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Revision 1.45 by root, Sat Jan 7 20:23:52 2006 UTC vs.
Revision 1.202 by sf-exg, Wed Nov 30 10:29:51 2011 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_resize_all_windows $term, $new_width, $new_height
		678
		679	Called just after the new window size has been calculated, but before
		680	windows are actually being resized or hints are being set. If this hook
		681	returns TRUE, setting of the window hints is being skipped.
		682
		683	=item on_x_event $term, $event
		684
		685	Called on every X event received on the vt window (and possibly other
		686	windows). Should only be used as a last resort. Most event structure
		687	members are not passed.
		688
		689	=item on_root_event $term, $event
		690
		691	Like C<on_x_event>, but is called for events on the root window.
255		692
256	=item on_focus_in $term	693	=item on_focus_in $term
257		694
258	Called whenever the window gets the keyboard focus, before rxvt-unicode	695	Called whenever the window gets the keyboard focus, before rxvt-unicode
259	does focus in processing.	696	does focus in processing.
260		697
261	=item on_focus_out $term	698	=item on_focus_out $term
262		699
263	Called wheneever the window loses keyboard focus, before rxvt-unicode does	700	Called whenever the window loses keyboard focus, before rxvt-unicode does
264	focus out processing.	701	focus out processing.
265		702
		703	=item on_configure_notify $term, $event
		704
		705	=item on_property_notify $term, $event
		706
266	=item on_key_press $term, $event, $octets	707	=item on_key_press $term, $event, $keysym, $octets
267		708
268	=item on_key_release $term, $event	709	=item on_key_release $term, $event, $keysym
269		710
270	=item on_button_press $term, $event	711	=item on_button_press $term, $event
271		712
272	=item on_button_release $term, $event	713	=item on_button_release $term, $event
273		714
…		…
275		716
276	=item on_map_notify $term, $event	717	=item on_map_notify $term, $event
277		718
278	=item on_unmap_notify $term, $event	719	=item on_unmap_notify $term, $event
279		720
280	Called whenever the corresponding X event is received for the terminal If	721	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.	722	the hook returns true, then the event will be ignored by rxvt-unicode.
282		723
283	The event is a hash with most values as named by Xlib (see the XEvent	724	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	725	manpage), with the additional members C<row> and C<col>, which are the
285	and column under the mouse cursor.	726	(real, not screen-based) row and column under the mouse cursor.
286		727
287	C<on_key_press> additionally receives the string rxvt-unicode would	728	C<on_key_press> additionally receives the string rxvt-unicode would
288	output, if any, in locale-specific encoding.	729	output, if any, in locale-specific encoding.
289		730
290	subwindow.	731	subwindow.
291		732
		733	=item on_client_message $term, $event
		734
		735	=item on_wm_protocols $term, $event
		736
		737	=item on_wm_delete_window $term, $event
		738
		739	Called when various types of ClientMessage events are received (all with
		740	format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
		741
		742	=item on_bell $term
		743
		744	Called on receipt of a bell character.
		745
292	=back	746	=back
293		747
		748	=cut
		749
		750	package urxvt;
		751
		752	use utf8;
		753	use strict;
		754	use Carp ();
		755	use Scalar::Util ();
		756	use List::Util ();
		757
		758	our $VERSION = 1;
		759	our $TERM;
		760	our @TERM_INIT;
		761	our @TERM_EXT;
		762	our @HOOKNAME;
		763	our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
		764	our %OPTION;
		765
		766	our $LIBDIR;
		767	our $RESNAME;
		768	our $RESCLASS;
		769	our $RXVTNAME;
		770
		771	our $NOCHAR = chr 0xffff;
		772
294	=head2 Variables in the C<urxvt> Package	773	=head2 Variables in the C<urxvt> Package
295		774
296	=over 4	775	=over 4
		776
		777	=item $urxvt::LIBDIR
		778
		779	The rxvt-unicode library directory, where, among other things, the perl
		780	modules and scripts are stored.
		781
		782	=item $urxvt::RESCLASS, $urxvt::RESCLASS
		783
		784	The resource class and name rxvt-unicode uses to look up X resources.
		785
		786	=item $urxvt::RXVTNAME
		787
		788	The basename of the installed binaries, usually C<urxvt>.
297		789
298	=item $urxvt::TERM	790	=item $urxvt::TERM
299		791
300	The current terminal. This variable stores the current C<urxvt::term>	792	The current terminal. This variable stores the current C<urxvt::term>
301	object, whenever a callback/hook is executing.	793	object, whenever a callback/hook is executing.
302		794
		795	=item @urxvt::TERM_INIT
		796
		797	All code references in this array will be called as methods of the next newly
		798	created C<urxvt::term> object (during the C<on_init> phase). The array
		799	gets cleared before the code references that were in it are being executed,
		800	so references can push themselves onto it again if they so desire.
		801
		802	This complements to the perl-eval command line option, but gets executed
		803	first.
		804
		805	=item @urxvt::TERM_EXT
		806
		807	Works similar to C<@TERM_INIT>, but contains perl package/class names, which
		808	get registered as normal extensions after calling the hooks in C<@TERM_INIT>
		809	but before other extensions. Gets cleared just like C<@TERM_INIT>.
		810
303	=back	811	=back
304		812
305	=head2 Functions in the C<urxvt> Package	813	=head2 Functions in the C<urxvt> Package
306		814
307	=over 4	815	=over 4
308		816
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	817	=item urxvt::fatal $errormessage
318		818
319	Fatally aborts execution with the given error message. Avoid at all	819	Fatally aborts execution with the given error message (which should
320	costs! The only time this is acceptable is when the terminal process	820	include a trailing newline). Avoid at all costs! The only time this
321	starts up.	821	is acceptable (and useful) is in the init hook, where it prevents the
		822	terminal from starting up.
322		823
323	=item urxvt::warn $string	824	=item urxvt::warn $string
324		825
325	Calls C<rxvt_warn> with the given string which should not include a	826	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	827	newline. The module also overwrites the C<warn> builtin with a function
327	that calls this function.	828	that calls this function.
328		829
329	Using this function has the advantage that its output ends up in the	830	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.	831	correct place, e.g. on stderr of the connecting urxvtc client.
331		832
		833	Messages have a size limit of 1023 bytes currently.
		834
		835	=item @terms = urxvt::termlist
		836
		837	Returns all urxvt::term objects that exist in this process, regardless of
		838	whether they are started, being destroyed etc., so be careful. Only term
		839	objects that have perl extensions attached will be returned (because there
		840	is no urxvt::term object associated with others).
		841
332	=item $time = urxvt::NOW	842	=item $time = urxvt::NOW
333		843
334	Returns the "current time" (as per the event loop).	844	Returns the "current time" (as per the event loop).
		845
		846	=item urxvt::CurrentTime
		847
		848	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
		849	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
		850	Button4Mask, Button5Mask, AnyModifier
		851
		852	=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
		853	ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
		854	PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
		855	Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
		856	KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
		857	ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
		858	FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
		859
		860	=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
		861	EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
		862	GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
		863	UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
		864	ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
		865	CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
		866	SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
		867
		868	Various constants for use in X calls and event processing.
335		869
336	=back	870	=back
337		871
338	=head2 RENDITION	872	=head2 RENDITION
339		873
…		…
354		888
355	=item $rend = urxvt::OVERLAY_RSTYLE	889	=item $rend = urxvt::OVERLAY_RSTYLE
356		890
357	Return the rendition mask used for overlays by default.	891	Return the rendition mask used for overlays by default.
358		892
359	=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline	893	=item $rendbit = urxvt::RS_Bold, urxvt::RS_Italic, urxvt::RS_Blink,
		894	urxvt::RS_RVid, urxvt::RS_Uline
360		895
361	Return the bit that enabled bold, italic, blink, reverse-video and	896	Return the bit that enabled bold, italic, blink, reverse-video and
362	underline, respectively. To enable such a style, just logically OR it into	897	underline, respectively. To enable such a style, just logically OR it into
363	the bitset.	898	the bitset.
