Re: [xsl] How to report errors to stdout from xslt?

["G. Ken Holman" <gkholman@xxxxxxxxxxxxxxxxxxxx>]

At 2004-07-25 08:51 -0400, Don McClimans wrote:
> What I would like to do in my xslt script is generate an error message

Such communication from the stylesheet to the operator is done using 
<xsl:message> optionally with a terminate="yes" attribute to halt processing.

> to stdout,

Where the message goes is up to the processor, there is no control from the 
stylesheet.

> and then return an error code from the xslt processor,

The error code returned us up to the processor, there is no control from 
the stylesheet.

When using terminate="yes" the end XML result is undefined, but given you 
are producing text files and not XML files, you cannot rely on downstream 
processes choking on the input file not being well-formed.  Hopefully the 
processor you choose will return a non-zero result in such a case.

Check your choice of processors for their handling of <xsl:message> to get 
the kind of facilities you can trigger on ... all I've been able to rely on 
is a non-zero result with terminate="yes" ... that allows one to use 
<xsl:message> for non-fatal error reporting and still get an error return 
of zero.

I hope this helps.

.................... Ken

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