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Comparing rxvt-unicode/src/urxvt.pm (file contents):
Revision 1.95 by elmex, Tue Jan 17 13:19:45 2006 UTC vs.
Revision 1.207 by root, Tue Jun 5 21:29:52 2012 UTC

…		…
17		17
18	@@RXVT_NAME@@ --perl-lib $HOME -pe grab_test	18	@@RXVT_NAME@@ --perl-lib $HOME -pe grab_test
19		19
20	=head1 DESCRIPTION	20	=head1 DESCRIPTION
21		21
22	Everytime a terminal object gets created, extension scripts specified via	22	Every time a terminal object gets created, extension scripts specified via
23	the C<perl> resource are loaded and associated with it.	23	the C<perl> resource are loaded and associated with it.
24		24
25	Scripts are compiled in a 'use strict' and 'use utf8' environment, and	25	Scripts are compiled in a 'use strict' and 'use utf8' environment, and
26	thus must be encoded as UTF-8.	26	thus must be encoded as UTF-8.
27		27
28	Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where	28	Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where
29	scripts will be shared (but not enabled) for all terminals.	29	scripts will be shared (but not enabled) for all terminals.
30		30
		31	You can disable the embedded perl interpreter by setting both "perl-ext"
		32	and "perl-ext-common" resources to the empty string.
		33
31	=head1 PREPACKAGED EXTENSIONS	34	=head1 PREPACKAGED EXTENSIONS
32		35
33	This section describes the extensions delivered with this release. 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>
		42
		43	Or by adding them to the resource for extensions loaded by default:
		44
		45	URxvt.perl-ext-common: default,selection-autotransform
39		46
40	=over 4	47	=over 4
41		48
42	=item selection (enabled by default)	49	=item selection (enabled by default)
43		50
…		…
58	URxvt.selection.pattern-1: perl-regex	65	URxvt.selection.pattern-1: perl-regex
59	...	66	...
60		67
61	The index number (0, 1...) must not have any holes, and each regex must	68	The index number (0, 1...) must not have any holes, and each regex must
62	contain at least one pair of capturing parentheses, which will be used for	69	contain at least one pair of capturing parentheses, which will be used for
63	the match. For example, the followign adds a regex that matches everything	70	the match. For example, the following adds a regex that matches everything
64	between two vertical bars:	71	between two vertical bars:
65		72
66	URxvt.selection.pattern-0: \\|([^|]+)\\|	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: ^(/[^:]+):\
67		81
68	You can look at the source of the selection extension to see more	82	You can look at the source of the selection extension to see more
69	interesting uses, such as parsing a line from beginning to end.	83	interesting uses, such as parsing a line from beginning to end.
70		84
71	This extension also offers following bindable keyboard commands:	85	This extension also offers following bindable keyboard commands:
…		…
76		90
77	Rot-13 the selection when activated. Used via keyboard trigger:	91	Rot-13 the selection when activated. Used via keyboard trigger:
78		92
79	URxvt.keysym.C-M-r: perl:selection:rot13	93	URxvt.keysym.C-M-r: perl:selection:rot13
80		94
81	=item remote-pastebin
82
83	Upload the selection as textfile to a remote site.
84
85	URxvt.keysym.C-M-e: perl:selection:remote-pastebin
86
87	To set the command to upload the file set this resource:
88
89	URxvt.selection-pastebin-cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
90
91	The % is the placeholder for the textfile. The name of the textfile is the hex encoded
92	md5 sum of the selection.
93	After an successful upload the selection will be replaced by the following url
94	(the % is the placeholder for the filename):
95
96	URxvt.selection-pastebin-url: http://www.ta-sa.org/files/txt/%
97
98	=back	95	=back
99		96
100	=item option-popup (enabled by default)	97	=item option-popup (enabled by default)
101		98
102	Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at	99	Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at
103	runtime.	100	runtime.
104		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
105	=item selection-popup (enabled by default)	119	=item selection-popup (enabled by default)
106		120
107	Binds a popup menu to Ctrl-Button3 that lets you convert the selection	121	Binds a popup menu to Ctrl-Button3 that lets you convert the selection
108	text into various other formats/action (such as uri unescaping, perl	122	text into various other formats/action (such as uri unescaping, perl
109	evalution, web-browser starting etc.), depending on content.	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	};
110		143
111	=item searchable-scrollback<hotkey> (enabled by default)	144	=item searchable-scrollback<hotkey> (enabled by default)
112		145
113	Adds regex search functionality to the scrollback buffer, triggered	146	Adds regex search functionality to the scrollback buffer, triggered
114	by a hotkey (default: C<M-s>). While in search mode, normal terminal	147	by a hotkey (default: C<M-s>). While in search mode, normal terminal
…		…
119	search. C<BackSpace> removes a character from the regex, C<Up> and C<Down>	152	search. C<BackSpace> removes a character from the regex, C<Up> and C<Down>
120	search upwards/downwards in the scrollback buffer, C<End> jumps to the	153	search upwards/downwards in the scrollback buffer, C<End> jumps to the
121	bottom. C<Escape> leaves search mode and returns to the point where search	154	bottom. C<Escape> leaves search mode and returns to the point where search
122	was started, while C<Enter> or C<Return> stay at the current position and	155	was started, while C<Enter> or C<Return> stay at the current position and
123	additionally stores the first match in the current line into the primary	156	additionally stores the first match in the current line into the primary
124	selection.	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.
125		189
126	=item selection-autotransform	190	=item selection-autotransform
127		191
128	This selection allows you to do automatic transforms on a selection	192	This selection allows you to do automatic transforms on a selection
129	whenever a selection is made.	193	whenever a selection is made.
…		…
142	URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/	206	URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
143		207
144	And this example matches the same,but replaces it with vi-commands you can	208	And this example matches the same,but replaces it with vi-commands you can
145	paste directly into your (vi :) editor:	209	paste directly into your (vi :) editor:
146		210
147	URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/\\x1b:e \\Q$1\\E\\x0d:$2\\x0d/	211	URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
148		212
149	Of course, this can be modified to suit your needs and your editor :)	213	Of course, this can be modified to suit your needs and your editor :)
150		214
151	To expand the example above to typical perl error messages ("XXX at	215	To expand the example above to typical perl error messages ("XXX at
152	FILENAME line YYY."), you need a slightly more elaborate solution:	216	FILENAME line YYY."), you need a slightly more elaborate solution:
153		217
154	URxvt.selection.pattern-0: ( at .*? line \\d+\\.)	218	URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
155	URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)\\.$/\x1b:e \\Q$1\E\\x0d:$2\\x0d/	219	URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
156		220
157	The first line tells the selection code to treat the unchanging part of	221	The first line tells the selection code to treat the unchanging part of
158	every error message as a selection pattern, and the second line transforms	222	every error message as a selection pattern, and the second line transforms
159	the message into vi commands to load the file.	223	the message into vi commands to load the file.
160		224
161	=item mark-urls	225	=item tabbed
162		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
163	Uses per-line display filtering (C<on_line_update>) to underline urls and	250	Uses per-line display filtering (C<on_line_update>) to underline text
164	make them clickable. When middle-clicked, the program specified in the	251	matching a certain pattern and make it clickable. When clicked with the
165	resource C<urlLauncher> (default C<x-www-browser>) will be started with	252	mouse button specified in the C<matcher.button> resource (default 2, or
166	the URL as first argument.	253	middle), the program specified in the C<matcher.launcher> resource
		254	(default, the C<urlLauncher> resource, C<sensible-browser>) will be started
		255	with the matched text as first argument. The default configuration is
		256	suitable for matching URLs and launching a web browser, like the
		257	former "mark-urls" extension.
		258
		259	The default pattern to match URLs can be overridden with the
		260	C<matcher.pattern.0> resource, and additional patterns can be specified
		261	with numbered patterns, in a manner similar to the "selection" extension.
		262	The launcher can also be overridden on a per-pattern basis.
		263
		264	It is possible to activate the most recently seen match or a list of matches
		265	from the keyboard. Simply bind a keysym to "perl:matcher:last" or
		266	"perl:matcher:list" as seen in the example below.
		267
		268	Example configuration:
		269
		270	URxvt.perl-ext: default,matcher
		271	URxvt.urlLauncher: sensible-browser
		272	URxvt.keysym.C-Delete: perl:matcher:last
		273	URxvt.keysym.M-Delete: perl:matcher:list
		274	URxvt.matcher.button: 1
		275	URxvt.matcher.pattern.1: \\bwww\\.[\\w-]+\\.[\\w./?&@#-]*[\\w/-]
		276	URxvt.matcher.pattern.2: \\B(/\\S+?):(\\d+)(?=:|$)
		277	URxvt.matcher.launcher.2: gvim +$2 $1
		278
		279	=item xim-onthespot
		280
		281	This (experimental) perl extension implements OnTheSpot editing. It does
		282	not work perfectly, and some input methods don't seem to work well with
		283	OnTheSpot editing in general, but it seems to work at least for SCIM and
		284	kinput2.
		285
		286	You enable it by specifying this extension and a preedit style of
		287	C<OnTheSpot>, i.e.:
		288
		289	@@RXVT_NAME@@ -pt OnTheSpot -pe xim-onthespot
		290
		291	=item kuake<hotkey>
		292
		293	A very primitive quake-console-like extension. It was inspired by a
		294	description of how the programs C<kuake> and C<yakuake> work: Whenever the
		295	user presses a global accelerator key (by default C<F10>), the terminal
		296	will show or hide itself. Another press of the accelerator key will hide
		297	or show it again.
		298
		299	Initially, the window will not be shown when using this extension.
		300
		301	This is useful if you need a single terminal that is not using any desktop
		302	space most of the time but is quickly available at the press of a key.
		303
		304	The accelerator key is grabbed regardless of any modifiers, so this
		305	extension will actually grab a physical key just for this function.
		306
		307	If you want a quake-like animation, tell your window manager to do so
		308	(fvwm can do it).
		309
		310	=item overlay-osc
		311
		312	This extension implements some OSC commands to display timed popups on the
		313	screen - useful for status displays from within scripts. You have to read
		314	the sources for more info.
