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Revision 1.69 by root, Mon Jan 9 22:41:41 2006 UTC vs.
Revision 1.216 by root, Sun Jun 10 13:32:55 2012 UTC

…		…
17		17
18	@@RXVT_NAME@@ --perl-lib $HOME -pe grab_test	18	@@RXVT_NAME@@ --perl-lib $HOME -pe grab_test
19		19
20	=head1 DESCRIPTION	20	=head1 DESCRIPTION
21		21
22	Everytime a terminal object gets created, extension scripts specified via	22	Every time a terminal object gets created, extension scripts specified via
23	the C<perl> resource are loaded and associated with it.	23	the C<perl> resource are loaded and associated with it.
24		24
25	Scripts are compiled in a 'use strict' and 'use utf8' environment, and	25	Scripts are compiled in a 'use strict "vars"' and 'use utf8' environment, and
26	thus must be encoded as UTF-8.	26	thus must be encoded as UTF-8.
27		27
28	Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where	28	Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where
29	scripts will be shared (but not enabled) for all terminals.	29	scripts will be shared (but not enabled) for all terminals.
30		30
31	=head2 Prepackaged Extensions	31	You can disable the embedded perl interpreter by setting both "perl-ext"
		32	and "perl-ext-common" resources to the empty string.
32		33
		34	=head1 PREPACKAGED EXTENSIONS
		35
33	This section describes the extensiosn delivered with this version. You can	36	This section describes the extensions delivered with this release. You can
34	find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.	37	find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.
35		38
36	You can activate them like this:	39	You can activate them like this:
37		40
38	@@RXVT_NAME@@ -pe <extensionname>	41	@@RXVT_NAME@@ -pe <extensionname>
39		42
		43	Or by adding them to the resource for extensions loaded by default:
		44
		45	URxvt.perl-ext-common: default,selection-autotransform
		46
40	=over 4	47	=over 4
41		48
42	=item selection (enabled by default)	49	=item selection (enabled by default)
43		50
44	Intelligent selection. This extension tries to be more intelligent when	51	(More) intelligent selection. This extension tries to be more intelligent
45	the user extends selections (double-click). Right now, it tries to select	52	when the user extends selections (double-click and further clicks). Right
46	urls and complete shell-quoted arguments, which is very convenient, too,	53	now, it tries to select words, urls and complete shell-quoted
47	if your F<ls> supports C<--quoting-style=shell>.	54	arguments, which is very convenient, too, if your F<ls> supports
		55	C<--quoting-style=shell>.
48		56
49	It also offers the following bindable event:	57	A double-click usually selects the word under the cursor, further clicks
		58	will enlarge the selection.
		59
		60	The selection works by trying to match a number of regexes and displaying
		61	them in increasing order of length. You can add your own regexes by
		62	specifying resources of the form:
		63
		64	URxvt.selection.pattern-0: perl-regex
		65	URxvt.selection.pattern-1: perl-regex
		66	...
		67
		68	The index number (0, 1...) must not have any holes, and each regex must
		69	contain at least one pair of capturing parentheses, which will be used for
		70	the match. For example, the following adds a regex that matches everything
		71	between two vertical bars:
		72
		73	URxvt.selection.pattern-0: \\|([^|]+)\\|
		74
		75	Another example: Programs I use often output "absolute path: " at the
		76	beginning of a line when they process multiple files. The following
		77	pattern matches the filename (note, there is a single space at the very
		78	end):
		79
		80	URxvt.selection.pattern-0: ^(/[^:]+):\
		81
		82	You can look at the source of the selection extension to see more
		83	interesting uses, such as parsing a line from beginning to end.
		84
		85	This extension also offers following bindable keyboard commands:
50		86
51	=over 4	87	=over 4
52		88
53	=item rot13	89	=item rot13
54		90
…		…
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.	122	text into various other formats/action (such as uri unescaping, perl
		123	evaluation, web-browser starting etc.), depending on content.
70		124
		125	Other extensions can extend this popup menu by pushing a code reference
		126	onto C<@{ $term->{selection_popup_hook} }>, which gets called whenever the
		127	popup is being displayed.
		128
		129	Its sole argument is the popup menu, which can be modified. The selection
		130	is in C<$_>, which can be used to decide whether to add something or not.
		131	It should either return nothing or a string and a code reference. The
		132	string will be used as button text and the code reference will be called
		133	when the button gets activated and should transform C<$_>.
		134
		135	The following will add an entry C<a to b> that transforms all C<a>s in
		136	the selection to C<b>s, but only if the selection currently contains any
		137	C<a>s:
		138
		139	push @{ $self->{term}{selection_popup_hook} }, sub {
		140	/a/ ? ("a to b" => sub { s/a/b/g }
		141	: ()
		142	};
		143
71	=item searchable-scrollback (enabled by default)	144	=item searchable-scrollback<hotkey> (enabled by default)
72		145
73	Adds regex search functionality to the scrollback buffer, triggered by a	146	Adds regex search functionality to the scrollback buffer, triggered
74	hotkey (default: C<M-s>). When in search mode, terminal input/output is	147	by a hotkey (default: C<M-s>). While in search mode, normal terminal
75	suspended, C</> starts an incremental regex search, C<n> searches further,	148	input/output is suspended and a regex is displayed at the bottom of the
76	C<p> jumps to the previous match. C<enter> leaves search mode at the	149	screen.
77	current position and C<escape> returns to the original position.
78		150
79	=item digital-clock	151	Inputting characters appends them to the regex and continues incremental
		152	search. C<BackSpace> removes a character from the regex, C<Up> and C<Down>
		153	search upwards/downwards in the scrollback buffer, C<End> jumps to the
		154	bottom. C<Escape> leaves search mode and returns to the point where search
		155	was started, while C<Enter> or C<Return> stay at the current position and
		156	additionally stores the first match in the current line into the primary
		157	selection if the C<Shift> modifier is active.
80		158
81	Displays a digital clock using the built-in overlay.	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.
82		162
83	=item mark-urls	163	See L<perlre> for more info about perl regular expression syntax.
84		164
		165	=item readline (enabled by default)
		166
		167	A support package that tries to make editing with readline easier. At
		168	the moment, it reacts to clicking shift-left mouse button by trying to
		169	move the text cursor to this position. It does so by generating as many
		170	cursor-left or cursor-right keypresses as required (this only works
		171	for programs that correctly support wide characters).
		172
		173	To avoid too many false positives, this is only done when:
		174
		175	=over 4
		176
		177	=item - the tty is in ICANON state.
		178
		179	=item - the text cursor is visible.
		180
		181	=item - the primary screen is currently being displayed.
		182
		183	=item - the mouse is on the same (multi-row-) line as the text cursor.
		184
		185	=back
		186
		187	The normal selection mechanism isn't disabled, so quick successive clicks
		188	might interfere with selection creation in harmless ways.
		189
		190	=item selection-autotransform
		191
		192	This selection allows you to do automatic transforms on a selection
		193	whenever a selection is made.
		194
		195	It works by specifying perl snippets (most useful is a single C<s///>
		196	operator) that modify C<$_> as resources:
		197
		198	URxvt.selection-autotransform.0: transform
		199	URxvt.selection-autotransform.1: transform
		200	...
		201
		202	For example, the following will transform selections of the form
		203	C<filename:number>, often seen in compiler messages, into C<vi +$filename
		204	$word>:
		205
		206	URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
		207
		208	And this example matches the same,but replaces it with vi-commands you can
		209	paste directly into your (vi :) editor:
		210
		211	URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
		212
		213	Of course, this can be modified to suit your needs and your editor :)
		214
		215	To expand the example above to typical perl error messages ("XXX at
		216	FILENAME line YYY."), you need a slightly more elaborate solution:
		217
		218	URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
		219	URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
		220
		221	The first line tells the selection code to treat the unchanging part of
		222	every error message as a selection pattern, and the second line transforms
		223	the message into vi commands to load the file.
		224
		225	=item tabbed
		226
		227	This transforms the terminal into a tabbar with additional terminals, that
		228	is, it implements what is commonly referred to as "tabbed terminal". The topmost line
		229	displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
		230	button per tab.
		231
		232	Clicking a button will activate that tab. Pressing B<Shift-Left> and
		233	B<Shift-Right> will switch to the tab left or right of the current one,
		234	while B<Shift-Down> creates a new tab.
		235
		236	The tabbar itself can be configured similarly to a normal terminal, but
		237	with a resource class of C<URxvt.tabbed>. In addition, it supports the
		238	following four resources (shown with defaults):
		239
		240	URxvt.tabbed.tabbar-fg: <colour-index, default 3>
		241	URxvt.tabbed.tabbar-bg: <colour-index, default 0>
		242	URxvt.tabbed.tab-fg: <colour-index, default 0>
		243	URxvt.tabbed.tab-bg: <colour-index, default 1>
		244
		245	See I<COLOR AND GRAPHICS> in the @@RXVT_NAME@@(1) manpage for valid
		246	indices.
		247
		248	=item matcher
		249
85	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.
86		315
87	=item block-graphics-to-ascii	316	=item block-graphics-to-ascii
88		317
89	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
90	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
91	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.
92		393
93	=item example-refresh-hooks	394	=item example-refresh-hooks
94		395
95	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
96	window. Illustrates overwriting the refresh callbacks to create your own	397	window. Illustrates overwriting the refresh callbacks to create your own
97	overlays or changes.	398	overlays or changes.
98		399
		400	=item confirm-paste
		401
		402	Displays a confirmation dialog when a paste containing at least a full
		403	line is detected.
		404
		405	=item bell-command
		406
		407	Runs the command specified by the C<URxvt.bell-command> resource when
		408	a bell event occurs. For example, the following pops up a notification
		409	bubble with the text "Beep, Beep" using notify-send:
		410
		411	URxvt.bell-command: notify-send "Beep, Beep"
		412
99	=back	413	=back
		414
		415	=head1 API DOCUMENTATION
100		416
101	=head2 General API Considerations	417	=head2 General API Considerations
102		418
103	All objects (such as terminals, time watchers etc.) are typical	419	All objects (such as terminals, time watchers etc.) are typical
104	reference-to-hash objects. The hash can be used to store anything you	420	reference-to-hash objects. The hash can be used to store anything you
…		…
116		432
117	=over 4	433	=over 4
118		434
119	=item $text	435	=item $text
120		436
121	Rxvt-unicodes special way of encoding text, where one "unicode" character	437	Rxvt-unicode's special way of encoding text, where one "unicode" character
122	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.
