re_format(7) on OpenBSD
The text ac4e97e4cee3, as OpenBSD 2.5, OpenBSD 2.4, OpenBSD 2.3, OpenBSD 2.2 shipped it.
POSIX 1003.2 regular expressions
The text ac4e97e4cee3, as OpenBSD 2.5, OpenBSD 2.4, OpenBSD 2.3, OpenBSD 2.2 shipped it.
POSIX 1003.2 regular expressions