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Revision 1.40 by root, Fri Jan 6 05:37:59 2006 UTC vs.
Revision 1.127 by root, Wed Jan 25 00:42:21 2006 UTC

…		…
17		17
18	@@RXVT_NAME@@ --perl-lib $HOME -pe grab_test	18	@@RXVT_NAME@@ --perl-lib $HOME -pe grab_test
19		19
20	=head1 DESCRIPTION	20	=head1 DESCRIPTION
21		21
22	Everytime a terminal object gets created, scripts specified via the	22	Everytime a terminal object gets created, extension scripts specified via
23	C<perl> resource are loaded and associated with it.	23	the C<perl> resource are loaded and associated with it.
24		24
25	Scripts are compiled in a 'use strict' and 'use utf8' environment, and	25	Scripts are compiled in a 'use strict' and 'use utf8' environment, and
26	thus must be encoded as UTF-8.	26	thus must be encoded as UTF-8.
27		27
28	Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where	28	Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where
29	scripts will be shared (but not enabled) for all terminals.	29	scripts will be shared (but not enabled) for all terminals.
30		30
31	=head2 Prepackaged Extensions	31	=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	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
…		…
56		89
57	URxvt.keysym.C-M-r: perl:selection:rot13	90	URxvt.keysym.C-M-r: perl:selection:rot13
58		91
59	=back	92	=back
60		93
		94	=item option-popup (enabled by default)
		95
		96	Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at
		97	runtime.
		98
		99	=item selection-popup (enabled by default)
		100
		101	Binds a popup menu to Ctrl-Button3 that lets you convert the selection
		102	text into various other formats/action (such as uri unescaping, perl
		103	evaluation, web-browser starting etc.), depending on content.
		104
		105	Other extensions can extend this popup menu by pushing a code reference
		106	onto C<@{ $term->{selection_popup_hook} }>, that is called whenever the
		107	popup is displayed.
		108
		109	It's sole argument is the popup menu, which can be modified. The selection
		110	is in C<$_>, which can be used to decide wether to add something or not.
		111	It should either return nothing or a string and a code reference. The
		112	string will be used as button text and the code reference will be called
		113	when the button gets activated and should transform C<$_>.
		114
		115	The following will add an entry C<a to b> that transforms all C<a>s in
		116	the selection to C<b>s, but only if the selection currently contains any
		117	C<a>s:
		118
		119	push @{ $self->{term}{selection_popup_hook} }, sub {
		120	/a/ ? ("a to be" => sub { s/a/b/g }
		121	: ()
		122	};
		123
		124	=item searchable-scrollback<hotkey> (enabled by default)
		125
		126	Adds regex search functionality to the scrollback buffer, triggered
		127	by a hotkey (default: C<M-s>). While in search mode, normal terminal
		128	input/output is suspended and a regex is displayed at the bottom of the
		129	screen.
		130
		131	Inputting characters appends them to the regex and continues incremental
		132	search. C<BackSpace> removes a character from the regex, C<Up> and C<Down>
		133	search upwards/downwards in the scrollback buffer, C<End> jumps to the
		134	bottom. C<Escape> leaves search mode and returns to the point where search
		135	was started, while C<Enter> or C<Return> stay at the current position and
		136	additionally stores the first match in the current line into the primary
		137	selection.
		138
		139	=item readline (enabled by default)
		140
		141	A support package that tries to make editing with readline easier. At the
		142	moment, it reacts to clicking with the left mouse button by trying to
		143	move the text cursor to this position. It does so by generating as many
		144	cursor-left or cursor-right keypresses as required (the this only works
		145	for programs that correctly support wide characters).
		146
		147	To avoid too many false positives, this is only done when:
		148
		149	=over 4
		150
		151	=item - the tty is in ICANON state.
		152
		153	=item - the text cursor is visible.
		154
		155	=item - the primary screen is currently being displayed.
		156
		157	=item - the mouse is on the same (multi-row-) line as the text cursor.
		158
		159	=back
		160
		161	The normal selection mechanism isn't disabled, so quick successive clicks
		162	might interfere with selection creation in harmless ways.
		163
		164	=item selection-autotransform
		165
		166	This selection allows you to do automatic transforms on a selection
		167	whenever a selection is made.
		168
		169	It works by specifying perl snippets (most useful is a single C<s///>
		170	operator) that modify C<$_> as resources:
		171
		172	URxvt.selection-autotransform.0: transform
		173	URxvt.selection-autotransform.1: transform
		174	...
		175
		176	For example, the following will transform selections of the form
		177	C<filename:number>, often seen in compiler messages, into C<vi +$filename
		178	$word>:
		179
		180	URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
		181
		182	And this example matches the same,but replaces it with vi-commands you can
		183	paste directly into your (vi :) editor:
		184
		185	URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
		186
		187	Of course, this can be modified to suit your needs and your editor :)
		188
		189	To expand the example above to typical perl error messages ("XXX at
		190	FILENAME line YYY."), you need a slightly more elaborate solution:
		191
		192	URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
		193	URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
		194
		195	The first line tells the selection code to treat the unchanging part of
		196	every error message as a selection pattern, and the second line transforms
		197	the message into vi commands to load the file.
		198
		199	=item tabbed
		200
		201	This transforms the terminal into a tabbar with additional terminals, that
		202	is, it implements what is commonly refered to as "tabbed terminal". The topmost line
		203	displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
		204	button per tab.
		205
		206	Clicking a button will activate that tab. Pressing B<Shift-Left> and
		207	B<Shift-Right> will switch to the tab left or right of the current one,
		208	while B<Shift-Down> creates a new tab.
		209
		210	=item mark-urls
		211
		212	Uses per-line display filtering (C<on_line_update>) to underline urls and
		213	make them clickable. When middle-clicked, the program specified in the
		214	resource C<urlLauncher> (default C<x-www-browser>) will be started with
		215	the URL as first argument.
		216
		217	=item automove-background
		218
		219	This is basically a one-line extension that dynamically changes the background pixmap offset
		220	to the window position, in effect creating the same effect as pseudo transparency with
		221	a custom pixmap. No scaling is supported in this mode. Exmaple:
		222
		223	@@RXVT_NAME@@ -pixmap background.xpm -pe automove-background
		224
		225	=item block-graphics-to-ascii
		226
		227	A not very useful example of filtering all text output to the terminal,
		228	by replacing all line-drawing characters (U+2500 .. U+259F) by a
		229	similar-looking ascii character.
