RE: How to use an XML-based LUT with XSLT?

Oops,

The example at the end of my message should use the correct key name:

<xsl:value-of select="key('translate-error', ActualErrorCode)"/>

// tt

> -----Original Message-----
> From: Taras Tielkes [mailto:taras@xxxxxxx]
> Sent: Thursday, September 27, 2001 5:19 PM
> To: 'xsl-list@xxxxxxxxxxxxxxxxxxxxxx'
> Subject: RE:  How to use an XML-based LUT with XSLT?
> 
> 
> Hi Xavier,
> 
> As far as I understand, your XML source, and the XML 
> containing the mapping
> table are separate files.
> XSLT has a function to access external XML documents, it's called
> "document()".
> You could adapt your value-of element to something like:
> 
> <xsl:value-of
> select="document('errors.xml')/Table/Message[@Code=ActualErrorCode]"/>
> 
> Even better would be to cache the errors in hashmap using 
> keys.(Note that
> the XSL processor is not required to use a hashmap, although 
> it's likely)
> 
> <xsl:key	name="translate-error"
> 		match="document('errors.xml')/Table/Message"
> 		use="@code"/>
> 
> Now you can use something like:
> 
> <xsl:value-of select="key('errors', ActualErrorCode)"/>
> 
> Regards,
> 
> // tt
> 
> > -----Original Message-----
> > From: Xavier Defrang [mailto:xavier@xxxxxxxxxxxx]
> > Sent: Thursday, September 27, 2001 4:50 PM
> > To: Mulburrytech's XSL Mailing List
> > Subject:  How to use an XML-based LUT with XSLT?
> > 
> > 
> > 
> > Hello folks,
> > 
> > I've written a XSL document to transform XML into XHTML (yes, 
> > that's a big
> > surprize!).  The document contains some error codes and I'd like to
> > transform these numerical codes into an actual human-readable 
> > message so I
> > built a small XML document as follow :
> > 
> > <?xml version="1.0" standalone="yes"?>
> > <Table>
> > 	<Message Code="...">User-friendly error message</Message>
> > 	...
> > </Table>
> > 
> > Now I'd like to change my XSLT so I could look-up into the Table to
> > substitute numerical error codes by text messages with 
> > something like :
> > 
> > <xsl:value-of select="/Table/Message[@Code=ActualErrorCode]"/> 
> > 
> > Now the question is how do I "link" this table to my input 
> > DOM so I can
> > reach the Message elements from within my XSLT?  Is there any 
> > possibility
> > to that with plain XSLT? (I don't want to use any engine-dependant
> > extensions)
> > 
> > Maybe should I make a <xsl:choose>-based template matching 
> > the elements
> > containing these codes?
> > 
> > Thanks in advance,
> > 
> > Xavier Defrang
> > Perceval R&D Team
> > xavier@xxxxxxxxxxxx
> > 
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> > 
> > 
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> > 
> 
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