Re: music-to-markup

[Urs Liska]

Am 23.07.2014 18:52, schrieb David Kastrup:
> Urs Liska <address@hidden> writes:
>
> > is it possible to take a music expression and print out its literal
> > input?
>
> Sort of.
>
> > In other words: Could I write a function "\example" that takes a music
> > expression as an argument and that first outputs the input code as
> > text and then as a score?
> >
> > So that
> >
> > \example {
> >    \relative c' {
> >      c8 d e
> >    }
> > }
>
> Well, if you write
>
> example =
> #(make-scheme-function (parser location music) (ly:music)
> ...
> then (ly:input-both-locations location)
> will return
>
> -- Function: ly:input-both-locations sip
>       Return input location in SIP as ‘(file-name first-line first-column
>       last-line last-column)’.
>
> So you'll be able to take the input location information and read the
> corresponding source from the file.

So you mean I should parse this (example result):
(/tmp/frescobaldi-4Orug3/tmp8Y5V5X/document.ly 8 0 16 1)

open the file (separately) from Scheme and read the given range?
You're right, that looks somewhat awkward but whould give me a start.

Thanks
Urs

> It is sort of annoying that LilyPond does not offer something already
> doing that since it _does_ have the information available (as you can
> see when it produces error messages).