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Revision 1.89 by root, Thu Jan 12 12:10:06 2006 UTC vs.
Revision 1.198 by root, Tue Oct 4 22:25:14 2011 UTC

…		…
17		17
18	@@RXVT_NAME@@ --perl-lib $HOME -pe grab_test	18	@@RXVT_NAME@@ --perl-lib $HOME -pe grab_test
19		19
20	=head1 DESCRIPTION	20	=head1 DESCRIPTION
21		21
22	Everytime a terminal object gets created, extension scripts specified via	22	Every time a terminal object gets created, extension scripts specified via
23	the C<perl> resource are loaded and associated with it.	23	the C<perl> resource are loaded and associated with it.
24		24
25	Scripts are compiled in a 'use strict' and 'use utf8' environment, and	25	Scripts are compiled in a 'use strict' and 'use utf8' environment, and
26	thus must be encoded as UTF-8.	26	thus must be encoded as UTF-8.
27		27
28	Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where	28	Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where
29	scripts will be shared (but not enabled) for all terminals.	29	scripts will be shared (but not enabled) for all terminals.
30		30
		31	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 the following bindable keyboard command:	85	This extension also offers following bindable keyboard commands:
72		86
73	=over 4	87	=over 4
74		88
75	=item rot13	89	=item rot13
76		90
…		…
83	=item option-popup (enabled by default)	97	=item option-popup (enabled by default)
84		98
85	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
86	runtime.	100	runtime.
87		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
88	=item selection-popup (enabled by default)	119	=item selection-popup (enabled by default)
89		120
90	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
91	text into various other formats/action (such as uri unescaping, perl	122	text into various other formats/action (such as uri unescaping, perl
92	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	};
93		143
94	=item searchable-scrollback<hotkey> (enabled by default)	144	=item searchable-scrollback<hotkey> (enabled by default)
95		145
96	Adds regex search functionality to the scrollback buffer, triggered	146	Adds regex search functionality to the scrollback buffer, triggered
97	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
…		…
102	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>
103	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
104	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
105	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
106	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
107	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.
108		189
109	=item selection-autotransform	190	=item selection-autotransform
110		191
111	This selection allows you to do automatic transforms on a selection	192	This selection allows you to do automatic transforms on a selection
112	whenever a selection is made.	193	whenever a selection is made.
…		…
120		201
121	For example, the following will transform selections of the form	202	For example, the following will transform selections of the form
122	C<filename:number>, often seen in compiler messages, into C<vi +$filename	203	C<filename:number>, often seen in compiler messages, into C<vi +$filename
123	$word>:	204	$word>:
124		205
125	URxvt.selection-autotransform.0: s/^(\\S+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/	206	URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
126		207
127	And this example matches the same,but replaces it with vi-commands you can	208	And this example matches the same,but replaces it with vi-commands you can
128	paste directly into your (vi :) editor:	209	paste directly into your (vi :) editor:
129		210
130	URxvt.selection-autotransform.0: s/^(S+):(d+):?$/\\x1b:e \\Q$1\\E\\x0d:$2\\x0d/	211	URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
131		212
132	=item mark-urls	213	Of course, this can be modified to suit your needs and your editor :)
133		214
		215	To expand the example above to typical perl error messages ("XXX at
		216	FILENAME line YYY."), you need a slightly more elaborate solution:
		217
		218	URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
		219	URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/: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
134	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
135	make them clickable. When middle-clicked, the program specified in the	251	matching a certain pattern and make it clickable. When clicked with the
136	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
137	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.
138		315
139	=item block-graphics-to-ascii	316	=item block-graphics-to-ascii
140		317
141	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
142	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
143	similar-looking ascii character.	320	similar-looking ascii character.
144		321
145	=item digital-clock	322	=item digital-clock
146		323
147	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.
148		393
149	=item example-refresh-hooks	394	=item example-refresh-hooks
150		395
151	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
152	window. Illustrates overwriting the refresh callbacks to create your own	397	window. Illustrates overwriting the refresh callbacks to create your own
153	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.
154		404
155	=back	405	=back
156		406
157	=head1 API DOCUMENTATION	407	=head1 API DOCUMENTATION
158		408
…		…
174		424
175	=over 4	425	=over 4
176		426
177	=item $text	427	=item $text
178		428
179	Rxvt-unicodes special way of encoding text, where one "unicode" character	429	Rxvt-unicode's special way of encoding text, where one "unicode" character
180	always represents one screen cell. See L<ROW_t> for a discussion of this format.	430	always represents one screen cell. See L<ROW_t> for a discussion of this format.
181		431
182	=item $string	432	=item $string
183		433
184	A perl text string, with an emphasis on I<text>. It can store all unicode	434	A perl text string, with an emphasis on I<text>. It can store all unicode
…		…
192		442
193	=back	443	=back
194		444
195	=head2 Extension Objects	445	=head2 Extension Objects
196		446
197	Very perl extension is a perl class. A separate perl object is created	447	Every perl extension is a perl class. A separate perl object is created
198	for each terminal and each extension and passed as the first parameter to	448	for each terminal, and each terminal has its own set of extension objects,
199	hooks. So extensions can use their C<$self> object without having to think	449	which are passed as the first parameter to hooks. So extensions can use
200	about other extensions, with the exception of methods and members that	450	their C<$self> object without having to think about clashes with other
		451	extensions or other terminals, with the exception of methods and members
201	begin with an underscore character C<_>: these are reserved for internal	452	that begin with an underscore character C<_>: these are reserved for
202	use.	453	internal use.
203		454
204	Although it isn't a C<urxvt::term> object, you can call all methods of the	455	Although it isn't a C<urxvt::term> object, you can call all methods of the
205	C<urxvt::term> class on this object.	456	C<urxvt::term> class on this object.
206		457
207	It has the following methods and data members:	458	It has the following methods and data members:
…		…
228	=head2 Hooks	479	=head2 Hooks
229		480
230	The following subroutines can be declared in extension files, and will be	481	The following subroutines can be declared in extension files, and will be
231	called whenever the relevant event happens.	482	called whenever the relevant event happens.
232		483
233	The first argument passed to them is an extension oject as described in	484	The first argument passed to them is an extension object as described in
234	the in the C<Extension Objects> section.	485	the in the C<Extension Objects> section.
235		486
236	B<All> of these hooks must return a boolean value. If it is true, then the	487	B<All> of these hooks must return a boolean value. If any of the called
237	event counts as being I<consumed>, and the invocation of other hooks is	488	hooks returns true, then the event counts as being I<consumed>, and the
238	skipped, and the relevant action might not be carried out by the C++ code.	489	relevant action might not be carried out by the C++ code.
239		490
240	I<< When in doubt, return a false value (preferably C<()>). >>	491	I<< When in doubt, return a false value (preferably C<()>). >>
241		492
242	=over 4	493	=over 4
243		494
244	=item on_init $term	495	=item on_init $term
245		496
246	Called after a new terminal object has been initialized, but before	497	Called after a new terminal object has been initialized, but before
247	windows are created or the command gets run. Most methods are unsafe to	498	windows are created or the command gets run. Most methods are unsafe to
248	call or deliver senseless data, as terminal size and other characteristics	499	call or deliver senseless data, as terminal size and other characteristics
249	have not yet been determined. You can safely query and change resources,	500	have not yet been determined. You can safely query and change resources
250	though.	501	and options, though. For many purposes the C<on_start> hook is a better
		502	place.
		503
		504	=item on_start $term
		505
		506	Called at the very end of initialisation of a new terminal, just before
		507	trying to map (display) the toplevel and returning to the main loop.
		508
		509	=item on_destroy $term
		510
		511	Called whenever something tries to destroy terminal, when the terminal is
		512	still fully functional (not for long, though).
251		513
252	=item on_reset $term	514	=item on_reset $term
253		515
254	Called after the screen is "reset" for any reason, such as resizing or	516	Called after the screen is "reset" for any reason, such as resizing or
255	control sequences. Here is where you can react on changes to size-related	517	control sequences. Here is where you can react on changes to size-related
256	variables.	518	variables.
257		519
258	=item on_start $term	520	=item on_child_start $term, $pid
259		521
260	Called at the very end of initialisation of a new terminal, just before	522	Called just after the child process has been C<fork>ed.
261	returning to the mainloop.	523
		524	=item on_child_exit $term, $status
		525
		526	Called just after the child process has exited. C<$status> is the status
		527	from C<waitpid>.
262		528
263	=item on_sel_make $term, $eventtime	529	=item on_sel_make $term, $eventtime
264		530
265	Called whenever a selection has been made by the user, but before the	531	Called whenever a selection has been made by the user, but before the
266	selection text is copied, so changes to the beginning, end or type of the	532	selection text is copied, so changes to the beginning, end or type of the
…		…
273		539
274	Called whenever a selection has been copied, but before the selection is	540	Called whenever a selection has been copied, but before the selection is
275	requested from the server. The selection text can be queried and changed	541	requested from the server. The selection text can be queried and changed
276	by calling C<< $term->selection >>.	542	by calling C<< $term->selection >>.
