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Revision 1.52 by root, Sun Jan 8 00:48:14 2006 UTC vs.
Revision 1.248 by root, Fri Dec 26 21:01:46 2014 UTC

1	=encoding utf8	1	=encoding utf8
2		2
3	=head1 NAME	3	=head1 NAME
4		4
5	@@RXVT_NAME@@perl - rxvt-unicode's embedded perl interpreter	5	urxvtperl - rxvt-unicode's embedded perl interpreter
6		6
7	=head1 SYNOPSIS	7	=head1 SYNOPSIS
8		8
9	# create a file grab_test in $HOME:	9	# create a file grab_test in $HOME:
10		10
11	sub on_sel_grab {	11	sub on_sel_grab {
12	warn "you selected ", $_[0]->selection;	12	warn "you selected ", $_[0]->selection;
13	()	13	()
14	}	14	}
15		15
16	# start a @@RXVT_NAME@@ using it:	16	# start a urxvt using it:
17		17
18	@@RXVT_NAME@@ --perl-lib $HOME -pe grab_test	18	urxvt --perl-lib $HOME -pe grab_test
19		19
20	=head1 DESCRIPTION	20	=head1 DESCRIPTION
21		21
22	Everytime a terminal object gets created, extension scripts specified via	22	Every time a terminal object gets created, extension scripts specified via
23	the C<perl> resource are loaded and associated with it.	23	the C<perl> resource are loaded and associated with it.
24		24
25	Scripts are compiled in a 'use strict' and 'use utf8' environment, and	25	Scripts are compiled in a 'use strict "vars"' and 'use utf8' environment, and
26	thus must be encoded as UTF-8.	26	thus must be encoded as UTF-8.
27		27
28	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 urxvtd, where
29	scripts will be shared (but not enabled) for all terminals.	29	scripts will be shared (but not enabled) for all terminals.
30		30
31	=head2 Prepackaged Extensions	31	You can disable the embedded perl interpreter by setting both "perl-ext"
		32	and "perl-ext-common" resources to the empty string.
32		33
33	This section describes the extensiosn delivered with this version. You can	34	=head1 PREPACKAGED EXTENSIONS
34	find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.	35
		36	A number of extensions are delivered with this release. You can find them
		37	in F<< <libdir>/urxvt/perl/ >>, and the documentation can be viewed using
		38	F<< man urxvt-<EXTENSIONNAME> >>.
35		39
36	You can activate them like this:	40	You can activate them like this:
37		41
38	@@RXVT_NAME@@ -pe <extensionname>	42	urxvt -pe <extensionname>
39		43
40	=over 4	44	Or by adding them to the resource for extensions loaded by default:
41		45
42	=item selection	46	URxvt.perl-ext-common: default,selection-autotransform
43		47
44	Intelligent selection. This extension tries to be more intelligent when	48	Extensions may add additional resources and C<actions>, i.e., methods
45	the user extends selections (double-click). Right now, it tries to select	49	which can be bound to a key and invoked by the user. An extension can
46	urls and complete shell-quoted arguments, which is very convenient, too,	50	define the resources it support and also default bindings for one or
47	if your F<ls> supports C<--quoting-style=shell>.	51	more actions it provides using so called META comments, described
		52	below. Similarly to builtin resources, extension resources can also be
		53	specified on the command line as long options (with C<.> replaced by
		54	C<->), in which case the corresponding extension is loaded
		55	automatically. For this to work the extension B<must> define META
		56	comments for its resources.
48		57
49	It also offers the following bindable event:	58	=head1 API DOCUMENTATION
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
82		59
83	=head2 General API Considerations	60	=head2 General API Considerations
84		61
85	All objects (such as terminals, time watchers etc.) are typical	62	All objects (such as terminals, time watchers etc.) are typical
86	reference-to-hash objects. The hash can be used to store anything you	63	reference-to-hash objects. The hash can be used to store anything you
…		…
98		75
99	=over 4	76	=over 4
100		77
101	=item $text	78	=item $text
102		79
103	Rxvt-unicodes special way of encoding text, where one "unicode" character	80	Rxvt-unicode's 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.	81	always represents one screen cell. See L<ROW_t> for a discussion of this format.
105		82
106	=item $string	83	=item $string
107		84
108	A perl text string, with an emphasis on I<text>. It can store all unicode	85	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	86	characters and is to be distinguished with text encoded in a specific
…		…
112	=item $octets	89	=item $octets
113		90
114	Either binary data or - more common - a text string encoded in a	91	Either binary data or - more common - a text string encoded in a
115	locale-specific way.	92	locale-specific way.
116		93
		94	=item $keysym
		95
		96	an integer that is a valid X11 keysym code. You can convert a string
		97	into a keysym and viceversa by using C<XStringToKeysym> and
		98	C<XKeysymToString>.
		99
		100	=back
		101
		102	=head2 Extension Objects
		103
		104	Every perl extension is a perl class. A separate perl object is created
		105	for each terminal, and each terminal has its own set of extension objects,
		106	which are passed as the first parameter to hooks. So extensions can use
		107	their C<$self> object without having to think about clashes with other
		108	extensions or other terminals, with the exception of methods and members
		109	that begin with an underscore character C<_>: these are reserved for
		110	internal use.
		111
		112	Although it isn't a C<urxvt::term> object, you can call all methods of the
		113	C<urxvt::term> class on this object.
		114
		115	Additional methods only supported for extension objects are described in
		116	the C<urxvt::extension> section below.
		117
		118	=head2 META comments
		119
		120	Rxvt-unicode recognizes special meta comments in extensions that define
		121	different types of metadata.
		122
		123	Currently, it recxognises only one such comment:
		124
		125	=over 4
		126
		127	=item #:META:RESOURCE:name:type:desc
		128
		129	The RESOURCE comment defines a resource used by the extension, where
		130	C<name> is the resource name, C<type> is the resource type, C<boolean>
		131	or C<string>, and C<desc> is the resource description.
		132
117	=back	133	=back
118		134
119	=head2 Hooks	135	=head2 Hooks
120		136
121	The following subroutines can be declared in extension files, and will be	137	The following subroutines can be declared in extension files, and will be
122	called whenever the relevant event happens.	138	called whenever the relevant event happens.
123		139
124	The first argument passed to them is an object private to each terminal	140	The first argument passed to them is an extension object as described in
125	and extension package. You can call all C<urxvt::term> methods on it, but	141	the in the C<Extension Objects> section.
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.
130		142
131	All of them must return a boolean value. If it is true, then the event	143	B<All> of these hooks must return a boolean value. If any of the called
132	counts as being I<consumed>, and the invocation of other hooks is skipped,	144	hooks returns true, then the event counts as being I<consumed>, and the
133	and the relevant action might not be carried out by the C++ code.	145	relevant action might not be carried out by the C++ code.
134		146
135	When in doubt, return a false value (preferably C<()>).	147	I<< When in doubt, return a false value (preferably C<()>). >>
136		148
137	=over 4	149	=over 4
138		150
139	=item on_init $term	151	=item on_init $term
140		152
141	Called after a new terminal object has been initialized, but before	153	Called after a new terminal object has been initialized, but before
142	windows are created or the command gets run. Most methods are unsafe to	154	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	155	call or deliver senseless data, as terminal size and other characteristics
144	have not yet been determined. You can safely query and change resources,	156	have not yet been determined. You can safely query and change resources
145	though.	157	and options, though. For many purposes the C<on_start> hook is a better
		158	place.
		159
		160	=item on_start $term
		161
		162	Called at the very end of initialisation of a new terminal, just before
		163	trying to map (display) the toplevel and returning to the main loop.
		164
		165	=item on_destroy $term
		166
		167	Called whenever something tries to destroy terminal, when the terminal is
		168	still fully functional (not for long, though).
146		169
147	=item on_reset $term	170	=item on_reset $term
148		171
149	Called after the screen is "reset" for any reason, such as resizing or	172	Called after the screen is "reset" for any reason, such as resizing or
150	control sequences. Here is where you can react on changes to size-related	173	control sequences. Here is where you can react on changes to size-related
151	variables.	174	variables.
152		175
153	=item on_start $term	176	=item on_child_start $term, $pid
154		177
155	Called at the very end of initialisation of a new terminal, just before	178	Called just after the child process has been C<fork>ed.
156	returning to the mainloop.	179
		180	=item on_child_exit $term, $status
		181
		182	Called just after the child process has exited. C<$status> is the status
		183	from C<waitpid>.
157		184
158	=item on_sel_make $term, $eventtime	185	=item on_sel_make $term, $eventtime
159		186
160	Called whenever a selection has been made by the user, but before the	187	Called whenever a selection has been made by the user, but before the
161	selection text is copied, so changes to the beginning, end or type of the	188	selection text is copied, so changes to the beginning, end or type of the
…		…
168		195
169	Called whenever a selection has been copied, but before the selection is	196	Called whenever a selection has been copied, but before the selection is
170	requested from the server. The selection text can be queried and changed	197	requested from the server. The selection text can be queried and changed
171	by calling C<< $term->selection >>.	198	by calling C<< $term->selection >>.
172		199
173	Returning a true value aborts selection grabbing. It will still be hilighted.	200	Returning a true value aborts selection grabbing. It will still be highlighted.
174		201
175	=item on_sel_extend $term	202	=item on_sel_extend $term
176		203
177	Called whenever the user tries to extend the selection (e.g. with a double	204	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	205	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	206	should extend the selection itself and return true to suppress the built-in
180	processing.	207	processing. This can happen multiple times, as long as the callback
		208	returns true, it will be called on every further click by the user and is
		209	supposed to enlarge the selection more and more, if possible.
181		210
182	See the F<selection> example extension.	211	See the F<selection> example extension.
183		212
184	=item on_view_change $term, $offset	213	=item on_view_change $term, $offset
185		214
186	Called whenever the view offset changes, i..e the user or program	215	Called whenever the view offset changes, i.e. the user or program
187	scrolls. Offset C<0> means display the normal terminal, positive values	216	scrolls. Offset C<0> means display the normal terminal, positive values
188	show this many lines of scrollback.	217	show this many lines of scrollback.
189		218
190	=item on_scroll_back $term, $lines, $saved	219	=item on_scroll_back $term, $lines, $saved
191		220
…		…
195		224
196	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,	225	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
197	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total	226	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
198	number of lines that will be in the scrollback buffer.	227	number of lines that will be in the scrollback buffer.
199		228
200	=item on_tty_activity $term *NYI*
201
202	Called whenever the program(s) running in the urxvt window send output.
203
204	=item on_osc_seq $term, $string	229	=item on_osc_seq $term, $op, $args, $resp
		230
		231	Called on every OSC sequence and can be used to suppress it or modify its
		232	behaviour. The default should be to return an empty list. A true value
		233	suppresses execution of the request completely. Make sure you don't get
		234	confused by recursive invocations when you output an OSC sequence within
		235	this callback.
		236
		237	C<on_osc_seq_perl> should be used for new behaviour.
		238
		239	=item on_osc_seq_perl $term, $args, $resp
205		240
206	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =	241	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
207	operating system command) is processed. Cursor position and other state	242	operating system command) is processed. Cursor position and other state
208	information is up-to-date when this happens. For interoperability, the	243	information is up-to-date when this happens. For interoperability, the
209	string should start with the extension name and a colon, to distinguish	244	string should start with the extension name (sans -osc) and a semicolon,
210	it from commands for other extensions, and this might be enforced in the	245	to distinguish it from commands for other extensions, and this might be
211	future.	246	enforced in the future.
