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Revision 1.86 by root, Thu Jan 12 05:22:47 2006 UTC vs.
Revision 1.203 by sf-exg, Fri Dec 2 09:03:43 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>
39		42
		43	Or by adding them to the resource for extensions loaded by default:
		44
		45	URxvt.perl-ext-common: default,selection-autotransform
		46
40	=over 4	47	=over 4
41		48
42	=item selection (enabled by default)	49	=item selection (enabled by default)
43		50
44	(More) intelligent selection. This extension tries to be more intelligent	51	(More) intelligent selection. This extension tries to be more intelligent
45	when the user extends selections (double-click). Right now, it tries to	52	when the user extends selections (double-click and further clicks). Right
46	select urls and complete shell-quoted arguments, which is very convenient,	53	now, it tries to select words, urls and complete shell-quoted
47	too, if your F<ls> supports C<--quoting-style=shell>.	54	arguments, which is very convenient, too, if your F<ls> supports
		55	C<--quoting-style=shell>.
48		56
		57	A double-click usually selects the word under the cursor, further clicks
		58	will enlarge the selection.
		59
		60	The selection works by trying to match a number of regexes and displaying
		61	them in increasing order of length. You can add your own regexes by
		62	specifying resources of the form:
		63
		64	URxvt.selection.pattern-0: perl-regex
		65	URxvt.selection.pattern-1: perl-regex
		66	...
		67
		68	The index number (0, 1...) must not have any holes, and each regex must
		69	contain at least one pair of capturing parentheses, which will be used for
		70	the match. For example, the following adds a regex that matches everything
		71	between two vertical bars:
		72
		73	URxvt.selection.pattern-0: \\|([^|]+)\\|
		74
		75	Another example: Programs I use often output "absolute path: " at the
		76	beginning of a line when they process multiple files. The following
		77	pattern matches the filename (note, there is a single space at the very
		78	end):
		79
		80	URxvt.selection.pattern-0: ^(/[^:]+):\
		81
		82	You can look at the source of the selection extension to see more
		83	interesting uses, such as parsing a line from beginning to end.
		84
49	It also offers the following bindable keyboard command:	85	This extension also offers following bindable keyboard commands:
50		86
51	=over 4	87	=over 4
52		88
53	=item rot13	89	=item rot13
54		90
…		…
61	=item option-popup (enabled by default)	97	=item option-popup (enabled by default)
62		98
63	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
64	runtime.	100	runtime.
65		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
66	=item selection-popup (enabled by default)	119	=item selection-popup (enabled by default)
67		120
68	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
69	text into various other formats/action (such as uri unescaping, perl	122	text into various other formats/action (such as uri unescaping, perl
70	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	};
71		143
72	=item searchable-scrollback<hotkey> (enabled by default)	144	=item searchable-scrollback<hotkey> (enabled by default)
73		145
74	Adds regex search functionality to the scrollback buffer, triggered	146	Adds regex search functionality to the scrollback buffer, triggered
75	by a hotkey (default: C<M-s>). When in search mode, normal terminal	147	by a hotkey (default: C<M-s>). While in search mode, normal terminal
76	input/output is suspended.	148	input/output is suspended and a regex is displayed at the bottom of the
		149	screen.
77		150
78	C</> starts an incremental regex search, C<n> searches further, C<p> or	151	Inputting characters appends them to the regex and continues incremental
79	C<N> jump to the previous match, C<G> jumps to the bottom and clears the	152	search. C<BackSpace> removes a character from the regex, C<Up> and C<Down>
80	history, C<enter> leaves search mode at the current position and C<escape>	153	search upwards/downwards in the scrollback buffer, C<End> jumps to the
81	returns to the original position.	154	bottom. C<Escape> leaves search mode and returns to the point where search
		155	was started, while C<Enter> or C<Return> stay at the current position and
		156	additionally stores the first match in the current line into the primary
		157	selection if the C<Shift> modifier is active.
82		158
83	=item digital-clock	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.
84		162
85	Displays a digital clock using the built-in overlay.	163	See L<perlre> for more info about perl regular expression syntax.
86		164
87	=item mark-urls	165	=item readline (enabled by default)
88		166
		167	A support package that tries to make editing with readline easier. At
		168	the moment, it reacts to clicking shift-left mouse button by trying to
		169	move the text cursor to this position. It does so by generating as many
		170	cursor-left or cursor-right keypresses as required (this only works
		171	for programs that correctly support wide characters).
		172
		173	To avoid too many false positives, this is only done when:
		174
		175	=over 4
		176
		177	=item - the tty is in ICANON state.
		178
		179	=item - the text cursor is visible.
		180
		181	=item - the primary screen is currently being displayed.
		182
		183	=item - the mouse is on the same (multi-row-) line as the text cursor.
		184
		185	=back
		186
		187	The normal selection mechanism isn't disabled, so quick successive clicks
		188	might interfere with selection creation in harmless ways.
		189
		190	=item selection-autotransform
		191
		192	This selection allows you to do automatic transforms on a selection
		193	whenever a selection is made.
		194
		195	It works by specifying perl snippets (most useful is a single C<s///>
		196	operator) that modify C<$_> as resources:
		197
		198	URxvt.selection-autotransform.0: transform
		199	URxvt.selection-autotransform.1: transform
		200	...
		201
		202	For example, the following will transform selections of the form
		203	C<filename:number>, often seen in compiler messages, into C<vi +$filename
		204	$word>:
		205
		206	URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
		207
		208	And this example matches the same,but replaces it with vi-commands you can
		209	paste directly into your (vi :) editor:
		210
		211	URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
		212
		213	Of course, this can be modified to suit your needs and your editor :)
		214
		215	To expand the example above to typical perl error messages ("XXX at
		216	FILENAME line YYY."), you need a slightly more elaborate solution:
		217
		218	URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
		219	URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
		220
		221	The first line tells the selection code to treat the unchanging part of
		222	every error message as a selection pattern, and the second line transforms
		223	the message into vi commands to load the file.
		224
		225	=item tabbed
		226
		227	This transforms the terminal into a tabbar with additional terminals, that
		228	is, it implements what is commonly referred to as "tabbed terminal". The topmost line
		229	displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
		230	button per tab.
		231
		232	Clicking a button will activate that tab. Pressing B<Shift-Left> and
		233	B<Shift-Right> will switch to the tab left or right of the current one,
		234	while B<Shift-Down> creates a new tab.
		235
		236	The tabbar itself can be configured similarly to a normal terminal, but
		237	with a resource class of C<URxvt.tabbed>. In addition, it supports the
		238	following four resources (shown with defaults):
		239
		240	URxvt.tabbed.tabbar-fg: <colour-index, default 3>
		241	URxvt.tabbed.tabbar-bg: <colour-index, default 0>
		242	URxvt.tabbed.tab-fg: <colour-index, default 0>
		243	URxvt.tabbed.tab-bg: <colour-index, default 1>
		244
		245	See I<COLOR AND GRAPHICS> in the @@RXVT_NAME@@(1) manpage for valid
		246	indices.
		247
		248	=item matcher
		249
89	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
90	make them clickable. When middle-clicked, the program specified in the	251	matching a certain pattern and make it clickable. When clicked with the
91	resource C<urlLauncher> (default C<x-www-browser>) will be started.	252	mouse button specified in the C<matcher.button> resource (default 2, or
		253	middle), the program specified in the C<matcher.launcher> resource
		254	(default, the C<urlLauncher> resource, C<sensible-browser>) will be started
		255	with the matched text as first argument. The default configuration is
		256	suitable for matching URLs and launching a web browser, like the
		257	former "mark-urls" extension.
		258
		259	The default pattern to match URLs can be overridden with the
		260	C<matcher.pattern.0> resource, and additional patterns can be specified
		261	with numbered patterns, in a manner similar to the "selection" extension.
		262	The launcher can also be overridden on a per-pattern basis.
		263
		264	It is possible to activate the most recently seen match or a list of matches
		265	from the keyboard. Simply bind a keysym to "perl:matcher:last" or
		266	"perl:matcher:list" as seen in the example below.
		267
		268	Example configuration:
		269
		270	URxvt.perl-ext: default,matcher
		271	URxvt.urlLauncher: sensible-browser
		272	URxvt.keysym.C-Delete: perl:matcher:last
		273	URxvt.keysym.M-Delete: perl:matcher:list
		274	URxvt.matcher.button: 1
		275	URxvt.matcher.pattern.1: \\bwww\\.[\\w-]+\\.[\\w./?&@#-]*[\\w/-]
		276	URxvt.matcher.pattern.2: \\B(/\\S+?):(\\d+)(?=:|$)
		277	URxvt.matcher.launcher.2: gvim +$2 $1
		278
		279	=item xim-onthespot
		280
		281	This (experimental) perl extension implements OnTheSpot editing. It does
		282	not work perfectly, and some input methods don't seem to work well with
		283	OnTheSpot editing in general, but it seems to work at least for SCIM and
		284	kinput2.
		285
		286	You enable it by specifying this extension and a preedit style of
		287	C<OnTheSpot>, i.e.:
		288
		289	@@RXVT_NAME@@ -pt OnTheSpot -pe xim-onthespot
		290
		291	=item kuake<hotkey>
		292
		293	A very primitive quake-console-like extension. It was inspired by a
		294	description of how the programs C<kuake> and C<yakuake> work: Whenever the
		295	user presses a global accelerator key (by default C<F10>), the terminal
		296	will show or hide itself. Another press of the accelerator key will hide
		297	or show it again.
