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Revision 1.78 by root, Wed Jan 11 01:01:52 2006 UTC vs.
Revision 1.213 by root, Wed Jun 6 15:09:49 2012 UTC

…		…
17		17
18	@@RXVT_NAME@@ --perl-lib $HOME -pe grab_test	18	@@RXVT_NAME@@ --perl-lib $HOME -pe grab_test
19		19
20	=head1 DESCRIPTION	20	=head1 DESCRIPTION
21		21
22	Everytime a terminal object gets created, extension scripts specified via	22	Every time a terminal object gets created, extension scripts specified via
23	the C<perl> resource are loaded and associated with it.	23	the C<perl> resource are loaded and associated with it.
24		24
25	Scripts are compiled in a 'use strict' and 'use utf8' environment, and	25	Scripts are compiled in a 'use strict' and 'use utf8' environment, and
26	thus must be encoded as UTF-8.	26	thus must be encoded as UTF-8.
27		27
28	Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where	28	Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where
29	scripts will be shared (but not enabled) for all terminals.	29	scripts will be shared (but not enabled) for all terminals.
30		30
		31	You can disable the embedded perl interpreter by setting both "perl-ext"
		32	and "perl-ext-common" resources to the empty string.
		33
31	=head1 PREPACKAGED EXTENSIONS	34	=head1 PREPACKAGED EXTENSIONS
32		35
33	This section describes the extensions delivered with this release. You can	36	This section describes the extensions delivered with this release. You can
34	find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.	37	find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.
35		38
36	You can activate them like this:	39	You can activate them like this:
37		40
38	@@RXVT_NAME@@ -pe <extensionname>	41	@@RXVT_NAME@@ -pe <extensionname>
39		42
		43	Or by adding them to the resource for extensions loaded by default:
		44
		45	URxvt.perl-ext-common: default,selection-autotransform
		46
40	=over 4	47	=over 4
41		48
42	=item selection (enabled by default)	49	=item selection (enabled by default)
43		50
44	(More) intelligent selection. This extension tries to be more intelligent	51	(More) intelligent selection. This extension tries to be more intelligent
45	when the user extends selections (double-click). Right now, it tries to	52	when the user extends selections (double-click and further clicks). Right
46	select urls and complete shell-quoted arguments, which is very convenient,	53	now, it tries to select words, urls and complete shell-quoted
47	too, if your F<ls> supports C<--quoting-style=shell>.	54	arguments, which is very convenient, too, if your F<ls> supports
		55	C<--quoting-style=shell>.
48		56
		57	A double-click usually selects the word under the cursor, further clicks
		58	will enlarge the selection.
		59
		60	The selection works by trying to match a number of regexes and displaying
		61	them in increasing order of length. You can add your own regexes by
		62	specifying resources of the form:
		63
		64	URxvt.selection.pattern-0: perl-regex
		65	URxvt.selection.pattern-1: perl-regex
		66	...
		67
		68	The index number (0, 1...) must not have any holes, and each regex must
		69	contain at least one pair of capturing parentheses, which will be used for
		70	the match. For example, the following adds a regex that matches everything
		71	between two vertical bars:
		72
		73	URxvt.selection.pattern-0: \\|([^|]+)\\|
		74
		75	Another example: Programs I use often output "absolute path: " at the
		76	beginning of a line when they process multiple files. The following
		77	pattern matches the filename (note, there is a single space at the very
		78	end):
		79
		80	URxvt.selection.pattern-0: ^(/[^:]+):\
		81
		82	You can look at the source of the selection extension to see more
		83	interesting uses, such as parsing a line from beginning to end.
		84
49	It also offers the following bindable keyboard command:	85	This extension also offers following bindable keyboard commands:
50		86
51	=over 4	87	=over 4
52		88
53	=item rot13	89	=item rot13
54		90
…		…
61	=item option-popup (enabled by default)	97	=item option-popup (enabled by default)
62		98
63	Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at	99	Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at
64	runtime.	100	runtime.
65		101
		102	Other extensions can extend this popup menu by pushing a code reference
		103	onto C<@{ $term->{option_popup_hook} }>, which gets called whenever the
		104	popup is being displayed.
		105
		106	Its sole argument is the popup menu, which can be modified. It should
		107	either return nothing or a string, the initial boolean value and a code
		108	reference. The string will be used as button text and the code reference
		109	will be called when the toggle changes, with the new boolean value as
		110	first argument.
		111
		112	The following will add an entry C<myoption> that changes
		113	C<< $self->{myoption} >>:
		114
		115	push @{ $self->{term}{option_popup_hook} }, sub {
		116	("my option" => $myoption, sub { $self->{myoption} = $_[0] })
		117	};
		118
66	=item selection-popup (enabled by default)	119	=item selection-popup (enabled by default)
67		120
68	Binds a popup menu to Ctrl-Button3 that lets you convert the selection	121	Binds a popup menu to Ctrl-Button3 that lets you convert the selection
69	text into various other formats/action (such as uri unescaping, perl	122	text into various other formats/action (such as uri unescaping, perl
70	evalution, web-browser starting etc.), depending on content.	123	evaluation, web-browser starting etc.), depending on content.
		124
		125	Other extensions can extend this popup menu by pushing a code reference
		126	onto C<@{ $term->{selection_popup_hook} }>, which gets called whenever the
		127	popup is being displayed.
		128
		129	Its sole argument is the popup menu, which can be modified. The selection
		130	is in C<$_>, which can be used to decide whether to add something or not.
		131	It should either return nothing or a string and a code reference. The
		132	string will be used as button text and the code reference will be called
		133	when the button gets activated and should transform C<$_>.
		134
		135	The following will add an entry C<a to b> that transforms all C<a>s in
		136	the selection to C<b>s, but only if the selection currently contains any
		137	C<a>s:
		138
		139	push @{ $self->{term}{selection_popup_hook} }, sub {
		140	/a/ ? ("a to b" => sub { s/a/b/g }
		141	: ()
		142	};
71		143
72	=item searchable-scrollback<hotkey> (enabled by default)	144	=item searchable-scrollback<hotkey> (enabled by default)
73		145
74	Adds regex search functionality to the scrollback buffer, triggered	146	Adds regex search functionality to the scrollback buffer, triggered
75	by a hotkey (default: C<M-s>). When in search mode, normal terminal	147	by a hotkey (default: C<M-s>). While in search mode, normal terminal
76	input/output is suspended.	148	input/output is suspended and a regex is displayed at the bottom of the
		149	screen.
77		150
78	C</> starts an incremental regex search, C<n> searches further, C<p> or	151	Inputting characters appends them to the regex and continues incremental
79	C<N> jump to the previous match, C<G> jumps to the bottom and clears the	152	search. C<BackSpace> removes a character from the regex, C<Up> and C<Down>
80	history, C<enter> leaves search mode at the current position and C<escape>	153	search upwards/downwards in the scrollback buffer, C<End> jumps to the
81	returns to the original position.	154	bottom. C<Escape> leaves search mode and returns to the point where search
		155	was started, while C<Enter> or C<Return> stay at the current position and
		156	additionally stores the first match in the current line into the primary
		157	selection if the C<Shift> modifier is active.
82		158
83	=item digital-clock	159	The regex defaults to "(?i)", resulting in a case-insensitive search. To
		160	get a case-sensitive search you can delete this prefix using C<BackSpace>
		161	or simply use an uppercase character which removes the "(?i)" prefix.
84		162
85	Displays a digital clock using the built-in overlay.	163	See L<perlre> for more info about perl regular expression syntax.
86		164
87	=item mark-urls	165	=item readline (enabled by default)
88		166
		167	A support package that tries to make editing with readline easier. At
		168	the moment, it reacts to clicking shift-left mouse button by trying to
		169	move the text cursor to this position. It does so by generating as many
		170	cursor-left or cursor-right keypresses as required (this only works
		171	for programs that correctly support wide characters).
		172
		173	To avoid too many false positives, this is only done when:
		174
		175	=over 4
		176
		177	=item - the tty is in ICANON state.
		178
		179	=item - the text cursor is visible.
		180
		181	=item - the primary screen is currently being displayed.
		182
		183	=item - the mouse is on the same (multi-row-) line as the text cursor.
		184
		185	=back
		186
		187	The normal selection mechanism isn't disabled, so quick successive clicks
		188	might interfere with selection creation in harmless ways.
		189
		190	=item selection-autotransform
		191
		192	This selection allows you to do automatic transforms on a selection
		193	whenever a selection is made.
		194
		195	It works by specifying perl snippets (most useful is a single C<s///>
		196	operator) that modify C<$_> as resources:
		197
		198	URxvt.selection-autotransform.0: transform
		199	URxvt.selection-autotransform.1: transform
		200	...
		201
		202	For example, the following will transform selections of the form
		203	C<filename:number>, often seen in compiler messages, into C<vi +$filename
		204	$word>:
		205
		206	URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
		207
		208	And this example matches the same,but replaces it with vi-commands you can
		209	paste directly into your (vi :) editor:
		210
		211	URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
		212
		213	Of course, this can be modified to suit your needs and your editor :)
		214
		215	To expand the example above to typical perl error messages ("XXX at
		216	FILENAME line YYY."), you need a slightly more elaborate solution:
		217
		218	URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
		219	URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
		220
		221	The first line tells the selection code to treat the unchanging part of
		222	every error message as a selection pattern, and the second line transforms
		223	the message into vi commands to load the file.
		224
		225	=item tabbed
		226
		227	This transforms the terminal into a tabbar with additional terminals, that
		228	is, it implements what is commonly referred to as "tabbed terminal". The topmost line
		229	displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
		230	button per tab.
		231
		232	Clicking a button will activate that tab. Pressing B<Shift-Left> and
		233	B<Shift-Right> will switch to the tab left or right of the current one,
		234	while B<Shift-Down> creates a new tab.
		235
		236	The tabbar itself can be configured similarly to a normal terminal, but
		237	with a resource class of C<URxvt.tabbed>. In addition, it supports the
		238	following four resources (shown with defaults):
		239
		240	URxvt.tabbed.tabbar-fg: <colour-index, default 3>
		241	URxvt.tabbed.tabbar-bg: <colour-index, default 0>
		242	URxvt.tabbed.tab-fg: <colour-index, default 0>
		243	URxvt.tabbed.tab-bg: <colour-index, default 1>
		244
		245	See I<COLOR AND GRAPHICS> in the @@RXVT_NAME@@(1) manpage for valid
		246	indices.