		247
		248	For example, C<overlay-osc> uses this:
		249
		250	sub on_osc_seq_perl {
		251	my ($self, $osc, $resp) = @_;
		252
		253	return unless $osc =~ s/^overlay;//;
		254
		255	... process remaining $osc string
		256	}
212		257
213	Be careful not ever to trust (in a security sense) the data you receive,	258	Be careful not ever to trust (in a security sense) the data you receive,
214	as its source can not easily be controleld (e-mail content, messages from	259	as its source can not easily be controlled (e-mail content, messages from
215	other users on the same system etc.).	260	other users on the same system etc.).
		261
		262	For responses, C<$resp> contains the end-of-args separator used by the
		263	sender.
216		264
217	=item on_add_lines $term, $string	265	=item on_add_lines $term, $string
218		266
219	Called whenever text is about to be output, with the text as argument. You	267	Called whenever text is about to be output, with the text as argument. You
220	can filter/change and output the text yourself by returning a true value	268	can filter/change and output the text yourself by returning a true value
221	and calling C<< $term->scr_add_lines >> yourself. Please note that this	269	and calling C<< $term->scr_add_lines >> yourself. Please note that this
222	might be very slow, however, as your hook is called for B<all> text being	270	might be very slow, however, as your hook is called for B<all> text being
223	output.	271	output.
224		272
		273	=item on_tt_write $term, $octets
		274
		275	Called whenever some data is written to the tty/pty and can be used to
		276	suppress or filter tty input.
		277
		278	=item on_tt_paste $term, $octets
		279
		280	Called whenever text is about to be pasted, with the text as argument. You
		281	can filter/change and paste the text yourself by returning a true value
		282	and calling C<< $term->tt_paste >> yourself. C<$octets> is
		283	locale-encoded.
		284
225	=item on_line_update $term, $row	285	=item on_line_update $term, $row
226		286
227	Called whenever a line was updated or changed. Can be used to filter	287	Called whenever a line was updated or changed. Can be used to filter
228	screen output (e.g. underline urls or other useless stuff). Only lines	288	screen output (e.g. underline urls or other useless stuff). Only lines
229	that are being shown will be filtered, and, due to performance reasons,	289	that are being shown will be filtered, and, due to performance reasons,
…		…
236	later with the already-modified line (e.g. if unrelated parts change), so	296	later with the already-modified line (e.g. if unrelated parts change), so
237	you cannot just toggle rendition bits, but only set them.	297	you cannot just toggle rendition bits, but only set them.
238		298
239	=item on_refresh_begin $term	299	=item on_refresh_begin $term
240		300
241	Called just before the screen gets redrawn. Can be used for overlay	301	Called just before the screen gets redrawn. Can be used for overlay or
242	or similar effects by modify terminal contents in refresh_begin, and	302	similar effects by modifying the terminal contents in refresh_begin, and
243	restoring them in refresh_end. The built-in overlay and selection display	303	restoring them in refresh_end. The built-in overlay and selection display
244	code is run after this hook, and takes precedence.	304	code is run after this hook, and takes precedence.
245		305
246	=item on_refresh_end $term	306	=item on_refresh_end $term
247		307
248	Called just after the screen gets redrawn. See C<on_refresh_begin>.	308	Called just after the screen gets redrawn. See C<on_refresh_begin>.
249		309
		310	=item on_action $term, $string
		311
		312	Called whenever an action is invoked for the corresponding extension
		313	(e.g. via a C<extension:string> builtin action bound to a key, see
		314	description of the B<keysym> resource in the urxvt(1) manpage). The
		315	event is simply the action string. Note that an action event is always
		316	associated to a single extension.
		317
250	=item on_keyboard_command $term, $string	318	=item on_user_command $term, $string *DEPRECATED*
251		319
252	Called whenever the user presses a key combination that has a	320	Called whenever a user-configured event is being activated (e.g. via
253	C<perl:string> action bound to it (see description of the B<keysym>	321	a C<perl:string> action bound to a key, see description of the B<keysym>
254	resource in the @@RXVT_NAME@@(1) manpage).	322	resource in the urxvt(1) manpage).
		323
		324	The event is simply the action string. This interface is going away in
		325	preference to the C<on_action> hook.
		326
		327	=item on_resize_all_windows $term, $new_width, $new_height
		328
		329	Called just after the new window size has been calculated, but before
		330	windows are actually being resized or hints are being set. If this hook
		331	returns a true value, setting of the window hints is being skipped.
		332
		333	=item on_x_event $term, $event
		334
		335	Called on every X event received on the vt window (and possibly other
		336	windows). Should only be used as a last resort. Most event structure
		337	members are not passed.
		338
		339	=item on_root_event $term, $event
		340
		341	Like C<on_x_event>, but is called for events on the root window.
255		342
256	=item on_focus_in $term	343	=item on_focus_in $term
257		344
258	Called whenever the window gets the keyboard focus, before rxvt-unicode	345	Called whenever the window gets the keyboard focus, before rxvt-unicode
259	does focus in processing.	346	does focus in processing.
260		347
261	=item on_focus_out $term	348	=item on_focus_out $term
262		349
263	Called wheneever the window loses keyboard focus, before rxvt-unicode does	350	Called whenever the window loses keyboard focus, before rxvt-unicode does
264	focus out processing.	351	focus out processing.
265		352
		353	=item on_configure_notify $term, $event
		354
		355	=item on_property_notify $term, $event
		356
266	=item on_key_press $term, $event, $octets	357	=item on_key_press $term, $event, $keysym, $octets
267		358
268	=item on_key_release $term, $event	359	=item on_key_release $term, $event, $keysym
269		360
270	=item on_button_press $term, $event	361	=item on_button_press $term, $event
271		362
272	=item on_button_release $term, $event	363	=item on_button_release $term, $event
273		364
…		…
275		366
276	=item on_map_notify $term, $event	367	=item on_map_notify $term, $event
277		368
278	=item on_unmap_notify $term, $event	369	=item on_unmap_notify $term, $event
279		370
280	Called whenever the corresponding X event is received for the terminal If	371	Called whenever the corresponding X event is received for the terminal. If
281	the hook returns true, then the even will be ignored by rxvt-unicode.	372	the hook returns true, then the event will be ignored by rxvt-unicode.
282		373
283	The event is a hash with most values as named by Xlib (see the XEvent	374	The event is a hash with most values as named by Xlib (see the XEvent
284	manpage), with the additional members C<row> and C<col>, which are the row	375	manpage), with the additional members C<row> and C<col>, which are the
285	and column under the mouse cursor.	376	(real, not screen-based) row and column under the mouse cursor.
286		377
287	C<on_key_press> additionally receives the string rxvt-unicode would	378	C<on_key_press> additionally receives the string rxvt-unicode would
288	output, if any, in locale-specific encoding.	379	output, if any, in locale-specific encoding.
289		380
290	subwindow.	381	=item on_client_message $term, $event
		382
		383	=item on_wm_protocols $term, $event
		384
		385	=item on_wm_delete_window $term, $event
		386
		387	Called when various types of ClientMessage events are received (all with
		388	format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
		389
		390	=item on_bell $term
		391
		392	Called on receipt of a bell character.
291		393
292	=back	394	=back
293		395
		396	=cut
		397
		398	package urxvt;
		399
		400	use utf8;
		401	use strict 'vars';
		402	use Carp ();
		403	use Scalar::Util ();
		404	use List::Util ();
		405
		406	our $VERSION = 1;
		407	our $TERM;
		408	our @TERM_INIT; # should go, prevents async I/O etc.
		409	our @TERM_EXT; # should go, prevents async I/O etc.
		410	our @HOOKNAME;
		411	our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
		412	our %OPTION;
		413
		414	our $LIBDIR;
		415	our $RESNAME;
		416	our $RESCLASS;
		417	our $RXVTNAME;
		418
		419	our $NOCHAR = chr 0xffff;
		420
294	=head2 Variables in the C<urxvt> Package	421	=head2 Variables in the C<urxvt> Package
295		422
296	=over 4	423	=over 4
		424
		425	=item $urxvt::LIBDIR
		426
		427	The rxvt-unicode library directory, where, among other things, the perl
		428	modules and scripts are stored.
		429
		430	=item $urxvt::RESCLASS, $urxvt::RESCLASS
		431
		432	The resource class and name rxvt-unicode uses to look up X resources.
		433
		434	=item $urxvt::RXVTNAME
		435
		436	The basename of the installed binaries, usually C<urxvt>.
297		437
298	=item $urxvt::TERM	438	=item $urxvt::TERM
299		439
300	The current terminal. This variable stores the current C<urxvt::term>	440	The current terminal. This variable stores the current C<urxvt::term>
301	object, whenever a callback/hook is executing.	441	object, whenever a callback/hook is executing.
302		442
		443	=item @urxvt::TERM_INIT
		444
		445	All code references in this array will be called as methods of the next newly
		446	created C<urxvt::term> object (during the C<on_init> phase). The array
		447	gets cleared before the code references that were in it are being executed,
		448	so references can push themselves onto it again if they so desire.
		449
		450	This complements to the perl-eval command line option, but gets executed
		451	first.
		452
		453	=item @urxvt::TERM_EXT
		454
		455	Works similar to C<@TERM_INIT>, but contains perl package/class names, which
		456	get registered as normal extensions after calling the hooks in C<@TERM_INIT>
		457	but before other extensions. Gets cleared just like C<@TERM_INIT>.
		458
303	=back	459	=back
304		460
305	=head2 Functions in the C<urxvt> Package	461	=head2 Functions in the C<urxvt> Package
306		462
307	=over 4	463	=over 4
308		464
309	=item $term = new urxvt [arg...]
310
311	Creates a new terminal, very similar as if you had started it with
312	C<system $binfile, arg...>. Croaks (and probably outputs an error message)
313	if the new instance couldn't be created. Returns C<undef> if the new
314	instance didn't initialise perl, and the terminal object otherwise. The
315	C<init> and C<start> hooks will be called during the call.
316
317	=item urxvt::fatal $errormessage	465	=item urxvt::fatal $errormessage
318		466
319	Fatally aborts execution with the given error message. Avoid at all	467	Fatally aborts execution with the given error message (which should
320	costs! The only time this is acceptable is when the terminal process	468	include a trailing newline). Avoid at all costs! The only time this
321	starts up.	469	is acceptable (and useful) is in the init hook, where it prevents the
		470	terminal from starting up.
322		471
323	=item urxvt::warn $string	472	=item urxvt::warn $string
324		473
325	Calls C<rxvt_warn> with the given string which should not include a	474	Calls C<rxvt_warn> with the given string which should include a trailing
326	newline. The module also overwrites the C<warn> builtin with a function	475	newline. The module also overwrites the C<warn> builtin with a function
327	that calls this function.	476	that calls this function.
328		477
329	Using this function has the advantage that its output ends up in the	478	Using this function has the advantage that its output ends up in the
330	correct place, e.g. on stderr of the connecting urxvtc client.	479	correct place, e.g. on stderr of the connecting urxvtc client.
		480
		481	Messages have a size limit of 1023 bytes currently.
		482
		483	=item @terms = urxvt::termlist
		484
		485	Returns all urxvt::term objects that exist in this process, regardless of
		486	whether they are started, being destroyed etc., so be careful. Only term
		487	objects that have perl extensions attached will be returned (because there
		488	is no urxvt::term object associated with others).
