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Revision 1.54 by root, Sun Jan 8 01:59:29 2006 UTC vs.
Revision 1.205 by root, Tue Jun 5 19:32:29 2012 UTC

…		…
17		17
18	@@RXVT_NAME@@ --perl-lib $HOME -pe grab_test	18	@@RXVT_NAME@@ --perl-lib $HOME -pe grab_test
19		19
20	=head1 DESCRIPTION	20	=head1 DESCRIPTION
21		21
22	Everytime a terminal object gets created, extension scripts specified via	22	Every time a terminal object gets created, extension scripts specified via
23	the C<perl> resource are loaded and associated with it.	23	the C<perl> resource are loaded and associated with it.
24		24
25	Scripts are compiled in a 'use strict' and 'use utf8' environment, and	25	Scripts are compiled in a 'use strict' and 'use utf8' environment, and
26	thus must be encoded as UTF-8.	26	thus must be encoded as UTF-8.
27		27
28	Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where	28	Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where
29	scripts will be shared (but not enabled) for all terminals.	29	scripts will be shared (but not enabled) for all terminals.
30		30
31	=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
…		…
58		94
59	=back	95	=back
60		96
61	=item option-popup (enabled by default)	97	=item option-popup (enabled by default)
62		98
63	Binds a popup menu to Ctrl-Button3 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
66	=item digital-clock	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.
67		105
68	Displays a digital clock using the built-in overlay.	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.
69		111
70	=item mark-urls	112	The following will add an entry C<myoption> that changes
		113	C<< $self->{myoption} >>:
71		114
		115	push @{ $self->{term}{option_popup_hook} }, sub {
		116	("my option" => $myoption, sub { $self->{myoption} = $_[0] })
		117	};
		118
		119	=item selection-popup (enabled by default)
		120
		121	Binds a popup menu to Ctrl-Button3 that lets you convert the selection
		122	text into various other formats/action (such as uri unescaping, perl
		123	evaluation, web-browser starting etc.), depending on content.
		124
		125	Other extensions can extend this popup menu by pushing a code reference
		126	onto C<@{ $term->{selection_popup_hook} }>, which gets called whenever the
		127	popup is being displayed.
		128
		129	Its sole argument is the popup menu, which can be modified. The selection
		130	is in C<$_>, which can be used to decide whether to add something or not.
		131	It should either return nothing or a string and a code reference. The
		132	string will be used as button text and the code reference will be called
		133	when the button gets activated and should transform C<$_>.
		134
		135	The following will add an entry C<a to b> that transforms all C<a>s in
		136	the selection to C<b>s, but only if the selection currently contains any
		137	C<a>s:
		138
		139	push @{ $self->{term}{selection_popup_hook} }, sub {
		140	/a/ ? ("a to b" => sub { s/a/b/g }
		141	: ()
		142	};
		143
		144	=item searchable-scrollback<hotkey> (enabled by default)
		145
		146	Adds regex search functionality to the scrollback buffer, triggered
		147	by a hotkey (default: C<M-s>). While in search mode, normal terminal
		148	input/output is suspended and a regex is displayed at the bottom of the
		149	screen.
		150
		151	Inputting characters appends them to the regex and continues incremental
		152	search. C<BackSpace> removes a character from the regex, C<Up> and C<Down>
		153	search upwards/downwards in the scrollback buffer, C<End> jumps to the
		154	bottom. C<Escape> leaves search mode and returns to the point where search
		155	was started, while C<Enter> or C<Return> stay at the current position and
		156	additionally stores the first match in the current line into the primary
		157	selection if the C<Shift> modifier is active.
		158
		159	The regex defaults to "(?i)", resulting in a case-insensitive search. To
		160	get a case-sensitive search you can delete this prefix using C<BackSpace>
		161	or simply use an uppercase character which removes the "(?i)" prefix.
		162
		163	See L<perlre> for more info about perl regular expression syntax.
		164
		165	=item readline (enabled by default)
		166
		167	A support package that tries to make editing with readline easier. At
		168	the moment, it reacts to clicking shift-left mouse button by trying to
		169	move the text cursor to this position. It does so by generating as many
		170	cursor-left or cursor-right keypresses as required (this only works
		171	for programs that correctly support wide characters).
		172
		173	To avoid too many false positives, this is only done when:
		174
		175	=over 4
		176
		177	=item - the tty is in ICANON state.
		178
		179	=item - the text cursor is visible.
		180
		181	=item - the primary screen is currently being displayed.
		182
		183	=item - the mouse is on the same (multi-row-) line as the text cursor.
		184
		185	=back
		186
		187	The normal selection mechanism isn't disabled, so quick successive clicks
		188	might interfere with selection creation in harmless ways.
		189
		190	=item selection-autotransform
		191
		192	This selection allows you to do automatic transforms on a selection
		193	whenever a selection is made.
		194
		195	It works by specifying perl snippets (most useful is a single C<s///>
		196	operator) that modify C<$_> as resources:
		197
		198	URxvt.selection-autotransform.0: transform
		199	URxvt.selection-autotransform.1: transform
		200	...
		201
		202	For example, the following will transform selections of the form
		203	C<filename:number>, often seen in compiler messages, into C<vi +$filename
		204	$word>:
		205
		206	URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
		207
		208	And this example matches the same,but replaces it with vi-commands you can
		209	paste directly into your (vi :) editor:
		210
		211	URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
		212
		213	Of course, this can be modified to suit your needs and your editor :)
		214
		215	To expand the example above to typical perl error messages ("XXX at
		216	FILENAME line YYY."), you need a slightly more elaborate solution:
		217
		218	URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
		219	URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
		220
		221	The first line tells the selection code to treat the unchanging part of
		222	every error message as a selection pattern, and the second line transforms
		223	the message into vi commands to load the file.
		224
		225	=item tabbed
		226
		227	This transforms the terminal into a tabbar with additional terminals, that
		228	is, it implements what is commonly referred to as "tabbed terminal". The topmost line
		229	displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
		230	button per tab.
		231
		232	Clicking a button will activate that tab. Pressing B<Shift-Left> and
		233	B<Shift-Right> will switch to the tab left or right of the current one,
		234	while B<Shift-Down> creates a new tab.
		235
		236	The tabbar itself can be configured similarly to a normal terminal, but
		237	with a resource class of C<URxvt.tabbed>. In addition, it supports the
		238	following four resources (shown with defaults):
		239
		240	URxvt.tabbed.tabbar-fg: <colour-index, default 3>
		241	URxvt.tabbed.tabbar-bg: <colour-index, default 0>
		242	URxvt.tabbed.tab-fg: <colour-index, default 0>
		243	URxvt.tabbed.tab-bg: <colour-index, default 1>
		244
		245	See I<COLOR AND GRAPHICS> in the @@RXVT_NAME@@(1) manpage for valid
		246	indices.
		247
		248	=item matcher
		249
72	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.
73		315
74	=item block-graphics-to-ascii	316	=item block-graphics-to-ascii
75		317
76	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
77	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
78	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.
79		393
80	=item example-refresh-hooks	394	=item example-refresh-hooks
81		395
82	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
83	window. Illustrates overwriting the refresh callbacks to create your own	397	window. Illustrates overwriting the refresh callbacks to create your own
84	overlays or changes.	398	overlays or changes.
85		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
86	=back	413	=back
		414
		415	=head1 API DOCUMENTATION
87		416
88	=head2 General API Considerations	417	=head2 General API Considerations
89		418
90	All objects (such as terminals, time watchers etc.) are typical	419	All objects (such as terminals, time watchers etc.) are typical
91	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
…		…
103		432
104	=over 4	433	=over 4
105		434
106	=item $text	435	=item $text
107		436
108	Rxvt-unicodes special way of encoding text, where one "unicode" character	437	Rxvt-unicode's special way of encoding text, where one "unicode" character
109	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.
110		439
111	=item $string	440	=item $string
112		441
113	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
114	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
…		…
117	=item $octets	446	=item $octets
118		447
119	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
120	locale-specific way.	449	locale-specific way.
121		450
		451	=item $keysym
		452
		453	an integer that is a valid X11 keysym code. You can convert a string
		454	into a keysym and viceversa by using C<XStringToKeysym> and
		455	C<XKeysymToString>.
		456
		457	=back
		458
		459	=head2 Extension Objects
		460
		461	Every perl extension is a perl class. A separate perl object is created
		462	for each terminal, and each terminal has its own set of extension objects,
		463	which are passed as the first parameter to hooks. So extensions can use
		464	their C<$self> object without having to think about clashes with other
		465	extensions or other terminals, with the exception of methods and members
		466	that begin with an underscore character C<_>: these are reserved for
		467	internal use.
		468
		469	Although it isn't a C<urxvt::term> object, you can call all methods of the
		470	C<urxvt::term> class on this object.
		471
		472	It has the following methods and data members:
		473
		474	=over 4
		475
		476	=item $urxvt_term = $self->{term}
		477
		478	Returns the C<urxvt::term> object associated with this instance of the
		479	extension. This member I<must not> be changed in any way.
		480
		481	=item $self->enable ($hook_name => $cb, [$hook_name => $cb..])
		482
		483	Dynamically enable the given hooks (named without the C<on_> prefix) for
		484	this extension, replacing any previous hook. This is useful when you want
		485	to overwrite time-critical hooks only temporarily.
		486
		487	=item $self->disable ($hook_name[, $hook_name..])
