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Comparing rxvt-unicode/src/urxvt.pm (file contents):
Revision 1.74 by root, Tue Jan 10 04:26:54 2006 UTC vs.
Revision 1.139 by root, Sat Jul 1 19:04:43 2006 UTC

…		…
26	thus must be encoded as UTF-8.	26	thus must be encoded as UTF-8.
27		27
28	Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where	28	Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where
29	scripts will be shared (but not enabled) for all terminals.	29	scripts will be shared (but not enabled) for all terminals.
30		30
31	=head2 Prepackaged Extensions	31	=head1 PREPACKAGED EXTENSIONS
32		32
33	This section describes the extensiosn delivered with this version. You can	33	This section describes the extensions delivered with this release. You can
34	find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.	34	find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.
35		35
36	You can activate them like this:	36	You can activate them like this:
37		37
38	@@RXVT_NAME@@ -pe <extensionname>	38	@@RXVT_NAME@@ -pe <extensionname>
39		39
		40	Or by adding them to the resource for extensions loaded by default:
		41
		42	URxvt.perl-ext-common: default,automove-background,selection-autotransform
		43
40	=over 4	44	=over 4
41		45
42	=item selection (enabled by default)	46	=item selection (enabled by default)
43		47
44	Intelligent selection. This extension tries to be more intelligent when	48	(More) intelligent selection. This extension tries to be more intelligent
45	the user extends selections (double-click). Right now, it tries to select	49	when the user extends selections (double-click and further clicks). Right
46	urls and complete shell-quoted arguments, which is very convenient, too,	50	now, it tries to select words, urls and complete shell-quoted
47	if your F<ls> supports C<--quoting-style=shell>.	51	arguments, which is very convenient, too, if your F<ls> supports
		52	C<--quoting-style=shell>.
48		53
49	It also offers the following bindable event:	54	A double-click usually selects the word under the cursor, further clicks
		55	will enlarge the selection.
		56
		57	The selection works by trying to match a number of regexes and displaying
		58	them in increasing order of length. You can add your own regexes by
		59	specifying resources of the form:
		60
		61	URxvt.selection.pattern-0: perl-regex
		62	URxvt.selection.pattern-1: perl-regex
		63	...
		64
		65	The index number (0, 1...) must not have any holes, and each regex must
		66	contain at least one pair of capturing parentheses, which will be used for
		67	the match. For example, the followign adds a regex that matches everything
		68	between two vertical bars:
		69
		70	URxvt.selection.pattern-0: \\|([^|]+)\\|
		71
		72	Another example: Programs I use often output "absolute path: " at the
		73	beginning of a line when they process multiple files. The following
		74	pattern matches the filename (note, there is a single space at the very
		75	end):
		76
		77	URxvt.selection.pattern-0: ^(/[^:]+):\
		78
		79	You can look at the source of the selection extension to see more
		80	interesting uses, such as parsing a line from beginning to end.
		81
		82	This extension also offers following bindable keyboard commands:
50		83
51	=over 4	84	=over 4
52		85
53	=item rot13	86	=item rot13
54		87
…		…
61	=item option-popup (enabled by default)	94	=item option-popup (enabled by default)
62		95
63	Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at	96	Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at
64	runtime.	97	runtime.
65		98
		99	Other extensions can extend this popup menu by pushing a code reference
		100	onto C<@{ $term->{option_popup_hook} }>, which gets called whenever the
		101	popup is being displayed.
		102
		103	It's sole argument is the popup menu, which can be modified. It should
		104	either return nothing or a string, the initial boolean value and a code
		105	reference. The string will be used as button text and the code reference
		106	will be called when the toggle changes, with the new boolean value as
		107	first argument.
		108
		109	The following will add an entry C<myoption> that changes
		110	C<$self->{myoption}>:
		111
		112	push @{ $self->{term}{option_popup_hook} }, sub {
		113	("my option" => $myoption, sub { $self->{myoption} = $_[0] })
		114	};
		115
66	=item selection-popup (enabled by default)	116	=item selection-popup (enabled by default)
67		117
68	Binds a popup menu to Ctrl-Button3 that lets you convert the selection	118	Binds a popup menu to Ctrl-Button3 that lets you convert the selection
69	text into various other formats/action.	119	text into various other formats/action (such as uri unescaping, perl
		120	evaluation, web-browser starting etc.), depending on content.
		121
		122	Other extensions can extend this popup menu by pushing a code reference
		123	onto C<@{ $term->{selection_popup_hook} }>, which gets called whenever the
		124	popup is being displayed.
		125
		126	It's sole argument is the popup menu, which can be modified. The selection
		127	is in C<$_>, which can be used to decide wether to add something or not.
		128	It should either return nothing or a string and a code reference. The
		129	string will be used as button text and the code reference will be called
		130	when the button gets activated and should transform C<$_>.
		131
		132	The following will add an entry C<a to b> that transforms all C<a>s in
		133	the selection to C<b>s, but only if the selection currently contains any
		134	C<a>s:
		135
		136	push @{ $self->{term}{selection_popup_hook} }, sub {
		137	/a/ ? ("a to be" => sub { s/a/b/g }
		138	: ()
		139	};
70		140
71	=item searchable-scrollback<hotkey> (enabled by default)	141	=item searchable-scrollback<hotkey> (enabled by default)
72		142
73	Adds regex search functionality to the scrollback buffer, triggered	143	Adds regex search functionality to the scrollback buffer, triggered
74	by a hotkey (default: C<M-s>). When in search mode, normal terminal	144	by a hotkey (default: C<M-s>). While in search mode, normal terminal
75	input/output is suspended.	145	input/output is suspended and a regex is displayed at the bottom of the
		146	screen.
76		147
77	C</> starts an incremental regex search, C<n> searches further, C<p> or	148	Inputting characters appends them to the regex and continues incremental
78	C<N> jump to the previous match, C<G> jumps to the bottom and clears the	149	search. C<BackSpace> removes a character from the regex, C<Up> and C<Down>
79	history, C<enter> leaves search mode at the current position and C<escape>	150	search upwards/downwards in the scrollback buffer, C<End> jumps to the
80	returns to the original position.	151	bottom. C<Escape> leaves search mode and returns to the point where search
		152	was started, while C<Enter> or C<Return> stay at the current position and
		153	additionally stores the first match in the current line into the primary
		154	selection.
81		155
82	=item digital-clock	156	=item readline (enabled by default)
83		157
84	Displays a digital clock using the built-in overlay.	158	A support package that tries to make editing with readline easier. At
		159	the moment, it reacts to clicking shift-left mouse button by trying to
		160	move the text cursor to this position. It does so by generating as many
		161	cursor-left or cursor-right keypresses as required (the this only works
		162	for programs that correctly support wide characters).
		163
		164	To avoid too many false positives, this is only done when:
		165
		166	=over 4
		167
		168	=item - the tty is in ICANON state.
		169
		170	=item - the text cursor is visible.
		171
		172	=item - the primary screen is currently being displayed.
		173
		174	=item - the mouse is on the same (multi-row-) line as the text cursor.
		175
		176	=back
		177
		178	The normal selection mechanism isn't disabled, so quick successive clicks
		179	might interfere with selection creation in harmless ways.
		180
		181	=item selection-autotransform
		182
		183	This selection allows you to do automatic transforms on a selection
		184	whenever a selection is made.
		185
		186	It works by specifying perl snippets (most useful is a single C<s///>
		187	operator) that modify C<$_> as resources:
		188
		189	URxvt.selection-autotransform.0: transform
		190	URxvt.selection-autotransform.1: transform
		191	...
		192
		193	For example, the following will transform selections of the form
		194	C<filename:number>, often seen in compiler messages, into C<vi +$filename
		195	$word>:
		196
		197	URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
		198
		199	And this example matches the same,but replaces it with vi-commands you can
		200	paste directly into your (vi :) editor:
		201
		202	URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
		203
		204	Of course, this can be modified to suit your needs and your editor :)
		205
		206	To expand the example above to typical perl error messages ("XXX at
		207	FILENAME line YYY."), you need a slightly more elaborate solution:
		208
		209	URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
		210	URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
		211
		212	The first line tells the selection code to treat the unchanging part of
		213	every error message as a selection pattern, and the second line transforms
		214	the message into vi commands to load the file.
		215
		216	=item tabbed
		217
		218	This transforms the terminal into a tabbar with additional terminals, that
		219	is, it implements what is commonly refered to as "tabbed terminal". The topmost line
		220	displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
		221	button per tab.