123		439
124	=item $string	440	=item $string
125		441
126	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
127	characters and is to be distinguished with text encoded in a specific	443	characters and is to be distinguished with text encoded in a specific
…		…
130	=item $octets	446	=item $octets
131		447
132	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
133	locale-specific way.	449	locale-specific way.
134		450
		451	=item $keysym
		452
		453	an integer that is a valid X11 keysym code. You can convert a string
		454	into a keysym and viceversa by using C<XStringToKeysym> and
		455	C<XKeysymToString>.
		456
135	=back	457	=back
136		458
137	=head2 Extension Objects	459	=head2 Extension Objects
138		460
139	Very perl extension is a perl class. A separate perl object is created	461	Every perl extension is a perl class. A separate perl object is created
140	for each terminal and each extension and passed as the first parameter to	462	for each terminal, and each terminal has its own set of extension objects,
141	hooks. So extensions can use their C<$self> object without having to think	463	which are passed as the first parameter to hooks. So extensions can use
142	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
143	begin with an underscore character C<_>: these are reserved for internal	466	that begin with an underscore character C<_>: these are reserved for
144	use.	467	internal use.
145		468
146	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
147	C<urxvt::term> class on this object.	470	C<urxvt::term> class on this object.
148		471
149	It has the following methods and data members:	472	It has the following methods and data members:
…		…
170	=head2 Hooks	493	=head2 Hooks
171		494
172	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
173	called whenever the relevant event happens.	496	called whenever the relevant event happens.
174		497
175	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
176	the in the C<Extension Objects> section.	499	the in the C<Extension Objects> section.
177		500
178	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
179	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
180	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.
181		504
182	I<< When in doubt, return a false value (preferably C<()>). >>	505	I<< When in doubt, return a false value (preferably C<()>). >>
183		506
184	=over 4	507	=over 4
185		508
186	=item on_init $term	509	=item on_init $term
187		510
188	Called after a new terminal object has been initialized, but before	511	Called after a new terminal object has been initialized, but before
189	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
190	call or deliver senseless data, as terminal size and other characteristics	513	call or deliver senseless data, as terminal size and other characteristics
191	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
192	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).
193		527
194	=item on_reset $term	528	=item on_reset $term
195		529
196	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
197	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
198	variables.	532	variables.
199		533
200	=item on_start $term	534	=item on_child_start $term, $pid
201		535
202	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.
203	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>.
204		542
205	=item on_sel_make $term, $eventtime	543	=item on_sel_make $term, $eventtime
206		544
207	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
208	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
…		…
215		553
216	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
217	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
218	by calling C<< $term->selection >>.	556	by calling C<< $term->selection >>.
219		557
220	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.
221		559
222	=item on_sel_extend $term	560	=item on_sel_extend $term
223		561
224	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
225	click) and is either supposed to return false (normal operation), or	563	click) and is either supposed to return false (normal operation), or
226	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
227	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.
228		568
229	See the F<selection> example extension.	569	See the F<selection> example extension.
230		570
231	=item on_view_change $term, $offset	571	=item on_view_change $term, $offset
232		572
233	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
234	scrolls. Offset C<0> means display the normal terminal, positive values	574	scrolls. Offset C<0> means display the normal terminal, positive values
235	show this many lines of scrollback.	575	show this many lines of scrollback.
236		576
237	=item on_scroll_back $term, $lines, $saved	577	=item on_scroll_back $term, $lines, $saved
238		578
…		…
242		582
243	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,	583	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
244	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total	584	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
245	number of lines that will be in the scrollback buffer.	585	number of lines that will be in the scrollback buffer.
246		586
247	=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, $resp
248		598
249	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =	599	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
250	operating system command) is processed. Cursor position and other state	600	operating system command) is processed. Cursor position and other state
251	information is up-to-date when this happens. For interoperability, the	601	information is up-to-date when this happens. For interoperability, the
252	string should start with the extension name and a colon, to distinguish	602	string should start with the extension name (sans -osc) and a semicolon,
253	it from commands for other extensions, and this might be enforced in the	603	to distinguish it from commands for other extensions, and this might be
254	future.	604	enforced in the future.
		605
		606	For example, C<overlay-osc> uses this:
		607
		608	sub on_osc_seq_perl {
		609	my ($self, $osc, $resp) = @_;
		610
		611	return unless $osc =~ s/^overlay;//;
		612
		613	... process remaining $osc string
		614	}
255		615
256	Be careful not ever to trust (in a security sense) the data you receive,	616	Be careful not ever to trust (in a security sense) the data you receive,
257	as its source can not easily be controleld (e-mail content, messages from	617	as its source can not easily be controlled (e-mail content, messages from
258	other users on the same system etc.).	618	other users on the same system etc.).
		619
		620	For responses, C<$resp> contains the end-of-args separator used by the
		621	sender.
259		622
260	=item on_add_lines $term, $string	623	=item on_add_lines $term, $string
261		624
262	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
263	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
264	and calling C<< $term->scr_add_lines >> yourself. Please note that this	627	and calling C<< $term->scr_add_lines >> yourself. Please note that this
265	might be very slow, however, as your hook is called for B<all> text being	628	might be very slow, however, as your hook is called for B<all> text being
266	output.	629	output.
267		630
		631	=item on_tt_write $term, $octets
		632
		633	Called whenever some data is written to the tty/pty and can be used to
		634	suppress or filter tty input.
		635
		636	=item on_tt_paste $term, $octets
		637
		638	Called whenever text is about to be pasted, with the text as argument. You
		639	can filter/change and paste the text yourself by returning a true value
		640	and calling C<< $term->tt_paste >> yourself. C<$octets> is
		641	locale-encoded.
		642
268	=item on_line_update $term, $row	643	=item on_line_update $term, $row
269		644
270	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
271	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
272	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,
…		…
279	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
280	you cannot just toggle rendition bits, but only set them.	655	you cannot just toggle rendition bits, but only set them.
281		656
282	=item on_refresh_begin $term	657	=item on_refresh_begin $term
283		658
284	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
285	or similar effects by modify terminal contents in refresh_begin, and	660	similar effects by modifying the terminal contents in refresh_begin, and
286	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
287	code is run after this hook, and takes precedence.	662	code is run after this hook, and takes precedence.
288		663
289	=item on_refresh_end $term	664	=item on_refresh_end $term
290		665
291	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>.
292		667
293	=item on_keyboard_command $term, $string	668	=item on_user_command $term, $string
294		669
295	Called whenever the user presses a key combination that has a	670	Called whenever a user-configured event is being activated (e.g. via
296	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>
297	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.
298		699
299	=item on_focus_in $term	700	=item on_focus_in $term
300		701
301	Called whenever the window gets the keyboard focus, before rxvt-unicode	702	Called whenever the window gets the keyboard focus, before rxvt-unicode
302	does focus in processing.	703	does focus in processing.
303		704
304	=item on_focus_out $term	705	=item on_focus_out $term
305		706
306	Called wheneever the window loses keyboard focus, before rxvt-unicode does	707	Called whenever the window loses keyboard focus, before rxvt-unicode does
307	focus out processing.	708	focus out processing.
308		709
		710	=item on_configure_notify $term, $event
		711
		712	=item on_property_notify $term, $event
		713
309	=item on_key_press $term, $event, $keysym, $octets	714	=item on_key_press $term, $event, $keysym, $octets
310		715
311	=item on_key_release $term, $event, $keysym	716	=item on_key_release $term, $event, $keysym
312		717
313	=item on_button_press $term, $event	718	=item on_button_press $term, $event
…		…
318		723
319	=item on_map_notify $term, $event	724	=item on_map_notify $term, $event
320		725
321	=item on_unmap_notify $term, $event	726	=item on_unmap_notify $term, $event
322		727
323	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
324	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.
325		730
326	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
327	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
328	and column under the mouse cursor.	733	(real, not screen-based) row and column under the mouse cursor.
329		734
330	C<on_key_press> additionally receives the string rxvt-unicode would	735	C<on_key_press> additionally receives the string rxvt-unicode would
331	output, if any, in locale-specific encoding.	736	output, if any, in locale-specific encoding.
332		737
333	subwindow.	738	subwindow.
334		739
		740	=item on_client_message $term, $event
		741
		742	=item on_wm_protocols $term, $event
		743
		744	=item on_wm_delete_window $term, $event
		745
		746	Called when various types of ClientMessage events are received (all with
		747	format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
		748
		749	=item on_bell $term
		750
		751	Called on receipt of a bell character.
		752
335	=back	753	=back
336		754
		755	=cut
		756
		757	package urxvt;
		758
		759	use utf8;
		760	use strict 'vars';
		761	use Carp ();
		762	use Scalar::Util ();
		763	use List::Util ();
		764
		765	our $VERSION = 1;
		766	our $TERM;
		767	our @TERM_INIT; # should go, prevents async I/O etc.
		768	our @TERM_EXT; # should go, prevents async I/O etc.
		769	our @HOOKNAME;
		770	our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
		771	our %OPTION;
		772
		773	our $LIBDIR;
		774	our $RESNAME;
		775	our $RESCLASS;
		776	our $RXVTNAME;
		777
		778	our $NOCHAR = chr 0xffff;
		779
337	=head2 Variables in the C<urxvt> Package	780	=head2 Variables in the C<urxvt> Package
338		781
339	=over 4	782	=over 4
		783
		784	=item $urxvt::LIBDIR
		785
		786	The rxvt-unicode library directory, where, among other things, the perl
		787	modules and scripts are stored.
		788
		789	=item $urxvt::RESCLASS, $urxvt::RESCLASS
		790
		791	The resource class and name rxvt-unicode uses to look up X resources.
		792
		793	=item $urxvt::RXVTNAME
		794
		795	The basename of the installed binaries, usually C<urxvt>.
340		796
341	=item $urxvt::TERM	797	=item $urxvt::TERM
342		798
343	The current terminal. This variable stores the current C<urxvt::term>	799	The current terminal. This variable stores the current C<urxvt::term>
344	object, whenever a callback/hook is executing.	800	object, whenever a callback/hook is executing.
