Thank you, Taco, that is exactly what I need!
Jelle
On Fri, Sep 21, 2018 at 10:44 AM Taco Hoekwater <t...@elvenkind.com> wrote:
>
>
>
> > On 21 Sep 2018, at 10:30, Henri Menke <henrime...@gmail.com> wrote:
> >
> > On 21/09/18 20:09, J Huisman wrote:
> >> Hi all,
> >>
> >> I'm getting back to using ConTeXt after a couple of years, so I might
> >> be missing something obvious...
> >>
> >> I would like to add an I.D. code to the name of my outputfile, but
> >> since this will be used in an automated environment I would like to
> >> load the ID-code from the source file.
> >>
> >> MWE: test.tex
> >>
> >> \starttext
> >>
> >> \def\idcode{something}
> >>
> >> Some text, whatever.
> >>
> >> \stoptext
> >>
> >> If I typeset with: context text --result=test-idcode the result is
> >> obviously "test-idcode.pdf", but I want to get a file name:
> >> "test-something.pdf"
> >> Is this possible?
> >
> > Once you enter TeX, the output file has been opened. The very concept
> > of a filesystem forbids you to change the filehandle while writing. So
> > no, it is not possible easily.
>
> But it can be done sneakily …
>
>
> % start demo
> \enabledirectives[system.callbacks.permitoverloads]
> % previous line allows redefinition of ‘wrapup_run’
>
> % to keep the code short, I use a direct definition of
> % \idcode and \ctxlua. Nicer would be to store the desired
> % output name in a lua variable and replace the
> % \ctxlua with \startluacode … \stopluacode with
> % a string.format inside it.
>
> \def\idcode{something}
>
> \ctxlua{callbacks.register('wrapup_run', function()
> os.execute("cp \jobname.pdf doc-\idcode.pdf")
> end)}
>
> \starttext
> Hello from \idcode
> \stoptext
> % stop demo
>
> Taco
>
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