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345
Perl/bin/ptked
Normal file
345
Perl/bin/ptked
Normal file
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#!/usr/local/bin/perl -w
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use strict;
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use Socket;
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use IO::Socket;
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use Cwd;
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use Getopt::Long;
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use vars qw($VERSION $portfile);
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$VERSION = sprintf '4.%03d', q$Revision: #29 $ =~ /\D(\d+)\s*$/;
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my %opt;
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INIT
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{
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my $home = $ENV{'HOME'} || $ENV{'HOMEDRIVE'}.$ENV{'HOMEPATH'};
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$portfile = "$home/.ptkedsn";
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my $port = $ENV{'PTKEDPORT'};
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return if $^C;
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GetOptions(\%opt,qw(server! encoding=s));
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unless (defined $port)
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{
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if (open(SN,"$portfile"))
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{
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$port = <SN>;
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close(SN);
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}
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}
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if (defined $port)
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{
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my $sock = IO::Socket::INET->new(PeerAddr => 'localhost',
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PeerPort => $port, Proto => 'tcp');
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if ($sock)
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{
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binmode($sock);
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$sock->autoflush;
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foreach my $file (@ARGV)
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{
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unless (print $sock "$file\n")
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{
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die "Cannot print $file to socket:$!";
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}
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print "Requested '$file'\n";
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}
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$sock->close || die "Cannot close socket:$!";
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exit(0);
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}
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else
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{
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warn "Cannot connect to server on $port:$!";
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}
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}
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}
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use Tk;
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use Tk::DropSite qw(XDND Sun);
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use Tk::DragDrop qw(XDND Sun);
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use Tk::widgets qw(TextUndo Scrollbar Menu Dialog);
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# use Tk::ErrorDialog;
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{
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package Tk::TextUndoPtked;
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@Tk::TextUndoPtked::ISA = qw(Tk::TextUndo);
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Construct Tk::Widget 'TextUndoPtked';
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sub Save {
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my $w = shift;
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$w->SUPER::Save(@_);
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$w->toplevel->title($w->FileName);
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}
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sub Load {
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my $w = shift;
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$w->SUPER::Load(@_);
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$w->toplevel->title($w->FileName);
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}
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sub MenuLabels { shift->SUPER::MenuLabels, 'Encoding' }
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sub Encoding
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{
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my ($w,$enc) = @_;
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if (@_ > 1)
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{
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$enc = $w->getEncoding($enc) unless ref($enc);
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$w->{ENCODING} = $enc;
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$enc = $enc->name;
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$w->PerlIO_layers(":encoding($enc)");
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}
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return $w->{ENCODING};
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}
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sub EncodingMenuItems
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{
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my ($w) = @_;
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return [ [ command => 'System', -command => [ $w, Encoding => Tk::SystemEncoding()->name ]],
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[ command => 'UTF-8', -command => [ $w, Encoding => 'UTF-8'] ],
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[ command => 'iso-8859-1', -command => [ $w, Encoding => 'iso8859-1'] ],
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[ command => 'iso-8859-15', -command => [ $w, Encoding => 'iso8859-15'] ],
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];
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}
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}
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my $top = MainWindow->new();
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if ($opt{'server'})
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{
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my $sock = IO::Socket::INET->new(Listen => 5, Proto => 'tcp');
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die "Cannot open listen socket:$!" unless defined $sock;
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binmode($sock);
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my $port = $sock->sockport;
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$ENV{'PTKEDPORT'} = $port;
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open(SN,">$portfile") || die "Cannot open $portfile:$!";
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print SN $port;
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close(SN);
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print "Accepting connections on $port\n";
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$top->fileevent($sock,'readable',
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sub
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{
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print "accepting $sock\n";
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my $client = $sock->accept;
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if (defined $client)
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{
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binmode($client);
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print "Connection $client\n";
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$top->fileevent($client,'readable',[\&EditRequest,$client]);
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}
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});
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}
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Tk::Event::HandleSignals();
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$SIG{'INT'} = sub { $top->WmDeleteWindow };
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$top->iconify;
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$top->optionAdd('*TextUndoPtked.Background' => '#fff5e1');
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$top->fontCreate('ptked',-family => 'courier', -size => ($^O eq 'MSWin32' ? 11 : -12),
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-weight => 'normal', -slant => 'roman');
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$top->optionAdd('*TextUndoPtked.Font' => 'ptked');
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foreach my $file (@ARGV)
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{
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Create_Edit($file);
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}
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sub EditRequest
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{
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my ($client) = @_;
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local $_;
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while (<$client>)
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{
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chomp($_);
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print "'$_'\n",
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Create_Edit($_);
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}
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warn "Odd $!" unless eof($client);
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$top->fileevent($client,'readable','');
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print "Close $client\n";
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$client->close;
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}
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MainLoop;
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unlink("$portfile");
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exit(0);
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sub Create_Edit
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{
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my $path = shift;
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my $ed = $top->Toplevel(-title => $path);
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$ed->withdraw;
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$top->{'Edits'}++;
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$ed->OnDestroy([\&RemoveEdit,$top]);
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my $t = $ed->Scrolled('TextUndoPtked', -wrap => 'none',
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-scrollbars => 'se', # both required till optional fixed!
