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Revision 1.91 by root, Fri Jan 13 01:09:37 2006 UTC vs.
Revision 1.216 by root, Sun Jun 10 13:32:55 2012 UTC

…		…
17		17
18	@@RXVT_NAME@@ --perl-lib $HOME -pe grab_test	18	@@RXVT_NAME@@ --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 @@RXVT_NAME@@d, 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	You can disable the embedded perl interpreter by setting both "perl-ext"
		32	and "perl-ext-common" resources to the empty string.
		33
31	=head1 PREPACKAGED EXTENSIONS	34	=head1 PREPACKAGED EXTENSIONS
32		35
33	This section describes the extensions delivered with this release. You can	36	This section describes the extensions delivered with this release. You can
34	find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.	37	find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.
35		38
36	You can activate them like this:	39	You can activate them like this:
37		40
38	@@RXVT_NAME@@ -pe <extensionname>	41	@@RXVT_NAME@@ -pe <extensionname>
		42
		43	Or by adding them to the resource for extensions loaded by default:
		44
		45	URxvt.perl-ext-common: default,selection-autotransform
39		46
40	=over 4	47	=over 4
41		48
42	=item selection (enabled by default)	49	=item selection (enabled by default)
43		50
…		…
58	URxvt.selection.pattern-1: perl-regex	65	URxvt.selection.pattern-1: perl-regex
59	...	66	...
60		67
61	The index number (0, 1...) must not have any holes, and each regex must	68	The index number (0, 1...) must not have any holes, and each regex must
62	contain at least one pair of capturing parentheses, which will be used for	69	contain at least one pair of capturing parentheses, which will be used for
63	the match. For example, the followign adds a regex that matches everything	70	the match. For example, the following adds a regex that matches everything
64	between two vertical bars:	71	between two vertical bars:
65		72
66	URxvt.selection.pattern-0: \\|([^|]+)\\|	73	URxvt.selection.pattern-0: \\|([^|]+)\\|
		74
		75	Another example: Programs I use often output "absolute path: " at the
		76	beginning of a line when they process multiple files. The following
		77	pattern matches the filename (note, there is a single space at the very
		78	end):
		79
		80	URxvt.selection.pattern-0: ^(/[^:]+):\
67		81
68	You can look at the source of the selection extension to see more	82	You can look at the source of the selection extension to see more
69	interesting uses, such as parsing a line from beginning to end.	83	interesting uses, such as parsing a line from beginning to end.
70		84
71	This extension also offers the following bindable keyboard command:	85	This extension also offers following bindable keyboard commands:
72		86
73	=over 4	87	=over 4
74		88
75	=item rot13	89	=item rot13
76		90
…		…
83	=item option-popup (enabled by default)	97	=item option-popup (enabled by default)
84		98
85	Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at	99	Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at
86	runtime.	100	runtime.
87		101
		102	Other extensions can extend this popup menu by pushing a code reference
		103	onto C<@{ $term->{option_popup_hook} }>, which gets called whenever the
		104	popup is being displayed.
		105
		106	Its sole argument is the popup menu, which can be modified. It should
		107	either return nothing or a string, the initial boolean value and a code
		108	reference. The string will be used as button text and the code reference
		109	will be called when the toggle changes, with the new boolean value as
		110	first argument.
		111
		112	The following will add an entry C<myoption> that changes
		113	C<< $self->{myoption} >>:
		114
		115	push @{ $self->{term}{option_popup_hook} }, sub {
		116	("my option" => $myoption, sub { $self->{myoption} = $_[0] })
		117	};
		118
88	=item selection-popup (enabled by default)	119	=item selection-popup (enabled by default)
89		120
90	Binds a popup menu to Ctrl-Button3 that lets you convert the selection	121	Binds a popup menu to Ctrl-Button3 that lets you convert the selection
91	text into various other formats/action (such as uri unescaping, perl	122	text into various other formats/action (such as uri unescaping, perl
92	evalution, web-browser starting etc.), depending on content.	123	evaluation, web-browser starting etc.), depending on content.
		124
		125	Other extensions can extend this popup menu by pushing a code reference
		126	onto C<@{ $term->{selection_popup_hook} }>, which gets called whenever the
		127	popup is being displayed.
		128
		129	Its sole argument is the popup menu, which can be modified. The selection
		130	is in C<$_>, which can be used to decide whether to add something or not.
		131	It should either return nothing or a string and a code reference. The
		132	string will be used as button text and the code reference will be called
		133	when the button gets activated and should transform C<$_>.
		134
		135	The following will add an entry C<a to b> that transforms all C<a>s in
		136	the selection to C<b>s, but only if the selection currently contains any
		137	C<a>s:
		138
		139	push @{ $self->{term}{selection_popup_hook} }, sub {
		140	/a/ ? ("a to b" => sub { s/a/b/g }
		141	: ()
		142	};
93		143
94	=item searchable-scrollback<hotkey> (enabled by default)	144	=item searchable-scrollback<hotkey> (enabled by default)
95		145
96	Adds regex search functionality to the scrollback buffer, triggered	146	Adds regex search functionality to the scrollback buffer, triggered
97	by a hotkey (default: C<M-s>). While in search mode, normal terminal	147	by a hotkey (default: C<M-s>). While in search mode, normal terminal
…		…
102	search. C<BackSpace> removes a character from the regex, C<Up> and C<Down>	152	search. C<BackSpace> removes a character from the regex, C<Up> and C<Down>
103	search upwards/downwards in the scrollback buffer, C<End> jumps to the	153	search upwards/downwards in the scrollback buffer, C<End> jumps to the
104	bottom. C<Escape> leaves search mode and returns to the point where search	154	bottom. C<Escape> leaves search mode and returns to the point where search
105	was started, while C<Enter> or C<Return> stay at the current position and	155	was started, while C<Enter> or C<Return> stay at the current position and
106	additionally stores the first match in the current line into the primary	156	additionally stores the first match in the current line into the primary
107	selection.	157	selection if the C<Shift> modifier is active.
		158
		159	The regex defaults to "(?i)", resulting in a case-insensitive search. To
		160	get a case-sensitive search you can delete this prefix using C<BackSpace>
		161	or simply use an uppercase character which removes the "(?i)" prefix.
		162
		163	See L<perlre> for more info about perl regular expression syntax.
		164
		165	=item readline (enabled by default)
		166
		167	A support package that tries to make editing with readline easier. At
		168	the moment, it reacts to clicking shift-left mouse button by trying to
		169	move the text cursor to this position. It does so by generating as many
		170	cursor-left or cursor-right keypresses as required (this only works
		171	for programs that correctly support wide characters).
		172
		173	To avoid too many false positives, this is only done when:
		174
		175	=over 4
		176
		177	=item - the tty is in ICANON state.
		178
		179	=item - the text cursor is visible.
		180
		181	=item - the primary screen is currently being displayed.
		182
		183	=item - the mouse is on the same (multi-row-) line as the text cursor.
		184
		185	=back
		186
		187	The normal selection mechanism isn't disabled, so quick successive clicks
		188	might interfere with selection creation in harmless ways.
108		189
109	=item selection-autotransform	190	=item selection-autotransform
110		191
111	This selection allows you to do automatic transforms on a selection	192	This selection allows you to do automatic transforms on a selection
112	whenever a selection is made.	193	whenever a selection is made.
…		…
120		201
121	For example, the following will transform selections of the form	202	For example, the following will transform selections of the form
122	C<filename:number>, often seen in compiler messages, into C<vi +$filename	203	C<filename:number>, often seen in compiler messages, into C<vi +$filename
123	$word>:	204	$word>:
124		205
125	URxvt.selection-autotransform.0: s/^(\\S+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/	206	URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
126		207
127	And this example matches the same,but replaces it with vi-commands you can	208	And this example matches the same,but replaces it with vi-commands you can
128	paste directly into your (vi :) editor:	209	paste directly into your (vi :) editor:
129		210
130	URxvt.selection-autotransform.0: s/^(S+):(d+):?$/\\x1b:e \\Q$1\\E\\x0d:$2\\x0d/	211	URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
131		212
132	Of course, this can be modified to suit your needs and your editor :)	213	Of course, this can be modified to suit your needs and your editor :)
133		214
134	To expand the example above to typical perl error messages ("XXX at	215	To expand the example above to typical perl error messages ("XXX at
135	FILENAME line YYY."), you need a slightly more elaborate solution:	216	FILENAME line YYY."), you need a slightly more elaborate solution:
136		217
137	URxvt.selection.pattern-0: ( at .*? line \\d+\\.)	218	URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
138	URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)\\.$/\x1b:e \\Q$1\E\\x0d:$2\\x0d/	219	URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
139		220
140	The first line tells the selection code to treat the unchanging part of	221	The first line tells the selection code to treat the unchanging part of
141	every error message as a selection pattern, and the second line transforms	222	every error message as a selection pattern, and the second line transforms
142	the message into vi commands to load the file.	223	the message into vi commands to load the file.
143		224
144	=item mark-urls	225	=item tabbed
145		226
		227	This transforms the terminal into a tabbar with additional terminals, that
		228	is, it implements what is commonly referred to as "tabbed terminal". The topmost line
		229	displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
		230	button per tab.
		231
		232	Clicking a button will activate that tab. Pressing B<Shift-Left> and
		233	B<Shift-Right> will switch to the tab left or right of the current one,
		234	while B<Shift-Down> creates a new tab.
		235
		236	The tabbar itself can be configured similarly to a normal terminal, but
		237	with a resource class of C<URxvt.tabbed>. In addition, it supports the
		238	following four resources (shown with defaults):
		239
		240	URxvt.tabbed.tabbar-fg: <colour-index, default 3>
		241	URxvt.tabbed.tabbar-bg: <colour-index, default 0>
		242	URxvt.tabbed.tab-fg: <colour-index, default 0>
		243	URxvt.tabbed.tab-bg: <colour-index, default 1>
		244
		245	See I<COLOR AND GRAPHICS> in the @@RXVT_NAME@@(1) manpage for valid
		246	indices.
		247
		248	=item matcher
		249
146	Uses per-line display filtering (C<on_line_update>) to underline urls and	250	Uses per-line display filtering (C<on_line_update>) to underline text
147	make them clickable. When middle-clicked, the program specified in the	251	matching a certain pattern and make it clickable. When clicked with the
148	resource C<urlLauncher> (default C<x-www-browser>) will be started with	252	mouse button specified in the C<matcher.button> resource (default 2, or
149	the URL as first argument.	253	middle), the program specified in the C<matcher.launcher> resource
		254	(default, the C<urlLauncher> resource, C<sensible-browser>) will be started
		255	with the matched text as first argument. The default configuration is
		256	suitable for matching URLs and launching a web browser, like the
		257	former "mark-urls" extension.
		258
		259	The default pattern to match URLs can be overridden with the
		260	C<matcher.pattern.0> resource, and additional patterns can be specified
		261	with numbered patterns, in a manner similar to the "selection" extension.
		262	The launcher can also be overridden on a per-pattern basis.
		263
		264	It is possible to activate the most recently seen match or a list of matches
		265	from the keyboard. Simply bind a keysym to "perl:matcher:last" or
		266	"perl:matcher:list" as seen in the example below.