		230
61	=item digital-clock	231	=item digital-clock
62		232
63	Displays a digital clock using the built-in overlay.	233	Displays a digital clock using the built-in overlay.
64
65	=item mark-urls
66
67	Uses per-line filtering (C<on_line_update>) to underline urls.
68		234
69	=item example-refresh-hooks	235	=item example-refresh-hooks
70		236
71	Displays a very simple digital clock in the upper right corner of the	237	Displays a very simple digital clock in the upper right corner of the
72	window. Illustrates overwriting the refresh callbacks to create your own	238	window. Illustrates overwriting the refresh callbacks to create your own
73	overlays or changes.	239	overlays or changes.
74		240
75	=item example-filter-input	241	=item selection-pastebin
76		242
77	A not very useful example of filtering all text output to the terminal, by	243	This is a little rarely useful extension that Uploads the selection as
78	underlining all urls that matches a certain regex (i.e. some urls :). It	244	textfile to a remote site (or does other things). (The implementation is
79	is not very useful because urls that are output in multiple steps (e.g.	245	not currently secure for use in a multiuser environment as it writes to
80	when typing them) do not get marked.	246	F</tmp> directly.).
		247
		248	It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
		249	i.e.
		250
		251	URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
		252
		253	Pressing this combination runs a command with C<%> replaced by the name of
		254	the textfile. This command can be set via a resource:
		255
		256	URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
		257
		258	And the default is likely not useful to anybody but the few people around
		259	here :)
		260
		261	The name of the textfile is the hex encoded md5 sum of the selection, so
		262	the same content should lead to the same filename.
		263
		264	After a successful upload the selection will be replaced by the text given
		265	in the C<selection-pastebin-url> resource (again, the % is the placeholder
		266	for the filename):
		267
		268	URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
81		269
82	=back	270	=back
		271
		272	=head1 API DOCUMENTATION
83		273
84	=head2 General API Considerations	274	=head2 General API Considerations
85		275
86	All objects (such as terminals, time watchers etc.) are typical	276	All objects (such as terminals, time watchers etc.) are typical
87	reference-to-hash objects. The hash can be used to store anything you	277	reference-to-hash objects. The hash can be used to store anything you
…		…
100	=over 4	290	=over 4
101		291
102	=item $text	292	=item $text
103		293
104	Rxvt-unicodes special way of encoding text, where one "unicode" character	294	Rxvt-unicodes special way of encoding text, where one "unicode" character
105	always represents one screen cell. See L<row_t> for a discussion of this format.	295	always represents one screen cell. See L<ROW_t> for a discussion of this format.
106		296
107	=item $string	297	=item $string
108		298
109	A perl text string, with an emphasis on I<text>. It can store all unicode	299	A perl text string, with an emphasis on I<text>. It can store all unicode
110	characters and is to be distinguished with text encoded in a specific	300	characters and is to be distinguished with text encoded in a specific
…		…
115	Either binary data or - more common - a text string encoded in a	305	Either binary data or - more common - a text string encoded in a
116	locale-specific way.	306	locale-specific way.
117		307
118	=back	308	=back
119		309
		310	=head2 Extension Objects
		311
		312	Very perl extension is a perl class. A separate perl object is created
		313	for each terminal and each extension and passed as the first parameter to
		314	hooks. So extensions can use their C<$self> object without having to think
		315	about other extensions, with the exception of methods and members that
		316	begin with an underscore character C<_>: these are reserved for internal
		317	use.
		318
		319	Although it isn't a C<urxvt::term> object, you can call all methods of the
		320	C<urxvt::term> class on this object.
		321
		322	It has the following methods and data members:
		323
		324	=over 4
		325
		326	=item $urxvt_term = $self->{term}
		327
		328	Returns the C<urxvt::term> object associated with this instance of the
		329	extension. This member I<must not> be changed in any way.
		330
		331	=item $self->enable ($hook_name => $cb, [$hook_name => $cb..])
		332
		333	Dynamically enable the given hooks (named without the C<on_> prefix) for
		334	this extension, replacing any previous hook. This is useful when you want
		335	to overwrite time-critical hooks only temporarily.
		336
		337	=item $self->disable ($hook_name[, $hook_name..])
		338
		339	Dynamically disable the given hooks.
		340
		341	=back
		342
120	=head2 Hooks	343	=head2 Hooks
121		344
122	The following subroutines can be declared in loaded scripts, and will be	345	The following subroutines can be declared in extension files, and will be
123	called whenever the relevant event happens.	346	called whenever the relevant event happens.
124		347
125	The first argument passed to them is an object private to each terminal	348	The first argument passed to them is an extension oject as described in
126	and extension package. You can call all C<urxvt::term> methods on it, but	349	the in the C<Extension Objects> section.
127	its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
128	object that is shared between all packages is stored in the C<term>
129	member.
130		350
131	All of them must return a boolean value. If it is true, then the event	351	B<All> of these hooks must return a boolean value. If any of the called
132	counts as being I<consumed>, and the invocation of other hooks is skipped,	352	hooks returns true, then the event counts as being I<consumed>, and the
133	and the relevant action might not be carried out by the C++ code.	353	relevant action might not be carried out by the C++ code.
134		354
135	When in doubt, return a false value (preferably C<()>).	355	I<< When in doubt, return a false value (preferably C<()>). >>
136		356
137	=over 4	357	=over 4
138		358
139	=item on_init $term	359	=item on_init $term
140		360
141	Called after a new terminal object has been initialized, but before	361	Called after a new terminal object has been initialized, but before
142	windows are created or the command gets run. Most methods are unsafe to	362	windows are created or the command gets run. Most methods are unsafe to
143	call or deliver senseless data, as terminal size and other characteristics	363	call or deliver senseless data, as terminal size and other characteristics
144	have not yet been determined. You can safely query and change resources,	364	have not yet been determined. You can safely query and change resources
145	though.	365	and options, though. For many purposes the C<on_start> hook is a better
		366	place.
		367
		368	=item on_start $term
		369
		370	Called at the very end of initialisation of a new terminal, just before
		371	trying to map (display) the toplevel and returning to the mainloop.
		372
		373	=item on_destroy $term
		374
		375	Called whenever something tries to destroy terminal, when the terminal is
		376	still fully functional (not for long, though).
