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Revision 1.26 by root, Tue Jan 3 21:22:22 2006 UTC vs.
Revision 1.147 by root, Tue Oct 3 11:32:20 2006 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, scripts specified via the	22	Every time a terminal object gets created, extension scripts specified via
23	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	=head1 PREPACKAGED EXTENSIONS
32		32
33	This section describes the extensiosn delivered with this version. You can	33	This section describes the extensions delivered with this release. You can
34	find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.	34	find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.
35		35
36	You can activate them like this:	36	You can activate them like this:
37		37
38	@@RXVT_NAME@@ -pe <extensionname>	38	@@RXVT_NAME@@ -pe <extensionname>
39		39
		40	Or by adding them to the resource for extensions loaded by default:
		41
		42	URxvt.perl-ext-common: default,automove-background,selection-autotransform
		43
40	=over 4	44	=over 4
41		45
42	=item selection	46	=item selection (enabled by default)
43		47
44	Intelligent selection. This extension tries to be more intelligent when	48	(More) intelligent selection. This extension tries to be more intelligent
45	the user extends selections (double-click). Right now, it tries to select	49	when the user extends selections (double-click and further clicks). Right
46	urls and complete shell-quoted arguments, which is very convenient, too,	50	now, it tries to select words, urls and complete shell-quoted
47	if your F<ls> supports C<--quoting-style=shell>.	51	arguments, which is very convenient, too, if your F<ls> supports
		52	C<--quoting-style=shell>.
48		53
49	It also offers the following bindable event:	54	A double-click usually selects the word under the cursor, further clicks
		55	will enlarge the selection.
		56
		57	The selection works by trying to match a number of regexes and displaying
		58	them in increasing order of length. You can add your own regexes by
		59	specifying resources of the form:
		60
		61	URxvt.selection.pattern-0: perl-regex
		62	URxvt.selection.pattern-1: perl-regex
		63	...
		64
		65	The index number (0, 1...) must not have any holes, and each regex must
		66	contain at least one pair of capturing parentheses, which will be used for
		67	the match. For example, the following adds a regex that matches everything
		68	between two vertical bars:
		69
		70	URxvt.selection.pattern-0: \\|([^|]+)\\|
		71
		72	Another example: Programs I use often output "absolute path: " at the
		73	beginning of a line when they process multiple files. The following
		74	pattern matches the filename (note, there is a single space at the very
		75	end):
		76
		77	URxvt.selection.pattern-0: ^(/[^:]+):\
		78
		79	You can look at the source of the selection extension to see more
		80	interesting uses, such as parsing a line from beginning to end.
		81
		82	This extension also offers following bindable keyboard commands:
50		83
51	=over 4	84	=over 4
52		85
53	=item rot13	86	=item rot13
54		87
…		…
56		89
57	URxvt.keysym.C-M-r: perl:selection:rot13	90	URxvt.keysym.C-M-r: perl:selection:rot13
58		91
59	=back	92	=back
60		93
		94	=item option-popup (enabled by default)
		95
		96	Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at
		97	runtime.
		98
		99	Other extensions can extend this popup menu by pushing a code reference
		100	onto C<@{ $term->{option_popup_hook} }>, which gets called whenever the
		101	popup is being displayed.
		102
		103	It's sole argument is the popup menu, which can be modified. It should
		104	either return nothing or a string, the initial boolean value and a code
		105	reference. The string will be used as button text and the code reference
		106	will be called when the toggle changes, with the new boolean value as
		107	first argument.
		108
		109	The following will add an entry C<myoption> that changes
		110	C<$self->{myoption}>:
		111
		112	push @{ $self->{term}{option_popup_hook} }, sub {
		113	("my option" => $myoption, sub { $self->{myoption} = $_[0] })
		114	};
		115
		116	=item selection-popup (enabled by default)
		117
		118	Binds a popup menu to Ctrl-Button3 that lets you convert the selection
		119	text into various other formats/action (such as uri unescaping, perl
		120	evaluation, web-browser starting etc.), depending on content.
		121
		122	Other extensions can extend this popup menu by pushing a code reference
		123	onto C<@{ $term->{selection_popup_hook} }>, which gets called whenever the
		124	popup is being displayed.
		125
		126	It's sole argument is the popup menu, which can be modified. The selection
		127	is in C<$_>, which can be used to decide whether to add something or not.
		128	It should either return nothing or a string and a code reference. The
		129	string will be used as button text and the code reference will be called
		130	when the button gets activated and should transform C<$_>.
		131
		132	The following will add an entry C<a to b> that transforms all C<a>s in
		133	the selection to C<b>s, but only if the selection currently contains any
		134	C<a>s:
		135
		136	push @{ $self->{term}{selection_popup_hook} }, sub {
		137	/a/ ? ("a to be" => sub { s/a/b/g }
		138	: ()
		139	};
		140
		141	=item searchable-scrollback<hotkey> (enabled by default)
		142
		143	Adds regex search functionality to the scrollback buffer, triggered
		144	by a hotkey (default: C<M-s>). While in search mode, normal terminal
		145	input/output is suspended and a regex is displayed at the bottom of the
		146	screen.
		147
		148	Inputting characters appends them to the regex and continues incremental
		149	search. C<BackSpace> removes a character from the regex, C<Up> and C<Down>
		150	search upwards/downwards in the scrollback buffer, C<End> jumps to the
		151	bottom. C<Escape> leaves search mode and returns to the point where search
		152	was started, while C<Enter> or C<Return> stay at the current position and
		153	additionally stores the first match in the current line into the primary
		154	selection.
		155
		156	The regex defaults to "(?i)", resulting in a case-insensitive search. To
		157	get a case-sensitive search you can delete this prefix using C<BackSpace>
		158	or simply use an uppercase character which removes the "(?i)" prefix.
		159
		160	See L<perlre> for more info about perl regular expression syntax.
		161
		162	=item readline (enabled by default)
		163
		164	A support package that tries to make editing with readline easier. At
		165	the moment, it reacts to clicking shift-left mouse button by trying to
		166	move the text cursor to this position. It does so by generating as many
		167	cursor-left or cursor-right keypresses as required (the this only works
		168	for programs that correctly support wide characters).
		169
		170	To avoid too many false positives, this is only done when:
		171
		172	=over 4
		173
		174	=item - the tty is in ICANON state.
		175
		176	=item - the text cursor is visible.
		177
		178	=item - the primary screen is currently being displayed.
		179
		180	=item - the mouse is on the same (multi-row-) line as the text cursor.
		181
		182	=back
		183
		184	The normal selection mechanism isn't disabled, so quick successive clicks
		185	might interfere with selection creation in harmless ways.
		186
		187	=item selection-autotransform
		188
		189	This selection allows you to do automatic transforms on a selection
		190	whenever a selection is made.
		191
		192	It works by specifying perl snippets (most useful is a single C<s///>
		193	operator) that modify C<$_> as resources:
		194
		195	URxvt.selection-autotransform.0: transform
		196	URxvt.selection-autotransform.1: transform
		197	...
		198
		199	For example, the following will transform selections of the form
		200	C<filename:number>, often seen in compiler messages, into C<vi +$filename
		201	$word>:
		202
		203	URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
		204
		205	And this example matches the same,but replaces it with vi-commands you can
		206	paste directly into your (vi :) editor:
		207
		208	URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
		209
		210	Of course, this can be modified to suit your needs and your editor :)
		211
		212	To expand the example above to typical perl error messages ("XXX at
		213	FILENAME line YYY."), you need a slightly more elaborate solution:
		214
		215	URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
		216	URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
		217
		218	The first line tells the selection code to treat the unchanging part of
		219	every error message as a selection pattern, and the second line transforms
		220	the message into vi commands to load the file.
		221
		222	=item tabbed
		223
		224	This transforms the terminal into a tabbar with additional terminals, that
		225	is, it implements what is commonly referred to as "tabbed terminal". The topmost line
		226	displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
		227	button per tab.
		228
		229	Clicking a button will activate that tab. Pressing B<Shift-Left> and
		230	B<Shift-Right> will switch to the tab left or right of the current one,
		231	while B<Shift-Down> creates a new tab.
		232
		233	The tabbar itself can be configured similarly to a normal terminal, but
		234	with a resource class of C<URxvt.tabbed>. In addition, it supports the
		235	following four resources (shown with defaults):
		236
		237	URxvt.tabbed.tabbar-fg: <colour-index, default 3>
		238	URxvt.tabbed.tabbar-bg: <colour-index, default 0>
		239	URxvt.tabbed.tab-fg: <colour-index, default 0>
		240	URxvt.tabbed.tab-bg: <colour-index, default 1>
		241
		242	See I<COLOR AND GRAPHICS> in the @@RXVT_NAME@@(1) manpage for valid
		243	indices.
		244
		245	=item matcher
		246
		247	Uses per-line display filtering (C<on_line_update>) to underline text
		248	matching a certain pattern and make it clickable. When clicked with the
		249	mouse button specified in the C<matcher.button> resource (default 2, or
		250	middle), the program specified in the C<matcher.launcher> resource
		251	(default, the C<urlLauncher> resource, C<sensible-browser>) will be started
		252	with the matched text as first argument. The default configuration is
		253	suitable for matching URLs and launching a web browser, like the
		254	former "mark-urls" extension.
		255
		256	The default pattern to match URLs can be overridden with the
		257	C<matcher.pattern.0> resource, and additional patterns can be specified
		258	with numbered patterns, in a manner similar to the "selection" extension.
		259	The launcher can also be overridden on a per-pattern basis.
		260
		261	Example configuration:
		262
		263	URxvt.perl-ext: default,matcher
		264	URxvt.urlLauncher: sensible-browser
		265	URxvt.matcher.button: 1
		266	URxvt.matcher.pattern.1: \\bwww\\.[\\w-]\\.[\\w./?&@#-]*[\\w/-]
		267	URxvt.matcher.pattern.2: \\B(/\\S+?):(\\d+)(?=:|$)
		268	URxvt.matcher.launcher.2: gvim +$2 $1
		269
		270	=item xim-onthespot
		271
		272	This (experimental) perl extension implements OnTheSpot editing. It does
		273	not work perfectly, and some input methods don't seem to work well with
		274	OnTheSpot editing in general, but it seems to work at leats for SCIM and
		275	kinput2.
