On Fri, 2017-09-01 at 20:35 +0200, David Kastrup wrote: > Graham King <lilyp...@tremagi.org.uk> writes: > > > On Fri, 2017-09-01 at 19:06 +0200, David Kastrup wrote: > >> > >> I'd just try (equal? markupContents "") here. equal? can compare any > >> objects for "equality", and at least "" as input should compare equal > >> then. > >> > > thanks David. I'm getting "Missing or extra expression in (if (equal? > > markupContents ""))" > > Well, missing. You have a condition but no expression to be evaluated > depending on it. > Thanks again David. After a long struggle, I've got somewhere. The result is probably inelegant enough to cause some sucking of teeth among the congnoscenti, but it works for me:
( if ( equal? #{ \markup #markupContents #} #{ \markup { \concat { "" "" "" } } #} ) #{ <> #} (case whereMarkup ((system) #{ \mark #markupContents #}) ((staff) #{ <>^ #markupContents #}) (else #{ \mark \markup \color #red #markupContents #}) )) _______________________________________________ lilypond-user mailing list lilypond-user@gnu.org https://lists.gnu.org/mailman/listinfo/lilypond-user