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Revision 1.85 by root, Thu Jan 12 03:32:56 2006 UTC vs.
Revision 1.158 by ayin, Wed Oct 31 15:17:51 2007 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' 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>
39		42
		43	Or by adding them to the resource for extensions loaded by default:
		44
		45	URxvt.perl-ext-common: default,automove-background,selection-autotransform
		46
40	=over 4	47	=over 4
41		48
42	=item selection (enabled by default)	49	=item selection (enabled by default)
43		50
44	(More) intelligent selection. This extension tries to be more intelligent	51	(More) intelligent selection. This extension tries to be more intelligent
45	when the user extends selections (double-click). Right now, it tries to	52	when the user extends selections (double-click and further clicks). Right
46	select urls and complete shell-quoted arguments, which is very convenient,	53	now, it tries to select words, urls and complete shell-quoted
47	too, if your F<ls> supports C<--quoting-style=shell>.	54	arguments, which is very convenient, too, if your F<ls> supports
		55	C<--quoting-style=shell>.
48		56
		57	A double-click usually selects the word under the cursor, further clicks
		58	will enlarge the selection.
		59
		60	The selection works by trying to match a number of regexes and displaying
		61	them in increasing order of length. You can add your own regexes by
		62	specifying resources of the form:
		63
		64	URxvt.selection.pattern-0: perl-regex
		65	URxvt.selection.pattern-1: perl-regex
		66	...
		67
		68	The index number (0, 1...) must not have any holes, and each regex must
		69	contain at least one pair of capturing parentheses, which will be used for
		70	the match. For example, the following adds a regex that matches everything
		71	between two vertical bars:
		72
		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: ^(/[^:]+):\
		81
		82	You can look at the source of the selection extension to see more
		83	interesting uses, such as parsing a line from beginning to end.
		84
49	It also offers the following bindable keyboard command:	85	This extension also offers following bindable keyboard commands:
50		86
51	=over 4	87	=over 4
52		88
53	=item rot13	89	=item rot13
54		90
…		…
61	=item option-popup (enabled by default)	97	=item option-popup (enabled by default)
62		98
63	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
64	runtime.	100	runtime.
65		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
66	=item selection-popup (enabled by default)	119	=item selection-popup (enabled by default)
67		120
68	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
69	text into various other formats/action (such as uri unescaping, perl	122	text into various other formats/action (such as uri unescaping, perl
70	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	};
71		143
72	=item searchable-scrollback<hotkey> (enabled by default)	144	=item searchable-scrollback<hotkey> (enabled by default)
73		145
74	Adds regex search functionality to the scrollback buffer, triggered	146	Adds regex search functionality to the scrollback buffer, triggered
75	by a hotkey (default: C<M-s>). When in search mode, normal terminal	147	by a hotkey (default: C<M-s>). While in search mode, normal terminal
76	input/output is suspended.	148	input/output is suspended and a regex is displayed at the bottom of the
		149	screen.
77		150
78	C</> starts an incremental regex search, C<n> searches further, C<p> or	151	Inputting characters appends them to the regex and continues incremental
79	C<N> jump to the previous match, C<G> jumps to the bottom and clears the	152	search. C<BackSpace> removes a character from the regex, C<Up> and C<Down>
80	history, C<enter> leaves search mode at the current position and C<escape>	153	search upwards/downwards in the scrollback buffer, C<End> jumps to the
81	returns to the original position.	154	bottom. C<Escape> leaves search mode and returns to the point where search
		155	was started, while C<Enter> or C<Return> stay at the current position and
		156	additionally stores the first match in the current line into the primary
		157	selection if the C<Shift> modifier is active.
82		158
83	=item digital-clock	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.
84		162
85	Displays a digital clock using the built-in overlay.	163	See L<perlre> for more info about perl regular expression syntax.
86		164
87	=item mark-urls	165	=item readline (enabled by default)
88		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 (the 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.
		189
		190	=item selection-autotransform
		191
		192	This selection allows you to do automatic transforms on a selection
		193	whenever a selection is made.
		194
		195	It works by specifying perl snippets (most useful is a single C<s///>
		196	operator) that modify C<$_> as resources:
		197
		198	URxvt.selection-autotransform.0: transform
		199	URxvt.selection-autotransform.1: transform
		200	...
		201
		202	For example, the following will transform selections of the form
		203	C<filename:number>, often seen in compiler messages, into C<vi +$filename
		204	$word>:
		205
		206	URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
		207
		208	And this example matches the same,but replaces it with vi-commands you can
		209	paste directly into your (vi :) editor:
		210
		211	URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
		212
		213	Of course, this can be modified to suit your needs and your editor :)
		214
		215	To expand the example above to typical perl error messages ("XXX at
		216	FILENAME line YYY."), you need a slightly more elaborate solution:
		217
		218	URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
		219	URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
		220
		221	The first line tells the selection code to treat the unchanging part of
		222	every error message as a selection pattern, and the second line transforms
		223	the message into vi commands to load the file.
		224
		225	=item tabbed
		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
89	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
90	make them clickable. When middle-clicked, the program specified in the	251	matching a certain pattern and make it clickable. When clicked with the
91	resource C<urlLauncher> (default C<x-www-browser>) will be started.	252	mouse button specified in the C<matcher.button> resource (default 2, or
		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 from the keyboard.
		265	Simply bind a keysym to "perl:matcher" as seen in the example below.
		266
		267	Example configuration:
		268
		269	URxvt.perl-ext: default,matcher
		270	URxvt.urlLauncher: sensible-browser
		271	URxvt.keysym.C-Delete: perl:matcher
		272	URxvt.matcher.button: 1
		273	URxvt.matcher.pattern.1: \\bwww\\.[\\w-]+\\.[\\w./?&@#-]*[\\w/-]
		274	URxvt.matcher.pattern.2: \\B(/\\S+?):(\\d+)(?=:|$)
		275	URxvt.matcher.launcher.2: gvim +$2 $1
		276
		277	=item xim-onthespot
		278
		279	This (experimental) perl extension implements OnTheSpot editing. It does
		280	not work perfectly, and some input methods don't seem to work well with
		281	OnTheSpot editing in general, but it seems to work at least for SCIM and
		282	kinput2.
		283
		284	You enable it by specifying this extension and a preedit style of
		285	C<OnTheSpot>, i.e.:
		286
		287	@@RXVT_NAME@@ -pt OnTheSpot -pe xim-onthespot
		288
		289	=item kuake<hotkey>
		290
		291	A very primitive quake-console-like extension. It was inspired by a
		292	description of how the programs C<kuake> and C<yakuake> work: Whenever the
		293	user presses a global accelerator key (by default C<F10>), the terminal
		294	will show or hide itself. Another press of the accelerator key will hide
		295	or show it again.
		296
		297	Initially, the window will not be shown when using this extension.
		298
		299	This is useful if you need a single terminal that is not using any desktop
		300	space most of the time but is quickly available at the press of a key.
		301
		302	The accelerator key is grabbed regardless of any modifiers, so this
		303	extension will actually grab a physical key just for this function.
		304
		305	If you want a quake-like animation, tell your window manager to do so
		306	(fvwm can do it).
		307
		308	=item automove-background
		309
		310	This is basically a very small extension that dynamically changes the
		311	background pixmap offset to the window position, in effect creating the
		312	same effect as pseudo transparency with a custom pixmap. No scaling is
		313	supported in this mode. Example:
		314
		315	@@RXVT_NAME@@ -pixmap background.xpm -pe automove-background
		316
		317	L<http://wiki.archlinux.org/index.php/Perl_Background_Rotation/Extensions>
		318	shows how this extension can be used to implement an automatically blurred
		319	transparent background.