167		315
168	=item block-graphics-to-ascii	316	=item block-graphics-to-ascii
169		317
170	A not very useful example of filtering all text output to the terminal,	318	A not very useful example of filtering all text output to the terminal
171	by replacing all line-drawing characters (U+2500 .. U+259F) by a	319	by replacing all line-drawing characters (U+2500 .. U+259F) by a
172	similar-looking ascii character.	320	similar-looking ascii character.
173		321
174	=item digital-clock	322	=item digital-clock
175		323
176	Displays a digital clock using the built-in overlay.	324	Displays a digital clock using the built-in overlay.
		325
		326	=item remote-clipboard
		327
		328	Somewhat of a misnomer, this extension adds two menu entries to the
		329	selection popup that allows one to run external commands to store the
		330	selection somewhere and fetch it again.
		331
		332	We use it to implement a "distributed selection mechanism", which just
		333	means that one command uploads the file to a remote server, and another
		334	reads it.
		335
		336	The commands can be set using the C<URxvt.remote-selection.store> and
		337	C<URxvt.remote-selection.fetch> resources. The first should read the
		338	selection to store from STDIN (always in UTF-8), the second should provide
		339	the selection data on STDOUT (also in UTF-8).
		340
		341	The defaults (which are likely useless to you) use rsh and cat:
		342
		343	URxvt.remote-selection.store: rsh ruth 'cat >/tmp/distributed-selection'
		344	URxvt.remote-selection.fetch: rsh ruth 'cat /tmp/distributed-selection'
		345
		346	=item selection-pastebin
		347
		348	This is a little rarely useful extension that uploads the selection as
		349	textfile to a remote site (or does other things). (The implementation is
		350	not currently secure for use in a multiuser environment as it writes to
		351	F</tmp> directly.).
		352
		353	It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
		354	i.e.
		355
		356	URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
		357
		358	Pressing this combination runs a command with C<%> replaced by the name of
		359	the textfile. This command can be set via a resource:
		360
		361	URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
		362
		363	And the default is likely not useful to anybody but the few people around
		364	here :)
		365
		366	The name of the textfile is the hex encoded md5 sum of the selection, so
		367	the same content should lead to the same filename.
		368
		369	After a successful upload the selection will be replaced by the text given
		370	in the C<selection-pastebin-url> resource (again, the % is the placeholder
		371	for the filename):
		372
		373	URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
		374
		375	I<Note to xrdb users:> xrdb uses the C preprocessor, which might interpret
		376	the double C</> characters as comment start. Use C<\057\057> instead,
		377	which works regardless of whether xrdb is used to parse the resource file
		378	or not.
		379
		380	=item macosx-clipboard and macosx-clipboard-native
		381
		382	These two modules implement an extended clipboard for Mac OS X. They are
		383	used like this:
		384
		385	URxvt.perl-ext-common: default,macosx-clipboard
		386	URxvt.keysym.M-c: perl:macosx-clipboard:copy
		387	URxvt.keysym.M-v: perl:macosx-clipboard:paste
		388
		389	The difference between them is that the native variant requires a
		390	perl from apple's devkit or so, and C<macosx-clipboard> requires the
		391	C<Mac::Pasteboard> module, works with other perls, has fewer bugs, is
		392	simpler etc. etc.
177		393
178	=item example-refresh-hooks	394	=item example-refresh-hooks
179		395
180	Displays a very simple digital clock in the upper right corner of the	396	Displays a very simple digital clock in the upper right corner of the
181	window. Illustrates overwriting the refresh callbacks to create your own	397	window. Illustrates overwriting the refresh callbacks to create your own
182	overlays or changes.	398	overlays or changes.
		399
		400	=item confirm-paste
		401
		402	Displays a confirmation dialog when a paste containing at least a full
		403	line is detected.
		404
		405	=item bell-command
		406
		407	Runs the command specified by the C<URxvt.bell-command> resource when
		408	a bell event occurs. For example, the following pops up a notification
		409	bubble with the text "Beep, Beep" using notify-send:
		410
		411	URxvt.bell-command: notify-send "Beep, Beep"
183		412
184	=back	413	=back
185		414
186	=head1 API DOCUMENTATION	415	=head1 API DOCUMENTATION
187		416
…		…
203		432
204	=over 4	433	=over 4
205		434
206	=item $text	435	=item $text
207		436
208	Rxvt-unicodes special way of encoding text, where one "unicode" character	437	Rxvt-unicode's special way of encoding text, where one "unicode" character
209	always represents one screen cell. See L<ROW_t> for a discussion of this format.	438	always represents one screen cell. See L<ROW_t> for a discussion of this format.
210		439
211	=item $string	440	=item $string
212		441
213	A perl text string, with an emphasis on I<text>. It can store all unicode	442	A perl text string, with an emphasis on I<text>. It can store all unicode
…		…
217	=item $octets	446	=item $octets
218		447
219	Either binary data or - more common - a text string encoded in a	448	Either binary data or - more common - a text string encoded in a
220	locale-specific way.	449	locale-specific way.
221		450
		451	=item $keysym
		452
		453	an integer that is a valid X11 keysym code. You can convert a string
		454	into a keysym and viceversa by using C<XStringToKeysym> and
		455	C<XKeysymToString>.
		456
222	=back	457	=back
223		458
224	=head2 Extension Objects	459	=head2 Extension Objects
225		460
226	Very perl extension is a perl class. A separate perl object is created	461	Every perl extension is a perl class. A separate perl object is created
227	for each terminal and each extension and passed as the first parameter to	462	for each terminal, and each terminal has its own set of extension objects,
228	hooks. So extensions can use their C<$self> object without having to think	463	which are passed as the first parameter to hooks. So extensions can use
229	about other extensions, with the exception of methods and members that	464	their C<$self> object without having to think about clashes with other
		465	extensions or other terminals, with the exception of methods and members
230	begin with an underscore character C<_>: these are reserved for internal	466	that begin with an underscore character C<_>: these are reserved for
231	use.	467	internal use.
232		468
233	Although it isn't a C<urxvt::term> object, you can call all methods of the	469	Although it isn't a C<urxvt::term> object, you can call all methods of the
234	C<urxvt::term> class on this object.	470	C<urxvt::term> class on this object.
235		471
236	It has the following methods and data members:	472	It has the following methods and data members:
…		…
257	=head2 Hooks	493	=head2 Hooks
258		494
259	The following subroutines can be declared in extension files, and will be	495	The following subroutines can be declared in extension files, and will be
260	called whenever the relevant event happens.	496	called whenever the relevant event happens.
261		497
262	The first argument passed to them is an extension oject as described in	498	The first argument passed to them is an extension object as described in
263	the in the C<Extension Objects> section.	499	the in the C<Extension Objects> section.
264		500
265	B<All> of these hooks must return a boolean value. If it is true, then the	501	B<All> of these hooks must return a boolean value. If any of the called
266	event counts as being I<consumed>, and the invocation of other hooks is	502	hooks returns true, then the event counts as being I<consumed>, and the
267	skipped, and the relevant action might not be carried out by the C++ code.	503	relevant action might not be carried out by the C++ code.
268		504
269	I<< When in doubt, return a false value (preferably C<()>). >>	505	I<< When in doubt, return a false value (preferably C<()>). >>
270		506
271	=over 4	507	=over 4
272		508
273	=item on_init $term	509	=item on_init $term
274		510
275	Called after a new terminal object has been initialized, but before	511	Called after a new terminal object has been initialized, but before
276	windows are created or the command gets run. Most methods are unsafe to	512	windows are created or the command gets run. Most methods are unsafe to
277	call or deliver senseless data, as terminal size and other characteristics	513	call or deliver senseless data, as terminal size and other characteristics
278	have not yet been determined. You can safely query and change resources,	514	have not yet been determined. You can safely query and change resources
279	though.	515	and options, though. For many purposes the C<on_start> hook is a better
		516	place.
		517
		518	=item on_start $term
		519
		520	Called at the very end of initialisation of a new terminal, just before
		521	trying to map (display) the toplevel and returning to the main loop.
		522
		523	=item on_destroy $term
		524
		525	Called whenever something tries to destroy terminal, when the terminal is
		526	still fully functional (not for long, though).
280		527
281	=item on_reset $term	528	=item on_reset $term
282		529
283	Called after the screen is "reset" for any reason, such as resizing or	530	Called after the screen is "reset" for any reason, such as resizing or
284	control sequences. Here is where you can react on changes to size-related	531	control sequences. Here is where you can react on changes to size-related
285	variables.	532	variables.
286		533
287	=item on_start $term	534	=item on_child_start $term, $pid
288		535
289	Called at the very end of initialisation of a new terminal, just before	536	Called just after the child process has been C<fork>ed.
290	returning to the mainloop.	537
		538	=item on_child_exit $term, $status
		539
		540	Called just after the child process has exited. C<$status> is the status
		541	from C<waitpid>.
291		542
292	=item on_sel_make $term, $eventtime	543	=item on_sel_make $term, $eventtime
293		544
294	Called whenever a selection has been made by the user, but before the	545	Called whenever a selection has been made by the user, but before the
295	selection text is copied, so changes to the beginning, end or type of the	546	selection text is copied, so changes to the beginning, end or type of the
…		…
302		553
303	Called whenever a selection has been copied, but before the selection is	554	Called whenever a selection has been copied, but before the selection is
304	requested from the server. The selection text can be queried and changed	555	requested from the server. The selection text can be queried and changed
305	by calling C<< $term->selection >>.	556	by calling C<< $term->selection >>.
306		557
307	Returning a true value aborts selection grabbing. It will still be hilighted.	558	Returning a true value aborts selection grabbing. It will still be highlighted.