146		377
147	=item on_reset $term	378	=item on_reset $term
148		379
149	Called after the screen is "reset" for any reason, such as resizing or	380	Called after the screen is "reset" for any reason, such as resizing or
150	control sequences. Here is where you can react on changes to size-related	381	control sequences. Here is where you can react on changes to size-related
151	variables.	382	variables.
152		383
153	=item on_start $term	384	=item on_child_start $term, $pid
154		385
155	Called at the very end of initialisation of a new terminal, just before	386	Called just after the child process has been C<fork>ed.
156	returning to the mainloop.	387
		388	=item on_child_exit $term, $status
		389
		390	Called just after the child process has exited. C<$status> is the status
		391	from C<waitpid>.
157		392
158	=item on_sel_make $term, $eventtime	393	=item on_sel_make $term, $eventtime
159		394
160	Called whenever a selection has been made by the user, but before the	395	Called whenever a selection has been made by the user, but before the
161	selection text is copied, so changes to the beginning, end or type of the	396	selection text is copied, so changes to the beginning, end or type of the
…		…
175	=item on_sel_extend $term	410	=item on_sel_extend $term
176		411
177	Called whenever the user tries to extend the selection (e.g. with a double	412	Called whenever the user tries to extend the selection (e.g. with a double
178	click) and is either supposed to return false (normal operation), or	413	click) and is either supposed to return false (normal operation), or
179	should extend the selection itelf and return true to suppress the built-in	414	should extend the selection itelf and return true to suppress the built-in
180	processing.	415	processing. This can happen multiple times, as long as the callback
		416	returns true, it will be called on every further click by the user and is
		417	supposed to enlarge the selection more and more, if possible.
181		418
182	See the F<selection> example extension.	419	See the F<selection> example extension.
183
184	=item on_focus_in $term
185
186	Called whenever the window gets the keyboard focus, before urxvt does
187	focus in processing.
188
189	=item on_focus_out $term
190
191	Called wheneever the window loses keyboard focus, before urxvt does focus
192	out processing.
193		420
194	=item on_view_change $term, $offset	421	=item on_view_change $term, $offset
195		422
196	Called whenever the view offset changes, i..e the user or program	423	Called whenever the view offset changes, i..e the user or program
197	scrolls. Offset C<0> means display the normal terminal, positive values	424	scrolls. Offset C<0> means display the normal terminal, positive values
…		…
204	than the scroll back buffer or the terminal.	431	than the scroll back buffer or the terminal.
205		432
206	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,	433	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
207	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total	434	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
208	number of lines that will be in the scrollback buffer.	435	number of lines that will be in the scrollback buffer.
209
210	=item on_tty_activity $term *NYI*
211
212	Called whenever the program(s) running in the urxvt window send output.
213		436
214	=item on_osc_seq $term, $string	437	=item on_osc_seq $term, $string
215		438
216	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =	439	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
217	operating system command) is processed. Cursor position and other state	440	operating system command) is processed. Cursor position and other state
…		…
230	can filter/change and output the text yourself by returning a true value	453	can filter/change and output the text yourself by returning a true value
231	and calling C<< $term->scr_add_lines >> yourself. Please note that this	454	and calling C<< $term->scr_add_lines >> yourself. Please note that this
232	might be very slow, however, as your hook is called for B<all> text being	455	might be very slow, however, as your hook is called for B<all> text being
233	output.	456	output.
234		457
		458	=item on_tt_write $term, $octets
		459
		460	Called whenever some data is written to the tty/pty and can be used to
		461	suppress or filter tty input.
		462
235	=item on_line_update $term, $row	463	=item on_line_update $term, $row
236		464
237	Called whenever a line was updated or changed. Can be used to filter	465	Called whenever a line was updated or changed. Can be used to filter
238	screen output (e.g. underline urls or other useless stuff). Only lines	466	screen output (e.g. underline urls or other useless stuff). Only lines
239	that are being shown will be filtered, and, due to performance reasons,	467	that are being shown will be filtered, and, due to performance reasons,
…		…
261		489
262	Called whenever the user presses a key combination that has a	490	Called whenever the user presses a key combination that has a
263	C<perl:string> action bound to it (see description of the B<keysym>	491	C<perl:string> action bound to it (see description of the B<keysym>
264	resource in the @@RXVT_NAME@@(1) manpage).	492	resource in the @@RXVT_NAME@@(1) manpage).
265		493
		494	=item on_x_event $term, $event
		495
		496	Called on every X event received on the vt window (and possibly other
		497	windows). Should only be used as a last resort. Most event structure
		498	members are not passed.
		499
		500	=item on_focus_in $term
		501
		502	Called whenever the window gets the keyboard focus, before rxvt-unicode
		503	does focus in processing.
		504
		505	=item on_focus_out $term
		506
		507	Called wheneever the window loses keyboard focus, before rxvt-unicode does
		508	focus out processing.
		509
		510	=item on_configure_notify $term, $event
		511
		512	=item on_property_notify $term, $event
		513
266	=item on_key_press $term, $event, $octets	514	=item on_key_press $term, $event, $keysym, $octets
267		515
268	=item on_key_release $term, $event	516	=item on_key_release $term, $event, $keysym
269		517
270	=item on_button_press $term, $event	518	=item on_button_press $term, $event
271		519
272	=item on_button_release $term, $event	520	=item on_button_release $term, $event
273		521
274	=item on_motion_notify $term, $event	522	=item on_motion_notify $term, $event
		523
		524	=item on_map_notify $term, $event
		525
		526	=item on_unmap_notify $term, $event
275		527
276	Called whenever the corresponding X event is received for the terminal If	528	Called whenever the corresponding X event is received for the terminal If
277	the hook returns true, then the even will be ignored by rxvt-unicode.	529	the hook returns true, then the even will be ignored by rxvt-unicode.
278		530
279	The event is a hash with most values as named by Xlib (see the XEvent	531	The event is a hash with most values as named by Xlib (see the XEvent
280	manpage), with the additional members C<row> and C<col>, which are the row	532	manpage), with the additional members C<row> and C<col>, which are the
281	and column under the mouse cursor.	533	(real, not screen-based) row and column under the mouse cursor.
282		534
283	C<on_key_press> additionally receives the string rxvt-unicode would	535	C<on_key_press> additionally receives the string rxvt-unicode would
284	output, if any, in locale-specific encoding.	536	output, if any, in locale-specific encoding.
285		537
286	subwindow.	538	subwindow.
