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Revision 1.68 by root, Mon Jan 9 20:00:31 2006 UTC vs.
Revision 1.210 by root, Wed Jun 6 11:46:11 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
…		…
61	=item option-popup (enabled by default)	97	=item option-popup (enabled by default)
62		98
63	Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at	99	Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at
64	runtime.	100	runtime.
65		101
		102	Other extensions can extend this popup menu by pushing a code reference
		103	onto C<@{ $term->{option_popup_hook} }>, which gets called whenever the
		104	popup is being displayed.
		105
		106	Its sole argument is the popup menu, which can be modified. It should
		107	either return nothing or a string, the initial boolean value and a code
		108	reference. The string will be used as button text and the code reference
		109	will be called when the toggle changes, with the new boolean value as
		110	first argument.
		111
		112	The following will add an entry C<myoption> that changes
		113	C<< $self->{myoption} >>:
		114
		115	push @{ $self->{term}{option_popup_hook} }, sub {
		116	("my option" => $myoption, sub { $self->{myoption} = $_[0] })
		117	};
		118
66	=item selection-popup (enabled by default)	119	=item selection-popup (enabled by default)
67		120
68	Binds a popup menu to Ctrl-Button3 that lets you convert the selection	121	Binds a popup menu to Ctrl-Button3 that lets you convert the selection
69	text into various other formats/action.	122	text into various other formats/action (such as uri unescaping, perl
		123	evaluation, web-browser starting etc.), depending on content.
70		124
71	=item digital-clock	125	Other extensions can extend this popup menu by pushing a code reference
		126	onto C<@{ $term->{selection_popup_hook} }>, which gets called whenever the
		127	popup is being displayed.
72		128
73	Displays a digital clock using the built-in overlay.	129	Its sole argument is the popup menu, which can be modified. The selection
		130	is in C<$_>, 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<$_>.
74		134
75	=item mark-urls	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:
76		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
77	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.
78		315
79	=item block-graphics-to-ascii	316	=item block-graphics-to-ascii
80		317
81	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
82	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
83	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.
84		393
85	=item example-refresh-hooks	394	=item example-refresh-hooks
86		395
87	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
88	window. Illustrates overwriting the refresh callbacks to create your own	397	window. Illustrates overwriting the refresh callbacks to create your own
89	overlays or changes.	398	overlays or changes.
90		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
91	=back	413	=back
		414
		415	=head1 API DOCUMENTATION
92		416
93	=head2 General API Considerations	417	=head2 General API Considerations
94		418
95	All objects (such as terminals, time watchers etc.) are typical	419	All objects (such as terminals, time watchers etc.) are typical
96	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
…		…
108		432
109	=over 4	433	=over 4
110		434
111	=item $text	435	=item $text
112		436
113	Rxvt-unicodes special way of encoding text, where one "unicode" character	437	Rxvt-unicode's special way of encoding text, where one "unicode" character
114	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.
115		439
116	=item $string	440	=item $string
117		441
118	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
119	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
…		…
122	=item $octets	446	=item $octets
123		447
124	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
125	locale-specific way.	449	locale-specific way.
126		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
127	=back	491	=back
128		492
129	=head2 Hooks	493	=head2 Hooks
130		494
131	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
132	called whenever the relevant event happens.	496	called whenever the relevant event happens.
133		497
134	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
135	and extension package. You can call all C<urxvt::term> methods on it, but	499	the in the C<Extension Objects> section.
136	its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
137	object that is shared between all packages is stored in the C<term>
138	member. It is, however, blessed intot he package of the extension script,
139	so for all practical purposes you can treat an extension script as a class.
140		500
141	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
142	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
143	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.
144		504
145	When in doubt, return a false value (preferably C<()>).	505	I<< When in doubt, return a false value (preferably C<()>). >>
146		506
147	=over 4	507	=over 4
148		508
149	=item on_init $term	509	=item on_init $term
150		510
151	Called after a new terminal object has been initialized, but before	511	Called after a new terminal object has been initialized, but before
152	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
153	call or deliver senseless data, as terminal size and other characteristics	513	call or deliver senseless data, as terminal size and other characteristics
154	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
155	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).
156		527
157	=item on_reset $term	528	=item on_reset $term
158		529
159	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
160	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
161	variables.	532	variables.
162		533
163	=item on_start $term	534	=item on_child_start $term, $pid
164		535
165	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.
166	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>.
167		542
168	=item on_sel_make $term, $eventtime	543	=item on_sel_make $term, $eventtime
169		544
170	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
171	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
…		…
178		553
179	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
180	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
181	by calling C<< $term->selection >>.	556	by calling C<< $term->selection >>.
182		557
183	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.
184		559
185	=item on_sel_extend $term	560	=item on_sel_extend $term
186		561
187	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
188	click) and is either supposed to return false (normal operation), or	563	click) and is either supposed to return false (normal operation), or
189	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
190	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.
191		568
192	See the F<selection> example extension.	569	See the F<selection> example extension.
193		570
194	=item on_view_change $term, $offset	571	=item on_view_change $term, $offset
195		572
196	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
197	scrolls. Offset C<0> means display the normal terminal, positive values	574	scrolls. Offset C<0> means display the normal terminal, positive values
198	show this many lines of scrollback.	575	show this many lines of scrollback.
199		576
200	=item on_scroll_back $term, $lines, $saved	577	=item on_scroll_back $term, $lines, $saved
201		578
…		…
205		582
206	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,	583	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
207	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total	584	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
208	number of lines that will be in the scrollback buffer.	585	number of lines that will be in the scrollback buffer.
209		586
210	=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, $resp
211		598
212	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =	599	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
213	operating system command) is processed. Cursor position and other state	600	operating system command) is processed. Cursor position and other state
214	information is up-to-date when this happens. For interoperability, the	601	information is up-to-date when this happens. For interoperability, the
215	string should start with the extension name and a colon, to distinguish	602	string should start with the extension name (sans -osc) and a semicolon,
216	it from commands for other extensions, and this might be enforced in the	603	to distinguish it from commands for other extensions, and this might be
217	future.	604	enforced in the future.
		605
		606	For example, C<overlay-osc> uses this:
		607
		608	sub on_osc_seq_perl {
		609	my ($self, $osc, $resp) = @_;
		610
		611	return unless $osc =~ s/^overlay;//;
		612
		613	... process remaining $osc string
		614	}
218		615
219	Be careful not ever to trust (in a security sense) the data you receive,	616	Be careful not ever to trust (in a security sense) the data you receive,
220	as its source can not easily be controleld (e-mail content, messages from	617	as its source can not easily be controlled (e-mail content, messages from
221	other users on the same system etc.).	618	other users on the same system etc.).
		619
		620	For responses, C<$resp> contains the end-of-args separator used by the
		621	sender.
222		622
223	=item on_add_lines $term, $string	623	=item on_add_lines $term, $string
224		624
225	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
226	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
227	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
228	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
229	output.	629	output.
230		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
231	=item on_line_update $term, $row	643	=item on_line_update $term, $row
232		644
233	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
234	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
235	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,
…		…
242	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
243	you cannot just toggle rendition bits, but only set them.	655	you cannot just toggle rendition bits, but only set them.
244		656
245	=item on_refresh_begin $term	657	=item on_refresh_begin $term
246		658
247	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
248	or similar effects by modify terminal contents in refresh_begin, and	660	similar effects by modifying the terminal contents in refresh_begin, and
249	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
250	code is run after this hook, and takes precedence.	662	code is run after this hook, and takes precedence.
251		663
252	=item on_refresh_end $term	664	=item on_refresh_end $term
253		665
254	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>.
255		667
256	=item on_keyboard_command $term, $string	668	=item on_user_command $term, $string
257		669
258	Called whenever the user presses a key combination that has a	670	Called whenever a user-configured event is being activated (e.g. via
259	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>
260	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.
261		699
262	=item on_focus_in $term	700	=item on_focus_in $term
263		701
264	Called whenever the window gets the keyboard focus, before rxvt-unicode	702	Called whenever the window gets the keyboard focus, before rxvt-unicode
265	does focus in processing.	703	does focus in processing.
266		704
267	=item on_focus_out $term	705	=item on_focus_out $term
268		706
269	Called wheneever the window loses keyboard focus, before rxvt-unicode does	707	Called whenever the window loses keyboard focus, before rxvt-unicode does
270	focus out processing.	708	focus out processing.
271		709
		710	=item on_configure_notify $term, $event
		711
		712	=item on_property_notify $term, $event
		713
272	=item on_key_press $term, $event, $octets	714	=item on_key_press $term, $event, $keysym, $octets
273		715
274	=item on_key_release $term, $event	716	=item on_key_release $term, $event, $keysym
275		717
276	=item on_button_press $term, $event	718	=item on_button_press $term, $event
277		719
278	=item on_button_release $term, $event	720	=item on_button_release $term, $event
279		721
…		…
281		723
282	=item on_map_notify $term, $event	724	=item on_map_notify $term, $event
283		725
284	=item on_unmap_notify $term, $event	726	=item on_unmap_notify $term, $event
285		727
286	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
287	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.
