[ViewVC] Diff of: cvs/CV/bin/cv

Comparing CV/bin/cv (file contents):
Revision 1.39 by root, Sun May 1 05:53:40 2005 UTC vs.
Revision 1.76 by root, Sat Mar 15 11:02:17 2008 UTC

…		…
1	#!/opt/bin/perl	1	#!/opt/bin/perl
2		2
3	use Cwd ();	3	use Cwd ();
4	use Encode ();	4	use Encode ();
		5	use File::Glob ();
5		6
6	use Gtk2 -init;	7	use Gtk2 -init;
7	use Gtk2::Gdk::Keysyms;	8	use Gtk2::Gdk::Keysyms;
8		9
		10	use Gtk2::CV;
		11
9	use Gtk2::CV::ImageWindow;	12	use Gtk2::CV::ImageWindow;
10	use Gtk2::CV::Schnauzer;	13	use Gtk2::CV::Schnauzer;
11		14
12	use Gtk2::CV;	15	BEGIN {
		16	require Gtk2::CV::Plugin;
		17	require "$ENV{HOME}/.cvrc" if -r "$ENV{HOME}/.cvrc";
		18	}
		19
		20	use Gtk2::CV::Plugin::NameCluster;
		21	use Gtk2::CV::Plugin::RCluster;
13		22
14	Gtk2::Rc->parse (Gtk2::CV::find_rcfile "gtkrc");	23	Gtk2::Rc->parse (Gtk2::CV::find_rcfile "gtkrc");
15		24
16	use File::Spec;	25	use File::Spec;
17		26
18	my $mainwin;	27	my $mainwin;
19	my $viewer;	28	my $viewer;
		29	my $viewer_count;
20	my $schnauzer;	30	my $schnauzer;
21	my $info;	31	my $info;
22	my $help;	32	my $help;
23		33
24	my $schnauzer_idx = 0;	34	my $schnauzer_idx = 0;
27	my $s = new Gtk2::CV::Schnauzer;	37	my $s = new Gtk2::CV::Schnauzer;
28		38
29	$s->signal_connect_after (key_press_event => \&std_keys);	39	$s->signal_connect_after (key_press_event => \&std_keys);
30	$s->signal_connect (activate => sub {	40	$s->signal_connect (activate => sub {
31	my $label = sprintf "%s (%d)",	41	my $label = sprintf "%s (%d)",
32	(File::Spec->splitpath ($_[1]))[2],	42	(Glib::filename_display_name +(File::Spec->splitpath ($_[1]))[2]),
33	-s $_[1];	43	-s $_[1];
34	$info->set_label ($label);	44	$info->set_label ($label);
35	$viewer->load_image ($_[1]);	45	$viewer->load_image ($_[1]) if $viewer; # TODO: error, or chose ANY viewer
36	});	46	});
		47
		48	Gtk2::CV::Plugin->call (new_schnauzer => $s);
		49
		50	$s
		51	}
		52
		53	sub new_viewer {
		54	my $self = new Gtk2::CV::ImageWindow;
		55
		56	$viewer_count++;
		57
		58	$self->set_title ("CV: Image");
		59
37	$s->signal_connect (chdir => sub {	60	$self->signal_connect (key_press_event => sub {
38	my ($self, $dir) = @_;	61	$viewer = $_[0];
39		62
40	my $path = Cwd::abs_path $dir;	63	my $key = $_[1]->keyval;
		64	my $state = $_[1]->state;
41		65
42	$self->realize;	66	if ($state * "control-mask" && $key == $Gtk2::Gdk::Keysyms{c}) {
43	$self->window->property_change (	67	my $viewer = new_viewer ();
44	Gtk2::Gdk::Atom->intern ("_X_CWD", 0),	68	$viewer->set_image ($_[0]->{image});
45	Gtk2::Gdk::Atom->intern ("UTF8_STRING", 0),	69	$viewer->show_all;
46	Gtk2::Gdk::CHARS, 'replace',	70	1
47	Encode::encode_utf8 $path,	71	} else {
		72	&std_keys
		73	or $schnauzer->signal_emit (key_press_event => $_[1])
48	);	74	}
49	});	75	});
		76	$self->signal_connect (delete_event => sub { $_[0]->destroy; 0 });
		77	$self->signal_connect (destroy => sub {
		78	$viewer = undef if $viewer == $_[0];
50		79
51	$s;	80	main_quit Gtk2 unless --$viewer_count;
		81
		82	0
		83	});
		84
		85	$self->signal_connect (button3_press_event => sub {
		86	$mainwin->visible
