Werner LEMBERG <w...@gnu.org> writes:
>> \tempo does not have "optional arguments" but rather several quite
>> different forms of argument lists, and then some rather weird form
>> of numeric range echoed nowhere else in the syntax.
>
> BTW, could you suggest a better syntax for \tempo which looks
> similar to the current definition, but avoiding the problems?
The markup-only variant could just be
\tempoMarkup markup
The Midi variant could likely be
\tempo [optional markup] duration number-or-number-pair
This is a syntax that should work fine currently. A number-pair can be
entered as #'(50 . 56) or 50/56 currently. I don't fancy 50~56 just for
the sake of \tempo.
I am not proposing a current change since "supporting functions that can
be used to the left of an equals sign" is a change that I have scheduled
for implementation, and it _might_ offer itself for
\tempo [optional markup] duration = number-or-number-pair
syntax. This would, however, not relieve the necessity for a separate
markup-only function, and it would be a somewhat awkward use for the
feature since a standalone
\tempo [optional markup] duration
would not make independent sense.
--
David Kastrup
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