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From: | Peter Bjuhr |
Subject: | Re: Function for note string to fraction? |
Date: | Mon, 19 May 2014 22:50:02 +0200 |
User-agent: | Mozilla/5.0 (X11; Linux i686; rv:24.0) Gecko/20100101 Thunderbird/24.5.0 |
On 2014-05-15 15:17, Peter Bjuhr wrote:
is there already a function that converts a string "4." to the fraction '3/8', or the other-way round? After some research I think I've found a way forward with this: In ' scm/define-markup-commands.scm' there's a function/procedure called 'parse-simple-duration', which is used to translate from '\note' to '\note-by-number'. In a similar way I could use that to create the arguments to 'ly:make-duration'. And from there it would be easy to get the moment with ' ly:duration->string'. This all leads to an additional question: Is it possible to include and use 'parse-simple-duration' in a local script (without copy and pasting it)? If it's not possible I will settle with using \note-by-number instead! For those of you which find it easier to read code than my ramblings, here is what I've got so far: #(define (note-to-moment notestr) (let ((parsed (parse-simple-duration notestr))) (ly:duration-length (ly:make-duration (car parsed) (cadr
parsed)))))
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