92		320
93	=item block-graphics-to-ascii	321	=item block-graphics-to-ascii
94		322
95	A not very useful example of filtering all text output to the terminal,	323	A not very useful example of filtering all text output to the terminal
96	by replacing all line-drawing characters (U+2500 .. U+259F) by a	324	by replacing all line-drawing characters (U+2500 .. U+259F) by a
97	similar-looking ascii character.	325	similar-looking ascii character.
		326
		327	=item digital-clock
		328
		329	Displays a digital clock using the built-in overlay.
		330
		331	=item remote-clipboard
		332
		333	Somewhat of a misnomer, this extension adds two menu entries to the
		334	selection popup that allows one to run external commands to store the
		335	selection somewhere and fetch it again.
		336
		337	We use it to implement a "distributed selection mechanism", which just
		338	means that one command uploads the file to a remote server, and another
		339	reads it.
		340
		341	The commands can be set using the C<URxvt.remote-selection.store> and
		342	C<URxvt.remote-selection.fetch> resources. The first should read the
		343	selection to store from STDIN (always in UTF-8), the second should provide
		344	the selection data on STDOUT (also in UTF-8).
		345
		346	The defaults (which are likely useless to you) use rsh and cat:
		347
		348	URxvt.remote-selection.store: rsh ruth 'cat >/tmp/distributed-selection'
		349	URxvt.remote-selection.fetch: rsh ruth 'cat /tmp/distributed-selection'
		350
		351	=item selection-pastebin
		352
		353	This is a little rarely useful extension that Uploads the selection as
		354	textfile to a remote site (or does other things). (The implementation is
		355	not currently secure for use in a multiuser environment as it writes to
		356	F</tmp> directly.).
		357
		358	It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
		359	i.e.
		360
		361	URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
		362
		363	Pressing this combination runs a command with C<%> replaced by the name of
		364	the textfile. This command can be set via a resource:
		365
		366	URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
		367
		368	And the default is likely not useful to anybody but the few people around
		369	here :)
		370
		371	The name of the textfile is the hex encoded md5 sum of the selection, so
		372	the same content should lead to the same filename.
		373
		374	After a successful upload the selection will be replaced by the text given
		375	in the C<selection-pastebin-url> resource (again, the % is the placeholder
		376	for the filename):
		377
		378	URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
		379
		380	I<Note to xrdb users:> xrdb uses the C preprocessor, which might interpret
		381	the double C</> characters as comment start. Use C<\057\057> instead,
		382	which works regardless of wether xrdb is used to parse the resource file
		383	or not.
98		384
99	=item example-refresh-hooks	385	=item example-refresh-hooks
100		386
101	Displays a very simple digital clock in the upper right corner of the	387	Displays a very simple digital clock in the upper right corner of the
102	window. Illustrates overwriting the refresh callbacks to create your own	388	window. Illustrates overwriting the refresh callbacks to create your own
…		…
142		428
143	=back	429	=back
144		430
145	=head2 Extension Objects	431	=head2 Extension Objects
146		432
147	Very perl extension is a perl class. A separate perl object is created	433	Every perl extension is a perl class. A separate perl object is created
148	for each terminal and each extension and passed as the first parameter to	434	for each terminal, and each terminal has its own set of extenion objects,
149	hooks. So extensions can use their C<$self> object without having to think	435	which are passed as the first parameter to hooks. So extensions can use
150	about other extensions, with the exception of methods and members that	436	their C<$self> object without having to think about clashes with other
		437	extensions or other terminals, with the exception of methods and members
151	begin with an underscore character C<_>: these are reserved for internal	438	that begin with an underscore character C<_>: these are reserved for
152	use.	439	internal use.
153		440
154	Although it isn't a C<urxvt::term> object, you can call all methods of the	441	Although it isn't a C<urxvt::term> object, you can call all methods of the
155	C<urxvt::term> class on this object.	442	C<urxvt::term> class on this object.
156		443
157	It has the following methods and data members:	444	It has the following methods and data members:
…		…
178	=head2 Hooks	465	=head2 Hooks
179		466
180	The following subroutines can be declared in extension files, and will be	467	The following subroutines can be declared in extension files, and will be
181	called whenever the relevant event happens.	468	called whenever the relevant event happens.
182		469
183	The first argument passed to them is an extension oject as described in	470	The first argument passed to them is an extension object as described in
184	the in the C<Extension Objects> section.	471	the in the C<Extension Objects> section.
185		472
186	B<All> of these hooks must return a boolean value. If it is true, then the	473	B<All> of these hooks must return a boolean value. If any of the called
187	event counts as being I<consumed>, and the invocation of other hooks is	474	hooks returns true, then the event counts as being I<consumed>, and the
188	skipped, and the relevant action might not be carried out by the C++ code.	475	relevant action might not be carried out by the C++ code.
189		476
190	I<< When in doubt, return a false value (preferably C<()>). >>	477	I<< When in doubt, return a false value (preferably C<()>). >>
191		478
192	=over 4	479	=over 4
193		480
194	=item on_init $term	481	=item on_init $term
195		482
196	Called after a new terminal object has been initialized, but before	483	Called after a new terminal object has been initialized, but before
197	windows are created or the command gets run. Most methods are unsafe to	484	windows are created or the command gets run. Most methods are unsafe to
198	call or deliver senseless data, as terminal size and other characteristics	485	call or deliver senseless data, as terminal size and other characteristics
199	have not yet been determined. You can safely query and change resources,	486	have not yet been determined. You can safely query and change resources
200	though.	487	and options, though. For many purposes the C<on_start> hook is a better
		488	place.
		489
		490	=item on_start $term
		491
		492	Called at the very end of initialisation of a new terminal, just before
		493	trying to map (display) the toplevel and returning to the main loop.
		494
		495	=item on_destroy $term
		496
		497	Called whenever something tries to destroy terminal, when the terminal is
		498	still fully functional (not for long, though).
201		499
202	=item on_reset $term	500	=item on_reset $term
203		501
204	Called after the screen is "reset" for any reason, such as resizing or	502	Called after the screen is "reset" for any reason, such as resizing or
205	control sequences. Here is where you can react on changes to size-related	503	control sequences. Here is where you can react on changes to size-related
206	variables.	504	variables.
207		505
208	=item on_start $term	506	=item on_child_start $term, $pid
209		507
210	Called at the very end of initialisation of a new terminal, just before	508	Called just after the child process has been C<fork>ed.
211	returning to the mainloop.	509
		510	=item on_child_exit $term, $status
		511
		512	Called just after the child process has exited. C<$status> is the status
		513	from C<waitpid>.
212		514
213	=item on_sel_make $term, $eventtime	515	=item on_sel_make $term, $eventtime
214		516
215	Called whenever a selection has been made by the user, but before the	517	Called whenever a selection has been made by the user, but before the
216	selection text is copied, so changes to the beginning, end or type of the	518	selection text is copied, so changes to the beginning, end or type of the
…		…
223		525
224	Called whenever a selection has been copied, but before the selection is	526	Called whenever a selection has been copied, but before the selection is
225	requested from the server. The selection text can be queried and changed	527	requested from the server. The selection text can be queried and changed
226	by calling C<< $term->selection >>.	528	by calling C<< $term->selection >>.
227		529
228	Returning a true value aborts selection grabbing. It will still be hilighted.	530	Returning a true value aborts selection grabbing. It will still be highlighted.
229		531
230	=item on_sel_extend $term	532	=item on_sel_extend $term
231		533
232	Called whenever the user tries to extend the selection (e.g. with a double	534	Called whenever the user tries to extend the selection (e.g. with a double
233	click) and is either supposed to return false (normal operation), or	535	click) and is either supposed to return false (normal operation), or
234	should extend the selection itelf and return true to suppress the built-in	536	should extend the selection itself and return true to suppress the built-in
235	processing. This can happen multiple times, as long as the callback	537	processing. This can happen multiple times, as long as the callback
236	returns true, it will be called on every further click by the user and is	538	returns true, it will be called on every further click by the user and is
237	supposed to enlarge the selection more and more, if possible.	539	supposed to enlarge the selection more and more, if possible.
