On Tue, 2016-01-19 at 16:26 +0100, Simon Albrecht wrote: > On 19.01.2016 16:20, David Sumbler wrote: > > Is there a way of displaying the current value of particular variables > > and parameters during Lilypond compilation? > > Of course, e.g. with > #(format "Variable ‘foo’ currently has the value ~a\n" foo) > where foo is the variable, ~a references the next argument after the > string and \n outputs a newline. > You should be able to insert this everywhere.
Trying this with a variable I have set myself, I find that within a music expression it generates an error, and outside it produces nothing at all. On Tue, 19 Jan 2016 16:27:51 +0100, Urs Liska wrote: > Of course. For example: > > var = "three" > > #(display var) > #(newline) > > #(ly:message var) > > varList = #'(one two three) > #(ly:message (format "~a" varList)) > > #(display varLIst) > #(newline) I found that the first, i.e. #(display var), works both within and outside a music expression - thanks. The other forms I found did not work well, producing a "Wrong type argument in position 1 (expecting string)" message. Also both varList forms only report the first item. I am obviously doing something wrong, but I can't imagine what. What I should really like to be able to do is to display the current value of a variable such as Score.MetronomeMark.X-offset within a music expression, but I can't seem to achieve this even with the #(display var) form - I suspect that the variable has to be expressed in a different format. Can it be done? David _______________________________________________ lilypond-user mailing list lilypond-user@gnu.org https://lists.gnu.org/mailman/listinfo/lilypond-user
