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Revision 1.20 by root, Tue Jan 3 04:18:47 2006 UTC vs.
Revision 1.174 by root, Sat May 30 08:47:07 2009 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	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	Miscellaneous selection modifications.	51	(More) intelligent selection. This extension tries to be more intelligent
		52	when the user extends selections (double-click and further clicks). Right
		53	now, it tries to select words, urls and complete shell-quoted
		54	arguments, which is very convenient, too, if your F<ls> supports
		55	C<--quoting-style=shell>.
		56
		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:
45		86
46	=over 4	87	=over 4
47		88
48	=item rot13	89	=item rot13
49		90
…		…
51		92
52	URxvt.keysym.C-M-r: perl:selection:rot13	93	URxvt.keysym.C-M-r: perl:selection:rot13
53		94
54	=back	95	=back
55		96
		97	=item option-popup (enabled by default)
		98
		99	Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at
		100	runtime.
		101
		102	Other extensions can extend this popup menu by pushing a code reference
		103	onto C<@{ $term->{option_popup_hook} }>, which gets called whenever the
		104	popup is being displayed.
		105
		106	Its sole argument is the popup menu, which can be modified. It should
		107	either return nothing or a string, the initial boolean value and a code
		108	reference. The string will be used as button text and the code reference
		109	will be called when the toggle changes, with the new boolean value as
		110	first argument.
		111
		112	The following will add an entry C<myoption> that changes
		113	C<< $self->{myoption} >>:
		114
		115	push @{ $self->{term}{option_popup_hook} }, sub {
		116	("my option" => $myoption, sub { $self->{myoption} = $_[0] })
		117	};
		118
		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
		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 from the keyboard.
		265	Simply bind a keysym to "perl:matcher" as seen in the example below.
		266
		267	Example configuration:
		268
		269	URxvt.perl-ext: default,matcher
		270	URxvt.urlLauncher: sensible-browser
		271	URxvt.keysym.C-Delete: perl:matcher
		272	URxvt.matcher.button: 1
		273	URxvt.matcher.pattern.1: \\bwww\\.[\\w-]+\\.[\\w./?&@#-]*[\\w/-]
		274	URxvt.matcher.pattern.2: \\B(/\\S+?):(\\d+)(?=:|$)
		275	URxvt.matcher.launcher.2: gvim +$2 $1
		276
		277	=item xim-onthespot
		278
		279	This (experimental) perl extension implements OnTheSpot editing. It does
		280	not work perfectly, and some input methods don't seem to work well with
		281	OnTheSpot editing in general, but it seems to work at least for SCIM and
		282	kinput2.
		283
		284	You enable it by specifying this extension and a preedit style of
		285	C<OnTheSpot>, i.e.:
		286
		287	@@RXVT_NAME@@ -pt OnTheSpot -pe xim-onthespot
		288
		289	=item kuake<hotkey>
		290
		291	A very primitive quake-console-like extension. It was inspired by a
		292	description of how the programs C<kuake> and C<yakuake> work: Whenever the
		293	user presses a global accelerator key (by default C<F10>), the terminal
		294	will show or hide itself. Another press of the accelerator key will hide
		295	or show it again.
		296
		297	Initially, the window will not be shown when using this extension.
		298
		299	This is useful if you need a single terminal that is not using any desktop
		300	space most of the time but is quickly available at the press of a key.
		301
		302	The accelerator key is grabbed regardless of any modifiers, so this
		303	extension will actually grab a physical key just for this function.
		304
		305	If you want a quake-like animation, tell your window manager to do so
		306	(fvwm can do it).
		307
		308	=item overlay-osc
		309
		310	This extension implements some OSC commands to display timed popups on the
		311	screen - useful for status displays from within scripts. You have to read
		312	the sources for more info.
		313
		314	=item block-graphics-to-ascii
		315
		316	A not very useful example of filtering all text output to the terminal
		317	by replacing all line-drawing characters (U+2500 .. U+259F) by a
		318	similar-looking ascii character.
		319
56	=item digital-clock	320	=item digital-clock
57		321
58	Displays a digital clock using the built-in overlay.	322	Displays a digital clock using the built-in overlay.
		323
		324	=item remote-clipboard
		325
		326	Somewhat of a misnomer, this extension adds two menu entries to the
		327	selection popup that allows one to run external commands to store the
		328	selection somewhere and fetch it again.
		329
		330	We use it to implement a "distributed selection mechanism", which just
		331	means that one command uploads the file to a remote server, and another
		332	reads it.
		333
		334	The commands can be set using the C<URxvt.remote-selection.store> and
		335	C<URxvt.remote-selection.fetch> resources. The first should read the
		336	selection to store from STDIN (always in UTF-8), the second should provide
		337	the selection data on STDOUT (also in UTF-8).
		338
		339	The defaults (which are likely useless to you) use rsh and cat:
		340
		341	URxvt.remote-selection.store: rsh ruth 'cat >/tmp/distributed-selection'
		342	URxvt.remote-selection.fetch: rsh ruth 'cat /tmp/distributed-selection'
		343
		344	=item selection-pastebin
		345
		346	This is a little rarely useful extension that Uploads the selection as
		347	textfile to a remote site (or does other things). (The implementation is
		348	not currently secure for use in a multiuser environment as it writes to
		349	F</tmp> directly.).
		350
		351	It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
		352	i.e.
		353
		354	URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
		355
		356	Pressing this combination runs a command with C<%> replaced by the name of
		357	the textfile. This command can be set via a resource:
		358
		359	URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
		360
		361	And the default is likely not useful to anybody but the few people around
		362	here :)
		363
		364	The name of the textfile is the hex encoded md5 sum of the selection, so
		365	the same content should lead to the same filename.
		366
		367	After a successful upload the selection will be replaced by the text given
		368	in the C<selection-pastebin-url> resource (again, the % is the placeholder
		369	for the filename):
		370
		371	URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
		372
		373	I<Note to xrdb users:> xrdb uses the C preprocessor, which might interpret
		374	the double C</> characters as comment start. Use C<\057\057> instead,
		375	which works regardless of wether xrdb is used to parse the resource file
		376	or not.
		377
		378	=item macosx-pastebin and macosx-pastebin-native
		379
		380	These two modules implement an extended clipboard for Mac OS X. They are
		381	used like this:
		382
		383	URxvt.perl-ext-common: default,macosx-clipboard
		384	URxvt.keysym.M-c: perl:macosx-clipboard:copy
		385	URxvt.keysym.M-v: perl:macosx-clipboard:paste
		386
		387	The difference between them is that the native variant requires a
		388	perl from apple's devkit or so, and C<maxosx-pastebin> requires the
		389	C<Mac::Pasteboard> module, works with other perls, has fewer bugs, is
		390	simpler etc. etc.
59		391
60	=item example-refresh-hooks	392	=item example-refresh-hooks
61		393
62	Displays a very simple digital clock in the upper right corner of the	394	Displays a very simple digital clock in the upper right corner of the
63	window. Illustrates overwriting the refresh callbacks to create your own	395	window. Illustrates overwriting the refresh callbacks to create your own
64	overlays or changes.	396	overlays or changes.
65		397
66	=back	398	=back
67		399
		400	=head1 API DOCUMENTATION
		401
68	=head2 General API Considerations	402	=head2 General API Considerations
69		403
70	All objects (such as terminals, time watchers etc.) are typical	404	All objects (such as terminals, time watchers etc.) are typical
71	reference-to-hash objects. The hash can be used to store anything you	405	reference-to-hash objects. The hash can be used to store anything you
72	like. All members starting with an underscore (such as C<_ptr> or	406	like. All members starting with an underscore (such as C<_ptr> or
73	C<_hook>) are reserved for internal uses and must not be accessed or	407	C<_hook>) are reserved for internal uses and B<MUST NOT> be accessed or
74	modified).	408	modified).
75		409
76	When objects are destroyed on the C++ side, the perl object hashes are	410	When objects are destroyed on the C++ side, the perl object hashes are
77	emptied, so its best to store related objects such as time watchers and	411	emptied, so its best to store related objects such as time watchers and
78	the like inside the terminal object so they get destroyed as soon as the	412	the like inside the terminal object so they get destroyed as soon as the
79	terminal is destroyed.	413	terminal is destroyed.
80		414
		415	Argument names also often indicate the type of a parameter. Here are some
		416	hints on what they mean:
		417
		418	=over 4
		419
		420	=item $text
		421
		422	Rxvt-unicodes special way of encoding text, where one "unicode" character
		423	always represents one screen cell. See L<ROW_t> for a discussion of this format.
		424
		425	=item $string
		426
		427	A perl text string, with an emphasis on I<text>. It can store all unicode
		428	characters and is to be distinguished with text encoded in a specific
		429	encoding (often locale-specific) and binary data.
		430
		431	=item $octets
		432
		433	Either binary data or - more common - a text string encoded in a
		434	locale-specific way.
		435
		436	=back
		437
		438	=head2 Extension Objects
		439
		440	Every perl extension is a perl class. A separate perl object is created
		441	for each terminal, and each terminal has its own set of extenion objects,
		442	which are passed as the first parameter to hooks. So extensions can use
		443	their C<$self> object without having to think about clashes with other
		444	extensions or other terminals, with the exception of methods and members
		445	that begin with an underscore character C<_>: these are reserved for
		446	internal use.