		267
		268	Example configuration:
		269
		270	URxvt.perl-ext: default,matcher
		271	URxvt.urlLauncher: sensible-browser
		272	URxvt.keysym.C-Delete: perl:matcher:last
		273	URxvt.keysym.M-Delete: perl:matcher:list
		274	URxvt.matcher.button: 1
		275	URxvt.matcher.pattern.1: \\bwww\\.[\\w-]+\\.[\\w./?&@#-]*[\\w/-]
		276	URxvt.matcher.pattern.2: \\B(/\\S+?):(\\d+)(?=:|$)
		277	URxvt.matcher.launcher.2: gvim +$2 $1
		278
		279	=item xim-onthespot
		280
		281	This (experimental) perl extension implements OnTheSpot editing. It does
		282	not work perfectly, and some input methods don't seem to work well with
		283	OnTheSpot editing in general, but it seems to work at least for SCIM and
		284	kinput2.
		285
		286	You enable it by specifying this extension and a preedit style of
		287	C<OnTheSpot>, i.e.:
		288
		289	@@RXVT_NAME@@ -pt OnTheSpot -pe xim-onthespot
		290
		291	=item kuake<hotkey>
		292
		293	A very primitive quake-console-like extension. It was inspired by a
		294	description of how the programs C<kuake> and C<yakuake> work: Whenever the
		295	user presses a global accelerator key (by default C<F10>), the terminal
		296	will show or hide itself. Another press of the accelerator key will hide
		297	or show it again.
		298
		299	Initially, the window will not be shown when using this extension.
		300
		301	This is useful if you need a single terminal that is not using any desktop
		302	space most of the time but is quickly available at the press of a key.
		303
		304	The accelerator key is grabbed regardless of any modifiers, so this
		305	extension will actually grab a physical key just for this function.
		306
		307	If you want a quake-like animation, tell your window manager to do so
		308	(fvwm can do it).
		309
		310	=item overlay-osc
		311
		312	This extension implements some OSC commands to display timed popups on the
		313	screen - useful for status displays from within scripts. You have to read
		314	the sources for more info.
150		315
151	=item block-graphics-to-ascii	316	=item block-graphics-to-ascii
152		317
153	A not very useful example of filtering all text output to the terminal,	318	A not very useful example of filtering all text output to the terminal
154	by replacing all line-drawing characters (U+2500 .. U+259F) by a	319	by replacing all line-drawing characters (U+2500 .. U+259F) by a
155	similar-looking ascii character.	320	similar-looking ascii character.
156		321
157	=item digital-clock	322	=item digital-clock
158		323
159	Displays a digital clock using the built-in overlay.	324	Displays a digital clock using the built-in overlay.
		325
		326	=item remote-clipboard
		327
		328	Somewhat of a misnomer, this extension adds two menu entries to the
		329	selection popup that allows one to run external commands to store the
		330	selection somewhere and fetch it again.
		331
		332	We use it to implement a "distributed selection mechanism", which just
		333	means that one command uploads the file to a remote server, and another
		334	reads it.
		335
		336	The commands can be set using the C<URxvt.remote-selection.store> and
		337	C<URxvt.remote-selection.fetch> resources. The first should read the
		338	selection to store from STDIN (always in UTF-8), the second should provide
		339	the selection data on STDOUT (also in UTF-8).
		340
		341	The defaults (which are likely useless to you) use rsh and cat:
		342
		343	URxvt.remote-selection.store: rsh ruth 'cat >/tmp/distributed-selection'
		344	URxvt.remote-selection.fetch: rsh ruth 'cat /tmp/distributed-selection'
		345
		346	=item selection-pastebin
		347
		348	This is a little rarely useful extension that uploads the selection as
		349	textfile to a remote site (or does other things). (The implementation is
		350	not currently secure for use in a multiuser environment as it writes to
		351	F</tmp> directly.).
		352
		353	It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
		354	i.e.
		355
		356	URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
		357
		358	Pressing this combination runs a command with C<%> replaced by the name of
		359	the textfile. This command can be set via a resource:
		360
		361	URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
		362
		363	And the default is likely not useful to anybody but the few people around
		364	here :)
		365
		366	The name of the textfile is the hex encoded md5 sum of the selection, so
		367	the same content should lead to the same filename.
		368
		369	After a successful upload the selection will be replaced by the text given
		370	in the C<selection-pastebin-url> resource (again, the % is the placeholder
		371	for the filename):
		372
		373	URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
		374
		375	I<Note to xrdb users:> xrdb uses the C preprocessor, which might interpret
		376	the double C</> characters as comment start. Use C<\057\057> instead,
		377	which works regardless of whether xrdb is used to parse the resource file
		378	or not.
		379
		380	=item macosx-clipboard and macosx-clipboard-native
		381
		382	These two modules implement an extended clipboard for Mac OS X. They are
		383	used like this:
		384
		385	URxvt.perl-ext-common: default,macosx-clipboard
		386	URxvt.keysym.M-c: perl:macosx-clipboard:copy
		387	URxvt.keysym.M-v: perl:macosx-clipboard:paste
		388
		389	The difference between them is that the native variant requires a
		390	perl from apple's devkit or so, and C<macosx-clipboard> requires the
		391	C<Mac::Pasteboard> module, works with other perls, has fewer bugs, is
		392	simpler etc. etc.
160		393
161	=item example-refresh-hooks	394	=item example-refresh-hooks
162		395
163	Displays a very simple digital clock in the upper right corner of the	396	Displays a very simple digital clock in the upper right corner of the
164	window. Illustrates overwriting the refresh callbacks to create your own	397	window. Illustrates overwriting the refresh callbacks to create your own
165	overlays or changes.	398	overlays or changes.
		399
		400	=item confirm-paste
		401
		402	Displays a confirmation dialog when a paste containing at least a full
		403	line is detected.
		404
		405	=item bell-command
		406
		407	Runs the command specified by the C<URxvt.bell-command> resource when
		408	a bell event occurs. For example, the following pops up a notification
		409	bubble with the text "Beep, Beep" using notify-send:
		410
		411	URxvt.bell-command: notify-send "Beep, Beep"
166		412
167	=back	413	=back
168		414
169	=head1 API DOCUMENTATION	415	=head1 API DOCUMENTATION
170		416
…		…
186		432
187	=over 4	433	=over 4
188		434
189	=item $text	435	=item $text
190		436
191	Rxvt-unicodes special way of encoding text, where one "unicode" character	437	Rxvt-unicode's special way of encoding text, where one "unicode" character
192	always represents one screen cell. See L<ROW_t> for a discussion of this format.	438	always represents one screen cell. See L<ROW_t> for a discussion of this format.
193		439
194	=item $string	440	=item $string
195		441
196	A perl text string, with an emphasis on I<text>. It can store all unicode	442	A perl text string, with an emphasis on I<text>. It can store all unicode
…		…
200	=item $octets	446	=item $octets
201		447
202	Either binary data or - more common - a text string encoded in a	448	Either binary data or - more common - a text string encoded in a
203	locale-specific way.	449	locale-specific way.
204		450
		451	=item $keysym
		452
		453	an integer that is a valid X11 keysym code. You can convert a string
		454	into a keysym and viceversa by using C<XStringToKeysym> and
		455	C<XKeysymToString>.
		456
205	=back	457	=back
206		458
207	=head2 Extension Objects	459	=head2 Extension Objects
208		460
209	Very perl extension is a perl class. A separate perl object is created	461	Every perl extension is a perl class. A separate perl object is created
210	for each terminal and each extension and passed as the first parameter to	462	for each terminal, and each terminal has its own set of extension objects,
211	hooks. So extensions can use their C<$self> object without having to think	463	which are passed as the first parameter to hooks. So extensions can use
212	about other extensions, with the exception of methods and members that	464	their C<$self> object without having to think about clashes with other
		465	extensions or other terminals, with the exception of methods and members
213	begin with an underscore character C<_>: these are reserved for internal	466	that begin with an underscore character C<_>: these are reserved for
214	use.	467	internal use.
215		468
216	Although it isn't a C<urxvt::term> object, you can call all methods of the	469	Although it isn't a C<urxvt::term> object, you can call all methods of the
217	C<urxvt::term> class on this object.	470	C<urxvt::term> class on this object.
218		471
219	It has the following methods and data members:	472	It has the following methods and data members:
…		…
240	=head2 Hooks	493	=head2 Hooks
241		494
242	The following subroutines can be declared in extension files, and will be	495	The following subroutines can be declared in extension files, and will be
243	called whenever the relevant event happens.	496	called whenever the relevant event happens.
244		497
245	The first argument passed to them is an extension oject as described in	498	The first argument passed to them is an extension object as described in
246	the in the C<Extension Objects> section.	499	the in the C<Extension Objects> section.
247		500
248	B<All> of these hooks must return a boolean value. If it is true, then the	501	B<All> of these hooks must return a boolean value. If any of the called
249	event counts as being I<consumed>, and the invocation of other hooks is	502	hooks returns true, then the event counts as being I<consumed>, and the
250	skipped, and the relevant action might not be carried out by the C++ code.	503	relevant action might not be carried out by the C++ code.
251		504
252	I<< When in doubt, return a false value (preferably C<()>). >>	505	I<< When in doubt, return a false value (preferably C<()>). >>
253		506
254	=over 4	507	=over 4
255		508
256	=item on_init $term	509	=item on_init $term
257		510
258	Called after a new terminal object has been initialized, but before	511	Called after a new terminal object has been initialized, but before
259	windows are created or the command gets run. Most methods are unsafe to	512	windows are created or the command gets run. Most methods are unsafe to
260	call or deliver senseless data, as terminal size and other characteristics	513	call or deliver senseless data, as terminal size and other characteristics
261	have not yet been determined. You can safely query and change resources,	514	have not yet been determined. You can safely query and change resources
262	though.	515	and options, though. For many purposes the C<on_start> hook is a better
		516	place.
		517
		518	=item on_start $term
		519
		520	Called at the very end of initialisation of a new terminal, just before
		521	trying to map (display) the toplevel and returning to the main loop.
		522
		523	=item on_destroy $term
		524
		525	Called whenever something tries to destroy terminal, when the terminal is
		526	still fully functional (not for long, though).
263		527
264	=item on_reset $term	528	=item on_reset $term
265		529
266	Called after the screen is "reset" for any reason, such as resizing or	530	Called after the screen is "reset" for any reason, such as resizing or
267	control sequences. Here is where you can react on changes to size-related	531	control sequences. Here is where you can react on changes to size-related
268	variables.	532	variables.
269		533
270	=item on_start $term	534	=item on_child_start $term, $pid
271		535
272	Called at the very end of initialisation of a new terminal, just before	536	Called just after the child process has been C<fork>ed.
273	returning to the mainloop.	537
		538	=item on_child_exit $term, $status
		539
		540	Called just after the child process has exited. C<$status> is the status
		541	from C<waitpid>.
274		542
275	=item on_sel_make $term, $eventtime	543	=item on_sel_make $term, $eventtime
276		544
277	Called whenever a selection has been made by the user, but before the	545	Called whenever a selection has been made by the user, but before the
278	selection text is copied, so changes to the beginning, end or type of the	546	selection text is copied, so changes to the beginning, end or type of the
…		…
285		553
286	Called whenever a selection has been copied, but before the selection is	554	Called whenever a selection has been copied, but before the selection is
287	requested from the server. The selection text can be queried and changed	555	requested from the server. The selection text can be queried and changed
288	by calling C<< $term->selection >>.	556	by calling C<< $term->selection >>.
289		557
290	Returning a true value aborts selection grabbing. It will still be hilighted.	558	Returning a true value aborts selection grabbing. It will still be highlighted.