		87	? $mainwin->hide
		88	: $mainwin->show_all;
		89
		90	1
		91	});
		92
		93	Gtk2::CV::Plugin->call (new_imagewindow => $self);
		94
		95	$self
52	}	96	}
53		97
54	sub std_keys {	98	sub std_keys {
55	my $key = $_[1]->keyval;	99	my $key = $_[1]->keyval;
56	my $state = $_[1]->state;	100	my $state = $_[1]->state;
57		101
58	my $ctrl = $state * "control-mask";	102	my $ctrl = $state * "control-mask";
59		103
60	if ($key == $Gtk2::Gdk::Keysyms{q}) {	104	if ($key == $Gtk2::Gdk::Keysyms{q}) {
61	main_quit Gtk2;	105	$viewer->destroy;
62	} elsif ($ctrl && $key == $Gtk2::Gdk::Keysyms{v}) {	106	} elsif ($ctrl && $key == $Gtk2::Gdk::Keysyms{v}) {
63	my $w = new Gtk2::Window;	107	my $w = new Gtk2::Window;
64		108
		109	$w->set_role ("schnauzer");
65	$w->set_title ("CV: Schnauzer");	110	$w->set_title ("CV: Schnauzer");
66	$w->add (my $s = new_schnauzer);	111	$w->add (my $s = new_schnauzer);
67	$s->set_dir (File::Spec->curdir);	112	$s->set_dir (File::Spec->curdir);
68	$s->set_geometry_hints;	113	$s->set_geometry_hints;
69	$w->show_all;	114	$w->show_all;
70		115
71	} elsif ($ctrl && $key == $Gtk2::Gdk::Keysyms{h}) {	116	} elsif ($ctrl && $key == $Gtk2::Gdk::Keysyms{h}) {
72	unless ($help) {	117	unless ($help) {
73	require Gtk2::PodViewer;	118	require Gtk2::Ex::PodViewer;
74		119
75	$help = new Gtk2::Window;	120	$help = new Gtk2::Window;
		121	$help->set_role ("help");
76	$help->set_title ("CV: Help");	122	$help->set_title ("CV: Help");
77	$help->set_default_size (500, 300);	123	$help->set_default_size (500, 300);
78	$help->signal_connect (delete_event => sub { $help->hide; 1 });	124	$help->signal_connect (delete_event => sub { $help->hide; 1 });
79		125
80	$help->add (my $sw = new Gtk2::ScrolledWindow);	126	$help->add (my $sw = new Gtk2::ScrolledWindow);
81	$sw->add (my $h = new Gtk2::PodViewer);	127	$sw->add (my $h = new Gtk2::Ex::PodViewer);
82		128
83	#binmode DATA, ":utf8";	129	#binmode DATA, ":utf8";
84	$h->load_string (do { local $/; <DATA> });	130	$h->load_string (do { local $/; <DATA> });
85	}	131	}
86		132
87	$help->show_all;	133	$help->show_all;
88	} else {	134	} else {
89	#$mainwin->show_all;	135	return 0;
90	$schnauzer->handle_key ($key, $state);
91	}	136	}
92		137
93	1;	138	1
94	}	139	}
95		140
96	{	141	{
97	$viewer = new Gtk2::CV::ImageWindow;	142	$viewer = new_viewer;
98		143	$::cur_viewer = $viewer;
99	$viewer->set_title ("CV: Image");
100
101	$viewer->signal_connect (key_press_event => \&std_keys);
102	$viewer->signal_connect (delete_event => sub { main_quit Gtk2 });
103
104	$viewer->signal_connect (button3_press_event => sub {
105	$mainwin->visible
106	? $mainwin->hide
107	: $mainwin->show_all;
108	1;
109	});
110		144
111	$schnauzer = new_schnauzer;	145	$schnauzer = new_schnauzer;
112		146
113	$mainwin = new Gtk2::Window;	147	$mainwin = new Gtk2::Window;
		148	$mainwin->set_role ("main");
114	$mainwin->set_title ("CV");	149	$mainwin->set_title ("CV");
115	$mainwin->add (my $vbox = new Gtk2::VBox);	150	$mainwin->add (my $vbox = new Gtk2::VBox);
