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Revision 1.27 by root, Tue Jan 3 23:41:37 2006 UTC vs.
Revision 1.205 by root, Tue Jun 5 19:32:29 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, scripts specified via the	22	Every time a terminal object gets created, extension scripts specified via
23	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	=head2 Prepackaged Extensions	31	You can disable the embedded perl interpreter by setting both "perl-ext"
		32	and "perl-ext-common" resources to the empty string.
32		33
		34	=head1 PREPACKAGED EXTENSIONS
		35
33	This section describes the extensiosn delivered with this version. 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,selection-autotransform
		46
40	=over 4	47	=over 4
41		48
42	=item selection	49	=item selection (enabled by default)
43		50
44	Intelligent selection. This extension tries to be more intelligent when	51	(More) intelligent selection. This extension tries to be more intelligent
45	the user extends selections (double-click). Right now, it tries to select	52	when the user extends selections (double-click and further clicks). Right
46	urls and complete shell-quoted arguments, which is very convenient, too,	53	now, it tries to select words, urls and complete shell-quoted
47	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
49	It also offers the following bindable event:	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
		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
…		…
56		92
57	URxvt.keysym.C-M-r: perl:selection:rot13	93	URxvt.keysym.C-M-r: perl:selection:rot13
58		94
59	=back	95	=back
60		96
		97	=item option-popup (enabled by default)
		98
		99	Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at
		100	runtime.
		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
		119	=item selection-popup (enabled by default)
		120
		121	Binds a popup menu to Ctrl-Button3 that lets you convert the selection
		122	text into various other formats/action (such as uri unescaping, perl
		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	};
		143
		144	=item searchable-scrollback<hotkey> (enabled by default)
		145
		146	Adds regex search functionality to the scrollback buffer, triggered
		147	by a hotkey (default: C<M-s>). While in search mode, normal terminal
		148	input/output is suspended and a regex is displayed at the bottom of the
		149	screen.
		150
		151	Inputting characters appends them to the regex and continues incremental
		152	search. C<BackSpace> removes a character from the regex, C<Up> and C<Down>
		153	search upwards/downwards in the scrollback buffer, C<End> jumps to the
		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.
		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.
		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
		250	Uses per-line display filtering (C<on_line_update>) to underline text
		251	matching a certain pattern and make it clickable. When clicked with the
		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 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.
		315
		316	=item block-graphics-to-ascii
		317
		318	A not very useful example of filtering all text output to the terminal
		319	by replacing all line-drawing characters (U+2500 .. U+259F) by a
		320	similar-looking ascii character.
		321
61	=item digital-clock	322	=item digital-clock
62		323
63	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.
64		393
65	=item example-refresh-hooks	394	=item example-refresh-hooks
66		395
67	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
68	window. Illustrates overwriting the refresh callbacks to create your own	397	window. Illustrates overwriting the refresh callbacks to create your own
69	overlays or changes.	398	overlays or changes.
70		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"
		412
71	=back	413	=back
		414
		415	=head1 API DOCUMENTATION
72		416
73	=head2 General API Considerations	417	=head2 General API Considerations
74		418
75	All objects (such as terminals, time watchers etc.) are typical	419	All objects (such as terminals, time watchers etc.) are typical
76	reference-to-hash objects. The hash can be used to store anything you	420	reference-to-hash objects. The hash can be used to store anything you
…		…
81	When objects are destroyed on the C++ side, the perl object hashes are	425	When objects are destroyed on the C++ side, the perl object hashes are
82	emptied, so its best to store related objects such as time watchers and	426	emptied, so its best to store related objects such as time watchers and
83	the like inside the terminal object so they get destroyed as soon as the	427	the like inside the terminal object so they get destroyed as soon as the
84	terminal is destroyed.	428	terminal is destroyed.
85		429
		430	Argument names also often indicate the type of a parameter. Here are some
		431	hints on what they mean:
		432
		433	=over 4
		434
		435	=item $text
		436
		437	Rxvt-unicode's special way of encoding text, where one "unicode" character
		438	always represents one screen cell. See L<ROW_t> for a discussion of this format.
		439
		440	=item $string
		441
		442	A perl text string, with an emphasis on I<text>. It can store all unicode
		443	characters and is to be distinguished with text encoded in a specific
		444	encoding (often locale-specific) and binary data.
		445
		446	=item $octets
		447
		448	Either binary data or - more common - a text string encoded in a
		449	locale-specific way.
		450
		451	=item $keysym
		452
		453	an integer that is a valid X11 keysym code. You can convert a string
		454	into a keysym and viceversa by using C<XStringToKeysym> and
		455	C<XKeysymToString>.
		456
		457	=back
		458
		459	=head2 Extension Objects
		460
		461	Every perl extension is a perl class. A separate perl object is created
		462	for each terminal, and each terminal has its own set of extension objects,
		463	which are passed as the first parameter to hooks. So extensions can use
		464	their C<$self> object without having to think about clashes with other
		465	extensions or other terminals, with the exception of methods and members
		466	that begin with an underscore character C<_>: these are reserved for
		467	internal use.
		468
		469	Although it isn't a C<urxvt::term> object, you can call all methods of the
		470	C<urxvt::term> class on this object.
		471
		472	It has the following methods and data members:
		473
		474	=over 4
		475
		476	=item $urxvt_term = $self->{term}
		477
		478	Returns the C<urxvt::term> object associated with this instance of the
		479	extension. This member I<must not> be changed in any way.
		480
		481	=item $self->enable ($hook_name => $cb, [$hook_name => $cb..])
		482
		483	Dynamically enable the given hooks (named without the C<on_> prefix) for
		484	this extension, replacing any previous hook. This is useful when you want
		485	to overwrite time-critical hooks only temporarily.
		486
		487	=item $self->disable ($hook_name[, $hook_name..])
		488
		489	Dynamically disable the given hooks.
		490
		491	=back
		492
86	=head2 Hooks	493	=head2 Hooks
87		494
88	The following subroutines can be declared in loaded scripts, and will be	495	The following subroutines can be declared in extension files, and will be
89	called whenever the relevant event happens.	496	called whenever the relevant event happens.
90		497
91	The first argument passed to them is an object private to each terminal	498	The first argument passed to them is an extension object as described in
92	and extension package. You can call all C<urxvt::term> methods on it, but	499	the in the C<Extension Objects> section.
93	its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
94	object that is shared between all packages is stored in the C<term>
95	member.
96		500
97	All of them must return a boolean value. If it is true, then the event	501	B<All> of these hooks must return a boolean value. If any of the called
98	counts as being I<consumed>, and the invocation of other hooks is skipped,	502	hooks returns true, then the event counts as being I<consumed>, and the
99	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.
100		504
101	When in doubt, return a false value (preferably C<()>).	505	I<< When in doubt, return a false value (preferably C<()>). >>
102		506
103	=over 4	507	=over 4
104		508
105	=item on_init $term	509	=item on_init $term
106		510
107	Called after a new terminal object has been initialized, but before	511	Called after a new terminal object has been initialized, but before
108	windows are created or the command gets run.	512	windows are created or the command gets run. Most methods are unsafe to
		513	call or deliver senseless data, as terminal size and other characteristics
		514	have not yet been determined. You can safely query and change resources
		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).
109		527
110	=item on_reset $term	528	=item on_reset $term
111		529
112	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
113	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
114	variables.	532	variables.
115		533
116	=item on_start $term	534	=item on_child_start $term, $pid
117		535
118	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.
119	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>.
120		542
121	=item on_sel_make $term, $eventtime	543	=item on_sel_make $term, $eventtime
122		544
123	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
124	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
…		…
131		553
132	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
133	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
134	by calling C<< $term->selection >>.	556	by calling C<< $term->selection >>.
135		557
136	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.
137		559
138	=item on_sel_extend $term	560	=item on_sel_extend $term
139		561
140	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
141	click) and is either supposed to return false (normal operation), or	563	click) and is either supposed to return false (normal operation), or
142	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
143	processing.	565	processing. This can happen multiple times, as long as the callback
		566	returns true, it will be called on every further click by the user and is
		567	supposed to enlarge the selection more and more, if possible.
144		568
145	See the F<selection> example extension.	569	See the F<selection> example extension.
146		570
147	=item on_focus_in $term
148
149	Called whenever the window gets the keyboard focus, before urxvt does
150	focus in processing.
151
152	=item on_focus_out $term
153
154	Called wheneever the window loses keyboard focus, before urxvt does focus
155	out processing.
156
157	=item on_view_change $term, $offset	571	=item on_view_change $term, $offset
158		572
159	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
160	scrolls. Offset C<0> means display the normal terminal, positive values	574	scrolls. Offset C<0> means display the normal terminal, positive values
161	show this many lines of scrollback.	575	show this many lines of scrollback.
162		576
163	=item on_scroll_back $term, $lines, $saved	577	=item on_scroll_back $term, $lines, $saved
164		578
…		…
168		582
169	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,	583	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
170	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total	584	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
171	number of lines that will be in the scrollback buffer.	585	number of lines that will be in the scrollback buffer.