331		489
332	=item $time = urxvt::NOW	490	=item $time = urxvt::NOW
333		491
334	Returns the "current time" (as per the event loop).	492	Returns the "current time" (as per the event loop).
335		493
…		…
337		495
338	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,	496	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
339	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,	497	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
340	Button4Mask, Button5Mask, AnyModifier	498	Button4Mask, Button5Mask, AnyModifier
341		499
		500	=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
		501	ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
		502	PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
		503	Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
		504	KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
		505	ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
		506	FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
		507
		508	=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
		509	EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
		510	GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
		511	UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
		512	ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
		513	CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
		514	SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
		515
342	Various constants for use in X events.	516	Various constants for use in X calls and event processing.
343		517
344	=back	518	=back
345		519
346	=head2 RENDITION	520	=head2 RENDITION
347		521
…		…
362		536
363	=item $rend = urxvt::OVERLAY_RSTYLE	537	=item $rend = urxvt::OVERLAY_RSTYLE
364		538
365	Return the rendition mask used for overlays by default.	539	Return the rendition mask used for overlays by default.
366		540
367	=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline	541	=item $rendbit = urxvt::RS_Bold, urxvt::RS_Italic, urxvt::RS_Blink,
		542	urxvt::RS_RVid, urxvt::RS_Uline
368		543
369	Return the bit that enabled bold, italic, blink, reverse-video and	544	Return the bit that enabled bold, italic, blink, reverse-video and
370	underline, respectively. To enable such a style, just logically OR it into	545	underline, respectively. To enable such a style, just logically OR it into
371	the bitset.	546	the bitset.
372		547
…		…
374		549
375	=item $background = urxvt::GET_BASEBG $rend	550	=item $background = urxvt::GET_BASEBG $rend
376		551
377	Return the foreground/background colour index, respectively.	552	Return the foreground/background colour index, respectively.
378		553
379	=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)	554	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
380		555
381	=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)	556	=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
		557
		558	=item $rend = urxvt::SET_COLOR $rend, $new_fg, $new_bg
382		559
383	Replace the foreground/background colour in the rendition mask with the	560	Replace the foreground/background colour in the rendition mask with the
384	specified one.	561	specified one.
385		562
386	=item $value = urxvt::GET_CUSTOM ($rend)	563	=item $value = urxvt::GET_CUSTOM $rend
387		564
388	Return the "custom" value: Every rendition has 5 bits for use by	565	Return the "custom" value: Every rendition has 5 bits for use by
389	extensions. They can be set and changed as you like and are initially	566	extensions. They can be set and changed as you like and are initially
390	zero.	567	zero.
391		568
392	=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)	569	=item $rend = urxvt::SET_CUSTOM $rend, $new_value
393		570
394	Change the custom value.	571	Change the custom value.
395		572
396	=back	573	=back
397		574
398	=cut	575	=cut
399		576
400	package urxvt;
401
402	use utf8;
403	use strict;
404	use Scalar::Util ();
405	use List::Util ();
406
407	our $TERM;
408	our @HOOKNAME;
409	our %OPTION;
410	our $LIBDIR;
411
412	BEGIN {	577	BEGIN {
413	urxvt->bootstrap;
414
415	# overwrite perl's warn	578	# overwrite perl's warn
416	*CORE::GLOBAL::warn = sub {	579	*CORE::GLOBAL::warn = sub {
417	my $msg = join "", @_;	580	my $msg = join "", @_;
418	$msg .= "\n"	581	$msg .= "\n"
419	unless $msg =~ /\n$/;	582	unless $msg =~ /\n$/;
420	urxvt::warn ($msg);	583	urxvt::warn ($msg);
421	};	584	};
422	}	585	}
423		586
424	my @hook_count;	587	no warnings 'utf8';
		588
		589	sub parse_resource {
		590	my ($term, $name, $isarg, $longopt, $flag, $value) = @_;
		591
		592	$term->scan_extensions;
		593
		594	my $r = $term->{meta}{resource};
		595	keys %$r; # reset iterator
		596	while (my ($k, $v) = each %$r) {
		597	my $pattern = $k;
		598	$pattern =~ y/./-/ if $isarg;
		599	my $prefix = $name;
		600	my $suffix;
		601	if ($pattern =~ /\-$/) {
		602	$prefix = substr $name, 0, length $pattern;
		603	$suffix = substr $name, length $pattern;
		604	}
		605	if ($pattern eq $prefix) {
		606	$name = "$urxvt::RESCLASS.$k$suffix";
		607
		608	push @{ $term->{perl_ext_3} }, $v->[0];
		609
		610	if ($v->[1] eq "boolean") {
		611	$term->put_option_db ($name, $flag ? "true" : "false");
		612	return 1;
		613	} else {
		614	$term->put_option_db ($name, $value);
		615	return 1 + 2;
		616	}
		617	}
		618	}
		619
		620	0
		621	}
		622
		623	sub usage {
		624	my ($term, $usage_type) = @_;
		625
		626	$term->scan_extensions;
		627
		628	my $r = $term->{meta}{resource};
		629
		630	for my $pattern (sort keys %$r) {
		631	my ($ext, $type, $desc) = @{ $r->{$pattern} };
		632
		633	$desc .= " (-pe $ext)";
		634
		635	if ($usage_type == 1) {
		636	$pattern =~ y/./-/;
		637	$pattern =~ s/-$/-.../g;
		638
		639	if ($type eq "boolean") {
		640	urxvt::log sprintf " -%-30s %s\n", "/+$pattern", $desc;
		641	} else {
		642	urxvt::log sprintf " -%-30s %s\n", "$pattern $type", $desc;
		643	}
		644	} else {
		645	$pattern =~ s/\.$/.*/g;
		646	urxvt::log sprintf " %-31s %s\n", "$pattern:", $type;
		647	}
		648	}
		649	}
		650
425	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};	651	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
426		652
427	sub verbose {	653	sub verbose {
428	my ($level, $msg) = @_;	654	my ($level, $msg) = @_;
429	warn "$msg\n" if $level <= $verbosity;	655	warn "$msg\n" if $level <= $verbosity;
430	}	656	}
431		657
432	# find on_xxx subs in the package and register them
433	# as hooks
434	sub register_package($) {
435	my ($pkg) = @_;
436
437	for my $htype (0.. $#HOOKNAME) {
438	my $name = $HOOKNAME[$htype];
439
440	my $ref = $pkg->can ("on_" . lc $name)
441	or next;
442
443	$TERM->{_hook}[$htype]{$pkg} = $ref;
444	$hook_count[$htype]++
445	or set_should_invoke $htype, 1;
446	}
447	}
448
449	my $extension_pkg = "extension0000";
450	my %extension_pkg;	658	my %extension_pkg;
451		659
452	# load a single script into its own package, once only	660	# load a single script into its own package, once only
453	sub extension_package($) {	661	sub extension_package($) {
454	my ($path) = @_;	662	my ($path) = @_;
455		663
456	$extension_pkg{$path} ||= do {	664	$extension_pkg{$path} ||= do {
457	my $pkg = "urxvt::" . ($extension_pkg++);	665	$path =~ /([^\/\\]+)$/;
		666	my $pkg = $1;
		667	$pkg =~ s/[^[:word:]]/_/g;
		668	$pkg = "urxvt::ext::$pkg";
458		669
459	verbose 3, "loading extension '$path' into package '$pkg'";	670	verbose 3, "loading extension '$path' into package '$pkg'";
		671
		672	(${"$pkg\::_NAME"} = $path) =~ s/^.*[\\\/]//; # hackish
460		673
461	open my $fh, "<:raw", $path	674	open my $fh, "<:raw", $path
462	or die "$path: $!";	675	or die "$path: $!";
463		676
464	my $source = "package $pkg; use strict; use utf8;\n"	677	my $source =
465	. "use base urxvt::term::proxy::;\n"	678	"package $pkg; use strict 'vars'; use utf8; no warnings 'utf8';\n"
466	. "#line 1 \"$path\"\n{\n"	679	. "#line 1 \"$path\"\n{\n"
467	. (do { local $/; <$fh> })	680	. (do { local $/; <$fh> })
468	. "\n};\n1";	681	. "\n};\n1";
469		682
		683	eval $source
470	eval $source or die "$path: $@";	684	or die "$path: $@";
471		685
472	$pkg	686	$pkg
473	}	687	}
474	}	688	}
475		689
…		…
478	# called by the rxvt core	692	# called by the rxvt core
479	sub invoke {	693	sub invoke {
480	local $TERM = shift;	694	local $TERM = shift;
481	my $htype = shift;	695	my $htype = shift;
482		696
483	if ($htype == 0) { # INIT	697	if ($htype == HOOK_INIT) {
484	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");	698	my @dirs = $TERM->perl_libdirs;
		699
		700	$TERM->scan_extensions;
		701
		702	my %ext_arg;
		703
485		704	{
486	my %want_ext;	705	my @init = @TERM_INIT;
		706	@TERM_INIT = ();
		707	$_->($TERM) for @init;
		708	my @pkg = @TERM_EXT;
		709	@TERM_EXT = ();
		710	$TERM->register_package ($_) for @pkg;
		711	}
487		712
		713	for (
488	for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {	714	(grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2),
		715	@{ delete $TERM->{perl_ext_3} }
		716	) {
489	if ($_ eq "default") {	717	if ($_ eq "default") {
490	$want_ext{$_}++ for qw(selection option-popup);	718
		719	$ext_arg{$_} = []
		720	for qw(selection option-popup selection-popup readline searchable-scrollback);
		721
		722	for ($TERM->_keysym_resources) {
		723	next if /^(?:string|command|builtin|builtin-string|perl)/;
		724	next unless /^([A-Za-z0-9_\-]+):/;
		725
		726	my $ext = $1;
		727
		728	$ext_arg{$ext} = [];
		729	}
		730
491	} elsif (/^-(.*)$/) {	731	} elsif (/^-(.*)$/) {
492	delete $want_ext{$1};	732	delete $ext_arg{$1};
		733
		734	} elsif (/^([^<]+)<(.*)>$/) {
		735	push @{ $ext_arg{$1} }, $2;
		736
493	} else {	737	} else {
494	$want_ext{$_}++;	738	$ext_arg{$_} ||= [];
495	}	739	}
496	}	740	}
497		741
498	for my $ext (keys %want_ext) {	742	for my $ext (sort keys %ext_arg) {
499	my @files = grep -f $_, map "$_/$ext", @dirs;	743	my @files = grep -f $_, map "$_/$ext", @dirs;
500		744
501	if (@files) {	745	if (@files) {
502	register_package extension_package $files[0];	746	$TERM->register_package (extension_package $files[0], $ext_arg{$ext});
503	} else {	747	} else {
504	warn "perl extension '$ext' not found in perl library search path\n";	748	warn "perl extension '$ext' not found in perl library search path\n";
505	}	749	}
506	}	750	}
		751
		752	eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval");
		753	warn $@ if $@;
507	}	754	}
508		755
509	$retval = undef;	756	$retval = undef;
510		757
511	if (my $cb = $TERM->{_hook}[$htype]) {	758	if (my $cb = $TERM->{_hook}[$htype]) {
512	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"	759	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
513	if $verbosity >= 10;	760	if $verbosity >= 10;
514		761
515	keys %$cb;	762	if ($htype == HOOK_ACTION) {
		763	# this hook is only sent to the extension with the name
		764	# matching the first arg
		765	my $pkg = shift;
		766	$pkg =~ y/-/_/;
		767	$pkg = "urxvt::ext::$pkg";
516		768
517	while (my ($pkg, $cb) = each %$cb) {	769	$cb = $cb->{$pkg}
518	eval {	770	or return undef; #TODO: maybe warn user?
