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+#!/usr/local/bin/perl -w
+
+use 5.008;
+use Config;
+use Tk 804.000;
+use lib Tk->findINC( 'demos/widget_lib' );
+use Tk::widgets qw/ DialogBox ErrorDialog LabEntry ROText /;
+use Tk::Config ();
+use WidgetDemo;
+use subs qw/
+ build_about_dialog demos invoke lsearch
+ see_code see_vars show_stat view_widget
+/;
+use vars qw/ $MW $FONT $BOLD_FONT $LARGE_FONT $MONOSPACE_FONT $WIDTRIB /;
+use vars qw/ $CODE $CODE_RERUN $CODE_TEXT $VARS $VIEW $VIEW_TEXT /;
+use vars qw/ $ALIGN $BRAKES $LIGHTS $OIL $SOBER $TRANS $WIPERS /;
+use vars qw/ $COLOR $FONT_STYLE $POINT_SIZE $DEMO_FILE %DEMO_DESCRIPTION $XFT /;
+use strict;
+
+$XFT = $Tk::Config::xlib =~ /-lXft\b/;
+
+$MW = Tk::MainWindow->new;
+$MW->configure(-menu => my $menubar = $MW->Menu);
+
+{
+ package WidgetWrap;
+ @WidgetWrap::ISA = qw/Tk::MainWindow/;
+
+ # This magic conspires with widget's AUTOLOAD subroutine to make user
+ # contributed demonstrations that don't use WidgetDemo embed properly.
+ # The trick works because widget creates a superclass of Tk::MainWindow
+ # which invokes WidgetDemo() implicitly. You loose if you bypass the
+ # inheritance mechanism and call Tk::MainWindow directly.
+
+ sub new {
+ my ($name) = $::DEMO_FILE =~ m#([^/]+).pl$#;
+ $::MW->WidgetDemo(-name => $name, -text => $::DEMO_DESCRIPTION{$name});
+ }
+}
+
+@MainWindow::ISA = 'WidgetWrap';
+
+$MW->title('Perl/Tk Widget Demonstration');
+$MW->iconname('widget');
+
+my $DEFAULT_FONT_FAMILY = $XFT ? "sans-serif" : "Helvetica";
+{
+ $FONT = "$DEFAULT_FONT_FAMILY 12";
+ $BOLD_FONT = "$DEFAULT_FONT_FAMILY 12 bold";
+ $LARGE_FONT = "$DEFAULT_FONT_FAMILY 18";
+ $MONOSPACE_FONT = "Courier 12";
+ my $l = $MW->Label;
+ my $default_font = $l->cget(-font);
+ if ($default_font) {
+ my %default_font = $MW->fontActual($default_font);
+ $FONT = $MW->fontCreate(%default_font, -family => $DEFAULT_FONT_FAMILY);
+ $BOLD_FONT = $MW->fontCreate(%default_font, -family => $DEFAULT_FONT_FAMILY, -weight => "bold");
+ $LARGE_FONT = $MW->fontCreate(%default_font, -family => $DEFAULT_FONT_FAMILY, -weight => "bold", -size => -18);
+ $MONOSPACE_FONT = $MW->fontCreate(%default_font, -family => $XFT ? "monospace" : "Courier");
+ $MW->optionAdd("*font", $FONT);
+ }
+ $l->destroy;
+}
+
+my $widget_lib = Tk->findINC('demos/widget_lib');
+my $wd = "$widget_lib/WidgetDemo.pm";
+$WIDTRIB = Tk->findINC('demos/widtrib');
+unless (Tk::tainting) {
+ $WIDTRIB = $ENV{WIDTRIB} if defined $ENV{WIDTRIB};
+ $WIDTRIB = $ARGV[0] if defined $ARGV[0];
+}
+
+# The code below creates the main window, consisting of a menu bar
+# and a text widget that explains how to use the program, plus lists
+# all of the demos as hypertext items.