238		540
239	See the F<selection> example extension.	541	See the F<selection> example extension.
240		542
241	=item on_view_change $term, $offset	543	=item on_view_change $term, $offset
242		544
243	Called whenever the view offset changes, i..e the user or program	545	Called whenever the view offset changes, i.e. the user or program
244	scrolls. Offset C<0> means display the normal terminal, positive values	546	scrolls. Offset C<0> means display the normal terminal, positive values
245	show this many lines of scrollback.	547	show this many lines of scrollback.
246		548
247	=item on_scroll_back $term, $lines, $saved	549	=item on_scroll_back $term, $lines, $saved
248		550
…		…
252		554
253	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,	555	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
254	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total	556	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
255	number of lines that will be in the scrollback buffer.	557	number of lines that will be in the scrollback buffer.
256		558
		559	=item on_osc_seq $term, $op, $args
		560
		561	Called on every OSC sequence and can be used to suppress it or modify its
		562	behaviour. The default should be to return an empty list. A true value
		563	suppresses execution of the request completely. Make sure you don't get
		564	confused by recursive invocations when you output an osc sequence within
		565	this callback.
		566
		567	C<on_osc_seq_perl> should be used for new behaviour.
		568
257	=item on_osc_seq $term, $string	569	=item on_osc_seq_perl $term, $string
258		570
259	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =	571	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
260	operating system command) is processed. Cursor position and other state	572	operating system command) is processed. Cursor position and other state
261	information is up-to-date when this happens. For interoperability, the	573	information is up-to-date when this happens. For interoperability, the
262	string should start with the extension name and a colon, to distinguish	574	string should start with the extension name and a colon, to distinguish
263	it from commands for other extensions, and this might be enforced in the	575	it from commands for other extensions, and this might be enforced in the
264	future.	576	future.
265		577
266	Be careful not ever to trust (in a security sense) the data you receive,	578	Be careful not ever to trust (in a security sense) the data you receive,
267	as its source can not easily be controleld (e-mail content, messages from	579	as its source can not easily be controlled (e-mail content, messages from
268	other users on the same system etc.).	580	other users on the same system etc.).
269		581
270	=item on_add_lines $term, $string	582	=item on_add_lines $term, $string
271		583
272	Called whenever text is about to be output, with the text as argument. You	584	Called whenever text is about to be output, with the text as argument. You
…		…
303		615
304	=item on_refresh_end $term	616	=item on_refresh_end $term
305		617
306	Called just after the screen gets redrawn. See C<on_refresh_begin>.	618	Called just after the screen gets redrawn. See C<on_refresh_begin>.
307		619
308	=item on_keyboard_command $term, $string	620	=item on_user_command $term, $string
309		621
310	Called whenever the user presses a key combination that has a	622	Called whenever a user-configured event is being activated (e.g. via
311	C<perl:string> action bound to it (see description of the B<keysym>	623	a C<perl:string> action bound to a key, see description of the B<keysym>
312	resource in the @@RXVT_NAME@@(1) manpage).	624	resource in the @@RXVT_NAME@@(1) manpage).
		625
		626	The event is simply the action string. This interface is assumed to change
		627	slightly in the future.
		628
		629	=item on_resize_all_windows $tern, $new_width, $new_height
		630
		631	Called just after the new window size has been calculated, but before
		632	windows are actually being resized or hints are being set. If this hook
		633	returns TRUE, setting of the window hints is being skipped.
		634
		635	=item on_x_event $term, $event
		636
		637	Called on every X event received on the vt window (and possibly other
		638	windows). Should only be used as a last resort. Most event structure
		639	members are not passed.
		640
		641	=item on_root_event $term, $event
		642
		643	Like C<on_x_event>, but is called for events on the root window.
313		644
314	=item on_focus_in $term	645	=item on_focus_in $term
315		646
316	Called whenever the window gets the keyboard focus, before rxvt-unicode	647	Called whenever the window gets the keyboard focus, before rxvt-unicode
317	does focus in processing.	648	does focus in processing.
318		649
319	=item on_focus_out $term	650	=item on_focus_out $term
320		651
321	Called wheneever the window loses keyboard focus, before rxvt-unicode does	652	Called whenever the window loses keyboard focus, before rxvt-unicode does
322	focus out processing.	653	focus out processing.
		654
		655	=item on_configure_notify $term, $event
		656
		657	=item on_property_notify $term, $event
323		658
324	=item on_key_press $term, $event, $keysym, $octets	659	=item on_key_press $term, $event, $keysym, $octets
325		660
326	=item on_key_release $term, $event, $keysym	661	=item on_key_release $term, $event, $keysym
327		662
…		…
337		672
338	Called whenever the corresponding X event is received for the terminal If	673	Called whenever the corresponding X event is received for the terminal If
339	the hook returns true, then the even will be ignored by rxvt-unicode.	674	the hook returns true, then the even will be ignored by rxvt-unicode.
340		675
341	The event is a hash with most values as named by Xlib (see the XEvent	676	The event is a hash with most values as named by Xlib (see the XEvent
342	manpage), with the additional members C<row> and C<col>, which are the row	677	manpage), with the additional members C<row> and C<col>, which are the
343	and column under the mouse cursor.	678	(real, not screen-based) row and column under the mouse cursor.
344		679
345	C<on_key_press> additionally receives the string rxvt-unicode would	680	C<on_key_press> additionally receives the string rxvt-unicode would
346	output, if any, in locale-specific encoding.	681	output, if any, in locale-specific encoding.
347		682
348	subwindow.	683	subwindow.
		684
		685	=item on_client_message $term, $event
		686
		687	=item on_wm_protocols $term, $event
		688
		689	=item on_wm_delete_window $term, $event
		690
		691	Called when various types of ClientMessage events are received (all with
		692	format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
349		693
350	=back	694	=back
351		695
352	=cut	696	=cut
353		697
…		…
359	use Scalar::Util ();	703	use Scalar::Util ();
360	use List::Util ();	704	use List::Util ();
361		705
362	our $VERSION = 1;	706	our $VERSION = 1;
363	our $TERM;	707	our $TERM;
		708	our @TERM_INIT;
		709	our @TERM_EXT;
364	our @HOOKNAME;	710	our @HOOKNAME;
365	our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;	711	our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
366	our %OPTION;	712	our %OPTION;
367		713
368	our $LIBDIR;	714	our $LIBDIR;
369	our $RESNAME;	715	our $RESNAME;
370	our $RESCLASS;	716	our $RESCLASS;
371	our $RXVTNAME;	717	our $RXVTNAME;
372		718
		719	our $NOCHAR = chr 0xffff;
		720
373	=head2 Variables in the C<urxvt> Package	721	=head2 Variables in the C<urxvt> Package
374		722
375	=over 4	723	=over 4
376		724
377	=item $urxvt::LIBDIR	725	=item $urxvt::LIBDIR
…		…
389		737
390	=item $urxvt::TERM	738	=item $urxvt::TERM
391		739
392	The current terminal. This variable stores the current C<urxvt::term>	740	The current terminal. This variable stores the current C<urxvt::term>
393	object, whenever a callback/hook is executing.	741	object, whenever a callback/hook is executing.
		742
		743	=item @urxvt::TERM_INIT
		744
		745	All code references in this array will be called as methods of the next newly
		746	created C<urxvt::term> object (during the C<on_init> phase). The array
		747	gets cleared before the code references that were in it are being executed,
		748	so references can push themselves onto it again if they so desire.
		749
		750	This complements to the perl-eval command line option, but gets executed
		751	first.
		752
		753	=item @urxvt::TERM_EXT
		754
		755	Works similar to C<@TERM_INIT>, but contains perl package/class names, which
		756	get registered as normal extensions after calling the hooks in C<@TERM_INIT>
		757	but before other extensions. Gets cleared just like C<@TERM_INIT>.