291		559
292	=item on_sel_extend $term	560	=item on_sel_extend $term
293		561
294	Called whenever the user tries to extend the selection (e.g. with a double	562	Called whenever the user tries to extend the selection (e.g. with a double
295	click) and is either supposed to return false (normal operation), or	563	click) and is either supposed to return false (normal operation), or
296	should extend the selection itelf and return true to suppress the built-in	564	should extend the selection itself and return true to suppress the built-in
297	processing. This can happen multiple times, as long as the callback	565	processing. This can happen multiple times, as long as the callback
298	returns true, it will be called on every further click by the user and is	566	returns true, it will be called on every further click by the user and is
299	supposed to enlarge the selection more and more, if possible.	567	supposed to enlarge the selection more and more, if possible.
300		568
301	See the F<selection> example extension.	569	See the F<selection> example extension.
302		570
303	=item on_view_change $term, $offset	571	=item on_view_change $term, $offset
304		572
305	Called whenever the view offset changes, i..e the user or program	573	Called whenever the view offset changes, i.e. the user or program
306	scrolls. Offset C<0> means display the normal terminal, positive values	574	scrolls. Offset C<0> means display the normal terminal, positive values
307	show this many lines of scrollback.	575	show this many lines of scrollback.
308		576
309	=item on_scroll_back $term, $lines, $saved	577	=item on_scroll_back $term, $lines, $saved
310		578
…		…
314		582
315	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,	583	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
316	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total	584	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
317	number of lines that will be in the scrollback buffer.	585	number of lines that will be in the scrollback buffer.
318		586
319	=item on_osc_seq $term, $string	587	=item on_osc_seq $term, $op, $args, $resp
		588
		589	Called on every OSC sequence and can be used to suppress it or modify its
		590	behaviour. The default should be to return an empty list. A true value
		591	suppresses execution of the request completely. Make sure you don't get
		592	confused by recursive invocations when you output an OSC sequence within
		593	this callback.
		594
		595	C<on_osc_seq_perl> should be used for new behaviour.
		596
		597	=item on_osc_seq_perl $term, $args, $resp
320		598
321	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =	599	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
322	operating system command) is processed. Cursor position and other state	600	operating system command) is processed. Cursor position and other state
323	information is up-to-date when this happens. For interoperability, the	601	information is up-to-date when this happens. For interoperability, the
324	string should start with the extension name and a colon, to distinguish	602	string should start with the extension name (sans -osc) and a semicolon,
325	it from commands for other extensions, and this might be enforced in the	603	to distinguish it from commands for other extensions, and this might be
326	future.	604	enforced in the future.
		605
		606	For example, C<overlay-osc> uses this:
		607
		608	sub on_osc_seq_perl {
		609	my ($self, $osc, $resp) = @_;
		610
		611	return unless $osc =~ s/^overlay;//;
		612
		613	... process remaining $osc string
		614	}
327		615
328	Be careful not ever to trust (in a security sense) the data you receive,	616	Be careful not ever to trust (in a security sense) the data you receive,
329	as its source can not easily be controleld (e-mail content, messages from	617	as its source can not easily be controlled (e-mail content, messages from
330	other users on the same system etc.).	618	other users on the same system etc.).
		619
		620	For responses, C<$resp> contains the end-of-args separator used by the
		621	sender.
331		622
332	=item on_add_lines $term, $string	623	=item on_add_lines $term, $string
333		624
334	Called whenever text is about to be output, with the text as argument. You	625	Called whenever text is about to be output, with the text as argument. You
335	can filter/change and output the text yourself by returning a true value	626	can filter/change and output the text yourself by returning a true value
…		…
340	=item on_tt_write $term, $octets	631	=item on_tt_write $term, $octets
341		632
342	Called whenever some data is written to the tty/pty and can be used to	633	Called whenever some data is written to the tty/pty and can be used to
343	suppress or filter tty input.	634	suppress or filter tty input.
344		635
		636	=item on_tt_paste $term, $octets
		637
		638	Called whenever text is about to be pasted, with the text as argument. You
		639	can filter/change and paste the text yourself by returning a true value
		640	and calling C<< $term->tt_paste >> yourself. C<$octets> is
		641	locale-encoded.
		642
345	=item on_line_update $term, $row	643	=item on_line_update $term, $row
346		644
347	Called whenever a line was updated or changed. Can be used to filter	645	Called whenever a line was updated or changed. Can be used to filter
348	screen output (e.g. underline urls or other useless stuff). Only lines	646	screen output (e.g. underline urls or other useless stuff). Only lines
349	that are being shown will be filtered, and, due to performance reasons,	647	that are being shown will be filtered, and, due to performance reasons,
…		…
356	later with the already-modified line (e.g. if unrelated parts change), so	654	later with the already-modified line (e.g. if unrelated parts change), so
357	you cannot just toggle rendition bits, but only set them.	655	you cannot just toggle rendition bits, but only set them.
358		656
359	=item on_refresh_begin $term	657	=item on_refresh_begin $term
360		658
361	Called just before the screen gets redrawn. Can be used for overlay	659	Called just before the screen gets redrawn. Can be used for overlay or
362	or similar effects by modify terminal contents in refresh_begin, and	660	similar effects by modifying the terminal contents in refresh_begin, and
363	restoring them in refresh_end. The built-in overlay and selection display	661	restoring them in refresh_end. The built-in overlay and selection display
364	code is run after this hook, and takes precedence.	662	code is run after this hook, and takes precedence.
365		663
366	=item on_refresh_end $term	664	=item on_refresh_end $term
367		665
368	Called just after the screen gets redrawn. See C<on_refresh_begin>.	666	Called just after the screen gets redrawn. See C<on_refresh_begin>.
369		667
370	=item on_keyboard_command $term, $string	668	=item on_user_command $term, $string
371		669
372	Called whenever the user presses a key combination that has a	670	Called whenever a user-configured event is being activated (e.g. via
373	C<perl:string> action bound to it (see description of the B<keysym>	671	a C<perl:string> action bound to a key, see description of the B<keysym>
374	resource in the @@RXVT_NAME@@(1) manpage).	672	resource in the @@RXVT_NAME@@(1) manpage).
		673
		674	The event is simply the action string. This interface is assumed to change
		675	slightly in the future.
		676
		677	=item on_register_command $term, $keysym, $modifiermask, $string
		678
		679	Called after parsing a keysym resource but before registering the
		680	associated binding. If this hook returns TRUE the binding is not
		681	registered. It can be used to modify a binding by calling
		682	C<register_command>.
		683
		684	=item on_resize_all_windows $term, $new_width, $new_height
		685
		686	Called just after the new window size has been calculated, but before
		687	windows are actually being resized or hints are being set. If this hook
		688	returns TRUE, setting of the window hints is being skipped.
		689
		690	=item on_x_event $term, $event
		691
		692	Called on every X event received on the vt window (and possibly other
		693	windows). Should only be used as a last resort. Most event structure
		694	members are not passed.
		695
		696	=item on_root_event $term, $event
		697
		698	Like C<on_x_event>, but is called for events on the root window.
375		699
376	=item on_focus_in $term	700	=item on_focus_in $term
377		701
378	Called whenever the window gets the keyboard focus, before rxvt-unicode	702	Called whenever the window gets the keyboard focus, before rxvt-unicode
379	does focus in processing.	703	does focus in processing.
380		704
381	=item on_focus_out $term	705	=item on_focus_out $term
382		706
383	Called wheneever the window loses keyboard focus, before rxvt-unicode does	707	Called whenever the window loses keyboard focus, before rxvt-unicode does
384	focus out processing.	708	focus out processing.
385		709
		710	=item on_configure_notify $term, $event
		711
		712	=item on_property_notify $term, $event
		713
386	=item on_key_press $term, $event, $keysym, $octets	714	=item on_key_press $term, $event, $keysym, $octets
387		715
388	=item on_key_release $term, $event, $keysym	716	=item on_key_release $term, $event, $keysym
389		717
390	=item on_button_press $term, $event	718	=item on_button_press $term, $event
…		…
395		723
396	=item on_map_notify $term, $event	724	=item on_map_notify $term, $event
397		725
398	=item on_unmap_notify $term, $event	726	=item on_unmap_notify $term, $event
399		727
400	Called whenever the corresponding X event is received for the terminal If	728	Called whenever the corresponding X event is received for the terminal. If
401	the hook returns true, then the even will be ignored by rxvt-unicode.	729	the hook returns true, then the event will be ignored by rxvt-unicode.
402		730
403	The event is a hash with most values as named by Xlib (see the XEvent	731	The event is a hash with most values as named by Xlib (see the XEvent
404	manpage), with the additional members C<row> and C<col>, which are the row	732	manpage), with the additional members C<row> and C<col>, which are the
405	and column under the mouse cursor.	733	(real, not screen-based) row and column under the mouse cursor.
406		734
407	C<on_key_press> additionally receives the string rxvt-unicode would	735	C<on_key_press> additionally receives the string rxvt-unicode would
408	output, if any, in locale-specific encoding.	736	output, if any, in locale-specific encoding.
409		737
410	subwindow.	738	subwindow.
411		739
		740	=item on_client_message $term, $event
		741
		742	=item on_wm_protocols $term, $event
		743
		744	=item on_wm_delete_window $term, $event
		745
		746	Called when various types of ClientMessage events are received (all with
		747	format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
		748
		749	=item on_bell $term
		750
		751	Called on receipt of a bell character.
		752
412	=back	753	=back
413		754
414	=cut	755	=cut
415		756
416	package urxvt;	757	package urxvt;
417		758
418	use utf8;	759	use utf8;
419	use strict;	760	use strict 'vars';
420	use Carp ();	761	use Carp ();
421	use Scalar::Util ();	762	use Scalar::Util ();
422	use List::Util ();	763	use List::Util ();
423		764
424	our $VERSION = 1;	765	our $VERSION = 1;
425	our $TERM;	766	our $TERM;
		767	our @TERM_INIT; # should go, prevents async I/O etc.
		768	our @TERM_EXT; # should go, prevents async I/O etc.
426	our @HOOKNAME;	769	our @HOOKNAME;
427	our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;	770	our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
428	our %OPTION;	771	our %OPTION;
429		772
430	our $LIBDIR;	773	our $LIBDIR;
431	our $RESNAME;	774	our $RESNAME;
432	our $RESCLASS;	775	our $RESCLASS;
433	our $RXVTNAME;	776	our $RXVTNAME;
434		777
		778	our $NOCHAR = chr 0xffff;
		779
435	=head2 Variables in the C<urxvt> Package	780	=head2 Variables in the C<urxvt> Package
436		781
437	=over 4	782	=over 4
438		783
439	=item $urxvt::LIBDIR	784	=item $urxvt::LIBDIR
…		…
452	=item $urxvt::TERM	797	=item $urxvt::TERM
453		798
454	The current terminal. This variable stores the current C<urxvt::term>	799	The current terminal. This variable stores the current C<urxvt::term>
455	object, whenever a callback/hook is executing.	800	object, whenever a callback/hook is executing.
456		801
		802	=item @urxvt::TERM_INIT
		803
		804	All code references in this array will be called as methods of the next newly
		805	created C<urxvt::term> object (during the C<on_init> phase). The array
		806	gets cleared before the code references that were in it are being executed,
		807	so references can push themselves onto it again if they so desire.
		808
		809	This complements to the perl-eval command line option, but gets executed
		810	first.
		811
		812	=item @urxvt::TERM_EXT
		813
		814	Works similar to C<@TERM_INIT>, but contains perl package/class names, which
		815	get registered as normal extensions after calling the hooks in C<@TERM_INIT>
		816	but before other extensions. Gets cleared just like C<@TERM_INIT>.