		488
		489	Dynamically disable the given hooks.
		490
122	=back	491	=back
123		492
124	=head2 Hooks	493	=head2 Hooks
125		494
126	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
127	called whenever the relevant event happens.	496	called whenever the relevant event happens.
128		497
129	The first argument passed to them is an object private to each terminal	498	The first argument passed to them is an extension object as described in
130	and extension package. You can call all C<urxvt::term> methods on it, but	499	the in the C<Extension Objects> section.
131	its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
132	object that is shared between all packages is stored in the C<term>
133	member. It is, however, blessed intot he package of the extension script,
134	so for all practical purposes you can treat an extension script as a class.
135		500
136	All of them must return a boolean value. If it is true, then the event	501	B<All> of these hooks must return a boolean value. If any of the called
137	counts as being I<consumed>, and the invocation of other hooks is skipped,	502	hooks returns true, then the event counts as being I<consumed>, and the
138	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.
139		504
140	When in doubt, return a false value (preferably C<()>).	505	I<< When in doubt, return a false value (preferably C<()>). >>
141		506
142	=over 4	507	=over 4
143		508
144	=item on_init $term	509	=item on_init $term
145		510
146	Called after a new terminal object has been initialized, but before	511	Called after a new terminal object has been initialized, but before
147	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
148	call or deliver senseless data, as terminal size and other characteristics	513	call or deliver senseless data, as terminal size and other characteristics
149	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
150	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).
151		527
152	=item on_reset $term	528	=item on_reset $term
153		529
154	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
155	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
156	variables.	532	variables.
157		533
158	=item on_start $term	534	=item on_child_start $term, $pid
159		535
160	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.
161	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>.
162		542
163	=item on_sel_make $term, $eventtime	543	=item on_sel_make $term, $eventtime
164		544
165	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
166	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
…		…
173		553
174	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
175	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
176	by calling C<< $term->selection >>.	556	by calling C<< $term->selection >>.
177		557
178	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.
179		559
180	=item on_sel_extend $term	560	=item on_sel_extend $term
181		561
182	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
183	click) and is either supposed to return false (normal operation), or	563	click) and is either supposed to return false (normal operation), or
184	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
185	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.
186		568
187	See the F<selection> example extension.	569	See the F<selection> example extension.
188		570
189	=item on_view_change $term, $offset	571	=item on_view_change $term, $offset
190		572
191	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
192	scrolls. Offset C<0> means display the normal terminal, positive values	574	scrolls. Offset C<0> means display the normal terminal, positive values
193	show this many lines of scrollback.	575	show this many lines of scrollback.
194		576
195	=item on_scroll_back $term, $lines, $saved	577	=item on_scroll_back $term, $lines, $saved
196		578
…		…
200		582
201	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,	583	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
202	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total	584	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
203	number of lines that will be in the scrollback buffer.	585	number of lines that will be in the scrollback buffer.
204		586
205	=item on_tty_activity $term *NYI*
206
207	Called whenever the program(s) running in the urxvt window send output.
208
209	=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, $resp
210		598
211	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =	599	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
212	operating system command) is processed. Cursor position and other state	600	operating system command) is processed. Cursor position and other state
213	information is up-to-date when this happens. For interoperability, the	601	information is up-to-date when this happens. For interoperability, the
214	string should start with the extension name and a colon, to distinguish	602	string should start with the extension name (sans -osc) and a semicolon,
215	it from commands for other extensions, and this might be enforced in the	603	to distinguish it from commands for other extensions, and this might be
216	future.	604	enforced in the future.
		605
		606	For example, C<overlay-osc> uses this:
		607
		608	sub on_osc_seq_perl {
		609	my ($self, $osc, $resp) = @_;
		610
		611	return unless $osc =~ s/^overlay;//;
		612
		613	... process remaining $osc string
		614	}
217		615
218	Be careful not ever to trust (in a security sense) the data you receive,	616	Be careful not ever to trust (in a security sense) the data you receive,
219	as its source can not easily be controleld (e-mail content, messages from	617	as its source can not easily be controlled (e-mail content, messages from
220	other users on the same system etc.).	618	other users on the same system etc.).
		619
		620	For responses, C<$resp> contains the end-of-args separator used by the
		621	sender.
221		622
222	=item on_add_lines $term, $string	623	=item on_add_lines $term, $string
223		624
224	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
225	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
226	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
227	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
228	output.	629	output.
229		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
230	=item on_line_update $term, $row	643	=item on_line_update $term, $row
231		644
232	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
233	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
234	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,
…		…
241	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
242	you cannot just toggle rendition bits, but only set them.	655	you cannot just toggle rendition bits, but only set them.
243		656
244	=item on_refresh_begin $term	657	=item on_refresh_begin $term
245		658
246	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
247	or similar effects by modify terminal contents in refresh_begin, and	660	similar effects by modifying the terminal contents in refresh_begin, and
248	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
249	code is run after this hook, and takes precedence.	662	code is run after this hook, and takes precedence.
250		663
251	=item on_refresh_end $term	664	=item on_refresh_end $term
252		665
253	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>.
254		667
255	=item on_keyboard_command $term, $string	668	=item on_user_command $term, $string
256		669
257	Called whenever the user presses a key combination that has a	670	Called whenever a user-configured event is being activated (e.g. via
258	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>
259	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.
260		699
261	=item on_focus_in $term	700	=item on_focus_in $term
262		701
263	Called whenever the window gets the keyboard focus, before rxvt-unicode	702	Called whenever the window gets the keyboard focus, before rxvt-unicode
264	does focus in processing.	703	does focus in processing.
265		704
266	=item on_focus_out $term	705	=item on_focus_out $term
267		706
268	Called wheneever the window loses keyboard focus, before rxvt-unicode does	707	Called whenever the window loses keyboard focus, before rxvt-unicode does
269	focus out processing.	708	focus out processing.
270		709
		710	=item on_configure_notify $term, $event
		711
		712	=item on_property_notify $term, $event
		713
271	=item on_key_press $term, $event, $octets	714	=item on_key_press $term, $event, $keysym, $octets
272		715
273	=item on_key_release $term, $event	716	=item on_key_release $term, $event, $keysym
274		717
275	=item on_button_press $term, $event	718	=item on_button_press $term, $event
276		719
277	=item on_button_release $term, $event	720	=item on_button_release $term, $event
278		721
…		…
280		723
281	=item on_map_notify $term, $event	724	=item on_map_notify $term, $event
282		725
283	=item on_unmap_notify $term, $event	726	=item on_unmap_notify $term, $event
284		727
285	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
286	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.
287		730
288	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
289	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
290	and column under the mouse cursor.	733	(real, not screen-based) row and column under the mouse cursor.
291		734
292	C<on_key_press> additionally receives the string rxvt-unicode would	735	C<on_key_press> additionally receives the string rxvt-unicode would
293	output, if any, in locale-specific encoding.	736	output, if any, in locale-specific encoding.
294		737
295	subwindow.	738	subwindow.
296		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
297	=back	753	=back
298		754
		755	=cut
		756
		757	package urxvt;
		758
		759	use utf8;
		760	use strict;
		761	use Carp ();
		762	use Scalar::Util ();
		763	use List::Util ();
		764
		765	our $VERSION = 1;
		766	our $TERM;
		767	our @TERM_INIT;
		768	our @TERM_EXT;
		769	our @HOOKNAME;
		770	our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
		771	our %OPTION;
		772
		773	our $LIBDIR;
		774	our $RESNAME;
		775	our $RESCLASS;
		776	our $RXVTNAME;
		777
		778	our $NOCHAR = chr 0xffff;
		779
299	=head2 Variables in the C<urxvt> Package	780	=head2 Variables in the C<urxvt> Package
300		781
301	=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>.
302		796
303	=item $urxvt::TERM	797	=item $urxvt::TERM
304		798
305	The current terminal. This variable stores the current C<urxvt::term>	799	The current terminal. This variable stores the current C<urxvt::term>
306	object, whenever a callback/hook is executing.	800	object, whenever a callback/hook is executing.
307		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
308	=back	818	=back
309		819
310	=head2 Functions in the C<urxvt> Package	820	=head2 Functions in the C<urxvt> Package
311		821
312	=over 4	822	=over 4
313		823
314	=item $term = new urxvt [arg...]
315
316	Creates a new terminal, very similar as if you had started it with
317	C<system $binfile, arg...>. Croaks (and probably outputs an error message)
318	if the new instance couldn't be created. Returns C<undef> if the new
319	instance didn't initialise perl, and the terminal object otherwise. The
320	C<init> and C<start> hooks will be called during the call.
321
322	=item urxvt::fatal $errormessage	824	=item urxvt::fatal $errormessage
323		825
324	Fatally aborts execution with the given error message. Avoid at all	826	Fatally aborts execution with the given error message (which should
325	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
326	starts up.	828	is acceptable (and useful) is in the init hook, where it prevents the
		829	terminal from starting up.
327		830
328	=item urxvt::warn $string	831	=item urxvt::warn $string
329		832
330	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
331	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
332	that calls this function.	835	that calls this function.
333		836
334	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
335	correct place, e.g. on stderr of the connecting urxvtc client.	838	correct place, e.g. on stderr of the connecting urxvtc client.
		839
		840	Messages have a size limit of 1023 bytes currently.
		841
		842	=item @terms = urxvt::termlist
		843
		844	Returns all urxvt::term objects that exist in this process, regardless of
		845	whether they are started, being destroyed etc., so be careful. Only term
		846	objects that have perl extensions attached will be returned (because there
		847	is no urxvt::term object associated with others).