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);
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$t->pack(-expand => 1, -fill => 'both');
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$t = $t->Subwidget('scrolled');
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$t->Encoding($opt{encoding}) if $opt{encoding};
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my $menu = $t->menu;
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$menu->cascade(-label => '~Help', -menuitems => [
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[Button => '~About...', -command => [\&About,$ed]],
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]);
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$ed->configure(-menu => $menu);
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my $dd = $t->DragDrop(-event => '<Meta-B1-Motion>');
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$t->bind(ref($t),'<Meta-B1-Motion>',\&Ouch);
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$t->bind(ref($t),'<Meta-ButtonPress>',\&Ouch);
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$t->bind(ref($t),'<Meta-ButtonRelease>',\&Ouch);
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$dd->configure(-startcommand =>
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sub
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{
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return 1 unless (eval { $t->tagNextrange(sel => '1.0','end')});
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$dd->configure(-text => $t->get('sel.first','sel.last'));
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});
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$t->DropSite(-motioncommand =>
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sub
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{ my ($x,$y) = @_;
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$t->markSet(insert => "\@$x,$y");
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},
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-dropcommand => [\&HandleDrop,$t],
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);
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$ed->protocol('WM_DELETE_WINDOW',[ConfirmExit => $t]);
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$t->bind('<F3>',\&DoFind);
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$ed->idletasks;
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if (-e $path)
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{
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$t->Load($path);
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}
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else
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{
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$t->FileName($path);
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}
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$ed->deiconify;
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$t->update;
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$t->focus;
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}
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sub Ouch
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{
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warn join(',','Ouch',@_);
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}
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sub RemoveEdit
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{
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my $top = shift;
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if (--$top->{'Edits'} == 0)
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{
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$top->destroy unless $opt{'s'};
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}
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}
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sub HandleDrop
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{my ($t,$seln,$x,$y) = @_;
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# warn join(',',Drop => @_);
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my $string;
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Tk::catch { $string = $t->SelectionGet(-selection => $seln,'FILE_NAME') };
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if ($@)
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{
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Tk::catch { $string = $t->SelectionGet(-selection => $seln) };
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if ($@)
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{
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my @targets = $t->SelectionGet(-selection => $seln, 'TARGETS');
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$t->messageBox(-text => "Targets : ".join(' ',@targets));
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}
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else
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{
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$t->markSet(insert => "\@$x,$y");
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$t->insert(insert => $string);
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}
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}
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else
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{
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Create_Edit($string);
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}
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}
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my $str;
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sub DoFind
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{
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my $t = shift;
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$str = shift if (@_);
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my $posn = $t->index('insert+1c');
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$t->tag('remove','sel','1.0','end');
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local $_;
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while ($t->compare($posn,'<','end'))
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{
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my ($line,$col) = split(/\./,$posn);
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$_ = $t->get("$line.0","$posn lineend");
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pos($_) = $col;
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if (/\G(.*)$str/g)
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{
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$col += length($1);
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$posn = "$line.$col";
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$t->SetCursor($posn);
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$t->tag('add','sel',$posn,"$line.".pos($_));
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$t->focus;
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return;
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}
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$posn = $t->index("$posn lineend + 1c");
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}
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}
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sub AskFind
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{
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my ($t) = @_;
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unless (exists $t->{'AskFind'})
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{
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my $d = $t->{'AskFind'} = $t->Toplevel(-popover => 'cursor', -popanchor => 'nw');
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$d->title('Find...');
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$d->withdraw;
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$d->transient($t->toplevel);
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my $e = $d->Entry->pack;
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$e->bind('<Return>', sub { $d->withdraw; DoFind($t,$e->get); });
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$d->protocol(WM_DELETE_WINDOW =>[withdraw => $d]);
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}
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$t->{'AskFind'}->Popup;
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$t->update;
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$t->{'AskFind'}->focusNext;
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}
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sub About
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{
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my $mw = shift;
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$mw->Dialog(-text => <<"END",-popover => $mw)->Show;
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$0 version $VERSION
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perl$]/Tk$Tk::VERSION
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Copyright <20> 1995-2004 Nick Ing-Simmons. All rights reserved.
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This package is free software; you can redistribute it and/or
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modify it under the same terms as Perl itself.
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END
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}
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__END__
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=head1 NAME
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ptked - an editor in Perl/Tk
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=head1 SYNOPSIS
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S< >B<ptked> [I<file-to-edit>]
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=head1 DESCRIPTION
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B<ptked> is a simple text editor based on perl/Tk's TextUndo widget.
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=cut
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