RE: How to trim leading and trailing spaces in xsl:at

I use XSLT 2.0, so my useful shortcut works for me.

Also, that was intentional. I have often had trouble with line breaks in 
XSLT, so I generally put those kinds of structures on a single line. Most 
of the time, it's just because I'm fussy about how the output appears, but 
it does occasionally make a significant difference.

Jay Bryant
Bryant Communication Services
(presently consulting at Synergistic Solution Technologies)




"Karr, David" <david.karr@xxxxxxxx> 
05/25/2005 01:28 PM
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RE:  How to trim leading and trailing spaces in xsl:attribute?






Using "normalize-space()" in my "xsl:value-of" element doesn't address
the issue.  It's not spaces in the variable I'm referencing that is an
issue, it's the spaces that I produce by adding a newline after
"<xsl:attribute ...>".  I thought your "useful shortcut" would solve my
problem, but that doesn't work for me.  It fails, saying "select" is not
a valid attribute for "xsl:attribute".

I would guess the only way to come close to addressing this is adding
the newline after "<xsl:value-of", as you did in your reply (either
intentionally or unintentionally), instead of after "<xsl:attribute
...>".

> -----Original Message-----
> From: JBryant@xxxxxxxxx [mailto:JBryant@xxxxxxxxx] 
> 
> Hi, David,
> 
> Take a peek at the normalize-space function. You can use it like this:
> 
> <xsl:attribute name="myAttribute"><xsl:value-of 
> select="normalize-space(widget)"/></xsl:attribute>
> 
> A useful shortcut, by the way:
> 
> <xsl:attribute name="myAttribute" select="normalize-space(widget)"/>
> 
> Speaking of shortcuts, you can use an Attribute Value 
> Template (AVT) for a 
> lot of these kinds of issues. For example:
> 
> <xsl:element name="something">
>   <xsl:attribute name="myAttribute"><xsl:value-of 
> select="normalize-space(widget)"/></xsl:attribute>
> </xsl:element>
> 
> can often be replaced by:
> 
> <something myAttribute="{normalize-space(widget)}"/>
> 
> Of course, you occasionally must use the more verbose way, 
> such as for 
> attributes that are present sometimes and absent other times.
> 
> Jay Bryant
> Bryant Communication Services
> (presently consulting at Synergistic Solution Technologies)
> 
> 
> 
> 
> "Karr, David" <david.karr@xxxxxxxx> 
> 05/25/2005 12:41 PM
> Please respond to
> xsl-list@xxxxxxxxxxxxxxxxxxxxxx
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> 
> To
> <xsl-list@xxxxxxxxxxxxxxxxxxxxxx>
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> Subject
>  How to trim leading and trailing spaces in xsl:attribute?
> 
> 
> 
> 
> 
> 
> I have an "<xsl:attribute>" element in my stylesheet, and its 
> value is an "<xsl:value-of>" reference which then calls an 
> XPATH function.  The resulting single line is a little ugly. 
> I'd like to format the line so it's a little more readable. 
> Unfortunately, I appear to be limited by the semantics of the 
> "<xsl:attribute>" element.  It does not trim leading and 
> trailing spaces, and it encodes any newlines found in the 
> resulting value.
> 
> I'm using JDK 1.4.2, in case there are constraints in the 
> native TRAX implementation inherent in that.