336		848
337	=item $time = urxvt::NOW	849	=item $time = urxvt::NOW
338		850
339	Returns the "current time" (as per the event loop).	851	Returns the "current time" (as per the event loop).
340		852
…		…
342		854
343	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,	855	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
344	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,	856	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
345	Button4Mask, Button5Mask, AnyModifier	857	Button4Mask, Button5Mask, AnyModifier
346		858
		859	=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
		860	ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
		861	PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
		862	Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
		863	KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
		864	ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
		865	FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
		866
		867	=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
		868	EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
		869	GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
		870	UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
		871	ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
		872	CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
		873	SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
		874
347	Various constants for use in X events.	875	Various constants for use in X calls and event processing.
348		876
349	=back	877	=back
350		878
351	=head2 RENDITION	879	=head2 RENDITION
352		880
…		…
367		895
368	=item $rend = urxvt::OVERLAY_RSTYLE	896	=item $rend = urxvt::OVERLAY_RSTYLE
369		897
370	Return the rendition mask used for overlays by default.	898	Return the rendition mask used for overlays by default.
371		899
372	=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
373		902
374	Return the bit that enabled bold, italic, blink, reverse-video and	903	Return the bit that enabled bold, italic, blink, reverse-video and
375	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
376	the bitset.	905	the bitset.
377		906
…		…
379		908
380	=item $background = urxvt::GET_BASEBG $rend	909	=item $background = urxvt::GET_BASEBG $rend
381		910
382	Return the foreground/background colour index, respectively.	911	Return the foreground/background colour index, respectively.
383		912
384	=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)	913	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
385		914
386	=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
387		918
388	Replace the foreground/background colour in the rendition mask with the	919	Replace the foreground/background colour in the rendition mask with the
389	specified one.	920	specified one.
390		921
391	=item $value = urxvt::GET_CUSTOM ($rend)	922	=item $value = urxvt::GET_CUSTOM $rend
392		923
393	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
394	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
395	zero.	926	zero.
396		927
397	=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)	928	=item $rend = urxvt::SET_CUSTOM $rend, $new_value
398		929
399	Change the custom value.	930	Change the custom value.
400		931
401	=back	932	=back
402		933
403	=cut	934	=cut
404		935
405	package urxvt;
406
407	use utf8;
408	use strict;
409	use Scalar::Util ();
410	use List::Util ();
411
412	our $TERM;
413	our @HOOKNAME;
414	our %OPTION;
415	our $LIBDIR;
416
417	BEGIN {	936	BEGIN {
418	urxvt->bootstrap;
419
420	# overwrite perl's warn	937	# overwrite perl's warn
421	*CORE::GLOBAL::warn = sub {	938	*CORE::GLOBAL::warn = sub {
422	my $msg = join "", @_;	939	my $msg = join "", @_;
423	$msg .= "\n"	940	$msg .= "\n"
424	unless $msg =~ /\n$/;	941	unless $msg =~ /\n$/;
425	urxvt::warn ($msg);	942	urxvt::warn ($msg);
426	};	943	};
427	}	944	}
428		945
429	my @hook_count;	946	no warnings 'utf8';
		947
430	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};	948	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
431		949
432	sub verbose {	950	sub verbose {
433	my ($level, $msg) = @_;	951	my ($level, $msg) = @_;
434	warn "$msg\n" if $level <= $verbosity;	952	warn "$msg\n" if $level <= $verbosity;
435	}	953	}
436		954
437	# find on_xxx subs in the package and register them
438	# as hooks
439	sub register_package($) {
440	my ($pkg) = @_;
441
442	for my $htype (0.. $#HOOKNAME) {
443	my $name = $HOOKNAME[$htype];
444
445	my $ref = $pkg->can ("on_" . lc $name)
446	or next;
447
448	$TERM->{_hook}[$htype]{$pkg} = $ref;
449	$hook_count[$htype]++
450	or set_should_invoke $htype, 1;
451	}
452	}
453
454	my $extension_pkg = "extension0000";
455	my %extension_pkg;	955	my %extension_pkg;
456		956
457	# load a single script into its own package, once only	957	# load a single script into its own package, once only
458	sub extension_package($) {	958	sub extension_package($) {
459	my ($path) = @_;	959	my ($path) = @_;
460		960
461	$extension_pkg{$path} ||= do {	961	$extension_pkg{$path} ||= do {
462	my $pkg = "urxvt::" . ($extension_pkg++);	962	$path =~ /([^\/\\]+)$/;
		963	my $pkg = $1;
		964	$pkg =~ s/[^[:word:]]/_/g;
		965	$pkg = "urxvt::ext::$pkg";
463		966
464	verbose 3, "loading extension '$path' into package '$pkg'";	967	verbose 3, "loading extension '$path' into package '$pkg'";
465		968
466	open my $fh, "<:raw", $path	969	open my $fh, "<:raw", $path
467	or die "$path: $!";	970	or die "$path: $!";
468		971
469	my $source = "package $pkg; use strict; use utf8;\n"	972	my $source =
470	. "use base urxvt::term::proxy::;\n"	973	"package $pkg; use strict; use utf8; no warnings 'utf8';\n"
471	. "#line 1 \"$path\"\n{\n"	974	. "#line 1 \"$path\"\n{\n"
472	. (do { local $/; <$fh> })	975	. (do { local $/; <$fh> })
473	. "\n};\n1";	976	. "\n};\n1";
474		977
		978	eval $source
475	eval $source or die "$path: $@";	979	or die "$path: $@";
476		980
477	$pkg	981	$pkg
478	}	982	}
479	}	983	}
480		984
…		…
484	sub invoke {	988	sub invoke {
485	local $TERM = shift;	989	local $TERM = shift;
486	my $htype = shift;	990	my $htype = shift;
487		991
488	if ($htype == 0) { # INIT	992	if ($htype == 0) { # INIT
489	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");	993	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$ENV{HOME}/.urxvt/ext", "$LIBDIR/perl");
		994
		995	my %ext_arg;
		996
490		997	{
491	my %want_ext;	998	my @init = @TERM_INIT;
		999	@TERM_INIT = ();
		1000	$_->($TERM) for @init;
		1001	my @pkg = @TERM_EXT;
		1002	@TERM_EXT = ();
		1003	$TERM->register_package ($_) for @pkg;
		1004	}
492		1005
493	for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {	1006	for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
494	if ($_ eq "default") {	1007	if ($_ eq "default") {
495	$want_ext{$_}++ for qw(selection option-popup);	1008	$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
496	} elsif (/^-(.*)$/) {	1009	} elsif (/^-(.*)$/) {
497	delete $want_ext{$1};	1010	delete $ext_arg{$1};
		1011	} elsif (/^([^<]+)<(.*)>$/) {
		1012	push @{ $ext_arg{$1} }, $2;
498	} else {	1013	} else {
499	$want_ext{$_}++;	1014	$ext_arg{$_} ||= [];
500	}	1015	}
501	}	1016	}
502		1017
503	for my $ext (keys %want_ext) {	1018	for my $ext (sort keys %ext_arg) {
504	my @files = grep -f $_, map "$_/$ext", @dirs;	1019	my @files = grep -f $_, map "$_/$ext", @dirs;
505		1020
506	if (@files) {	1021	if (@files) {
507	register_package extension_package $files[0];	1022	$TERM->register_package (extension_package $files[0], $ext_arg{$ext});
508	} else {	1023	} else {
509	warn "perl extension '$ext' not found in perl library search path\n";	1024	warn "perl extension '$ext' not found in perl library search path\n";
510	}	1025	}
511	}	1026	}
		1027
		1028	eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval");
		1029	warn $@ if $@;
512	}	1030	}
513		1031
514	$retval = undef;	1032	$retval = undef;
515		1033
516	if (my $cb = $TERM->{_hook}[$htype]) {	1034	if (my $cb = $TERM->{_hook}[$htype]) {
517	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"	1035	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
518	if $verbosity >= 10;	1036	if $verbosity >= 10;
519		1037
520	keys %$cb;	1038	for my $pkg (keys %$cb) {
		1039	my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg}, @_) };
		1040	$retval ||= $retval_;
521		1041
522	while (my ($pkg, $cb) = each %$cb) {	1042	if ($@) {
