Re: garbled output, error

[David Kastrup]

Urs Liska <address@hidden> writes:

> Am 27.06.2015 um 11:04 schrieb N. Andrew Walsh:
>> Well, I've now loaded this up on my laptop, and re-cloned the
>> openlilylib directory, and now the problem no longer appears. I have
>> other issues -- namely that my production box is running lilypond
>> 2.19.22, which I can't seem to install from ubuntu -- but those are minor.
>
> 2.19.22 isn't released yet AFAICS. Do you have a custom built LilyPond?
>
>> 
>> Urs, did you update something on the git tree, or was this simply a
>> problem on my side that I'll run into again when I get back home?
>
> It's not clear what you say. Do you have a laptop with something <
> 2.19.22 and a home pc with a custom build from the 2.19.22 line?
>
> If that's the case then probably you'll experience the problem at home
> again because the changes in LilyPond have been introduced there.
>
> I assume I'll have to change the implementation (and look for other
> parts where this might matter) and introduce a version switch so the
> code executed from openLilyLib depends on the LilyPond version.

Unfortunately, 2.19.22 has not yet been released so there is "2.19.22
before change" and "2.19.22 after change" rather than "2.19.22 at the
point of its release".

It might be more reliable to use something like

(catch 'wrong-number-of-args
  (lambda () (something bla))
  (lambda _ (something parser bla)))

which just tries the new calling convention and, failing that, reverts
to the old call.

-- 
David Kastrup