288		730
289	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
290	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
291	and column under the mouse cursor.	733	(real, not screen-based) row and column under the mouse cursor.
292		734
293	C<on_key_press> additionally receives the string rxvt-unicode would	735	C<on_key_press> additionally receives the string rxvt-unicode would
294	output, if any, in locale-specific encoding.	736	output, if any, in locale-specific encoding.
295		737
296	subwindow.	738	subwindow.
297		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
298	=back	753	=back
299		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
300	=head2 Variables in the C<urxvt> Package	780	=head2 Variables in the C<urxvt> Package
301		781
302	=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>.
303		796
304	=item $urxvt::TERM	797	=item $urxvt::TERM
305		798
306	The current terminal. This variable stores the current C<urxvt::term>	799	The current terminal. This variable stores the current C<urxvt::term>
307	object, whenever a callback/hook is executing.	800	object, whenever a callback/hook is executing.
308		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
309	=back	818	=back
310		819
311	=head2 Functions in the C<urxvt> Package	820	=head2 Functions in the C<urxvt> Package
312		821
313	=over 4	822	=over 4
314		823
315	=item $term = new urxvt [arg...]
316
317	Creates a new terminal, very similar as if you had started it with
318	C<system $binfile, arg...>. Croaks (and probably outputs an error message)
319	if the new instance couldn't be created. Returns C<undef> if the new
320	instance didn't initialise perl, and the terminal object otherwise. The
321	C<init> and C<start> hooks will be called during the call.
322
323	=item urxvt::fatal $errormessage	824	=item urxvt::fatal $errormessage
324		825
325	Fatally aborts execution with the given error message. Avoid at all	826	Fatally aborts execution with the given error message (which should
326	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
327	starts up.	828	is acceptable (and useful) is in the init hook, where it prevents the
		829	terminal from starting up.
328		830
329	=item urxvt::warn $string	831	=item urxvt::warn $string
330		832
331	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
332	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
333	that calls this function.	835	that calls this function.
334		836
335	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
336	correct place, e.g. on stderr of the connecting urxvtc client.	838	correct place, e.g. on stderr of the connecting urxvtc client.
337		839
338	=item $is_safe = urxvt::safe	840	Messages have a size limit of 1023 bytes currently.
339		841
340	Returns true when it is safe to do potentially unsafe things, such as	842	=item @terms = urxvt::termlist
341	evaluating perl code specified by the user. This is true when urxvt was	843
342	started setuid or setgid.	844	Returns all urxvt::term objects that exist in this process, regardless of
		845	whether they are started, being destroyed etc., so be careful. Only term
		846	objects that have perl extensions attached will be returned (because there
		847	is no urxvt::term object associated with others).
343		848
344	=item $time = urxvt::NOW	849	=item $time = urxvt::NOW
345		850
346	Returns the "current time" (as per the event loop).	851	Returns the "current time" (as per the event loop).
347		852
348	=item urxvt::CurrentTime	853	=item urxvt::CurrentTime
349		854
350	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,	855	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
351	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,	856	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
352	Button4Mask, Button5Mask, AnyModifier	857	Button4Mask, Button5Mask, AnyModifier
		858
		859	=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
		860	ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
		861	PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
		862	Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
		863	KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
		864	ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
		865	FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
		866
		867	=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
		868	EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
		869	GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
		870	UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
		871	ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
		872	CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
		873	SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
353		874
354	Various constants for use in X calls and event processing.	875	Various constants for use in X calls and event processing.
355		876
356	=back	877	=back
357		878
…		…
374		895
375	=item $rend = urxvt::OVERLAY_RSTYLE	896	=item $rend = urxvt::OVERLAY_RSTYLE
376		897
377	Return the rendition mask used for overlays by default.	898	Return the rendition mask used for overlays by default.
378		899
379	=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
380		902
381	Return the bit that enabled bold, italic, blink, reverse-video and	903	Return the bit that enabled bold, italic, blink, reverse-video and
382	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
383	the bitset.	905	the bitset.
384		906
…		…
386		908
387	=item $background = urxvt::GET_BASEBG $rend	909	=item $background = urxvt::GET_BASEBG $rend
388		910
389	Return the foreground/background colour index, respectively.	911	Return the foreground/background colour index, respectively.
390		912
391	=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)	913	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
392		914
393	=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
394		918
395	Replace the foreground/background colour in the rendition mask with the	919	Replace the foreground/background colour in the rendition mask with the
396	specified one.	920	specified one.
397		921
398	=item $value = urxvt::GET_CUSTOM ($rend)	922	=item $value = urxvt::GET_CUSTOM $rend
399		923
400	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
401	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
402	zero.	926	zero.
403		927
404	=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)	928	=item $rend = urxvt::SET_CUSTOM $rend, $new_value
405		929
406	Change the custom value.	930	Change the custom value.
407		931
408	=back	932	=back
409		933
410	=cut	934	=cut
411		935
412	package urxvt;
413
414	use utf8;
415	use strict;
416	use Scalar::Util ();
417	use List::Util ();
418
419	our $VERSION = 1;
420	our $TERM;
421	our @HOOKNAME;
422	our %OPTION;
423	our $LIBDIR;
424
425	BEGIN {	936	BEGIN {
426	urxvt->bootstrap;
427
428	# overwrite perl's warn	937	# overwrite perl's warn
429	*CORE::GLOBAL::warn = sub {	938	*CORE::GLOBAL::warn = sub {
430	my $msg = join "", @_;	939	my $msg = join "", @_;
431	$msg .= "\n"	940	$msg .= "\n"
432	unless $msg =~ /\n$/;	941	unless $msg =~ /\n$/;
433	urxvt::warn ($msg);	942	urxvt::warn ($msg);
434	};	943	};
435
436	delete $ENV{IFS};
437	delete $ENV{CDPATH};
438	delete $ENV{BASH_ENV};
439	$ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
440	}	944	}
441		945
442	my @hook_count;	946	no warnings 'utf8';
		947
		948	sub parse_resource {
		949	my ($term, $name, $isarg, $longopt, $flag, $value) = @_;
		950
		951	$term->scan_meta;
		952
		953	warn "resourece<@_>\n";#d#
		954
		955	my $r = $term->{meta}{resource};
		956	while (my ($pattern, $v) = each %$r) {
		957	$name =~ y/-/./ if $isarg;
		958
		959	if (
		960	$pattern =~ s/\*$//
		961	? $pattern eq substr $name, 0, length $pattern
		962	: $pattern eq $name
		963	) {
		964	$name = "$urxvt::RESCLASS.$name";
		965	warn "set option <$name=$value>\n";#d#
		966	#TODO: queue $v->[0] for loading
		967	if ($v->[1] eq "boolean") {
		968	$term->put_option_db ($name, $flag ? "true" : "false");
		969	return 1;
		970	} else {
		971	$term->put_option_db ($name, $value);
		972	return 1 + 2;
		973	}
		974	}
		975	}
		976
		977	0
		978	}
		979
		980	sub usage {
		981	my ($term, $usage_type) = @_;
		982
		983	$term->scan_meta;
		984
		985	my $r = $term->{meta}{resource};
		986
		987	for my $pattern (sort keys %$r) {
		988	my ($ext, $type, $desc) = @{ $r->{$pattern} };
		989
		990	$desc .= " (-pe $ext)";
		991
		992	if ($usage_type == 1) {
		993	$pattern =~ y/./-/;
		994	$pattern =~ s/\*/.../g;
		995