523	eval {	1043	$TERM->ungrab; # better to lose the grab than the session
524	$retval = $cb->(	1044	warn $@;
525	$TERM->{_pkg}{$pkg} ||= do {
526	my $proxy = bless { }, $pkg;
527	Scalar::Util::weaken ($proxy->{term} = $TERM);
528	$proxy
529	},
530	@_,
531	) and last;
532	};
533	warn $@ if $@;#d#
534	}
535	}
536
537	if ($htype == 1) { # DESTROY
538	# remove hooks if unused
539	if (my $hook = $TERM->{_hook}) {
540	for my $htype (0..$#$hook) {
541	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
542	or set_should_invoke $htype, 0;
543	}	1045	}
544	}	1046	}
545		1047
		1048	verbose 11, "$HOOKNAME[$htype] returning <$retval>"
		1049	if $verbosity >= 11;
		1050	}
		1051
		1052	if ($htype == 1) { # DESTROY
546	# clear package objects	1053	# clear package objects
547	%$_ = () for values %{ $TERM->{_pkg} };	1054	%$_ = () for values %{ $TERM->{_pkg} };
548		1055
549	# clear package	1056	# clear package
550	%$TERM = ();	1057	%$TERM = ();
551	}	1058	}
552		1059
553	$retval	1060	$retval
554	}	1061	}
555		1062
556	sub urxvt::term::proxy::AUTOLOAD {	1063	sub SET_COLOR($$$) {
557	$urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/	1064	SET_BGCOLOR (SET_FGCOLOR ($_[0], $_[1]), $_[2])
		1065	}
		1066
		1067	sub rend2mask {
		1068	no strict 'refs';
		1069	my ($str, $mask) = (@_, 0);
		1070	my %color = ( fg => undef, bg => undef );
		1071	my @failed;
		1072	for my $spec ( split /\s+/, $str ) {
		1073	if ( $spec =~ /^([fb]g)[_:-]?(\d+)/i ) {
		1074	$color{lc($1)} = $2;
		1075	} else {
		1076	my $neg = $spec =~ s/^[-^]//;
		1077	unless ( exists &{"RS_$spec"} ) {
		1078	push @failed, $spec;
		1079	next;
		1080	}
		1081	my $cur = &{"RS_$spec"};
		1082	if ( $neg ) {
		1083	$mask &= ~$cur;
		1084	} else {
		1085	$mask |= $cur;
		1086	}
		1087	}
		1088	}
		1089	($mask, @color{qw(fg bg)}, \@failed)
		1090	}
		1091
		1092	# urxvt::term::extension
		1093
		1094	package urxvt::term::extension;
		1095
		1096	sub enable {
		1097	my ($self, %hook) = @_;
		1098	my $pkg = $self->{_pkg};
		1099
		1100	while (my ($name, $cb) = each %hook) {
		1101	my $htype = $HOOKTYPE{uc $name};
		1102	defined $htype
		1103	or Carp::croak "unsupported hook type '$name'";
		1104
		1105	$self->modify_should_invoke_count ($htype, +1)
		1106	unless exists $self->{term}{_hook}[$htype]{$pkg};
		1107
		1108	$self->{term}{_hook}[$htype]{$pkg} = $cb;
		1109	}
		1110	}
		1111
		1112	sub disable {
		1113	my ($self, @hook) = @_;
		1114	my $pkg = $self->{_pkg};
		1115
		1116	for my $name (@hook) {
		1117	my $htype = $HOOKTYPE{uc $name};
		1118	defined $htype
		1119	or Carp::croak "unsupported hook type '$name'";
		1120
		1121	$self->modify_should_invoke_count ($htype, -1)
		1122	if delete $self->{term}{_hook}[$htype]{$pkg};
		1123	}
		1124	}
		1125
		1126	our $AUTOLOAD;
		1127
		1128	sub AUTOLOAD {
		1129	$AUTOLOAD =~ /:([^:]+)$/
558	or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";	1130	or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
559		1131
560	eval qq{	1132	eval qq{
561	sub $urxvt::term::proxy::AUTOLOAD {	1133	sub $AUTOLOAD {
562	my \$proxy = shift;	1134	my \$proxy = shift;
563	\$proxy->{term}->$1 (\@_)	1135	\$proxy->{term}->$1 (\@_)
564	}	1136	}
565	1	1137	1
566	} or die "FATAL: unable to compile method forwarder: $@";	1138	} or die "FATAL: unable to compile method forwarder: $@";
567		1139
568	goto &$urxvt::term::proxy::AUTOLOAD;	1140	goto &$AUTOLOAD;
569	}	1141	}
		1142
		1143	sub DESTROY {
		1144	# nop
		1145	}
		1146
		1147	# urxvt::destroy_hook
570		1148
571	sub urxvt::destroy_hook::DESTROY {	1149	sub urxvt::destroy_hook::DESTROY {
572	${$_[0]}->();	1150	${$_[0]}->();
573	}	1151	}
574		1152
575	sub urxvt::destroy_hook(&) {	1153	sub urxvt::destroy_hook(&) {
576	bless \shift, urxvt::destroy_hook::	1154	bless \shift, urxvt::destroy_hook::
577	}	1155	}
578		1156
		1157	package urxvt::anyevent;
		1158
		1159	=head2 The C<urxvt::anyevent> Class
		1160
		1161	The sole purpose of this class is to deliver an interface to the
		1162	C<AnyEvent> module - any module using it will work inside urxvt without
		1163	further programming. The only exception is that you cannot wait on
		1164	condition variables, but non-blocking condvar use is ok. What this means
		1165	is that you cannot use blocking APIs, but the non-blocking variant should
		1166	work.
		1167
		1168	=cut
		1169
		1170	our $VERSION = '5.23';
		1171
		1172	$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
		1173	push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
		1174
		1175	sub timer {
		1176	my ($class, %arg) = @_;
		1177
		1178	my $cb = $arg{cb};
		1179
		1180	urxvt::timer
		1181	->new
		1182	->after ($arg{after}, $arg{interval})
		1183	->cb ($arg{interval} ? $cb : sub {
		1184	$_[0]->stop; # need to cancel manually
		1185	$cb->();
		1186	})
		1187	}
		1188
		1189	sub io {
		1190	my ($class, %arg) = @_;
		1191
		1192	my $cb = $arg{cb};
		1193	my $fd = fileno $arg{fh};
		1194	defined $fd or $fd = $arg{fh};
		1195
		1196	bless [$arg{fh}, urxvt::iow
		1197	->new
		1198	->fd ($fd)
		1199	->events (($arg{poll} =~ /r/ ? 1 : 0)
		1200	| ($arg{poll} =~ /w/ ? 2 : 0))
		1201	->start
		1202	->cb ($cb)
		1203	], urxvt::anyevent::
		1204	}
		1205
		1206	sub idle {
		1207	my ($class, %arg) = @_;
		1208
		1209	my $cb = $arg{cb};
		1210
		1211	urxvt::iw
		1212	->new
		1213	->start
		1214	->cb ($cb)
		1215	}
		1216
		1217	sub child {
		1218	my ($class, %arg) = @_;
		1219
		1220	my $cb = $arg{cb};
		1221
		1222	urxvt::pw
		1223	->new
		1224	->start ($arg{pid})
		1225	->cb (sub {
		1226	$_[0]->stop; # need to cancel manually
		1227	$cb->($_[0]->rpid, $_[0]->rstatus);
		1228	})
		1229	}
		1230
		1231	sub DESTROY {
		1232	$_[0][1]->stop;
		1233	}
		1234
		1235	# only needed for AnyEvent < 6 compatibility
		1236	sub one_event {
		1237	Carp::croak "AnyEvent->one_event blocking wait unsupported in urxvt, use a non-blocking API";
		1238	}
		1239
		1240	package urxvt::term;
		1241
579	=head2 The C<urxvt::term> Class	1242	=head2 The C<urxvt::term> Class
580		1243
581	=over 4	1244	=over 4
582		1245
		1246	=cut
		1247
		1248	# find on_xxx subs in the package and register them
		1249	# as hooks
		1250	sub register_package {
		1251	my ($self, $pkg, $argv) = @_;
		1252
		1253	no strict 'refs';
		1254
		1255	urxvt::verbose 6, "register package $pkg to $self";
		1256
		1257	@{"$pkg\::ISA"} = urxvt::term::extension::;
		1258
		1259	my $proxy = bless {
		1260	_pkg => $pkg,
		1261	argv => $argv,
		1262	}, $pkg;
		1263	Scalar::Util::weaken ($proxy->{term} = $self);
		1264
		1265	$self->{_pkg}{$pkg} = $proxy;
		1266
		1267	for my $name (@HOOKNAME) {
		1268	if (my $ref = $pkg->can ("on_" . lc $name)) {
		1269	$proxy->enable ($name => $ref);
		1270	}
		1271	}
		1272	}
		1273
		1274	=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
		1275
		1276	Creates a new terminal, very similar as if you had started it with system
		1277	C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
		1278	hash which defines the environment of the new terminal.
		1279
		1280	Croaks (and probably outputs an error message) if the new instance
		1281	couldn't be created. Returns C<undef> if the new instance didn't
		1282	initialise perl, and the terminal object otherwise. The C<init> and
		1283	C<start> hooks will be called before this call returns, and are free to
		1284	refer to global data (which is race free).
		1285
		1286	=cut
		1287
		1288	sub new {
		1289	my ($class, $env, @args) = @_;
		1290
		1291	$env or Carp::croak "environment hash missing in call to urxvt::term->new";
		1292	@args or Carp::croak "name argument missing in call to urxvt::term->new";
		1293
		1294	_new ([ map "$_=$env->{$_}", keys %$env ], \@args);
		1295	}
		1296
583	=item $term->destroy	1297	=item $term->destroy
584		1298
585	Destroy the terminal object (close the window, free resources etc.).	1299	Destroy the terminal object (close the window, free resources
		1300	etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
		1301	watchers (timers, io watchers) are still active.
		1302
		1303	=item $term->exec_async ($cmd[, @args])
		1304
		1305	Works like the combination of the C<fork>/C<exec> builtins, which executes
		1306	("starts") programs in the background. This function takes care of setting
		1307	the user environment before exec'ing the command (e.g. C<PATH>) and should
		1308	be preferred over explicit calls to C<exec> or C<system>.
