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Revision 1.51 by root, Sun Jan 8 00:27:47 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	49	=item selection (enabled by default)
43		50
44	Intelligent selection. This extension tries to be more intelligent when	51	(More) intelligent selection. This extension tries to be more intelligent
45	the user extends selections (double-click). Right now, it tries to select	52	when the user extends selections (double-click and further clicks). Right
46	urls and complete shell-quoted arguments, which is very convenient, too,	53	now, it tries to select words, urls and complete shell-quoted
47	if your F<ls> supports C<--quoting-style=shell>.	54	arguments, which is very convenient, too, if your F<ls> supports
		55	C<--quoting-style=shell>.
48		56
49	It also offers the following bindable event:	57	A double-click usually selects the word under the cursor, further clicks
		58	will enlarge the selection.
		59
		60	The selection works by trying to match a number of regexes and displaying
		61	them in increasing order of length. You can add your own regexes by
		62	specifying resources of the form:
		63
		64	URxvt.selection.pattern-0: perl-regex
		65	URxvt.selection.pattern-1: perl-regex
		66	...
		67
		68	The index number (0, 1...) must not have any holes, and each regex must
		69	contain at least one pair of capturing parentheses, which will be used for
		70	the match. For example, the following adds a regex that matches everything
		71	between two vertical bars:
		72
		73	URxvt.selection.pattern-0: \\|([^|]+)\\|
		74
		75	Another example: Programs I use often output "absolute path: " at the
		76	beginning of a line when they process multiple files. The following
		77	pattern matches the filename (note, there is a single space at the very
		78	end):
		79
		80	URxvt.selection.pattern-0: ^(/[^:]+):\
		81
		82	You can look at the source of the selection extension to see more
		83	interesting uses, such as parsing a line from beginning to end.
		84
		85	This extension also offers following bindable keyboard commands:
50		86
51	=over 4	87	=over 4
52		88
53	=item rot13	89	=item rot13
54		90
…		…
56		92
57	URxvt.keysym.C-M-r: perl:selection:rot13	93	URxvt.keysym.C-M-r: perl:selection:rot13
58		94
59	=back	95	=back
60		96
61	=item digital-clock	97	=item option-popup (enabled by default)
62		98
63	Displays a digital clock using the built-in overlay.	99	Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at
		100	runtime.
64		101
65	=item mark-urls	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.
66		105
		106	Its sole argument is the popup menu, which can be modified. It should
		107	either return nothing or a string, the initial boolean value and a code
		108	reference. The string will be used as button text and the code reference
		109	will be called when the toggle changes, with the new boolean value as
		110	first argument.
		111
		112	The following will add an entry C<myoption> that changes
		113	C<< $self->{myoption} >>:
		114
		115	push @{ $self->{term}{option_popup_hook} }, sub {
		116	("my option" => $myoption, sub { $self->{myoption} = $_[0] })
		117	};
		118
		119	=item selection-popup (enabled by default)
		120
		121	Binds a popup menu to Ctrl-Button3 that lets you convert the selection
		122	text into various other formats/action (such as uri unescaping, perl
		123	evaluation, web-browser starting etc.), depending on content.
		124
		125	Other extensions can extend this popup menu by pushing a code reference
		126	onto C<@{ $term->{selection_popup_hook} }>, which gets called whenever the
		127	popup is being displayed.
		128
		129	Its sole argument is the popup menu, which can be modified. The selection
		130	is in C<$_>, which can be used to decide whether to add something or not.
		131	It should either return nothing or a string and a code reference. The
		132	string will be used as button text and the code reference will be called
		133	when the button gets activated and should transform C<$_>.
		134
		135	The following will add an entry C<a to b> that transforms all C<a>s in
		136	the selection to C<b>s, but only if the selection currently contains any
		137	C<a>s:
		138
		139	push @{ $self->{term}{selection_popup_hook} }, sub {
		140	/a/ ? ("a to b" => sub { s/a/b/g }
		141	: ()
		142	};
		143
		144	=item searchable-scrollback<hotkey> (enabled by default)
		145
		146	Adds regex search functionality to the scrollback buffer, triggered
		147	by a hotkey (default: C<M-s>). While in search mode, normal terminal
		148	input/output is suspended and a regex is displayed at the bottom of the
		149	screen.
		150
		151	Inputting characters appends them to the regex and continues incremental
		152	search. C<BackSpace> removes a character from the regex, C<Up> and C<Down>
		153	search upwards/downwards in the scrollback buffer, C<End> jumps to the
		154	bottom. C<Escape> leaves search mode and returns to the point where search
		155	was started, while C<Enter> or C<Return> stay at the current position and
		156	additionally stores the first match in the current line into the primary
		157	selection if the C<Shift> modifier is active.
		158
		159	The regex defaults to "(?i)", resulting in a case-insensitive search. To
		160	get a case-sensitive search you can delete this prefix using C<BackSpace>
		161	or simply use an uppercase character which removes the "(?i)" prefix.
		162
		163	See L<perlre> for more info about perl regular expression syntax.
		164
		165	=item readline (enabled by default)
		166
		167	A support package that tries to make editing with readline easier. At
		168	the moment, it reacts to clicking shift-left mouse button by trying to
		169	move the text cursor to this position. It does so by generating as many
		170	cursor-left or cursor-right keypresses as required (this only works
		171	for programs that correctly support wide characters).
		172
		173	To avoid too many false positives, this is only done when:
		174
		175	=over 4
		176
		177	=item - the tty is in ICANON state.
		178
		179	=item - the text cursor is visible.
		180
		181	=item - the primary screen is currently being displayed.
		182
		183	=item - the mouse is on the same (multi-row-) line as the text cursor.
		184
		185	=back
		186
		187	The normal selection mechanism isn't disabled, so quick successive clicks
		188	might interfere with selection creation in harmless ways.
		189
		190	=item selection-autotransform
		191
		192	This selection allows you to do automatic transforms on a selection
		193	whenever a selection is made.
		194
		195	It works by specifying perl snippets (most useful is a single C<s///>
		196	operator) that modify C<$_> as resources:
		197
		198	URxvt.selection-autotransform.0: transform
		199	URxvt.selection-autotransform.1: transform
		200	...
		201
		202	For example, the following will transform selections of the form
		203	C<filename:number>, often seen in compiler messages, into C<vi +$filename
		204	$word>:
		205
		206	URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
		207
		208	And this example matches the same,but replaces it with vi-commands you can
		209	paste directly into your (vi :) editor:
		210
		211	URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
		212
		213	Of course, this can be modified to suit your needs and your editor :)
		214
		215	To expand the example above to typical perl error messages ("XXX at
		216	FILENAME line YYY."), you need a slightly more elaborate solution:
		217
		218	URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
		219	URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
		220
		221	The first line tells the selection code to treat the unchanging part of
		222	every error message as a selection pattern, and the second line transforms
		223	the message into vi commands to load the file.
		224
		225	=item tabbed
		226
		227	This transforms the terminal into a tabbar with additional terminals, that
		228	is, it implements what is commonly referred to as "tabbed terminal". The topmost line
		229	displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
		230	button per tab.
		231
		232	Clicking a button will activate that tab. Pressing B<Shift-Left> and
		233	B<Shift-Right> will switch to the tab left or right of the current one,
		234	while B<Shift-Down> creates a new tab.