277		543
278	Returning a true value aborts selection grabbing. It will still be hilighted.	544	Returning a true value aborts selection grabbing. It will still be highlighted.
279		545
280	=item on_sel_extend $term	546	=item on_sel_extend $term
281		547
282	Called whenever the user tries to extend the selection (e.g. with a double	548	Called whenever the user tries to extend the selection (e.g. with a double
283	click) and is either supposed to return false (normal operation), or	549	click) and is either supposed to return false (normal operation), or
284	should extend the selection itelf and return true to suppress the built-in	550	should extend the selection itself and return true to suppress the built-in
285	processing. This can happen multiple times, as long as the callback	551	processing. This can happen multiple times, as long as the callback
286	returns true, it will be called on every further click by the user and is	552	returns true, it will be called on every further click by the user and is
287	supposed to enlarge the selection more and more, if possible.	553	supposed to enlarge the selection more and more, if possible.
288		554
289	See the F<selection> example extension.	555	See the F<selection> example extension.
290		556
291	=item on_view_change $term, $offset	557	=item on_view_change $term, $offset
292		558
293	Called whenever the view offset changes, i..e the user or program	559	Called whenever the view offset changes, i.e. the user or program
294	scrolls. Offset C<0> means display the normal terminal, positive values	560	scrolls. Offset C<0> means display the normal terminal, positive values
295	show this many lines of scrollback.	561	show this many lines of scrollback.
296		562
297	=item on_scroll_back $term, $lines, $saved	563	=item on_scroll_back $term, $lines, $saved
298		564
…		…
302		568
303	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,	569	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
304	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total	570	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
305	number of lines that will be in the scrollback buffer.	571	number of lines that will be in the scrollback buffer.
306		572
307	=item on_osc_seq $term, $string	573	=item on_osc_seq $term, $op, $args, $resp
		574
		575	Called on every OSC sequence and can be used to suppress it or modify its
		576	behaviour. The default should be to return an empty list. A true value
		577	suppresses execution of the request completely. Make sure you don't get
		578	confused by recursive invocations when you output an OSC sequence within
		579	this callback.
		580
		581	C<on_osc_seq_perl> should be used for new behaviour.
		582
		583	=item on_osc_seq_perl $term, $args, $resp
308		584
309	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =	585	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
310	operating system command) is processed. Cursor position and other state	586	operating system command) is processed. Cursor position and other state
311	information is up-to-date when this happens. For interoperability, the	587	information is up-to-date when this happens. For interoperability, the
312	string should start with the extension name and a colon, to distinguish	588	string should start with the extension name (sans -osc) and a semicolon,
313	it from commands for other extensions, and this might be enforced in the	589	to distinguish it from commands for other extensions, and this might be
314	future.	590	enforced in the future.
		591
		592	For example, C<overlay-osc> uses this:
		593
		594	sub on_osc_seq_perl {
		595	my ($self, $osc, $resp) = @_;
		596
		597	return unless $osc =~ s/^overlay;//;
		598
		599	... process remaining $osc string
		600	}
315		601
316	Be careful not ever to trust (in a security sense) the data you receive,	602	Be careful not ever to trust (in a security sense) the data you receive,
317	as its source can not easily be controleld (e-mail content, messages from	603	as its source can not easily be controlled (e-mail content, messages from
318	other users on the same system etc.).	604	other users on the same system etc.).
		605
		606	For responses, C<$resp> contains the end-of-args separator used by the
		607	sender.
319		608
320	=item on_add_lines $term, $string	609	=item on_add_lines $term, $string
321		610
322	Called whenever text is about to be output, with the text as argument. You	611	Called whenever text is about to be output, with the text as argument. You
323	can filter/change and output the text yourself by returning a true value	612	can filter/change and output the text yourself by returning a true value
…		…
328	=item on_tt_write $term, $octets	617	=item on_tt_write $term, $octets
329		618
330	Called whenever some data is written to the tty/pty and can be used to	619	Called whenever some data is written to the tty/pty and can be used to
331	suppress or filter tty input.	620	suppress or filter tty input.
332		621
		622	=item on_tt_paste $term, $octets
		623
		624	Called whenever text is about to be pasted, with the text as argument. You
		625	can filter/change and paste the text yourself by returning a true value
		626	and calling C<< $term->tt_paste >> yourself. C<$octets> is
		627	locale-encoded.
		628
333	=item on_line_update $term, $row	629	=item on_line_update $term, $row
334		630
335	Called whenever a line was updated or changed. Can be used to filter	631	Called whenever a line was updated or changed. Can be used to filter
336	screen output (e.g. underline urls or other useless stuff). Only lines	632	screen output (e.g. underline urls or other useless stuff). Only lines
337	that are being shown will be filtered, and, due to performance reasons,	633	that are being shown will be filtered, and, due to performance reasons,
…		…
344	later with the already-modified line (e.g. if unrelated parts change), so	640	later with the already-modified line (e.g. if unrelated parts change), so
345	you cannot just toggle rendition bits, but only set them.	641	you cannot just toggle rendition bits, but only set them.
346		642
347	=item on_refresh_begin $term	643	=item on_refresh_begin $term
348		644
349	Called just before the screen gets redrawn. Can be used for overlay	645	Called just before the screen gets redrawn. Can be used for overlay or
350	or similar effects by modify terminal contents in refresh_begin, and	646	similar effects by modifying the terminal contents in refresh_begin, and
351	restoring them in refresh_end. The built-in overlay and selection display	647	restoring them in refresh_end. The built-in overlay and selection display
352	code is run after this hook, and takes precedence.	648	code is run after this hook, and takes precedence.
353		649
354	=item on_refresh_end $term	650	=item on_refresh_end $term
355		651
356	Called just after the screen gets redrawn. See C<on_refresh_begin>.	652	Called just after the screen gets redrawn. See C<on_refresh_begin>.
357		653
358	=item on_keyboard_command $term, $string	654	=item on_user_command $term, $string
359		655
360	Called whenever the user presses a key combination that has a	656	Called whenever a user-configured event is being activated (e.g. via
361	C<perl:string> action bound to it (see description of the B<keysym>	657	a C<perl:string> action bound to a key, see description of the B<keysym>
362	resource in the @@RXVT_NAME@@(1) manpage).	658	resource in the @@RXVT_NAME@@(1) manpage).
		659
		660	The event is simply the action string. This interface is assumed to change
		661	slightly in the future.
		662
		663	=item on_resize_all_windows $term, $new_width, $new_height
		664
		665	Called just after the new window size has been calculated, but before
		666	windows are actually being resized or hints are being set. If this hook
		667	returns TRUE, setting of the window hints is being skipped.
		668
		669	=item on_x_event $term, $event
		670
		671	Called on every X event received on the vt window (and possibly other
		672	windows). Should only be used as a last resort. Most event structure
		673	members are not passed.
		674
		675	=item on_root_event $term, $event
		676
		677	Like C<on_x_event>, but is called for events on the root window.
363		678
364	=item on_focus_in $term	679	=item on_focus_in $term
365		680
366	Called whenever the window gets the keyboard focus, before rxvt-unicode	681	Called whenever the window gets the keyboard focus, before rxvt-unicode
367	does focus in processing.	682	does focus in processing.
368		683
369	=item on_focus_out $term	684	=item on_focus_out $term
370		685
371	Called wheneever the window loses keyboard focus, before rxvt-unicode does	686	Called whenever the window loses keyboard focus, before rxvt-unicode does
372	focus out processing.	687	focus out processing.
373		688
		689	=item on_configure_notify $term, $event
		690
		691	=item on_property_notify $term, $event
		692
374	=item on_key_press $term, $event, $keysym, $octets	693	=item on_key_press $term, $event, $keysym, $octets
375		694
376	=item on_key_release $term, $event, $keysym	695	=item on_key_release $term, $event, $keysym
377		696
378	=item on_button_press $term, $event	697	=item on_button_press $term, $event
…		…
383		702
384	=item on_map_notify $term, $event	703	=item on_map_notify $term, $event
385		704
386	=item on_unmap_notify $term, $event	705	=item on_unmap_notify $term, $event
387		706
388	Called whenever the corresponding X event is received for the terminal If	707	Called whenever the corresponding X event is received for the terminal. If
389	the hook returns true, then the even will be ignored by rxvt-unicode.	708	the hook returns true, then the event will be ignored by rxvt-unicode.
390		709
391	The event is a hash with most values as named by Xlib (see the XEvent	710	The event is a hash with most values as named by Xlib (see the XEvent
392	manpage), with the additional members C<row> and C<col>, which are the row	711	manpage), with the additional members C<row> and C<col>, which are the
393	and column under the mouse cursor.	712	(real, not screen-based) row and column under the mouse cursor.
