Am Thu, 17 Nov 2016 13:07:22 +0100 schrieb Hans Hagen: >> Simply using \let doesn't work when you want locally a different >> expansion behaviour: >> >> ! error: (font expansion): font has been expanded with different >> stretch limit. >> >> (with pdflatex + lualatex), that's imho the reason why microtype >> copies the fonts. > > in fact that is also the case with pdftex: afaik expansion and > protrusion values are global and once a font is used they get frozen
Yes, exactly. > > in luatex (at least the lua font loader) one can set the expansion at > definition time (which is more natural but not possible in pdftex) Yes, but I understand that -- if possible -- microtype prefers code that works in pdftex *and* luatex. >> The question is if microtype can easily retrieve the current font >> features and if it will slow down the code much if it has to >> redefine fonts again and again. > that's a matter of implementation Yes, the maintainer of microtype has been informed about the problem and can now look for a solution ... -- Ulrike Fischer http://www.troubleshooting-tex.de/ ___________________________________________________________________________________ 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 ___________________________________________________________________________________