		222
		223	Clicking a button will activate that tab. Pressing B<Shift-Left> and
		224	B<Shift-Right> will switch to the tab left or right of the current one,
		225	while B<Shift-Down> creates a new tab.
		226
		227	The tabbar itself can be configured similarly to a normal terminal, but
		228	with a resource class of C<URxvt.tabbed>. In addition, it supports the
		229	following four resources (shown with defaults):
		230
		231	URxvt.tabbed.tabbar-fg: <colour-index, default 3>
		232	URxvt.tabbed.tabbar-bg: <colour-index, default 0>
		233	URxvt.tabbed.tab-fg: <colour-index, default 0>
		234	URxvt.tabbed.tab-bg: <colour-index, default 1>
		235
		236	See I<COLOR AND GRAPHICS> in the @@RXVT_NAME@@(1) manpage for valid
		237	indices.
85		238
86	=item mark-urls	239	=item mark-urls
87		240
88	Uses per-line display filtering (C<on_line_update>) to underline urls.	241	Uses per-line display filtering (C<on_line_update>) to underline urls and
		242	make them clickable. When middle-clicked, the program specified in the
		243	resource C<urlLauncher> (default C<x-www-browser>) will be started with
		244	the URL as first argument.
		245
		246	=item xim-onthespot
		247
		248	This (experimental) perl extension implements OnTheSpot editing. It does
		249	not work perfectly, and some input methods don't seem to work well with
		250	OnTheSpot editing in general, but it seems to work at leats for SCIM and
		251	kinput2.
		252
		253	You enable it by specifying this extension and a preedit style of
		254	C<OnTheSpot>, i.e.:
		255
		256	@@RXVT_NAME@@ -pt OnTheSpot -pe xim-onthespot
		257
		258	=item automove-background
		259
		260	This is basically a one-line extension that dynamically changes the background pixmap offset
		261	to the window position, in effect creating the same effect as pseudo transparency with
		262	a custom pixmap. No scaling is supported in this mode. Exmaple:
		263
		264	@@RXVT_NAME@@ -pixmap background.xpm -pe automove-background
89		265
90	=item block-graphics-to-ascii	266	=item block-graphics-to-ascii
91		267
92	A not very useful example of filtering all text output to the terminal,	268	A not very useful example of filtering all text output to the terminal,
93	by replacing all line-drawing characters (U+2500 .. U+259F) by a	269	by replacing all line-drawing characters (U+2500 .. U+259F) by a
94	similar-looking ascii character.	270	similar-looking ascii character.
95		271
		272	=item digital-clock
		273
		274	Displays a digital clock using the built-in overlay.
		275
		276	=item remote-clipboard
		277
		278	Somewhat of a misnomer, this extension adds two menu entries to the
		279	selection popup that allows one ti run external commands to store the
		280	selection somewhere and fetch it again.
		281
		282	We use it to implement a "distributed selection mechanism", which just
		283	means that one command uploads the file to a remote server, and another
		284	reads it.
		285
		286	The commands can be set using the C<URxvt.remote-selection.store> and
		287	C<URxvt.remote-selection.fetch> resources. The first should read the
		288	selection to store from STDIN (always in UTF-8), the second should provide
		289	the selection data on STDOUT (also in UTF-8).
		290
		291	The defaults (which are likely useless to you) use rsh and cat:
		292
		293	URxvt.remote-selection.store: rsh ruth 'cat >/tmp/distributed-selection'
		294	URxvt.remote-selection.fetch: rsh ruth 'cat /tmp/distributed-selection'
		295
		296	=item selection-pastebin
		297
		298	This is a little rarely useful extension that Uploads the selection as
		299	textfile to a remote site (or does other things). (The implementation is
		300	not currently secure for use in a multiuser environment as it writes to
		301	F</tmp> directly.).
		302
		303	It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
		304	i.e.
		305
		306	URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
		307
		308	Pressing this combination runs a command with C<%> replaced by the name of
		309	the textfile. This command can be set via a resource:
		310
		311	URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
		312
		313	And the default is likely not useful to anybody but the few people around
		314	here :)
		315
		316	The name of the textfile is the hex encoded md5 sum of the selection, so
		317	the same content should lead to the same filename.
		318
		319	After a successful upload the selection will be replaced by the text given
		320	in the C<selection-pastebin-url> resource (again, the % is the placeholder
		321	for the filename):
		322
		323	URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
		324
96	=item example-refresh-hooks	325	=item example-refresh-hooks
97		326
98	Displays a very simple digital clock in the upper right corner of the	327	Displays a very simple digital clock in the upper right corner of the
99	window. Illustrates overwriting the refresh callbacks to create your own	328	window. Illustrates overwriting the refresh callbacks to create your own
100	overlays or changes.	329	overlays or changes.
101		330
102	=back	331	=back
		332
		333	=head1 API DOCUMENTATION
103		334
104	=head2 General API Considerations	335	=head2 General API Considerations
105		336
106	All objects (such as terminals, time watchers etc.) are typical	337	All objects (such as terminals, time watchers etc.) are typical
107	reference-to-hash objects. The hash can be used to store anything you	338	reference-to-hash objects. The hash can be used to store anything you
…		…
120	=over 4	351	=over 4
121		352
122	=item $text	353	=item $text
123		354
124	Rxvt-unicodes special way of encoding text, where one "unicode" character	355	Rxvt-unicodes special way of encoding text, where one "unicode" character
125	always represents one screen cell. See L<row_t> for a discussion of this format.	356	always represents one screen cell. See L<ROW_t> for a discussion of this format.
126		357
127	=item $string	358	=item $string
128		359
129	A perl text string, with an emphasis on I<text>. It can store all unicode	360	A perl text string, with an emphasis on I<text>. It can store all unicode
130	characters and is to be distinguished with text encoded in a specific	361	characters and is to be distinguished with text encoded in a specific
…		…
137		368
138	=back	369	=back
139		370
140	=head2 Extension Objects	371	=head2 Extension Objects
141		372
142	Very perl extension is a perl class. A separate perl object is created	373	Every perl extension is a perl class. A separate perl object is created
143	for each terminal and each extension and passed as the first parameter to	374	for each terminal and each extension and passed as the first parameter to
144	hooks. So extensions can use their C<$self> object without having to think	375	hooks. So extensions can use their C<$self> object without having to think
145	about other extensions, with the exception of methods and members that	376	about other extensions, with the exception of methods and members that
146	begin with an underscore character C<_>: these are reserved for internal	377	begin with an underscore character C<_>: these are reserved for internal
147	use.	378	use.
…		…
176	called whenever the relevant event happens.	407	called whenever the relevant event happens.
177		408
178	The first argument passed to them is an extension oject as described in	409	The first argument passed to them is an extension oject as described in
179	the in the C<Extension Objects> section.	410	the in the C<Extension Objects> section.
180		411
181	B<All> of these hooks must return a boolean value. If it is true, then the	412	B<All> of these hooks must return a boolean value. If any of the called
182	event counts as being I<consumed>, and the invocation of other hooks is	413	hooks returns true, then the event counts as being I<consumed>, and the
183	skipped, and the relevant action might not be carried out by the C++ code.	414	relevant action might not be carried out by the C++ code.
184		415
185	I<< When in doubt, return a false value (preferably C<()>). >>	416	I<< When in doubt, return a false value (preferably C<()>). >>
186		417
187	=over 4	418	=over 4
188		419
189	=item on_init $term	420	=item on_init $term
190		421
191	Called after a new terminal object has been initialized, but before	422	Called after a new terminal object has been initialized, but before
192	windows are created or the command gets run. Most methods are unsafe to	423	windows are created or the command gets run. Most methods are unsafe to
193	call or deliver senseless data, as terminal size and other characteristics	424	call or deliver senseless data, as terminal size and other characteristics
194	have not yet been determined. You can safely query and change resources,	425	have not yet been determined. You can safely query and change resources
195	though.	426	and options, though. For many purposes the C<on_start> hook is a better
		427	place.
		428
		429	=item on_start $term
		430
		431	Called at the very end of initialisation of a new terminal, just before
		432	trying to map (display) the toplevel and returning to the mainloop.
		433
		434	=item on_destroy $term
		435
		436	Called whenever something tries to destroy terminal, when the terminal is
		437	still fully functional (not for long, though).
196		438
197	=item on_reset $term	439	=item on_reset $term
198		440
199	Called after the screen is "reset" for any reason, such as resizing or	441	Called after the screen is "reset" for any reason, such as resizing or
200	control sequences. Here is where you can react on changes to size-related	442	control sequences. Here is where you can react on changes to size-related
201	variables.	443	variables.