		298
		299	Initially, the window will not be shown when using this extension.
		300
		301	This is useful if you need a single terminal that is not using any desktop
		302	space most of the time but is quickly available at the press of a key.
		303
		304	The accelerator key is grabbed regardless of any modifiers, so this
		305	extension will actually grab a physical key just for this function.
		306
		307	If you want a quake-like animation, tell your window manager to do so
		308	(fvwm can do it).
		309
		310	=item overlay-osc
		311
		312	This extension implements some OSC commands to display timed popups on the
		313	screen - useful for status displays from within scripts. You have to read
		314	the sources for more info.
92		315
93	=item block-graphics-to-ascii	316	=item block-graphics-to-ascii
94		317
95	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
96	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
97	similar-looking ascii character.	320	similar-looking ascii character.
		321
		322	=item digital-clock
		323
		324	Displays a digital clock using the built-in overlay.
		325
		326	=item remote-clipboard
		327
		328	Somewhat of a misnomer, this extension adds two menu entries to the
		329	selection popup that allows one to run external commands to store the
		330	selection somewhere and fetch it again.
		331
		332	We use it to implement a "distributed selection mechanism", which just
		333	means that one command uploads the file to a remote server, and another
		334	reads it.
		335
		336	The commands can be set using the C<URxvt.remote-selection.store> and
		337	C<URxvt.remote-selection.fetch> resources. The first should read the
		338	selection to store from STDIN (always in UTF-8), the second should provide
		339	the selection data on STDOUT (also in UTF-8).
		340
		341	The defaults (which are likely useless to you) use rsh and cat:
		342
		343	URxvt.remote-selection.store: rsh ruth 'cat >/tmp/distributed-selection'
		344	URxvt.remote-selection.fetch: rsh ruth 'cat /tmp/distributed-selection'
		345
		346	=item selection-pastebin
		347
		348	This is a little rarely useful extension that uploads the selection as
		349	textfile to a remote site (or does other things). (The implementation is
		350	not currently secure for use in a multiuser environment as it writes to
		351	F</tmp> directly.).
		352
		353	It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
		354	i.e.
		355
		356	URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
		357
		358	Pressing this combination runs a command with C<%> replaced by the name of
		359	the textfile. This command can be set via a resource:
		360
		361	URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
		362
		363	And the default is likely not useful to anybody but the few people around
		364	here :)
		365
		366	The name of the textfile is the hex encoded md5 sum of the selection, so
		367	the same content should lead to the same filename.
		368
		369	After a successful upload the selection will be replaced by the text given
		370	in the C<selection-pastebin-url> resource (again, the % is the placeholder
		371	for the filename):
		372
		373	URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
		374
		375	I<Note to xrdb users:> xrdb uses the C preprocessor, which might interpret
		376	the double C</> characters as comment start. Use C<\057\057> instead,
		377	which works regardless of whether xrdb is used to parse the resource file
		378	or not.
		379
		380	=item macosx-clipboard and macosx-clipboard-native
		381
		382	These two modules implement an extended clipboard for Mac OS X. They are
		383	used like this:
		384
		385	URxvt.perl-ext-common: default,macosx-clipboard
		386	URxvt.keysym.M-c: perl:macosx-clipboard:copy
		387	URxvt.keysym.M-v: perl:macosx-clipboard:paste
		388
		389	The difference between them is that the native variant requires a
		390	perl from apple's devkit or so, and C<macosx-clipboard> requires the
		391	C<Mac::Pasteboard> module, works with other perls, has fewer bugs, is
		392	simpler etc. etc.
98		393
99	=item example-refresh-hooks	394	=item example-refresh-hooks
100		395
101	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
102	window. Illustrates overwriting the refresh callbacks to create your own	397	window. Illustrates overwriting the refresh callbacks to create your own
103	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"
104		412
105	=back	413	=back
106		414
107	=head1 API DOCUMENTATION	415	=head1 API DOCUMENTATION
108		416
…		…
124		432
125	=over 4	433	=over 4
126		434
127	=item $text	435	=item $text
128		436
129	Rxvt-unicodes special way of encoding text, where one "unicode" character	437	Rxvt-unicode's special way of encoding text, where one "unicode" character
130	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.
131		439
132	=item $string	440	=item $string
133		441
134	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
…		…
138	=item $octets	446	=item $octets
139		447
140	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
141	locale-specific way.	449	locale-specific way.
142		450
		451	=item $keysym
		452
		453	an integer that is a valid X11 keysym code. You can convert a string
		454	into a keysym and viceversa by using C<XStringToKeysym> and
		455	C<XKeysymToString>.
		456
143	=back	457	=back
144		458
145	=head2 Extension Objects	459	=head2 Extension Objects
146		460
147	Very perl extension is a perl class. A separate perl object is created	461	Every perl extension is a perl class. A separate perl object is created
148	for each terminal and each extension and passed as the first parameter to	462	for each terminal, and each terminal has its own set of extension objects,
149	hooks. So extensions can use their C<$self> object without having to think	463	which are passed as the first parameter to hooks. So extensions can use
150	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
151	begin with an underscore character C<_>: these are reserved for internal	466	that begin with an underscore character C<_>: these are reserved for
152	use.	467	internal use.
153		468
154	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
155	C<urxvt::term> class on this object.	470	C<urxvt::term> class on this object.
156		471
157	It has the following methods and data members:	472	It has the following methods and data members:
…		…
178	=head2 Hooks	493	=head2 Hooks
179		494
180	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
181	called whenever the relevant event happens.	496	called whenever the relevant event happens.
182		497
183	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
184	the in the C<Extension Objects> section.	499	the in the C<Extension Objects> section.
185		500
186	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
187	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
188	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.
189		504
190	I<< When in doubt, return a false value (preferably C<()>). >>	505	I<< When in doubt, return a false value (preferably C<()>). >>
191		506
192	=over 4	507	=over 4
193		508
194	=item on_init $term	509	=item on_init $term
195		510
196	Called after a new terminal object has been initialized, but before	511	Called after a new terminal object has been initialized, but before
197	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
198	call or deliver senseless data, as terminal size and other characteristics	513	call or deliver senseless data, as terminal size and other characteristics
199	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
200	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).
201		527
202	=item on_reset $term	528	=item on_reset $term
203		529
204	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
205	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
206	variables.	532	variables.
207		533
208	=item on_start $term	534	=item on_child_start $term, $pid
209		535
210	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.
211	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>.
212		542
213	=item on_sel_make $term, $eventtime	543	=item on_sel_make $term, $eventtime
214		544
215	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
216	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
…		…
223		553
224	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
225	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
226	by calling C<< $term->selection >>.	556	by calling C<< $term->selection >>.
227		557
228	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.
229		559
230	=item on_sel_extend $term	560	=item on_sel_extend $term
231		561
232	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
233	click) and is either supposed to return false (normal operation), or	563	click) and is either supposed to return false (normal operation), or
234	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
235	processing. This can happen multiple times, as long as the callback	565	processing. This can happen multiple times, as long as the callback
236	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
237	supposed to enlarge the selection more and more, if possible.	567	supposed to enlarge the selection more and more, if possible.
238		568
239	See the F<selection> example extension.	569	See the F<selection> example extension.
240		570
241	=item on_view_change $term, $offset	571	=item on_view_change $term, $offset
242		572
243	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
244	scrolls. Offset C<0> means display the normal terminal, positive values	574	scrolls. Offset C<0> means display the normal terminal, positive values
245	show this many lines of scrollback.	575	show this many lines of scrollback.
246		576
247	=item on_scroll_back $term, $lines, $saved	577	=item on_scroll_back $term, $lines, $saved
248		578
…		…
252		582
253	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,	583	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
254	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total	584	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
255	number of lines that will be in the scrollback buffer.	585	number of lines that will be in the scrollback buffer.
256		586
257	=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, $resp
258		598
259	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =	599	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
260	operating system command) is processed. Cursor position and other state	600	operating system command) is processed. Cursor position and other state
261	information is up-to-date when this happens. For interoperability, the	601	information is up-to-date when this happens. For interoperability, the
262	string should start with the extension name and a colon, to distinguish	602	string should start with the extension name (sans -osc) and a semicolon,
263	it from commands for other extensions, and this might be enforced in the	603	to distinguish it from commands for other extensions, and this might be
264	future.	604	enforced in the future.
		605
		606	For example, C<overlay-osc> uses this:
		607
		608	sub on_osc_seq_perl {
		609	my ($self, $osc, $resp) = @_;
		610
		611	return unless $osc =~ s/^overlay;//;
		612
		613	... process remaining $osc string
		614	}
265		615
266	Be careful not ever to trust (in a security sense) the data you receive,	616	Be careful not ever to trust (in a security sense) the data you receive,
267	as its source can not easily be controleld (e-mail content, messages from	617	as its source can not easily be controlled (e-mail content, messages from
268	other users on the same system etc.).	618	other users on the same system etc.).
		619
		620	For responses, C<$resp> contains the end-of-args separator used by the
		621	sender.
