Ma Lin <malin...@163.com> added the comment:
You can `#define VERBOSE` in file `_sre.c`, it will print the engine's actual actions: |02FAC684|02FC7402|MARK 0 ... |02FAC6BC|02FC7401|MARK 1 In my computer, 02FC7400 points to "ab", 02FC7401 points 'b' in "ab", 02FC7402 points to the end of "ab". This capture group, begin at 02FC7402, end at 02FC7401. `begin > end` makes it return an empty string. This seems a bug, the begin should at 02FC7400. ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue35859> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