		996	if ($type eq "boolean") {
		997	urxvt::log sprintf " -%-30s %s\n", "/+$pattern", $desc;
		998	} else {
		999	urxvt::log sprintf " -%-30s %s\n", "$pattern $type", $desc;
		1000	}
		1001	} else {
		1002	urxvt::log sprintf " %-31s %s\n", "$pattern:", $type;
		1003	}
		1004	}
		1005	}
		1006
443	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};	1007	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
444		1008
445	sub verbose {	1009	sub verbose {
446	my ($level, $msg) = @_;	1010	my ($level, $msg) = @_;
447	warn "$msg\n" if $level <= $verbosity;	1011	warn "$msg\n" if $level <= $verbosity;
448	}	1012	}
449		1013
450	my $extension_pkg = "extension0000";
451	my %extension_pkg;	1014	my %extension_pkg;
452		1015
453	# load a single script into its own package, once only	1016	# load a single script into its own package, once only
454	sub extension_package($) {	1017	sub extension_package($) {
455	my ($path) = @_;	1018	my ($path) = @_;
456		1019
457	$extension_pkg{$path} ||= do {	1020	$extension_pkg{$path} ||= do {
458	my $pkg = "urxvt::" . ($extension_pkg++);	1021	$path =~ /([^\/\\]+)$/;
		1022	my $pkg = $1;
		1023	$pkg =~ s/[^[:word:]]/_/g;
		1024	$pkg = "urxvt::ext::$pkg";
459		1025
460	verbose 3, "loading extension '$path' into package '$pkg'";	1026	verbose 3, "loading extension '$path' into package '$pkg'";
461		1027
462	open my $fh, "<:raw", $path	1028	open my $fh, "<:raw", $path
463	or die "$path: $!";	1029	or die "$path: $!";
464		1030
465	my $source = untaint "package $pkg; use strict; use utf8;\n"	1031	my $source =
466	. "use base urxvt::term::proxy::;\n"	1032	"package $pkg; use strict; use utf8; no warnings 'utf8';\n"
467	. "#line 1 \"$path\"\n{\n"	1033	. "#line 1 \"$path\"\n{\n"
468	. (do { local $/; <$fh> })	1034	. (do { local $/; <$fh> })
469	. "\n};\n1";	1035	. "\n};\n1";
470		1036
		1037	eval $source
471	eval $source or die "$path: $@";	1038	or die "$path: $@";
472		1039
473	$pkg	1040	$pkg
474	}	1041	}
475	}	1042	}
476		1043
…		…
480	sub invoke {	1047	sub invoke {
481	local $TERM = shift;	1048	local $TERM = shift;
482	my $htype = shift;	1049	my $htype = shift;
483		1050
484	if ($htype == 0) { # INIT	1051	if ($htype == 0) { # INIT
485	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");	1052	my @dirs = $TERM->perl_libdirs;
486		1053
487	my %ext_arg;	1054	my %ext_arg;
488		1055
		1056	{
		1057	my @init = @TERM_INIT;
		1058	@TERM_INIT = ();
		1059	$_->($TERM) for @init;
		1060	my @pkg = @TERM_EXT;
		1061	@TERM_EXT = ();
		1062	$TERM->register_package ($_) for @pkg;
		1063	}
		1064
489	for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {	1065	for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
490	if ($_ eq "default") {	1066	if ($_ eq "default") {
491	$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup);	1067	$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
492	} elsif (/^-(.*)$/) {	1068	} elsif (/^-(.*)$/) {
493	delete $ext_arg{$1};	1069	delete $ext_arg{$1};
494	} elsif (/^([^<]+)<(.*)>$/) {	1070	} elsif (/^([^<]+)<(.*)>$/) {
495	push @{ $ext_arg{$1} }, $2;	1071	push @{ $ext_arg{$1} }, $2;
496	} else {	1072	} else {
497	$ext_arg{$_} ||= [];	1073	$ext_arg{$_} ||= [];
498	}	1074	}
499	}	1075	}
500		1076
501	while (my ($ext, $argv) = each %ext_arg) {	1077	for my $ext (sort keys %ext_arg) {
502	my @files = grep -f $_, map "$_/$ext", @dirs;	1078	my @files = grep -f $_, map "$_/$ext", @dirs;
503		1079
504	if (@files) {	1080	if (@files) {
505	$TERM->register_package (extension_package $files[0], $argv);	1081	$TERM->register_package (extension_package $files[0], $ext_arg{$ext});
506	} else {	1082	} else {
507	warn "perl extension '$ext' not found in perl library search path\n";	1083	warn "perl extension '$ext' not found in perl library search path\n";
508	}	1084	}
509	}	1085	}
510		1086
…		…
516		1092
517	if (my $cb = $TERM->{_hook}[$htype]) {	1093	if (my $cb = $TERM->{_hook}[$htype]) {
518	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"	1094	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
519	if $verbosity >= 10;	1095	if $verbosity >= 10;
520		1096
521	keys %$cb;	1097	for my $pkg (keys %$cb) {
522
523	while (my ($pkg, $cb) = each %$cb) {
524	$retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) }	1098	my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg}, @_) };
525	and last;	1099	$retval ||= $retval_;
526		1100
527	if ($@) {	1101	if ($@) {
528	$TERM->ungrab; # better to lose the grab than the session	1102	$TERM->ungrab; # better to lose the grab than the session
529	warn $@;	1103	warn $@;
530	}	1104	}
531	}	1105	}
		1106
		1107	verbose 11, "$HOOKNAME[$htype] returning <$retval>"
		1108	if $verbosity >= 11;
532	}	1109	}
533		1110
534	if ($htype == 1) { # DESTROY	1111	if ($htype == 1) { # DESTROY
535	# remove hooks if unused
536	if (my $hook = $TERM->{_hook}) {
537	for my $htype (0..$#$hook) {
538	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
539	or set_should_invoke $htype, 0;
540	}
541	}
542
543	# clear package objects	1112	# clear package objects
544	%$_ = () for values %{ $TERM->{_pkg} };	1113	%$_ = () for values %{ $TERM->{_pkg} };
545		1114
546	# clear package	1115	# clear package
547	%$TERM = ();	1116	%$TERM = ();
548	}	1117	}
549		1118
550	$retval	1119	$retval
551	}	1120	}
552		1121
553	# urxvt::term::proxy	1122	sub SET_COLOR($$$) {
		1123	SET_BGCOLOR (SET_FGCOLOR ($_[0], $_[1]), $_[2])
		1124	}
554		1125
555	sub urxvt::term::proxy::AUTOLOAD {	1126	sub rend2mask {
556	$urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/	1127	no strict 'refs';
		1128	my ($str, $mask) = (@_, 0);
		1129	my %color = ( fg => undef, bg => undef );
		1130	my @failed;
		1131	for my $spec ( split /\s+/, $str ) {
		1132	if ( $spec =~ /^([fb]g)[_:-]?(\d+)/i ) {
		1133	$color{lc($1)} = $2;
		1134	} else {
		1135	my $neg = $spec =~ s/^[-^]//;
		1136	unless ( exists &{"RS_$spec"} ) {
		1137	push @failed, $spec;
		1138	next;
		1139	}
		1140	my $cur = &{"RS_$spec"};
		1141	if ( $neg ) {
		1142	$mask &= ~$cur;
		1143	} else {
		1144	$mask |= $cur;
		1145	}
		1146	}
		1147	}
		1148	($mask, @color{qw(fg bg)}, \@failed)
		1149	}
		1150
		1151	# urxvt::term::extension
		1152
		1153	package urxvt::term::extension;
		1154
		1155	sub enable {
		1156	my ($self, %hook) = @_;
		1157	my $pkg = $self->{_pkg};
		1158
		1159	while (my ($name, $cb) = each %hook) {
		1160	my $htype = $HOOKTYPE{uc $name};
		1161	defined $htype
		1162	or Carp::croak "unsupported hook type '$name'";
		1163
		1164	$self->set_should_invoke ($htype, +1)
		1165	unless exists $self->{term}{_hook}[$htype]{$pkg};
		1166
		1167	$self->{term}{_hook}[$htype]{$pkg} = $cb;
		1168	}
		1169	}
		1170
		1171	sub disable {
		1172	my ($self, @hook) = @_;
		1173	my $pkg = $self->{_pkg};
		1174
		1175	for my $name (@hook) {
		1176	my $htype = $HOOKTYPE{uc $name};
		1177	defined $htype
		1178	or Carp::croak "unsupported hook type '$name'";
		1179
		1180	$self->set_should_invoke ($htype, -1)
		1181	if delete $self->{term}{_hook}[$htype]{$pkg};
		1182	}
		1183	}
		1184
		1185	our $AUTOLOAD;
		1186
		1187	sub AUTOLOAD {
		1188	$AUTOLOAD =~ /:([^:]+)$/
557	or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";	1189	or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
558		1190
559	eval qq{	1191	eval qq{
560	sub $urxvt::term::proxy::AUTOLOAD {	1192	sub $AUTOLOAD {
561	my \$proxy = shift;	1193	my \$proxy = shift;
562	\$proxy->{term}->$1 (\@_)	1194	\$proxy->{term}->$1 (\@_)
563	}	1195	}
564	1	1196	1
565	} or die "FATAL: unable to compile method forwarder: $@";	1197	} or die "FATAL: unable to compile method forwarder: $@";
566		1198
567	goto &$urxvt::term::proxy::AUTOLOAD;	1199	goto &$AUTOLOAD;
568	}	1200	}
569		1201
570	sub urxvt::term::proxy::DESTROY {	1202	sub DESTROY {
571	# nop	1203	# nop
572	}	1204	}
573		1205
574	# urxvt::destroy_hook	1206	# urxvt::destroy_hook
575		1207
…		…
585		1217
586	=head2 The C<urxvt::anyevent> Class	1218	=head2 The C<urxvt::anyevent> Class
587		1219
588	The sole purpose of this class is to deliver an interface to the	1220	The sole purpose of this class is to deliver an interface to the
589	C<AnyEvent> module - any module using it will work inside urxvt without	1221	C<AnyEvent> module - any module using it will work inside urxvt without
590	further work. The only exception is that you cannot wait on condition	1222	further programming. The only exception is that you cannot wait on
591	variables, but non-blocking condvar use is ok. What this means is that you	1223	condition variables, but non-blocking condvar use is ok.