202		444
203	=item on_start $term	445	=item on_child_start $term, $pid
204		446
205	Called at the very end of initialisation of a new terminal, just before	447	Called just after the child process has been C<fork>ed.
206	returning to the mainloop.	448
		449	=item on_child_exit $term, $status
		450
		451	Called just after the child process has exited. C<$status> is the status
		452	from C<waitpid>.
207		453
208	=item on_sel_make $term, $eventtime	454	=item on_sel_make $term, $eventtime
209		455
210	Called whenever a selection has been made by the user, but before the	456	Called whenever a selection has been made by the user, but before the
211	selection text is copied, so changes to the beginning, end or type of the	457	selection text is copied, so changes to the beginning, end or type of the
…		…
225	=item on_sel_extend $term	471	=item on_sel_extend $term
226		472
227	Called whenever the user tries to extend the selection (e.g. with a double	473	Called whenever the user tries to extend the selection (e.g. with a double
228	click) and is either supposed to return false (normal operation), or	474	click) and is either supposed to return false (normal operation), or
229	should extend the selection itelf and return true to suppress the built-in	475	should extend the selection itelf and return true to suppress the built-in
230	processing.	476	processing. This can happen multiple times, as long as the callback
		477	returns true, it will be called on every further click by the user and is
		478	supposed to enlarge the selection more and more, if possible.
231		479
232	See the F<selection> example extension.	480	See the F<selection> example extension.
233		481
234	=item on_view_change $term, $offset	482	=item on_view_change $term, $offset
235		483
…		…
245		493
246	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,	494	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
247	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total	495	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
248	number of lines that will be in the scrollback buffer.	496	number of lines that will be in the scrollback buffer.
249		497
		498	=item on_osc_seq $term, $op, $args
		499
		500	Called on every OSC sequence and can be used to suppress it or modify its
		501	behaviour. The default should be to return an empty list. A true value
		502	suppresses execution of the request completely. Make sure you don't get
		503	confused by recursive invocations when you output an osc sequence within
		504	this callback.
		505
		506	C<on_osc_seq_perl> should be used for new behaviour.
		507
250	=item on_osc_seq $term, $string	508	=item on_osc_seq_perl $term, $string
251		509
252	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =	510	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
253	operating system command) is processed. Cursor position and other state	511	operating system command) is processed. Cursor position and other state
254	information is up-to-date when this happens. For interoperability, the	512	information is up-to-date when this happens. For interoperability, the
255	string should start with the extension name and a colon, to distinguish	513	string should start with the extension name and a colon, to distinguish
…		…
296		554
297	=item on_refresh_end $term	555	=item on_refresh_end $term
298		556
299	Called just after the screen gets redrawn. See C<on_refresh_begin>.	557	Called just after the screen gets redrawn. See C<on_refresh_begin>.
300		558
301	=item on_keyboard_command $term, $string	559	=item on_user_command $term, $string
302		560
303	Called whenever the user presses a key combination that has a	561	Called whenever the a user-configured event is being activated (e.g. via
304	C<perl:string> action bound to it (see description of the B<keysym>	562	a C<perl:string> action bound to a key, see description of the B<keysym>
305	resource in the @@RXVT_NAME@@(1) manpage).	563	resource in the @@RXVT_NAME@@(1) manpage).
		564
		565	The event is simply the action string. This interface is assumed to change
		566	slightly in the future.
		567
		568	=item on_resize_all_windows $tern, $new_width, $new_height
		569
		570	Called just after the new window size has been calculcated, but before
		571	windows are actually being resized or hints are being set. If this hook
		572	returns TRUE, setting of the window hints is being skipped.
		573
		574	=item on_x_event $term, $event
		575
		576	Called on every X event received on the vt window (and possibly other
		577	windows). Should only be used as a last resort. Most event structure
		578	members are not passed.
306		579
307	=item on_focus_in $term	580	=item on_focus_in $term
308		581
309	Called whenever the window gets the keyboard focus, before rxvt-unicode	582	Called whenever the window gets the keyboard focus, before rxvt-unicode
310	does focus in processing.	583	does focus in processing.
…		…
312	=item on_focus_out $term	585	=item on_focus_out $term
313		586
314	Called wheneever the window loses keyboard focus, before rxvt-unicode does	587	Called wheneever the window loses keyboard focus, before rxvt-unicode does
315	focus out processing.	588	focus out processing.
316		589
		590	=item on_configure_notify $term, $event
		591
		592	=item on_property_notify $term, $event
		593
317	=item on_key_press $term, $event, $keysym, $octets	594	=item on_key_press $term, $event, $keysym, $octets
318		595
319	=item on_key_release $term, $event, $keysym	596	=item on_key_release $term, $event, $keysym
320		597
321	=item on_button_press $term, $event	598	=item on_button_press $term, $event
…		…
330		607
331	Called whenever the corresponding X event is received for the terminal If	608	Called whenever the corresponding X event is received for the terminal If
332	the hook returns true, then the even will be ignored by rxvt-unicode.	609	the hook returns true, then the even will be ignored by rxvt-unicode.
333		610
334	The event is a hash with most values as named by Xlib (see the XEvent	611	The event is a hash with most values as named by Xlib (see the XEvent
335	manpage), with the additional members C<row> and C<col>, which are the row	612	manpage), with the additional members C<row> and C<col>, which are the
336	and column under the mouse cursor.	613	(real, not screen-based) row and column under the mouse cursor.
337		614
338	C<on_key_press> additionally receives the string rxvt-unicode would	615	C<on_key_press> additionally receives the string rxvt-unicode would
339	output, if any, in locale-specific encoding.	616	output, if any, in locale-specific encoding.
340		617
341	subwindow.	618	subwindow.
342		619
343	=back	620	=item on_client_message $term, $event
344		621
345	=head2 Variables in the C<urxvt> Package	622	=item on_wm_protocols $term, $event
346		623
347	=over 4	624	=item on_wm_delete_window $term, $event
348		625
349	=item $urxvt::TERM	626	Called when various types of ClientMessage events are received (all with
350		627	format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
351	The current terminal. This variable stores the current C<urxvt::term>
352	object, whenever a callback/hook is executing.
353
354	=back
355
356	=head2 Functions in the C<urxvt> Package
357
358	=over 4
359
360	=item $term = new urxvt [arg...]
361
362	Creates a new terminal, very similar as if you had started it with
363	C<system $binfile, arg...>. Croaks (and probably outputs an error message)
364	if the new instance couldn't be created. Returns C<undef> if the new
365	instance didn't initialise perl, and the terminal object otherwise. The
366	C<init> and C<start> hooks will be called during the call.
367
368	=item urxvt::fatal $errormessage
369
370	Fatally aborts execution with the given error message. Avoid at all
371	costs! The only time this is acceptable is when the terminal process
372	starts up.
373
374	=item urxvt::warn $string
375
376	Calls C<rxvt_warn> with the given string which should not include a
377	newline. The module also overwrites the C<warn> builtin with a function
378	that calls this function.
379
380	Using this function has the advantage that its output ends up in the
381	correct place, e.g. on stderr of the connecting urxvtc client.
382
383	=item $is_safe = urxvt::safe
384
385	Returns true when it is safe to do potentially unsafe things, such as
386	evaluating perl code specified by the user. This is true when urxvt was
387	started setuid or setgid.
388
389	=item $time = urxvt::NOW
390
391	Returns the "current time" (as per the event loop).
392
393	=item urxvt::CurrentTime
394
395	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
396	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
397	Button4Mask, Button5Mask, AnyModifier
398
399	Various constants for use in X calls and event processing.
400
401	=back
402
403	=head2 RENDITION
404
405	Rendition bitsets contain information about colour, font, font styles and
406	similar information for each screen cell.
407
408	The following "macros" deal with changes in rendition sets. You should
409	never just create a bitset, you should always modify an existing one,
410	as they contain important information required for correct operation of
411	rxvt-unicode.
412
413	=over 4
414
415	=item $rend = urxvt::DEFAULT_RSTYLE
416
417	Returns the default rendition, as used when the terminal is starting up or
418	being reset. Useful as a base to start when creating renditions.
419
420	=item $rend = urxvt::OVERLAY_RSTYLE
421
422	Return the rendition mask used for overlays by default.
423
424	=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline
425
426	Return the bit that enabled bold, italic, blink, reverse-video and
427	underline, respectively. To enable such a style, just logically OR it into
428	the bitset.
429
430	=item $foreground = urxvt::GET_BASEFG $rend
431
432	=item $background = urxvt::GET_BASEBG $rend
433
434	Return the foreground/background colour index, respectively.
435
436	=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)
437
438	=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)
439
440	Replace the foreground/background colour in the rendition mask with the
441	specified one.
