Urs Liska <u...@openlilylib.org> writes: > Hi, > > I'm hitting a wall with Scheme once more. > I need to create wrapper functions around (format) and other functions > that need a variable number of arguments. > > I know that with > > #(define (my-proc fmt . vals) > > "vals" will be an arbitrary number of arguments that will be wrapped in > a list, and I know how to access the individual items or this list from > within the function. But what I don't understand is how to pass exactly > the original arguments (*not* packed in a list) to another function in > the body: > > %%%%%%%%%%%%%%%%%%%%%%% > > \version "2.19.35" > > #(define (wrapper fmt . vals) > (ly:message (format fmt vals))) > > #(wrapper "This is the ~a format string\n" "listified") > %#(wrapper "This is the ~a and ~a format string\n" "listified" "broken") > > %%%%%%%%%%%%%%%%%%%%%%% > > In this code "format" receives "fmt" (the format strings) and "vals" - > the *list* of arguments. > How should I modify this so "format" doesn't parenthesize the output and > also works with more than one argument and placeholder in the format string?
(apply format fmt vals) -- David Kastrup _______________________________________________ lilypond-user mailing list lilypond-user@gnu.org https://lists.gnu.org/mailman/listinfo/lilypond-user