		247
		248	=item matcher
		249
89	Uses per-line display filtering (C<on_line_update>) to underline urls.	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.
90		315
91	=item block-graphics-to-ascii	316	=item block-graphics-to-ascii
92		317
93	A not very useful example of filtering all text output to the terminal,	318	A not very useful example of filtering all text output to the terminal
94	by replacing all line-drawing characters (U+2500 .. U+259F) by a	319	by replacing all line-drawing characters (U+2500 .. U+259F) by a
95	similar-looking ascii character.	320	similar-looking ascii character.
		321
		322	=item digital-clock
		323
		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.
96		393
97	=item example-refresh-hooks	394	=item example-refresh-hooks
98		395
99	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
100	window. Illustrates overwriting the refresh callbacks to create your own	397	window. Illustrates overwriting the refresh callbacks to create your own
101	overlays or changes.	398	overlays or changes.
		399
		400	=item confirm-paste
		401
		402	Displays a confirmation dialog when a paste containing at least a full
		403	line is detected.
		404
		405	=item bell-command
		406
		407	Runs the command specified by the C<URxvt.bell-command> resource when
		408	a bell event occurs. For example, the following pops up a notification
		409	bubble with the text "Beep, Beep" using notify-send:
		410
		411	URxvt.bell-command: notify-send "Beep, Beep"
102		412
103	=back	413	=back
104		414
105	=head1 API DOCUMENTATION	415	=head1 API DOCUMENTATION
106		416
…		…
122		432
123	=over 4	433	=over 4
124		434
125	=item $text	435	=item $text
126		436
127	Rxvt-unicodes special way of encoding text, where one "unicode" character	437	Rxvt-unicode's special way of encoding text, where one "unicode" character
128	always represents one screen cell. See L<ROW_t> for a discussion of this format.	438	always represents one screen cell. See L<ROW_t> for a discussion of this format.
129		439
130	=item $string	440	=item $string
131		441
132	A perl text string, with an emphasis on I<text>. It can store all unicode	442	A perl text string, with an emphasis on I<text>. It can store all unicode
…		…
136	=item $octets	446	=item $octets
137		447
138	Either binary data or - more common - a text string encoded in a	448	Either binary data or - more common - a text string encoded in a
139	locale-specific way.	449	locale-specific way.
140		450
		451	=item $keysym
		452
		453	an integer that is a valid X11 keysym code. You can convert a string
		454	into a keysym and viceversa by using C<XStringToKeysym> and
		455	C<XKeysymToString>.
		456
141	=back	457	=back
142		458
143	=head2 Extension Objects	459	=head2 Extension Objects
144		460
145	Very perl extension is a perl class. A separate perl object is created	461	Every perl extension is a perl class. A separate perl object is created
146	for each terminal and each extension and passed as the first parameter to	462	for each terminal, and each terminal has its own set of extension objects,
147	hooks. So extensions can use their C<$self> object without having to think	463	which are passed as the first parameter to hooks. So extensions can use
148	about other extensions, with the exception of methods and members that	464	their C<$self> object without having to think about clashes with other
		465	extensions or other terminals, with the exception of methods and members
149	begin with an underscore character C<_>: these are reserved for internal	466	that begin with an underscore character C<_>: these are reserved for
150	use.	467	internal use.
151		468
152	Although it isn't a C<urxvt::term> object, you can call all methods of the	469	Although it isn't a C<urxvt::term> object, you can call all methods of the
153	C<urxvt::term> class on this object.	470	C<urxvt::term> class on this object.
154		471
155	It has the following methods and data members:	472	It has the following methods and data members:
…		…
176	=head2 Hooks	493	=head2 Hooks
177		494
178	The following subroutines can be declared in extension files, and will be	495	The following subroutines can be declared in extension files, and will be
179	called whenever the relevant event happens.	496	called whenever the relevant event happens.
180		497
181	The first argument passed to them is an extension oject as described in	498	The first argument passed to them is an extension object as described in
182	the in the C<Extension Objects> section.	499	the in the C<Extension Objects> section.
183		500
184	B<All> of these hooks must return a boolean value. If it is true, then the	501	B<All> of these hooks must return a boolean value. If any of the called
185	event counts as being I<consumed>, and the invocation of other hooks is	502	hooks returns true, then the event counts as being I<consumed>, and the
186	skipped, and the relevant action might not be carried out by the C++ code.	503	relevant action might not be carried out by the C++ code.
187		504
188	I<< When in doubt, return a false value (preferably C<()>). >>	505	I<< When in doubt, return a false value (preferably C<()>). >>
189		506
190	=over 4	507	=over 4
191		508
192	=item on_init $term	509	=item on_init $term
193		510
194	Called after a new terminal object has been initialized, but before	511	Called after a new terminal object has been initialized, but before
195	windows are created or the command gets run. Most methods are unsafe to	512	windows are created or the command gets run. Most methods are unsafe to
196	call or deliver senseless data, as terminal size and other characteristics	513	call or deliver senseless data, as terminal size and other characteristics
197	have not yet been determined. You can safely query and change resources,	514	have not yet been determined. You can safely query and change resources
198	though.	515	and options, though. For many purposes the C<on_start> hook is a better
		516	place.
		517
		518	=item on_start $term
		519
		520	Called at the very end of initialisation of a new terminal, just before
		521	trying to map (display) the toplevel and returning to the main loop.
		522
		523	=item on_destroy $term
		524
		525	Called whenever something tries to destroy terminal, when the terminal is
		526	still fully functional (not for long, though).
199		527
200	=item on_reset $term	528	=item on_reset $term
201		529
202	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
203	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
204	variables.	532	variables.
205		533
206	=item on_start $term	534	=item on_child_start $term, $pid
207		535
208	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.
209	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>.
210		542
211	=item on_sel_make $term, $eventtime	543	=item on_sel_make $term, $eventtime
212		544
213	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
214	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
…		…
221		553
222	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
223	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
224	by calling C<< $term->selection >>.	556	by calling C<< $term->selection >>.
225		557
226	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.
227		559
228	=item on_sel_extend $term	560	=item on_sel_extend $term
229		561
230	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
231	click) and is either supposed to return false (normal operation), or	563	click) and is either supposed to return false (normal operation), or
232	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
233	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.
234		568
235	See the F<selection> example extension.	569	See the F<selection> example extension.
236		570
237	=item on_view_change $term, $offset	571	=item on_view_change $term, $offset
238		572
239	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
240	scrolls. Offset C<0> means display the normal terminal, positive values	574	scrolls. Offset C<0> means display the normal terminal, positive values
241	show this many lines of scrollback.	575	show this many lines of scrollback.
242		576
243	=item on_scroll_back $term, $lines, $saved	577	=item on_scroll_back $term, $lines, $saved
244		578
…		…
248		582
249	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,	583	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
250	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total	584	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
251	number of lines that will be in the scrollback buffer.	585	number of lines that will be in the scrollback buffer.
252		586
253	=item on_osc_seq $term, $string	587	=item on_osc_seq $term, $op, $args, $resp
		588
		589	Called on every OSC sequence and can be used to suppress it or modify its
		590	behaviour. The default should be to return an empty list. A true value
		591	suppresses execution of the request completely. Make sure you don't get
		592	confused by recursive invocations when you output an OSC sequence within
		593	this callback.
		594
		595	C<on_osc_seq_perl> should be used for new behaviour.
		596
		597	=item on_osc_seq_perl $term, $args, $resp
254		598
255	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =	599	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
256	operating system command) is processed. Cursor position and other state	600	operating system command) is processed. Cursor position and other state
257	information is up-to-date when this happens. For interoperability, the	601	information is up-to-date when this happens. For interoperability, the
258	string should start with the extension name and a colon, to distinguish	602	string should start with the extension name (sans -osc) and a semicolon,
259	it from commands for other extensions, and this might be enforced in the	603	to distinguish it from commands for other extensions, and this might be
260	future.	604	enforced in the future.
		605
		606	For example, C<overlay-osc> uses this:
		607
		608	sub on_osc_seq_perl {
		609	my ($self, $osc, $resp) = @_;
		610
		611	return unless $osc =~ s/^overlay;//;
		612
		613	... process remaining $osc string
		614	}
261		615
262	Be careful not ever to trust (in a security sense) the data you receive,	616	Be careful not ever to trust (in a security sense) the data you receive,
263	as its source can not easily be controleld (e-mail content, messages from	617	as its source can not easily be controlled (e-mail content, messages from
264	other users on the same system etc.).	618	other users on the same system etc.).
		619
		620	For responses, C<$resp> contains the end-of-args separator used by the
		621	sender.
265		622
266	=item on_add_lines $term, $string	623	=item on_add_lines $term, $string
267		624
268	Called whenever text is about to be output, with the text as argument. You	625	Called whenever text is about to be output, with the text as argument. You
269	can filter/change and output the text yourself by returning a true value	626	can filter/change and output the text yourself by returning a true value
…		…
274	=item on_tt_write $term, $octets	631	=item on_tt_write $term, $octets
275		632
276	Called whenever some data is written to the tty/pty and can be used to	633	Called whenever some data is written to the tty/pty and can be used to
277	suppress or filter tty input.	634	suppress or filter tty input.
278		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
279	=item on_line_update $term, $row	643	=item on_line_update $term, $row
280		644
281	Called whenever a line was updated or changed. Can be used to filter	645	Called whenever a line was updated or changed. Can be used to filter
282	screen output (e.g. underline urls or other useless stuff). Only lines	646	screen output (e.g. underline urls or other useless stuff). Only lines
283	that are being shown will be filtered, and, due to performance reasons,	647	that are being shown will be filtered, and, due to performance reasons,
…		…
290	later with the already-modified line (e.g. if unrelated parts change), so	654	later with the already-modified line (e.g. if unrelated parts change), so
291	you cannot just toggle rendition bits, but only set them.	655	you cannot just toggle rendition bits, but only set them.
292		656
293	=item on_refresh_begin $term	657	=item on_refresh_begin $term
294		658
295	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
296	or similar effects by modify terminal contents in refresh_begin, and	660	similar effects by modifying the terminal contents in refresh_begin, and
297	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
298	code is run after this hook, and takes precedence.	662	code is run after this hook, and takes precedence.
299		663
300	=item on_refresh_end $term	664	=item on_refresh_end $term
301		665
302	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>.
303		667
304	=item on_keyboard_command $term, $string	668	=item on_user_command $term, $string
305		669
306	Called whenever the user presses a key combination that has a	670	Called whenever a user-configured event is being activated (e.g. via
307	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>
308	resource in the @@RXVT_NAME@@(1) manpage).	672	resource in the @@RXVT_NAME@@(1) manpage).