269		622
270	=item on_add_lines $term, $string	623	=item on_add_lines $term, $string
271		624
272	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
273	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
…		…
278	=item on_tt_write $term, $octets	631	=item on_tt_write $term, $octets
279		632
280	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
281	suppress or filter tty input.	634	suppress or filter tty input.
282		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
283	=item on_line_update $term, $row	643	=item on_line_update $term, $row
284		644
285	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
286	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
287	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,
…		…
294	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
295	you cannot just toggle rendition bits, but only set them.	655	you cannot just toggle rendition bits, but only set them.
296		656
297	=item on_refresh_begin $term	657	=item on_refresh_begin $term
298		658
299	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
300	or similar effects by modify terminal contents in refresh_begin, and	660	similar effects by modifying the terminal contents in refresh_begin, and
301	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
302	code is run after this hook, and takes precedence.	662	code is run after this hook, and takes precedence.
303		663
304	=item on_refresh_end $term	664	=item on_refresh_end $term
305		665
306	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>.
307		667
308	=item on_keyboard_command $term, $string	668	=item on_user_command $term, $string
309		669
310	Called whenever the user presses a key combination that has a	670	Called whenever a user-configured event is being activated (e.g. via
311	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>
312	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.
		689
		690	=item on_x_event $term, $event
		691
		692	Called on every X event received on the vt window (and possibly other
		693	windows). Should only be used as a last resort. Most event structure
		694	members are not passed.
		695
		696	=item on_root_event $term, $event
		697
		698	Like C<on_x_event>, but is called for events on the root window.
313		699
314	=item on_focus_in $term	700	=item on_focus_in $term
315		701
316	Called whenever the window gets the keyboard focus, before rxvt-unicode	702	Called whenever the window gets the keyboard focus, before rxvt-unicode
317	does focus in processing.	703	does focus in processing.
318		704
319	=item on_focus_out $term	705	=item on_focus_out $term
320		706
321	Called wheneever the window loses keyboard focus, before rxvt-unicode does	707	Called whenever the window loses keyboard focus, before rxvt-unicode does
322	focus out processing.	708	focus out processing.
323		709
		710	=item on_configure_notify $term, $event
		711
		712	=item on_property_notify $term, $event
		713
324	=item on_key_press $term, $event, $keysym, $octets	714	=item on_key_press $term, $event, $keysym, $octets
325		715
326	=item on_key_release $term, $event, $keysym	716	=item on_key_release $term, $event, $keysym
327		717
328	=item on_button_press $term, $event	718	=item on_button_press $term, $event
…		…
333		723
334	=item on_map_notify $term, $event	724	=item on_map_notify $term, $event
335		725
336	=item on_unmap_notify $term, $event	726	=item on_unmap_notify $term, $event
337		727
338	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
339	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.
340		730
341	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
342	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
343	and column under the mouse cursor.	733	(real, not screen-based) row and column under the mouse cursor.
344		734
345	C<on_key_press> additionally receives the string rxvt-unicode would	735	C<on_key_press> additionally receives the string rxvt-unicode would
346	output, if any, in locale-specific encoding.	736	output, if any, in locale-specific encoding.
347		737
348	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.
349		752
350	=back	753	=back
351		754
352	=cut	755	=cut
353		756
…		…
359	use Scalar::Util ();	762	use Scalar::Util ();
360	use List::Util ();	763	use List::Util ();
361		764
362	our $VERSION = 1;	765	our $VERSION = 1;
363	our $TERM;	766	our $TERM;
		767	our @TERM_INIT;
		768	our @TERM_EXT;
364	our @HOOKNAME;	769	our @HOOKNAME;
365	our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;	770	our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
366	our %OPTION;	771	our %OPTION;
367		772
368	our $LIBDIR;	773	our $LIBDIR;
369	our $RESNAME;	774	our $RESNAME;
370	our $RESCLASS;	775	our $RESCLASS;
371	our $RXVTNAME;	776	our $RXVTNAME;
372		777
		778	our $NOCHAR = chr 0xffff;
		779
373	=head2 Variables in the C<urxvt> Package	780	=head2 Variables in the C<urxvt> Package
374		781
375	=over 4	782	=over 4
376		783
377	=item $urxvt::LIBDIR	784	=item $urxvt::LIBDIR
…		…
390	=item $urxvt::TERM	797	=item $urxvt::TERM
391		798
392	The current terminal. This variable stores the current C<urxvt::term>	799	The current terminal. This variable stores the current C<urxvt::term>
393	object, whenever a callback/hook is executing.	800	object, whenever a callback/hook is executing.
394		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
395	=back	818	=back
396		819
397	=head2 Functions in the C<urxvt> Package	820	=head2 Functions in the C<urxvt> Package
398		821
399	=over 4	822	=over 4
400		823
401	=item urxvt::fatal $errormessage	824	=item urxvt::fatal $errormessage
402		825
403	Fatally aborts execution with the given error message. Avoid at all	826	Fatally aborts execution with the given error message (which should
404	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
405	starts up.	828	is acceptable (and useful) is in the init hook, where it prevents the
		829	terminal from starting up.
406		830
407	=item urxvt::warn $string	831	=item urxvt::warn $string
408		832
409	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
410	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
411	that calls this function.	835	that calls this function.
412		836
413	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
414	correct place, e.g. on stderr of the connecting urxvtc client.	838	correct place, e.g. on stderr of the connecting urxvtc client.
415		839
416	Messages have a size limit of 1023 bytes currently.	840	Messages have a size limit of 1023 bytes currently.
417		841
418	=item $is_safe = urxvt::safe	842	=item @terms = urxvt::termlist
419		843
420	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
421	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
422	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).
423		848
424	=item $time = urxvt::NOW	849	=item $time = urxvt::NOW
425		850
426	Returns the "current time" (as per the event loop).	851	Returns the "current time" (as per the event loop).
427		852
428	=item urxvt::CurrentTime	853	=item urxvt::CurrentTime
429		854
430	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,	855	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
431	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,	856	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
432	Button4Mask, Button5Mask, AnyModifier	857	Button4Mask, Button5Mask, AnyModifier
		858
		859	=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
		860	ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
		861	PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
		862	Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
		863	KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
		864	ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
		865	FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
		866
		867	=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
		868	EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
		869	GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
		870	UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
		871	ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
		872	CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
		873	SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
433		874
434	Various constants for use in X calls and event processing.	875	Various constants for use in X calls and event processing.
435		876
436	=back	877	=back
437		878
…		…
454		895
455	=item $rend = urxvt::OVERLAY_RSTYLE	896	=item $rend = urxvt::OVERLAY_RSTYLE
456		897
457	Return the rendition mask used for overlays by default.	898	Return the rendition mask used for overlays by default.
458		899
459	=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
460		902
461	Return the bit that enabled bold, italic, blink, reverse-video and	903	Return the bit that enabled bold, italic, blink, reverse-video and
462	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
463	the bitset.	905	the bitset.
464		906
…		…
470		912
471	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour	913	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
472		914
473	=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour	915	=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
474		916
		917	=item $rend = urxvt::SET_COLOR $rend, $new_fg, $new_bg
		918
475	Replace the foreground/background colour in the rendition mask with the	919	Replace the foreground/background colour in the rendition mask with the
476	specified one.	920	specified one.
