Re: How could I detect/prevent a file not found except

Thanks Martin

cheers
T

-----Original Message-----
From: Martin Honnen martin.honnen@xxxxxx
<xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>
Sent: Wednesday, 6 February 2019 2:36
To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
Subject: Re:  How could I detect/prevent a file not found exception in
document()?

On 05.02.2019 14:21, Trevor Nicholls trevor@xxxxxxxxxxxxxxxxxx wrote:

> A set of templates which are used to fill in the clickable text of a
> cross-reference are occasionally failing for me with a "file not found"
> exception. The processor we are using for this is Saxon but I'm hoping
> that there may be a way to code round the problem that is not
> processor-specific, so I am posting the relevant part of it here
> rather than on the Saxon list.
>
> The stylesheet containing these templates is currently XSL 1.0 because
> an extensive array of stylesheets include it, and some of them have to
> be XSL 1.0. But I could easily do a separate XSL 2.0 version if that
> helped avoid this issue.

In general Saxon 9 supports the function doc-available, like any other
processor supporting XSLT/XPath 2 and later so using e.g.


>        <!-- can't find the file/id, so need a bit of magic: use the
> cache document from the previous build -->
>
>        <xsl:otherwise>
>
>          <xsl:variable name="cachefile">
>
>            <xsl:call-template name="cache-filename">
>
>              <xsl:with-param name="pathname" select="$linkfile" />
>
>            </xsl:call-template>
>
>          </xsl:variable>
>
>          <xsl:variable name="cachedlink">
>
>            <!-- doc TWO -->

    <xsl:if test="doc-available($cachefile)">

>            <xsl:for-each select="document($cachefile,/)">

might help.

With Saxon 9.8 or 9.9 and XSLT 3 you would also be able to use
`xsl:try/catch"