345		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
346	=back	818	=back
347		819
348	=head2 Functions in the C<urxvt> Package	820	=head2 Functions in the C<urxvt> Package
349		821
350	=over 4	822	=over 4
351		823
352	=item $term = new urxvt [arg...]
353
354	Creates a new terminal, very similar as if you had started it with
355	C<system $binfile, arg...>. Croaks (and probably outputs an error message)
356	if the new instance couldn't be created. Returns C<undef> if the new
357	instance didn't initialise perl, and the terminal object otherwise. The
358	C<init> and C<start> hooks will be called during the call.
359
360	=item urxvt::fatal $errormessage	824	=item urxvt::fatal $errormessage
361		825
362	Fatally aborts execution with the given error message. Avoid at all	826	Fatally aborts execution with the given error message (which should
363	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
364	starts up.	828	is acceptable (and useful) is in the init hook, where it prevents the
		829	terminal from starting up.
365		830
366	=item urxvt::warn $string	831	=item urxvt::warn $string
367		832
368	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
369	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
370	that calls this function.	835	that calls this function.
371		836
372	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
373	correct place, e.g. on stderr of the connecting urxvtc client.	838	correct place, e.g. on stderr of the connecting urxvtc client.
374		839
375	=item $is_safe = urxvt::safe	840	Messages have a size limit of 1023 bytes currently.
376		841
377	Returns true when it is safe to do potentially unsafe things, such as	842	=item @terms = urxvt::termlist
378	evaluating perl code specified by the user. This is true when urxvt was	843
379	started setuid or setgid.	844	Returns all urxvt::term objects that exist in this process, regardless of
		845	whether they are started, being destroyed etc., so be careful. Only term
		846	objects that have perl extensions attached will be returned (because there
		847	is no urxvt::term object associated with others).
380		848
381	=item $time = urxvt::NOW	849	=item $time = urxvt::NOW
382		850
383	Returns the "current time" (as per the event loop).	851	Returns the "current time" (as per the event loop).
384		852
385	=item urxvt::CurrentTime	853	=item urxvt::CurrentTime
386		854
387	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,	855	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
388	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,	856	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
389	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
390		874
391	Various constants for use in X calls and event processing.	875	Various constants for use in X calls and event processing.
392		876
393	=back	877	=back
394		878
…		…
411		895
412	=item $rend = urxvt::OVERLAY_RSTYLE	896	=item $rend = urxvt::OVERLAY_RSTYLE
413		897
414	Return the rendition mask used for overlays by default.	898	Return the rendition mask used for overlays by default.
415		899
416	=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
417		902
418	Return the bit that enabled bold, italic, blink, reverse-video and	903	Return the bit that enabled bold, italic, blink, reverse-video and
419	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
420	the bitset.	905	the bitset.
421		906
…		…
423		908
424	=item $background = urxvt::GET_BASEBG $rend	909	=item $background = urxvt::GET_BASEBG $rend
425		910
426	Return the foreground/background colour index, respectively.	911	Return the foreground/background colour index, respectively.
427		912
428	=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)	913	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
429		914
430	=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)	915	=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
		916
		917	=item $rend = urxvt::SET_COLOR $rend, $new_fg, $new_bg
431		918
432	Replace the foreground/background colour in the rendition mask with the	919	Replace the foreground/background colour in the rendition mask with the
433	specified one.	920	specified one.
434		921
435	=item $value = urxvt::GET_CUSTOM ($rend)	922	=item $value = urxvt::GET_CUSTOM $rend
436		923
437	Return the "custom" value: Every rendition has 5 bits for use by	924	Return the "custom" value: Every rendition has 5 bits for use by
438	extensions. They can be set and changed as you like and are initially	925	extensions. They can be set and changed as you like and are initially
439	zero.	926	zero.
440		927
441	=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)	928	=item $rend = urxvt::SET_CUSTOM $rend, $new_value
442		929
443	Change the custom value.	930	Change the custom value.
444		931
445	=back	932	=back
446		933
447	=cut	934	=cut
448		935
449	package urxvt;
450
451	use utf8;
452	use strict;
453	use Carp ();
454	use Scalar::Util ();
455	use List::Util ();
456
457	our $VERSION = 1;
458	our $TERM;
459	our @HOOKNAME;
460	our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
461	our %OPTION;
462	our $LIBDIR;
463
464	BEGIN {	936	BEGIN {
465	urxvt->bootstrap;
466
467	# overwrite perl's warn	937	# overwrite perl's warn
468	*CORE::GLOBAL::warn = sub {	938	*CORE::GLOBAL::warn = sub {
469	my $msg = join "", @_;	939	my $msg = join "", @_;
470	$msg .= "\n"	940	$msg .= "\n"
471	unless $msg =~ /\n$/;	941	unless $msg =~ /\n$/;
472	urxvt::warn ($msg);	942	urxvt::warn ($msg);
473	};	943	};
474
475	delete $ENV{IFS};
476	delete $ENV{CDPATH};
477	delete $ENV{BASH_ENV};
478	$ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
479	}	944	}
480		945
481	my @hook_count;	946	no warnings 'utf8';
		947
		948	sub parse_resource {
		949	my ($term, $name, $isarg, $longopt, $flag, $value) = @_;
		950
		951	$name =~ y/-/./ if $isarg;
		952
		953	$term->scan_meta;
		954
		955	my $r = $term->{meta}{resource};
		956	keys %$r; # reste iterator
		957	while (my ($pattern, $v) = each %$r) {
		958	if (
		959	$pattern =~ /\.$/
		960	? $pattern eq substr $name, 0, length $pattern
		961	: $pattern eq $name
		962	) {
		963	$name = "$urxvt::RESCLASS.$name";
		964
		965	push @{ $term->{perl_ext_3} }, $v->[0];
		966
		967	if ($v->[1] eq "boolean") {
		968	$term->put_option_db ($name, $flag ? "true" : "false");
		969	return 1;
		970	} else {
		971	$term->put_option_db ($name, $value);
		972	return 1 + 2;
		973	}
		974	}
		975	}
		976
		977	0
		978	}
		979
		980	sub usage {
		981	my ($term, $usage_type) = @_;
		982
		983	$term->scan_meta;
		984
		985	my $r = $term->{meta}{resource};
		986
		987	for my $pattern (sort keys %$r) {
		988	my ($ext, $type, $desc) = @{ $r->{$pattern} };
		989
		990	$desc .= " (-pe $ext)";
		991
		992	if ($usage_type == 1) {
		993	$pattern =~ y/./-/;
		994	$pattern =~ s/-$/-.../g;
		995
		996	if ($type eq "boolean") {
		997	urxvt::log sprintf " -%-30s %s\n", "/+$pattern", $desc;
		998	} else {
		999	urxvt::log sprintf " -%-30s %s\n", "$pattern $type", $desc;
		1000	}
		1001	} else {
		1002	$pattern =~ s/\.$/.*/g;
		1003	urxvt::log sprintf " %-31s %s\n", "$pattern:", $type;
		1004	}
		1005	}
		1006	}
		1007
482	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};	1008	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
483		1009
484	sub verbose {	1010	sub verbose {
485	my ($level, $msg) = @_;	1011	my ($level, $msg) = @_;
486	warn "$msg\n" if $level <= $verbosity;	1012	warn "$msg\n" if $level <= $verbosity;
487	}	1013	}
488		1014
489	my $extension_pkg = "extension0000";
490	my %extension_pkg;	1015	my %extension_pkg;
491		1016
492	# load a single script into its own package, once only	1017	# load a single script into its own package, once only
493	sub extension_package($) {	1018	sub extension_package($) {
494	my ($path) = @_;	1019	my ($path) = @_;
495		1020
496	$extension_pkg{$path} ||= do {	1021	$extension_pkg{$path} ||= do {
497	my $pkg = "urxvt::" . ($extension_pkg++);	1022	$path =~ /([^\/\\]+)$/;
		1023	my $pkg = $1;
		1024	$pkg =~ s/[^[:word:]]/_/g;
		1025	$pkg = "urxvt::ext::$pkg";
498		1026
499	verbose 3, "loading extension '$path' into package '$pkg'";	1027	verbose 3, "loading extension '$path' into package '$pkg'";
500		1028
501	open my $fh, "<:raw", $path	1029	open my $fh, "<:raw", $path
502	or die "$path: $!";	1030	or die "$path: $!";
503		1031
504	my $source = untaint	1032	my $source =
505	"package $pkg; use strict; use utf8;\n"	1033	"package $pkg; use strict 'vars'; use utf8; no warnings 'utf8';\n"
506	. "use base urxvt::term::proxy::;\n"
507	. "#line 1 \"$path\"\n{\n"	1034	. "#line 1 \"$path\"\n{\n"
508	. (do { local $/; <$fh> })	1035	. (do { local $/; <$fh> })
509	. "\n};\n1";	1036	. "\n};\n1";
510		1037
511	eval $source	1038	eval $source
…		…
521	sub invoke {	1048	sub invoke {
522	local $TERM = shift;	1049	local $TERM = shift;
523	my $htype = shift;	1050	my $htype = shift;
524		1051
525	if ($htype == 0) { # INIT	1052	if ($htype == 0) { # INIT
526	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");	1053	my @dirs = $TERM->perl_libdirs;
527		1054
528	my %ext_arg;	1055	my %ext_arg;
529		1056
		1057	{
		1058	my @init = @TERM_INIT;
		1059	@TERM_INIT = ();
		1060	$_->($TERM) for @init;
		1061	my @pkg = @TERM_EXT;
		1062	@TERM_EXT = ();
		1063	$TERM->register_package ($_) for @pkg;
		1064	}
		1065
		1066	for (
		1067	@{ delete $TERM->{perl_ext_3} },
530	for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {	1068	grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2
		1069	) {
531	if ($_ eq "default") {	1070	if ($_ eq "default") {
532	$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback);	1071	$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
