[ViewVC] Diff of: cvs/rxvt-unicode/src/urxvt.pm

Comparing rxvt-unicode/src/urxvt.pm (file contents):
Revision 1.7 by root, Mon Jan 2 19:05:05 2006 UTC vs.
Revision 1.44 by root, Sat Jan 7 19:29:17 2006 UTC

…		…
		1	=encoding utf8
		2
1	=head1 NAME	3	=head1 NAME
2		4
3	rxvtperl - rxvt-unicode's embedded perl interpreter	5	@@RXVT_NAME@@perl - rxvt-unicode's embedded perl interpreter
4		6
5	=head1 SYNOPSIS	7	=head1 SYNOPSIS
6		8
7	* Put your scripts into F<@@RXVT_LIBDIR@@/urxvt/perl-ext/>, they will be loaded automatically.	9	# create a file grab_test in $HOME:
8
9	* Scripts are evaluated in a 'use strict' and 'use utf8' environment, and
10	thus must be encoded as UTF-8.
11		10
12	sub on_sel_grab {	11	sub on_sel_grab {
13	warn "you selected ", $_[0]->selection;	12	warn "you selected ", $_[0]->selection;
14	()	13	()
15	}	14	}
16		15
17	1	16	# start a @@RXVT_NAME@@ using it:
		17
		18	@@RXVT_NAME@@ --perl-lib $HOME -pe grab_test
18		19
19	=head1 DESCRIPTION	20	=head1 DESCRIPTION
20		21
21	On startup, @@RXVT_NAME@@ will scan F<@@RXVT_LIBDIR@@/urxvt/perl-ext/>	22	Everytime a terminal object gets created, extension scripts specified via
22	for files and will load them. Everytime a terminal object gets created,	23	the C<perl> resource are loaded and associated with it.
23	the directory specified by the C<perl-lib> resource will be additionally	24
24	scanned.	25	Scripts are compiled in a 'use strict' and 'use utf8' environment, and
		26	thus must be encoded as UTF-8.
25		27
26	Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where	28	Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where
27	scripts will be shared for all terminals.	29	scripts will be shared (but not enabled) for all terminals.
28		30
29	Hooks in scripts specified by C<perl-lib> will only be called for the	31	=head2 Prepackaged Extensions
30	terminals created with that specific option value.	32
		33	This section describes the extensiosn delivered with this version. You can
		34	find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.
		35
		36	You can activate them like this:
		37
		38	@@RXVT_NAME@@ -pe <extensionname>
		39
		40	=over 4
		41
		42	=item selection
		43
		44	Intelligent selection. This extension tries to be more intelligent when
		45	the user extends selections (double-click). Right now, it tries to select
		46	urls and complete shell-quoted arguments, which is very convenient, too,
		47	if your F<ls> supports C<--quoting-style=shell>.
		48
		49	It also offers the following bindable event:
		50
		51	=over 4
		52
		53	=item rot13
		54
		55	Rot-13 the selection when activated. Used via keyboard trigger:
		56
		57	URxvt.keysym.C-M-r: perl:selection:rot13
		58
		59	=back
		60
		61	=item digital-clock
		62
		63	Displays a digital clock using the built-in overlay.
		64
		65	=item mark-urls
		66
		67	Uses per-line display filtering (C<on_line_update>) to underline urls.
		68
		69	=item block-graphics-to-ascii
		70
		71	A not very useful example of filtering all text output to the terminal,
		72	by replacing all line-drawing characters (U+2500 .. U+259F) by a
		73	similar-looking ascii character.
		74
		75	=item example-refresh-hooks
		76
		77	Displays a very simple digital clock in the upper right corner of the
		78	window. Illustrates overwriting the refresh callbacks to create your own
		79	overlays or changes.
		80
		81	=back
31		82
32	=head2 General API Considerations	83	=head2 General API Considerations
33		84
34	All objects (such as terminals, time watchers etc.) are typical	85	All objects (such as terminals, time watchers etc.) are typical
35	reference-to-hash objects. The hash can be used to store anything you	86	reference-to-hash objects. The hash can be used to store anything you
36	like. All members starting with an underscore (such as C<_ptr> or	87	like. All members starting with an underscore (such as C<_ptr> or
37	C<_hook>) are reserved for internal uses and must not be accessed or	88	C<_hook>) are reserved for internal uses and B<MUST NOT> be accessed or
38	modified).	89	modified).
39		90
40	When objects are destroyed on the C++ side, the perl object hashes are	91	When objects are destroyed on the C++ side, the perl object hashes are
41	emptied, so its best to store related objects such as time watchers and	92	emptied, so its best to store related objects such as time watchers and
42	the like inside the terminal object so they get destroyed as soon as the	93	the like inside the terminal object so they get destroyed as soon as the
43	terminal is destroyed.	94	terminal is destroyed.