442
443	=item $value = urxvt::GET_CUSTOM ($rend)
444
445	Return the "custom" value: Every rendition has 5 bits for use by
446	extensions. They can be set and changed as you like and are initially
447	zero.
448
449	=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)
450
451	Change the custom value.
452		628
453	=back	629	=back
454		630
455	=cut	631	=cut
456		632
…		…
462	use Scalar::Util ();	638	use Scalar::Util ();
463	use List::Util ();	639	use List::Util ();
464		640
465	our $VERSION = 1;	641	our $VERSION = 1;
466	our $TERM;	642	our $TERM;
		643	our @TERM_INIT;
		644	our @TERM_EXT;
467	our @HOOKNAME;	645	our @HOOKNAME;
468	our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;	646	our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
469	our %OPTION;	647	our %OPTION;
470		648
471	our $LIBDIR;	649	our $LIBDIR;
472	our $RESNAME;	650	our $RESNAME;
473	our $RESCLASS;	651	our $RESCLASS;
474	our $RXVTNAME;	652	our $RXVTNAME;
475		653
		654	our $NOCHAR = chr 0xffff;
		655
		656	=head2 Variables in the C<urxvt> Package
		657
		658	=over 4
		659
		660	=item $urxvt::LIBDIR
		661
		662	The rxvt-unicode library directory, where, among other things, the perl
		663	modules and scripts are stored.
		664
		665	=item $urxvt::RESCLASS, $urxvt::RESCLASS
		666
		667	The resource class and name rxvt-unicode uses to look up X resources.
		668
		669	=item $urxvt::RXVTNAME
		670
		671	The basename of the installed binaries, usually C<urxvt>.
		672
		673	=item $urxvt::TERM
		674
		675	The current terminal. This variable stores the current C<urxvt::term>
		676	object, whenever a callback/hook is executing.
		677
		678	=item @urxvt::TERM_INIT
		679
		680	All coderefs in this array will be called as methods of the next newly
		681	created C<urxvt::term> object (during the C<on_init> phase). The array
		682	gets cleared before the codereferences that were in it are being executed,
		683	so coderefs can push themselves onto it again if they so desire.
		684
		685	This complements to the perl-eval commandline option, but gets executed
		686	first.
		687
		688	=item @urxvt::TERM_EXT
		689
		690	Works similar to C<@TERM_INIT>, but contains perl package/class names, which
		691	get registered as normal extensions after calling the hooks in C<@TERM_INIT>
		692	but before other extensions. Gets cleared just like C<@TERM_INIT>.
		693
		694	=back
		695
		696	=head2 Functions in the C<urxvt> Package
		697
		698	=over 4
		699
		700	=item urxvt::fatal $errormessage
		701
		702	Fatally aborts execution with the given error message. Avoid at all
		703	costs! The only time this is acceptable is when the terminal process
		704	starts up.
		705
		706	=item urxvt::warn $string
		707
		708	Calls C<rxvt_warn> with the given string which should not include a
		709	newline. The module also overwrites the C<warn> builtin with a function
		710	that calls this function.
		711
		712	Using this function has the advantage that its output ends up in the
		713	correct place, e.g. on stderr of the connecting urxvtc client.
		714
		715	Messages have a size limit of 1023 bytes currently.
		716
		717	=item @terms = urxvt::termlist
		718
		719	Returns all urxvt::term objects that exist in this process, regardless of
		720	wether they are started, being destroyed etc., so be careful. Only term
		721	objects that have perl extensions attached will be returned (because there
		722	is no urxvt::term objet associated with others).
		723
		724	=item $time = urxvt::NOW
		725
		726	Returns the "current time" (as per the event loop).
		727
		728	=item urxvt::CurrentTime
		729
		730	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
		731	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
		732	Button4Mask, Button5Mask, AnyModifier
		733
		734	=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
		735	ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
		736	PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
		737	Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
		738	KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
		739	ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
		740	FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
		741
		742	=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
		743	EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
		744	GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
		745	UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
		746	ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
		747	CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
		748	SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
		749
		750	Various constants for use in X calls and event processing.
		751
		752	=back
		753
		754	=head2 RENDITION
		755
		756	Rendition bitsets contain information about colour, font, font styles and
		757	similar information for each screen cell.
		758
		759	The following "macros" deal with changes in rendition sets. You should
		760	never just create a bitset, you should always modify an existing one,
		761	as they contain important information required for correct operation of
		762	rxvt-unicode.
		763
		764	=over 4
		765
		766	=item $rend = urxvt::DEFAULT_RSTYLE
		767
		768	Returns the default rendition, as used when the terminal is starting up or
		769	being reset. Useful as a base to start when creating renditions.
		770
		771	=item $rend = urxvt::OVERLAY_RSTYLE
		772
		773	Return the rendition mask used for overlays by default.
		774
		775	=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline
		776
		777	Return the bit that enabled bold, italic, blink, reverse-video and
		778	underline, respectively. To enable such a style, just logically OR it into
		779	the bitset.
		780
		781	=item $foreground = urxvt::GET_BASEFG $rend
		782
		783	=item $background = urxvt::GET_BASEBG $rend
		784
		785	Return the foreground/background colour index, respectively.
		786
		787	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
		788
		789	=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
		790
		791	=item $rend = urxvt::SET_COLOR $rend, $new_fg, $new_bg
		792
		793	Replace the foreground/background colour in the rendition mask with the
		794	specified one.
		795
		796	=item $value = urxvt::GET_CUSTOM $rend
		797
		798	Return the "custom" value: Every rendition has 5 bits for use by
		799	extensions. They can be set and changed as you like and are initially
		800	zero.
		801
		802	=item $rend = urxvt::SET_CUSTOM $rend, $new_value
		803
		804	Change the custom value.
		805
		806	=back
		807
		808	=cut
		809
476	BEGIN {	810	BEGIN {
477	urxvt->bootstrap;
478
479	# overwrite perl's warn	811	# overwrite perl's warn
480	*CORE::GLOBAL::warn = sub {	812	*CORE::GLOBAL::warn = sub {
481	my $msg = join "", @_;	813	my $msg = join "", @_;
482	$msg .= "\n"	814	$msg .= "\n"
483	unless $msg =~ /\n$/;	815	unless $msg =~ /\n$/;
484	urxvt::warn ($msg);	816	urxvt::warn ($msg);
485	};	817	};
486
487	delete $ENV{IFS};
488	delete $ENV{CDPATH};
489	delete $ENV{BASH_ENV};
490	$ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
491	}	818	}
492		819
493	my @hook_count;	820	no warnings 'utf8';
		821
494	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};	822	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
495		823
496	sub verbose {	824	sub verbose {
497	my ($level, $msg) = @_;	825	my ($level, $msg) = @_;
498	warn "$msg\n" if $level <= $verbosity;	826	warn "$msg\n" if $level <= $verbosity;
499	}	827	}
500		828
501	my $extension_pkg = "extension0000";
502	my %extension_pkg;	829	my %extension_pkg;
503		830
504	# load a single script into its own package, once only	831	# load a single script into its own package, once only
505	sub extension_package($) {	832	sub extension_package($) {
506	my ($path) = @_;	833	my ($path) = @_;
507		834
508	$extension_pkg{$path} ||= do {	835	$extension_pkg{$path} ||= do {
509	my $pkg = "urxvt::" . ($extension_pkg++);	836	$path =~ /([^\/\\]+)$/;
		837	my $pkg = $1;
		838	$pkg =~ s/[^[:word:]]/_/g;
		839	$pkg = "urxvt::ext::$pkg";
510		840
511	verbose 3, "loading extension '$path' into package '$pkg'";	841	verbose 3, "loading extension '$path' into package '$pkg'";