		447
		448	Although it isn't a C<urxvt::term> object, you can call all methods of the
		449	C<urxvt::term> class on this object.
		450
		451	It has the following methods and data members:
		452
		453	=over 4
		454
		455	=item $urxvt_term = $self->{term}
		456
		457	Returns the C<urxvt::term> object associated with this instance of the
		458	extension. This member I<must not> be changed in any way.
		459
		460	=item $self->enable ($hook_name => $cb, [$hook_name => $cb..])
		461
		462	Dynamically enable the given hooks (named without the C<on_> prefix) for
		463	this extension, replacing any previous hook. This is useful when you want
		464	to overwrite time-critical hooks only temporarily.
		465
		466	=item $self->disable ($hook_name[, $hook_name..])
		467
		468	Dynamically disable the given hooks.
		469
		470	=back
		471
81	=head2 Hooks	472	=head2 Hooks
82		473
83	The following subroutines can be declared in loaded scripts, and will be called	474	The following subroutines can be declared in extension files, and will be
84	whenever the relevant event happens.	475	called whenever the relevant event happens.
85		476
86	All of them must return a boolean value. If it is true, then the event	477	The first argument passed to them is an extension object as described in
87	counts as being I<consumed>, and the invocation of other hooks is skipped,	478	the in the C<Extension Objects> section.
		479
		480	B<All> of these hooks must return a boolean value. If any of the called
		481	hooks returns true, then the event counts as being I<consumed>, and the
88	and the relevant action might not be carried out by the C++ code.	482	relevant action might not be carried out by the C++ code.
89		483
90	When in doubt, return a false value (preferably C<()>).	484	I<< When in doubt, return a false value (preferably C<()>). >>
91		485
92	=over 4	486	=over 4
93		487
94	=item on_init $term	488	=item on_init $term
95		489
96	Called after a new terminal object has been initialized, but before	490	Called after a new terminal object has been initialized, but before
97	windows are created or the command gets run.	491	windows are created or the command gets run. Most methods are unsafe to
		492	call or deliver senseless data, as terminal size and other characteristics
		493	have not yet been determined. You can safely query and change resources
		494	and options, though. For many purposes the C<on_start> hook is a better
		495	place.
		496
		497	=item on_start $term
		498
		499	Called at the very end of initialisation of a new terminal, just before
		500	trying to map (display) the toplevel and returning to the main loop.
		501
		502	=item on_destroy $term
		503
		504	Called whenever something tries to destroy terminal, when the terminal is
		505	still fully functional (not for long, though).
98		506
99	=item on_reset $term	507	=item on_reset $term
100		508
101	Called after the screen is "reset" for any reason, such as resizing or	509	Called after the screen is "reset" for any reason, such as resizing or
102	control sequences. Here is where you can react on changes to size-related	510	control sequences. Here is where you can react on changes to size-related
103	variables.	511	variables.
104		512
105	=item on_start $term	513	=item on_child_start $term, $pid
106		514
107	Called at the very end of initialisation of a new terminal, just before	515	Called just after the child process has been C<fork>ed.
108	returning to the mainloop.	516
		517	=item on_child_exit $term, $status
		518
		519	Called just after the child process has exited. C<$status> is the status
		520	from C<waitpid>.
109		521
110	=item on_sel_make $term, $eventtime	522	=item on_sel_make $term, $eventtime
111		523
112	Called whenever a selection has been made by the user, but before the	524	Called whenever a selection has been made by the user, but before the
113	selection text is copied, so changes to the beginning, end or type of the	525	selection text is copied, so changes to the beginning, end or type of the
…		…
120		532
121	Called whenever a selection has been copied, but before the selection is	533	Called whenever a selection has been copied, but before the selection is
122	requested from the server. The selection text can be queried and changed	534	requested from the server. The selection text can be queried and changed
123	by calling C<< $term->selection >>.	535	by calling C<< $term->selection >>.
124		536
125	Returning a true value aborts selection grabbing. It will still be hilighted.	537	Returning a true value aborts selection grabbing. It will still be highlighted.
126		538
127	=item on_focus_in $term	539	=item on_sel_extend $term
128		540
129	Called whenever the window gets the keyboard focus, before urxvt does	541	Called whenever the user tries to extend the selection (e.g. with a double
130	focus in processing.	542	click) and is either supposed to return false (normal operation), or
		543	should extend the selection itself and return true to suppress the built-in
		544	processing. This can happen multiple times, as long as the callback
		545	returns true, it will be called on every further click by the user and is
		546	supposed to enlarge the selection more and more, if possible.
131		547
132	=item on_focus_out $term	548	See the F<selection> example extension.
133
134	Called wheneever the window loses keyboard focus, before urxvt does focus
135	out processing.
136		549
137	=item on_view_change $term, $offset	550	=item on_view_change $term, $offset
138		551
139	Called whenever the view offset changes, i..e the user or program	552	Called whenever the view offset changes, i.e. the user or program
140	scrolls. Offset C<0> means display the normal terminal, positive values	553	scrolls. Offset C<0> means display the normal terminal, positive values
141	show this many lines of scrollback.	554	show this many lines of scrollback.
142		555
143	=item on_scroll_back $term, $lines, $saved	556	=item on_scroll_back $term, $lines, $saved
144		557
…		…
148		561
149	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,	562	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
150	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total	563	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
151	number of lines that will be in the scrollback buffer.	564	number of lines that will be in the scrollback buffer.
152		565
153	=item on_tty_activity $term *NYI*	566	=item on_osc_seq $term, $op, $args, $resp
154		567
155	Called whenever the program(s) running in the urxvt window send output.	568	Called on every OSC sequence and can be used to suppress it or modify its
		569	behaviour. The default should be to return an empty list. A true value
		570	suppresses execution of the request completely. Make sure you don't get
		571	confused by recursive invocations when you output an OSC sequence within
		572	this callback.
		573
		574	C<on_osc_seq_perl> should be used for new behaviour.
		575
		576	=item on_osc_seq_perl $term, $args, $resp
		577
		578	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
		579	operating system command) is processed. Cursor position and other state
		580	information is up-to-date when this happens. For interoperability, the
		581	string should start with the extension name (sans -osc) and a semicolon,
		582	to distinguish it from commands for other extensions, and this might be
		583	enforced in the future.
		584
		585	For example, C<overlay-osc> uses this:
		586
		587	sub on_osc_seq_perl {
		588	my ($self, $osc, $resp) = @_;
		589
		590	return unless $osc =~ s/^overlay;//;
		591
		592	... process remaining $osc string
		593	}
		594
		595	Be careful not ever to trust (in a security sense) the data you receive,
		596	as its source can not easily be controlled (e-mail content, messages from
		597	other users on the same system etc.).
		598
		599	For responses, C<$resp> contains the end-of-args separator used by the
		600	sender.
		601
		602	=item on_add_lines $term, $string
		603
		604	Called whenever text is about to be output, with the text as argument. You
		605	can filter/change and output the text yourself by returning a true value
		606	and calling C<< $term->scr_add_lines >> yourself. Please note that this
		607	might be very slow, however, as your hook is called for B<all> text being
		608	output.
		609
		610	=item on_tt_write $term, $octets
		611
		612	Called whenever some data is written to the tty/pty and can be used to
		613	suppress or filter tty input.
		614
		615	=item on_line_update $term, $row
		616
		617	Called whenever a line was updated or changed. Can be used to filter
		618	screen output (e.g. underline urls or other useless stuff). Only lines
		619	that are being shown will be filtered, and, due to performance reasons,
		620	not always immediately.
		621
		622	The row number is always the topmost row of the line if the line spans
		623	multiple rows.
		624
		625	Please note that, if you change the line, then the hook might get called
		626	later with the already-modified line (e.g. if unrelated parts change), so
		627	you cannot just toggle rendition bits, but only set them.
156		628
157	=item on_refresh_begin $term	629	=item on_refresh_begin $term
158		630
159	Called just before the screen gets redrawn. Can be used for overlay	631	Called just before the screen gets redrawn. Can be used for overlay or
160	or similar effects by modify terminal contents in refresh_begin, and	632	similar effects by modifying the terminal contents in refresh_begin, and
161	restoring them in refresh_end. The built-in overlay and selection display	633	restoring them in refresh_end. The built-in overlay and selection display
162	code is run after this hook, and takes precedence.	634	code is run after this hook, and takes precedence.
163		635
164	=item on_refresh_end $term	636	=item on_refresh_end $term
165		637
166	Called just after the screen gets redrawn. See C<on_refresh_begin>.	638	Called just after the screen gets redrawn. See C<on_refresh_begin>.
167		639
168	=item on_keyboard_command $term, $string	640	=item on_user_command $term, $string
169		641
170	Called whenever the user presses a key combination that has a	642	Called whenever a user-configured event is being activated (e.g. via
171	C<perl:string> action bound to it (see description of the B<keysym>	643	a C<perl:string> action bound to a key, see description of the B<keysym>
172	resource in the @@RXVT_NAME@@(1) manpage).	644	resource in the @@RXVT_NAME@@(1) manpage).
		645
		646	The event is simply the action string. This interface is assumed to change
		647	slightly in the future.
		648
		649	=item on_resize_all_windows $tern, $new_width, $new_height
		650
		651	Called just after the new window size has been calculated, but before
		652	windows are actually being resized or hints are being set. If this hook
		653	returns TRUE, setting of the window hints is being skipped.
