Re: Re: conditional formatting

[Dmytro O. Redchuk]

On Mon 04 Oct 2010, 23:11 Marten Visser wrote:
> Dmytro's suggestion looks more promising, though I haven't been able
> to generate code that does the job so far. When I code
> 
> ==================
> \new Devnull
> <<
>         \TablatureNotes
> >>
> ==================
> 
> I still get an empty tabStaff and two tabstaffs below it for both
> voices in the \TablatureNotes. Replacing "Devnull" by "TabStaff", I
> get one tabstaff with both voices combined. I guess Devnull is not a
> manner to suppress printing the staff.

Sorry, i've not tested this much.

Which lilypond version do you use? That sample was tested (a bit,-) with
2.13.35, latest development so far. Well.. this works with 2.12 too, ive tried
just now.

First of all -- i'm not sure that this is the best (or even smart at all) way
to do "this" (and i am still not sure that i understood what's needed,-)

Anyway, please take a look -- this example produces ChoirStaff with two staves
if makeFor equals 'choir and produces single staff with \lowerMelody if
makeFor equals anything else.

How far this from a required result?

%--------------8<-----------------------
makeFor = #'choir

#(define myContainer (if (eq? makeFor 'choir)
                         "ChoirStaff"
                         "Devnull"))

#(define upperStaff (if (eq? makeFor 'choir)
                        "Staff"
                        "Devnull"))

upperMelody = \relative c'' {
  c4 bes d c
}

lowerMelody = \relative c'' {
  a4 g bes a
}

\score {
  \new \myContainer <<
    \new \upperStaff <<
      \upperMelody
    >>
    \new Staff {
      \lowerMelody
    }
  >>
}
%--------------8<-----------------------

I'm just interesting .-)

Playing with lilypond gives me a lot of fun and some experience, which can be
used later, for my own needs.

Or, if this is more convenient for you, could you post a small example ---
what you've tried and it wasn't work as desired?

Thanks.

-- 
  Dmytro O. Redchuk
  Bug Squad

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