287		539
		540	=item on_client_message $term, $event
		541
		542	=item on_wm_protocols $term, $event
		543
		544	=item on_wm_delete_window $term, $event
		545
		546	Called when various types of ClientMessage events are received (all with
		547	format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
		548
288	=back	549	=back
289		550
		551	=cut
		552
		553	package urxvt;
		554
		555	use utf8;
		556	use strict;
		557	use Carp ();
		558	use Scalar::Util ();
		559	use List::Util ();
		560
		561	our $VERSION = 1;
		562	our $TERM;
		563	our @TERM_INIT;
		564	our @TERM_EXT;
		565	our @HOOKNAME;
		566	our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
		567	our %OPTION;
		568
		569	our $LIBDIR;
		570	our $RESNAME;
		571	our $RESCLASS;
		572	our $RXVTNAME;
		573
		574	our $NOCHAR = chr 0xffff;
		575
290	=head2 Variables in the C<urxvt> Package	576	=head2 Variables in the C<urxvt> Package
291		577
292	=over 4	578	=over 4
293		579
		580	=item $urxvt::LIBDIR
		581
		582	The rxvt-unicode library directory, where, among other things, the perl
		583	modules and scripts are stored.
		584
		585	=item $urxvt::RESCLASS, $urxvt::RESCLASS
		586
		587	The resource class and name rxvt-unicode uses to look up X resources.
		588
		589	=item $urxvt::RXVTNAME
		590
		591	The basename of the installed binaries, usually C<urxvt>.
		592
294	=item $urxvt::TERM	593	=item $urxvt::TERM
295		594
296	The current terminal. Whenever a callback/Hook is bein executed, this	595	The current terminal. This variable stores the current C<urxvt::term>
297	variable stores the current C<urxvt::term> object.	596	object, whenever a callback/hook is executing.
		597
		598	=item @urxvt::TERM_INIT
		599
		600	All coderefs in this array will be called as methods of the next newly
		601	created C<urxvt::term> object (during the C<on_init> phase). The array
		602	gets cleared before the codereferences that were in it are being executed,
		603	so coderefs can push themselves onto it again if they so desire.
		604
		605	This complements to the perl-eval commandline option, but gets executed
		606	first.
		607
		608	=item @urxvt::TERM_EXT
		609
		610	Works similar to C<@TERM_INIT>, but contains perl package/class names, which
		611	get registered as normal extensions after calling the hooks in C<@TERM_INIT>
		612	but before other extensions. Gets cleared just like C<@TERM_INIT>.
298		613
299	=back	614	=back
300		615
301	=head2 Functions in the C<urxvt> Package	616	=head2 Functions in the C<urxvt> Package
302		617
303	=over 4	618	=over 4
304
305	=item $term = new urxvt [arg...]
306
307	Creates a new terminal, very similar as if you had started it with
308	C<system $binfile, arg...>. Croaks (and probably outputs an error message)
309	if the new instance couldn't be created. Returns C<undef> if the new
310	instance didn't initialise perl, and the terminal object otherwise. The
311	C<init> and C<start> hooks will be called during the call.
312		619
313	=item urxvt::fatal $errormessage	620	=item urxvt::fatal $errormessage
314		621
315	Fatally aborts execution with the given error message. Avoid at all	622	Fatally aborts execution with the given error message. Avoid at all
316	costs! The only time this is acceptable is when the terminal process	623	costs! The only time this is acceptable is when the terminal process
…		…
323	that calls this function.	630	that calls this function.
324		631
325	Using this function has the advantage that its output ends up in the	632	Using this function has the advantage that its output ends up in the
326	correct place, e.g. on stderr of the connecting urxvtc client.	633	correct place, e.g. on stderr of the connecting urxvtc client.
327		634
		635	Messages have a size limit of 1023 bytes currently.
		636
328	=item $time = urxvt::NOW	637	=item $time = urxvt::NOW
329		638
330	Returns the "current time" (as per the event loop).	639	Returns the "current time" (as per the event loop).
		640
		641	=item urxvt::CurrentTime
		642
		643	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
		644	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
		645	Button4Mask, Button5Mask, AnyModifier
		646
		647	=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
		648	ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
		649	PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
		650	Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
		651	KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
		652	ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
		653	FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
		654
		655	=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
		656	EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
		657	GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
		658	UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
		659	ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
		660	CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
		661	SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
		662
		663	Various constants for use in X calls and event processing.
331		664
332	=back	665	=back
333		666
334	=head2 RENDITION	667	=head2 RENDITION
335		668
…		…
362		695
363	=item $background = urxvt::GET_BASEBG $rend	696	=item $background = urxvt::GET_BASEBG $rend
364		697
365	Return the foreground/background colour index, respectively.	698	Return the foreground/background colour index, respectively.
366		699
367	=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)	700	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
368		701
369	=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)	702	=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
370		703
371	Replace the foreground/background colour in the rendition mask with the	704	Replace the foreground/background colour in the rendition mask with the
372	specified one.	705	specified one.
373		706
374	=item $value = urxvt::GET_CUSTOM ($rend)	707	=item $value = urxvt::GET_CUSTOM $rend
375		708
376	Return the "custom" value: Every rendition has 5 bits for use by	709	Return the "custom" value: Every rendition has 5 bits for use by
377	extensions. They can be set and changed as you like and are initially	710	extensions. They can be set and changed as you like and are initially
378	zero.	711	zero.
379		712
380	=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)	713	=item $rend = urxvt::SET_CUSTOM $rend, $new_value
