MySimple.pod   [plain text]


=head1 NAME

C<Getopt::MySimple> - Provide a simple wrapper around Getopt::Long.
=head NOTE
Based on GetOpt::Simple, with some (here undocumented) modifications
to fit texi2hml  needs.

=head1 SYNOPSIS

	use Getopt::MySimple;

	# Or ...
	# use Getopt::MySimple qw($opt);

	my($options) =
	{
	'help' =>
		{
		'type'		=> '',
		'default'	=> '',
#		'verbose'	=> '',	# Not needed on every key.
		},
	'username' =>
		{
		'type'		=> '=s',			# As per Getopt::Long.
		'default'	=> $ENV{'USER'} || 'RonSavage',	# In case $USER is undef.
		'verbose'	=> 'Specify the username on the remote machine',
		},
	'password' =>
		{
		'type'		=> '=s',
		'default'	=> 'password',
		'verbose'	=> 'Specify the password on the remote machine',
		},
	};

	my($option) = new Getopt::MySimple;

	if (! $option -> getOptions($options, "Usage: testMySimple.pl [options]") )
	{
		exit(-1);	# Failure.
	}

	print "username: $option->{'opt'}{'username'}. \n";
	print "password: $option->{'opt'}{'password'}. \n";

	# Or, after 'use Getopt::MySimple qw($opt);' ...
	# print "username: $opt->{'username'}. \n";
	# print "password: $opt->{'password'}. \n";

=head1 DESCRIPTION

The C<Getopt::MySimple> module provides a simple way of specifying:

=over 4

=item *

Command line optes

=item *

Type information for opt values

=item *

Default values for the optes

=item *

Help text per opt

=back

=head1 The C<getOptions()> function

The C<getOptions()> function takes 4 parameters:

=over 4

=item *

A hash defining the command line optes

=item *

A string to display as a help text heading

=item *

A Boolean. 0 = (Default) Use case-sensitive opt names. 1 = Ignore case

=item *

A Boolean. 0 = Return after displaying help. 1 = (Default) Terminate with exit(0)
after displaying help

=back

=head1 The $classRef -> {'opt'} hash reference

Command line option values are accessed in your code by dereferencing
the hash reference $classRef -> {'opt'}. Two examples are given above,
under synopsis.

Alternately, you can use the hash reference $opt. See below.

=head1 The $opt hash reference

Command line option values are accessed in your code by dereferencing
the hash reference $opt. Two examples are given above,
under synopsis.

Alternately, you can use the hash reference $classRef -> {'opt'}. See above.

=head1 The C<dumpOptions()> function

C<dumpOptions()> prints all your option's keys and their current values.

=head1 The C<helpOptions()> function

C<helpOptions()> prints nicely formatted help text.

=head1 WARNING re Perl bug

As always, be aware that these 2 lines mean the same thing, sometimes:

=over 4

=item *

$self -> {'thing'}

=item *

$self->{'thing'}

=back

The problem is the spaces around the ->. Inside double quotes, "...", the
first space stops the dereference taking place. Outside double quotes the
scanner correctly associates the $self token with the {'thing'} token.

I regard this as a bug.

=head1 REQUIRED MODULES

=over 4

=item *

Exporter

=item *

Getopt::Long

=back

=head1 RETURN VALUES

=over 4

=item *

C<dumpOptions()> returns nothing

=item *

C<helpOptions()> returns nothing

=item *

C<getOptions()> returns 0 for failure and 1 for success

=back

=head1 AUTHOR

C<Getopt::MySimple> was written by Ron Savage I<E<lt>rpsavage@ozemail.com.auE<gt>> in 1997.

Modifications for texi2html by Olaf Bachmann
I<E<lt>obachman@mathtematik.uni-kl.deE<gt>> in 2000.
=head1 LICENCE

This program is free software; you can redistribute it and/or modify it under
the same terms as Perl itself.