Gianmaria Lari writes:
> On Tue, 27 Nov 2018 at 12:12, David Kastrup wrote:
>>
>> in output and in its effect on the variable. Basically, $x and \x are
>> the same (apart from the characters allowed in and after x). The
>> logical thing would be to permit "Test" on its own but it appears
On Tue, 27 Nov 2018 at 12:12, David Kastrup wrote:
> Gianmaria Lari writes:
>
> > Probably these are very trivial things. Sorry to ask them but would like
> to
> > understand.
> >
> > If I write (1):
> >
> >
> > \version "2.19.82"
> > $(object->string (+ 3 2))
> >
> >
> > Lilypond is happy and
Thank you Jan, very clear.
g.
On Tue, 27 Nov 2018 at 11:48, Jan-Peter Voigt wrote:
> Hello,
>
> the $ sign has a special meaning of "instant scheme-expression". An
> instant scheme expression is evaluated instantly *and* the result is
> observed so that lilypond can decide what to do with it.
Gianmaria Lari writes:
> Probably these are very trivial things. Sorry to ask them but would like to
> understand.
>
> If I write (1):
>
>
> \version "2.19.82"
> $(object->string (+ 3 2))
>
>
> Lilypond is happy and compile to a pdf file showing "5".
>
> Even this simpler code works... (2)
>
>
Hello,
the $ sign has a special meaning of "instant scheme-expression". An
instant scheme expression is evaluated instantly *and* the result is
observed so that lilypond can decide what to do with it. When lily
receives something that can be treated as a markup from an instant
scheme expression
Probably these are very trivial things. Sorry to ask them but would like to
understand.
If I write (1):
\version "2.19.82"
$(object->string (+ 3 2))
Lilypond is happy and compile to a pdf file showing "5".
Even this simpler code works... (2)
\version "2.19.82"
$"Hello"
and generate a pdf