		1309
		1310	Returns the pid of the subprocess or C<undef> on error.
		1311
		1312	=cut
		1313
		1314	sub exec_async {
		1315	my $self = shift;
		1316
		1317	my $pid = fork;
		1318
		1319	return $pid
		1320	if !defined $pid or $pid;
		1321
		1322	%ENV = %{ $self->env };
		1323
		1324	exec @_;
		1325	urxvt::_exit 255;
		1326	}
586		1327
587	=item $isset = $term->option ($optval[, $set])	1328	=item $isset = $term->option ($optval[, $set])
588		1329
589	Returns true if the option specified by C<$optval> is enabled, and	1330	Returns true if the option specified by C<$optval> is enabled, and
590	optionally change it. All option values are stored by name in the hash	1331	optionally change it. All option values are stored by name in the hash
591	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.	1332	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
592		1333
593	Here is a a likely non-exhaustive list of option names, please see the	1334	Here is a likely non-exhaustive list of option names, please see the
594	source file F</src/optinc.h> to see the actual list:	1335	source file F</src/optinc.h> to see the actual list:
595		1336
596	borderLess console cursorBlink cursorUnderline hold iconic insecure	1337	borderLess buffered console cursorBlink cursorUnderline hold iconic
597	intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage	1338	insecure intensityStyles iso14755 iso14755_52 jumpScroll loginShell
		1339	mapAlert meta8 mouseWheelScrollPage override_redirect pastableTabs
598	pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating	1340	pointerBlank reverseVideo scrollBar scrollBar_floating scrollBar_right
599	scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer	1341	scrollTtyKeypress scrollTtyOutput scrollWithBuffer secondaryScreen
600	secondaryScreen secondaryScroll skipBuiltinGlyphs transparent	1342	secondaryScroll skipBuiltinGlyphs skipScroll transparent tripleclickwords
601	tripleclickwords utmpInhibit visualBell	1343	urgentOnBell utmpInhibit visualBell
602		1344
603	=item $value = $term->resource ($name[, $newval])	1345	=item $value = $term->resource ($name[, $newval])
604		1346
605	Returns the current resource value associated with a given name and	1347	Returns the current resource value associated with a given name and
606	optionally sets a new value. Setting values is most useful in the C<init>	1348	optionally sets a new value. Setting values is most useful in the C<init>
…		…
615	likely change).	1357	likely change).
616		1358
617	Please note that resource strings will currently only be freed when the	1359	Please note that resource strings will currently only be freed when the
618	terminal is destroyed, so changing options frequently will eat memory.	1360	terminal is destroyed, so changing options frequently will eat memory.
619		1361
620	Here is a a likely non-exhaustive list of resource names, not all of which	1362	Here is a likely non-exhaustive list of resource names, not all of which
621	are supported in every build, please see the source file F</src/rsinc.h>	1363	are supported in every build, please see the source file F</src/rsinc.h>
622	to see the actual list:	1364	to see the actual list:
623		1365
624	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont	1366	answerbackstring backgroundPixmap backspace_key blendtype blurradius
625	borderLess color cursorBlink cursorUnderline cutchars delete_key	1367	boldFont boldItalicFont borderLess buffered chdir color cursorBlink
626	display_name embed ext_bwidth fade font geometry hold iconName	1368	cursorUnderline cutchars delete_key depth display_name embed ext_bwidth
627	imFont imLocale inputMethod insecure int_bwidth intensityStyles	1369	fade font geometry hold iconName iconfile imFont imLocale inputMethod
		1370	insecure int_bwidth intensityStyles iso14755 iso14755_52 italicFont
628	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier	1371	jumpScroll letterSpace lineSpace loginShell mapAlert meta8 modifier
629	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2	1372	mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
630	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd	1373	perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
631	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating	1374	preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
632	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput	1375	scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
633	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle	1376	scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
634	shade term_name title transparent transparent_all tripleclickwords	1377	secondaryScreen secondaryScroll shade skipBuiltinGlyphs skipScroll
		1378	term_name title transient_for transparent tripleclickwords urgentOnBell
635	utmpInhibit visualBell	1379	utmpInhibit visualBell
636		1380
637	=cut	1381	=cut
638		1382
639	sub urxvt::term::resource($$;$) {	1383	sub resource($$;$) {
640	my ($self, $name) = (shift, shift);	1384	my ($self, $name) = (shift, shift);
641	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);	1385	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
642	&urxvt::term::_resource	1386	goto &urxvt::term::_resource
643	}	1387	}
		1388
		1389	=item $value = $term->x_resource ($pattern)
		1390
		1391	Returns the X-Resource for the given pattern, excluding the program or
		1392	class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
		1393	same value as used by this instance of rxvt-unicode. Returns C<undef> if no
		1394	resource with that pattern exists.
		1395
		1396	This method should only be called during the C<on_start> hook, as there is
		1397	only one resource database per display, and later invocations might return
		1398	the wrong resources.
		1399
		1400	=item $success = $term->parse_keysym ($key, $octets)
		1401
		1402	Adds a key binding exactly as specified via a resource. See the
		1403	C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
		1404
		1405	=item $term->register_command ($keysym, $modifiermask, $string)
		1406
		1407	Adds a key binding. This is a lower level api compared to
		1408	C<parse_keysym>, as it expects a parsed key description, and can be
		1409	used only inside either the C<on_init> hook, to add a binding, or the
		1410	C<on_register_command> hook, to modify a parsed binding.
644		1411
645	=item $rend = $term->rstyle ([$new_rstyle])	1412	=item $rend = $term->rstyle ([$new_rstyle])
646		1413
647	Return and optionally change the current rendition. Text that is output by	1414	Return and optionally change the current rendition. Text that is output by
648	the terminal application will use this style.	1415	the terminal application will use this style.
…		…
656		1423
657	=item ($row, $col) = $term->selection_beg ([$row, $col])	1424	=item ($row, $col) = $term->selection_beg ([$row, $col])
658		1425
659	=item ($row, $col) = $term->selection_end ([$row, $col])	1426	=item ($row, $col) = $term->selection_end ([$row, $col])
660		1427
661	Return the current values of the selection mark, begin or end positions,	1428	Return the current values of the selection mark, begin or end positions.
662	and optionally set them to new values.
663		1429
		1430	When arguments are given, then the selection coordinates are set to
		1431	C<$row> and C<$col>, and the selection screen is set to the current
		1432	screen.
		1433
		1434	=item $screen = $term->selection_screen ([$screen])
		1435
		1436	Returns the current selection screen, and then optionally sets it.
		1437
		1438	=item $term->selection_make ($eventtime[, $rectangular])
		1439
		1440	Tries to make a selection as set by C<selection_beg> and
		1441	C<selection_end>. If C<$rectangular> is true (default: false), a
		1442	rectangular selection will be made. This is the preferred function to make
		1443	a selection.
		1444
664	=item $success = $term->selection_grab ($eventtime)	1445	=item $success = $term->selection_grab ($eventtime[, $clipboard])
665		1446
666	Try to request the primary selection from the server (for example, as set	1447	Try to acquire ownership of the primary (clipboard if C<$clipboard> is
667	by the next method).	1448	true) selection from the server. The corresponding text can be set
		1449	with the next method. No visual feedback will be given. This function
		1450	is mostly useful from within C<on_sel_grab> hooks.
668		1451
669	=item $oldtext = $term->selection ([$newtext])	1452	=item $oldtext = $term->selection ([$newtext, $clipboard])
670		1453
671	Return the current selection text and optionally replace it by C<$newtext>.	1454	Return the current selection (clipboard if C<$clipboard> is true) text
		1455	and optionally replace it by C<$newtext>.
672		1456
		1457	=item $term->selection_clear ([$clipboard])
		1458
		1459	Revoke ownership of the primary (clipboard if C<$clipboard> is true) selection.
		1460
673	#=item $term->overlay ($x, $y, $text)	1461	=item $term->overlay_simple ($x, $y, $text)
674	#	1462
675	#Create a simple multi-line overlay box. See the next method for details.	1463	Create a simple multi-line overlay box. See the next method for details.
676	#	1464
677	#=cut	1465	=cut
678	#	1466
679	#sub urxvt::term::scr_overlay {	1467	sub overlay_simple {
680	# my ($self, $x, $y, $text) = @_;	1468	my ($self, $x, $y, $text) = @_;
681	#	1469
682	# my @lines = split /\n/, $text;	1470	my @lines = split /\n/, $text;
683	#	1471
684	# my $w = 0;	1472	my $w = List::Util::max map $self->strwidth ($_), @lines;
685	# for (map $self->strwidth ($_), @lines) {	1473
686	# $w = $_ if $w < $_;
687	# }
688	#
689	# $self->scr_overlay_new ($x, $y, $w, scalar @lines);	1474	my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
690	# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;	1475	$overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
691	#}	1476
		1477	$overlay
		1478	}
692		1479
693	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])	1480	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
694		1481
695	Create a new (empty) overlay at the given position with the given	1482	Create a new (empty) overlay at the given position with the given
696	width/height. C<$rstyle> defines the initial rendition style	1483	width/height. C<$rstyle> defines the initial rendition style
…		…
707		1494
708	The methods currently supported on C<urxvt::overlay> objects are:	1495	The methods currently supported on C<urxvt::overlay> objects are:
709		1496
710	=over 4	1497	=over 4
711		1498
712	=item $overlay->set ($x, $y, $text, $rend)	1499	=item $overlay->set ($x, $y, $text[, $rend])
713		1500
714	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts	1501	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts
715	text in rxvt-unicode's special encoding and an array of rendition values	1502	text in rxvt-unicode's special encoding and an array of rendition values
716	at a specific position inside the overlay.	1503	at a specific position inside the overlay.