308		559
309	=item on_sel_extend $term	560	=item on_sel_extend $term
310		561
311	Called whenever the user tries to extend the selection (e.g. with a double	562	Called whenever the user tries to extend the selection (e.g. with a double
312	click) and is either supposed to return false (normal operation), or	563	click) and is either supposed to return false (normal operation), or
313	should extend the selection itelf and return true to suppress the built-in	564	should extend the selection itself and return true to suppress the built-in
314	processing. This can happen multiple times, as long as the callback	565	processing. This can happen multiple times, as long as the callback
315	returns true, it will be called on every further click by the user and is	566	returns true, it will be called on every further click by the user and is
316	supposed to enlarge the selection more and more, if possible.	567	supposed to enlarge the selection more and more, if possible.
317		568
318	See the F<selection> example extension.	569	See the F<selection> example extension.
319		570
320	=item on_view_change $term, $offset	571	=item on_view_change $term, $offset
321		572
322	Called whenever the view offset changes, i..e the user or program	573	Called whenever the view offset changes, i.e. the user or program
323	scrolls. Offset C<0> means display the normal terminal, positive values	574	scrolls. Offset C<0> means display the normal terminal, positive values
324	show this many lines of scrollback.	575	show this many lines of scrollback.
325		576
326	=item on_scroll_back $term, $lines, $saved	577	=item on_scroll_back $term, $lines, $saved
327		578
…		…
331		582
332	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,	583	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
333	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total	584	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
334	number of lines that will be in the scrollback buffer.	585	number of lines that will be in the scrollback buffer.
335		586
336	=item on_osc_seq $term, $string	587	=item on_osc_seq $term, $op, $args, $resp
		588
		589	Called on every OSC sequence and can be used to suppress it or modify its
		590	behaviour. The default should be to return an empty list. A true value
		591	suppresses execution of the request completely. Make sure you don't get
		592	confused by recursive invocations when you output an OSC sequence within
		593	this callback.
		594
		595	C<on_osc_seq_perl> should be used for new behaviour.
		596
		597	=item on_osc_seq_perl $term, $args, $resp
337		598
338	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =	599	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
339	operating system command) is processed. Cursor position and other state	600	operating system command) is processed. Cursor position and other state
340	information is up-to-date when this happens. For interoperability, the	601	information is up-to-date when this happens. For interoperability, the
341	string should start with the extension name and a colon, to distinguish	602	string should start with the extension name (sans -osc) and a semicolon,
342	it from commands for other extensions, and this might be enforced in the	603	to distinguish it from commands for other extensions, and this might be
343	future.	604	enforced in the future.
		605
		606	For example, C<overlay-osc> uses this:
		607
		608	sub on_osc_seq_perl {
		609	my ($self, $osc, $resp) = @_;
		610
		611	return unless $osc =~ s/^overlay;//;
		612
		613	... process remaining $osc string
		614	}
344		615
345	Be careful not ever to trust (in a security sense) the data you receive,	616	Be careful not ever to trust (in a security sense) the data you receive,
346	as its source can not easily be controleld (e-mail content, messages from	617	as its source can not easily be controlled (e-mail content, messages from
347	other users on the same system etc.).	618	other users on the same system etc.).
		619
		620	For responses, C<$resp> contains the end-of-args separator used by the
		621	sender.
348		622
349	=item on_add_lines $term, $string	623	=item on_add_lines $term, $string
350		624
351	Called whenever text is about to be output, with the text as argument. You	625	Called whenever text is about to be output, with the text as argument. You
352	can filter/change and output the text yourself by returning a true value	626	can filter/change and output the text yourself by returning a true value
…		…
357	=item on_tt_write $term, $octets	631	=item on_tt_write $term, $octets
358		632
359	Called whenever some data is written to the tty/pty and can be used to	633	Called whenever some data is written to the tty/pty and can be used to
360	suppress or filter tty input.	634	suppress or filter tty input.
361		635
		636	=item on_tt_paste $term, $octets
		637
		638	Called whenever text is about to be pasted, with the text as argument. You
		639	can filter/change and paste the text yourself by returning a true value
		640	and calling C<< $term->tt_paste >> yourself. C<$octets> is
		641	locale-encoded.
		642
362	=item on_line_update $term, $row	643	=item on_line_update $term, $row
363		644
364	Called whenever a line was updated or changed. Can be used to filter	645	Called whenever a line was updated or changed. Can be used to filter
365	screen output (e.g. underline urls or other useless stuff). Only lines	646	screen output (e.g. underline urls or other useless stuff). Only lines
366	that are being shown will be filtered, and, due to performance reasons,	647	that are being shown will be filtered, and, due to performance reasons,
…		…
373	later with the already-modified line (e.g. if unrelated parts change), so	654	later with the already-modified line (e.g. if unrelated parts change), so
374	you cannot just toggle rendition bits, but only set them.	655	you cannot just toggle rendition bits, but only set them.
375		656
376	=item on_refresh_begin $term	657	=item on_refresh_begin $term
377		658
378	Called just before the screen gets redrawn. Can be used for overlay	659	Called just before the screen gets redrawn. Can be used for overlay or
379	or similar effects by modify terminal contents in refresh_begin, and	660	similar effects by modifying the terminal contents in refresh_begin, and
380	restoring them in refresh_end. The built-in overlay and selection display	661	restoring them in refresh_end. The built-in overlay and selection display
381	code is run after this hook, and takes precedence.	662	code is run after this hook, and takes precedence.
382		663
383	=item on_refresh_end $term	664	=item on_refresh_end $term
384		665
385	Called just after the screen gets redrawn. See C<on_refresh_begin>.	666	Called just after the screen gets redrawn. See C<on_refresh_begin>.
386		667
387	=item on_keyboard_command $term, $string	668	=item on_user_command $term, $string
388		669
389	Called whenever the user presses a key combination that has a	670	Called whenever a user-configured event is being activated (e.g. via
390	C<perl:string> action bound to it (see description of the B<keysym>	671	a C<perl:string> action bound to a key, see description of the B<keysym>
391	resource in the @@RXVT_NAME@@(1) manpage).	672	resource in the @@RXVT_NAME@@(1) manpage).
		673
		674	The event is simply the action string. This interface is assumed to change
		675	slightly in the future.
		676
		677	=item on_register_command $term, $keysym, $modifiermask, $string
		678
		679	Called after parsing a keysym resource but before registering the
		680	associated binding. If this hook returns TRUE the binding is not
		681	registered. It can be used to modify a binding by calling
		682	C<register_command>.
		683
		684	=item on_resize_all_windows $term, $new_width, $new_height
		685
		686	Called just after the new window size has been calculated, but before
		687	windows are actually being resized or hints are being set. If this hook
		688	returns TRUE, setting of the window hints is being skipped.
392		689
393	=item on_x_event $term, $event	690	=item on_x_event $term, $event
394		691
395	Called on every X event received on the vt window (and possibly other	692	Called on every X event received on the vt window (and possibly other
396	windows). Should only be used as a last resort. Most event structure	693	windows). Should only be used as a last resort. Most event structure
397	members are not passed.	694	members are not passed.
398		695
		696	=item on_root_event $term, $event
		697
		698	Like C<on_x_event>, but is called for events on the root window.
		699
399	=item on_focus_in $term	700	=item on_focus_in $term
400		701
401	Called whenever the window gets the keyboard focus, before rxvt-unicode	702	Called whenever the window gets the keyboard focus, before rxvt-unicode
402	does focus in processing.	703	does focus in processing.
403		704
404	=item on_focus_out $term	705	=item on_focus_out $term
405		706
406	Called wheneever the window loses keyboard focus, before rxvt-unicode does	707	Called whenever the window loses keyboard focus, before rxvt-unicode does
407	focus out processing.	708	focus out processing.
408		709
		710	=item on_configure_notify $term, $event
		711
		712	=item on_property_notify $term, $event
		713
409	=item on_key_press $term, $event, $keysym, $octets	714	=item on_key_press $term, $event, $keysym, $octets
410		715
411	=item on_key_release $term, $event, $keysym	716	=item on_key_release $term, $event, $keysym
412		717
413	=item on_button_press $term, $event	718	=item on_button_press $term, $event
…		…
418		723
419	=item on_map_notify $term, $event	724	=item on_map_notify $term, $event
420		725
421	=item on_unmap_notify $term, $event	726	=item on_unmap_notify $term, $event
422		727
423	Called whenever the corresponding X event is received for the terminal If	728	Called whenever the corresponding X event is received for the terminal. If
424	the hook returns true, then the even will be ignored by rxvt-unicode.	729	the hook returns true, then the event will be ignored by rxvt-unicode.
425		730
426	The event is a hash with most values as named by Xlib (see the XEvent	731	The event is a hash with most values as named by Xlib (see the XEvent
427	manpage), with the additional members C<row> and C<col>, which are the row	732	manpage), with the additional members C<row> and C<col>, which are the
428	and column under the mouse cursor.	733	(real, not screen-based) row and column under the mouse cursor.
429		734
430	C<on_key_press> additionally receives the string rxvt-unicode would	735	C<on_key_press> additionally receives the string rxvt-unicode would
431	output, if any, in locale-specific encoding.	736	output, if any, in locale-specific encoding.
432		737
433	subwindow.	738	subwindow.
		739
		740	=item on_client_message $term, $event
		741
		742	=item on_wm_protocols $term, $event
		743
		744	=item on_wm_delete_window $term, $event
		745
		746	Called when various types of ClientMessage events are received (all with
		747	format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
		748
		749	=item on_bell $term
		750
		751	Called on receipt of a bell character.
434		752
435	=back	753	=back
436		754
437	=cut	755	=cut
438		756
…		…
444	use Scalar::Util ();	762	use Scalar::Util ();
445	use List::Util ();	763	use List::Util ();
446		764
447	our $VERSION = 1;	765	our $VERSION = 1;
448	our $TERM;	766	our $TERM;
		767	our @TERM_INIT;
		768	our @TERM_EXT;
449	our @HOOKNAME;	769	our @HOOKNAME;
450	our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;	770	our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
451	our %OPTION;	771	our %OPTION;
452		772
453	our $LIBDIR;	773	our $LIBDIR;
454	our $RESNAME;	774	our $RESNAME;
455	our $RESCLASS;	775	our $RESCLASS;
456	our $RXVTNAME;	776	our $RXVTNAME;
457		777
		778	our $NOCHAR = chr 0xffff;
		779
458	=head2 Variables in the C<urxvt> Package	780	=head2 Variables in the C<urxvt> Package
459		781
460	=over 4	782	=over 4
461		783
462	=item $urxvt::LIBDIR	784	=item $urxvt::LIBDIR
…		…
475	=item $urxvt::TERM	797	=item $urxvt::TERM
476		798
477	The current terminal. This variable stores the current C<urxvt::term>	799	The current terminal. This variable stores the current C<urxvt::term>
478	object, whenever a callback/hook is executing.	800	object, whenever a callback/hook is executing.