		276
		277	You enable it by specifying this extension and a preedit style of
		278	C<OnTheSpot>, i.e.:
		279
		280	@@RXVT_NAME@@ -pt OnTheSpot -pe xim-onthespot
		281
		282	=item kuake<hotkey>
		283
		284	A very primitive quake-console-like extension. It was inspired by a
		285	description of how the programs C<kuake> and C<yakuake> work: Whenever the
		286	user presses a global accelerator key (by default C<F10>), the terminal
		287	will show or hide itself. Another press of the accelerator key will hide
		288	or show it again.
		289
		290	Initially, the window will not be shown when using this extension.
		291
		292	This is useful if you need a single terminal thats not using any desktop
		293	space most of the time but is quickly available at the press of a key.
		294
		295	The accelerator key is grabbed regardless of any modifiers, so this
		296	extension will actually grab a physical key just for this function.
		297
		298	If you want a quake-like animation, tell your window manager to do so
		299	(fvwm can do it).
		300
		301	=item automove-background
		302
		303	This is basically a very small extension that dynamically changes the
		304	background pixmap offset to the window position, in effect creating the
		305	same effect as pseudo transparency with a custom pixmap. No scaling is
		306	supported in this mode. Example:
		307
		308	@@RXVT_NAME@@ -pixmap background.xpm -pe automove-background
		309
		310	=item block-graphics-to-ascii
		311
		312	A not very useful example of filtering all text output to the terminal
		313	by replacing all line-drawing characters (U+2500 .. U+259F) by a
		314	similar-looking ascii character.
		315
61	=item digital-clock	316	=item digital-clock
62		317
63	Displays a digital clock using the built-in overlay.	318	Displays a digital clock using the built-in overlay.
		319
		320	=item remote-clipboard
		321
		322	Somewhat of a misnomer, this extension adds two menu entries to the
		323	selection popup that allows one ti run external commands to store the
		324	selection somewhere and fetch it again.
		325
		326	We use it to implement a "distributed selection mechanism", which just
		327	means that one command uploads the file to a remote server, and another
		328	reads it.
		329
		330	The commands can be set using the C<URxvt.remote-selection.store> and
		331	C<URxvt.remote-selection.fetch> resources. The first should read the
		332	selection to store from STDIN (always in UTF-8), the second should provide
		333	the selection data on STDOUT (also in UTF-8).
		334
		335	The defaults (which are likely useless to you) use rsh and cat:
		336
		337	URxvt.remote-selection.store: rsh ruth 'cat >/tmp/distributed-selection'
		338	URxvt.remote-selection.fetch: rsh ruth 'cat /tmp/distributed-selection'
		339
		340	=item selection-pastebin
		341
		342	This is a little rarely useful extension that Uploads the selection as
		343	textfile to a remote site (or does other things). (The implementation is
		344	not currently secure for use in a multiuser environment as it writes to
		345	F</tmp> directly.).
		346
		347	It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
		348	i.e.
		349
		350	URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
		351
		352	Pressing this combination runs a command with C<%> replaced by the name of
		353	the textfile. This command can be set via a resource:
		354
		355	URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
		356
		357	And the default is likely not useful to anybody but the few people around
		358	here :)
		359
		360	The name of the textfile is the hex encoded md5 sum of the selection, so
		361	the same content should lead to the same filename.
		362
		363	After a successful upload the selection will be replaced by the text given
		364	in the C<selection-pastebin-url> resource (again, the % is the placeholder
		365	for the filename):
		366
		367	URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
		368
		369	I<Note to xrdb users:> xrdb uses the C preprocessor, which might interpret
		370	the double C</> characters as comment start. Use C<\057\057> instead,
		371	which works regardless of wether xrdb is used to parse the resource file
		372	or not.
64		373
65	=item example-refresh-hooks	374	=item example-refresh-hooks
66		375
67	Displays a very simple digital clock in the upper right corner of the	376	Displays a very simple digital clock in the upper right corner of the
68	window. Illustrates overwriting the refresh callbacks to create your own	377	window. Illustrates overwriting the refresh callbacks to create your own
69	overlays or changes.	378	overlays or changes.
70		379
71	=back	380	=back
		381
		382	=head1 API DOCUMENTATION
72		383
73	=head2 General API Considerations	384	=head2 General API Considerations
74		385
75	All objects (such as terminals, time watchers etc.) are typical	386	All objects (such as terminals, time watchers etc.) are typical
76	reference-to-hash objects. The hash can be used to store anything you	387	reference-to-hash objects. The hash can be used to store anything you
…		…
81	When objects are destroyed on the C++ side, the perl object hashes are	392	When objects are destroyed on the C++ side, the perl object hashes are
82	emptied, so its best to store related objects such as time watchers and	393	emptied, so its best to store related objects such as time watchers and
83	the like inside the terminal object so they get destroyed as soon as the	394	the like inside the terminal object so they get destroyed as soon as the
84	terminal is destroyed.	395	terminal is destroyed.
85		396
		397	Argument names also often indicate the type of a parameter. Here are some
		398	hints on what they mean:
		399
		400	=over 4
		401
		402	=item $text
		403
		404	Rxvt-unicodes special way of encoding text, where one "unicode" character
		405	always represents one screen cell. See L<ROW_t> for a discussion of this format.
		406
		407	=item $string
		408
		409	A perl text string, with an emphasis on I<text>. It can store all unicode
		410	characters and is to be distinguished with text encoded in a specific
		411	encoding (often locale-specific) and binary data.
		412
		413	=item $octets
		414
		415	Either binary data or - more common - a text string encoded in a
		416	locale-specific way.
		417
		418	=back
		419
		420	=head2 Extension Objects
		421
		422	Every perl extension is a perl class. A separate perl object is created
		423	for each terminal, and each terminal has its own set of extenion objects,
		424	which are passed as the first parameter to hooks. So extensions can use
		425	their C<$self> object without having to think about clashes with other
		426	extensions or other terminals, with the exception of methods and members
		427	that begin with an underscore character C<_>: these are reserved for
		428	internal use.
		429
		430	Although it isn't a C<urxvt::term> object, you can call all methods of the
		431	C<urxvt::term> class on this object.
		432
		433	It has the following methods and data members:
		434
		435	=over 4
		436
		437	=item $urxvt_term = $self->{term}
		438
		439	Returns the C<urxvt::term> object associated with this instance of the
		440	extension. This member I<must not> be changed in any way.
		441
		442	=item $self->enable ($hook_name => $cb, [$hook_name => $cb..])
		443
		444	Dynamically enable the given hooks (named without the C<on_> prefix) for
		445	this extension, replacing any previous hook. This is useful when you want
		446	to overwrite time-critical hooks only temporarily.
		447
		448	=item $self->disable ($hook_name[, $hook_name..])
		449
		450	Dynamically disable the given hooks.
		451
		452	=back
		453
86	=head2 Hooks	454	=head2 Hooks
87		455
88	The following subroutines can be declared in loaded scripts, and will be	456	The following subroutines can be declared in extension files, and will be
89	called whenever the relevant event happens.	457	called whenever the relevant event happens.
90		458
91	The first argument passed to them is an object private to each terminal	459	The first argument passed to them is an extension object as described in
92	and extension package. You can call all C<urxvt::term> methods on it, but	460	the in the C<Extension Objects> section.
93	its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
94	object that is shared between all packages is stored in the C<term>
95	member.
96		461
97	All of them must return a boolean value. If it is true, then the event	462	B<All> of these hooks must return a boolean value. If any of the called
98	counts as being I<consumed>, and the invocation of other hooks is skipped,	463	hooks returns true, then the event counts as being I<consumed>, and the
99	and the relevant action might not be carried out by the C++ code.	464	relevant action might not be carried out by the C++ code.
100		465
101	When in doubt, return a false value (preferably C<()>).	466	I<< When in doubt, return a false value (preferably C<()>). >>
102		467
103	=over 4	468	=over 4
104		469
105	=item on_init $term	470	=item on_init $term
106		471
107	Called after a new terminal object has been initialized, but before	472	Called after a new terminal object has been initialized, but before
108	windows are created or the command gets run.	473	windows are created or the command gets run. Most methods are unsafe to
		474	call or deliver senseless data, as terminal size and other characteristics
		475	have not yet been determined. You can safely query and change resources
		476	and options, though. For many purposes the C<on_start> hook is a better
		477	place.
		478
		479	=item on_start $term
		480
		481	Called at the very end of initialisation of a new terminal, just before
		482	trying to map (display) the toplevel and returning to the main loop.
		483
		484	=item on_destroy $term
		485
		486	Called whenever something tries to destroy terminal, when the terminal is
		487	still fully functional (not for long, though).
109		488
110	=item on_reset $term	489	=item on_reset $term
111		490
112	Called after the screen is "reset" for any reason, such as resizing or	491	Called after the screen is "reset" for any reason, such as resizing or
113	control sequences. Here is where you can react on changes to size-related	492	control sequences. Here is where you can react on changes to size-related
114	variables.	493	variables.
115		494
116	=item on_start $term	495	=item on_child_start $term, $pid
117		496
118	Called at the very end of initialisation of a new terminal, just before	497	Called just after the child process has been C<fork>ed.
119	returning to the mainloop.	498
		499	=item on_child_exit $term, $status
		500
		501	Called just after the child process has exited. C<$status> is the status
		502	from C<waitpid>.
