On 05.06.16 23:09, David Carlisle wrote: > \pdfmatch{a}{b} > \pdflastmatch0 > \bye On Mac OS X (x86_64-darwin), there is no crash, but the second number in the output (eg. the 8 in "0 8-¿") randomly changes on every run (seems to be between 0 and 15). I haven't tested with the patch. Best, -- Robert