394		713
395	C<on_key_press> additionally receives the string rxvt-unicode would	714	C<on_key_press> additionally receives the string rxvt-unicode would
396	output, if any, in locale-specific encoding.	715	output, if any, in locale-specific encoding.
397		716
398	subwindow.	717	subwindow.
		718
		719	=item on_client_message $term, $event
		720
		721	=item on_wm_protocols $term, $event
		722
		723	=item on_wm_delete_window $term, $event
		724
		725	Called when various types of ClientMessage events are received (all with
		726	format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
		727
		728	=item on_bell $term
		729
		730	Called on receipt of a bell character.
399		731
400	=back	732	=back
401		733
402	=cut	734	=cut
403		735
…		…
409	use Scalar::Util ();	741	use Scalar::Util ();
410	use List::Util ();	742	use List::Util ();
411		743
412	our $VERSION = 1;	744	our $VERSION = 1;
413	our $TERM;	745	our $TERM;
		746	our @TERM_INIT;
		747	our @TERM_EXT;
414	our @HOOKNAME;	748	our @HOOKNAME;
415	our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;	749	our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
416	our %OPTION;	750	our %OPTION;
417		751
418	our $LIBDIR;	752	our $LIBDIR;
419	our $RESNAME;	753	our $RESNAME;
420	our $RESCLASS;	754	our $RESCLASS;
421	our $RXVTNAME;	755	our $RXVTNAME;
422		756
		757	our $NOCHAR = chr 0xffff;
		758
423	=head2 Variables in the C<urxvt> Package	759	=head2 Variables in the C<urxvt> Package
424		760
425	=over 4	761	=over 4
426		762
427	=item $urxvt::LIBDIR	763	=item $urxvt::LIBDIR
…		…
440	=item $urxvt::TERM	776	=item $urxvt::TERM
441		777
442	The current terminal. This variable stores the current C<urxvt::term>	778	The current terminal. This variable stores the current C<urxvt::term>
443	object, whenever a callback/hook is executing.	779	object, whenever a callback/hook is executing.
444		780
		781	=item @urxvt::TERM_INIT
		782
		783	All code references in this array will be called as methods of the next newly
		784	created C<urxvt::term> object (during the C<on_init> phase). The array
		785	gets cleared before the code references that were in it are being executed,
		786	so references can push themselves onto it again if they so desire.
		787
		788	This complements to the perl-eval command line option, but gets executed
		789	first.
		790
		791	=item @urxvt::TERM_EXT
		792
		793	Works similar to C<@TERM_INIT>, but contains perl package/class names, which
		794	get registered as normal extensions after calling the hooks in C<@TERM_INIT>
		795	but before other extensions. Gets cleared just like C<@TERM_INIT>.
		796
445	=back	797	=back
446		798
447	=head2 Functions in the C<urxvt> Package	799	=head2 Functions in the C<urxvt> Package
448		800
449	=over 4	801	=over 4
450		802
451	=item urxvt::fatal $errormessage	803	=item urxvt::fatal $errormessage
452		804
453	Fatally aborts execution with the given error message. Avoid at all	805	Fatally aborts execution with the given error message (which should
454	costs! The only time this is acceptable is when the terminal process	806	include a trailing newline). Avoid at all costs! The only time this
455	starts up.	807	is acceptable (and useful) is in the init hook, where it prevents the
		808	terminal from starting up.
456		809
457	=item urxvt::warn $string	810	=item urxvt::warn $string
458		811
459	Calls C<rxvt_warn> with the given string which should not include a	812	Calls C<rxvt_warn> with the given string which should include a trailing
460	newline. The module also overwrites the C<warn> builtin with a function	813	newline. The module also overwrites the C<warn> builtin with a function
461	that calls this function.	814	that calls this function.
462		815
463	Using this function has the advantage that its output ends up in the	816	Using this function has the advantage that its output ends up in the
464	correct place, e.g. on stderr of the connecting urxvtc client.	817	correct place, e.g. on stderr of the connecting urxvtc client.
465		818
466	Messages have a size limit of 1023 bytes currently.	819	Messages have a size limit of 1023 bytes currently.
467		820
468	=item $is_safe = urxvt::safe	821	=item @terms = urxvt::termlist
469		822
470	Returns true when it is safe to do potentially unsafe things, such as	823	Returns all urxvt::term objects that exist in this process, regardless of
471	evaluating perl code specified by the user. This is true when urxvt was	824	whether they are started, being destroyed etc., so be careful. Only term
472	started setuid or setgid.	825	objects that have perl extensions attached will be returned (because there
		826	is no urxvt::term object associated with others).
473		827
474	=item $time = urxvt::NOW	828	=item $time = urxvt::NOW
475		829
476	Returns the "current time" (as per the event loop).	830	Returns the "current time" (as per the event loop).
477		831
478	=item urxvt::CurrentTime	832	=item urxvt::CurrentTime
479		833
480	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,	834	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
481	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,	835	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
482	Button4Mask, Button5Mask, AnyModifier	836	Button4Mask, Button5Mask, AnyModifier
		837
		838	=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
		839	ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
		840	PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
		841	Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
		842	KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
		843	ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
		844	FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
		845
		846	=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
		847	EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
		848	GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
		849	UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
		850	ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
		851	CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
		852	SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
483		853
484	Various constants for use in X calls and event processing.	854	Various constants for use in X calls and event processing.
485		855
486	=back	856	=back
487		857
…		…
504		874
505	=item $rend = urxvt::OVERLAY_RSTYLE	875	=item $rend = urxvt::OVERLAY_RSTYLE
506		876
507	Return the rendition mask used for overlays by default.	877	Return the rendition mask used for overlays by default.
508		878
509	=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline	879	=item $rendbit = urxvt::RS_Bold, urxvt::RS_Italic, urxvt::RS_Blink,
		880	urxvt::RS_RVid, urxvt::RS_Uline
510		881
511	Return the bit that enabled bold, italic, blink, reverse-video and	882	Return the bit that enabled bold, italic, blink, reverse-video and
512	underline, respectively. To enable such a style, just logically OR it into	883	underline, respectively. To enable such a style, just logically OR it into
513	the bitset.	884	the bitset.
514		885
…		…
520		891
521	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour	892	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
522		893
523	=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour	894	=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
524		895
		896	=item $rend = urxvt::SET_COLOR $rend, $new_fg, $new_bg
		897
525	Replace the foreground/background colour in the rendition mask with the	898	Replace the foreground/background colour in the rendition mask with the
526	specified one.	899	specified one.
