Re: find (and friends) bug?

[Paul Eggert]

> Date: Mon, 4 Mar 2002 03:22:35 -0800 (PST)
> From: Tom Lord <address@hidden>
> 
> can you give some highlights about what has changed in regexp land?
> (Free web refs would be ideal, I can't afford a paper standard at
> the moment.)

You can read the POSIX spec online at:
http://www.UNIX-systems.org/version3/online.html

Registration is required, the terms are here:
http://www.opengroup.org/onlinepubs/terms.htm

Basically, some of the collating-element underbrush got cleaned out.
For example, in the old POSIX, [^[:alpha:]]+ was required to match
"aa" in a Danish locale, since "aa" is a collating element that is not
an alphabetic character.  The new POSIX does not require this: it
gives implementations more freedom to "do the right thing" (and thus
it can make life harder on application writers :-).