44		95
		96	Argument names also often indicate the type of a parameter. Here are some
		97	hints on what they mean:
		98
		99	=over 4
		100
		101	=item $text
		102
		103	Rxvt-unicodes special way of encoding text, where one "unicode" character
		104	always represents one screen cell. See L<row_t> for a discussion of this format.
		105
		106	=item $string
		107
		108	A perl text string, with an emphasis on I<text>. It can store all unicode
		109	characters and is to be distinguished with text encoded in a specific
		110	encoding (often locale-specific) and binary data.
		111
		112	=item $octets
		113
		114	Either binary data or - more common - a text string encoded in a
		115	locale-specific way.
		116
		117	=back
		118
45	=head2 Hooks	119	=head2 Hooks
46		120
47	The following subroutines can be declared in loaded scripts, and will be called	121	The following subroutines can be declared in extension files, and will be
48	whenever the relevant event happens.	122	called whenever the relevant event happens.
		123
		124	The first argument passed to them is an object private to each terminal
		125	and extension package. You can call all C<urxvt::term> methods on it, but
		126	its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
		127	object that is shared between all packages is stored in the C<term>
		128	member. It is, however, blessed intot he package of the extension script,
		129	so for all practical purposes you can treat an extension script as a class.
49		130
50	All of them must return a boolean value. If it is true, then the event	131	All of them must return a boolean value. If it is true, then the event
51	counts as being I<consumed>, and the invocation of other hooks is skipped,	132	counts as being I<consumed>, and the invocation of other hooks is skipped,
52	and the relevant action might not be carried out by the C++ code.	133	and the relevant action might not be carried out by the C++ code.
53		134
56	=over 4	137	=over 4
57		138
58	=item on_init $term	139	=item on_init $term
59		140
60	Called after a new terminal object has been initialized, but before	141	Called after a new terminal object has been initialized, but before
61	windows are created or the command gets run.	142	windows are created or the command gets run. Most methods are unsafe to
		143	call or deliver senseless data, as terminal size and other characteristics
		144	have not yet been determined. You can safely query and change resources,
		145	though.
62		146
63	=item on_reset $term	147	=item on_reset $term
64		148
65	Called after the screen is "reset" for any reason, such as resizing or	149	Called after the screen is "reset" for any reason, such as resizing or
66	control sequences. Here is where you can react on changes to size-related	150	control sequences. Here is where you can react on changes to size-related
…		…
86	requested from the server. The selection text can be queried and changed	170	requested from the server. The selection text can be queried and changed
87	by calling C<< $term->selection >>.	171	by calling C<< $term->selection >>.
88		172
89	Returning a true value aborts selection grabbing. It will still be hilighted.	173	Returning a true value aborts selection grabbing. It will still be hilighted.
90		174
		175	=item on_sel_extend $term
		176
		177	Called whenever the user tries to extend the selection (e.g. with a double
		178	click) and is either supposed to return false (normal operation), or
		179	should extend the selection itelf and return true to suppress the built-in
		180	processing.
		181
		182	See the F<selection> example extension.
		183
91	=item on_focus_in $term	184	=item on_focus_in $term
92		185
93	Called whenever the window gets the keyboard focus, before urxvt does	186	Called whenever the window gets the keyboard focus, before urxvt does
94	focus in processing.	187	focus in processing.
95		188
…		…
115	number of lines that will be in the scrollback buffer.	208	number of lines that will be in the scrollback buffer.
116		209
117	=item on_tty_activity $term NYI	210	=item on_tty_activity $term NYI
118		211
119	Called whenever the program(s) running in the urxvt window send output.	212	Called whenever the program(s) running in the urxvt window send output.
		213
		214	=item on_osc_seq $term, $string
		215
		216	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
		217	operating system command) is processed. Cursor position and other state
		218	information is up-to-date when this happens. For interoperability, the
		219	string should start with the extension name and a colon, to distinguish
		220	it from commands for other extensions, and this might be enforced in the
		221	future.
		222
		223	Be careful not ever to trust (in a security sense) the data you receive,
		224	as its source can not easily be controleld (e-mail content, messages from
		225	other users on the same system etc.).
		226
		227	=item on_add_lines $term, $string
		228
		229	Called whenever text is about to be output, with the text as argument. You
		230	can filter/change and output the text yourself by returning a true value
		231	and calling C<< $term->scr_add_lines >> yourself. Please note that this
		232	might be very slow, however, as your hook is called for B<all> text being
		233	output.
		234
		235	=item on_line_update $term, $row
		236
		237	Called whenever a line was updated or changed. Can be used to filter
		238	screen output (e.g. underline urls or other useless stuff). Only lines
		239	that are being shown will be filtered, and, due to performance reasons,
		240	not always immediately.
		241
		242	The row number is always the topmost row of the line if the line spans
		243	multiple rows.
		244
		245	Please note that, if you change the line, then the hook might get called
		246	later with the already-modified line (e.g. if unrelated parts change), so
		247	you cannot just toggle rendition bits, but only set them.