527		900
528	=item $value = urxvt::GET_CUSTOM $rend	901	=item $value = urxvt::GET_CUSTOM $rend
529		902
…		…
538	=back	911	=back
539		912
540	=cut	913	=cut
541		914
542	BEGIN {	915	BEGIN {
543	urxvt->bootstrap;
544
545	# overwrite perl's warn	916	# overwrite perl's warn
546	*CORE::GLOBAL::warn = sub {	917	*CORE::GLOBAL::warn = sub {
547	my $msg = join "", @_;	918	my $msg = join "", @_;
548	$msg .= "\n"	919	$msg .= "\n"
549	unless $msg =~ /\n$/;	920	unless $msg =~ /\n$/;
550	urxvt::warn ($msg);	921	urxvt::warn ($msg);
551	};	922	};
552
553	# %ENV is the original startup environment
554	delete $ENV{IFS};
555	delete $ENV{CDPATH};
556	delete $ENV{BASH_ENV};
557	$ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
558	}	923	}
559		924
560	my @hook_count;	925	no warnings 'utf8';
		926
561	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};	927	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
562		928
563	sub verbose {	929	sub verbose {
564	my ($level, $msg) = @_;	930	my ($level, $msg) = @_;
565	warn "$msg\n" if $level <= $verbosity;	931	warn "$msg\n" if $level <= $verbosity;
566	}	932	}
567		933
568	my $extension_pkg = "extension0000";
569	my %extension_pkg;	934	my %extension_pkg;
570		935
571	# load a single script into its own package, once only	936	# load a single script into its own package, once only
572	sub extension_package($) {	937	sub extension_package($) {
573	my ($path) = @_;	938	my ($path) = @_;
574		939
575	$extension_pkg{$path} ||= do {	940	$extension_pkg{$path} ||= do {
576	my $pkg = "urxvt::" . ($extension_pkg++);	941	$path =~ /([^\/\\]+)$/;
		942	my $pkg = $1;
		943	$pkg =~ s/[^[:word:]]/_/g;
		944	$pkg = "urxvt::ext::$pkg";
577		945
578	verbose 3, "loading extension '$path' into package '$pkg'";	946	verbose 3, "loading extension '$path' into package '$pkg'";
579		947
580	open my $fh, "<:raw", $path	948	open my $fh, "<:raw", $path
581	or die "$path: $!";	949	or die "$path: $!";
582		950
583	my $source = untaint	951	my $source =
584	"package $pkg; use strict; use utf8;\n"	952	"package $pkg; use strict; use utf8; no warnings 'utf8';\n"
585	. "use base urxvt::term::extension::;\n"
586	. "#line 1 \"$path\"\n{\n"	953	. "#line 1 \"$path\"\n{\n"
587	. (do { local $/; <$fh> })	954	. (do { local $/; <$fh> })
588	. "\n};\n1";	955	. "\n};\n1";
589		956
590	eval $source	957	eval $source
…		…
601	local $TERM = shift;	968	local $TERM = shift;
602	my $htype = shift;	969	my $htype = shift;
603		970
604	if ($htype == 0) { # INIT	971	if ($htype == 0) { # INIT
605	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");	972	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
606		973
607	my %ext_arg;	974	my %ext_arg;
608		975
		976	{
		977	my @init = @TERM_INIT;
		978	@TERM_INIT = ();
		979	$_->($TERM) for @init;
		980	my @pkg = @TERM_EXT;
		981	@TERM_EXT = ();
		982	$TERM->register_package ($_) for @pkg;
		983	}
		984
609	for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {	985	for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
610	if ($_ eq "default") {	986	if ($_ eq "default") {
611	$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback);	987	$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
612	} elsif (/^-(.*)$/) {	988	} elsif (/^-(.*)$/) {
613	delete $ext_arg{$1};	989	delete $ext_arg{$1};
614	} elsif (/^([^<]+)<(.*)>$/) {	990	} elsif (/^([^<]+)<(.*)>$/) {
615	push @{ $ext_arg{$1} }, $2;	991	push @{ $ext_arg{$1} }, $2;
616	} else {	992	} else {
617	$ext_arg{$_} ||= [];	993	$ext_arg{$_} ||= [];
618	}	994	}
619	}	995	}
620		996
621	while (my ($ext, $argv) = each %ext_arg) {	997	for my $ext (sort keys %ext_arg) {
622	my @files = grep -f $_, map "$_/$ext", @dirs;	998	my @files = grep -f $_, map "$_/$ext", @dirs;
623		999
624	if (@files) {	1000	if (@files) {
625	$TERM->register_package (extension_package $files[0], $argv);	1001	$TERM->register_package (extension_package $files[0], $ext_arg{$ext});
626	} else {	1002	} else {
627	warn "perl extension '$ext' not found in perl library search path\n";	1003	warn "perl extension '$ext' not found in perl library search path\n";
628	}	1004	}
629	}	1005	}
630		1006
…		…
636		1012
637	if (my $cb = $TERM->{_hook}[$htype]) {	1013	if (my $cb = $TERM->{_hook}[$htype]) {
638	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"	1014	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
639	if $verbosity >= 10;	1015	if $verbosity >= 10;
640		1016
641	keys %$cb;	1017	for my $pkg (keys %$cb) {
642
643	while (my ($pkg, $cb) = each %$cb) {
644	$retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) }	1018	my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg}, @_) };
645	and last;	1019	$retval ||= $retval_;
646		1020
647	if ($@) {	1021	if ($@) {
648	$TERM->ungrab; # better to lose the grab than the session	1022	$TERM->ungrab; # better to lose the grab than the session
649	warn $@;	1023	warn $@;
650	}	1024	}
…		…
653	verbose 11, "$HOOKNAME[$htype] returning <$retval>"	1027	verbose 11, "$HOOKNAME[$htype] returning <$retval>"
654	if $verbosity >= 11;	1028	if $verbosity >= 11;
655	}	1029	}
656		1030
657	if ($htype == 1) { # DESTROY	1031	if ($htype == 1) { # DESTROY
658	if (my $hook = delete $TERM->{_hook}) {
659	for my $htype (0..$#$hook) {
660	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
661	or set_should_invoke $htype, 0;
662	}
663	}
664
665	# clear package objects	1032	# clear package objects
666	%$_ = () for values %{ $TERM->{_pkg} };	1033	%$_ = () for values %{ $TERM->{_pkg} };
667		1034
668	# clear package	1035	# clear package
669	%$TERM = ();	1036	%$TERM = ();
670	}	1037	}
671		1038
672	$retval	1039	$retval
673	}	1040	}
674		1041
675	sub exec_async(@) {	1042	sub SET_COLOR($$$) {
676	my $pid = fork;	1043	SET_BGCOLOR (SET_FGCOLOR ($_[0], $_[1]), $_[2])
		1044	}
677		1045
678	return	1046	sub rend2mask {
679	if !defined $pid or $pid;	1047	no strict 'refs';
680		1048	my ($str, $mask) = (@_, 0);
681	%ENV = %{ $TERM->env };	1049	my %color = ( fg => undef, bg => undef );
682		1050	my @failed;
683	exec @_;	1051	for my $spec ( split /\s+/, $str ) {
684	_exit 255;	1052	if ( $spec =~ /^([fb]g)[_:-]?(\d+)/i ) {
		1053	$color{lc($1)} = $2;
		1054	} else {
		1055	my $neg = $spec =~ s/^[-^]//;
		1056	unless ( exists &{"RS_$spec"} ) {
		1057	push @failed, $spec;
		1058	next;
		1059	}
		1060	my $cur = &{"RS_$spec"};
		1061	if ( $neg ) {
		1062	$mask &= ~$cur;
		1063	} else {
		1064	$mask |= $cur;
		1065	}
		1066	}
		1067	}
		1068	($mask, @color{qw(fg bg)}, \@failed)
685	}	1069	}
686		1070
687	# urxvt::term::extension	1071	# urxvt::term::extension
688		1072
689	package urxvt::term::extension;	1073	package urxvt::term::extension;
…		…
695	while (my ($name, $cb) = each %hook) {	1079	while (my ($name, $cb) = each %hook) {
696	my $htype = $HOOKTYPE{uc $name};	1080	my $htype = $HOOKTYPE{uc $name};
697	defined $htype	1081	defined $htype
698	or Carp::croak "unsupported hook type '$name'";	1082	or Carp::croak "unsupported hook type '$name'";
699		1083
		1084	$self->set_should_invoke ($htype, +1)
700	unless (exists $self->{term}{_hook}[$htype]{$pkg}) {	1085	unless exists $self->{term}{_hook}[$htype]{$pkg};
701	$hook_count[$htype]++
702	or urxvt::set_should_invoke $htype, 1;
703	}
704		1086
705	$self->{term}{_hook}[$htype]{$pkg} = $cb;	1087	$self->{term}{_hook}[$htype]{$pkg} = $cb;
706	}	1088	}
707	}	1089	}
708		1090
…		…
713	for my $name (@hook) {	1095	for my $name (@hook) {
714	my $htype = $HOOKTYPE{uc $name};	1096	my $htype = $HOOKTYPE{uc $name};
715	defined $htype	1097	defined $htype
716	or Carp::croak "unsupported hook type '$name'";	1098	or Carp::croak "unsupported hook type '$name'";
717		1099
		1100	$self->set_should_invoke ($htype, -1)
718	if (delete $self->{term}{_hook}[$htype]{$pkg}) {	1101	if delete $self->{term}{_hook}[$htype]{$pkg};
719	--$hook_count[$htype]
720	or urxvt::set_should_invoke $htype, 0;
721	}
722	}	1102	}
723	}	1103	}
724		1104
725	our $AUTOLOAD;	1105	our $AUTOLOAD;
726		1106
…		…
764	is that you cannot use blocking APIs, but the non-blocking variant should	1144	is that you cannot use blocking APIs, but the non-blocking variant should
765	work.	1145	work.