116	$mainwin->signal_connect (delete_event => sub { $mainwin->hide; 1; });	151	$mainwin->signal_connect (delete_event => sub { $mainwin->hide; 1 });
117		152
118	$vbox->add ($schnauzer);	153	$vbox->add ($schnauzer);
119	$vbox->pack_end (my $frame = new Gtk2::Frame, 0, 0, 0);	154	$vbox->pack_end (my $frame = new Gtk2::Frame, 0, 0, 0);
120	$frame->add (my $hbox = new Gtk2::HBox 0, 0);	155	$frame->add (my $hbox = new Gtk2::HBox 0, 0);
121	$hbox->pack_start ((new Gtk2::Label "Info"), 0, 0, 0);	156	$hbox->pack_start ((new Gtk2::Label "Info: "), 0, 0, 0);
122	$hbox->pack_start (($info = new Gtk2::Label), 1, 1, 0);	157	$hbox->pack_end (my $labelwindow = new Gtk2::EventBox, 1, 1, 0);
123	$info->set (wrap => 1);	158	$labelwindow->add ($info = new Gtk2::Label);
		159	$labelwindow->signal_connect_after (size_request => sub { $_[1]->width (0); 0 });
		160	$info->set (selectable => 1, xalign => 0, justify => "left");
124		161
125	$schnauzer->set_geometry_hints;	162	$schnauzer->set_geometry_hints;
126	}	163	}
127		164
128	if (@ARGV) {	165	if (@ARGV) {
129	$schnauzer->set_paths ([map Glib::filename_to_unicode $_, @ARGV]);	166	my $show_first = sub {
130	$schnauzer->show_all;	167	$schnauzer->show_all;
131	$schnauzer->handle_key ($Gtk2::Gdk::Keysyms{space}, []);	168	$schnauzer->handle_key ($Gtk2::Gdk::Keysyms{space}, []);
		169	$viewer->show_all;
		170	};
		171
		172	if (@ARGV == 1 && $ARGV[0] eq "-0r") {
		173	local $/;
		174	$schnauzer->set_paths ([split /\x00/, <STDIN>], 1, $show_first);
		175	} elsif (@ARGV == 1 && -d $ARGV[0]) {
		176	$schnauzer->set_dir (shift, $show_first);
		177	} else {
		178	if ($ARGV[0] eq "-g") {
		179	shift @ARGV;
		180	@ARGV = map +(File::Glob::bsd_glob $_, File::Glob::GLOB_BRACE \| File::Glob::GLOB_QUOTE), @ARGV;
		181	}
		182	$schnauzer->set_paths ([@ARGV], 1, $show_first);
		183	}
132	} else {	184	} else {
133	$schnauzer->set_dir (File::Spec->curdir);	185	$schnauzer->set_dir (File::Spec->curdir, sub {
134	$mainwin->show_all;	186	$mainwin->show_all;
135	$viewer->show_all;	187	$viewer->show_all;
		188	});
136	}	189	}
137
138	$viewer->show_all;
139		190
140	main Gtk2;	191	main Gtk2;
141		192
		193	Gtk2::CV::flush_aio;
		194
142	__DATA__	195	__DATA__
143		196
		197	=encoding utf-8
		198
144	=head1 NAME	199	=head1 NAME
145		200
146	cv - a fast gtk+ image viewer modeled after xv	201	cv - a fast gtk+ image viewer loosely modeled after XV
147		202
148	=head1 SYNOPSIS	203	=head1 SYNOPSIS
149		204
150	cv [file...]	205	cv [file...]
151		206
		207	=head1 FEATURES
		208
		209	CV is supposed to work similar to the venerable XV image viewer, just
		210	faster. Why faster?
		211
		212	=over 4
		213
		214	=item * optimized directory scanning algorithm
		215
		216	The directory scanning in CV uses some tricks that - on most modern
		217	filesystems - makes it possible to detect filetypes faster than stat()'ing
		218	every file. This makes CV suitable for directories with lots of files
		219	(10000+).
		220
		221	This algorithm is quite unprecise - it doesn't make a difference between
		222	files, device nodes, symlinks and the like, and filetype detection is done
		223	using the file extension only.