120		248
121	=item on_refresh_begin $term	249	=item on_refresh_begin $term
122		250
123	Called just before the screen gets redrawn. Can be used for overlay	251	Called just before the screen gets redrawn. Can be used for overlay
124	or similar effects by modify terminal contents in refresh_begin, and	252	or similar effects by modify terminal contents in refresh_begin, and
…		…
127		255
128	=item on_refresh_end $term	256	=item on_refresh_end $term
129		257
130	Called just after the screen gets redrawn. See C<on_refresh_begin>.	258	Called just after the screen gets redrawn. See C<on_refresh_begin>.
131		259
		260	=item on_keyboard_command $term, $string
		261
		262	Called whenever the user presses a key combination that has a
		263	C<perl:string> action bound to it (see description of the B<keysym>
		264	resource in the @@RXVT_NAME@@(1) manpage).
		265
		266	=item on_key_press $term, $event, $octets
		267
		268	=item on_key_release $term, $event
		269
		270	=item on_button_press $term, $event
		271
		272	=item on_button_release $term, $event
		273
		274	=item on_motion_notify $term, $event
		275
		276	Called whenever the corresponding X event is received for the terminal If
		277	the hook returns true, then the even will be ignored by rxvt-unicode.
		278
		279	The event is a hash with most values as named by Xlib (see the XEvent
		280	manpage), with the additional members C<row> and C<col>, which are the row
		281	and column under the mouse cursor.
		282
		283	C<on_key_press> additionally receives the string rxvt-unicode would
		284	output, if any, in locale-specific encoding.
		285
		286	subwindow.
		287
		288	=back
		289
		290	=head2 Variables in the C<urxvt> Package
		291
		292	=over 4
		293
		294	=item $urxvt::TERM
		295
		296	The current terminal. This variable stores the current C<urxvt::term>
		297	object, whenever a callback/hook is executing.
		298
132	=back	299	=back
133		300
134	=head2 Functions in the C<urxvt> Package	301	=head2 Functions in the C<urxvt> Package
135		302
136	=over 4	303	=over 4
		304
		305	=item $term = new urxvt [arg...]
		306
		307	Creates a new terminal, very similar as if you had started it with
		308	C<system $binfile, arg...>. Croaks (and probably outputs an error message)
		309	if the new instance couldn't be created. Returns C<undef> if the new
		310	instance didn't initialise perl, and the terminal object otherwise. The
		311	C<init> and C<start> hooks will be called during the call.
137		312
138	=item urxvt::fatal $errormessage	313	=item urxvt::fatal $errormessage
139		314
140	Fatally aborts execution with the given error message. Avoid at all	315	Fatally aborts execution with the given error message. Avoid at all
141	costs! The only time this is acceptable is when the terminal process	316	costs! The only time this is acceptable is when the terminal process
…		…
152		327
153	=item $time = urxvt::NOW	328	=item $time = urxvt::NOW
154		329
155	Returns the "current time" (as per the event loop).	330	Returns the "current time" (as per the event loop).
156		331
		332	=back
		333
		334	=head2 RENDITION
		335
		336	Rendition bitsets contain information about colour, font, font styles and
		337	similar information for each screen cell.
		338
		339	The following "macros" deal with changes in rendition sets. You should
		340	never just create a bitset, you should always modify an existing one,
		341	as they contain important information required for correct operation of
		342	rxvt-unicode.
		343
		344	=over 4
		345
		346	=item $rend = urxvt::DEFAULT_RSTYLE
		347
		348	Returns the default rendition, as used when the terminal is starting up or
		349	being reset. Useful as a base to start when creating renditions.
		350
		351	=item $rend = urxvt::OVERLAY_RSTYLE
		352
		353	Return the rendition mask used for overlays by default.
		354
		355	=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline
		356
		357	Return the bit that enabled bold, italic, blink, reverse-video and
		358	underline, respectively. To enable such a style, just logically OR it into
		359	the bitset.
		360
		361	=item $foreground = urxvt::GET_BASEFG $rend
		362
		363	=item $background = urxvt::GET_BASEBG $rend
		364
		365	Return the foreground/background colour index, respectively.
		366
		367	=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)
		368
		369	=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)
		370
		371	Replace the foreground/background colour in the rendition mask with the
		372	specified one.
		373
		374	=item $value = urxvt::GET_CUSTOM ($rend)
		375
		376	Return the "custom" value: Every rendition has 5 bits for use by
		377	extensions. They can be set and changed as you like and are initially
		378	zero.