		673
		674	The event is simply the action string. This interface is assumed to change
		675	slightly in the future.
		676
		677	=item on_register_command $term, $keysym, $modifiermask, $string
		678
		679	Called after parsing a keysym resource but before registering the
		680	associated binding. If this hook returns TRUE the binding is not
		681	registered. It can be used to modify a binding by calling
		682	C<register_command>.
		683
		684	=item on_resize_all_windows $term, $new_width, $new_height
		685
		686	Called just after the new window size has been calculated, but before
		687	windows are actually being resized or hints are being set. If this hook
		688	returns TRUE, setting of the window hints is being skipped.
		689
		690	=item on_x_event $term, $event
		691
		692	Called on every X event received on the vt window (and possibly other
		693	windows). Should only be used as a last resort. Most event structure
		694	members are not passed.
		695
		696	=item on_root_event $term, $event
		697
		698	Like C<on_x_event>, but is called for events on the root window.
309		699
310	=item on_focus_in $term	700	=item on_focus_in $term
311		701
312	Called whenever the window gets the keyboard focus, before rxvt-unicode	702	Called whenever the window gets the keyboard focus, before rxvt-unicode
313	does focus in processing.	703	does focus in processing.
314		704
315	=item on_focus_out $term	705	=item on_focus_out $term
316		706
317	Called wheneever the window loses keyboard focus, before rxvt-unicode does	707	Called whenever the window loses keyboard focus, before rxvt-unicode does
318	focus out processing.	708	focus out processing.
319		709
		710	=item on_configure_notify $term, $event
		711
		712	=item on_property_notify $term, $event
		713
320	=item on_key_press $term, $event, $keysym, $octets	714	=item on_key_press $term, $event, $keysym, $octets
321		715
322	=item on_key_release $term, $event, $keysym	716	=item on_key_release $term, $event, $keysym
323		717
324	=item on_button_press $term, $event	718	=item on_button_press $term, $event
…		…
329		723
330	=item on_map_notify $term, $event	724	=item on_map_notify $term, $event
331		725
332	=item on_unmap_notify $term, $event	726	=item on_unmap_notify $term, $event
333		727
334	Called whenever the corresponding X event is received for the terminal If	728	Called whenever the corresponding X event is received for the terminal. If
335	the hook returns true, then the even will be ignored by rxvt-unicode.	729	the hook returns true, then the event will be ignored by rxvt-unicode.
336		730
337	The event is a hash with most values as named by Xlib (see the XEvent	731	The event is a hash with most values as named by Xlib (see the XEvent
338	manpage), with the additional members C<row> and C<col>, which are the row	732	manpage), with the additional members C<row> and C<col>, which are the
339	and column under the mouse cursor.	733	(real, not screen-based) row and column under the mouse cursor.
340		734
341	C<on_key_press> additionally receives the string rxvt-unicode would	735	C<on_key_press> additionally receives the string rxvt-unicode would
342	output, if any, in locale-specific encoding.	736	output, if any, in locale-specific encoding.
343		737
344	subwindow.	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.
345		752
346	=back	753	=back
347		754
348	=cut	755	=cut
349		756
…		…
355	use Scalar::Util ();	762	use Scalar::Util ();
356	use List::Util ();	763	use List::Util ();
357		764
358	our $VERSION = 1;	765	our $VERSION = 1;
359	our $TERM;	766	our $TERM;
		767	our @TERM_INIT; # should go, prevents async I/O etc.
		768	our @TERM_EXT; # should go, prevents async I/O etc.
360	our @HOOKNAME;	769	our @HOOKNAME;
361	our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;	770	our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
362	our %OPTION;	771	our %OPTION;
363		772
364	our $LIBDIR;	773	our $LIBDIR;
365	our $RESNAME;	774	our $RESNAME;
366	our $RESCLASS;	775	our $RESCLASS;
367	our $RXVTNAME;	776	our $RXVTNAME;
368		777
		778	our $NOCHAR = chr 0xffff;
		779
369	=head2 Variables in the C<urxvt> Package	780	=head2 Variables in the C<urxvt> Package
370		781
371	=over 4	782	=over 4
372		783
373	=item $urxvt::LIBDIR	784	=item $urxvt::LIBDIR
…		…
386	=item $urxvt::TERM	797	=item $urxvt::TERM
387		798
388	The current terminal. This variable stores the current C<urxvt::term>	799	The current terminal. This variable stores the current C<urxvt::term>
389	object, whenever a callback/hook is executing.	800	object, whenever a callback/hook is executing.
390		801
		802	=item @urxvt::TERM_INIT
		803
		804	All code references in this array will be called as methods of the next newly
		805	created C<urxvt::term> object (during the C<on_init> phase). The array
		806	gets cleared before the code references that were in it are being executed,
		807	so references can push themselves onto it again if they so desire.
		808
		809	This complements to the perl-eval command line option, but gets executed
		810	first.
		811
		812	=item @urxvt::TERM_EXT
		813
		814	Works similar to C<@TERM_INIT>, but contains perl package/class names, which
		815	get registered as normal extensions after calling the hooks in C<@TERM_INIT>
		816	but before other extensions. Gets cleared just like C<@TERM_INIT>.
		817
391	=back	818	=back
392		819
393	=head2 Functions in the C<urxvt> Package	820	=head2 Functions in the C<urxvt> Package
394		821
395	=over 4	822	=over 4
396		823
397	=item urxvt::fatal $errormessage	824	=item urxvt::fatal $errormessage
398		825
399	Fatally aborts execution with the given error message. Avoid at all	826	Fatally aborts execution with the given error message (which should
400	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
401	starts up.	828	is acceptable (and useful) is in the init hook, where it prevents the
		829	terminal from starting up.
402		830
403	=item urxvt::warn $string	831	=item urxvt::warn $string
404		832
405	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
406	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
407	that calls this function.	835	that calls this function.
408		836
409	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
410	correct place, e.g. on stderr of the connecting urxvtc client.	838	correct place, e.g. on stderr of the connecting urxvtc client.
411		839
412	Messages have a size limit of 1023 bytes currently.	840	Messages have a size limit of 1023 bytes currently.
413		841
414	=item $is_safe = urxvt::safe	842	=item @terms = urxvt::termlist
415		843
416	Returns true when it is safe to do potentially unsafe things, such as	844	Returns all urxvt::term objects that exist in this process, regardless of
417	evaluating perl code specified by the user. This is true when urxvt was	845	whether they are started, being destroyed etc., so be careful. Only term
418	started setuid or setgid.	846	objects that have perl extensions attached will be returned (because there
		847	is no urxvt::term object associated with others).
419		848
420	=item $time = urxvt::NOW	849	=item $time = urxvt::NOW
421		850
422	Returns the "current time" (as per the event loop).	851	Returns the "current time" (as per the event loop).
423		852
424	=item urxvt::CurrentTime	853	=item urxvt::CurrentTime
425		854
426	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,	855	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
427	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,	856	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
428	Button4Mask, Button5Mask, AnyModifier	857	Button4Mask, Button5Mask, AnyModifier
		858
		859	=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
		860	ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
		861	PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
		862	Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
		863	KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
		864	ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
		865	FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
		866
		867	=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
		868	EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
		869	GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
		870	UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
		871	ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
		872	CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
		873	SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
429		874
430	Various constants for use in X calls and event processing.	875	Various constants for use in X calls and event processing.
431		876
432	=back	877	=back
433		878
…		…
450		895
451	=item $rend = urxvt::OVERLAY_RSTYLE	896	=item $rend = urxvt::OVERLAY_RSTYLE
452		897
453	Return the rendition mask used for overlays by default.	898	Return the rendition mask used for overlays by default.
454		899
455	=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
456		902
457	Return the bit that enabled bold, italic, blink, reverse-video and	903	Return the bit that enabled bold, italic, blink, reverse-video and
458	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
459	the bitset.	905	the bitset.
460		906
…		…
466		912
467	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour	913	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
468		914
469	=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour	915	=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
470		916
		917	=item $rend = urxvt::SET_COLOR $rend, $new_fg, $new_bg
		918
471	Replace the foreground/background colour in the rendition mask with the	919	Replace the foreground/background colour in the rendition mask with the
472	specified one.	920	specified one.