		654
		655	=item on_x_event $term, $event
		656
		657	Called on every X event received on the vt window (and possibly other
		658	windows). Should only be used as a last resort. Most event structure
		659	members are not passed.
		660
		661	=item on_root_event $term, $event
		662
		663	Like C<on_x_event>, but is called for events on the root window.
		664
		665	=item on_focus_in $term
		666
		667	Called whenever the window gets the keyboard focus, before rxvt-unicode
		668	does focus in processing.
		669
		670	=item on_focus_out $term
		671
		672	Called whenever the window loses keyboard focus, before rxvt-unicode does
		673	focus out processing.
		674
		675	=item on_configure_notify $term, $event
		676
		677	=item on_property_notify $term, $event
		678
		679	=item on_key_press $term, $event, $keysym, $octets
		680
		681	=item on_key_release $term, $event, $keysym
		682
		683	=item on_button_press $term, $event
		684
		685	=item on_button_release $term, $event
		686
		687	=item on_motion_notify $term, $event
		688
		689	=item on_map_notify $term, $event
		690
		691	=item on_unmap_notify $term, $event
		692
		693	Called whenever the corresponding X event is received for the terminal If
		694	the hook returns true, then the even will be ignored by rxvt-unicode.
		695
		696	The event is a hash with most values as named by Xlib (see the XEvent
		697	manpage), with the additional members C<row> and C<col>, which are the
		698	(real, not screen-based) row and column under the mouse cursor.
		699
		700	C<on_key_press> additionally receives the string rxvt-unicode would
		701	output, if any, in locale-specific encoding.
		702
		703	subwindow.
		704
		705	=item on_client_message $term, $event
		706
		707	=item on_wm_protocols $term, $event
		708
		709	=item on_wm_delete_window $term, $event
		710
		711	Called when various types of ClientMessage events are received (all with
		712	format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
		713
		714	=back
		715
		716	=cut
		717
		718	package urxvt;
		719
		720	use utf8;
		721	use strict;
		722	use Carp ();
		723	use Scalar::Util ();
		724	use List::Util ();
		725
		726	our $VERSION = 1;
		727	our $TERM;
		728	our @TERM_INIT;
		729	our @TERM_EXT;
		730	our @HOOKNAME;
		731	our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
		732	our %OPTION;
		733
		734	our $LIBDIR;
		735	our $RESNAME;
		736	our $RESCLASS;
		737	our $RXVTNAME;
		738
		739	our $NOCHAR = chr 0xffff;
		740
		741	=head2 Variables in the C<urxvt> Package
		742
		743	=over 4
		744
		745	=item $urxvt::LIBDIR
		746
		747	The rxvt-unicode library directory, where, among other things, the perl
		748	modules and scripts are stored.
		749
		750	=item $urxvt::RESCLASS, $urxvt::RESCLASS
		751
		752	The resource class and name rxvt-unicode uses to look up X resources.
		753
		754	=item $urxvt::RXVTNAME
		755
		756	The basename of the installed binaries, usually C<urxvt>.
		757
		758	=item $urxvt::TERM
		759
		760	The current terminal. This variable stores the current C<urxvt::term>
		761	object, whenever a callback/hook is executing.
		762
		763	=item @urxvt::TERM_INIT
		764
		765	All code references in this array will be called as methods of the next newly
		766	created C<urxvt::term> object (during the C<on_init> phase). The array
		767	gets cleared before the code references that were in it are being executed,
		768	so references can push themselves onto it again if they so desire.
		769
		770	This complements to the perl-eval command line option, but gets executed
		771	first.
		772
		773	=item @urxvt::TERM_EXT
		774
		775	Works similar to C<@TERM_INIT>, but contains perl package/class names, which
		776	get registered as normal extensions after calling the hooks in C<@TERM_INIT>
		777	but before other extensions. Gets cleared just like C<@TERM_INIT>.
173		778
174	=back	779	=back
175		780
176	=head2 Functions in the C<urxvt> Package	781	=head2 Functions in the C<urxvt> Package
177		782
…		…
190	that calls this function.	795	that calls this function.
191		796
192	Using this function has the advantage that its output ends up in the	797	Using this function has the advantage that its output ends up in the
193	correct place, e.g. on stderr of the connecting urxvtc client.	798	correct place, e.g. on stderr of the connecting urxvtc client.
194		799
		800	Messages have a size limit of 1023 bytes currently.
		801
		802	=item @terms = urxvt::termlist
		803
		804	Returns all urxvt::term objects that exist in this process, regardless of
		805	whether they are started, being destroyed etc., so be careful. Only term
		806	objects that have perl extensions attached will be returned (because there
		807	is no urxvt::term objet associated with others).
		808
195	=item $time = urxvt::NOW	809	=item $time = urxvt::NOW
196		810
197	Returns the "current time" (as per the event loop).	811	Returns the "current time" (as per the event loop).
		812
		813	=item urxvt::CurrentTime
		814
		815	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
		816	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
		817	Button4Mask, Button5Mask, AnyModifier
		818
		819	=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
		820	ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
		821	PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
		822	Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
		823	KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
		824	ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
		825	FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
		826
		827	=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
		828	EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
		829	GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
		830	UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
		831	ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
		832	CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
		833	SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
		834
		835	Various constants for use in X calls and event processing.
		836
		837	=back
198		838
199	=head2 RENDITION	839	=head2 RENDITION
200		840
201	Rendition bitsets contain information about colour, font, font styles and	841	Rendition bitsets contain information about colour, font, font styles and
202	similar information for each screen cell.	842	similar information for each screen cell.
…		…
227		867
228	=item $background = urxvt::GET_BASEBG $rend	868	=item $background = urxvt::GET_BASEBG $rend
229		869
230	Return the foreground/background colour index, respectively.	870	Return the foreground/background colour index, respectively.
231		871
232	=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)	872	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
233		873
234	=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)	874	=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
		875
		876	=item $rend = urxvt::SET_COLOR $rend, $new_fg, $new_bg
235		877
236	Replace the foreground/background colour in the rendition mask with the	878	Replace the foreground/background colour in the rendition mask with the
237	specified one.	879	specified one.
238		880
239	=item $value = urxvt::GET_CUSTOM ($rend)	881	=item $value = urxvt::GET_CUSTOM $rend
240		882
241	Return the "custom" value: Every rendition has 5 bits for use by	883	Return the "custom" value: Every rendition has 5 bits for use by
242	extensions. They can be set and changed as you like and are initially	884	extensions. They can be set and changed as you like and are initially
243	zero.	885	zero.
244		886
245	=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)	887	=item $rend = urxvt::SET_CUSTOM $rend, $new_value