394		758
395	=back	759	=back
396		760
397	=head2 Functions in the C<urxvt> Package	761	=head2 Functions in the C<urxvt> Package
398		762
…		…
413	Using this function has the advantage that its output ends up in the	777	Using this function has the advantage that its output ends up in the
414	correct place, e.g. on stderr of the connecting urxvtc client.	778	correct place, e.g. on stderr of the connecting urxvtc client.
415		779
416	Messages have a size limit of 1023 bytes currently.	780	Messages have a size limit of 1023 bytes currently.
417		781
418	=item $is_safe = urxvt::safe	782	=item @terms = urxvt::termlist
419		783
420	Returns true when it is safe to do potentially unsafe things, such as	784	Returns all urxvt::term objects that exist in this process, regardless of
421	evaluating perl code specified by the user. This is true when urxvt was	785	whether they are started, being destroyed etc., so be careful. Only term
422	started setuid or setgid.	786	objects that have perl extensions attached will be returned (because there
		787	is no urxvt::term objet associated with others).
423		788
424	=item $time = urxvt::NOW	789	=item $time = urxvt::NOW
425		790
426	Returns the "current time" (as per the event loop).	791	Returns the "current time" (as per the event loop).
427		792
428	=item urxvt::CurrentTime	793	=item urxvt::CurrentTime
429		794
430	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,	795	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
431	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,	796	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
432	Button4Mask, Button5Mask, AnyModifier	797	Button4Mask, Button5Mask, AnyModifier
		798
		799	=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
		800	ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
		801	PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
		802	Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
		803	KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
		804	ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
		805	FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
		806
		807	=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
		808	EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
		809	GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
		810	UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
		811	ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
		812	CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
		813	SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
433		814
434	Various constants for use in X calls and event processing.	815	Various constants for use in X calls and event processing.
435		816
436	=back	817	=back
437		818
…		…
470		851
471	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour	852	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
472		853
473	=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour	854	=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
474		855
		856	=item $rend = urxvt::SET_COLOR $rend, $new_fg, $new_bg
		857
475	Replace the foreground/background colour in the rendition mask with the	858	Replace the foreground/background colour in the rendition mask with the
476	specified one.	859	specified one.
477		860
478	=item $value = urxvt::GET_CUSTOM $rend	861	=item $value = urxvt::GET_CUSTOM $rend
479		862
…		…
488	=back	871	=back
489		872
490	=cut	873	=cut
491		874
492	BEGIN {	875	BEGIN {
493	urxvt->bootstrap;
494
495	# overwrite perl's warn	876	# overwrite perl's warn
496	*CORE::GLOBAL::warn = sub {	877	*CORE::GLOBAL::warn = sub {
497	my $msg = join "", @_;	878	my $msg = join "", @_;
498	$msg .= "\n"	879	$msg .= "\n"
499	unless $msg =~ /\n$/;	880	unless $msg =~ /\n$/;
500	urxvt::warn ($msg);	881	urxvt::warn ($msg);
501	};	882	};
502
503	# %ENV is the original startup environment
504	delete $ENV{IFS};
505	delete $ENV{CDPATH};
506	delete $ENV{BASH_ENV};
507	$ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
508	}	883	}
509		884
510	my @hook_count;	885	no warnings 'utf8';
		886
511	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};	887	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
512		888
513	sub verbose {	889	sub verbose {
514	my ($level, $msg) = @_;	890	my ($level, $msg) = @_;
515	warn "$msg\n" if $level <= $verbosity;	891	warn "$msg\n" if $level <= $verbosity;
516	}	892	}
517		893
518	my $extension_pkg = "extension0000";
519	my %extension_pkg;	894	my %extension_pkg;
520		895
521	# load a single script into its own package, once only	896	# load a single script into its own package, once only
522	sub extension_package($) {	897	sub extension_package($) {
523	my ($path) = @_;	898	my ($path) = @_;
524		899
525	$extension_pkg{$path} ||= do {	900	$extension_pkg{$path} ||= do {
526	my $pkg = "urxvt::" . ($extension_pkg++);	901	$path =~ /([^\/\\]+)$/;
		902	my $pkg = $1;
		903	$pkg =~ s/[^[:word:]]/_/g;
		904	$pkg = "urxvt::ext::$pkg";
527		905
528	verbose 3, "loading extension '$path' into package '$pkg'";	906	verbose 3, "loading extension '$path' into package '$pkg'";
529		907
530	open my $fh, "<:raw", $path	908	open my $fh, "<:raw", $path
531	or die "$path: $!";	909	or die "$path: $!";
532		910
533	my $source = untaint	911	my $source =
534	"package $pkg; use strict; use utf8;\n"	912	"package $pkg; use strict; use utf8; no warnings 'utf8';\n"
535	. "use base urxvt::term::extension::;\n"
536	. "#line 1 \"$path\"\n{\n"	913	. "#line 1 \"$path\"\n{\n"
537	. (do { local $/; <$fh> })	914	. (do { local $/; <$fh> })
538	. "\n};\n1";	915	. "\n};\n1";
539		916
540	eval $source	917	eval $source
…		…
551	local $TERM = shift;	928	local $TERM = shift;
552	my $htype = shift;	929	my $htype = shift;
553		930
554	if ($htype == 0) { # INIT	931	if ($htype == 0) { # INIT
555	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");	932	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
556		933
557	my %ext_arg;	934	my %ext_arg;
558		935
		936	{
		937	my @init = @TERM_INIT;
		938	@TERM_INIT = ();
		939	$_->($TERM) for @init;
		940	my @pkg = @TERM_EXT;
		941	@TERM_EXT = ();
		942	$TERM->register_package ($_) for @pkg;
		943	}
		944
559	for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {	945	for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
560	if ($_ eq "default") {	946	if ($_ eq "default") {
561	$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback);	947	$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
562	} elsif (/^-(.*)$/) {	948	} elsif (/^-(.*)$/) {
563	delete $ext_arg{$1};	949	delete $ext_arg{$1};
564	} elsif (/^([^<]+)<(.*)>$/) {	950	} elsif (/^([^<]+)<(.*)>$/) {
565	push @{ $ext_arg{$1} }, $2;	951	push @{ $ext_arg{$1} }, $2;
566	} else {	952	} else {
567	$ext_arg{$_} ||= [];	953	$ext_arg{$_} ||= [];
568	}	954	}
569	}	955	}
570		956
571	while (my ($ext, $argv) = each %ext_arg) {	957	for my $ext (sort keys %ext_arg) {
572	my @files = grep -f $_, map "$_/$ext", @dirs;	958	my @files = grep -f $_, map "$_/$ext", @dirs;
573		959
574	if (@files) {	960	if (@files) {
575	$TERM->register_package (extension_package $files[0], $argv);	961	$TERM->register_package (extension_package $files[0], $ext_arg{$ext});
576	} else {	962	} else {
577	warn "perl extension '$ext' not found in perl library search path\n";	963	warn "perl extension '$ext' not found in perl library search path\n";
578	}	964	}
579	}	965	}
