Hi,
I have some troubles with understanding metafun's macro mechanism. Given this MWE: \starttext \startMPpage vardef Test (expr ab,cd)= %numeric ab; %numeric cd; draw unitsquare scaled 10 xshifted ab; draw unitsquare scaled 10 yshifted cd; enddef; Test (50,100); \stopMPpage \stoptext Uncommenting the two declarations makes me run intro a silent error. I was lucky enough yesterday to get an explicit error message with a more complex macro. It made me figure out where my problems came from. So here are my two questions: - Why shouldn't we tell metafun if expr is a path, a pair or so on? - Would it be possible to issue an error message each time this wrong declaration is made? Thanks, Damien Thiriet ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : http://contextgarden.net ___________________________________________________________________________________