512		842
513	open my $fh, "<:raw", $path	843	open my $fh, "<:raw", $path
514	or die "$path: $!";	844	or die "$path: $!";
515		845
516	my $source = untaint	846	my $source =
517	"package $pkg; use strict; use utf8;\n"	847	"package $pkg; use strict; use utf8; no warnings 'utf8';\n"
518	. "use base urxvt::term::extension::;\n"
519	. "#line 1 \"$path\"\n{\n"	848	. "#line 1 \"$path\"\n{\n"
520	. (do { local $/; <$fh> })	849	. (do { local $/; <$fh> })
521	. "\n};\n1";	850	. "\n};\n1";
522		851
523	eval $source	852	eval $source
…		…
537	if ($htype == 0) { # INIT	866	if ($htype == 0) { # INIT
538	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");	867	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
539		868
540	my %ext_arg;	869	my %ext_arg;
541		870
		871	{
		872	my @init = @TERM_INIT;
		873	@TERM_INIT = ();
		874	$_->($TERM) for @init;
		875	my @pkg = @TERM_EXT;
		876	@TERM_EXT = ();
		877	$TERM->register_package ($_) for @pkg;
		878	}
		879
542	for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {	880	for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
543	if ($_ eq "default") {	881	if ($_ eq "default") {
544	$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback);	882	$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
545	} elsif (/^-(.*)$/) {	883	} elsif (/^-(.*)$/) {
546	delete $ext_arg{$1};	884	delete $ext_arg{$1};
547	} elsif (/^([^<]+)<(.*)>$/) {	885	} elsif (/^([^<]+)<(.*)>$/) {
548	push @{ $ext_arg{$1} }, $2;	886	push @{ $ext_arg{$1} }, $2;
549	} else {	887	} else {
550	$ext_arg{$_} ||= [];	888	$ext_arg{$_} ||= [];
551	}	889	}
552	}	890	}
553		891
554	while (my ($ext, $argv) = each %ext_arg) {	892	for my $ext (sort keys %ext_arg) {
555	my @files = grep -f $_, map "$_/$ext", @dirs;	893	my @files = grep -f $_, map "$_/$ext", @dirs;
556		894
557	if (@files) {	895	if (@files) {
558	$TERM->register_package (extension_package $files[0], $argv);	896	$TERM->register_package (extension_package $files[0], $ext_arg{$ext});
559	} else {	897	} else {
560	warn "perl extension '$ext' not found in perl library search path\n";	898	warn "perl extension '$ext' not found in perl library search path\n";
561	}	899	}
562	}	900	}
563		901
…		…
569		907
570	if (my $cb = $TERM->{_hook}[$htype]) {	908	if (my $cb = $TERM->{_hook}[$htype]) {
571	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"	909	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
572	if $verbosity >= 10;	910	if $verbosity >= 10;
573		911
574	keys %$cb;	912	for my $pkg (keys %$cb) {
575
576	while (my ($pkg, $cb) = each %$cb) {
577	$retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) }	913	my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg}, @_) };
578	and last;	914	$retval ||= $retval_;
579		915
580	if ($@) {	916	if ($@) {
581	$TERM->ungrab; # better to lose the grab than the session	917	$TERM->ungrab; # better to lose the grab than the session
582	warn $@;	918	warn $@;
583	}	919	}
584	}	920	}
		921
		922	verbose 11, "$HOOKNAME[$htype] returning <$retval>"
		923	if $verbosity >= 11;
585	}	924	}
586		925
587	if ($htype == 1) { # DESTROY	926	if ($htype == 1) { # DESTROY
588	if (my $hook = delete $TERM->{_hook}) {
589	for my $htype (0..$#$hook) {
590	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
591	or set_should_invoke $htype, 0;
592	}
593	}
594
595	# clear package objects	927	# clear package objects
596	%$_ = () for values %{ $TERM->{_pkg} };	928	%$_ = () for values %{ $TERM->{_pkg} };
597		929
598	# clear package	930	# clear package
599	%$TERM = ();	931	%$TERM = ();
600	}	932	}
601		933
602	$retval	934	$retval
		935	}
		936
		937	sub SET_COLOR($$$) {
		938	SET_BGCOLOR (SET_FGCOLOR ($_[0], $_[1]), $_[2])
603	}	939	}
604		940
605	# urxvt::term::extension	941	# urxvt::term::extension
606		942
607	package urxvt::term::extension;	943	package urxvt::term::extension;
…		…
613	while (my ($name, $cb) = each %hook) {	949	while (my ($name, $cb) = each %hook) {
614	my $htype = $HOOKTYPE{uc $name};	950	my $htype = $HOOKTYPE{uc $name};
615	defined $htype	951	defined $htype
616	or Carp::croak "unsupported hook type '$name'";	952	or Carp::croak "unsupported hook type '$name'";
617		953
		954	$self->set_should_invoke ($htype, +1)
618	unless (exists $self->{term}{_hook}[$htype]{$pkg}) {	955	unless exists $self->{term}{_hook}[$htype]{$pkg};
619	$hook_count[$htype]++
620	or urxvt::set_should_invoke $htype, 1;
621	}
622		956
623	$self->{term}{_hook}[$htype]{$pkg} = $cb;	957	$self->{term}{_hook}[$htype]{$pkg} = $cb;
624	}	958	}
625	}	959	}
626		960
…		…
631	for my $name (@hook) {	965	for my $name (@hook) {
632	my $htype = $HOOKTYPE{uc $name};	966	my $htype = $HOOKTYPE{uc $name};
633	defined $htype	967	defined $htype
634	or Carp::croak "unsupported hook type '$name'";	968	or Carp::croak "unsupported hook type '$name'";
635		969
		970	$self->set_should_invoke ($htype, -1)
636	if (delete $self->{term}{_hook}[$htype]{$pkg}) {	971	if delete $self->{term}{_hook}[$htype]{$pkg};
637	--$hook_count[$htype]
638	or urxvt::set_should_invoke $htype, 0;
639	}
640	}	972	}
641	}	973	}
642		974
643	our $AUTOLOAD;	975	our $AUTOLOAD;
644		976
…		…
675		1007
676	=head2 The C<urxvt::anyevent> Class	1008	=head2 The C<urxvt::anyevent> Class
677		1009
678	The sole purpose of this class is to deliver an interface to the	1010	The sole purpose of this class is to deliver an interface to the
679	C<AnyEvent> module - any module using it will work inside urxvt without	1011	C<AnyEvent> module - any module using it will work inside urxvt without
680	further work. The only exception is that you cannot wait on condition	1012	further programming. The only exception is that you cannot wait on
681	variables, but non-blocking condvar use is ok. What this means is that you	1013	condition variables, but non-blocking condvar use is ok. What this means
682	cannot use blocking APIs, but the non-blocking variant should work.	1014	is that you cannot use blocking APIs, but the non-blocking variant should
		1015	work.
683		1016
684	=cut	1017	=cut
685		1018
686	our $VERSION = 1;	1019	our $VERSION = 1;
687		1020
…		…
749	# find on_xxx subs in the package and register them	1082	# find on_xxx subs in the package and register them
750	# as hooks	1083	# as hooks
751	sub register_package {	1084	sub register_package {
752	my ($self, $pkg, $argv) = @_;	1085	my ($self, $pkg, $argv) = @_;
753		1086
		1087	no strict 'refs';
		1088
		1089	urxvt::verbose 6, "register package $pkg to $self";
		1090
		1091	@{"$pkg\::ISA"} = urxvt::term::extension::;
		1092
754	my $proxy = bless {	1093	my $proxy = bless {
755	_pkg => $pkg,	1094	_pkg => $pkg,
756	argv => $argv,	1095	argv => $argv,
757	}, $pkg;	1096	}, $pkg;
758	Scalar::Util::weaken ($proxy->{term} = $self);	1097	Scalar::Util::weaken ($proxy->{term} = $self);
…		…
764	$proxy->enable ($name => $ref);	1103	$proxy->enable ($name => $ref);
765	}	1104	}
766	}	1105	}
767	}	1106	}
768		1107
		1108	=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
		1109
		1110	Creates a new terminal, very similar as if you had started it with system
		1111	C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
		1112	hash which defines the environment of the new terminal.
		1113
		1114	Croaks (and probably outputs an error message) if the new instance
		1115	couldn't be created. Returns C<undef> if the new instance didn't
		1116	initialise perl, and the terminal object otherwise. The C<init> and
		1117	C<start> hooks will be called before this call returns, and are free to
		1118	refer to global data (which is race free).
		1119
		1120	=cut
		1121
		1122	sub new {
		1123	my ($class, $env, @args) = @_;
		1124
		1125	$env or Carp::croak "environment hash missing in call to urxvt::term->new";
		1126	@args or Carp::croak "name argument missing in call to urxvt::term->new";
		1127
		1128	_new ([ map "$_=$env->{$_}", keys %$env ], \@args);
		1129	}
		1130
769	=item $term->destroy	1131	=item $term->destroy
770		1132
771	Destroy the terminal object (close the window, free resources etc.).	1133	Destroy the terminal object (close the window, free resources
		1134	etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
		1135	watchers (timers, io watchers) are still active.