479		801
		802	=item @urxvt::TERM_INIT
		803
		804	All code references in this array will be called as methods of the next newly
		805	created C<urxvt::term> object (during the C<on_init> phase). The array
		806	gets cleared before the code references that were in it are being executed,
		807	so references can push themselves onto it again if they so desire.
		808
		809	This complements to the perl-eval command line option, but gets executed
		810	first.
		811
		812	=item @urxvt::TERM_EXT
		813
		814	Works similar to C<@TERM_INIT>, but contains perl package/class names, which
		815	get registered as normal extensions after calling the hooks in C<@TERM_INIT>
		816	but before other extensions. Gets cleared just like C<@TERM_INIT>.
		817
480	=back	818	=back
481		819
482	=head2 Functions in the C<urxvt> Package	820	=head2 Functions in the C<urxvt> Package
483		821
484	=over 4	822	=over 4
485		823
486	=item urxvt::fatal $errormessage	824	=item urxvt::fatal $errormessage
487		825
488	Fatally aborts execution with the given error message. Avoid at all	826	Fatally aborts execution with the given error message (which should
489	costs! The only time this is acceptable is when the terminal process	827	include a trailing newline). Avoid at all costs! The only time this
490	starts up.	828	is acceptable (and useful) is in the init hook, where it prevents the
		829	terminal from starting up.
491		830
492	=item urxvt::warn $string	831	=item urxvt::warn $string
493		832
494	Calls C<rxvt_warn> with the given string which should not include a	833	Calls C<rxvt_warn> with the given string which should include a trailing
495	newline. The module also overwrites the C<warn> builtin with a function	834	newline. The module also overwrites the C<warn> builtin with a function
496	that calls this function.	835	that calls this function.
497		836
498	Using this function has the advantage that its output ends up in the	837	Using this function has the advantage that its output ends up in the
499	correct place, e.g. on stderr of the connecting urxvtc client.	838	correct place, e.g. on stderr of the connecting urxvtc client.
500		839
501	Messages have a size limit of 1023 bytes currently.	840	Messages have a size limit of 1023 bytes currently.
502		841
503	=item $is_safe = urxvt::safe	842	=item @terms = urxvt::termlist
504		843
505	Returns true when it is safe to do potentially unsafe things, such as	844	Returns all urxvt::term objects that exist in this process, regardless of
506	evaluating perl code specified by the user. This is true when urxvt was	845	whether they are started, being destroyed etc., so be careful. Only term
507	started setuid or setgid.	846	objects that have perl extensions attached will be returned (because there
		847	is no urxvt::term object associated with others).
508		848
509	=item $time = urxvt::NOW	849	=item $time = urxvt::NOW
510		850
511	Returns the "current time" (as per the event loop).	851	Returns the "current time" (as per the event loop).
512		852
…		…
555		895
556	=item $rend = urxvt::OVERLAY_RSTYLE	896	=item $rend = urxvt::OVERLAY_RSTYLE
557		897
558	Return the rendition mask used for overlays by default.	898	Return the rendition mask used for overlays by default.
559		899
560	=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline	900	=item $rendbit = urxvt::RS_Bold, urxvt::RS_Italic, urxvt::RS_Blink,
		901	urxvt::RS_RVid, urxvt::RS_Uline
561		902
562	Return the bit that enabled bold, italic, blink, reverse-video and	903	Return the bit that enabled bold, italic, blink, reverse-video and
563	underline, respectively. To enable such a style, just logically OR it into	904	underline, respectively. To enable such a style, just logically OR it into
564	the bitset.	905	the bitset.
565		906
…		…
571		912
572	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour	913	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
573		914
574	=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour	915	=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
575		916
		917	=item $rend = urxvt::SET_COLOR $rend, $new_fg, $new_bg
		918
576	Replace the foreground/background colour in the rendition mask with the	919	Replace the foreground/background colour in the rendition mask with the
577	specified one.	920	specified one.
578		921
579	=item $value = urxvt::GET_CUSTOM $rend	922	=item $value = urxvt::GET_CUSTOM $rend
580		923
…		…
589	=back	932	=back
590		933
591	=cut	934	=cut
592		935
593	BEGIN {	936	BEGIN {
594	urxvt->bootstrap;
595
596	# overwrite perl's warn	937	# overwrite perl's warn
597	*CORE::GLOBAL::warn = sub {	938	*CORE::GLOBAL::warn = sub {
598	my $msg = join "", @_;	939	my $msg = join "", @_;
599	$msg .= "\n"	940	$msg .= "\n"
600	unless $msg =~ /\n$/;	941	unless $msg =~ /\n$/;
601	urxvt::warn ($msg);	942	urxvt::warn ($msg);
602	};	943	};
		944	}
603		945
604	# %ENV is the original startup environment	946	no warnings 'utf8';
605	delete $ENV{IFS};	947
606	delete $ENV{CDPATH};	948	sub perl_libdirs {
607	delete $ENV{BASH_ENV};	949	map { split /:/ }
608	$ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";	950	$_[0]->resource ("perl_lib"),
		951	$ENV{URXVT_PERL_LIB},
		952	"$ENV{HOME}/.urxvt/ext",
		953	"$LIBDIR/perl"
		954	}
		955
		956	our %META; # meta header information from scripts
		957	our %SCAN; # which dirs already scanned
		958
		959	sub resource {
		960	my ($term, $name, $isarg, $flag, $value) = @_;
		961
		962	for my $dir (perl_libdirs $term) {
		963	}
		964
		965	warn "resourece<@_>\n";#d#
		966
		967	0
609	}	968	}
610		969
611	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};	970	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
612		971
613	sub verbose {	972	sub verbose {
614	my ($level, $msg) = @_;	973	my ($level, $msg) = @_;
615	warn "$msg\n" if $level <= $verbosity;	974	warn "$msg\n" if $level <= $verbosity;
616	}	975	}
617		976
618	my $extension_pkg = "extension0000";
619	my %extension_pkg;	977	my %extension_pkg;
620		978
621	# load a single script into its own package, once only	979	# load a single script into its own package, once only
622	sub extension_package($) {	980	sub extension_package($) {
623	my ($path) = @_;	981	my ($path) = @_;
624		982
625	$extension_pkg{$path} ||= do {	983	$extension_pkg{$path} ||= do {
626	my $pkg = "urxvt::" . ($extension_pkg++);	984	$path =~ /([^\/\\]+)$/;
		985	my $pkg = $1;
		986	$pkg =~ s/[^[:word:]]/_/g;
		987	$pkg = "urxvt::ext::$pkg";
627		988
628	verbose 3, "loading extension '$path' into package '$pkg'";	989	verbose 3, "loading extension '$path' into package '$pkg'";
629		990
630	open my $fh, "<:raw", $path	991	open my $fh, "<:raw", $path
631	or die "$path: $!";	992	or die "$path: $!";
632		993
633	my $source = untaint	994	my $source =
634	"package $pkg; use strict; use utf8;\n"	995	"package $pkg; use strict; use utf8; no warnings 'utf8';\n"
635	. "use base urxvt::term::extension::;\n"
636	. "#line 1 \"$path\"\n{\n"	996	. "#line 1 \"$path\"\n{\n"
637	. (do { local $/; <$fh> })	997	. (do { local $/; <$fh> })
638	. "\n};\n1";	998	. "\n};\n1";
639		999
640	eval $source	1000	eval $source
…		…
650	sub invoke {	1010	sub invoke {
651	local $TERM = shift;	1011	local $TERM = shift;
652	my $htype = shift;	1012	my $htype = shift;
653		1013
654	if ($htype == 0) { # INIT	1014	if ($htype == 0) { # INIT
655	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");	1015	my @dirs = perl_libdirs $TERM;
656		1016
657	my %ext_arg;	1017	my %ext_arg;
658		1018
		1019	{
		1020	my @init = @TERM_INIT;
		1021	@TERM_INIT = ();
		1022	$_->($TERM) for @init;
		1023	my @pkg = @TERM_EXT;
		1024	@TERM_EXT = ();
		1025	$TERM->register_package ($_) for @pkg;
		1026	}
		1027
659	for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {	1028	for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
660	if ($_ eq "default") {	1029	if ($_ eq "default") {
661	$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback);	1030	$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
662	} elsif (/^-(.*)$/) {	1031	} elsif (/^-(.*)$/) {
663	delete $ext_arg{$1};	1032	delete $ext_arg{$1};
664	} elsif (/^([^<]+)<(.*)>$/) {	1033	} elsif (/^([^<]+)<(.*)>$/) {
665	push @{ $ext_arg{$1} }, $2;	1034	push @{ $ext_arg{$1} }, $2;
666	} else {	1035	} else {
667	$ext_arg{$_} ||= [];	1036	$ext_arg{$_} ||= [];
668	}	1037	}
669	}	1038	}
670		1039
671	while (my ($ext, $argv) = each %ext_arg) {	1040	for my $ext (sort keys %ext_arg) {
672	my @files = grep -f $_, map "$_/$ext", @dirs;	1041	my @files = grep -f $_, map "$_/$ext", @dirs;
673		1042
674	if (@files) {	1043	if (@files) {
675	$TERM->register_package (extension_package $files[0], $argv);	1044	$TERM->register_package (extension_package $files[0], $ext_arg{$ext});
676	} else {	1045	} else {
677	warn "perl extension '$ext' not found in perl library search path\n";	1046	warn "perl extension '$ext' not found in perl library search path\n";
678	}	1047	}
679	}	1048	}
680		1049
…		…
686		1055
687	if (my $cb = $TERM->{_hook}[$htype]) {	1056	if (my $cb = $TERM->{_hook}[$htype]) {
688	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"	1057	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
689	if $verbosity >= 10;	1058	if $verbosity >= 10;
690		1059
691	keys %$cb;	1060	for my $pkg (keys %$cb) {
692
693	while (my ($pkg, $cb) = each %$cb) {
694	$retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) }	1061	my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg}, @_) };
695	and last;	1062	$retval ||= $retval_;
696		1063
697	if ($@) {	1064	if ($@) {
698	$TERM->ungrab; # better to lose the grab than the session	1065	$TERM->ungrab; # better to lose the grab than the session
699	warn $@;	1066	warn $@;
700	}	1067	}
…		…
713	}	1080	}
714		1081
715	$retval	1082	$retval
716	}	1083	}
717		1084
718	sub exec_async(@) {	1085	sub SET_COLOR($$$) {
719	my $pid = fork;	1086	SET_BGCOLOR (SET_FGCOLOR ($_[0], $_[1]), $_[2])
		1087	}
720		1088
721	return	1089	sub rend2mask {
722	if !defined $pid or $pid;	1090	no strict 'refs';
723		1091	my ($str, $mask) = (@_, 0);
724	%ENV = %{ $TERM->env };	1092	my %color = ( fg => undef, bg => undef );
725		1093	my @failed;
726	exec @_;	1094	for my $spec ( split /\s+/, $str ) {
727	_exit 255;	1095	if ( $spec =~ /^([fb]g)[_:-]?(\d+)/i ) {
		1096	$color{lc($1)} = $2;
		1097	} else {
		1098	my $neg = $spec =~ s/^[-^]//;
		1099	unless ( exists &{"RS_$spec"} ) {
		1100	push @failed, $spec;
		1101	next;
		1102	}
		1103	my $cur = &{"RS_$spec"};
		1104	if ( $neg ) {
		1105	$mask &= ~$cur;
		1106	} else {
		1107	$mask |= $cur;
		1108	}
		1109	}
		1110	}
		1111	($mask, @color{qw(fg bg)}, \@failed)
728	}	1112	}
729		1113
730	# urxvt::term::extension	1114	# urxvt::term::extension
731		1115
732	package urxvt::term::extension;	1116	package urxvt::term::extension;
…		…
803	is that you cannot use blocking APIs, but the non-blocking variant should	1187	is that you cannot use blocking APIs, but the non-blocking variant should
804	work.	1188	work.