477		921
478	=item $value = urxvt::GET_CUSTOM $rend	922	=item $value = urxvt::GET_CUSTOM $rend
479		923
…		…
488	=back	932	=back
489		933
490	=cut	934	=cut
491		935
492	BEGIN {	936	BEGIN {
493	urxvt->bootstrap;
494
495	# overwrite perl's warn	937	# overwrite perl's warn
496	*CORE::GLOBAL::warn = sub {	938	*CORE::GLOBAL::warn = sub {
497	my $msg = join "", @_;	939	my $msg = join "", @_;
498	$msg .= "\n"	940	$msg .= "\n"
499	unless $msg =~ /\n$/;	941	unless $msg =~ /\n$/;
500	urxvt::warn ($msg);	942	urxvt::warn ($msg);
501	};	943	};
502
503	# %ENV is the original startup environment
504	delete $ENV{IFS};
505	delete $ENV{CDPATH};
506	delete $ENV{BASH_ENV};
507	$ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
508	}	944	}
509		945
510	my @hook_count;	946	no warnings 'utf8';
		947
511	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};	948	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
512		949
513	sub verbose {	950	sub verbose {
514	my ($level, $msg) = @_;	951	my ($level, $msg) = @_;
515	warn "$msg\n" if $level <= $verbosity;	952	warn "$msg\n" if $level <= $verbosity;
516	}	953	}
517		954
518	my $extension_pkg = "extension0000";
519	my %extension_pkg;	955	my %extension_pkg;
520		956
521	# load a single script into its own package, once only	957	# load a single script into its own package, once only
522	sub extension_package($) {	958	sub extension_package($) {
523	my ($path) = @_;	959	my ($path) = @_;
524		960
525	$extension_pkg{$path} ||= do {	961	$extension_pkg{$path} ||= do {
526	my $pkg = "urxvt::" . ($extension_pkg++);	962	$path =~ /([^\/\\]+)$/;
		963	my $pkg = $1;
		964	$pkg =~ s/[^[:word:]]/_/g;
		965	$pkg = "urxvt::ext::$pkg";
527		966
528	verbose 3, "loading extension '$path' into package '$pkg'";	967	verbose 3, "loading extension '$path' into package '$pkg'";
529		968
530	open my $fh, "<:raw", $path	969	open my $fh, "<:raw", $path
531	or die "$path: $!";	970	or die "$path: $!";
532		971
533	my $source = untaint	972	my $source =
534	"package $pkg; use strict; use utf8;\n"	973	"package $pkg; use strict; use utf8; no warnings 'utf8';\n"
535	. "use base urxvt::term::extension::;\n"
536	. "#line 1 \"$path\"\n{\n"	974	. "#line 1 \"$path\"\n{\n"
537	. (do { local $/; <$fh> })	975	. (do { local $/; <$fh> })
538	. "\n};\n1";	976	. "\n};\n1";
539		977
540	eval $source	978	eval $source
…		…
550	sub invoke {	988	sub invoke {
551	local $TERM = shift;	989	local $TERM = shift;
552	my $htype = shift;	990	my $htype = shift;
553		991
554	if ($htype == 0) { # INIT	992	if ($htype == 0) { # INIT
555	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");	993	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$ENV{HOME}/.urxvt/ext", "$LIBDIR/perl");
556		994
557	my %ext_arg;	995	my %ext_arg;
558		996
		997	{
		998	my @init = @TERM_INIT;
		999	@TERM_INIT = ();
		1000	$_->($TERM) for @init;
		1001	my @pkg = @TERM_EXT;
		1002	@TERM_EXT = ();
		1003	$TERM->register_package ($_) for @pkg;
		1004	}
		1005
559	for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {	1006	for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
560	if ($_ eq "default") {	1007	if ($_ eq "default") {
561	$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback);	1008	$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
562	} elsif (/^-(.*)$/) {	1009	} elsif (/^-(.*)$/) {
563	delete $ext_arg{$1};	1010	delete $ext_arg{$1};
564	} elsif (/^([^<]+)<(.*)>$/) {	1011	} elsif (/^([^<]+)<(.*)>$/) {
565	push @{ $ext_arg{$1} }, $2;	1012	push @{ $ext_arg{$1} }, $2;
566	} else {	1013	} else {
567	$ext_arg{$_} ||= [];	1014	$ext_arg{$_} ||= [];
568	}	1015	}
569	}	1016	}
570		1017
571	while (my ($ext, $argv) = each %ext_arg) {	1018	for my $ext (sort keys %ext_arg) {
572	my @files = grep -f $_, map "$_/$ext", @dirs;	1019	my @files = grep -f $_, map "$_/$ext", @dirs;
573		1020
574	if (@files) {	1021	if (@files) {
575	$TERM->register_package (extension_package $files[0], $argv);	1022	$TERM->register_package (extension_package $files[0], $ext_arg{$ext});
576	} else {	1023	} else {
577	warn "perl extension '$ext' not found in perl library search path\n";	1024	warn "perl extension '$ext' not found in perl library search path\n";
578	}	1025	}
579	}	1026	}
580		1027
…		…
586		1033
587	if (my $cb = $TERM->{_hook}[$htype]) {	1034	if (my $cb = $TERM->{_hook}[$htype]) {
588	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"	1035	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
589	if $verbosity >= 10;	1036	if $verbosity >= 10;
590		1037
591	keys %$cb;	1038	for my $pkg (keys %$cb) {
592
593	while (my ($pkg, $cb) = each %$cb) {
594	$retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) }	1039	my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg}, @_) };
595	and last;	1040	$retval ||= $retval_;
596		1041
597	if ($@) {	1042	if ($@) {
598	$TERM->ungrab; # better to lose the grab than the session	1043	$TERM->ungrab; # better to lose the grab than the session
599	warn $@;	1044	warn $@;
600	}	1045	}
…		…
603	verbose 11, "$HOOKNAME[$htype] returning <$retval>"	1048	verbose 11, "$HOOKNAME[$htype] returning <$retval>"
604	if $verbosity >= 11;	1049	if $verbosity >= 11;
605	}	1050	}
606		1051
607	if ($htype == 1) { # DESTROY	1052	if ($htype == 1) { # DESTROY
608	if (my $hook = delete $TERM->{_hook}) {
609	for my $htype (0..$#$hook) {
610	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
611	or set_should_invoke $htype, 0;
612	}
613	}
614
615	# clear package objects	1053	# clear package objects
616	%$_ = () for values %{ $TERM->{_pkg} };	1054	%$_ = () for values %{ $TERM->{_pkg} };
617		1055
618	# clear package	1056	# clear package
619	%$TERM = ();	1057	%$TERM = ();
620	}	1058	}
621		1059
622	$retval	1060	$retval
623	}	1061	}
624		1062
625	sub exec_async(@) {	1063	sub SET_COLOR($$$) {
626	my $pid = fork;	1064	SET_BGCOLOR (SET_FGCOLOR ($_[0], $_[1]), $_[2])
		1065	}
627		1066
628	return	1067	sub rend2mask {
629	if !defined $pid or $pid;	1068	no strict 'refs';
630		1069	my ($str, $mask) = (@_, 0);
631	%ENV = %{ $TERM->env };	1070	my %color = ( fg => undef, bg => undef );
632		1071	my @failed;
633	exec @_;	1072	for my $spec ( split /\s+/, $str ) {
634	_exit 255;	1073	if ( $spec =~ /^([fb]g)[_:-]?(\d+)/i ) {
		1074	$color{lc($1)} = $2;
		1075	} else {
		1076	my $neg = $spec =~ s/^[-^]//;
		1077	unless ( exists &{"RS_$spec"} ) {
		1078	push @failed, $spec;
		1079	next;
		1080	}
		1081	my $cur = &{"RS_$spec"};
		1082	if ( $neg ) {
		1083	$mask &= ~$cur;
		1084	} else {
		1085	$mask |= $cur;
		1086	}
		1087	}
		1088	}
		1089	($mask, @color{qw(fg bg)}, \@failed)
635	}	1090	}
636		1091
637	# urxvt::term::extension	1092	# urxvt::term::extension
638		1093
639	package urxvt::term::extension;	1094	package urxvt::term::extension;
…		…
645	while (my ($name, $cb) = each %hook) {	1100	while (my ($name, $cb) = each %hook) {
646	my $htype = $HOOKTYPE{uc $name};	1101	my $htype = $HOOKTYPE{uc $name};
647	defined $htype	1102	defined $htype
648	or Carp::croak "unsupported hook type '$name'";	1103	or Carp::croak "unsupported hook type '$name'";
649		1104
		1105	$self->set_should_invoke ($htype, +1)
650	unless (exists $self->{term}{_hook}[$htype]{$pkg}) {	1106	unless exists $self->{term}{_hook}[$htype]{$pkg};
651	$hook_count[$htype]++
652	or urxvt::set_should_invoke $htype, 1;
653	}
654		1107
655	$self->{term}{_hook}[$htype]{$pkg} = $cb;	1108	$self->{term}{_hook}[$htype]{$pkg} = $cb;
656	}	1109	}
657	}	1110	}
658		1111
…		…
663	for my $name (@hook) {	1116	for my $name (@hook) {
664	my $htype = $HOOKTYPE{uc $name};	1117	my $htype = $HOOKTYPE{uc $name};
665	defined $htype	1118	defined $htype
666	or Carp::croak "unsupported hook type '$name'";	1119	or Carp::croak "unsupported hook type '$name'";
667		1120
		1121	$self->set_should_invoke ($htype, -1)
668	if (delete $self->{term}{_hook}[$htype]{$pkg}) {	1122	if delete $self->{term}{_hook}[$htype]{$pkg};
669	--$hook_count[$htype]
670	or urxvt::set_should_invoke $htype, 0;
671	}
672	}	1123	}
673	}	1124	}
674		1125
675	our $AUTOLOAD;	1126	our $AUTOLOAD;
676		1127
…		…
714	is that you cannot use blocking APIs, but the non-blocking variant should	1165	is that you cannot use blocking APIs, but the non-blocking variant should
715	work.	1166	work.