580		966
…		…
586		972
587	if (my $cb = $TERM->{_hook}[$htype]) {	973	if (my $cb = $TERM->{_hook}[$htype]) {
588	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"	974	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
589	if $verbosity >= 10;	975	if $verbosity >= 10;
590		976
591	keys %$cb;	977	for my $pkg (keys %$cb) {
592
593	while (my ($pkg, $cb) = each %$cb) {
594	$retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) }	978	my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg}, @_) };
595	and last;	979	$retval ||= $retval_;
596		980
597	if ($@) {	981	if ($@) {
598	$TERM->ungrab; # better to lose the grab than the session	982	$TERM->ungrab; # better to lose the grab than the session
599	warn $@;	983	warn $@;
600	}	984	}
…		…
603	verbose 11, "$HOOKNAME[$htype] returning <$retval>"	987	verbose 11, "$HOOKNAME[$htype] returning <$retval>"
604	if $verbosity >= 11;	988	if $verbosity >= 11;
605	}	989	}
606		990
607	if ($htype == 1) { # DESTROY	991	if ($htype == 1) { # DESTROY
608	if (my $hook = delete $TERM->{_hook}) {
609	for my $htype (0..$#$hook) {
610	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
611	or set_should_invoke $htype, 0;
612	}
613	}
614
615	# clear package objects	992	# clear package objects
616	%$_ = () for values %{ $TERM->{_pkg} };	993	%$_ = () for values %{ $TERM->{_pkg} };
617		994
618	# clear package	995	# clear package
619	%$TERM = ();	996	%$TERM = ();
620	}	997	}
621		998
622	$retval	999	$retval
623	}	1000	}
624		1001
625	sub exec_async(@) {	1002	sub SET_COLOR($$$) {
626	my $pid = fork;	1003	SET_BGCOLOR (SET_FGCOLOR ($_[0], $_[1]), $_[2])
		1004	}
627		1005
628	return	1006	sub rend2mask {
629	if !defined $pid or $pid;	1007	no strict 'refs';
630		1008	my ($str, $mask) = (@_, 0);
631	%ENV = %{ $TERM->env };	1009	my %color = ( fg => undef, bg => undef );
632		1010	my @failed;
633	exec @_;	1011	for my $spec ( split /\s+/, $str ) {
634	_exit 255;	1012	if ( $spec =~ /^([fb]g)[_:-]?(\d+)/i ) {
		1013	$color{lc($1)} = $2;
		1014	} else {
		1015	my $neg = $spec =~ s/^[-^]//;
		1016	unless ( exists &{"RS_$spec"} ) {
		1017	push @failed, $spec;
		1018	next;
		1019	}
		1020	my $cur = &{"RS_$spec"};
		1021	if ( $neg ) {
		1022	$mask &= ~$cur;
		1023	} else {
		1024	$mask |= $cur;
		1025	}
		1026	}
		1027	}
		1028	($mask, @color{qw(fg bg)}, \@failed)
635	}	1029	}
636		1030
637	# urxvt::term::extension	1031	# urxvt::term::extension
638		1032
639	package urxvt::term::extension;	1033	package urxvt::term::extension;
…		…
645	while (my ($name, $cb) = each %hook) {	1039	while (my ($name, $cb) = each %hook) {
646	my $htype = $HOOKTYPE{uc $name};	1040	my $htype = $HOOKTYPE{uc $name};
647	defined $htype	1041	defined $htype
648	or Carp::croak "unsupported hook type '$name'";	1042	or Carp::croak "unsupported hook type '$name'";
649		1043
		1044	$self->set_should_invoke ($htype, +1)
650	unless (exists $self->{term}{_hook}[$htype]{$pkg}) {	1045	unless exists $self->{term}{_hook}[$htype]{$pkg};
651	$hook_count[$htype]++
652	or urxvt::set_should_invoke $htype, 1;
653	}
654		1046
655	$self->{term}{_hook}[$htype]{$pkg} = $cb;	1047	$self->{term}{_hook}[$htype]{$pkg} = $cb;
656	}	1048	}
657	}	1049	}
658		1050
…		…
663	for my $name (@hook) {	1055	for my $name (@hook) {
664	my $htype = $HOOKTYPE{uc $name};	1056	my $htype = $HOOKTYPE{uc $name};
665	defined $htype	1057	defined $htype
666	or Carp::croak "unsupported hook type '$name'";	1058	or Carp::croak "unsupported hook type '$name'";
667		1059
		1060	$self->set_should_invoke ($htype, -1)
668	if (delete $self->{term}{_hook}[$htype]{$pkg}) {	1061	if delete $self->{term}{_hook}[$htype]{$pkg};
669	--$hook_count[$htype]
670	or urxvt::set_should_invoke $htype, 0;
671	}
672	}	1062	}
673	}	1063	}
674		1064
675	our $AUTOLOAD;	1065	our $AUTOLOAD;
676		1066
…		…
756	sub DESTROY {	1146	sub DESTROY {
757	$_[0][1]->stop;	1147	$_[0][1]->stop;
758	}	1148	}
759		1149
760	sub condvar {	1150	sub condvar {
761	bless \my $flag, urxvt::anyevent::condvar::	1151	bless \my $flag, urxvt::anyevent::
762	}	1152	}
763		1153
764	sub urxvt::anyevent::condvar::broadcast {	1154	sub broadcast {
765	${$_[0]}++;	1155	${$_[0]}++;
766	}	1156	}
767		1157
768	sub urxvt::anyevent::condvar::wait {	1158	sub wait {
769	unless (${$_[0]}) {	1159	unless (${$_[0]}) {
770	Carp::croak "AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API";	1160	Carp::croak "AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API";
771	}	1161	}
		1162	}
		1163
		1164	sub one_event {
		1165	Carp::croak "AnyEvent->one_event blocking wait unsupported in urxvt, use a non-blocking API";
772	}	1166	}
773		1167
774	package urxvt::term;	1168	package urxvt::term;
775		1169
776	=head2 The C<urxvt::term> Class	1170	=head2 The C<urxvt::term> Class
…		…
781		1175
782	# find on_xxx subs in the package and register them	1176	# find on_xxx subs in the package and register them
783	# as hooks	1177	# as hooks
784	sub register_package {	1178	sub register_package {
785	my ($self, $pkg, $argv) = @_;	1179	my ($self, $pkg, $argv) = @_;
		1180
		1181	no strict 'refs';
		1182
		1183	urxvt::verbose 6, "register package $pkg to $self";
		1184
		1185	@{"$pkg\::ISA"} = urxvt::term::extension::;
786		1186
787	my $proxy = bless {	1187	my $proxy = bless {
788	_pkg => $pkg,	1188	_pkg => $pkg,
789	argv => $argv,	1189	argv => $argv,
790	}, $pkg;	1190	}, $pkg;
…		…
806	hash which defines the environment of the new terminal.	1206	hash which defines the environment of the new terminal.
807		1207
808	Croaks (and probably outputs an error message) if the new instance	1208	Croaks (and probably outputs an error message) if the new instance
809	couldn't be created. Returns C<undef> if the new instance didn't	1209	couldn't be created. Returns C<undef> if the new instance didn't
810	initialise perl, and the terminal object otherwise. The C<init> and	1210	initialise perl, and the terminal object otherwise. The C<init> and
811	C<start> hooks will be called during this call.	1211	C<start> hooks will be called before this call returns, and are free to
		1212	refer to global data (which is race free).
812		1213
813	=cut	1214	=cut
814		1215
815	sub new {	1216	sub new {
816	my ($class, $env, @args) = @_;	1217	my ($class, $env, @args) = @_;
817		1218
		1219	$env or Carp::croak "environment hash missing in call to urxvt::term->new";
		1220	@args or Carp::croak "name argument missing in call to urxvt::term->new";
		1221
818	_new ([ map "$_=$env->{$_}", keys %$env ], @args);	1222	_new ([ map "$_=$env->{$_}", keys %$env ], \@args);
819	}	1223	}
820		1224
821	=item $term->destroy	1225	=item $term->destroy
822		1226
823	Destroy the terminal object (close the window, free resources	1227	Destroy the terminal object (close the window, free resources
824	etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event	1228	etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
825	watchers (timers, io watchers) are still active.	1229	watchers (timers, io watchers) are still active.
826		1230
		1231	=item $term->exec_async ($cmd[, @args])
		1232
		1233	Works like the combination of the C<fork>/C<exec> builtins, which executes
		1234	("starts") programs in the background. This function takes care of setting
		1235	the user environment before exec'ing the command (e.g. C<PATH>) and should
		1236	be preferred over explicit calls to C<exec> or C<system>.
