Your message dated Mon, 17 Aug 2015 23:51:10 -0700 with message-id <55D2D5DE.50100@cs.ucla.edu> and subject line Re: 24.4; (match-end 0) doesn't always return nil when previous string-match fails has caused the debbugs.gnu.org bug report #21279, regarding 24.4; (match-end 0) doesn't always return nil when previous string-match fails to be marked as done. (If you believe you have received this mail in error, please contact help-debbugs@gnu.org.) -- 21279: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=21279 GNU Bug Tracking System Contact help-debbugs@gnu.org with problems