519	$retval = $cb->(	771
520	$TERM->{_pkg}{$pkg} ||= do {	772	$cb = { $pkg => $cb };
521	my $proxy = bless { }, $pkg;
522	Scalar::Util::weaken ($proxy->{term} = $TERM);
523	$proxy
524	},
525	@_,
526	) and last;
527	};
528	warn $@ if $@;#d#
529	}	773	}
530	}
531		774
532	if ($htype == 1) { # DESTROY	775	for my $pkg (keys %$cb) {
533	# remove hooks if unused	776	my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg} || $TERM, @_) };
534	if (my $hook = $TERM->{_hook}) {	777	$retval ||= $retval_;
535	for my $htype (0..$#$hook) {	778
536	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }	779	if ($@) {
537	or set_should_invoke $htype, 0;	780	$TERM->ungrab; # better to lose the grab than the session
		781	warn $@;
538	}	782	}
539	}	783	}
540		784
		785	verbose 11, "$HOOKNAME[$htype] returning <$retval>"
		786	if $verbosity >= 11;
		787	}
		788
		789	if ($htype == HOOK_DESTROY) {
541	# clear package objects	790	# clear package objects
542	%$_ = () for values %{ $TERM->{_pkg} };	791	%$_ = () for values %{ $TERM->{_pkg} };
543		792
544	# clear package	793	# clear package
545	%$TERM = ();	794	%$TERM = ();
546	}	795	}
547		796
548	$retval	797	$retval
549	}	798	}
550		799
551	sub urxvt::term::proxy::AUTOLOAD {	800	sub SET_COLOR($$$) {
552	$urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/	801	SET_BGCOLOR (SET_FGCOLOR ($_[0], $_[1]), $_[2])
		802	}
		803
		804	sub rend2mask {
		805	no strict 'refs';
		806	my ($str, $mask) = (@_, 0);
		807	my %color = ( fg => undef, bg => undef );
		808	my @failed;
		809	for my $spec ( split /\s+/, $str ) {
		810	if ( $spec =~ /^([fb]g)[_:-]?(\d+)/i ) {
		811	$color{lc($1)} = $2;
		812	} else {
		813	my $neg = $spec =~ s/^[-^]//;
		814	unless ( exists &{"RS_$spec"} ) {
		815	push @failed, $spec;
		816	next;
		817	}
		818	my $cur = &{"RS_$spec"};
		819	if ( $neg ) {
		820	$mask &= ~$cur;
		821	} else {
		822	$mask |= $cur;
		823	}
		824	}
		825	}
		826	($mask, @color{qw(fg bg)}, \@failed)
		827	}
		828
		829	package urxvt::term::extension;
		830
		831	=head2 The C<urxvt::term::extension> class
		832
		833	Each extension attached to a terminal object is represented by
		834	a C<urxvt::term::extension> object.
		835
		836	You can use these objects, which are passed to all callbacks to store any
		837	state related to the terminal and extension instance.
		838
		839	The methods (And data members) documented below can be called on extension
		840	objects, in addition to call methods documented for the <urxvt::term>
		841	class.
		842
		843	=over 4
		844
		845	=item $urxvt_term = $self->{term}
		846
		847	Returns the C<urxvt::term> object associated with this instance of the
		848	extension. This member I<must not> be changed in any way.
		849
		850	=cut
		851
		852	our $AUTOLOAD;
		853
		854	sub AUTOLOAD {
		855	$AUTOLOAD =~ /:([^:]+)$/
553	or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";	856	or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
554		857
555	eval qq{	858	eval qq{
556	sub $urxvt::term::proxy::AUTOLOAD {	859	sub $AUTOLOAD {
557	my \$proxy = shift;	860	my \$proxy = shift;
558	\$proxy->{term}->$1 (\@_)	861	\$proxy->{term}->$1 (\@_)
559	}	862	}
560	1	863	1
561	} or die "FATAL: unable to compile method forwarder: $@";	864	} or die "FATAL: unable to compile method forwarder: $@";
562		865
563	goto &$urxvt::term::proxy::AUTOLOAD;	866	goto &$AUTOLOAD;
564	}	867	}
		868
		869	sub DESTROY {
		870	# nop
		871	}
		872
		873	# urxvt::destroy_hook (basically a cheap Guard:: implementation)
565		874
566	sub urxvt::destroy_hook::DESTROY {	875	sub urxvt::destroy_hook::DESTROY {
567	${$_[0]}->();	876	${$_[0]}->();
568	}	877	}
569		878
570	sub urxvt::destroy_hook(&) {	879	sub urxvt::destroy_hook(&) {
571	bless \shift, urxvt::destroy_hook::	880	bless \shift, urxvt::destroy_hook::
572	}	881	}
573		882
		883	=item $self->enable ($hook_name => $cb[, $hook_name => $cb..])
		884
		885	Dynamically enable the given hooks (named without the C<on_> prefix) for
		886	this extension, replacing any hook previously installed via C<enable> in
		887	this extension.
		888
		889	This is useful when you want to overwrite time-critical hooks only
		890	temporarily.
		891
		892	To install additional callbacks for the same hook, you can use the C<on>
		893	method of the C<urxvt::term> class.
		894
		895	=item $self->disable ($hook_name[, $hook_name..])
		896
		897	Dynamically disable the given hooks.
		898
		899	=cut
		900
		901	sub enable {
		902	my ($self, %hook) = @_;
		903	my $pkg = $self->{_pkg};
		904
		905	while (my ($name, $cb) = each %hook) {
		906	my $htype = $HOOKTYPE{uc $name};
		907	defined $htype
		908	or Carp::croak "unsupported hook type '$name'";
		909
		910	$self->set_should_invoke ($htype, +1)
		911	unless exists $self->{term}{_hook}[$htype]{$pkg};
		912
		913	$self->{term}{_hook}[$htype]{$pkg} = $cb;
		914	}
		915	}
		916
		917	sub disable {
		918	my ($self, @hook) = @_;
		919	my $pkg = $self->{_pkg};
		920
		921	for my $name (@hook) {
		922	my $htype = $HOOKTYPE{uc $name};
		923	defined $htype
		924	or Carp::croak "unsupported hook type '$name'";
		925
		926	$self->set_should_invoke ($htype, -1)
		927	if delete $self->{term}{_hook}[$htype]{$pkg};
		928	}
		929	}
		930
		931	=item $guard = $self->on ($hook_name => $cb[, $hook_name => $cb..])
		932
		933	Similar to the C<enable> enable, but installs additional callbacks for
		934	the given hook(s) (that is, it doesn't replace existing callbacks), and
		935	returns a guard object. When the guard object is destroyed the callbacks
		936	are disabled again.
		937
		938	=cut
		939
		940	sub urxvt::extension::on_disable::DESTROY {
		941	my $disable = shift;
		942
		943	my $term = delete $disable->{""};
		944
		945	while (my ($htype, $id) = each %$disable) {
		946	delete $term->{_hook}[$htype]{$id};
		947	$term->set_should_invoke ($htype, -1);
		948	}
		949	}
		950
		951	sub on {
		952	my ($self, %hook) = @_;
		953
		954	my $term = $self->{term};
		955
		956	my %disable = ( "" => $term );
		957
		958	while (my ($name, $cb) = each %hook) {
		959	my $htype = $HOOKTYPE{uc $name};
		960	defined $htype
		961	or Carp::croak "unsupported hook type '$name'";
		962
		963	$term->set_should_invoke ($htype, +1);
		964	$term->{_hook}[$htype]{ $disable{$htype} = $cb+0 }
		965	= sub { shift; $cb->($self, @_) }; # very ugly indeed
		966	}
		967
		968	bless \%disable, "urxvt::extension::on_disable"
		969	}
		970
		971	=item $self->bind_action ($hotkey, $action)
		972
		973	=item $self->x_resource ($pattern)
		974
		975	=item $self->x_resource_boolean ($pattern)
		976
		977	These methods support an additional C<%> prefix for C<$action> or
		978	C<$pattern> when called on an extension object, compared to the
		979	C<urxvt::term> methods of the same name - see the description of these
		980	methods in the C<urxvt::term> class for details.
		981
		982	=cut
		983
		984	sub bind_action {
		985	my ($self, $hotkey, $action) = @_;
		986	$action =~ s/^%:/$_[0]{_name}:/;
		987	$self->{term}->bind_action ($hotkey, $action)
		988	}
		989
		990	sub x_resource {
		991	my ($self, $name) = @_;
		992	$name =~ s/^%(\.|$)/$_[0]{_name}$1/;
		993	$self->{term}->x_resource ($name)
		994	}
		995
		996	sub x_resource_boolean {
		997	my ($self, $name) = @_;
		998	$name =~ s/^%(\.|$)/$_[0]{_name}$1/;
		999	$self->{term}->x_resource_boolean ($name)
		1000	}
		1001
		1002	=back
		1003
		1004	=cut
		1005
		1006	package urxvt::anyevent;
		1007
		1008	=head2 The C<urxvt::anyevent> Class
		1009
		1010	The sole purpose of this class is to deliver an interface to the
		1011	C<AnyEvent> module - any module using it will work inside urxvt without
		1012	further programming. The only exception is that you cannot wait on
		1013	condition variables, but non-blocking condvar use is ok.
		1014
		1015	In practical terms this means is that you cannot use blocking APIs, but
		1016	the non-blocking variant should work.