533	} elsif (/^-(.*)$/) {	1072	} elsif (/^-(.*)$/) {
534	delete $ext_arg{$1};	1073	delete $ext_arg{$1};
535	} elsif (/^([^<]+)<(.*)>$/) {	1074	} elsif (/^([^<]+)<(.*)>$/) {
536	push @{ $ext_arg{$1} }, $2;	1075	push @{ $ext_arg{$1} }, $2;
537	} else {	1076	} else {
538	$ext_arg{$_} ||= [];	1077	$ext_arg{$_} ||= [];
539	}	1078	}
540	}	1079	}
541		1080
542	while (my ($ext, $argv) = each %ext_arg) {	1081	for my $ext (sort keys %ext_arg) {
543	my @files = grep -f $_, map "$_/$ext", @dirs;	1082	my @files = grep -f $_, map "$_/$ext", @dirs;
544		1083
545	if (@files) {	1084	if (@files) {
546	$TERM->register_package (extension_package $files[0], $argv);	1085	$TERM->register_package (extension_package $files[0], $ext_arg{$ext});
547	} else {	1086	} else {
548	warn "perl extension '$ext' not found in perl library search path\n";	1087	warn "perl extension '$ext' not found in perl library search path\n";
549	}	1088	}
550	}	1089	}
551		1090
…		…
557		1096
558	if (my $cb = $TERM->{_hook}[$htype]) {	1097	if (my $cb = $TERM->{_hook}[$htype]) {
559	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"	1098	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
560	if $verbosity >= 10;	1099	if $verbosity >= 10;
561		1100
562	keys %$cb;	1101	for my $pkg (keys %$cb) {
563
564	while (my ($pkg, $cb) = each %$cb) {
565	$retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) }	1102	my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg}, @_) };
566	and last;	1103	$retval ||= $retval_;
567		1104
568	if ($@) {	1105	if ($@) {
569	$TERM->ungrab; # better to lose the grab than the session	1106	$TERM->ungrab; # better to lose the grab than the session
570	warn $@;	1107	warn $@;
571	}	1108	}
572	}	1109	}
		1110
		1111	verbose 11, "$HOOKNAME[$htype] returning <$retval>"
		1112	if $verbosity >= 11;
573	}	1113	}
574		1114
575	if ($htype == 1) { # DESTROY	1115	if ($htype == 1) { # DESTROY
576	if (my $hook = delete $TERM->{_hook}) {
577	for my $htype (0..$#$hook) {
578	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
579	or set_should_invoke $htype, 0;
580	}
581	}
582
583	# clear package objects	1116	# clear package objects
584	%$_ = () for values %{ $TERM->{_pkg} };	1117	%$_ = () for values %{ $TERM->{_pkg} };
585		1118
586	# clear package	1119	# clear package
587	%$TERM = ();	1120	%$TERM = ();
588	}	1121	}
589		1122
590	$retval	1123	$retval
591	}	1124	}
592		1125
593	# urxvt::term::proxy	1126	sub SET_COLOR($$$) {
		1127	SET_BGCOLOR (SET_FGCOLOR ($_[0], $_[1]), $_[2])
		1128	}
594		1129
		1130	sub rend2mask {
		1131	no strict 'refs';
		1132	my ($str, $mask) = (@_, 0);
		1133	my %color = ( fg => undef, bg => undef );
		1134	my @failed;
		1135	for my $spec ( split /\s+/, $str ) {
		1136	if ( $spec =~ /^([fb]g)[_:-]?(\d+)/i ) {
		1137	$color{lc($1)} = $2;
		1138	} else {
		1139	my $neg = $spec =~ s/^[-^]//;
		1140	unless ( exists &{"RS_$spec"} ) {
		1141	push @failed, $spec;
		1142	next;
		1143	}
		1144	my $cur = &{"RS_$spec"};
		1145	if ( $neg ) {
		1146	$mask &= ~$cur;
		1147	} else {
		1148	$mask |= $cur;
		1149	}
		1150	}
		1151	}
		1152	($mask, @color{qw(fg bg)}, \@failed)
		1153	}
		1154
		1155	# urxvt::term::extension
		1156
595	package urxvt::term::proxy;	1157	package urxvt::term::extension;
596		1158
597	sub enable {	1159	sub enable {
598	my ($self, %hook) = @_;	1160	my ($self, %hook) = @_;
599	my $pkg = $self->{_pkg};	1161	my $pkg = $self->{_pkg};
600		1162
601	while (my ($name, $cb) = each %hook) {	1163	while (my ($name, $cb) = each %hook) {
602	my $htype = $HOOKTYPE{uc $name};	1164	my $htype = $HOOKTYPE{uc $name};
603	defined $htype	1165	defined $htype
604	or Carp::croak "unsupported hook type '$name'";	1166	or Carp::croak "unsupported hook type '$name'";
605		1167
		1168	$self->set_should_invoke ($htype, +1)
606	unless (exists $self->{term}{_hook}[$htype]{$pkg}) {	1169	unless exists $self->{term}{_hook}[$htype]{$pkg};
607	$hook_count[$htype]++
608	or urxvt::set_should_invoke $htype, 1;
609	}
610		1170
611	$self->{term}{_hook}[$htype]{$pkg} = $cb;	1171	$self->{term}{_hook}[$htype]{$pkg} = $cb;
612	}	1172	}
613	}	1173	}
614		1174
…		…
619	for my $name (@hook) {	1179	for my $name (@hook) {
620	my $htype = $HOOKTYPE{uc $name};	1180	my $htype = $HOOKTYPE{uc $name};
621	defined $htype	1181	defined $htype
622	or Carp::croak "unsupported hook type '$name'";	1182	or Carp::croak "unsupported hook type '$name'";
623		1183
		1184	$self->set_should_invoke ($htype, -1)
624	if (delete $self->{term}{_hook}[$htype]{$pkg}) {	1185	if delete $self->{term}{_hook}[$htype]{$pkg};
625	--$hook_count[$htype]
626	or urxvt::set_should_invoke $htype, 0;
627	}
628	}	1186	}
629	}	1187	}
630		1188
631	our $AUTOLOAD;	1189	our $AUTOLOAD;
632		1190
…		…
663		1221
664	=head2 The C<urxvt::anyevent> Class	1222	=head2 The C<urxvt::anyevent> Class
665		1223
666	The sole purpose of this class is to deliver an interface to the	1224	The sole purpose of this class is to deliver an interface to the
667	C<AnyEvent> module - any module using it will work inside urxvt without	1225	C<AnyEvent> module - any module using it will work inside urxvt without
668	further work. The only exception is that you cannot wait on condition	1226	further programming. The only exception is that you cannot wait on
669	variables, but non-blocking condvar use is ok. What this means is that you	1227	condition variables, but non-blocking condvar use is ok.
670	cannot use blocking APIs, but the non-blocking variant should work.	1228
		1229	In practical terms this means is that you cannot use blocking APIs, but
		1230	the non-blocking variant should work.
671		1231
672	=cut	1232	=cut
673		1233
674	our $VERSION = 1;	1234	our $VERSION = '5.23';
675		1235
676	$INC{"urxvt/anyevent.pm"} = 1; # mark us as there	1236	$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
677	push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];	1237	push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
678		1238
679	sub timer {	1239	sub timer {
…		…
681		1241
682	my $cb = $arg{cb};	1242	my $cb = $arg{cb};
683		1243
684	urxvt::timer	1244	urxvt::timer
685	->new	1245	->new
686	->start (urxvt::NOW + $arg{after})	1246	->after ($arg{after}, $arg{interval})
687	->cb (sub {	1247	->cb ($arg{interval} ? $cb : sub {
688	$_[0]->stop; # need to cancel manually	1248	$_[0]->stop; # need to cancel manually
689	$cb->();	1249	$cb->();
690	})	1250	})
691	}	1251	}
692		1252
693	sub io {	1253	sub io {
694	my ($class, %arg) = @_;	1254	my ($class, %arg) = @_;
695		1255
696	my $cb = $arg{cb};	1256	my $cb = $arg{cb};
		1257	my $fd = fileno $arg{fh};
		1258	defined $fd or $fd = $arg{fh};
697		1259
698	bless [$arg{fh}, urxvt::iow	1260	bless [$arg{fh}, urxvt::iow
699	->new	1261	->new
700	->fd (fileno $arg{fh})	1262	->fd ($fd)
701	->events (($arg{poll} =~ /r/ ? 1 : 0)	1263	->events (($arg{poll} =~ /r/ ? 1 : 0)
702	| ($arg{poll} =~ /w/ ? 2 : 0))	1264	| ($arg{poll} =~ /w/ ? 2 : 0))
703	->start	1265	->start
704	->cb (sub {	1266	->cb ($cb)
705	$cb->(($_[1] & 1 ? 'r' : '')
706	. ($_[1] & 2 ? 'w' : ''));
707	})],
708	urxvt::anyevent::	1267	], urxvt::anyevent::
		1268	}
		1269
		1270	sub idle {
		1271	my ($class, %arg) = @_;
		1272
		1273	my $cb = $arg{cb};
		1274
		1275	urxvt::iw
		1276	->new
		1277	->start
		1278	->cb ($cb)
		1279	}
		1280
		1281	sub child {
		1282	my ($class, %arg) = @_;
		1283
		1284	my $cb = $arg{cb};
		1285
		1286	urxvt::pw
		1287	->new
		1288	->start ($arg{pid})
		1289	->cb (sub {
		1290	$_[0]->stop; # need to cancel manually
		1291	$cb->($_[0]->rpid, $_[0]->rstatus);
		1292	})
709	}	1293	}
710		1294
711	sub DESTROY {	1295	sub DESTROY {
712	$_[0][1]->stop;	1296	$_[0][1]->stop;
713	}	1297	}
714		1298
715	sub condvar {	1299	# only needed for AnyEvent < 6 compatibility
716	bless \my $flag, urxvt::anyevent::condvar::	1300	sub one_event {
717	}
718
719	sub urxvt::anyevent::condvar::broadcast {
720	${$_[0]}++;
721	}
722
723	sub urxvt::anyevent::condvar::wait {
724	unless (${$_[0]}) {
725	Carp::croak "AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API";	1301	Carp::croak "AnyEvent->one_event blocking wait unsupported in urxvt, use a non-blocking API";
726	}
727	}	1302	}
728		1303
729	package urxvt::term;	1304	package urxvt::term;
730		1305
731	=head2 The C<urxvt::term> Class	1306	=head2 The C<urxvt::term> Class
…		…
736		1311
737	# find on_xxx subs in the package and register them	1312	# find on_xxx subs in the package and register them
738	# as hooks	1313	# as hooks
739	sub register_package {	1314	sub register_package {
740	my ($self, $pkg, $argv) = @_;	1315	my ($self, $pkg, $argv) = @_;
		1316
		1317	no strict 'refs';
		1318
		1319	urxvt::verbose 6, "register package $pkg to $self";
		1320
		1321	@{"$pkg\::ISA"} = urxvt::term::extension::;
741		1322
742	my $proxy = bless {	1323	my $proxy = bless {
743	_pkg => $pkg,	1324	_pkg => $pkg,
744	argv => $argv,	1325	argv => $argv,
745	}, $pkg;	1326	}, $pkg;
…		…
752	$proxy->enable ($name => $ref);	1333	$proxy->enable ($name => $ref);
753	}	1334	}
754	}	1335	}
755	}	1336	}
756		1337
		1338	sub perl_libdirs {
		1339	map { split /:/ }
		1340	$_[0]->resource ("perl_lib"),
		1341	$ENV{URXVT_PERL_LIB},
		1342	"$ENV{HOME}/.urxvt/ext",
		1343	"$LIBDIR/perl"
		1344	}
		1345
		1346	sub scan_meta {
		1347	my ($self) = @_;
		1348	my @libdirs = perl_libdirs $self;
		1349
		1350	return if $self->{meta_libdirs} eq join "\x00", @libdirs;
		1351
		1352	my %meta;
		1353
		1354	$self->{meta_libdirs} = join "\x00", @libdirs;
		1355	$self->{meta} = \%meta;
		1356
		1357	for my $dir (reverse @libdirs) {
		1358	opendir my $fh, $dir
		1359	or next;
		1360	for my $ext (readdir $fh) {
		1361	$ext ne "."
