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Re: \offset argument order
From: |
David Kastrup |
Subject: |
Re: \offset argument order |
Date: |
Fri, 23 Mar 2018 13:20:56 +0100 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/26.0.50 (gnu/linux) |
Malte Meyn <address@hidden> writes:
> Am 23.03.2018 um 12:47 schrieb David Kastrup:
>> Malte Meyn <address@hidden> writes:
>>
>>> Hi list,
>>>
>>> is there a reason for the special order of \offset arguments? I would prefer
>>> \offset Beam positions #'(2 . 3)
>>> or—even better because there would be no confusion with \override—
>>> \offset Beam.positions #'(2 . 3)
>>> instead of the current
>>> \offset positions #'(2 . 3) Beam
>>
>> \offset can be applied to music expressions. And something like
>>
>> \offset \offset c' positions #'(2 . 3) Y-offset #'3
>>
>> would be a lot less pleasant to read than
>>
>> \offset Y-offset #'3 \offset positions #'(2 . 3) c'
>>
>> For that reason, \tweak-like expressions generally take the music
>> expression to be tweaked as their last argument. That makes nesting
>> them reasonably clean.
>>
>
> Thanks for explanation! After reading that and trying some more stuff
> I learned that
> \offset Beam.positions #'(2 . 3)
> works also but it’s a \tweak and
> \offset positions #'(2 . 3) Beam
> is an \override that can be prefixed with a \once.
>
> So
> \offset Beam.positions #'(2 . 3)
> and
> \single \offset positions #'(2 . 3) Beam
> should be the same?
Pretty much so I guess. Seems unneeded here, but for stuff like \omit,
there is no substitute form for directed tweaks like \single \omit Flag
since you don't specify a property name at all and thus have no place
for a grob name without using \single .
--
David Kastrup