381		714
382	Change the custom value.	715	Change the custom value.
383		716
384	=back	717	=back
385		718
386	=cut	719	=cut
387		720
388	package urxvt;
389
390	use strict;
391	use Scalar::Util ();
392
393	our $TERM;
394	our @HOOKNAME;
395	our $LIBDIR;
396
397	BEGIN {	721	BEGIN {
398	urxvt->bootstrap;
399
400	# overwrite perl's warn	722	# overwrite perl's warn
401	*CORE::GLOBAL::warn = sub {	723	*CORE::GLOBAL::warn = sub {
402	my $msg = join "", @_;	724	my $msg = join "", @_;
403	$msg .= "\n"	725	$msg .= "\n"
404	unless $msg =~ /\n$/;	726	unless $msg =~ /\n$/;
405	urxvt::warn ($msg);	727	urxvt::warn ($msg);
406	};	728	};
407	}	729	}
408		730
409	my @hook_count;	731	no warnings 'utf8';
		732
410	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};	733	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
411		734
412	sub verbose {	735	sub verbose {
413	my ($level, $msg) = @_;	736	my ($level, $msg) = @_;
414	warn "$msg\n" if $level <= $verbosity;	737	warn "$msg\n" if $level <= $verbosity;
415	}	738	}
416		739
417	# find on_xxx subs in the package and register them	740	my %extension_pkg;
418	# as hooks
419	sub register_package($) {
420	my ($pkg) = @_;
421
422	for my $htype (0.. $#HOOKNAME) {
423	my $name = $HOOKNAME[$htype];
424
425	my $ref = $pkg->can ("on_" . lc $name)
426	or next;
427
428	$TERM->{_hook}[$htype]{$pkg} = $ref;
429	$hook_count[$htype]++
430	or set_should_invoke $htype, 1;
431	}
432	}
433
434	my $script_pkg = "script0000";
435	my %script_pkg;
436		741
437	# load a single script into its own package, once only	742	# load a single script into its own package, once only
438	sub script_package($) {	743	sub extension_package($) {
439	my ($path) = @_;	744	my ($path) = @_;
440		745
441	$script_pkg{$path} ||= do {	746	$extension_pkg{$path} ||= do {
442	my $pkg = "urxvt::" . ($script_pkg++);	747	$path =~ /([^\/\\]+)$/;
		748	my $pkg = $1;
		749	$pkg =~ s/[^[:word:]]/_/g;
		750	$pkg = "urxvt::ext::$pkg";
443		751
444	verbose 3, "loading script '$path' into package '$pkg'";	752	verbose 3, "loading extension '$path' into package '$pkg'";
445		753
446	open my $fh, "<:raw", $path	754	open my $fh, "<:raw", $path
447	or die "$path: $!";	755	or die "$path: $!";
448		756
449	my $source = "package $pkg; use strict; use utf8;\n"	757	my $source =
		758	"package $pkg; use strict; use utf8; no warnings 'utf8';\n"
450	. "#line 1 \"$path\"\n{\n"	759	. "#line 1 \"$path\"\n{\n"
451	. (do { local $/; <$fh> })	760	. (do { local $/; <$fh> })
452	. "\n};\n1";	761	. "\n};\n1";
453		762
		763	eval $source
454	eval $source or die "$path: $@";	764	or die "$path: $@";
455		765
456	$pkg	766	$pkg
457	}	767	}
458	}	768	}
459		769
…		…
464	local $TERM = shift;	774	local $TERM = shift;
465	my $htype = shift;	775	my $htype = shift;
466		776
467	if ($htype == 0) { # INIT	777	if ($htype == 0) { # INIT
468	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");	778	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
		779
		780	my %ext_arg;
469		781
		782	{
		783	my @init = @TERM_INIT;
		784	@TERM_INIT = ();
		785	$_->($TERM) for @init;
		786	my @pkg = @TERM_EXT;
		787	@TERM_EXT = ();
		788	$TERM->register_package ($_) for @pkg;
		789	}
		790
470	for my $ext (map { split /:/, $TERM->resource ("perl_ext_$_") } 1, 2) {	791	for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
		792	if ($_ eq "default") {
		793	$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
		794	} elsif (/^-(.*)$/) {
		795	delete $ext_arg{$1};
		796	} elsif (/^([^<]+)<(.*)>$/) {
		797	push @{ $ext_arg{$1} }, $2;
		798	} else {
		799	$ext_arg{$_} ||= [];
		800	}
		801	}
		802
		803	while (my ($ext, $argv) = each %ext_arg) {
471	my @files = grep -f $_, map "$_/$ext", @dirs;	804	my @files = grep -f $_, map "$_/$ext", @dirs;
472		805
473	if (@files) {	806	if (@files) {
474	register_package script_package $files[0];	807	$TERM->register_package (extension_package $files[0], $argv);
475	} else {	808	} else {
476	warn "perl extension '$ext' not found in perl library search path\n";	809	warn "perl extension '$ext' not found in perl library search path\n";
477	}	810	}
478	}	811	}
		812
		813	eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval");
		814	warn $@ if $@;
479	}	815	}
480		816
481	$retval = undef;	817	$retval = undef;
482		818
483	if (my $cb = $TERM->{_hook}[$htype]) {	819	if (my $cb = $TERM->{_hook}[$htype]) {
…		…
485	if $verbosity >= 10;	821	if $verbosity >= 10;
486		822
487	keys %$cb;	823	keys %$cb;
488		824
489	while (my ($pkg, $cb) = each %$cb) {	825	while (my ($pkg, $cb) = each %$cb) {
490	$retval = $cb->(	826	my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
491	$TERM->{_pkg}{$pkg} ||= do {	827	$retval ||= $retval_;
492	my $proxy = bless { }, urxvt::term::proxy::;
493	Scalar::Util::weaken ($proxy->{term} = $TERM);
494	$proxy
495	},
496	@_,
497	) and last;
498	}
499	}
500		828
501	if ($htype == 1) { # DESTROY	829	if ($@) {
502	# remove hooks if unused	830	$TERM->ungrab; # better to lose the grab than the session
503	if (my $hook = $TERM->{_hook}) {	831	warn $@;
504	for my $htype (0..$#$hook) {
505	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
506	or set_should_invoke $htype, 0;
507	}	832	}
508	}	833	}
509		834
		835	verbose 11, "$HOOKNAME[$htype] returning <$retval>"
		836	if $verbosity >= 11;
		837	}
		838
		839	if ($htype == 1) { # DESTROY
510	# clear package objects	840	# clear package objects
511	%$_ = () for values %{ $TERM->{_pkg} };	841	%$_ = () for values %{ $TERM->{_pkg} };
512		842
513	# clear package	843	# clear package
514	%$TERM = ();	844	%$TERM = ();
515	}	845	}
516		846
517	$retval	847	$retval
518	}	848	}
519		849
520	sub urxvt::term::proxy::AUTOLOAD {	850	# urxvt::term::extension