717		1504
		1505	If C<$rend> is missing, then the rendition will not be changed.
		1506
718	=item $overlay->hide	1507	=item $overlay->hide
719		1508
720	If visible, hide the overlay, but do not destroy it.	1509	If visible, hide the overlay, but do not destroy it.
721		1510
722	=item $overlay->show	1511	=item $overlay->show
…		…
731	C<$event> I<must> be the event causing the menu to pop up (a button event,	1520	C<$event> I<must> be the event causing the menu to pop up (a button event,
732	currently).	1521	currently).
733		1522
734	=cut	1523	=cut
735		1524
736	sub urxvt::term::popup {	1525	sub popup {
737	my ($self, $event) = @_;	1526	my ($self, $event) = @_;
738		1527
739	$self->grab ($event->{time}, 1)	1528	$self->grab ($event->{time}, 1)
740	or return;	1529	or return;
741		1530
…		…
763		1552
764	=item $string = $term->locale_decode ($octets)	1553	=item $string = $term->locale_decode ($octets)
765		1554
766	Convert the given locale-encoded octets into a perl string.	1555	Convert the given locale-encoded octets into a perl string.
767		1556
		1557	=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
		1558
		1559	XORs the rendition values in the given span with the provided value
		1560	(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
		1561	refresh hooks to provide effects similar to the selection.
		1562
		1563	=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
		1564
		1565	Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
		1566	whitespace will additionally be xored with the C<$rstyle2>, which defaults
		1567	to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
		1568	it instead. Both styles I<MUST NOT> contain font styles.
		1569
		1570	=item $term->scr_bell
		1571
		1572	Ring the bell!
		1573
768	=item $term->scr_add_lines ($string)	1574	=item $term->scr_add_lines ($string)
769		1575
770	Write the given text string to the screen, as if output by the application	1576	Write the given text string to the screen, as if output by the application
771	running inside the terminal. It may not contain command sequences (escape	1577	running inside the terminal. It may not contain command sequences (escape
772	codes), but is free to use line feeds, carriage returns and tabs. The	1578	codes), but is free to use line feeds, carriage returns and tabs. The
…		…
774		1580
775	Normally its not a good idea to use this function, as programs might be	1581	Normally its not a good idea to use this function, as programs might be
776	confused by changes in cursor position or scrolling. Its useful inside a	1582	confused by changes in cursor position or scrolling. Its useful inside a
777	C<on_add_lines> hook, though.	1583	C<on_add_lines> hook, though.
778		1584
		1585	=item $term->scr_change_screen ($screen)
		1586
		1587	Switch to given screen - 0 primary, 1 secondary.
		1588
779	=item $term->cmd_parse ($octets)	1589	=item $term->cmd_parse ($octets)
780		1590
781	Similar to C<scr_add_lines>, but the argument must be in the	1591	Similar to C<scr_add_lines>, but the argument must be in the
782	locale-specific encoding of the terminal and can contain command sequences	1592	locale-specific encoding of the terminal and can contain command sequences
783	(escape codes) that will be interpreted.	1593	(escape codes) that will be interpreted.
784		1594
785	=item $term->tt_write ($octets)	1595	=item $term->tt_write ($octets)
786		1596
787	Write the octets given in C<$data> to the tty (i.e. as program input). To	1597	Write the octets given in C<$octets> to the tty (i.e. as program input). To
788	pass characters instead of octets, you should convert your strings first	1598	pass characters instead of octets, you should convert your strings first
789	to the locale-specific encoding using C<< $term->locale_encode >>.	1599	to the locale-specific encoding using C<< $term->locale_encode >>.
790		1600
		1601	=item $term->tt_paste ($octets)
		1602
		1603	Write the octets given in C<$octets> to the tty as a paste, converting NL to
		1604	CR and bracketing the data with control sequences if bracketed paste mode
		1605	is set.
		1606
		1607	=item $old_events = $term->pty_ev_events ([$new_events])
		1608
		1609	Replaces the event mask of the pty watcher by the given event mask. Can
		1610	be used to suppress input and output handling to the pty/tty. See the
		1611	description of C<< urxvt::timer->events >>. Make sure to always restore
		1612	the previous value.
		1613
		1614	=item $fd = $term->pty_fd
		1615
		1616	Returns the master file descriptor for the pty in use, or C<-1> if no pty
		1617	is used.
		1618
791	=item $windowid = $term->parent	1619	=item $windowid = $term->parent
792		1620
793	Return the window id of the toplevel window.	1621	Return the window id of the toplevel window.
794		1622
795	=item $windowid = $term->vt	1623	=item $windowid = $term->vt
796		1624
797	Return the window id of the terminal window.	1625	Return the window id of the terminal window.
798		1626
		1627	=item $term->vt_emask_add ($x_event_mask)
		1628
		1629	Adds the specified events to the vt event mask. Useful e.g. when you want
		1630	to receive pointer events all the times:
		1631
		1632	$term->vt_emask_add (urxvt::PointerMotionMask);
		1633
		1634	=item $term->set_urgency ($set)
		1635
		1636	Enable/disable the urgency hint on the toplevel window.
		1637
		1638	=item $term->focus_in
		1639
		1640	=item $term->focus_out
		1641
		1642	=item $term->key_press ($state, $keycode[, $time])
		1643
		1644	=item $term->key_release ($state, $keycode[, $time])
		1645
		1646	Deliver various fake events to to terminal.
		1647
799	=item $window_width = $term->width	1648	=item $window_width = $term->width
800		1649
801	=item $window_height = $term->height	1650	=item $window_height = $term->height
802		1651
803	=item $font_width = $term->fwidth	1652	=item $font_width = $term->fwidth
…		…
816		1665
817	=item $max_scrollback = $term->saveLines	1666	=item $max_scrollback = $term->saveLines
818		1667
819	=item $nrow_plus_saveLines = $term->total_rows	1668	=item $nrow_plus_saveLines = $term->total_rows
820		1669
821	=item $lines_in_scrollback = $term->nsaved	1670	=item $topmost_scrollback_row = $term->top_row
822		1671
823	Return various integers describing terminal characteristics.	1672	Return various integers describing terminal characteristics.
		1673
		1674	=item $x_display = $term->display_id
		1675
		1676	Return the DISPLAY used by rxvt-unicode.
		1677
		1678	=item $lc_ctype = $term->locale
		1679
		1680	Returns the LC_CTYPE category string used by this rxvt-unicode.
		1681
		1682	=item $env = $term->env
		1683
		1684	Returns a copy of the environment in effect for the terminal as a hashref
		1685	similar to C<\%ENV>.
		1686
		1687	=item @envv = $term->envv
		1688
		1689	Returns the environment as array of strings of the form C<VAR=VALUE>.
		1690
		1691	=item @argv = $term->argv
		1692
		1693	Return the argument vector as this terminal, similar to @ARGV, but
		1694	includes the program name as first element.
		1695
		1696	=cut
		1697
		1698	sub env {
		1699	+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), $_[0]->envv }
		1700	}
824		1701
825	=item $modifiermask = $term->ModLevel3Mask	1702	=item $modifiermask = $term->ModLevel3Mask
826		1703
827	=item $modifiermask = $term->ModMetaMask	1704	=item $modifiermask = $term->ModMetaMask
828		1705
829	=item $modifiermask = $term->ModNumLockMask	1706	=item $modifiermask = $term->ModNumLockMask
830		1707
831	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often	1708	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
832	AltGr), the meta key (often Alt) and the num lock key, if applicable.	1709	AltGr), the meta key (often Alt) and the num lock key, if applicable.
833		1710
		1711	=item $screen = $term->current_screen
		1712
		1713	Returns the currently displayed screen (0 primary, 1 secondary).
		1714
		1715	=item $cursor_is_hidden = $term->hidden_cursor
		1716
		1717	Returns whether the cursor is currently hidden or not.
		1718
834	=item $view_start = $term->view_start ([$newvalue])	1719	=item $view_start = $term->view_start ([$newvalue])
835		1720
836	Returns the negative row number of the topmost line. Minimum value is	1721	Returns the row number of the topmost displayed line. Maximum value is
837	C<0>, which displays the normal terminal contents. Larger values scroll	1722	C<0>, which displays the normal terminal contents. Lower values scroll
838	this many lines into the scrollback buffer.	1723	this many lines into the scrollback buffer.
839		1724
840	=item $term->want_refresh	1725	=item $term->want_refresh
841		1726
842	Requests a screen refresh. At the next opportunity, rxvt-unicode will	1727	Requests a screen refresh. At the next opportunity, rxvt-unicode will
…		…
845		1730
846	Used after changing terminal contents to display them.	1731	Used after changing terminal contents to display them.
847		1732
848	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])	1733	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
849		1734
850	Returns the text of the entire row with number C<$row_number>. Row C<0>	1735	Returns the text of the entire row with number C<$row_number>. Row C<< $term->top_row >>
851	is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost	1736	is the topmost terminal line, row C<< $term->nrow-1 >> is the bottommost
852	terminal line. The scrollback buffer starts at line C<-1> and extends to
853	line C<< -$term->nsaved >>. Nothing will be returned if a nonexistent line	1737	terminal line. Nothing will be returned if a nonexistent line
854	is requested.	1738	is requested.
