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

[David Kastrup]

Reinhold Kainhofer <address@hidden> writes:

> 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?

Your original code should work without modification now.

-- 
David Kastrup