		224
		225	On the positive side, it is usually many orders of magnitude faster than
		226	traditional scanning techniques (good for directories with 10000 or
		227	100000+ files).
		228
		229	=item * queuing for all time-consuming background tasks
		230
		231	All tasks, such as unlinking files or generating thumbnails, that can be
		232	done in the background will be done so - no waiting required, even when
		233	changing directories.
		234
		235	=item * use of asynchronous I/O
		236
		237	CV tries to use asynchronous I/O whereever it makes sense, for example
		238	while scanning directories, waiting for stat data, unlinking files or
		239	generating thumbnails. This usually decreases scanning times for large
		240	directories a bit (especially on RAID devices and over NFS) and makes CV
		241	much more interactive.
		242
		243	=item * fast image loading
		244
		245	The time span between the user issuing a command and displaying the new
		246	image should be as small as possible. CV uses optimized (especially
		247	for JPEG) loading functions and sacrifices some quality (e.g no gamma
		248	correction, although this might change) to achieve this speed.
		249
		250	=item * fast thumbnail creation
		251
		252	Thumbnail creation uses both CPU and Disk-I/O. CV interleaves both, so
		253	on modern CPUs, thumbnailing is usually limited by I/O speed. Thumbnail
		254	creation for JPEGs has been specially optimized and can even take
		255	advantage of multiple CPUs.
		256
		257	=item * minimum optical clutter
		258
		259	CV has no menus or other user interface elements that take up a lot of
		260	screen space (or are useful for beginning users). The schnauzer windows
		261	can also be somewhat crowded.
		262
		263	The point of an image viewer is viewing images, not a nice GUI. This is
		264	similar to XV's behaviour.
		265
		266	=item * efficient (and hard to learn) user interface
		267
		268	CV uses key combinations. A lot. If you are an experienced XV user, you
		269	will find most of these keys familiar. If not, CV might be hard to use at
		270	first, but will be an efficient tool later.
		271
		272	=item * multi-window GUI
		273
		274	CV doesn't force you to use a specific layout, instead it relies on your
		275	window manager, thus enabling you to chose whatever layout that suits you
		276	most.
		277
		278	=item * i18n'ed filename handling throughout
		279
		280	As long as glib can recognize your filename encoding (either UTF-8 or
		281	locale-specific, depending on the setting of G_BROKEN_FILENAMES) and you
		282	have the relevant fonts, CV will display your filenames correctly.
		283
		284	=item * extensible through plug-ins
		285
		286	I have weird plug-ins that access remote databases to find a
		287	directory. This is not likely to be of any use to other people. Likewise,
		288	others might have weird requirements I cannot dream of.
		289
		290	=item * filename clustering
		291
		292	Among the standard plug-ins is a filename clustering plug-in, that (in
		293	case of tens of thousands images in one directory) might be able to
		294	cluster similar names together.