+
+my $file = $menubar->cascade(qw/-label File -underline 0 -menuitems/ =>
+ [
+ [cascade => '~View', -menuitems =>
+ [
+ [command => '~widget', -command => [\&view_widget, __FILE__]],
+ [command => '~WidgetDemo', -command => [\&view_widget, $wd]],
+ ], # end cascade menuitems
+ ], # end view cascade
+ '',
+ [command => '~Quit', -command => [\&exit], -accelerator => 'Ctrl-Q'],
+ ]);
+
+my $help = $menubar->cascade(qw/-label Help -underline 0 -menuitems/ =>
+ [
+ [command => '~About'],
+ ]);
+
+my $T = $MW->Scrolled('ROText',
+ -scrollbars => 'e',
+ -wrap => 'word',
+ -width => 70,
+ -height => 30,
+ -font => $FONT,
+ -setgrid => 1,
+ -highlightthickness => 0,
+ -padx => 4,
+ -pady => 2,
+ -takefocus => 0,
+)->grid(qw/-sticky nsew/);
+$MW->gridRowconfigure( 0, -weight => 1); # allow expansion in both ...
+$MW->gridColumnconfigure(0, -weight => 1); # ... X and Y dimensions
+
+$MW->bind('<Control-q>' => \&exit);
+
+my $STATUS_VAR;
+my $status = $MW->Label(-textvariable => \$STATUS_VAR, qw/-anchor w/);
+$status->grid(qw/-sticky ew/);
+
+# Create a bunch of tags to use in the text widget, such as those for
+# section titles and demo descriptions. Also define the bindings for
+# tags.
+
+$T->tagConfigure(qw/title -font/, $LARGE_FONT);
+$T->tagConfigure(qw/demo -lmargin1 1c -lmargin2 1c -foreground blue/);
+
+if ($MW->depth == 1) {
+ $T->tagConfigure(qw/hot -background black -foreground white/);
+ $T->tagConfigure(qw/visited -lmargin1 1c -lmargin2 1c -underline 1/);
+} else {
+ $T->tagConfigure(qw/hot -relief raised -borderwidth 1 -foreground red/);
+ $T->tagConfigure(qw/visited -lmargin1 1c -lmargin2 1c -foreground/ =>
+ '#303080');
+}
+$T->tagConfigure('bold', -font => $BOLD_FONT);
+
+$T->tagBind(qw/demo <ButtonRelease-1>/ => \&invoke);
+my $last_line = '';
+$T->tagBind(qw/demo <Enter>/ => [sub {
+ my($text, $sv) = @_;
+ my $e = $text->XEvent;
+ my($x, $y) = ($e->x, $e->y);
+ $last_line = $text->index("\@$x,$y linestart");
+ $text->tagAdd('hot', $last_line, "$last_line lineend");
+ $text->configure(qw/-cursor hand2/);
+ show_stat $sv, $text, $text->index('current');
+ }, \$STATUS_VAR]
+);
+$T->tagBind(qw/demo <Leave>/ => [sub {
+ my($text, $sv) = @_;
+ $text->tagRemove(qw/hot 1.0 end/);
+ $text->configure(qw/-cursor xterm/);
+ $$sv = '';
+ }, \$STATUS_VAR]
+);
+$T->tagBind(qw/demo <Motion>/ => [sub {
+ my($text, $sv) = @_;
+ my $e = $text->XEvent;
+ my($x, $y) = ($e->x, $e->y);
+ my $new_line = $text->index("\@$x,$y linestart");
+ if ($new_line ne $last_line) {
+ $text->tagRemove(qw/hot 1.0 end/);
+ $last_line = $new_line;
+ $text->tagAdd('hot', $last_line, "$last_line lineend");
+ }
+ show_stat $sv, $text, $text->index('current');
+ }, \$STATUS_VAR]
+);
+
+# Create the text for the text widget.
