Hey everyone!
I'm hoping one of the Scheme gods on the list can tell me what I'm doing
wrong here. I'm trying to create a markup function that will draw harp
pedal diagrams. To do that, I need a function that takes 7 parameters. My
function works fine as long as there are only 3 parameters - as soon as I
add the fourth, everything blows up, with the following error:
programming error: no parser tag defined for this markup signature
continuing, cross fingers
(#<procedure baseHarpPedal-markup (layout props dpedal cpedal bpedal
epedal)> . scheme0-scheme1-scheme2-scheme3)
Here's what I've got:
\version "2.11.34"
#(define (pedalFlat location)
(string-append location " -0.75 moveto " location " -1.75 lineto "))
#(define (pedalNatural location)
(string-append location " -1.75 moveto " location " -3.25 lineto "))
#(define (pedalSharp location)
(string-append location " -3.25 moveto " location " -4.25 lineto "))
% This block works
#(define-markup-command (baseHarpPedal layout props dpedal cpedal bpedal)
(integer? integer? integer?)
(interpret-markup layout props
(markup
(#:postscript
(string-append "2 setlinecap 0 0 moveto 0 -5 lineto -5.25
-2.50 moveto 6.75 -2.5 lineto stroke 2 setlinecap 0.5 setlinewidth "
(cond ((= dpedal 1) (pedalFlat "-4.5"))
((= dpedal
-1) (pedalSharp "-4.5"))
(else
(pedalNatural "-4.5"))
)
(cond ((= cpedal 1) (pedalFlat "-3"))
((= cpedal
-1) (pedalSharp "-3"))
(else
(pedalNatural "-3"))
)
(cond ((= bpedal 1) (pedalFlat "-1.5"))
((= bpedal
-1) (pedalSharp "-1.5"))
(else
(pedalNatural "-1.5"))
)
"stroke" )))))
% This block doesn't
%{
#(define-markup-command (baseHarpPedal layout props dpedal cpedal bpedal
epedal) (integer? integer? integer? integer?)
(interpret-markup layout props
(markup
(#:postscript
(string-append "2 setlinecap 0 0 moveto 0 -5 lineto -5.25
-2.50 moveto 6.75 -2.5 lineto stroke 2 setlinecap 0.5 setlinewidth "
(cond ((= dpedal 1) (pedalFlat "-4.5"))
((= dpedal
-1) (pedalSharp "-4.5"))
(else
(pedalNatural "-4.5"))
)
(cond ((= cpedal 1) (pedalFlat "-3"))
((= cpedal
-1) (pedalSharp "-3"))
(else
(pedalNatural "-3"))
)
(cond ((= bpedal 1) (pedalFlat "-1.5"))
((= bpedal
-1) (pedalSharp "-1.5"))
(else
(pedalNatural "-1.5"))
)
(cond ((= epedal 1) (pedalFlat "1.5"))
((= epedal
-1) (pedalSharp "1.5"))
(else
(pedalNatural "1.5"))
)
"stroke" )))))
%}
\score
{
% This line works
c''1 _\markup { \baseHarpPedal #0 #1 #-1 }
% This line doesn't
% c''1 _\markup { \baseHarpPedal #0 #1 #-1 #0 }
}
Thanks!
--Steven
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