		379
		380	=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)
		381
		382	Change the custom value.
		383
		384	=back
		385
157	=cut	386	=cut
158		387
159	package urxvt;	388	package urxvt;
160		389
161	use strict;	390	use strict;
		391	use Scalar::Util ();
162		392
163	our $term;	393	our $TERM;
164	our @HOOKNAME;	394	our @HOOKNAME;
165	our $LIBDIR;	395	our $LIBDIR;
166		396
167	BEGIN {	397	BEGIN {
168	urxvt->bootstrap;	398	urxvt->bootstrap;
…		…
174	unless $msg =~ /\n$/;	404	unless $msg =~ /\n$/;
175	urxvt::warn ($msg);	405	urxvt::warn ($msg);
176	};	406	};
177	}	407	}
178		408
		409	my @hook_count;
179	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};	410	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
180		411
181	sub verbose {	412	sub verbose {
182	my ($level, $msg) = @_;	413	my ($level, $msg) = @_;
183	warn "$msg\n" if $level < $verbosity;	414	warn "$msg\n" if $level <= $verbosity;
184	}
185
186	my %hook_global;
187	my @hook_count;
188
189	# called by the rxvt core
190	sub invoke {
191	local $term = shift;
192	my $htype = shift;
193
194	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $term, @_) . ")"
195	if $verbosity >= 10;
196
197	for my $cb ($hook_global{_hook}[$htype], $term->{_hook}[$htype]) {
198	$cb or next;
199
200	while (my ($k, $v) = each %$cb) {
201	return 1 if $v->($term, @_);
202	}
203	}
204
205	0
206	}	415	}
207		416
208	# find on_xxx subs in the package and register them	417	# find on_xxx subs in the package and register them
209	# as hooks	418	# as hooks
210	sub register_package($) {	419	sub register_package($) {
…		…
214	my $name = $HOOKNAME[$htype];	423	my $name = $HOOKNAME[$htype];
215		424
216	my $ref = $pkg->can ("on_" . lc $name)	425	my $ref = $pkg->can ("on_" . lc $name)
217	or next;	426	or next;
218		427
219	$term->{_hook}[$htype]{$ref*1} = $ref;	428	$TERM->{_hook}[$htype]{$pkg} = $ref;
220	$hook_count[$htype]++	429	$hook_count[$htype]++
221	or set_should_invoke $htype, 1;	430	or set_should_invoke $htype, 1;
222	}	431	}
223	}	432	}
224		433
225	my $script_pkg = "script0000";	434	my $extension_pkg = "extension0000";
226	my %script_pkg;	435	my %extension_pkg;
227		436
228	# load a single script into its own package, once only	437	# load a single script into its own package, once only
229	sub script_package($) {	438	sub extension_package($) {
230	my ($path) = @_;	439	my ($path) = @_;
231		440
232	$script_pkg{$path} \|\|= do {	441	$extension_pkg{$path} \|\|= do {
233	my $pkg = $script_pkg++;	442	my $pkg = "urxvt::" . ($extension_pkg++);
		443
234	verbose 3, "loading script '$path' into package '$pkg'";	444	verbose 3, "loading extension '$path' into package '$pkg'";
235		445
236	open my $fh, "<:raw", $path	446	open my $fh, "<:raw", $path
237	or die "$path: $!";	447	or die "$path: $!";
238		448
239	eval "package $pkg; use strict; use utf8;\n"	449	my $source = "package $pkg; use strict; use utf8;\n"
		450	. "use base urxvt::term::proxy::;\n"
240	. "#line 1 \"$path\"\n"	451	. "#line 1 \"$path\"\n{\n"
241	. do { local $/; <$fh> }	452	. (do { local $/; <$fh> })
		453	. "\n};\n1";
		454
242	or die "$path: $@";	455	eval $source or die "$path: $@";
243		456
244	$pkg	457	$pkg
245	}	458	}
246	}	459	}
247		460
248	sub load_scripts($) {	461	our $retval; # return value for urxvt
249	my ($dir) = @_;
250		462
251	verbose 3, "loading scripts from '$dir'";	463	# called by the rxvt core
		464	sub invoke {
		465	local $TERM = shift;
		466	my $htype = shift;
252		467
253	register_package script_package $_	468	if ($htype == 0) { # INIT
254	for grep -f $_,	469	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
255	<$dir/*>;
256	}
257		470
258	sub on_init {	471	for my $ext (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
259	my ($term) = @_;	472	my @files = grep -f $_, map "$_/$ext", @dirs;
260		473
261	my $libdir = $term->resource ("perl_lib");	474	if (@files) {
262		475	register_package extension_package $files[0];
263	load_scripts $libdir	476	} else {
264	if defined $libdir;	477	warn "perl extension '$ext' not found in perl library search path\n";
265	}	478	}
266		479	}
267	sub on_destroy {
268	my ($term) = @_;
269
270	my $hook = $term->{_hook}
271	or return;
272
273	for my $htype (0..$#$hook) {
274	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] \|\| {} }
275	or set_should_invoke $htype, 0;
276	}	480	}
277	}
278		481
279	{	482	$retval = undef;
280	local $term = \%hook_global;
281		483
282	register_package __PACKAGE__;	484	if (my $cb = $TERM->{_hook}[$htype]) {
283	load_scripts "$LIBDIR/perl-ext";	485	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
284	}	486	if $verbosity >= 10;
285		487
286	=back	488	keys %$cb;
		489
		490	while (my ($pkg, $cb) = each %$cb) {
		491	eval {
		492	$retval = $cb->(
		493	$TERM->{_pkg}{$pkg} \|\|= do {