		1237
		1238	Returns the pid of the subprocess or C<undef> on error.
		1239
		1240	=cut
		1241
		1242	sub exec_async {
		1243	my $self = shift;
		1244
		1245	my $pid = fork;
		1246
		1247	return $pid
		1248	if !defined $pid or $pid;
		1249
		1250	%ENV = %{ $self->env };
		1251
		1252	exec @_;
		1253	urxvt::_exit 255;
		1254	}
		1255
827	=item $isset = $term->option ($optval[, $set])	1256	=item $isset = $term->option ($optval[, $set])
828		1257
829	Returns true if the option specified by C<$optval> is enabled, and	1258	Returns true if the option specified by C<$optval> is enabled, and
830	optionally change it. All option values are stored by name in the hash	1259	optionally change it. All option values are stored by name in the hash
831	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.	1260	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
832		1261
833	Here is a a likely non-exhaustive list of option names, please see the	1262	Here is a likely non-exhaustive list of option names, please see the
834	source file F</src/optinc.h> to see the actual list:	1263	source file F</src/optinc.h> to see the actual list:
835		1264
836	borderLess console cursorBlink cursorUnderline hold iconic insecure	1265	borderLess console cursorBlink cursorUnderline hold iconic insecure
837	intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage	1266	intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
838	pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating	1267	override-redirect pastableTabs pointerBlank reverseVideo scrollBar
839	scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer	1268	scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
840	secondaryScreen secondaryScroll skipBuiltinGlyphs transparent	1269	scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
841	tripleclickwords utmpInhibit visualBell	1270	transparent tripleclickwords utmpInhibit visualBell
842		1271
843	=item $value = $term->resource ($name[, $newval])	1272	=item $value = $term->resource ($name[, $newval])
844		1273
845	Returns the current resource value associated with a given name and	1274	Returns the current resource value associated with a given name and
846	optionally sets a new value. Setting values is most useful in the C<init>	1275	optionally sets a new value. Setting values is most useful in the C<init>
…		…
855	likely change).	1284	likely change).
856		1285
857	Please note that resource strings will currently only be freed when the	1286	Please note that resource strings will currently only be freed when the
858	terminal is destroyed, so changing options frequently will eat memory.	1287	terminal is destroyed, so changing options frequently will eat memory.
859		1288
860	Here is a a likely non-exhaustive list of resource names, not all of which	1289	Here is a likely non-exhaustive list of resource names, not all of which
861	are supported in every build, please see the source file F</src/rsinc.h>	1290	are supported in every build, please see the source file F</src/rsinc.h>
862	to see the actual list:	1291	to see the actual list:
863		1292
864	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont	1293	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
865	borderLess color cursorBlink cursorUnderline cutchars delete_key	1294	borderLess color cursorBlink cursorUnderline cutchars delete_key
866	display_name embed ext_bwidth fade font geometry hold iconName	1295	display_name embed ext_bwidth fade font geometry hold iconName
867	imFont imLocale inputMethod insecure int_bwidth intensityStyles	1296	imFont imLocale inputMethod insecure int_bwidth intensityStyles
868	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier	1297	italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
869	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2	1298	mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
870	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd	1299	perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
871	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating	1300	preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
872	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput	1301	scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
873	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle	1302	scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
874	shade term_name title transparent transparent_all tripleclickwords	1303	secondaryScreen secondaryScroll selectstyle shade term_name title
875	utmpInhibit visualBell	1304	transient_for transparent transparent_all tripleclickwords utmpInhibit
		1305	visualBell
876		1306
877	=cut	1307	=cut
878		1308
879	sub resource($$;$) {	1309	sub resource($$;$) {
880	my ($self, $name) = (shift, shift);	1310	my ($self, $name) = (shift, shift);
…		…
915	=item ($row, $col) = $term->selection_end ([$row, $col])	1345	=item ($row, $col) = $term->selection_end ([$row, $col])
916		1346
917	Return the current values of the selection mark, begin or end positions,	1347	Return the current values of the selection mark, begin or end positions,
918	and optionally set them to new values.	1348	and optionally set them to new values.
919		1349
		1350	=item $term->selection_make ($eventtime[, $rectangular])
		1351
		1352	Tries to make a selection as set by C<selection_beg> and
		1353	C<selection_end>. If C<$rectangular> is true (default: false), a
		1354	rectangular selection will be made. This is the prefered function to make
		1355	a selection.
		1356
920	=item $success = $term->selection_grab ($eventtime)	1357	=item $success = $term->selection_grab ($eventtime)
921		1358
922	Try to request the primary selection from the server (for example, as set	1359	Try to request the primary selection text from the server (for example, as
923	by the next method).	1360	set by the next method). No visual feedback will be given. This function
		1361	is mostly useful from within C<on_sel_grab> hooks.
924		1362
925	=item $oldtext = $term->selection ([$newtext])	1363	=item $oldtext = $term->selection ([$newtext])
926		1364
927	Return the current selection text and optionally replace it by C<$newtext>.	1365	Return the current selection text and optionally replace it by C<$newtext>.
928		1366
…		…
1021	Convert the given locale-encoded octets into a perl string.	1459	Convert the given locale-encoded octets into a perl string.
1022		1460
1023	=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])	1461	=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
1024		1462
1025	XORs the rendition values in the given span with the provided value	1463	XORs the rendition values in the given span with the provided value
1026	(default: C<RS_RVid>). Useful in refresh hooks to provide effects similar	1464	(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
1027	to the selection.	1465	refresh hooks to provide effects similar to the selection.
1028		1466
1029	=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])	1467	=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
1030		1468
1031	Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing	1469	Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
1032	whitespace will additionally be xored with the C<$rstyle2>, which defaults	1470	whitespace will additionally be xored with the C<$rstyle2>, which defaults
1033	to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines	1471	to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
1034	it instead.	1472	it instead. Both styles I<MUST NOT> contain font styles.
1035		1473
1036	=item $term->scr_bell	1474	=item $term->scr_bell
1037		1475
1038	Ring the bell!	1476	Ring the bell!
1039		1477
…		…
1046		1484
1047	Normally its not a good idea to use this function, as programs might be	1485	Normally its not a good idea to use this function, as programs might be
1048	confused by changes in cursor position or scrolling. Its useful inside a	1486	confused by changes in cursor position or scrolling. Its useful inside a
1049	C<on_add_lines> hook, though.	1487	C<on_add_lines> hook, though.
1050		1488
		1489	=item $term->scr_change_screen ($screen)
		1490
		1491	Switch to given screen - 0 primary, 1 secondary.
		1492
1051	=item $term->cmd_parse ($octets)	1493	=item $term->cmd_parse ($octets)
1052		1494
1053	Similar to C<scr_add_lines>, but the argument must be in the	1495	Similar to C<scr_add_lines>, but the argument must be in the
1054	locale-specific encoding of the terminal and can contain command sequences	1496	locale-specific encoding of the terminal and can contain command sequences
1055	(escape codes) that will be interpreted.	1497	(escape codes) that will be interpreted.
…		…
1065	Replaces the event mask of the pty watcher by the given event mask. Can	1507	Replaces the event mask of the pty watcher by the given event mask. Can
1066	be used to suppress input and output handling to the pty/tty. See the	1508	be used to suppress input and output handling to the pty/tty. See the
1067	description of C<< urxvt::timer->events >>. Make sure to always restore	1509	description of C<< urxvt::timer->events >>. Make sure to always restore
1068	the previous value.	1510	the previous value.
1069		1511
		1512	=item $fd = $term->pty_fd
		1513
		1514	Returns the master file descriptor for the pty in use, or C<-1> if no pty
		1515	is used.