172		586
173	=item on_tty_activity $term *NYI*	587	=item on_osc_seq $term, $op, $args, $resp
174		588
175	Called whenever the program(s) running in the urxvt window send output.	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, $resp
		598
		599	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
		600	operating system command) is processed. Cursor position and other state
		601	information is up-to-date when this happens. For interoperability, the
		602	string should start with the extension name (sans -osc) and a semicolon,
		603	to distinguish it from commands for other extensions, and this might be
		604	enforced in the future.
		605
		606	For example, C<overlay-osc> uses this:
		607
		608	sub on_osc_seq_perl {
		609	my ($self, $osc, $resp) = @_;
		610
		611	return unless $osc =~ s/^overlay;//;
		612
		613	... process remaining $osc string
		614	}
		615
		616	Be careful not ever to trust (in a security sense) the data you receive,
		617	as its source can not easily be controlled (e-mail content, messages from
		618	other users on the same system etc.).
		619
		620	For responses, C<$resp> contains the end-of-args separator used by the
		621	sender.
		622
		623	=item on_add_lines $term, $string
		624
		625	Called whenever text is about to be output, with the text as argument. You
		626	can filter/change and output the text yourself by returning a true value
		627	and calling C<< $term->scr_add_lines >> yourself. Please note that this
		628	might be very slow, however, as your hook is called for B<all> text being
		629	output.
		630
		631	=item on_tt_write $term, $octets
		632
		633	Called whenever some data is written to the tty/pty and can be used to
		634	suppress or filter tty input.
		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
		643	=item on_line_update $term, $row
		644
		645	Called whenever a line was updated or changed. Can be used to filter
		646	screen output (e.g. underline urls or other useless stuff). Only lines
		647	that are being shown will be filtered, and, due to performance reasons,
		648	not always immediately.
		649
		650	The row number is always the topmost row of the line if the line spans
		651	multiple rows.
		652
		653	Please note that, if you change the line, then the hook might get called
		654	later with the already-modified line (e.g. if unrelated parts change), so
		655	you cannot just toggle rendition bits, but only set them.
176		656
177	=item on_refresh_begin $term	657	=item on_refresh_begin $term
178		658
179	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
180	or similar effects by modify terminal contents in refresh_begin, and	660	similar effects by modifying the terminal contents in refresh_begin, and
181	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
182	code is run after this hook, and takes precedence.	662	code is run after this hook, and takes precedence.
183		663
184	=item on_refresh_end $term	664	=item on_refresh_end $term
185		665
186	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>.
187		667
188	=item on_keyboard_command $term, $string	668	=item on_user_command $term, $string
189		669
190	Called whenever the user presses a key combination that has a	670	Called whenever a user-configured event is being activated (e.g. via
191	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>
192	resource in the @@RXVT_NAME@@(1) manpage).	672	resource in the @@RXVT_NAME@@(1) manpage).
193		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.
		699
		700	=item on_focus_in $term
		701
		702	Called whenever the window gets the keyboard focus, before rxvt-unicode
		703	does focus in processing.
		704
		705	=item on_focus_out $term
		706
		707	Called whenever the window loses keyboard focus, before rxvt-unicode does
		708	focus out processing.
		709
		710	=item on_configure_notify $term, $event
		711
		712	=item on_property_notify $term, $event
		713
		714	=item on_key_press $term, $event, $keysym, $octets
		715
		716	=item on_key_release $term, $event, $keysym
		717
		718	=item on_button_press $term, $event
		719
		720	=item on_button_release $term, $event
		721
		722	=item on_motion_notify $term, $event
		723
		724	=item on_map_notify $term, $event
		725
		726	=item on_unmap_notify $term, $event
		727
		728	Called whenever the corresponding X event is received for the terminal. If
		729	the hook returns true, then the event will be ignored by rxvt-unicode.
		730
		731	The event is a hash with most values as named by Xlib (see the XEvent
		732	manpage), with the additional members C<row> and C<col>, which are the
		733	(real, not screen-based) row and column under the mouse cursor.
		734
		735	C<on_key_press> additionally receives the string rxvt-unicode would
		736	output, if any, in locale-specific encoding.
		737
		738	subwindow.
		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
194	=back	753	=back
195		754
		755	=cut
		756
		757	package urxvt;
		758
		759	use utf8;
		760	use strict;
		761	use Carp ();
		762	use Scalar::Util ();
		763	use List::Util ();
		764
		765	our $VERSION = 1;
		766	our $TERM;
		767	our @TERM_INIT;
		768	our @TERM_EXT;
		769	our @HOOKNAME;
		770	our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
		771	our %OPTION;
		772
		773	our $LIBDIR;
		774	our $RESNAME;
		775	our $RESCLASS;
		776	our $RXVTNAME;
		777
		778	our $NOCHAR = chr 0xffff;
		779
196	=head2 Variables in the C<urxvt> Package	780	=head2 Variables in the C<urxvt> Package
197		781
198	=over 4	782	=over 4
199		783
		784	=item $urxvt::LIBDIR
		785
		786	The rxvt-unicode library directory, where, among other things, the perl
		787	modules and scripts are stored.
		788
		789	=item $urxvt::RESCLASS, $urxvt::RESCLASS
		790
		791	The resource class and name rxvt-unicode uses to look up X resources.
		792
		793	=item $urxvt::RXVTNAME
		794
		795	The basename of the installed binaries, usually C<urxvt>.
		796
200	=item $urxvt::TERM	797	=item $urxvt::TERM
201		798
202	The current terminal. Whenever a callback/Hook is bein executed, this	799	The current terminal. This variable stores the current C<urxvt::term>
203	variable stores the current C<urxvt::term> object.	800	object, whenever a callback/hook is executing.
		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>.
204		817
205	=back	818	=back
206		819
207	=head2 Functions in the C<urxvt> Package	820	=head2 Functions in the C<urxvt> Package
208		821
209	=over 4	822	=over 4
210		823
211	=item urxvt::fatal $errormessage	824	=item urxvt::fatal $errormessage
212		825
213	Fatally aborts execution with the given error message. Avoid at all	826	Fatally aborts execution with the given error message (which should
214	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
215	starts up.	828	is acceptable (and useful) is in the init hook, where it prevents the
		829	terminal from starting up.
216		830
217	=item urxvt::warn $string	831	=item urxvt::warn $string
218		832
219	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
220	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
221	that calls this function.	835	that calls this function.
222		836
223	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
224	correct place, e.g. on stderr of the connecting urxvtc client.	838	correct place, e.g. on stderr of the connecting urxvtc client.
225		839
		840	Messages have a size limit of 1023 bytes currently.
		841
		842	=item @terms = urxvt::termlist
		843
		844	Returns all urxvt::term objects that exist in this process, regardless of
		845	whether they are started, being destroyed etc., so be careful. Only term
		846	objects that have perl extensions attached will be returned (because there
		847	is no urxvt::term object associated with others).
		848
226	=item $time = urxvt::NOW	849	=item $time = urxvt::NOW
227		850
228	Returns the "current time" (as per the event loop).	851	Returns the "current time" (as per the event loop).
		852
		853	=item urxvt::CurrentTime
		854
		855	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
		856	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
		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
		874
		875	Various constants for use in X calls and event processing.
229		876
230	=back	877	=back
231		878
232	=head2 RENDITION	879	=head2 RENDITION
233		880
…		…
248		895
249	=item $rend = urxvt::OVERLAY_RSTYLE	896	=item $rend = urxvt::OVERLAY_RSTYLE
250		897
251	Return the rendition mask used for overlays by default.	898	Return the rendition mask used for overlays by default.
252		899
253	=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
254		902
255	Return the bit that enabled bold, italic, blink, reverse-video and	903	Return the bit that enabled bold, italic, blink, reverse-video and
256	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
257	the bitset.	905	the bitset.
258		906
…		…
260		908
261	=item $background = urxvt::GET_BASEBG $rend	909	=item $background = urxvt::GET_BASEBG $rend
262		910
263	Return the foreground/background colour index, respectively.	911	Return the foreground/background colour index, respectively.
264		912
265	=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)	913	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
266		914
267	=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)	915	=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
		916
		917	=item $rend = urxvt::SET_COLOR $rend, $new_fg, $new_bg
268		918
269	Replace the foreground/background colour in the rendition mask with the	919	Replace the foreground/background colour in the rendition mask with the
270	specified one.	920	specified one.
271		921
272	=item $value = urxvt::GET_CUSTOM ($rend)	922	=item $value = urxvt::GET_CUSTOM $rend
273		923
274	Return the "custom" value: Every rendition has 5 bits for use by	924	Return the "custom" value: Every rendition has 5 bits for use by
275	extensions. They can be set and changed as you like and are initially	925	extensions. They can be set and changed as you like and are initially
276	zero.	926	zero.