		494	my $proxy = bless { }, $pkg;
		495	Scalar::Util::weaken ($proxy->{term} = $TERM);
		496	$proxy
		497	},
		498	@_,
		499	) and last;
		500	};
		501	warn $@ if $@;#d#
		502	}
		503	}
		504
		505	if ($htype == 1) { # DESTROY
		506	# remove hooks if unused
		507	if (my $hook = $TERM->{_hook}) {
		508	for my $htype (0..$#$hook) {
		509	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] \|\| {} }
		510	or set_should_invoke $htype, 0;
		511	}
		512	}
		513
		514	# clear package objects
		515	%$_ = () for values %{ $TERM->{_pkg} };
		516
		517	# clear package
		518	%$TERM = ();
		519	}
		520
		521	$retval
		522	}
		523
		524	sub urxvt::term::proxy::AUTOLOAD {
		525	$urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/
		526	or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";
		527
		528	eval qq{
		529	sub $urxvt::term::proxy::AUTOLOAD {
		530	my \$proxy = shift;
		531	\$proxy->{term}->$1 (\@_)
		532	}
		533	1
		534	} or die "FATAL: unable to compile method forwarder: $@";
		535
		536	goto &$urxvt::term::proxy::AUTOLOAD;
		537	}
287		538
288	=head2 The C<urxvt::term> Class	539	=head2 The C<urxvt::term> Class
289		540
290	=over 4	541	=over 4
		542
		543	=item $term->destroy
		544
		545	Destroy the terminal object (close the window, free resources etc.).
291		546
292	=item $value = $term->resource ($name[, $newval])	547	=item $value = $term->resource ($name[, $newval])
293		548
294	Returns the current resource value associated with a given name and	549	Returns the current resource value associated with a given name and
295	optionally sets a new value. Setting values is most useful in the C<init>	550	optionally sets a new value. Setting values is most useful in the C<init>
…		…
312		567
313	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont	568	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
314	borderLess color cursorBlink cursorUnderline cutchars delete_key	569	borderLess color cursorBlink cursorUnderline cutchars delete_key
315	display_name embed ext_bwidth fade font geometry hold iconName	570	display_name embed ext_bwidth fade font geometry hold iconName
316	imFont imLocale inputMethod insecure int_bwidth intensityStyles	571	imFont imLocale inputMethod insecure int_bwidth intensityStyles
317	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8	572	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier
318	modifier mouseWheelScrollPage name pastableTabs path perl perl_eval	573	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2
319	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd	574	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd
320	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating	575	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating
321	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput	576	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput
322	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle	577	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle
323	shade term_name title transparent transparent_all tripleclickwords	578	shade term_name title transparent transparent_all tripleclickwords
…		…
329	my ($self, $name) = (shift, shift);	584	my ($self, $name) = (shift, shift);
330	unshift @_, $self, $name, ($name =~ s/\s\+\s(\d+)$// ? $1 : 0);	585	unshift @_, $self, $name, ($name =~ s/\s\+\s(\d+)$// ? $1 : 0);
331	goto &urxvt::term::_resource;	586	goto &urxvt::term::_resource;
332	}	587	}
333		588
		589	=item $rend = $term->rstyle ([$new_rstyle])
		590
		591	Return and optionally change the current rendition. Text that is output by
		592	the terminal application will use this style.
		593
		594	=item ($row, $col) = $term->screen_cur ([$row, $col])
		595
		596	Return the current coordinates of the text cursor position and optionally
		597	set it (which is usually bad as applications don't expect that).
		598
334	=item ($row, $col) = $term->selection_mark ([$row, $col])	599	=item ($row, $col) = $term->selection_mark ([$row, $col])
335		600
336	=item ($row, $col) = $term->selection_beg ([$row, $col])	601	=item ($row, $col) = $term->selection_beg ([$row, $col])
337		602
338	=item ($row, $col) = $term->selection_end ([$row, $col])	603	=item ($row, $col) = $term->selection_end ([$row, $col])
…		…
347		612
348	=item $oldtext = $term->selection ([$newtext])	613	=item $oldtext = $term->selection ([$newtext])
349		614
350	Return the current selection text and optionally replace it by C<$newtext>.	615	Return the current selection text and optionally replace it by C<$newtext>.
351		616
352	=item $term->scr_overlay ($x, $y, $text)	617	#=item $term->overlay ($x, $y, $text)
353		618	#
354	Create a simple multi-line overlay box. See the next method for details.	619	#Create a simple multi-line overlay box. See the next method for details.