766		1146
767	=cut	1147	=cut
768		1148
769	our $VERSION = 1;	1149	our $VERSION = '5.23';
770		1150
771	$INC{"urxvt/anyevent.pm"} = 1; # mark us as there	1151	$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
772	push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];	1152	push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
773		1153
774	sub timer {	1154	sub timer {
…		…
776		1156
777	my $cb = $arg{cb};	1157	my $cb = $arg{cb};
778		1158
779	urxvt::timer	1159	urxvt::timer
780	->new	1160	->new
781	->start (urxvt::NOW + $arg{after})	1161	->after ($arg{after}, $arg{interval})
782	->cb (sub {	1162	->cb ($arg{interval} ? $cb : sub {
783	$_[0]->stop; # need to cancel manually	1163	$_[0]->stop; # need to cancel manually
784	$cb->();	1164	$cb->();
785	})	1165	})
786	}	1166	}
787		1167
788	sub io {	1168	sub io {
789	my ($class, %arg) = @_;	1169	my ($class, %arg) = @_;
790		1170
791	my $cb = $arg{cb};	1171	my $cb = $arg{cb};
		1172	my $fd = fileno $arg{fh};
		1173	defined $fd or $fd = $arg{fh};
792		1174
793	bless [$arg{fh}, urxvt::iow	1175	bless [$arg{fh}, urxvt::iow
794	->new	1176	->new
795	->fd (fileno $arg{fh})	1177	->fd ($fd)
796	->events (($arg{poll} =~ /r/ ? 1 : 0)	1178	->events (($arg{poll} =~ /r/ ? 1 : 0)
797	| ($arg{poll} =~ /w/ ? 2 : 0))	1179	| ($arg{poll} =~ /w/ ? 2 : 0))
798	->start	1180	->start
799	->cb (sub {	1181	->cb ($cb)
800	$cb->(($_[1] & 1 ? 'r' : '')
801	. ($_[1] & 2 ? 'w' : ''));
802	})],
803	urxvt::anyevent::	1182	], urxvt::anyevent::
		1183	}
		1184
		1185	sub idle {
		1186	my ($class, %arg) = @_;
		1187
		1188	my $cb = $arg{cb};
		1189
		1190	urxvt::iw
		1191	->new
		1192	->start
		1193	->cb ($cb)
		1194	}
		1195
		1196	sub child {
		1197	my ($class, %arg) = @_;
		1198
		1199	my $cb = $arg{cb};
		1200
		1201	urxvt::pw
		1202	->new
		1203	->start ($arg{pid})
		1204	->cb (sub {
		1205	$_[0]->stop; # need to cancel manually
		1206	$cb->($_[0]->rpid, $_[0]->rstatus);
		1207	})
804	}	1208	}
805		1209
806	sub DESTROY {	1210	sub DESTROY {
807	$_[0][1]->stop;	1211	$_[0][1]->stop;
808	}	1212	}
809		1213
810	sub condvar {	1214	# only needed for AnyEvent < 6 compatibility
811	bless \my $flag, urxvt::anyevent::condvar::	1215	sub one_event {
812	}
813
814	sub urxvt::anyevent::condvar::broadcast {
815	${$_[0]}++;
816	}
817
818	sub urxvt::anyevent::condvar::wait {
819	unless (${$_[0]}) {
820	Carp::croak "AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API";	1216	Carp::croak "AnyEvent->one_event blocking wait unsupported in urxvt, use a non-blocking API";
821	}
822	}	1217	}
823		1218
824	package urxvt::term;	1219	package urxvt::term;
825		1220
826	=head2 The C<urxvt::term> Class	1221	=head2 The C<urxvt::term> Class
…		…
831		1226
832	# find on_xxx subs in the package and register them	1227	# find on_xxx subs in the package and register them
833	# as hooks	1228	# as hooks
834	sub register_package {	1229	sub register_package {
835	my ($self, $pkg, $argv) = @_;	1230	my ($self, $pkg, $argv) = @_;
		1231
		1232	no strict 'refs';
		1233
		1234	urxvt::verbose 6, "register package $pkg to $self";
		1235
		1236	@{"$pkg\::ISA"} = urxvt::term::extension::;
836		1237
837	my $proxy = bless {	1238	my $proxy = bless {
838	_pkg => $pkg,	1239	_pkg => $pkg,
839	argv => $argv,	1240	argv => $argv,
840	}, $pkg;	1241	}, $pkg;
…		…
856	hash which defines the environment of the new terminal.	1257	hash which defines the environment of the new terminal.
857		1258
858	Croaks (and probably outputs an error message) if the new instance	1259	Croaks (and probably outputs an error message) if the new instance
859	couldn't be created. Returns C<undef> if the new instance didn't	1260	couldn't be created. Returns C<undef> if the new instance didn't
860	initialise perl, and the terminal object otherwise. The C<init> and	1261	initialise perl, and the terminal object otherwise. The C<init> and
861	C<start> hooks will be called during this call.	1262	C<start> hooks will be called before this call returns, and are free to
		1263	refer to global data (which is race free).
862		1264
863	=cut	1265	=cut
864		1266
865	sub new {	1267	sub new {
866	my ($class, $env, @args) = @_;	1268	my ($class, $env, @args) = @_;
867		1269
		1270	$env or Carp::croak "environment hash missing in call to urxvt::term->new";
		1271	@args or Carp::croak "name argument missing in call to urxvt::term->new";
		1272
868	_new ([ map "$_=$env->{$_}", keys %$env ], @args);	1273	_new ([ map "$_=$env->{$_}", keys %$env ], \@args);
869	}	1274	}
870		1275
871	=item $term->destroy	1276	=item $term->destroy
872		1277
873	Destroy the terminal object (close the window, free resources	1278	Destroy the terminal object (close the window, free resources
874	etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event	1279	etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
875	watchers (timers, io watchers) are still active.	1280	watchers (timers, io watchers) are still active.
876		1281
		1282	=item $term->exec_async ($cmd[, @args])
		1283
		1284	Works like the combination of the C<fork>/C<exec> builtins, which executes
		1285	("starts") programs in the background. This function takes care of setting
		1286	the user environment before exec'ing the command (e.g. C<PATH>) and should
		1287	be preferred over explicit calls to C<exec> or C<system>.
		1288
		1289	Returns the pid of the subprocess or C<undef> on error.
		1290
		1291	=cut
		1292
		1293	sub exec_async {
		1294	my $self = shift;
		1295
		1296	my $pid = fork;
		1297
		1298	return $pid
		1299	if !defined $pid or $pid;
		1300
		1301	%ENV = %{ $self->env };
		1302
		1303	exec @_;
		1304	urxvt::_exit 255;
		1305	}
		1306
877	=item $isset = $term->option ($optval[, $set])	1307	=item $isset = $term->option ($optval[, $set])
878		1308
879	Returns true if the option specified by C<$optval> is enabled, and	1309	Returns true if the option specified by C<$optval> is enabled, and
880	optionally change it. All option values are stored by name in the hash	1310	optionally change it. All option values are stored by name in the hash
881	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.	1311	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
882		1312
883	Here is a a likely non-exhaustive list of option names, please see the	1313	Here is a likely non-exhaustive list of option names, please see the
884	source file F</src/optinc.h> to see the actual list:	1314	source file F</src/optinc.h> to see the actual list:
885		1315
886	borderLess console cursorBlink cursorUnderline hold iconic insecure	1316	borderLess buffered console cursorBlink cursorUnderline hold iconic
887	intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage	1317	insecure intensityStyles iso14755 iso14755_52 jumpScroll loginShell
		1318	mapAlert meta8 mouseWheelScrollPage override_redirect pastableTabs
888	pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating	1319	pointerBlank reverseVideo scrollBar scrollBar_floating scrollBar_right
889	scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer	1320	scrollTtyKeypress scrollTtyOutput scrollWithBuffer secondaryScreen
890	secondaryScreen secondaryScroll skipBuiltinGlyphs transparent	1321	secondaryScroll skipBuiltinGlyphs skipScroll transparent tripleclickwords
891	tripleclickwords utmpInhibit visualBell	1322	urgentOnBell utmpInhibit visualBell
892		1323
893	=item $value = $term->resource ($name[, $newval])	1324	=item $value = $term->resource ($name[, $newval])
894		1325
895	Returns the current resource value associated with a given name and	1326	Returns the current resource value associated with a given name and
896	optionally sets a new value. Setting values is most useful in the C<init>	1327	optionally sets a new value. Setting values is most useful in the C<init>
…		…
905	likely change).	1336	likely change).
906		1337
907	Please note that resource strings will currently only be freed when the	1338	Please note that resource strings will currently only be freed when the
908	terminal is destroyed, so changing options frequently will eat memory.	1339	terminal is destroyed, so changing options frequently will eat memory.
909		1340
910	Here is a a likely non-exhaustive list of resource names, not all of which	1341	Here is a likely non-exhaustive list of resource names, not all of which
911	are supported in every build, please see the source file F</src/rsinc.h>	1342	are supported in every build, please see the source file F</src/rsinc.h>
912	to see the actual list:	1343	to see the actual list:
913		1344
914	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont	1345	answerbackstring backgroundPixmap backspace_key blendtype blurradius
915	borderLess color cursorBlink cursorUnderline cutchars delete_key	1346	boldFont boldItalicFont borderLess buffered chdir color cursorBlink
916	display_name embed ext_bwidth fade font geometry hold iconName	1347	cursorUnderline cutchars delete_key depth display_name embed ext_bwidth
917	imFont imLocale inputMethod insecure int_bwidth intensityStyles	1348	fade font geometry hold iconName iconfile imFont imLocale inputMethod
		1349	insecure int_bwidth intensityStyles iso14755 iso14755_52 italicFont
918	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier	1350	jumpScroll letterSpace lineSpace loginShell mapAlert meta8 modifier
919	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2	1351	mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
920	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd	1352	perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
921	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating	1353	preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
922	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput	1354	scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
923	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle	1355	scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
924	shade term_name title transparent transparent_all tripleclickwords	1356	secondaryScreen secondaryScroll shade skipBuiltinGlyphs skipScroll
		1357	term_name title transient_for transparent tripleclickwords urgentOnBell
925	utmpInhibit visualBell	1358	utmpInhibit visualBell
926		1359
927	=cut	1360	=cut
928		1361
929	sub resource($$;$) {	1362	sub resource($$;$) {
930	my ($self, $name) = (shift, shift);	1363	my ($self, $name) = (shift, shift);
931	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);	1364	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
932	&urxvt::term::_resource	1365	goto &urxvt::term::_resource
933	}	1366	}
934		1367
935	=item $value = $term->x_resource ($pattern)	1368	=item $value = $term->x_resource ($pattern)
936		1369
937	Returns the X-Resource for the given pattern, excluding the program or	1370	Returns the X-Resource for the given pattern, excluding the program or
…		…
962		1395
963	=item ($row, $col) = $term->selection_beg ([$row, $col])	1396	=item ($row, $col) = $term->selection_beg ([$row, $col])
964		1397
965	=item ($row, $col) = $term->selection_end ([$row, $col])	1398	=item ($row, $col) = $term->selection_end ([$row, $col])
966		1399
967	Return the current values of the selection mark, begin or end positions,	1400	Return the current values of the selection mark, begin or end positions.