473		921
474	=item $value = urxvt::GET_CUSTOM $rend	922	=item $value = urxvt::GET_CUSTOM $rend
475		923
…		…
484	=back	932	=back
485		933
486	=cut	934	=cut
487		935
488	BEGIN {	936	BEGIN {
489	urxvt->bootstrap;
490
491	# overwrite perl's warn	937	# overwrite perl's warn
492	*CORE::GLOBAL::warn = sub {	938	*CORE::GLOBAL::warn = sub {
493	my $msg = join "", @_;	939	my $msg = join "", @_;
494	$msg .= "\n"	940	$msg .= "\n"
495	unless $msg =~ /\n$/;	941	unless $msg =~ /\n$/;
496	urxvt::warn ($msg);	942	urxvt::warn ($msg);
497	};	943	};
498
499	delete $ENV{IFS};
500	delete $ENV{CDPATH};
501	delete $ENV{BASH_ENV};
502	$ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
503	}	944	}
504		945
505	my @hook_count;	946	no warnings 'utf8';
		947
		948	sub parse_resource {
		949	my ($term, $name, $isarg, $longopt, $flag, $value) = @_;
		950
		951	$term->scan_meta;
		952
		953	my $r = $term->{meta}{resource};
		954	while (my ($pattern, $v) = each %$r) {
		955	$name =~ y/-/./ if $isarg;
		956
		957	if (
		958	$pattern =~ /\.$/
		959	? $pattern eq substr $name, 0, length $pattern
		960	: $pattern eq $name
		961	) {
		962	$name = "$urxvt::RESCLASS.$name";
		963
		964	push @TERM_EXT, $v->[0];
		965
		966	if ($v->[1] eq "boolean") {
		967	$term->put_option_db ($name, $flag ? "true" : "false");
		968	return 1;
		969	} else {
		970	$term->put_option_db ($name, $value);
		971	return 1 + 2;
		972	}
		973	}
		974	}
		975
		976	0
		977	}
		978
		979	sub usage {
		980	my ($term, $usage_type) = @_;
		981
		982	$term->scan_meta;
		983
		984	my $r = $term->{meta}{resource};
		985
		986	for my $pattern (sort keys %$r) {
		987	my ($ext, $type, $desc) = @{ $r->{$pattern} };
		988
		989	$desc .= " (-pe $ext)";
		990
		991	if ($usage_type == 1) {
		992	$pattern =~ y/./-/;
		993	$pattern =~ s/-$/-.../g;
		994
		995	if ($type eq "boolean") {
		996	urxvt::log sprintf " -%-30s %s\n", "/+$pattern", $desc;
		997	} else {
		998	urxvt::log sprintf " -%-30s %s\n", "$pattern $type", $desc;
		999	}
		1000	} else {
		1001	$pattern =~ s/\.$/.*/g;
		1002	urxvt::log sprintf " %-31s %s\n", "$pattern:", $type;
		1003	}
		1004	}
		1005	}
		1006
506	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};	1007	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
507		1008
508	sub verbose {	1009	sub verbose {
509	my ($level, $msg) = @_;	1010	my ($level, $msg) = @_;
510	warn "$msg\n" if $level <= $verbosity;	1011	warn "$msg\n" if $level <= $verbosity;
511	}	1012	}
512		1013
513	my $extension_pkg = "extension0000";
514	my %extension_pkg;	1014	my %extension_pkg;
515		1015
516	# load a single script into its own package, once only	1016	# load a single script into its own package, once only
517	sub extension_package($) {	1017	sub extension_package($) {
518	my ($path) = @_;	1018	my ($path) = @_;
519		1019
520	$extension_pkg{$path} ||= do {	1020	$extension_pkg{$path} ||= do {
521	my $pkg = "urxvt::" . ($extension_pkg++);	1021	$path =~ /([^\/\\]+)$/;
		1022	my $pkg = $1;
		1023	$pkg =~ s/[^[:word:]]/_/g;
		1024	$pkg = "urxvt::ext::$pkg";
522		1025
523	verbose 3, "loading extension '$path' into package '$pkg'";	1026	verbose 3, "loading extension '$path' into package '$pkg'";
524		1027
525	open my $fh, "<:raw", $path	1028	open my $fh, "<:raw", $path
526	or die "$path: $!";	1029	or die "$path: $!";
527		1030
528	my $source = untaint	1031	my $source =
529	"package $pkg; use strict; use utf8;\n"	1032	"package $pkg; use strict; use utf8; no warnings 'utf8';\n"
530	. "use base urxvt::term::extension::;\n"
531	. "#line 1 \"$path\"\n{\n"	1033	. "#line 1 \"$path\"\n{\n"
532	. (do { local $/; <$fh> })	1034	. (do { local $/; <$fh> })
533	. "\n};\n1";	1035	. "\n};\n1";
534		1036
535	eval $source	1037	eval $source
…		…
545	sub invoke {	1047	sub invoke {
546	local $TERM = shift;	1048	local $TERM = shift;
547	my $htype = shift;	1049	my $htype = shift;
548		1050
549	if ($htype == 0) { # INIT	1051	if ($htype == 0) { # INIT
550	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");	1052	my @dirs = $TERM->perl_libdirs;
551		1053
552	my %ext_arg;	1054	my %ext_arg;
553		1055
		1056	{
		1057	my @init = @TERM_INIT;
		1058	@TERM_INIT = ();
		1059	$_->($TERM) for @init;
		1060	my @pkg = @TERM_EXT;
		1061	@TERM_EXT = ();
		1062	$TERM->register_package ($_) for @pkg;
		1063	}
		1064
554	for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {	1065	for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
555	if ($_ eq "default") {	1066	if ($_ eq "default") {
556	$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback);	1067	$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
557	} elsif (/^-(.*)$/) {	1068	} elsif (/^-(.*)$/) {
558	delete $ext_arg{$1};	1069	delete $ext_arg{$1};
559	} elsif (/^([^<]+)<(.*)>$/) {	1070	} elsif (/^([^<]+)<(.*)>$/) {
560	push @{ $ext_arg{$1} }, $2;	1071	push @{ $ext_arg{$1} }, $2;
561	} else {	1072	} else {
562	$ext_arg{$_} ||= [];	1073	$ext_arg{$_} ||= [];
563	}	1074	}
564	}	1075	}
565		1076
566	while (my ($ext, $argv) = each %ext_arg) {	1077	for my $ext (sort keys %ext_arg) {
567	my @files = grep -f $_, map "$_/$ext", @dirs;	1078	my @files = grep -f $_, map "$_/$ext", @dirs;
568		1079
569	if (@files) {	1080	if (@files) {
570	$TERM->register_package (extension_package $files[0], $argv);	1081	$TERM->register_package (extension_package $files[0], $ext_arg{$ext});
571	} else {	1082	} else {
572	warn "perl extension '$ext' not found in perl library search path\n";	1083	warn "perl extension '$ext' not found in perl library search path\n";
573	}	1084	}
574	}	1085	}
575		1086
…		…
581		1092
582	if (my $cb = $TERM->{_hook}[$htype]) {	1093	if (my $cb = $TERM->{_hook}[$htype]) {
583	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"	1094	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
584	if $verbosity >= 10;	1095	if $verbosity >= 10;
585		1096
586	keys %$cb;	1097	for my $pkg (keys %$cb) {
587
588	while (my ($pkg, $cb) = each %$cb) {
589	$retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) }	1098	my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg}, @_) };
590	and last;	1099	$retval ||= $retval_;
591		1100
592	if ($@) {	1101	if ($@) {
593	$TERM->ungrab; # better to lose the grab than the session	1102	$TERM->ungrab; # better to lose the grab than the session
594	warn $@;	1103	warn $@;
595	}	1104	}
596	}	1105	}
		1106
		1107	verbose 11, "$HOOKNAME[$htype] returning <$retval>"
		1108	if $verbosity >= 11;
597	}	1109	}
598		1110
599	if ($htype == 1) { # DESTROY	1111	if ($htype == 1) { # DESTROY
600	if (my $hook = delete $TERM->{_hook}) {
601	for my $htype (0..$#$hook) {
602	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
603	or set_should_invoke $htype, 0;
604	}
605	}
606
607	# clear package objects	1112	# clear package objects
608	%$_ = () for values %{ $TERM->{_pkg} };	1113	%$_ = () for values %{ $TERM->{_pkg} };
609		1114
610	# clear package	1115	# clear package
611	%$TERM = ();	1116	%$TERM = ();
612	}	1117	}
613		1118
614	$retval	1119	$retval
		1120	}
		1121
		1122	sub SET_COLOR($$$) {
		1123	SET_BGCOLOR (SET_FGCOLOR ($_[0], $_[1]), $_[2])
		1124	}
		1125
		1126	sub rend2mask {
		1127	no strict 'refs';
		1128	my ($str, $mask) = (@_, 0);
		1129	my %color = ( fg => undef, bg => undef );
		1130	my @failed;
		1131	for my $spec ( split /\s+/, $str ) {
		1132	if ( $spec =~ /^([fb]g)[_:-]?(\d+)/i ) {
		1133	$color{lc($1)} = $2;
		1134	} else {
		1135	my $neg = $spec =~ s/^[-^]//;
		1136	unless ( exists &{"RS_$spec"} ) {
		1137	push @failed, $spec;
		1138	next;
		1139	}
		1140	my $cur = &{"RS_$spec"};
		1141	if ( $neg ) {
		1142	$mask &= ~$cur;
		1143	} else {
		1144	$mask |= $cur;
		1145	}
		1146	}
		1147	}
		1148	($mask, @color{qw(fg bg)}, \@failed)
615	}	1149	}
616		1150
617	# urxvt::term::extension	1151	# urxvt::term::extension
618		1152
619	package urxvt::term::extension;	1153	package urxvt::term::extension;
…		…
625	while (my ($name, $cb) = each %hook) {	1159	while (my ($name, $cb) = each %hook) {
626	my $htype = $HOOKTYPE{uc $name};	1160	my $htype = $HOOKTYPE{uc $name};
627	defined $htype	1161	defined $htype
628	or Carp::croak "unsupported hook type '$name'";	1162	or Carp::croak "unsupported hook type '$name'";
629		1163
		1164	$self->set_should_invoke ($htype, +1)
630	unless (exists $self->{term}{_hook}[$htype]{$pkg}) {	1165	unless exists $self->{term}{_hook}[$htype]{$pkg};
631	$hook_count[$htype]++
632	or urxvt::set_should_invoke $htype, 1;
633	}
634		1166
635	$self->{term}{_hook}[$htype]{$pkg} = $cb;	1167	$self->{term}{_hook}[$htype]{$pkg} = $cb;
636	}	1168	}
637	}	1169	}
638		1170
…		…
643	for my $name (@hook) {	1175	for my $name (@hook) {
644	my $htype = $HOOKTYPE{uc $name};	1176	my $htype = $HOOKTYPE{uc $name};
645	defined $htype	1177	defined $htype
646	or Carp::croak "unsupported hook type '$name'";	1178	or Carp::croak "unsupported hook type '$name'";
647		1179
		1180	$self->set_should_invoke ($htype, -1)
648	if (delete $self->{term}{_hook}[$htype]{$pkg}) {	1181	if delete $self->{term}{_hook}[$htype]{$pkg};
649	--$hook_count[$htype]
650	or urxvt::set_should_invoke $htype, 0;
651	}
652	}	1182	}
653	}	1183	}
654		1184
655	our $AUTOLOAD;	1185	our $AUTOLOAD;
656		1186
…		…
688	=head2 The C<urxvt::anyevent> Class	1218	=head2 The C<urxvt::anyevent> Class
689		1219
690	The sole purpose of this class is to deliver an interface to the	1220	The sole purpose of this class is to deliver an interface to the
691	C<AnyEvent> module - any module using it will work inside urxvt without	1221	C<AnyEvent> module - any module using it will work inside urxvt without
692	further programming. The only exception is that you cannot wait on	1222	further programming. The only exception is that you cannot wait on
693	condition variables, but non-blocking condvar use is ok. What this means	1223	condition variables, but non-blocking condvar use is ok.
694	is that you cannot use blocking APIs, but the non-blocking variant should	1224
695	work.	1225	In practical terms this means is that you cannot use blocking APIs, but
		1226	the non-blocking variant should work.