355		620	#
356	=cut	621	#=cut
357		622	#
358	sub urxvt::term::scr_overlay {	623	#sub urxvt::term::scr_overlay {
359	my ($self, $x, $y, $text) = @_;	624	# my ($self, $x, $y, $text) = @_;
360		625	#
361	my @lines = split /\n/, $text;	626	# my @lines = split /\n/, $text;
362		627	#
363	my $w = 0;	628	# my $w = 0;
364	for (map $self->strwidth ($_), @lines) {	629	# for (map $self->strwidth ($_), @lines) {
365	$w = $_ if $w < $_;	630	# $w = $_ if $w < $_;
366	}	631	# }
367		632	#
368	$self->scr_overlay_new ($x, $y, $w, scalar @lines);	633	# $self->scr_overlay_new ($x, $y, $w, scalar @lines);
369	$self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;	634	# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;
370	}	635	#}
371		636
372	=item $term->scr_overlay_new ($x, $y, $width, $height)	637	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
373		638
374	Create a new (empty) overlay at the given position with the given	639	Create a new (empty) overlay at the given position with the given
375	width/height. A border will be put around the box. If either C<$x> or	640	width/height. C<$rstyle> defines the initial rendition style
376	C<$y> is negative, then this is counted from the right/bottom side,	641	(default: C<OVERLAY_RSTYLE>).
377	respectively.
378		642
379	=item $term->scr_overlay_off	643	If C<$border> is C<2> (default), then a decorative border will be put
		644	around the box.
380		645
381	Switch the overlay off again.	646	If either C<$x> or C<$y> is negative, then this is counted from the
		647	right/bottom side, respectively.
382		648
383	=item $term->scr_overlay_set_char ($x, $y, $char, $rend = OVERLAY_RSTYLE)	649	This method returns an urxvt::overlay object. The overlay will be visible
		650	as long as the perl object is referenced.
384		651
385	Put a single character (specified numerically) at the given overlay	652	The methods currently supported on C<urxvt::overlay> objects are:
386	position.
387		653
		654	=over 4
		655
388	=item $term->scr_overlay_set ($x, $y, $text)	656	=item $overlay->set ($x, $y, $text, $rend)
389		657
390	Write a string at the given position into the overlay.	658	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts
		659	text in rxvt-unicode's special encoding and an array of rendition values
		660	at a specific position inside the overlay.
391		661
		662	=item $overlay->hide
		663
		664	If visible, hide the overlay, but do not destroy it.
		665
		666	=item $overlay->show
		667
		668	If hidden, display the overlay again.
		669
		670	=back
		671
392	=item $cellwidth = $term->strwidth $string	672	=item $cellwidth = $term->strwidth ($string)
393		673
394	Returns the number of screen-cells this string would need. Correctly	674	Returns the number of screen-cells this string would need. Correctly
395	accounts for wide and combining characters.	675	accounts for wide and combining characters.
396		676
397	=item $octets = $term->locale_encode $string	677	=item $octets = $term->locale_encode ($string)
398		678
399	Convert the given text string into the corresponding locale encoding.	679	Convert the given text string into the corresponding locale encoding.
400		680
401	=item $string = $term->locale_decode $octets	681	=item $string = $term->locale_decode ($octets)
402		682
403	Convert the given locale-encoded octets into a perl string.	683	Convert the given locale-encoded octets into a perl string.
404		684
		685	=item $term->scr_add_lines ($string)
		686
		687	Write the given text string to the screen, as if output by the application
		688	running inside the terminal. It may not contain command sequences (escape
		689	codes), but is free to use line feeds, carriage returns and tabs. The
		690	string is a normal text string, not in locale-dependent encoding.
		691
		692	Normally its not a good idea to use this function, as programs might be
		693	confused by changes in cursor position or scrolling. Its useful inside a
		694	C<on_add_lines> hook, though.
		695
		696	=item $term->cmd_parse ($octets)
		697
		698	Similar to C<scr_add_lines>, but the argument must be in the
		699	locale-specific encoding of the terminal and can contain command sequences
		700	(escape codes) that will be interpreted.
		701
405	=item $term->tt_write ($octets)	702	=item $term->tt_write ($octets)
406		703
407	Write the octets given in C<$data> to the tty (i.e. as program input). To	704	Write the octets given in C<$data> to the tty (i.e. as program input). To
408	pass characters instead of octets, you should convetr you strings first to	705	pass characters instead of octets, you should convert your strings first
409	the locale-specific encoding using C<< $term->locale_encode >>.	706	to the locale-specific encoding using C<< $term->locale_encode >>.
		707
		708	=item $windowid = $term->parent
		709
		710	Return the window id of the toplevel window.
		711
		712	=item $windowid = $term->vt
		713
		714	Return the window id of the terminal window.
		715
		716	=item $window_width = $term->width
		717
		718	=item $window_height = $term->height
		719
		720	=item $font_width = $term->fwidth
		721
		722	=item $font_height = $term->fheight
		723
		724	=item $font_ascent = $term->fbase
		725
		726	=item $terminal_rows = $term->nrow
		727
		728	=item $terminal_columns = $term->ncol
		729
		730	=item $has_focus = $term->focus
		731
		732	=item $is_mapped = $term->mapped
		733
		734	=item $max_scrollback = $term->saveLines
		735
		736	=item $nrow_plus_saveLines = $term->total_rows
		737
		738	=item $lines_in_scrollback = $term->nsaved
		739
		740	Return various integers describing terminal characteristics.
		741
		742	=item $view_start = $term->view_start ([$newvalue])
		743
		744	Returns the negative row number of the topmost line. Minimum value is
		745	C<0>, which displays the normal terminal contents. Larger values scroll
		746	this many lines into the scrollback buffer.
