Re: Help display when executing the script

Hi, If I understood your question correctly then try like this,

use strict;
use warnings;
use Win32;
use Getopt::Std;
my %opts;

getopts("h", \%opts);

help() if $opts{h};


sub help
{
    Win32::MsgBox("Help Content", 32, "Help");
    exit;
}
[download]

Updated : Thanks davorg.

Regards,
Velusamy R.

eval"print uc\"\\c$_\""for split'','j)@,/6%@0%2,`e@3!-9v2)/@|6%,53!-9@2~j';

Comment on Re: Help display when executing the script Select or Download Code

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Re^2: Help display when executing the script by davorg (Chancellor) on Aug 08, 2006 at 10:32 UTC
for a long time, Getopt::Std has supported an interface which doesn't require the use of package variables. You can pass in a reference to a hash and that hash will be populated with the options. `use Getopt::Std; my %opts; getopts('h', \%opts); help() if $opts{h};` [download] I think that's a much nicer interface. Also, I think your call to `getopts` uses the Getopt::Long interface, not the Getopt::Std one. Getopt::Std only supports single letter options. -- <http://dave.org.uk> "The first rule of Perl club is you do not talk about Perl club." -- Chip Salzenberg	[reply] [d/l]

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Re^2: Help display when executing the script
by davorg (Chancellor) on Aug 08, 2006 at 10:32 UTC

for a long time, Getopt::Std has supported an interface which doesn't require the use of package variables. You can pass in a reference to a hash and that hash will be populated with the options.

use Getopt::Std;

my %opts;

getopts('h', \%opts);

help() if $opts{h};
[download]

I think that's a much nicer interface.

Also, I think your call to getopts uses the Getopt::Long interface, not the Getopt::Std one. Getopt::Std only supports single letter options.

--
<http://dave.org.uk>

"The first rule of Perl club is you do not talk about Perl club."
-- Chip Salzenberg

[reply]
[d/l]