696		1227
697	=cut	1228	=cut
698		1229
699	our $VERSION = 1;	1230	our $VERSION = '5.23';
700		1231
701	$INC{"urxvt/anyevent.pm"} = 1; # mark us as there	1232	$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
702	push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];	1233	push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
703		1234
704	sub timer {	1235	sub timer {
…		…
706		1237
707	my $cb = $arg{cb};	1238	my $cb = $arg{cb};
708		1239
709	urxvt::timer	1240	urxvt::timer
710	->new	1241	->new
711	->start (urxvt::NOW + $arg{after})	1242	->after ($arg{after}, $arg{interval})
712	->cb (sub {	1243	->cb ($arg{interval} ? $cb : sub {
713	$_[0]->stop; # need to cancel manually	1244	$_[0]->stop; # need to cancel manually
714	$cb->();	1245	$cb->();
715	})	1246	})
716	}	1247	}
717		1248
718	sub io {	1249	sub io {
719	my ($class, %arg) = @_;	1250	my ($class, %arg) = @_;
720		1251
721	my $cb = $arg{cb};	1252	my $cb = $arg{cb};
		1253	my $fd = fileno $arg{fh};
		1254	defined $fd or $fd = $arg{fh};
722		1255
723	bless [$arg{fh}, urxvt::iow	1256	bless [$arg{fh}, urxvt::iow
724	->new	1257	->new
725	->fd (fileno $arg{fh})	1258	->fd ($fd)
726	->events (($arg{poll} =~ /r/ ? 1 : 0)	1259	->events (($arg{poll} =~ /r/ ? 1 : 0)
727	| ($arg{poll} =~ /w/ ? 2 : 0))	1260	| ($arg{poll} =~ /w/ ? 2 : 0))
728	->start	1261	->start
729	->cb (sub {	1262	->cb ($cb)
730	$cb->(($_[1] & 1 ? 'r' : '')
731	. ($_[1] & 2 ? 'w' : ''));
732	})],
733	urxvt::anyevent::	1263	], urxvt::anyevent::
		1264	}
		1265
		1266	sub idle {
		1267	my ($class, %arg) = @_;
		1268
		1269	my $cb = $arg{cb};
		1270
		1271	urxvt::iw
		1272	->new
		1273	->start
		1274	->cb ($cb)
		1275	}
		1276
		1277	sub child {
		1278	my ($class, %arg) = @_;
		1279
		1280	my $cb = $arg{cb};
		1281
		1282	urxvt::pw
		1283	->new
		1284	->start ($arg{pid})
		1285	->cb (sub {
		1286	$_[0]->stop; # need to cancel manually
		1287	$cb->($_[0]->rpid, $_[0]->rstatus);
		1288	})
734	}	1289	}
735		1290
736	sub DESTROY {	1291	sub DESTROY {
737	$_[0][1]->stop;	1292	$_[0][1]->stop;
738	}	1293	}
739		1294
740	sub condvar {	1295	# only needed for AnyEvent < 6 compatibility
741	bless \my $flag, urxvt::anyevent::condvar::	1296	sub one_event {
742	}
743
744	sub urxvt::anyevent::condvar::broadcast {
745	${$_[0]}++;
746	}
747
748	sub urxvt::anyevent::condvar::wait {
749	unless (${$_[0]}) {
750	Carp::croak "AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API";	1297	Carp::croak "AnyEvent->one_event blocking wait unsupported in urxvt, use a non-blocking API";
751	}
752	}	1298	}
753		1299
754	package urxvt::term;	1300	package urxvt::term;
755		1301
756	=head2 The C<urxvt::term> Class	1302	=head2 The C<urxvt::term> Class
…		…
761		1307
762	# find on_xxx subs in the package and register them	1308	# find on_xxx subs in the package and register them
763	# as hooks	1309	# as hooks
764	sub register_package {	1310	sub register_package {
765	my ($self, $pkg, $argv) = @_;	1311	my ($self, $pkg, $argv) = @_;
		1312
		1313	no strict 'refs';
		1314
		1315	urxvt::verbose 6, "register package $pkg to $self";
		1316
		1317	@{"$pkg\::ISA"} = urxvt::term::extension::;
766		1318
767	my $proxy = bless {	1319	my $proxy = bless {
768	_pkg => $pkg,	1320	_pkg => $pkg,
769	argv => $argv,	1321	argv => $argv,
770	}, $pkg;	1322	}, $pkg;
…		…
777	$proxy->enable ($name => $ref);	1329	$proxy->enable ($name => $ref);
778	}	1330	}
779	}	1331	}
780	}	1332	}
781		1333
		1334	sub perl_libdirs {
		1335	map { split /:/ }
		1336	$_[0]->resource ("perl_lib"),
		1337	$ENV{URXVT_PERL_LIB},
		1338	"$ENV{HOME}/.urxvt/ext",
		1339	"$LIBDIR/perl"
		1340	}
		1341
		1342	sub scan_meta {
		1343	my ($self) = @_;
		1344	my @libdirs = perl_libdirs $self;
		1345
		1346	return if $self->{meta_libdirs} eq join "\x00", @libdirs;
		1347
		1348	my %meta;
		1349
		1350	$self->{meta_libdirs} = join "\x00", @libdirs;
		1351	$self->{meta} = \%meta;
		1352
		1353	for my $dir (reverse @libdirs) {
		1354	opendir my $fh, $dir
		1355	or next;
		1356	for my $ext (readdir $fh) {
		1357	$ext ne "."
		1358	and $ext ne ".."
		1359	and open my $fh, "<", "$dir/$ext"
		1360	or next;
		1361
		1362	while (<$fh>) {
		1363	if (/^#:META:X_RESOURCE:(.*)/) {
		1364	my ($pattern, $type, $desc) = split /:/, $1;
		1365	$pattern =~ s/^%(?:\.|$)/$ext./g; # % in pattern == extension name
		1366	if ($pattern =~ /[^a-zA-Z0-9\-\.]/) {
		1367	warn "$dir/$ext: meta resource '$pattern' contains illegal characters (not alphanumeric nor . nor *)\n";
		1368	} else {
		1369	$meta{resource}{$pattern} = [$ext, $type, $desc];
		1370	}
		1371	} elsif (/^\s*(?:#|$)/) {
		1372	# skip other comments and empty lines
		1373	} else {
		1374	last; # stop parsing on first non-empty non-comment line
		1375	}
		1376	}
		1377	}
		1378	}
		1379	}
		1380
782	=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]	1381	=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
783		1382
784	Creates a new terminal, very similar as if you had started it with system	1383	Creates a new terminal, very similar as if you had started it with system
785	C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like	1384	C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
786	hash which defines the environment of the new terminal.	1385	hash which defines the environment of the new terminal.
787		1386
788	Croaks (and probably outputs an error message) if the new instance	1387	Croaks (and probably outputs an error message) if the new instance
789	couldn't be created. Returns C<undef> if the new instance didn't	1388	couldn't be created. Returns C<undef> if the new instance didn't
790	initialise perl, and the terminal object otherwise. The C<init> and	1389	initialise perl, and the terminal object otherwise. The C<init> and
791	C<start> hooks will be called during this call.	1390	C<start> hooks will be called before this call returns, and are free to
		1391	refer to global data (which is race free).
792		1392
793	=cut	1393	=cut
794		1394
795	sub new {	1395	sub new {
796	my ($class, $env, @args) = @_;	1396	my ($class, $env, @args) = @_;
797		1397
		1398	$env or Carp::croak "environment hash missing in call to urxvt::term->new";
		1399	@args or Carp::croak "name argument missing in call to urxvt::term->new";
		1400
798	_new ([ map "$_=$env->{$_}", keys %$env ], @args);	1401	_new ([ map "$_=$env->{$_}", keys %$env ], \@args);
799	}	1402	}
800		1403
801	=item $term->destroy	1404	=item $term->destroy
802		1405
803	Destroy the terminal object (close the window, free resources	1406	Destroy the terminal object (close the window, free resources
804	etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event	1407	etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
805	watchers (timers, io watchers) are still active.	1408	watchers (timers, io watchers) are still active.
806		1409
		1410	=item $term->exec_async ($cmd[, @args])
		1411
		1412	Works like the combination of the C<fork>/C<exec> builtins, which executes
		1413	("starts") programs in the background. This function takes care of setting
		1414	the user environment before exec'ing the command (e.g. C<PATH>) and should
		1415	be preferred over explicit calls to C<exec> or C<system>.
		1416
		1417	Returns the pid of the subprocess or C<undef> on error.
		1418
		1419	=cut
		1420
		1421	sub exec_async {
		1422	my $self = shift;
		1423
		1424	my $pid = fork;
		1425
		1426	return $pid
		1427	if !defined $pid or $pid;
		1428
		1429	%ENV = %{ $self->env };
		1430
		1431	exec @_;
		1432	urxvt::_exit 255;
		1433	}
		1434
807	=item $isset = $term->option ($optval[, $set])	1435	=item $isset = $term->option ($optval[, $set])
808		1436
809	Returns true if the option specified by C<$optval> is enabled, and	1437	Returns true if the option specified by C<$optval> is enabled, and
810	optionally change it. All option values are stored by name in the hash	1438	optionally change it. All option values are stored by name in the hash
811	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.	1439	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
812		1440
813	Here is a a likely non-exhaustive list of option names, please see the	1441	Here is a likely non-exhaustive list of option names, please see the
814	source file F</src/optinc.h> to see the actual list:	1442	source file F</src/optinc.h> to see the actual list:
815		1443
816	borderLess console cursorBlink cursorUnderline hold iconic insecure	1444	borderLess buffered console cursorBlink cursorUnderline hold iconic
817	intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage	1445	insecure intensityStyles iso14755 iso14755_52 jumpScroll loginShell
		1446	mapAlert meta8 mouseWheelScrollPage override_redirect pastableTabs
818	pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating	1447	pointerBlank reverseVideo scrollBar scrollBar_floating scrollBar_right
819	scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer	1448	scrollTtyKeypress scrollTtyOutput scrollWithBuffer secondaryScreen
820	secondaryScreen secondaryScroll skipBuiltinGlyphs transparent	1449	secondaryScroll skipBuiltinGlyphs skipScroll transparent tripleclickwords
821	tripleclickwords utmpInhibit visualBell	1450	urgentOnBell utmpInhibit visualBell
822		1451
823	=item $value = $term->resource ($name[, $newval])	1452	=item $value = $term->resource ($name[, $newval])
824		1453
825	Returns the current resource value associated with a given name and	1454	Returns the current resource value associated with a given name and
826	optionally sets a new value. Setting values is most useful in the C<init>	1455	optionally sets a new value. Setting values is most useful in the C<init>
…		…
835	likely change).	1464	likely change).
836		1465
837	Please note that resource strings will currently only be freed when the	1466	Please note that resource strings will currently only be freed when the
838	terminal is destroyed, so changing options frequently will eat memory.	1467	terminal is destroyed, so changing options frequently will eat memory.