		1362	and $ext ne ".."
		1363	and open my $fh, "<", "$dir/$ext"
		1364	or next;
		1365
		1366	while (<$fh>) {
		1367	if (/^#:META:X_RESOURCE:(.*)/) {
		1368	my ($pattern, $type, $desc) = split /:/, $1;
		1369	$pattern =~ s/^%(\.|$)/$ext$1/g; # % in pattern == extension name
		1370	if ($pattern =~ /[^a-zA-Z0-9\-\.]/) {
		1371	warn "$dir/$ext: meta resource '$pattern' contains illegal characters (not alphanumeric nor . nor *)\n";
		1372	} else {
		1373	$meta{resource}{$pattern} = [$ext, $type, $desc];
		1374	}
		1375	} elsif (/^\s*(?:#|$)/) {
		1376	# skip other comments and empty lines
		1377	} else {
		1378	last; # stop parsing on first non-empty non-comment line
		1379	}
		1380	}
		1381	}
		1382	}
		1383	}
		1384
		1385	=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
		1386
		1387	Creates a new terminal, very similar as if you had started it with system
		1388	C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
		1389	hash which defines the environment of the new terminal.
		1390
		1391	Croaks (and probably outputs an error message) if the new instance
		1392	couldn't be created. Returns C<undef> if the new instance didn't
		1393	initialise perl, and the terminal object otherwise. The C<init> and
		1394	C<start> hooks will be called before this call returns, and are free to
		1395	refer to global data (which is race free).
		1396
		1397	=cut
		1398
		1399	sub new {
		1400	my ($class, $env, @args) = @_;
		1401
		1402	$env or Carp::croak "environment hash missing in call to urxvt::term->new";
		1403	@args or Carp::croak "name argument missing in call to urxvt::term->new";
		1404
		1405	_new ([ map "$_=$env->{$_}", keys %$env ], \@args);
		1406	}
		1407
757	=item $term->destroy	1408	=item $term->destroy
758		1409
759	Destroy the terminal object (close the window, free resources etc.).	1410	Destroy the terminal object (close the window, free resources
		1411	etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
		1412	watchers (timers, io watchers) are still active.
		1413
		1414	=item $term->exec_async ($cmd[, @args])
		1415
		1416	Works like the combination of the C<fork>/C<exec> builtins, which executes
		1417	("starts") programs in the background. This function takes care of setting
		1418	the user environment before exec'ing the command (e.g. C<PATH>) and should
		1419	be preferred over explicit calls to C<exec> or C<system>.
		1420
		1421	Returns the pid of the subprocess or C<undef> on error.
		1422
		1423	=cut
		1424
		1425	sub exec_async {
		1426	my $self = shift;
		1427
		1428	my $pid = fork;
		1429
		1430	return $pid
		1431	if !defined $pid or $pid;
		1432
		1433	%ENV = %{ $self->env };
		1434
		1435	exec @_;
		1436	urxvt::_exit 255;
		1437	}
760		1438
761	=item $isset = $term->option ($optval[, $set])	1439	=item $isset = $term->option ($optval[, $set])
762		1440
763	Returns true if the option specified by C<$optval> is enabled, and	1441	Returns true if the option specified by C<$optval> is enabled, and
764	optionally change it. All option values are stored by name in the hash	1442	optionally change it. All option values are stored by name in the hash
765	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.	1443	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
766		1444
767	Here is a a likely non-exhaustive list of option names, please see the	1445	Here is a likely non-exhaustive list of option names, please see the
768	source file F</src/optinc.h> to see the actual list:	1446	source file F</src/optinc.h> to see the actual list:
769		1447
770	borderLess console cursorBlink cursorUnderline hold iconic insecure	1448	borderLess buffered console cursorBlink cursorUnderline hold iconic
771	intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage	1449	insecure intensityStyles iso14755 iso14755_52 jumpScroll loginShell
		1450	mapAlert meta8 mouseWheelScrollPage override_redirect pastableTabs
772	pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating	1451	pointerBlank reverseVideo scrollBar scrollBar_floating scrollBar_right
773	scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer	1452	scrollTtyKeypress scrollTtyOutput scrollWithBuffer secondaryScreen
774	secondaryScreen secondaryScroll skipBuiltinGlyphs transparent	1453	secondaryScroll skipBuiltinGlyphs skipScroll transparent tripleclickwords
775	tripleclickwords utmpInhibit visualBell	1454	urgentOnBell utmpInhibit visualBell
776		1455
777	=item $value = $term->resource ($name[, $newval])	1456	=item $value = $term->resource ($name[, $newval])
778		1457
779	Returns the current resource value associated with a given name and	1458	Returns the current resource value associated with a given name and
780	optionally sets a new value. Setting values is most useful in the C<init>	1459	optionally sets a new value. Setting values is most useful in the C<init>
…		…
789	likely change).	1468	likely change).
790		1469
791	Please note that resource strings will currently only be freed when the	1470	Please note that resource strings will currently only be freed when the
792	terminal is destroyed, so changing options frequently will eat memory.	1471	terminal is destroyed, so changing options frequently will eat memory.
793		1472
794	Here is a a likely non-exhaustive list of resource names, not all of which	1473	Here is a likely non-exhaustive list of resource names, not all of which
795	are supported in every build, please see the source file F</src/rsinc.h>	1474	are supported in every build, please see the source file F</src/rsinc.h>
796	to see the actual list:	1475	to see the actual list:
797		1476
798	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont	1477	answerbackstring backgroundPixmap backspace_key blendtype blurradius
799	borderLess color cursorBlink cursorUnderline cutchars delete_key	1478	boldFont boldItalicFont borderLess buffered chdir color cursorBlink
800	display_name embed ext_bwidth fade font geometry hold iconName	1479	cursorUnderline cutchars delete_key depth display_name embed ext_bwidth
801	imFont imLocale inputMethod insecure int_bwidth intensityStyles	1480	fade font geometry hold iconName iconfile imFont imLocale inputMethod
		1481	insecure int_bwidth intensityStyles iso14755 iso14755_52 italicFont
802	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier	1482	jumpScroll letterSpace lineSpace loginShell mapAlert meta8 modifier
803	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2	1483	mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
804	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd	1484	perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
805	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating	1485	preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
806	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput	1486	scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
807	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle	1487	scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
808	shade term_name title transparent transparent_all tripleclickwords	1488	secondaryScreen secondaryScroll shade skipBuiltinGlyphs skipScroll
		1489	term_name title transient_for transparent tripleclickwords urgentOnBell
809	utmpInhibit visualBell	1490	utmpInhibit visualBell
810		1491
811	=cut	1492	=cut
812		1493
813	sub resource($$;$) {	1494	sub resource($$;$) {
814	my ($self, $name) = (shift, shift);	1495	my ($self, $name) = (shift, shift);
815	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);	1496	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
816	&urxvt::term::_resource	1497	goto &urxvt::term::_resource
817	}	1498	}
818		1499
819	=item $success = $term->parse_keysym ($keysym_spec, $command_string)	1500	=item $value = $term->x_resource ($pattern)
820		1501
		1502	Returns the X-Resource for the given pattern, excluding the program or
		1503	class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
		1504	same value as used by this instance of rxvt-unicode. Returns C<undef> if no
		1505	resource with that pattern exists.
		1506
		1507	This method should only be called during the C<on_start> hook, as there is
		1508	only one resource database per display, and later invocations might return
		1509	the wrong resources.
		1510
		1511	=item $value = $term->x_resource_boolean ($pattern)
		1512
		1513	Like C<x_resource>, above, but interprets the string value as a boolean
		1514	and returns C<1> for true values, C<0> for false values and C<undef> if
		1515	the resource or option isn't specified.
