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Edit File : GetOptsOO.pm \| Size : 3.80 KB
package Pod::Perldoc::GetOptsOO; use strict; use vars qw($VERSION); $VERSION = '3.28'; BEGIN { # Make a DEBUG constant ASAP DEBUG = defined( &Pod::Perldoc::DEBUG ) ? \&Pod::Perldoc::DEBUG : sub(){10}; } sub getopts { my($target, $args, $truth) = @_; $args \|\|= \@ARGV; $target->aside( "Starting switch processing. Scanning arguments [@$args]\n" ) if $target->can('aside'); return unless @$args; $truth = 1 unless @_ > 2; DEBUG > 3 and print " Truth is $truth\n"; my $error_count = 0; while( @$args and ($_ = $args->[0]) =~ m/^-(.)(.)/s ) { my($first,$rest) = ($1,$2); if ($_ eq '--') { # early exit if "--" shift @$args; last; } if ($first eq '-' and $rest) { # GNU style long param names ($first, $rest) = split '=', $rest, 2; } my $method = "opt_${first}_with"; if( $target->can($method) ) { # it's argumental if($rest eq '') { # like -f bar shift @$args; $target->warn( "Option $first needs a following argument!\n" ) unless @$args; $rest = shift @$args; } else { # like -fbar (== -f bar) shift @$args; } DEBUG > 3 and print " $method => $rest\n"; $target->$method( $rest ); # Otherwise, it's not argumental... } else { if( $target->can( $method = "opt_$first" ) ) { DEBUG > 3 and print " $method is true ($truth)\n"; $target->$method( $truth ); # Otherwise it's an unknown option... } elsif( $target->can('handle_unknown_option') ) { DEBUG > 3 and print " calling handle_unknown_option('$first')\n"; $error_count += ( $target->handle_unknown_option( $first ) \|\| 0 ); } else { ++$error_count; $target->warn( "Unknown option: $first\n" ); } if($rest eq '') { # like -f shift @$args } else { # like -fbar (== -f -bar ) DEBUG > 2 and print " Setting args->[0] to \"-$rest\"\n"; $args->[0] = "-$rest"; } } } $target->aside( "Ending switch processing. Args are [@$args] with $error_count errors.\n" ) if $target->can('aside'); $error_count == 0; } 1; __END__ =head1 NAME Pod::Perldoc::GetOptsOO - Customized option parser for Pod::Perldoc =head1 SYNOPSIS use Pod::Perldoc::GetOptsOO (); Pod::Perldoc::GetOptsOO::getopts( $obj, \@args, $truth ) or die "wrong usage"; =head1 DESCRIPTION Implements a customized option parser used for L<Pod::Perldoc>. Rather like Getopt::Std's getopts: =over =item Call Pod::Perldoc::GetOptsOO::getopts($object, \@ARGV, $truth) =item Given -n, if there's a opt_n_with, it'll call $object->opt_n_with( ARGUMENT ) (e.g., "-n foo" => $object->opt_n_with('foo'). Ditto "-nfoo") =item Otherwise (given -n) if there's an opt_n, we'll call it $object->opt_n($truth) (Truth defaults to 1) =item Otherwise we try calling $object->handle_unknown_option('n') (and we increment the error count by the return value of it) =item If there's no handle_unknown_option, then we just warn, and then increment the error counter =back The return value of Pod::Perldoc::GetOptsOO::getopts is true if no errors, otherwise it's false. =head1 SEE ALSO L<Pod::Perldoc> =head1 COPYRIGHT AND DISCLAIMERS Copyright (c) 2002-2007 Sean M. Burke. This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself. This program is distributed in the hope that it will be useful, but without any warranty; without even the implied warranty of merchantability or fitness for a particular purpose. =head1 AUTHOR Current maintainer: Mark Allen C<< <mallen@cpan.org> >> Past contributions from: brian d foy C<< <bdfoy@cpan.org> >> Adriano R. Ferreira C<< <ferreira@cpan.org> >>, Sean M. Burke C<< <sburke@cpan.org> >> =cut Back

Edit File : GetOptsOO.pm | Size : 3.80 KB

package Pod::Perldoc::GetOptsOO;
use strict;

use vars qw($VERSION);
$VERSION = '3.28';

