Re: [Xsltforms-support] applying a stylesheet in an instance to data in an instance
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Re: [Xsltforms-support] applying a stylesheet in an instance to data in an instance
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From: C. M. Sperberg-M. <cm...@bl...> - 2012-07-15 20:14:36
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On Jul 12, 2012, at 3:15 PM, C. M. Sperberg-McQueen wrote:
> In a form I'm working on, I'd like to apply a stylesheet located in a
> document instance (instance('filter') to an input document located in
> another instance (instance('userdoc')).
For others interested in this topic, I should record that this is in fact
possible and a simple extension function does the job.
A number of test cases that demonstrate the use of transform() and
an extension function for instance-based XSLT transforms can be
found at
http://blackmesatech.com/2012/07/testcase/transform/index.xml
Michael Sperberg-McQueen
> ...
> So I wrote an extension function that looks like this:
>
> function bmt_applyxslt_ns_s(nsXML, sXSLT) {
> if (arguments.length !== 2) {
> throw XsltForms_xpathFunctionExceptions.transformInvalidArgumentsNumber;
> }
> return nsXML.length === 0? "" : XsltForms_browser.transformText(XsltForms_browser.saveXML(nsXML[0]), sXSLT, true);
> }
>
> This is almost verbatim the same as the source code for transform(),
> except for the argument names and 'true' instead of 'false' in the
> third argument.
This code appears to work correctly, given a good stylesheet.
> I register the function with XSLTforms in the usual way.
>
> <xf:setvalue
> ref="instance('userout')/self::data"
> value="bmt:s_applyxslt_ns_s(instance('userdoc'), serialize(instance('filter')))"/>
>
> The form loads as expected and the function seems to be called
> without incident and without error messages (and alert messages
> confirm that the arguments look pretty much as I expect them to look).
> But the result is consistently not the output I expect from the stylesheet,
> but a document which reads in its entirety:
>
> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml">
> <head><title></title></head>
> <body>
> <pre></pre>
> </body>
> </html>
>
> Anyone have a clue? Anyone have a better (or just different) way to go about
> this?
This appears to be Safari's way of signaling an error of some kind in the
execution of the XSLT transform.
--
****************************************************************
* C. M. Sperberg-McQueen, Black Mesa Technologies LLC
* http://www.blackmesatech.com
* http://cmsmcq.com/mib
* http://balisage.net
****************************************************************
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