521	$urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/	851
		852	package urxvt::term::extension;
		853
		854	sub enable {
		855	my ($self, %hook) = @_;
		856	my $pkg = $self->{_pkg};
		857
		858	while (my ($name, $cb) = each %hook) {
		859	my $htype = $HOOKTYPE{uc $name};
		860	defined $htype
		861	or Carp::croak "unsupported hook type '$name'";
		862
		863	$self->set_should_invoke ($htype, +1)
		864	unless exists $self->{term}{_hook}[$htype]{$pkg};
		865
		866	$self->{term}{_hook}[$htype]{$pkg} = $cb;
		867	}
		868	}
		869
		870	sub disable {
		871	my ($self, @hook) = @_;
		872	my $pkg = $self->{_pkg};
		873
		874	for my $name (@hook) {
		875	my $htype = $HOOKTYPE{uc $name};
		876	defined $htype
		877	or Carp::croak "unsupported hook type '$name'";
		878
		879	$self->set_should_invoke ($htype, -1)
		880	if delete $self->{term}{_hook}[$htype]{$pkg};
		881	}
		882	}
		883
		884	our $AUTOLOAD;
		885
		886	sub AUTOLOAD {
		887	$AUTOLOAD =~ /:([^:]+)$/
522	or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";	888	or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
523		889
524	eval qq{	890	eval qq{
525	sub $urxvt::term::proxy::AUTOLOAD {	891	sub $AUTOLOAD {
526	my \$proxy = shift;	892	my \$proxy = shift;
527	\$proxy->{term}->$1 (\@_)	893	\$proxy->{term}->$1 (\@_)
528	}	894	}
529	1	895	1
530	} or die "FATAL: unable to compile method forwarder: $@";	896	} or die "FATAL: unable to compile method forwarder: $@";
531		897
532	goto &$urxvt::term::proxy::AUTOLOAD;	898	goto &$AUTOLOAD;
533	}	899	}
		900
		901	sub DESTROY {
		902	# nop
		903	}
		904
		905	# urxvt::destroy_hook
		906
		907	sub urxvt::destroy_hook::DESTROY {
		908	${$_[0]}->();
		909	}
		910
		911	sub urxvt::destroy_hook(&) {
		912	bless \shift, urxvt::destroy_hook::
		913	}
		914
		915	package urxvt::anyevent;
		916
		917	=head2 The C<urxvt::anyevent> Class
		918
		919	The sole purpose of this class is to deliver an interface to the
		920	C<AnyEvent> module - any module using it will work inside urxvt without
		921	further programming. The only exception is that you cannot wait on
		922	condition variables, but non-blocking condvar use is ok. What this means
		923	is that you cannot use blocking APIs, but the non-blocking variant should
		924	work.
		925
		926	=cut
		927
		928	our $VERSION = 1;
		929
		930	$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
		931	push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
		932
		933	sub timer {
		934	my ($class, %arg) = @_;
		935
		936	my $cb = $arg{cb};
		937
		938	urxvt::timer
		939	->new
		940	->start (urxvt::NOW + $arg{after})
		941	->cb (sub {
		942	$_[0]->stop; # need to cancel manually
		943	$cb->();
		944	})
		945	}
		946
		947	sub io {
		948	my ($class, %arg) = @_;
		949
		950	my $cb = $arg{cb};
		951
		952	bless [$arg{fh}, urxvt::iow
		953	->new
		954	->fd (fileno $arg{fh})
		955	->events (($arg{poll} =~ /r/ ? 1 : 0)
		956	| ($arg{poll} =~ /w/ ? 2 : 0))
		957	->start
		958	->cb (sub {
		959	$cb->(($_[1] & 1 ? 'r' : '')
		960	. ($_[1] & 2 ? 'w' : ''));
		961	})],
		962	urxvt::anyevent::
		963	}
		964
		965	sub DESTROY {
		966	$_[0][1]->stop;
		967	}
		968
		969	sub condvar {
		970	bless \my $flag, urxvt::anyevent::condvar::
		971	}
		972
		973	sub urxvt::anyevent::condvar::broadcast {
		974	${$_[0]}++;
		975	}
		976
		977	sub urxvt::anyevent::condvar::wait {
		978	unless (${$_[0]}) {
		979	Carp::croak "AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API";
		980	}
		981	}
		982
		983	package urxvt::term;
534		984
535	=head2 The C<urxvt::term> Class	985	=head2 The C<urxvt::term> Class
536		986
537	=over 4	987	=over 4
538		988
		989	=cut
		990
		991	# find on_xxx subs in the package and register them
		992	# as hooks
		993	sub register_package {
		994	my ($self, $pkg, $argv) = @_;
		995
		996	no strict 'refs';
		997
		998	urxvt::verbose 6, "register package $pkg to $self";
		999
		1000	@{"$pkg\::ISA"} = urxvt::term::extension::;
		1001
		1002	my $proxy = bless {
		1003	_pkg => $pkg,
		1004	argv => $argv,
		1005	}, $pkg;
		1006	Scalar::Util::weaken ($proxy->{term} = $self);
		1007
		1008	$self->{_pkg}{$pkg} = $proxy;
		1009
		1010	for my $name (@HOOKNAME) {
		1011	if (my $ref = $pkg->can ("on_" . lc $name)) {
		1012	$proxy->enable ($name => $ref);
		1013	}
		1014	}
		1015	}
		1016
		1017	=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
		1018
		1019	Creates a new terminal, very similar as if you had started it with system
		1020	C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
		1021	hash which defines the environment of the new terminal.
		1022
		1023	Croaks (and probably outputs an error message) if the new instance
		1024	couldn't be created. Returns C<undef> if the new instance didn't
		1025	initialise perl, and the terminal object otherwise. The C<init> and
		1026	C<start> hooks will be called during this call.
		1027
		1028	=cut
		1029
		1030	sub new {
		1031	my ($class, $env, @args) = @_;
		1032
		1033	_new ([ map "$_=$env->{$_}", keys %$env ], @args);
		1034	}
		1035
539	=item $term->destroy	1036	=item $term->destroy
540		1037
541	Destroy the terminal object (close the window, free resources etc.).	1038	Destroy the terminal object (close the window, free resources
		1039	etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
		1040	watchers (timers, io watchers) are still active.
		1041
		1042	=item $term->exec_async ($cmd[, @args])
		1043
		1044	Works like the combination of the C<fork>/C<exec> builtins, which executes
		1045	("starts") programs in the background. This function takes care of setting
		1046	the user environment before exec'ing the command (e.g. C<PATH>) and should
		1047	be preferred over explicit calls to C<exec> or C<system>.