277		927
278	=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)	928	=item $rend = urxvt::SET_CUSTOM $rend, $new_value
279		929
280	Change the custom value.	930	Change the custom value.
281		931
282	=back	932	=back
283		933
284	=cut	934	=cut
285		935
286	package urxvt;
287
288	use strict;
289	use Scalar::Util ();
290
291	our $TERM;
292	our @HOOKNAME;
293	our $LIBDIR;
294
295	BEGIN {	936	BEGIN {
296	urxvt->bootstrap;
297
298	# overwrite perl's warn	937	# overwrite perl's warn
299	*CORE::GLOBAL::warn = sub {	938	*CORE::GLOBAL::warn = sub {
300	my $msg = join "", @_;	939	my $msg = join "", @_;
301	$msg .= "\n"	940	$msg .= "\n"
302	unless $msg =~ /\n$/;	941	unless $msg =~ /\n$/;
303	urxvt::warn ($msg);	942	urxvt::warn ($msg);
304	};	943	};
305	}	944	}
306		945
307	my @hook_count;	946	no warnings 'utf8';
		947
308	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};	948	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
309		949
310	sub verbose {	950	sub verbose {
311	my ($level, $msg) = @_;	951	my ($level, $msg) = @_;
312	warn "$msg\n" if $level <= $verbosity;	952	warn "$msg\n" if $level <= $verbosity;
313	}	953	}
314		954
315	# find on_xxx subs in the package and register them	955	my %extension_pkg;
316	# as hooks
317	sub register_package($) {
318	my ($pkg) = @_;
319
320	for my $htype (0.. $#HOOKNAME) {
321	my $name = $HOOKNAME[$htype];
322
323	my $ref = $pkg->can ("on_" . lc $name)
324	or next;
325
326	$TERM->{_hook}[$htype]{$pkg} = $ref;
327	$hook_count[$htype]++
328	or set_should_invoke $htype, 1;
329	}
330	}
331
332	my $script_pkg = "script0000";
333	my %script_pkg;
334		956
335	# load a single script into its own package, once only	957	# load a single script into its own package, once only
336	sub script_package($) {	958	sub extension_package($) {
337	my ($path) = @_;	959	my ($path) = @_;
338		960
339	$script_pkg{$path} ||= do {	961	$extension_pkg{$path} ||= do {
340	my $pkg = "urxvt::" . ($script_pkg++);	962	$path =~ /([^\/\\]+)$/;
		963	my $pkg = $1;
		964	$pkg =~ s/[^[:word:]]/_/g;
		965	$pkg = "urxvt::ext::$pkg";
341		966
342	verbose 3, "loading script '$path' into package '$pkg'";	967	verbose 3, "loading extension '$path' into package '$pkg'";
343		968
344	open my $fh, "<:raw", $path	969	open my $fh, "<:raw", $path
345	or die "$path: $!";	970	or die "$path: $!";
346		971
347	my $source = "package $pkg; use strict; use utf8;\n"	972	my $source =
		973	"package $pkg; use strict; use utf8; no warnings 'utf8';\n"
348	. "#line 1 \"$path\"\n{\n"	974	. "#line 1 \"$path\"\n{\n"
349	. (do { local $/; <$fh> })	975	. (do { local $/; <$fh> })
350	. "\n};\n1";	976	. "\n};\n1";
351		977
		978	eval $source
352	eval $source or die "$path: $@";	979	or die "$path: $@";
353		980
354	$pkg	981	$pkg
355	}	982	}
356	}	983	}
		984
		985	our $retval; # return value for urxvt
357		986
358	# called by the rxvt core	987	# called by the rxvt core
359	sub invoke {	988	sub invoke {
360	local $TERM = shift;	989	local $TERM = shift;
361	my $htype = shift;	990	my $htype = shift;
362		991
363	if ($htype == 0) { # INIT	992	if ($htype == 0) { # INIT
364	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");	993	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$ENV{HOME}/.urxvt/ext", "$LIBDIR/perl");
365		994
366	for my $ext (split /:/, $TERM->resource ("perl_ext")) {	995	my %ext_arg;
		996
		997	{
		998	my @init = @TERM_INIT;
		999	@TERM_INIT = ();
		1000	$_->($TERM) for @init;
		1001	my @pkg = @TERM_EXT;
		1002	@TERM_EXT = ();
		1003	$TERM->register_package ($_) for @pkg;
		1004	}
		1005
		1006	for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
		1007	if ($_ eq "default") {
		1008	$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
		1009	} elsif (/^-(.*)$/) {
		1010	delete $ext_arg{$1};
		1011	} elsif (/^([^<]+)<(.*)>$/) {
		1012	push @{ $ext_arg{$1} }, $2;
		1013	} else {
		1014	$ext_arg{$_} ||= [];
		1015	}
		1016	}
		1017
		1018	for my $ext (sort keys %ext_arg) {
367	my @files = grep -f $_, map "$_/$ext", @dirs;	1019	my @files = grep -f $_, map "$_/$ext", @dirs;
368		1020
369	if (@files) {	1021	if (@files) {
370	register_package script_package $files[0];	1022	$TERM->register_package (extension_package $files[0], $ext_arg{$ext});
371	} else {	1023	} else {
372	warn "perl extension '$ext' not found in perl library search path\n";	1024	warn "perl extension '$ext' not found in perl library search path\n";
373	}	1025	}
374	}	1026	}
375		1027
		1028	eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval");
		1029	warn $@ if $@;
		1030	}
		1031
		1032	$retval = undef;
		1033
		1034	if (my $cb = $TERM->{_hook}[$htype]) {
		1035	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
		1036	if $verbosity >= 10;
		1037
		1038	for my $pkg (keys %$cb) {
		1039	my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg}, @_) };
		1040	$retval ||= $retval_;
		1041
		1042	if ($@) {
		1043	$TERM->ungrab; # better to lose the grab than the session
		1044	warn $@;
		1045	}
		1046	}
		1047
		1048	verbose 11, "$HOOKNAME[$htype] returning <$retval>"
		1049	if $verbosity >= 11;
		1050	}
		1051
376	} elsif ($htype == 1) { # DESTROY	1052	if ($htype == 1) { # DESTROY
377	if (my $hook = $TERM->{_hook}) {	1053	# clear package objects
378	for my $htype (0..$#$hook) {	1054	%$_ = () for values %{ $TERM->{_pkg} };
379	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }	1055
380	or set_should_invoke $htype, 0;	1056	# clear package
		1057	%$TERM = ();
		1058	}
		1059
		1060	$retval
		1061	}
		1062
		1063	sub SET_COLOR($$$) {
		1064	SET_BGCOLOR (SET_FGCOLOR ($_[0], $_[1]), $_[2])
		1065	}
		1066
		1067	sub rend2mask {
		1068	no strict 'refs';
		1069	my ($str, $mask) = (@_, 0);
		1070	my %color = ( fg => undef, bg => undef );
		1071	my @failed;
		1072	for my $spec ( split /\s+/, $str ) {
		1073	if ( $spec =~ /^([fb]g)[_:-]?(\d+)/i ) {
		1074	$color{lc($1)} = $2;
		1075	} else {
		1076	my $neg = $spec =~ s/^[-^]//;
		1077	unless ( exists &{"RS_$spec"} ) {
		1078	push @failed, $spec;
		1079	next;
		1080	}
		1081	my $cur = &{"RS_$spec"};
		1082	if ( $neg ) {
		1083	$mask &= ~$cur;
		1084	} else {
		1085	$mask |= $cur;
381	}	1086	}
382	}	1087	}
383	}	1088	}
		1089	($mask, @color{qw(fg bg)}, \@failed)
		1090	}
384		1091
385	my $cb = $TERM->{_hook}[$htype]	1092	# urxvt::term::extension
386	or return;
387		1093
388	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"	1094	package urxvt::term::extension;
389	if $verbosity >= 10;
390		1095
391	keys %$cb;	1096	sub enable {
		1097	my ($self, %hook) = @_;
		1098	my $pkg = $self->{_pkg};
392		1099
393	while (my ($pkg, $cb) = each %$cb) {	1100	while (my ($name, $cb) = each %hook) {
394	return 1	1101	my $htype = $HOOKTYPE{uc $name};
395	if $cb->(	1102	defined $htype
396	$TERM->{$pkg} ||= do {	1103	or Carp::croak "unsupported hook type '$name'";
397	my $proxy = bless { }, urxvt::term::proxy::;	1104
398	Scalar::Util::weaken ($proxy->{term} = $TERM);	1105	$self->modify_should_invoke_count ($htype, +1)
399	$proxy	1106	unless exists $self->{term}{_hook}[$htype]{$pkg};
400	},	1107
401	@_,	1108	$self->{term}{_hook}[$htype]{$pkg} = $cb;
402	);
403	}	1109	}
		1110	}
404		1111
		1112	sub disable {
		1113	my ($self, @hook) = @_;
		1114	my $pkg = $self->{_pkg};
		1115
		1116	for my $name (@hook) {
		1117	my $htype = $HOOKTYPE{uc $name};
		1118	defined $htype
		1119	or Carp::croak "unsupported hook type '$name'";
		1120
		1121	$self->modify_should_invoke_count ($htype, -1)
		1122	if delete $self->{term}{_hook}[$htype]{$pkg};
405	0	1123	}
406	}	1124	}
407		1125
408	sub urxvt::term::proxy::AUTOLOAD {	1126	our $AUTOLOAD;
409	$urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/	1127
		1128	sub AUTOLOAD {
		1129	$AUTOLOAD =~ /:([^:]+)$/
410	or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";	1130	or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
411		1131
412	eval qq{	1132	eval qq{
413	sub $urxvt::term::proxy::AUTOLOAD {	1133	sub $AUTOLOAD {
414	my \$proxy = shift;	1134	my \$proxy = shift;
415	\$proxy->{term}->$1 (\@_)	1135	\$proxy->{term}->$1 (\@_)
416	}	1136	}
417	1	1137	1
418	} or die "FATAL: unable to compile method forwarder: $@";	1138	} or die "FATAL: unable to compile method forwarder: $@";
419		1139
420	goto &$urxvt::term::proxy::AUTOLOAD;	1140	goto &$AUTOLOAD;
421	}	1141	}
		1142
		1143	sub DESTROY {
		1144	# nop
		1145	}
		1146
		1147	# urxvt::destroy_hook
		1148
		1149	sub urxvt::destroy_hook::DESTROY {
		1150	${$_[0]}->();
		1151	}
		1152
		1153	sub urxvt::destroy_hook(&) {
		1154	bless \shift, urxvt::destroy_hook::
		1155	}
		1156
		1157	package urxvt::anyevent;
		1158
		1159	=head2 The C<urxvt::anyevent> Class
		1160
		1161	The sole purpose of this class is to deliver an interface to the
		1162	C<AnyEvent> module - any module using it will work inside urxvt without
		1163	further programming. The only exception is that you cannot wait on
		1164	condition variables, but non-blocking condvar use is ok. What this means
		1165	is that you cannot use blocking APIs, but the non-blocking variant should
		1166	work.