968	and optionally set them to new values.	1401
		1402	When arguments are given, then the selection coordinates are set to
		1403	C<$row> and C<$col>, and the selection screen is set to the current
		1404	screen.
		1405
		1406	=item $screen = $term->selection_screen ([$screen])
		1407
		1408	Returns the current selection screen, and then optionally sets it.
969		1409
970	=item $term->selection_make ($eventtime[, $rectangular])	1410	=item $term->selection_make ($eventtime[, $rectangular])
971		1411
972	Tries to make a selection as set by C<selection_beg> and	1412	Tries to make a selection as set by C<selection_beg> and
973	C<selection_end>. If C<$rectangular> is true (default: false), a	1413	C<selection_end>. If C<$rectangular> is true (default: false), a
974	rectangular selection will be made. This is the prefered function to make	1414	rectangular selection will be made. This is the preferred function to make
975	a selection.	1415	a selection.
976		1416
977	=item $success = $term->selection_grab ($eventtime)	1417	=item $success = $term->selection_grab ($eventtime[, $clipboard])
978		1418
979	Try to request the primary selection text from the server (for example, as	1419	Try to acquire ownership of the primary (clipboard if C<$clipboard> is
		1420	true) selection from the server. The corresponding text can be set
980	set by the next method). No visual feedback will be given. This function	1421	with the next method. No visual feedback will be given. This function
981	is mostly useful from within C<on_sel_grab> hooks.	1422	is mostly useful from within C<on_sel_grab> hooks.
982		1423
983	=item $oldtext = $term->selection ([$newtext])	1424	=item $oldtext = $term->selection ([$newtext, $clipboard])
984		1425
985	Return the current selection text and optionally replace it by C<$newtext>.	1426	Return the current selection (clipboard if C<$clipboard> is true) text
		1427	and optionally replace it by C<$newtext>.
		1428
		1429	=item $term->selection_clear ([$clipboard])
		1430
		1431	Revoke ownership of the primary (clipboard if C<$clipboard> is true) selection.
986		1432
987	=item $term->overlay_simple ($x, $y, $text)	1433	=item $term->overlay_simple ($x, $y, $text)
988		1434
989	Create a simple multi-line overlay box. See the next method for details.	1435	Create a simple multi-line overlay box. See the next method for details.
990		1436
…		…
1020		1466
1021	The methods currently supported on C<urxvt::overlay> objects are:	1467	The methods currently supported on C<urxvt::overlay> objects are:
1022		1468
1023	=over 4	1469	=over 4
1024		1470
1025	=item $overlay->set ($x, $y, $text, $rend)	1471	=item $overlay->set ($x, $y, $text[, $rend])
1026		1472
1027	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts	1473	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts
1028	text in rxvt-unicode's special encoding and an array of rendition values	1474	text in rxvt-unicode's special encoding and an array of rendition values
1029	at a specific position inside the overlay.	1475	at a specific position inside the overlay.
		1476
		1477	If C<$rend> is missing, then the rendition will not be changed.
1030		1478
1031	=item $overlay->hide	1479	=item $overlay->hide
1032		1480
1033	If visible, hide the overlay, but do not destroy it.	1481	If visible, hide the overlay, but do not destroy it.
1034		1482
…		…
1104		1552
1105	Normally its not a good idea to use this function, as programs might be	1553	Normally its not a good idea to use this function, as programs might be
1106	confused by changes in cursor position or scrolling. Its useful inside a	1554	confused by changes in cursor position or scrolling. Its useful inside a
1107	C<on_add_lines> hook, though.	1555	C<on_add_lines> hook, though.
1108		1556
		1557	=item $term->scr_change_screen ($screen)
		1558
		1559	Switch to given screen - 0 primary, 1 secondary.
		1560
1109	=item $term->cmd_parse ($octets)	1561	=item $term->cmd_parse ($octets)
1110		1562
1111	Similar to C<scr_add_lines>, but the argument must be in the	1563	Similar to C<scr_add_lines>, but the argument must be in the
1112	locale-specific encoding of the terminal and can contain command sequences	1564	locale-specific encoding of the terminal and can contain command sequences
1113	(escape codes) that will be interpreted.	1565	(escape codes) that will be interpreted.
1114		1566
1115	=item $term->tt_write ($octets)	1567	=item $term->tt_write ($octets)
1116		1568
1117	Write the octets given in C<$data> to the tty (i.e. as program input). To	1569	Write the octets given in C<$octets> to the tty (i.e. as program input). To
1118	pass characters instead of octets, you should convert your strings first	1570	pass characters instead of octets, you should convert your strings first
1119	to the locale-specific encoding using C<< $term->locale_encode >>.	1571	to the locale-specific encoding using C<< $term->locale_encode >>.
		1572
		1573	=item $term->tt_paste ($octets)
		1574
		1575	Write the octets given in C<$octets> to the tty as a paste, converting NL to
		1576	CR and bracketing the data with control sequences if bracketed paste mode
		1577	is set.
1120		1578
1121	=item $old_events = $term->pty_ev_events ([$new_events])	1579	=item $old_events = $term->pty_ev_events ([$new_events])
1122		1580
1123	Replaces the event mask of the pty watcher by the given event mask. Can	1581	Replaces the event mask of the pty watcher by the given event mask. Can
1124	be used to suppress input and output handling to the pty/tty. See the	1582	be used to suppress input and output handling to the pty/tty. See the
1125	description of C<< urxvt::timer->events >>. Make sure to always restore	1583	description of C<< urxvt::timer->events >>. Make sure to always restore
1126	the previous value.	1584	the previous value.
1127		1585
		1586	=item $fd = $term->pty_fd
		1587
		1588	Returns the master file descriptor for the pty in use, or C<-1> if no pty
		1589	is used.
		1590
1128	=item $windowid = $term->parent	1591	=item $windowid = $term->parent
1129		1592
1130	Return the window id of the toplevel window.	1593	Return the window id of the toplevel window.
1131		1594
1132	=item $windowid = $term->vt	1595	=item $windowid = $term->vt
1133		1596
1134	Return the window id of the terminal window.	1597	Return the window id of the terminal window.
1135		1598
		1599	=item $term->vt_emask_add ($x_event_mask)
		1600
		1601	Adds the specified events to the vt event mask. Useful e.g. when you want
		1602	to receive pointer events all the times:
		1603
		1604	$term->vt_emask_add (urxvt::PointerMotionMask);
		1605
		1606	=item $term->focus_in
		1607
		1608	=item $term->focus_out
		1609
		1610	=item $term->key_press ($state, $keycode[, $time])
		1611
		1612	=item $term->key_release ($state, $keycode[, $time])
		1613
		1614	Deliver various fake events to to terminal.
		1615
1136	=item $window_width = $term->width	1616	=item $window_width = $term->width
1137		1617
1138	=item $window_height = $term->height	1618	=item $window_height = $term->height
1139		1619
1140	=item $font_width = $term->fwidth	1620	=item $font_width = $term->fwidth
…		…
1153		1633
1154	=item $max_scrollback = $term->saveLines	1634	=item $max_scrollback = $term->saveLines
1155		1635
1156	=item $nrow_plus_saveLines = $term->total_rows	1636	=item $nrow_plus_saveLines = $term->total_rows
1157		1637
1158	=item $lines_in_scrollback = $term->nsaved	1638	=item $topmost_scrollback_row = $term->top_row
1159		1639
1160	Return various integers describing terminal characteristics.	1640	Return various integers describing terminal characteristics.
1161		1641
1162	=item $x_display = $term->display_id	1642	=item $x_display = $term->display_id
1163		1643
…		…
1170	=item $env = $term->env	1650	=item $env = $term->env
1171		1651
1172	Returns a copy of the environment in effect for the terminal as a hashref	1652	Returns a copy of the environment in effect for the terminal as a hashref
1173	similar to C<\%ENV>.	1653	similar to C<\%ENV>.