592	cannot use blocking APIs, but the non-blocking variant should work.	1224
		1225	In practical terms this means is that you cannot use blocking APIs, but
		1226	the non-blocking variant should work.
593		1227
594	=cut	1228	=cut
595		1229
596	our $VERSION = 1;	1230	our $VERSION = '5.23';
597		1231
598	$INC{"urxvt/anyevent.pm"} = 1; # mark us as there	1232	$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
599	push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];	1233	push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
600		1234
601	sub timer {	1235	sub timer {
…		…
603		1237
604	my $cb = $arg{cb};	1238	my $cb = $arg{cb};
605		1239
606	urxvt::timer	1240	urxvt::timer
607	->new	1241	->new
608	->start (urxvt::NOW + $arg{after})	1242	->after ($arg{after}, $arg{interval})
609	->cb (sub {	1243	->cb ($arg{interval} ? $cb : sub {
610	$_[0]->stop; # need to cancel manually	1244	$_[0]->stop; # need to cancel manually
611	$cb->();	1245	$cb->();
612	})	1246	})
613	}	1247	}
614		1248
615	sub io {	1249	sub io {
616	my ($class, %arg) = @_;	1250	my ($class, %arg) = @_;
617		1251
618	my $cb = $arg{cb};	1252	my $cb = $arg{cb};
		1253	my $fd = fileno $arg{fh};
		1254	defined $fd or $fd = $arg{fh};
619		1255
620	bless [$arg{fh}, urxvt::iow	1256	bless [$arg{fh}, urxvt::iow
621	->new	1257	->new
622	->fd (fileno $arg{fh})	1258	->fd ($fd)
623	->events (($arg{poll} =~ /r/ ? 1 : 0)	1259	->events (($arg{poll} =~ /r/ ? 1 : 0)
624	| ($arg{poll} =~ /w/ ? 2 : 0))	1260	| ($arg{poll} =~ /w/ ? 2 : 0))
625	->start	1261	->start
626	->cb (sub {	1262	->cb ($cb)
627	$cb->(($_[1] & 1 ? 'r' : '')
628	. ($_[1] & 2 ? 'w' : ''));
629	})],
630	urxvt::anyevent::	1263	], urxvt::anyevent::
		1264	}
		1265
		1266	sub idle {
		1267	my ($class, %arg) = @_;
		1268
		1269	my $cb = $arg{cb};
		1270
		1271	urxvt::iw
		1272	->new
		1273	->start
		1274	->cb ($cb)
		1275	}
		1276
		1277	sub child {
		1278	my ($class, %arg) = @_;
		1279
		1280	my $cb = $arg{cb};
		1281
		1282	urxvt::pw
		1283	->new
		1284	->start ($arg{pid})
		1285	->cb (sub {
		1286	$_[0]->stop; # need to cancel manually
		1287	$cb->($_[0]->rpid, $_[0]->rstatus);
		1288	})
631	}	1289	}
632		1290
633	sub DESTROY {	1291	sub DESTROY {
634	$_[0][1]->stop;	1292	$_[0][1]->stop;
635	}	1293	}
636		1294
637	sub condvar {	1295	# only needed for AnyEvent < 6 compatibility
638	bless \my $flag, urxvt::anyevent::condvar::	1296	sub one_event {
639	}
640
641	sub urxvt::anyevent::condvar::broadcast {
642	${$_[0]}++;
643	}
644
645	sub urxvt::anyevent::condvar::wait {
646	unless (${$_[0]}) {
647	require Carp;
648	Carp::croak ("AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API");	1297	Carp::croak "AnyEvent->one_event blocking wait unsupported in urxvt, use a non-blocking API";
649	}
650	}	1298	}
651		1299
652	package urxvt::term;	1300	package urxvt::term;
653		1301
654	=head2 The C<urxvt::term> Class	1302	=head2 The C<urxvt::term> Class
…		…
660	# find on_xxx subs in the package and register them	1308	# find on_xxx subs in the package and register them
661	# as hooks	1309	# as hooks
662	sub register_package {	1310	sub register_package {
663	my ($self, $pkg, $argv) = @_;	1311	my ($self, $pkg, $argv) = @_;
664		1312
665	my $proxy = bless { argv => $argv }, $pkg;	1313	no strict 'refs';
		1314
		1315	urxvt::verbose 6, "register package $pkg to $self";
		1316
		1317	@{"$pkg\::ISA"} = urxvt::term::extension::;
		1318
		1319	my $proxy = bless {
		1320	_pkg => $pkg,
		1321	argv => $argv,
		1322	}, $pkg;
666	Scalar::Util::weaken ($proxy->{term} = $TERM);	1323	Scalar::Util::weaken ($proxy->{term} = $self);
667		1324
668	$self->{_pkg}{$pkg} = $proxy;	1325	$self->{_pkg}{$pkg} = $proxy;
669		1326
670	for my $htype (0.. $#HOOKNAME) {	1327	for my $name (@HOOKNAME) {
671	my $name = $HOOKNAME[$htype];
672
673	my $ref = $pkg->can ("on_" . lc $name)	1328	if (my $ref = $pkg->can ("on_" . lc $name)) {
		1329	$proxy->enable ($name => $ref);
		1330	}
		1331	}
		1332	}
		1333
		1334	sub perl_libdirs {
		1335	map { split /:/ }
		1336	$_[0]->resource ("perl_lib"),
		1337	$ENV{URXVT_PERL_LIB},
		1338	"$ENV{HOME}/.urxvt/ext",
		1339	"$LIBDIR/perl"
		1340	}
		1341
		1342	sub scan_meta {
		1343	my ($self) = @_;
		1344	my @libdirs = perl_libdirs $self;
		1345
		1346	return if $self->{meta_libdirs} eq join "\x00", @libdirs;
		1347
		1348	my %meta;
		1349
		1350	$self->{meta_libdirs} = join "\x00", @libdirs;
		1351	$self->{meta} = \%meta;
		1352
		1353	for my $dir (reverse @libdirs) {
		1354	opendir my $fh, $dir
674	or next;	1355	or next;
		1356	for my $ext (readdir $fh) {
		1357	$ext ne "."
		1358	and $ext ne ".."
		1359	and open my $fh, "<", "$dir/$ext"
		1360	or next;
675		1361
676	$self->{_hook}[$htype]{$pkg} = $ref;	1362	while (<$fh>) {
677	$hook_count[$htype]++	1363	if (/^#:META:X_RESOURCE:(.*)/) {
678	or urxvt::set_should_invoke $htype, 1;	1364	my ($pattern, $type, $desc) = split /:/, $1;
		1365	$pattern =~ s/^%\./$ext./g; # $$ in pattern == extension name
		1366	if ($pattern =~ /[^a-zA-Z\*\.]/) {
		1367	warn "$dir/$ext: meta resource '$pattern' contains illegal characters (not alphanumeric nor . nor *)\n";
		1368	} else {
		1369	$meta{resource}{$pattern} = [$ext, $type, $desc];
		1370	}
		1371	} elsif (/^\s*(?:#|$)/) {
		1372	# skip other comments and empty lines
		1373	} else {
		1374	last; # stop parsing on first non-empty non-comment line
		1375	}
		1376	}
		1377	}
679	}	1378	}
680	}	1379	}
681		1380
		1381	=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
		1382
		1383	Creates a new terminal, very similar as if you had started it with system
		1384	C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
		1385	hash which defines the environment of the new terminal.
		1386
		1387	Croaks (and probably outputs an error message) if the new instance
		1388	couldn't be created. Returns C<undef> if the new instance didn't
		1389	initialise perl, and the terminal object otherwise. The C<init> and
		1390	C<start> hooks will be called before this call returns, and are free to
		1391	refer to global data (which is race free).
		1392
		1393	=cut
		1394
		1395	sub new {
		1396	my ($class, $env, @args) = @_;
		1397
		1398	$env or Carp::croak "environment hash missing in call to urxvt::term->new";
		1399	@args or Carp::croak "name argument missing in call to urxvt::term->new";
		1400
		1401	_new ([ map "$_=$env->{$_}", keys %$env ], \@args);
		1402	}
		1403
682	=item $term->destroy	1404	=item $term->destroy
683		1405
684	Destroy the terminal object (close the window, free resources etc.).	1406	Destroy the terminal object (close the window, free resources
		1407	etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
		1408	watchers (timers, io watchers) are still active.
		1409
		1410	=item $term->exec_async ($cmd[, @args])
		1411
		1412	Works like the combination of the C<fork>/C<exec> builtins, which executes
		1413	("starts") programs in the background. This function takes care of setting
		1414	the user environment before exec'ing the command (e.g. C<PATH>) and should
		1415	be preferred over explicit calls to C<exec> or C<system>.