		817
457	=back	818	=back
458		819
459	=head2 Functions in the C<urxvt> Package	820	=head2 Functions in the C<urxvt> Package
460		821
461	=over 4	822	=over 4
462		823
463	=item urxvt::fatal $errormessage	824	=item urxvt::fatal $errormessage
464		825
465	Fatally aborts execution with the given error message. Avoid at all	826	Fatally aborts execution with the given error message (which should
466	costs! The only time this is acceptable is when the terminal process	827	include a trailing newline). Avoid at all costs! The only time this
467	starts up.	828	is acceptable (and useful) is in the init hook, where it prevents the
		829	terminal from starting up.
468		830
469	=item urxvt::warn $string	831	=item urxvt::warn $string
470		832
471	Calls C<rxvt_warn> with the given string which should not include a	833	Calls C<rxvt_warn> with the given string which should include a trailing
472	newline. The module also overwrites the C<warn> builtin with a function	834	newline. The module also overwrites the C<warn> builtin with a function
473	that calls this function.	835	that calls this function.
474		836
475	Using this function has the advantage that its output ends up in the	837	Using this function has the advantage that its output ends up in the
476	correct place, e.g. on stderr of the connecting urxvtc client.	838	correct place, e.g. on stderr of the connecting urxvtc client.
477		839
478	Messages have a size limit of 1023 bytes currently.	840	Messages have a size limit of 1023 bytes currently.
479		841
480	=item $is_safe = urxvt::safe	842	=item @terms = urxvt::termlist
481		843
482	Returns true when it is safe to do potentially unsafe things, such as	844	Returns all urxvt::term objects that exist in this process, regardless of
483	evaluating perl code specified by the user. This is true when urxvt was	845	whether they are started, being destroyed etc., so be careful. Only term
484	started setuid or setgid.	846	objects that have perl extensions attached will be returned (because there
		847	is no urxvt::term object associated with others).
485		848
486	=item $time = urxvt::NOW	849	=item $time = urxvt::NOW
487		850
488	Returns the "current time" (as per the event loop).	851	Returns the "current time" (as per the event loop).
489		852
490	=item urxvt::CurrentTime	853	=item urxvt::CurrentTime
491		854
492	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,	855	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
493	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,	856	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
494	Button4Mask, Button5Mask, AnyModifier	857	Button4Mask, Button5Mask, AnyModifier
		858
		859	=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
		860	ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
		861	PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
		862	Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
		863	KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
		864	ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
		865	FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
		866
		867	=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
		868	EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
		869	GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
		870	UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
		871	ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
		872	CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
		873	SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
495		874
496	Various constants for use in X calls and event processing.	875	Various constants for use in X calls and event processing.
497		876
498	=back	877	=back
499		878
…		…
516		895
517	=item $rend = urxvt::OVERLAY_RSTYLE	896	=item $rend = urxvt::OVERLAY_RSTYLE
518		897
519	Return the rendition mask used for overlays by default.	898	Return the rendition mask used for overlays by default.
520		899
521	=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline	900	=item $rendbit = urxvt::RS_Bold, urxvt::RS_Italic, urxvt::RS_Blink,
		901	urxvt::RS_RVid, urxvt::RS_Uline
522		902
523	Return the bit that enabled bold, italic, blink, reverse-video and	903	Return the bit that enabled bold, italic, blink, reverse-video and
524	underline, respectively. To enable such a style, just logically OR it into	904	underline, respectively. To enable such a style, just logically OR it into
525	the bitset.	905	the bitset.
526		906
…		…
532		912
533	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour	913	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
534		914
535	=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour	915	=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
536		916
		917	=item $rend = urxvt::SET_COLOR $rend, $new_fg, $new_bg
		918
537	Replace the foreground/background colour in the rendition mask with the	919	Replace the foreground/background colour in the rendition mask with the
538	specified one.	920	specified one.
539		921
540	=item $value = urxvt::GET_CUSTOM $rend	922	=item $value = urxvt::GET_CUSTOM $rend
541		923
…		…
550	=back	932	=back
551		933
552	=cut	934	=cut
553		935
554	BEGIN {	936	BEGIN {
555	urxvt->bootstrap;
556
557	# overwrite perl's warn	937	# overwrite perl's warn
558	*CORE::GLOBAL::warn = sub {	938	*CORE::GLOBAL::warn = sub {
559	my $msg = join "", @_;	939	my $msg = join "", @_;
560	$msg .= "\n"	940	$msg .= "\n"
561	unless $msg =~ /\n$/;	941	unless $msg =~ /\n$/;
562	urxvt::warn ($msg);	942	urxvt::warn ($msg);
563	};	943	};
564
565	# %ENV is the original startup environment
566	delete $ENV{IFS};
567	delete $ENV{CDPATH};
568	delete $ENV{BASH_ENV};
569	$ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
570	}	944	}
571		945
572	my @hook_count;	946	no warnings 'utf8';
		947
		948	sub parse_resource {
		949	my ($term, $name, $isarg, $longopt, $flag, $value) = @_;
		950
		951	$name =~ y/-/./ if $isarg;
		952
		953	$term->scan_meta;
		954
		955	my $r = $term->{meta}{resource};
		956	keys %$r; # reste iterator
		957	while (my ($pattern, $v) = each %$r) {
		958	if (
		959	$pattern =~ /\.$/
		960	? $pattern eq substr $name, 0, length $pattern
		961	: $pattern eq $name
		962	) {
		963	$name = "$urxvt::RESCLASS.$name";
		964
		965	push @{ $term->{perl_ext_3} }, $v->[0];
		966
		967	if ($v->[1] eq "boolean") {
		968	$term->put_option_db ($name, $flag ? "true" : "false");
		969	return 1;
		970	} else {
		971	$term->put_option_db ($name, $value);
		972	return 1 + 2;
		973	}
		974	}
		975	}
		976
		977	0
		978	}
		979
		980	sub usage {
		981	my ($term, $usage_type) = @_;
		982
		983	$term->scan_meta;
		984
		985	my $r = $term->{meta}{resource};
		986
		987	for my $pattern (sort keys %$r) {
		988	my ($ext, $type, $desc) = @{ $r->{$pattern} };
		989
		990	$desc .= " (-pe $ext)";
		991
		992	if ($usage_type == 1) {
		993	$pattern =~ y/./-/;
		994	$pattern =~ s/-$/-.../g;
		995
		996	if ($type eq "boolean") {
		997	urxvt::log sprintf " -%-30s %s\n", "/+$pattern", $desc;
		998	} else {
		999	urxvt::log sprintf " -%-30s %s\n", "$pattern $type", $desc;
		1000	}
		1001	} else {
		1002	$pattern =~ s/\.$/.*/g;
		1003	urxvt::log sprintf " %-31s %s\n", "$pattern:", $type;
		1004	}
		1005	}
		1006	}
		1007
573	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};	1008	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
574		1009
575	sub verbose {	1010	sub verbose {
576	my ($level, $msg) = @_;	1011	my ($level, $msg) = @_;
577	warn "$msg\n" if $level <= $verbosity;	1012	warn "$msg\n" if $level <= $verbosity;
578	}	1013	}
579		1014
580	my $extension_pkg = "extension0000";
581	my %extension_pkg;	1015	my %extension_pkg;
582		1016
583	# load a single script into its own package, once only	1017	# load a single script into its own package, once only
584	sub extension_package($) {	1018	sub extension_package($) {
585	my ($path) = @_;	1019	my ($path) = @_;
586		1020
587	$extension_pkg{$path} ||= do {	1021	$extension_pkg{$path} ||= do {
588	my $pkg = "urxvt::" . ($extension_pkg++);	1022	$path =~ /([^\/\\]+)$/;
		1023	my $pkg = $1;
		1024	$pkg =~ s/[^[:word:]]/_/g;
		1025	$pkg = "urxvt::ext::$pkg";
589		1026
590	verbose 3, "loading extension '$path' into package '$pkg'";	1027	verbose 3, "loading extension '$path' into package '$pkg'";
591		1028
592	open my $fh, "<:raw", $path	1029	open my $fh, "<:raw", $path
593	or die "$path: $!";	1030	or die "$path: $!";
594		1031
595	my $source = untaint	1032	my $source =
596	"package $pkg; use strict; use utf8;\n"	1033	"package $pkg; use strict 'vars'; use utf8; no warnings 'utf8';\n"
597	. "use base urxvt::term::extension::;\n"
598	. "#line 1 \"$path\"\n{\n"	1034	. "#line 1 \"$path\"\n{\n"
599	. (do { local $/; <$fh> })	1035	. (do { local $/; <$fh> })
600	. "\n};\n1";	1036	. "\n};\n1";
601		1037
602	eval $source	1038	eval $source
…		…
612	sub invoke {	1048	sub invoke {
613	local $TERM = shift;	1049	local $TERM = shift;
614	my $htype = shift;	1050	my $htype = shift;
615		1051
616	if ($htype == 0) { # INIT	1052	if ($htype == 0) { # INIT
617	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");	1053	my @dirs = $TERM->perl_libdirs;
618		1054
619	my %ext_arg;	1055	my %ext_arg;
620		1056
		1057	{
		1058	my @init = @TERM_INIT;
		1059	@TERM_INIT = ();
		1060	$_->($TERM) for @init;
		1061	my @pkg = @TERM_EXT;
		1062	@TERM_EXT = ();
		1063	$TERM->register_package ($_) for @pkg;
		1064	}
		1065
		1066	for (
		1067	@{ delete $TERM->{perl_ext_3} },
621	for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {	1068	grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2
		1069	) {
622	if ($_ eq "default") {	1070	if ($_ eq "default") {
623	$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback);	1071	$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
624	} elsif (/^-(.*)$/) {	1072	} elsif (/^-(.*)$/) {
625	delete $ext_arg{$1};	1073	delete $ext_arg{$1};
626	} elsif (/^([^<]+)<(.*)>$/) {	1074	} elsif (/^([^<]+)<(.*)>$/) {
627	push @{ $ext_arg{$1} }, $2;	1075	push @{ $ext_arg{$1} }, $2;
628	} else {	1076	} else {
629	$ext_arg{$_} ||= [];	1077	$ext_arg{$_} ||= [];
630	}	1078	}
631	}	1079	}
632		1080
633	while (my ($ext, $argv) = each %ext_arg) {	1081	for my $ext (sort keys %ext_arg) {
634	my @files = grep -f $_, map "$_/$ext", @dirs;	1082	my @files = grep -f $_, map "$_/$ext", @dirs;
635		1083
636	if (@files) {	1084	if (@files) {