		1136
		1137	=item $term->exec_async ($cmd[, @args])
		1138
		1139	Works like the combination of the C<fork>/C<exec> builtins, which executes
		1140	("starts") programs in the background. This function takes care of setting
		1141	the user environment before exec'ing the command (e.g. C<PATH>) and should
		1142	be preferred over explicit calls to C<exec> or C<system>.
		1143
		1144	Returns the pid of the subprocess or C<undef> on error.
		1145
		1146	=cut
		1147
		1148	sub exec_async {
		1149	my $self = shift;
		1150
		1151	my $pid = fork;
		1152
		1153	return $pid
		1154	if !defined $pid or $pid;
		1155
		1156	%ENV = %{ $self->env };
		1157
		1158	exec @_;
		1159	urxvt::_exit 255;
		1160	}
772		1161
773	=item $isset = $term->option ($optval[, $set])	1162	=item $isset = $term->option ($optval[, $set])
774		1163
775	Returns true if the option specified by C<$optval> is enabled, and	1164	Returns true if the option specified by C<$optval> is enabled, and
776	optionally change it. All option values are stored by name in the hash	1165	optionally change it. All option values are stored by name in the hash
…		…
779	Here is a a likely non-exhaustive list of option names, please see the	1168	Here is a a likely non-exhaustive list of option names, please see the
780	source file F</src/optinc.h> to see the actual list:	1169	source file F</src/optinc.h> to see the actual list:
781		1170
782	borderLess console cursorBlink cursorUnderline hold iconic insecure	1171	borderLess console cursorBlink cursorUnderline hold iconic insecure
783	intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage	1172	intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
784	pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating	1173	override-redirect pastableTabs pointerBlank reverseVideo scrollBar
785	scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer	1174	scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
786	secondaryScreen secondaryScroll skipBuiltinGlyphs transparent	1175	scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
787	tripleclickwords utmpInhibit visualBell	1176	transparent tripleclickwords utmpInhibit visualBell
788		1177
789	=item $value = $term->resource ($name[, $newval])	1178	=item $value = $term->resource ($name[, $newval])
790		1179
791	Returns the current resource value associated with a given name and	1180	Returns the current resource value associated with a given name and
792	optionally sets a new value. Setting values is most useful in the C<init>	1181	optionally sets a new value. Setting values is most useful in the C<init>
…		…
809		1198
810	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont	1199	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
811	borderLess color cursorBlink cursorUnderline cutchars delete_key	1200	borderLess color cursorBlink cursorUnderline cutchars delete_key
812	display_name embed ext_bwidth fade font geometry hold iconName	1201	display_name embed ext_bwidth fade font geometry hold iconName
813	imFont imLocale inputMethod insecure int_bwidth intensityStyles	1202	imFont imLocale inputMethod insecure int_bwidth intensityStyles
814	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier	1203	italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
815	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2	1204	mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
816	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd	1205	perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
817	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating	1206	preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
818	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput	1207	scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
819	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle	1208	scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
820	shade term_name title transparent transparent_all tripleclickwords	1209	secondaryScreen secondaryScroll selectstyle shade term_name title
821	utmpInhibit visualBell	1210	transient_for transparent transparent_all tripleclickwords utmpInhibit
		1211	visualBell
822		1212
823	=cut	1213	=cut
824		1214
825	sub resource($$;$) {	1215	sub resource($$;$) {
826	my ($self, $name) = (shift, shift);	1216	my ($self, $name) = (shift, shift);
827	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);	1217	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
828	&urxvt::term::_resource	1218	&urxvt::term::_resource
829	}	1219	}
830		1220
		1221	=item $value = $term->x_resource ($pattern)
		1222
		1223	Returns the X-Resource for the given pattern, excluding the program or
		1224	class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
		1225	same value as used by this instance of rxvt-unicode. Returns C<undef> if no
		1226	resource with that pattern exists.
		1227
		1228	This method should only be called during the C<on_start> hook, as there is
		1229	only one resource database per display, and later invocations might return
		1230	the wrong resources.
		1231
831	=item $success = $term->parse_keysym ($keysym_spec, $command_string)	1232	=item $success = $term->parse_keysym ($keysym_spec, $command_string)
832		1233
833	Adds a keymap translation exactly as specified via a resource. See the	1234	Adds a keymap translation exactly as specified via a resource. See the
834	C<keysym> resource in the @@RXVT_NAME@@(1) manpage.	1235	C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
835		1236
…		…
850	=item ($row, $col) = $term->selection_end ([$row, $col])	1251	=item ($row, $col) = $term->selection_end ([$row, $col])
851		1252
852	Return the current values of the selection mark, begin or end positions,	1253	Return the current values of the selection mark, begin or end positions,
853	and optionally set them to new values.	1254	and optionally set them to new values.
854		1255
		1256	=item $term->selection_make ($eventtime[, $rectangular])
		1257
		1258	Tries to make a selection as set by C<selection_beg> and
		1259	C<selection_end>. If C<$rectangular> is true (default: false), a
		1260	rectangular selection will be made. This is the prefered function to make
		1261	a selection.
		1262
855	=item $success = $term->selection_grab ($eventtime)	1263	=item $success = $term->selection_grab ($eventtime)
856		1264
857	Try to request the primary selection from the server (for example, as set	1265	Try to request the primary selection text from the server (for example, as
858	by the next method).	1266	set by the next method). No visual feedback will be given. This function
		1267	is mostly useful from within C<on_sel_grab> hooks.
859		1268
860	=item $oldtext = $term->selection ([$newtext])	1269	=item $oldtext = $term->selection ([$newtext])
861		1270
862	Return the current selection text and optionally replace it by C<$newtext>.	1271	Return the current selection text and optionally replace it by C<$newtext>.
863		1272
…		…
956	Convert the given locale-encoded octets into a perl string.	1365	Convert the given locale-encoded octets into a perl string.
957		1366
958	=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])	1367	=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
959		1368
960	XORs the rendition values in the given span with the provided value	1369	XORs the rendition values in the given span with the provided value
961	(default: C<RS_RVid>). Useful in refresh hooks to provide effects similar	1370	(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
962	to the selection.	1371	refresh hooks to provide effects similar to the selection.
963		1372
964	=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])	1373	=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
965		1374
966	Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing	1375	Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
967	whitespace will additionally be xored with the C<$rstyle2>, which defaults	1376	whitespace will additionally be xored with the C<$rstyle2>, which defaults
968	to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines	1377	to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
969	it instead.	1378	it instead. Both styles I<MUST NOT> contain font styles.
970		1379
971	=item $term->scr_bell	1380	=item $term->scr_bell
972		1381
973	Ring the bell!	1382	Ring the bell!
974		1383
…		…
981		1390
982	Normally its not a good idea to use this function, as programs might be	1391	Normally its not a good idea to use this function, as programs might be
983	confused by changes in cursor position or scrolling. Its useful inside a	1392	confused by changes in cursor position or scrolling. Its useful inside a
984	C<on_add_lines> hook, though.	1393	C<on_add_lines> hook, though.
985		1394
		1395	=item $term->scr_change_screen ($screen)
		1396
		1397	Switch to given screen - 0 primary, 1 secondary.
		1398
986	=item $term->cmd_parse ($octets)	1399	=item $term->cmd_parse ($octets)
987		1400
988	Similar to C<scr_add_lines>, but the argument must be in the	1401	Similar to C<scr_add_lines>, but the argument must be in the
989	locale-specific encoding of the terminal and can contain command sequences	1402	locale-specific encoding of the terminal and can contain command sequences
990	(escape codes) that will be interpreted.	1403	(escape codes) that will be interpreted.
…		…
1000	Replaces the event mask of the pty watcher by the given event mask. Can	1413	Replaces the event mask of the pty watcher by the given event mask. Can
1001	be used to suppress input and output handling to the pty/tty. See the	1414	be used to suppress input and output handling to the pty/tty. See the
1002	description of C<< urxvt::timer->events >>. Make sure to always restore	1415	description of C<< urxvt::timer->events >>. Make sure to always restore
1003	the previous value.	1416	the previous value.
1004		1417
		1418	=item $fd = $term->pty_fd
		1419
		1420	Returns the master file descriptor for the pty in use, or C<-1> if no pty
		1421	is used.
