problem with CSH_NULL_GLOB

problem with CSH_NULL_GLOB

[Maciej Kalisiak]

When I "setopt CSH_NULL_GLOB" and do "ls *.cc *.c" in my home directory, it
lists all the files there (i.e. none of the GLOBs matched anything and they
have been both removed without error).  I was expecting an error, or at the
very least nothing to be listed.  Do I misunderstand this option or is there
something wrong?

-- 
Maciej Kalisiak		mac@dgp.toronto.edu	www.dgp.toronto.edu/~mac

Re: problem with CSH_NULL_GLOB

[Geoff Wing]

Maciej Kalisiak <mac@cs.toronto.edu> typed:
:When I "setopt CSH_NULL_GLOB" and do "ls *.cc *.c" in my home directory, it
:lists all the files there (i.e. none of the GLOBs matched anything and they
:have been both removed without error).  I was expecting an error, or at the
:very least nothing to be listed.  Do I misunderstand this option or is there
:something wrong?

It looks like a bug in zsh.  I think you may have NULL_GLOB also set - if
so you will need to unsetopt it until you have a fixed zsh.  You also
didn't say which version - though I can reproduce this with 3.0.8 and a
recent development version.

% mkdir foo
% zsh -f
% setopt CSH_NULL_GLOB
% cd foo
% ls *.cc *.c
zsh: no match
% exit
% zsh -f
% setopt cshnullglob nullglob
% cd foo
% ls *.cc *.c
%

"CSH_NULL_GLOB <C>
	If  a  pattern  for  filename  generation  has   no
	matches, delete the pattern from the argument list;
	do not report an error unless all the patterns in a
	command have no matches.  Overrides NULL_GLOB."

Regards,
-- 
Geoff Wing : <gcw@pobox.com>
Rxvt Stuff : <gcw@rxvt.org>
Zsh Stuff  : <gcw@zsh.org>

Re: problem with CSH_NULL_GLOB

[Bart Schaefer]

On Nov 24,  2:06am, Geoff Wing wrote:
} Subject: Re: problem with CSH_NULL_GLOB
}
} Maciej Kalisiak <mac@cs.toronto.edu> typed:
} :When I "setopt CSH_NULL_GLOB" and do "ls *.cc *.c" in my home directory,
} :it lists all the files there [...]
} 
} It looks like a bug in zsh.  I think you may have NULL_GLOB also set [...]
} 
} "CSH_NULL_GLOB <C>
} 	If  a  pattern  for  filename  generation  has   no
} 	matches, delete the pattern from the argument list;
} 	do not report an error unless all the patterns in a
} 	command have no matches.  Overrides NULL_GLOB."

Hrm.  As nearly as I can tell, this documentation became wrong when the
(N) glob qualifier was introduced.  If CSH_NULL_GLOB overrides (N), all
sorts of bad things happen, so it doesn't.  I just tried zsh-2.4, and
NULL_GLOB still takes effect even in combination with CSH_NULL_GLOB in
that version, too.  I think it should read "Overrides NOMATCH."

-- 
Bart Schaefer                                 Brass Lantern Enterprises
http://www.well.com/user/barts              http://www.brasslantern.com

Zsh: http://www.zsh.org | PHPerl Project: http://phperl.sourceforge.net