637	$TERM->register_package (extension_package $files[0], $argv);	1085	$TERM->register_package (extension_package $files[0], $ext_arg{$ext});
638	} else {	1086	} else {
639	warn "perl extension '$ext' not found in perl library search path\n";	1087	warn "perl extension '$ext' not found in perl library search path\n";
640	}	1088	}
641	}	1089	}
642		1090
…		…
648		1096
649	if (my $cb = $TERM->{_hook}[$htype]) {	1097	if (my $cb = $TERM->{_hook}[$htype]) {
650	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"	1098	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
651	if $verbosity >= 10;	1099	if $verbosity >= 10;
652		1100
653	keys %$cb;	1101	for my $pkg (keys %$cb) {
654
655	while (my ($pkg, $cb) = each %$cb) {
656	$retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) }	1102	my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg}, @_) };
657	and last;	1103	$retval ||= $retval_;
658		1104
659	if ($@) {	1105	if ($@) {
660	$TERM->ungrab; # better to lose the grab than the session	1106	$TERM->ungrab; # better to lose the grab than the session
661	warn $@;	1107	warn $@;
662	}	1108	}
…		…
665	verbose 11, "$HOOKNAME[$htype] returning <$retval>"	1111	verbose 11, "$HOOKNAME[$htype] returning <$retval>"
666	if $verbosity >= 11;	1112	if $verbosity >= 11;
667	}	1113	}
668		1114
669	if ($htype == 1) { # DESTROY	1115	if ($htype == 1) { # DESTROY
670	if (my $hook = delete $TERM->{_hook}) {
671	for my $htype (0..$#$hook) {
672	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
673	or set_should_invoke $htype, 0;
674	}
675	}
676
677	# clear package objects	1116	# clear package objects
678	%$_ = () for values %{ $TERM->{_pkg} };	1117	%$_ = () for values %{ $TERM->{_pkg} };
679		1118
680	# clear package	1119	# clear package
681	%$TERM = ();	1120	%$TERM = ();
682	}	1121	}
683		1122
684	$retval	1123	$retval
685	}	1124	}
686		1125
687	sub exec_async(@) {	1126	sub SET_COLOR($$$) {
688	my $pid = fork;	1127	SET_BGCOLOR (SET_FGCOLOR ($_[0], $_[1]), $_[2])
		1128	}
689		1129
690	return	1130	sub rend2mask {
691	if !defined $pid or $pid;	1131	no strict 'refs';
692		1132	my ($str, $mask) = (@_, 0);
693	%ENV = %{ $TERM->env };	1133	my %color = ( fg => undef, bg => undef );
694		1134	my @failed;
695	exec @_;	1135	for my $spec ( split /\s+/, $str ) {
696	_exit 255;	1136	if ( $spec =~ /^([fb]g)[_:-]?(\d+)/i ) {
		1137	$color{lc($1)} = $2;
		1138	} else {
		1139	my $neg = $spec =~ s/^[-^]//;
		1140	unless ( exists &{"RS_$spec"} ) {
		1141	push @failed, $spec;
		1142	next;
		1143	}
		1144	my $cur = &{"RS_$spec"};
		1145	if ( $neg ) {
		1146	$mask &= ~$cur;
		1147	} else {
		1148	$mask |= $cur;
		1149	}
		1150	}
		1151	}
		1152	($mask, @color{qw(fg bg)}, \@failed)
697	}	1153	}
698		1154
699	# urxvt::term::extension	1155	# urxvt::term::extension
700		1156
701	package urxvt::term::extension;	1157	package urxvt::term::extension;
…		…
707	while (my ($name, $cb) = each %hook) {	1163	while (my ($name, $cb) = each %hook) {
708	my $htype = $HOOKTYPE{uc $name};	1164	my $htype = $HOOKTYPE{uc $name};
709	defined $htype	1165	defined $htype
710	or Carp::croak "unsupported hook type '$name'";	1166	or Carp::croak "unsupported hook type '$name'";
711		1167
		1168	$self->set_should_invoke ($htype, +1)
712	unless (exists $self->{term}{_hook}[$htype]{$pkg}) {	1169	unless exists $self->{term}{_hook}[$htype]{$pkg};
713	$hook_count[$htype]++
714	or urxvt::set_should_invoke $htype, 1;
715	}
716		1170
717	$self->{term}{_hook}[$htype]{$pkg} = $cb;	1171	$self->{term}{_hook}[$htype]{$pkg} = $cb;
718	}	1172	}
719	}	1173	}
720		1174
…		…
725	for my $name (@hook) {	1179	for my $name (@hook) {
726	my $htype = $HOOKTYPE{uc $name};	1180	my $htype = $HOOKTYPE{uc $name};
727	defined $htype	1181	defined $htype
728	or Carp::croak "unsupported hook type '$name'";	1182	or Carp::croak "unsupported hook type '$name'";
729		1183
		1184	$self->set_should_invoke ($htype, -1)
730	if (delete $self->{term}{_hook}[$htype]{$pkg}) {	1185	if delete $self->{term}{_hook}[$htype]{$pkg};
731	--$hook_count[$htype]
732	or urxvt::set_should_invoke $htype, 0;
733	}
734	}	1186	}
735	}	1187	}
736		1188
737	our $AUTOLOAD;	1189	our $AUTOLOAD;
738		1190
…		…
770	=head2 The C<urxvt::anyevent> Class	1222	=head2 The C<urxvt::anyevent> Class
771		1223
772	The sole purpose of this class is to deliver an interface to the	1224	The sole purpose of this class is to deliver an interface to the
773	C<AnyEvent> module - any module using it will work inside urxvt without	1225	C<AnyEvent> module - any module using it will work inside urxvt without
774	further programming. The only exception is that you cannot wait on	1226	further programming. The only exception is that you cannot wait on
775	condition variables, but non-blocking condvar use is ok. What this means	1227	condition variables, but non-blocking condvar use is ok.
776	is that you cannot use blocking APIs, but the non-blocking variant should	1228
777	work.	1229	In practical terms this means is that you cannot use blocking APIs, but
		1230	the non-blocking variant should work.
778		1231
779	=cut	1232	=cut
780		1233
781	our $VERSION = 1;	1234	our $VERSION = '5.23';
782		1235
783	$INC{"urxvt/anyevent.pm"} = 1; # mark us as there	1236	$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
784	push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];	1237	push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
785		1238
786	sub timer {	1239	sub timer {
…		…
788		1241
789	my $cb = $arg{cb};	1242	my $cb = $arg{cb};
790		1243
791	urxvt::timer	1244	urxvt::timer
792	->new	1245	->new
793	->start (urxvt::NOW + $arg{after})	1246	->after ($arg{after}, $arg{interval})
794	->cb (sub {	1247	->cb ($arg{interval} ? $cb : sub {
795	$_[0]->stop; # need to cancel manually	1248	$_[0]->stop; # need to cancel manually
796	$cb->();	1249	$cb->();
797	})	1250	})
798	}	1251	}
799		1252
800	sub io {	1253	sub io {
801	my ($class, %arg) = @_;	1254	my ($class, %arg) = @_;
802		1255
803	my $cb = $arg{cb};	1256	my $cb = $arg{cb};
		1257	my $fd = fileno $arg{fh};
		1258	defined $fd or $fd = $arg{fh};
804		1259
805	bless [$arg{fh}, urxvt::iow	1260	bless [$arg{fh}, urxvt::iow
806	->new	1261	->new
807	->fd (fileno $arg{fh})	1262	->fd ($fd)
808	->events (($arg{poll} =~ /r/ ? 1 : 0)	1263	->events (($arg{poll} =~ /r/ ? 1 : 0)
809	| ($arg{poll} =~ /w/ ? 2 : 0))	1264	| ($arg{poll} =~ /w/ ? 2 : 0))
810	->start	1265	->start
811	->cb (sub {	1266	->cb ($cb)
812	$cb->(($_[1] & 1 ? 'r' : '')
813	. ($_[1] & 2 ? 'w' : ''));
814	})],
815	urxvt::anyevent::	1267	], urxvt::anyevent::
		1268	}
		1269
		1270	sub idle {
		1271	my ($class, %arg) = @_;
		1272
		1273	my $cb = $arg{cb};
		1274
		1275	urxvt::iw
		1276	->new
		1277	->start
		1278	->cb ($cb)
		1279	}
		1280
		1281	sub child {
		1282	my ($class, %arg) = @_;
		1283
		1284	my $cb = $arg{cb};
		1285
		1286	urxvt::pw
		1287	->new
		1288	->start ($arg{pid})
		1289	->cb (sub {
		1290	$_[0]->stop; # need to cancel manually
		1291	$cb->($_[0]->rpid, $_[0]->rstatus);
		1292	})
816	}	1293	}
817		1294
818	sub DESTROY {	1295	sub DESTROY {
819	$_[0][1]->stop;	1296	$_[0][1]->stop;
820	}	1297	}
821		1298
822	sub condvar {	1299	# only needed for AnyEvent < 6 compatibility
823	bless \my $flag, urxvt::anyevent::condvar::	1300	sub one_event {
824	}
825
826	sub urxvt::anyevent::condvar::broadcast {
827	${$_[0]}++;
828	}
829
830	sub urxvt::anyevent::condvar::wait {
831	unless (${$_[0]}) {
832	Carp::croak "AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API";	1301	Carp::croak "AnyEvent->one_event blocking wait unsupported in urxvt, use a non-blocking API";
833	}
834	}	1302	}
835		1303
836	package urxvt::term;	1304	package urxvt::term;
837		1305
838	=head2 The C<urxvt::term> Class	1306	=head2 The C<urxvt::term> Class
…		…
843		1311
844	# find on_xxx subs in the package and register them	1312	# find on_xxx subs in the package and register them
845	# as hooks	1313	# as hooks
846	sub register_package {	1314	sub register_package {
847	my ($self, $pkg, $argv) = @_;	1315	my ($self, $pkg, $argv) = @_;
		1316
		1317	no strict 'refs';
		1318
		1319	urxvt::verbose 6, "register package $pkg to $self";
		1320
		1321	@{"$pkg\::ISA"} = urxvt::term::extension::;
848		1322
849	my $proxy = bless {	1323	my $proxy = bless {
850	_pkg => $pkg,	1324	_pkg => $pkg,
851	argv => $argv,	1325	argv => $argv,
852	}, $pkg;	1326	}, $pkg;
…		…
859	$proxy->enable ($name => $ref);	1333	$proxy->enable ($name => $ref);
860	}	1334	}
861	}	1335	}
862	}	1336	}
863		1337
		1338	sub perl_libdirs {
		1339	map { split /:/ }
		1340	$_[0]->resource ("perl_lib"),
		1341	$ENV{URXVT_PERL_LIB},
		1342	"$ENV{HOME}/.urxvt/ext",
		1343	"$LIBDIR/perl"
		1344	}
		1345
		1346	sub scan_meta {
		1347	my ($self) = @_;
		1348	my @libdirs = perl_libdirs $self;
		1349
		1350	return if $self->{meta_libdirs} eq join "\x00", @libdirs;
		1351
		1352	my %meta;
		1353
		1354	$self->{meta_libdirs} = join "\x00", @libdirs;
		1355	$self->{meta} = \%meta;
		1356
		1357	for my $dir (reverse @libdirs) {
		1358	opendir my $fh, $dir
		1359	or next;
		1360	for my $ext (readdir $fh) {
		1361	$ext ne "."
		1362	and $ext ne ".."
		1363	and open my $fh, "<", "$dir/$ext"
		1364	or next;
		1365
		1366	while (<$fh>) {
		1367	if (/^#:META:X_RESOURCE:(.*)/) {
		1368	my ($pattern, $type, $desc) = split /:/, $1;
		1369	$pattern =~ s/^%(\.|$)/$ext$1/g; # % in pattern == extension name
		1370	if ($pattern =~ /[^a-zA-Z0-9\-\.]/) {
		1371	warn "$dir/$ext: meta resource '$pattern' contains illegal characters (not alphanumeric nor . nor *)\n";
		1372	} else {
		1373	$meta{resource}{$pattern} = [$ext, $type, $desc];
		1374	}
		1375	} elsif (/^\s*(?:#|$)/) {
		1376	# skip other comments and empty lines
		1377	} else {
		1378	last; # stop parsing on first non-empty non-comment line
		1379	}
		1380	}
		1381	}
		1382	}
		1383	}
		1384
864	=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]	1385	=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
865		1386
866	Creates a new terminal, very similar as if you had started it with system	1387	Creates a new terminal, very similar as if you had started it with system
867	C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like	1388	C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
868	hash which defines the environment of the new terminal.	1389	hash which defines the environment of the new terminal.