		1167
		1168	=cut
		1169
		1170	our $VERSION = '5.23';
		1171
		1172	$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
		1173	push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
		1174
		1175	sub timer {
		1176	my ($class, %arg) = @_;
		1177
		1178	my $cb = $arg{cb};
		1179
		1180	urxvt::timer
		1181	->new
		1182	->after ($arg{after}, $arg{interval})
		1183	->cb ($arg{interval} ? $cb : sub {
		1184	$_[0]->stop; # need to cancel manually
		1185	$cb->();
		1186	})
		1187	}
		1188
		1189	sub io {
		1190	my ($class, %arg) = @_;
		1191
		1192	my $cb = $arg{cb};
		1193	my $fd = fileno $arg{fh};
		1194	defined $fd or $fd = $arg{fh};
		1195
		1196	bless [$arg{fh}, urxvt::iow
		1197	->new
		1198	->fd ($fd)
		1199	->events (($arg{poll} =~ /r/ ? 1 : 0)
		1200	| ($arg{poll} =~ /w/ ? 2 : 0))
		1201	->start
		1202	->cb ($cb)
		1203	], urxvt::anyevent::
		1204	}
		1205
		1206	sub idle {
		1207	my ($class, %arg) = @_;
		1208
		1209	my $cb = $arg{cb};
		1210
		1211	urxvt::iw
		1212	->new
		1213	->start
		1214	->cb ($cb)
		1215	}
		1216
		1217	sub child {
		1218	my ($class, %arg) = @_;
		1219
		1220	my $cb = $arg{cb};
		1221
		1222	urxvt::pw
		1223	->new
		1224	->start ($arg{pid})
		1225	->cb (sub {
		1226	$_[0]->stop; # need to cancel manually
		1227	$cb->($_[0]->rpid, $_[0]->rstatus);
		1228	})
		1229	}
		1230
		1231	sub DESTROY {
		1232	$_[0][1]->stop;
		1233	}
		1234
		1235	# only needed for AnyEvent < 6 compatibility
		1236	sub one_event {
		1237	Carp::croak "AnyEvent->one_event blocking wait unsupported in urxvt, use a non-blocking API";
		1238	}
		1239
		1240	package urxvt::term;
422		1241
423	=head2 The C<urxvt::term> Class	1242	=head2 The C<urxvt::term> Class
424		1243
425	=over 4	1244	=over 4
		1245
		1246	=cut
		1247
		1248	# find on_xxx subs in the package and register them
		1249	# as hooks
		1250	sub register_package {
		1251	my ($self, $pkg, $argv) = @_;
		1252
		1253	no strict 'refs';
		1254
		1255	urxvt::verbose 6, "register package $pkg to $self";
		1256
		1257	@{"$pkg\::ISA"} = urxvt::term::extension::;
		1258
		1259	my $proxy = bless {
		1260	_pkg => $pkg,
		1261	argv => $argv,
		1262	}, $pkg;
		1263	Scalar::Util::weaken ($proxy->{term} = $self);
		1264
		1265	$self->{_pkg}{$pkg} = $proxy;
		1266
		1267	for my $name (@HOOKNAME) {
		1268	if (my $ref = $pkg->can ("on_" . lc $name)) {
		1269	$proxy->enable ($name => $ref);
		1270	}
		1271	}
		1272	}
		1273
		1274	=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
		1275
		1276	Creates a new terminal, very similar as if you had started it with system
		1277	C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
		1278	hash which defines the environment of the new terminal.
		1279
		1280	Croaks (and probably outputs an error message) if the new instance
		1281	couldn't be created. Returns C<undef> if the new instance didn't
		1282	initialise perl, and the terminal object otherwise. The C<init> and
		1283	C<start> hooks will be called before this call returns, and are free to
		1284	refer to global data (which is race free).
		1285
		1286	=cut
		1287
		1288	sub new {
		1289	my ($class, $env, @args) = @_;
		1290
		1291	$env or Carp::croak "environment hash missing in call to urxvt::term->new";
		1292	@args or Carp::croak "name argument missing in call to urxvt::term->new";
		1293
		1294	_new ([ map "$_=$env->{$_}", keys %$env ], \@args);
		1295	}
		1296
		1297	=item $term->destroy
		1298
		1299	Destroy the terminal object (close the window, free resources
		1300	etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
		1301	watchers (timers, io watchers) are still active.
		1302
		1303	=item $term->exec_async ($cmd[, @args])
		1304
		1305	Works like the combination of the C<fork>/C<exec> builtins, which executes
		1306	("starts") programs in the background. This function takes care of setting
		1307	the user environment before exec'ing the command (e.g. C<PATH>) and should
		1308	be preferred over explicit calls to C<exec> or C<system>.
		1309
		1310	Returns the pid of the subprocess or C<undef> on error.
		1311
		1312	=cut
		1313
		1314	sub exec_async {
		1315	my $self = shift;
		1316
		1317	my $pid = fork;
		1318
		1319	return $pid
		1320	if !defined $pid or $pid;
		1321
		1322	%ENV = %{ $self->env };
		1323
		1324	exec @_;
		1325	urxvt::_exit 255;
		1326	}
		1327
		1328	=item $isset = $term->option ($optval[, $set])
		1329
		1330	Returns true if the option specified by C<$optval> is enabled, and
		1331	optionally change it. All option values are stored by name in the hash
		1332	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
		1333
		1334	Here is a likely non-exhaustive list of option names, please see the
		1335	source file F</src/optinc.h> to see the actual list:
		1336
		1337	borderLess buffered console cursorBlink cursorUnderline hold iconic
		1338	insecure intensityStyles iso14755 iso14755_52 jumpScroll loginShell
		1339	mapAlert meta8 mouseWheelScrollPage override_redirect pastableTabs
		1340	pointerBlank reverseVideo scrollBar scrollBar_floating scrollBar_right
		1341	scrollTtyKeypress scrollTtyOutput scrollWithBuffer secondaryScreen
		1342	secondaryScroll skipBuiltinGlyphs skipScroll transparent tripleclickwords
		1343	urgentOnBell utmpInhibit visualBell
426		1344
427	=item $value = $term->resource ($name[, $newval])	1345	=item $value = $term->resource ($name[, $newval])
428		1346
429	Returns the current resource value associated with a given name and	1347	Returns the current resource value associated with a given name and
430	optionally sets a new value. Setting values is most useful in the C<init>	1348	optionally sets a new value. Setting values is most useful in the C<init>
…		…
439	likely change).	1357	likely change).
440		1358
441	Please note that resource strings will currently only be freed when the	1359	Please note that resource strings will currently only be freed when the
442	terminal is destroyed, so changing options frequently will eat memory.	1360	terminal is destroyed, so changing options frequently will eat memory.