		1516
1070	=item $windowid = $term->parent	1517	=item $windowid = $term->parent
1071		1518
1072	Return the window id of the toplevel window.	1519	Return the window id of the toplevel window.
1073		1520
1074	=item $windowid = $term->vt	1521	=item $windowid = $term->vt
1075		1522
1076	Return the window id of the terminal window.	1523	Return the window id of the terminal window.
1077		1524
		1525	=item $term->vt_emask_add ($x_event_mask)
		1526
		1527	Adds the specified events to the vt event mask. Useful e.g. when you want
		1528	to receive pointer events all the times:
		1529
		1530	$term->vt_emask_add (urxvt::PointerMotionMask);
		1531
		1532	=item $term->focus_in
		1533
		1534	=item $term->focus_out
		1535
		1536	=item $term->key_press ($state, $keycode[, $time])
		1537
		1538	=item $term->key_release ($state, $keycode[, $time])
		1539
		1540	Deliver various fake events to to terminal.
		1541
1078	=item $window_width = $term->width	1542	=item $window_width = $term->width
1079		1543
1080	=item $window_height = $term->height	1544	=item $window_height = $term->height
1081		1545
1082	=item $font_width = $term->fwidth	1546	=item $font_width = $term->fwidth
…		…
1095		1559
1096	=item $max_scrollback = $term->saveLines	1560	=item $max_scrollback = $term->saveLines
1097		1561
1098	=item $nrow_plus_saveLines = $term->total_rows	1562	=item $nrow_plus_saveLines = $term->total_rows
1099		1563
1100	=item $lines_in_scrollback = $term->nsaved	1564	=item $topmost_scrollback_row = $term->top_row
1101		1565
1102	Return various integers describing terminal characteristics.	1566	Return various integers describing terminal characteristics.
1103		1567
1104	=item $x_display = $term->display_id	1568	=item $x_display = $term->display_id
1105		1569
…		…
1112	=item $env = $term->env	1576	=item $env = $term->env
1113		1577
1114	Returns a copy of the environment in effect for the terminal as a hashref	1578	Returns a copy of the environment in effect for the terminal as a hashref
1115	similar to C<\%ENV>.	1579	similar to C<\%ENV>.
1116		1580
		1581	=item @envv = $term->envv
		1582
		1583	Returns the environment as array of strings of the form C<VAR=VALUE>.
		1584
		1585	=item @argv = $term->argv
		1586
		1587	Return the argument vector as this terminal, similar to @ARGV, but
		1588	includes the program name as first element.
		1589
1117	=cut	1590	=cut
1118		1591
1119	sub env {	1592	sub env {
1120	if (my $env = $_[0]->_env) {
1121	+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), @$env }	1593	+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), $_[0]->envv }
1122	} else {
1123	+{ %ENV }
1124	}
1125	}	1594	}
1126		1595
1127	=item $modifiermask = $term->ModLevel3Mask	1596	=item $modifiermask = $term->ModLevel3Mask
1128		1597
1129	=item $modifiermask = $term->ModMetaMask	1598	=item $modifiermask = $term->ModMetaMask
…		…
1131	=item $modifiermask = $term->ModNumLockMask	1600	=item $modifiermask = $term->ModNumLockMask
1132		1601
1133	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often	1602	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1134	AltGr), the meta key (often Alt) and the num lock key, if applicable.	1603	AltGr), the meta key (often Alt) and the num lock key, if applicable.
1135		1604
		1605	=item $screen = $term->current_screen
		1606
		1607	Returns the currently displayed screen (0 primary, 1 secondary).
		1608
		1609	=item $cursor_is_hidden = $term->hidden_cursor
		1610
		1611	Returns whether the cursor is currently hidden or not.
		1612
1136	=item $view_start = $term->view_start ([$newvalue])	1613	=item $view_start = $term->view_start ([$newvalue])
1137		1614
1138	Returns the negative row number of the topmost line. Minimum value is	1615	Returns the row number of the topmost displayed line. Maximum value is
1139	C<0>, which displays the normal terminal contents. Larger values scroll	1616	C<0>, which displays the normal terminal contents. Lower values scroll
1140	this many lines into the scrollback buffer.	1617	this many lines into the scrollback buffer.
1141		1618
1142	=item $term->want_refresh	1619	=item $term->want_refresh
1143		1620
1144	Requests a screen refresh. At the next opportunity, rxvt-unicode will	1621	Requests a screen refresh. At the next opportunity, rxvt-unicode will
…		…
1159	line, starting at column C<$start_col> (default C<0>), which is useful	1636	line, starting at column C<$start_col> (default C<0>), which is useful
1160	to replace only parts of a line. The font index in the rendition will	1637	to replace only parts of a line. The font index in the rendition will
1161	automatically be updated.	1638	automatically be updated.
1162		1639
1163	C<$text> is in a special encoding: tabs and wide characters that use more	1640	C<$text> is in a special encoding: tabs and wide characters that use more
1164	than one cell when displayed are padded with urxvt::NOCHAR characters	1641	than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
1165	(C<chr 65535>). Characters with combining characters and other characters	1642	characters. Characters with combining characters and other characters that
1166	that do not fit into the normal tetx encoding will be replaced with	1643	do not fit into the normal tetx encoding will be replaced with characters
1167	characters in the private use area.	1644	in the private use area.
1168		1645
1169	You have to obey this encoding when changing text. The advantage is	1646	You have to obey this encoding when changing text. The advantage is
1170	that C<substr> and similar functions work on screen cells and not on	1647	that C<substr> and similar functions work on screen cells and not on
1171	characters.	1648	characters.
1172		1649
…		…
1316	where one character corresponds to one screen cell. See	1793	where one character corresponds to one screen cell. See
1317	C<< $term->ROW_t >> for details.	1794	C<< $term->ROW_t >> for details.
1318		1795
1319	=item $string = $term->special_decode $text	1796	=item $string = $term->special_decode $text
1320		1797
1321	Converts rxvt-unicodes text reprsentation into a perl string. See	1798	Converts rxvt-unicodes text representation into a perl string. See
1322	C<< $term->ROW_t >> for details.	1799	C<< $term->ROW_t >> for details.
1323		1800
1324	=item $success = $term->grab_button ($button, $modifiermask)	1801	=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
1325		1802
		1803	=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
		1804
1326	Registers a synchronous button grab. See the XGrabButton manpage.	1805	Register/unregister a synchronous button grab. See the XGrabButton
		1806	manpage.
1327		1807
1328	=item $success = $term->grab ($eventtime[, $sync])	1808	=item $success = $term->grab ($eventtime[, $sync])
1329		1809
1330	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or	1810	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
1331	synchronous (C<$sync> is true). Also remembers the grab timestampe.	1811	synchronous (C<$sync> is true). Also remembers the grab timestamp.
1332		1812
1333	=item $term->allow_events_async	1813	=item $term->allow_events_async
1334		1814
1335	Calls XAllowEvents with AsyncBoth for the most recent grab.	1815	Calls XAllowEvents with AsyncBoth for the most recent grab.
1336		1816
…		…
1346	=item $term->ungrab	1826	=item $term->ungrab
1347		1827
1348	Calls XUngrab for the most recent grab. Is called automatically on	1828	Calls XUngrab for the most recent grab. Is called automatically on
1349	evaluation errors, as it is better to lose the grab in the error case as	1829	evaluation errors, as it is better to lose the grab in the error case as
1350	the session.	1830	the session.
		1831
		1832	=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
		1833
		1834	=item $atom_name = $term->XGetAtomName ($atom)
		1835
		1836	=item @atoms = $term->XListProperties ($window)
		1837
		1838	=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
		1839
		1840	=item $term->XChangeWindowProperty ($window, $property, $type, $format, $octets)
		1841
		1842	=item $term->XDeleteProperty ($window, $property)
		1843
		1844	=item $window = $term->DefaultRootWindow
		1845
		1846	=item $term->XReparentWindow ($window, $parent, [$x, $y])
		1847
		1848	=item $term->XMapWindow ($window)
		1849
		1850	=item $term->XUnmapWindow ($window)
		1851
		1852	=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
		1853
		1854	=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
		1855
		1856	=item $term->XChangeInput ($window, $add_events[, $del_events])
		1857
		1858	Various X or X-related functions. The C<$term> object only serves as
		1859	the source of the display, otherwise those functions map more-or-less
		1860	directory onto the X functions of the same name.