1174		1654
		1655	=item @envv = $term->envv
		1656
		1657	Returns the environment as array of strings of the form C<VAR=VALUE>.
		1658
		1659	=item @argv = $term->argv
		1660
		1661	Return the argument vector as this terminal, similar to @ARGV, but
		1662	includes the program name as first element.
		1663
1175	=cut	1664	=cut
1176		1665
1177	sub env {	1666	sub env {
1178	if (my $env = $_[0]->_env) {
1179	+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), @$env }	1667	+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), $_[0]->envv }
1180	} else {
1181	+{ %ENV }
1182	}
1183	}	1668	}
1184		1669
1185	=item $modifiermask = $term->ModLevel3Mask	1670	=item $modifiermask = $term->ModLevel3Mask
1186		1671
1187	=item $modifiermask = $term->ModMetaMask	1672	=item $modifiermask = $term->ModMetaMask
…		…
1189	=item $modifiermask = $term->ModNumLockMask	1674	=item $modifiermask = $term->ModNumLockMask
1190		1675
1191	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often	1676	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1192	AltGr), the meta key (often Alt) and the num lock key, if applicable.	1677	AltGr), the meta key (often Alt) and the num lock key, if applicable.
1193		1678
		1679	=item $screen = $term->current_screen
		1680
		1681	Returns the currently displayed screen (0 primary, 1 secondary).
		1682
		1683	=item $cursor_is_hidden = $term->hidden_cursor
		1684
		1685	Returns whether the cursor is currently hidden or not.
		1686
1194	=item $view_start = $term->view_start ([$newvalue])	1687	=item $view_start = $term->view_start ([$newvalue])
1195		1688
1196	Returns the negative row number of the topmost line. Minimum value is	1689	Returns the row number of the topmost displayed line. Maximum value is
1197	C<0>, which displays the normal terminal contents. Larger values scroll	1690	C<0>, which displays the normal terminal contents. Lower values scroll
1198	this many lines into the scrollback buffer.	1691	this many lines into the scrollback buffer.
1199		1692
1200	=item $term->want_refresh	1693	=item $term->want_refresh
1201		1694
1202	Requests a screen refresh. At the next opportunity, rxvt-unicode will	1695	Requests a screen refresh. At the next opportunity, rxvt-unicode will
…		…
1205		1698
1206	Used after changing terminal contents to display them.	1699	Used after changing terminal contents to display them.
1207		1700
1208	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])	1701	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
1209		1702
1210	Returns the text of the entire row with number C<$row_number>. Row C<0>	1703	Returns the text of the entire row with number C<$row_number>. Row C<< $term->top_row >>
1211	is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost	1704	is the topmost terminal line, row C<< $term->nrow-1 >> is the bottommost
1212	terminal line. The scrollback buffer starts at line C<-1> and extends to
1213	line C<< -$term->nsaved >>. Nothing will be returned if a nonexistent line	1705	terminal line. Nothing will be returned if a nonexistent line
1214	is requested.	1706	is requested.
1215		1707
1216	If C<$new_text> is specified, it will replace characters in the current	1708	If C<$new_text> is specified, it will replace characters in the current
1217	line, starting at column C<$start_col> (default C<0>), which is useful	1709	line, starting at column C<$start_col> (default C<0>), which is useful
1218	to replace only parts of a line. The font index in the rendition will	1710	to replace only parts of a line. The font index in the rendition will
1219	automatically be updated.	1711	automatically be updated.
1220		1712
1221	C<$text> is in a special encoding: tabs and wide characters that use more	1713	C<$text> is in a special encoding: tabs and wide characters that use more
1222	than one cell when displayed are padded with urxvt::NOCHAR characters	1714	than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
1223	(C<chr 65535>). Characters with combining characters and other characters	1715	characters. Characters with combining characters and other characters that
1224	that do not fit into the normal tetx encoding will be replaced with	1716	do not fit into the normal text encoding will be replaced with characters
1225	characters in the private use area.	1717	in the private use area.
1226		1718
1227	You have to obey this encoding when changing text. The advantage is	1719	You have to obey this encoding when changing text. The advantage is
1228	that C<substr> and similar functions work on screen cells and not on	1720	that C<substr> and similar functions work on screen cells and not on
1229	characters.	1721	characters.
1230		1722
…		…
1374	where one character corresponds to one screen cell. See	1866	where one character corresponds to one screen cell. See
1375	C<< $term->ROW_t >> for details.	1867	C<< $term->ROW_t >> for details.
1376		1868
1377	=item $string = $term->special_decode $text	1869	=item $string = $term->special_decode $text
1378		1870
1379	Converts rxvt-unicodes text reprsentation into a perl string. See	1871	Converts rxvt-unicodes text representation into a perl string. See
1380	C<< $term->ROW_t >> for details.	1872	C<< $term->ROW_t >> for details.
1381		1873
1382	=item $success = $term->grab_button ($button, $modifiermask)	1874	=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
1383		1875
		1876	=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
		1877
1384	Registers a synchronous button grab. See the XGrabButton manpage.	1878	Register/unregister a synchronous button grab. See the XGrabButton
		1879	manpage.
1385		1880
1386	=item $success = $term->grab ($eventtime[, $sync])	1881	=item $success = $term->grab ($eventtime[, $sync])
1387		1882
1388	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or	1883	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
1389	synchronous (C<$sync> is true). Also remembers the grab timestampe.	1884	synchronous (C<$sync> is true). Also remembers the grab timestamp.
1390		1885
1391	=item $term->allow_events_async	1886	=item $term->allow_events_async
1392		1887
1393	Calls XAllowEvents with AsyncBoth for the most recent grab.	1888	Calls XAllowEvents with AsyncBoth for the most recent grab.
1394		1889
…		…
1401	Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most	1896	Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
1402	recent grab.	1897	recent grab.
1403		1898
1404	=item $term->ungrab	1899	=item $term->ungrab
1405		1900
1406	Calls XUngrab for the most recent grab. Is called automatically on	1901	Calls XUngrabPointer and XUngrabKeyboard for the most recent grab. Is called automatically on
1407	evaluation errors, as it is better to lose the grab in the error case as	1902	evaluation errors, as it is better to lose the grab in the error case as
1408	the session.	1903	the session.
		1904
		1905	=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
		1906
		1907	=item $atom_name = $term->XGetAtomName ($atom)
		1908
		1909	=item @atoms = $term->XListProperties ($window)
		1910
		1911	=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
		1912
		1913	=item $term->XChangeProperty ($window, $property, $type, $format, $octets)
		1914
		1915	=item $term->XDeleteProperty ($window, $property)
		1916
		1917	=item $window = $term->DefaultRootWindow
		1918
		1919	=item $term->XReparentWindow ($window, $parent, [$x, $y])
		1920
		1921	=item $term->XMapWindow ($window)
		1922
		1923	=item $term->XUnmapWindow ($window)
		1924
		1925	=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
		1926
		1927	=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
		1928
		1929	=item $term->XChangeInput ($window, $add_events[, $del_events])
		1930
		1931	Various X or X-related functions. The C<$term> object only serves as
		1932	the source of the display, otherwise those functions map more-or-less
		1933	directly onto the X functions of the same name.
1409		1934
1410	=back	1935	=back
1411		1936
1412	=cut	1937	=cut
1413		1938
…		…
1477	my ($self, $text, $cb) = @_;	2002	my ($self, $text, $cb) = @_;
1478		2003
1479	$self->add_item ({ type => "button", text => $text, activate => $cb});	2004	$self->add_item ({ type => "button", text => $text, activate => $cb});
1480	}	2005	}
1481		2006
1482	=item $popup->add_toggle ($text, $cb, $initial_value)	2007	=item $popup->add_toggle ($text, $initial_value, $cb)
1483		2008
1484	Adds a toggle/checkbox item to the popup. Teh callback gets called	2009	Adds a toggle/checkbox item to the popup. The callback gets called
1485	whenever it gets toggled, with a boolean indicating its value as its first	2010	whenever it gets toggled, with a boolean indicating its new value as its
1486	argument.	2011	first argument.