716		1167
717	=cut	1168	=cut
718		1169
719	our $VERSION = 1;	1170	our $VERSION = '5.23';
720		1171
721	$INC{"urxvt/anyevent.pm"} = 1; # mark us as there	1172	$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
722	push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];	1173	push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
723		1174
724	sub timer {	1175	sub timer {
…		…
726		1177
727	my $cb = $arg{cb};	1178	my $cb = $arg{cb};
728		1179
729	urxvt::timer	1180	urxvt::timer
730	->new	1181	->new
731	->start (urxvt::NOW + $arg{after})	1182	->after ($arg{after}, $arg{interval})
732	->cb (sub {	1183	->cb ($arg{interval} ? $cb : sub {
733	$_[0]->stop; # need to cancel manually	1184	$_[0]->stop; # need to cancel manually
734	$cb->();	1185	$cb->();
735	})	1186	})
736	}	1187	}
737		1188
738	sub io {	1189	sub io {
739	my ($class, %arg) = @_;	1190	my ($class, %arg) = @_;
740		1191
741	my $cb = $arg{cb};	1192	my $cb = $arg{cb};
		1193	my $fd = fileno $arg{fh};
		1194	defined $fd or $fd = $arg{fh};
742		1195
743	bless [$arg{fh}, urxvt::iow	1196	bless [$arg{fh}, urxvt::iow
744	->new	1197	->new
745	->fd (fileno $arg{fh})	1198	->fd ($fd)
746	->events (($arg{poll} =~ /r/ ? 1 : 0)	1199	->events (($arg{poll} =~ /r/ ? 1 : 0)
747	| ($arg{poll} =~ /w/ ? 2 : 0))	1200	| ($arg{poll} =~ /w/ ? 2 : 0))
748	->start	1201	->start
749	->cb (sub {	1202	->cb ($cb)
750	$cb->(($_[1] & 1 ? 'r' : '')
751	. ($_[1] & 2 ? 'w' : ''));
752	})],
753	urxvt::anyevent::	1203	], urxvt::anyevent::
		1204	}
		1205
		1206	sub idle {
		1207	my ($class, %arg) = @_;
		1208
		1209	my $cb = $arg{cb};
		1210
		1211	urxvt::iw
		1212	->new
		1213	->start
		1214	->cb ($cb)
		1215	}
		1216
		1217	sub child {
		1218	my ($class, %arg) = @_;
		1219
		1220	my $cb = $arg{cb};
		1221
		1222	urxvt::pw
		1223	->new
		1224	->start ($arg{pid})
		1225	->cb (sub {
		1226	$_[0]->stop; # need to cancel manually
		1227	$cb->($_[0]->rpid, $_[0]->rstatus);
		1228	})
754	}	1229	}
755		1230
756	sub DESTROY {	1231	sub DESTROY {
757	$_[0][1]->stop;	1232	$_[0][1]->stop;
758	}	1233	}
759		1234
760	sub condvar {	1235	# only needed for AnyEvent < 6 compatibility
761	bless \my $flag, urxvt::anyevent::condvar::	1236	sub one_event {
762	}
763
764	sub urxvt::anyevent::condvar::broadcast {
765	${$_[0]}++;
766	}
767
768	sub urxvt::anyevent::condvar::wait {
769	unless (${$_[0]}) {
770	Carp::croak "AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API";	1237	Carp::croak "AnyEvent->one_event blocking wait unsupported in urxvt, use a non-blocking API";
771	}
772	}	1238	}
773		1239
774	package urxvt::term;	1240	package urxvt::term;
775		1241
776	=head2 The C<urxvt::term> Class	1242	=head2 The C<urxvt::term> Class
…		…
781		1247
782	# find on_xxx subs in the package and register them	1248	# find on_xxx subs in the package and register them
783	# as hooks	1249	# as hooks
784	sub register_package {	1250	sub register_package {
785	my ($self, $pkg, $argv) = @_;	1251	my ($self, $pkg, $argv) = @_;
		1252
		1253	no strict 'refs';
		1254
		1255	urxvt::verbose 6, "register package $pkg to $self";
		1256
		1257	@{"$pkg\::ISA"} = urxvt::term::extension::;
786		1258
787	my $proxy = bless {	1259	my $proxy = bless {
788	_pkg => $pkg,	1260	_pkg => $pkg,
789	argv => $argv,	1261	argv => $argv,
790	}, $pkg;	1262	}, $pkg;
…		…
806	hash which defines the environment of the new terminal.	1278	hash which defines the environment of the new terminal.
807		1279
808	Croaks (and probably outputs an error message) if the new instance	1280	Croaks (and probably outputs an error message) if the new instance
809	couldn't be created. Returns C<undef> if the new instance didn't	1281	couldn't be created. Returns C<undef> if the new instance didn't
810	initialise perl, and the terminal object otherwise. The C<init> and	1282	initialise perl, and the terminal object otherwise. The C<init> and
811	C<start> hooks will be called during this call.	1283	C<start> hooks will be called before this call returns, and are free to
		1284	refer to global data (which is race free).
812		1285
813	=cut	1286	=cut
814		1287
815	sub new {	1288	sub new {
816	my ($class, $env, @args) = @_;	1289	my ($class, $env, @args) = @_;
817		1290
		1291	$env or Carp::croak "environment hash missing in call to urxvt::term->new";
		1292	@args or Carp::croak "name argument missing in call to urxvt::term->new";
		1293
818	_new ([ map "$_=$env->{$_}", keys %$env ], @args);	1294	_new ([ map "$_=$env->{$_}", keys %$env ], \@args);
819	}	1295	}
820		1296
821	=item $term->destroy	1297	=item $term->destroy
822		1298
823	Destroy the terminal object (close the window, free resources	1299	Destroy the terminal object (close the window, free resources
824	etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event	1300	etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
825	watchers (timers, io watchers) are still active.	1301	watchers (timers, io watchers) are still active.
826		1302
		1303	=item $term->exec_async ($cmd[, @args])
		1304
		1305	Works like the combination of the C<fork>/C<exec> builtins, which executes
		1306	("starts") programs in the background. This function takes care of setting
		1307	the user environment before exec'ing the command (e.g. C<PATH>) and should
		1308	be preferred over explicit calls to C<exec> or C<system>.
		1309
		1310	Returns the pid of the subprocess or C<undef> on error.
		1311
		1312	=cut
		1313
		1314	sub exec_async {
		1315	my $self = shift;
		1316
		1317	my $pid = fork;
		1318
		1319	return $pid
		1320	if !defined $pid or $pid;
		1321
		1322	%ENV = %{ $self->env };
		1323
		1324	exec @_;
		1325	urxvt::_exit 255;
		1326	}
		1327
827	=item $isset = $term->option ($optval[, $set])	1328	=item $isset = $term->option ($optval[, $set])
828		1329
829	Returns true if the option specified by C<$optval> is enabled, and	1330	Returns true if the option specified by C<$optval> is enabled, and
830	optionally change it. All option values are stored by name in the hash	1331	optionally change it. All option values are stored by name in the hash
831	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.	1332	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
832		1333
833	Here is a a likely non-exhaustive list of option names, please see the	1334	Here is a likely non-exhaustive list of option names, please see the
834	source file F</src/optinc.h> to see the actual list:	1335	source file F</src/optinc.h> to see the actual list:
835		1336
836	borderLess console cursorBlink cursorUnderline hold iconic insecure	1337	borderLess buffered console cursorBlink cursorUnderline hold iconic
837	intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage	1338	insecure intensityStyles iso14755 iso14755_52 jumpScroll loginShell
		1339	mapAlert meta8 mouseWheelScrollPage override_redirect pastableTabs
838	pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating	1340	pointerBlank reverseVideo scrollBar scrollBar_floating scrollBar_right
839	scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer	1341	scrollTtyKeypress scrollTtyOutput scrollWithBuffer secondaryScreen
840	secondaryScreen secondaryScroll skipBuiltinGlyphs transparent	1342	secondaryScroll skipBuiltinGlyphs skipScroll transparent tripleclickwords
841	tripleclickwords utmpInhibit visualBell	1343	urgentOnBell utmpInhibit visualBell
842		1344
843	=item $value = $term->resource ($name[, $newval])	1345	=item $value = $term->resource ($name[, $newval])
844		1346
845	Returns the current resource value associated with a given name and	1347	Returns the current resource value associated with a given name and
846	optionally sets a new value. Setting values is most useful in the C<init>	1348	optionally sets a new value. Setting values is most useful in the C<init>
…		…
855	likely change).	1357	likely change).
856		1358
857	Please note that resource strings will currently only be freed when the	1359	Please note that resource strings will currently only be freed when the
858	terminal is destroyed, so changing options frequently will eat memory.	1360	terminal is destroyed, so changing options frequently will eat memory.
859		1361
860	Here is a a likely non-exhaustive list of resource names, not all of which	1362	Here is a likely non-exhaustive list of resource names, not all of which
861	are supported in every build, please see the source file F</src/rsinc.h>	1363	are supported in every build, please see the source file F</src/rsinc.h>
862	to see the actual list:	1364	to see the actual list:
863		1365
864	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont	1366	answerbackstring backgroundPixmap backspace_key blendtype blurradius
865	borderLess color cursorBlink cursorUnderline cutchars delete_key	1367	boldFont boldItalicFont borderLess buffered chdir color cursorBlink
866	display_name embed ext_bwidth fade font geometry hold iconName	1368	cursorUnderline cutchars delete_key depth display_name embed ext_bwidth
867	imFont imLocale inputMethod insecure int_bwidth intensityStyles	1369	fade font geometry hold iconName iconfile imFont imLocale inputMethod
		1370	insecure int_bwidth intensityStyles iso14755 iso14755_52 italicFont
868	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier	1371	jumpScroll letterSpace lineSpace loginShell mapAlert meta8 modifier
869	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2	1372	mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
870	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd	1373	perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
871	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating	1374	preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
872	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput	1375	scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
873	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle	1376	scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
874	shade term_name title transparent transparent_all tripleclickwords	1377	secondaryScreen secondaryScroll shade skipBuiltinGlyphs skipScroll
		1378	term_name title transient_for transparent tripleclickwords urgentOnBell
875	utmpInhibit visualBell	1379	utmpInhibit visualBell
876		1380
877	=cut	1381	=cut
878		1382
879	sub resource($$;$) {	1383	sub resource($$;$) {
880	my ($self, $name) = (shift, shift);	1384	my ($self, $name) = (shift, shift);
881	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);	1385	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
882	&urxvt::term::_resource	1386	goto &urxvt::term::_resource
883	}	1387	}
884		1388
885	=item $value = $term->x_resource ($pattern)	1389	=item $value = $term->x_resource ($pattern)
886		1390
887	Returns the X-Resource for the given pattern, excluding the program or	1391	Returns the X-Resource for the given pattern, excluding the program or
…		…
891		1395
892	This method should only be called during the C<on_start> hook, as there is	1396	This method should only be called during the C<on_start> hook, as there is
893	only one resource database per display, and later invocations might return	1397	only one resource database per display, and later invocations might return
894	the wrong resources.	1398	the wrong resources.
