Thanks both. I was sure I'd tried that as one of my variants, but clearly
not. I think if I had tried it, I was incorrectly calling the procedure
with a string without the # before it. FWIW I'd copied the syntax from the
(markup (number->string newval))))) in
http://lsr.di.unimi.it/LSR/Snippet?id=543 and Urs's explanation makes it
clear that this is a function and so has (), whereas my attempt isn't, and
so shouldn't.
--
Phil Holmes
----- Original Message -----
From: "Urs Liska" <[email protected]>
To: <[email protected]>
Sent: Wednesday, May 11, 2016 10:46 AM
Subject: Re: Using strings and other types to return markup
Am 11.05.2016 um 11:43 schrieb Jan-Peter Voigt:
Hi Phil,
you just need to remove the parens around 'theText'. Also inside
(markup ...) everything is interpreted as a parameter for the function
(macro or whatever) 'markup' and evaluated as a scheme-expression for
thet purpose.
To clarify that more:
(theText)
tries to invoke a procedure 'theText', while
theText
represents the variable as passed into the function as an argument.
HTH
Urs
HTH
Jan-Peter
#(define-markup-command (do-tilde layout props theText) (string?)
(interpret-markup layout props
(markup theText )
))
Am 11.05.2016 um 11:31 schrieb Phil Holmes:
I'm not top posting
I want to create a function in scheme that will take a string argument
something like "san~t" and return a markup which will place the tilde
above the n. I know how to create the markup using markup functions
like
combine and translate, but I want to make this easier by using a scheme
function. I'm struggling to work out how to take a string argument and
use it to return markup. My test function is:
#(define-markup-command (do-tilde layout props theText) (string?)
(interpret-markup layout props
(markup (theText) )
))
I call it with:
mel = \relative c'' { c4 }
lyr = \lyricmode { \markup { \do-tilde #"Testing" } }
<<
\new Voice = melody \mel
\new Lyrics \lyricsto melody \lyr
I get the error
In expression (theText):
LyricTest.ly:13:17: Wrong type to apply: "Testing"
Can anyone point out to me what I'm doing wrong (or how to do this
correctly?)
TIA
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