Re: sed patch for POSIX conformance with /[]/

[Paul Eggert]

"Paolo Bonzini" <address@hidden> writes:

> > For example, if there's a need to disable all GNU
> > sed extensions to POSIX, this could be done by adding a --posix-only
> > option, or perhaps a POSIX_ONLY environment variable.
> 
> Yes, I'll add --posix.
> 
> > I don't know of any precedent for this in other GNU utilities, but
> > I'll CC: this to bug-gnu-utils to see if anyone else has a comment on
> > the environment variable or option name.
> 
> gawk has --posix IIRC.

But the GNU coding standards suggest "--posix" as an alias for
POSIXLY_CORRECT.  I wouldn't use "--posix" to mean something different.

To contribute to the confusion, gawk historically also has misused
POSIXLY_CORRECT and --posix to mean "disable all extensions to POSIX,
even the upward-compatible extensions".  I have sent in a bug report
about this.