On Sun, 4 Jul 1999, Archie Cobbs wrote: > There are two special cases- of bracket expressions: the > bracket expressions `[[:<:]]' and `[[:>:]]' match the null > string at the beginning and end of a word respectively. A > word is defined as a sequence of word characters which is > neither preceded nor followed by word characters. A word > character is an alnum character (as defined by ctype(3)) > or an underscore. This is an extension, compatible with > but not specified by POSIX 1003.2, and should be used with > caution in software intended to be portable to other sys- > tems. > > Perhaps this will help with -w?
Yes, I received a patch from Simon Burge which implements this. It also beats using [^A-Za-z] and [A-Za-z$] as I was and GNU grep does. I am still having trouble with -x though. It turns out that even if I specify a commandline with a pattern of the form "^pattern$", it fails. If I specify "^pattern" it works. If I specify "pattern$" it does not. I have yet to find a case where my version will sucessfully match when a $ is at the end. Has anyone encountered anything like this before? Jamie To Unsubscribe: send mail to majord...@freebsd.org with "unsubscribe freebsd-hackers" in the body of the message