895		1399
896	=item $success = $term->parse_keysym ($keysym_spec, $command_string)	1400	=item $success = $term->parse_keysym ($key, $octets)
897		1401
898	Adds a keymap translation exactly as specified via a resource. See the	1402	Adds a key binding exactly as specified via a resource. See the
899	C<keysym> resource in the @@RXVT_NAME@@(1) manpage.	1403	C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
		1404
		1405	=item $term->register_command ($keysym, $modifiermask, $string)
		1406
		1407	Adds a key binding. This is a lower level api compared to
		1408	C<parse_keysym>, as it expects a parsed key description, and can be
		1409	used only inside either the C<on_init> hook, to add a binding, or the
		1410	C<on_register_command> hook, to modify a parsed binding.
900		1411
901	=item $rend = $term->rstyle ([$new_rstyle])	1412	=item $rend = $term->rstyle ([$new_rstyle])
902		1413
903	Return and optionally change the current rendition. Text that is output by	1414	Return and optionally change the current rendition. Text that is output by
904	the terminal application will use this style.	1415	the terminal application will use this style.
…		…
912		1423
913	=item ($row, $col) = $term->selection_beg ([$row, $col])	1424	=item ($row, $col) = $term->selection_beg ([$row, $col])
914		1425
915	=item ($row, $col) = $term->selection_end ([$row, $col])	1426	=item ($row, $col) = $term->selection_end ([$row, $col])
916		1427
917	Return the current values of the selection mark, begin or end positions,	1428	Return the current values of the selection mark, begin or end positions.
918	and optionally set them to new values.	1429
		1430	When arguments are given, then the selection coordinates are set to
		1431	C<$row> and C<$col>, and the selection screen is set to the current
		1432	screen.
		1433
		1434	=item $screen = $term->selection_screen ([$screen])
		1435
		1436	Returns the current selection screen, and then optionally sets it.
919		1437
920	=item $term->selection_make ($eventtime[, $rectangular])	1438	=item $term->selection_make ($eventtime[, $rectangular])
921		1439
922	Tries to make a selection as set by C<selection_beg> and	1440	Tries to make a selection as set by C<selection_beg> and
923	C<selection_end>. If C<$rectangular> is true (default: false), a	1441	C<selection_end>. If C<$rectangular> is true (default: false), a
924	rectangular selection will be made. This is the prefered function to make	1442	rectangular selection will be made. This is the preferred function to make
925	a selection.	1443	a selection.
926		1444
927	=item $success = $term->selection_grab ($eventtime)	1445	=item $success = $term->selection_grab ($eventtime[, $clipboard])
928		1446
929	Try to request the primary selection text from the server (for example, as	1447	Try to acquire ownership of the primary (clipboard if C<$clipboard> is
		1448	true) selection from the server. The corresponding text can be set
930	set by the next method). No visual feedback will be given. This function	1449	with the next method. No visual feedback will be given. This function
931	is mostly useful from within C<on_sel_grab> hooks.	1450	is mostly useful from within C<on_sel_grab> hooks.
932		1451
933	=item $oldtext = $term->selection ([$newtext])	1452	=item $oldtext = $term->selection ([$newtext, $clipboard])
934		1453
935	Return the current selection text and optionally replace it by C<$newtext>.	1454	Return the current selection (clipboard if C<$clipboard> is true) text
		1455	and optionally replace it by C<$newtext>.
		1456
		1457	=item $term->selection_clear ([$clipboard])
		1458
		1459	Revoke ownership of the primary (clipboard if C<$clipboard> is true) selection.
936		1460
937	=item $term->overlay_simple ($x, $y, $text)	1461	=item $term->overlay_simple ($x, $y, $text)
938		1462
939	Create a simple multi-line overlay box. See the next method for details.	1463	Create a simple multi-line overlay box. See the next method for details.
940		1464
…		…
970		1494
971	The methods currently supported on C<urxvt::overlay> objects are:	1495	The methods currently supported on C<urxvt::overlay> objects are:
972		1496
973	=over 4	1497	=over 4
974		1498
975	=item $overlay->set ($x, $y, $text, $rend)	1499	=item $overlay->set ($x, $y, $text[, $rend])
976		1500
977	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts	1501	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts
978	text in rxvt-unicode's special encoding and an array of rendition values	1502	text in rxvt-unicode's special encoding and an array of rendition values
979	at a specific position inside the overlay.	1503	at a specific position inside the overlay.
		1504
		1505	If C<$rend> is missing, then the rendition will not be changed.
980		1506
981	=item $overlay->hide	1507	=item $overlay->hide
982		1508
983	If visible, hide the overlay, but do not destroy it.	1509	If visible, hide the overlay, but do not destroy it.
984		1510
…		…
1054		1580
1055	Normally its not a good idea to use this function, as programs might be	1581	Normally its not a good idea to use this function, as programs might be
1056	confused by changes in cursor position or scrolling. Its useful inside a	1582	confused by changes in cursor position or scrolling. Its useful inside a
1057	C<on_add_lines> hook, though.	1583	C<on_add_lines> hook, though.
1058		1584
		1585	=item $term->scr_change_screen ($screen)
		1586
		1587	Switch to given screen - 0 primary, 1 secondary.
		1588
1059	=item $term->cmd_parse ($octets)	1589	=item $term->cmd_parse ($octets)
1060		1590
1061	Similar to C<scr_add_lines>, but the argument must be in the	1591	Similar to C<scr_add_lines>, but the argument must be in the
1062	locale-specific encoding of the terminal and can contain command sequences	1592	locale-specific encoding of the terminal and can contain command sequences
1063	(escape codes) that will be interpreted.	1593	(escape codes) that will be interpreted.
1064		1594
1065	=item $term->tt_write ($octets)	1595	=item $term->tt_write ($octets)
1066		1596
1067	Write the octets given in C<$data> to the tty (i.e. as program input). To	1597	Write the octets given in C<$octets> to the tty (i.e. as program input). To
1068	pass characters instead of octets, you should convert your strings first	1598	pass characters instead of octets, you should convert your strings first
1069	to the locale-specific encoding using C<< $term->locale_encode >>.	1599	to the locale-specific encoding using C<< $term->locale_encode >>.
		1600
		1601	=item $term->tt_paste ($octets)
		1602
		1603	Write the octets given in C<$octets> to the tty as a paste, converting NL to
		1604	CR and bracketing the data with control sequences if bracketed paste mode
		1605	is set.
1070		1606
1071	=item $old_events = $term->pty_ev_events ([$new_events])	1607	=item $old_events = $term->pty_ev_events ([$new_events])
1072		1608
1073	Replaces the event mask of the pty watcher by the given event mask. Can	1609	Replaces the event mask of the pty watcher by the given event mask. Can
1074	be used to suppress input and output handling to the pty/tty. See the	1610	be used to suppress input and output handling to the pty/tty. See the
1075	description of C<< urxvt::timer->events >>. Make sure to always restore	1611	description of C<< urxvt::timer->events >>. Make sure to always restore
1076	the previous value.	1612	the previous value.
1077		1613
		1614	=item $fd = $term->pty_fd
		1615
		1616	Returns the master file descriptor for the pty in use, or C<-1> if no pty
		1617	is used.
		1618
1078	=item $windowid = $term->parent	1619	=item $windowid = $term->parent
1079		1620
1080	Return the window id of the toplevel window.	1621	Return the window id of the toplevel window.
1081		1622
1082	=item $windowid = $term->vt	1623	=item $windowid = $term->vt
1083		1624
1084	Return the window id of the terminal window.	1625	Return the window id of the terminal window.
1085		1626
		1627	=item $term->vt_emask_add ($x_event_mask)
		1628
		1629	Adds the specified events to the vt event mask. Useful e.g. when you want
		1630	to receive pointer events all the times:
		1631
		1632	$term->vt_emask_add (urxvt::PointerMotionMask);
		1633
		1634	=item $term->focus_in
		1635
		1636	=item $term->focus_out
		1637
		1638	=item $term->key_press ($state, $keycode[, $time])
		1639
		1640	=item $term->key_release ($state, $keycode[, $time])
		1641
		1642	Deliver various fake events to to terminal.
		1643
1086	=item $window_width = $term->width	1644	=item $window_width = $term->width
1087		1645
1088	=item $window_height = $term->height	1646	=item $window_height = $term->height
1089		1647
1090	=item $font_width = $term->fwidth	1648	=item $font_width = $term->fwidth
…		…
1103		1661
1104	=item $max_scrollback = $term->saveLines	1662	=item $max_scrollback = $term->saveLines
1105		1663
1106	=item $nrow_plus_saveLines = $term->total_rows	1664	=item $nrow_plus_saveLines = $term->total_rows
1107		1665
1108	=item $lines_in_scrollback = $term->nsaved	1666	=item $topmost_scrollback_row = $term->top_row
1109		1667
1110	Return various integers describing terminal characteristics.	1668	Return various integers describing terminal characteristics.