		1416
		1417	Returns the pid of the subprocess or C<undef> on error.
		1418
		1419	=cut
		1420
		1421	sub exec_async {
		1422	my $self = shift;
		1423
		1424	my $pid = fork;
		1425
		1426	return $pid
		1427	if !defined $pid or $pid;
		1428
		1429	%ENV = %{ $self->env };
		1430
		1431	exec @_;
		1432	urxvt::_exit 255;
		1433	}
685		1434
686	=item $isset = $term->option ($optval[, $set])	1435	=item $isset = $term->option ($optval[, $set])
687		1436
688	Returns true if the option specified by C<$optval> is enabled, and	1437	Returns true if the option specified by C<$optval> is enabled, and
689	optionally change it. All option values are stored by name in the hash	1438	optionally change it. All option values are stored by name in the hash
690	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.	1439	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
691		1440
692	Here is a a likely non-exhaustive list of option names, please see the	1441	Here is a likely non-exhaustive list of option names, please see the
693	source file F</src/optinc.h> to see the actual list:	1442	source file F</src/optinc.h> to see the actual list:
694		1443
695	borderLess console cursorBlink cursorUnderline hold iconic insecure	1444	borderLess buffered console cursorBlink cursorUnderline hold iconic
696	intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage	1445	insecure intensityStyles iso14755 iso14755_52 jumpScroll loginShell
		1446	mapAlert meta8 mouseWheelScrollPage override_redirect pastableTabs
697	pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating	1447	pointerBlank reverseVideo scrollBar scrollBar_floating scrollBar_right
698	scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer	1448	scrollTtyKeypress scrollTtyOutput scrollWithBuffer secondaryScreen
699	secondaryScreen secondaryScroll skipBuiltinGlyphs transparent	1449	secondaryScroll skipBuiltinGlyphs skipScroll transparent tripleclickwords
700	tripleclickwords utmpInhibit visualBell	1450	urgentOnBell utmpInhibit visualBell
701		1451
702	=item $value = $term->resource ($name[, $newval])	1452	=item $value = $term->resource ($name[, $newval])
703		1453
704	Returns the current resource value associated with a given name and	1454	Returns the current resource value associated with a given name and
705	optionally sets a new value. Setting values is most useful in the C<init>	1455	optionally sets a new value. Setting values is most useful in the C<init>
…		…
714	likely change).	1464	likely change).
715		1465
716	Please note that resource strings will currently only be freed when the	1466	Please note that resource strings will currently only be freed when the
717	terminal is destroyed, so changing options frequently will eat memory.	1467	terminal is destroyed, so changing options frequently will eat memory.
718		1468
719	Here is a a likely non-exhaustive list of resource names, not all of which	1469	Here is a likely non-exhaustive list of resource names, not all of which
720	are supported in every build, please see the source file F</src/rsinc.h>	1470	are supported in every build, please see the source file F</src/rsinc.h>
721	to see the actual list:	1471	to see the actual list:
722		1472
723	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont	1473	answerbackstring backgroundPixmap backspace_key blendtype blurradius
724	borderLess color cursorBlink cursorUnderline cutchars delete_key	1474	boldFont boldItalicFont borderLess buffered chdir color cursorBlink
725	display_name embed ext_bwidth fade font geometry hold iconName	1475	cursorUnderline cutchars delete_key depth display_name embed ext_bwidth
726	imFont imLocale inputMethod insecure int_bwidth intensityStyles	1476	fade font geometry hold iconName iconfile imFont imLocale inputMethod
		1477	insecure int_bwidth intensityStyles iso14755 iso14755_52 italicFont
727	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier	1478	jumpScroll letterSpace lineSpace loginShell mapAlert meta8 modifier
728	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2	1479	mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
729	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd	1480	perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
730	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating	1481	preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
731	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput	1482	scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
732	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle	1483	scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
733	shade term_name title transparent transparent_all tripleclickwords	1484	secondaryScreen secondaryScroll shade skipBuiltinGlyphs skipScroll
		1485	term_name title transient_for transparent tripleclickwords urgentOnBell
734	utmpInhibit visualBell	1486	utmpInhibit visualBell
735		1487
736	=cut	1488	=cut
737		1489
738	sub resource($$;$) {	1490	sub resource($$;$) {
739	my ($self, $name) = (shift, shift);	1491	my ($self, $name) = (shift, shift);
740	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);	1492	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
741	&urxvt::term::_resource	1493	goto &urxvt::term::_resource
742	}	1494	}
		1495
		1496	=item $value = $term->x_resource ($pattern)
		1497
		1498	Returns the X-Resource for the given pattern, excluding the program or
		1499	class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
		1500	same value as used by this instance of rxvt-unicode. Returns C<undef> if no
		1501	resource with that pattern exists.
		1502
		1503	This method should only be called during the C<on_start> hook, as there is
		1504	only one resource database per display, and later invocations might return
		1505	the wrong resources.
		1506
		1507	=item $success = $term->parse_keysym ($key, $octets)
		1508
		1509	Adds a key binding exactly as specified via a resource. See the
		1510	C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
		1511
		1512	=item $term->register_command ($keysym, $modifiermask, $string)
		1513
		1514	Adds a key binding. This is a lower level api compared to
		1515	C<parse_keysym>, as it expects a parsed key description, and can be
		1516	used only inside either the C<on_init> hook, to add a binding, or the
		1517	C<on_register_command> hook, to modify a parsed binding.
743		1518
744	=item $rend = $term->rstyle ([$new_rstyle])	1519	=item $rend = $term->rstyle ([$new_rstyle])
745		1520
746	Return and optionally change the current rendition. Text that is output by	1521	Return and optionally change the current rendition. Text that is output by
747	the terminal application will use this style.	1522	the terminal application will use this style.
…		…
755		1530
756	=item ($row, $col) = $term->selection_beg ([$row, $col])	1531	=item ($row, $col) = $term->selection_beg ([$row, $col])
757		1532
758	=item ($row, $col) = $term->selection_end ([$row, $col])	1533	=item ($row, $col) = $term->selection_end ([$row, $col])
759		1534
760	Return the current values of the selection mark, begin or end positions,	1535	Return the current values of the selection mark, begin or end positions.
761	and optionally set them to new values.
762		1536
		1537	When arguments are given, then the selection coordinates are set to
		1538	C<$row> and C<$col>, and the selection screen is set to the current
		1539	screen.
		1540
		1541	=item $screen = $term->selection_screen ([$screen])
		1542
		1543	Returns the current selection screen, and then optionally sets it.
		1544
		1545	=item $term->selection_make ($eventtime[, $rectangular])
		1546
		1547	Tries to make a selection as set by C<selection_beg> and
		1548	C<selection_end>. If C<$rectangular> is true (default: false), a
		1549	rectangular selection will be made. This is the preferred function to make
		1550	a selection.
		1551
763	=item $success = $term->selection_grab ($eventtime)	1552	=item $success = $term->selection_grab ($eventtime[, $clipboard])
764		1553
765	Try to request the primary selection from the server (for example, as set	1554	Try to acquire ownership of the primary (clipboard if C<$clipboard> is
766	by the next method).	1555	true) selection from the server. The corresponding text can be set
		1556	with the next method. No visual feedback will be given. This function
		1557	is mostly useful from within C<on_sel_grab> hooks.
767		1558
768	=item $oldtext = $term->selection ([$newtext])	1559	=item $oldtext = $term->selection ([$newtext, $clipboard])
769		1560
770	Return the current selection text and optionally replace it by C<$newtext>.	1561	Return the current selection (clipboard if C<$clipboard> is true) text
		1562	and optionally replace it by C<$newtext>.
771		1563
		1564	=item $term->selection_clear ([$clipboard])
		1565
		1566	Revoke ownership of the primary (clipboard if C<$clipboard> is true) selection.
		1567
772	#=item $term->overlay ($x, $y, $text)	1568	=item $term->overlay_simple ($x, $y, $text)
773	#	1569
774	#Create a simple multi-line overlay box. See the next method for details.	1570	Create a simple multi-line overlay box. See the next method for details.
775	#	1571
776	#=cut	1572	=cut
777	#	1573
778	#sub urxvt::term::scr_overlay {	1574	sub overlay_simple {
779	# my ($self, $x, $y, $text) = @_;	1575	my ($self, $x, $y, $text) = @_;
780	#	1576
781	# my @lines = split /\n/, $text;	1577	my @lines = split /\n/, $text;
782	#	1578
783	# my $w = 0;	1579	my $w = List::Util::max map $self->strwidth ($_), @lines;
784	# for (map $self->strwidth ($_), @lines) {	1580
785	# $w = $_ if $w < $_;
786	# }
787	#
788	# $self->scr_overlay_new ($x, $y, $w, scalar @lines);	1581	my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
789	# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;	1582	$overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
790	#}	1583
		1584	$overlay
		1585	}
791		1586
792	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])	1587	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
793		1588
794	Create a new (empty) overlay at the given position with the given	1589	Create a new (empty) overlay at the given position with the given
795	width/height. C<$rstyle> defines the initial rendition style	1590	width/height. C<$rstyle> defines the initial rendition style
…		…
806		1601
807	The methods currently supported on C<urxvt::overlay> objects are:	1602	The methods currently supported on C<urxvt::overlay> objects are:
808		1603
809	=over 4	1604	=over 4
810		1605
811	=item $overlay->set ($x, $y, $text, $rend)	1606	=item $overlay->set ($x, $y, $text[, $rend])
812		1607
813	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts	1608	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts
814	text in rxvt-unicode's special encoding and an array of rendition values	1609	text in rxvt-unicode's special encoding and an array of rendition values
815	at a specific position inside the overlay.	1610	at a specific position inside the overlay.