		1048
		1049	Returns the pid of the subprocess or C<undef> on error.
		1050
		1051	=cut
		1052
		1053	sub exec_async {
		1054	my $self = shift;
		1055
		1056	my $pid = fork;
		1057
		1058	return $pid
		1059	if !defined $pid or $pid;
		1060
		1061	%ENV = %{ $self->env };
		1062
		1063	exec @_;
		1064	urxvt::_exit 255;
		1065	}
		1066
		1067	=item $isset = $term->option ($optval[, $set])
		1068
		1069	Returns true if the option specified by C<$optval> is enabled, and
		1070	optionally change it. All option values are stored by name in the hash
		1071	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
		1072
		1073	Here is a a likely non-exhaustive list of option names, please see the
		1074	source file F</src/optinc.h> to see the actual list:
		1075
		1076	borderLess console cursorBlink cursorUnderline hold iconic insecure
		1077	intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
		1078	override-redirect pastableTabs pointerBlank reverseVideo scrollBar
		1079	scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
		1080	scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
		1081	transparent tripleclickwords utmpInhibit visualBell
542		1082
543	=item $value = $term->resource ($name[, $newval])	1083	=item $value = $term->resource ($name[, $newval])
544		1084
545	Returns the current resource value associated with a given name and	1085	Returns the current resource value associated with a given name and
546	optionally sets a new value. Setting values is most useful in the C<init>	1086	optionally sets a new value. Setting values is most useful in the C<init>
…		…
556		1096
557	Please note that resource strings will currently only be freed when the	1097	Please note that resource strings will currently only be freed when the
558	terminal is destroyed, so changing options frequently will eat memory.	1098	terminal is destroyed, so changing options frequently will eat memory.
559		1099
560	Here is a a likely non-exhaustive list of resource names, not all of which	1100	Here is a a likely non-exhaustive list of resource names, not all of which
561	are supported in every build, please see the source to see the actual	1101	are supported in every build, please see the source file F</src/rsinc.h>
562	list:	1102	to see the actual list:
563		1103
564	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont	1104	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
565	borderLess color cursorBlink cursorUnderline cutchars delete_key	1105	borderLess color cursorBlink cursorUnderline cutchars delete_key
566	display_name embed ext_bwidth fade font geometry hold iconName	1106	display_name embed ext_bwidth fade font geometry hold iconName
567	imFont imLocale inputMethod insecure int_bwidth intensityStyles	1107	imFont imLocale inputMethod insecure int_bwidth intensityStyles
568	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier	1108	italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
569	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2	1109	mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
570	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd	1110	perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
571	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating	1111	preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
572	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput	1112	scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
573	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle	1113	scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
574	shade term_name title transparent transparent_all tripleclickwords	1114	secondaryScreen secondaryScroll selectstyle shade term_name title
575	utmpInhibit visualBell	1115	transient_for transparent transparent_all tripleclickwords utmpInhibit
		1116	visualBell
576		1117
577	=cut	1118	=cut
578		1119
579	sub urxvt::term::resource($$;$) {	1120	sub resource($$;$) {
580	my ($self, $name) = (shift, shift);	1121	my ($self, $name) = (shift, shift);
581	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);	1122	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
582	goto &urxvt::term::_resource;	1123	&urxvt::term::_resource
583	}	1124	}
		1125
		1126	=item $value = $term->x_resource ($pattern)
		1127
		1128	Returns the X-Resource for the given pattern, excluding the program or
		1129	class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
		1130	same value as used by this instance of rxvt-unicode. Returns C<undef> if no
		1131	resource with that pattern exists.
		1132
		1133	This method should only be called during the C<on_start> hook, as there is
		1134	only one resource database per display, and later invocations might return
		1135	the wrong resources.
		1136
		1137	=item $success = $term->parse_keysym ($keysym_spec, $command_string)
		1138
		1139	Adds a keymap translation exactly as specified via a resource. See the
		1140	C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
584		1141
585	=item $rend = $term->rstyle ([$new_rstyle])	1142	=item $rend = $term->rstyle ([$new_rstyle])
586		1143
587	Return and optionally change the current rendition. Text that is output by	1144	Return and optionally change the current rendition. Text that is output by
588	the terminal application will use this style.	1145	the terminal application will use this style.
…		…
599	=item ($row, $col) = $term->selection_end ([$row, $col])	1156	=item ($row, $col) = $term->selection_end ([$row, $col])
600		1157
601	Return the current values of the selection mark, begin or end positions,	1158	Return the current values of the selection mark, begin or end positions,
602	and optionally set them to new values.	1159	and optionally set them to new values.
603		1160
		1161	=item $term->selection_make ($eventtime[, $rectangular])
		1162
		1163	Tries to make a selection as set by C<selection_beg> and
		1164	C<selection_end>. If C<$rectangular> is true (default: false), a
		1165	rectangular selection will be made. This is the prefered function to make
		1166	a selection.
		1167
604	=item $success = $term->selection_grab ($eventtime)	1168	=item $success = $term->selection_grab ($eventtime)
605		1169
606	Try to request the primary selection from the server (for example, as set	1170	Try to request the primary selection text from the server (for example, as
607	by the next method).	1171	set by the next method). No visual feedback will be given. This function
		1172	is mostly useful from within C<on_sel_grab> hooks.
608		1173
609	=item $oldtext = $term->selection ([$newtext])	1174	=item $oldtext = $term->selection ([$newtext])
610		1175
611	Return the current selection text and optionally replace it by C<$newtext>.	1176	Return the current selection text and optionally replace it by C<$newtext>.
612		1177
613	#=item $term->overlay ($x, $y, $text)	1178	=item $term->overlay_simple ($x, $y, $text)
614	#	1179
615	#Create a simple multi-line overlay box. See the next method for details.	1180	Create a simple multi-line overlay box. See the next method for details.
616	#	1181
617	#=cut	1182	=cut
618	#	1183
619	#sub urxvt::term::scr_overlay {	1184	sub overlay_simple {
620	# my ($self, $x, $y, $text) = @_;	1185	my ($self, $x, $y, $text) = @_;
621	#	1186
622	# my @lines = split /\n/, $text;	1187	my @lines = split /\n/, $text;
623	#	1188
624	# my $w = 0;	1189	my $w = List::Util::max map $self->strwidth ($_), @lines;
625	# for (map $self->strwidth ($_), @lines) {	1190
626	# $w = $_ if $w < $_;
627	# }
628	#
629	# $self->scr_overlay_new ($x, $y, $w, scalar @lines);	1191	my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
630	# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;	1192	$overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
631	#}	1193
		1194	$overlay
		1195	}
632		1196
633	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])	1197	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
634		1198
635	Create a new (empty) overlay at the given position with the given	1199	Create a new (empty) overlay at the given position with the given
636	width/height. C<$rstyle> defines the initial rendition style	1200	width/height. C<$rstyle> defines the initial rendition style
…		…
663		1227
664	If hidden, display the overlay again.	1228	If hidden, display the overlay again.
665		1229
666	=back	1230	=back
667		1231
		1232	=item $popup = $term->popup ($event)
		1233
		1234	Creates a new C<urxvt::popup> object that implements a popup menu. The
		1235	C<$event> I<must> be the event causing the menu to pop up (a button event,
		1236	currently).