246		888
247	Change the custom value.	889	Change the custom value.
248		890
249	=back	891	=back
250		892
251	=cut	893	=cut
252		894
253	package urxvt;
254
255	use strict;
256
257	our $term;
258	our @HOOKNAME;
259	our $LIBDIR;
260
261	BEGIN {	895	BEGIN {
262	urxvt->bootstrap;
263
264	# overwrite perl's warn	896	# overwrite perl's warn
265	*CORE::GLOBAL::warn = sub {	897	*CORE::GLOBAL::warn = sub {
266	my $msg = join "", @_;	898	my $msg = join "", @_;
267	$msg .= "\n"	899	$msg .= "\n"
268	unless $msg =~ /\n$/;	900	unless $msg =~ /\n$/;
269	urxvt::warn ($msg);	901	urxvt::warn ($msg);
270	};	902	};
271	}	903	}
272		904
273	my @hook_count;	905	no warnings 'utf8';
		906
274	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};	907	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
275		908
276	sub verbose {	909	sub verbose {
277	my ($level, $msg) = @_;	910	my ($level, $msg) = @_;
278	warn "$msg\n" if $level <= $verbosity;	911	warn "$msg\n" if $level <= $verbosity;
279	}	912	}
280		913
281	# find on_xxx subs in the package and register them	914	my %extension_pkg;
282	# as hooks
283	sub register_package($) {
284	my ($pkg) = @_;
285
286	for my $htype (0.. $#HOOKNAME) {
287	my $name = $HOOKNAME[$htype];
288
289	my $ref = $pkg->can ("on_" . lc $name)
290	or next;
291
292	$term->{_hook}[$htype]{$ref*1} = $ref;
293	$hook_count[$htype]++
294	or set_should_invoke $htype, 1;
295	}
296	}
297
298	my $script_pkg = "script0000";
299	my %script_pkg;
300		915
301	# load a single script into its own package, once only	916	# load a single script into its own package, once only
302	sub script_package($) {	917	sub extension_package($) {
303	my ($path) = @_;	918	my ($path) = @_;
304		919
305	$script_pkg{$path} ||= do {	920	$extension_pkg{$path} ||= do {
306	my $pkg = "urxvt::" . ($script_pkg++);	921	$path =~ /([^\/\\]+)$/;
		922	my $pkg = $1;
		923	$pkg =~ s/[^[:word:]]/_/g;
		924	$pkg = "urxvt::ext::$pkg";
307		925
308	verbose 3, "loading script '$path' into package '$pkg'";	926	verbose 3, "loading extension '$path' into package '$pkg'";
309		927
310	open my $fh, "<:raw", $path	928	open my $fh, "<:raw", $path
311	or die "$path: $!";	929	or die "$path: $!";
312		930
313	my $source = "package $pkg; use strict; use utf8;\n"	931	my $source =
		932	"package $pkg; use strict; use utf8; no warnings 'utf8';\n"
314	. "#line 1 \"$path\"\n{\n"	933	. "#line 1 \"$path\"\n{\n"
315	. (do { local $/; <$fh> })	934	. (do { local $/; <$fh> })
316	. "\n};\n1";	935	. "\n};\n1";
317		936
		937	eval $source
318	eval $source or die "$path: $@";	938	or die "$path: $@";
319		939
320	$pkg	940	$pkg
321	}	941	}
322	}	942	}
323		943
		944	our $retval; # return value for urxvt
		945
324	# called by the rxvt core	946	# called by the rxvt core
325	sub invoke {	947	sub invoke {
326	local $term = shift;	948	local $TERM = shift;
327	my $htype = shift;	949	my $htype = shift;
328		950
329	if ($htype == 0) { # INIT	951	if ($htype == 0) { # INIT
330	my @dirs = ((split /:/, $term->resource ("perl_lib")), "$LIBDIR/perl");	952	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
331		953
332	for my $ext (split /:/, $term->resource ("perl_ext")) {	954	my %ext_arg;
		955
		956	{
		957	my @init = @TERM_INIT;
		958	@TERM_INIT = ();
		959	$_->($TERM) for @init;
		960	my @pkg = @TERM_EXT;
		961	@TERM_EXT = ();
		962	$TERM->register_package ($_) for @pkg;
		963	}
		964
		965	for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
		966	if ($_ eq "default") {
		967	$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
		968	} elsif (/^-(.*)$/) {
		969	delete $ext_arg{$1};
		970	} elsif (/^([^<]+)<(.*)>$/) {
		971	push @{ $ext_arg{$1} }, $2;
		972	} else {
		973	$ext_arg{$_} ||= [];
		974	}
		975	}
		976
		977	for my $ext (sort keys %ext_arg) {
333	my @files = grep -f $_, map "$_/$ext", @dirs;	978	my @files = grep -f $_, map "$_/$ext", @dirs;
334		979
335	if (@files) {	980	if (@files) {
336	register_package script_package $files[0];	981	$TERM->register_package (extension_package $files[0], $ext_arg{$ext});
337	} else {	982	} else {
338	warn "perl extension '$ext' not found in perl library search path\n";	983	warn "perl extension '$ext' not found in perl library search path\n";
339	}	984	}
340	}	985	}
341		986
		987	eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval");
		988	warn $@ if $@;
		989	}
		990
		991	$retval = undef;
		992
		993	if (my $cb = $TERM->{_hook}[$htype]) {
		994	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
		995	if $verbosity >= 10;
		996
		997	for my $pkg (keys %$cb) {
		998	my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg}, @_) };
		999	$retval ||= $retval_;
		1000
		1001	if ($@) {
		1002	$TERM->ungrab; # better to lose the grab than the session
		1003	warn $@;
		1004	}
		1005	}
		1006
		1007	verbose 11, "$HOOKNAME[$htype] returning <$retval>"
		1008	if $verbosity >= 11;
		1009	}
		1010
342	} elsif ($htype == 1) { # DESTROY	1011	if ($htype == 1) { # DESTROY
343	if (my $hook = $term->{_hook}) {	1012	# clear package objects
344	for my $htype (0..$#$hook) {	1013	%$_ = () for values %{ $TERM->{_pkg} };
345	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }	1014
346	or set_should_invoke $htype, 0;	1015	# clear package
		1016	%$TERM = ();
		1017	}
		1018
		1019	$retval
		1020	}
		1021
		1022	sub SET_COLOR($$$) {
		1023	SET_BGCOLOR (SET_FGCOLOR ($_[0], $_[1]), $_[2])
		1024	}
		1025
		1026	sub rend2mask {
		1027	no strict 'refs';
		1028	my ($str, $mask) = (@_, 0);
		1029	my %color = ( fg => undef, bg => undef );
		1030	my @failed;
		1031	for my $spec ( split /\s+/, $str ) {
		1032	if ( $spec =~ /^([fb]g)[_:-]?(\d+)/i ) {
		1033	$color{lc($1)} = $2;
		1034	} else {
		1035	my $neg = $spec =~ s/^[-^]//;
		1036	unless ( exists &{"RS_$spec"} ) {
		1037	push @failed, $spec;
		1038	next;
		1039	}
		1040	my $cur = &{"RS_$spec"};
		1041	if ( $neg ) {
		1042	$mask &= ~$cur;
		1043	} else {
		1044	$mask |= $cur;
347	}	1045	}
348	}	1046	}
349	}	1047	}
		1048	($mask, @color{qw(fg bg)}, \@failed)
		1049	}
350		1050
351	my $cb = $term->{_hook}[$htype]	1051	# urxvt::term::extension
352	or return;
353		1052
354	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $term, @_) . ")"	1053	package urxvt::term::extension;
355	if $verbosity >= 10;
356		1054
		1055	sub enable {
		1056	my ($self, %hook) = @_;
		1057	my $pkg = $self->{_pkg};
		1058
357	while (my ($k, $v) = each %$cb) {	1059	while (my ($name, $cb) = each %hook) {
358	return 1 if $v->($term, @_);	1060	my $htype = $HOOKTYPE{uc $name};
		1061	defined $htype
		1062	or Carp::croak "unsupported hook type '$name'";
		1063
		1064	$self->set_should_invoke ($htype, +1)
		1065	unless exists $self->{term}{_hook}[$htype]{$pkg};
		1066
		1067	$self->{term}{_hook}[$htype]{$pkg} = $cb;
359	}	1068	}
		1069	}
360		1070
		1071	sub disable {
		1072	my ($self, @hook) = @_;
		1073	my $pkg = $self->{_pkg};
		1074
		1075	for my $name (@hook) {
		1076	my $htype = $HOOKTYPE{uc $name};
		1077	defined $htype
		1078	or Carp::croak "unsupported hook type '$name'";
		1079
		1080	$self->set_should_invoke ($htype, -1)
		1081	if delete $self->{term}{_hook}[$htype]{$pkg};
361	0	1082	}
362	}	1083	}
363		1084
364	=back	1085	our $AUTOLOAD;
		1086
		1087	sub AUTOLOAD {
		1088	$AUTOLOAD =~ /:([^:]+)$/
		1089	or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
		1090
		1091	eval qq{
		1092	sub $AUTOLOAD {
		1093	my \$proxy = shift;
		1094	\$proxy->{term}->$1 (\@_)
		1095	}
		1096	1
		1097	} or die "FATAL: unable to compile method forwarder: $@";
		1098
		1099	goto &$AUTOLOAD;
		1100	}
		1101
		1102	sub DESTROY {
		1103	# nop
		1104	}
		1105
		1106	# urxvt::destroy_hook
		1107
		1108	sub urxvt::destroy_hook::DESTROY {
		1109	${$_[0]}->();
		1110	}
		1111
		1112	sub urxvt::destroy_hook(&) {
		1113	bless \shift, urxvt::destroy_hook::
		1114	}
		1115
		1116	package urxvt::anyevent;
		1117
		1118	=head2 The C<urxvt::anyevent> Class
		1119
		1120	The sole purpose of this class is to deliver an interface to the
		1121	C<AnyEvent> module - any module using it will work inside urxvt without
		1122	further programming. The only exception is that you cannot wait on
		1123	condition variables, but non-blocking condvar use is ok. What this means
		1124	is that you cannot use blocking APIs, but the non-blocking variant should
		1125	work.
		1126
		1127	=cut
		1128
		1129	our $VERSION = '3.4';
		1130
		1131	$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
		1132	push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
		1133
		1134	sub timer {
		1135	my ($class, %arg) = @_;
		1136
		1137	my $cb = $arg{cb};
		1138
		1139	urxvt::timer
		1140	->new
		1141	->start (urxvt::NOW + $arg{after})
		1142	->cb (sub {
		1143	$_[0]->stop; # need to cancel manually
		1144	$cb->();
		1145	})
		1146	}
		1147
		1148	sub io {
		1149	my ($class, %arg) = @_;
		1150
		1151	my $cb = $arg{cb};
		1152
		1153	bless [$arg{fh}, urxvt::iow
		1154	->new
		1155	->fd (fileno $arg{fh})
		1156	->events (($arg{poll} =~ /r/ ? 1 : 0)
		1157	| ($arg{poll} =~ /w/ ? 2 : 0))
		1158	->start
		1159	->cb (sub {
		1160	$cb->(($_[1] & 1 ? 'r' : '')
		1161	. ($_[1] & 2 ? 'w' : ''));
		1162	})],
		1163	urxvt::anyevent::
		1164	}
		1165
		1166	sub DESTROY {
		1167	$_[0][1]->stop;
		1168	}
		1169
		1170	sub one_event {
		1171	Carp::croak "AnyEvent->one_event blocking wait unsupported in urxvt, use a non-blocking API";
		1172	}
		1173
		1174	package urxvt::term;
365		1175
366	=head2 The C<urxvt::term> Class	1176	=head2 The C<urxvt::term> Class
367		1177
368	=over 4	1178	=over 4
		1179
		1180	=cut
		1181
		1182	# find on_xxx subs in the package and register them
		1183	# as hooks
		1184	sub register_package {
		1185	my ($self, $pkg, $argv) = @_;
		1186
		1187	no strict 'refs';
		1188
		1189	urxvt::verbose 6, "register package $pkg to $self";
		1190
		1191	@{"$pkg\::ISA"} = urxvt::term::extension::;
		1192
		1193	my $proxy = bless {
		1194	_pkg => $pkg,
		1195	argv => $argv,
		1196	}, $pkg;
		1197	Scalar::Util::weaken ($proxy->{term} = $self);
		1198
		1199	$self->{_pkg}{$pkg} = $proxy;
		1200
		1201	for my $name (@HOOKNAME) {
		1202	if (my $ref = $pkg->can ("on_" . lc $name)) {
		1203	$proxy->enable ($name => $ref);
		1204	}
		1205	}
		1206	}
		1207
		1208	=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
		1209
		1210	Creates a new terminal, very similar as if you had started it with system
		1211	C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
		1212	hash which defines the environment of the new terminal.
