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package Getopt::MySimple;
# Name:
# Getopt::MySimple.
#
# Documentation:
# POD-style (incomplete) documentation is in file MySimple.pod
#
# Tabs:
# 4 spaces || die.
#
# Author:
# Ron Savage rpsavage@ozemail.com.au.
# 1.00 19-Aug-97 Initial version.
# 1.10 13-Oct-97 Add arrays of switches (eg '=s@').
# 1.20 3-Dec-97 Add 'Help' on a per-switch basis.
# 1.30 11-Dec-97 Change 'Help' to 'verbose'. Make all hash keys lowercase.
# 1.40 10-Nov-98 Change width of help report. Restructure tests.
# 1-Jul-00 Modifications for Texi2html
# --------------------------------------------------------------------------
# Locally modified by obachman (Display type instead of env, order by cmp)
# $Id: MySimple.pm,v 1.2 2000/08/14 18:10:17 texi2htm Exp $
# use strict;
# no strict 'refs';
use vars qw(@EXPORT @EXPORT_OK @ISA);
use vars qw($fieldWidth $opt $VERSION);
use Exporter();
use Getopt::Long;
@ISA = qw(Exporter);
@EXPORT = qw();
@EXPORT_OK = qw($opt); # An alias for $self -> {'opt'}.
# --------------------------------------------------------------------------
$fieldWidth = 20;
$VERSION = '1.41';
# --------------------------------------------------------------------------
sub byOrder
{
my($self) = @_;
return uc($a) cmp (uc($b));
}
# --------------------------------------------------------------------------
sub dumpOptions
{
my($self) = @_;
print 'Option', ' ' x ($fieldWidth - length('Option') ), "Value\n";
for (sort byOrder keys(%{$self -> {'opt'} }) )
{
print "-$_", ' ' x ($fieldWidth - (1 + length) ), "${$self->{'opt'} }{$_}\n";
}
print "\n";
} # End of dumpOptions.
# --------------------------------------------------------------------------
# Return:
# 0 -> Error.
# 1 -> Ok.
sub getOptions
{
push(@_, 0) if ($#_ == 2); # Default for $ignoreCase is 0.
push(@_, 1) if ($#_ == 3); # Default for $helpThenExit is 1.
my($self, $default, $helpText, $versionText,
$helpThenExit, $versionThenExit, $ignoreCase) = @_;
$helpThenExit = 1 unless (defined($helpThenExit));
$versionThenExit = 1 unless (defined($versionThenExit));
$ignoreCase = 0 unless (defined($ignoreCase));
$self -> {'default'} = $default;
$self -> {'helpText'} = $helpText;
$self -> {'versionText'} = $versionText;
$Getopt::Long::ignorecase = $ignoreCase;
unless (defined($self -> {'default'}{'help'}))
{
$self -> {'default'}{'help'} =
{
type => ':i',
default => '',
linkage => sub {$self->helpOptions($_[1]); exit (0) if $helpThenExit;},
verbose => "print help and exit"
};
}
unless (defined($self -> {'default'}{'version'}))
{
$self -> {'default'}{'version'} =
{
type => '',
default => '',
linkage => sub {print $self->{'versionText'}; exit (0) if versionTheExit;},
verbose => "print version and exit"
};
}
for (keys(%{$self -> {'default'} }) )
{
my $type = ${$self -> {'default'} }{$_}{'type'};
push(@{$self -> {'type'} }, "$_$type");
$self->{'opt'}->{$_} = ${$self -> {'default'} }{$_}{'linkage'}
if ${$self -> {'default'} }{$_}{'linkage'};
}
my($result) = &GetOptions($self -> {'opt'}, @{$self -> {'type'} });
return $result unless $result;
for (keys(%{$self -> {'default'} }) )
{
if (! defined(${$self -> {'opt'} }{$_})) #{
{
${$self -> {'opt'} }{$_} = ${$self -> {'default'} }{$_}{'default'};
}
}
$result;
} # End of getOptions.
# --------------------------------------------------------------------------
sub helpOptions
{
my($self) = shift;
my($noHelp) = shift;
$noHelp = 0 unless $noHelp;
my($optwidth, $typewidth, $defaultwidth, $maxlinewidth, $valind, $valwidth)
= (10, 5, 9, 78, 4, 11);
print "$self->{'helpText'}" if ($self -> {'helpText'});
print ' Option', ' ' x ($optwidth - length('Option') -1 ),
'Type', ' ' x ($typewidth - length('Type') + 1),
'Default', ' ' x ($defaultwidth - length('Default') ),
"Description\n";
for (sort byOrder keys(%{$self -> {'default'} }) )
{
my($line, $help, $option, $val);
$option = $_;
next if ${$self->{'default'} }{$_}{'noHelp'} && ${$self->{'default'} }{$_}{'noHelp'} > $noHelp;
#$line = " -$_" . ' ' x ($optwidth - (2 + length) ) .
# "${$self->{'default'} }{$_}{'type'} ".
# ' ' x ($typewidth - (1+length(${$self -> {'default'} }{$_}{'type'}) ));
$line = " -$_" . "${$self->{'default'} }{$_}{'type'}".
' ' x ($typewidth - (1+length(${$self -> {'default'} }{$_}{'type'}) ));
$val = ${$self->{'default'} }{$_}{'linkage'};
if ($val)
{
if (ref($val) eq 'SCALAR')
{
$val = $$val;
}
else
{
$val = '';
}
}
else
{
$val = ${$self->{'default'} }{$_}{'default'};
}
$line .= "$val ";
$line .= ' ' x ($optwidth + $typewidth + $defaultwidth + 1 - length($line));
if (defined(${$self -> {'default'} }{$_}{'verbose'}) &&
${$self -> {'default'} }{$_}{'verbose'} ne '')
{
$help = "${$self->{'default'} }{$_}{'verbose'}";
}
else
{
$help = ' ';
}
if ((length("$line") + length($help)) < $maxlinewidth)
{
print $line , $help, "\n";
}
else
{
print $line, "\n", ' ' x $valind, $help, "\n";
}
for $val (sort byOrder keys(%{${$self->{'default'}}{$option}{'values'}}))
{
print ' ' x ($valind + 2);
print $val, ' ', ' ' x ($valwidth - length($val) - 2);
print ${$self->{'default'}}{$option}{'values'}{$val}, "\n";
}
}
print <<EOT;
Note: 'Options' may be abbreviated. 'Type' specifications mean:
<none>| ! no argument: variable is set to 1 on -foo (or, to 0 on -nofoo)
=s | :s mandatory (or, optional) string argument
=i | :i mandatory (or, optional) integer argument
EOT
} # End of helpOptions.
#-------------------------------------------------------------------
sub new
{
my($class) = @_;
my($self) = {};
$self -> {'default'} = {};
$self -> {'helpText'} = '';
$self -> {'opt'} = {};
$opt = $self -> {'opt'}; # An alias for $self -> {'opt'}.
$self -> {'type'} = ();
return bless $self, $class;
} # End of new.
# --------------------------------------------------------------------------
1;
# End MySimple.pm
|