		1017
		1018	=cut
		1019
		1020	our $VERSION = '5.23';
		1021
		1022	$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
		1023	push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
		1024
		1025	sub timer {
		1026	my ($class, %arg) = @_;
		1027
		1028	my $cb = $arg{cb};
		1029
		1030	urxvt::timer
		1031	->new
		1032	->after ($arg{after}, $arg{interval})
		1033	->cb ($arg{interval} ? $cb : sub {
		1034	$_[0]->stop; # need to cancel manually
		1035	$cb->();
		1036	})
		1037	}
		1038
		1039	sub io {
		1040	my ($class, %arg) = @_;
		1041
		1042	my $cb = $arg{cb};
		1043	my $fd = fileno $arg{fh};
		1044	defined $fd or $fd = $arg{fh};
		1045
		1046	bless [$arg{fh}, urxvt::iow
		1047	->new
		1048	->fd ($fd)
		1049	->events (($arg{poll} =~ /r/ ? 1 : 0)
		1050	| ($arg{poll} =~ /w/ ? 2 : 0))
		1051	->start
		1052	->cb ($cb)
		1053	], urxvt::anyevent::
		1054	}
		1055
		1056	sub idle {
		1057	my ($class, %arg) = @_;
		1058
		1059	my $cb = $arg{cb};
		1060
		1061	urxvt::iw
		1062	->new
		1063	->start
		1064	->cb ($cb)
		1065	}
		1066
		1067	sub child {
		1068	my ($class, %arg) = @_;
		1069
		1070	my $cb = $arg{cb};
		1071
		1072	urxvt::pw
		1073	->new
		1074	->start ($arg{pid})
		1075	->cb (sub {
		1076	$_[0]->stop; # need to cancel manually
		1077	$cb->($_[0]->rpid, $_[0]->rstatus);
		1078	})
		1079	}
		1080
		1081	sub DESTROY {
		1082	$_[0][1]->stop;
		1083	}
		1084
		1085	# only needed for AnyEvent < 6 compatibility
		1086	sub one_event {
		1087	Carp::croak "AnyEvent->one_event blocking wait unsupported in urxvt, use a non-blocking API";
		1088	}
		1089
		1090	package urxvt::term;
		1091
574	=head2 The C<urxvt::term> Class	1092	=head2 The C<urxvt::term> Class
575		1093
576	=over 4	1094	=over 4
577		1095
		1096	=cut
		1097
		1098	# find on_xxx subs in the package and register them
		1099	# as hooks
		1100	sub register_package {
		1101	my ($self, $pkg, $argv) = @_;
		1102
		1103	no strict 'refs';
		1104
		1105	urxvt::verbose 6, "register package $pkg to $self";
		1106
		1107	@{"$pkg\::ISA"} = urxvt::term::extension::;
		1108
		1109	my $proxy = bless {
		1110	_pkg => $pkg,
		1111	_name => ${"$pkg\::_NAME"}, # hackish
		1112	argv => $argv,
		1113	}, $pkg;
		1114	Scalar::Util::weaken ($proxy->{term} = $self);
		1115
		1116	$self->{_pkg}{$pkg} = $proxy;
		1117
		1118	for my $name (@HOOKNAME) {
		1119	if (my $ref = $pkg->can ("on_" . lc $name)) {
		1120	$proxy->enable ($name => $ref);
		1121	}
		1122	}
		1123	}
		1124
		1125	sub perl_libdirs {
		1126	map { split /:/ }
		1127	$_[0]->resource ("perl_lib"),
		1128	$ENV{URXVT_PERL_LIB},
		1129	"$ENV{HOME}/.urxvt/ext",
		1130	"$LIBDIR/perl"
		1131	}
		1132
		1133	# scan for available extensions and collect their metadata
		1134	sub scan_extensions {
		1135	my ($self) = @_;
		1136
		1137	return if exists $self->{meta};
		1138
		1139	my @libdirs = perl_libdirs $self;
		1140
		1141	# return if $self->{meta_libdirs} eq join "\x00", @libdirs;#d#
		1142
		1143	# $self->{meta_libdirs} = join "\x00", @libdirs;#d#
		1144	$self->{meta} = \my %meta;
		1145
		1146	# first gather extensions
		1147	for my $dir (reverse @libdirs) {
		1148	opendir my $fh, $dir
		1149	or next;
		1150	for my $ext (readdir $fh) {
		1151	$ext !~ /^\./
		1152	and open my $fh, "<", "$dir/$ext"
		1153	or next;
		1154
		1155	my %ext = (dir => $dir);
		1156
		1157	while (<$fh>) {
		1158	if (/^#:META:(?:X_)?RESOURCE:(.*)/) {
		1159	my ($pattern, $type, $desc) = split /:/, $1;
		1160	$pattern =~ s/^%(\.|$)/$ext$1/g; # % in pattern == extension name
		1161	if ($pattern =~ /[^a-zA-Z0-9\-\.]/) {
		1162	warn "$dir/$ext: meta resource '$pattern' contains illegal characters (not alphanumeric nor . nor *)\n";
		1163	} else {
		1164	$ext{resource}{$pattern} = [$ext, $type, $desc];
		1165	}
		1166	} elsif (/^\s*(?:#|$)/) {
		1167	# skip other comments and empty lines
		1168	} else {
		1169	last; # stop parsing on first non-empty non-comment line
		1170	}
		1171	}
		1172
		1173	$meta{ext}{$ext} = \%ext;
		1174	}
		1175	}
		1176
		1177	# and now merge resources
		1178	while (my ($k, $v) = each %{ $meta{ext} }) {
		1179	#TODO: should check for extensions overriding each other
		1180	%{ $meta{resource} } = (%{ $meta{resource} }, %{ $v->{resource} });
		1181	}
		1182	}
		1183
		1184	=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
		1185
		1186	Creates a new terminal, very similar as if you had started it with system
		1187	C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
		1188	hash which defines the environment of the new terminal.
		1189
		1190	Croaks (and probably outputs an error message) if the new instance
		1191	couldn't be created. Returns C<undef> if the new instance didn't
		1192	initialise perl, and the terminal object otherwise. The C<init> and
		1193	C<start> hooks will be called before this call returns, and are free to
		1194	refer to global data (which is race free).
		1195
		1196	=cut
		1197
		1198	sub new {
		1199	my ($class, $env, @args) = @_;
		1200
		1201	$env or Carp::croak "environment hash missing in call to urxvt::term->new";
		1202	@args or Carp::croak "name argument missing in call to urxvt::term->new";
		1203
		1204	_new ([ map "$_=$env->{$_}", keys %$env ], \@args);
		1205	}
		1206
578	=item $term->destroy	1207	=item $term->destroy
579		1208
580	Destroy the terminal object (close the window, free resources etc.).	1209	Destroy the terminal object (close the window, free resources
		1210	etc.). Please note that urxvt will not exit as long as any event
		1211	watchers (timers, io watchers) are still active.
		1212
		1213	=item $term->exec_async ($cmd[, @args])
		1214
		1215	Works like the combination of the C<fork>/C<exec> builtins, which executes
		1216	("starts") programs in the background. This function takes care of setting
		1217	the user environment before exec'ing the command (e.g. C<PATH>) and should
		1218	be preferred over explicit calls to C<exec> or C<system>.
		1219
		1220	Returns the pid of the subprocess or C<undef> on error.
		1221
		1222	=cut
		1223
		1224	sub exec_async {
		1225	my $self = shift;
		1226
		1227	my $pid = fork;
		1228
		1229	return $pid
		1230	if !defined $pid or $pid;
		1231
		1232	%ENV = %{ $self->env };
		1233
		1234	exec @_;
		1235	urxvt::_exit 255;
		1236	}
581		1237
582	=item $isset = $term->option ($optval[, $set])	1238	=item $isset = $term->option ($optval[, $set])
583		1239
584	Returns true if the option specified by C<$optval> is enabled, and	1240	Returns true if the option specified by C<$optval> is enabled, and
585	optionally change it. All option values are stored by name in the hash	1241	optionally change it. All option values are stored by name in the hash
586	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.	1242	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
587		1243
588	Here is a a likely non-exhaustive list of option names, please see the	1244	Here is a likely non-exhaustive list of option names, please see the
589	source file F</src/optinc.h> to see the actual list:	1245	source file F</src/optinc.h> to see the actual list:
590		1246
591	borderLess console cursorBlink cursorUnderline hold iconic insecure	1247	borderLess buffered console cursorBlink cursorUnderline hold iconic
592	intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage	1248	insecure intensityStyles iso14755 iso14755_52 jumpScroll loginShell
		1249	mapAlert meta8 mouseWheelScrollPage override_redirect pastableTabs
593	pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating	1250	pointerBlank reverseVideo scrollBar scrollBar_floating scrollBar_right
594	scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer	1251	scrollTtyKeypress scrollTtyOutput scrollWithBuffer secondaryScreen
595	secondaryScreen secondaryScroll skipBuiltinGlyphs transparent	1252	secondaryScroll skipBuiltinGlyphs skipScroll transparent tripleclickwords
596	tripleclickwords utmpInhibit visualBell	1253	urgentOnBell utmpInhibit visualBell
597		1254
598	=item $value = $term->resource ($name[, $newval])	1255	=item $value = $term->resource ($name[, $newval])
599		1256
600	Returns the current resource value associated with a given name and	1257	Returns the current resource value associated with a given name and
601	optionally sets a new value. Setting values is most useful in the C<init>	1258	optionally sets a new value. Setting values is most useful in the C<init>
…		…
610	likely change).	1267	likely change).
611		1268
612	Please note that resource strings will currently only be freed when the	1269	Please note that resource strings will currently only be freed when the
613	terminal is destroyed, so changing options frequently will eat memory.	1270	terminal is destroyed, so changing options frequently will eat memory.
614		1271
615	Here is a a likely non-exhaustive list of resource names, not all of which	1272	Here is a likely non-exhaustive list of resource names, not all of which
616	are supported in every build, please see the source file F</src/rsinc.h>	1273	are supported in every build, please see the source file F</src/rsinc.h>
617	to see the actual list:	1274	to see the actual list:
618		1275
619	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont	1276	answerbackstring backgroundPixmap backspace_key blurradius
620	borderLess color cursorBlink cursorUnderline cutchars delete_key	1277	boldFont boldItalicFont borderLess buffered chdir color cursorBlink
621	display_name embed ext_bwidth fade font geometry hold iconName	1278	cursorUnderline cutchars delete_key depth display_name embed ext_bwidth
622	imFont imLocale inputMethod insecure int_bwidth intensityStyles	1279	fade font geometry hold iconName iconfile imFont imLocale inputMethod
		1280	insecure int_bwidth intensityStyles iso14755 iso14755_52 italicFont
623	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier	1281	jumpScroll letterSpace lineSpace loginShell mapAlert meta8 modifier
624	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2	1282	mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
625	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd	1283	perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
626	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating	1284	preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
627	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput	1285	scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
628	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle	1286	scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
629	shade term_name title transparent transparent_all tripleclickwords	1287	secondaryScreen secondaryScroll shade skipBuiltinGlyphs skipScroll
		1288	term_name title transient_for transparent tripleclickwords urgentOnBell
630	utmpInhibit visualBell	1289	utmpInhibit visualBell
631		1290
632	=cut	1291	=cut
633		1292
634	sub urxvt::term::resource($$;$) {	1293	sub resource($$;$) {
635	my ($self, $name) = (shift, shift);	1294	my ($self, $name) = (shift, shift);
636	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);	1295	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
637	&urxvt::term::_resource	1296	goto &urxvt::term::_resource
638	}	1297	}
		1298
		1299	=item $value = $term->x_resource ($pattern)
		1300
		1301	Returns the X-Resource for the given pattern, excluding the program or
		1302	class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
		1303	same value as used by this instance of rxvt-unicode. Returns C<undef> if no
		1304	resource with that pattern exists.
		1305
		1306	Extensions that define extra resources also need to call this method
		1307	to access their values.
		1308
		1309	If the method is called on an extension object (basically, from an
		1310	extension), then the special prefix C<%.> will be replaced by the name of
		1311	the extension and a dot, and the lone string C<%> will be replaced by the
		1312	extension name itself. This makes it possible to code extensions so you
		1313	can rename them and get a new set of resources without having to change
		1314	the actual code.
		1315
		1316	This method should only be called during the C<on_start> hook, as there is
		1317	only one resource database per display, and later invocations might return
		1318	the wrong resources.
		1319
		1320	=item $value = $term->x_resource_boolean ($pattern)
		1321
		1322	Like C<x_resource>, above, but interprets the string value as a boolean
		1323	and returns C<1> for true values, C<0> for false values and C<undef> if
		1324	the resource or option isn't specified.
		1325
		1326	You should always use this method to parse boolean resources.
		1327
		1328	=cut
		1329
		1330	sub x_resource_boolean {
		1331	my $res = &x_resource;
		1332
		1333	$res =~ /^\s*(?:true|yes|on|1)\s*$/i ? 1 : defined $res && 0
		1334	}
		1335
		1336	=item $success = $term->bind_action ($key, $action)
		1337
		1338	Adds a key binding exactly as specified via a C<keysym> resource. See the
		1339	C<keysym> resource in the urxvt(1) manpage.
		1340
		1341	To add default bindings for an extension, the extension should call C<<
		1342	->bind_action >> on it's C<init> hook for every such binding. Doing it
		1343	in the C<init> hook allows users the override or remove the the binding
		1344	again.