805		1189
806	=cut	1190	=cut
807		1191
808	our $VERSION = 1;	1192	our $VERSION = '5.23';
809		1193
810	$INC{"urxvt/anyevent.pm"} = 1; # mark us as there	1194	$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
811	push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];	1195	push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
812		1196
813	sub timer {	1197	sub timer {
…		…
815		1199
816	my $cb = $arg{cb};	1200	my $cb = $arg{cb};
817		1201
818	urxvt::timer	1202	urxvt::timer
819	->new	1203	->new
820	->start (urxvt::NOW + $arg{after})	1204	->after ($arg{after}, $arg{interval})
821	->cb (sub {	1205	->cb ($arg{interval} ? $cb : sub {
822	$_[0]->stop; # need to cancel manually	1206	$_[0]->stop; # need to cancel manually
823	$cb->();	1207	$cb->();
824	})	1208	})
825	}	1209	}
826		1210
827	sub io {	1211	sub io {
828	my ($class, %arg) = @_;	1212	my ($class, %arg) = @_;
829		1213
830	my $cb = $arg{cb};	1214	my $cb = $arg{cb};
		1215	my $fd = fileno $arg{fh};
		1216	defined $fd or $fd = $arg{fh};
831		1217
832	bless [$arg{fh}, urxvt::iow	1218	bless [$arg{fh}, urxvt::iow
833	->new	1219	->new
834	->fd (fileno $arg{fh})	1220	->fd ($fd)
835	->events (($arg{poll} =~ /r/ ? 1 : 0)	1221	->events (($arg{poll} =~ /r/ ? 1 : 0)
836	| ($arg{poll} =~ /w/ ? 2 : 0))	1222	| ($arg{poll} =~ /w/ ? 2 : 0))
837	->start	1223	->start
838	->cb (sub {	1224	->cb ($cb)
839	$cb->(($_[1] & 1 ? 'r' : '')
840	. ($_[1] & 2 ? 'w' : ''));
841	})],
842	urxvt::anyevent::	1225	], urxvt::anyevent::
		1226	}
		1227
		1228	sub idle {
		1229	my ($class, %arg) = @_;
		1230
		1231	my $cb = $arg{cb};
		1232
		1233	urxvt::iw
		1234	->new
		1235	->start
		1236	->cb ($cb)
		1237	}
		1238
		1239	sub child {
		1240	my ($class, %arg) = @_;
		1241
		1242	my $cb = $arg{cb};
		1243
		1244	urxvt::pw
		1245	->new
		1246	->start ($arg{pid})
		1247	->cb (sub {
		1248	$_[0]->stop; # need to cancel manually
		1249	$cb->($_[0]->rpid, $_[0]->rstatus);
		1250	})
843	}	1251	}
844		1252
845	sub DESTROY {	1253	sub DESTROY {
846	$_[0][1]->stop;	1254	$_[0][1]->stop;
847	}	1255	}
848		1256
849	sub condvar {	1257	# only needed for AnyEvent < 6 compatibility
850	bless \my $flag, urxvt::anyevent::condvar::	1258	sub one_event {
851	}
852
853	sub urxvt::anyevent::condvar::broadcast {
854	${$_[0]}++;
855	}
856
857	sub urxvt::anyevent::condvar::wait {
858	unless (${$_[0]}) {
859	Carp::croak "AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API";	1259	Carp::croak "AnyEvent->one_event blocking wait unsupported in urxvt, use a non-blocking API";
860	}
861	}	1260	}
862		1261
863	package urxvt::term;	1262	package urxvt::term;
864		1263
865	=head2 The C<urxvt::term> Class	1264	=head2 The C<urxvt::term> Class
…		…
870		1269
871	# find on_xxx subs in the package and register them	1270	# find on_xxx subs in the package and register them
872	# as hooks	1271	# as hooks
873	sub register_package {	1272	sub register_package {
874	my ($self, $pkg, $argv) = @_;	1273	my ($self, $pkg, $argv) = @_;
		1274
		1275	no strict 'refs';
		1276
		1277	urxvt::verbose 6, "register package $pkg to $self";
		1278
		1279	@{"$pkg\::ISA"} = urxvt::term::extension::;
875		1280
876	my $proxy = bless {	1281	my $proxy = bless {
877	_pkg => $pkg,	1282	_pkg => $pkg,
878	argv => $argv,	1283	argv => $argv,
879	}, $pkg;	1284	}, $pkg;
…		…
895	hash which defines the environment of the new terminal.	1300	hash which defines the environment of the new terminal.
896		1301
897	Croaks (and probably outputs an error message) if the new instance	1302	Croaks (and probably outputs an error message) if the new instance
898	couldn't be created. Returns C<undef> if the new instance didn't	1303	couldn't be created. Returns C<undef> if the new instance didn't
899	initialise perl, and the terminal object otherwise. The C<init> and	1304	initialise perl, and the terminal object otherwise. The C<init> and
900	C<start> hooks will be called during this call.	1305	C<start> hooks will be called before this call returns, and are free to
		1306	refer to global data (which is race free).
901		1307
902	=cut	1308	=cut
903		1309
904	sub new {	1310	sub new {
905	my ($class, $env, @args) = @_;	1311	my ($class, $env, @args) = @_;
906		1312
		1313	$env or Carp::croak "environment hash missing in call to urxvt::term->new";
		1314	@args or Carp::croak "name argument missing in call to urxvt::term->new";
		1315
907	_new ([ map "$_=$env->{$_}", keys %$env ], @args);	1316	_new ([ map "$_=$env->{$_}", keys %$env ], \@args);
908	}	1317	}
909		1318
910	=item $term->destroy	1319	=item $term->destroy
911		1320
912	Destroy the terminal object (close the window, free resources	1321	Destroy the terminal object (close the window, free resources
913	etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event	1322	etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
914	watchers (timers, io watchers) are still active.	1323	watchers (timers, io watchers) are still active.
915		1324
		1325	=item $term->exec_async ($cmd[, @args])
		1326
		1327	Works like the combination of the C<fork>/C<exec> builtins, which executes
		1328	("starts") programs in the background. This function takes care of setting
		1329	the user environment before exec'ing the command (e.g. C<PATH>) and should
		1330	be preferred over explicit calls to C<exec> or C<system>.
		1331
		1332	Returns the pid of the subprocess or C<undef> on error.
		1333
		1334	=cut
		1335
		1336	sub exec_async {
		1337	my $self = shift;
		1338
		1339	my $pid = fork;
		1340
		1341	return $pid
		1342	if !defined $pid or $pid;
		1343
		1344	%ENV = %{ $self->env };
		1345
		1346	exec @_;
		1347	urxvt::_exit 255;
		1348	}
		1349
916	=item $isset = $term->option ($optval[, $set])	1350	=item $isset = $term->option ($optval[, $set])
917		1351
918	Returns true if the option specified by C<$optval> is enabled, and	1352	Returns true if the option specified by C<$optval> is enabled, and
919	optionally change it. All option values are stored by name in the hash	1353	optionally change it. All option values are stored by name in the hash
920	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.	1354	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
921		1355
922	Here is a a likely non-exhaustive list of option names, please see the	1356	Here is a likely non-exhaustive list of option names, please see the
923	source file F</src/optinc.h> to see the actual list:	1357	source file F</src/optinc.h> to see the actual list:
924		1358
925	borderLess console cursorBlink cursorUnderline hold iconic insecure	1359	borderLess buffered console cursorBlink cursorUnderline hold iconic
926	intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage	1360	insecure intensityStyles iso14755 iso14755_52 jumpScroll loginShell
		1361	mapAlert meta8 mouseWheelScrollPage override_redirect pastableTabs
927	pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating	1362	pointerBlank reverseVideo scrollBar scrollBar_floating scrollBar_right
928	scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer	1363	scrollTtyKeypress scrollTtyOutput scrollWithBuffer secondaryScreen
929	secondaryScreen secondaryScroll skipBuiltinGlyphs transparent	1364	secondaryScroll skipBuiltinGlyphs skipScroll transparent tripleclickwords
930	tripleclickwords utmpInhibit visualBell	1365	urgentOnBell utmpInhibit visualBell
931		1366
932	=item $value = $term->resource ($name[, $newval])	1367	=item $value = $term->resource ($name[, $newval])
933		1368
934	Returns the current resource value associated with a given name and	1369	Returns the current resource value associated with a given name and
935	optionally sets a new value. Setting values is most useful in the C<init>	1370	optionally sets a new value. Setting values is most useful in the C<init>
…		…
944	likely change).	1379	likely change).