120		503
121	=item on_sel_make $term, $eventtime	504	=item on_sel_make $term, $eventtime
122		505
123	Called whenever a selection has been made by the user, but before the	506	Called whenever a selection has been made by the user, but before the
124	selection text is copied, so changes to the beginning, end or type of the	507	selection text is copied, so changes to the beginning, end or type of the
…		…
131		514
132	Called whenever a selection has been copied, but before the selection is	515	Called whenever a selection has been copied, but before the selection is
133	requested from the server. The selection text can be queried and changed	516	requested from the server. The selection text can be queried and changed
134	by calling C<< $term->selection >>.	517	by calling C<< $term->selection >>.
135		518
136	Returning a true value aborts selection grabbing. It will still be hilighted.	519	Returning a true value aborts selection grabbing. It will still be highlighted.
137		520
138	=item on_sel_extend $term	521	=item on_sel_extend $term
139		522
140	Called whenever the user tries to extend the selection (e.g. with a double	523	Called whenever the user tries to extend the selection (e.g. with a double
141	click) and is either supposed to return false (normal operation), or	524	click) and is either supposed to return false (normal operation), or
142	should extend the selection itelf and return true to suppress the built-in	525	should extend the selection itself and return true to suppress the built-in
143	processing.	526	processing. This can happen multiple times, as long as the callback
		527	returns true, it will be called on every further click by the user and is
		528	supposed to enlarge the selection more and more, if possible.
144		529
145	See the F<selection> example extension.	530	See the F<selection> example extension.
146		531
147	=item on_focus_in $term
148
149	Called whenever the window gets the keyboard focus, before urxvt does
150	focus in processing.
151
152	=item on_focus_out $term
153
154	Called wheneever the window loses keyboard focus, before urxvt does focus
155	out processing.
156
157	=item on_view_change $term, $offset	532	=item on_view_change $term, $offset
158		533
159	Called whenever the view offset changes, i..e the user or program	534	Called whenever the view offset changes, i.e. the user or program
160	scrolls. Offset C<0> means display the normal terminal, positive values	535	scrolls. Offset C<0> means display the normal terminal, positive values
161	show this many lines of scrollback.	536	show this many lines of scrollback.
162		537
163	=item on_scroll_back $term, $lines, $saved	538	=item on_scroll_back $term, $lines, $saved
164		539
…		…
168		543
169	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,	544	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
170	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total	545	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
171	number of lines that will be in the scrollback buffer.	546	number of lines that will be in the scrollback buffer.
172		547
173	=item on_tty_activity $term *NYI*	548	=item on_osc_seq $term, $op, $args
174		549
175	Called whenever the program(s) running in the urxvt window send output.	550	Called on every OSC sequence and can be used to suppress it or modify its
		551	behaviour. The default should be to return an empty list. A true value
		552	suppresses execution of the request completely. Make sure you don't get
		553	confused by recursive invocations when you output an osc sequence within
		554	this callback.
		555
		556	C<on_osc_seq_perl> should be used for new behaviour.
		557
		558	=item on_osc_seq_perl $term, $string
		559
		560	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
		561	operating system command) is processed. Cursor position and other state
		562	information is up-to-date when this happens. For interoperability, the
		563	string should start with the extension name and a colon, to distinguish
		564	it from commands for other extensions, and this might be enforced in the
		565	future.
		566
		567	Be careful not ever to trust (in a security sense) the data you receive,
		568	as its source can not easily be controlled (e-mail content, messages from
		569	other users on the same system etc.).
		570
		571	=item on_add_lines $term, $string
		572
		573	Called whenever text is about to be output, with the text as argument. You
		574	can filter/change and output the text yourself by returning a true value
		575	and calling C<< $term->scr_add_lines >> yourself. Please note that this
		576	might be very slow, however, as your hook is called for B<all> text being
		577	output.
		578
		579	=item on_tt_write $term, $octets
		580
		581	Called whenever some data is written to the tty/pty and can be used to
		582	suppress or filter tty input.
		583
		584	=item on_line_update $term, $row
		585
		586	Called whenever a line was updated or changed. Can be used to filter
		587	screen output (e.g. underline urls or other useless stuff). Only lines
		588	that are being shown will be filtered, and, due to performance reasons,
		589	not always immediately.
		590
		591	The row number is always the topmost row of the line if the line spans
		592	multiple rows.
		593
		594	Please note that, if you change the line, then the hook might get called
		595	later with the already-modified line (e.g. if unrelated parts change), so
		596	you cannot just toggle rendition bits, but only set them.
176		597
177	=item on_refresh_begin $term	598	=item on_refresh_begin $term
178		599
179	Called just before the screen gets redrawn. Can be used for overlay	600	Called just before the screen gets redrawn. Can be used for overlay
180	or similar effects by modify terminal contents in refresh_begin, and	601	or similar effects by modify terminal contents in refresh_begin, and
…		…
183		604
184	=item on_refresh_end $term	605	=item on_refresh_end $term
185		606
186	Called just after the screen gets redrawn. See C<on_refresh_begin>.	607	Called just after the screen gets redrawn. See C<on_refresh_begin>.
187		608
188	=item on_keyboard_command $term, $string	609	=item on_user_command $term, $string
189		610
190	Called whenever the user presses a key combination that has a	611	Called whenever a user-configured event is being activated (e.g. via
191	C<perl:string> action bound to it (see description of the B<keysym>	612	a C<perl:string> action bound to a key, see description of the B<keysym>
192	resource in the @@RXVT_NAME@@(1) manpage).	613	resource in the @@RXVT_NAME@@(1) manpage).
193		614
		615	The event is simply the action string. This interface is assumed to change
		616	slightly in the future.
		617
		618	=item on_resize_all_windows $tern, $new_width, $new_height
		619
		620	Called just after the new window size has been calculated, but before
		621	windows are actually being resized or hints are being set. If this hook
		622	returns TRUE, setting of the window hints is being skipped.
		623
		624	=item on_x_event $term, $event
		625
		626	Called on every X event received on the vt window (and possibly other
		627	windows). Should only be used as a last resort. Most event structure
		628	members are not passed.
		629
		630	=item on_root_event $term, $event
		631
		632	Like C<on_x_event>, but is called for events on the root window.
		633
		634	=item on_focus_in $term
		635
		636	Called whenever the window gets the keyboard focus, before rxvt-unicode
		637	does focus in processing.
		638
		639	=item on_focus_out $term
		640
		641	Called whenever the window loses keyboard focus, before rxvt-unicode does
		642	focus out processing.
		643
		644	=item on_configure_notify $term, $event
		645
		646	=item on_property_notify $term, $event
		647
		648	=item on_key_press $term, $event, $keysym, $octets
		649
		650	=item on_key_release $term, $event, $keysym
		651
		652	=item on_button_press $term, $event
		653
		654	=item on_button_release $term, $event
		655
		656	=item on_motion_notify $term, $event
		657
		658	=item on_map_notify $term, $event
		659
		660	=item on_unmap_notify $term, $event
		661
		662	Called whenever the corresponding X event is received for the terminal If
		663	the hook returns true, then the even will be ignored by rxvt-unicode.
		664
		665	The event is a hash with most values as named by Xlib (see the XEvent
		666	manpage), with the additional members C<row> and C<col>, which are the
		667	(real, not screen-based) row and column under the mouse cursor.
		668
		669	C<on_key_press> additionally receives the string rxvt-unicode would
		670	output, if any, in locale-specific encoding.
		671
		672	subwindow.
		673
		674	=item on_client_message $term, $event
		675
		676	=item on_wm_protocols $term, $event
		677
		678	=item on_wm_delete_window $term, $event
		679
		680	Called when various types of ClientMessage events are received (all with
		681	format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
		682
194	=back	683	=back
195		684
		685	=cut
		686
		687	package urxvt;
		688
		689	use utf8;
		690	use strict;
		691	use Carp ();
		692	use Scalar::Util ();
		693	use List::Util ();
		694
		695	our $VERSION = 1;
		696	our $TERM;
		697	our @TERM_INIT;
		698	our @TERM_EXT;
		699	our @HOOKNAME;
		700	our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
		701	our %OPTION;
		702
		703	our $LIBDIR;
		704	our $RESNAME;
		705	our $RESCLASS;
		706	our $RXVTNAME;
		707
		708	our $NOCHAR = chr 0xffff;
		709
196	=head2 Variables in the C<urxvt> Package	710	=head2 Variables in the C<urxvt> Package
197		711
198	=over 4	712	=over 4
199		713
		714	=item $urxvt::LIBDIR
		715
		716	The rxvt-unicode library directory, where, among other things, the perl
		717	modules and scripts are stored.
		718
		719	=item $urxvt::RESCLASS, $urxvt::RESCLASS
		720
		721	The resource class and name rxvt-unicode uses to look up X resources.
		722
		723	=item $urxvt::RXVTNAME
		724
		725	The basename of the installed binaries, usually C<urxvt>.
		726
200	=item $urxvt::TERM	727	=item $urxvt::TERM
201		728
202	The current terminal. Whenever a callback/Hook is bein executed, this	729	The current terminal. This variable stores the current C<urxvt::term>
203	variable stores the current C<urxvt::term> object.	730	object, whenever a callback/hook is executing.
		731
		732	=item @urxvt::TERM_INIT
		733
		734	All code references in this array will be called as methods of the next newly
		735	created C<urxvt::term> object (during the C<on_init> phase). The array
		736	gets cleared before the code references that were in it are being executed,
		737	so references can push themselves onto it again if they so desire.
		738
		739	This complements to the perl-eval command line option, but gets executed
		740	first.
		741
		742	=item @urxvt::TERM_EXT
		743
		744	Works similar to C<@TERM_INIT>, but contains perl package/class names, which
		745	get registered as normal extensions after calling the hooks in C<@TERM_INIT>
		746	but before other extensions. Gets cleared just like C<@TERM_INIT>.
204		747
205	=back	748	=back
206		749
207	=head2 Functions in the C<urxvt> Package	750	=head2 Functions in the C<urxvt> Package
208		751
…		…
221	that calls this function.	764	that calls this function.
