On Wed, Dec 11, 2019 at 12:10 AM Hans Hagen <j.ha...@xs4all.nl> wrote:
> On 12/11/2019 12:03 AM, luigi scarso wrote: > > > > > > On Tue, Dec 10, 2019 at 9:27 PM Henri Menke <henrime...@gmail.com > > <mailto:henrime...@gmail.com>> wrote: > > > > Dear devs, > > > > The example below crashes LuaTeX with a segmentation fault. It is > > reproducible > > with LuaTeX 1.10.1 7143 and LuaTeX 1.11.2 7226. To this end I built > > 7226 from > > source with --debugopt to get a backtrace, which can be found below > > as well. > > > > Cheers, Henri > > > > --- > > > > \directlua{token.set_macro(-1, "foo","\string\\,")} > > \show\foo > > \foo > > \bye > > > > > > I guess that we have to check if catcodetable -1 is already defined... > i already sent you a patch, probbaly also ok for trunk > yes, seen > but one needs to be careful as fo rinstance \string\foo is seen as > <formfeed>oo so often one also needs to escape properly > I always start with [==[ ... ]==] ie \directlua{token.set_macro(-1, [==[foo]==],[==[\string\\,]==])} gdb reports this [==[\string\\,]==] string as "\\\\," which is an array of char of length 3 ie {'\\','\\',','} With \directlua{token.set_macro(-1, [==[foo]==],"\string\\,")} gdb reports "\\," ie {'\\','\,'} I always check which one is the correct one... -- luigi
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