		1345
		1346	Example: the C<searchable-scrollback> by default binds itself
		1347	on C<Meta-s>, using C<< $self->bind_action >>, which calls C<<
		1348	$term->bind_action >>.
		1349
		1350	sub init {
		1351	my ($self) = @_;
		1352
		1353	$self->bind_action ("M-s" => "%:start");
		1354	}
639		1355
640	=item $rend = $term->rstyle ([$new_rstyle])	1356	=item $rend = $term->rstyle ([$new_rstyle])
641		1357
642	Return and optionally change the current rendition. Text that is output by	1358	Return and optionally change the current rendition. Text that is output by
643	the terminal application will use this style.	1359	the terminal application will use this style.
…		…
651		1367
652	=item ($row, $col) = $term->selection_beg ([$row, $col])	1368	=item ($row, $col) = $term->selection_beg ([$row, $col])
653		1369
654	=item ($row, $col) = $term->selection_end ([$row, $col])	1370	=item ($row, $col) = $term->selection_end ([$row, $col])
655		1371
656	Return the current values of the selection mark, begin or end positions,	1372	Return the current values of the selection mark, begin or end positions.
657	and optionally set them to new values.
658		1373
		1374	When arguments are given, then the selection coordinates are set to
		1375	C<$row> and C<$col>, and the selection screen is set to the current
		1376	screen.
		1377
		1378	=item $screen = $term->selection_screen ([$screen])
		1379
		1380	Returns the current selection screen, and then optionally sets it.
		1381
		1382	=item $term->selection_make ($eventtime[, $rectangular])
		1383
		1384	Tries to make a selection as set by C<selection_beg> and
		1385	C<selection_end>. If C<$rectangular> is true (default: false), a
		1386	rectangular selection will be made. This is the preferred function to make
		1387	a selection.
		1388
659	=item $success = $term->selection_grab ($eventtime)	1389	=item $success = $term->selection_grab ($eventtime[, $clipboard])
660		1390
661	Try to request the primary selection from the server (for example, as set	1391	Try to acquire ownership of the primary (clipboard if C<$clipboard> is
662	by the next method).	1392	true) selection from the server. The corresponding text can be set
		1393	with the next method. No visual feedback will be given. This function
		1394	is mostly useful from within C<on_sel_grab> hooks.
663		1395
664	=item $oldtext = $term->selection ([$newtext])	1396	=item $oldtext = $term->selection ([$newtext, $clipboard])
665		1397
666	Return the current selection text and optionally replace it by C<$newtext>.	1398	Return the current selection (clipboard if C<$clipboard> is true) text
		1399	and optionally replace it by C<$newtext>.
667		1400
		1401	=item $term->selection_clear ([$clipboard])
		1402
		1403	Revoke ownership of the primary (clipboard if C<$clipboard> is true) selection.
		1404
668	#=item $term->overlay ($x, $y, $text)	1405	=item $term->overlay_simple ($x, $y, $text)
669	#	1406
670	#Create a simple multi-line overlay box. See the next method for details.	1407	Create a simple multi-line overlay box. See the next method for details.
671	#	1408
672	#=cut	1409	=cut
673	#	1410
674	#sub urxvt::term::scr_overlay {	1411	sub overlay_simple {
675	# my ($self, $x, $y, $text) = @_;	1412	my ($self, $x, $y, $text) = @_;
676	#	1413
677	# my @lines = split /\n/, $text;	1414	my @lines = split /\n/, $text;
678	#	1415
679	# my $w = 0;	1416	my $w = List::Util::max map $self->strwidth ($_), @lines;
680	# for (map $self->strwidth ($_), @lines) {	1417
681	# $w = $_ if $w < $_;
682	# }
683	#
684	# $self->scr_overlay_new ($x, $y, $w, scalar @lines);	1418	my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
685	# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;	1419	$overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
686	#}	1420
		1421	$overlay
		1422	}
687		1423
688	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])	1424	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
689		1425
690	Create a new (empty) overlay at the given position with the given	1426	Create a new (empty) overlay at the given position with the given
691	width/height. C<$rstyle> defines the initial rendition style	1427	width/height. C<$rstyle> defines the initial rendition style
…		…
702		1438
703	The methods currently supported on C<urxvt::overlay> objects are:	1439	The methods currently supported on C<urxvt::overlay> objects are:
704		1440
705	=over 4	1441	=over 4
706		1442
707	=item $overlay->set ($x, $y, $text, $rend)	1443	=item $overlay->set ($x, $y, $text[, $rend])
708		1444
709	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts	1445	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts
710	text in rxvt-unicode's special encoding and an array of rendition values	1446	text in rxvt-unicode's special encoding and an array of rendition values
711	at a specific position inside the overlay.	1447	at a specific position inside the overlay.
712		1448
		1449	If C<$rend> is missing, then the rendition will not be changed.
		1450
713	=item $overlay->hide	1451	=item $overlay->hide
714		1452
715	If visible, hide the overlay, but do not destroy it.	1453	If visible, hide the overlay, but do not destroy it.
716		1454
717	=item $overlay->show	1455	=item $overlay->show
…		…
726	C<$event> I<must> be the event causing the menu to pop up (a button event,	1464	C<$event> I<must> be the event causing the menu to pop up (a button event,
727	currently).	1465	currently).
728		1466
729	=cut	1467	=cut
730		1468
731	sub urxvt::term::popup {	1469	sub popup {
732	my ($self, $event) = @_;	1470	my ($self, $event) = @_;
733		1471
734	$self->grab ($event->{time}, 1)	1472	$self->grab ($event->{time}, 1)
735	or return;	1473	or return;
736		1474
…		…
758		1496
759	=item $string = $term->locale_decode ($octets)	1497	=item $string = $term->locale_decode ($octets)
760		1498
761	Convert the given locale-encoded octets into a perl string.	1499	Convert the given locale-encoded octets into a perl string.
762		1500
		1501	=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
		1502
		1503	XORs the rendition values in the given span with the provided value
		1504	(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
		1505	refresh hooks to provide effects similar to the selection.
		1506
		1507	=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
		1508
		1509	Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
		1510	whitespace will additionally be xored with the C<$rstyle2>, which defaults
		1511	to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
		1512	it instead. Both styles I<MUST NOT> contain font styles.
		1513
		1514	=item $term->scr_bell
		1515
		1516	Ring the bell!
		1517
763	=item $term->scr_add_lines ($string)	1518	=item $term->scr_add_lines ($string)
764		1519
765	Write the given text string to the screen, as if output by the application	1520	Write the given text string to the screen, as if output by the application
766	running inside the terminal. It may not contain command sequences (escape	1521	running inside the terminal. It may not contain command sequences (escape
767	codes), but is free to use line feeds, carriage returns and tabs. The	1522	codes - see C<cmd_parse> for that), but is free to use line feeds,
768	string is a normal text string, not in locale-dependent encoding.	1523	carriage returns and tabs. The string is a normal text string, not in
		1524	locale-dependent encoding.
769		1525
770	Normally its not a good idea to use this function, as programs might be	1526	Normally its not a good idea to use this function, as programs might be
771	confused by changes in cursor position or scrolling. Its useful inside a	1527	confused by changes in cursor position or scrolling. Its useful inside a
772	C<on_add_lines> hook, though.	1528	C<on_add_lines> hook, though.
773		1529
		1530	=item $term->scr_change_screen ($screen)
		1531
		1532	Switch to given screen - 0 primary, 1 secondary.
		1533
774	=item $term->cmd_parse ($octets)	1534	=item $term->cmd_parse ($octets)
775		1535
776	Similar to C<scr_add_lines>, but the argument must be in the	1536	Similar to C<scr_add_lines>, but the argument must be in the
777	locale-specific encoding of the terminal and can contain command sequences	1537	locale-specific encoding of the terminal and can contain command sequences
778	(escape codes) that will be interpreted.	1538	(escape codes) that will be interpreted.
779		1539
780	=item $term->tt_write ($octets)	1540	=item $term->tt_write ($octets)
781		1541
782	Write the octets given in C<$data> to the tty (i.e. as program input). To	1542	Write the octets given in C<$octets> to the tty (i.e. as user input
		1543	to the program, see C<cmd_parse> for the opposite direction). To pass
783	pass characters instead of octets, you should convert your strings first	1544	characters instead of octets, you should convert your strings first to the
784	to the locale-specific encoding using C<< $term->locale_encode >>.	1545	locale-specific encoding using C<< $term->locale_encode >>.
		1546
		1547	=item $term->tt_write_user_input ($octets)
		1548
		1549	Like C<tt_write>, but should be used when writing strings in response to
		1550	the user pressing a key, to invoke the additional actions requested by
		1551	the user for that case (C<tt_write> doesn't do that).
		1552
		1553	The typical use case would be inside C<on_action> hooks.
		1554
		1555	=item $term->tt_paste ($octets)
		1556
		1557	Write the octets given in C<$octets> to the tty as a paste, converting NL to
		1558	CR and bracketing the data with control sequences if bracketed paste mode
		1559	is set.
		1560
		1561	=item $old_events = $term->pty_ev_events ([$new_events])
		1562
		1563	Replaces the event mask of the pty watcher by the given event mask. Can
		1564	be used to suppress input and output handling to the pty/tty. See the
		1565	description of C<< urxvt::timer->events >>. Make sure to always restore
		1566	the previous value.
		1567
		1568	=item $fd = $term->pty_fd
		1569
		1570	Returns the master file descriptor for the pty in use, or C<-1> if no pty
		1571	is used.
785		1572
786	=item $windowid = $term->parent	1573	=item $windowid = $term->parent
787		1574
788	Return the window id of the toplevel window.	1575	Return the window id of the toplevel window.
789		1576
790	=item $windowid = $term->vt	1577	=item $windowid = $term->vt
791		1578
792	Return the window id of the terminal window.	1579	Return the window id of the terminal window.
793		1580
		1581	=item $term->vt_emask_add ($x_event_mask)
		1582
		1583	Adds the specified events to the vt event mask. Useful e.g. when you want
		1584	to receive pointer events all the times:
		1585
		1586	$term->vt_emask_add (urxvt::PointerMotionMask);
		1587
		1588	=item $term->set_urgency ($set)
		1589
		1590	Enable/disable the urgency hint on the toplevel window.
		1591
		1592	=item $term->focus_in
		1593
		1594	=item $term->focus_out
		1595
		1596	=item $term->key_press ($state, $keycode[, $time])
		1597
		1598	=item $term->key_release ($state, $keycode[, $time])
		1599
		1600	Deliver various fake events to to terminal.
		1601
794	=item $window_width = $term->width	1602	=item $window_width = $term->width
795		1603
796	=item $window_height = $term->height	1604	=item $window_height = $term->height
797		1605
798	=item $font_width = $term->fwidth	1606	=item $font_width = $term->fwidth
…		…
811		1619
812	=item $max_scrollback = $term->saveLines	1620	=item $max_scrollback = $term->saveLines
813		1621
814	=item $nrow_plus_saveLines = $term->total_rows	1622	=item $nrow_plus_saveLines = $term->total_rows
815		1623
816	=item $lines_in_scrollback = $term->nsaved	1624	=item $topmost_scrollback_row = $term->top_row
817		1625
818	Return various integers describing terminal characteristics.	1626	Return various integers describing terminal characteristics.