222		765
223	Using this function has the advantage that its output ends up in the	766	Using this function has the advantage that its output ends up in the
224	correct place, e.g. on stderr of the connecting urxvtc client.	767	correct place, e.g. on stderr of the connecting urxvtc client.
225		768
		769	Messages have a size limit of 1023 bytes currently.
		770
		771	=item @terms = urxvt::termlist
		772
		773	Returns all urxvt::term objects that exist in this process, regardless of
		774	whether they are started, being destroyed etc., so be careful. Only term
		775	objects that have perl extensions attached will be returned (because there
		776	is no urxvt::term objet associated with others).
		777
226	=item $time = urxvt::NOW	778	=item $time = urxvt::NOW
227		779
228	Returns the "current time" (as per the event loop).	780	Returns the "current time" (as per the event loop).
		781
		782	=item urxvt::CurrentTime
		783
		784	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
		785	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
		786	Button4Mask, Button5Mask, AnyModifier
		787
		788	=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
		789	ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
		790	PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
		791	Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
		792	KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
		793	ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
		794	FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
		795
		796	=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
		797	EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
		798	GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
		799	UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
		800	ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
		801	CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
		802	SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
		803
		804	Various constants for use in X calls and event processing.
229		805
230	=back	806	=back
231		807
232	=head2 RENDITION	808	=head2 RENDITION
233		809
…		…
260		836
261	=item $background = urxvt::GET_BASEBG $rend	837	=item $background = urxvt::GET_BASEBG $rend
262		838
263	Return the foreground/background colour index, respectively.	839	Return the foreground/background colour index, respectively.
264		840
265	=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)	841	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
266		842
267	=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)	843	=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
		844
		845	=item $rend = urxvt::SET_COLOR $rend, $new_fg, $new_bg
268		846
269	Replace the foreground/background colour in the rendition mask with the	847	Replace the foreground/background colour in the rendition mask with the
270	specified one.	848	specified one.
271		849
272	=item $value = urxvt::GET_CUSTOM ($rend)	850	=item $value = urxvt::GET_CUSTOM $rend
273		851
274	Return the "custom" value: Every rendition has 5 bits for use by	852	Return the "custom" value: Every rendition has 5 bits for use by
275	extensions. They can be set and changed as you like and are initially	853	extensions. They can be set and changed as you like and are initially
276	zero.	854	zero.
277		855
278	=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)	856	=item $rend = urxvt::SET_CUSTOM $rend, $new_value
279		857
280	Change the custom value.	858	Change the custom value.
281		859
282	=back	860	=back
283		861
284	=cut	862	=cut
285		863
286	package urxvt;
287
288	use strict;
289	use Scalar::Util ();
290
291	our $TERM;
292	our @HOOKNAME;
293	our $LIBDIR;
294
295	BEGIN {	864	BEGIN {
296	urxvt->bootstrap;
297
298	# overwrite perl's warn	865	# overwrite perl's warn
299	*CORE::GLOBAL::warn = sub {	866	*CORE::GLOBAL::warn = sub {
300	my $msg = join "", @_;	867	my $msg = join "", @_;
301	$msg .= "\n"	868	$msg .= "\n"
302	unless $msg =~ /\n$/;	869	unless $msg =~ /\n$/;
303	urxvt::warn ($msg);	870	urxvt::warn ($msg);
304	};	871	};
305	}	872	}
306		873
307	my @hook_count;	874	no warnings 'utf8';
		875
308	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};	876	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
309		877
310	sub verbose {	878	sub verbose {
311	my ($level, $msg) = @_;	879	my ($level, $msg) = @_;
312	warn "$msg\n" if $level <= $verbosity;	880	warn "$msg\n" if $level <= $verbosity;
313	}	881	}
314		882
315	# find on_xxx subs in the package and register them	883	my %extension_pkg;
316	# as hooks
317	sub register_package($) {
318	my ($pkg) = @_;
319
320	for my $htype (0.. $#HOOKNAME) {
321	my $name = $HOOKNAME[$htype];
322
323	my $ref = $pkg->can ("on_" . lc $name)
324	or next;
325
326	$TERM->{_hook}[$htype]{$pkg} = $ref;
327	$hook_count[$htype]++
328	or set_should_invoke $htype, 1;
329	}
330	}
331
332	my $script_pkg = "script0000";
333	my %script_pkg;
334		884
335	# load a single script into its own package, once only	885	# load a single script into its own package, once only
336	sub script_package($) {	886	sub extension_package($) {
337	my ($path) = @_;	887	my ($path) = @_;
338		888
339	$script_pkg{$path} ||= do {	889	$extension_pkg{$path} ||= do {
340	my $pkg = "urxvt::" . ($script_pkg++);	890	$path =~ /([^\/\\]+)$/;
		891	my $pkg = $1;
		892	$pkg =~ s/[^[:word:]]/_/g;
		893	$pkg = "urxvt::ext::$pkg";
341		894
342	verbose 3, "loading script '$path' into package '$pkg'";	895	verbose 3, "loading extension '$path' into package '$pkg'";
343		896
344	open my $fh, "<:raw", $path	897	open my $fh, "<:raw", $path
345	or die "$path: $!";	898	or die "$path: $!";
346		899
347	my $source = "package $pkg; use strict; use utf8;\n"	900	my $source =
		901	"package $pkg; use strict; use utf8; no warnings 'utf8';\n"
348	. "#line 1 \"$path\"\n{\n"	902	. "#line 1 \"$path\"\n{\n"
349	. (do { local $/; <$fh> })	903	. (do { local $/; <$fh> })
350	. "\n};\n1";	904	. "\n};\n1";
351		905
		906	eval $source
352	eval $source or die "$path: $@";	907	or die "$path: $@";
353		908
354	$pkg	909	$pkg
355	}	910	}
356	}	911	}
		912
		913	our $retval; # return value for urxvt
357		914
358	# called by the rxvt core	915	# called by the rxvt core
359	sub invoke {	916	sub invoke {
360	local $TERM = shift;	917	local $TERM = shift;
361	my $htype = shift;	918	my $htype = shift;
362		919
363	if ($htype == 0) { # INIT	920	if ($htype == 0) { # INIT
364	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");	921	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
		922
		923	my %ext_arg;
365		924
366	for my $ext (split /:/, $TERM->resource ("perl_ext")) {	925	{
		926	my @init = @TERM_INIT;
		927	@TERM_INIT = ();
		928	$_->($TERM) for @init;
		929	my @pkg = @TERM_EXT;
		930	@TERM_EXT = ();
		931	$TERM->register_package ($_) for @pkg;
		932	}
		933
		934	for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
		935	if ($_ eq "default") {
		936	$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
		937	} elsif (/^-(.*)$/) {
		938	delete $ext_arg{$1};
		939	} elsif (/^([^<]+)<(.*)>$/) {
		940	push @{ $ext_arg{$1} }, $2;
		941	} else {
		942	$ext_arg{$_} ||= [];
		943	}
		944	}
		945
		946	for my $ext (sort keys %ext_arg) {
367	my @files = grep -f $_, map "$_/$ext", @dirs;	947	my @files = grep -f $_, map "$_/$ext", @dirs;
368		948
369	if (@files) {	949	if (@files) {
370	register_package script_package $files[0];	950	$TERM->register_package (extension_package $files[0], $ext_arg{$ext});
371	} else {	951	} else {
372	warn "perl extension '$ext' not found in perl library search path\n";	952	warn "perl extension '$ext' not found in perl library search path\n";
373	}	953	}
374	}	954	}
375		955
376	} elsif ($htype == 1) { # DESTROY	956	eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval");
		957	warn $@ if $@;
		958	}
		959
		960	$retval = undef;
		961
377	if (my $hook = $TERM->{_hook}) {	962	if (my $cb = $TERM->{_hook}[$htype]) {
378	for my $htype (0..$#$hook) {	963	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
379	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }	964	if $verbosity >= 10;
380	or set_should_invoke $htype, 0;	965
		966	for my $pkg (keys %$cb) {
		967	my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg}, @_) };
		968	$retval ||= $retval_;
		969
		970	if ($@) {
		971	$TERM->ungrab; # better to lose the grab than the session
		972	warn $@;
381	}	973	}
382	}	974	}
		975
		976	verbose 11, "$HOOKNAME[$htype] returning <$retval>"
		977	if $verbosity >= 11;
383	}	978	}
384		979
385	my $cb = $TERM->{_hook}[$htype]	980	if ($htype == 1) { # DESTROY
386	or return;	981	# clear package objects
		982	%$_ = () for values %{ $TERM->{_pkg} };
387		983
388	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"	984	# clear package
389	if $verbosity >= 10;	985	%$TERM = ();
390
391	keys %$cb;
392
393	while (my ($pkg, $cb) = each %$cb) {
394	return 1
395	if $cb->(
396	$TERM->{$pkg} ||= do {
397	my $proxy = bless { }, urxvt::term::proxy::;
398	Scalar::Util::weaken ($proxy->{term} = $TERM);
399	$proxy
400	},
401	@_,
402	);
403	}	986	}
404		987
		988	$retval
		989	}
		990
		991	sub SET_COLOR($$$) {
		992	SET_BGCOLOR (SET_FGCOLOR ($_[0], $_[1]), $_[2])
		993	}
		994
		995	# urxvt::term::extension
		996
		997	package urxvt::term::extension;
		998
		999	sub enable {
		1000	my ($self, %hook) = @_;
		1001	my $pkg = $self->{_pkg};
		1002
		1003	while (my ($name, $cb) = each %hook) {
		1004	my $htype = $HOOKTYPE{uc $name};
		1005	defined $htype
		1006	or Carp::croak "unsupported hook type '$name'";
		1007
		1008	$self->set_should_invoke ($htype, +1)
		1009	unless exists $self->{term}{_hook}[$htype]{$pkg};
		1010
		1011	$self->{term}{_hook}[$htype]{$pkg} = $cb;
405	0	1012	}
406	}	1013	}
407		1014
408	sub urxvt::term::proxy::AUTOLOAD {	1015	sub disable {
409	$urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/	1016	my ($self, @hook) = @_;
		1017	my $pkg = $self->{_pkg};
		1018
		1019	for my $name (@hook) {
		1020	my $htype = $HOOKTYPE{uc $name};
		1021	defined $htype
		1022	or Carp::croak "unsupported hook type '$name'";
		1023
		1024	$self->set_should_invoke ($htype, -1)
		1025	if delete $self->{term}{_hook}[$htype]{$pkg};
		1026	}
		1027	}
		1028
		1029	our $AUTOLOAD;
		1030
		1031	sub AUTOLOAD {
		1032	$AUTOLOAD =~ /:([^:]+)$/
410	or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";	1033	or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
411		1034
412	eval qq{	1035	eval qq{
413	sub $urxvt::term::proxy::AUTOLOAD {	1036	sub $AUTOLOAD {
414	my \$proxy = shift;	1037	my \$proxy = shift;
415	\$proxy->{term}->$1 (\@_)	1038	\$proxy->{term}->$1 (\@_)
416	}	1039	}
417	1	1040	1
418	} or die "FATAL: unable to compile method forwarder: $@";	1041	} or die "FATAL: unable to compile method forwarder: $@";
419		1042
420	goto &$urxvt::term::proxy::AUTOLOAD;	1043	goto &$AUTOLOAD;
421	}	1044	}
		1045
		1046	sub DESTROY {
		1047	# nop
		1048	}
		1049
		1050	# urxvt::destroy_hook
		1051
		1052	sub urxvt::destroy_hook::DESTROY {
		1053	${$_[0]}->();
		1054	}
		1055
		1056	sub urxvt::destroy_hook(&) {
		1057	bless \shift, urxvt::destroy_hook::
		1058	}
		1059
		1060	package urxvt::anyevent;
		1061
		1062	=head2 The C<urxvt::anyevent> Class
		1063
		1064	The sole purpose of this class is to deliver an interface to the
		1065	C<AnyEvent> module - any module using it will work inside urxvt without
		1066	further programming. The only exception is that you cannot wait on
		1067	condition variables, but non-blocking condvar use is ok. What this means
		1068	is that you cannot use blocking APIs, but the non-blocking variant should
		1069	work.