1111		1669
1112	=item $x_display = $term->display_id	1670	=item $x_display = $term->display_id
1113		1671
…		…
1120	=item $env = $term->env	1678	=item $env = $term->env
1121		1679
1122	Returns a copy of the environment in effect for the terminal as a hashref	1680	Returns a copy of the environment in effect for the terminal as a hashref
1123	similar to C<\%ENV>.	1681	similar to C<\%ENV>.
1124		1682
		1683	=item @envv = $term->envv
		1684
		1685	Returns the environment as array of strings of the form C<VAR=VALUE>.
		1686
		1687	=item @argv = $term->argv
		1688
		1689	Return the argument vector as this terminal, similar to @ARGV, but
		1690	includes the program name as first element.
		1691
1125	=cut	1692	=cut
1126		1693
1127	sub env {	1694	sub env {
1128	if (my $env = $_[0]->_env) {
1129	+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), @$env }	1695	+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), $_[0]->envv }
1130	} else {
1131	+{ %ENV }
1132	}
1133	}	1696	}
1134		1697
1135	=item $modifiermask = $term->ModLevel3Mask	1698	=item $modifiermask = $term->ModLevel3Mask
1136		1699
1137	=item $modifiermask = $term->ModMetaMask	1700	=item $modifiermask = $term->ModMetaMask
…		…
1139	=item $modifiermask = $term->ModNumLockMask	1702	=item $modifiermask = $term->ModNumLockMask
1140		1703
1141	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often	1704	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1142	AltGr), the meta key (often Alt) and the num lock key, if applicable.	1705	AltGr), the meta key (often Alt) and the num lock key, if applicable.
1143		1706
		1707	=item $screen = $term->current_screen
		1708
		1709	Returns the currently displayed screen (0 primary, 1 secondary).
		1710
		1711	=item $cursor_is_hidden = $term->hidden_cursor
		1712
		1713	Returns whether the cursor is currently hidden or not.
		1714
1144	=item $view_start = $term->view_start ([$newvalue])	1715	=item $view_start = $term->view_start ([$newvalue])
1145		1716
1146	Returns the negative row number of the topmost line. Minimum value is	1717	Returns the row number of the topmost displayed line. Maximum value is
1147	C<0>, which displays the normal terminal contents. Larger values scroll	1718	C<0>, which displays the normal terminal contents. Lower values scroll
1148	this many lines into the scrollback buffer.	1719	this many lines into the scrollback buffer.
1149		1720
1150	=item $term->want_refresh	1721	=item $term->want_refresh
1151		1722
1152	Requests a screen refresh. At the next opportunity, rxvt-unicode will	1723	Requests a screen refresh. At the next opportunity, rxvt-unicode will
…		…
1155		1726
1156	Used after changing terminal contents to display them.	1727	Used after changing terminal contents to display them.
1157		1728
1158	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])	1729	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
1159		1730
1160	Returns the text of the entire row with number C<$row_number>. Row C<0>	1731	Returns the text of the entire row with number C<$row_number>. Row C<< $term->top_row >>
1161	is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost	1732	is the topmost terminal line, row C<< $term->nrow-1 >> is the bottommost
1162	terminal line. The scrollback buffer starts at line C<-1> and extends to
1163	line C<< -$term->nsaved >>. Nothing will be returned if a nonexistent line	1733	terminal line. Nothing will be returned if a nonexistent line
1164	is requested.	1734	is requested.
1165		1735
1166	If C<$new_text> is specified, it will replace characters in the current	1736	If C<$new_text> is specified, it will replace characters in the current
1167	line, starting at column C<$start_col> (default C<0>), which is useful	1737	line, starting at column C<$start_col> (default C<0>), which is useful
1168	to replace only parts of a line. The font index in the rendition will	1738	to replace only parts of a line. The font index in the rendition will
1169	automatically be updated.	1739	automatically be updated.
1170		1740
1171	C<$text> is in a special encoding: tabs and wide characters that use more	1741	C<$text> is in a special encoding: tabs and wide characters that use more
1172	than one cell when displayed are padded with urxvt::NOCHAR characters	1742	than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
1173	(C<chr 65535>). Characters with combining characters and other characters	1743	characters. Characters with combining characters and other characters that
1174	that do not fit into the normal tetx encoding will be replaced with	1744	do not fit into the normal text encoding will be replaced with characters
1175	characters in the private use area.	1745	in the private use area.
1176		1746
1177	You have to obey this encoding when changing text. The advantage is	1747	You have to obey this encoding when changing text. The advantage is
1178	that C<substr> and similar functions work on screen cells and not on	1748	that C<substr> and similar functions work on screen cells and not on
1179	characters.	1749	characters.
1180		1750
…		…
1324	where one character corresponds to one screen cell. See	1894	where one character corresponds to one screen cell. See
1325	C<< $term->ROW_t >> for details.	1895	C<< $term->ROW_t >> for details.
1326		1896
1327	=item $string = $term->special_decode $text	1897	=item $string = $term->special_decode $text
1328		1898
1329	Converts rxvt-unicodes text reprsentation into a perl string. See	1899	Converts rxvt-unicodes text representation into a perl string. See
1330	C<< $term->ROW_t >> for details.	1900	C<< $term->ROW_t >> for details.
1331		1901
1332	=item $success = $term->grab_button ($button, $modifiermask)	1902	=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
1333		1903
		1904	=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
		1905
1334	Registers a synchronous button grab. See the XGrabButton manpage.	1906	Register/unregister a synchronous button grab. See the XGrabButton
		1907	manpage.
1335		1908
1336	=item $success = $term->grab ($eventtime[, $sync])	1909	=item $success = $term->grab ($eventtime[, $sync])
1337		1910
1338	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or	1911	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
1339	synchronous (C<$sync> is true). Also remembers the grab timestampe.	1912	synchronous (C<$sync> is true). Also remembers the grab timestamp.
1340		1913
1341	=item $term->allow_events_async	1914	=item $term->allow_events_async
1342		1915
1343	Calls XAllowEvents with AsyncBoth for the most recent grab.	1916	Calls XAllowEvents with AsyncBoth for the most recent grab.
1344		1917
…		…
1351	Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most	1924	Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
1352	recent grab.	1925	recent grab.
1353		1926
1354	=item $term->ungrab	1927	=item $term->ungrab
1355		1928
1356	Calls XUngrab for the most recent grab. Is called automatically on	1929	Calls XUngrabPointer and XUngrabKeyboard for the most recent grab. Is called automatically on
1357	evaluation errors, as it is better to lose the grab in the error case as	1930	evaluation errors, as it is better to lose the grab in the error case as
1358	the session.	1931	the session.
		1932
		1933	=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
		1934
		1935	=item $atom_name = $term->XGetAtomName ($atom)
		1936
		1937	=item @atoms = $term->XListProperties ($window)
		1938
		1939	=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
		1940
		1941	=item $term->XChangeProperty ($window, $property, $type, $format, $octets)
		1942
		1943	=item $term->XDeleteProperty ($window, $property)
		1944
		1945	=item $window = $term->DefaultRootWindow
		1946
		1947	=item $term->XReparentWindow ($window, $parent, [$x, $y])
		1948
		1949	=item $term->XMapWindow ($window)
		1950
		1951	=item $term->XUnmapWindow ($window)
		1952
		1953	=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
		1954
		1955	=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
		1956
		1957	=item $term->XChangeInput ($window, $add_events[, $del_events])
		1958
		1959	=item $keysym = $term->XStringToKeysym ($string)
		1960
		1961	=item $string = $term->XKeysymToString ($keysym)
		1962
		1963	Various X or X-related functions. The C<$term> object only serves as
		1964	the source of the display, otherwise those functions map more-or-less
		1965	directly onto the X functions of the same name.
1359		1966
1360	=back	1967	=back
1361		1968
1362	=cut	1969	=cut
1363		1970
…		…
1427	my ($self, $text, $cb) = @_;	2034	my ($self, $text, $cb) = @_;
1428		2035
1429	$self->add_item ({ type => "button", text => $text, activate => $cb});	2036	$self->add_item ({ type => "button", text => $text, activate => $cb});
1430	}	2037	}
1431		2038
1432	=item $popup->add_toggle ($text, $cb, $initial_value)	2039	=item $popup->add_toggle ($text, $initial_value, $cb)
1433		2040
1434	Adds a toggle/checkbox item to the popup. Teh callback gets called	2041	Adds a toggle/checkbox item to the popup. The callback gets called
1435	whenever it gets toggled, with a boolean indicating its value as its first	2042	whenever it gets toggled, with a boolean indicating its new value as its
1436	argument.	2043	first argument.
