* Bicknell, Frank ([EMAIL PROTECTED]) [21 Jul 2001 08:12]:
[...]
> Using Getopt::Long, it's possible to watch for negated options:
> -nostuff ... and it's possible to alias options "stuff|such" allows
> -stuff to be the same as -such.
[...]
> $ stuff -nosuch
> Using Perl Version 5.00404
> Unknown option: nosuch
> Use of uninitialized value at stuff line 6.
> Stuff: <>
> $
> Anyone seen this before?
(a) You really should be using --nosuch rather than -nosuch.
Getopt::Long is just being smart and noting that there aren't any short
opts.
(b) It works fine with perl 5.6 and Getopt::Long 2.25 (do the following
to determine what version you have:)
perl -MGetopt::Long -l -e'print $Getopt::Long::VERSION'
(c) You are doing the right thing.
Doing some research yields:
<http://search.cpan.org/doc/JV/Getopt-Long-2.25/CHANGES>
# Changes in version 2.22
# -----------------------
#
# * Fixes a bug in the combination of aliases and negation.
#
# Old: "foo|bar!" allowed negation on foo, but not on bar.
# New: "foo|bar!" allows negation on foo and bar.
#
# Caveat: "foo|f!", with bundling, issues the warning that negation on
# a short option is ignored. To obtain the desired behaviour, use
#
# "foo!" => \$opt_foo, "f" => \$opt_foo
# or
# "foo|f" => \$opt_foo, "nofoo" => sub { $opt_foo = 0 }
#
# Remember that this is _only_ required when bundling is in effect.
So it was a bug, and is now fixed. You may want to upgrade your Perl
(the newer Getopt::Long is standard in 5.6.1) or just your Getopt::Long
(using CPAN; 2.24 seems to only need Perl 5.4 or later).
So, all you need is version 2.22 or later (current 2.25).
cheers,
--
iain. <http://eh.org/~koschei/>
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