1351		1861
1352	=back	1862	=back
1353		1863
1354	=cut	1864	=cut
1355		1865
…		…
1419	my ($self, $text, $cb) = @_;	1929	my ($self, $text, $cb) = @_;
1420		1930
1421	$self->add_item ({ type => "button", text => $text, activate => $cb});	1931	$self->add_item ({ type => "button", text => $text, activate => $cb});
1422	}	1932	}
1423		1933
1424	=item $popup->add_toggle ($text, $cb, $initial_value)	1934	=item $popup->add_toggle ($text, $initial_value, $cb)
1425		1935
1426	Adds a toggle/checkbox item to the popup. Teh callback gets called	1936	Adds a toggle/checkbox item to the popup. The callback gets called
1427	whenever it gets toggled, with a boolean indicating its value as its first	1937	whenever it gets toggled, with a boolean indicating its new value as its
1428	argument.	1938	first argument.
1429		1939
1430	=cut	1940	=cut
1431		1941
1432	sub add_toggle {	1942	sub add_toggle {
1433	my ($self, $text, $cb, $value) = @_;	1943	my ($self, $text, $value, $cb) = @_;
1434		1944
1435	my $item; $item = {	1945	my $item; $item = {
1436	type => "button",	1946	type => "button",
1437	text => " $text",	1947	text => " $text",
1438	value => $value,	1948	value => $value,
…		…
1457	my $env = $self->{term}->env;	1967	my $env = $self->{term}->env;
1458	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.	1968	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1459	delete $env->{LC_ALL};	1969	delete $env->{LC_ALL};
1460	$env->{LC_CTYPE} = $self->{term}->locale;	1970	$env->{LC_CTYPE} = $self->{term}->locale;
1461		1971
1462	urxvt::term->new ($env, $self->{term}->resource ("name"),	1972	urxvt::term->new ($env, "popup",
1463	"--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0,	1973	"--perl-lib" => "", "--perl-ext-common" => "",
		1974	"-pty-fd" => -1, "-sl" => 0,
		1975	"-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1464	"--transient-for" => $self->{term}->parent,	1976	"--transient-for" => $self->{term}->parent,
1465	"-display" => $self->{term}->display_id,	1977	"-display" => $self->{term}->display_id,
1466	"-pe" => "urxvt-popup")	1978	"-pe" => "urxvt-popup")
1467	or die "unable to create popup window\n";	1979	or die "unable to create popup window\n";
1468	}	1980	}
…		…
1473	delete $self->{term}{_destroy}{$self};	1985	delete $self->{term}{_destroy}{$self};
1474	$self->{term}->ungrab;	1986	$self->{term}->ungrab;
1475	}	1987	}
1476		1988
1477	=back	1989	=back
		1990
		1991	=cut
		1992
		1993	package urxvt::watcher;
1478		1994
1479	=head2 The C<urxvt::timer> Class	1995	=head2 The C<urxvt::timer> Class
1480		1996
1481	This class implements timer watchers/events. Time is represented as a	1997	This class implements timer watchers/events. Time is represented as a
1482	fractional number of seconds since the epoch. Example:	1998	fractional number of seconds since the epoch. Example:
…		…
1486	->new	2002	->new
1487	->interval (1)	2003	->interval (1)
1488	->cb (sub {	2004	->cb (sub {
1489	$term->{overlay}->set (0, 0,	2005	$term->{overlay}->set (0, 0,
1490	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);	2006	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
1491	});	2007	});
1492		2008
1493	=over 4	2009	=over 4
1494		2010
1495	=item $timer = new urxvt::timer	2011	=item $timer = new urxvt::timer
1496		2012
…		…
1520	Start the timer.	2036	Start the timer.
1521		2037
1522	=item $timer = $timer->start ($tstamp)	2038	=item $timer = $timer->start ($tstamp)
1523		2039
1524	Set the event trigger time to C<$tstamp> and start the timer.	2040	Set the event trigger time to C<$tstamp> and start the timer.
		2041
		2042	=item $timer = $timer->after ($delay)
		2043
		2044	Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1525		2045
1526	=item $timer = $timer->stop	2046	=item $timer = $timer->stop
1527		2047
1528	Stop the timer.	2048	Stop the timer.
1529		2049
…		…
1558	Set the callback to be called when io events are triggered. C<$reventmask>	2078	Set the callback to be called when io events are triggered. C<$reventmask>
1559	is a bitset as described in the C<events> method.	2079	is a bitset as described in the C<events> method.
1560		2080
1561	=item $iow = $iow->fd ($fd)	2081	=item $iow = $iow->fd ($fd)
1562		2082
1563	Set the filedescriptor (not handle) to watch.	2083	Set the file descriptor (not handle) to watch.
1564		2084
1565	=item $iow = $iow->events ($eventmask)	2085	=item $iow = $iow->events ($eventmask)
1566		2086
1567	Set the event mask to watch. The only allowed values are	2087	Set the event mask to watch. The only allowed values are
1568	C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed	2088	C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed
…		…
1572		2092
1573	Start watching for requested events on the given handle.	2093	Start watching for requested events on the given handle.
1574		2094
1575	=item $iow = $iow->stop	2095	=item $iow = $iow->stop
1576		2096
1577	Stop watching for events on the given filehandle.	2097	Stop watching for events on the given file handle.
		2098
		2099	=back
		2100
		2101	=head2 The C<urxvt::iw> Class
		2102
		2103	This class implements idle watchers, that get called automatically when
		2104	the process is idle. They should return as fast as possible, after doing
		2105	some useful work.
		2106
		2107	=over 4
		2108
		2109	=item $iw = new urxvt::iw
		2110
		2111	Create a new idle watcher object in stopped state.
		2112
		2113	=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
		2114
		2115	Set the callback to be called when the watcher triggers.
		2116
		2117	=item $timer = $timer->start
		2118
		2119	Start the watcher.
		2120
		2121	=item $timer = $timer->stop
		2122
		2123	Stop the watcher.
		2124
		2125	=back
		2126
		2127	=head2 The C<urxvt::pw> Class
		2128
		2129	This class implements process watchers. They create an event whenever a
		2130	process exits, after which they stop automatically.
		2131
		2132	my $pid = fork;
		2133	...
		2134	$term->{pw} = urxvt::pw
		2135	->new
		2136	->start ($pid)
		2137	->cb (sub {
		2138	my ($pw, $exit_status) = @_;
		2139	...
		2140	});
		2141
		2142	=over 4
		2143
		2144	=item $pw = new urxvt::pw
		2145
		2146	Create a new process watcher in stopped state.
		2147
		2148	=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
		2149
		2150	Set the callback to be called when the timer triggers.
		2151
		2152	=item $pw = $timer->start ($pid)
		2153
		2154	Tells the watcher to start watching for process C<$pid>.
		2155
		2156	=item $pw = $pw->stop
		2157
		2158	Stop the watcher.
1578		2159
1579	=back	2160	=back
1580		2161
1581	=head1 ENVIRONMENT	2162	=head1 ENVIRONMENT
1582		2163
…		…
1591		2172
1592	=item >= 3 - script loading and management	2173	=item >= 3 - script loading and management
1593		2174
1594	=item >=10 - all called hooks	2175	=item >=10 - all called hooks
1595		2176
1596	=item >=11 - hook reutrn values	2177	=item >=11 - hook return values
1597		2178
1598	=back	2179	=back
1599		2180
1600	=head1 AUTHOR	2181	=head1 AUTHOR
1601		2182
…		…
1603	http://software.schmorp.de/pkg/rxvt-unicode	2184	http://software.schmorp.de/pkg/rxvt-unicode
1604		2185
1605	=cut	2186	=cut
1606		2187
1607	1	2188	1
		2189
		2190	# vim: sw=3:

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