		1213
		1214	Croaks (and probably outputs an error message) if the new instance
		1215	couldn't be created. Returns C<undef> if the new instance didn't
		1216	initialise perl, and the terminal object otherwise. The C<init> and
		1217	C<start> hooks will be called before this call returns, and are free to
		1218	refer to global data (which is race free).
		1219
		1220	=cut
		1221
		1222	sub new {
		1223	my ($class, $env, @args) = @_;
		1224
		1225	$env or Carp::croak "environment hash missing in call to urxvt::term->new";
		1226	@args or Carp::croak "name argument missing in call to urxvt::term->new";
		1227
		1228	_new ([ map "$_=$env->{$_}", keys %$env ], \@args);
		1229	}
		1230
		1231	=item $term->destroy
		1232
		1233	Destroy the terminal object (close the window, free resources
		1234	etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
		1235	watchers (timers, io watchers) are still active.
		1236
		1237	=item $term->exec_async ($cmd[, @args])
		1238
		1239	Works like the combination of the C<fork>/C<exec> builtins, which executes
		1240	("starts") programs in the background. This function takes care of setting
		1241	the user environment before exec'ing the command (e.g. C<PATH>) and should
		1242	be preferred over explicit calls to C<exec> or C<system>.
		1243
		1244	Returns the pid of the subprocess or C<undef> on error.
		1245
		1246	=cut
		1247
		1248	sub exec_async {
		1249	my $self = shift;
		1250
		1251	my $pid = fork;
		1252
		1253	return $pid
		1254	if !defined $pid or $pid;
		1255
		1256	%ENV = %{ $self->env };
		1257
		1258	exec @_;
		1259	urxvt::_exit 255;
		1260	}
		1261
		1262	=item $isset = $term->option ($optval[, $set])
		1263
		1264	Returns true if the option specified by C<$optval> is enabled, and
		1265	optionally change it. All option values are stored by name in the hash
		1266	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
		1267
		1268	Here is a likely non-exhaustive list of option names, please see the
		1269	source file F</src/optinc.h> to see the actual list:
		1270
		1271	borderLess console cursorBlink cursorUnderline hold iconic insecure
		1272	intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
		1273	override-redirect pastableTabs pointerBlank reverseVideo scrollBar
		1274	scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
		1275	scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
		1276	transparent tripleclickwords utmpInhibit visualBell
369		1277
370	=item $value = $term->resource ($name[, $newval])	1278	=item $value = $term->resource ($name[, $newval])
371		1279
372	Returns the current resource value associated with a given name and	1280	Returns the current resource value associated with a given name and
373	optionally sets a new value. Setting values is most useful in the C<init>	1281	optionally sets a new value. Setting values is most useful in the C<init>
…		…
382	likely change).	1290	likely change).
383		1291
384	Please note that resource strings will currently only be freed when the	1292	Please note that resource strings will currently only be freed when the
385	terminal is destroyed, so changing options frequently will eat memory.	1293	terminal is destroyed, so changing options frequently will eat memory.
386		1294
387	Here is a a likely non-exhaustive list of resource names, not all of which	1295	Here is a likely non-exhaustive list of resource names, not all of which
388	are supported in every build, please see the source to see the actual	1296	are supported in every build, please see the source file F</src/rsinc.h>
389	list:	1297	to see the actual list:
390		1298
391	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont	1299	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
392	borderLess color cursorBlink cursorUnderline cutchars delete_key	1300	borderLess chdir color cursorBlink cursorUnderline cutchars delete_key
393	display_name embed ext_bwidth fade font geometry hold iconName	1301	display_name embed ext_bwidth fade font geometry hold iconName
394	imFont imLocale inputMethod insecure int_bwidth intensityStyles	1302	imFont imLocale inputMethod insecure int_bwidth intensityStyles
395	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier	1303	italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
396	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext	1304	mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
397	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd	1305	perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
398	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating	1306	preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
399	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput	1307	scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
400	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle	1308	scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
401	shade term_name title transparent transparent_all tripleclickwords	1309	secondaryScreen secondaryScroll shade term_name title
402	utmpInhibit visualBell	1310	transient_for transparent transparent_all tripleclickwords utmpInhibit
		1311	visualBell
403		1312
404	=cut	1313	=cut
405		1314
406	sub urxvt::term::resource($$;$) {	1315	sub resource($$;$) {
407	my ($self, $name) = (shift, shift);	1316	my ($self, $name) = (shift, shift);
408	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);	1317	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
409	goto &urxvt::term::_resource;	1318	goto &urxvt::term::_resource
410	}	1319	}
		1320
		1321	=item $value = $term->x_resource ($pattern)
		1322
		1323	Returns the X-Resource for the given pattern, excluding the program or
		1324	class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
		1325	same value as used by this instance of rxvt-unicode. Returns C<undef> if no
		1326	resource with that pattern exists.
		1327
		1328	This method should only be called during the C<on_start> hook, as there is
		1329	only one resource database per display, and later invocations might return
		1330	the wrong resources.
		1331
		1332	=item $success = $term->parse_keysym ($keysym_spec, $command_string)
		1333
		1334	Adds a keymap translation exactly as specified via a resource. See the
		1335	C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
		1336
		1337	=item $rend = $term->rstyle ([$new_rstyle])
		1338
		1339	Return and optionally change the current rendition. Text that is output by
		1340	the terminal application will use this style.
		1341
		1342	=item ($row, $col) = $term->screen_cur ([$row, $col])
		1343
		1344	Return the current coordinates of the text cursor position and optionally
		1345	set it (which is usually bad as applications don't expect that).
411		1346
412	=item ($row, $col) = $term->selection_mark ([$row, $col])	1347	=item ($row, $col) = $term->selection_mark ([$row, $col])
413		1348
414	=item ($row, $col) = $term->selection_beg ([$row, $col])	1349	=item ($row, $col) = $term->selection_beg ([$row, $col])
415		1350
416	=item ($row, $col) = $term->selection_end ([$row, $col])	1351	=item ($row, $col) = $term->selection_end ([$row, $col])
417		1352
418	Return the current values of the selection mark, begin or end positions,	1353	Return the current values of the selection mark, begin or end positions,
419	and optionally set them to new values.	1354	and optionally set them to new values.
420		1355
		1356	=item $term->selection_make ($eventtime[, $rectangular])
		1357
		1358	Tries to make a selection as set by C<selection_beg> and
		1359	C<selection_end>. If C<$rectangular> is true (default: false), a
		1360	rectangular selection will be made. This is the prefered function to make
		1361	a selection.
		1362
421	=item $success = $term->selection_grab ($eventtime)	1363	=item $success = $term->selection_grab ($eventtime)
422		1364
423	Try to request the primary selection from the server (for example, as set	1365	Try to request the primary selection text from the server (for example, as
424	by the next method).	1366	set by the next method). No visual feedback will be given. This function
		1367	is mostly useful from within C<on_sel_grab> hooks.
425		1368
426	=item $oldtext = $term->selection ([$newtext])	1369	=item $oldtext = $term->selection ([$newtext])
427		1370
428	Return the current selection text and optionally replace it by C<$newtext>.	1371	Return the current selection text and optionally replace it by C<$newtext>.
429		1372
430	#=item $term->overlay ($x, $y, $text)	1373	=item $term->overlay_simple ($x, $y, $text)
431	#	1374
432	#Create a simple multi-line overlay box. See the next method for details.	1375	Create a simple multi-line overlay box. See the next method for details.
433	#	1376
434	#=cut	1377	=cut
435		1378
436	sub urxvt::term::scr_overlay {	1379	sub overlay_simple {
437	die;
438	my ($self, $x, $y, $text) = @_;	1380	my ($self, $x, $y, $text) = @_;
439		1381
440	my @lines = split /\n/, $text;	1382	my @lines = split /\n/, $text;
441		1383
442	my $w = 0;	1384	my $w = List::Util::max map $self->strwidth ($_), @lines;
443	for (map $self->strwidth ($_), @lines) {
444	$w = $_ if $w < $_;
445	}
446		1385
447	$self->scr_overlay_new ($x, $y, $w, scalar @lines);	1386	my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
448	$self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;	1387	$overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
		1388
		1389	$overlay
449	}	1390	}
450		1391
451	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])	1392	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
452		1393
453	Create a new (empty) overlay at the given position with the given	1394	Create a new (empty) overlay at the given position with the given
…		…
461	right/bottom side, respectively.	1402	right/bottom side, respectively.
462		1403
463	This method returns an urxvt::overlay object. The overlay will be visible	1404	This method returns an urxvt::overlay object. The overlay will be visible
464	as long as the perl object is referenced.	1405	as long as the perl object is referenced.
