2016-01-05 17:15 GMT+01:00 Abraham Lee <[email protected]>:
> Jason,
>
> On Tuesday, January 5, 2016, Jason Silver <[email protected]>
> wrote:
>>
>> I wonder if someone would explain the purpose of the pound signs when
>> indicating measurements?
>>
>> For example, this seems to work:
>>
>> system-system-spacing #'padding = .8
>>
>>
>> But I often see examples with # marks like:
>>
>> system-system-spacing #'padding = #2
>
>
> The later form (with the #) was how it _used_ to be done, as a Scheme
> requirement, but our awesome developers
David Kastrup
> have been able to eliminate the
> requirement of prefixing numbers using # in recent development versions.
{
\override Staff.Clef.font-size = .5
R1
}
still returns an error, as well as
\markup \fontsize 5 "xy"
So there are still limitations.
> Both, however, remain perfectly valid input methods for back-ward
> compatibility. Other kinds of values will likely still need # to work
> properly.
>
> HTH,
> Abraham
In general, whenever you are in LilypPond-syntax and you see/write a
`#' then the parser knows a guile-expression follows and will act
accordingly.
Cheers,
Harm
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