855		1739
856	If C<$new_text> is specified, it will replace characters in the current	1740	If C<$new_text> is specified, it will replace characters in the current
857	line, starting at column C<$start_col> (default C<0>), which is useful	1741	line, starting at column C<$start_col> (default C<0>), which is useful
858	to replace only parts of a line. The font index in the rendition will	1742	to replace only parts of a line. The font index in the rendition will
859	automatically be updated.	1743	automatically be updated.
860		1744
861	C<$text> is in a special encoding: tabs and wide characters that use more	1745	C<$text> is in a special encoding: tabs and wide characters that use more
862	than one cell when displayed are padded with urxvt::NOCHAR characters	1746	than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
863	(C<chr 65535>). Characters with combining characters and other characters	1747	characters. Characters with combining characters and other characters that
864	that do not fit into the normal tetx encoding will be replaced with	1748	do not fit into the normal text encoding will be replaced with characters
865	characters in the private use area.	1749	in the private use area.
866		1750
867	You have to obey this encoding when changing text. The advantage is	1751	You have to obey this encoding when changing text. The advantage is
868	that C<substr> and similar functions work on screen cells and not on	1752	that C<substr> and similar functions work on screen cells and not on
869	characters.	1753	characters.
870		1754
…		…
921	Return the row number of the first/last row of the line, respectively.	1805	Return the row number of the first/last row of the line, respectively.
922		1806
923	=item $offset = $line->offset_of ($row, $col)	1807	=item $offset = $line->offset_of ($row, $col)
924		1808
925	Returns the character offset of the given row|col pair within the logical	1809	Returns the character offset of the given row|col pair within the logical
926	line.	1810	line. Works for rows outside the line, too, and returns corresponding
		1811	offsets outside the string.
927		1812
928	=item ($row, $col) = $line->coord_of ($offset)	1813	=item ($row, $col) = $line->coord_of ($offset)
929		1814
930	Translates a string offset into terminal coordinates again.	1815	Translates a string offset into terminal coordinates again.
931		1816
932	=back	1817	=back
933		1818
934	=cut	1819	=cut
935		1820
936	sub urxvt::term::line {	1821	sub line {
937	my ($self, $row) = @_;	1822	my ($self, $row) = @_;
938		1823
939	my $maxrow = $self->nrow - 1;	1824	my $maxrow = $self->nrow - 1;
940		1825
941	my ($beg, $end) = ($row, $row);	1826	my ($beg, $end) = ($row, $row);
…		…
1005	$offset / $self->{ncol} + $self->{beg},	1890	$offset / $self->{ncol} + $self->{beg},
1006	$offset % $self->{ncol}	1891	$offset % $self->{ncol}
1007	)	1892	)
1008	}	1893	}
1009		1894
1010	=item ($row, $col) = $line->coord_of ($offset)
1011	=item $text = $term->special_encode $string	1895	=item $text = $term->special_encode $string
1012		1896
1013	Converts a perl string into the special encoding used by rxvt-unicode,	1897	Converts a perl string into the special encoding used by rxvt-unicode,
1014	where one character corresponds to one screen cell. See	1898	where one character corresponds to one screen cell. See
1015	C<< $term->ROW_t >> for details.	1899	C<< $term->ROW_t >> for details.
1016		1900
1017	=item $string = $term->special_decode $text	1901	=item $string = $term->special_decode $text
1018		1902
1019	Converts rxvt-unicodes text reprsentation into a perl string. See	1903	Converts rxvt-unicodes text representation into a perl string. See
1020	C<< $term->ROW_t >> for details.	1904	C<< $term->ROW_t >> for details.
1021		1905
		1906	=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
		1907
		1908	=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
		1909
		1910	Register/unregister a synchronous button grab. See the XGrabButton
		1911	manpage.
		1912
		1913	=item $success = $term->grab ($eventtime[, $sync])
		1914
		1915	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
		1916	synchronous (C<$sync> is true). Also remembers the grab timestamp.
		1917
		1918	=item $term->allow_events_async
		1919
		1920	Calls XAllowEvents with AsyncBoth for the most recent grab.
		1921
		1922	=item $term->allow_events_sync
		1923
		1924	Calls XAllowEvents with SyncBoth for the most recent grab.
		1925
		1926	=item $term->allow_events_replay
		1927
		1928	Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
		1929	recent grab.
		1930
		1931	=item $term->ungrab
		1932
		1933	Calls XUngrabPointer and XUngrabKeyboard for the most recent grab. Is called automatically on
		1934	evaluation errors, as it is better to lose the grab in the error case as
		1935	the session.
		1936
		1937	=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
		1938
		1939	=item $atom_name = $term->XGetAtomName ($atom)
		1940
		1941	=item @atoms = $term->XListProperties ($window)
		1942
		1943	=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
		1944
		1945	=item $term->XChangeProperty ($window, $property, $type, $format, $octets)
		1946
		1947	=item $term->XDeleteProperty ($window, $property)
		1948
		1949	=item $window = $term->DefaultRootWindow
		1950
		1951	=item $term->XReparentWindow ($window, $parent, [$x, $y])
		1952
		1953	=item $term->XMapWindow ($window)
		1954
		1955	=item $term->XUnmapWindow ($window)
		1956
		1957	=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
		1958
		1959	=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
		1960
		1961	=item $term->XChangeInput ($window, $add_events[, $del_events])
		1962
		1963	=item $keysym = $term->XStringToKeysym ($string)
		1964
		1965	=item $string = $term->XKeysymToString ($keysym)
		1966
		1967	Various X or X-related functions. The C<$term> object only serves as
		1968	the source of the display, otherwise those functions map more-or-less
		1969	directly onto the X functions of the same name.
		1970
1022	=back	1971	=back
1023		1972
		1973	=cut
		1974
		1975	package urxvt::popup;
		1976
1024	=head2 The C<urxvt::popup> Class	1977	=head2 The C<urxvt::popup> Class
1025		1978
1026	=over 4	1979	=over 4
1027		1980
1028	=cut	1981	=cut
1029
1030	package urxvt::popup;
1031		1982
1032	sub add_item {	1983	sub add_item {
1033	my ($self, $item) = @_;	1984	my ($self, $item) = @_;
1034		1985
1035	$item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal};	1986	$item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal};
…		…
1039	$item->{render} ||= sub { $_[0]{text} };	1990	$item->{render} ||= sub { $_[0]{text} };
1040		1991
1041	push @{ $self->{item} }, $item;	1992	push @{ $self->{item} }, $item;
1042	}	1993	}
1043		1994
1044	sub add_separator {	1995	=item $popup->add_title ($title)
1045	my ($self, $sep) = @_;
1046		1996
1047	$sep ||= "═";	1997	Adds a non-clickable title to the popup.
1048		1998
1049	$self->add_item ({	1999	=cut
1050	rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
1051	text => "",
1052	render => sub { $sep x $urxvt::TERM->ncol },
1053	activate => sub { },
1054	});
1055	}
1056		2000
1057	sub add_title {	2001	sub add_title {
1058	my ($self, $title) = @_;	2002	my ($self, $title) = @_;
1059		2003
1060	$self->add_item ({	2004	$self->add_item ({
…		…
1062	text => $title,	2006	text => $title,
1063	activate => sub { },	2007	activate => sub { },
1064	});	2008	});
1065	}	2009	}
1066		2010
		2011	=item $popup->add_separator ([$sepchr])
		2012
		2013	Creates a separator, optionally using the character given as C<$sepchr>.
		2014
		2015	=cut
		2016
		2017	sub add_separator {
		2018	my ($self, $sep) = @_;
		2019
		2020	$sep ||= "=";
		2021
		2022	$self->add_item ({
		2023	rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
		2024	text => "",
		2025	render => sub { $sep x $self->{term}->ncol },
		2026	activate => sub { },
		2027	});
		2028	}
		2029
		2030	=item $popup->add_button ($text, $cb)
		2031
		2032	Adds a clickable button to the popup. C<$cb> is called whenever it is
		2033	selected.
		2034
		2035	=cut
		2036
1067	sub add_button {	2037	sub add_button {
1068	my ($self, $text, $cb) = @_;	2038	my ($self, $text, $cb) = @_;
1069		2039
1070	$self->add_item ({ type => "button", text => "[ $text ]", activate => $cb});	2040	$self->add_item ({ type => "button", text => $text, activate => $cb});
1071	}	2041	}
		2042
		2043	=item $popup->add_toggle ($text, $initial_value, $cb)
		2044
		2045	Adds a toggle/checkbox item to the popup. The callback gets called
		2046	whenever it gets toggled, with a boolean indicating its new value as its
		2047	first argument.