869		1390
870	Croaks (and probably outputs an error message) if the new instance	1391	Croaks (and probably outputs an error message) if the new instance
871	couldn't be created. Returns C<undef> if the new instance didn't	1392	couldn't be created. Returns C<undef> if the new instance didn't
872	initialise perl, and the terminal object otherwise. The C<init> and	1393	initialise perl, and the terminal object otherwise. The C<init> and
873	C<start> hooks will be called during this call.	1394	C<start> hooks will be called before this call returns, and are free to
		1395	refer to global data (which is race free).
874		1396
875	=cut	1397	=cut
876		1398
877	sub new {	1399	sub new {
878	my ($class, $env, @args) = @_;	1400	my ($class, $env, @args) = @_;
879		1401
		1402	$env or Carp::croak "environment hash missing in call to urxvt::term->new";
		1403	@args or Carp::croak "name argument missing in call to urxvt::term->new";
		1404
880	_new ([ map "$_=$env->{$_}", keys %$env ], @args);	1405	_new ([ map "$_=$env->{$_}", keys %$env ], \@args);
881	}	1406	}
882		1407
883	=item $term->destroy	1408	=item $term->destroy
884		1409
885	Destroy the terminal object (close the window, free resources	1410	Destroy the terminal object (close the window, free resources
886	etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event	1411	etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
887	watchers (timers, io watchers) are still active.	1412	watchers (timers, io watchers) are still active.
888		1413
		1414	=item $term->exec_async ($cmd[, @args])
		1415
		1416	Works like the combination of the C<fork>/C<exec> builtins, which executes
		1417	("starts") programs in the background. This function takes care of setting
		1418	the user environment before exec'ing the command (e.g. C<PATH>) and should
		1419	be preferred over explicit calls to C<exec> or C<system>.
		1420
		1421	Returns the pid of the subprocess or C<undef> on error.
		1422
		1423	=cut
		1424
		1425	sub exec_async {
		1426	my $self = shift;
		1427
		1428	my $pid = fork;
		1429
		1430	return $pid
		1431	if !defined $pid or $pid;
		1432
		1433	%ENV = %{ $self->env };
		1434
		1435	exec @_;
		1436	urxvt::_exit 255;
		1437	}
		1438
889	=item $isset = $term->option ($optval[, $set])	1439	=item $isset = $term->option ($optval[, $set])
890		1440
891	Returns true if the option specified by C<$optval> is enabled, and	1441	Returns true if the option specified by C<$optval> is enabled, and
892	optionally change it. All option values are stored by name in the hash	1442	optionally change it. All option values are stored by name in the hash
893	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.	1443	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
894		1444
895	Here is a a likely non-exhaustive list of option names, please see the	1445	Here is a likely non-exhaustive list of option names, please see the
896	source file F</src/optinc.h> to see the actual list:	1446	source file F</src/optinc.h> to see the actual list:
897		1447
898	borderLess console cursorBlink cursorUnderline hold iconic insecure	1448	borderLess buffered console cursorBlink cursorUnderline hold iconic
899	intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage	1449	insecure intensityStyles iso14755 iso14755_52 jumpScroll loginShell
		1450	mapAlert meta8 mouseWheelScrollPage override_redirect pastableTabs
900	pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating	1451	pointerBlank reverseVideo scrollBar scrollBar_floating scrollBar_right
901	scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer	1452	scrollTtyKeypress scrollTtyOutput scrollWithBuffer secondaryScreen
902	secondaryScreen secondaryScroll skipBuiltinGlyphs transparent	1453	secondaryScroll skipBuiltinGlyphs skipScroll transparent tripleclickwords
903	tripleclickwords utmpInhibit visualBell	1454	urgentOnBell utmpInhibit visualBell
904		1455
905	=item $value = $term->resource ($name[, $newval])	1456	=item $value = $term->resource ($name[, $newval])
906		1457
907	Returns the current resource value associated with a given name and	1458	Returns the current resource value associated with a given name and
908	optionally sets a new value. Setting values is most useful in the C<init>	1459	optionally sets a new value. Setting values is most useful in the C<init>
…		…
917	likely change).	1468	likely change).
918		1469
919	Please note that resource strings will currently only be freed when the	1470	Please note that resource strings will currently only be freed when the
920	terminal is destroyed, so changing options frequently will eat memory.	1471	terminal is destroyed, so changing options frequently will eat memory.
921		1472
922	Here is a a likely non-exhaustive list of resource names, not all of which	1473	Here is a likely non-exhaustive list of resource names, not all of which
923	are supported in every build, please see the source file F</src/rsinc.h>	1474	are supported in every build, please see the source file F</src/rsinc.h>
924	to see the actual list:	1475	to see the actual list:
925		1476
926	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont	1477	answerbackstring backgroundPixmap backspace_key blendtype blurradius
927	borderLess color cursorBlink cursorUnderline cutchars delete_key	1478	boldFont boldItalicFont borderLess buffered chdir color cursorBlink
928	display_name embed ext_bwidth fade font geometry hold iconName	1479	cursorUnderline cutchars delete_key depth display_name embed ext_bwidth
929	imFont imLocale inputMethod insecure int_bwidth intensityStyles	1480	fade font geometry hold iconName iconfile imFont imLocale inputMethod
		1481	insecure int_bwidth intensityStyles iso14755 iso14755_52 italicFont
930	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier	1482	jumpScroll letterSpace lineSpace loginShell mapAlert meta8 modifier
931	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2	1483	mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
932	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd	1484	perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
933	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating	1485	preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
934	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput	1486	scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
935	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle	1487	scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
936	shade term_name title transparent transparent_all tripleclickwords	1488	secondaryScreen secondaryScroll shade skipBuiltinGlyphs skipScroll
		1489	term_name title transient_for transparent tripleclickwords urgentOnBell
937	utmpInhibit visualBell	1490	utmpInhibit visualBell
938		1491
939	=cut	1492	=cut
940		1493
941	sub resource($$;$) {	1494	sub resource($$;$) {
942	my ($self, $name) = (shift, shift);	1495	my ($self, $name) = (shift, shift);
943	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);	1496	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
944	&urxvt::term::_resource	1497	goto &urxvt::term::_resource
945	}	1498	}
946		1499
947	=item $value = $term->x_resource ($pattern)	1500	=item $value = $term->x_resource ($pattern)
948		1501
949	Returns the X-Resource for the given pattern, excluding the program or	1502	Returns the X-Resource for the given pattern, excluding the program or
…		…
953		1506
954	This method should only be called during the C<on_start> hook, as there is	1507	This method should only be called during the C<on_start> hook, as there is
955	only one resource database per display, and later invocations might return	1508	only one resource database per display, and later invocations might return
956	the wrong resources.	1509	the wrong resources.
957		1510
958	=item $success = $term->parse_keysym ($keysym_spec, $command_string)	1511	=item $value = $term->x_resource_boolean ($pattern)
959		1512
		1513	Like C<x_resource>, above, but interprets the string value as a boolean
		1514	and returns C<1> for true values, C<0> for false values and C<undef> if
		1515	the resource or option isn't specified.
		1516
		1517	You should always use this method to parse boolean resources.
		1518
		1519	=cut
		1520
		1521	sub x_resource_boolean {
		1522	my $res = &x_resource;
		1523
		1524	$res =~ /^\s*(?:true|yes|on|1)\s*$/i ? 1 : defined $res && 0
		1525	}
		1526
		1527	=item $success = $term->parse_keysym ($key, $octets)
		1528
960	Adds a keymap translation exactly as specified via a resource. See the	1529	Adds a key binding exactly as specified via a resource. See the
961	C<keysym> resource in the @@RXVT_NAME@@(1) manpage.	1530	C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
		1531
		1532	=item $term->register_command ($keysym, $modifiermask, $string)
		1533
		1534	Adds a key binding. This is a lower level api compared to
		1535	C<parse_keysym>, as it expects a parsed key description, and can be
		1536	used only inside either the C<on_init> hook, to add a binding, or the
		1537	C<on_register_command> hook, to modify a parsed binding.
962		1538
963	=item $rend = $term->rstyle ([$new_rstyle])	1539	=item $rend = $term->rstyle ([$new_rstyle])
964		1540
965	Return and optionally change the current rendition. Text that is output by	1541	Return and optionally change the current rendition. Text that is output by
966	the terminal application will use this style.	1542	the terminal application will use this style.
…		…
974		1550
975	=item ($row, $col) = $term->selection_beg ([$row, $col])	1551	=item ($row, $col) = $term->selection_beg ([$row, $col])
976		1552
977	=item ($row, $col) = $term->selection_end ([$row, $col])	1553	=item ($row, $col) = $term->selection_end ([$row, $col])
978		1554
979	Return the current values of the selection mark, begin or end positions,	1555	Return the current values of the selection mark, begin or end positions.
980	and optionally set them to new values.	1556
		1557	When arguments are given, then the selection coordinates are set to
		1558	C<$row> and C<$col>, and the selection screen is set to the current
		1559	screen.
		1560
		1561	=item $screen = $term->selection_screen ([$screen])
		1562
		1563	Returns the current selection screen, and then optionally sets it.
981		1564
982	=item $term->selection_make ($eventtime[, $rectangular])	1565	=item $term->selection_make ($eventtime[, $rectangular])
983		1566
984	Tries to make a selection as set by C<selection_beg> and	1567	Tries to make a selection as set by C<selection_beg> and
985	C<selection_end>. If C<$rectangular> is true (default: false), a	1568	C<selection_end>. If C<$rectangular> is true (default: false), a
986	rectangular selection will be made. This is the prefered function to make	1569	rectangular selection will be made. This is the preferred function to make
987	a selection.	1570	a selection.
988		1571
989	=item $success = $term->selection_grab ($eventtime)	1572	=item $success = $term->selection_grab ($eventtime[, $clipboard])
990		1573
991	Try to request the primary selection text from the server (for example, as	1574	Try to acquire ownership of the primary (clipboard if C<$clipboard> is
		1575	true) selection from the server. The corresponding text can be set
992	set by the next method). No visual feedback will be given. This function	1576	with the next method. No visual feedback will be given. This function
993	is mostly useful from within C<on_sel_grab> hooks.	1577	is mostly useful from within C<on_sel_grab> hooks.
994		1578
995	=item $oldtext = $term->selection ([$newtext])	1579	=item $oldtext = $term->selection ([$newtext, $clipboard])
996		1580
997	Return the current selection text and optionally replace it by C<$newtext>.	1581	Return the current selection (clipboard if C<$clipboard> is true) text
		1582	and optionally replace it by C<$newtext>.
		1583
		1584	=item $term->selection_clear ([$clipboard])
		1585
		1586	Revoke ownership of the primary (clipboard if C<$clipboard> is true) selection.
998		1587
999	=item $term->overlay_simple ($x, $y, $text)	1588	=item $term->overlay_simple ($x, $y, $text)
1000		1589
1001	Create a simple multi-line overlay box. See the next method for details.	1590	Create a simple multi-line overlay box. See the next method for details.
1002		1591
…		…
1032		1621
1033	The methods currently supported on C<urxvt::overlay> objects are:	1622	The methods currently supported on C<urxvt::overlay> objects are:
1034		1623
1035	=over 4	1624	=over 4
1036		1625
1037	=item $overlay->set ($x, $y, $text, $rend)	1626	=item $overlay->set ($x, $y, $text[, $rend])
1038		1627
1039	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts	1628	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts
1040	text in rxvt-unicode's special encoding and an array of rendition values	1629	text in rxvt-unicode's special encoding and an array of rendition values
1041	at a specific position inside the overlay.	1630	at a specific position inside the overlay.