		1070
		1071	=cut
		1072
		1073	our $VERSION = 1;
		1074
		1075	$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
		1076	push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
		1077
		1078	sub timer {
		1079	my ($class, %arg) = @_;
		1080
		1081	my $cb = $arg{cb};
		1082
		1083	urxvt::timer
		1084	->new
		1085	->start (urxvt::NOW + $arg{after})
		1086	->cb (sub {
		1087	$_[0]->stop; # need to cancel manually
		1088	$cb->();
		1089	})
		1090	}
		1091
		1092	sub io {
		1093	my ($class, %arg) = @_;
		1094
		1095	my $cb = $arg{cb};
		1096
		1097	bless [$arg{fh}, urxvt::iow
		1098	->new
		1099	->fd (fileno $arg{fh})
		1100	->events (($arg{poll} =~ /r/ ? 1 : 0)
		1101	| ($arg{poll} =~ /w/ ? 2 : 0))
		1102	->start
		1103	->cb (sub {
		1104	$cb->(($_[1] & 1 ? 'r' : '')
		1105	. ($_[1] & 2 ? 'w' : ''));
		1106	})],
		1107	urxvt::anyevent::
		1108	}
		1109
		1110	sub DESTROY {
		1111	$_[0][1]->stop;
		1112	}
		1113
		1114	sub condvar {
		1115	bless \my $flag, urxvt::anyevent::condvar::
		1116	}
		1117
		1118	sub urxvt::anyevent::condvar::broadcast {
		1119	${$_[0]}++;
		1120	}
		1121
		1122	sub urxvt::anyevent::condvar::wait {
		1123	unless (${$_[0]}) {
		1124	Carp::croak "AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API";
		1125	}
		1126	}
		1127
		1128	package urxvt::term;
422		1129
423	=head2 The C<urxvt::term> Class	1130	=head2 The C<urxvt::term> Class
424		1131
425	=over 4	1132	=over 4
		1133
		1134	=cut
		1135
		1136	# find on_xxx subs in the package and register them
		1137	# as hooks
		1138	sub register_package {
		1139	my ($self, $pkg, $argv) = @_;
		1140
		1141	no strict 'refs';
		1142
		1143	urxvt::verbose 6, "register package $pkg to $self";
		1144
		1145	@{"$pkg\::ISA"} = urxvt::term::extension::;
		1146
		1147	my $proxy = bless {
		1148	_pkg => $pkg,
		1149	argv => $argv,
		1150	}, $pkg;
		1151	Scalar::Util::weaken ($proxy->{term} = $self);
		1152
		1153	$self->{_pkg}{$pkg} = $proxy;
		1154
		1155	for my $name (@HOOKNAME) {
		1156	if (my $ref = $pkg->can ("on_" . lc $name)) {
		1157	$proxy->enable ($name => $ref);
		1158	}
		1159	}
		1160	}
		1161
		1162	=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
		1163
		1164	Creates a new terminal, very similar as if you had started it with system
		1165	C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
		1166	hash which defines the environment of the new terminal.
		1167
		1168	Croaks (and probably outputs an error message) if the new instance
		1169	couldn't be created. Returns C<undef> if the new instance didn't
		1170	initialise perl, and the terminal object otherwise. The C<init> and
		1171	C<start> hooks will be called before this call returns, and are free to
		1172	refer to global data (which is race free).
		1173
		1174	=cut
		1175
		1176	sub new {
		1177	my ($class, $env, @args) = @_;
		1178
		1179	$env or Carp::croak "environment hash missing in call to urxvt::term->new";
		1180	@args or Carp::croak "name argument missing in call to urxvt::term->new";
		1181
		1182	_new ([ map "$_=$env->{$_}", keys %$env ], \@args);
		1183	}
		1184
		1185	=item $term->destroy
		1186
		1187	Destroy the terminal object (close the window, free resources
		1188	etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
		1189	watchers (timers, io watchers) are still active.
		1190
		1191	=item $term->exec_async ($cmd[, @args])
		1192
		1193	Works like the combination of the C<fork>/C<exec> builtins, which executes
		1194	("starts") programs in the background. This function takes care of setting
		1195	the user environment before exec'ing the command (e.g. C<PATH>) and should
		1196	be preferred over explicit calls to C<exec> or C<system>.
		1197
		1198	Returns the pid of the subprocess or C<undef> on error.
		1199
		1200	=cut
		1201
		1202	sub exec_async {
		1203	my $self = shift;
		1204
		1205	my $pid = fork;
		1206
		1207	return $pid
		1208	if !defined $pid or $pid;
		1209
		1210	%ENV = %{ $self->env };
		1211
		1212	exec @_;
		1213	urxvt::_exit 255;
		1214	}
		1215
		1216	=item $isset = $term->option ($optval[, $set])
		1217
		1218	Returns true if the option specified by C<$optval> is enabled, and
		1219	optionally change it. All option values are stored by name in the hash
		1220	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
		1221
		1222	Here is a likely non-exhaustive list of option names, please see the
		1223	source file F</src/optinc.h> to see the actual list:
		1224
		1225	borderLess console cursorBlink cursorUnderline hold iconic insecure
		1226	intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
		1227	override-redirect pastableTabs pointerBlank reverseVideo scrollBar
		1228	scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
		1229	scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
		1230	transparent tripleclickwords utmpInhibit visualBell
426		1231
427	=item $value = $term->resource ($name[, $newval])	1232	=item $value = $term->resource ($name[, $newval])
428		1233
429	Returns the current resource value associated with a given name and	1234	Returns the current resource value associated with a given name and
430	optionally sets a new value. Setting values is most useful in the C<init>	1235	optionally sets a new value. Setting values is most useful in the C<init>
…		…
439	likely change).	1244	likely change).
440		1245
441	Please note that resource strings will currently only be freed when the	1246	Please note that resource strings will currently only be freed when the
442	terminal is destroyed, so changing options frequently will eat memory.	1247	terminal is destroyed, so changing options frequently will eat memory.
443		1248
444	Here is a a likely non-exhaustive list of resource names, not all of which	1249	Here is a likely non-exhaustive list of resource names, not all of which
445	are supported in every build, please see the source to see the actual	1250	are supported in every build, please see the source file F</src/rsinc.h>
446	list:	1251	to see the actual list:
447		1252
448	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont	1253	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
449	borderLess color cursorBlink cursorUnderline cutchars delete_key	1254	borderLess color cursorBlink cursorUnderline cutchars delete_key
450	display_name embed ext_bwidth fade font geometry hold iconName	1255	display_name embed ext_bwidth fade font geometry hold iconName
451	imFont imLocale inputMethod insecure int_bwidth intensityStyles	1256	imFont imLocale inputMethod insecure int_bwidth intensityStyles
452	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier	1257	italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
453	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext	1258	mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
454	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd	1259	perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
455	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating	1260	preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
456	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput	1261	scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
457	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle	1262	scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
458	shade term_name title transparent transparent_all tripleclickwords	1263	secondaryScreen secondaryScroll selectstyle shade term_name title
459	utmpInhibit visualBell	1264	transient_for transparent transparent_all tripleclickwords utmpInhibit
		1265	visualBell
460		1266
461	=cut	1267	=cut
462		1268
463	sub urxvt::term::resource($$;$) {	1269	sub resource($$;$) {
464	my ($self, $name) = (shift, shift);	1270	my ($self, $name) = (shift, shift);
465	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);	1271	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
466	goto &urxvt::term::_resource;	1272	&urxvt::term::_resource
467	}	1273	}
		1274
		1275	=item $value = $term->x_resource ($pattern)
		1276
		1277	Returns the X-Resource for the given pattern, excluding the program or
		1278	class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
		1279	same value as used by this instance of rxvt-unicode. Returns C<undef> if no
		1280	resource with that pattern exists.
