Hi Hans,
in the old loader, defining a feature containing mixed ligature / substitution causes a crash. Here’s an example:
\enabletrackers [otf.loading] \startluacode fonts.handlers.otf.addfeature ("dunno", { { type = "substitution", data = { [0x0022] = 0x201D }, prepend = true, }, { type = "ligature", data = { [0x2013] = {0x002D, 0x002D} }, prepend = true, }, }) fonts.handlers.otf.features.register { name = "dunno", description = "bug demo", } \stopluacode
\definefontfeature [myfeat] [default] [dunno=yes,liga=yes,mode=node]
\definefont [somefont] [file:cmunrm.otf*myfeat] \starttext \somefont foo bar " baz \stoptext
This crashes in font-otn on account of a number being indexed. This used to work -- anything that can be done about it?
Best, Philipp