945		1380
946	Please note that resource strings will currently only be freed when the	1381	Please note that resource strings will currently only be freed when the
947	terminal is destroyed, so changing options frequently will eat memory.	1382	terminal is destroyed, so changing options frequently will eat memory.
948		1383
949	Here is a a likely non-exhaustive list of resource names, not all of which	1384	Here is a likely non-exhaustive list of resource names, not all of which
950	are supported in every build, please see the source file F</src/rsinc.h>	1385	are supported in every build, please see the source file F</src/rsinc.h>
951	to see the actual list:	1386	to see the actual list:
952		1387
953	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont	1388	answerbackstring backgroundPixmap backspace_key blendtype blurradius
954	borderLess color cursorBlink cursorUnderline cutchars delete_key	1389	boldFont boldItalicFont borderLess buffered chdir color cursorBlink
955	display_name embed ext_bwidth fade font geometry hold iconName	1390	cursorUnderline cutchars delete_key depth display_name embed ext_bwidth
956	imFont imLocale inputMethod insecure int_bwidth intensityStyles	1391	fade font geometry hold iconName iconfile imFont imLocale inputMethod
		1392	insecure int_bwidth intensityStyles iso14755 iso14755_52 italicFont
957	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier	1393	jumpScroll letterSpace lineSpace loginShell mapAlert meta8 modifier
958	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2	1394	mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
959	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd	1395	perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
960	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating	1396	preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
961	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput	1397	scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
962	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle	1398	scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
963	shade term_name title transparent transparent_all tripleclickwords	1399	secondaryScreen secondaryScroll shade skipBuiltinGlyphs skipScroll
		1400	term_name title transient_for transparent tripleclickwords urgentOnBell
964	utmpInhibit visualBell	1401	utmpInhibit visualBell
965		1402
966	=cut	1403	=cut
967		1404
968	sub resource($$;$) {	1405	sub resource($$;$) {
969	my ($self, $name) = (shift, shift);	1406	my ($self, $name) = (shift, shift);
970	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);	1407	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
971	&urxvt::term::_resource	1408	goto &urxvt::term::_resource
972	}	1409	}
973		1410
974	=item $value = $term->x_resource ($pattern)	1411	=item $value = $term->x_resource ($pattern)
975		1412
976	Returns the X-Resource for the given pattern, excluding the program or	1413	Returns the X-Resource for the given pattern, excluding the program or
…		…
980		1417
981	This method should only be called during the C<on_start> hook, as there is	1418	This method should only be called during the C<on_start> hook, as there is
982	only one resource database per display, and later invocations might return	1419	only one resource database per display, and later invocations might return
983	the wrong resources.	1420	the wrong resources.
984		1421
985	=item $success = $term->parse_keysym ($keysym_spec, $command_string)	1422	=item $success = $term->parse_keysym ($key, $octets)
986		1423
987	Adds a keymap translation exactly as specified via a resource. See the	1424	Adds a key binding exactly as specified via a resource. See the
988	C<keysym> resource in the @@RXVT_NAME@@(1) manpage.	1425	C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
		1426
		1427	=item $term->register_command ($keysym, $modifiermask, $string)
		1428
		1429	Adds a key binding. This is a lower level api compared to
		1430	C<parse_keysym>, as it expects a parsed key description, and can be
		1431	used only inside either the C<on_init> hook, to add a binding, or the
		1432	C<on_register_command> hook, to modify a parsed binding.
989		1433
990	=item $rend = $term->rstyle ([$new_rstyle])	1434	=item $rend = $term->rstyle ([$new_rstyle])
991		1435
992	Return and optionally change the current rendition. Text that is output by	1436	Return and optionally change the current rendition. Text that is output by
993	the terminal application will use this style.	1437	the terminal application will use this style.
…		…
1001		1445
1002	=item ($row, $col) = $term->selection_beg ([$row, $col])	1446	=item ($row, $col) = $term->selection_beg ([$row, $col])
1003		1447
1004	=item ($row, $col) = $term->selection_end ([$row, $col])	1448	=item ($row, $col) = $term->selection_end ([$row, $col])
1005		1449
1006	Return the current values of the selection mark, begin or end positions,	1450	Return the current values of the selection mark, begin or end positions.
1007	and optionally set them to new values.	1451
		1452	When arguments are given, then the selection coordinates are set to
		1453	C<$row> and C<$col>, and the selection screen is set to the current
		1454	screen.
		1455
		1456	=item $screen = $term->selection_screen ([$screen])
		1457
		1458	Returns the current selection screen, and then optionally sets it.
1008		1459
1009	=item $term->selection_make ($eventtime[, $rectangular])	1460	=item $term->selection_make ($eventtime[, $rectangular])
1010		1461
1011	Tries to make a selection as set by C<selection_beg> and	1462	Tries to make a selection as set by C<selection_beg> and
1012	C<selection_end>. If C<$rectangular> is true (default: false), a	1463	C<selection_end>. If C<$rectangular> is true (default: false), a
1013	rectangular selection will be made. This is the prefered function to make	1464	rectangular selection will be made. This is the preferred function to make
1014	a selection.	1465	a selection.
1015		1466
1016	=item $success = $term->selection_grab ($eventtime)	1467	=item $success = $term->selection_grab ($eventtime[, $clipboard])
1017		1468
1018	Try to request the primary selection text from the server (for example, as	1469	Try to acquire ownership of the primary (clipboard if C<$clipboard> is
		1470	true) selection from the server. The corresponding text can be set
1019	set by the next method). No visual feedback will be given. This function	1471	with the next method. No visual feedback will be given. This function
1020	is mostly useful from within C<on_sel_grab> hooks.	1472	is mostly useful from within C<on_sel_grab> hooks.
1021		1473
1022	=item $oldtext = $term->selection ([$newtext])	1474	=item $oldtext = $term->selection ([$newtext, $clipboard])
1023		1475
1024	Return the current selection text and optionally replace it by C<$newtext>.	1476	Return the current selection (clipboard if C<$clipboard> is true) text
		1477	and optionally replace it by C<$newtext>.
		1478
		1479	=item $term->selection_clear ([$clipboard])
		1480
		1481	Revoke ownership of the primary (clipboard if C<$clipboard> is true) selection.
1025		1482
1026	=item $term->overlay_simple ($x, $y, $text)	1483	=item $term->overlay_simple ($x, $y, $text)
1027		1484
1028	Create a simple multi-line overlay box. See the next method for details.	1485	Create a simple multi-line overlay box. See the next method for details.
1029		1486
…		…
1059		1516
1060	The methods currently supported on C<urxvt::overlay> objects are:	1517	The methods currently supported on C<urxvt::overlay> objects are:
1061		1518
1062	=over 4	1519	=over 4
1063		1520
1064	=item $overlay->set ($x, $y, $text, $rend)	1521	=item $overlay->set ($x, $y, $text[, $rend])
1065		1522
1066	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts	1523	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts
1067	text in rxvt-unicode's special encoding and an array of rendition values	1524	text in rxvt-unicode's special encoding and an array of rendition values
1068	at a specific position inside the overlay.	1525	at a specific position inside the overlay.
		1526
		1527	If C<$rend> is missing, then the rendition will not be changed.
1069		1528
1070	=item $overlay->hide	1529	=item $overlay->hide
1071		1530
1072	If visible, hide the overlay, but do not destroy it.	1531	If visible, hide the overlay, but do not destroy it.
1073		1532
…		…
1143		1602
1144	Normally its not a good idea to use this function, as programs might be	1603	Normally its not a good idea to use this function, as programs might be
1145	confused by changes in cursor position or scrolling. Its useful inside a	1604	confused by changes in cursor position or scrolling. Its useful inside a
1146	C<on_add_lines> hook, though.	1605	C<on_add_lines> hook, though.
1147		1606
		1607	=item $term->scr_change_screen ($screen)
		1608
		1609	Switch to given screen - 0 primary, 1 secondary.
		1610
1148	=item $term->cmd_parse ($octets)	1611	=item $term->cmd_parse ($octets)
1149		1612
1150	Similar to C<scr_add_lines>, but the argument must be in the	1613	Similar to C<scr_add_lines>, but the argument must be in the
1151	locale-specific encoding of the terminal and can contain command sequences	1614	locale-specific encoding of the terminal and can contain command sequences
1152	(escape codes) that will be interpreted.	1615	(escape codes) that will be interpreted.
1153		1616
1154	=item $term->tt_write ($octets)	1617	=item $term->tt_write ($octets)
1155		1618
1156	Write the octets given in C<$data> to the tty (i.e. as program input). To	1619	Write the octets given in C<$octets> to the tty (i.e. as program input). To
1157	pass characters instead of octets, you should convert your strings first	1620	pass characters instead of octets, you should convert your strings first
1158	to the locale-specific encoding using C<< $term->locale_encode >>.	1621	to the locale-specific encoding using C<< $term->locale_encode >>.