		1516
		1517	You should always use this method to parse boolean resources.
		1518
		1519	=cut
		1520
		1521	sub x_resource_boolean {
		1522	my $res = &x_resource;
		1523
		1524	$res =~ /^\s*(?:true|yes|on|1)\s*$/i ? 1 : defined $res && 0
		1525	}
		1526
		1527	=item $success = $term->parse_keysym ($key, $octets)
		1528
821	Adds a keymap translation exactly as specified via a resource. See the	1529	Adds a key binding exactly as specified via a resource. See the
822	C<keysym> resource in the @@RXVT_NAME@@(1) manpage.	1530	C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
		1531
		1532	=item $term->register_command ($keysym, $modifiermask, $string)
		1533
		1534	Adds a key binding. This is a lower level api compared to
		1535	C<parse_keysym>, as it expects a parsed key description, and can be
		1536	used only inside either the C<on_init> hook, to add a binding, or the
		1537	C<on_register_command> hook, to modify a parsed binding.
823		1538
824	=item $rend = $term->rstyle ([$new_rstyle])	1539	=item $rend = $term->rstyle ([$new_rstyle])
825		1540
826	Return and optionally change the current rendition. Text that is output by	1541	Return and optionally change the current rendition. Text that is output by
827	the terminal application will use this style.	1542	the terminal application will use this style.
…		…
835		1550
836	=item ($row, $col) = $term->selection_beg ([$row, $col])	1551	=item ($row, $col) = $term->selection_beg ([$row, $col])
837		1552
838	=item ($row, $col) = $term->selection_end ([$row, $col])	1553	=item ($row, $col) = $term->selection_end ([$row, $col])
839		1554
840	Return the current values of the selection mark, begin or end positions,	1555	Return the current values of the selection mark, begin or end positions.
841	and optionally set them to new values.
842		1556
		1557	When arguments are given, then the selection coordinates are set to
		1558	C<$row> and C<$col>, and the selection screen is set to the current
		1559	screen.
		1560
		1561	=item $screen = $term->selection_screen ([$screen])
		1562
		1563	Returns the current selection screen, and then optionally sets it.
		1564
		1565	=item $term->selection_make ($eventtime[, $rectangular])
		1566
		1567	Tries to make a selection as set by C<selection_beg> and
		1568	C<selection_end>. If C<$rectangular> is true (default: false), a
		1569	rectangular selection will be made. This is the preferred function to make
		1570	a selection.
		1571
843	=item $success = $term->selection_grab ($eventtime)	1572	=item $success = $term->selection_grab ($eventtime[, $clipboard])
844		1573
845	Try to request the primary selection from the server (for example, as set	1574	Try to acquire ownership of the primary (clipboard if C<$clipboard> is
846	by the next method).	1575	true) selection from the server. The corresponding text can be set
		1576	with the next method. No visual feedback will be given. This function
		1577	is mostly useful from within C<on_sel_grab> hooks.
847		1578
848	=item $oldtext = $term->selection ([$newtext])	1579	=item $oldtext = $term->selection ([$newtext, $clipboard])
849		1580
850	Return the current selection text and optionally replace it by C<$newtext>.	1581	Return the current selection (clipboard if C<$clipboard> is true) text
		1582	and optionally replace it by C<$newtext>.
		1583
		1584	=item $term->selection_clear ([$clipboard])
		1585
		1586	Revoke ownership of the primary (clipboard if C<$clipboard> is true) selection.
851		1587
852	=item $term->overlay_simple ($x, $y, $text)	1588	=item $term->overlay_simple ($x, $y, $text)
853		1589
854	Create a simple multi-line overlay box. See the next method for details.	1590	Create a simple multi-line overlay box. See the next method for details.
855		1591
…		…
885		1621
886	The methods currently supported on C<urxvt::overlay> objects are:	1622	The methods currently supported on C<urxvt::overlay> objects are:
887		1623
888	=over 4	1624	=over 4
889		1625
890	=item $overlay->set ($x, $y, $text, $rend)	1626	=item $overlay->set ($x, $y, $text[, $rend])
891		1627
892	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts	1628	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts
893	text in rxvt-unicode's special encoding and an array of rendition values	1629	text in rxvt-unicode's special encoding and an array of rendition values
894	at a specific position inside the overlay.	1630	at a specific position inside the overlay.
		1631
		1632	If C<$rend> is missing, then the rendition will not be changed.
895		1633
896	=item $overlay->hide	1634	=item $overlay->hide
897		1635
898	If visible, hide the overlay, but do not destroy it.	1636	If visible, hide the overlay, but do not destroy it.
899		1637
…		…
941		1679
942	=item $string = $term->locale_decode ($octets)	1680	=item $string = $term->locale_decode ($octets)
943		1681
944	Convert the given locale-encoded octets into a perl string.	1682	Convert the given locale-encoded octets into a perl string.
945		1683
		1684	=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
		1685
		1686	XORs the rendition values in the given span with the provided value
		1687	(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
		1688	refresh hooks to provide effects similar to the selection.
		1689
		1690	=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
		1691
		1692	Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
		1693	whitespace will additionally be xored with the C<$rstyle2>, which defaults
		1694	to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
		1695	it instead. Both styles I<MUST NOT> contain font styles.
		1696
946	=item $term->scr_bell	1697	=item $term->scr_bell
947		1698
948	Ring the bell!	1699	Ring the bell!
949		1700
950	=item $term->scr_add_lines ($string)	1701	=item $term->scr_add_lines ($string)
…		…
956		1707
957	Normally its not a good idea to use this function, as programs might be	1708	Normally its not a good idea to use this function, as programs might be
958	confused by changes in cursor position or scrolling. Its useful inside a	1709	confused by changes in cursor position or scrolling. Its useful inside a
959	C<on_add_lines> hook, though.	1710	C<on_add_lines> hook, though.
960		1711
		1712	=item $term->scr_change_screen ($screen)
		1713
		1714	Switch to given screen - 0 primary, 1 secondary.
		1715
961	=item $term->cmd_parse ($octets)	1716	=item $term->cmd_parse ($octets)
962		1717
963	Similar to C<scr_add_lines>, but the argument must be in the	1718	Similar to C<scr_add_lines>, but the argument must be in the
964	locale-specific encoding of the terminal and can contain command sequences	1719	locale-specific encoding of the terminal and can contain command sequences
965	(escape codes) that will be interpreted.	1720	(escape codes) that will be interpreted.
966		1721
967	=item $term->tt_write ($octets)	1722	=item $term->tt_write ($octets)
968		1723
969	Write the octets given in C<$data> to the tty (i.e. as program input). To	1724	Write the octets given in C<$octets> to the tty (i.e. as program input). To
970	pass characters instead of octets, you should convert your strings first	1725	pass characters instead of octets, you should convert your strings first
971	to the locale-specific encoding using C<< $term->locale_encode >>.	1726	to the locale-specific encoding using C<< $term->locale_encode >>.
		1727
		1728	=item $term->tt_paste ($octets)
		1729
		1730	Write the octets given in C<$octets> to the tty as a paste, converting NL to
		1731	CR and bracketing the data with control sequences if bracketed paste mode
		1732	is set.
972		1733
973	=item $old_events = $term->pty_ev_events ([$new_events])	1734	=item $old_events = $term->pty_ev_events ([$new_events])
974		1735
975	Replaces the event mask of the pty watcher by the given event mask. Can	1736	Replaces the event mask of the pty watcher by the given event mask. Can
976	be used to suppress input and output handling to the pty/tty. See the	1737	be used to suppress input and output handling to the pty/tty. See the
977	description of C<< urxvt::timer->events >>. Make sure to always restore	1738	description of C<< urxvt::timer->events >>. Make sure to always restore
978	the previous value.	1739	the previous value.
979		1740
		1741	=item $fd = $term->pty_fd
		1742
		1743	Returns the master file descriptor for the pty in use, or C<-1> if no pty
		1744	is used.
		1745
980	=item $windowid = $term->parent	1746	=item $windowid = $term->parent
981		1747
982	Return the window id of the toplevel window.	1748	Return the window id of the toplevel window.
983		1749
984	=item $windowid = $term->vt	1750	=item $windowid = $term->vt
985		1751
986	Return the window id of the terminal window.	1752	Return the window id of the terminal window.
987		1753
		1754	=item $term->vt_emask_add ($x_event_mask)
		1755
		1756	Adds the specified events to the vt event mask. Useful e.g. when you want
		1757	to receive pointer events all the times:
		1758
		1759	$term->vt_emask_add (urxvt::PointerMotionMask);
		1760
		1761	=item $term->set_urgency ($set)
		1762
		1763	Enable/disable the urgency hint on the toplevel window.
		1764
		1765	=item $term->focus_in
		1766
		1767	=item $term->focus_out
		1768
		1769	=item $term->key_press ($state, $keycode[, $time])
		1770
		1771	=item $term->key_release ($state, $keycode[, $time])
		1772
		1773	Deliver various fake events to to terminal.
		1774
988	=item $window_width = $term->width	1775	=item $window_width = $term->width
989		1776
990	=item $window_height = $term->height	1777	=item $window_height = $term->height
991		1778
992	=item $font_width = $term->fwidth	1779	=item $font_width = $term->fwidth
…		…
1005		1792
1006	=item $max_scrollback = $term->saveLines	1793	=item $max_scrollback = $term->saveLines
1007		1794
1008	=item $nrow_plus_saveLines = $term->total_rows	1795	=item $nrow_plus_saveLines = $term->total_rows
1009		1796
1010	=item $lines_in_scrollback = $term->nsaved	1797	=item $topmost_scrollback_row = $term->top_row
1011		1798
1012	Return various integers describing terminal characteristics.	1799	Return various integers describing terminal characteristics.
1013		1800
		1801	=item $x_display = $term->display_id
		1802
		1803	Return the DISPLAY used by rxvt-unicode.
		1804
1014	=item $lc_ctype = $term->locale	1805	=item $lc_ctype = $term->locale
1015		1806
1016	Returns the LC_CTYPE category string used by this rxvt-unicode.	1807	Returns the LC_CTYPE category string used by this rxvt-unicode.
1017		1808
1018	=item $x_display = $term->display_id	1809	=item $env = $term->env
1019		1810
1020	Return the DISPLAY used by rxvt-unicode.	1811	Returns a copy of the environment in effect for the terminal as a hashref
		1812	similar to C<\%ENV>.