		1281
		1282	This method should only be called during the C<on_start> hook, as there is
		1283	only one resource database per display, and later invocations might return
		1284	the wrong resources.
		1285
		1286	=item $success = $term->parse_keysym ($keysym_spec, $command_string)
		1287
		1288	Adds a keymap translation exactly as specified via a resource. See the
		1289	C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
		1290
		1291	=item $rend = $term->rstyle ([$new_rstyle])
		1292
		1293	Return and optionally change the current rendition. Text that is output by
		1294	the terminal application will use this style.
		1295
		1296	=item ($row, $col) = $term->screen_cur ([$row, $col])
		1297
		1298	Return the current coordinates of the text cursor position and optionally
		1299	set it (which is usually bad as applications don't expect that).
468		1300
469	=item ($row, $col) = $term->selection_mark ([$row, $col])	1301	=item ($row, $col) = $term->selection_mark ([$row, $col])
470		1302
471	=item ($row, $col) = $term->selection_beg ([$row, $col])	1303	=item ($row, $col) = $term->selection_beg ([$row, $col])
472		1304
473	=item ($row, $col) = $term->selection_end ([$row, $col])	1305	=item ($row, $col) = $term->selection_end ([$row, $col])
474		1306
475	Return the current values of the selection mark, begin or end positions,	1307	Return the current values of the selection mark, begin or end positions,
476	and optionally set them to new values.	1308	and optionally set them to new values.
477		1309
		1310	=item $term->selection_make ($eventtime[, $rectangular])
		1311
		1312	Tries to make a selection as set by C<selection_beg> and
		1313	C<selection_end>. If C<$rectangular> is true (default: false), a
		1314	rectangular selection will be made. This is the prefered function to make
		1315	a selection.
		1316
478	=item $success = $term->selection_grab ($eventtime)	1317	=item $success = $term->selection_grab ($eventtime)
479		1318
480	Try to request the primary selection from the server (for example, as set	1319	Try to request the primary selection text from the server (for example, as
481	by the next method).	1320	set by the next method). No visual feedback will be given. This function
		1321	is mostly useful from within C<on_sel_grab> hooks.
482		1322
483	=item $oldtext = $term->selection ([$newtext])	1323	=item $oldtext = $term->selection ([$newtext])
484		1324
485	Return the current selection text and optionally replace it by C<$newtext>.	1325	Return the current selection text and optionally replace it by C<$newtext>.
486		1326
487	#=item $term->overlay ($x, $y, $text)	1327	=item $term->overlay_simple ($x, $y, $text)
488	#	1328
489	#Create a simple multi-line overlay box. See the next method for details.	1329	Create a simple multi-line overlay box. See the next method for details.
490	#	1330
491	#=cut	1331	=cut
492		1332
493	sub urxvt::term::scr_overlay {	1333	sub overlay_simple {
494	die;
495	my ($self, $x, $y, $text) = @_;	1334	my ($self, $x, $y, $text) = @_;
496		1335
497	my @lines = split /\n/, $text;	1336	my @lines = split /\n/, $text;
498		1337
499	my $w = 0;	1338	my $w = List::Util::max map $self->strwidth ($_), @lines;
500	for (map $self->strwidth ($_), @lines) {
501	$w = $_ if $w < $_;
502	}
503		1339
504	$self->scr_overlay_new ($x, $y, $w, scalar @lines);	1340	my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
505	$self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;	1341	$overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
		1342
		1343	$overlay
506	}	1344	}
507		1345
508	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])	1346	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
509		1347
510	Create a new (empty) overlay at the given position with the given	1348	Create a new (empty) overlay at the given position with the given
…		…
538		1376
539	If hidden, display the overlay again.	1377	If hidden, display the overlay again.
540		1378
541	=back	1379	=back
542		1380
		1381	=item $popup = $term->popup ($event)
		1382
		1383	Creates a new C<urxvt::popup> object that implements a popup menu. The
		1384	C<$event> I<must> be the event causing the menu to pop up (a button event,
		1385	currently).
		1386
		1387	=cut
		1388
		1389	sub popup {
		1390	my ($self, $event) = @_;
		1391
		1392	$self->grab ($event->{time}, 1)
		1393	or return;
		1394
		1395	my $popup = bless {
		1396	term => $self,
		1397	event => $event,
		1398	}, urxvt::popup::;
		1399
		1400	Scalar::Util::weaken $popup->{term};
		1401
		1402	$self->{_destroy}{$popup} = urxvt::destroy_hook { $popup->{popup}->destroy };
		1403	Scalar::Util::weaken $self->{_destroy}{$popup};
		1404
		1405	$popup
		1406	}
		1407
543	=item $cellwidth = $term->strwidth $string	1408	=item $cellwidth = $term->strwidth ($string)
544		1409
545	Returns the number of screen-cells this string would need. Correctly	1410	Returns the number of screen-cells this string would need. Correctly
546	accounts for wide and combining characters.	1411	accounts for wide and combining characters.
547		1412
548	=item $octets = $term->locale_encode $string	1413	=item $octets = $term->locale_encode ($string)
549		1414
550	Convert the given text string into the corresponding locale encoding.	1415	Convert the given text string into the corresponding locale encoding.
551		1416
552	=item $string = $term->locale_decode $octets	1417	=item $string = $term->locale_decode ($octets)
553		1418
554	Convert the given locale-encoded octets into a perl string.	1419	Convert the given locale-encoded octets into a perl string.
		1420
		1421	=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
		1422
		1423	XORs the rendition values in the given span with the provided value
		1424	(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
		1425	refresh hooks to provide effects similar to the selection.
		1426
		1427	=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
		1428
		1429	Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
		1430	whitespace will additionally be xored with the C<$rstyle2>, which defaults
		1431	to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
		1432	it instead. Both styles I<MUST NOT> contain font styles.
		1433
		1434	=item $term->scr_bell
		1435
		1436	Ring the bell!
		1437
		1438	=item $term->scr_add_lines ($string)
		1439
		1440	Write the given text string to the screen, as if output by the application
		1441	running inside the terminal. It may not contain command sequences (escape
		1442	codes), but is free to use line feeds, carriage returns and tabs. The
		1443	string is a normal text string, not in locale-dependent encoding.
		1444
		1445	Normally its not a good idea to use this function, as programs might be
		1446	confused by changes in cursor position or scrolling. Its useful inside a
		1447	C<on_add_lines> hook, though.
		1448
		1449	=item $term->scr_change_screen ($screen)
		1450
		1451	Switch to given screen - 0 primary, 1 secondary.
		1452
		1453	=item $term->cmd_parse ($octets)
		1454
		1455	Similar to C<scr_add_lines>, but the argument must be in the
		1456	locale-specific encoding of the terminal and can contain command sequences
		1457	(escape codes) that will be interpreted.
555		1458
556	=item $term->tt_write ($octets)	1459	=item $term->tt_write ($octets)
557		1460
558	Write the octets given in C<$data> to the tty (i.e. as program input). To	1461	Write the octets given in C<$data> to the tty (i.e. as program input). To
559	pass characters instead of octets, you should convert your strings first	1462	pass characters instead of octets, you should convert your strings first
560	to the locale-specific encoding using C<< $term->locale_encode >>.	1463	to the locale-specific encoding using C<< $term->locale_encode >>.
561		1464
		1465	=item $old_events = $term->pty_ev_events ([$new_events])
		1466
		1467	Replaces the event mask of the pty watcher by the given event mask. Can
		1468	be used to suppress input and output handling to the pty/tty. See the
		1469	description of C<< urxvt::timer->events >>. Make sure to always restore
		1470	the previous value.
		1471
		1472	=item $fd = $term->pty_fd
		1473
		1474	Returns the master file descriptor for the pty in use, or C<-1> if no pty
		1475	is used.
		1476
		1477	=item $windowid = $term->parent
		1478
		1479	Return the window id of the toplevel window.
		1480
		1481	=item $windowid = $term->vt
		1482
		1483	Return the window id of the terminal window.
		1484
		1485	=item $term->vt_emask_add ($x_event_mask)
		1486
		1487	Adds the specified events to the vt event mask. Useful e.g. when you want
		1488	to receive pointer events all the times:
		1489
		1490	$term->vt_emask_add (urxvt::PointerMotionMask);
		1491
		1492	=item $term->focus_in
		1493
		1494	=item $term->focus_out
		1495
		1496	=item $term->key_press ($state, $keycode[, $time])
		1497
		1498	=item $term->key_release ($state, $keycode[, $time])
		1499
		1500	Deliver various fake events to to terminal.
		1501
		1502	=item $window_width = $term->width
		1503
		1504	=item $window_height = $term->height
		1505
		1506	=item $font_width = $term->fwidth
		1507
		1508	=item $font_height = $term->fheight
		1509
		1510	=item $font_ascent = $term->fbase
		1511
562	=item $nrow = $term->nrow	1512	=item $terminal_rows = $term->nrow
563		1513
564	=item $ncol = $term->ncol	1514	=item $terminal_columns = $term->ncol
565		1515
566	Return the number of rows/columns of the terminal window (i.e. as	1516	=item $has_focus = $term->focus
567	specified by C<-geometry>, excluding any scrollback).
568		1517
		1518	=item $is_mapped = $term->mapped
		1519
		1520	=item $max_scrollback = $term->saveLines
		1521
		1522	=item $nrow_plus_saveLines = $term->total_rows
		1523
		1524	=item $topmost_scrollback_row = $term->top_row
		1525
		1526	Return various integers describing terminal characteristics.
		1527
		1528	=item $x_display = $term->display_id
		1529
		1530	Return the DISPLAY used by rxvt-unicode.
		1531
		1532	=item $lc_ctype = $term->locale
		1533
		1534	Returns the LC_CTYPE category string used by this rxvt-unicode.
		1535
569	=item $nsaved = $term->nsaved	1536	=item $env = $term->env
570		1537
571	Returns the number of lines in the scrollback buffer.	1538	Returns a copy of the environment in effect for the terminal as a hashref
		1539	similar to C<\%ENV>.