364		899
…		…
366		901
367	=item $background = urxvt::GET_BASEBG $rend	902	=item $background = urxvt::GET_BASEBG $rend
368		903
369	Return the foreground/background colour index, respectively.	904	Return the foreground/background colour index, respectively.
370		905
371	=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)	906	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
372		907
373	=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)	908	=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
		909
		910	=item $rend = urxvt::SET_COLOR $rend, $new_fg, $new_bg
374		911
375	Replace the foreground/background colour in the rendition mask with the	912	Replace the foreground/background colour in the rendition mask with the
376	specified one.	913	specified one.
377		914
378	=item $value = urxvt::GET_CUSTOM ($rend)	915	=item $value = urxvt::GET_CUSTOM $rend
379		916
380	Return the "custom" value: Every rendition has 5 bits for use by	917	Return the "custom" value: Every rendition has 5 bits for use by
381	extensions. They can be set and changed as you like and are initially	918	extensions. They can be set and changed as you like and are initially
382	zero.	919	zero.
383		920
384	=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)	921	=item $rend = urxvt::SET_CUSTOM $rend, $new_value
385		922
386	Change the custom value.	923	Change the custom value.
387		924
388	=back	925	=back
389		926
390	=cut	927	=cut
391		928
392	package urxvt;
393
394	use strict;
395	use Scalar::Util ();
396
397	our $TERM;
398	our @HOOKNAME;
399	our $LIBDIR;
400
401	BEGIN {	929	BEGIN {
402	urxvt->bootstrap;
403
404	# overwrite perl's warn	930	# overwrite perl's warn
405	*CORE::GLOBAL::warn = sub {	931	*CORE::GLOBAL::warn = sub {
406	my $msg = join "", @_;	932	my $msg = join "", @_;
407	$msg .= "\n"	933	$msg .= "\n"
408	unless $msg =~ /\n$/;	934	unless $msg =~ /\n$/;
409	urxvt::warn ($msg);	935	urxvt::warn ($msg);
410	};	936	};
411	}	937	}
412		938
413	my @hook_count;	939	no warnings 'utf8';
		940
414	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};	941	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
415		942
416	sub verbose {	943	sub verbose {
417	my ($level, $msg) = @_;	944	my ($level, $msg) = @_;
418	warn "$msg\n" if $level <= $verbosity;	945	warn "$msg\n" if $level <= $verbosity;
419	}	946	}
420		947
421	# find on_xxx subs in the package and register them
422	# as hooks
423	sub register_package($) {
424	my ($pkg) = @_;
425
426	for my $htype (0.. $#HOOKNAME) {
427	my $name = $HOOKNAME[$htype];
428
429	my $ref = $pkg->can ("on_" . lc $name)
430	or next;
431
432	$TERM->{_hook}[$htype]{$pkg} = $ref;
433	$hook_count[$htype]++
434	or set_should_invoke $htype, 1;
435	}
436	}
437
438	my $extension_pkg = "extension0000";
439	my %extension_pkg;	948	my %extension_pkg;
440		949
441	# load a single script into its own package, once only	950	# load a single script into its own package, once only
442	sub extension_package($) {	951	sub extension_package($) {
443	my ($path) = @_;	952	my ($path) = @_;
444		953
445	$extension_pkg{$path} ||= do {	954	$extension_pkg{$path} ||= do {
446	my $pkg = "urxvt::" . ($extension_pkg++);	955	$path =~ /([^\/\\]+)$/;
		956	my $pkg = $1;
		957	$pkg =~ s/[^[:word:]]/_/g;
		958	$pkg = "urxvt::ext::$pkg";
447		959
448	verbose 3, "loading extension '$path' into package '$pkg'";	960	verbose 3, "loading extension '$path' into package '$pkg'";
449		961
450	open my $fh, "<:raw", $path	962	open my $fh, "<:raw", $path
451	or die "$path: $!";	963	or die "$path: $!";
452		964
453	my $source = "package $pkg; use strict; use utf8;\n"	965	my $source =
454	. "use base urxvt::term::proxy::;\n"	966	"package $pkg; use strict; use utf8; no warnings 'utf8';\n"
455	. "#line 1 \"$path\"\n{\n"	967	. "#line 1 \"$path\"\n{\n"
456	. (do { local $/; <$fh> })	968	. (do { local $/; <$fh> })
457	. "\n};\n1";	969	. "\n};\n1";
458		970
		971	eval $source
459	eval $source or die "$path: $@";	972	or die "$path: $@";
460		973
461	$pkg	974	$pkg
462	}	975	}
463	}	976	}
464		977
…		…
468	sub invoke {	981	sub invoke {
469	local $TERM = shift;	982	local $TERM = shift;
470	my $htype = shift;	983	my $htype = shift;
471		984
472	if ($htype == 0) { # INIT	985	if ($htype == 0) { # INIT
473	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");	986	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$ENV{HOME}/.urxvt/ext", "$LIBDIR/perl");
474		987
		988	my %ext_arg;
		989
		990	{
		991	my @init = @TERM_INIT;
		992	@TERM_INIT = ();
		993	$_->($TERM) for @init;
		994	my @pkg = @TERM_EXT;
		995	@TERM_EXT = ();
		996	$TERM->register_package ($_) for @pkg;
		997	}
		998
475	for my $ext (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {	999	for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
		1000	if ($_ eq "default") {
		1001	$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
		1002	} elsif (/^-(.*)$/) {
		1003	delete $ext_arg{$1};
		1004	} elsif (/^([^<]+)<(.*)>$/) {
		1005	push @{ $ext_arg{$1} }, $2;
		1006	} else {
		1007	$ext_arg{$_} ||= [];
		1008	}
		1009	}
		1010
		1011	for my $ext (sort keys %ext_arg) {
476	my @files = grep -f $_, map "$_/$ext", @dirs;	1012	my @files = grep -f $_, map "$_/$ext", @dirs;
477		1013
478	if (@files) {	1014	if (@files) {
479	register_package extension_package $files[0];	1015	$TERM->register_package (extension_package $files[0], $ext_arg{$ext});
480	} else {	1016	} else {
481	warn "perl extension '$ext' not found in perl library search path\n";	1017	warn "perl extension '$ext' not found in perl library search path\n";
482	}	1018	}
483	}	1019	}
		1020
		1021	eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval");
		1022	warn $@ if $@;
484	}	1023	}
485		1024
486	$retval = undef;	1025	$retval = undef;
487		1026
488	if (my $cb = $TERM->{_hook}[$htype]) {	1027	if (my $cb = $TERM->{_hook}[$htype]) {
489	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"	1028	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
490	if $verbosity >= 10;	1029	if $verbosity >= 10;
491		1030
492	keys %$cb;	1031	for my $pkg (keys %$cb) {
		1032	my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg}, @_) };
		1033	$retval ||= $retval_;
493		1034
494	while (my ($pkg, $cb) = each %$cb) {	1035	if ($@) {
495	eval {	1036	$TERM->ungrab; # better to lose the grab than the session
496	$retval = $cb->(	1037	warn $@;
497	$TERM->{_pkg}{$pkg} ||= do {
498	my $proxy = bless { }, $pkg;
499	Scalar::Util::weaken ($proxy->{term} = $TERM);
500	$proxy
501	},
502	@_,
503	) and last;
504	};
505	warn $@ if $@;#d#
506	}
507	}
508
509	if ($htype == 1) { # DESTROY
510	# remove hooks if unused