		1813
		1814	=item @envv = $term->envv
		1815
		1816	Returns the environment as array of strings of the form C<VAR=VALUE>.
		1817
		1818	=item @argv = $term->argv
		1819
		1820	Return the argument vector as this terminal, similar to @ARGV, but
		1821	includes the program name as first element.
		1822
		1823	=cut
		1824
		1825	sub env {
		1826	+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), $_[0]->envv }
		1827	}
1021		1828
1022	=item $modifiermask = $term->ModLevel3Mask	1829	=item $modifiermask = $term->ModLevel3Mask
1023		1830
1024	=item $modifiermask = $term->ModMetaMask	1831	=item $modifiermask = $term->ModMetaMask
1025		1832
1026	=item $modifiermask = $term->ModNumLockMask	1833	=item $modifiermask = $term->ModNumLockMask
1027		1834
1028	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often	1835	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1029	AltGr), the meta key (often Alt) and the num lock key, if applicable.	1836	AltGr), the meta key (often Alt) and the num lock key, if applicable.
1030		1837
		1838	=item $screen = $term->current_screen
		1839
		1840	Returns the currently displayed screen (0 primary, 1 secondary).
		1841
		1842	=item $cursor_is_hidden = $term->hidden_cursor
		1843
		1844	Returns whether the cursor is currently hidden or not.
		1845
1031	=item $view_start = $term->view_start ([$newvalue])	1846	=item $view_start = $term->view_start ([$newvalue])
1032		1847
1033	Returns the negative row number of the topmost line. Minimum value is	1848	Returns the row number of the topmost displayed line. Maximum value is
1034	C<0>, which displays the normal terminal contents. Larger values scroll	1849	C<0>, which displays the normal terminal contents. Lower values scroll
1035	this many lines into the scrollback buffer.	1850	this many lines into the scrollback buffer.
1036		1851
1037	=item $term->want_refresh	1852	=item $term->want_refresh
1038		1853
1039	Requests a screen refresh. At the next opportunity, rxvt-unicode will	1854	Requests a screen refresh. At the next opportunity, rxvt-unicode will
…		…
1042		1857
1043	Used after changing terminal contents to display them.	1858	Used after changing terminal contents to display them.
1044		1859
1045	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])	1860	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
1046		1861
1047	Returns the text of the entire row with number C<$row_number>. Row C<0>	1862	Returns the text of the entire row with number C<$row_number>. Row C<< $term->top_row >>
1048	is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost	1863	is the topmost terminal line, row C<< $term->nrow-1 >> is the bottommost
1049	terminal line. The scrollback buffer starts at line C<-1> and extends to
1050	line C<< -$term->nsaved >>. Nothing will be returned if a nonexistent line	1864	terminal line. Nothing will be returned if a nonexistent line
1051	is requested.	1865	is requested.
1052		1866
1053	If C<$new_text> is specified, it will replace characters in the current	1867	If C<$new_text> is specified, it will replace characters in the current
1054	line, starting at column C<$start_col> (default C<0>), which is useful	1868	line, starting at column C<$start_col> (default C<0>), which is useful
1055	to replace only parts of a line. The font index in the rendition will	1869	to replace only parts of a line. The font index in the rendition will
1056	automatically be updated.	1870	automatically be updated.
1057		1871
1058	C<$text> is in a special encoding: tabs and wide characters that use more	1872	C<$text> is in a special encoding: tabs and wide characters that use more
1059	than one cell when displayed are padded with urxvt::NOCHAR characters	1873	than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
1060	(C<chr 65535>). Characters with combining characters and other characters	1874	characters. Characters with combining characters and other characters that
1061	that do not fit into the normal tetx encoding will be replaced with	1875	do not fit into the normal text encoding will be replaced with characters
1062	characters in the private use area.	1876	in the private use area.
1063		1877
1064	You have to obey this encoding when changing text. The advantage is	1878	You have to obey this encoding when changing text. The advantage is
1065	that C<substr> and similar functions work on screen cells and not on	1879	that C<substr> and similar functions work on screen cells and not on
1066	characters.	1880	characters.
1067		1881
…		…
1118	Return the row number of the first/last row of the line, respectively.	1932	Return the row number of the first/last row of the line, respectively.
1119		1933
1120	=item $offset = $line->offset_of ($row, $col)	1934	=item $offset = $line->offset_of ($row, $col)
1121		1935
1122	Returns the character offset of the given row|col pair within the logical	1936	Returns the character offset of the given row|col pair within the logical
1123	line.	1937	line. Works for rows outside the line, too, and returns corresponding
		1938	offsets outside the string.
1124		1939
1125	=item ($row, $col) = $line->coord_of ($offset)	1940	=item ($row, $col) = $line->coord_of ($offset)
1126		1941
1127	Translates a string offset into terminal coordinates again.	1942	Translates a string offset into terminal coordinates again.
1128		1943
…		…
1210	where one character corresponds to one screen cell. See	2025	where one character corresponds to one screen cell. See
1211	C<< $term->ROW_t >> for details.	2026	C<< $term->ROW_t >> for details.
1212		2027
1213	=item $string = $term->special_decode $text	2028	=item $string = $term->special_decode $text
1214		2029
1215	Converts rxvt-unicodes text reprsentation into a perl string. See	2030	Converts rxvt-unicodes text representation into a perl string. See
1216	C<< $term->ROW_t >> for details.	2031	C<< $term->ROW_t >> for details.
1217		2032
1218	=item $success = $term->grab_button ($button, $modifiermask)	2033	=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
1219		2034
		2035	=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
		2036
1220	Registers a synchronous button grab. See the XGrabButton manpage.	2037	Register/unregister a synchronous button grab. See the XGrabButton
		2038	manpage.
1221		2039
1222	=item $success = $term->grab ($eventtime[, $sync])	2040	=item $success = $term->grab ($eventtime[, $sync])
1223		2041
1224	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or	2042	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
1225	synchronous (C<$sync> is true). Also remembers the grab timestampe.	2043	synchronous (C<$sync> is true). Also remembers the grab timestamp.
1226		2044
1227	=item $term->allow_events_async	2045	=item $term->allow_events_async
1228		2046
1229	Calls XAllowEvents with AsyncBoth for the most recent grab.	2047	Calls XAllowEvents with AsyncBoth for the most recent grab.
1230		2048
…		…
1237	Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most	2055	Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
1238	recent grab.	2056	recent grab.
1239		2057
1240	=item $term->ungrab	2058	=item $term->ungrab
1241		2059
1242	Calls XUngrab for the most recent grab. Is called automatically on	2060	Calls XUngrabPointer and XUngrabKeyboard for the most recent grab. Is called automatically on
1243	evaluation errors, as it is better to lose the grab in the error case as	2061	evaluation errors, as it is better to lose the grab in the error case as
1244	the session.	2062	the session.
		2063
		2064	=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
		2065
		2066	=item $atom_name = $term->XGetAtomName ($atom)
		2067
		2068	=item @atoms = $term->XListProperties ($window)
		2069
		2070	=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
		2071
		2072	=item $term->XChangeProperty ($window, $property, $type, $format, $octets)
		2073
		2074	=item $term->XDeleteProperty ($window, $property)
		2075
		2076	=item $window = $term->DefaultRootWindow
		2077
		2078	=item $term->XReparentWindow ($window, $parent, [$x, $y])
		2079
		2080	=item $term->XMapWindow ($window)
		2081
		2082	=item $term->XUnmapWindow ($window)
		2083
		2084	=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
		2085
		2086	=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
		2087
		2088	=item $term->XChangeInput ($window, $add_events[, $del_events])
		2089
		2090	=item $keysym = $term->XStringToKeysym ($string)
		2091
		2092	=item $string = $term->XKeysymToString ($keysym)
		2093
		2094	Various X or X-related functions. The C<$term> object only serves as
		2095	the source of the display, otherwise those functions map more-or-less
		2096	directly onto the X functions of the same name.
1245		2097
1246	=back	2098	=back
1247		2099
1248	=cut	2100	=cut
1249		2101
…		…
1264		2116
1265	$item->{render} ||= sub { $_[0]{text} };	2117	$item->{render} ||= sub { $_[0]{text} };
1266		2118
1267	push @{ $self->{item} }, $item;	2119	push @{ $self->{item} }, $item;
1268	}	2120	}
		2121
		2122	=item $popup->add_title ($title)
		2123
		2124	Adds a non-clickable title to the popup.
		2125
		2126	=cut
		2127
		2128	sub add_title {
		2129	my ($self, $title) = @_;
		2130
		2131	$self->add_item ({
		2132	rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
		2133	text => $title,
		2134	activate => sub { },
		2135	});
		2136	}
		2137
		2138	=item $popup->add_separator ([$sepchr])
		2139
		2140	Creates a separator, optionally using the character given as C<$sepchr>.
		2141
		2142	=cut
1269		2143
1270	sub add_separator {	2144	sub add_separator {
1271	my ($self, $sep) = @_;	2145	my ($self, $sep) = @_;
1272		2146
1273	$sep ||= "=";	2147	$sep ||= "=";
…		…
1278	render => sub { $sep x $self->{term}->ncol },	2152	render => sub { $sep x $self->{term}->ncol },
1279	activate => sub { },	2153	activate => sub { },
1280	});	2154	});
1281	}	2155	}
1282		2156
1283	sub add_title {	2157	=item $popup->add_button ($text, $cb)
1284	my ($self, $title) = @_;
1285		2158
1286	$self->add_item ({	2159	Adds a clickable button to the popup. C<$cb> is called whenever it is
1287	rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },	2160	selected.
1288	text => $title,	2161
1289	activate => sub { },	2162	=cut
1290	});
1291	}
1292		2163
1293	sub add_button {	2164	sub add_button {
1294	my ($self, $text, $cb) = @_;	2165	my ($self, $text, $cb) = @_;
1295		2166
1296	$self->add_item ({ type => "button", text => $text, activate => $cb});	2167	$self->add_item ({ type => "button", text => $text, activate => $cb});
1297	}	2168	}
1298		2169
		2170	=item $popup->add_toggle ($text, $initial_value, $cb)
		2171
		2172	Adds a toggle/checkbox item to the popup. The callback gets called
		2173	whenever it gets toggled, with a boolean indicating its new value as its
		2174	first argument.