		1622
		1623	=item $term->tt_paste ($octets)
		1624
		1625	Write the octets given in C<$octets> to the tty as a paste, converting NL to
		1626	CR and bracketing the data with control sequences if bracketed paste mode
		1627	is set.
1159		1628
1160	=item $old_events = $term->pty_ev_events ([$new_events])	1629	=item $old_events = $term->pty_ev_events ([$new_events])
1161		1630
1162	Replaces the event mask of the pty watcher by the given event mask. Can	1631	Replaces the event mask of the pty watcher by the given event mask. Can
1163	be used to suppress input and output handling to the pty/tty. See the	1632	be used to suppress input and output handling to the pty/tty. See the
1164	description of C<< urxvt::timer->events >>. Make sure to always restore	1633	description of C<< urxvt::timer->events >>. Make sure to always restore
1165	the previous value.	1634	the previous value.
1166		1635
		1636	=item $fd = $term->pty_fd
		1637
		1638	Returns the master file descriptor for the pty in use, or C<-1> if no pty
		1639	is used.
		1640
1167	=item $windowid = $term->parent	1641	=item $windowid = $term->parent
1168		1642
1169	Return the window id of the toplevel window.	1643	Return the window id of the toplevel window.
1170		1644
1171	=item $windowid = $term->vt	1645	=item $windowid = $term->vt
…		…
1177	Adds the specified events to the vt event mask. Useful e.g. when you want	1651	Adds the specified events to the vt event mask. Useful e.g. when you want
1178	to receive pointer events all the times:	1652	to receive pointer events all the times:
1179		1653
1180	$term->vt_emask_add (urxvt::PointerMotionMask);	1654	$term->vt_emask_add (urxvt::PointerMotionMask);
1181		1655
		1656	=item $term->set_urgency ($set)
		1657
		1658	Enable/disable the urgency hint on the toplevel window.
		1659
		1660	=item $term->focus_in
		1661
		1662	=item $term->focus_out
		1663
		1664	=item $term->key_press ($state, $keycode[, $time])
		1665
		1666	=item $term->key_release ($state, $keycode[, $time])
		1667
		1668	Deliver various fake events to to terminal.
		1669
1182	=item $window_width = $term->width	1670	=item $window_width = $term->width
1183		1671
1184	=item $window_height = $term->height	1672	=item $window_height = $term->height
1185		1673
1186	=item $font_width = $term->fwidth	1674	=item $font_width = $term->fwidth
…		…
1216	=item $env = $term->env	1704	=item $env = $term->env
1217		1705
1218	Returns a copy of the environment in effect for the terminal as a hashref	1706	Returns a copy of the environment in effect for the terminal as a hashref
1219	similar to C<\%ENV>.	1707	similar to C<\%ENV>.
1220		1708
		1709	=item @envv = $term->envv
		1710
		1711	Returns the environment as array of strings of the form C<VAR=VALUE>.
		1712
		1713	=item @argv = $term->argv
		1714
		1715	Return the argument vector as this terminal, similar to @ARGV, but
		1716	includes the program name as first element.
		1717
1221	=cut	1718	=cut
1222		1719
1223	sub env {	1720	sub env {
1224	if (my $env = $_[0]->_env) {
1225	+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), @$env }	1721	+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), $_[0]->envv }
1226	} else {
1227	+{ %ENV }
1228	}
1229	}	1722	}
1230		1723
1231	=item $modifiermask = $term->ModLevel3Mask	1724	=item $modifiermask = $term->ModLevel3Mask
1232		1725
1233	=item $modifiermask = $term->ModMetaMask	1726	=item $modifiermask = $term->ModMetaMask
1234		1727
1235	=item $modifiermask = $term->ModNumLockMask	1728	=item $modifiermask = $term->ModNumLockMask
1236		1729
1237	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often	1730	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1238	AltGr), the meta key (often Alt) and the num lock key, if applicable.	1731	AltGr), the meta key (often Alt) and the num lock key, if applicable.
		1732
		1733	=item $screen = $term->current_screen
		1734
		1735	Returns the currently displayed screen (0 primary, 1 secondary).
		1736
		1737	=item $cursor_is_hidden = $term->hidden_cursor
		1738
		1739	Returns whether the cursor is currently hidden or not.
1239		1740
1240	=item $view_start = $term->view_start ([$newvalue])	1741	=item $view_start = $term->view_start ([$newvalue])
1241		1742
1242	Returns the row number of the topmost displayed line. Maximum value is	1743	Returns the row number of the topmost displayed line. Maximum value is
1243	C<0>, which displays the normal terminal contents. Lower values scroll	1744	C<0>, which displays the normal terminal contents. Lower values scroll
…		…
1251		1752
1252	Used after changing terminal contents to display them.	1753	Used after changing terminal contents to display them.
1253		1754
1254	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])	1755	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
1255		1756
1256	Returns the text of the entire row with number C<$row_number>. Row C<0>	1757	Returns the text of the entire row with number C<$row_number>. Row C<< $term->top_row >>
1257	is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost	1758	is the topmost terminal line, row C<< $term->nrow-1 >> is the bottommost
1258	terminal line. The scrollback buffer starts at line C<-1> and extends to
1259	line C<< -$term->nsaved >>. Nothing will be returned if a nonexistent line	1759	terminal line. Nothing will be returned if a nonexistent line
1260	is requested.	1760	is requested.
1261		1761
1262	If C<$new_text> is specified, it will replace characters in the current	1762	If C<$new_text> is specified, it will replace characters in the current
1263	line, starting at column C<$start_col> (default C<0>), which is useful	1763	line, starting at column C<$start_col> (default C<0>), which is useful
1264	to replace only parts of a line. The font index in the rendition will	1764	to replace only parts of a line. The font index in the rendition will
1265	automatically be updated.	1765	automatically be updated.
1266		1766
1267	C<$text> is in a special encoding: tabs and wide characters that use more	1767	C<$text> is in a special encoding: tabs and wide characters that use more
1268	than one cell when displayed are padded with urxvt::NOCHAR characters	1768	than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
1269	(C<chr 65535>). Characters with combining characters and other characters	1769	characters. Characters with combining characters and other characters that
1270	that do not fit into the normal tetx encoding will be replaced with	1770	do not fit into the normal text encoding will be replaced with characters
1271	characters in the private use area.	1771	in the private use area.
1272		1772
1273	You have to obey this encoding when changing text. The advantage is	1773	You have to obey this encoding when changing text. The advantage is
1274	that C<substr> and similar functions work on screen cells and not on	1774	that C<substr> and similar functions work on screen cells and not on
1275	characters.	1775	characters.
1276		1776
…		…
1420	where one character corresponds to one screen cell. See	1920	where one character corresponds to one screen cell. See
1421	C<< $term->ROW_t >> for details.	1921	C<< $term->ROW_t >> for details.
1422		1922
1423	=item $string = $term->special_decode $text	1923	=item $string = $term->special_decode $text
1424		1924
1425	Converts rxvt-unicodes text reprsentation into a perl string. See	1925	Converts rxvt-unicodes text representation into a perl string. See
1426	C<< $term->ROW_t >> for details.	1926	C<< $term->ROW_t >> for details.
1427		1927
1428	=item $success = $term->grab_button ($button, $modifiermask)	1928	=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
1429		1929
		1930	=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
		1931
1430	Registers a synchronous button grab. See the XGrabButton manpage.	1932	Register/unregister a synchronous button grab. See the XGrabButton
		1933	manpage.
1431		1934
1432	=item $success = $term->grab ($eventtime[, $sync])	1935	=item $success = $term->grab ($eventtime[, $sync])
1433		1936
1434	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or	1937	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
1435	synchronous (C<$sync> is true). Also remembers the grab timestampe.	1938	synchronous (C<$sync> is true). Also remembers the grab timestamp.
1436		1939
1437	=item $term->allow_events_async	1940	=item $term->allow_events_async
1438		1941
1439	Calls XAllowEvents with AsyncBoth for the most recent grab.	1942	Calls XAllowEvents with AsyncBoth for the most recent grab.
1440		1943
…		…
1447	Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most	1950	Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
1448	recent grab.	1951	recent grab.
1449		1952
1450	=item $term->ungrab	1953	=item $term->ungrab
1451		1954
1452	Calls XUngrab for the most recent grab. Is called automatically on	1955	Calls XUngrabPointer and XUngrabKeyboard for the most recent grab. Is called automatically on
1453	evaluation errors, as it is better to lose the grab in the error case as	1956	evaluation errors, as it is better to lose the grab in the error case as
1454	the session.	1957	the session.
		1958
		1959	=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
		1960
		1961	=item $atom_name = $term->XGetAtomName ($atom)
		1962
		1963	=item @atoms = $term->XListProperties ($window)
		1964
		1965	=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
		1966
		1967	=item $term->XChangeProperty ($window, $property, $type, $format, $octets)
		1968
		1969	=item $term->XDeleteProperty ($window, $property)
		1970
		1971	=item $window = $term->DefaultRootWindow
		1972
		1973	=item $term->XReparentWindow ($window, $parent, [$x, $y])
		1974
		1975	=item $term->XMapWindow ($window)
		1976
		1977	=item $term->XUnmapWindow ($window)
		1978
		1979	=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
		1980
		1981	=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
		1982
		1983	=item $term->XChangeInput ($window, $add_events[, $del_events])
		1984
		1985	=item $keysym = $term->XStringToKeysym ($string)
		1986
		1987	=item $string = $term->XKeysymToString ($keysym)
		1988
		1989	Various X or X-related functions. The C<$term> object only serves as
		1990	the source of the display, otherwise those functions map more-or-less
		1991	directly onto the X functions of the same name.
1455		1992
1456	=back	1993	=back
1457		1994
1458	=cut	1995	=cut
1459		1996
…		…
1523	my ($self, $text, $cb) = @_;	2060	my ($self, $text, $cb) = @_;
1524		2061
1525	$self->add_item ({ type => "button", text => $text, activate => $cb});	2062	$self->add_item ({ type => "button", text => $text, activate => $cb});
1526	}	2063	}
1527		2064
1528	=item $popup->add_toggle ($text, $cb, $initial_value)	2065	=item $popup->add_toggle ($text, $initial_value, $cb)
1529		2066
1530	Adds a toggle/checkbox item to the popup. Teh callback gets called	2067	Adds a toggle/checkbox item to the popup. The callback gets called
1531	whenever it gets toggled, with a boolean indicating its value as its first	2068	whenever it gets toggled, with a boolean indicating its new value as its
1532	argument.	2069	first argument.