		1422
1005	=item $windowid = $term->parent	1423	=item $windowid = $term->parent
1006		1424
1007	Return the window id of the toplevel window.	1425	Return the window id of the toplevel window.
1008		1426
1009	=item $windowid = $term->vt	1427	=item $windowid = $term->vt
1010		1428
1011	Return the window id of the terminal window.	1429	Return the window id of the terminal window.
1012		1430
		1431	=item $term->vt_emask_add ($x_event_mask)
		1432
		1433	Adds the specified events to the vt event mask. Useful e.g. when you want
		1434	to receive pointer events all the times:
		1435
		1436	$term->vt_emask_add (urxvt::PointerMotionMask);
		1437
		1438	=item $term->focus_in
		1439
		1440	=item $term->focus_out
		1441
		1442	=item $term->key_press ($state, $keycode[, $time])
		1443
		1444	=item $term->key_release ($state, $keycode[, $time])
		1445
		1446	Deliver various fake events to to terminal.
		1447
1013	=item $window_width = $term->width	1448	=item $window_width = $term->width
1014		1449
1015	=item $window_height = $term->height	1450	=item $window_height = $term->height
1016		1451
1017	=item $font_width = $term->fwidth	1452	=item $font_width = $term->fwidth
…		…
1030		1465
1031	=item $max_scrollback = $term->saveLines	1466	=item $max_scrollback = $term->saveLines
1032		1467
1033	=item $nrow_plus_saveLines = $term->total_rows	1468	=item $nrow_plus_saveLines = $term->total_rows
1034		1469
1035	=item $lines_in_scrollback = $term->nsaved	1470	=item $topmost_scrollback_row = $term->top_row
1036		1471
1037	Return various integers describing terminal characteristics.	1472	Return various integers describing terminal characteristics.
1038		1473
		1474	=item $x_display = $term->display_id
		1475
		1476	Return the DISPLAY used by rxvt-unicode.
		1477
1039	=item $lc_ctype = $term->locale	1478	=item $lc_ctype = $term->locale
1040		1479
1041	Returns the LC_CTYPE category string used by this rxvt-unicode.	1480	Returns the LC_CTYPE category string used by this rxvt-unicode.
1042		1481
1043	=item $x_display = $term->display_id	1482	=item $env = $term->env
1044		1483
1045	Return the DISPLAY used by rxvt-unicode.	1484	Returns a copy of the environment in effect for the terminal as a hashref
		1485	similar to C<\%ENV>.
		1486
		1487	=item @envv = $term->envv
		1488
		1489	Returns the environment as array of strings of the form C<VAR=VALUE>.
		1490
		1491	=item @argv = $term->argv
		1492
		1493	Return the argument vector as this terminal, similar to @ARGV, but
		1494	includes the program name as first element.
		1495
		1496	=cut
		1497
		1498	sub env {
		1499	+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), $_[0]->envv }
		1500	}
1046		1501
1047	=item $modifiermask = $term->ModLevel3Mask	1502	=item $modifiermask = $term->ModLevel3Mask
1048		1503
1049	=item $modifiermask = $term->ModMetaMask	1504	=item $modifiermask = $term->ModMetaMask
1050		1505
1051	=item $modifiermask = $term->ModNumLockMask	1506	=item $modifiermask = $term->ModNumLockMask
1052		1507
1053	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often	1508	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1054	AltGr), the meta key (often Alt) and the num lock key, if applicable.	1509	AltGr), the meta key (often Alt) and the num lock key, if applicable.
1055		1510
		1511	=item $screen = $term->current_screen
		1512
		1513	Returns the currently displayed screen (0 primary, 1 secondary).
		1514
		1515	=item $cursor_is_hidden = $term->hidden_cursor
		1516
		1517	Returns wether the cursor is currently hidden or not.
		1518
1056	=item $view_start = $term->view_start ([$newvalue])	1519	=item $view_start = $term->view_start ([$newvalue])
1057		1520
1058	Returns the negative row number of the topmost line. Minimum value is	1521	Returns the row number of the topmost displayed line. Maximum value is
1059	C<0>, which displays the normal terminal contents. Larger values scroll	1522	C<0>, which displays the normal terminal contents. Lower values scroll
1060	this many lines into the scrollback buffer.	1523	this many lines into the scrollback buffer.
1061		1524
1062	=item $term->want_refresh	1525	=item $term->want_refresh
1063		1526
1064	Requests a screen refresh. At the next opportunity, rxvt-unicode will	1527	Requests a screen refresh. At the next opportunity, rxvt-unicode will
…		…
1079	line, starting at column C<$start_col> (default C<0>), which is useful	1542	line, starting at column C<$start_col> (default C<0>), which is useful
1080	to replace only parts of a line. The font index in the rendition will	1543	to replace only parts of a line. The font index in the rendition will
1081	automatically be updated.	1544	automatically be updated.
1082		1545
1083	C<$text> is in a special encoding: tabs and wide characters that use more	1546	C<$text> is in a special encoding: tabs and wide characters that use more
1084	than one cell when displayed are padded with urxvt::NOCHAR characters	1547	than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
1085	(C<chr 65535>). Characters with combining characters and other characters	1548	characters. Characters with combining characters and other characters that
1086	that do not fit into the normal tetx encoding will be replaced with	1549	do not fit into the normal tetx encoding will be replaced with characters
1087	characters in the private use area.	1550	in the private use area.
1088		1551
1089	You have to obey this encoding when changing text. The advantage is	1552	You have to obey this encoding when changing text. The advantage is
1090	that C<substr> and similar functions work on screen cells and not on	1553	that C<substr> and similar functions work on screen cells and not on
1091	characters.	1554	characters.
1092		1555
…		…
1143	Return the row number of the first/last row of the line, respectively.	1606	Return the row number of the first/last row of the line, respectively.
1144		1607
1145	=item $offset = $line->offset_of ($row, $col)	1608	=item $offset = $line->offset_of ($row, $col)
1146		1609
1147	Returns the character offset of the given row|col pair within the logical	1610	Returns the character offset of the given row|col pair within the logical
1148	line.	1611	line. Works for rows outside the line, too, and returns corresponding
		1612	offsets outside the string.
1149		1613
1150	=item ($row, $col) = $line->coord_of ($offset)	1614	=item ($row, $col) = $line->coord_of ($offset)
1151		1615
1152	Translates a string offset into terminal coordinates again.	1616	Translates a string offset into terminal coordinates again.
1153		1617
…		…
1238	=item $string = $term->special_decode $text	1702	=item $string = $term->special_decode $text
1239		1703
1240	Converts rxvt-unicodes text reprsentation into a perl string. See	1704	Converts rxvt-unicodes text reprsentation into a perl string. See
1241	C<< $term->ROW_t >> for details.	1705	C<< $term->ROW_t >> for details.
1242		1706
1243	=item $success = $term->grab_button ($button, $modifiermask)	1707	=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
1244		1708
		1709	=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
		1710
1245	Registers a synchronous button grab. See the XGrabButton manpage.	1711	Register/unregister a synchronous button grab. See the XGrabButton
		1712	manpage.
1246		1713
1247	=item $success = $term->grab ($eventtime[, $sync])	1714	=item $success = $term->grab ($eventtime[, $sync])
1248		1715
1249	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or	1716	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
1250	synchronous (C<$sync> is true). Also remembers the grab timestampe.	1717	synchronous (C<$sync> is true). Also remembers the grab timestampe.
…		…
1266		1733
1267	Calls XUngrab for the most recent grab. Is called automatically on	1734	Calls XUngrab for the most recent grab. Is called automatically on
1268	evaluation errors, as it is better to lose the grab in the error case as	1735	evaluation errors, as it is better to lose the grab in the error case as
1269	the session.	1736	the session.
1270		1737
		1738	=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
		1739
		1740	=item $atom_name = $term->XGetAtomName ($atom)
		1741
		1742	=item @atoms = $term->XListProperties ($window)
		1743
		1744	=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
		1745
		1746	=item $term->XChangeWindowProperty ($window, $property, $type, $format, $octets)
		1747
		1748	=item $term->XDeleteProperty ($window, $property)
		1749
		1750	=item $window = $term->DefaultRootWindow
		1751
		1752	=item $term->XReparentWindow ($window, $parent, [$x, $y])
		1753
		1754	=item $term->XMapWindow ($window)
		1755
		1756	=item $term->XUnmapWindow ($window)
		1757
		1758	=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
		1759
		1760	=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
		1761
		1762	=item $term->XChangeInput ($window, $add_events[, $del_events])
		1763
		1764	Various X or X-related functions. The C<$term> object only serves as
		1765	the source of the display, otherwise those functions map more-or-less
		1766	directory onto the X functions of the same name.