839		1468
840	Here is a a likely non-exhaustive list of resource names, not all of which	1469	Here is a likely non-exhaustive list of resource names, not all of which
841	are supported in every build, please see the source file F</src/rsinc.h>	1470	are supported in every build, please see the source file F</src/rsinc.h>
842	to see the actual list:	1471	to see the actual list:
843		1472
844	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont	1473	answerbackstring backgroundPixmap backspace_key blendtype blurradius
845	borderLess color cursorBlink cursorUnderline cutchars delete_key	1474	boldFont boldItalicFont borderLess buffered chdir color cursorBlink
846	display_name embed ext_bwidth fade font geometry hold iconName	1475	cursorUnderline cutchars delete_key depth display_name embed ext_bwidth
847	imFont imLocale inputMethod insecure int_bwidth intensityStyles	1476	fade font geometry hold iconName iconfile imFont imLocale inputMethod
		1477	insecure int_bwidth intensityStyles iso14755 iso14755_52 italicFont
848	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier	1478	jumpScroll letterSpace lineSpace loginShell mapAlert meta8 modifier
849	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2	1479	mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
850	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd	1480	perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
851	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating	1481	preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
852	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput	1482	scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
853	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle	1483	scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
854	shade term_name title transparent transparent_all tripleclickwords	1484	secondaryScreen secondaryScroll shade skipBuiltinGlyphs skipScroll
		1485	term_name title transient_for transparent tripleclickwords urgentOnBell
855	utmpInhibit visualBell	1486	utmpInhibit visualBell
856		1487
857	=cut	1488	=cut
858		1489
859	sub resource($$;$) {	1490	sub resource($$;$) {
860	my ($self, $name) = (shift, shift);	1491	my ($self, $name) = (shift, shift);
861	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);	1492	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
862	&urxvt::term::_resource	1493	goto &urxvt::term::_resource
863	}	1494	}
864		1495
865	=item $success = $term->parse_keysym ($keysym_spec, $command_string)	1496	=item $value = $term->x_resource ($pattern)
866		1497
		1498	Returns the X-Resource for the given pattern, excluding the program or
		1499	class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
		1500	same value as used by this instance of rxvt-unicode. Returns C<undef> if no
		1501	resource with that pattern exists.
		1502
		1503	This method should only be called during the C<on_start> hook, as there is
		1504	only one resource database per display, and later invocations might return
		1505	the wrong resources.
		1506
		1507	=item $value = $term->x_resource_boolean ($pattern)
		1508
		1509	Like C<x_resource>, above, but interprets the string value as a boolean
		1510	and returns C<1> for true values, C<0> for false values and C<undef> if
		1511	the resource or option isn't specified.
		1512
		1513	You should always use this method to parse boolean resources.
		1514
		1515	=cut
		1516
		1517	sub x_resource_boolean {
		1518	my $res = &x_resource;
		1519
		1520	$res =~ /^\s*(?:true|yes|on|1)\s*$/i ? 1 : defined $res && 0
		1521	}
		1522
		1523	=item $success = $term->parse_keysym ($key, $octets)
		1524
867	Adds a keymap translation exactly as specified via a resource. See the	1525	Adds a key binding exactly as specified via a resource. See the
868	C<keysym> resource in the @@RXVT_NAME@@(1) manpage.	1526	C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
		1527
		1528	=item $term->register_command ($keysym, $modifiermask, $string)
		1529
		1530	Adds a key binding. This is a lower level api compared to
		1531	C<parse_keysym>, as it expects a parsed key description, and can be
		1532	used only inside either the C<on_init> hook, to add a binding, or the
		1533	C<on_register_command> hook, to modify a parsed binding.
869		1534
870	=item $rend = $term->rstyle ([$new_rstyle])	1535	=item $rend = $term->rstyle ([$new_rstyle])
871		1536
872	Return and optionally change the current rendition. Text that is output by	1537	Return and optionally change the current rendition. Text that is output by
873	the terminal application will use this style.	1538	the terminal application will use this style.
…		…
881		1546
882	=item ($row, $col) = $term->selection_beg ([$row, $col])	1547	=item ($row, $col) = $term->selection_beg ([$row, $col])
883		1548
884	=item ($row, $col) = $term->selection_end ([$row, $col])	1549	=item ($row, $col) = $term->selection_end ([$row, $col])
885		1550
886	Return the current values of the selection mark, begin or end positions,	1551	Return the current values of the selection mark, begin or end positions.
887	and optionally set them to new values.
888		1552
		1553	When arguments are given, then the selection coordinates are set to
		1554	C<$row> and C<$col>, and the selection screen is set to the current
		1555	screen.
		1556
		1557	=item $screen = $term->selection_screen ([$screen])
		1558
		1559	Returns the current selection screen, and then optionally sets it.
		1560
		1561	=item $term->selection_make ($eventtime[, $rectangular])
		1562
		1563	Tries to make a selection as set by C<selection_beg> and
		1564	C<selection_end>. If C<$rectangular> is true (default: false), a
		1565	rectangular selection will be made. This is the preferred function to make
		1566	a selection.
		1567
889	=item $success = $term->selection_grab ($eventtime)	1568	=item $success = $term->selection_grab ($eventtime[, $clipboard])
890		1569
891	Try to request the primary selection from the server (for example, as set	1570	Try to acquire ownership of the primary (clipboard if C<$clipboard> is
892	by the next method).	1571	true) selection from the server. The corresponding text can be set
		1572	with the next method. No visual feedback will be given. This function
		1573	is mostly useful from within C<on_sel_grab> hooks.
893		1574
894	=item $oldtext = $term->selection ([$newtext])	1575	=item $oldtext = $term->selection ([$newtext, $clipboard])
895		1576
896	Return the current selection text and optionally replace it by C<$newtext>.	1577	Return the current selection (clipboard if C<$clipboard> is true) text
		1578	and optionally replace it by C<$newtext>.
		1579
		1580	=item $term->selection_clear ([$clipboard])
		1581
		1582	Revoke ownership of the primary (clipboard if C<$clipboard> is true) selection.
897		1583
898	=item $term->overlay_simple ($x, $y, $text)	1584	=item $term->overlay_simple ($x, $y, $text)
899		1585
900	Create a simple multi-line overlay box. See the next method for details.	1586	Create a simple multi-line overlay box. See the next method for details.
901		1587
…		…
931		1617
932	The methods currently supported on C<urxvt::overlay> objects are:	1618	The methods currently supported on C<urxvt::overlay> objects are:
933		1619
934	=over 4	1620	=over 4
935		1621
936	=item $overlay->set ($x, $y, $text, $rend)	1622	=item $overlay->set ($x, $y, $text[, $rend])
937		1623
938	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts	1624	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts
939	text in rxvt-unicode's special encoding and an array of rendition values	1625	text in rxvt-unicode's special encoding and an array of rendition values
940	at a specific position inside the overlay.	1626	at a specific position inside the overlay.
		1627
		1628	If C<$rend> is missing, then the rendition will not be changed.
941		1629
942	=item $overlay->hide	1630	=item $overlay->hide
943		1631
944	If visible, hide the overlay, but do not destroy it.	1632	If visible, hide the overlay, but do not destroy it.
945		1633
…		…
990	Convert the given locale-encoded octets into a perl string.	1678	Convert the given locale-encoded octets into a perl string.
991		1679
992	=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])	1680	=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
993		1681
994	XORs the rendition values in the given span with the provided value	1682	XORs the rendition values in the given span with the provided value
995	(default: C<RS_RVid>). Useful in refresh hooks to provide effects similar	1683	(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
996	to the selection.	1684	refresh hooks to provide effects similar to the selection.
997		1685
998	=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])	1686	=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
999		1687
1000	Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing	1688	Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
1001	whitespace will additionally be xored with the C<$rstyle2>, which defaults	1689	whitespace will additionally be xored with the C<$rstyle2>, which defaults
1002	to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines	1690	to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
1003	it instead.	1691	it instead. Both styles I<MUST NOT> contain font styles.
1004		1692
1005	=item $term->scr_bell	1693	=item $term->scr_bell
1006		1694
1007	Ring the bell!	1695	Ring the bell!
1008		1696
…		…
1015		1703
1016	Normally its not a good idea to use this function, as programs might be	1704	Normally its not a good idea to use this function, as programs might be
1017	confused by changes in cursor position or scrolling. Its useful inside a	1705	confused by changes in cursor position or scrolling. Its useful inside a
1018	C<on_add_lines> hook, though.	1706	C<on_add_lines> hook, though.
1019		1707
		1708	=item $term->scr_change_screen ($screen)
		1709
		1710	Switch to given screen - 0 primary, 1 secondary.
		1711
1020	=item $term->cmd_parse ($octets)	1712	=item $term->cmd_parse ($octets)
1021		1713
1022	Similar to C<scr_add_lines>, but the argument must be in the	1714	Similar to C<scr_add_lines>, but the argument must be in the
1023	locale-specific encoding of the terminal and can contain command sequences	1715	locale-specific encoding of the terminal and can contain command sequences
1024	(escape codes) that will be interpreted.	1716	(escape codes) that will be interpreted.
1025		1717
1026	=item $term->tt_write ($octets)	1718	=item $term->tt_write ($octets)
1027		1719
1028	Write the octets given in C<$data> to the tty (i.e. as program input). To	1720	Write the octets given in C<$octets> to the tty (i.e. as program input). To
1029	pass characters instead of octets, you should convert your strings first	1721	pass characters instead of octets, you should convert your strings first
1030	to the locale-specific encoding using C<< $term->locale_encode >>.	1722	to the locale-specific encoding using C<< $term->locale_encode >>.
		1723
		1724	=item $term->tt_paste ($octets)
		1725
		1726	Write the octets given in C<$octets> to the tty as a paste, converting NL to
		1727	CR and bracketing the data with control sequences if bracketed paste mode
		1728	is set.
1031		1729
1032	=item $old_events = $term->pty_ev_events ([$new_events])	1730	=item $old_events = $term->pty_ev_events ([$new_events])
1033		1731
1034	Replaces the event mask of the pty watcher by the given event mask. Can	1732	Replaces the event mask of the pty watcher by the given event mask. Can
1035	be used to suppress input and output handling to the pty/tty. See the	1733	be used to suppress input and output handling to the pty/tty. See the
1036	description of C<< urxvt::timer->events >>. Make sure to always restore	1734	description of C<< urxvt::timer->events >>. Make sure to always restore
1037	the previous value.	1735	the previous value.
