
<ID2>001</ID2>
<ITEMTYPE>TYPE1</ITEMTYPE>
</INFOTYPE>
</INFO>
</ITEM>
<ITEM>
<NAME>Name2</NAME>
<INFO>
<INFOTYPE>
<ID1>002</ID1>
<ID2>002</ID2>
<ITEMTYPE>TYPE1</ITEMTYPE>
</INFOTYPE>
</INFO>
</ITEM>
<ITEM>
<NAME>Name3</NAME>
<INFO>
<INFOTYPE>
<ID1>003</ID1>
<ID2>003</ID2>
<ITEMTYPE>TYPE2</ITEMTYPE>
</INFOTYPE>
</INFO>
</ITEM>
<ITEM>
<NAME>Name4</NAME>
<INFO>
<INFOTYPE>
<ID1>004</ID1>
<ID2>004</ID2>
<ITEMTYPE>TYPE2</ITEMTYPE>
</INFOTYPE>
</INFO>
</ITEM>
</GROUP>
</LEVEL2>
</LEVEL1>
</TOP>
----------------------------- Sample XSL ----------------------
<?xml version="1.0"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/XSL/Transform/1.0">
<!--
For the above XML, generate the following HTML
<HTML>
<BODY>
<H1>TYPE1</H1>
<P>Name1</P>
<P>Name2</P>
<H1>TYPE2</H1>
<P>Name3</P>
<P>Name4</P>
</BODY>
</HTML>
-->
<xsl:output method="html"/>
<xsl:template match="/">
<HTML>
<BODY>
<!-- initialize our changing variable -->
<xsl:variable name="last_type" select="'none'"
/> <!-- initialize variable -->
<!-- for each item -->
<xsl:for-each select="//ITEM">
<!-- sort the list of items first by type, and then by name -->
<xsl:sort select=".//ITEMTYPE" data-type="text"
order="ascending"/>
<xsl:sort select=".//NAME" data-type="text" order="ascending"/>
<!-- if this item's type is different than the previous item's
type
<xsl:if test="$last_type !=
.//ITEMTYPE"> <!-- test variable -->
<!-- update the last_type variable -->
<xsl:variable name="last_type"
select=".//ITEMTYPE"/> <!-- change variable -->
<!-- output the new type -->
<H1><xsl:value-of select=".//ITEMTYPE"/></H1>
</xsl:if>
<!-- output the item name -->
<P><xsl:value-of select=".//NAME"/></P>
</xsl:for-each>
</BODY>
</HTML>
</xsl:template>
</xsl:stylesheet>
David Carlisle wrote:
> <xsl:template name="sub">
> <xsl:variable name="foo" select="'abc'"/>
> <xsl:value-of select="$foo"/>
> <xsl:variable name="foo" select="'def'"/>
> <xsl:value-of select="$foo"/>
> </xsl:template>
>
> Calling this template will output -- abcdef
>
> that was legal xsl until one of the later drafts, October perhaps
> can't remember exactly when they decided to ban such `shadowing'.
> There is no way you can ever need such a feature as it is always
> possible to change the second variable name to foo2. You are
> not really changing the value f foo, just declaring a new variable with
> the same name that `hides' the first. As it is always possible to tell
> just from the position in the template, which variable is being
> referenced by $foo no functionality is lost by insisting that the second
> variable has a different name.
>
> David
>
> XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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