		747
		748	=item $term->want_refresh
		749
		750	Requests a screen refresh. At the next opportunity, rxvt-unicode will
		751	compare the on-screen display with its stored representation. If they
		752	differ, it redraws the differences.
		753
		754	Used after changing terminal contents to display them.
		755
		756	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
		757
		758	Returns the text of the entire row with number C<$row_number>. Row C<0>
		759	is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost
		760	terminal line. The scrollback buffer starts at line C<-1> and extends to
		761	line C<< -$term->nsaved >>. Nothing will be returned if a nonexistent line
		762	is requested.
		763
		764	If C<$new_text> is specified, it will replace characters in the current
		765	line, starting at column C<$start_col> (default C<0>), which is useful
		766	to replace only parts of a line. The font index in the rendition will
		767	automatically be updated.
		768
		769	C<$text> is in a special encoding: tabs and wide characters that use more
		770	than one cell when displayed are padded with urxvt::NOCHAR characters
		771	(C<chr 65535>). Characters with combining characters and other characters
		772	that do not fit into the normal tetx encoding will be replaced with
		773	characters in the private use area.
		774
		775	You have to obey this encoding when changing text. The advantage is
		776	that C<substr> and similar functions work on screen cells and not on
		777	characters.
		778
		779	The methods C<< $term->special_encode >> and C<< $term->special_decode >>
		780	can be used to convert normal strings into this encoding and vice versa.
		781
		782	=item $rend = $term->ROW_r ($row_number[, $new_rend[, $start_col]])
		783
		784	Like C<< $term->ROW_t >>, but returns an arrayref with rendition
		785	bitsets. Rendition bitsets contain information about colour, font, font
		786	styles and similar information. See also C<< $term->ROW_t >>.
		787
		788	When setting rendition, the font mask will be ignored.
		789
		790	See the section on RENDITION, above.
		791
		792	=item $length = $term->ROW_l ($row_number[, $new_length])
		793
		794	Returns the number of screen cells that are in use ("the line
		795	length"). Unlike the urxvt core, this returns C<< $term->ncol >> if the
		796	line is joined with the following one.
		797
		798	=item $bool = $term->is_longer ($row_number)
		799
		800	Returns true if the row is part of a multiple-row logical "line" (i.e.
		801	joined with the following row), which means all characters are in use
		802	and it is continued on the next row (and possibly a continuation of the
		803	previous row(s)).
		804
		805	=item $line = $term->line ($row_number)
		806
		807	Create and return a new C<urxvt::line> object that stores information
		808	about the logical line that row C<$row_number> is part of. It supports the
		809	following methods:
		810
		811	=over 4
		812
		813	=item $text = $line->t ([$new_text])
		814
		815	Returns or replaces the full text of the line, similar to C<ROW_t>
		816
		817	=item $rend = $line->r ([$new_rend])
		818
		819	Returns or replaces the full rendition array of the line, similar to C<ROW_r>
		820
		821	=item $length = $line->l
		822
		823	Returns the length of the line in cells, similar to C<ROW_l>.
		824
		825	=item $rownum = $line->beg
		826
		827	=item $rownum = $line->end
		828
		829	Return the row number of the first/last row of the line, respectively.
		830
		831	=item $offset = $line->offset_of ($row, $col)
		832
		833	Returns the character offset of the given row\|col pair within the logical
		834	line.
		835
		836	=item ($row, $col) = $line->coord_of ($offset)