		235
		236	The tabbar itself can be configured similarly to a normal terminal, but
		237	with a resource class of C<URxvt.tabbed>. In addition, it supports the
		238	following four resources (shown with defaults):
		239
		240	URxvt.tabbed.tabbar-fg: <colour-index, default 3>
		241	URxvt.tabbed.tabbar-bg: <colour-index, default 0>
		242	URxvt.tabbed.tab-fg: <colour-index, default 0>
		243	URxvt.tabbed.tab-bg: <colour-index, default 1>
		244
		245	See I<COLOR AND GRAPHICS> in the @@RXVT_NAME@@(1) manpage for valid
		246	indices.
		247
		248	=item matcher
		249
67	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.
68		315
69	=item block-graphics-to-ascii	316	=item block-graphics-to-ascii
70		317
71	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
72	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
73	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.
74		393
75	=item example-refresh-hooks	394	=item example-refresh-hooks
76		395
77	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
78	window. Illustrates overwriting the refresh callbacks to create your own	397	window. Illustrates overwriting the refresh callbacks to create your own
79	overlays or changes.	398	overlays or changes.
80		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
81	=back	413	=back
		414
		415	=head1 API DOCUMENTATION
82		416
83	=head2 General API Considerations	417	=head2 General API Considerations
84		418
85	All objects (such as terminals, time watchers etc.) are typical	419	All objects (such as terminals, time watchers etc.) are typical
86	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
…		…
98		432
99	=over 4	433	=over 4
100		434
101	=item $text	435	=item $text
102		436
103	Rxvt-unicodes special way of encoding text, where one "unicode" character	437	Rxvt-unicode's special way of encoding text, where one "unicode" character
104	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.
105		439
106	=item $string	440	=item $string
107		441
108	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
109	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
…		…
112	=item $octets	446	=item $octets
113		447
114	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
115	locale-specific way.	449	locale-specific way.
116		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
117	=back	491	=back
118		492
119	=head2 Hooks	493	=head2 Hooks
120		494
121	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
122	called whenever the relevant event happens.	496	called whenever the relevant event happens.
123		497
124	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
125	and extension package. You can call all C<urxvt::term> methods on it, but	499	the in the C<Extension Objects> section.
126	its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
127	object that is shared between all packages is stored in the C<term>
128	member. It is, however, blessed intot he package of the extension script,
129	so for all practical purposes you can treat an extension script as a class.
130		500
131	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
132	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
133	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.
134		504
135	When in doubt, return a false value (preferably C<()>).	505	I<< When in doubt, return a false value (preferably C<()>). >>
136		506
137	=over 4	507	=over 4
138		508
139	=item on_init $term	509	=item on_init $term
140		510
141	Called after a new terminal object has been initialized, but before	511	Called after a new terminal object has been initialized, but before
142	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
143	call or deliver senseless data, as terminal size and other characteristics	513	call or deliver senseless data, as terminal size and other characteristics
144	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
145	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).
146		527
147	=item on_reset $term	528	=item on_reset $term
148		529
149	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
150	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
151	variables.	532	variables.
152		533
153	=item on_start $term	534	=item on_child_start $term, $pid
154		535
155	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.
156	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>.
157		542
158	=item on_sel_make $term, $eventtime	543	=item on_sel_make $term, $eventtime
159		544
160	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
161	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
…		…
168		553
169	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
170	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
171	by calling C<< $term->selection >>.	556	by calling C<< $term->selection >>.
172		557
173	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.
174		559
175	=item on_sel_extend $term	560	=item on_sel_extend $term
176		561
177	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
178	click) and is either supposed to return false (normal operation), or	563	click) and is either supposed to return false (normal operation), or
179	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
180	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.
181		568
182	See the F<selection> example extension.	569	See the F<selection> example extension.
183		570
184	=item on_view_change $term, $offset	571	=item on_view_change $term, $offset
185		572
186	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
187	scrolls. Offset C<0> means display the normal terminal, positive values	574	scrolls. Offset C<0> means display the normal terminal, positive values
188	show this many lines of scrollback.	575	show this many lines of scrollback.
189		576
190	=item on_scroll_back $term, $lines, $saved	577	=item on_scroll_back $term, $lines, $saved
191		578
…		…
195		582
196	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,	583	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
197	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total	584	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
198	number of lines that will be in the scrollback buffer.	585	number of lines that will be in the scrollback buffer.
199		586
200	=item on_tty_activity $term *NYI*
201
202	Called whenever the program(s) running in the urxvt window send output.
203
204	=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, $resp
205		598
206	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =	599	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
207	operating system command) is processed. Cursor position and other state	600	operating system command) is processed. Cursor position and other state
208	information is up-to-date when this happens. For interoperability, the	601	information is up-to-date when this happens. For interoperability, the
209	string should start with the extension name and a colon, to distinguish	602	string should start with the extension name (sans -osc) and a semicolon,
210	it from commands for other extensions, and this might be enforced in the	603	to distinguish it from commands for other extensions, and this might be
211	future.	604	enforced in the future.
		605
		606	For example, C<overlay-osc> uses this:
		607
		608	sub on_osc_seq_perl {
		609	my ($self, $osc, $resp) = @_;
		610
		611	return unless $osc =~ s/^overlay;//;
		612
		613	... process remaining $osc string
		614	}
212		615
213	Be careful not ever to trust (in a security sense) the data you receive,	616	Be careful not ever to trust (in a security sense) the data you receive,
214	as its source can not easily be controleld (e-mail content, messages from	617	as its source can not easily be controlled (e-mail content, messages from
215	other users on the same system etc.).	618	other users on the same system etc.).
		619
		620	For responses, C<$resp> contains the end-of-args separator used by the
		621	sender.
216		622
217	=item on_add_lines $term, $string	623	=item on_add_lines $term, $string
218		624
219	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
220	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
221	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
222	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
223	output.	629	output.
224		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
225	=item on_line_update $term, $row	643	=item on_line_update $term, $row
226		644
227	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
228	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
229	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,
…		…
236	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
237	you cannot just toggle rendition bits, but only set them.	655	you cannot just toggle rendition bits, but only set them.
238		656
239	=item on_refresh_begin $term	657	=item on_refresh_begin $term
240		658
241	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
242	or similar effects by modify terminal contents in refresh_begin, and	660	similar effects by modifying the terminal contents in refresh_begin, and
243	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
244	code is run after this hook, and takes precedence.	662	code is run after this hook, and takes precedence.
245		663
246	=item on_refresh_end $term	664	=item on_refresh_end $term
247		665
248	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>.
249		667
250	=item on_keyboard_command $term, $string	668	=item on_user_command $term, $string
251		669
252	Called whenever the user presses a key combination that has a	670	Called whenever a user-configured event is being activated (e.g. via
253	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>
254	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.
255		699
256	=item on_focus_in $term	700	=item on_focus_in $term
257		701
258	Called whenever the window gets the keyboard focus, before rxvt-unicode	702	Called whenever the window gets the keyboard focus, before rxvt-unicode
259	does focus in processing.	703	does focus in processing.
260		704
261	=item on_focus_out $term	705	=item on_focus_out $term
262		706
263	Called wheneever the window loses keyboard focus, before rxvt-unicode does	707	Called whenever the window loses keyboard focus, before rxvt-unicode does
264	focus out processing.	708	focus out processing.
