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/usr/bin/tkmore is in libtk-pod-perl 0.9943-1.

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#!/usr/bin/perl -w

use strict;
use vars qw($VERSION);

$VERSION = 5.08;

use Tk;
use Tk::More;
use Getopt::Long;

my %opt;

Getopt::Long::config('pass_through');
if (!GetOptions(\%opt, "font=s", "i|ignore-case!", "encoding=s", "S")) {
    require Pod::Usage;
    Pod::Usage::pod2usage(2);
}

my $mw = tkinit;

# Unhandled options left?
Getopt::Long::config('nopass_through');
if (!GetOptions({})) {
    require Pod::Usage;
    Pod::Usage::pod2usage(2);
}

my $file = shift @ARGV;
if (!defined $file) {
    die "Filename is missing.\n";
}

my $more = $mw->Scrolled("More",
			 -font => $opt{font},
			 -scrollbars => "osoe",
			 -searchcase => !$opt{i},
			 ($opt{S} ? (-wrap => 'none') : ()),
			)->pack(-fill => "both", -expand => 1);

my $menu = $more->menu;
my $fm = $menu->entrycget("File", -menu);
$fm->insert("Exit", "command", -label => "Open ...", -underline => 0,
	    -command => sub {
		my $f = $more->getOpenFile;
		return if !defined $f;
		load_file($f);
	    });
$fm->entryconfigure("Exit", -accelerator => "Ctrl-Q");

my $helpmenu = $menu->Menu
    (-tearoff => 0,
     -menuitems => [
		    [Button => "~Usage",
		     -command => sub {
			 require Tk::Pod;
			 $mw->Pod(-file => "Tk::More");
		     }]
		   ]
    );
$menu->cascade(-label => "Help", -underline => 0, -menu => $helpmenu);
$mw->configure(-menu => $menu);

$more->focus;
load_file($file);
$more->AddQuitBindings;
MainLoop;

sub load_file {
    my $file = shift;
 LOAD_FILE: {
	# check if it's gzipped
	my $buf;
	if (open(FILE, "<$file") &&
	    read(FILE, $buf, 2) == 2 &&
	    $buf eq "\037\213" &&
	    eval { require PerlIO::gzip; 1 }
	   ) {
	    seek FILE, 0, 0 or die $!;
	    binmode FILE, ':gzip';
	    $more->LoadFH(\*FILE, -encoding => $opt{encoding});
	    last LOAD_FILE;
	}

	$more->Load($file, -encoding => $opt{encoding});
    };
    $mw->title("tkmore - $file");
}

__END__

=head1 NAME

tkmore - a Perl/Tk based pager

=head1 SYNOPSIS

    tkmore [X11 options] [-i] [-encoding encoding] filename

=head1 DESCRIPTION

B<tkmore> is a pager similar to L<more(1)> or L<less(1)>.

=head2 OPTIONS

Besides standard X11 options like C<-font>, B<tkmore> supports:

=over

=item -i

Turn on case-insensitive search. Alias: C<-ignore-case>.

=item -encoding encoding

Specify the encoding for the specified file and all subsequently
loaded files. By default no encoding is assumed.

=item -S

Set wrap mode to B<none>. The effect is similar like the C<-S> option
of C<less>.

=back

=head2 KEY BINDINGS

For a list of key bindings, see L<Tk::More/ADDITIONAL BINDINGS>.

=head1 AUTHOR

Slaven Rezic

=head1 SEE ALSO

L<Tk::More>, L<more(1)>, L<less(1)>

=cut