1533		2070
1534	=cut	2071	=cut
1535		2072
1536	sub add_toggle {	2073	sub add_toggle {
1537	my ($self, $text, $cb, $value) = @_;	2074	my ($self, $text, $value, $cb) = @_;
1538		2075
1539	my $item; $item = {	2076	my $item; $item = {
1540	type => "button",	2077	type => "button",
1541	text => " $text",	2078	text => " $text",
1542	value => $value,	2079	value => $value,
…		…
1561	my $env = $self->{term}->env;	2098	my $env = $self->{term}->env;
1562	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.	2099	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1563	delete $env->{LC_ALL};	2100	delete $env->{LC_ALL};
1564	$env->{LC_CTYPE} = $self->{term}->locale;	2101	$env->{LC_CTYPE} = $self->{term}->locale;
1565		2102
1566	urxvt::term->new ($env, $self->{term}->resource ("name"),	2103	my $term = urxvt::term->new (
1567	"--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0,	2104	$env, "popup",
		2105	"--perl-lib" => "", "--perl-ext-common" => "",
		2106	"-pty-fd" => -1, "-sl" => 0,
		2107	"-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1568	"--transient-for" => $self->{term}->parent,	2108	"--transient-for" => $self->{term}->parent,
1569	"-display" => $self->{term}->display_id,	2109	"-display" => $self->{term}->display_id,
1570	"-pe" => "urxvt-popup")	2110	"-pe" => "urxvt-popup",
1571	or die "unable to create popup window\n";	2111	) or die "unable to create popup window\n";
		2112
		2113	unless (delete $term->{urxvt_popup_init_done}) {
		2114	$term->ungrab;
		2115	$term->destroy;
		2116	die "unable to initialise popup window\n";
		2117	}
1572	}	2118	}
1573		2119
1574	sub DESTROY {	2120	sub DESTROY {
1575	my ($self) = @_;	2121	my ($self) = @_;
1576		2122
1577	delete $self->{term}{_destroy}{$self};	2123	delete $self->{term}{_destroy}{$self};
1578	$self->{term}->ungrab;	2124	$self->{term}->ungrab;
1579	}	2125	}
1580		2126
1581	=back	2127	=back
		2128
		2129	=cut
		2130
		2131	package urxvt::watcher;
1582		2132
1583	=head2 The C<urxvt::timer> Class	2133	=head2 The C<urxvt::timer> Class
1584		2134
1585	This class implements timer watchers/events. Time is represented as a	2135	This class implements timer watchers/events. Time is represented as a
1586	fractional number of seconds since the epoch. Example:	2136	fractional number of seconds since the epoch. Example:
…		…
1590	->new	2140	->new
1591	->interval (1)	2141	->interval (1)
1592	->cb (sub {	2142	->cb (sub {
1593	$term->{overlay}->set (0, 0,	2143	$term->{overlay}->set (0, 0,
1594	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);	2144	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
1595	});	2145	});
1596		2146
1597	=over 4	2147	=over 4
1598		2148
1599	=item $timer = new urxvt::timer	2149	=item $timer = new urxvt::timer
1600		2150
…		…
1603		2153
1604	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })	2154	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })
1605		2155
1606	Set the callback to be called when the timer triggers.	2156	Set the callback to be called when the timer triggers.
1607		2157
1608	=item $tstamp = $timer->at
1609
1610	Return the time this watcher will fire next.
1611
1612	=item $timer = $timer->set ($tstamp)	2158	=item $timer = $timer->set ($tstamp[, $interval])
1613		2159
1614	Set the time the event is generated to $tstamp.	2160	Set the time the event is generated to $tstamp (and optionally specifies a
		2161	new $interval).
1615		2162
1616	=item $timer = $timer->interval ($interval)	2163	=item $timer = $timer->interval ($interval)
1617		2164
1618	Normally (and when C<$interval> is C<0>), the timer will automatically	2165	By default (and when C<$interval> is C<0>), the timer will automatically
1619	stop after it has fired once. If C<$interval> is non-zero, then the timer	2166	stop after it has fired once. If C<$interval> is non-zero, then the timer
1620	is automatically rescheduled at the given intervals.	2167	is automatically rescheduled at the given intervals.
1621		2168
1622	=item $timer = $timer->start	2169	=item $timer = $timer->start
1623		2170
1624	Start the timer.	2171	Start the timer.
1625		2172
1626	=item $timer = $timer->start ($tstamp)	2173	=item $timer = $timer->start ($tstamp[, $interval])
1627		2174
1628	Set the event trigger time to C<$tstamp> and start the timer.	2175	Set the event trigger time to C<$tstamp> and start the timer. Optionally
		2176	also replaces the interval.
		2177
		2178	=item $timer = $timer->after ($delay[, $interval])
		2179
		2180	Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1629		2181
1630	=item $timer = $timer->stop	2182	=item $timer = $timer->stop
1631		2183
1632	Stop the timer.	2184	Stop the timer.
1633		2185
…		…
1639		2191
1640	$term->{socket} = ...	2192	$term->{socket} = ...
1641	$term->{iow} = urxvt::iow	2193	$term->{iow} = urxvt::iow
1642	->new	2194	->new
1643	->fd (fileno $term->{socket})	2195	->fd (fileno $term->{socket})
1644	->events (urxvt::EVENT_READ)	2196	->events (urxvt::EV_READ)
1645	->start	2197	->start
1646	->cb (sub {	2198	->cb (sub {
1647	my ($iow, $revents) = @_;	2199	my ($iow, $revents) = @_;
1648	# $revents must be 1 here, no need to check	2200	# $revents must be 1 here, no need to check
1649	sysread $term->{socket}, my $buf, 8192	2201	sysread $term->{socket}, my $buf, 8192
…		…
1662	Set the callback to be called when io events are triggered. C<$reventmask>	2214	Set the callback to be called when io events are triggered. C<$reventmask>
1663	is a bitset as described in the C<events> method.	2215	is a bitset as described in the C<events> method.
1664		2216
1665	=item $iow = $iow->fd ($fd)	2217	=item $iow = $iow->fd ($fd)
1666		2218
1667	Set the filedescriptor (not handle) to watch.	2219	Set the file descriptor (not handle) to watch.
1668		2220
1669	=item $iow = $iow->events ($eventmask)	2221	=item $iow = $iow->events ($eventmask)
1670		2222
1671	Set the event mask to watch. The only allowed values are	2223	Set the event mask to watch. The only allowed values are
1672	C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed	2224	C<urxvt::EV_READ> and C<urxvt::EV_WRITE>, which might be ORed
1673	together, or C<urxvt::EVENT_NONE>.	2225	together, or C<urxvt::EV_NONE>.
1674		2226
1675	=item $iow = $iow->start	2227	=item $iow = $iow->start
1676		2228
1677	Start watching for requested events on the given handle.	2229	Start watching for requested events on the given handle.
1678		2230
1679	=item $iow = $iow->stop	2231	=item $iow = $iow->stop
1680		2232
1681	Stop watching for events on the given filehandle.	2233	Stop watching for events on the given file handle.
		2234
		2235	=back
		2236
		2237	=head2 The C<urxvt::iw> Class
		2238
		2239	This class implements idle watchers, that get called automatically when
		2240	the process is idle. They should return as fast as possible, after doing
		2241	some useful work.
		2242
		2243	=over 4
		2244
		2245	=item $iw = new urxvt::iw
		2246
		2247	Create a new idle watcher object in stopped state.
		2248
		2249	=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
		2250
		2251	Set the callback to be called when the watcher triggers.
		2252
		2253	=item $timer = $timer->start
		2254
		2255	Start the watcher.
		2256
		2257	=item $timer = $timer->stop
		2258
		2259	Stop the watcher.
		2260
		2261	=back
		2262
		2263	=head2 The C<urxvt::pw> Class
		2264
		2265	This class implements process watchers. They create an event whenever a
		2266	process exits, after which they stop automatically.
		2267
		2268	my $pid = fork;
		2269	...
		2270	$term->{pw} = urxvt::pw
		2271	->new
		2272	->start ($pid)
		2273	->cb (sub {
		2274	my ($pw, $exit_status) = @_;
		2275	...
		2276	});
		2277
		2278	=over 4
		2279
		2280	=item $pw = new urxvt::pw
		2281
		2282	Create a new process watcher in stopped state.
		2283
		2284	=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
		2285
		2286	Set the callback to be called when the timer triggers.
		2287
		2288	=item $pw = $timer->start ($pid)
		2289
		2290	Tells the watcher to start watching for process C<$pid>.
		2291
		2292	=item $pw = $pw->stop
		2293
		2294	Stop the watcher.
1682		2295
1683	=back	2296	=back
1684		2297
1685	=head1 ENVIRONMENT	2298	=head1 ENVIRONMENT
1686		2299
…		…
1695		2308
1696	=item >= 3 - script loading and management	2309	=item >= 3 - script loading and management
1697		2310
1698	=item >=10 - all called hooks	2311	=item >=10 - all called hooks
1699		2312
1700	=item >=11 - hook reutrn values	2313	=item >=11 - hook return values
1701		2314
1702	=back	2315	=back
1703		2316
1704	=head1 AUTHOR	2317	=head1 AUTHOR
1705		2318
1706	Marc Lehmann <pcg@goof.com>	2319	Marc Lehmann <schmorp@schmorp.de>
1707	http://software.schmorp.de/pkg/rxvt-unicode	2320	http://software.schmorp.de/pkg/rxvt-unicode
1708		2321
1709	=cut	2322	=cut
1710		2323
1711	1	2324	1
		2325
		2326	# vim: sw=3:

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