On 2020/01/26 10:45:11, thomasmorley651 wrote: > I don't see any difference to checking for a number either. Thus "distinguish" > feels strange.
There was a time when music function predicates determined syntactic decisions based on what function they pointed to rather than what they evaluated to. So people were confused why their user-defined functions, say, number-or-string? , did not admit either numbers or strings syntactically. ly:dimension? never made it to special status in the parser. In olden times that would mean that when using it as a music function argument, the respective number could not be entered as a plain number but would always have to be preceded with # . This kind of predicate aliasing serves almost no point any more (markup? and markup-list? in markups are still treated in that manner, though). > Ofcourse it's a predicate, thus > LGTM > > Thanks! You can't be motivated to go through the other doc-strings listed in IR > 4. Scheme functions ? > :) https://codereview.appspot.com/547470049/
