Hi Jan-Peter,
thank you very much. This example function was actually accessible for
me [other than a similar function in lalily, which is just that little
amount more complex ...].
I tweaked it to my needs as can be seen in the attachment.
It makes a decision depending on the presence of a -dexample option and
- if it isn't present it includes a 'standalone' stylesheet (for better
readability during development)
- if it is present it includes a stylesheet whose name is flexibly
defined by the function's argument.
Hey, my first working and usable Scheme function :-)
Best
Urs
Am 04.02.2013 20:01, schrieb Jan-Peter Voigt:
Hi Urs,
you can write a music-function that conditionally includes files.
I use a function to include a file, if it exists. The if statement can
of course also test for a option with ly:get-option.
Best, Jan-Peter
On 04.02.2013 16:48, Urs Liska wrote:
Hi list,
I don't know if I _could_ find this info myself, but I'm quite
puzzled about it and so I'd rather ask:
I would like to \include files depending on the presence (or absence)
of certain command-line options.
Basically it should do something like:
- if option A is present then \include A.ily
- if option B is present then \include B.ily
- if none of them is present then \include default.ily
Ideally this would be a function that I can define in a separate file
and only include this file in my main .ly file.
Background is: A, B and default are style sheets that style the score
according to their context (e.g. standalone score <--> part of a book
or draft <--> final mode).
While I know how to deal with this decision by writing both includes
in the file and comment out the one I don't need ATM, I would highly
prefer to be able to do this with a command line option, so I can run
a script on a potentially large number of files. (The only other
workaround I can think of now is to let the script actually rewrite
the .ly file before compiling it, but I think that's not really
elegant).
I'd be grateful about any hints or solutions.
Best
Urs
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\version "2.16.0"
includeOutputMode =
#(define-music-function (parser location type)(string?)
(cond
((ly:get-option 'example)
(ly:parser-include-string parser
(string-append "\\include \"layout/"
(string-append type ".ily\"\n"))))
(else (ly:parser-include-string parser "\\include \"layout/a4-standalone.ily\"\n"))
)
(make-music 'SequentialMusic 'void #t)
)
\includeOutputMode "one-system-example"
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