443		1361
444	Here is a a likely non-exhaustive list of resource names, not all of which	1362	Here is a likely non-exhaustive list of resource names, not all of which
445	are supported in every build, please see the source to see the actual	1363	are supported in every build, please see the source file F</src/rsinc.h>
446	list:	1364	to see the actual list:
447		1365
448	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont	1366	answerbackstring backgroundPixmap backspace_key blendtype blurradius
449	borderLess color cursorBlink cursorUnderline cutchars delete_key	1367	boldFont boldItalicFont borderLess buffered chdir color cursorBlink
450	display_name embed ext_bwidth fade font geometry hold iconName	1368	cursorUnderline cutchars delete_key depth display_name embed ext_bwidth
451	imFont imLocale inputMethod insecure int_bwidth intensityStyles	1369	fade font geometry hold iconName iconfile imFont imLocale inputMethod
		1370	insecure int_bwidth intensityStyles iso14755 iso14755_52 italicFont
452	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier	1371	jumpScroll letterSpace lineSpace loginShell mapAlert meta8 modifier
453	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext	1372	mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
454	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd	1373	perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
455	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating	1374	preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
456	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput	1375	scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
457	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle	1376	scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
458	shade term_name title transparent transparent_all tripleclickwords	1377	secondaryScreen secondaryScroll shade skipBuiltinGlyphs skipScroll
		1378	term_name title transient_for transparent tripleclickwords urgentOnBell
459	utmpInhibit visualBell	1379	utmpInhibit visualBell
460		1380
461	=cut	1381	=cut
462		1382
463	sub urxvt::term::resource($$;$) {	1383	sub resource($$;$) {
464	my ($self, $name) = (shift, shift);	1384	my ($self, $name) = (shift, shift);
465	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);	1385	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
466	goto &urxvt::term::_resource;	1386	goto &urxvt::term::_resource
467	}	1387	}
		1388
		1389	=item $value = $term->x_resource ($pattern)
		1390
		1391	Returns the X-Resource for the given pattern, excluding the program or
		1392	class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
		1393	same value as used by this instance of rxvt-unicode. Returns C<undef> if no
		1394	resource with that pattern exists.
		1395
		1396	This method should only be called during the C<on_start> hook, as there is
		1397	only one resource database per display, and later invocations might return
		1398	the wrong resources.
		1399
		1400	=item $success = $term->parse_keysym ($key, $octets)
		1401
		1402	Adds a key binding exactly as specified via a resource. See the
		1403	C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
		1404
		1405	=item $term->register_command ($keysym, $modifiermask, $string)
		1406
		1407	Adds a key binding. This is a lower level api compared to
		1408	C<parse_keysym>, as it expects a parsed key description, and can be
		1409	used only inside either the C<on_init> hook, to add a binding, or the
		1410	C<on_register_command> hook, to modify a parsed binding.
		1411
		1412	=item $rend = $term->rstyle ([$new_rstyle])
		1413
		1414	Return and optionally change the current rendition. Text that is output by
		1415	the terminal application will use this style.
		1416
		1417	=item ($row, $col) = $term->screen_cur ([$row, $col])
		1418
		1419	Return the current coordinates of the text cursor position and optionally
		1420	set it (which is usually bad as applications don't expect that).
468		1421
469	=item ($row, $col) = $term->selection_mark ([$row, $col])	1422	=item ($row, $col) = $term->selection_mark ([$row, $col])
470		1423
471	=item ($row, $col) = $term->selection_beg ([$row, $col])	1424	=item ($row, $col) = $term->selection_beg ([$row, $col])
472		1425
473	=item ($row, $col) = $term->selection_end ([$row, $col])	1426	=item ($row, $col) = $term->selection_end ([$row, $col])
474		1427
475	Return the current values of the selection mark, begin or end positions,	1428	Return the current values of the selection mark, begin or end positions.
476	and optionally set them to new values.
477		1429
		1430	When arguments are given, then the selection coordinates are set to
		1431	C<$row> and C<$col>, and the selection screen is set to the current
		1432	screen.
		1433
		1434	=item $screen = $term->selection_screen ([$screen])
		1435
		1436	Returns the current selection screen, and then optionally sets it.
		1437
		1438	=item $term->selection_make ($eventtime[, $rectangular])
		1439
		1440	Tries to make a selection as set by C<selection_beg> and
		1441	C<selection_end>. If C<$rectangular> is true (default: false), a
		1442	rectangular selection will be made. This is the preferred function to make
		1443	a selection.
		1444
478	=item $success = $term->selection_grab ($eventtime)	1445	=item $success = $term->selection_grab ($eventtime[, $clipboard])
479		1446
480	Try to request the primary selection from the server (for example, as set	1447	Try to acquire ownership of the primary (clipboard if C<$clipboard> is
481	by the next method).	1448	true) selection from the server. The corresponding text can be set
		1449	with the next method. No visual feedback will be given. This function
		1450	is mostly useful from within C<on_sel_grab> hooks.
482		1451
483	=item $oldtext = $term->selection ([$newtext])	1452	=item $oldtext = $term->selection ([$newtext, $clipboard])
484		1453
485	Return the current selection text and optionally replace it by C<$newtext>.	1454	Return the current selection (clipboard if C<$clipboard> is true) text
		1455	and optionally replace it by C<$newtext>.
486		1456
		1457	=item $term->selection_clear ([$clipboard])
		1458
		1459	Revoke ownership of the primary (clipboard if C<$clipboard> is true) selection.
		1460
487	#=item $term->overlay ($x, $y, $text)	1461	=item $term->overlay_simple ($x, $y, $text)
488	#	1462
489	#Create a simple multi-line overlay box. See the next method for details.	1463	Create a simple multi-line overlay box. See the next method for details.
490	#	1464
491	#=cut	1465	=cut
492		1466
493	sub urxvt::term::scr_overlay {	1467	sub overlay_simple {
494	die;
495	my ($self, $x, $y, $text) = @_;	1468	my ($self, $x, $y, $text) = @_;
496		1469
497	my @lines = split /\n/, $text;	1470	my @lines = split /\n/, $text;
498		1471
499	my $w = 0;	1472	my $w = List::Util::max map $self->strwidth ($_), @lines;
500	for (map $self->strwidth ($_), @lines) {
501	$w = $_ if $w < $_;
502	}
503		1473
504	$self->scr_overlay_new ($x, $y, $w, scalar @lines);	1474	my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
505	$self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;	1475	$overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
		1476
		1477	$overlay
506	}	1478	}
507		1479
508	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])	1480	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
509		1481
510	Create a new (empty) overlay at the given position with the given	1482	Create a new (empty) overlay at the given position with the given
…		…
522		1494
523	The methods currently supported on C<urxvt::overlay> objects are:	1495	The methods currently supported on C<urxvt::overlay> objects are:
524		1496
525	=over 4	1497	=over 4
526		1498
527	=item $overlay->set ($x, $y, $text, $rend)	1499	=item $overlay->set ($x, $y, $text[, $rend])
528		1500
529	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts	1501	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts
530	text in rxvt-unicode's special encoding and an array of rendition values	1502	text in rxvt-unicode's special encoding and an array of rendition values
531	at a specific position inside the overlay.	1503	at a specific position inside the overlay.
532		1504
		1505	If C<$rend> is missing, then the rendition will not be changed.
		1506
533	=item $overlay->hide	1507	=item $overlay->hide
534		1508
535	If visible, hide the overlay, but do not destroy it.	1509	If visible, hide the overlay, but do not destroy it.
536		1510
537	=item $overlay->show	1511	=item $overlay->show
538		1512
539	If hidden, display the overlay again.	1513	If hidden, display the overlay again.
540		1514
541	=back	1515	=back
542		1516
		1517	=item $popup = $term->popup ($event)
		1518
		1519	Creates a new C<urxvt::popup> object that implements a popup menu. The
		1520	C<$event> I<must> be the event causing the menu to pop up (a button event,
		1521	currently).
		1522
		1523	=cut
		1524
		1525	sub popup {
		1526	my ($self, $event) = @_;
		1527
		1528	$self->grab ($event->{time}, 1)
		1529	or return;
		1530
		1531	my $popup = bless {
		1532	term => $self,
		1533	event => $event,
		1534	}, urxvt::popup::;
		1535
		1536	Scalar::Util::weaken $popup->{term};
		1537
		1538	$self->{_destroy}{$popup} = urxvt::destroy_hook { $popup->{popup}->destroy };
		1539	Scalar::Util::weaken $self->{_destroy}{$popup};
		1540
		1541	$popup
		1542	}
		1543
543	=item $cellwidth = $term->strwidth $string	1544	=item $cellwidth = $term->strwidth ($string)
544		1545
545	Returns the number of screen-cells this string would need. Correctly	1546	Returns the number of screen-cells this string would need. Correctly
546	accounts for wide and combining characters.	1547	accounts for wide and combining characters.
547		1548
548	=item $octets = $term->locale_encode $string	1549	=item $octets = $term->locale_encode ($string)
549		1550
550	Convert the given text string into the corresponding locale encoding.	1551	Convert the given text string into the corresponding locale encoding.
551		1552
552	=item $string = $term->locale_decode $octets	1553	=item $string = $term->locale_decode ($octets)
553		1554
554	Convert the given locale-encoded octets into a perl string.	1555	Convert the given locale-encoded octets into a perl string.
555		1556
		1557	=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
		1558
		1559	XORs the rendition values in the given span with the provided value
		1560	(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
		1561	refresh hooks to provide effects similar to the selection.
		1562
		1563	=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
		1564
		1565	Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
		1566	whitespace will additionally be xored with the C<$rstyle2>, which defaults
		1567	to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
		1568	it instead. Both styles I<MUST NOT> contain font styles.