		1627
		1628	=item $x_display = $term->display_id
		1629
		1630	Return the DISPLAY used by rxvt-unicode.
		1631
		1632	=item $lc_ctype = $term->locale
		1633
		1634	Returns the LC_CTYPE category string used by this rxvt-unicode.
		1635
		1636	=item $env = $term->env
		1637
		1638	Returns a copy of the environment in effect for the terminal as a hashref
		1639	similar to C<\%ENV>.
		1640
		1641	=item @envv = $term->envv
		1642
		1643	Returns the environment as array of strings of the form C<VAR=VALUE>.
		1644
		1645	=item @argv = $term->argv
		1646
		1647	Return the argument vector as this terminal, similar to @ARGV, but
		1648	includes the program name as first element.
		1649
		1650	=cut
		1651
		1652	sub env {
		1653	+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), $_[0]->envv }
		1654	}
819		1655
820	=item $modifiermask = $term->ModLevel3Mask	1656	=item $modifiermask = $term->ModLevel3Mask
821		1657
822	=item $modifiermask = $term->ModMetaMask	1658	=item $modifiermask = $term->ModMetaMask
823		1659
824	=item $modifiermask = $term->ModNumLockMask	1660	=item $modifiermask = $term->ModNumLockMask
825		1661
826	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often	1662	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
827	AltGr), the meta key (often Alt) and the num lock key, if applicable.	1663	AltGr), the meta key (often Alt) and the num lock key, if applicable.
828		1664
		1665	=item $screen = $term->current_screen
		1666
		1667	Returns the currently displayed screen (0 primary, 1 secondary).
		1668
		1669	=item $cursor_is_hidden = $term->hidden_cursor
		1670
		1671	Returns whether the cursor is currently hidden or not.
		1672
829	=item $view_start = $term->view_start ([$newvalue])	1673	=item $view_start = $term->view_start ([$newvalue])
830		1674
831	Returns the negative row number of the topmost line. Minimum value is	1675	Returns the row number of the topmost displayed line. Maximum value is
832	C<0>, which displays the normal terminal contents. Larger values scroll	1676	C<0>, which displays the normal terminal contents. Lower values scroll
833	this many lines into the scrollback buffer.	1677	this many lines into the scrollback buffer.
834		1678
835	=item $term->want_refresh	1679	=item $term->want_refresh
836		1680
837	Requests a screen refresh. At the next opportunity, rxvt-unicode will	1681	Requests a screen refresh. At the next opportunity, rxvt-unicode will
…		…
840		1684
841	Used after changing terminal contents to display them.	1685	Used after changing terminal contents to display them.
842		1686
843	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])	1687	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
844		1688
845	Returns the text of the entire row with number C<$row_number>. Row C<0>	1689	Returns the text of the entire row with number C<$row_number>. Row C<< $term->top_row >>
846	is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost	1690	is the topmost terminal line, row C<< $term->nrow-1 >> is the bottommost
847	terminal line. The scrollback buffer starts at line C<-1> and extends to
848	line C<< -$term->nsaved >>. Nothing will be returned if a nonexistent line	1691	terminal line. Nothing will be returned if a nonexistent line
849	is requested.	1692	is requested.
850		1693
851	If C<$new_text> is specified, it will replace characters in the current	1694	If C<$new_text> is specified, it will replace characters in the current
852	line, starting at column C<$start_col> (default C<0>), which is useful	1695	line, starting at column C<$start_col> (default C<0>), which is useful
853	to replace only parts of a line. The font index in the rendition will	1696	to replace only parts of a line. The font index in the rendition will
854	automatically be updated.	1697	automatically be updated.
855		1698
856	C<$text> is in a special encoding: tabs and wide characters that use more	1699	C<$text> is in a special encoding: tabs and wide characters that use more
857	than one cell when displayed are padded with urxvt::NOCHAR characters	1700	than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
858	(C<chr 65535>). Characters with combining characters and other characters	1701	characters. Characters with combining characters and other characters that
859	that do not fit into the normal tetx encoding will be replaced with	1702	do not fit into the normal text encoding will be replaced with characters
860	characters in the private use area.	1703	in the private use area.
861		1704
862	You have to obey this encoding when changing text. The advantage is	1705	You have to obey this encoding when changing text. The advantage is
863	that C<substr> and similar functions work on screen cells and not on	1706	that C<substr> and similar functions work on screen cells and not on
864	characters.	1707	characters.
865		1708
…		…
916	Return the row number of the first/last row of the line, respectively.	1759	Return the row number of the first/last row of the line, respectively.
917		1760
918	=item $offset = $line->offset_of ($row, $col)	1761	=item $offset = $line->offset_of ($row, $col)
919		1762
920	Returns the character offset of the given row|col pair within the logical	1763	Returns the character offset of the given row|col pair within the logical
921	line.	1764	line. Works for rows outside the line, too, and returns corresponding
		1765	offsets outside the string.
922		1766
923	=item ($row, $col) = $line->coord_of ($offset)	1767	=item ($row, $col) = $line->coord_of ($offset)
924		1768
925	Translates a string offset into terminal coordinates again.	1769	Translates a string offset into terminal coordinates again.
926		1770
927	=back	1771	=back
928		1772
929	=cut	1773	=cut
930		1774
931	sub urxvt::term::line {	1775	sub line {
932	my ($self, $row) = @_;	1776	my ($self, $row) = @_;
933		1777
934	my $maxrow = $self->nrow - 1;	1778	my $maxrow = $self->nrow - 1;
935		1779
936	my ($beg, $end) = ($row, $row);	1780	my ($beg, $end) = ($row, $row);
…		…
948	}	1792	}
949		1793
950	sub urxvt::line::t {	1794	sub urxvt::line::t {
951	my ($self) = @_;	1795	my ($self) = @_;
952		1796
953	if (@_ > 1)	1797	if (@_ > 1) {
954	{
955	$self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})	1798	$self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
956	for $self->{beg} .. $self->{end};	1799	for $self->{beg} .. $self->{end};
957	}	1800	}
958		1801
959	defined wantarray &&	1802	defined wantarray &&
960	substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),	1803	substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),
961	0, $self->{len}	1804	0, $self->{len}
962	}	1805	}
963		1806
964	sub urxvt::line::r {	1807	sub urxvt::line::r {
965	my ($self) = @_;	1808	my ($self) = @_;
966		1809
967	if (@_ > 1)	1810	if (@_ > 1) {
968	{
969	$self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})	1811	$self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
970	for $self->{beg} .. $self->{end};	1812	for $self->{beg} .. $self->{end};
971	}	1813	}
972		1814
973	if (defined wantarray) {	1815	if (defined wantarray) {
974	my $rend = [	1816	my $rend = [
975	map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}	1817	map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}
976	];	1818	];
…		…
1000	$offset / $self->{ncol} + $self->{beg},	1842	$offset / $self->{ncol} + $self->{beg},
1001	$offset % $self->{ncol}	1843	$offset % $self->{ncol}
1002	)	1844	)
1003	}	1845	}
1004		1846
1005	=item ($row, $col) = $line->coord_of ($offset)
1006	=item $text = $term->special_encode $string	1847	=item $text = $term->special_encode $string
1007		1848
1008	Converts a perl string into the special encoding used by rxvt-unicode,	1849	Converts a perl string into the special encoding used by rxvt-unicode,
1009	where one character corresponds to one screen cell. See	1850	where one character corresponds to one screen cell. See
1010	C<< $term->ROW_t >> for details.	1851	C<< $term->ROW_t >> for details.
1011		1852
1012	=item $string = $term->special_decode $text	1853	=item $string = $term->special_decode $text
1013		1854
1014	Converts rxvt-unicodes text reprsentation into a perl string. See	1855	Converts rxvt-unicodes text representation into a perl string. See
1015	C<< $term->ROW_t >> for details.	1856	C<< $term->ROW_t >> for details.
1016		1857
		1858	=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
		1859
		1860	=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
		1861
		1862	Register/unregister a synchronous button grab. See the XGrabButton
		1863	manpage.
		1864
		1865	=item $success = $term->grab ($eventtime[, $sync])
		1866
		1867	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
		1868	synchronous (C<$sync> is true). Also remembers the grab timestamp.
		1869
		1870	=item $term->allow_events_async
		1871
		1872	Calls XAllowEvents with AsyncBoth for the most recent grab.
		1873
		1874	=item $term->allow_events_sync
		1875
		1876	Calls XAllowEvents with SyncBoth for the most recent grab.
		1877
		1878	=item $term->allow_events_replay
		1879
		1880	Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
		1881	recent grab.
		1882
		1883	=item $term->ungrab
		1884
		1885	Calls XUngrabPointer and XUngrabKeyboard for the most recent grab. Is called automatically on
		1886	evaluation errors, as it is better to lose the grab in the error case as
		1887	the session.
		1888
		1889	=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
		1890
		1891	=item $atom_name = $term->XGetAtomName ($atom)
		1892
		1893	=item @atoms = $term->XListProperties ($window)
		1894
		1895	=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
		1896
		1897	=item $term->XChangeProperty ($window, $property, $type, $format, $octets)
		1898
		1899	=item $term->XDeleteProperty ($window, $property)
		1900
		1901	=item $window = $term->DefaultRootWindow
		1902
		1903	=item $term->XReparentWindow ($window, $parent, [$x, $y])
		1904
		1905	=item $term->XMapWindow ($window)
		1906
		1907	=item $term->XUnmapWindow ($window)
		1908
		1909	=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
		1910
		1911	=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
		1912
		1913	=item $term->XChangeInput ($window, $add_events[, $del_events])
		1914
		1915	=item $keysym = $term->XStringToKeysym ($string)
		1916
		1917	=item $string = $term->XKeysymToString ($keysym)
		1918
		1919	Various X or X-related functions. The C<$term> object only serves as
		1920	the source of the display, otherwise those functions map more-or-less
		1921	directly onto the X functions of the same name.
		1922
1017	=back	1923	=back
1018		1924
		1925	=cut
		1926
		1927	package urxvt::popup;
		1928
1019	=head2 The C<urxvt::popup> Class	1929	=head2 The C<urxvt::popup> Class
1020		1930
1021	=over 4	1931	=over 4
1022		1932
1023	=cut	1933	=cut
1024
1025	package urxvt::popup;
1026		1934
1027	sub add_item {	1935	sub add_item {
1028	my ($self, $item) = @_;	1936	my ($self, $item) = @_;
1029		1937
		1938	$item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal};
		1939	$item->{rend}{hover} = "\x1b[0;30;46m" unless exists $item->{rend}{hover};
		1940	$item->{rend}{active} = "\x1b[m" unless exists $item->{rend}{active};
		1941
		1942	$item->{render} ||= sub { $_[0]{text} };
		1943
1030	push @{ $self->{item} }, $item;	1944	push @{ $self->{item} }, $item;
1031	}	1945	}
		1946
		1947	=item $popup->add_title ($title)
		1948
		1949	Adds a non-clickable title to the popup.
		1950
		1951	=cut
		1952
		1953	sub add_title {
		1954	my ($self, $title) = @_;
		1955
		1956	$self->add_item ({
		1957	rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
		1958	text => $title,
		1959	activate => sub { },
		1960	});
		1961	}
		1962
		1963	=item $popup->add_separator ([$sepchr])
		1964
		1965	Creates a separator, optionally using the character given as C<$sepchr>.
		1966
		1967	=cut
		1968
		1969	sub add_separator {
		1970	my ($self, $sep) = @_;
		1971
		1972	$sep ||= "=";
		1973
		1974	$self->add_item ({
		1975	rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
		1976	text => "",
		1977	render => sub { $sep x $self->{term}->ncol },
		1978	activate => sub { },
		1979	});
		1980	}
		1981
		1982	=item $popup->add_button ($text, $cb)
		1983
		1984	Adds a clickable button to the popup. C<$cb> is called whenever it is
		1985	selected.
