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- To: frogs@xxxxxxxxxxx
- Subject: Re: [frogs] Adding docstring support to def-grace-function
- From: "Neil Puttock" <n.puttock@xxxxxxxxx>
- Date: Wed, 7 Jan 2009 21:17:14 +0000
- Cc: lily-devel <lilypond-devel@xxxxxxx>
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2009/1/7 Carl D. Sorensen <c_sorensen@xxxxxxx>:
> You can also paste the following in at the guile> prompt, which is obtained
> by typing
>
> guile
>
> in a terminal window:
>
> (define (test-opt-args arg1 arg2 . t-opt-args arg1 arg2 . rest)
> (display "arg1 ")(display arg1)(newline)
> (display "arg2 ")(display arg2)(newline)
> (display "rest ")(display rest)(newline))
> (test-opt-args 1 2 3 4 5 6 7 8 9)
>
>
> This will define and execute a procedure named test-opt-args that has two
> fixed arguments and the remainder are optional.
As Carl has shown here, the optional arguments are often named `rest';
you'll find a few interesting examples in lilypond by grepping for `.
rest'.
Regards,
Neil
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