Re: Parser error with self-defined predicate symbol-or-markup? in markup function

[Reinhold Kainhofer]

Am Mittwoch, 26. Januar 2011, um 20:00:31 schrieb David Kastrup:
> Reinhold Kainhofer <address@hidden> writes:
> > I'm defining my own predicate symbol-or-markup? for the argument of a
> > markup function.
[...]
> > but, as soon as I try to pass a markup, the parser complains that it
> > expects an SCM_IDENTIFIER or SCM_TOKEN:
> >     \markup \mytest "test" \bold "f"
> > 
> > markup-or-symbol.ly:15:21: Fehler: syntax error, unexpected STRING,
> > expecting SCM_IDENTIFIER or SCM_TOKEN
> > \markup \mytest "test
> >                      " \bold "f"
> 
> markup? is specially detected and implemented in the parser.  It is
> never actually called but rather used as a switch.
> 
> markup-or-symbol? isn't.  All predicates not recognized as markup? or
> markup-list? expect a Scheme expression that will then be checked for
> validity using the respective predicate.

Okay, so it is currently not possible to write a markup function that takes a 
markup or symbol (or any other scheme expression) as its argument?

Cheers,
Reinhold

-- 
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Reinhold Kainhofer, address@hidden, http://reinhold.kainhofer.com/
 * Financial & Actuarial Math., Vienna Univ. of Technology, Austria
 * http://www.fam.tuwien.ac.at/, DVR: 0005886
 * LilyPond, Music typesetting, http://www.lilypond.org