265		709
		710	=item on_configure_notify $term, $event
		711
		712	=item on_property_notify $term, $event
		713
266	=item on_key_press $term, $event, $octets	714	=item on_key_press $term, $event, $keysym, $octets
267		715
268	=item on_key_release $term, $event	716	=item on_key_release $term, $event, $keysym
269		717
270	=item on_button_press $term, $event	718	=item on_button_press $term, $event
271		719
272	=item on_button_release $term, $event	720	=item on_button_release $term, $event
273		721
…		…
275		723
276	=item on_map_notify $term, $event	724	=item on_map_notify $term, $event
277		725
278	=item on_unmap_notify $term, $event	726	=item on_unmap_notify $term, $event
279		727
280	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
281	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.
282		730
283	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
284	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
285	and column under the mouse cursor.	733	(real, not screen-based) row and column under the mouse cursor.
286		734
287	C<on_key_press> additionally receives the string rxvt-unicode would	735	C<on_key_press> additionally receives the string rxvt-unicode would
288	output, if any, in locale-specific encoding.	736	output, if any, in locale-specific encoding.
289		737
290	subwindow.	738	subwindow.
291		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
292	=back	753	=back
293		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
294	=head2 Variables in the C<urxvt> Package	780	=head2 Variables in the C<urxvt> Package
295		781
296	=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>.
297		796
298	=item $urxvt::TERM	797	=item $urxvt::TERM
299		798
300	The current terminal. This variable stores the current C<urxvt::term>	799	The current terminal. This variable stores the current C<urxvt::term>
301	object, whenever a callback/hook is executing.	800	object, whenever a callback/hook is executing.
302		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
303	=back	818	=back
304		819
305	=head2 Functions in the C<urxvt> Package	820	=head2 Functions in the C<urxvt> Package
306		821
307	=over 4	822	=over 4
308		823
309	=item $term = new urxvt [arg...]
310
311	Creates a new terminal, very similar as if you had started it with
312	C<system $binfile, arg...>. Croaks (and probably outputs an error message)
313	if the new instance couldn't be created. Returns C<undef> if the new
314	instance didn't initialise perl, and the terminal object otherwise. The
315	C<init> and C<start> hooks will be called during the call.
316
317	=item urxvt::fatal $errormessage	824	=item urxvt::fatal $errormessage
318		825
319	Fatally aborts execution with the given error message. Avoid at all	826	Fatally aborts execution with the given error message (which should
320	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
321	starts up.	828	is acceptable (and useful) is in the init hook, where it prevents the
		829	terminal from starting up.
322		830
323	=item urxvt::warn $string	831	=item urxvt::warn $string
324		832
325	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
326	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
327	that calls this function.	835	that calls this function.
328		836
329	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
330	correct place, e.g. on stderr of the connecting urxvtc client.	838	correct place, e.g. on stderr of the connecting urxvtc client.
		839
		840	Messages have a size limit of 1023 bytes currently.
		841
		842	=item @terms = urxvt::termlist
		843
		844	Returns all urxvt::term objects that exist in this process, regardless of
		845	whether they are started, being destroyed etc., so be careful. Only term
		846	objects that have perl extensions attached will be returned (because there
		847	is no urxvt::term object associated with others).
331		848
332	=item $time = urxvt::NOW	849	=item $time = urxvt::NOW
333		850
334	Returns the "current time" (as per the event loop).	851	Returns the "current time" (as per the event loop).
335		852
…		…
337		854
338	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,	855	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
339	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,	856	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
340	Button4Mask, Button5Mask, AnyModifier	857	Button4Mask, Button5Mask, AnyModifier
341		858
		859	=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
		860	ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
		861	PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
		862	Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
		863	KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
		864	ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
		865	FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
		866
		867	=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
		868	EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
		869	GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
		870	UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
		871	ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
		872	CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
		873	SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
		874
342	Various constants for use in X events.	875	Various constants for use in X calls and event processing.
343		876
344	=back	877	=back
345		878
346	=head2 RENDITION	879	=head2 RENDITION
347		880
…		…
362		895
363	=item $rend = urxvt::OVERLAY_RSTYLE	896	=item $rend = urxvt::OVERLAY_RSTYLE
364		897
365	Return the rendition mask used for overlays by default.	898	Return the rendition mask used for overlays by default.
366		899
367	=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
368		902
369	Return the bit that enabled bold, italic, blink, reverse-video and	903	Return the bit that enabled bold, italic, blink, reverse-video and
370	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
371	the bitset.	905	the bitset.
372		906
…		…
374		908
375	=item $background = urxvt::GET_BASEBG $rend	909	=item $background = urxvt::GET_BASEBG $rend
376		910
377	Return the foreground/background colour index, respectively.	911	Return the foreground/background colour index, respectively.
378		912
379	=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)	913	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
380		914
381	=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
382		918
383	Replace the foreground/background colour in the rendition mask with the	919	Replace the foreground/background colour in the rendition mask with the
384	specified one.	920	specified one.
385		921
386	=item $value = urxvt::GET_CUSTOM ($rend)	922	=item $value = urxvt::GET_CUSTOM $rend
387		923
388	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
389	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
390	zero.	926	zero.
391		927
392	=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)	928	=item $rend = urxvt::SET_CUSTOM $rend, $new_value
