> is there a way to check the validity of a .ly file?
> I am thinking of a syntax check – so basically if the parser/lexer can
> read it. It should (a) be quick and (b) not produce any output (could be
> deleted as a last resort).
> Is there something in python-ly that does that? It looks like the
> Frescobaldi auto-engraving only runs if the input is valid.
> I guess to check everything, I would have to run lilypond on it and see
> if there are any warnings or errors. But I am willing to have less
> coverage if I can get the result faster.
> Thanks in advance for any hints.
You could just turn all of LilyPond's processing hooks for various
syntactic elements into do-nothings in your own init file and then read
the various inputs. That should be rather fast.