511	if (my $hook = $TERM->{_hook}) {
512	for my $htype (0..$#$hook) {
513	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
514	or set_should_invoke $htype, 0;
515	}	1038	}
516	}	1039	}
517		1040
		1041	verbose 11, "$HOOKNAME[$htype] returning <$retval>"
		1042	if $verbosity >= 11;
		1043	}
		1044
		1045	if ($htype == 1) { # DESTROY
518	# clear package objects	1046	# clear package objects
519	%$_ = () for values %{ $TERM->{_pkg} };	1047	%$_ = () for values %{ $TERM->{_pkg} };
520		1048
521	# clear package	1049	# clear package
522	%$TERM = ();	1050	%$TERM = ();
523	}	1051	}
524		1052
525	$retval	1053	$retval
526	}	1054	}
527		1055
528	sub urxvt::term::proxy::AUTOLOAD {	1056	sub SET_COLOR($$$) {
529	$urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/	1057	SET_BGCOLOR (SET_FGCOLOR ($_[0], $_[1]), $_[2])
		1058	}
		1059
		1060	sub rend2mask {
		1061	no strict 'refs';
		1062	my ($str, $mask) = (@_, 0);
		1063	my %color = ( fg => undef, bg => undef );
		1064	my @failed;
		1065	for my $spec ( split /\s+/, $str ) {
		1066	if ( $spec =~ /^([fb]g)[_:-]?(\d+)/i ) {
		1067	$color{lc($1)} = $2;
		1068	} else {
		1069	my $neg = $spec =~ s/^[-^]//;
		1070	unless ( exists &{"RS_$spec"} ) {
		1071	push @failed, $spec;
		1072	next;
		1073	}
		1074	my $cur = &{"RS_$spec"};
		1075	if ( $neg ) {
		1076	$mask &= ~$cur;
		1077	} else {
		1078	$mask |= $cur;
		1079	}
		1080	}
		1081	}
		1082	($mask, @color{qw(fg bg)}, \@failed)
		1083	}
		1084
		1085	# urxvt::term::extension
		1086
		1087	package urxvt::term::extension;
		1088
		1089	sub enable {
		1090	my ($self, %hook) = @_;
		1091	my $pkg = $self->{_pkg};
		1092
		1093	while (my ($name, $cb) = each %hook) {
		1094	my $htype = $HOOKTYPE{uc $name};
		1095	defined $htype
		1096	or Carp::croak "unsupported hook type '$name'";
		1097
		1098	$self->set_should_invoke ($htype, +1)
		1099	unless exists $self->{term}{_hook}[$htype]{$pkg};
		1100
		1101	$self->{term}{_hook}[$htype]{$pkg} = $cb;
		1102	}
		1103	}
		1104
		1105	sub disable {
		1106	my ($self, @hook) = @_;
		1107	my $pkg = $self->{_pkg};
		1108
		1109	for my $name (@hook) {
		1110	my $htype = $HOOKTYPE{uc $name};
		1111	defined $htype
		1112	or Carp::croak "unsupported hook type '$name'";
		1113
		1114	$self->set_should_invoke ($htype, -1)
		1115	if delete $self->{term}{_hook}[$htype]{$pkg};
		1116	}
		1117	}
		1118
		1119	our $AUTOLOAD;
		1120
		1121	sub AUTOLOAD {
		1122	$AUTOLOAD =~ /:([^:]+)$/
530	or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";	1123	or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
531		1124
532	eval qq{	1125	eval qq{
533	sub $urxvt::term::proxy::AUTOLOAD {	1126	sub $AUTOLOAD {
534	my \$proxy = shift;	1127	my \$proxy = shift;
535	\$proxy->{term}->$1 (\@_)	1128	\$proxy->{term}->$1 (\@_)
536	}	1129	}
537	1	1130	1
538	} or die "FATAL: unable to compile method forwarder: $@";	1131	} or die "FATAL: unable to compile method forwarder: $@";
539		1132
540	goto &$urxvt::term::proxy::AUTOLOAD;	1133	goto &$AUTOLOAD;
541	}	1134	}
		1135
		1136	sub DESTROY {
		1137	# nop
		1138	}
		1139
		1140	# urxvt::destroy_hook
542		1141
543	sub urxvt::destroy_hook::DESTROY {	1142	sub urxvt::destroy_hook::DESTROY {
544	${$_[0]}->();	1143	${$_[0]}->();
545	}	1144	}
546		1145
547	sub urxvt::destroy_hook(&) {	1146	sub urxvt::destroy_hook(&) {
548	bless \shift, urxvt::destroy_hook::	1147	bless \shift, urxvt::destroy_hook::
549	}	1148	}
550		1149
		1150	package urxvt::anyevent;
		1151
		1152	=head2 The C<urxvt::anyevent> Class
		1153
		1154	The sole purpose of this class is to deliver an interface to the
		1155	C<AnyEvent> module - any module using it will work inside urxvt without
		1156	further programming. The only exception is that you cannot wait on
		1157	condition variables, but non-blocking condvar use is ok. What this means
		1158	is that you cannot use blocking APIs, but the non-blocking variant should
		1159	work.
		1160
		1161	=cut
		1162
		1163	our $VERSION = '5.23';
		1164
		1165	$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
		1166	push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
		1167
		1168	sub timer {
		1169	my ($class, %arg) = @_;
		1170
		1171	my $cb = $arg{cb};
		1172
		1173	urxvt::timer
		1174	->new
		1175	->after ($arg{after}, $arg{interval})
		1176	->cb ($arg{interval} ? $cb : sub {
		1177	$_[0]->stop; # need to cancel manually
		1178	$cb->();
		1179	})
		1180	}
		1181
		1182	sub io {
		1183	my ($class, %arg) = @_;
		1184
		1185	my $cb = $arg{cb};
		1186	my $fd = fileno $arg{fh};
		1187	defined $fd or $fd = $arg{fh};
		1188
		1189	bless [$arg{fh}, urxvt::iow
		1190	->new
		1191	->fd ($fd)
		1192	->events (($arg{poll} =~ /r/ ? 1 : 0)
		1193	| ($arg{poll} =~ /w/ ? 2 : 0))
		1194	->start
		1195	->cb ($cb)
		1196	], urxvt::anyevent::
		1197	}
		1198
		1199	sub idle {
		1200	my ($class, %arg) = @_;
		1201
		1202	my $cb = $arg{cb};
		1203
		1204	urxvt::iw
		1205	->new
		1206	->start
		1207	->cb ($cb)
		1208	}
		1209
		1210	sub child {
		1211	my ($class, %arg) = @_;
		1212
		1213	my $cb = $arg{cb};
		1214
		1215	urxvt::pw
		1216	->new
		1217	->start ($arg{pid})
		1218	->cb (sub {
		1219	$_[0]->stop; # need to cancel manually
		1220	$cb->($_[0]->rpid, $_[0]->rstatus);
		1221	})
		1222	}
		1223
		1224	sub DESTROY {
		1225	$_[0][1]->stop;
		1226	}
		1227
		1228	# only needed for AnyEvent < 6 compatibility
		1229	sub one_event {
		1230	Carp::croak "AnyEvent->one_event blocking wait unsupported in urxvt, use a non-blocking API";
		1231	}
		1232
		1233	package urxvt::term;
		1234
551	=head2 The C<urxvt::term> Class	1235	=head2 The C<urxvt::term> Class
552		1236
553	=over 4	1237	=over 4
554		1238
		1239	=cut
		1240
		1241	# find on_xxx subs in the package and register them
		1242	# as hooks
		1243	sub register_package {
		1244	my ($self, $pkg, $argv) = @_;
		1245
		1246	no strict 'refs';
		1247
		1248	urxvt::verbose 6, "register package $pkg to $self";
		1249
		1250	@{"$pkg\::ISA"} = urxvt::term::extension::;
		1251
		1252	my $proxy = bless {
		1253	_pkg => $pkg,
		1254	argv => $argv,
		1255	}, $pkg;
		1256	Scalar::Util::weaken ($proxy->{term} = $self);
		1257
		1258	$self->{_pkg}{$pkg} = $proxy;
		1259
		1260	for my $name (@HOOKNAME) {
		1261	if (my $ref = $pkg->can ("on_" . lc $name)) {
		1262	$proxy->enable ($name => $ref);
		1263	}
		1264	}
		1265	}
		1266
		1267	=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
		1268
		1269	Creates a new terminal, very similar as if you had started it with system
		1270	C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
		1271	hash which defines the environment of the new terminal.