		1540
		1541	=item @envv = $term->envv
		1542
		1543	Returns the environment as array of strings of the form C<VAR=VALUE>.
		1544
		1545	=item @argv = $term->argv
		1546
		1547	Return the argument vector as this terminal, similar to @ARGV, but
		1548	includes the program name as first element.
		1549
		1550	=cut
		1551
		1552	sub env {
		1553	+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), $_[0]->envv }
		1554	}
		1555
		1556	=item $modifiermask = $term->ModLevel3Mask
		1557
		1558	=item $modifiermask = $term->ModMetaMask
		1559
		1560	=item $modifiermask = $term->ModNumLockMask
		1561
		1562	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
		1563	AltGr), the meta key (often Alt) and the num lock key, if applicable.
		1564
		1565	=item $screen = $term->current_screen
		1566
		1567	Returns the currently displayed screen (0 primary, 1 secondary).
		1568
		1569	=item $cursor_is_hidden = $term->hidden_cursor
		1570
		1571	Returns whether the cursor is currently hidden or not.
572		1572
573	=item $view_start = $term->view_start ([$newvalue])	1573	=item $view_start = $term->view_start ([$newvalue])
574		1574
575	Returns the negative row number of the topmost line. Minimum value is	1575	Returns the row number of the topmost displayed line. Maximum value is
576	C<0>, which displays the normal terminal contents. Larger values scroll	1576	C<0>, which displays the normal terminal contents. Lower values scroll
577	this many lines into the scrollback buffer.	1577	this many lines into the scrollback buffer.
578		1578
579	=item $term->want_refresh	1579	=item $term->want_refresh
580		1580
581	Requests a screen refresh. At the next opportunity, rxvt-unicode will	1581	Requests a screen refresh. At the next opportunity, rxvt-unicode will
…		…
596	line, starting at column C<$start_col> (default C<0>), which is useful	1596	line, starting at column C<$start_col> (default C<0>), which is useful
597	to replace only parts of a line. The font index in the rendition will	1597	to replace only parts of a line. The font index in the rendition will
598	automatically be updated.	1598	automatically be updated.
599		1599
600	C<$text> is in a special encoding: tabs and wide characters that use more	1600	C<$text> is in a special encoding: tabs and wide characters that use more
601	than one cell when displayed are padded with urxvt::NOCHAR characters	1601	than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
602	(C<chr 65535>). Characters with combining characters and other characters	1602	characters. Characters with combining characters and other characters that
603	that do not fit into the normal tetx encoding will be replaced with	1603	do not fit into the normal tetx encoding will be replaced with characters
604	characters in the private use area.	1604	in the private use area.
605		1605
606	You have to obey this encoding when changing text. The advantage is	1606	You have to obey this encoding when changing text. The advantage is
607	that C<substr> and similar functions work on screen cells and not on	1607	that C<substr> and similar functions work on screen cells and not on
608	characters.	1608	characters.
609		1609
…		…
639	about the logical line that row C<$row_number> is part of. It supports the	1639	about the logical line that row C<$row_number> is part of. It supports the
640	following methods:	1640	following methods:
641		1641
642	=over 4	1642	=over 4
643		1643
644	=item $text = $line->t	1644	=item $text = $line->t ([$new_text])
645		1645
646	Returns the full text of the line, similar to C<ROW_t>	1646	Returns or replaces the full text of the line, similar to C<ROW_t>
647		1647
648	=item $rend = $line->r	1648	=item $rend = $line->r ([$new_rend])
649		1649
650	Returns the full rendition array of the line, similar to C<ROW_r>	1650	Returns or replaces the full rendition array of the line, similar to C<ROW_r>
651		1651
652	=item $length = $line->l	1652	=item $length = $line->l
653		1653
654	Returns the length of the line in cells, similar to C<ROW_l>.	1654	Returns the length of the line in cells, similar to C<ROW_l>.
655		1655
…		…
660	Return the row number of the first/last row of the line, respectively.	1660	Return the row number of the first/last row of the line, respectively.
661		1661
662	=item $offset = $line->offset_of ($row, $col)	1662	=item $offset = $line->offset_of ($row, $col)
663		1663
664	Returns the character offset of the given row|col pair within the logical	1664	Returns the character offset of the given row|col pair within the logical
665	line.	1665	line. Works for rows outside the line, too, and returns corresponding
		1666	offsets outside the string.
666		1667
667	=item ($row, $col) = $line->coord_of ($offset)	1668	=item ($row, $col) = $line->coord_of ($offset)
668		1669
669	Translates a string offset into terminal coordinates again.	1670	Translates a string offset into terminal coordinates again.
670		1671
671	=back	1672	=back
672		1673
673	=cut	1674	=cut
674		1675
675	sub urxvt::term::line {	1676	sub line {
676	my ($self, $row) = @_;	1677	my ($self, $row) = @_;
677		1678
678	my $maxrow = $self->nrow - 1;	1679	my $maxrow = $self->nrow - 1;
679		1680
680	my ($beg, $end) = ($row, $row);	1681	my ($beg, $end) = ($row, $row);
…		…
684		1685
685	bless {	1686	bless {
686	term => $self,	1687	term => $self,
687	beg => $beg,	1688	beg => $beg,
688	end => $end,	1689	end => $end,
		1690	ncol => $self->ncol,
689	len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),	1691	len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),
690	}, urxvt::line::	1692	}, urxvt::line::
691	}	1693	}
692		1694
693	sub urxvt::line::t {	1695	sub urxvt::line::t {
694	my ($self) = @_;	1696	my ($self) = @_;
695		1697
		1698	if (@_ > 1)
		1699	{
		1700	$self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
		1701	for $self->{beg} .. $self->{end};
		1702	}
		1703
		1704	defined wantarray &&
696	substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),	1705	substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),
697	0, $self->{len}	1706	0, $self->{len}
698	}	1707	}
699		1708
700	sub urxvt::line::r {	1709	sub urxvt::line::r {
701	my ($self) = @_;	1710	my ($self) = @_;
702		1711
		1712	if (@_ > 1)
		1713	{
		1714	$self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
		1715	for $self->{beg} .. $self->{end};
		1716	}
		1717
		1718	if (defined wantarray) {
703	my $rend = [	1719	my $rend = [
704	map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}	1720	map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}
705	];	1721	];
706	$#$rend = $self->{len} - 1;	1722	$#$rend = $self->{len} - 1;
707	$rend	1723	return $rend;
		1724	}
		1725
		1726	()
708	}	1727	}
709		1728
710	sub urxvt::line::beg { $_[0]{beg} }	1729	sub urxvt::line::beg { $_[0]{beg} }
711	sub urxvt::line::end { $_[0]{end} }	1730	sub urxvt::line::end { $_[0]{end} }
712	sub urxvt::line::l { $_[0]{len} }	1731	sub urxvt::line::l { $_[0]{len} }
713		1732
714	sub urxvt::line::offset_of {	1733	sub urxvt::line::offset_of {
715	my ($self, $row, $col) = @_;	1734	my ($self, $row, $col) = @_;
716		1735
717	($row - $self->{beg}) * $self->{term}->ncol + $col	1736	($row - $self->{beg}) * $self->{ncol} + $col
718	}	1737	}
719		1738
720	sub urxvt::line::coord_of {	1739	sub urxvt::line::coord_of {
721	my ($self, $offset) = @_;	1740	my ($self, $offset) = @_;
722		1741
723	use integer;	1742	use integer;
724		1743
725	(	1744	(
726	$offset / $self->{term}->ncol + $self->{beg},	1745	$offset / $self->{ncol} + $self->{beg},
727	$offset % $self->{term}->ncol	1746	$offset % $self->{ncol}
728	)	1747	)
729	}	1748	}
730		1749
731	=item ($row, $col) = $line->coord_of ($offset)
732	=item $text = $term->special_encode $string	1750	=item $text = $term->special_encode $string
733		1751
734	Converts a perl string into the special encoding used by rxvt-unicode,	1752	Converts a perl string into the special encoding used by rxvt-unicode,
735	where one character corresponds to one screen cell. See	1753	where one character corresponds to one screen cell. See
736	C<< $term->ROW_t >> for details.	1754	C<< $term->ROW_t >> for details.
737		1755
738	=item $string = $term->special_decode $text	1756	=item $string = $term->special_decode $text
739		1757
740	Converts rxvt-unicodes text reprsentation into a perl string. See	1758	Converts rxvt-unicodes text representation into a perl string. See
741	C<< $term->ROW_t >> for details.	1759	C<< $term->ROW_t >> for details.
742		1760
		1761	=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
		1762
		1763	=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
		1764
		1765	Register/unregister a synchronous button grab. See the XGrabButton
		1766	manpage.
		1767
		1768	=item $success = $term->grab ($eventtime[, $sync])
		1769
		1770	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
		1771	synchronous (C<$sync> is true). Also remembers the grab timestamp.
		1772
		1773	=item $term->allow_events_async
		1774
		1775	Calls XAllowEvents with AsyncBoth for the most recent grab.
		1776
		1777	=item $term->allow_events_sync
		1778
		1779	Calls XAllowEvents with SyncBoth for the most recent grab.
		1780
		1781	=item $term->allow_events_replay
		1782
		1783	Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
		1784	recent grab.
		1785
		1786	=item $term->ungrab
		1787
		1788	Calls XUngrab for the most recent grab. Is called automatically on
		1789	evaluation errors, as it is better to lose the grab in the error case as
		1790	the session.
