RE: [xsl] Using HTML entity codes within XSL?

[ Richie B]
>	I'm trying to do something like the following in XSL:
> 
> <xsl:template match="/">
>   <html>
>   <body>
> 	&pound;<xsl:value-of select="data/premiumAmount" />
>   </body>
>   </html>
> </xsl:template>
> 
> I'd like to output HTML character entities to a browser, so 
> that the browser will render the correct character 
> internally, independent of the user's set-up, rather than 
> having to use something like a pound symbol "£" for the 
> Latin-1 character set - but I obviously get an error if I try 
> to use "&pound;" within the XSL ("Reference to undefined 
> entity 'pound'.").  The solution at 
> http://www.dpawson.co.uk/xsl/characters.html
> says to specify 
> the character set, but this would defeat the purpose, and 
> also systems aren't required to understand any encodings 
> other than UTF-8 and UTF-16.  

Actually, character references, like &#160;, are independent of the encoding. You can use them and let the processor's serializer take care of handling the encoding.  Of course, some code points may not have a representation in a particular encoding so the browser could not display them, but that is a separate issue (unrelated to XML).

You can also tell the browser what encoding is in use with the right <META> element, and most of the main xslt processors will output iso-8859-1 (Latin-1) as well as utf-8 and utf-16..

> Is there a way I can, in some 
> form, use something like "&pound;" or another character 
> reference (such as "&eacute;") in my XSL without specifying a 
> specific character set/number to use?  Also, I've noticed I 
> can already use certain codes such as "&amp;" and "&gt;" - is 
> there a list of defined codes which can be used in XSL?
> 

You can declare entities like those in a DTD, but you still have to specify them which usually requires using a character reference in the DTD declaration of the entity.  You might just as well look up the code for the characters you want and use character references directly.  They will generally work in the browser.

Cheers,

Tom P

 XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list

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