		1631
		1632	If C<$rend> is missing, then the rendition will not be changed.
1042		1633
1043	=item $overlay->hide	1634	=item $overlay->hide
1044		1635
1045	If visible, hide the overlay, but do not destroy it.	1636	If visible, hide the overlay, but do not destroy it.
1046		1637
…		…
1116		1707
1117	Normally its not a good idea to use this function, as programs might be	1708	Normally its not a good idea to use this function, as programs might be
1118	confused by changes in cursor position or scrolling. Its useful inside a	1709	confused by changes in cursor position or scrolling. Its useful inside a
1119	C<on_add_lines> hook, though.	1710	C<on_add_lines> hook, though.
1120		1711
		1712	=item $term->scr_change_screen ($screen)
		1713
		1714	Switch to given screen - 0 primary, 1 secondary.
		1715
1121	=item $term->cmd_parse ($octets)	1716	=item $term->cmd_parse ($octets)
1122		1717
1123	Similar to C<scr_add_lines>, but the argument must be in the	1718	Similar to C<scr_add_lines>, but the argument must be in the
1124	locale-specific encoding of the terminal and can contain command sequences	1719	locale-specific encoding of the terminal and can contain command sequences
1125	(escape codes) that will be interpreted.	1720	(escape codes) that will be interpreted.
1126		1721
1127	=item $term->tt_write ($octets)	1722	=item $term->tt_write ($octets)
1128		1723
1129	Write the octets given in C<$data> to the tty (i.e. as program input). To	1724	Write the octets given in C<$octets> to the tty (i.e. as program input). To
1130	pass characters instead of octets, you should convert your strings first	1725	pass characters instead of octets, you should convert your strings first
1131	to the locale-specific encoding using C<< $term->locale_encode >>.	1726	to the locale-specific encoding using C<< $term->locale_encode >>.
		1727
		1728	=item $term->tt_paste ($octets)
		1729
		1730	Write the octets given in C<$octets> to the tty as a paste, converting NL to
		1731	CR and bracketing the data with control sequences if bracketed paste mode
		1732	is set.
1132		1733
1133	=item $old_events = $term->pty_ev_events ([$new_events])	1734	=item $old_events = $term->pty_ev_events ([$new_events])
1134		1735
1135	Replaces the event mask of the pty watcher by the given event mask. Can	1736	Replaces the event mask of the pty watcher by the given event mask. Can
1136	be used to suppress input and output handling to the pty/tty. See the	1737	be used to suppress input and output handling to the pty/tty. See the
1137	description of C<< urxvt::timer->events >>. Make sure to always restore	1738	description of C<< urxvt::timer->events >>. Make sure to always restore
1138	the previous value.	1739	the previous value.
1139		1740
		1741	=item $fd = $term->pty_fd
		1742
		1743	Returns the master file descriptor for the pty in use, or C<-1> if no pty
		1744	is used.
		1745
1140	=item $windowid = $term->parent	1746	=item $windowid = $term->parent
1141		1747
1142	Return the window id of the toplevel window.	1748	Return the window id of the toplevel window.
1143		1749
1144	=item $windowid = $term->vt	1750	=item $windowid = $term->vt
1145		1751
1146	Return the window id of the terminal window.	1752	Return the window id of the terminal window.
1147		1753
		1754	=item $term->vt_emask_add ($x_event_mask)
		1755
		1756	Adds the specified events to the vt event mask. Useful e.g. when you want
		1757	to receive pointer events all the times:
		1758
		1759	$term->vt_emask_add (urxvt::PointerMotionMask);
		1760
		1761	=item $term->set_urgency ($set)
		1762
		1763	Enable/disable the urgency hint on the toplevel window.
		1764
		1765	=item $term->focus_in
		1766
		1767	=item $term->focus_out
		1768
		1769	=item $term->key_press ($state, $keycode[, $time])
		1770
		1771	=item $term->key_release ($state, $keycode[, $time])
		1772
		1773	Deliver various fake events to to terminal.
		1774
1148	=item $window_width = $term->width	1775	=item $window_width = $term->width
1149		1776
1150	=item $window_height = $term->height	1777	=item $window_height = $term->height
1151		1778
1152	=item $font_width = $term->fwidth	1779	=item $font_width = $term->fwidth
…		…
1165		1792
1166	=item $max_scrollback = $term->saveLines	1793	=item $max_scrollback = $term->saveLines
1167		1794
1168	=item $nrow_plus_saveLines = $term->total_rows	1795	=item $nrow_plus_saveLines = $term->total_rows
1169		1796
1170	=item $lines_in_scrollback = $term->nsaved	1797	=item $topmost_scrollback_row = $term->top_row
1171		1798
1172	Return various integers describing terminal characteristics.	1799	Return various integers describing terminal characteristics.
1173		1800
1174	=item $x_display = $term->display_id	1801	=item $x_display = $term->display_id
1175		1802
…		…
1182	=item $env = $term->env	1809	=item $env = $term->env
1183		1810
1184	Returns a copy of the environment in effect for the terminal as a hashref	1811	Returns a copy of the environment in effect for the terminal as a hashref
1185	similar to C<\%ENV>.	1812	similar to C<\%ENV>.
1186		1813
		1814	=item @envv = $term->envv
		1815
		1816	Returns the environment as array of strings of the form C<VAR=VALUE>.
		1817
		1818	=item @argv = $term->argv
		1819
		1820	Return the argument vector as this terminal, similar to @ARGV, but
		1821	includes the program name as first element.
		1822
1187	=cut	1823	=cut
1188		1824
1189	sub env {	1825	sub env {
1190	if (my $env = $_[0]->_env) {
1191	+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), @$env }	1826	+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), $_[0]->envv }
1192	} else {
1193	+{ %ENV }
1194	}
1195	}	1827	}
1196		1828
1197	=item $modifiermask = $term->ModLevel3Mask	1829	=item $modifiermask = $term->ModLevel3Mask
1198		1830
1199	=item $modifiermask = $term->ModMetaMask	1831	=item $modifiermask = $term->ModMetaMask
…		…
1201	=item $modifiermask = $term->ModNumLockMask	1833	=item $modifiermask = $term->ModNumLockMask
1202		1834
1203	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often	1835	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1204	AltGr), the meta key (often Alt) and the num lock key, if applicable.	1836	AltGr), the meta key (often Alt) and the num lock key, if applicable.
1205		1837
		1838	=item $screen = $term->current_screen
		1839
		1840	Returns the currently displayed screen (0 primary, 1 secondary).
		1841
		1842	=item $cursor_is_hidden = $term->hidden_cursor
		1843
		1844	Returns whether the cursor is currently hidden or not.
		1845
1206	=item $view_start = $term->view_start ([$newvalue])	1846	=item $view_start = $term->view_start ([$newvalue])
1207		1847
1208	Returns the negative row number of the topmost line. Minimum value is	1848	Returns the row number of the topmost displayed line. Maximum value is
1209	C<0>, which displays the normal terminal contents. Larger values scroll	1849	C<0>, which displays the normal terminal contents. Lower values scroll
1210	this many lines into the scrollback buffer.	1850	this many lines into the scrollback buffer.
1211		1851
1212	=item $term->want_refresh	1852	=item $term->want_refresh
1213		1853
1214	Requests a screen refresh. At the next opportunity, rxvt-unicode will	1854	Requests a screen refresh. At the next opportunity, rxvt-unicode will
…		…
1217		1857
1218	Used after changing terminal contents to display them.	1858	Used after changing terminal contents to display them.
1219		1859
1220	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])	1860	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
1221		1861
1222	Returns the text of the entire row with number C<$row_number>. Row C<0>	1862	Returns the text of the entire row with number C<$row_number>. Row C<< $term->top_row >>
1223	is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost	1863	is the topmost terminal line, row C<< $term->nrow-1 >> is the bottommost
1224	terminal line. The scrollback buffer starts at line C<-1> and extends to
1225	line C<< -$term->nsaved >>. Nothing will be returned if a nonexistent line	1864	terminal line. Nothing will be returned if a nonexistent line
1226	is requested.	1865	is requested.
1227		1866
1228	If C<$new_text> is specified, it will replace characters in the current	1867	If C<$new_text> is specified, it will replace characters in the current
1229	line, starting at column C<$start_col> (default C<0>), which is useful	1868	line, starting at column C<$start_col> (default C<0>), which is useful
1230	to replace only parts of a line. The font index in the rendition will	1869	to replace only parts of a line. The font index in the rendition will
1231	automatically be updated.	1870	automatically be updated.
1232		1871
1233	C<$text> is in a special encoding: tabs and wide characters that use more	1872	C<$text> is in a special encoding: tabs and wide characters that use more
1234	than one cell when displayed are padded with urxvt::NOCHAR characters	1873	than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
1235	(C<chr 65535>). Characters with combining characters and other characters	1874	characters. Characters with combining characters and other characters that
1236	that do not fit into the normal tetx encoding will be replaced with	1875	do not fit into the normal text encoding will be replaced with characters
1237	characters in the private use area.	1876	in the private use area.
1238		1877
1239	You have to obey this encoding when changing text. The advantage is	1878	You have to obey this encoding when changing text. The advantage is
1240	that C<substr> and similar functions work on screen cells and not on	1879	that C<substr> and similar functions work on screen cells and not on
1241	characters.	1880	characters.
1242		1881
…		…
1386	where one character corresponds to one screen cell. See	2025	where one character corresponds to one screen cell. See
1387	C<< $term->ROW_t >> for details.	2026	C<< $term->ROW_t >> for details.
1388		2027
1389	=item $string = $term->special_decode $text	2028	=item $string = $term->special_decode $text
1390		2029
1391	Converts rxvt-unicodes text reprsentation into a perl string. See	2030	Converts rxvt-unicodes text representation into a perl string. See
1392	C<< $term->ROW_t >> for details.	2031	C<< $term->ROW_t >> for details.
1393		2032
1394	=item $success = $term->grab_button ($button, $modifiermask)	2033	=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
1395		2034
		2035	=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
		2036
1396	Registers a synchronous button grab. See the XGrabButton manpage.	2037	Register/unregister a synchronous button grab. See the XGrabButton
		2038	manpage.
1397		2039
1398	=item $success = $term->grab ($eventtime[, $sync])	2040	=item $success = $term->grab ($eventtime[, $sync])
1399		2041
1400	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or	2042	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
1401	synchronous (C<$sync> is true). Also remembers the grab timestampe.	2043	synchronous (C<$sync> is true). Also remembers the grab timestamp.
1402		2044
1403	=item $term->allow_events_async	2045	=item $term->allow_events_async
1404		2046
1405	Calls XAllowEvents with AsyncBoth for the most recent grab.	2047	Calls XAllowEvents with AsyncBoth for the most recent grab.
1406		2048
…		…
1413	Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most	2055	Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
1414	recent grab.	2056	recent grab.
1415		2057
1416	=item $term->ungrab	2058	=item $term->ungrab
1417		2059
1418	Calls XUngrab for the most recent grab. Is called automatically on	2060	Calls XUngrabPointer and XUngrabKeyboard for the most recent grab. Is called automatically on
1419	evaluation errors, as it is better to lose the grab in the error case as	2061	evaluation errors, as it is better to lose the grab in the error case as
1420	the session.	2062	the session.