		1767
1271	=back	1768	=back
1272		1769
1273	=cut	1770	=cut
1274		1771
1275	package urxvt::popup;	1772	package urxvt::popup;
…		…
1289		1786
1290	$item->{render} ||= sub { $_[0]{text} };	1787	$item->{render} ||= sub { $_[0]{text} };
1291		1788
1292	push @{ $self->{item} }, $item;	1789	push @{ $self->{item} }, $item;
1293	}	1790	}
		1791
		1792	=item $popup->add_title ($title)
		1793
		1794	Adds a non-clickable title to the popup.
		1795
		1796	=cut
		1797
		1798	sub add_title {
		1799	my ($self, $title) = @_;
		1800
		1801	$self->add_item ({
		1802	rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
		1803	text => $title,
		1804	activate => sub { },
		1805	});
		1806	}
		1807
		1808	=item $popup->add_separator ([$sepchr])
		1809
		1810	Creates a separator, optionally using the character given as C<$sepchr>.
		1811
		1812	=cut
1294		1813
1295	sub add_separator {	1814	sub add_separator {
1296	my ($self, $sep) = @_;	1815	my ($self, $sep) = @_;
1297		1816
1298	$sep ||= "=";	1817	$sep ||= "=";
…		…
1303	render => sub { $sep x $self->{term}->ncol },	1822	render => sub { $sep x $self->{term}->ncol },
1304	activate => sub { },	1823	activate => sub { },
1305	});	1824	});
1306	}	1825	}
1307		1826
1308	sub add_title {	1827	=item $popup->add_button ($text, $cb)
1309	my ($self, $title) = @_;
1310		1828
1311	$self->add_item ({	1829	Adds a clickable button to the popup. C<$cb> is called whenever it is
1312	rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },	1830	selected.
1313	text => $title,	1831
1314	activate => sub { },	1832	=cut
1315	});
1316	}
1317		1833
1318	sub add_button {	1834	sub add_button {
1319	my ($self, $text, $cb) = @_;	1835	my ($self, $text, $cb) = @_;
1320		1836
1321	$self->add_item ({ type => "button", text => $text, activate => $cb});	1837	$self->add_item ({ type => "button", text => $text, activate => $cb});
1322	}	1838	}
1323		1839
		1840	=item $popup->add_toggle ($text, $initial_value, $cb)
		1841
		1842	Adds a toggle/checkbox item to the popup. The callback gets called
		1843	whenever it gets toggled, with a boolean indicating its new value as its
		1844	first argument.
		1845
		1846	=cut
		1847
1324	sub add_toggle {	1848	sub add_toggle {
1325	my ($self, $text, $cb, $value) = @_;	1849	my ($self, $text, $value, $cb) = @_;
1326		1850
1327	my $item; $item = {	1851	my $item; $item = {
1328	type => "button",	1852	type => "button",
1329	text => " $text",	1853	text => " $text",
1330	value => $value,	1854	value => $value,
1331	render => sub { ($_[0]{value} ? "* " : " ") . $text },	1855	render => sub { ($_[0]{value} ? "* " : " ") . $text },
1332	activate => sub { $cb->($_[0]{value} = !$_[0]{value}); },	1856	activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
1333	};	1857	};
1334		1858
1335	$self->add_item ($item);	1859	$self->add_item ($item);
1336	}	1860	}
		1861
		1862	=item $popup->show
		1863
		1864	Displays the popup (which is initially hidden).
		1865
		1866	=cut
1337		1867
1338	sub show {	1868	sub show {
1339	my ($self) = @_;	1869	my ($self) = @_;
1340		1870
1341	local $urxvt::popup::self = $self;	1871	local $urxvt::popup::self = $self;
1342		1872
		1873	my $env = $self->{term}->env;
		1874	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
		1875	delete $env->{LC_ALL};
1343	local $ENV{LC_ALL} = $self->{term}->locale;	1876	$env->{LC_CTYPE} = $self->{term}->locale;
1344		1877
1345	urxvt->new ("--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0,	1878	urxvt::term->new ($env, "popup",
		1879	"--perl-lib" => "", "--perl-ext-common" => "",
		1880	"-pty-fd" => -1, "-sl" => 0,
		1881	"-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1346	"--transient-for" => $self->{term}->parent,	1882	"--transient-for" => $self->{term}->parent,
1347	"-display" => $self->{term}->display_id,	1883	"-display" => $self->{term}->display_id,
1348	"-pe" => "urxvt-popup")	1884	"-pe" => "urxvt-popup")
1349	or die "unable to create popup window\n";	1885	or die "unable to create popup window\n";
1350	}	1886	}
1351		1887
1352	sub DESTROY {	1888	sub DESTROY {
1353	my ($self) = @_;	1889	my ($self) = @_;
1354		1890
1355	delete $self->{term}{_destroy}{$self};	1891	delete $self->{term}{_destroy}{$self};
1356	$self->{term}->ungrab;	1892	$self->{term}->ungrab;
1357	}	1893	}
		1894
		1895	=back
		1896
		1897	=cut
		1898
		1899	package urxvt::watcher;
		1900
		1901	@urxvt::timer::ISA = __PACKAGE__;
		1902	@urxvt::iow::ISA = __PACKAGE__;
		1903	@urxvt::pw::ISA = __PACKAGE__;
		1904	@urxvt::iw::ISA = __PACKAGE__;
1358		1905
1359	=head2 The C<urxvt::timer> Class	1906	=head2 The C<urxvt::timer> Class
1360		1907
1361	This class implements timer watchers/events. Time is represented as a	1908	This class implements timer watchers/events. Time is represented as a
1362	fractional number of seconds since the epoch. Example:	1909	fractional number of seconds since the epoch. Example:
…		…
1400	Start the timer.	1947	Start the timer.
1401		1948
1402	=item $timer = $timer->start ($tstamp)	1949	=item $timer = $timer->start ($tstamp)
1403		1950
1404	Set the event trigger time to C<$tstamp> and start the timer.	1951	Set the event trigger time to C<$tstamp> and start the timer.
		1952
		1953	=item $timer = $timer->after ($delay)
		1954
		1955	Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1405		1956
1406	=item $timer = $timer->stop	1957	=item $timer = $timer->stop
1407		1958
1408	Stop the timer.	1959	Stop the timer.
1409		1960
…		…
1456		2007
1457	Stop watching for events on the given filehandle.	2008	Stop watching for events on the given filehandle.
1458		2009
1459	=back	2010	=back
1460		2011
		2012	=head2 The C<urxvt::iw> Class
		2013
		2014	This class implements idle watchers, that get called automatically when
		2015	the process is idle. They should return as fast as possible, after doing
		2016	some useful work.
		2017
		2018	=over 4
		2019
		2020	=item $iw = new urxvt::iw
		2021
		2022	Create a new idle watcher object in stopped state.
		2023
		2024	=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
		2025
		2026	Set the callback to be called when the watcher triggers.
		2027
		2028	=item $timer = $timer->start
		2029
		2030	Start the watcher.
		2031
		2032	=item $timer = $timer->stop
		2033
		2034	Stop the watcher.
		2035
		2036	=back
		2037
		2038	=head2 The C<urxvt::pw> Class
		2039
		2040	This class implements process watchers. They create an event whenever a
		2041	process exits, after which they stop automatically.
		2042
		2043	my $pid = fork;
		2044	...
		2045	$term->{pw} = urxvt::pw
		2046	->new
		2047	->start ($pid)
		2048	->cb (sub {
		2049	my ($pw, $exit_status) = @_;
		2050	...
		2051	});
		2052
		2053	=over 4
		2054
		2055	=item $pw = new urxvt::pw
		2056
		2057	Create a new process watcher in stopped state.
		2058
		2059	=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
		2060
		2061	Set the callback to be called when the timer triggers.
		2062
		2063	=item $pw = $timer->start ($pid)
		2064
		2065	Tells the wqtcher to start watching for process C<$pid>.
		2066
		2067	=item $pw = $pw->stop
		2068
		2069	Stop the watcher.
		2070
		2071	=back
		2072
1461	=head1 ENVIRONMENT	2073	=head1 ENVIRONMENT
1462		2074
1463	=head2 URXVT_PERL_VERBOSITY	2075	=head2 URXVT_PERL_VERBOSITY
1464		2076
1465	This variable controls the verbosity level of the perl extension. Higher	2077	This variable controls the verbosity level of the perl extension. Higher
…		…
1469		2081
1470	=item == 0 - fatal messages	2082	=item == 0 - fatal messages
1471		2083
1472	=item >= 3 - script loading and management	2084	=item >= 3 - script loading and management
1473		2085
1474	=item >=10 - all events received	2086	=item >=10 - all called hooks
		2087
		2088	=item >=11 - hook reutrn values
1475		2089
1476	=back	2090	=back
1477		2091
1478	=head1 AUTHOR	2092	=head1 AUTHOR
1479		2093

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