		1986
		1987	=cut
1032		1988
1033	sub add_button {	1989	sub add_button {
1034	my ($self, $text, $cb) = @_;	1990	my ($self, $text, $cb) = @_;
1035		1991
1036	$self->add_item ({ type => "button", text => "[ $text ]", activate => $cb,	1992	$self->add_item ({ type => "button", text => $text, activate => $cb});
1037	render => sub { $_[0]{text} },
1038	});
1039	}	1993	}
		1994
		1995	=item $popup->add_toggle ($text, $initial_value, $cb)
		1996
		1997	Adds a toggle/checkbox item to the popup. The callback gets called
		1998	whenever it gets toggled, with a boolean indicating its new value as its
		1999	first argument.
		2000
		2001	=cut
1040		2002
1041	sub add_toggle {	2003	sub add_toggle {
1042	my ($self, $text, $cb, $value) = @_;	2004	my ($self, $text, $value, $cb) = @_;
1043		2005
1044	my $item; $item = {	2006	my $item; $item = {
1045	type => "button",	2007	type => "button",
1046	text => " $text",	2008	text => " $text",
1047	value => $value,	2009	value => $value,
1048	render => sub { ($item->{value} ? "* " : " ") . $text },	2010	render => sub { ($_[0]{value} ? "* " : " ") . $text },
1049	activate => sub { $cb->($item->{value} = !$item->{value}); },	2011	activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
1050	};	2012	};
1051		2013
1052	$self->add_item ($item);	2014	$self->add_item ($item);
1053	}	2015	}
		2016
		2017	=item $popup->show
		2018
		2019	Displays the popup (which is initially hidden).
		2020
		2021	=cut
1054		2022
1055	sub show {	2023	sub show {
1056	my ($self) = @_;	2024	my ($self) = @_;
1057		2025
1058	local $urxvt::popup::self = $self;	2026	local $urxvt::popup::self = $self;
1059		2027
1060	urxvt->new ("--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0,	2028	my $env = $self->{term}->env;
		2029	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
		2030	delete $env->{LC_ALL};
		2031	$env->{LC_CTYPE} = $self->{term}->locale;
		2032
		2033	my $term = urxvt::term->new (
		2034	$env, "popup",
		2035	"--perl-lib" => "", "--perl-ext-common" => "",
		2036	"-pty-fd" => -1, "-sl" => 0,
		2037	"-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1061	"--transient-for" => $self->{term}->parent,	2038	"--transient-for" => $self->{term}->parent,
		2039	"-display" => $self->{term}->display_id,
1062	"-pe" => "urxvt-popup")	2040	"-pe" => "urxvt-popup",
1063	or die "unable to create popup window\n";	2041	) or die "unable to create popup window\n";
		2042
		2043	unless (delete $term->{urxvt_popup_init_done}) {
		2044	$term->ungrab;
		2045	$term->destroy;
		2046	die "unable to initialise popup window\n";
		2047	}
1064	}	2048	}
1065		2049
1066	sub DESTROY {	2050	sub DESTROY {
1067	my ($self) = @_;	2051	my ($self) = @_;
1068		2052
		2053	delete $self->{term}{_destroy}{$self};
1069	$self->{term}->ungrab;	2054	$self->{term}->ungrab;
1070	}	2055	}
		2056
		2057	=back
		2058
		2059	=cut
		2060
		2061	package urxvt::watcher;
1071		2062
1072	=head2 The C<urxvt::timer> Class	2063	=head2 The C<urxvt::timer> Class
1073		2064
1074	This class implements timer watchers/events. Time is represented as a	2065	This class implements timer watchers/events. Time is represented as a
1075	fractional number of seconds since the epoch. Example:	2066	fractional number of seconds since the epoch. Example:
…		…
1079	->new	2070	->new
1080	->interval (1)	2071	->interval (1)
1081	->cb (sub {	2072	->cb (sub {
1082	$term->{overlay}->set (0, 0,	2073	$term->{overlay}->set (0, 0,
1083	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);	2074	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
1084	});	2075	});
1085		2076
1086	=over 4	2077	=over 4
1087		2078
1088	=item $timer = new urxvt::timer	2079	=item $timer = new urxvt::timer
1089		2080
…		…
1092		2083
1093	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })	2084	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })
1094		2085
1095	Set the callback to be called when the timer triggers.	2086	Set the callback to be called when the timer triggers.
1096		2087
1097	=item $tstamp = $timer->at
1098
1099	Return the time this watcher will fire next.
1100
1101	=item $timer = $timer->set ($tstamp)	2088	=item $timer = $timer->set ($tstamp[, $interval])
1102		2089
1103	Set the time the event is generated to $tstamp.	2090	Set the time the event is generated to $tstamp (and optionally specifies a
		2091	new $interval).
1104		2092
1105	=item $timer = $timer->interval ($interval)	2093	=item $timer = $timer->interval ($interval)
1106		2094
1107	Normally (and when C<$interval> is C<0>), the timer will automatically	2095	By default (and when C<$interval> is C<0>), the timer will automatically
1108	stop after it has fired once. If C<$interval> is non-zero, then the timer	2096	stop after it has fired once. If C<$interval> is non-zero, then the timer
1109	is automatically rescheduled at the given intervals.	2097	is automatically rescheduled at the given intervals.
1110		2098
1111	=item $timer = $timer->start	2099	=item $timer = $timer->start
1112		2100
1113	Start the timer.	2101	Start the timer.
1114		2102
1115	=item $timer = $timer->start ($tstamp)	2103	=item $timer = $timer->start ($tstamp[, $interval])
1116		2104
1117	Set the event trigger time to C<$tstamp> and start the timer.	2105	Set the event trigger time to C<$tstamp> and start the timer. Optionally
		2106	also replaces the interval.
		2107
		2108	=item $timer = $timer->after ($delay[, $interval])
		2109
		2110	Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1118		2111
1119	=item $timer = $timer->stop	2112	=item $timer = $timer->stop
1120		2113
1121	Stop the timer.	2114	Stop the timer.
1122		2115
…		…
1128		2121
1129	$term->{socket} = ...	2122	$term->{socket} = ...
1130	$term->{iow} = urxvt::iow	2123	$term->{iow} = urxvt::iow
1131	->new	2124	->new
1132	->fd (fileno $term->{socket})	2125	->fd (fileno $term->{socket})
1133	->events (1) # wait for read data	2126	->events (urxvt::EV_READ)
1134	->start	2127	->start
1135	->cb (sub {	2128	->cb (sub {
1136	my ($iow, $revents) = @_;	2129	my ($iow, $revents) = @_;
1137	# $revents must be 1 here, no need to check	2130	# $revents must be 1 here, no need to check
1138	sysread $term->{socket}, my $buf, 8192	2131	sysread $term->{socket}, my $buf, 8192
…		…
1151	Set the callback to be called when io events are triggered. C<$reventmask>	2144	Set the callback to be called when io events are triggered. C<$reventmask>
1152	is a bitset as described in the C<events> method.	2145	is a bitset as described in the C<events> method.
1153		2146
1154	=item $iow = $iow->fd ($fd)	2147	=item $iow = $iow->fd ($fd)
1155		2148
1156	Set the filedescriptor (not handle) to watch.	2149	Set the file descriptor (not handle) to watch.
1157		2150
1158	=item $iow = $iow->events ($eventmask)	2151	=item $iow = $iow->events ($eventmask)
1159		2152
1160	Set the event mask to watch. Bit #0 (value C<1>) enables watching for read	2153	Set the event mask to watch. The only allowed values are
1161	data, Bit #1 (value C<2>) enables watching for write data.	2154	C<urxvt::EV_READ> and C<urxvt::EV_WRITE>, which might be ORed
		2155	together, or C<urxvt::EV_NONE>.
1162		2156
1163	=item $iow = $iow->start	2157	=item $iow = $iow->start
1164		2158
1165	Start watching for requested events on the given handle.	2159	Start watching for requested events on the given handle.
1166		2160
1167	=item $iow = $iow->stop	2161	=item $iow = $iow->stop
1168		2162
1169	Stop watching for events on the given filehandle.	2163	Stop watching for events on the given file handle.
		2164
		2165	=back
		2166
		2167	=head2 The C<urxvt::iw> Class
		2168
		2169	This class implements idle watchers, that get called automatically when
		2170	the process is idle. They should return as fast as possible, after doing
		2171	some useful work.
		2172
		2173	=over 4
		2174
		2175	=item $iw = new urxvt::iw
		2176
		2177	Create a new idle watcher object in stopped state.
		2178
		2179	=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
		2180
		2181	Set the callback to be called when the watcher triggers.
		2182
		2183	=item $timer = $timer->start
		2184
		2185	Start the watcher.
		2186
		2187	=item $timer = $timer->stop
		2188
		2189	Stop the watcher.
		2190
		2191	=back
		2192
		2193	=head2 The C<urxvt::pw> Class
		2194
		2195	This class implements process watchers. They create an event whenever a
		2196	process exits, after which they stop automatically.
		2197
		2198	my $pid = fork;
		2199	...
		2200	$term->{pw} = urxvt::pw
		2201	->new
		2202	->start ($pid)
		2203	->cb (sub {
		2204	my ($pw, $exit_status) = @_;
		2205	...
		2206	});
		2207
		2208	=over 4
		2209
		2210	=item $pw = new urxvt::pw
		2211
		2212	Create a new process watcher in stopped state.
		2213
		2214	=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
		2215
		2216	Set the callback to be called when the timer triggers.
		2217
		2218	=item $pw = $timer->start ($pid)
		2219
		2220	Tells the watcher to start watching for process C<$pid>.
		2221
		2222	=item $pw = $pw->stop
		2223
		2224	Stop the watcher.
1170		2225
1171	=back	2226	=back
1172		2227
1173	=head1 ENVIRONMENT	2228	=head1 ENVIRONMENT
1174		2229
…		…
1177	This variable controls the verbosity level of the perl extension. Higher	2232	This variable controls the verbosity level of the perl extension. Higher
1178	numbers indicate more verbose output.	2233	numbers indicate more verbose output.
1179		2234
1180	=over 4	2235	=over 4
1181		2236
1182	=item =0 - only fatal messages	2237	=item == 0 - fatal messages
1183		2238
1184	=item =3 - script loading and management	2239	=item >= 3 - script loading and management
1185		2240
1186	=item =10 - all events received	2241	=item >=10 - all called hooks
		2242
		2243	=item >=11 - hook return values
1187		2244
1188	=back	2245	=back
1189		2246
1190	=head1 AUTHOR	2247	=head1 AUTHOR
1191		2248
1192	Marc Lehmann <pcg@goof.com>	2249	Marc Lehmann <schmorp@schmorp.de>
1193	http://software.schmorp.de/pkg/rxvt-unicode	2250	http://software.schmorp.de/pkg/rxvt-unicode
1194		2251
1195	=cut	2252	=cut
1196		2253
1197	1	2254	1
		2255
		2256	# vim: sw=3:

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