393		929
394	Change the custom value.	930	Change the custom value.
395		931
396	=back	932	=back
397		933
398	=cut	934	=cut
399		935
400	package urxvt;
401
402	use utf8;
403	use strict;
404	use Scalar::Util ();
405	use List::Util ();
406
407	our $TERM;
408	our @HOOKNAME;
409	our %OPTION;
410	our $LIBDIR;
411
412	BEGIN {	936	BEGIN {
413	urxvt->bootstrap;
414
415	# overwrite perl's warn	937	# overwrite perl's warn
416	*CORE::GLOBAL::warn = sub {	938	*CORE::GLOBAL::warn = sub {
417	my $msg = join "", @_;	939	my $msg = join "", @_;
418	$msg .= "\n"	940	$msg .= "\n"
419	unless $msg =~ /\n$/;	941	unless $msg =~ /\n$/;
420	urxvt::warn ($msg);	942	urxvt::warn ($msg);
421	};	943	};
422	}	944	}
423		945
424	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
425	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};	1007	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
426		1008
427	sub verbose {	1009	sub verbose {
428	my ($level, $msg) = @_;	1010	my ($level, $msg) = @_;
429	warn "$msg\n" if $level <= $verbosity;	1011	warn "$msg\n" if $level <= $verbosity;
430	}	1012	}
431		1013
432	# find on_xxx subs in the package and register them
433	# as hooks
434	sub register_package($) {
435	my ($pkg) = @_;
436
437	for my $htype (0.. $#HOOKNAME) {
438	my $name = $HOOKNAME[$htype];
439
440	my $ref = $pkg->can ("on_" . lc $name)
441	or next;
442
443	$TERM->{_hook}[$htype]{$pkg} = $ref;
444	$hook_count[$htype]++
445	or set_should_invoke $htype, 1;
446	}
447	}
448
449	my $extension_pkg = "extension0000";
450	my %extension_pkg;	1014	my %extension_pkg;
451		1015
452	# load a single script into its own package, once only	1016	# load a single script into its own package, once only
453	sub extension_package($) {	1017	sub extension_package($) {
454	my ($path) = @_;	1018	my ($path) = @_;
455		1019
456	$extension_pkg{$path} ||= do {	1020	$extension_pkg{$path} ||= do {
457	my $pkg = "urxvt::" . ($extension_pkg++);	1021	$path =~ /([^\/\\]+)$/;
		1022	my $pkg = $1;
		1023	$pkg =~ s/[^[:word:]]/_/g;
		1024	$pkg = "urxvt::ext::$pkg";
458		1025
459	verbose 3, "loading extension '$path' into package '$pkg'";	1026	verbose 3, "loading extension '$path' into package '$pkg'";
460		1027
461	open my $fh, "<:raw", $path	1028	open my $fh, "<:raw", $path
462	or die "$path: $!";	1029	or die "$path: $!";
463		1030
464	my $source = "package $pkg; use strict; use utf8;\n"	1031	my $source =
465	. "use base urxvt::term::proxy::;\n"	1032	"package $pkg; use strict; use utf8; no warnings 'utf8';\n"
466	. "#line 1 \"$path\"\n{\n"	1033	. "#line 1 \"$path\"\n{\n"
467	. (do { local $/; <$fh> })	1034	. (do { local $/; <$fh> })
468	. "\n};\n1";	1035	. "\n};\n1";
469		1036
		1037	eval $source
470	eval $source or die "$path: $@";	1038	or die "$path: $@";
471		1039
472	$pkg	1040	$pkg
473	}	1041	}
474	}	1042	}
475		1043
…		…
479	sub invoke {	1047	sub invoke {
480	local $TERM = shift;	1048	local $TERM = shift;
481	my $htype = shift;	1049	my $htype = shift;
482		1050
483	if ($htype == 0) { # INIT	1051	if ($htype == 0) { # INIT
484	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");	1052	my @dirs = $TERM->perl_libdirs;
		1053
		1054	my %ext_arg;
		1055
485		1056	{
486	my %want_ext;	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	}
487		1064
488	for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {	1065	for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
489	if ($_ eq "default") {	1066	if ($_ eq "default") {
490	$want_ext{$_}++ for qw(selection option-popup);	1067	$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
491	} elsif (/^-(.*)$/) {	1068	} elsif (/^-(.*)$/) {
492	delete $want_ext{$1};	1069	delete $ext_arg{$1};
		1070	} elsif (/^([^<]+)<(.*)>$/) {
		1071	push @{ $ext_arg{$1} }, $2;
493	} else {	1072	} else {
494	$want_ext{$_}++;	1073	$ext_arg{$_} ||= [];
495	}	1074	}
496	}	1075	}
497		1076
498	for my $ext (keys %want_ext) {	1077	for my $ext (sort keys %ext_arg) {
499	my @files = grep -f $_, map "$_/$ext", @dirs;	1078	my @files = grep -f $_, map "$_/$ext", @dirs;
500		1079
501	if (@files) {	1080	if (@files) {
502	register_package extension_package $files[0];	1081	$TERM->register_package (extension_package $files[0], $ext_arg{$ext});
503	} else {	1082	} else {
504	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";
505	}	1084	}
506	}	1085	}
		1086
		1087	eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval");
		1088	warn $@ if $@;
507	}	1089	}
508		1090
509	$retval = undef;	1091	$retval = undef;
510		1092
511	if (my $cb = $TERM->{_hook}[$htype]) {	1093	if (my $cb = $TERM->{_hook}[$htype]) {
512	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"	1094	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
513	if $verbosity >= 10;	1095	if $verbosity >= 10;
514		1096
515	keys %$cb;	1097	for my $pkg (keys %$cb) {
		1098	my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg}, @_) };
		1099	$retval ||= $retval_;
516		1100
517	while (my ($pkg, $cb) = each %$cb) {	1101	if ($@) {
518	eval {	1102	$TERM->ungrab; # better to lose the grab than the session
519	$retval = $cb->(	1103	warn $@;
520	$TERM->{_pkg}{$pkg} ||= do {
521	my $proxy = bless { }, $pkg;
522	Scalar::Util::weaken ($proxy->{term} = $TERM);
523	$proxy
524	},
525	@_,
526	) and last;
527	};
528	warn $@ if $@;#d#
529	}
530	}
531
532	if ($htype == 1) { # DESTROY
533	# remove hooks if unused
534	if (my $hook = $TERM->{_hook}) {
535	for my $htype (0..$#$hook) {
536	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
537	or set_should_invoke $htype, 0;
538	}	1104	}
539	}	1105	}
540		1106
		1107	verbose 11, "$HOOKNAME[$htype] returning <$retval>"
		1108	if $verbosity >= 11;
		1109	}
		1110
		1111	if ($htype == 1) { # DESTROY
541	# clear package objects	1112	# clear package objects
542	%$_ = () for values %{ $TERM->{_pkg} };	1113	%$_ = () for values %{ $TERM->{_pkg} };
543		1114
544	# clear package	1115	# clear package
545	%$TERM = ();	1116	%$TERM = ();
546	}	1117	}
547		1118
548	$retval	1119	$retval
549	}	1120	}
550		1121
551	sub urxvt::term::proxy::AUTOLOAD {	1122	sub SET_COLOR($$$) {
552	$urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/	1123	SET_BGCOLOR (SET_FGCOLOR ($_[0], $_[1]), $_[2])
		1124	}
		1125
		1126	sub rend2mask {
		1127	no strict 'refs';
		1128	my ($str, $mask) = (@_, 0);
		1129	my %color = ( fg => undef, bg => undef );
		1130	my @failed;
		1131	for my $spec ( split /\s+/, $str ) {
		1132	if ( $spec =~ /^([fb]g)[_:-]?(\d+)/i ) {
		1133	$color{lc($1)} = $2;
		1134	} else {
		1135	my $neg = $spec =~ s/^[-^]//;
		1136	unless ( exists &{"RS_$spec"} ) {
		1137	push @failed, $spec;
		1138	next;
		1139	}
		1140	my $cur = &{"RS_$spec"};
		1141	if ( $neg ) {
		1142	$mask &= ~$cur;
		1143	} else {
		1144	$mask |= $cur;
		1145	}
		1146	}
		1147	}
		1148	($mask, @color{qw(fg bg)}, \@failed)
		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 =~ /:([^:]+)$/
553	or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";	1189	or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
554		1190
555	eval qq{	1191	eval qq{
556	sub $urxvt::term::proxy::AUTOLOAD {	1192	sub $AUTOLOAD {
557	my \$proxy = shift;	1193	my \$proxy = shift;
558	\$proxy->{term}->$1 (\@_)	1194	\$proxy->{term}->$1 (\@_)
559	}	1195	}
560	1	1196	1
561	} or die "FATAL: unable to compile method forwarder: $@";	1197	} or die "FATAL: unable to compile method forwarder: $@";
562		1198
563	goto &$urxvt::term::proxy::AUTOLOAD;	1199	goto &$AUTOLOAD;
564	}	1200	}
		1201
		1202	sub DESTROY {
		1203	# nop
		1204	}
		1205
		1206	# urxvt::destroy_hook
565		1207
566	sub urxvt::destroy_hook::DESTROY {	1208	sub urxvt::destroy_hook::DESTROY {
567	${$_[0]}->();	1209	${$_[0]}->();
568	}	1210	}
569		1211
570	sub urxvt::destroy_hook(&) {	1212	sub urxvt::destroy_hook(&) {
571	bless \shift, urxvt::destroy_hook::	1213	bless \shift, urxvt::destroy_hook::
572	}	1214	}
573		1215
		1216	package urxvt::anyevent;
		1217
		1218	=head2 The C<urxvt::anyevent> Class
		1219
		1220	The sole purpose of this class is to deliver an interface to the
		1221	C<AnyEvent> module - any module using it will work inside urxvt without
		1222	further programming. The only exception is that you cannot wait on
		1223	condition variables, but non-blocking condvar use is ok.
