Re: encode-for-uri() and filenames?

On 22.11.2020 17:34, David Birnbaum wrote:
> Dear XProc Dev,
>
> I've been struggling with filenames that are not compatible with URIs,
> and attempting to work around the limitation by using encode-for-uri()
> when I save the file. I described the general problem on the
> eXist-open mailing list, so I won't repeat it here, but my issue has
> an XProc aspect, and may even be an XProc—rather than broader
> filename—issue, and I would be grateful if someone on this list to
> help clarify that aspect of it for me.
>
> Here is a test XProc file, which I run under MorganaXProc-IIIse
> 0.9.4.8-beta:
>
>     <?xml version="1.0" encoding="UTF-8"?>
>     <p:declare-step xmlns:p="http://www.w3.org/ns/xproc
>     <http://www.w3.org/ns/xproc>"
>     xmlns:c="http://www.w3.org/ns/xproc-step
>     <http://www.w3.org/ns/xproc-step>"
>       version="3.0">
>       <p:input port="source">
>         <p:inline>
>           <doc>Hello world!</doc>
>         </p:inline>
>       </p:input>
>       <p:output port="result"/>
>       <p:variable name="output-filename"
>     select="encode-for-uri('test-1a%7%.xml')"/>
>       <p:identity message="{$output-filename}"/>
>       <p:store href="{$output-filename}"/>
>       <p:identity/>
>     </p:declare-step>
>
>
> Because the percent signs as they are used in the filename are
> incompatible with URI encoding, I expect them to be percent-encoded
> themselves, with the modified filename echoed to stderr (in the
> <p:identity> step) and used to save the test file (in the <p:store>
> step). What happens instead is that the percent encoded value is
> written, as expected, to stderr:
>
>     test-1a%257%25.xml
>
>
> but the file is saved to the local filesystem as if encode-for-uri()
> had not been applied, that is, as:
>
>     test-1a%7%.xml
>
>

I don't have an explanation for that, perhaps ask Achim by raising an
issue on Morgana on Sourceforge.

It would also be interesting to see what

   <p:identity><p:with-input pipe="result-uri@store-step"/></p:identity>

outputs (where you name the `p:store name="store-step"`)