		2175
		2176	=cut
		2177
1299	sub add_toggle {	2178	sub add_toggle {
1300	my ($self, $text, $cb, $value) = @_;	2179	my ($self, $text, $value, $cb) = @_;
1301		2180
1302	my $item; $item = {	2181	my $item; $item = {
1303	type => "button",	2182	type => "button",
1304	text => " $text",	2183	text => " $text",
1305	value => $value,	2184	value => $value,
1306	render => sub { ($_[0]{value} ? "* " : " ") . $text },	2185	render => sub { ($_[0]{value} ? "* " : " ") . $text },
1307	activate => sub { $cb->($_[0]{value} = !$_[0]{value}); },	2186	activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
1308	};	2187	};
1309		2188
1310	$self->add_item ($item);	2189	$self->add_item ($item);
1311	}	2190	}
		2191
		2192	=item $popup->show
		2193
		2194	Displays the popup (which is initially hidden).
		2195
		2196	=cut
1312		2197
1313	sub show {	2198	sub show {
1314	my ($self) = @_;	2199	my ($self) = @_;
1315		2200
1316	local $urxvt::popup::self = $self;	2201	local $urxvt::popup::self = $self;
1317		2202
		2203	my $env = $self->{term}->env;
		2204	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
		2205	delete $env->{LC_ALL};
1318	local $ENV{LC_ALL} = $self->{term}->locale;	2206	$env->{LC_CTYPE} = $self->{term}->locale;
1319		2207
1320	urxvt->new ("--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0,	2208	my $term = urxvt::term->new (
		2209	$env, "popup",
		2210	"--perl-lib" => "", "--perl-ext-common" => "",
		2211	"-pty-fd" => -1, "-sl" => 0,
		2212	"-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1321	"--transient-for" => $self->{term}->parent,	2213	"--transient-for" => $self->{term}->parent,
1322	"-display" => $self->{term}->display_id,	2214	"-display" => $self->{term}->display_id,
1323	"-pe" => "urxvt-popup")	2215	"-pe" => "urxvt-popup",
1324	or die "unable to create popup window\n";	2216	) or die "unable to create popup window\n";
		2217
		2218	unless (delete $term->{urxvt_popup_init_done}) {
		2219	$term->ungrab;
		2220	$term->destroy;
		2221	die "unable to initialise popup window\n";
		2222	}
1325	}	2223	}
1326		2224
1327	sub DESTROY {	2225	sub DESTROY {
1328	my ($self) = @_;	2226	my ($self) = @_;
1329		2227
1330	delete $self->{term}{_destroy}{$self};	2228	delete $self->{term}{_destroy}{$self};
1331	$self->{term}->ungrab;	2229	$self->{term}->ungrab;
1332	}	2230	}
		2231
		2232	=back
		2233
		2234	=cut
		2235
		2236	package urxvt::watcher;
1333		2237
1334	=head2 The C<urxvt::timer> Class	2238	=head2 The C<urxvt::timer> Class
1335		2239
1336	This class implements timer watchers/events. Time is represented as a	2240	This class implements timer watchers/events. Time is represented as a
1337	fractional number of seconds since the epoch. Example:	2241	fractional number of seconds since the epoch. Example:
…		…
1341	->new	2245	->new
1342	->interval (1)	2246	->interval (1)
1343	->cb (sub {	2247	->cb (sub {
1344	$term->{overlay}->set (0, 0,	2248	$term->{overlay}->set (0, 0,
1345	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);	2249	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
1346	});	2250	});
1347		2251
1348	=over 4	2252	=over 4
1349		2253
1350	=item $timer = new urxvt::timer	2254	=item $timer = new urxvt::timer
1351		2255
…		…
1354		2258
1355	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })	2259	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })
1356		2260
1357	Set the callback to be called when the timer triggers.	2261	Set the callback to be called when the timer triggers.
1358		2262
1359	=item $tstamp = $timer->at
1360
1361	Return the time this watcher will fire next.
1362
1363	=item $timer = $timer->set ($tstamp)	2263	=item $timer = $timer->set ($tstamp[, $interval])
1364		2264
1365	Set the time the event is generated to $tstamp.	2265	Set the time the event is generated to $tstamp (and optionally specifies a
		2266	new $interval).
1366		2267
1367	=item $timer = $timer->interval ($interval)	2268	=item $timer = $timer->interval ($interval)
1368		2269
1369	Normally (and when C<$interval> is C<0>), the timer will automatically	2270	By default (and when C<$interval> is C<0>), the timer will automatically
1370	stop after it has fired once. If C<$interval> is non-zero, then the timer	2271	stop after it has fired once. If C<$interval> is non-zero, then the timer
1371	is automatically rescheduled at the given intervals.	2272	is automatically rescheduled at the given intervals.
1372		2273
1373	=item $timer = $timer->start	2274	=item $timer = $timer->start
1374		2275
1375	Start the timer.	2276	Start the timer.
1376		2277
1377	=item $timer = $timer->start ($tstamp)	2278	=item $timer = $timer->start ($tstamp[, $interval])
1378		2279
1379	Set the event trigger time to C<$tstamp> and start the timer.	2280	Set the event trigger time to C<$tstamp> and start the timer. Optionally
		2281	also replaces the interval.
		2282
		2283	=item $timer = $timer->after ($delay[, $interval])
		2284
		2285	Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1380		2286
1381	=item $timer = $timer->stop	2287	=item $timer = $timer->stop
1382		2288
1383	Stop the timer.	2289	Stop the timer.
1384		2290
…		…
1390		2296
1391	$term->{socket} = ...	2297	$term->{socket} = ...
1392	$term->{iow} = urxvt::iow	2298	$term->{iow} = urxvt::iow
1393	->new	2299	->new
1394	->fd (fileno $term->{socket})	2300	->fd (fileno $term->{socket})
1395	->events (urxvt::EVENT_READ)	2301	->events (urxvt::EV_READ)
1396	->start	2302	->start
1397	->cb (sub {	2303	->cb (sub {
1398	my ($iow, $revents) = @_;	2304	my ($iow, $revents) = @_;
1399	# $revents must be 1 here, no need to check	2305	# $revents must be 1 here, no need to check
1400	sysread $term->{socket}, my $buf, 8192	2306	sysread $term->{socket}, my $buf, 8192
…		…
1413	Set the callback to be called when io events are triggered. C<$reventmask>	2319	Set the callback to be called when io events are triggered. C<$reventmask>
1414	is a bitset as described in the C<events> method.	2320	is a bitset as described in the C<events> method.
1415		2321
1416	=item $iow = $iow->fd ($fd)	2322	=item $iow = $iow->fd ($fd)
1417		2323
1418	Set the filedescriptor (not handle) to watch.	2324	Set the file descriptor (not handle) to watch.
1419		2325
1420	=item $iow = $iow->events ($eventmask)	2326	=item $iow = $iow->events ($eventmask)
1421		2327
1422	Set the event mask to watch. The only allowed values are	2328	Set the event mask to watch. The only allowed values are
1423	C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed	2329	C<urxvt::EV_READ> and C<urxvt::EV_WRITE>, which might be ORed
1424	together, or C<urxvt::EVENT_NONE>.	2330	together, or C<urxvt::EV_NONE>.
1425		2331
1426	=item $iow = $iow->start	2332	=item $iow = $iow->start
1427		2333
1428	Start watching for requested events on the given handle.	2334	Start watching for requested events on the given handle.
1429		2335
1430	=item $iow = $iow->stop	2336	=item $iow = $iow->stop
1431		2337
1432	Stop watching for events on the given filehandle.	2338	Stop watching for events on the given file handle.
		2339
		2340	=back
		2341
		2342	=head2 The C<urxvt::iw> Class
		2343
		2344	This class implements idle watchers, that get called automatically when
		2345	the process is idle. They should return as fast as possible, after doing
		2346	some useful work.
		2347
		2348	=over 4
		2349
		2350	=item $iw = new urxvt::iw
		2351
		2352	Create a new idle watcher object in stopped state.
		2353
		2354	=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
		2355
		2356	Set the callback to be called when the watcher triggers.
		2357
		2358	=item $timer = $timer->start
		2359
		2360	Start the watcher.
		2361
		2362	=item $timer = $timer->stop
		2363
		2364	Stop the watcher.
		2365
		2366	=back
		2367
		2368	=head2 The C<urxvt::pw> Class
		2369
		2370	This class implements process watchers. They create an event whenever a
		2371	process exits, after which they stop automatically.
		2372
		2373	my $pid = fork;
		2374	...
		2375	$term->{pw} = urxvt::pw
		2376	->new
		2377	->start ($pid)
		2378	->cb (sub {
		2379	my ($pw, $exit_status) = @_;
		2380	...
		2381	});
		2382
		2383	=over 4
		2384
		2385	=item $pw = new urxvt::pw
		2386
		2387	Create a new process watcher in stopped state.
		2388
		2389	=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
		2390
		2391	Set the callback to be called when the timer triggers.
		2392
		2393	=item $pw = $timer->start ($pid)
		2394
		2395	Tells the watcher to start watching for process C<$pid>.
		2396
		2397	=item $pw = $pw->stop
		2398
		2399	Stop the watcher.
1433		2400
1434	=back	2401	=back
1435		2402
1436	=head1 ENVIRONMENT	2403	=head1 ENVIRONMENT
1437		2404
…		…
1444		2411
1445	=item == 0 - fatal messages	2412	=item == 0 - fatal messages
1446		2413
1447	=item >= 3 - script loading and management	2414	=item >= 3 - script loading and management
1448		2415
1449	=item >=10 - all events received	2416	=item >=10 - all called hooks
		2417
		2418	=item >=11 - hook return values
1450		2419
1451	=back	2420	=back
1452		2421
1453	=head1 AUTHOR	2422	=head1 AUTHOR
1454		2423
1455	Marc Lehmann <pcg@goof.com>	2424	Marc Lehmann <schmorp@schmorp.de>
1456	http://software.schmorp.de/pkg/rxvt-unicode	2425	http://software.schmorp.de/pkg/rxvt-unicode
1457		2426
1458	=cut	2427	=cut
1459		2428
1460	1	2429	1
		2430
		2431	# vim: sw=3:

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