		1791
		1792	=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
		1793
		1794	=item $atom_name = $term->XGetAtomName ($atom)
		1795
		1796	=item @atoms = $term->XListProperties ($window)
		1797
		1798	=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
		1799
		1800	=item $term->XChangeWindowProperty ($window, $property, $type, $format, $octets)
		1801
		1802	=item $term->XDeleteProperty ($window, $property)
		1803
		1804	=item $window = $term->DefaultRootWindow
		1805
		1806	=item $term->XReparentWindow ($window, $parent, [$x, $y])
		1807
		1808	=item $term->XMapWindow ($window)
		1809
		1810	=item $term->XUnmapWindow ($window)
		1811
		1812	=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
		1813
		1814	=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
		1815
		1816	=item $term->XChangeInput ($window, $add_events[, $del_events])
		1817
		1818	Various X or X-related functions. The C<$term> object only serves as
		1819	the source of the display, otherwise those functions map more-or-less
		1820	directory onto the X functions of the same name.
		1821
743	=back	1822	=back
		1823
		1824	=cut
		1825
		1826	package urxvt::popup;
		1827
		1828	=head2 The C<urxvt::popup> Class
		1829
		1830	=over 4
		1831
		1832	=cut
		1833
		1834	sub add_item {
		1835	my ($self, $item) = @_;
		1836
		1837	$item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal};
		1838	$item->{rend}{hover} = "\x1b[0;30;46m" unless exists $item->{rend}{hover};
		1839	$item->{rend}{active} = "\x1b[m" unless exists $item->{rend}{active};
		1840
		1841	$item->{render} ||= sub { $_[0]{text} };
		1842
		1843	push @{ $self->{item} }, $item;
		1844	}
		1845
		1846	=item $popup->add_title ($title)
		1847
		1848	Adds a non-clickable title to the popup.
		1849
		1850	=cut
		1851
		1852	sub add_title {
		1853	my ($self, $title) = @_;
		1854
		1855	$self->add_item ({
		1856	rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
		1857	text => $title,
		1858	activate => sub { },
		1859	});
		1860	}
		1861
		1862	=item $popup->add_separator ([$sepchr])
		1863
		1864	Creates a separator, optionally using the character given as C<$sepchr>.
		1865
		1866	=cut
		1867
		1868	sub add_separator {
		1869	my ($self, $sep) = @_;
		1870
		1871	$sep ||= "=";
		1872
		1873	$self->add_item ({
		1874	rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
		1875	text => "",
		1876	render => sub { $sep x $self->{term}->ncol },
		1877	activate => sub { },
		1878	});
		1879	}
		1880
		1881	=item $popup->add_button ($text, $cb)
		1882
		1883	Adds a clickable button to the popup. C<$cb> is called whenever it is
		1884	selected.
		1885
		1886	=cut
		1887
		1888	sub add_button {
		1889	my ($self, $text, $cb) = @_;
		1890
		1891	$self->add_item ({ type => "button", text => $text, activate => $cb});
		1892	}
		1893
		1894	=item $popup->add_toggle ($text, $initial_value, $cb)
		1895
		1896	Adds a toggle/checkbox item to the popup. The callback gets called
		1897	whenever it gets toggled, with a boolean indicating its new value as its
		1898	first argument.
		1899
		1900	=cut
		1901
		1902	sub add_toggle {
		1903	my ($self, $text, $value, $cb) = @_;
		1904
		1905	my $item; $item = {
		1906	type => "button",
		1907	text => " $text",
		1908	value => $value,
		1909	render => sub { ($_[0]{value} ? "* " : " ") . $text },
		1910	activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
		1911	};
		1912
		1913	$self->add_item ($item);
		1914	}
		1915
		1916	=item $popup->show
		1917
		1918	Displays the popup (which is initially hidden).
		1919
		1920	=cut
		1921
		1922	sub show {
		1923	my ($self) = @_;
		1924
		1925	local $urxvt::popup::self = $self;
		1926
		1927	my $env = $self->{term}->env;
		1928	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
		1929	delete $env->{LC_ALL};
		1930	$env->{LC_CTYPE} = $self->{term}->locale;
		1931
		1932	urxvt::term->new ($env, "popup",
		1933	"--perl-lib" => "", "--perl-ext-common" => "",
		1934	"-pty-fd" => -1, "-sl" => 0,
		1935	"-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
		1936	"--transient-for" => $self->{term}->parent,
		1937	"-display" => $self->{term}->display_id,
		1938	"-pe" => "urxvt-popup")
		1939	or die "unable to create popup window\n";
		1940	}
		1941
		1942	sub DESTROY {
		1943	my ($self) = @_;
		1944
		1945	delete $self->{term}{_destroy}{$self};
		1946	$self->{term}->ungrab;
		1947	}
		1948
		1949	=back
		1950
		1951	=cut
		1952
		1953	package urxvt::watcher;
		1954
		1955	@urxvt::timer::ISA = __PACKAGE__;
		1956	@urxvt::iow::ISA = __PACKAGE__;
		1957	@urxvt::pw::ISA = __PACKAGE__;
		1958	@urxvt::iw::ISA = __PACKAGE__;
744		1959
745	=head2 The C<urxvt::timer> Class	1960	=head2 The C<urxvt::timer> Class
746		1961
747	This class implements timer watchers/events. Time is represented as a	1962	This class implements timer watchers/events. Time is represented as a
748	fractional number of seconds since the epoch. Example:	1963	fractional number of seconds since the epoch. Example:
…		…
787		2002
788	=item $timer = $timer->start ($tstamp)	2003	=item $timer = $timer->start ($tstamp)
789		2004
790	Set the event trigger time to C<$tstamp> and start the timer.	2005	Set the event trigger time to C<$tstamp> and start the timer.
791		2006
		2007	=item $timer = $timer->after ($delay)
		2008
		2009	Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
		2010
792	=item $timer = $timer->stop	2011	=item $timer = $timer->stop
793		2012
794	Stop the timer.	2013	Stop the timer.
795		2014
796	=back	2015	=back
…		…
801		2020
802	$term->{socket} = ...	2021	$term->{socket} = ...
803	$term->{iow} = urxvt::iow	2022	$term->{iow} = urxvt::iow
804	->new	2023	->new
805	->fd (fileno $term->{socket})	2024	->fd (fileno $term->{socket})
806	->events (1) # wait for read data	2025	->events (urxvt::EVENT_READ)
807	->start	2026	->start
808	->cb (sub {	2027	->cb (sub {
809	my ($iow, $revents) = @_;	2028	my ($iow, $revents) = @_;
810	# $revents must be 1 here, no need to check	2029	# $revents must be 1 here, no need to check
811	sysread $term->{socket}, my $buf, 8192	2030	sysread $term->{socket}, my $buf, 8192
…		…
824	Set the callback to be called when io events are triggered. C<$reventmask>	2043	Set the callback to be called when io events are triggered. C<$reventmask>
825	is a bitset as described in the C<events> method.	2044	is a bitset as described in the C<events> method.
826		2045
827	=item $iow = $iow->fd ($fd)	2046	=item $iow = $iow->fd ($fd)
828		2047
829	Set the filedescriptor (not handle) to watch.	2048	Set the file descriptor (not handle) to watch.
830		2049
831	=item $iow = $iow->events ($eventmask)	2050	=item $iow = $iow->events ($eventmask)
832		2051
833	Set the event mask to watch. Bit #0 (value C<1>) enables watching for read	2052	Set the event mask to watch. The only allowed values are
834	data, Bit #1 (value C<2>) enables watching for write data.	2053	C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed
		2054	together, or C<urxvt::EVENT_NONE>.
835		2055
836	=item $iow = $iow->start	2056	=item $iow = $iow->start
837		2057
838	Start watching for requested events on the given handle.	2058	Start watching for requested events on the given handle.
839		2059
840	=item $iow = $iow->stop	2060	=item $iow = $iow->stop
841		2061
842	Stop watching for events on the given filehandle.	2062	Stop watching for events on the given file handle.
		2063
		2064	=back
		2065
		2066	=head2 The C<urxvt::iw> Class
		2067
		2068	This class implements idle watchers, that get called automatically when
		2069	the process is idle. They should return as fast as possible, after doing
		2070	some useful work.
		2071
		2072	=over 4
		2073
		2074	=item $iw = new urxvt::iw
		2075
		2076	Create a new idle watcher object in stopped state.
		2077
		2078	=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
		2079
		2080	Set the callback to be called when the watcher triggers.
		2081
		2082	=item $timer = $timer->start
		2083
		2084	Start the watcher.
		2085
		2086	=item $timer = $timer->stop
		2087
		2088	Stop the watcher.
		2089
		2090	=back
		2091
		2092	=head2 The C<urxvt::pw> Class
		2093
		2094	This class implements process watchers. They create an event whenever a
		2095	process exits, after which they stop automatically.
		2096
		2097	my $pid = fork;
		2098	...
		2099	$term->{pw} = urxvt::pw
		2100	->new
		2101	->start ($pid)
		2102	->cb (sub {
		2103	my ($pw, $exit_status) = @_;
		2104	...
		2105	});
		2106
		2107	=over 4
		2108
		2109	=item $pw = new urxvt::pw
		2110
		2111	Create a new process watcher in stopped state.
		2112
		2113	=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
		2114
		2115	Set the callback to be called when the timer triggers.
		2116
		2117	=item $pw = $timer->start ($pid)
		2118
		2119	Tells the watcher to start watching for process C<$pid>.
		2120
		2121	=item $pw = $pw->stop
		2122
		2123	Stop the watcher.
843		2124
844	=back	2125	=back
845		2126
846	=head1 ENVIRONMENT	2127	=head1 ENVIRONMENT
847		2128
…		…
850	This variable controls the verbosity level of the perl extension. Higher	2131	This variable controls the verbosity level of the perl extension. Higher
851	numbers indicate more verbose output.	2132	numbers indicate more verbose output.
852		2133
853	=over 4	2134	=over 4
854		2135
855	=item 0 - only fatal messages	2136	=item == 0 - fatal messages
856		2137
857	=item 3 - script loading and management	2138	=item >= 3 - script loading and management
858		2139
859	=item 10 - all events received	2140	=item >=10 - all called hooks
		2141
		2142	=item >=11 - hook return values
860		2143
861	=back	2144	=back
862		2145
863	=head1 AUTHOR	2146	=head1 AUTHOR
864		2147

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