		295
		296	=back
		297
152	=head1 DESCRIPTION	298	=head1 DESCRIPTION
153		299
154	None yet.
155
156	=head2 THE IMAGE WINDOW	300	=head2 THE IMAGE WINDOW
157		301
158	You can use the following keys in the image window:	302	You can use the following keys in the image window:
159		303
160	q quit the program	304	q quit the program
161	< half the image size	305	< half the image size
162	> double the image size	306	> double the image size
163	, shrink the image by 10%	307	, shrink the image by 10%
164	. enlarge the image by 10%	308	. enlarge the image by 10%
165	n reset to normal size	309	n reset to normal size
166	m maximize to screensize	310	m maximize to screensize
167	M maxime to screensize, respecting image aspect	311	M maximize to screensize, respecting image aspect
168	ctrl-m toggle maxpect-always mode	312	ctrl-m toggle maxpect-always mode
		313	ctrl-sift-m toggle using current image size as max image size
169	u uncrop	314	u uncrop
170	r set scaling mode to 'nearest' (fastest)	315	r set scaling mode to 'nearest' (fastest)
171	s set scaling mode to 'bilinear' (default)	316	s set scaling mode to 'bilinear' (default)
172	S set scaling mode to 'hyper' (slowest)	317	shift-s set scaling mode to 'hyper' (slowest)
173	t rotate clockwise 90°	318	t rotate clockwise 90°
174	T rotate counterclockwise°	319	T rotate counterclockwise°
		320	a apply all rotations loslessly to a jpeg file (using exiftran)
175	ctrl-v open a new visual schnauzer window for the current dir	321	ctrl-v open a new visual schnauzer window for the current dir
176	ctrl-s rescan visual schnauzer files for updates/deletes etc.	322	ctrl-c clone the current image window
177	ctrl-e run an editor ($CV_EDITOR or "gimp") on the current image.	323	ctrl-e run an editor ($CV_EDITOR or "gimp") on the current image
		324	ctrl-p fire up the print dialog
		325	escape cancel a crop action
178		326
179	And when playing movies, these additional keys are active:	327	And when playing movies, these additional keys are active:
180		328
181	left rewind by 10 seconds	329	left rewind by 10 seconds
182	right forward by 10 seconds	330	right forward by 10 seconds
183	down rewind by 60 seconds	331	down rewind by 60 seconds
184	up forward by 60 seconds	332	up forward by 60 seconds
185	pg_up rewind by 600 seconds	333	pg_up rewind by 600 seconds
186	pg_down forward by 600 seconds	334	pg_down forward by 600 seconds
187	o toggle on-screen display	335	o toggle on-screen display
188	p pause/unpause	336	p pause/unpause
189	escape stop playing	337	escape stop playing
190	9 turn volume down	338	9 turn volume down
191	0 turn volume up	339	0 turn volume up
192		340
193	The following keys are redirected to the default visual schnauzer window:	341	Any other keys will be sent to the default schnauzer window, which can be
		342	toggled on and off by right-clicking into the image window.
194		343
195	space next image	344	Left-clicking into the image window will let you crop the image (usually
196	backspace last image	345	to zoom into large images that CV scales down).
197		346
198	=head2 THE VISUAL SCHNAUZER	347	=head2 THE VISUAL SCHNAUZER
199		348
		349	Any image-loading action in a schnauzer window acts on the
		350	"last-recently-activated" imagewindow, which currently is simply the last
		351	image window that received a keypress.
		352
200	You can use the following keys in the schnauzer window:	353	You can use the following keys in the schnauzer window:
201		354
		355	ctrl-space,
202	space move to and display next image	356	space move to and display next image
		357	ctrl-backspace,
203	backspace move to and display previous image	358	backspace move to and display previous image
		359	ctrl-return,
204	return display selected picture	360	return display selected picture, or enter directory
205		361
206	cursor keys move selection	362	cursor keys move selection
207	page-up move one page up	363	page-up move one page up
208	page-down move one page down	364	page-down move one page down
209	home move to first file	365	home move to first file
210	end move to last file	366	end move to last file
211		367
		368	ctrl-a select all files
		369	ctrl-shift-a select all files currently displayed in the schnauzer window
212	ctrl-d delete selected files WITHOUT ASKING AGAIN	370	ctrl-d delete selected files WITHOUT ASKING AGAIN
213	ctrl-g generate icons for the selected files	371	ctrl-g force generation of thumbnais for the selected files
		372	ctrl-s rescan current direcory or files updates/deletes etc.
214	ctrl-u update selected (or all) icons if neccessary	373	ctrl-u update selected (or all) icons if neccessary
215	ctrl-a select all files	374	ctrl-- unselected thumbnailed images
		375	ctrl-+ keep only thumbnailed images, deselect others
		376
		377	^ go to parent directory (caret).
		378
		379	0-9,
		380	a-z find the first filename beginning with this letter
		381
		382	Right-clicking into the schnauzer window displays a pop-up menu with
		383	additional actions.
		384
		385	=head3 SELECTION
		386
		387	You can select entries in the Schnauzer in a variety of ways:
		388
		389	=over 4
		390
		391	=item Keyboard
		392
		393	Moving the cursor with the keyboard will first deselect all files and then
		394	select the file you moved to.
		395
		396	=item Clicking
		397
		398	Clicking on an entry will select the one you clicked and deselect all
		399	others.
		400
		401	=item Shift-Clicking
		402
		403	Shift-clicking will toggle the selection on the entry under the mouse.
		404
		405	=item Dragging
		406
		407	Dragging will select all entries between the one selected when pushing the
		408	button and the one selected when releasing the button. If you move above
		409	or below the schnauzer area while drag-selecting, the schnauzer will move
		410	up/down one row twice per second. In addition, horizontal mouse movement
		411	acts as a kind of invisible horizontal scrollbar.