		837
		838	Translates a string offset into terminal coordinates again.
		839
		840	=back
		841
		842	=cut
		843
		844	sub urxvt::term::line {
		845	my ($self, $row) = @_;
		846
		847	my $maxrow = $self->nrow - 1;
		848
		849	my ($beg, $end) = ($row, $row);
		850
		851	--$beg while $self->ROW_is_longer ($beg - 1);
		852	++$end while $self->ROW_is_longer ($end) && $end < $maxrow;
		853
		854	bless {
		855	term => $self,
		856	beg => $beg,
		857	end => $end,
		858	ncol => $self->ncol,
		859	len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),
		860	}, urxvt::line::
		861	}
		862
		863	sub urxvt::line::t {
		864	my ($self) = @_;
		865
		866	if (@_ > 1)
		867	{
		868	$self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
		869	for $self->{beg} .. $self->{end};
		870	}
		871
		872	defined wantarray &&
		873	substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),
		874	0, $self->{len}
		875	}
		876
		877	sub urxvt::line::r {
		878	my ($self) = @_;
		879
		880	if (@_ > 1)
		881	{
		882	$self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
		883	for $self->{beg} .. $self->{end};
		884	}
		885
		886	if (defined wantarray) {
		887	my $rend = [
		888	map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}
		889	];
		890	$#$rend = $self->{len} - 1;
		891	return $rend;
		892	}
		893
		894	()
		895	}
		896
		897	sub urxvt::line::beg { $_[0]{beg} }
		898	sub urxvt::line::end { $_[0]{end} }
		899	sub urxvt::line::l { $_[0]{len} }
		900
		901	sub urxvt::line::offset_of {
		902	my ($self, $row, $col) = @_;
		903
		904	($row - $self->{beg}) * $self->{ncol} + $col
		905	}
		906
		907	sub urxvt::line::coord_of {
		908	my ($self, $offset) = @_;
		909
		910	use integer;
		911
		912	(
		913	$offset / $self->{ncol} + $self->{beg},
		914	$offset % $self->{ncol}
		915	)
		916	}
		917
		918	=item ($row, $col) = $line->coord_of ($offset)
		919	=item $text = $term->special_encode $string
		920
		921	Converts a perl string into the special encoding used by rxvt-unicode,
		922	where one character corresponds to one screen cell. See
		923	C<< $term->ROW_t >> for details.
		924
		925	=item $string = $term->special_decode $text
		926
		927	Converts rxvt-unicodes text reprsentation into a perl string. See
		928	C<< $term->ROW_t >> for details.
410		929
411	=back	930	=back
412		931
413	=head2 The C<urxvt::timer> Class	932	=head2 The C<urxvt::timer> Class
414		933
415	This class implements timer watchers/events. Time is represented as a	934	This class implements timer watchers/events. Time is represented as a
416	fractional number of seconds since the epoch. Example:	935	fractional number of seconds since the epoch. Example:
417		936
418	# create a digital clock display in upper right corner	937	$term->{overlay} = $term->overlay (-1, 0, 8, 1, urxvt::OVERLAY_RSTYLE, 0);
419	$term->{timer} = urxvt::timer	938	$term->{timer} = urxvt::timer
420	->new	939	->new
421	->start (urxvt::NOW)	940	->interval (1)
422	->cb (sub {	941	->cb (sub {
423	my ($timer) = @_;
424	my $time = $timer->at;
425	$timer->start ($time + 1);
426	$self->scr_overlay (-1, 0,	942	$term->{overlay}->set (0, 0,
427	POSIX::strftime "%H:%M:%S", localtime $time);	943	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
428	});	944	});
429		945
430	=over 4	946	=over 4
431		947
432	=item $timer = new urxvt::timer	948	=item $timer = new urxvt::timer
433		949
434	Create a new timer object in stopped state.	950	Create a new timer object in started state. It is scheduled to fire
		951	immediately.
435		952
436	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })	953	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })
437		954
438	Set the callback to be called when the timer triggers.	955	Set the callback to be called when the timer triggers.
439		956
…		…
442	Return the time this watcher will fire next.	959	Return the time this watcher will fire next.
443		960
444	=item $timer = $timer->set ($tstamp)	961	=item $timer = $timer->set ($tstamp)
445		962
446	Set the time the event is generated to $tstamp.	963	Set the time the event is generated to $tstamp.
		964
		965	=item $timer = $timer->interval ($interval)
		966
		967	Normally (and when C<$interval> is C<0>), the timer will automatically
		968	stop after it has fired once. If C<$interval> is non-zero, then the timer
		969	is automatically rescheduled at the given intervals.
447		970
448	=item $timer = $timer->start	971	=item $timer = $timer->start
449		972
450	Start the timer.	973	Start the timer.
451		974
…		…
514	This variable controls the verbosity level of the perl extension. Higher	1037	This variable controls the verbosity level of the perl extension. Higher
515	numbers indicate more verbose output.	1038	numbers indicate more verbose output.
516		1039
517	=over 4	1040	=over 4
518		1041
519	=item 0 - only fatal messages	1042	=item =0 - only fatal messages
520		1043
521	=item 3 - script loading and management	1044	=item =3 - script loading and management
522		1045
523	=item 10 - all events received	1046	=item =10 - all events received
524		1047
525	=back	1048	=back
526		1049
527	=head1 AUTHOR	1050	=head1 AUTHOR
528		1051

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Comparing rxvt-unicode/src/urxvt.pm (file contents): Revision 1.7 by root, Mon Jan 2 19:05:05 2006 UTC vs. Revision 1.44 by root, Sat Jan 7 19:29:17 2006 UTC

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Comparing rxvt-unicode/src/urxvt.pm (file contents):
Revision 1.7 by root, Mon Jan 2 19:05:05 2006 UTC vs.
Revision 1.44 by root, Sat Jan 7 19:29:17 2006 UTC