		1224
		1225	In practical terms this means is that you cannot use blocking APIs, but
		1226	the non-blocking variant should work.
		1227
		1228	=cut
		1229
		1230	our $VERSION = '5.23';
		1231
		1232	$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
		1233	push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
		1234
		1235	sub timer {
		1236	my ($class, %arg) = @_;
		1237
		1238	my $cb = $arg{cb};
		1239
		1240	urxvt::timer
		1241	->new
		1242	->after ($arg{after}, $arg{interval})
		1243	->cb ($arg{interval} ? $cb : sub {
		1244	$_[0]->stop; # need to cancel manually
		1245	$cb->();
		1246	})
		1247	}
		1248
		1249	sub io {
		1250	my ($class, %arg) = @_;
		1251
		1252	my $cb = $arg{cb};
		1253	my $fd = fileno $arg{fh};
		1254	defined $fd or $fd = $arg{fh};
		1255
		1256	bless [$arg{fh}, urxvt::iow
		1257	->new
		1258	->fd ($fd)
		1259	->events (($arg{poll} =~ /r/ ? 1 : 0)
		1260	| ($arg{poll} =~ /w/ ? 2 : 0))
		1261	->start
		1262	->cb ($cb)
		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	})
		1289	}
		1290
		1291	sub DESTROY {
		1292	$_[0][1]->stop;
		1293	}
		1294
		1295	# only needed for AnyEvent < 6 compatibility
		1296	sub one_event {
		1297	Carp::croak "AnyEvent->one_event blocking wait unsupported in urxvt, use a non-blocking API";
		1298	}
		1299
		1300	package urxvt::term;
		1301
574	=head2 The C<urxvt::term> Class	1302	=head2 The C<urxvt::term> Class
575		1303
576	=over 4	1304	=over 4
577		1305
		1306	=cut
		1307
		1308	# find on_xxx subs in the package and register them
		1309	# as hooks
		1310	sub register_package {
		1311	my ($self, $pkg, $argv) = @_;
		1312
		1313	no strict 'refs';
		1314
		1315	urxvt::verbose 6, "register package $pkg to $self";
		1316
		1317	@{"$pkg\::ISA"} = urxvt::term::extension::;
		1318
		1319	my $proxy = bless {
		1320	_pkg => $pkg,
		1321	argv => $argv,
		1322	}, $pkg;
		1323	Scalar::Util::weaken ($proxy->{term} = $self);
		1324
		1325	$self->{_pkg}{$pkg} = $proxy;
		1326
		1327	for my $name (@HOOKNAME) {
		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
		1355	or next;
		1356	for my $ext (readdir $fh) {
		1357	$ext ne "."
		1358	and $ext ne ".."
		1359	and open my $fh, "<", "$dir/$ext"
		1360	or next;
		1361
		1362	while (<$fh>) {
		1363	if (/^#:META:X_RESOURCE:(.*)/) {
		1364	my ($pattern, $type, $desc) = split /:/, $1;
		1365	$pattern =~ s/^%\./$ext./g; # $$ in pattern == extension name
		1366	if ($pattern =~ /[^a-zA-Z\*\.]/) {
		1367	warn "$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	}
		1378	}
		1379	}
		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
578	=item $term->destroy	1404	=item $term->destroy
579		1405
580	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	}
581		1434
582	=item $isset = $term->option ($optval[, $set])	1435	=item $isset = $term->option ($optval[, $set])
583		1436
584	Returns true if the option specified by C<$optval> is enabled, and	1437	Returns true if the option specified by C<$optval> is enabled, and
585	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
586	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.
587		1440
588	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
589	source file F</src/optinc.h> to see the actual list:	1442	source file F</src/optinc.h> to see the actual list:
590		1443
591	borderLess console cursorBlink cursorUnderline hold iconic insecure	1444	borderLess buffered console cursorBlink cursorUnderline hold iconic
592	intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage	1445	insecure intensityStyles iso14755 iso14755_52 jumpScroll loginShell
		1446	mapAlert meta8 mouseWheelScrollPage override_redirect pastableTabs
593	pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating	1447	pointerBlank reverseVideo scrollBar scrollBar_floating scrollBar_right
594	scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer	1448	scrollTtyKeypress scrollTtyOutput scrollWithBuffer secondaryScreen
595	secondaryScreen secondaryScroll skipBuiltinGlyphs transparent	1449	secondaryScroll skipBuiltinGlyphs skipScroll transparent tripleclickwords
596	tripleclickwords utmpInhibit visualBell	1450	urgentOnBell utmpInhibit visualBell
597		1451
598	=item $value = $term->resource ($name[, $newval])	1452	=item $value = $term->resource ($name[, $newval])
599		1453
600	Returns the current resource value associated with a given name and	1454	Returns the current resource value associated with a given name and
601	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>
…		…
610	likely change).	1464	likely change).
611		1465
612	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
613	terminal is destroyed, so changing options frequently will eat memory.	1467	terminal is destroyed, so changing options frequently will eat memory.
614		1468
615	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
616	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>
617	to see the actual list:	1471	to see the actual list:
618		1472
619	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont	1473	answerbackstring backgroundPixmap backspace_key blendtype blurradius
620	borderLess color cursorBlink cursorUnderline cutchars delete_key	1474	boldFont boldItalicFont borderLess buffered chdir color cursorBlink
621	display_name embed ext_bwidth fade font geometry hold iconName	1475	cursorUnderline cutchars delete_key depth display_name embed ext_bwidth
622	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
623	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier	1478	jumpScroll letterSpace lineSpace loginShell mapAlert meta8 modifier
624	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2	1479	mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
625	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd	1480	perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
626	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating	1481	preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
627	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput	1482	scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
628	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle	1483	scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
629	shade term_name title transparent transparent_all tripleclickwords	1484	secondaryScreen secondaryScroll shade skipBuiltinGlyphs skipScroll
		1485	term_name title transient_for transparent tripleclickwords urgentOnBell
630	utmpInhibit visualBell	1486	utmpInhibit visualBell
631		1487
632	=cut	1488	=cut
633		1489
634	sub urxvt::term::resource($$;$) {	1490	sub resource($$;$) {
635	my ($self, $name) = (shift, shift);	1491	my ($self, $name) = (shift, shift);
636	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);	1492	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
637	&urxvt::term::_resource	1493	goto &urxvt::term::_resource
638	}	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.
639		1518
640	=item $rend = $term->rstyle ([$new_rstyle])	1519	=item $rend = $term->rstyle ([$new_rstyle])
641		1520
642	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
643	the terminal application will use this style.	1522	the terminal application will use this style.