		1611
		1612	If C<$rend> is missing, then the rendition will not be changed.
816		1613
817	=item $overlay->hide	1614	=item $overlay->hide
818		1615
819	If visible, hide the overlay, but do not destroy it.	1616	If visible, hide the overlay, but do not destroy it.
820		1617
…		…
862		1659
863	=item $string = $term->locale_decode ($octets)	1660	=item $string = $term->locale_decode ($octets)
864		1661
865	Convert the given locale-encoded octets into a perl string.	1662	Convert the given locale-encoded octets into a perl string.
866		1663
		1664	=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
		1665
		1666	XORs the rendition values in the given span with the provided value
		1667	(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
		1668	refresh hooks to provide effects similar to the selection.
		1669
		1670	=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
		1671
		1672	Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
		1673	whitespace will additionally be xored with the C<$rstyle2>, which defaults
		1674	to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
		1675	it instead. Both styles I<MUST NOT> contain font styles.
		1676
		1677	=item $term->scr_bell
		1678
		1679	Ring the bell!
		1680
867	=item $term->scr_add_lines ($string)	1681	=item $term->scr_add_lines ($string)
868		1682
869	Write the given text string to the screen, as if output by the application	1683	Write the given text string to the screen, as if output by the application
870	running inside the terminal. It may not contain command sequences (escape	1684	running inside the terminal. It may not contain command sequences (escape
871	codes), but is free to use line feeds, carriage returns and tabs. The	1685	codes), but is free to use line feeds, carriage returns and tabs. The
…		…
873		1687
874	Normally its not a good idea to use this function, as programs might be	1688	Normally its not a good idea to use this function, as programs might be
875	confused by changes in cursor position or scrolling. Its useful inside a	1689	confused by changes in cursor position or scrolling. Its useful inside a
876	C<on_add_lines> hook, though.	1690	C<on_add_lines> hook, though.
877		1691
		1692	=item $term->scr_change_screen ($screen)
		1693
		1694	Switch to given screen - 0 primary, 1 secondary.
		1695
878	=item $term->cmd_parse ($octets)	1696	=item $term->cmd_parse ($octets)
879		1697
880	Similar to C<scr_add_lines>, but the argument must be in the	1698	Similar to C<scr_add_lines>, but the argument must be in the
881	locale-specific encoding of the terminal and can contain command sequences	1699	locale-specific encoding of the terminal and can contain command sequences
882	(escape codes) that will be interpreted.	1700	(escape codes) that will be interpreted.
883		1701
884	=item $term->tt_write ($octets)	1702	=item $term->tt_write ($octets)
885		1703
886	Write the octets given in C<$data> to the tty (i.e. as program input). To	1704	Write the octets given in C<$octets> to the tty (i.e. as program input). To
887	pass characters instead of octets, you should convert your strings first	1705	pass characters instead of octets, you should convert your strings first
888	to the locale-specific encoding using C<< $term->locale_encode >>.	1706	to the locale-specific encoding using C<< $term->locale_encode >>.
889		1707
		1708	=item $term->tt_paste ($octets)
		1709
		1710	Write the octets given in C<$octets> to the tty as a paste, converting NL to
		1711	CR and bracketing the data with control sequences if bracketed paste mode
		1712	is set.
		1713
		1714	=item $old_events = $term->pty_ev_events ([$new_events])
		1715
		1716	Replaces the event mask of the pty watcher by the given event mask. Can
		1717	be used to suppress input and output handling to the pty/tty. See the
		1718	description of C<< urxvt::timer->events >>. Make sure to always restore
		1719	the previous value.
		1720
		1721	=item $fd = $term->pty_fd
		1722
		1723	Returns the master file descriptor for the pty in use, or C<-1> if no pty
		1724	is used.
		1725
890	=item $windowid = $term->parent	1726	=item $windowid = $term->parent
891		1727
892	Return the window id of the toplevel window.	1728	Return the window id of the toplevel window.
893		1729
894	=item $windowid = $term->vt	1730	=item $windowid = $term->vt
895		1731
896	Return the window id of the terminal window.	1732	Return the window id of the terminal window.
897		1733
		1734	=item $term->vt_emask_add ($x_event_mask)
		1735
		1736	Adds the specified events to the vt event mask. Useful e.g. when you want
		1737	to receive pointer events all the times:
		1738
		1739	$term->vt_emask_add (urxvt::PointerMotionMask);
		1740
		1741	=item $term->set_urgency ($set)
		1742
		1743	Enable/disable the urgency hint on the toplevel window.
		1744
		1745	=item $term->focus_in
		1746
		1747	=item $term->focus_out
		1748
		1749	=item $term->key_press ($state, $keycode[, $time])
		1750
		1751	=item $term->key_release ($state, $keycode[, $time])
		1752
		1753	Deliver various fake events to to terminal.
		1754
898	=item $window_width = $term->width	1755	=item $window_width = $term->width
899		1756
900	=item $window_height = $term->height	1757	=item $window_height = $term->height
901		1758
902	=item $font_width = $term->fwidth	1759	=item $font_width = $term->fwidth
…		…
915		1772
916	=item $max_scrollback = $term->saveLines	1773	=item $max_scrollback = $term->saveLines
917		1774
918	=item $nrow_plus_saveLines = $term->total_rows	1775	=item $nrow_plus_saveLines = $term->total_rows
919		1776
920	=item $lines_in_scrollback = $term->nsaved	1777	=item $topmost_scrollback_row = $term->top_row
921		1778
922	Return various integers describing terminal characteristics.	1779	Return various integers describing terminal characteristics.
923		1780
		1781	=item $x_display = $term->display_id
		1782
		1783	Return the DISPLAY used by rxvt-unicode.
		1784
924	=item $lc_ctype = $term->locale	1785	=item $lc_ctype = $term->locale
925		1786
926	Returns the LC_CTYPE category string used by this rxvt-unicode.	1787	Returns the LC_CTYPE category string used by this rxvt-unicode.
927		1788
928	=item $x_display = $term->display_id	1789	=item $env = $term->env
929		1790
930	Return the DISPLAY used by rxvt-unicode.	1791	Returns a copy of the environment in effect for the terminal as a hashref
		1792	similar to C<\%ENV>.
		1793
		1794	=item @envv = $term->envv
		1795
		1796	Returns the environment as array of strings of the form C<VAR=VALUE>.
		1797
		1798	=item @argv = $term->argv
		1799
		1800	Return the argument vector as this terminal, similar to @ARGV, but
		1801	includes the program name as first element.
		1802
		1803	=cut
		1804
		1805	sub env {
		1806	+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), $_[0]->envv }
		1807	}
931		1808
932	=item $modifiermask = $term->ModLevel3Mask	1809	=item $modifiermask = $term->ModLevel3Mask
933		1810
934	=item $modifiermask = $term->ModMetaMask	1811	=item $modifiermask = $term->ModMetaMask
935		1812
936	=item $modifiermask = $term->ModNumLockMask	1813	=item $modifiermask = $term->ModNumLockMask
937		1814
938	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often	1815	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
939	AltGr), the meta key (often Alt) and the num lock key, if applicable.	1816	AltGr), the meta key (often Alt) and the num lock key, if applicable.
940		1817
		1818	=item $screen = $term->current_screen
		1819
		1820	Returns the currently displayed screen (0 primary, 1 secondary).
		1821
		1822	=item $cursor_is_hidden = $term->hidden_cursor
		1823
		1824	Returns whether the cursor is currently hidden or not.
		1825
941	=item $view_start = $term->view_start ([$newvalue])	1826	=item $view_start = $term->view_start ([$newvalue])
942		1827
943	Returns the negative row number of the topmost line. Minimum value is	1828	Returns the row number of the topmost displayed line. Maximum value is
944	C<0>, which displays the normal terminal contents. Larger values scroll	1829	C<0>, which displays the normal terminal contents. Lower values scroll
945	this many lines into the scrollback buffer.	1830	this many lines into the scrollback buffer.
946		1831
947	=item $term->want_refresh	1832	=item $term->want_refresh
948		1833
949	Requests a screen refresh. At the next opportunity, rxvt-unicode will	1834	Requests a screen refresh. At the next opportunity, rxvt-unicode will
…		…
952		1837
953	Used after changing terminal contents to display them.	1838	Used after changing terminal contents to display them.
954		1839
955	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])	1840	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
956		1841
957	Returns the text of the entire row with number C<$row_number>. Row C<0>	1842	Returns the text of the entire row with number C<$row_number>. Row C<< $term->top_row >>
958	is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost	1843	is the topmost terminal line, row C<< $term->nrow-1 >> is the bottommost
959	terminal line. The scrollback buffer starts at line C<-1> and extends to
960	line C<< -$term->nsaved >>. Nothing will be returned if a nonexistent line	1844	terminal line. Nothing will be returned if a nonexistent line
961	is requested.	1845	is requested.
