Re: Using strings and other types to return markup

[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.

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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