		1272
		1273	Croaks (and probably outputs an error message) if the new instance
		1274	couldn't be created. Returns C<undef> if the new instance didn't
		1275	initialise perl, and the terminal object otherwise. The C<init> and
		1276	C<start> hooks will be called before this call returns, and are free to
		1277	refer to global data (which is race free).
		1278
		1279	=cut
		1280
		1281	sub new {
		1282	my ($class, $env, @args) = @_;
		1283
		1284	$env or Carp::croak "environment hash missing in call to urxvt::term->new";
		1285	@args or Carp::croak "name argument missing in call to urxvt::term->new";
		1286
		1287	_new ([ map "$_=$env->{$_}", keys %$env ], \@args);
		1288	}
		1289
555	=item $term->destroy	1290	=item $term->destroy
556		1291
557	Destroy the terminal object (close the window, free resources etc.).	1292	Destroy the terminal object (close the window, free resources
		1293	etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
		1294	watchers (timers, io watchers) are still active.
		1295
		1296	=item $term->exec_async ($cmd[, @args])
		1297
		1298	Works like the combination of the C<fork>/C<exec> builtins, which executes
		1299	("starts") programs in the background. This function takes care of setting
		1300	the user environment before exec'ing the command (e.g. C<PATH>) and should
		1301	be preferred over explicit calls to C<exec> or C<system>.
		1302
		1303	Returns the pid of the subprocess or C<undef> on error.
		1304
		1305	=cut
		1306
		1307	sub exec_async {
		1308	my $self = shift;
		1309
		1310	my $pid = fork;
		1311
		1312	return $pid
		1313	if !defined $pid or $pid;
		1314
		1315	%ENV = %{ $self->env };
		1316
		1317	exec @_;
		1318	urxvt::_exit 255;
		1319	}
		1320
		1321	=item $isset = $term->option ($optval[, $set])
		1322
		1323	Returns true if the option specified by C<$optval> is enabled, and
		1324	optionally change it. All option values are stored by name in the hash
		1325	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
		1326
		1327	Here is a likely non-exhaustive list of option names, please see the
		1328	source file F</src/optinc.h> to see the actual list:
		1329
		1330	borderLess buffered console cursorBlink cursorUnderline hold iconic
		1331	insecure intensityStyles iso14755 iso14755_52 jumpScroll loginShell
		1332	mapAlert meta8 mouseWheelScrollPage override_redirect pastableTabs
		1333	pointerBlank reverseVideo scrollBar scrollBar_floating scrollBar_right
		1334	scrollTtyKeypress scrollTtyOutput scrollWithBuffer secondaryScreen
		1335	secondaryScroll skipBuiltinGlyphs skipScroll transparent tripleclickwords
		1336	urgentOnBell utmpInhibit visualBell
558		1337
559	=item $value = $term->resource ($name[, $newval])	1338	=item $value = $term->resource ($name[, $newval])
560		1339
561	Returns the current resource value associated with a given name and	1340	Returns the current resource value associated with a given name and
562	optionally sets a new value. Setting values is most useful in the C<init>	1341	optionally sets a new value. Setting values is most useful in the C<init>
…		…
571	likely change).	1350	likely change).
572		1351
573	Please note that resource strings will currently only be freed when the	1352	Please note that resource strings will currently only be freed when the
574	terminal is destroyed, so changing options frequently will eat memory.	1353	terminal is destroyed, so changing options frequently will eat memory.
575		1354
576	Here is a a likely non-exhaustive list of resource names, not all of which	1355	Here is a likely non-exhaustive list of resource names, not all of which
577	are supported in every build, please see the source to see the actual	1356	are supported in every build, please see the source file F</src/rsinc.h>
578	list:	1357	to see the actual list:
579		1358
580	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont	1359	answerbackstring backgroundPixmap backspace_key blendtype blurradius
581	borderLess color cursorBlink cursorUnderline cutchars delete_key	1360	boldFont boldItalicFont borderLess buffered chdir color cursorBlink
582	display_name embed ext_bwidth fade font geometry hold iconName	1361	cursorUnderline cutchars delete_key depth display_name embed ext_bwidth
583	imFont imLocale inputMethod insecure int_bwidth intensityStyles	1362	fade font geometry hold iconName iconfile imFont imLocale inputMethod
		1363	insecure int_bwidth intensityStyles iso14755 iso14755_52 italicFont
584	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier	1364	jumpScroll letterSpace lineSpace loginShell mapAlert meta8 modifier
585	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2	1365	mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
586	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd	1366	perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
587	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating	1367	preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
588	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput	1368	scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
589	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle	1369	scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
590	shade term_name title transparent transparent_all tripleclickwords	1370	secondaryScreen secondaryScroll shade skipBuiltinGlyphs skipScroll
		1371	term_name title transient_for transparent tripleclickwords urgentOnBell
591	utmpInhibit visualBell	1372	utmpInhibit visualBell
592		1373
593	=cut	1374	=cut
594		1375
595	sub urxvt::term::resource($$;$) {	1376	sub resource($$;$) {
596	my ($self, $name) = (shift, shift);	1377	my ($self, $name) = (shift, shift);
597	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);	1378	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
598	&urxvt::term::_resource	1379	goto &urxvt::term::_resource
599	}	1380	}
		1381
		1382	=item $value = $term->x_resource ($pattern)
		1383
		1384	Returns the X-Resource for the given pattern, excluding the program or
		1385	class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
		1386	same value as used by this instance of rxvt-unicode. Returns C<undef> if no
		1387	resource with that pattern exists.
		1388
		1389	This method should only be called during the C<on_start> hook, as there is
		1390	only one resource database per display, and later invocations might return
		1391	the wrong resources.
		1392
		1393	=item $success = $term->parse_keysym ($key, $octets)
		1394
		1395	Adds a key binding exactly as specified via a resource. See the
		1396	C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
600		1397
601	=item $rend = $term->rstyle ([$new_rstyle])	1398	=item $rend = $term->rstyle ([$new_rstyle])
602		1399
603	Return and optionally change the current rendition. Text that is output by	1400	Return and optionally change the current rendition. Text that is output by
604	the terminal application will use this style.	1401	the terminal application will use this style.
…		…
612		1409
613	=item ($row, $col) = $term->selection_beg ([$row, $col])	1410	=item ($row, $col) = $term->selection_beg ([$row, $col])
614		1411
615	=item ($row, $col) = $term->selection_end ([$row, $col])	1412	=item ($row, $col) = $term->selection_end ([$row, $col])
616		1413
617	Return the current values of the selection mark, begin or end positions,	1414	Return the current values of the selection mark, begin or end positions.
618	and optionally set them to new values.