+
+$T->insert('end', "Perl/Tk Widget Demonstrations\n", 'title');
+$T->insert('end',
+"\nThis application provides a front end for several short scripts that demonstrate what you can do with Tk widgets. Each of the numbered lines below describes a demonstration; you can click on it to invoke the demonstration. Once the demonstration window appears, you can click the ", '', 'See Code', 'bold', " button to see the Perl/Tk code that created the demonstration. If you wish, you can edit the code and click the ", '', "Rerun Demo", 'bold', " button in the code window to reinvoke the demonstration with the modified code.\n"
+);
+
+demos 'Getting Started', (
+ 'hello' => 'An introduction to Perl/Tk',
+);
+
+demos 'Labels, buttons, checkbuttons, and radiobuttons', (
+ 'labels' => 'Labels (text and images)',
+ 'unicodeout' => 'Labels and Unicode text',
+ 'button' => 'Buttons',
+ 'check' => 'Checkbuttons (select any of a group)',
+ 'radio' => 'Radiobuttons (select one of a group)',
+ 'puzzle' => 'A 15-puzzle game made out of buttons',
+ 'icon' => 'Iconic buttons that use bitmaps',
+ 'image1' => 'Two labels displaying images',
+ 'image2' => 'A simple user interface for viewing images',
+ 'labelframe' => 'Labelled frames',
+);
+
+demos 'Listboxes', (
+ 'states' => 'The 50 states',
+ 'colors' => 'Change widget\'s color scheme',
+ 'sayings' => 'A collection of famous and infamous sayings',
+);
+
+demos 'Entries and Spin-boxes', (
+ 'entry1' => 'Entries without scrollbars',
+ 'entry2' => 'Entries with scrollbars',
+ 'entry3' => 'Validated entries and password fields',
+ 'spin' => 'Spin-boxes',
+ 'form' => 'Simple Rolodex-like form',
+);
+
+demos 'Text', (
+ 'texts' => 'Basic editable text',
+ 'style' => 'Text display styles',
+ 'bind' => 'Hypertext (tag bindings)',
+ 'twind' => 'A text widget with embedded windows',
+ 'search' => 'A search tool built with a text widget',
+);
+
+demos 'Canvases', (
+ 'items' => 'The canvas item types',
+ 'plot' => 'A simple 2-D plot',
+ 'ctext' => 'Text items in canvases',
+ 'arrows' => 'An editor for arrowheads on canvas lines',
+ 'ruler' => 'A ruler with adjustable tab stops',
+ 'floor' => 'A building floor plan',
+ 'cscroll' => 'A simple scrollable canvas',
+ 'transtile' => 'Tiles and transparent images',
+);
+
+demos 'Scales', (
+ 'hscale' => 'Horizontal scale',
+ 'vscale' => 'Vertical scale',
+);
+
+demos 'Paned Windows', (
+ 'paned1' => 'Horizontal paned window',
+ 'paned2' => 'Vertical paned window',
+);
+
+demos 'Photos and Images', (
+ 'photo1' => 'Transparent pixels',
+ 'photo2' => 'Alpha channel compositing',
+);
+
+demos 'Menus', (
+ 'menus' => 'Menus and cascades (sub-menus)',
+ 'menus2' => 'As above, but using Perl/Tk -menuitems',
+ 'menbut' => 'Menubuttons',
+);
+
+demos 'Common Dialogs', (
+ 'msgBox' => 'Message boxes',
+ 'filebox' => 'File selection dialog',
+ 'choosedir' => 'Directory selection dialog',
+ 'clrpick' => 'Color picker',
+);
+
+demos 'Tix Widgets', (
+ 'balloon' => 'Popup help window when mouse lingers over widget',
+ 'browseentry' => 'Entry with Listbox to select list values',
+ 'browseentry2' => 'Another BrowseEntry example',
+ 'dirtree' => 'Display a directory tree',
+ 'form_mgr' => 'The form geometry manager',
+ 'HList' => 'A hierarchical listbox widget',
+ 'HList2' => 'Multicolumn listbox with individual cell styles',
+ 'labframe' => 'A Frame with embedded label',
+);
+
+demos 'Simulations', (
+ 'bounce' => 'Balls bouncing in a cavity',
+);
+
+demos 'Sample Perl Mega-Widgets', (
+ 'mega' => 'Introduction to writing pure Perl mega-widgets',
+ 'slide' => 'Composite Tk::SlideSwitch - binary on/off switch',
+ 'trace2' => 'Derived Tk::TraceText - Text contents defined by a traced variable',
+);
+
+demos 'Miscellaneous', (
+ 'bitmaps' => 'The built-in bitmaps',
+ 'dialog1' => 'A dialog box with a local grab',
+ 'dialog2' => 'A dialog box with a global grab',
+ 'trace1' => 'Trace a variable\'s value',
+ 'progress' => 'Various ProgressBar widgets',
+ 'keysyms' => 'Show keyboard symbols',
+ 'virtevents1' => 'Synthesizing events',
+);
+
+$T->insert('end', "\n", '', "User Contributed Demonstrations\n", 'title');
+opendir(C, $WIDTRIB) or warn "Cannot open $WIDTRIB: $!";
+my(@dirent) = grep /^.+\.pl$/, sort(readdir C);
+closedir C;
+unshift @dirent, 'TEMPLATE.pl'; # I want it first
+my $i = 0;
+while ($_ = shift @dirent) {
+ next if /TEMPLATE\.pl/ and $i != 0;
+ unless (open(C, "$WIDTRIB/$_")) {
+ warn "Cannot open $_: $!" unless /TEMPLATE\.pl/;
+ next;
+ }
+ my($name) = /^(.*)\.pl$/;
+ $_ = <C>;
+ my($title) = /^#\s*(.*)$/;
+ $title =~ s{\r}{}g; # strip DOS newlines
+ $DEMO_DESCRIPTION{$name} = $title;
+ close C;
+ $T->insert('end', ++$i . ". $title\n", ['demo', "demo-$name"]);
+}
+
+build_about_dialog $help;
+$T->focus;
+
+MainLoop;
+
+sub AUTOLOAD {
+
+ # This routine handles the loading of most demo methods.
