, Jamie Howard <howardjp@wam.umd.edu>
From: Hannah Schroeter <uk1o@rz.uni-karlsruhe.de>
List: tech-userlevel
Date: 07/05/1999 11:47:54
Hello!
On Sat, Jul 03, 1999 at 05:00:41PM -0400, Todd Vierling wrote:
> [...]
> Hm. Adding ^ and $ should work, provided you don't specify either
> REG_NOTBOL or REG_NOTEOL. (I assume that (foo) above, including the parens,
> is the RE. With the parens, it depends whether you're using standard REs or
> extended REs. :)
But be careful about adding ^ and $ to something like (extended syntax)
foo|bar. ^foo|bar$ is wrong, and ^(foo|bar)$ works HERE but not always,
as when the original regex uses \number backreferences, you must patch them
(increase by one), and you're hosed if \9 is already used.
> [...]
Regards, Hannah.