		1569
		1570	=item $term->scr_bell
		1571
		1572	Ring the bell!
		1573
		1574	=item $term->scr_add_lines ($string)
		1575
		1576	Write the given text string to the screen, as if output by the application
		1577	running inside the terminal. It may not contain command sequences (escape
		1578	codes), but is free to use line feeds, carriage returns and tabs. The
		1579	string is a normal text string, not in locale-dependent encoding.
		1580
		1581	Normally its not a good idea to use this function, as programs might be
		1582	confused by changes in cursor position or scrolling. Its useful inside a
		1583	C<on_add_lines> hook, though.
		1584
		1585	=item $term->scr_change_screen ($screen)
		1586
		1587	Switch to given screen - 0 primary, 1 secondary.
		1588
		1589	=item $term->cmd_parse ($octets)
		1590
		1591	Similar to C<scr_add_lines>, but the argument must be in the
		1592	locale-specific encoding of the terminal and can contain command sequences
		1593	(escape codes) that will be interpreted.
		1594
556	=item $term->tt_write ($octets)	1595	=item $term->tt_write ($octets)
557		1596
558	Write the octets given in C<$data> to the tty (i.e. as program input). To	1597	Write the octets given in C<$octets> to the tty (i.e. as program input). To
559	pass characters instead of octets, you should convert your strings first	1598	pass characters instead of octets, you should convert your strings first
560	to the locale-specific encoding using C<< $term->locale_encode >>.	1599	to the locale-specific encoding using C<< $term->locale_encode >>.
561		1600
		1601	=item $term->tt_paste ($octets)
		1602
		1603	Write the octets given in C<$octets> to the tty as a paste, converting NL to
		1604	CR and bracketing the data with control sequences if bracketed paste mode
		1605	is set.
		1606
		1607	=item $old_events = $term->pty_ev_events ([$new_events])
		1608
		1609	Replaces the event mask of the pty watcher by the given event mask. Can
		1610	be used to suppress input and output handling to the pty/tty. See the
		1611	description of C<< urxvt::timer->events >>. Make sure to always restore
		1612	the previous value.
		1613
		1614	=item $fd = $term->pty_fd
		1615
		1616	Returns the master file descriptor for the pty in use, or C<-1> if no pty
		1617	is used.
		1618
		1619	=item $windowid = $term->parent
		1620
		1621	Return the window id of the toplevel window.
		1622
		1623	=item $windowid = $term->vt
		1624
		1625	Return the window id of the terminal window.
		1626
		1627	=item $term->vt_emask_add ($x_event_mask)
		1628
		1629	Adds the specified events to the vt event mask. Useful e.g. when you want
		1630	to receive pointer events all the times:
		1631
		1632	$term->vt_emask_add (urxvt::PointerMotionMask);
		1633
		1634	=item $term->set_urgency ($set)
		1635
		1636	Enable/disable the urgency hint on the toplevel window.
		1637
		1638	=item $term->focus_in
		1639
		1640	=item $term->focus_out
		1641
		1642	=item $term->key_press ($state, $keycode[, $time])
		1643
		1644	=item $term->key_release ($state, $keycode[, $time])
		1645
		1646	Deliver various fake events to to terminal.
		1647
		1648	=item $window_width = $term->width
		1649
		1650	=item $window_height = $term->height
		1651
		1652	=item $font_width = $term->fwidth
		1653
		1654	=item $font_height = $term->fheight
		1655
		1656	=item $font_ascent = $term->fbase
		1657
562	=item $nrow = $term->nrow	1658	=item $terminal_rows = $term->nrow
563		1659
564	=item $ncol = $term->ncol	1660	=item $terminal_columns = $term->ncol
565		1661
566	Return the number of rows/columns of the terminal window (i.e. as	1662	=item $has_focus = $term->focus
567	specified by C<-geometry>, excluding any scrollback).
568		1663
		1664	=item $is_mapped = $term->mapped
		1665
		1666	=item $max_scrollback = $term->saveLines
		1667
		1668	=item $nrow_plus_saveLines = $term->total_rows
		1669
		1670	=item $topmost_scrollback_row = $term->top_row
		1671
		1672	Return various integers describing terminal characteristics.
		1673
		1674	=item $x_display = $term->display_id
		1675
		1676	Return the DISPLAY used by rxvt-unicode.
		1677
		1678	=item $lc_ctype = $term->locale
		1679
		1680	Returns the LC_CTYPE category string used by this rxvt-unicode.
		1681
569	=item $nsaved = $term->nsaved	1682	=item $env = $term->env
570		1683
571	Returns the number of lines in the scrollback buffer.	1684	Returns a copy of the environment in effect for the terminal as a hashref
		1685	similar to C<\%ENV>.
		1686
		1687	=item @envv = $term->envv
		1688
		1689	Returns the environment as array of strings of the form C<VAR=VALUE>.
		1690
		1691	=item @argv = $term->argv
		1692
		1693	Return the argument vector as this terminal, similar to @ARGV, but
		1694	includes the program name as first element.
		1695
		1696	=cut
		1697
		1698	sub env {
		1699	+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), $_[0]->envv }
		1700	}
		1701
		1702	=item $modifiermask = $term->ModLevel3Mask
		1703
		1704	=item $modifiermask = $term->ModMetaMask
		1705
		1706	=item $modifiermask = $term->ModNumLockMask
		1707
		1708	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
		1709	AltGr), the meta key (often Alt) and the num lock key, if applicable.
		1710
		1711	=item $screen = $term->current_screen
		1712
		1713	Returns the currently displayed screen (0 primary, 1 secondary).
		1714
		1715	=item $cursor_is_hidden = $term->hidden_cursor
		1716
		1717	Returns whether the cursor is currently hidden or not.
572		1718
573	=item $view_start = $term->view_start ([$newvalue])	1719	=item $view_start = $term->view_start ([$newvalue])
574		1720
575	Returns the negative row number of the topmost line. Minimum value is	1721	Returns the row number of the topmost displayed line. Maximum value is
576	C<0>, which displays the normal terminal contents. Larger values scroll	1722	C<0>, which displays the normal terminal contents. Lower values scroll
577	this many lines into the scrollback buffer.	1723	this many lines into the scrollback buffer.
578		1724
579	=item $term->want_refresh	1725	=item $term->want_refresh
580		1726
581	Requests a screen refresh. At the next opportunity, rxvt-unicode will	1727	Requests a screen refresh. At the next opportunity, rxvt-unicode will
…		…
584		1730
585	Used after changing terminal contents to display them.	1731	Used after changing terminal contents to display them.
586		1732
587	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])	1733	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
588		1734
589	Returns the text of the entire row with number C<$row_number>. Row C<0>	1735	Returns the text of the entire row with number C<$row_number>. Row C<< $term->top_row >>
590	is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost	1736	is the topmost terminal line, row C<< $term->nrow-1 >> is the bottommost
591	terminal line. The scrollback buffer starts at line C<-1> and extends to
592	line C<< -$term->nsaved >>. Nothing will be returned if a nonexistent line	1737	terminal line. Nothing will be returned if a nonexistent line
593	is requested.	1738	is requested.
594		1739
595	If C<$new_text> is specified, it will replace characters in the current	1740	If C<$new_text> is specified, it will replace characters in the current
596	line, starting at column C<$start_col> (default C<0>), which is useful	1741	line, starting at column C<$start_col> (default C<0>), which is useful
597	to replace only parts of a line. The font index in the rendition will	1742	to replace only parts of a line. The font index in the rendition will
598	automatically be updated.	1743	automatically be updated.
599		1744
600	C<$text> is in a special encoding: tabs and wide characters that use more	1745	C<$text> is in a special encoding: tabs and wide characters that use more
601	than one cell when displayed are padded with urxvt::NOCHAR characters	1746	than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
602	(C<chr 65535>). Characters with combining characters and other characters	1747	characters. Characters with combining characters and other characters that
603	that do not fit into the normal tetx encoding will be replaced with	1748	do not fit into the normal text encoding will be replaced with characters
604	characters in the private use area.	1749	in the private use area.
605		1750
606	You have to obey this encoding when changing text. The advantage is	1751	You have to obey this encoding when changing text. The advantage is
607	that C<substr> and similar functions work on screen cells and not on	1752	that C<substr> and similar functions work on screen cells and not on
608	characters.	1753	characters.
609		1754
…		…
639	about the logical line that row C<$row_number> is part of. It supports the	1784	about the logical line that row C<$row_number> is part of. It supports the
640	following methods:	1785	following methods:
641		1786
642	=over 4	1787	=over 4
643		1788
644	=item $text = $line->t	1789	=item $text = $line->t ([$new_text])
645		1790
646	Returns the full text of the line, similar to C<ROW_t>	1791	Returns or replaces the full text of the line, similar to C<ROW_t>
647		1792
648	=item $rend = $line->r	1793	=item $rend = $line->r ([$new_rend])
649		1794
650	Returns the full rendition array of the line, similar to C<ROW_r>	1795	Returns or replaces the full rendition array of the line, similar to C<ROW_r>
651		1796
652	=item $length = $line->l	1797	=item $length = $line->l
653		1798
654	Returns the length of the line in cells, similar to C<ROW_l>.	1799	Returns the length of the line in cells, similar to C<ROW_l>.