619		1415
		1416	When arguments are given, then the selection coordinates are set to
		1417	C<$row> and C<$col>, and the selection screen is set to the current
		1418	screen.
		1419
		1420	=item $screen = $term->selection_screen ([$screen])
		1421
		1422	Returns the current selection screen, and then optionally sets it.
		1423
		1424	=item $term->selection_make ($eventtime[, $rectangular])
		1425
		1426	Tries to make a selection as set by C<selection_beg> and
		1427	C<selection_end>. If C<$rectangular> is true (default: false), a
		1428	rectangular selection will be made. This is the preferred function to make
		1429	a selection.
		1430
620	=item $success = $term->selection_grab ($eventtime)	1431	=item $success = $term->selection_grab ($eventtime[, $clipboard])
621		1432
622	Try to request the primary selection from the server (for example, as set	1433	Try to acquire ownership of the primary (clipboard if C<$clipboard> is
623	by the next method).	1434	true) selection from the server. The corresponding text can be set
		1435	with the next method. No visual feedback will be given. This function
		1436	is mostly useful from within C<on_sel_grab> hooks.
624		1437
625	=item $oldtext = $term->selection ([$newtext])	1438	=item $oldtext = $term->selection ([$newtext, $clipboard])
626		1439
627	Return the current selection text and optionally replace it by C<$newtext>.	1440	Return the current selection (clipboard if C<$clipboard> is true) text
		1441	and optionally replace it by C<$newtext>.
628		1442
		1443	=item $term->selection_clear ([$clipboard])
		1444
		1445	Revoke ownership of the primary (clipboard if C<$clipboard> is true) selection.
		1446
629	#=item $term->overlay ($x, $y, $text)	1447	=item $term->overlay_simple ($x, $y, $text)
630	#	1448
631	#Create a simple multi-line overlay box. See the next method for details.	1449	Create a simple multi-line overlay box. See the next method for details.
632	#	1450
633	#=cut	1451	=cut
634	#	1452
635	#sub urxvt::term::scr_overlay {	1453	sub overlay_simple {
636	# my ($self, $x, $y, $text) = @_;	1454	my ($self, $x, $y, $text) = @_;
637	#	1455
638	# my @lines = split /\n/, $text;	1456	my @lines = split /\n/, $text;
639	#	1457
640	# my $w = 0;	1458	my $w = List::Util::max map $self->strwidth ($_), @lines;
641	# for (map $self->strwidth ($_), @lines) {	1459
642	# $w = $_ if $w < $_;
643	# }
644	#
645	# $self->scr_overlay_new ($x, $y, $w, scalar @lines);	1460	my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
646	# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;	1461	$overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
647	#}	1462
		1463	$overlay
		1464	}
648		1465
649	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])	1466	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
650		1467
651	Create a new (empty) overlay at the given position with the given	1468	Create a new (empty) overlay at the given position with the given
652	width/height. C<$rstyle> defines the initial rendition style	1469	width/height. C<$rstyle> defines the initial rendition style
…		…
663		1480
664	The methods currently supported on C<urxvt::overlay> objects are:	1481	The methods currently supported on C<urxvt::overlay> objects are:
665		1482
666	=over 4	1483	=over 4
667		1484
668	=item $overlay->set ($x, $y, $text, $rend)	1485	=item $overlay->set ($x, $y, $text[, $rend])
669		1486
670	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts	1487	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts
671	text in rxvt-unicode's special encoding and an array of rendition values	1488	text in rxvt-unicode's special encoding and an array of rendition values
672	at a specific position inside the overlay.	1489	at a specific position inside the overlay.
673		1490
		1491	If C<$rend> is missing, then the rendition will not be changed.
		1492
674	=item $overlay->hide	1493	=item $overlay->hide
675		1494
676	If visible, hide the overlay, but do not destroy it.	1495	If visible, hide the overlay, but do not destroy it.
677		1496
678	=item $overlay->show	1497	=item $overlay->show
…		…
687	C<$event> I<must> be the event causing the menu to pop up (a button event,	1506	C<$event> I<must> be the event causing the menu to pop up (a button event,
688	currently).	1507	currently).
689		1508
690	=cut	1509	=cut
691		1510
692	sub urxvt::term::popup {	1511	sub popup {
693	my ($self, $event) = @_;	1512	my ($self, $event) = @_;
694		1513
695	$self->grab ($event->{time}, 1)	1514	$self->grab ($event->{time}, 1)
696	or return;	1515	or return;
697		1516
…		…
719		1538
720	=item $string = $term->locale_decode ($octets)	1539	=item $string = $term->locale_decode ($octets)
721		1540
722	Convert the given locale-encoded octets into a perl string.	1541	Convert the given locale-encoded octets into a perl string.
723		1542
		1543	=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
		1544
		1545	XORs the rendition values in the given span with the provided value
		1546	(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
		1547	refresh hooks to provide effects similar to the selection.
		1548
		1549	=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
		1550
		1551	Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
		1552	whitespace will additionally be xored with the C<$rstyle2>, which defaults
		1553	to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
		1554	it instead. Both styles I<MUST NOT> contain font styles.
		1555
		1556	=item $term->scr_bell
		1557
		1558	Ring the bell!
		1559
724	=item $term->scr_add_lines ($string)	1560	=item $term->scr_add_lines ($string)
725		1561
726	Write the given text string to the screen, as if output by the application	1562	Write the given text string to the screen, as if output by the application
727	running inside the terminal. It may not contain command sequences (escape	1563	running inside the terminal. It may not contain command sequences (escape
728	codes), but is free to use line feeds, carriage returns and tabs. The	1564	codes), but is free to use line feeds, carriage returns and tabs. The
…		…
730		1566
731	Normally its not a good idea to use this function, as programs might be	1567	Normally its not a good idea to use this function, as programs might be
732	confused by changes in cursor position or scrolling. Its useful inside a	1568	confused by changes in cursor position or scrolling. Its useful inside a
733	C<on_add_lines> hook, though.	1569	C<on_add_lines> hook, though.
734		1570
		1571	=item $term->scr_change_screen ($screen)
		1572
		1573	Switch to given screen - 0 primary, 1 secondary.
		1574
735	=item $term->cmd_parse ($octets)	1575	=item $term->cmd_parse ($octets)
736		1576
737	Similar to C<scr_add_lines>, but the argument must be in the	1577	Similar to C<scr_add_lines>, but the argument must be in the
738	locale-specific encoding of the terminal and can contain command sequences	1578	locale-specific encoding of the terminal and can contain command sequences
739	(escape codes) that will be interpreted.	1579	(escape codes) that will be interpreted.
740		1580
741	=item $term->tt_write ($octets)	1581	=item $term->tt_write ($octets)
742		1582
743	Write the octets given in C<$data> to the tty (i.e. as program input). To	1583	Write the octets given in C<$octets> to the tty (i.e. as program input). To
744	pass characters instead of octets, you should convert your strings first	1584	pass characters instead of octets, you should convert your strings first
745	to the locale-specific encoding using C<< $term->locale_encode >>.	1585	to the locale-specific encoding using C<< $term->locale_encode >>.
746		1586
		1587	=item $term->tt_paste ($octets)
		1588
		1589	Write the octets given in C<$octets> to the tty as a paste, converting NL to
		1590	CR and bracketing the data with control sequences if bracketed paste mode
		1591	is set.
		1592
		1593	=item $old_events = $term->pty_ev_events ([$new_events])
		1594
		1595	Replaces the event mask of the pty watcher by the given event mask. Can
		1596	be used to suppress input and output handling to the pty/tty. See the
		1597	description of C<< urxvt::timer->events >>. Make sure to always restore
		1598	the previous value.