465		1406
466	Currently, the only method on the C<urxvt::overlay> object is C<set>:	1407	The methods currently supported on C<urxvt::overlay> objects are:
467		1408
		1409	=over 4
		1410
468	=item $overlay->set ($x, $y, $text, $rend)	1411	=item $overlay->set ($x, $y, $text[, $rend])
469		1412
470	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts	1413	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts
471	text in rxvt-unicode's special encoding and an array of rendition values	1414	text in rxvt-unicode's special encoding and an array of rendition values
472	at a specific position inside the overlay.	1415	at a specific position inside the overlay.
473		1416
		1417	If C<$rend> is missing, then the rendition will not be changed.
		1418
		1419	=item $overlay->hide
		1420
		1421	If visible, hide the overlay, but do not destroy it.
		1422
		1423	=item $overlay->show
		1424
		1425	If hidden, display the overlay again.
		1426
		1427	=back
		1428
		1429	=item $popup = $term->popup ($event)
		1430
		1431	Creates a new C<urxvt::popup> object that implements a popup menu. The
		1432	C<$event> I<must> be the event causing the menu to pop up (a button event,
		1433	currently).
		1434
		1435	=cut
		1436
		1437	sub popup {
		1438	my ($self, $event) = @_;
		1439
		1440	$self->grab ($event->{time}, 1)
		1441	or return;
		1442
		1443	my $popup = bless {
		1444	term => $self,
		1445	event => $event,
		1446	}, urxvt::popup::;
		1447
		1448	Scalar::Util::weaken $popup->{term};
		1449
		1450	$self->{_destroy}{$popup} = urxvt::destroy_hook { $popup->{popup}->destroy };
		1451	Scalar::Util::weaken $self->{_destroy}{$popup};
		1452
		1453	$popup
		1454	}
		1455
474	=item $cellwidth = $term->strwidth $string	1456	=item $cellwidth = $term->strwidth ($string)
475		1457
476	Returns the number of screen-cells this string would need. Correctly	1458	Returns the number of screen-cells this string would need. Correctly
477	accounts for wide and combining characters.	1459	accounts for wide and combining characters.
478		1460
479	=item $octets = $term->locale_encode $string	1461	=item $octets = $term->locale_encode ($string)
480		1462
481	Convert the given text string into the corresponding locale encoding.	1463	Convert the given text string into the corresponding locale encoding.
482		1464
483	=item $string = $term->locale_decode $octets	1465	=item $string = $term->locale_decode ($octets)
484		1466
485	Convert the given locale-encoded octets into a perl string.	1467	Convert the given locale-encoded octets into a perl string.
		1468
		1469	=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
		1470
		1471	XORs the rendition values in the given span with the provided value
		1472	(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
		1473	refresh hooks to provide effects similar to the selection.
		1474
		1475	=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
		1476
		1477	Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
		1478	whitespace will additionally be xored with the C<$rstyle2>, which defaults
		1479	to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
		1480	it instead. Both styles I<MUST NOT> contain font styles.
		1481
		1482	=item $term->scr_bell
		1483
		1484	Ring the bell!
		1485
		1486	=item $term->scr_add_lines ($string)
		1487
		1488	Write the given text string to the screen, as if output by the application
		1489	running inside the terminal. It may not contain command sequences (escape
		1490	codes), but is free to use line feeds, carriage returns and tabs. The
		1491	string is a normal text string, not in locale-dependent encoding.
		1492
		1493	Normally its not a good idea to use this function, as programs might be
		1494	confused by changes in cursor position or scrolling. Its useful inside a
		1495	C<on_add_lines> hook, though.
		1496
		1497	=item $term->scr_change_screen ($screen)
		1498
		1499	Switch to given screen - 0 primary, 1 secondary.
		1500
		1501	=item $term->cmd_parse ($octets)
		1502
		1503	Similar to C<scr_add_lines>, but the argument must be in the
		1504	locale-specific encoding of the terminal and can contain command sequences
		1505	(escape codes) that will be interpreted.
486		1506
487	=item $term->tt_write ($octets)	1507	=item $term->tt_write ($octets)
488		1508
489	Write the octets given in C<$data> to the tty (i.e. as program input). To	1509	Write the octets given in C<$data> to the tty (i.e. as program input). To
490	pass characters instead of octets, you should convert your strings first	1510	pass characters instead of octets, you should convert your strings first
491	to the locale-specific encoding using C<< $term->locale_encode >>.	1511	to the locale-specific encoding using C<< $term->locale_encode >>.
492		1512
		1513	=item $old_events = $term->pty_ev_events ([$new_events])
		1514
		1515	Replaces the event mask of the pty watcher by the given event mask. Can
		1516	be used to suppress input and output handling to the pty/tty. See the
		1517	description of C<< urxvt::timer->events >>. Make sure to always restore
		1518	the previous value.
		1519
		1520	=item $fd = $term->pty_fd
		1521
		1522	Returns the master file descriptor for the pty in use, or C<-1> if no pty
		1523	is used.
		1524
		1525	=item $windowid = $term->parent
		1526
		1527	Return the window id of the toplevel window.
		1528
		1529	=item $windowid = $term->vt
		1530
		1531	Return the window id of the terminal window.
		1532
		1533	=item $term->vt_emask_add ($x_event_mask)
		1534
		1535	Adds the specified events to the vt event mask. Useful e.g. when you want
		1536	to receive pointer events all the times:
		1537
		1538	$term->vt_emask_add (urxvt::PointerMotionMask);
		1539
		1540	=item $term->focus_in
		1541
		1542	=item $term->focus_out
		1543
		1544	=item $term->key_press ($state, $keycode[, $time])
		1545
		1546	=item $term->key_release ($state, $keycode[, $time])
		1547
		1548	Deliver various fake events to to terminal.
		1549
		1550	=item $window_width = $term->width
		1551
		1552	=item $window_height = $term->height
		1553
		1554	=item $font_width = $term->fwidth
		1555
		1556	=item $font_height = $term->fheight
		1557
		1558	=item $font_ascent = $term->fbase
		1559
493	=item $nrow = $term->nrow	1560	=item $terminal_rows = $term->nrow
494		1561
495	=item $ncol = $term->ncol	1562	=item $terminal_columns = $term->ncol
496		1563
497	Return the number of rows/columns of the terminal window (i.e. as	1564	=item $has_focus = $term->focus
498	specified by C<-geometry>, excluding any scrollback).
499		1565
		1566	=item $is_mapped = $term->mapped
		1567
		1568	=item $max_scrollback = $term->saveLines
		1569
		1570	=item $nrow_plus_saveLines = $term->total_rows
		1571
		1572	=item $topmost_scrollback_row = $term->top_row
		1573
		1574	Return various integers describing terminal characteristics.
		1575
		1576	=item $x_display = $term->display_id
		1577
		1578	Return the DISPLAY used by rxvt-unicode.
		1579
		1580	=item $lc_ctype = $term->locale
		1581
		1582	Returns the LC_CTYPE category string used by this rxvt-unicode.
		1583
500	=item $nsaved = $term->nsaved	1584	=item $env = $term->env
501		1585
502	Returns the number of lines in the scrollback buffer.	1586	Returns a copy of the environment in effect for the terminal as a hashref
		1587	similar to C<\%ENV>.
		1588
		1589	=item @envv = $term->envv
		1590
		1591	Returns the environment as array of strings of the form C<VAR=VALUE>.
		1592
		1593	=item @argv = $term->argv
		1594
		1595	Return the argument vector as this terminal, similar to @ARGV, but
		1596	includes the program name as first element.
		1597
		1598	=cut
		1599
		1600	sub env {
		1601	+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), $_[0]->envv }
		1602	}
		1603
		1604	=item $modifiermask = $term->ModLevel3Mask
		1605
		1606	=item $modifiermask = $term->ModMetaMask
		1607
		1608	=item $modifiermask = $term->ModNumLockMask
		1609
		1610	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
		1611	AltGr), the meta key (often Alt) and the num lock key, if applicable.
		1612
		1613	=item $screen = $term->current_screen
		1614
		1615	Returns the currently displayed screen (0 primary, 1 secondary).
		1616
		1617	=item $cursor_is_hidden = $term->hidden_cursor
		1618
		1619	Returns whether the cursor is currently hidden or not.
503		1620
504	=item $view_start = $term->view_start ([$newvalue])	1621	=item $view_start = $term->view_start ([$newvalue])
505		1622
506	Returns the negative row number of the topmost line. Minimum value is	1623	Returns the row number of the topmost displayed line. Maximum value is
507	C<0>, which displays the normal terminal contents. Larger values scroll	1624	C<0>, which displays the normal terminal contents. Lower values scroll
508	this many lines into the scrollback buffer.	1625	this many lines into the scrollback buffer.
509		1626
510	=item $term->want_refresh	1627	=item $term->want_refresh
511		1628
512	Requests a screen refresh. At the next opportunity, rxvt-unicode will	1629	Requests a screen refresh. At the next opportunity, rxvt-unicode will
…		…
515		1632
516	Used after changing terminal contents to display them.	1633	Used after changing terminal contents to display them.
517		1634
518	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])	1635	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
519		1636
520	Returns the text of the entire row with number C<$row_number>. Row C<0>	1637	Returns the text of the entire row with number C<$row_number>. Row C<< $term->top_row >>
521	is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost	1638	is the topmost terminal line, row C<< $term->nrow-1 >> is the bottommost
522	terminal line. The scrollback buffer starts at line C<-1> and extends to	1639	terminal line. Nothing will be returned if a nonexistent line
523	line C<< -$term->nsaved >>.	1640	is requested.
