RE: Need to output an opening or closing tag by itself

I have somewhat similar issue, wherein I had empty element <email/>, which I
want to be keep as empty in the resulting xml. Here it looks like:


Input:
======
<email url="xxx@xxxxxxx"/>


Output requires
================
<email url="xxx@xxxxxxx"/>
<fnt>
*Email: xxx@xxxxxxx
</fnt>


Stylesheet
======================
<xsl:template match="email[@url]">
		<xsl:copy>
			<xsl:copy-of select="@*"/>
			<fnt>
					<xsl:choose>
						<xsl:when
test="count(ancestor::meta/author)!=1">
	
<xsl:text>*Corresponding author: Email: </xsl:text>
						</xsl:when>
						<xsl:otherwise>
							<xsl:text>*Email:
</xsl:text>
						</xsl:otherwise>
					</xsl:choose>
					<xsl:value-of select="./@url"/>
				</fnt>
		</xsl:copy>
</xsl:template>


But using the above, I am getting the following, which is not the way I
wanted:

What I get
===========
<email url="xxx@xxxxxxx">
<fnt>
*Email: xxx@xxxxxxx
</fnt>
</email>


I am using few other scripting languages after XML transformations, so I've
taken care of it their, but I know its not the best way of handling the XML
inputs.


Best,

Pankaj Chaturvedi

============================================================================
================


-----Original Message-----
From: Michael Kay [mailto:mike@xxxxxxxxxxxx] 
Sent: Wednesday, June 25, 2008 3:04 PM
To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
Subject: RE:  Need to output an opening or closing tag by itself

The output of a transformation is a tree of nodes. It is not lexical XML
containing angle-bracket tags - those are produced from the result tree by
the serializer. Creating a node on the result tree is an atomic operation,
you can't create half a node.

The problem you are tackling is called positional grouping, In XSLT 2.0 you
can often tackle it using <xsl:for-each-group>. In 1.0 an appropriate
technique is often sibling recursion, where you process a sequence of
siblings one-by-one in a recursive template. You should be able to find
these techniques using a google search.

Michael Kay
http://www.saxonica.com/ 

> -----Original Message-----
> From: David Frey [mailto:dpfrey@xxxxxxx]
> Sent: 25 June 2008 05:30
> To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> Subject:  Need to output an opening or closing tag by itself
> 
> I have a simple XSLT problem for the gurus.
> 
> 
> This is my input document:
> <root>
>   <e t="a"/>
>   <f/>
>   <f/>
>   <e t="b"/>
> </root>
> 
> 
> This is the output document I want to produce:
> <root>
>   <e>
>     <f/>
>     <f/>
>   </e>
> </root>
> 
> 
> This is the stylesheet I wrote to do the transformation:
> <?xml version="1.0" encoding="UTF-8"?> <xsl:stylesheet
>   version="1.0"
>   xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
> 
>   <xsl:template match="/root">
>     <root>
>       <xsl:apply-templates/>
>     </root>
>   </xsl:template>
> 
>   <xsl:template match="e">
>     <xsl:choose>
>       <xsl:when test="@t ='a'">
>         <e>
>       </xsl:when>
>       <xsl:when test="@t ='b'">
>         </e>
>       </xsl:when>
>       <xsl:otherwise>
>         <xsl:message terminate="yes">
>           Unexpected data in attribute t.
>         </xsl:message>
>       </xsl:otherwise>
>     </xsl:choose>
>   </xsl:template>
> 
>   <xsl:template match="f">
>     <xsl:copy/>
>   </xsl:template>
> </xsl:stylesheet>
> 
> 
> Here is the Saxon output:
> $ java -jar "c:\Program Files\Saxon\saxon9.jar" -o out.xml in.xml 
> test.xslt Error on line 16 column 9 of
> file:/C:/Documents%20and%20Settings/DFREY/Desktop/test/test.xslt:
>   SXXP0003: Error reported by XML parser: The element type "e" must be 
> terminated by the
>   matching end-tag "</e>".
> Failed to compile stylesheet. 1 error detected.
> 
> 
> I understand that the source of the error is that the XSLT file is not 
> valid XML because the <e> tag doesn't have a matching </e> tag in the 
> right place.
> 
> How can I work around this issue to solve my problem?
> 
> Thanks,
> David


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