		1599
		1600	=item $fd = $term->pty_fd
		1601
		1602	Returns the master file descriptor for the pty in use, or C<-1> if no pty
		1603	is used.
		1604
747	=item $windowid = $term->parent	1605	=item $windowid = $term->parent
748		1606
749	Return the window id of the toplevel window.	1607	Return the window id of the toplevel window.
750		1608
751	=item $windowid = $term->vt	1609	=item $windowid = $term->vt
752		1610
753	Return the window id of the terminal window.	1611	Return the window id of the terminal window.
754		1612
		1613	=item $term->vt_emask_add ($x_event_mask)
		1614
		1615	Adds the specified events to the vt event mask. Useful e.g. when you want
		1616	to receive pointer events all the times:
		1617
		1618	$term->vt_emask_add (urxvt::PointerMotionMask);
		1619
		1620	=item $term->focus_in
		1621
		1622	=item $term->focus_out
		1623
		1624	=item $term->key_press ($state, $keycode[, $time])
		1625
		1626	=item $term->key_release ($state, $keycode[, $time])
		1627
		1628	Deliver various fake events to to terminal.
		1629
755	=item $window_width = $term->width	1630	=item $window_width = $term->width
756		1631
757	=item $window_height = $term->height	1632	=item $window_height = $term->height
758		1633
759	=item $font_width = $term->fwidth	1634	=item $font_width = $term->fwidth
…		…
772		1647
773	=item $max_scrollback = $term->saveLines	1648	=item $max_scrollback = $term->saveLines
774		1649
775	=item $nrow_plus_saveLines = $term->total_rows	1650	=item $nrow_plus_saveLines = $term->total_rows
776		1651
777	=item $lines_in_scrollback = $term->nsaved	1652	=item $topmost_scrollback_row = $term->top_row
778		1653
779	Return various integers describing terminal characteristics.	1654	Return various integers describing terminal characteristics.
780		1655
		1656	=item $x_display = $term->display_id
		1657
		1658	Return the DISPLAY used by rxvt-unicode.
		1659
		1660	=item $lc_ctype = $term->locale
		1661
		1662	Returns the LC_CTYPE category string used by this rxvt-unicode.
		1663
		1664	=item $env = $term->env
		1665
		1666	Returns a copy of the environment in effect for the terminal as a hashref
		1667	similar to C<\%ENV>.
		1668
		1669	=item @envv = $term->envv
		1670
		1671	Returns the environment as array of strings of the form C<VAR=VALUE>.
		1672
		1673	=item @argv = $term->argv
		1674
		1675	Return the argument vector as this terminal, similar to @ARGV, but
		1676	includes the program name as first element.
		1677
		1678	=cut
		1679
		1680	sub env {
		1681	+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), $_[0]->envv }
		1682	}
		1683
		1684	=item $modifiermask = $term->ModLevel3Mask
		1685
		1686	=item $modifiermask = $term->ModMetaMask
		1687
		1688	=item $modifiermask = $term->ModNumLockMask
		1689
		1690	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
		1691	AltGr), the meta key (often Alt) and the num lock key, if applicable.
		1692
		1693	=item $screen = $term->current_screen
		1694
		1695	Returns the currently displayed screen (0 primary, 1 secondary).
		1696
		1697	=item $cursor_is_hidden = $term->hidden_cursor
		1698
		1699	Returns whether the cursor is currently hidden or not.
		1700
781	=item $view_start = $term->view_start ([$newvalue])	1701	=item $view_start = $term->view_start ([$newvalue])
782		1702
783	Returns the negative row number of the topmost line. Minimum value is	1703	Returns the row number of the topmost displayed line. Maximum value is
784	C<0>, which displays the normal terminal contents. Larger values scroll	1704	C<0>, which displays the normal terminal contents. Lower values scroll
785	this many lines into the scrollback buffer.	1705	this many lines into the scrollback buffer.
786		1706
787	=item $term->want_refresh	1707	=item $term->want_refresh
788		1708
789	Requests a screen refresh. At the next opportunity, rxvt-unicode will	1709	Requests a screen refresh. At the next opportunity, rxvt-unicode will
…		…
792		1712
793	Used after changing terminal contents to display them.	1713	Used after changing terminal contents to display them.
794		1714
795	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])	1715	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
796		1716
797	Returns the text of the entire row with number C<$row_number>. Row C<0>	1717	Returns the text of the entire row with number C<$row_number>. Row C<< $term->top_row >>
798	is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost	1718	is the topmost terminal line, row C<< $term->nrow-1 >> is the bottommost
799	terminal line. The scrollback buffer starts at line C<-1> and extends to
800	line C<< -$term->nsaved >>. Nothing will be returned if a nonexistent line	1719	terminal line. Nothing will be returned if a nonexistent line
801	is requested.	1720	is requested.
802		1721
803	If C<$new_text> is specified, it will replace characters in the current	1722	If C<$new_text> is specified, it will replace characters in the current
804	line, starting at column C<$start_col> (default C<0>), which is useful	1723	line, starting at column C<$start_col> (default C<0>), which is useful
805	to replace only parts of a line. The font index in the rendition will	1724	to replace only parts of a line. The font index in the rendition will
806	automatically be updated.	1725	automatically be updated.
807		1726
808	C<$text> is in a special encoding: tabs and wide characters that use more	1727	C<$text> is in a special encoding: tabs and wide characters that use more
809	than one cell when displayed are padded with urxvt::NOCHAR characters	1728	than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
810	(C<chr 65535>). Characters with combining characters and other characters	1729	characters. Characters with combining characters and other characters that
811	that do not fit into the normal tetx encoding will be replaced with	1730	do not fit into the normal text encoding will be replaced with characters
812	characters in the private use area.	1731	in the private use area.
813		1732
814	You have to obey this encoding when changing text. The advantage is	1733	You have to obey this encoding when changing text. The advantage is
815	that C<substr> and similar functions work on screen cells and not on	1734	that C<substr> and similar functions work on screen cells and not on
816	characters.	1735	characters.
817		1736
…		…
868	Return the row number of the first/last row of the line, respectively.	1787	Return the row number of the first/last row of the line, respectively.
869		1788
870	=item $offset = $line->offset_of ($row, $col)	1789	=item $offset = $line->offset_of ($row, $col)
871		1790
872	Returns the character offset of the given row|col pair within the logical	1791	Returns the character offset of the given row|col pair within the logical
873	line.	1792	line. Works for rows outside the line, too, and returns corresponding
		1793	offsets outside the string.
874		1794
875	=item ($row, $col) = $line->coord_of ($offset)	1795	=item ($row, $col) = $line->coord_of ($offset)
876		1796
877	Translates a string offset into terminal coordinates again.	1797	Translates a string offset into terminal coordinates again.
878		1798
879	=back	1799	=back
880		1800
881	=cut	1801	=cut
882		1802
883	sub urxvt::term::line {	1803	sub line {
884	my ($self, $row) = @_;	1804	my ($self, $row) = @_;
885		1805
886	my $maxrow = $self->nrow - 1;	1806	my $maxrow = $self->nrow - 1;
887		1807
888	my ($beg, $end) = ($row, $row);	1808	my ($beg, $end) = ($row, $row);
…		…
952	$offset / $self->{ncol} + $self->{beg},	1872	$offset / $self->{ncol} + $self->{beg},
953	$offset % $self->{ncol}	1873	$offset % $self->{ncol}
954	)	1874	)
955	}	1875	}
956		1876
957	=item ($row, $col) = $line->coord_of ($offset)
958	=item $text = $term->special_encode $string	1877	=item $text = $term->special_encode $string
959		1878
960	Converts a perl string into the special encoding used by rxvt-unicode,	1879	Converts a perl string into the special encoding used by rxvt-unicode,
961	where one character corresponds to one screen cell. See	1880	where one character corresponds to one screen cell. See
962	C<< $term->ROW_t >> for details.	1881	C<< $term->ROW_t >> for details.
963		1882
964	=item $string = $term->special_decode $text	1883	=item $string = $term->special_decode $text
965		1884
966	Converts rxvt-unicodes text reprsentation into a perl string. See	1885	Converts rxvt-unicodes text representation into a perl string. See
967	C<< $term->ROW_t >> for details.	1886	C<< $term->ROW_t >> for details.
968		1887
		1888	=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
		1889
		1890	=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
		1891
		1892	Register/unregister a synchronous button grab. See the XGrabButton
		1893	manpage.