524		1641
525	If C<$new_text> is specified, it will replace characters in the current	1642	If C<$new_text> is specified, it will replace characters in the current
526	line, starting at column C<$start_col> (default C<0>), which is useful	1643	line, starting at column C<$start_col> (default C<0>), which is useful
527	to replace only parts of a line. The font index in the rendition will	1644	to replace only parts of a line. The font index in the rendition will
528	automatically be updated.	1645	automatically be updated.
529		1646
530	C<$text> is in a special encoding: tabs and wide characters that use more	1647	C<$text> is in a special encoding: tabs and wide characters that use more
531	than one cell when displayed are padded with urxvt::NOCHAR characters	1648	than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
532	(C<chr 65535>). Characters with combining characters and other characters	1649	characters. Characters with combining characters and other characters that
533	that do not fit into the normal tetx encoding will be replaced with	1650	do not fit into the normal text encoding will be replaced with characters
534	characters in the private use area.	1651	in the private use area.
535		1652
536	You have to obey this encoding when changing text. The advantage is	1653	You have to obey this encoding when changing text. The advantage is
537	that C<substr> and similar functions work on screen cells and not on	1654	that C<substr> and similar functions work on screen cells and not on
538	characters.	1655	characters.
539		1656
…		…
550		1667
551	See the section on RENDITION, above.	1668	See the section on RENDITION, above.
552		1669
553	=item $length = $term->ROW_l ($row_number[, $new_length])	1670	=item $length = $term->ROW_l ($row_number[, $new_length])
554		1671
555	Returns the number of screen cells that are in use ("the line length"). If	1672	Returns the number of screen cells that are in use ("the line
556	it is C<-1>, then the line is part of a multiple-row logical "line", which	1673	length"). Unlike the urxvt core, this returns C<< $term->ncol >> if the
557	means all characters are in use and it is continued on the next row.	1674	line is joined with the following one.
		1675
		1676	=item $bool = $term->is_longer ($row_number)
		1677
		1678	Returns true if the row is part of a multiple-row logical "line" (i.e.
		1679	joined with the following row), which means all characters are in use
		1680	and it is continued on the next row (and possibly a continuation of the
		1681	previous row(s)).
		1682
		1683	=item $line = $term->line ($row_number)
		1684
		1685	Create and return a new C<urxvt::line> object that stores information
		1686	about the logical line that row C<$row_number> is part of. It supports the
		1687	following methods:
		1688
		1689	=over 4
		1690
		1691	=item $text = $line->t ([$new_text])
		1692
		1693	Returns or replaces the full text of the line, similar to C<ROW_t>
		1694
		1695	=item $rend = $line->r ([$new_rend])
		1696
		1697	Returns or replaces the full rendition array of the line, similar to C<ROW_r>
		1698
		1699	=item $length = $line->l
		1700
		1701	Returns the length of the line in cells, similar to C<ROW_l>.
		1702
		1703	=item $rownum = $line->beg
		1704
		1705	=item $rownum = $line->end
		1706
		1707	Return the row number of the first/last row of the line, respectively.
		1708
		1709	=item $offset = $line->offset_of ($row, $col)
		1710
		1711	Returns the character offset of the given row|col pair within the logical
		1712	line. Works for rows outside the line, too, and returns corresponding
		1713	offsets outside the string.
		1714
		1715	=item ($row, $col) = $line->coord_of ($offset)
		1716
		1717	Translates a string offset into terminal coordinates again.
		1718
		1719	=back
		1720
		1721	=cut
		1722
		1723	sub line {
		1724	my ($self, $row) = @_;
		1725
		1726	my $maxrow = $self->nrow - 1;
		1727
		1728	my ($beg, $end) = ($row, $row);
		1729
		1730	--$beg while $self->ROW_is_longer ($beg - 1);
		1731	++$end while $self->ROW_is_longer ($end) && $end < $maxrow;
		1732
		1733	bless {
		1734	term => $self,
		1735	beg => $beg,
		1736	end => $end,
		1737	ncol => $self->ncol,
		1738	len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),
		1739	}, urxvt::line::
		1740	}
		1741
		1742	sub urxvt::line::t {
		1743	my ($self) = @_;
		1744
		1745	if (@_ > 1)
		1746	{
		1747	$self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
		1748	for $self->{beg} .. $self->{end};
		1749	}
		1750
		1751	defined wantarray &&
		1752	substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),
		1753	0, $self->{len}
		1754	}
		1755
		1756	sub urxvt::line::r {
		1757	my ($self) = @_;
		1758
		1759	if (@_ > 1)
		1760	{
		1761	$self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
		1762	for $self->{beg} .. $self->{end};
		1763	}
		1764
		1765	if (defined wantarray) {
		1766	my $rend = [
		1767	map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}
		1768	];
		1769	$#$rend = $self->{len} - 1;
		1770	return $rend;
		1771	}
		1772
		1773	()
		1774	}
		1775
		1776	sub urxvt::line::beg { $_[0]{beg} }
		1777	sub urxvt::line::end { $_[0]{end} }
		1778	sub urxvt::line::l { $_[0]{len} }
		1779
		1780	sub urxvt::line::offset_of {
		1781	my ($self, $row, $col) = @_;
		1782
		1783	($row - $self->{beg}) * $self->{ncol} + $col
		1784	}
		1785
		1786	sub urxvt::line::coord_of {
		1787	my ($self, $offset) = @_;
		1788
		1789	use integer;
		1790
		1791	(
		1792	$offset / $self->{ncol} + $self->{beg},
		1793	$offset % $self->{ncol}
		1794	)
		1795	}
558		1796
559	=item $text = $term->special_encode $string	1797	=item $text = $term->special_encode $string
560		1798
561	Converts a perl string into the special encoding used by rxvt-unicode,	1799	Converts a perl string into the special encoding used by rxvt-unicode,
562	where one character corresponds to one screen cell. See	1800	where one character corresponds to one screen cell. See
563	C<< $term->ROW_t >> for details.	1801	C<< $term->ROW_t >> for details.
564		1802
565	=item $string = $term->special_decode $text	1803	=item $string = $term->special_decode $text
566		1804
567	Converts rxvt-unicodes text reprsentation into a perl string. See	1805	Converts rxvt-unicodes text representation into a perl string. See
568	C<< $term->ROW_t >> for details.	1806	C<< $term->ROW_t >> for details.
569		1807
		1808	=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
		1809
		1810	=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
		1811
		1812	Register/unregister a synchronous button grab. See the XGrabButton
		1813	manpage.
		1814
		1815	=item $success = $term->grab ($eventtime[, $sync])
		1816
		1817	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
		1818	synchronous (C<$sync> is true). Also remembers the grab timestamp.
		1819
		1820	=item $term->allow_events_async
		1821
		1822	Calls XAllowEvents with AsyncBoth for the most recent grab.
		1823
		1824	=item $term->allow_events_sync
		1825
		1826	Calls XAllowEvents with SyncBoth for the most recent grab.
		1827
		1828	=item $term->allow_events_replay
		1829
		1830	Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
		1831	recent grab.
		1832
		1833	=item $term->ungrab
		1834
		1835	Calls XUngrab for the most recent grab. Is called automatically on
		1836	evaluation errors, as it is better to lose the grab in the error case as
		1837	the session.
		1838
		1839	=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
		1840
		1841	=item $atom_name = $term->XGetAtomName ($atom)
		1842
		1843	=item @atoms = $term->XListProperties ($window)
		1844
		1845	=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
		1846
		1847	=item $term->XChangeProperty ($window, $property, $type, $format, $octets)
		1848
		1849	=item $term->XDeleteProperty ($window, $property)
		1850
		1851	=item $window = $term->DefaultRootWindow
		1852
		1853	=item $term->XReparentWindow ($window, $parent, [$x, $y])
		1854
		1855	=item $term->XMapWindow ($window)
		1856
		1857	=item $term->XUnmapWindow ($window)
		1858
		1859	=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
		1860
		1861	=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
		1862
		1863	=item $term->XChangeInput ($window, $add_events[, $del_events])
		1864
		1865	Various X or X-related functions. The C<$term> object only serves as
		1866	the source of the display, otherwise those functions map more-or-less
		1867	directory onto the X functions of the same name.