…		…
651		1530
652	=item ($row, $col) = $term->selection_beg ([$row, $col])	1531	=item ($row, $col) = $term->selection_beg ([$row, $col])
653		1532
654	=item ($row, $col) = $term->selection_end ([$row, $col])	1533	=item ($row, $col) = $term->selection_end ([$row, $col])
655		1534
656	Return the current values of the selection mark, begin or end positions,	1535	Return the current values of the selection mark, begin or end positions.
657	and optionally set them to new values.
658		1536
		1537	When arguments are given, then the selection coordinates are set to
		1538	C<$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
659	=item $success = $term->selection_grab ($eventtime)	1552	=item $success = $term->selection_grab ($eventtime[, $clipboard])
660		1553
661	Try to request the primary selection from the server (for example, as set	1554	Try to acquire ownership of the primary (clipboard if C<$clipboard> is
662	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.
663		1558
664	=item $oldtext = $term->selection ([$newtext])	1559	=item $oldtext = $term->selection ([$newtext, $clipboard])
665		1560
666	Return the current selection text and optionally replace it by C<$newtext>.	1561	Return the current selection (clipboard if C<$clipboard> is true) text
		1562	and optionally replace it by C<$newtext>.
667		1563
		1564	=item $term->selection_clear ([$clipboard])
		1565
		1566	Revoke ownership of the primary (clipboard if C<$clipboard> is true) selection.
		1567
668	#=item $term->overlay ($x, $y, $text)	1568	=item $term->overlay_simple ($x, $y, $text)
669	#	1569
670	#Create a simple multi-line overlay box. See the next method for details.	1570	Create a simple multi-line overlay box. See the next method for details.
671	#	1571
672	#=cut	1572	=cut
673	#	1573
674	#sub urxvt::term::scr_overlay {	1574	sub overlay_simple {
675	# my ($self, $x, $y, $text) = @_;	1575	my ($self, $x, $y, $text) = @_;
676	#	1576
677	# my @lines = split /\n/, $text;	1577	my @lines = split /\n/, $text;
678	#	1578
679	# my $w = 0;	1579	my $w = List::Util::max map $self->strwidth ($_), @lines;
680	# for (map $self->strwidth ($_), @lines) {	1580
681	# $w = $_ if $w < $_;
682	# }
683	#
684	# $self->scr_overlay_new ($x, $y, $w, scalar @lines);	1581	my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
685	# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;	1582	$overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
686	#}	1583
		1584	$overlay
		1585	}
687		1586
688	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])	1587	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
689		1588
690	Create a new (empty) overlay at the given position with the given	1589	Create a new (empty) overlay at the given position with the given
691	width/height. C<$rstyle> defines the initial rendition style	1590	width/height. C<$rstyle> defines the initial rendition style
…		…
702		1601
703	The methods currently supported on C<urxvt::overlay> objects are:	1602	The methods currently supported on C<urxvt::overlay> objects are:
704		1603
705	=over 4	1604	=over 4
706		1605
707	=item $overlay->set ($x, $y, $text, $rend)	1606	=item $overlay->set ($x, $y, $text[, $rend])
708		1607
709	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts	1608	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts
710	text in rxvt-unicode's special encoding and an array of rendition values	1609	text in rxvt-unicode's special encoding and an array of rendition values
711	at a specific position inside the overlay.	1610	at a specific position inside the overlay.
712		1611
		1612	If C<$rend> is missing, then the rendition will not be changed.
		1613
713	=item $overlay->hide	1614	=item $overlay->hide
714		1615
715	If visible, hide the overlay, but do not destroy it.	1616	If visible, hide the overlay, but do not destroy it.
716		1617
717	=item $overlay->show	1618	=item $overlay->show
…		…
726	C<$event> I<must> be the event causing the menu to pop up (a button event,	1627	C<$event> I<must> be the event causing the menu to pop up (a button event,
727	currently).	1628	currently).
728		1629
729	=cut	1630	=cut
730		1631
731	sub urxvt::term::popup {	1632	sub popup {
732	my ($self, $event) = @_;	1633	my ($self, $event) = @_;
733		1634
734	$self->grab ($event->{time}, 1)	1635	$self->grab ($event->{time}, 1)
735	or return;	1636	or return;
736		1637
…		…
758		1659
759	=item $string = $term->locale_decode ($octets)	1660	=item $string = $term->locale_decode ($octets)
760		1661
761	Convert the given locale-encoded octets into a perl string.	1662	Convert the given locale-encoded octets into a perl string.
762		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
763	=item $term->scr_add_lines ($string)	1681	=item $term->scr_add_lines ($string)
764		1682
765	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
766	running inside the terminal. It may not contain command sequences (escape	1684	running inside the terminal. It may not contain command sequences (escape
767	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
…		…
769		1687
770	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
771	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
772	C<on_add_lines> hook, though.	1690	C<on_add_lines> hook, though.
773		1691
		1692	=item $term->scr_change_screen ($screen)
		1693
		1694	Switch to given screen - 0 primary, 1 secondary.
		1695
774	=item $term->cmd_parse ($octets)	1696	=item $term->cmd_parse ($octets)
775		1697
776	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
777	locale-specific encoding of the terminal and can contain command sequences	1699	locale-specific encoding of the terminal and can contain command sequences
778	(escape codes) that will be interpreted.	1700	(escape codes) that will be interpreted.
779		1701
780	=item $term->tt_write ($octets)	1702	=item $term->tt_write ($octets)
781		1703
782	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
783	pass characters instead of octets, you should convert your strings first	1705	pass characters instead of octets, you should convert your strings first
784	to the locale-specific encoding using C<< $term->locale_encode >>.	1706	to the locale-specific encoding using C<< $term->locale_encode >>.
785		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
786	=item $windowid = $term->parent	1726	=item $windowid = $term->parent
787		1727
788	Return the window id of the toplevel window.	1728	Return the window id of the toplevel window.
789		1729
790	=item $windowid = $term->vt	1730	=item $windowid = $term->vt
791		1731
792	Return the window id of the terminal window.	1732	Return the window id of the terminal window.
793		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
794	=item $window_width = $term->width	1755	=item $window_width = $term->width
795		1756
796	=item $window_height = $term->height	1757	=item $window_height = $term->height
797		1758
798	=item $font_width = $term->fwidth	1759	=item $font_width = $term->fwidth
…		…
811		1772
812	=item $max_scrollback = $term->saveLines	1773	=item $max_scrollback = $term->saveLines
813		1774
814	=item $nrow_plus_saveLines = $term->total_rows	1775	=item $nrow_plus_saveLines = $term->total_rows
815		1776
816	=item $lines_in_scrollback = $term->nsaved	1777	=item $topmost_scrollback_row = $term->top_row
817		1778
818	Return various integers describing terminal characteristics.	1779	Return various integers describing terminal characteristics.
		1780
		1781	=item $x_display = $term->display_id
		1782
		1783	Return the DISPLAY used by rxvt-unicode.
		1784
		1785	=item $lc_ctype = $term->locale
		1786
		1787	Returns the LC_CTYPE category string used by this rxvt-unicode.
		1788
		1789	=item $env = $term->env
		1790
		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	}
819		1808
820	=item $modifiermask = $term->ModLevel3Mask	1809	=item $modifiermask = $term->ModLevel3Mask
821		1810
822	=item $modifiermask = $term->ModMetaMask	1811	=item $modifiermask = $term->ModMetaMask
823		1812
824	=item $modifiermask = $term->ModNumLockMask	1813	=item $modifiermask = $term->ModNumLockMask
825		1814
826	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
827	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.