+
+ my($demo) = @_;
+
+ $T->Busy;
+ {
+ $DEMO_FILE = "$WIDTRIB/${demo}.pl" if -f "$WIDTRIB/${demo}.pl";
+ $DEMO_FILE = "$widget_lib/${demo}.pl" if -f "$widget_lib/${demo}.pl";
+ do $DEMO_FILE;
+ warn $@ if $@;
+ }
+ $T->Unbusy;
+ goto &$::AUTOLOAD if defined &$::AUTOLOAD;
+
+} # end AUTOLOAD
+
+sub build_about_dialog {
+
+ my $help = shift;
+
+ my $dialog = $MW->DialogBox(
+ -title => "Perl/Tk, based on Tcl/Tk ${Tk::version}.x",
+ -default_button => 'OK',
+ -buttons => ['OK'],
+ );
+ my $df = $dialog->add( 'Labelframe', -text => ' 2006 - Oct - 31 ' );
+ $df->pack( qw/ -fill both -expand 1 / );
+ my( $change ) = $Tk::CHANGE =~ /Change:\s+(.*)/;
+ my( $tk_date ) = scalar localtime( ( stat $Tk::library )[9] );
+ my( $tk ) = "$Tk::VERSION ($change), $tk_date";
+
+ foreach my $item (
+ [ 'Perl', "$], $Config{cf_time}" ],
+ [ 'Tk', $tk ],
+ [ 'Platform', $Tk::platform ],
+ [ 'Library', $Tk::library ],
+ ) {
+ my $l = $item->[0] . ':';
+ my $le = $df->LabEntry(
+ -font => $FONT,
+ -label => ' ' x (13 - length $l) . $l,
+ -labelPack => [qw/-side left -anchor w/],
+ -labelFont => 'Courier 12 bold',
+ -relief => 'flat',
+ -takefocus => 0,
+ -textvariable => $item->[1],
+ -width => 45,
+ );
+ $le->pack(qw/ -fill x -expand 1/);
+ $le->Subwidget( 'entry' )->bindtags( [ ] );
+ }
+
+ $help->cget(-menu)->entryconfigure('About',
+ -command => [$dialog => 'Show'],
+ );
+
+} # end build_about_dialog
+
+sub demos {
+
+ # Generate one demo section.
+
+ my ($title, @demos) = @_;
+
+ $T->insert('end', "\n", '', "$title\n", 'title');
+
+ for (my $n = 0; $n <= $#demos; $n += 2) {
+ $T->insert('end', $n / 2 + 1 . '. ' . $demos[$n + 1] . ".\n",
+ ['demo', 'demo-' . $demos[$n]]);
+ }
+
+} # end demos
+
+sub invoke {
+
+ # This procedure is called when the user clicks on a demo description.
+
+ my($text) = @_;
+
+ my $index = $text->index('current');
+ my @tags = $T->tagNames($index);
+ my $i = lsearch('demo\-.*', @tags);
+ return if $i < 0;
+ my($demo) = $tags[$i] =~ /demo-(.*)/;
+ $T->tagAdd('visited', "$index linestart", "$index lineend");
+ {
+ no strict 'refs';
+ $SIG{__WARN__} = sub {
+ print @_ unless $_[0] =~ /Subroutine \S+ redefined at/;
+ };
+ &$demo($demo);
+ }
+
+} # end invoke
+
+sub lsearch {
+
+ # Search the list using the supplied regular expression and return it's
+ # ordinal, or -1 if not found.