1437		2044
1438	=cut	2045	=cut
1439		2046
1440	sub add_toggle {	2047	sub add_toggle {
1441	my ($self, $text, $cb, $value) = @_;	2048	my ($self, $text, $value, $cb) = @_;
1442		2049
1443	my $item; $item = {	2050	my $item; $item = {
1444	type => "button",	2051	type => "button",
1445	text => " $text",	2052	text => " $text",
1446	value => $value,	2053	value => $value,
…		…
1465	my $env = $self->{term}->env;	2072	my $env = $self->{term}->env;
1466	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.	2073	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1467	delete $env->{LC_ALL};	2074	delete $env->{LC_ALL};
1468	$env->{LC_CTYPE} = $self->{term}->locale;	2075	$env->{LC_CTYPE} = $self->{term}->locale;
1469		2076
1470	urxvt::term->new ($env, $self->{term}->resource ("name"),	2077	my $term = urxvt::term->new (
1471	"--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0,	2078	$env, "popup",
		2079	"--perl-lib" => "", "--perl-ext-common" => "",
		2080	"-pty-fd" => -1, "-sl" => 0,
		2081	"-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1472	"--transient-for" => $self->{term}->parent,	2082	"--transient-for" => $self->{term}->parent,
1473	"-display" => $self->{term}->display_id,	2083	"-display" => $self->{term}->display_id,
1474	"-pe" => "urxvt-popup")	2084	"-pe" => "urxvt-popup",
1475	or die "unable to create popup window\n";	2085	) or die "unable to create popup window\n";
		2086
		2087	unless (delete $term->{urxvt_popup_init_done}) {
		2088	$term->ungrab;
		2089	$term->destroy;
		2090	die "unable to initialise popup window\n";
		2091	}
1476	}	2092	}
1477		2093
1478	sub DESTROY {	2094	sub DESTROY {
1479	my ($self) = @_;	2095	my ($self) = @_;
1480		2096
1481	delete $self->{term}{_destroy}{$self};	2097	delete $self->{term}{_destroy}{$self};
1482	$self->{term}->ungrab;	2098	$self->{term}->ungrab;
1483	}	2099	}
1484		2100
1485	=back	2101	=back
		2102
		2103	=cut
		2104
		2105	package urxvt::watcher;
1486		2106
1487	=head2 The C<urxvt::timer> Class	2107	=head2 The C<urxvt::timer> Class
1488		2108
1489	This class implements timer watchers/events. Time is represented as a	2109	This class implements timer watchers/events. Time is represented as a
1490	fractional number of seconds since the epoch. Example:	2110	fractional number of seconds since the epoch. Example:
…		…
1494	->new	2114	->new
1495	->interval (1)	2115	->interval (1)
1496	->cb (sub {	2116	->cb (sub {
1497	$term->{overlay}->set (0, 0,	2117	$term->{overlay}->set (0, 0,
1498	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);	2118	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
1499	});	2119	});
1500		2120
1501	=over 4	2121	=over 4
1502		2122
1503	=item $timer = new urxvt::timer	2123	=item $timer = new urxvt::timer
1504		2124
…		…
1507		2127
1508	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })	2128	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })
1509		2129
1510	Set the callback to be called when the timer triggers.	2130	Set the callback to be called when the timer triggers.
1511		2131
1512	=item $tstamp = $timer->at
1513
1514	Return the time this watcher will fire next.
1515
1516	=item $timer = $timer->set ($tstamp)	2132	=item $timer = $timer->set ($tstamp[, $interval])
1517		2133
1518	Set the time the event is generated to $tstamp.	2134	Set the time the event is generated to $tstamp (and optionally specifies a
		2135	new $interval).
1519		2136
1520	=item $timer = $timer->interval ($interval)	2137	=item $timer = $timer->interval ($interval)
1521		2138
1522	Normally (and when C<$interval> is C<0>), the timer will automatically	2139	By default (and when C<$interval> is C<0>), the timer will automatically
1523	stop after it has fired once. If C<$interval> is non-zero, then the timer	2140	stop after it has fired once. If C<$interval> is non-zero, then the timer
1524	is automatically rescheduled at the given intervals.	2141	is automatically rescheduled at the given intervals.
1525		2142
1526	=item $timer = $timer->start	2143	=item $timer = $timer->start
1527		2144
1528	Start the timer.	2145	Start the timer.
1529		2146
1530	=item $timer = $timer->start ($tstamp)	2147	=item $timer = $timer->start ($tstamp[, $interval])
1531		2148
1532	Set the event trigger time to C<$tstamp> and start the timer.	2149	Set the event trigger time to C<$tstamp> and start the timer. Optionally
		2150	also replaces the interval.
		2151
		2152	=item $timer = $timer->after ($delay[, $interval])
		2153
		2154	Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1533		2155
1534	=item $timer = $timer->stop	2156	=item $timer = $timer->stop
1535		2157
1536	Stop the timer.	2158	Stop the timer.
1537		2159
…		…
1543		2165
1544	$term->{socket} = ...	2166	$term->{socket} = ...
1545	$term->{iow} = urxvt::iow	2167	$term->{iow} = urxvt::iow
1546	->new	2168	->new
1547	->fd (fileno $term->{socket})	2169	->fd (fileno $term->{socket})
1548	->events (urxvt::EVENT_READ)	2170	->events (urxvt::EV_READ)
1549	->start	2171	->start
1550	->cb (sub {	2172	->cb (sub {
1551	my ($iow, $revents) = @_;	2173	my ($iow, $revents) = @_;
1552	# $revents must be 1 here, no need to check	2174	# $revents must be 1 here, no need to check
1553	sysread $term->{socket}, my $buf, 8192	2175	sysread $term->{socket}, my $buf, 8192
…		…
1566	Set the callback to be called when io events are triggered. C<$reventmask>	2188	Set the callback to be called when io events are triggered. C<$reventmask>
1567	is a bitset as described in the C<events> method.	2189	is a bitset as described in the C<events> method.
1568		2190
1569	=item $iow = $iow->fd ($fd)	2191	=item $iow = $iow->fd ($fd)
1570		2192
1571	Set the filedescriptor (not handle) to watch.	2193	Set the file descriptor (not handle) to watch.
1572		2194
1573	=item $iow = $iow->events ($eventmask)	2195	=item $iow = $iow->events ($eventmask)
1574		2196
1575	Set the event mask to watch. The only allowed values are	2197	Set the event mask to watch. The only allowed values are
1576	C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed	2198	C<urxvt::EV_READ> and C<urxvt::EV_WRITE>, which might be ORed
1577	together, or C<urxvt::EVENT_NONE>.	2199	together, or C<urxvt::EV_NONE>.
1578		2200
1579	=item $iow = $iow->start	2201	=item $iow = $iow->start
1580		2202
1581	Start watching for requested events on the given handle.	2203	Start watching for requested events on the given handle.
1582		2204
1583	=item $iow = $iow->stop	2205	=item $iow = $iow->stop
1584		2206
1585	Stop watching for events on the given filehandle.	2207	Stop watching for events on the given file handle.
		2208
		2209	=back
		2210
		2211	=head2 The C<urxvt::iw> Class
		2212
		2213	This class implements idle watchers, that get called automatically when
		2214	the process is idle. They should return as fast as possible, after doing
		2215	some useful work.
		2216
		2217	=over 4
		2218
		2219	=item $iw = new urxvt::iw
		2220
		2221	Create a new idle watcher object in stopped state.
		2222
		2223	=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
		2224
		2225	Set the callback to be called when the watcher triggers.
		2226
		2227	=item $timer = $timer->start
		2228
		2229	Start the watcher.
		2230
		2231	=item $timer = $timer->stop
		2232
		2233	Stop the watcher.
		2234
		2235	=back
		2236
		2237	=head2 The C<urxvt::pw> Class
		2238
		2239	This class implements process watchers. They create an event whenever a
		2240	process exits, after which they stop automatically.
		2241
		2242	my $pid = fork;
		2243	...
		2244	$term->{pw} = urxvt::pw
		2245	->new
		2246	->start ($pid)
		2247	->cb (sub {
		2248	my ($pw, $exit_status) = @_;
		2249	...
		2250	});
		2251
		2252	=over 4
		2253
		2254	=item $pw = new urxvt::pw
		2255
		2256	Create a new process watcher in stopped state.
		2257
		2258	=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
		2259
		2260	Set the callback to be called when the timer triggers.
		2261
		2262	=item $pw = $timer->start ($pid)
		2263
		2264	Tells the watcher to start watching for process C<$pid>.
		2265
		2266	=item $pw = $pw->stop
		2267
		2268	Stop the watcher.
1586		2269
1587	=back	2270	=back
1588		2271
1589	=head1 ENVIRONMENT	2272	=head1 ENVIRONMENT
1590		2273
…		…
1599		2282
1600	=item >= 3 - script loading and management	2283	=item >= 3 - script loading and management
1601		2284
1602	=item >=10 - all called hooks	2285	=item >=10 - all called hooks
1603		2286
1604	=item >=11 - hook reutrn values	2287	=item >=11 - hook return values
1605		2288
1606	=back	2289	=back
1607		2290
1608	=head1 AUTHOR	2291	=head1 AUTHOR
1609		2292
1610	Marc Lehmann <pcg@goof.com>	2293	Marc Lehmann <schmorp@schmorp.de>
1611	http://software.schmorp.de/pkg/rxvt-unicode	2294	http://software.schmorp.de/pkg/rxvt-unicode
1612		2295
1613	=cut	2296	=cut
1614		2297
1615	1	2298	1
		2299
		2300	# vim: sw=3:

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