		1894
		1895	=item $success = $term->grab ($eventtime[, $sync])
		1896
		1897	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
		1898	synchronous (C<$sync> is true). Also remembers the grab timestamp.
		1899
		1900	=item $term->allow_events_async
		1901
		1902	Calls XAllowEvents with AsyncBoth for the most recent grab.
		1903
		1904	=item $term->allow_events_sync
		1905
		1906	Calls XAllowEvents with SyncBoth for the most recent grab.
		1907
		1908	=item $term->allow_events_replay
		1909
		1910	Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
		1911	recent grab.
		1912
		1913	=item $term->ungrab
		1914
		1915	Calls XUngrabPointer and XUngrabKeyboard for the most recent grab. Is called automatically on
		1916	evaluation errors, as it is better to lose the grab in the error case as
		1917	the session.
		1918
		1919	=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
		1920
		1921	=item $atom_name = $term->XGetAtomName ($atom)
		1922
		1923	=item @atoms = $term->XListProperties ($window)
		1924
		1925	=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
		1926
		1927	=item $term->XChangeProperty ($window, $property, $type, $format, $octets)
		1928
		1929	=item $term->XDeleteProperty ($window, $property)
		1930
		1931	=item $window = $term->DefaultRootWindow
		1932
		1933	=item $term->XReparentWindow ($window, $parent, [$x, $y])
		1934
		1935	=item $term->XMapWindow ($window)
		1936
		1937	=item $term->XUnmapWindow ($window)
		1938
		1939	=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
		1940
		1941	=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
		1942
		1943	=item $term->XChangeInput ($window, $add_events[, $del_events])
		1944
		1945	=item $keysym = $term->XStringToKeysym ($string)
		1946
		1947	=item $string = $term->XKeysymToString ($keysym)
		1948
		1949	Various X or X-related functions. The C<$term> object only serves as
		1950	the source of the display, otherwise those functions map more-or-less
		1951	directly onto the X functions of the same name.
		1952
969	=back	1953	=back
970		1954
		1955	=cut
		1956
		1957	package urxvt::popup;
		1958
971	=head2 The C<urxvt::popup> Class	1959	=head2 The C<urxvt::popup> Class
972		1960
973	=over 4	1961	=over 4
974		1962
975	=cut	1963	=cut
976
977	package urxvt::popup;
978		1964
979	sub add_item {	1965	sub add_item {
980	my ($self, $item) = @_;	1966	my ($self, $item) = @_;
981		1967
		1968	$item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal};
		1969	$item->{rend}{hover} = "\x1b[0;30;46m" unless exists $item->{rend}{hover};
		1970	$item->{rend}{active} = "\x1b[m" unless exists $item->{rend}{active};
		1971
		1972	$item->{render} ||= sub { $_[0]{text} };
		1973
982	push @{ $self->{item} }, $item;	1974	push @{ $self->{item} }, $item;
983	}	1975	}
		1976
		1977	=item $popup->add_title ($title)
		1978
		1979	Adds a non-clickable title to the popup.
		1980
		1981	=cut
		1982
		1983	sub add_title {
		1984	my ($self, $title) = @_;
		1985
		1986	$self->add_item ({
		1987	rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
		1988	text => $title,
		1989	activate => sub { },
		1990	});
		1991	}
		1992
		1993	=item $popup->add_separator ([$sepchr])
		1994
		1995	Creates a separator, optionally using the character given as C<$sepchr>.
		1996
		1997	=cut
		1998
		1999	sub add_separator {
		2000	my ($self, $sep) = @_;
		2001
		2002	$sep ||= "=";
		2003
		2004	$self->add_item ({
		2005	rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
		2006	text => "",
		2007	render => sub { $sep x $self->{term}->ncol },
		2008	activate => sub { },
		2009	});
		2010	}
		2011
		2012	=item $popup->add_button ($text, $cb)
		2013
		2014	Adds a clickable button to the popup. C<$cb> is called whenever it is
		2015	selected.
		2016
		2017	=cut
984		2018
985	sub add_button {	2019	sub add_button {
986	my ($self, $text, $cb) = @_;	2020	my ($self, $text, $cb) = @_;
987		2021
988	$self->add_item ({ type => "button", text => "[ $text ]", activate => $cb });	2022	$self->add_item ({ type => "button", text => $text, activate => $cb});
989	}	2023	}
		2024
		2025	=item $popup->add_toggle ($text, $initial_value, $cb)
		2026
		2027	Adds a toggle/checkbox item to the popup. The callback gets called
		2028	whenever it gets toggled, with a boolean indicating its new value as its
		2029	first argument.
		2030
		2031	=cut
		2032
		2033	sub add_toggle {
		2034	my ($self, $text, $value, $cb) = @_;
		2035
		2036	my $item; $item = {
		2037	type => "button",
		2038	text => " $text",
		2039	value => $value,
		2040	render => sub { ($_[0]{value} ? "* " : " ") . $text },
		2041	activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
		2042	};
		2043
		2044	$self->add_item ($item);
		2045	}
		2046
		2047	=item $popup->show
		2048
		2049	Displays the popup (which is initially hidden).
		2050
		2051	=cut
990		2052
991	sub show {	2053	sub show {
992	my ($self) = @_;	2054	my ($self) = @_;
993		2055
994	local $urxvt::popup::self = $self;	2056	local $urxvt::popup::self = $self;
995		2057
996	urxvt->new ("--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0,	2058	my $env = $self->{term}->env;
		2059	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
		2060	delete $env->{LC_ALL};
		2061	$env->{LC_CTYPE} = $self->{term}->locale;
		2062
		2063	my $term = urxvt::term->new (
		2064	$env, "popup",
		2065	"--perl-lib" => "", "--perl-ext-common" => "",
		2066	"-pty-fd" => -1, "-sl" => 0,
		2067	"-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
997	"--transient-for" => $self->{term}->parent,	2068	"--transient-for" => $self->{term}->parent,
		2069	"-display" => $self->{term}->display_id,
998	"-pe" => "urxvt_popup")	2070	"-pe" => "urxvt-popup",
999	or die "unable to create popup window\n";	2071	) or die "unable to create popup window\n";
		2072
		2073	unless (delete $term->{urxvt_popup_init_done}) {
		2074	$term->ungrab;
		2075	$term->destroy;
		2076	die "unable to initialise popup window\n";
		2077	}
1000	}	2078	}
1001		2079
1002	sub DESTROY {	2080	sub DESTROY {
1003	my ($self) = @_;	2081	my ($self) = @_;
1004		2082
		2083	delete $self->{term}{_destroy}{$self};
1005	$self->{term}->ungrab;	2084	$self->{term}->ungrab;
1006	}	2085	}
		2086
		2087	=back
		2088
		2089	=cut
		2090
		2091	package urxvt::watcher;
1007		2092
1008	=head2 The C<urxvt::timer> Class	2093	=head2 The C<urxvt::timer> Class
1009		2094
1010	This class implements timer watchers/events. Time is represented as a	2095	This class implements timer watchers/events. Time is represented as a
1011	fractional number of seconds since the epoch. Example:	2096	fractional number of seconds since the epoch. Example:
…		…
1015	->new	2100	->new
1016	->interval (1)	2101	->interval (1)
1017	->cb (sub {	2102	->cb (sub {
1018	$term->{overlay}->set (0, 0,	2103	$term->{overlay}->set (0, 0,
1019	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);	2104	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
1020	});	2105	});
1021		2106
1022	=over 4	2107	=over 4
1023		2108
1024	=item $timer = new urxvt::timer	2109	=item $timer = new urxvt::timer
1025		2110
…		…
1028		2113
1029	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })	2114	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })
1030		2115
1031	Set the callback to be called when the timer triggers.	2116	Set the callback to be called when the timer triggers.
1032		2117
1033	=item $tstamp = $timer->at
1034
1035	Return the time this watcher will fire next.
1036
1037	=item $timer = $timer->set ($tstamp)	2118	=item $timer = $timer->set ($tstamp[, $interval])
1038		2119
1039	Set the time the event is generated to $tstamp.	2120	Set the time the event is generated to $tstamp (and optionally specifies a
		2121	new $interval).
1040		2122
1041	=item $timer = $timer->interval ($interval)	2123	=item $timer = $timer->interval ($interval)
1042		2124
1043	Normally (and when C<$interval> is C<0>), the timer will automatically	2125	By default (and when C<$interval> is C<0>), the timer will automatically
1044	stop after it has fired once. If C<$interval> is non-zero, then the timer	2126	stop after it has fired once. If C<$interval> is non-zero, then the timer
1045	is automatically rescheduled at the given intervals.	2127	is automatically rescheduled at the given intervals.
1046		2128
1047	=item $timer = $timer->start	2129	=item $timer = $timer->start
1048		2130
1049	Start the timer.	2131	Start the timer.
1050		2132
1051	=item $timer = $timer->start ($tstamp)	2133	=item $timer = $timer->start ($tstamp[, $interval])
1052		2134
1053	Set the event trigger time to C<$tstamp> and start the timer.	2135	Set the event trigger time to C<$tstamp> and start the timer. Optionally
		2136	also replaces the interval.
		2137
		2138	=item $timer = $timer->after ($delay[, $interval])
		2139
		2140	Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1054		2141
1055	=item $timer = $timer->stop	2142	=item $timer = $timer->stop
1056		2143
1057	Stop the timer.	2144	Stop the timer.
1058		2145
…		…
1064		2151
1065	$term->{socket} = ...	2152	$term->{socket} = ...
1066	$term->{iow} = urxvt::iow	2153	$term->{iow} = urxvt::iow
1067	->new	2154	->new
1068	->fd (fileno $term->{socket})	2155	->fd (fileno $term->{socket})
1069	->events (1) # wait for read data	2156	->events (urxvt::EV_READ)
1070	->start	2157	->start
1071	->cb (sub {	2158	->cb (sub {
1072	my ($iow, $revents) = @_;	2159	my ($iow, $revents) = @_;
1073	# $revents must be 1 here, no need to check	2160	# $revents must be 1 here, no need to check
1074	sysread $term->{socket}, my $buf, 8192	2161	sysread $term->{socket}, my $buf, 8192
…		…
1087	Set the callback to be called when io events are triggered. C<$reventmask>	2174	Set the callback to be called when io events are triggered. C<$reventmask>
1088	is a bitset as described in the C<events> method.	2175	is a bitset as described in the C<events> method.
1089		2176
1090	=item $iow = $iow->fd ($fd)	2177	=item $iow = $iow->fd ($fd)
1091		2178
1092	Set the filedescriptor (not handle) to watch.	2179	Set the file descriptor (not handle) to watch.
1093		2180
1094	=item $iow = $iow->events ($eventmask)	2181	=item $iow = $iow->events ($eventmask)
1095		2182
1096	Set the event mask to watch. Bit #0 (value C<1>) enables watching for read	2183	Set the event mask to watch. The only allowed values are
1097	data, Bit #1 (value C<2>) enables watching for write data.	2184	C<urxvt::EV_READ> and C<urxvt::EV_WRITE>, which might be ORed
		2185	together, or C<urxvt::EV_NONE>.
1098		2186
1099	=item $iow = $iow->start	2187	=item $iow = $iow->start
1100		2188
1101	Start watching for requested events on the given handle.	2189	Start watching for requested events on the given handle.
1102		2190
1103	=item $iow = $iow->stop	2191	=item $iow = $iow->stop
1104		2192
1105	Stop watching for events on the given filehandle.	2193	Stop watching for events on the given file handle.
		2194
		2195	=back
		2196
		2197	=head2 The C<urxvt::iw> Class
		2198
		2199	This class implements idle watchers, that get called automatically when
		2200	the process is idle. They should return as fast as possible, after doing
		2201	some useful work.
		2202
		2203	=over 4
		2204
		2205	=item $iw = new urxvt::iw
		2206
		2207	Create a new idle watcher object in stopped state.
		2208
		2209	=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
		2210
		2211	Set the callback to be called when the watcher triggers.
		2212
		2213	=item $timer = $timer->start
		2214
		2215	Start the watcher.
		2216
		2217	=item $timer = $timer->stop
		2218
		2219	Stop the watcher.
		2220
		2221	=back
		2222
		2223	=head2 The C<urxvt::pw> Class
		2224
		2225	This class implements process watchers. They create an event whenever a
		2226	process exits, after which they stop automatically.
		2227
		2228	my $pid = fork;
		2229	...
		2230	$term->{pw} = urxvt::pw
		2231	->new
		2232	->start ($pid)
		2233	->cb (sub {
		2234	my ($pw, $exit_status) = @_;
		2235	...
		2236	});
		2237
		2238	=over 4
		2239
		2240	=item $pw = new urxvt::pw
		2241
		2242	Create a new process watcher in stopped state.
		2243
		2244	=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
		2245
		2246	Set the callback to be called when the timer triggers.
		2247
		2248	=item $pw = $timer->start ($pid)
		2249
		2250	Tells the watcher to start watching for process C<$pid>.
		2251
		2252	=item $pw = $pw->stop
		2253
		2254	Stop the watcher.
1106		2255
1107	=back	2256	=back
1108		2257
1109	=head1 ENVIRONMENT	2258	=head1 ENVIRONMENT
1110		2259
…		…
1113	This variable controls the verbosity level of the perl extension. Higher	2262	This variable controls the verbosity level of the perl extension. Higher
1114	numbers indicate more verbose output.	2263	numbers indicate more verbose output.
1115		2264
1116	=over 4	2265	=over 4
1117		2266
1118	=item =0 - only fatal messages	2267	=item == 0 - fatal messages
1119		2268
1120	=item =3 - script loading and management	2269	=item >= 3 - script loading and management
1121		2270
1122	=item =10 - all events received	2271	=item >=10 - all called hooks
		2272
		2273	=item >=11 - hook return values
1123		2274
1124	=back	2275	=back
1125		2276
1126	=head1 AUTHOR	2277	=head1 AUTHOR
1127		2278
1128	Marc Lehmann <pcg@goof.com>	2279	Marc Lehmann <schmorp@schmorp.de>
1129	http://software.schmorp.de/pkg/rxvt-unicode	2280	http://software.schmorp.de/pkg/rxvt-unicode
1130		2281
1131	=cut	2282	=cut
1132		2283
1133	1	2284	1
		2285
		2286	# vim: sw=3:

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