1038		1736
		1737	=item $fd = $term->pty_fd
		1738
		1739	Returns the master file descriptor for the pty in use, or C<-1> if no pty
		1740	is used.
		1741
1039	=item $windowid = $term->parent	1742	=item $windowid = $term->parent
1040		1743
1041	Return the window id of the toplevel window.	1744	Return the window id of the toplevel window.
1042		1745
1043	=item $windowid = $term->vt	1746	=item $windowid = $term->vt
1044		1747
1045	Return the window id of the terminal window.	1748	Return the window id of the terminal window.
1046		1749
		1750	=item $term->vt_emask_add ($x_event_mask)
		1751
		1752	Adds the specified events to the vt event mask. Useful e.g. when you want
		1753	to receive pointer events all the times:
		1754
		1755	$term->vt_emask_add (urxvt::PointerMotionMask);
		1756
		1757	=item $term->set_urgency ($set)
		1758
		1759	Enable/disable the urgency hint on the toplevel window.
		1760
		1761	=item $term->focus_in
		1762
		1763	=item $term->focus_out
		1764
		1765	=item $term->key_press ($state, $keycode[, $time])
		1766
		1767	=item $term->key_release ($state, $keycode[, $time])
		1768
		1769	Deliver various fake events to to terminal.
		1770
1047	=item $window_width = $term->width	1771	=item $window_width = $term->width
1048		1772
1049	=item $window_height = $term->height	1773	=item $window_height = $term->height
1050		1774
1051	=item $font_width = $term->fwidth	1775	=item $font_width = $term->fwidth
…		…
1064		1788
1065	=item $max_scrollback = $term->saveLines	1789	=item $max_scrollback = $term->saveLines
1066		1790
1067	=item $nrow_plus_saveLines = $term->total_rows	1791	=item $nrow_plus_saveLines = $term->total_rows
1068		1792
1069	=item $lines_in_scrollback = $term->nsaved	1793	=item $topmost_scrollback_row = $term->top_row
1070		1794
1071	Return various integers describing terminal characteristics.	1795	Return various integers describing terminal characteristics.
1072		1796
1073	=item $x_display = $term->display_id	1797	=item $x_display = $term->display_id
1074		1798
…		…
1081	=item $env = $term->env	1805	=item $env = $term->env
1082		1806
1083	Returns a copy of the environment in effect for the terminal as a hashref	1807	Returns a copy of the environment in effect for the terminal as a hashref
1084	similar to C<\%ENV>.	1808	similar to C<\%ENV>.
1085		1809
		1810	=item @envv = $term->envv
		1811
		1812	Returns the environment as array of strings of the form C<VAR=VALUE>.
		1813
		1814	=item @argv = $term->argv
		1815
		1816	Return the argument vector as this terminal, similar to @ARGV, but
		1817	includes the program name as first element.
		1818
1086	=cut	1819	=cut
1087		1820
1088	sub env {	1821	sub env {
1089	if (my $env = $_[0]->_env) {
1090	+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), @$env }	1822	+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), $_[0]->envv }
1091	} else {
1092	+{ %ENV }
1093	}
1094	}	1823	}
1095		1824
1096	=item $modifiermask = $term->ModLevel3Mask	1825	=item $modifiermask = $term->ModLevel3Mask
1097		1826
1098	=item $modifiermask = $term->ModMetaMask	1827	=item $modifiermask = $term->ModMetaMask
…		…
1100	=item $modifiermask = $term->ModNumLockMask	1829	=item $modifiermask = $term->ModNumLockMask
1101		1830
1102	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often	1831	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1103	AltGr), the meta key (often Alt) and the num lock key, if applicable.	1832	AltGr), the meta key (often Alt) and the num lock key, if applicable.
1104		1833
		1834	=item $screen = $term->current_screen
		1835
		1836	Returns the currently displayed screen (0 primary, 1 secondary).
		1837
		1838	=item $cursor_is_hidden = $term->hidden_cursor
		1839
		1840	Returns whether the cursor is currently hidden or not.
		1841
1105	=item $view_start = $term->view_start ([$newvalue])	1842	=item $view_start = $term->view_start ([$newvalue])
1106		1843
1107	Returns the negative row number of the topmost line. Minimum value is	1844	Returns the row number of the topmost displayed line. Maximum value is
1108	C<0>, which displays the normal terminal contents. Larger values scroll	1845	C<0>, which displays the normal terminal contents. Lower values scroll
1109	this many lines into the scrollback buffer.	1846	this many lines into the scrollback buffer.
1110		1847
1111	=item $term->want_refresh	1848	=item $term->want_refresh
1112		1849
1113	Requests a screen refresh. At the next opportunity, rxvt-unicode will	1850	Requests a screen refresh. At the next opportunity, rxvt-unicode will
…		…
1116		1853
1117	Used after changing terminal contents to display them.	1854	Used after changing terminal contents to display them.
1118		1855
1119	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])	1856	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
1120		1857
1121	Returns the text of the entire row with number C<$row_number>. Row C<0>	1858	Returns the text of the entire row with number C<$row_number>. Row C<< $term->top_row >>
1122	is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost	1859	is the topmost terminal line, row C<< $term->nrow-1 >> is the bottommost
1123	terminal line. The scrollback buffer starts at line C<-1> and extends to
1124	line C<< -$term->nsaved >>. Nothing will be returned if a nonexistent line	1860	terminal line. Nothing will be returned if a nonexistent line
1125	is requested.	1861	is requested.
1126		1862
1127	If C<$new_text> is specified, it will replace characters in the current	1863	If C<$new_text> is specified, it will replace characters in the current
1128	line, starting at column C<$start_col> (default C<0>), which is useful	1864	line, starting at column C<$start_col> (default C<0>), which is useful
1129	to replace only parts of a line. The font index in the rendition will	1865	to replace only parts of a line. The font index in the rendition will
1130	automatically be updated.	1866	automatically be updated.
1131		1867
1132	C<$text> is in a special encoding: tabs and wide characters that use more	1868	C<$text> is in a special encoding: tabs and wide characters that use more
1133	than one cell when displayed are padded with urxvt::NOCHAR characters	1869	than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
1134	(C<chr 65535>). Characters with combining characters and other characters	1870	characters. Characters with combining characters and other characters that
1135	that do not fit into the normal tetx encoding will be replaced with	1871	do not fit into the normal text encoding will be replaced with characters
1136	characters in the private use area.	1872	in the private use area.
1137		1873
1138	You have to obey this encoding when changing text. The advantage is	1874	You have to obey this encoding when changing text. The advantage is
1139	that C<substr> and similar functions work on screen cells and not on	1875	that C<substr> and similar functions work on screen cells and not on
1140	characters.	1876	characters.
1141		1877
…		…
1192	Return the row number of the first/last row of the line, respectively.	1928	Return the row number of the first/last row of the line, respectively.
1193		1929
1194	=item $offset = $line->offset_of ($row, $col)	1930	=item $offset = $line->offset_of ($row, $col)
1195		1931
1196	Returns the character offset of the given row|col pair within the logical	1932	Returns the character offset of the given row|col pair within the logical
1197	line.	1933	line. Works for rows outside the line, too, and returns corresponding
		1934	offsets outside the string.
1198		1935
1199	=item ($row, $col) = $line->coord_of ($offset)	1936	=item ($row, $col) = $line->coord_of ($offset)
1200		1937
1201	Translates a string offset into terminal coordinates again.	1938	Translates a string offset into terminal coordinates again.
1202		1939
…		…
1284	where one character corresponds to one screen cell. See	2021	where one character corresponds to one screen cell. See
1285	C<< $term->ROW_t >> for details.	2022	C<< $term->ROW_t >> for details.
1286		2023
1287	=item $string = $term->special_decode $text	2024	=item $string = $term->special_decode $text
1288		2025
1289	Converts rxvt-unicodes text reprsentation into a perl string. See	2026	Converts rxvt-unicodes text representation into a perl string. See
1290	C<< $term->ROW_t >> for details.	2027	C<< $term->ROW_t >> for details.
1291		2028
1292	=item $success = $term->grab_button ($button, $modifiermask)	2029	=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
1293		2030
		2031	=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
		2032
1294	Registers a synchronous button grab. See the XGrabButton manpage.	2033	Register/unregister a synchronous button grab. See the XGrabButton
		2034	manpage.
1295		2035
1296	=item $success = $term->grab ($eventtime[, $sync])	2036	=item $success = $term->grab ($eventtime[, $sync])
1297		2037
1298	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or	2038	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
1299	synchronous (C<$sync> is true). Also remembers the grab timestampe.	2039	synchronous (C<$sync> is true). Also remembers the grab timestamp.
1300		2040
1301	=item $term->allow_events_async	2041	=item $term->allow_events_async
1302		2042
1303	Calls XAllowEvents with AsyncBoth for the most recent grab.	2043	Calls XAllowEvents with AsyncBoth for the most recent grab.
1304		2044
…		…
1311	Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most	2051	Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
1312	recent grab.	2052	recent grab.
1313		2053
1314	=item $term->ungrab	2054	=item $term->ungrab
1315		2055
1316	Calls XUngrab for the most recent grab. Is called automatically on	2056	Calls XUngrabPointer and XUngrabKeyboard for the most recent grab. Is called automatically on
1317	evaluation errors, as it is better to lose the grab in the error case as	2057	evaluation errors, as it is better to lose the grab in the error case as
1318	the session.	2058	the session.
		2059
		2060	=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
		2061
		2062	=item $atom_name = $term->XGetAtomName ($atom)
		2063
		2064	=item @atoms = $term->XListProperties ($window)
		2065
		2066	=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
		2067
		2068	=item $term->XChangeProperty ($window, $property, $type, $format, $octets)
		2069
		2070	=item $term->XDeleteProperty ($window, $property)
		2071
		2072	=item $window = $term->DefaultRootWindow
		2073
		2074	=item $term->XReparentWindow ($window, $parent, [$x, $y])
		2075
		2076	=item $term->XMapWindow ($window)
		2077
		2078	=item $term->XUnmapWindow ($window)
		2079
		2080	=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
		2081
		2082	=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
		2083
		2084	=item $term->XChangeInput ($window, $add_events[, $del_events])
		2085
		2086	=item $keysym = $term->XStringToKeysym ($string)
		2087
		2088	=item $string = $term->XKeysymToString ($keysym)
		2089
		2090	Various X or X-related functions. The C<$term> object only serves as
		2091	the source of the display, otherwise those functions map more-or-less
		2092	directly onto the X functions of the same name.