		2063
		2064	=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
		2065
		2066	=item $atom_name = $term->XGetAtomName ($atom)
		2067
		2068	=item @atoms = $term->XListProperties ($window)
		2069
		2070	=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
		2071
		2072	=item $term->XChangeProperty ($window, $property, $type, $format, $octets)
		2073
		2074	=item $term->XDeleteProperty ($window, $property)
		2075
		2076	=item $window = $term->DefaultRootWindow
		2077
		2078	=item $term->XReparentWindow ($window, $parent, [$x, $y])
		2079
		2080	=item $term->XMapWindow ($window)
		2081
		2082	=item $term->XUnmapWindow ($window)
		2083
		2084	=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
		2085
		2086	=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
		2087
		2088	=item $term->XChangeInput ($window, $add_events[, $del_events])
		2089
		2090	=item $keysym = $term->XStringToKeysym ($string)
		2091
		2092	=item $string = $term->XKeysymToString ($keysym)
		2093
		2094	Various X or X-related functions. The C<$term> object only serves as
		2095	the source of the display, otherwise those functions map more-or-less
		2096	directly onto the X functions of the same name.
1421		2097
1422	=back	2098	=back
1423		2099
1424	=cut	2100	=cut
1425		2101
…		…
1489	my ($self, $text, $cb) = @_;	2165	my ($self, $text, $cb) = @_;
1490		2166
1491	$self->add_item ({ type => "button", text => $text, activate => $cb});	2167	$self->add_item ({ type => "button", text => $text, activate => $cb});
1492	}	2168	}
1493		2169
1494	=item $popup->add_toggle ($text, $cb, $initial_value)	2170	=item $popup->add_toggle ($text, $initial_value, $cb)
1495		2171
1496	Adds a toggle/checkbox item to the popup. Teh callback gets called	2172	Adds a toggle/checkbox item to the popup. The callback gets called
1497	whenever it gets toggled, with a boolean indicating its value as its first	2173	whenever it gets toggled, with a boolean indicating its new value as its
1498	argument.	2174	first argument.
1499		2175
1500	=cut	2176	=cut
1501		2177
1502	sub add_toggle {	2178	sub add_toggle {
1503	my ($self, $text, $cb, $value) = @_;	2179	my ($self, $text, $value, $cb) = @_;
1504		2180
1505	my $item; $item = {	2181	my $item; $item = {
1506	type => "button",	2182	type => "button",
1507	text => " $text",	2183	text => " $text",
1508	value => $value,	2184	value => $value,
…		…
1527	my $env = $self->{term}->env;	2203	my $env = $self->{term}->env;
1528	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.	2204	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1529	delete $env->{LC_ALL};	2205	delete $env->{LC_ALL};
1530	$env->{LC_CTYPE} = $self->{term}->locale;	2206	$env->{LC_CTYPE} = $self->{term}->locale;
1531		2207
1532	urxvt::term->new ($env, $self->{term}->resource ("name"),	2208	my $term = urxvt::term->new (
1533	"--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0,	2209	$env, "popup",
		2210	"--perl-lib" => "", "--perl-ext-common" => "",
		2211	"-pty-fd" => -1, "-sl" => 0,
		2212	"-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1534	"--transient-for" => $self->{term}->parent,	2213	"--transient-for" => $self->{term}->parent,
1535	"-display" => $self->{term}->display_id,	2214	"-display" => $self->{term}->display_id,
1536	"-pe" => "urxvt-popup")	2215	"-pe" => "urxvt-popup",
1537	or die "unable to create popup window\n";	2216	) or die "unable to create popup window\n";
		2217
		2218	unless (delete $term->{urxvt_popup_init_done}) {
		2219	$term->ungrab;
		2220	$term->destroy;
		2221	die "unable to initialise popup window\n";
		2222	}
1538	}	2223	}
1539		2224
1540	sub DESTROY {	2225	sub DESTROY {
1541	my ($self) = @_;	2226	my ($self) = @_;
1542		2227
1543	delete $self->{term}{_destroy}{$self};	2228	delete $self->{term}{_destroy}{$self};
1544	$self->{term}->ungrab;	2229	$self->{term}->ungrab;
1545	}	2230	}
1546		2231
1547	=back	2232	=back
		2233
		2234	=cut
		2235
		2236	package urxvt::watcher;
1548		2237
1549	=head2 The C<urxvt::timer> Class	2238	=head2 The C<urxvt::timer> Class
1550		2239
1551	This class implements timer watchers/events. Time is represented as a	2240	This class implements timer watchers/events. Time is represented as a
1552	fractional number of seconds since the epoch. Example:	2241	fractional number of seconds since the epoch. Example:
…		…
1556	->new	2245	->new
1557	->interval (1)	2246	->interval (1)
1558	->cb (sub {	2247	->cb (sub {
1559	$term->{overlay}->set (0, 0,	2248	$term->{overlay}->set (0, 0,
1560	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);	2249	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
1561	});	2250	});
1562		2251
1563	=over 4	2252	=over 4
1564		2253
1565	=item $timer = new urxvt::timer	2254	=item $timer = new urxvt::timer
1566		2255
…		…
1569		2258
1570	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })	2259	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })
1571		2260
1572	Set the callback to be called when the timer triggers.	2261	Set the callback to be called when the timer triggers.
1573		2262
1574	=item $tstamp = $timer->at
1575
1576	Return the time this watcher will fire next.
1577
1578	=item $timer = $timer->set ($tstamp)	2263	=item $timer = $timer->set ($tstamp[, $interval])
1579		2264
1580	Set the time the event is generated to $tstamp.	2265	Set the time the event is generated to $tstamp (and optionally specifies a
		2266	new $interval).
1581		2267
1582	=item $timer = $timer->interval ($interval)	2268	=item $timer = $timer->interval ($interval)
1583		2269
1584	Normally (and when C<$interval> is C<0>), the timer will automatically	2270	By default (and when C<$interval> is C<0>), the timer will automatically
1585	stop after it has fired once. If C<$interval> is non-zero, then the timer	2271	stop after it has fired once. If C<$interval> is non-zero, then the timer
1586	is automatically rescheduled at the given intervals.	2272	is automatically rescheduled at the given intervals.
1587		2273
1588	=item $timer = $timer->start	2274	=item $timer = $timer->start
1589		2275
1590	Start the timer.	2276	Start the timer.
1591		2277
1592	=item $timer = $timer->start ($tstamp)	2278	=item $timer = $timer->start ($tstamp[, $interval])
1593		2279
1594	Set the event trigger time to C<$tstamp> and start the timer.	2280	Set the event trigger time to C<$tstamp> and start the timer. Optionally
		2281	also replaces the interval.
		2282
		2283	=item $timer = $timer->after ($delay[, $interval])
		2284
		2285	Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1595		2286
1596	=item $timer = $timer->stop	2287	=item $timer = $timer->stop
1597		2288
1598	Stop the timer.	2289	Stop the timer.
1599		2290
…		…
1605		2296
1606	$term->{socket} = ...	2297	$term->{socket} = ...
1607	$term->{iow} = urxvt::iow	2298	$term->{iow} = urxvt::iow
1608	->new	2299	->new
1609	->fd (fileno $term->{socket})	2300	->fd (fileno $term->{socket})
1610	->events (urxvt::EVENT_READ)	2301	->events (urxvt::EV_READ)
1611	->start	2302	->start
1612	->cb (sub {	2303	->cb (sub {
1613	my ($iow, $revents) = @_;	2304	my ($iow, $revents) = @_;
1614	# $revents must be 1 here, no need to check	2305	# $revents must be 1 here, no need to check
1615	sysread $term->{socket}, my $buf, 8192	2306	sysread $term->{socket}, my $buf, 8192
…		…
1628	Set the callback to be called when io events are triggered. C<$reventmask>	2319	Set the callback to be called when io events are triggered. C<$reventmask>
1629	is a bitset as described in the C<events> method.	2320	is a bitset as described in the C<events> method.
1630		2321
1631	=item $iow = $iow->fd ($fd)	2322	=item $iow = $iow->fd ($fd)
1632		2323
1633	Set the filedescriptor (not handle) to watch.	2324	Set the file descriptor (not handle) to watch.
1634		2325
1635	=item $iow = $iow->events ($eventmask)	2326	=item $iow = $iow->events ($eventmask)
1636		2327
1637	Set the event mask to watch. The only allowed values are	2328	Set the event mask to watch. The only allowed values are
1638	C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed	2329	C<urxvt::EV_READ> and C<urxvt::EV_WRITE>, which might be ORed
1639	together, or C<urxvt::EVENT_NONE>.	2330	together, or C<urxvt::EV_NONE>.
1640		2331
1641	=item $iow = $iow->start	2332	=item $iow = $iow->start
1642		2333
1643	Start watching for requested events on the given handle.	2334	Start watching for requested events on the given handle.
1644		2335
1645	=item $iow = $iow->stop	2336	=item $iow = $iow->stop
1646		2337
1647	Stop watching for events on the given filehandle.	2338	Stop watching for events on the given file handle.
		2339
		2340	=back
		2341
		2342	=head2 The C<urxvt::iw> Class
		2343
		2344	This class implements idle watchers, that get called automatically when
		2345	the process is idle. They should return as fast as possible, after doing
		2346	some useful work.
		2347
		2348	=over 4
		2349
		2350	=item $iw = new urxvt::iw
		2351
		2352	Create a new idle watcher object in stopped state.
		2353
		2354	=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
		2355
		2356	Set the callback to be called when the watcher triggers.
		2357
		2358	=item $timer = $timer->start
		2359
		2360	Start the watcher.
		2361
		2362	=item $timer = $timer->stop
		2363
		2364	Stop the watcher.
		2365
		2366	=back
		2367
		2368	=head2 The C<urxvt::pw> Class
		2369
		2370	This class implements process watchers. They create an event whenever a
		2371	process exits, after which they stop automatically.
		2372
		2373	my $pid = fork;
		2374	...
		2375	$term->{pw} = urxvt::pw
		2376	->new
		2377	->start ($pid)
		2378	->cb (sub {
		2379	my ($pw, $exit_status) = @_;
		2380	...
		2381	});
		2382
		2383	=over 4
		2384
		2385	=item $pw = new urxvt::pw
		2386
		2387	Create a new process watcher in stopped state.
		2388
		2389	=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
		2390
		2391	Set the callback to be called when the timer triggers.
		2392
		2393	=item $pw = $timer->start ($pid)
		2394
		2395	Tells the watcher to start watching for process C<$pid>.
		2396
		2397	=item $pw = $pw->stop
		2398
		2399	Stop the watcher.
1648		2400
1649	=back	2401	=back
1650		2402
1651	=head1 ENVIRONMENT	2403	=head1 ENVIRONMENT
1652		2404
…		…
1661		2413
1662	=item >= 3 - script loading and management	2414	=item >= 3 - script loading and management
1663		2415
1664	=item >=10 - all called hooks	2416	=item >=10 - all called hooks
1665		2417
1666	=item >=11 - hook reutrn values	2418	=item >=11 - hook return values
1667		2419
1668	=back	2420	=back
1669		2421
1670	=head1 AUTHOR	2422	=head1 AUTHOR
1671		2423
1672	Marc Lehmann <pcg@goof.com>	2424	Marc Lehmann <schmorp@schmorp.de>
1673	http://software.schmorp.de/pkg/rxvt-unicode	2425	http://software.schmorp.de/pkg/rxvt-unicode
1674		2426
1675	=cut	2427	=cut
1676		2428
1677	1	2429	1
		2430
		2431	# vim: sw=3:

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