655		1800
…		…
660	Return the row number of the first/last row of the line, respectively.	1805	Return the row number of the first/last row of the line, respectively.
661		1806
662	=item $offset = $line->offset_of ($row, $col)	1807	=item $offset = $line->offset_of ($row, $col)
663		1808
664	Returns the character offset of the given row|col pair within the logical	1809	Returns the character offset of the given row|col pair within the logical
665	line.	1810	line. Works for rows outside the line, too, and returns corresponding
		1811	offsets outside the string.
666		1812
667	=item ($row, $col) = $line->coord_of ($offset)	1813	=item ($row, $col) = $line->coord_of ($offset)
668		1814
669	Translates a string offset into terminal coordinates again.	1815	Translates a string offset into terminal coordinates again.
670		1816
671	=back	1817	=back
672		1818
673	=cut	1819	=cut
674		1820
675	sub urxvt::term::line {	1821	sub line {
676	my ($self, $row) = @_;	1822	my ($self, $row) = @_;
677		1823
678	my $maxrow = $self->nrow - 1;	1824	my $maxrow = $self->nrow - 1;
679		1825
680	my ($beg, $end) = ($row, $row);	1826	my ($beg, $end) = ($row, $row);
…		…
684		1830
685	bless {	1831	bless {
686	term => $self,	1832	term => $self,
687	beg => $beg,	1833	beg => $beg,
688	end => $end,	1834	end => $end,
		1835	ncol => $self->ncol,
689	len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),	1836	len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),
690	}, urxvt::line::	1837	}, urxvt::line::
691	}	1838	}
692		1839
693	sub urxvt::line::t {	1840	sub urxvt::line::t {
694	my ($self) = @_;	1841	my ($self) = @_;
695		1842
		1843	if (@_ > 1)
		1844	{
		1845	$self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
		1846	for $self->{beg} .. $self->{end};
		1847	}
		1848
		1849	defined wantarray &&
696	substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),	1850	substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),
697	0, $self->{len}	1851	0, $self->{len}
698	}	1852	}
699		1853
700	sub urxvt::line::r {	1854	sub urxvt::line::r {
701	my ($self) = @_;	1855	my ($self) = @_;
702		1856
		1857	if (@_ > 1)
		1858	{
		1859	$self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
		1860	for $self->{beg} .. $self->{end};
		1861	}
		1862
		1863	if (defined wantarray) {
703	my $rend = [	1864	my $rend = [
704	map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}	1865	map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}
705	];	1866	];
706	$#$rend = $self->{len} - 1;	1867	$#$rend = $self->{len} - 1;
707	$rend	1868	return $rend;
		1869	}
		1870
		1871	()
708	}	1872	}
709		1873
710	sub urxvt::line::beg { $_[0]{beg} }	1874	sub urxvt::line::beg { $_[0]{beg} }
711	sub urxvt::line::end { $_[0]{end} }	1875	sub urxvt::line::end { $_[0]{end} }
712	sub urxvt::line::l { $_[0]{len} }	1876	sub urxvt::line::l { $_[0]{len} }
713		1877
714	sub urxvt::line::offset_of {	1878	sub urxvt::line::offset_of {
715	my ($self, $row, $col) = @_;	1879	my ($self, $row, $col) = @_;
716		1880
717	($row - $self->{beg}) * $self->{term}->ncol + $col	1881	($row - $self->{beg}) * $self->{ncol} + $col
718	}	1882	}
719		1883
720	sub urxvt::line::coord_of {	1884	sub urxvt::line::coord_of {
721	my ($self, $offset) = @_;	1885	my ($self, $offset) = @_;
722		1886
723	use integer;	1887	use integer;
724		1888
725	(	1889	(
726	$offset / $self->{term}->ncol + $self->{beg},	1890	$offset / $self->{ncol} + $self->{beg},
727	$offset % $self->{term}->ncol	1891	$offset % $self->{ncol}
728	)	1892	)
729	}	1893	}
730		1894
731	=item ($row, $col) = $line->coord_of ($offset)
732	=item $text = $term->special_encode $string	1895	=item $text = $term->special_encode $string
733		1896
734	Converts a perl string into the special encoding used by rxvt-unicode,	1897	Converts a perl string into the special encoding used by rxvt-unicode,
735	where one character corresponds to one screen cell. See	1898	where one character corresponds to one screen cell. See
736	C<< $term->ROW_t >> for details.	1899	C<< $term->ROW_t >> for details.
737		1900
738	=item $string = $term->special_decode $text	1901	=item $string = $term->special_decode $text
739		1902
740	Converts rxvt-unicodes text reprsentation into a perl string. See	1903	Converts rxvt-unicodes text representation into a perl string. See
741	C<< $term->ROW_t >> for details.	1904	C<< $term->ROW_t >> for details.
742		1905
		1906	=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
		1907
		1908	=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
		1909
		1910	Register/unregister a synchronous button grab. See the XGrabButton
		1911	manpage.
		1912
		1913	=item $success = $term->grab ($eventtime[, $sync])
		1914
		1915	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
		1916	synchronous (C<$sync> is true). Also remembers the grab timestamp.
		1917
		1918	=item $term->allow_events_async
		1919
		1920	Calls XAllowEvents with AsyncBoth for the most recent grab.
		1921
		1922	=item $term->allow_events_sync
		1923
		1924	Calls XAllowEvents with SyncBoth for the most recent grab.
		1925
		1926	=item $term->allow_events_replay
		1927
		1928	Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
		1929	recent grab.
		1930
		1931	=item $term->ungrab
		1932
		1933	Calls XUngrabPointer and XUngrabKeyboard for the most recent grab. Is called automatically on
		1934	evaluation errors, as it is better to lose the grab in the error case as
		1935	the session.
		1936
		1937	=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
		1938
		1939	=item $atom_name = $term->XGetAtomName ($atom)
		1940
		1941	=item @atoms = $term->XListProperties ($window)
		1942
		1943	=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
		1944
		1945	=item $term->XChangeProperty ($window, $property, $type, $format, $octets)
		1946
		1947	=item $term->XDeleteProperty ($window, $property)
		1948
		1949	=item $window = $term->DefaultRootWindow
		1950
		1951	=item $term->XReparentWindow ($window, $parent, [$x, $y])
		1952
		1953	=item $term->XMapWindow ($window)
		1954
		1955	=item $term->XUnmapWindow ($window)
		1956
		1957	=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
		1958
		1959	=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
		1960
		1961	=item $term->XChangeInput ($window, $add_events[, $del_events])
		1962
		1963	=item $keysym = $term->XStringToKeysym ($string)
		1964
		1965	=item $string = $term->XKeysymToString ($keysym)
		1966
		1967	Various X or X-related functions. The C<$term> object only serves as
		1968	the source of the display, otherwise those functions map more-or-less
		1969	directly onto the X functions of the same name.
		1970
743	=back	1971	=back
		1972
		1973	=cut
		1974
		1975	package urxvt::popup;
		1976
		1977	=head2 The C<urxvt::popup> Class
		1978
		1979	=over 4
		1980
		1981	=cut
		1982
		1983	sub add_item {
		1984	my ($self, $item) = @_;
		1985
		1986	$item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal};
		1987	$item->{rend}{hover} = "\x1b[0;30;46m" unless exists $item->{rend}{hover};
		1988	$item->{rend}{active} = "\x1b[m" unless exists $item->{rend}{active};
		1989
		1990	$item->{render} ||= sub { $_[0]{text} };
		1991
		1992	push @{ $self->{item} }, $item;
		1993	}
		1994
		1995	=item $popup->add_title ($title)
		1996
		1997	Adds a non-clickable title to the popup.
		1998
		1999	=cut
		2000
		2001	sub add_title {
		2002	my ($self, $title) = @_;
		2003
		2004	$self->add_item ({
		2005	rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
		2006	text => $title,
		2007	activate => sub { },
		2008	});
		2009	}
		2010
		2011	=item $popup->add_separator ([$sepchr])
		2012
		2013	Creates a separator, optionally using the character given as C<$sepchr>.
		2014
		2015	=cut
		2016
		2017	sub add_separator {
		2018	my ($self, $sep) = @_;
		2019
		2020	$sep ||= "=";
		2021
		2022	$self->add_item ({
		2023	rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
		2024	text => "",
		2025	render => sub { $sep x $self->{term}->ncol },
		2026	activate => sub { },
		2027	});
		2028	}
		2029
		2030	=item $popup->add_button ($text, $cb)
		2031
		2032	Adds a clickable button to the popup. C<$cb> is called whenever it is
		2033	selected.
		2034
		2035	=cut
		2036
		2037	sub add_button {
		2038	my ($self, $text, $cb) = @_;
		2039
		2040	$self->add_item ({ type => "button", text => $text, activate => $cb});
		2041	}
		2042
		2043	=item $popup->add_toggle ($text, $initial_value, $cb)
		2044
		2045	Adds a toggle/checkbox item to the popup. The callback gets called
		2046	whenever it gets toggled, with a boolean indicating its new value as its
		2047	first argument.