		2048
		2049	=cut
1072		2050
1073	sub add_toggle {	2051	sub add_toggle {
1074	my ($self, $text, $cb, $value) = @_;	2052	my ($self, $text, $value, $cb) = @_;
1075		2053
1076	my $item; $item = {	2054	my $item; $item = {
1077	type => "button",	2055	type => "button",
1078	text => " $text",	2056	text => " $text",
1079	value => $value,	2057	value => $value,
1080	render => sub { ($item->{value} ? "* " : " ") . $text },	2058	render => sub { ($_[0]{value} ? "* " : " ") . $text },
1081	activate => sub { $cb->($item->{value} = !$item->{value}); },	2059	activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
1082	};	2060	};
1083		2061
1084	$self->add_item ($item);	2062	$self->add_item ($item);
1085	}	2063	}
		2064
		2065	=item $popup->show
		2066
		2067	Displays the popup (which is initially hidden).
		2068
		2069	=cut
1086		2070
1087	sub show {	2071	sub show {
1088	my ($self) = @_;	2072	my ($self) = @_;
1089		2073
1090	local $urxvt::popup::self = $self;	2074	local $urxvt::popup::self = $self;
1091		2075
1092	urxvt->new ("--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0,	2076	my $env = $self->{term}->env;
		2077	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
		2078	delete $env->{LC_ALL};
		2079	$env->{LC_CTYPE} = $self->{term}->locale;
		2080
		2081	my $term = urxvt::term->new (
		2082	$env, "popup",
		2083	"--perl-lib" => "", "--perl-ext-common" => "",
		2084	"-pty-fd" => -1, "-sl" => 0,
		2085	"-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1093	"--transient-for" => $self->{term}->parent,	2086	"--transient-for" => $self->{term}->parent,
		2087	"-display" => $self->{term}->display_id,
1094	"-pe" => "urxvt-popup")	2088	"-pe" => "urxvt-popup",
1095	or die "unable to create popup window\n";	2089	) or die "unable to create popup window\n";
		2090
		2091	unless (delete $term->{urxvt_popup_init_done}) {
		2092	$term->ungrab;
		2093	$term->destroy;
		2094	die "unable to initialise popup window\n";
		2095	}
1096	}	2096	}
1097		2097
1098	sub DESTROY {	2098	sub DESTROY {
1099	my ($self) = @_;	2099	my ($self) = @_;
1100		2100
		2101	delete $self->{term}{_destroy}{$self};
1101	$self->{term}->ungrab;	2102	$self->{term}->ungrab;
1102	}	2103	}
		2104
		2105	=back
		2106
		2107	=cut
		2108
		2109	package urxvt::watcher;
1103		2110
1104	=head2 The C<urxvt::timer> Class	2111	=head2 The C<urxvt::timer> Class
1105		2112
1106	This class implements timer watchers/events. Time is represented as a	2113	This class implements timer watchers/events. Time is represented as a
1107	fractional number of seconds since the epoch. Example:	2114	fractional number of seconds since the epoch. Example:
…		…
1111	->new	2118	->new
1112	->interval (1)	2119	->interval (1)
1113	->cb (sub {	2120	->cb (sub {
1114	$term->{overlay}->set (0, 0,	2121	$term->{overlay}->set (0, 0,
1115	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);	2122	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
1116	});	2123	});
1117		2124
1118	=over 4	2125	=over 4
1119		2126
1120	=item $timer = new urxvt::timer	2127	=item $timer = new urxvt::timer
1121		2128
…		…
1124		2131
1125	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })	2132	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })
1126		2133
1127	Set the callback to be called when the timer triggers.	2134	Set the callback to be called when the timer triggers.
1128		2135
1129	=item $tstamp = $timer->at
1130
1131	Return the time this watcher will fire next.
1132
1133	=item $timer = $timer->set ($tstamp)	2136	=item $timer = $timer->set ($tstamp[, $interval])
1134		2137
1135	Set the time the event is generated to $tstamp.	2138	Set the time the event is generated to $tstamp (and optionally specifies a
		2139	new $interval).
1136		2140
1137	=item $timer = $timer->interval ($interval)	2141	=item $timer = $timer->interval ($interval)
1138		2142
1139	Normally (and when C<$interval> is C<0>), the timer will automatically	2143	By default (and when C<$interval> is C<0>), the timer will automatically
1140	stop after it has fired once. If C<$interval> is non-zero, then the timer	2144	stop after it has fired once. If C<$interval> is non-zero, then the timer
1141	is automatically rescheduled at the given intervals.	2145	is automatically rescheduled at the given intervals.
1142		2146
1143	=item $timer = $timer->start	2147	=item $timer = $timer->start
1144		2148
1145	Start the timer.	2149	Start the timer.
1146		2150
1147	=item $timer = $timer->start ($tstamp)	2151	=item $timer = $timer->start ($tstamp[, $interval])
1148		2152
1149	Set the event trigger time to C<$tstamp> and start the timer.	2153	Set the event trigger time to C<$tstamp> and start the timer. Optionally
		2154	also replaces the interval.
		2155
		2156	=item $timer = $timer->after ($delay[, $interval])
		2157
		2158	Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1150		2159
1151	=item $timer = $timer->stop	2160	=item $timer = $timer->stop
1152		2161
1153	Stop the timer.	2162	Stop the timer.
1154		2163
…		…
1160		2169
1161	$term->{socket} = ...	2170	$term->{socket} = ...
1162	$term->{iow} = urxvt::iow	2171	$term->{iow} = urxvt::iow
1163	->new	2172	->new
1164	->fd (fileno $term->{socket})	2173	->fd (fileno $term->{socket})
1165	->events (1) # wait for read data	2174	->events (urxvt::EV_READ)
1166	->start	2175	->start
1167	->cb (sub {	2176	->cb (sub {
1168	my ($iow, $revents) = @_;	2177	my ($iow, $revents) = @_;
1169	# $revents must be 1 here, no need to check	2178	# $revents must be 1 here, no need to check
1170	sysread $term->{socket}, my $buf, 8192	2179	sysread $term->{socket}, my $buf, 8192
…		…
1183	Set the callback to be called when io events are triggered. C<$reventmask>	2192	Set the callback to be called when io events are triggered. C<$reventmask>
1184	is a bitset as described in the C<events> method.	2193	is a bitset as described in the C<events> method.
1185		2194
1186	=item $iow = $iow->fd ($fd)	2195	=item $iow = $iow->fd ($fd)
1187		2196
1188	Set the filedescriptor (not handle) to watch.	2197	Set the file descriptor (not handle) to watch.
1189		2198
1190	=item $iow = $iow->events ($eventmask)	2199	=item $iow = $iow->events ($eventmask)
1191		2200
1192	Set the event mask to watch. Bit #0 (value C<1>) enables watching for read	2201	Set the event mask to watch. The only allowed values are
1193	data, Bit #1 (value C<2>) enables watching for write data.	2202	C<urxvt::EV_READ> and C<urxvt::EV_WRITE>, which might be ORed
		2203	together, or C<urxvt::EV_NONE>.
1194		2204
1195	=item $iow = $iow->start	2205	=item $iow = $iow->start
1196		2206
1197	Start watching for requested events on the given handle.	2207	Start watching for requested events on the given handle.
1198		2208
1199	=item $iow = $iow->stop	2209	=item $iow = $iow->stop
1200		2210
1201	Stop watching for events on the given filehandle.	2211	Stop watching for events on the given file handle.
		2212
		2213	=back
		2214
		2215	=head2 The C<urxvt::iw> Class
		2216
		2217	This class implements idle watchers, that get called automatically when
		2218	the process is idle. They should return as fast as possible, after doing
		2219	some useful work.
		2220
		2221	=over 4
		2222
		2223	=item $iw = new urxvt::iw
		2224
		2225	Create a new idle watcher object in stopped state.
		2226
		2227	=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
		2228
		2229	Set the callback to be called when the watcher triggers.
		2230
		2231	=item $timer = $timer->start
		2232
		2233	Start the watcher.
		2234
		2235	=item $timer = $timer->stop
		2236
		2237	Stop the watcher.
		2238
		2239	=back
		2240
		2241	=head2 The C<urxvt::pw> Class
		2242
		2243	This class implements process watchers. They create an event whenever a
		2244	process exits, after which they stop automatically.
		2245
		2246	my $pid = fork;
		2247	...
		2248	$term->{pw} = urxvt::pw
		2249	->new
		2250	->start ($pid)
		2251	->cb (sub {
		2252	my ($pw, $exit_status) = @_;
		2253	...
		2254	});
		2255
		2256	=over 4
		2257
		2258	=item $pw = new urxvt::pw
		2259
		2260	Create a new process watcher in stopped state.
		2261
		2262	=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
		2263
		2264	Set the callback to be called when the timer triggers.
		2265
		2266	=item $pw = $timer->start ($pid)
		2267
		2268	Tells the watcher to start watching for process C<$pid>.
		2269
		2270	=item $pw = $pw->stop
		2271
		2272	Stop the watcher.
1202		2273
1203	=back	2274	=back
1204		2275
1205	=head1 ENVIRONMENT	2276	=head1 ENVIRONMENT
1206		2277
…		…
1209	This variable controls the verbosity level of the perl extension. Higher	2280	This variable controls the verbosity level of the perl extension. Higher
1210	numbers indicate more verbose output.	2281	numbers indicate more verbose output.
1211		2282
1212	=over 4	2283	=over 4
1213		2284
1214	=item =0 - only fatal messages	2285	=item == 0 - fatal messages
1215		2286
1216	=item =3 - script loading and management	2287	=item >= 3 - script loading and management
1217		2288
1218	=item =10 - all events received	2289	=item >=10 - all called hooks
		2290
		2291	=item >=11 - hook return values
1219		2292
1220	=back	2293	=back
1221		2294
1222	=head1 AUTHOR	2295	=head1 AUTHOR
1223		2296
1224	Marc Lehmann <pcg@goof.com>	2297	Marc Lehmann <schmorp@schmorp.de>
1225	http://software.schmorp.de/pkg/rxvt-unicode	2298	http://software.schmorp.de/pkg/rxvt-unicode
1226		2299
1227	=cut	2300	=cut
1228		2301
1229	1	2302	1
		2303
		2304	# vim: sw=3:

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