+
+ my($regexp, @list) = @_;
+ my($i);
+
+ for ($i=0; $i<=$#list; $i++) {
+ return $i if $list[$i] =~ /$regexp/;
+ }
+ return -1;
+
+} # end lsearch
+
+sub see_code {
+
+ # This procedure creates a toplevel window that displays the code for
+ # a demonstration and allows it to be edited and reinvoked.
+
+ my($demo) = @_;
+
+ my $file;
+ $file = ( $demo =~ /\.pl$/ ) ? $demo : "${demo}.pl";
+ if (not Exists $CODE) {
+ $CODE = $MW->Toplevel;
+ my $code_buttons = $CODE->Frame;
+ $code_buttons->pack(qw/-side bottom -fill x/);
+ my $code_buttons_dismiss = $code_buttons->Button(
+ -text => 'Dismiss',
+ -command => [$CODE => 'withdraw'],
+ );
+ $CODE_RERUN = $code_buttons->Button(-text => 'Rerun Demo');
+ $CODE_TEXT = $CODE->Scrolled('Text', qw/ -height 40 -scrollbars oe -font /, $MONOSPACE_FONT);
+ $code_buttons_dismiss->pack(qw/-side left -expand 1/);
+ $CODE_RERUN->pack(qw/-side left -expand 1/);
+ $CODE_TEXT->pack(qw/-side left -expand 1 -fill both/);
+ } else {
+ $CODE->deiconify;
+ $CODE->raise;
+ }
+ $CODE_RERUN->configure(-command => sub {
+ eval $CODE_TEXT->get(qw/1.0 end/);
+ {
+ no strict 'refs';
+ &$demo($demo);
+ }
+ });
+ $CODE->iconname($file);
+ $file = "$WIDTRIB/$file" if -f "$WIDTRIB/$file";
+ $file = "$widget_lib/$file" if -f "$widget_lib/$file";
+ $CODE->title("Demo code: $file");
+ $CODE_TEXT->delete(qw/1.0 end/);
+ open(CODE, "<$file") or warn "Cannot open demo file $file: $!";
+ {
+ local $/ = undef;
+ $CODE_TEXT->insert('1.0', <CODE>);
+ }
+ close CODE;
+ $CODE_TEXT->markSet(qw/insert 1.0/);
+ $CODE_TEXT->focus;
+
+} # end see_code
+
+sub see_vars {
+
+ # Create a top-level window that displays a bunch of global variable values
+ # and keeps the display up-to-date even when the variables change value.
+ # $args is a pointer to a list of list of 2:
+ #
+ # ["variable description", \$VAR]
+ #
+ # The old trick of passing a string to serve as the description and a soft
+ # reference to the variable no longer works with lexicals and use strict.
+
+ my($parent, $args) = @_;
+
+ $VARS->destroy if Exists($VARS);
+ $VARS = $parent->Toplevel;
+ $VARS->geometry('+300+300');
+ $VARS->title('Variable Values');
+ $VARS->iconname('Variables');
+
+ my $title = $VARS->Label(
+ -text => 'Variable Values:',
+ -width => 20,
+ -anchor => 'center',
+ -font => $LARGE_FONT,
+ );
+ $title->pack(qw/-side top -fill x/);
+ my($label, $var);
+ foreach my $i (@$args) {
+ ($label, $var) = @$i;
+ my $wf = $VARS->Frame->pack(qw/-anchor w/);
+ $wf->Label(-text => "$label: ")->pack(qw/-side left/);
+ $wf->Label(-textvariable => $var)->pack(qw/-side left/);
+ }
+ $VARS->Button(-text => 'OK', -command => [$VARS => 'destroy'])->
+ pack(qw/-side bottom -pady 2/);
+
+} # end see_vars
+
+sub show_stat {
+
+ # Display name of current demonstration. $sv is a reference to the
+ # status Label -textvariable, $text is the Text widget reference and
+ # $index is the demonstration index in the Text widget.