		2048
		2049	=cut
		2050
		2051	sub add_toggle {
		2052	my ($self, $text, $value, $cb) = @_;
		2053
		2054	my $item; $item = {
		2055	type => "button",
		2056	text => " $text",
		2057	value => $value,
		2058	render => sub { ($_[0]{value} ? "* " : " ") . $text },
		2059	activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
		2060	};
		2061
		2062	$self->add_item ($item);
		2063	}
		2064
		2065	=item $popup->show
		2066
		2067	Displays the popup (which is initially hidden).
		2068
		2069	=cut
		2070
		2071	sub show {
		2072	my ($self) = @_;
		2073
		2074	local $urxvt::popup::self = $self;
		2075
		2076	my $env = $self->{term}->env;
		2077	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
		2078	delete $env->{LC_ALL};
		2079	$env->{LC_CTYPE} = $self->{term}->locale;
		2080
		2081	my $term = urxvt::term->new (
		2082	$env, "popup",
		2083	"--perl-lib" => "", "--perl-ext-common" => "",
		2084	"-pty-fd" => -1, "-sl" => 0,
		2085	"-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
		2086	"--transient-for" => $self->{term}->parent,
		2087	"-display" => $self->{term}->display_id,
		2088	"-pe" => "urxvt-popup",
		2089	) or die "unable to create popup window\n";
		2090
		2091	unless (delete $term->{urxvt_popup_init_done}) {
		2092	$term->ungrab;
		2093	$term->destroy;
		2094	die "unable to initialise popup window\n";
		2095	}
		2096	}
		2097
		2098	sub DESTROY {
		2099	my ($self) = @_;
		2100
		2101	delete $self->{term}{_destroy}{$self};
		2102	$self->{term}->ungrab;
		2103	}
		2104
		2105	=back
		2106
		2107	=cut
		2108
		2109	package urxvt::watcher;
744		2110
745	=head2 The C<urxvt::timer> Class	2111	=head2 The C<urxvt::timer> Class
746		2112
747	This class implements timer watchers/events. Time is represented as a	2113	This class implements timer watchers/events. Time is represented as a
748	fractional number of seconds since the epoch. Example:	2114	fractional number of seconds since the epoch. Example:
…		…
752	->new	2118	->new
753	->interval (1)	2119	->interval (1)
754	->cb (sub {	2120	->cb (sub {
755	$term->{overlay}->set (0, 0,	2121	$term->{overlay}->set (0, 0,
756	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);	2122	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
757	});	2123	});
758		2124
759	=over 4	2125	=over 4
760		2126
761	=item $timer = new urxvt::timer	2127	=item $timer = new urxvt::timer
762		2128
…		…
765		2131
766	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })	2132	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })
767		2133
768	Set the callback to be called when the timer triggers.	2134	Set the callback to be called when the timer triggers.
769		2135
770	=item $tstamp = $timer->at
771
772	Return the time this watcher will fire next.
773
774	=item $timer = $timer->set ($tstamp)	2136	=item $timer = $timer->set ($tstamp[, $interval])
775		2137
776	Set the time the event is generated to $tstamp.	2138	Set the time the event is generated to $tstamp (and optionally specifies a
		2139	new $interval).
777		2140
778	=item $timer = $timer->interval ($interval)	2141	=item $timer = $timer->interval ($interval)
779		2142
780	Normally (and when C<$interval> is C<0>), the timer will automatically	2143	By default (and when C<$interval> is C<0>), the timer will automatically
781	stop after it has fired once. If C<$interval> is non-zero, then the timer	2144	stop after it has fired once. If C<$interval> is non-zero, then the timer
782	is automatically rescheduled at the given intervals.	2145	is automatically rescheduled at the given intervals.
783		2146
784	=item $timer = $timer->start	2147	=item $timer = $timer->start
785		2148
786	Start the timer.	2149	Start the timer.
787		2150
788	=item $timer = $timer->start ($tstamp)	2151	=item $timer = $timer->start ($tstamp[, $interval])
789		2152
790	Set the event trigger time to C<$tstamp> and start the timer.	2153	Set the event trigger time to C<$tstamp> and start the timer. Optionally
		2154	also replaces the interval.
		2155
		2156	=item $timer = $timer->after ($delay[, $interval])
		2157
		2158	Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
791		2159
792	=item $timer = $timer->stop	2160	=item $timer = $timer->stop
793		2161
794	Stop the timer.	2162	Stop the timer.
795		2163
…		…
801		2169
802	$term->{socket} = ...	2170	$term->{socket} = ...
803	$term->{iow} = urxvt::iow	2171	$term->{iow} = urxvt::iow
804	->new	2172	->new
805	->fd (fileno $term->{socket})	2173	->fd (fileno $term->{socket})
806	->events (1) # wait for read data	2174	->events (urxvt::EV_READ)
807	->start	2175	->start
808	->cb (sub {	2176	->cb (sub {
809	my ($iow, $revents) = @_;	2177	my ($iow, $revents) = @_;
810	# $revents must be 1 here, no need to check	2178	# $revents must be 1 here, no need to check
811	sysread $term->{socket}, my $buf, 8192	2179	sysread $term->{socket}, my $buf, 8192
…		…
824	Set the callback to be called when io events are triggered. C<$reventmask>	2192	Set the callback to be called when io events are triggered. C<$reventmask>
825	is a bitset as described in the C<events> method.	2193	is a bitset as described in the C<events> method.
826		2194
827	=item $iow = $iow->fd ($fd)	2195	=item $iow = $iow->fd ($fd)
828		2196
829	Set the filedescriptor (not handle) to watch.	2197	Set the file descriptor (not handle) to watch.
830		2198
831	=item $iow = $iow->events ($eventmask)	2199	=item $iow = $iow->events ($eventmask)
832		2200
833	Set the event mask to watch. Bit #0 (value C<1>) enables watching for read	2201	Set the event mask to watch. The only allowed values are
834	data, Bit #1 (value C<2>) enables watching for write data.	2202	C<urxvt::EV_READ> and C<urxvt::EV_WRITE>, which might be ORed
		2203	together, or C<urxvt::EV_NONE>.
835		2204
836	=item $iow = $iow->start	2205	=item $iow = $iow->start
837		2206
838	Start watching for requested events on the given handle.	2207	Start watching for requested events on the given handle.
839		2208
840	=item $iow = $iow->stop	2209	=item $iow = $iow->stop
841		2210
842	Stop watching for events on the given filehandle.	2211	Stop watching for events on the given file handle.
		2212
		2213	=back
		2214
		2215	=head2 The C<urxvt::iw> Class
		2216
		2217	This class implements idle watchers, that get called automatically when
		2218	the process is idle. They should return as fast as possible, after doing
		2219	some useful work.
		2220
		2221	=over 4
		2222
		2223	=item $iw = new urxvt::iw
		2224
		2225	Create a new idle watcher object in stopped state.
		2226
		2227	=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
		2228
		2229	Set the callback to be called when the watcher triggers.
		2230
		2231	=item $timer = $timer->start
		2232
		2233	Start the watcher.
		2234
		2235	=item $timer = $timer->stop
		2236
		2237	Stop the watcher.
		2238
		2239	=back
		2240
		2241	=head2 The C<urxvt::pw> Class
		2242
		2243	This class implements process watchers. They create an event whenever a
		2244	process exits, after which they stop automatically.
		2245
		2246	my $pid = fork;
		2247	...
		2248	$term->{pw} = urxvt::pw
		2249	->new
		2250	->start ($pid)
		2251	->cb (sub {
		2252	my ($pw, $exit_status) = @_;
		2253	...
		2254	});
		2255
		2256	=over 4
		2257
		2258	=item $pw = new urxvt::pw
		2259
		2260	Create a new process watcher in stopped state.
		2261
		2262	=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
		2263
		2264	Set the callback to be called when the timer triggers.
		2265
		2266	=item $pw = $timer->start ($pid)
		2267
		2268	Tells the watcher to start watching for process C<$pid>.
		2269
		2270	=item $pw = $pw->stop
		2271
		2272	Stop the watcher.
843		2273
844	=back	2274	=back
845		2275
846	=head1 ENVIRONMENT	2276	=head1 ENVIRONMENT
847		2277
…		…
850	This variable controls the verbosity level of the perl extension. Higher	2280	This variable controls the verbosity level of the perl extension. Higher
851	numbers indicate more verbose output.	2281	numbers indicate more verbose output.
852		2282
853	=over 4	2283	=over 4
854		2284
855	=item =0 - only fatal messages	2285	=item == 0 - fatal messages
856		2286
857	=item =3 - script loading and management	2287	=item >= 3 - script loading and management
858		2288
859	=item =10 - all events received	2289	=item >=10 - all called hooks
		2290
		2291	=item >=11 - hook return values
860		2292
861	=back	2293	=back
862		2294
863	=head1 AUTHOR	2295	=head1 AUTHOR
864		2296
865	Marc Lehmann <pcg@goof.com>	2297	Marc Lehmann <schmorp@schmorp.de>
866	http://software.schmorp.de/pkg/rxvt-unicode	2298	http://software.schmorp.de/pkg/rxvt-unicode
867		2299
868	=cut	2300	=cut
869		2301
870	1	2302	1
		2303
		2304	# vim: sw=3:

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