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http://bugs.exim.org/show_bug.cgi?id=891 --- Comment #3 from Sheri <[email protected]> 2009-09-23 20:32:41 --- Alan Lehotsky wrote: > > >From http://arglist.com/regex/regex7.html, purporting to be the man pages > for Spencer's BSD 4.4 regex. > > > 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 systems. > LOL. The last line of the cited reference (under "Bugs") says, "The syntax for word boundaries is incredibly ugly." Regards, Sheri -- Configure bugmail: http://bugs.exim.org/userprefs.cgi?tab=email -- ## List details at http://lists.exim.org/mailman/listinfo/pcre-dev