		412
		413	=item Hint: double-click works while click-selecting
		414
		415	You can double-click any image while click-selecting to display it
		416	without stopping the selection process. This will act as if you normally
		417	double-clicked the image to display it, and will toggle the selection
		418	twice, resulting in no change.
		419
		420	=back
		421
		422	=head1 FILES
		423
		424	When starting, CV runs the F<.cvrc> file in your F<$HOME> directory as if
		425	it were a perl script. in that, you will mostly load plug-ins.
		426
		427	Example:
		428
		429	system "fping -q -t 10 ether"
		430	or require "/fs/cv/cvplugin.pl";
		431
		432	This will load a plug-in, but only if the machine I<ether> is reachable
		433	(supposedly the plug-in is networked in some way :).
216		434
217	=head1 ENVIRONMENT	435	=head1 ENVIRONMENT
218		436
219	=over 4	437	=over 4
220		438
221	=item CV_EDITOR	439	=item CV_EDITOR
222		440
223	The program that gets executed when the user presses C<CTRL-e> in the	441	The program that gets executed when the user presses C<CTRL-e> in the
224	Schnauzer or image window. The default is C<gimp>.	442	Schnauzer or image window. The default is C<gimp>.
225		443
		444	=item CV_AUDIO_PLAYER
		445
		446	Program used to play all sorts of audio (wav, aif, mp3, ogg...), default "play".
		447	Will be called like C<< $CV_AUDIO_PLAYER -- <path> >>.
		448
226	=item CV_PRINT_DESTINATION	449	=item CV_PRINT_DESTINATION
227		450
228	The default (perl-style) destination to use in the print dialog.	451	The default (perl-style) destination to use in the print dialog.
229		452
230	=item CV_TRASHCAN	453	=item CV_TRASHCAN
…		…
234		457
235	=back	458	=back
236		459
237	=head1 SECURITY CONSIDERATIONS	460	=head1 SECURITY CONSIDERATIONS
238		461
239	CV uses Pixbuf to load images. Pixbuf is not considered safe for this	462	CV uses Pixbuf to load non-JPEG images. Pixbuf is not considered safe for
240	purpose, though (from the gtk-2.2 release notes):	463	this purpose, though (from the gtk-2.2 release notes):
241		464
242	"While efforts have been made to make gdk-pixbuf robust against invalid	465	"While efforts have been made to make gdk-pixbuf robust against invalid
243	images, using gdk-pixbuf to load untrusted data is not recommended, due to	466	images, using gdk-pixbuf to load untrusted data is not recommended, due to
244	the likelyhood that there are additional problems where an invalid image	467	the likelyhood that there are additional problems where an invalid image
245	could cause gdk-pixbuf to crash or worse."	468	could cause gdk-pixbuf to crash or worse."
246		469
247	=head1 BUGS/TODO	470	=head1 BUGS/TODO
248		471
		472	Lots of functionality is missing.
		473
249	Pixbuf doesn't honor G_BROKEN_FILENAMES, so accessing files with names	474	Pixbuf doesn't always honor G_BROKEN_FILENAMES, so accessing files with
250	incompatible with utf-8 fails.	475	names incompatible with utf-8 might fail.
251		476
252	rotate on disk	477	rotate on disk
253	print
254	lots of ui issues	478	lots of ui issues
255	save(?)	479	save(?)
256	preferences	480	preferences
257	ctrl-u in schnauzer
258	shift-cursor in schnauzer
259		481
260	=head1 AUTHOR	482	=head1 AUTHOR
261		483
262	Marc Lehmann <cv@plan9.de>.	484	Marc Lehmann <cv@plan9.de>.
263		485

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Comparing CV/bin/cv (file contents): Revision 1.39 by root, Sun May 1 05:53:40 2005 UTC vs. Revision 1.76 by root, Sat Mar 15 11:02:17 2008 UTC

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Comparing CV/bin/cv (file contents):
Revision 1.39 by root, Sun May 1 05:53:40 2005 UTC vs.
Revision 1.76 by root, Sat Mar 15 11:02:17 2008 UTC