1487		2012
1488	=cut	2013	=cut
1489		2014
1490	sub add_toggle {	2015	sub add_toggle {
1491	my ($self, $text, $cb, $value) = @_;	2016	my ($self, $text, $value, $cb) = @_;
1492		2017
1493	my $item; $item = {	2018	my $item; $item = {
1494	type => "button",	2019	type => "button",
1495	text => " $text",	2020	text => " $text",
1496	value => $value,	2021	value => $value,
…		…
1515	my $env = $self->{term}->env;	2040	my $env = $self->{term}->env;
1516	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.	2041	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1517	delete $env->{LC_ALL};	2042	delete $env->{LC_ALL};
1518	$env->{LC_CTYPE} = $self->{term}->locale;	2043	$env->{LC_CTYPE} = $self->{term}->locale;
1519		2044
1520	urxvt::term->new ($env, $self->{term}->resource ("name"),	2045	my $term = urxvt::term->new (
1521	"--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0,	2046	$env, "popup",
		2047	"--perl-lib" => "", "--perl-ext-common" => "",
		2048	"-pty-fd" => -1, "-sl" => 0,
		2049	"-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1522	"--transient-for" => $self->{term}->parent,	2050	"--transient-for" => $self->{term}->parent,
1523	"-display" => $self->{term}->display_id,	2051	"-display" => $self->{term}->display_id,
1524	"-pe" => "urxvt-popup")	2052	"-pe" => "urxvt-popup",
1525	or die "unable to create popup window\n";	2053	) or die "unable to create popup window\n";
		2054
		2055	unless (delete $term->{urxvt_popup_init_done}) {
		2056	$term->ungrab;
		2057	$term->destroy;
		2058	die "unable to initialise popup window\n";
		2059	}
1526	}	2060	}
1527		2061
1528	sub DESTROY {	2062	sub DESTROY {
1529	my ($self) = @_;	2063	my ($self) = @_;
1530		2064
1531	delete $self->{term}{_destroy}{$self};	2065	delete $self->{term}{_destroy}{$self};
1532	$self->{term}->ungrab;	2066	$self->{term}->ungrab;
1533	}	2067	}
1534		2068
1535	=back	2069	=back
		2070
		2071	=cut
		2072
		2073	package urxvt::watcher;
1536		2074
1537	=head2 The C<urxvt::timer> Class	2075	=head2 The C<urxvt::timer> Class
1538		2076
1539	This class implements timer watchers/events. Time is represented as a	2077	This class implements timer watchers/events. Time is represented as a
1540	fractional number of seconds since the epoch. Example:	2078	fractional number of seconds since the epoch. Example:
…		…
1544	->new	2082	->new
1545	->interval (1)	2083	->interval (1)
1546	->cb (sub {	2084	->cb (sub {
1547	$term->{overlay}->set (0, 0,	2085	$term->{overlay}->set (0, 0,
1548	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);	2086	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
1549	});	2087	});
1550		2088
1551	=over 4	2089	=over 4
1552		2090
1553	=item $timer = new urxvt::timer	2091	=item $timer = new urxvt::timer
1554		2092
…		…
1557		2095
1558	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })	2096	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })
1559		2097
1560	Set the callback to be called when the timer triggers.	2098	Set the callback to be called when the timer triggers.
1561		2099
1562	=item $tstamp = $timer->at
1563
1564	Return the time this watcher will fire next.
1565
1566	=item $timer = $timer->set ($tstamp)	2100	=item $timer = $timer->set ($tstamp[, $interval])
1567		2101
1568	Set the time the event is generated to $tstamp.	2102	Set the time the event is generated to $tstamp (and optionally specifies a
		2103	new $interval).
1569		2104
1570	=item $timer = $timer->interval ($interval)	2105	=item $timer = $timer->interval ($interval)
1571		2106
1572	Normally (and when C<$interval> is C<0>), the timer will automatically	2107	By default (and when C<$interval> is C<0>), the timer will automatically
1573	stop after it has fired once. If C<$interval> is non-zero, then the timer	2108	stop after it has fired once. If C<$interval> is non-zero, then the timer
1574	is automatically rescheduled at the given intervals.	2109	is automatically rescheduled at the given intervals.
1575		2110
1576	=item $timer = $timer->start	2111	=item $timer = $timer->start
1577		2112
1578	Start the timer.	2113	Start the timer.
1579		2114
1580	=item $timer = $timer->start ($tstamp)	2115	=item $timer = $timer->start ($tstamp[, $interval])
1581		2116
1582	Set the event trigger time to C<$tstamp> and start the timer.	2117	Set the event trigger time to C<$tstamp> and start the timer. Optionally
		2118	also replaces the interval.
		2119
		2120	=item $timer = $timer->after ($delay[, $interval])
		2121
		2122	Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1583		2123
1584	=item $timer = $timer->stop	2124	=item $timer = $timer->stop
1585		2125
1586	Stop the timer.	2126	Stop the timer.
1587		2127
…		…
1593		2133
1594	$term->{socket} = ...	2134	$term->{socket} = ...
1595	$term->{iow} = urxvt::iow	2135	$term->{iow} = urxvt::iow
1596	->new	2136	->new
1597	->fd (fileno $term->{socket})	2137	->fd (fileno $term->{socket})
1598	->events (urxvt::EVENT_READ)	2138	->events (urxvt::EV_READ)
1599	->start	2139	->start
1600	->cb (sub {	2140	->cb (sub {
1601	my ($iow, $revents) = @_;	2141	my ($iow, $revents) = @_;
1602	# $revents must be 1 here, no need to check	2142	# $revents must be 1 here, no need to check
1603	sysread $term->{socket}, my $buf, 8192	2143	sysread $term->{socket}, my $buf, 8192
…		…
1616	Set the callback to be called when io events are triggered. C<$reventmask>	2156	Set the callback to be called when io events are triggered. C<$reventmask>
1617	is a bitset as described in the C<events> method.	2157	is a bitset as described in the C<events> method.
1618		2158
1619	=item $iow = $iow->fd ($fd)	2159	=item $iow = $iow->fd ($fd)
1620		2160
1621	Set the filedescriptor (not handle) to watch.	2161	Set the file descriptor (not handle) to watch.
1622		2162
1623	=item $iow = $iow->events ($eventmask)	2163	=item $iow = $iow->events ($eventmask)
1624		2164
1625	Set the event mask to watch. The only allowed values are	2165	Set the event mask to watch. The only allowed values are
1626	C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed	2166	C<urxvt::EV_READ> and C<urxvt::EV_WRITE>, which might be ORed
1627	together, or C<urxvt::EVENT_NONE>.	2167	together, or C<urxvt::EV_NONE>.
1628		2168
1629	=item $iow = $iow->start	2169	=item $iow = $iow->start
1630		2170
1631	Start watching for requested events on the given handle.	2171	Start watching for requested events on the given handle.
1632		2172
1633	=item $iow = $iow->stop	2173	=item $iow = $iow->stop
1634		2174
1635	Stop watching for events on the given filehandle.	2175	Stop watching for events on the given file handle.
		2176
		2177	=back
		2178
		2179	=head2 The C<urxvt::iw> Class
		2180
		2181	This class implements idle watchers, that get called automatically when
		2182	the process is idle. They should return as fast as possible, after doing
		2183	some useful work.
		2184
		2185	=over 4
		2186
		2187	=item $iw = new urxvt::iw
		2188
		2189	Create a new idle watcher object in stopped state.
		2190
		2191	=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
		2192
		2193	Set the callback to be called when the watcher triggers.
		2194
		2195	=item $timer = $timer->start
		2196
		2197	Start the watcher.
		2198
		2199	=item $timer = $timer->stop
		2200
		2201	Stop the watcher.
		2202
		2203	=back
		2204
		2205	=head2 The C<urxvt::pw> Class
		2206
		2207	This class implements process watchers. They create an event whenever a
		2208	process exits, after which they stop automatically.
		2209
		2210	my $pid = fork;
		2211	...
		2212	$term->{pw} = urxvt::pw
		2213	->new
		2214	->start ($pid)
		2215	->cb (sub {
		2216	my ($pw, $exit_status) = @_;
		2217	...
		2218	});
		2219
		2220	=over 4
		2221
		2222	=item $pw = new urxvt::pw
		2223
		2224	Create a new process watcher in stopped state.
		2225
		2226	=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
		2227
		2228	Set the callback to be called when the timer triggers.
		2229
		2230	=item $pw = $timer->start ($pid)
		2231
		2232	Tells the watcher to start watching for process C<$pid>.
		2233
		2234	=item $pw = $pw->stop
		2235
		2236	Stop the watcher.
1636		2237
1637	=back	2238	=back
1638		2239
1639	=head1 ENVIRONMENT	2240	=head1 ENVIRONMENT
1640		2241
…		…
1649		2250
1650	=item >= 3 - script loading and management	2251	=item >= 3 - script loading and management
1651		2252
1652	=item >=10 - all called hooks	2253	=item >=10 - all called hooks
1653		2254
1654	=item >=11 - hook reutrn values	2255	=item >=11 - hook return values
1655		2256
1656	=back	2257	=back
1657		2258
1658	=head1 AUTHOR	2259	=head1 AUTHOR
1659		2260
1660	Marc Lehmann <pcg@goof.com>	2261	Marc Lehmann <schmorp@schmorp.de>
1661	http://software.schmorp.de/pkg/rxvt-unicode	2262	http://software.schmorp.de/pkg/rxvt-unicode
1662		2263
1663	=cut	2264	=cut
1664		2265
1665	1	2266	1
		2267
		2268	# vim: sw=3:

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