962		1846
963	If C<$new_text> is specified, it will replace characters in the current	1847	If C<$new_text> is specified, it will replace characters in the current
964	line, starting at column C<$start_col> (default C<0>), which is useful	1848	line, starting at column C<$start_col> (default C<0>), which is useful
965	to replace only parts of a line. The font index in the rendition will	1849	to replace only parts of a line. The font index in the rendition will
966	automatically be updated.	1850	automatically be updated.
967		1851
968	C<$text> is in a special encoding: tabs and wide characters that use more	1852	C<$text> is in a special encoding: tabs and wide characters that use more
969	than one cell when displayed are padded with urxvt::NOCHAR characters	1853	than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
970	(C<chr 65535>). Characters with combining characters and other characters	1854	characters. Characters with combining characters and other characters that
971	that do not fit into the normal tetx encoding will be replaced with	1855	do not fit into the normal text encoding will be replaced with characters
972	characters in the private use area.	1856	in the private use area.
973		1857
974	You have to obey this encoding when changing text. The advantage is	1858	You have to obey this encoding when changing text. The advantage is
975	that C<substr> and similar functions work on screen cells and not on	1859	that C<substr> and similar functions work on screen cells and not on
976	characters.	1860	characters.
977		1861
…		…
1028	Return the row number of the first/last row of the line, respectively.	1912	Return the row number of the first/last row of the line, respectively.
1029		1913
1030	=item $offset = $line->offset_of ($row, $col)	1914	=item $offset = $line->offset_of ($row, $col)
1031		1915
1032	Returns the character offset of the given row|col pair within the logical	1916	Returns the character offset of the given row|col pair within the logical
1033	line.	1917	line. Works for rows outside the line, too, and returns corresponding
		1918	offsets outside the string.
1034		1919
1035	=item ($row, $col) = $line->coord_of ($offset)	1920	=item ($row, $col) = $line->coord_of ($offset)
1036		1921
1037	Translates a string offset into terminal coordinates again.	1922	Translates a string offset into terminal coordinates again.
1038		1923
…		…
1120	where one character corresponds to one screen cell. See	2005	where one character corresponds to one screen cell. See
1121	C<< $term->ROW_t >> for details.	2006	C<< $term->ROW_t >> for details.
1122		2007
1123	=item $string = $term->special_decode $text	2008	=item $string = $term->special_decode $text
1124		2009
1125	Converts rxvt-unicodes text reprsentation into a perl string. See	2010	Converts rxvt-unicodes text representation into a perl string. See
1126	C<< $term->ROW_t >> for details.	2011	C<< $term->ROW_t >> for details.
1127		2012
1128	=item $success = $term->grab_button ($button, $modifiermask)	2013	=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
1129		2014
		2015	=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
		2016
1130	Registers a synchronous button grab. See the XGrabButton manpage.	2017	Register/unregister a synchronous button grab. See the XGrabButton
		2018	manpage.
1131		2019
1132	=item $success = $term->grab ($eventtime[, $sync])	2020	=item $success = $term->grab ($eventtime[, $sync])
1133		2021
1134	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or	2022	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
1135	synchronous (C<$sync> is true). Also remembers the grab timestampe.	2023	synchronous (C<$sync> is true). Also remembers the grab timestamp.
1136		2024
1137	=item $term->allow_events_async	2025	=item $term->allow_events_async
1138		2026
1139	Calls XAllowEvents with AsyncBoth for the most recent grab.	2027	Calls XAllowEvents with AsyncBoth for the most recent grab.
1140		2028
…		…
1147	Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most	2035	Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
1148	recent grab.	2036	recent grab.
1149		2037
1150	=item $term->ungrab	2038	=item $term->ungrab
1151		2039
1152	Calls XUngrab for the most recent grab. Is called automatically on	2040	Calls XUngrabPointer and XUngrabKeyboard for the most recent grab. Is called automatically on
1153	evaluation errors, as it is better to lose the grab in the error case as	2041	evaluation errors, as it is better to lose the grab in the error case as
1154	the session.	2042	the session.
		2043
		2044	=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
		2045
		2046	=item $atom_name = $term->XGetAtomName ($atom)
		2047
		2048	=item @atoms = $term->XListProperties ($window)
		2049
		2050	=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
		2051
		2052	=item $term->XChangeProperty ($window, $property, $type, $format, $octets)
		2053
		2054	=item $term->XDeleteProperty ($window, $property)
		2055
		2056	=item $window = $term->DefaultRootWindow
		2057
		2058	=item $term->XReparentWindow ($window, $parent, [$x, $y])
		2059
		2060	=item $term->XMapWindow ($window)
		2061
		2062	=item $term->XUnmapWindow ($window)
		2063
		2064	=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
		2065
		2066	=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
		2067
		2068	=item $term->XChangeInput ($window, $add_events[, $del_events])
		2069
		2070	=item $keysym = $term->XStringToKeysym ($string)
		2071
		2072	=item $string = $term->XKeysymToString ($keysym)
		2073
		2074	Various X or X-related functions. The C<$term> object only serves as
		2075	the source of the display, otherwise those functions map more-or-less
		2076	directly onto the X functions of the same name.
1155		2077
1156	=back	2078	=back
1157		2079
1158	=cut	2080	=cut
1159		2081
…		…
1174		2096
1175	$item->{render} ||= sub { $_[0]{text} };	2097	$item->{render} ||= sub { $_[0]{text} };
1176		2098
1177	push @{ $self->{item} }, $item;	2099	push @{ $self->{item} }, $item;
1178	}	2100	}
		2101
		2102	=item $popup->add_title ($title)
		2103
		2104	Adds a non-clickable title to the popup.
		2105
		2106	=cut
		2107
		2108	sub add_title {
		2109	my ($self, $title) = @_;
		2110
		2111	$self->add_item ({
		2112	rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
		2113	text => $title,
		2114	activate => sub { },
		2115	});
		2116	}
		2117
		2118	=item $popup->add_separator ([$sepchr])
		2119
		2120	Creates a separator, optionally using the character given as C<$sepchr>.
		2121
		2122	=cut
1179		2123
1180	sub add_separator {	2124	sub add_separator {
1181	my ($self, $sep) = @_;	2125	my ($self, $sep) = @_;
1182		2126
1183	$sep ||= "=";	2127	$sep ||= "=";
…		…
1188	render => sub { $sep x $self->{term}->ncol },	2132	render => sub { $sep x $self->{term}->ncol },
1189	activate => sub { },	2133	activate => sub { },
1190	});	2134	});
1191	}	2135	}
1192		2136
1193	sub add_title {	2137	=item $popup->add_button ($text, $cb)
1194	my ($self, $title) = @_;
1195		2138
1196	$self->add_item ({	2139	Adds a clickable button to the popup. C<$cb> is called whenever it is
1197	rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },	2140	selected.
1198	text => $title,	2141
1199	activate => sub { },	2142	=cut
1200	});
1201	}
1202		2143
1203	sub add_button {	2144	sub add_button {
1204	my ($self, $text, $cb) = @_;	2145	my ($self, $text, $cb) = @_;
1205		2146
1206	$self->add_item ({ type => "button", text => $text, activate => $cb});	2147	$self->add_item ({ type => "button", text => $text, activate => $cb});
1207	}	2148	}
1208		2149
		2150	=item $popup->add_toggle ($text, $initial_value, $cb)
		2151
		2152	Adds a toggle/checkbox item to the popup. The callback gets called
		2153	whenever it gets toggled, with a boolean indicating its new value as its
		2154	first argument.