+
+ my($sv, $text, $index) = @_;
+
+ my @tags = $text->tagNames($index);
+ my $i = lsearch('demo\-.*', @tags);
+ return if $i < 0;
+ my($demo) = $tags[$i] =~ /demo-(.*)/;
+ $$sv = "Click Button-1 to run the \"$demo\" demonstration.";
+
+} # end show_stat
+
+sub view_widget {
+
+ # Expose a file's innards to the world too, but only for viewing.
+
+ my($widget) = @_;
+
+ if (not Exists $VIEW) {
+ $VIEW = $MW->Toplevel;
+ $VIEW->iconname('widget');
+ my $view_buttons = $VIEW->Frame;
+ $view_buttons->pack(qw/-side bottom -fill x/);
+ my $view_buttons_dismiss = $view_buttons->Button(
+ -text => 'Dismiss',
+ -command => [$VIEW => 'withdraw'],
+ );
+ $view_buttons_dismiss->pack(qw/-side left -expand 1/);
+ $VIEW_TEXT = $VIEW->Scrolled('Text', qw/ -height 40 -scrollbars oe /);
+ $VIEW_TEXT->pack(qw/-side left -expand 1 -fill both/);
+ } else {
+ $VIEW->deiconify;
+ $VIEW->raise;
+ }
+ $VIEW->title("Demo code: $widget");
+ $VIEW_TEXT->configure(qw/-state normal/);
+ $VIEW_TEXT->delete(qw/1.0 end/);
+ open(VIEW, "<$widget") or warn "Cannot open demo file $widget: $!";
+ {
+ local $/ = undef;
+ $VIEW_TEXT->insert('1.0', <VIEW>);
+ }
+ close VIEW;
+ $VIEW_TEXT->markSet(qw/insert 1.0/);
+ $VIEW_TEXT->configure(qw/-state disabled/);
+
+} # end view_widget
+
+=head1 NAME
+
+widget - Demonstration of Perl/Tk widgets
+
+=head1 SYNOPSYS
+
+ widget [ directory ]
+
+=head1 DESCRIPTION
+
+This script demonstrates the various widgets provided by Tk, along with
+many of the features of the Tk toolkit. This file only contains code to
+generate the main window for the application, which invokes individual
+demonstrations. The code for the actual demonstrations is contained in
+separate ".pl" files in the "widget_lib" directory, which are autoloaded
+by this script as needed.
+
+widget looks in the directory specified on the command line to load user
+contributed demonstrations. If no directory name is specified when widget is
+invoked and the environment variable WIDTRIB is defined then demonstrations
+are loaded from the WIDTRIB directory. If WIDTRIB is undefined then widget
+defaults to the released user contributed directory, "widtrib".
+
+=head2 History
+
+ #
+ # Stephen O. Lidie, LUCC, 96/03/11. lusol@Lehigh.EDU
+ # Stephen O. Lidie, LUCC, 97/01/01. lusol@Lehigh.EDU
+ # Stephen O. Lidie, LUCC, 97/02/11. lusol@Lehigh.EDU
+ # Stephen O. Lidie, LUCC, 97/06/07. lusol@Lehigh.EDU
+ # Update for Tk402.00x. Total revamp: WidgetDemo, Scrolled, released
+ # composites, -menuitems, qw//, etcetera. Perl 5.004 required.
+ # Stephen O. Lidie, LUCC, 98/03/10. lusol@Lehigh.EDU
+ # Update for Tk8.
+ # Stephen O. Lidie, LUCC, 98/06/26. Stephen.O.Lidie@Lehigh.EDU
+ # Add Common Dialogs for Tk800.007.
+ # Stephen.O.Lidie@Lehigh.EDU, 1999/11/29, Lehigh University.
+ # Demo some "dash patch" changes.
+ # Stephen.O.Lidie@Lehigh.EDU, 2000/01/11, Lehigh University.
+ # Update menubar to Tk 8, fix color palette Menubutton demo.
+ # Stephen.O.Lidie@Lehigh.EDU, 2000/07/06, Lehigh University.
+ # Remove inswt() from widget and styles.pl to show the proper Perl/Tk
+ # idiom for inserting Text tags. Various and sundry cleanups.
+ # sol0@lehigh.edu, 2003/07/29, Lehigh University Computing Center.
+ # Update for Tk 8.4.4.
+
+=head1 AUTHOR
+
+Steve Lidie <sol0@Lehigh.EDU>
+
+=cut
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