828		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
829	=item $view_start = $term->view_start ([$newvalue])	1826	=item $view_start = $term->view_start ([$newvalue])
830		1827
831	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
832	C<0>, which displays the normal terminal contents. Larger values scroll	1829	C<0>, which displays the normal terminal contents. Lower values scroll
833	this many lines into the scrollback buffer.	1830	this many lines into the scrollback buffer.
834		1831
835	=item $term->want_refresh	1832	=item $term->want_refresh
836		1833
837	Requests a screen refresh. At the next opportunity, rxvt-unicode will	1834	Requests a screen refresh. At the next opportunity, rxvt-unicode will
…		…
840		1837
841	Used after changing terminal contents to display them.	1838	Used after changing terminal contents to display them.
842		1839
843	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])	1840	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
844		1841
845	Returns the text of the entire row with number C<$row_number>. Row C<0>	1842	Returns the text of the entire row with number C<$row_number>. Row C<< $term->top_row >>
846	is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost	1843	is the topmost terminal line, row C<< $term->nrow-1 >> is the bottommost
847	terminal line. The scrollback buffer starts at line C<-1> and extends to
848	line C<< -$term->nsaved >>. Nothing will be returned if a nonexistent line	1844	terminal line. Nothing will be returned if a nonexistent line
849	is requested.	1845	is requested.
850		1846
851	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
852	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
853	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
854	automatically be updated.	1850	automatically be updated.
855		1851
856	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
857	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)
858	(C<chr 65535>). Characters with combining characters and other characters	1854	characters. Characters with combining characters and other characters that
859	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
860	characters in the private use area.	1856	in the private use area.
861		1857
862	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
863	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
864	characters.	1860	characters.
865		1861
…		…
916	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.
917		1913
918	=item $offset = $line->offset_of ($row, $col)	1914	=item $offset = $line->offset_of ($row, $col)
919		1915
920	Returns the character offset of the given row|col pair within the logical	1916	Returns the character offset of the given row|col pair within the logical
921	line.	1917	line. Works for rows outside the line, too, and returns corresponding
		1918	offsets outside the string.
922		1919
923	=item ($row, $col) = $line->coord_of ($offset)	1920	=item ($row, $col) = $line->coord_of ($offset)
924		1921
925	Translates a string offset into terminal coordinates again.	1922	Translates a string offset into terminal coordinates again.
926		1923
927	=back	1924	=back
928		1925
929	=cut	1926	=cut
930		1927
931	sub urxvt::term::line {	1928	sub line {
932	my ($self, $row) = @_;	1929	my ($self, $row) = @_;
933		1930
934	my $maxrow = $self->nrow - 1;	1931	my $maxrow = $self->nrow - 1;
935		1932
936	my ($beg, $end) = ($row, $row);	1933	my ($beg, $end) = ($row, $row);
…		…
1000	$offset / $self->{ncol} + $self->{beg},	1997	$offset / $self->{ncol} + $self->{beg},
1001	$offset % $self->{ncol}	1998	$offset % $self->{ncol}
1002	)	1999	)
1003	}	2000	}
1004		2001
1005	=item ($row, $col) = $line->coord_of ($offset)
1006	=item $text = $term->special_encode $string	2002	=item $text = $term->special_encode $string
1007		2003
1008	Converts a perl string into the special encoding used by rxvt-unicode,	2004	Converts a perl string into the special encoding used by rxvt-unicode,
1009	where one character corresponds to one screen cell. See	2005	where one character corresponds to one screen cell. See
1010	C<< $term->ROW_t >> for details.	2006	C<< $term->ROW_t >> for details.
1011		2007
1012	=item $string = $term->special_decode $text	2008	=item $string = $term->special_decode $text
1013		2009
1014	Converts rxvt-unicodes text reprsentation into a perl string. See	2010	Converts rxvt-unicodes text representation into a perl string. See
1015	C<< $term->ROW_t >> for details.	2011	C<< $term->ROW_t >> for details.
1016		2012
		2013	=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
		2014
		2015	=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
		2016
		2017	Register/unregister a synchronous button grab. See the XGrabButton
		2018	manpage.
		2019
		2020	=item $success = $term->grab ($eventtime[, $sync])
		2021
		2022	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
		2023	synchronous (C<$sync> is true). Also remembers the grab timestamp.
		2024
		2025	=item $term->allow_events_async
		2026
		2027	Calls XAllowEvents with AsyncBoth for the most recent grab.
		2028
		2029	=item $term->allow_events_sync
		2030
		2031	Calls XAllowEvents with SyncBoth for the most recent grab.
		2032
		2033	=item $term->allow_events_replay
		2034
		2035	Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
		2036	recent grab.
		2037
		2038	=item $term->ungrab
		2039
		2040	Calls XUngrabPointer and XUngrabKeyboard for the most recent grab. Is called automatically on
		2041	evaluation errors, as it is better to lose the grab in the error case as
		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<$term> object only serves as
		2075	the source of the display, otherwise those functions map more-or-less
		2076	directly onto the X functions of the same name.
		2077
1017	=back	2078	=back
1018		2079
		2080	=cut
		2081
		2082	package urxvt::popup;
		2083
1019	=head2 The C<urxvt::popup> Class	2084	=head2 The C<urxvt::popup> Class
1020		2085
1021	=over 4	2086	=over 4
1022		2087
1023	=cut	2088	=cut
1024
1025	package urxvt::popup;
1026		2089
1027	sub add_item {	2090	sub add_item {
1028	my ($self, $item) = @_;	2091	my ($self, $item) = @_;
1029		2092
		2093	$item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal};
		2094	$item->{rend}{hover} = "\x1b[0;30;46m" unless exists $item->{rend}{hover};
		2095	$item->{rend}{active} = "\x1b[m" unless exists $item->{rend}{active};
		2096
		2097	$item->{render} ||= sub { $_[0]{text} };
		2098
1030	push @{ $self->{item} }, $item;	2099	push @{ $self->{item} }, $item;
1031	}	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<$sepchr>.
		2121
		2122	=cut
		2123
		2124	sub add_separator {
		2125	my ($self, $sep) = @_;
		2126
		2127	$sep ||= "=";
		2128
		2129	$self->add_item ({
		2130	rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
		2131	text => "",
		2132	render => sub { $sep x $self->{term}->ncol },
		2133	activate => sub { },
		2134	});
		2135	}
		2136
		2137	=item $popup->add_button ($text, $cb)
		2138
		2139	Adds a clickable button to the popup. C<$cb> is called whenever it is
		2140	selected.
		2141
		2142	=cut
1032		2143
1033	sub add_button {	2144	sub add_button {
1034	my ($self, $text, $cb) = @_;	2145	my ($self, $text, $cb) = @_;
1035		2146
1036	$self->add_item ({ type => "button", text => "[ $text ]", activate => $cb,	2147	$self->add_item ({ type => "button", text => $text, activate => $cb});
1037	render => sub { $_[0]{text} },
1038	});
1039	}	2148	}
		2149
		2150	=item $popup->add_toggle ($text, $initial_value, $cb)
		2151
		2152	Adds a toggle/checkbox item to the popup. The callback gets called
		2153	whenever it gets toggled, with a boolean indicating its new value as its
		2154	first argument.