		2155
		2156	=cut
		2157
1209	sub add_toggle {	2158	sub add_toggle {
1210	my ($self, $text, $cb, $value) = @_;	2159	my ($self, $text, $value, $cb) = @_;
1211		2160
1212	my $item; $item = {	2161	my $item; $item = {
1213	type => "button",	2162	type => "button",
1214	text => " $text",	2163	text => " $text",
1215	value => $value,	2164	value => $value,
1216	render => sub { ($_[0]{value} ? "* " : " ") . $text },	2165	render => sub { ($_[0]{value} ? "* " : " ") . $text },
1217	activate => sub { $cb->($_[0]{value} = !$_[0]{value}); },	2166	activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
1218	};	2167	};
1219		2168
1220	$self->add_item ($item);	2169	$self->add_item ($item);
1221	}	2170	}
		2171
		2172	=item $popup->show
		2173
		2174	Displays the popup (which is initially hidden).
		2175
		2176	=cut
1222		2177
1223	sub show {	2178	sub show {
1224	my ($self) = @_;	2179	my ($self) = @_;
1225		2180
1226	local $urxvt::popup::self = $self;	2181	local $urxvt::popup::self = $self;
1227		2182
		2183	my $env = $self->{term}->env;
		2184	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
		2185	delete $env->{LC_ALL};
1228	local $ENV{LC_ALL} = $self->{term}->locale;	2186	$env->{LC_CTYPE} = $self->{term}->locale;
1229		2187
1230	urxvt->new ("--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0,	2188	my $term = urxvt::term->new (
		2189	$env, "popup",
		2190	"--perl-lib" => "", "--perl-ext-common" => "",
		2191	"-pty-fd" => -1, "-sl" => 0,
		2192	"-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1231	"--transient-for" => $self->{term}->parent,	2193	"--transient-for" => $self->{term}->parent,
1232	"-display" => $self->{term}->display_id,	2194	"-display" => $self->{term}->display_id,
1233	"-pe" => "urxvt-popup")	2195	"-pe" => "urxvt-popup",
1234	or die "unable to create popup window\n";	2196	) or die "unable to create popup window\n";
		2197
		2198	unless (delete $term->{urxvt_popup_init_done}) {
		2199	$term->ungrab;
		2200	$term->destroy;
		2201	die "unable to initialise popup window\n";
		2202	}
1235	}	2203	}
1236		2204
1237	sub DESTROY {	2205	sub DESTROY {
1238	my ($self) = @_;	2206	my ($self) = @_;
1239		2207
1240	delete $self->{term}{_destroy}{$self};	2208	delete $self->{term}{_destroy}{$self};
1241	$self->{term}->ungrab;	2209	$self->{term}->ungrab;
1242	}	2210	}
		2211
		2212	=back
		2213
		2214	=cut
		2215
		2216	package urxvt::watcher;
1243		2217
1244	=head2 The C<urxvt::timer> Class	2218	=head2 The C<urxvt::timer> Class
1245		2219
1246	This class implements timer watchers/events. Time is represented as a	2220	This class implements timer watchers/events. Time is represented as a
1247	fractional number of seconds since the epoch. Example:	2221	fractional number of seconds since the epoch. Example:
…		…
1251	->new	2225	->new
1252	->interval (1)	2226	->interval (1)
1253	->cb (sub {	2227	->cb (sub {
1254	$term->{overlay}->set (0, 0,	2228	$term->{overlay}->set (0, 0,
1255	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);	2229	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
1256	});	2230	});
1257		2231
1258	=over 4	2232	=over 4
1259		2233
1260	=item $timer = new urxvt::timer	2234	=item $timer = new urxvt::timer
1261		2235
…		…
1264		2238
1265	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })	2239	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })
1266		2240
1267	Set the callback to be called when the timer triggers.	2241	Set the callback to be called when the timer triggers.
1268		2242
1269	=item $tstamp = $timer->at
1270
1271	Return the time this watcher will fire next.
1272
1273	=item $timer = $timer->set ($tstamp)	2243	=item $timer = $timer->set ($tstamp[, $interval])
1274		2244
1275	Set the time the event is generated to $tstamp.	2245	Set the time the event is generated to $tstamp (and optionally specifies a
		2246	new $interval).
1276		2247
1277	=item $timer = $timer->interval ($interval)	2248	=item $timer = $timer->interval ($interval)
1278		2249
1279	Normally (and when C<$interval> is C<0>), the timer will automatically	2250	By default (and when C<$interval> is C<0>), the timer will automatically
1280	stop after it has fired once. If C<$interval> is non-zero, then the timer	2251	stop after it has fired once. If C<$interval> is non-zero, then the timer
1281	is automatically rescheduled at the given intervals.	2252	is automatically rescheduled at the given intervals.
1282		2253
1283	=item $timer = $timer->start	2254	=item $timer = $timer->start
1284		2255
1285	Start the timer.	2256	Start the timer.
1286		2257
1287	=item $timer = $timer->start ($tstamp)	2258	=item $timer = $timer->start ($tstamp[, $interval])
1288		2259
1289	Set the event trigger time to C<$tstamp> and start the timer.	2260	Set the event trigger time to C<$tstamp> and start the timer. Optionally
		2261	also replaces the interval.
		2262
		2263	=item $timer = $timer->after ($delay[, $interval])
		2264
		2265	Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1290		2266
1291	=item $timer = $timer->stop	2267	=item $timer = $timer->stop
1292		2268
1293	Stop the timer.	2269	Stop the timer.
1294		2270
…		…
1300		2276
1301	$term->{socket} = ...	2277	$term->{socket} = ...
1302	$term->{iow} = urxvt::iow	2278	$term->{iow} = urxvt::iow
1303	->new	2279	->new
1304	->fd (fileno $term->{socket})	2280	->fd (fileno $term->{socket})
1305	->events (1) # wait for read data	2281	->events (urxvt::EV_READ)
1306	->start	2282	->start
1307	->cb (sub {	2283	->cb (sub {
1308	my ($iow, $revents) = @_;	2284	my ($iow, $revents) = @_;
1309	# $revents must be 1 here, no need to check	2285	# $revents must be 1 here, no need to check
1310	sysread $term->{socket}, my $buf, 8192	2286	sysread $term->{socket}, my $buf, 8192
…		…
1323	Set the callback to be called when io events are triggered. C<$reventmask>	2299	Set the callback to be called when io events are triggered. C<$reventmask>
1324	is a bitset as described in the C<events> method.	2300	is a bitset as described in the C<events> method.
1325		2301
1326	=item $iow = $iow->fd ($fd)	2302	=item $iow = $iow->fd ($fd)
1327		2303
1328	Set the filedescriptor (not handle) to watch.	2304	Set the file descriptor (not handle) to watch.
1329		2305
1330	=item $iow = $iow->events ($eventmask)	2306	=item $iow = $iow->events ($eventmask)
1331		2307
1332	Set the event mask to watch. Bit #0 (value C<1>) enables watching for read	2308	Set the event mask to watch. The only allowed values are
1333	data, Bit #1 (value C<2>) enables watching for write data.	2309	C<urxvt::EV_READ> and C<urxvt::EV_WRITE>, which might be ORed
		2310	together, or C<urxvt::EV_NONE>.
1334		2311
1335	=item $iow = $iow->start	2312	=item $iow = $iow->start
1336		2313
1337	Start watching for requested events on the given handle.	2314	Start watching for requested events on the given handle.
1338		2315
1339	=item $iow = $iow->stop	2316	=item $iow = $iow->stop
1340		2317
1341	Stop watching for events on the given filehandle.	2318	Stop watching for events on the given file handle.
		2319
		2320	=back
		2321
		2322	=head2 The C<urxvt::iw> Class
		2323
		2324	This class implements idle watchers, that get called automatically when
		2325	the process is idle. They should return as fast as possible, after doing
		2326	some useful work.
		2327
		2328	=over 4
		2329
		2330	=item $iw = new urxvt::iw
		2331
		2332	Create a new idle watcher object in stopped state.
		2333
		2334	=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
		2335
		2336	Set the callback to be called when the watcher triggers.
		2337
		2338	=item $timer = $timer->start
		2339
		2340	Start the watcher.
		2341
		2342	=item $timer = $timer->stop
		2343
		2344	Stop the watcher.
		2345
		2346	=back
		2347
		2348	=head2 The C<urxvt::pw> Class
		2349
		2350	This class implements process watchers. They create an event whenever a
		2351	process exits, after which they stop automatically.
		2352
		2353	my $pid = fork;
		2354	...
		2355	$term->{pw} = urxvt::pw
		2356	->new
		2357	->start ($pid)
		2358	->cb (sub {
		2359	my ($pw, $exit_status) = @_;
		2360	...
		2361	});
		2362
		2363	=over 4
		2364
		2365	=item $pw = new urxvt::pw
		2366
		2367	Create a new process watcher in stopped state.
		2368
		2369	=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
		2370
		2371	Set the callback to be called when the timer triggers.
		2372
		2373	=item $pw = $timer->start ($pid)
		2374
		2375	Tells the watcher to start watching for process C<$pid>.
		2376
		2377	=item $pw = $pw->stop
		2378
		2379	Stop the watcher.
1342		2380
1343	=back	2381	=back
1344		2382
1345	=head1 ENVIRONMENT	2383	=head1 ENVIRONMENT
1346		2384
…		…
1353		2391
1354	=item == 0 - fatal messages	2392	=item == 0 - fatal messages
1355		2393
1356	=item >= 3 - script loading and management	2394	=item >= 3 - script loading and management
1357		2395
1358	=item >=10 - all events received	2396	=item >=10 - all called hooks
		2397
		2398	=item >=11 - hook return values
1359		2399
1360	=back	2400	=back
1361		2401
1362	=head1 AUTHOR	2402	=head1 AUTHOR
1363		2403
1364	Marc Lehmann <pcg@goof.com>	2404	Marc Lehmann <schmorp@schmorp.de>
1365	http://software.schmorp.de/pkg/rxvt-unicode	2405	http://software.schmorp.de/pkg/rxvt-unicode
1366		2406
1367	=cut	2407	=cut
1368		2408
1369	1	2409	1
		2410
		2411	# vim: sw=3:

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