		1868
570	=back	1869	=back
		1870
		1871	=cut
		1872
		1873	package urxvt::popup;
		1874
		1875	=head2 The C<urxvt::popup> Class
		1876
		1877	=over 4
		1878
		1879	=cut
		1880
		1881	sub add_item {
		1882	my ($self, $item) = @_;
		1883
		1884	$item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal};
		1885	$item->{rend}{hover} = "\x1b[0;30;46m" unless exists $item->{rend}{hover};
		1886	$item->{rend}{active} = "\x1b[m" unless exists $item->{rend}{active};
		1887
		1888	$item->{render} ||= sub { $_[0]{text} };
		1889
		1890	push @{ $self->{item} }, $item;
		1891	}
		1892
		1893	=item $popup->add_title ($title)
		1894
		1895	Adds a non-clickable title to the popup.
		1896
		1897	=cut
		1898
		1899	sub add_title {
		1900	my ($self, $title) = @_;
		1901
		1902	$self->add_item ({
		1903	rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
		1904	text => $title,
		1905	activate => sub { },
		1906	});
		1907	}
		1908
		1909	=item $popup->add_separator ([$sepchr])
		1910
		1911	Creates a separator, optionally using the character given as C<$sepchr>.
		1912
		1913	=cut
		1914
		1915	sub add_separator {
		1916	my ($self, $sep) = @_;
		1917
		1918	$sep ||= "=";
		1919
		1920	$self->add_item ({
		1921	rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
		1922	text => "",
		1923	render => sub { $sep x $self->{term}->ncol },
		1924	activate => sub { },
		1925	});
		1926	}
		1927
		1928	=item $popup->add_button ($text, $cb)
		1929
		1930	Adds a clickable button to the popup. C<$cb> is called whenever it is
		1931	selected.
		1932
		1933	=cut
		1934
		1935	sub add_button {
		1936	my ($self, $text, $cb) = @_;
		1937
		1938	$self->add_item ({ type => "button", text => $text, activate => $cb});
		1939	}
		1940
		1941	=item $popup->add_toggle ($text, $initial_value, $cb)
		1942
		1943	Adds a toggle/checkbox item to the popup. The callback gets called
		1944	whenever it gets toggled, with a boolean indicating its new value as its
		1945	first argument.
		1946
		1947	=cut
		1948
		1949	sub add_toggle {
		1950	my ($self, $text, $value, $cb) = @_;
		1951
		1952	my $item; $item = {
		1953	type => "button",
		1954	text => " $text",
		1955	value => $value,
		1956	render => sub { ($_[0]{value} ? "* " : " ") . $text },
		1957	activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
		1958	};
		1959
		1960	$self->add_item ($item);
		1961	}
		1962
		1963	=item $popup->show
		1964
		1965	Displays the popup (which is initially hidden).
		1966
		1967	=cut
		1968
		1969	sub show {
		1970	my ($self) = @_;
		1971
		1972	local $urxvt::popup::self = $self;
		1973
		1974	my $env = $self->{term}->env;
		1975	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
		1976	delete $env->{LC_ALL};
		1977	$env->{LC_CTYPE} = $self->{term}->locale;
		1978
		1979	my $term = urxvt::term->new (
		1980	$env, "popup",
		1981	"--perl-lib" => "", "--perl-ext-common" => "",
		1982	"-pty-fd" => -1, "-sl" => 0,
		1983	"-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
		1984	"--transient-for" => $self->{term}->parent,
		1985	"-display" => $self->{term}->display_id,
		1986	"-pe" => "urxvt-popup",
		1987	) or die "unable to create popup window\n";
		1988
		1989	unless (delete $term->{urxvt_popup_init_done}) {
		1990	$term->ungrab;
		1991	$term->destroy;
		1992	die "unable to initialise popup window\n";
		1993	}
		1994	}
		1995
		1996	sub DESTROY {
		1997	my ($self) = @_;
		1998
		1999	delete $self->{term}{_destroy}{$self};
		2000	$self->{term}->ungrab;
		2001	}
		2002
		2003	=back
		2004
		2005	=cut
		2006
		2007	package urxvt::watcher;
571		2008
572	=head2 The C<urxvt::timer> Class	2009	=head2 The C<urxvt::timer> Class
573		2010
574	This class implements timer watchers/events. Time is represented as a	2011	This class implements timer watchers/events. Time is represented as a
575	fractional number of seconds since the epoch. Example:	2012	fractional number of seconds since the epoch. Example:
…		…
579	->new	2016	->new
580	->interval (1)	2017	->interval (1)
581	->cb (sub {	2018	->cb (sub {
582	$term->{overlay}->set (0, 0,	2019	$term->{overlay}->set (0, 0,
583	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);	2020	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
584	});	2021	});
585		2022
586	=over 4	2023	=over 4
587		2024
588	=item $timer = new urxvt::timer	2025	=item $timer = new urxvt::timer
589		2026
…		…
613	Start the timer.	2050	Start the timer.
614		2051
615	=item $timer = $timer->start ($tstamp)	2052	=item $timer = $timer->start ($tstamp)
616		2053
617	Set the event trigger time to C<$tstamp> and start the timer.	2054	Set the event trigger time to C<$tstamp> and start the timer.
		2055
		2056	=item $timer = $timer->after ($delay)
		2057
		2058	Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
618		2059
619	=item $timer = $timer->stop	2060	=item $timer = $timer->stop
620		2061
621	Stop the timer.	2062	Stop the timer.
622		2063
…		…
628		2069
629	$term->{socket} = ...	2070	$term->{socket} = ...
630	$term->{iow} = urxvt::iow	2071	$term->{iow} = urxvt::iow
631	->new	2072	->new
632	->fd (fileno $term->{socket})	2073	->fd (fileno $term->{socket})
633	->events (1) # wait for read data	2074	->events (urxvt::EV_READ)
634	->start	2075	->start
635	->cb (sub {	2076	->cb (sub {
636	my ($iow, $revents) = @_;	2077	my ($iow, $revents) = @_;
637	# $revents must be 1 here, no need to check	2078	# $revents must be 1 here, no need to check
638	sysread $term->{socket}, my $buf, 8192	2079	sysread $term->{socket}, my $buf, 8192
…		…
651	Set the callback to be called when io events are triggered. C<$reventmask>	2092	Set the callback to be called when io events are triggered. C<$reventmask>
652	is a bitset as described in the C<events> method.	2093	is a bitset as described in the C<events> method.
653		2094
654	=item $iow = $iow->fd ($fd)	2095	=item $iow = $iow->fd ($fd)
655		2096
656	Set the filedescriptor (not handle) to watch.	2097	Set the file descriptor (not handle) to watch.
657		2098
658	=item $iow = $iow->events ($eventmask)	2099	=item $iow = $iow->events ($eventmask)
659		2100
660	Set the event mask to watch. Bit #0 (value C<1>) enables watching for read	2101	Set the event mask to watch. The only allowed values are
661	data, Bit #1 (value C<2>) enables watching for write data.	2102	C<urxvt::EV_READ> and C<urxvt::EV_WRITE>, which might be ORed
		2103	together, or C<urxvt::EV_NONE>.
662		2104
663	=item $iow = $iow->start	2105	=item $iow = $iow->start
664		2106
665	Start watching for requested events on the given handle.	2107	Start watching for requested events on the given handle.
666		2108
667	=item $iow = $iow->stop	2109	=item $iow = $iow->stop
668		2110
669	Stop watching for events on the given filehandle.	2111	Stop watching for events on the given file handle.
		2112
		2113	=back
		2114
		2115	=head2 The C<urxvt::iw> Class
		2116
		2117	This class implements idle watchers, that get called automatically when
		2118	the process is idle. They should return as fast as possible, after doing
		2119	some useful work.
		2120
		2121	=over 4
		2122
		2123	=item $iw = new urxvt::iw
		2124
		2125	Create a new idle watcher object in stopped state.
		2126
		2127	=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
		2128
		2129	Set the callback to be called when the watcher triggers.
		2130
		2131	=item $timer = $timer->start
		2132
		2133	Start the watcher.
		2134
		2135	=item $timer = $timer->stop
		2136
		2137	Stop the watcher.
		2138
		2139	=back
		2140
		2141	=head2 The C<urxvt::pw> Class
		2142
		2143	This class implements process watchers. They create an event whenever a
		2144	process exits, after which they stop automatically.
		2145
		2146	my $pid = fork;
		2147	...
		2148	$term->{pw} = urxvt::pw
		2149	->new
		2150	->start ($pid)
		2151	->cb (sub {
		2152	my ($pw, $exit_status) = @_;
		2153	...
		2154	});
		2155
		2156	=over 4
		2157
		2158	=item $pw = new urxvt::pw
		2159
		2160	Create a new process watcher in stopped state.
		2161
		2162	=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
		2163
		2164	Set the callback to be called when the timer triggers.
		2165
		2166	=item $pw = $timer->start ($pid)
		2167
		2168	Tells the watcher to start watching for process C<$pid>.
		2169
		2170	=item $pw = $pw->stop
		2171
		2172	Stop the watcher.
670		2173
671	=back	2174	=back
672		2175
673	=head1 ENVIRONMENT	2176	=head1 ENVIRONMENT
674		2177
…		…
677	This variable controls the verbosity level of the perl extension. Higher	2180	This variable controls the verbosity level of the perl extension. Higher
678	numbers indicate more verbose output.	2181	numbers indicate more verbose output.
679		2182
680	=over 4	2183	=over 4
681		2184
682	=item 0 - only fatal messages	2185	=item == 0 - fatal messages
683		2186
684	=item 3 - script loading and management	2187	=item >= 3 - script loading and management
685		2188
686	=item 10 - all events received	2189	=item >=10 - all called hooks
		2190
		2191	=item >=11 - hook return values
687		2192
688	=back	2193	=back
689		2194
690	=head1 AUTHOR	2195	=head1 AUTHOR
691		2196
…		…
693	http://software.schmorp.de/pkg/rxvt-unicode	2198	http://software.schmorp.de/pkg/rxvt-unicode
694		2199
695	=cut	2200	=cut
696		2201
697	1	2202	1
		2203
		2204	# vim: sw=3:

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