GetOption(
    'd=s' => $opt_d, # d
    'h=s' => $opt_h, # h
    'l=s' => $opt_l, # l
    'L=s' => $opt_L, # L
    'i=s' => $opt_i, # i
    'o!' => $opt_o, # o:
    'P!' => $opt_P, # P:
    'p=s' => $opt_p, # p
    'q=s' => $opt_q, # q
    'r=s' => $opt_r, # r
    'v!' => $opt_v, # v:
    'c=s' => $opt_c, # c
)

##</code><code>##

GetOption( %h,#values in %h
    'd=s', # d
    'h=s', # h
    'l=s', # l
    'L=s', # L
    'i=s', # i
    'o!', # o:
    'P!', # P:
    'p=s', # p
    'q=s', # q
    'r=s', # r
    'v!', # v:
    'c=s', # c
)
##</code><code>##

#!/usr/bin/perl --

use strict;
use warnings;

Main( @ARGV );
exit( 0 );
sub Main {
    StdToLong('dhlLio:P:pqrv:c');
}

BEGIN {
    my %Flags = (
#~         ':' => '', # boolean, default
        ':' => '!', # boolean, explicit, negatable
        '' => '=s',
    );
    sub StdToLong {
        StdToLong1(@_);
        StdToLong2(@_);
    }
    sub StdToLong1 {
        print "GetOption(\n";
        while( $_[0] =~ m/(\w)(\W)?/g ){
            no warnings 'uninitialized';
            print qq[    '$1$Flags{$2}' => \$opt_$1, # $1$2 \n];
        }
        print "\)\n";
    }
    sub StdToLong2 {
        print "GetOption( \%h,#values in %h\n";
        while( $_[0] =~ m/(\w)(\W)?/g ){
            no warnings 'uninitialized';
            print qq[    '$1$Flags{$2}', # $1$2 \n];
        }
        print "\)\n";
    }
}
__END__