BEGIN { # Make a DEBUG constant ASAP
  *DEBUG = defined( &Pod::Perldoc::DEBUG )
   ? \&Pod::Perldoc::DEBUG
   : sub(){10};
}

sub getopts {
  my($target, $args, $truth) = @_;

$args ||= \@ARGV;

$target->aside(
    "Starting switch processing.  Scanning arguments [@$args]\n"
  ) if $target->can('aside');

return unless @$args;

$truth = 1 unless @_ > 2;

DEBUG > 3 and print "   Truth is $truth\n";

my $error_count = 0;

while( @$args  and  ($_ = $args->[0]) =~ m/^-(.)(.*)/s ) {
    my($first,$rest) = ($1,$2);
    if ($_ eq '--') {	# early exit if "--"
      shift @$args;
      last;
    }
    if ($first eq '-' and $rest) {      # GNU style long param names
      ($first, $rest) = split '=', $rest, 2;
    }
    my $method = "opt_${first}_with";
    if( $target->can($method) ) {  # it's argumental
      if($rest eq '') {   # like -f bar
        shift @$args;
        $target->warn( "Option $first needs a following argument!\n" ) unless @$args;
        $rest = shift @$args;
      } else {            # like -fbar  (== -f bar)
        shift @$args;
      }

DEBUG > 3 and print " $method => $rest\n";
      $target->$method( $rest );

# Otherwise, it's not argumental...
    } else {

if( $target->can( $method = "opt_$first" ) ) {
        DEBUG > 3 and print " $method is true ($truth)\n";
        $target->$method( $truth );

# Otherwise it's an unknown option...

} elsif( $target->can('handle_unknown_option') ) {
        DEBUG > 3
         and print " calling handle_unknown_option('$first')\n";

$error_count += (
          $target->handle_unknown_option( $first ) || 0
        );

} else {
        ++$error_count;
        $target->warn( "Unknown option: $first\n" );
      }

if($rest eq '') {   # like -f
        shift @$args
      } else {            # like -fbar  (== -f -bar )
        DEBUG > 2 and print "   Setting args->[0] to \"-$rest\"\n";
        $args->[0] = "-$rest";
      }
    }
  }

$target->aside(
    "Ending switch processing.  Args are [@$args] with $error_count errors.\n"
  ) if $target->can('aside');

$error_count == 0;
}

__END__

=head1 NAME

Pod::Perldoc::GetOptsOO - Customized option parser for Pod::Perldoc

=head1 SYNOPSIS

use Pod::Perldoc::GetOptsOO ();

Pod::Perldoc::GetOptsOO::getopts( $obj, \@args, $truth )
       or die "wrong usage";

=head1 DESCRIPTION

Implements a customized option parser used for
L<Pod::Perldoc>.

Rather like Getopt::Std's getopts:

=over

=item Call Pod::Perldoc::GetOptsOO::getopts($object, \@ARGV, $truth)

=item Given -n, if there's a opt_n_with, it'll call $object->opt_n_with( ARGUMENT )
   (e.g., "-n foo" => $object->opt_n_with('foo').  Ditto "-nfoo")

=item Otherwise (given -n) if there's an opt_n, we'll call it $object->opt_n($truth)
   (Truth defaults to 1)

=item Otherwise we try calling $object->handle_unknown_option('n')
   (and we increment the error count by the return value of it)

=item If there's no handle_unknown_option, then we just warn, and then increment
   the error counter

=back

The return value of Pod::Perldoc::GetOptsOO::getopts is true if no errors,
otherwise it's false.

=head1 SEE ALSO

L<Pod::Perldoc>

=head1 COPYRIGHT AND DISCLAIMERS

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

This program is distributed in the hope that it will be useful, but
without any warranty; without even the implied warranty of
merchantability or fitness for a particular purpose.

=head1 AUTHOR

Current maintainer: Mark Allen C<< <mallen@cpan.org> >>

Past contributions from:
brian d foy C<< <bdfoy@cpan.org> >>
Adriano R. Ferreira C<< <ferreira@cpan.org> >>,
Sean M. Burke C<< <sburke@cpan.org> >>

=cut

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