		2155
		2156	=cut
1040		2157
1041	sub add_toggle {	2158	sub add_toggle {
1042	my ($self, $text, $cb, $value) = @_;	2159	my ($self, $text, $value, $cb) = @_;
1043		2160
1044	my $item; $item = {	2161	my $item; $item = {
1045	type => "button",	2162	type => "button",
1046	text => " $text",	2163	text => " $text",
1047	value => $value,	2164	value => $value,
1048	render => sub { ($item->{value} ? "✔" : " ") . $text },	2165	render => sub { ($_[0]{value} ? "* " : " ") . $text },
1049	activate => sub { $cb->($item->{value} = !$item->{value}); },	2166	activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
1050	};	2167	};
1051		2168
1052	$self->add_item ($item);	2169	$self->add_item ($item);
1053	}	2170	}
		2171
		2172	=item $popup->show
		2173
		2174	Displays the popup (which is initially hidden).
		2175
		2176	=cut
1054		2177
1055	sub show {	2178	sub show {
1056	my ($self) = @_;	2179	my ($self) = @_;
1057		2180
1058	local $urxvt::popup::self = $self;	2181	local $urxvt::popup::self = $self;
1059		2182
1060	urxvt->new ("--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0,	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};
		2186	$env->{LC_CTYPE} = $self->{term}->locale;
		2187
		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",
1061	"--transient-for" => $self->{term}->parent,	2193	"--transient-for" => $self->{term}->parent,
		2194	"-display" => $self->{term}->display_id,
1062	"-pe" => "urxvt-popup")	2195	"-pe" => "urxvt-popup",
1063	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	$term->destroy;
		2201	die "unable to initialise popup window\n";
		2202	}
1064	}	2203	}
1065		2204
1066	sub DESTROY {	2205	sub DESTROY {
1067	my ($self) = @_;	2206	my ($self) = @_;
1068		2207
		2208	delete $self->{term}{_destroy}{$self};
1069	$self->{term}->ungrab;	2209	$self->{term}->ungrab;
1070	}	2210	}
		2211
		2212	=back
		2213
		2214	=cut
		2215
		2216	package urxvt::watcher;
1071		2217
1072	=head2 The C<urxvt::timer> Class	2218	=head2 The C<urxvt::timer> Class
1073		2219
1074	This class implements timer watchers/events. Time is represented as a	2220	This class implements timer watchers/events. Time is represented as a
1075	fractional number of seconds since the epoch. Example:	2221	fractional number of seconds since the epoch. Example:
…		…
1079	->new	2225	->new
1080	->interval (1)	2226	->interval (1)
1081	->cb (sub {	2227	->cb (sub {
1082	$term->{overlay}->set (0, 0,	2228	$term->{overlay}->set (0, 0,
1083	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);	2229	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
1084	});	2230	});
1085		2231
1086	=over 4	2232	=over 4
1087		2233
1088	=item $timer = new urxvt::timer	2234	=item $timer = new urxvt::timer
1089		2235
…		…
1092		2238
1093	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })	2239	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })
1094		2240
1095	Set the callback to be called when the timer triggers.	2241	Set the callback to be called when the timer triggers.
1096		2242
1097	=item $tstamp = $timer->at
1098
1099	Return the time this watcher will fire next.
1100
1101	=item $timer = $timer->set ($tstamp)	2243	=item $timer = $timer->set ($tstamp[, $interval])
1102		2244
1103	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).
1104		2247
1105	=item $timer = $timer->interval ($interval)	2248	=item $timer = $timer->interval ($interval)
1106		2249
1107	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
1108	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
1109	is automatically rescheduled at the given intervals.	2252	is automatically rescheduled at the given intervals.
1110		2253
1111	=item $timer = $timer->start	2254	=item $timer = $timer->start
1112		2255
1113	Start the timer.	2256	Start the timer.
1114		2257
1115	=item $timer = $timer->start ($tstamp)	2258	=item $timer = $timer->start ($tstamp[, $interval])
1116		2259
1117	Set the event trigger time to C<$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>.
1118		2266
1119	=item $timer = $timer->stop	2267	=item $timer = $timer->stop
1120		2268
1121	Stop the timer.	2269	Stop the timer.
1122		2270
…		…
1128		2276
1129	$term->{socket} = ...	2277	$term->{socket} = ...
1130	$term->{iow} = urxvt::iow	2278	$term->{iow} = urxvt::iow
1131	->new	2279	->new
1132	->fd (fileno $term->{socket})	2280	->fd (fileno $term->{socket})
1133	->events (1) # wait for read data	2281	->events (urxvt::EV_READ)
1134	->start	2282	->start
1135	->cb (sub {	2283	->cb (sub {
1136	my ($iow, $revents) = @_;	2284	my ($iow, $revents) = @_;
1137	# $revents must be 1 here, no need to check	2285	# $revents must be 1 here, no need to check
1138	sysread $term->{socket}, my $buf, 8192	2286	sysread $term->{socket}, my $buf, 8192
…		…
1151	Set the callback to be called when io events are triggered. C<$reventmask>	2299	Set the callback to be called when io events are triggered. C<$reventmask>
1152	is a bitset as described in the C<events> method.	2300	is a bitset as described in the C<events> method.
1153		2301
1154	=item $iow = $iow->fd ($fd)	2302	=item $iow = $iow->fd ($fd)
1155		2303
1156	Set the filedescriptor (not handle) to watch.	2304	Set the file descriptor (not handle) to watch.
1157		2305
1158	=item $iow = $iow->events ($eventmask)	2306	=item $iow = $iow->events ($eventmask)
1159		2307
1160	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
1161	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>.
1162		2311
1163	=item $iow = $iow->start	2312	=item $iow = $iow->start
1164		2313
1165	Start watching for requested events on the given handle.	2314	Start watching for requested events on the given handle.
1166		2315
1167	=item $iow = $iow->stop	2316	=item $iow = $iow->stop
1168		2317
1169	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.
1170		2380
1171	=back	2381	=back
1172		2382
1173	=head1 ENVIRONMENT	2383	=head1 ENVIRONMENT
1174		2384
…		…
1177	This variable controls the verbosity level of the perl extension. Higher	2387	This variable controls the verbosity level of the perl extension. Higher
1178	numbers indicate more verbose output.	2388	numbers indicate more verbose output.
1179		2389
1180	=over 4	2390	=over 4
1181		2391
1182	=item =0 - only fatal messages	2392	=item == 0 - fatal messages
1183		2393
1184	=item =3 - script loading and management	2394	=item >= 3 - script loading and management
1185		2395
1186	=item =10 - all events received	2396	=item >=10 - all called hooks
		2397
		2398	=item >=11 - hook return values
1187		2399
1188	=back	2400	=back
1189		2401
1190	=head1 AUTHOR	2402	=head1 AUTHOR
1191		2403
1192	Marc Lehmann <pcg@goof.com>	2404	Marc Lehmann <schmorp@schmorp.de>
1193	http://software.schmorp.de/pkg/rxvt-unicode	2405	http://software.schmorp.de/pkg/rxvt-unicode
1194		2406
1195	=cut	2407	=cut
1196		2408
1197	1	2409	1
		2410
		2411	# vim: sw=3:

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