Jan-Peter Voigt <jp.vo...@gmx.de> writes:
> Hi folks,
>
> I just stumbled over a bug with \displayLilyMusic and
> scheme-engravers. The following fails in recent devel:
>
> %%%
>
> \version "2.19.55"
>
> \displayLilyMusic \new Staff \with {
> \consists #(lambda (context)
> (make-engraver))
> } \relative { bes'4 a c b }
>
> %%%
>
> ERROR: In procedure symbol->string:
> ERROR: Wrong type argument in position 1 (expecting symbol):
> #<procedure #f (context)>
>
> %%%
>
> Until 2.19.53 or 54 this didn't crash, but the output was not a
> serialization of the context-mod (\with), so I assume, someone is
> working on it :-)
>
> I will have a look into the internals after lunch.
I think you are understating the problem. \displayLilyMusic has nothing
to do with it.
This is a "how did this ever pass testing" kind of case [checking the
regtests].
The regtests don't use \with at all but only layout redefinitions.
This is a showstopper in case anybody was thinking of rolling a
developer release right now.
--
David Kastrup
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