1319		2093
1320	=back	2094	=back
1321		2095
1322	=cut	2096	=cut
1323		2097
…		…
1387	my ($self, $text, $cb) = @_;	2161	my ($self, $text, $cb) = @_;
1388		2162
1389	$self->add_item ({ type => "button", text => $text, activate => $cb});	2163	$self->add_item ({ type => "button", text => $text, activate => $cb});
1390	}	2164	}
1391		2165
1392	=item $popup->add_toggle ($text, $cb, $initial_value)	2166	=item $popup->add_toggle ($text, $initial_value, $cb)
1393		2167
1394	Adds a toggle/checkbox item to the popup. Teh callback gets called	2168	Adds a toggle/checkbox item to the popup. The callback gets called
1395	whenever it gets toggled, with a boolean indicating its value as its first	2169	whenever it gets toggled, with a boolean indicating its new value as its
1396	argument.	2170	first argument.
1397		2171
1398	=cut	2172	=cut
1399		2173
1400	sub add_toggle {	2174	sub add_toggle {
1401	my ($self, $text, $cb, $value) = @_;	2175	my ($self, $text, $value, $cb) = @_;
1402		2176
1403	my $item; $item = {	2177	my $item; $item = {
1404	type => "button",	2178	type => "button",
1405	text => " $text",	2179	text => " $text",
1406	value => $value,	2180	value => $value,
…		…
1425	my $env = $self->{term}->env;	2199	my $env = $self->{term}->env;
1426	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.	2200	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1427	delete $env->{LC_ALL};	2201	delete $env->{LC_ALL};
1428	$env->{LC_CTYPE} = $self->{term}->locale;	2202	$env->{LC_CTYPE} = $self->{term}->locale;
1429		2203
1430	urxvt::term->new ($env, $self->{term}->resource ("name"),	2204	my $term = urxvt::term->new (
1431	"--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0,	2205	$env, "popup",
		2206	"--perl-lib" => "", "--perl-ext-common" => "",
		2207	"-pty-fd" => -1, "-sl" => 0,
		2208	"-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1432	"--transient-for" => $self->{term}->parent,	2209	"--transient-for" => $self->{term}->parent,
1433	"-display" => $self->{term}->display_id,	2210	"-display" => $self->{term}->display_id,
1434	"-pe" => "urxvt-popup")	2211	"-pe" => "urxvt-popup",
1435	or die "unable to create popup window\n";	2212	) or die "unable to create popup window\n";
		2213
		2214	unless (delete $term->{urxvt_popup_init_done}) {
		2215	$term->ungrab;
		2216	$term->destroy;
		2217	die "unable to initialise popup window\n";
		2218	}
1436	}	2219	}
1437		2220
1438	sub DESTROY {	2221	sub DESTROY {
1439	my ($self) = @_;	2222	my ($self) = @_;
1440		2223
1441	delete $self->{term}{_destroy}{$self};	2224	delete $self->{term}{_destroy}{$self};
1442	$self->{term}->ungrab;	2225	$self->{term}->ungrab;
1443	}	2226	}
1444		2227
1445	=back	2228	=back
		2229
		2230	=cut
		2231
		2232	package urxvt::watcher;
1446		2233
1447	=head2 The C<urxvt::timer> Class	2234	=head2 The C<urxvt::timer> Class
1448		2235
1449	This class implements timer watchers/events. Time is represented as a	2236	This class implements timer watchers/events. Time is represented as a
1450	fractional number of seconds since the epoch. Example:	2237	fractional number of seconds since the epoch. Example:
…		…
1454	->new	2241	->new
1455	->interval (1)	2242	->interval (1)
1456	->cb (sub {	2243	->cb (sub {
1457	$term->{overlay}->set (0, 0,	2244	$term->{overlay}->set (0, 0,
1458	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);	2245	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
1459	});	2246	});
1460		2247
1461	=over 4	2248	=over 4
1462		2249
1463	=item $timer = new urxvt::timer	2250	=item $timer = new urxvt::timer
1464		2251
…		…
1467		2254
1468	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })	2255	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })
1469		2256
1470	Set the callback to be called when the timer triggers.	2257	Set the callback to be called when the timer triggers.
1471		2258
1472	=item $tstamp = $timer->at
1473
1474	Return the time this watcher will fire next.
1475
1476	=item $timer = $timer->set ($tstamp)	2259	=item $timer = $timer->set ($tstamp[, $interval])
1477		2260
1478	Set the time the event is generated to $tstamp.	2261	Set the time the event is generated to $tstamp (and optionally specifies a
		2262	new $interval).
1479		2263
1480	=item $timer = $timer->interval ($interval)	2264	=item $timer = $timer->interval ($interval)
1481		2265
1482	Normally (and when C<$interval> is C<0>), the timer will automatically	2266	By default (and when C<$interval> is C<0>), the timer will automatically
1483	stop after it has fired once. If C<$interval> is non-zero, then the timer	2267	stop after it has fired once. If C<$interval> is non-zero, then the timer
1484	is automatically rescheduled at the given intervals.	2268	is automatically rescheduled at the given intervals.
1485		2269
1486	=item $timer = $timer->start	2270	=item $timer = $timer->start
1487		2271
1488	Start the timer.	2272	Start the timer.
1489		2273
1490	=item $timer = $timer->start ($tstamp)	2274	=item $timer = $timer->start ($tstamp[, $interval])
1491		2275
1492	Set the event trigger time to C<$tstamp> and start the timer.	2276	Set the event trigger time to C<$tstamp> and start the timer. Optionally
		2277	also replaces the interval.
		2278
		2279	=item $timer = $timer->after ($delay[, $interval])
		2280
		2281	Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1493		2282
1494	=item $timer = $timer->stop	2283	=item $timer = $timer->stop
1495		2284
1496	Stop the timer.	2285	Stop the timer.
1497		2286
…		…
1503		2292
1504	$term->{socket} = ...	2293	$term->{socket} = ...
1505	$term->{iow} = urxvt::iow	2294	$term->{iow} = urxvt::iow
1506	->new	2295	->new
1507	->fd (fileno $term->{socket})	2296	->fd (fileno $term->{socket})
1508	->events (urxvt::EVENT_READ)	2297	->events (urxvt::EV_READ)
1509	->start	2298	->start
1510	->cb (sub {	2299	->cb (sub {
1511	my ($iow, $revents) = @_;	2300	my ($iow, $revents) = @_;
1512	# $revents must be 1 here, no need to check	2301	# $revents must be 1 here, no need to check
1513	sysread $term->{socket}, my $buf, 8192	2302	sysread $term->{socket}, my $buf, 8192
…		…
1526	Set the callback to be called when io events are triggered. C<$reventmask>	2315	Set the callback to be called when io events are triggered. C<$reventmask>
1527	is a bitset as described in the C<events> method.	2316	is a bitset as described in the C<events> method.
1528		2317
1529	=item $iow = $iow->fd ($fd)	2318	=item $iow = $iow->fd ($fd)
1530		2319
1531	Set the filedescriptor (not handle) to watch.	2320	Set the file descriptor (not handle) to watch.
1532		2321
1533	=item $iow = $iow->events ($eventmask)	2322	=item $iow = $iow->events ($eventmask)
1534		2323
1535	Set the event mask to watch. The only allowed values are	2324	Set the event mask to watch. The only allowed values are
1536	C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed	2325	C<urxvt::EV_READ> and C<urxvt::EV_WRITE>, which might be ORed
1537	together, or C<urxvt::EVENT_NONE>.	2326	together, or C<urxvt::EV_NONE>.
1538		2327
1539	=item $iow = $iow->start	2328	=item $iow = $iow->start
1540		2329
1541	Start watching for requested events on the given handle.	2330	Start watching for requested events on the given handle.
1542		2331
1543	=item $iow = $iow->stop	2332	=item $iow = $iow->stop
1544		2333
1545	Stop watching for events on the given filehandle.	2334	Stop watching for events on the given file handle.
		2335
		2336	=back
		2337
		2338	=head2 The C<urxvt::iw> Class
		2339
		2340	This class implements idle watchers, that get called automatically when
		2341	the process is idle. They should return as fast as possible, after doing
		2342	some useful work.
		2343
		2344	=over 4
		2345
		2346	=item $iw = new urxvt::iw
		2347
		2348	Create a new idle watcher object in stopped state.
		2349
		2350	=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
		2351
		2352	Set the callback to be called when the watcher triggers.
		2353
		2354	=item $timer = $timer->start
		2355
		2356	Start the watcher.
		2357
		2358	=item $timer = $timer->stop
		2359
		2360	Stop the watcher.
		2361
		2362	=back
		2363
		2364	=head2 The C<urxvt::pw> Class
		2365
		2366	This class implements process watchers. They create an event whenever a
		2367	process exits, after which they stop automatically.
		2368
		2369	my $pid = fork;
		2370	...
		2371	$term->{pw} = urxvt::pw
		2372	->new
		2373	->start ($pid)
		2374	->cb (sub {
		2375	my ($pw, $exit_status) = @_;
		2376	...
		2377	});
		2378
		2379	=over 4
		2380
		2381	=item $pw = new urxvt::pw
		2382
		2383	Create a new process watcher in stopped state.
		2384
		2385	=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
		2386
		2387	Set the callback to be called when the timer triggers.
		2388
		2389	=item $pw = $timer->start ($pid)
		2390
		2391	Tells the watcher to start watching for process C<$pid>.
		2392
		2393	=item $pw = $pw->stop
		2394
		2395	Stop the watcher.
1546		2396
1547	=back	2397	=back
1548		2398
1549	=head1 ENVIRONMENT	2399	=head1 ENVIRONMENT
1550		2400
…		…
1557		2407
1558	=item == 0 - fatal messages	2408	=item == 0 - fatal messages
1559		2409
1560	=item >= 3 - script loading and management	2410	=item >= 3 - script loading and management
1561		2411
1562	=item >=10 - all events received	2412	=item >=10 - all called hooks
		2413
		2414	=item >=11 - hook return values
1563		2415
1564	=back	2416	=back
1565		2417
1566	=head1 AUTHOR	2418	=head1 AUTHOR
1567		2419
1568	Marc Lehmann <pcg@goof.com>	2420	Marc Lehmann <schmorp@schmorp.de>
1569	http://software.schmorp.de/pkg/rxvt-unicode	2421	http://software.schmorp.de/pkg/rxvt-unicode
1570		2422
1571	=cut	2423	=cut
1572		2424
1573	1	2425	1
		2426
		2427	# vim: sw=3:

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