From trineo at gmail.com  Fri May  1 23:00:43 2009
From: trineo at gmail.com (Neon Ngo)
Date: Fri, 1 May 2009 16:00:43 -0400
Subject: [PATCH]$name[selector] breaks rightness of empty range with omitted 
	second argument in range
Message-ID: <30db90810905011300u2b8ac682k5528fa19bb8ef3d4@mail.gmail.com>

I agree, this valid behavior ($argv[1-]) is NOW broken with the sm
(symmetry) option

I believe the previous patch should be removed or fix to allow doing
$argv[1-].

tcsh maintainer(s), what is the plan for resolving this issue? Or do you all
still think that is an invalid scenario?

See my posting in the tcsh-bugs mailing list:
Subscript out of range error on existing working
script<http://mx.gw.com/pipermail/tcsh-bugs/2009-April/000620.html>
http://mx.gw.com/pipermail/tcsh-bugs/2009-April/000621.html

I have a workaround for my script by doing:
  set x ""
  if ($#argv >= 1) then
    set x $argv[1-]
  endif

vs my one line in the past (which will set x to "" when run without args)
 set x $argv[1-]

See also this thread on CentOS: 0003543: "argv: Subscript out of range."
http://bugs.centos.org/view.php?id=3543

Regards,

Neon

On Wed, Apr 15, 2009 at 5:00 AM, <tcsh-request at mx.gw.com> wrote:

> Date: Tue, 14 Apr 2009 07:38:44 -0400 (EDT)
> From: Vitezslav Crhonek <vcrhonek at redhat.com>
> Subject: [PATCH]$name[selector] breaks rightness of empty range with
>        omitted second argument in range
> Hi,
>
> This is related to "[PATCH]$name[selector]:it should fail when any number
> of 'selector' is out of range" thread discussed here roughly a year ago
> (see http://mx.gw.com/pipermail/tcsh/2008-February/003923.html).
>
> The patch breaks $name[selector-] functionality (the second argument is
> omitted).
>
> This situation is described in man page: "It is not an error for a range
> to be empty if the second argument is omitted or in range.". But with the
> patch the tcsh produces "argv: Subscript out of range." in this situation.
>
> Try:
> #!/bin/tcsh -f
> echo $argv[1-]
>
> The patch should be reverted or fixed (if you believe that $name[selector]
> should fail when any number of selector if out of range - I'm not sure,
> because
> man page doesn't state it).
>
> The patch is part of tarball since tcsh-6.16.00.
>
> Best regards,
> Vitezslav Crhonek
>