		1237
		1238	=cut
		1239
		1240	sub popup {
		1241	my ($self, $event) = @_;
		1242
		1243	$self->grab ($event->{time}, 1)
		1244	or return;
		1245
		1246	my $popup = bless {
		1247	term => $self,
		1248	event => $event,
		1249	}, urxvt::popup::;
		1250
		1251	Scalar::Util::weaken $popup->{term};
		1252
		1253	$self->{_destroy}{$popup} = urxvt::destroy_hook { $popup->{popup}->destroy };
		1254	Scalar::Util::weaken $self->{_destroy}{$popup};
		1255
		1256	$popup
		1257	}
		1258
668	=item $cellwidth = $term->strwidth ($string)	1259	=item $cellwidth = $term->strwidth ($string)
669		1260
670	Returns the number of screen-cells this string would need. Correctly	1261	Returns the number of screen-cells this string would need. Correctly
671	accounts for wide and combining characters.	1262	accounts for wide and combining characters.
672		1263
…		…
675	Convert the given text string into the corresponding locale encoding.	1266	Convert the given text string into the corresponding locale encoding.
676		1267
677	=item $string = $term->locale_decode ($octets)	1268	=item $string = $term->locale_decode ($octets)
678		1269
679	Convert the given locale-encoded octets into a perl string.	1270	Convert the given locale-encoded octets into a perl string.
		1271
		1272	=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
		1273
		1274	XORs the rendition values in the given span with the provided value
		1275	(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
		1276	refresh hooks to provide effects similar to the selection.
		1277
		1278	=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
		1279
		1280	Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
		1281	whitespace will additionally be xored with the C<$rstyle2>, which defaults
		1282	to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
		1283	it instead. Both styles I<MUST NOT> contain font styles.
		1284
		1285	=item $term->scr_bell
		1286
		1287	Ring the bell!
680		1288
681	=item $term->scr_add_lines ($string)	1289	=item $term->scr_add_lines ($string)
682		1290
683	Write the given text string to the screen, as if output by the application	1291	Write the given text string to the screen, as if output by the application
684	running inside the terminal. It may not contain command sequences (escape	1292	running inside the terminal. It may not contain command sequences (escape
…		…
687		1295
688	Normally its not a good idea to use this function, as programs might be	1296	Normally its not a good idea to use this function, as programs might be
689	confused by changes in cursor position or scrolling. Its useful inside a	1297	confused by changes in cursor position or scrolling. Its useful inside a
690	C<on_add_lines> hook, though.	1298	C<on_add_lines> hook, though.
691		1299
		1300	=item $term->scr_change_screen ($screen)
		1301
		1302	Switch to given screen - 0 primary, 1 secondary.
		1303
692	=item $term->cmd_parse ($octets)	1304	=item $term->cmd_parse ($octets)
693		1305
694	Similar to C<scr_add_lines>, but the argument must be in the	1306	Similar to C<scr_add_lines>, but the argument must be in the
695	locale-specific encoding of the terminal and can contain command sequences	1307	locale-specific encoding of the terminal and can contain command sequences
696	(escape codes) that will be interpreted.	1308	(escape codes) that will be interpreted.
…		…
699		1311
700	Write the octets given in C<$data> to the tty (i.e. as program input). To	1312	Write the octets given in C<$data> to the tty (i.e. as program input). To
701	pass characters instead of octets, you should convert your strings first	1313	pass characters instead of octets, you should convert your strings first
702	to the locale-specific encoding using C<< $term->locale_encode >>.	1314	to the locale-specific encoding using C<< $term->locale_encode >>.
703		1315
		1316	=item $old_events = $term->pty_ev_events ([$new_events])
		1317
		1318	Replaces the event mask of the pty watcher by the given event mask. Can
		1319	be used to suppress input and output handling to the pty/tty. See the
		1320	description of C<< urxvt::timer->events >>. Make sure to always restore
		1321	the previous value.
		1322
		1323	=item $fd = $term->pty_fd
		1324
		1325	Returns the master file descriptor for the pty in use, or C<-1> if no pty
		1326	is used.
		1327
704	=item $windowid = $term->parent	1328	=item $windowid = $term->parent
705		1329
706	Return the window id of the toplevel window.	1330	Return the window id of the toplevel window.
707		1331
708	=item $windowid = $term->vt	1332	=item $windowid = $term->vt
709		1333
710	Return the window id of the terminal window.	1334	Return the window id of the terminal window.
711		1335
		1336	=item $term->vt_emask_add ($x_event_mask)
		1337
		1338	Adds the specified events to the vt event mask. Useful e.g. when you want
		1339	to receive pointer events all the times:
		1340
		1341	$term->vt_emask_add (urxvt::PointerMotionMask);
		1342
712	=item $window_width = $term->width	1343	=item $window_width = $term->width
713		1344
714	=item $window_height = $term->height	1345	=item $window_height = $term->height
715		1346
716	=item $font_width = $term->fwidth	1347	=item $font_width = $term->fwidth
…		…
729		1360
730	=item $max_scrollback = $term->saveLines	1361	=item $max_scrollback = $term->saveLines
731		1362
732	=item $nrow_plus_saveLines = $term->total_rows	1363	=item $nrow_plus_saveLines = $term->total_rows
733		1364
734	=item $lines_in_scrollback = $term->nsaved	1365	=item $topmost_scrollback_row = $term->top_row
735		1366
736	Return various integers describing terminal characteristics.	1367	Return various integers describing terminal characteristics.
737		1368
		1369	=item $x_display = $term->display_id
		1370
		1371	Return the DISPLAY used by rxvt-unicode.
		1372
		1373	=item $lc_ctype = $term->locale
		1374
		1375	Returns the LC_CTYPE category string used by this rxvt-unicode.
		1376
		1377	=item $env = $term->env
		1378
		1379	Returns a copy of the environment in effect for the terminal as a hashref
		1380	similar to C<\%ENV>.
		1381
		1382	=cut
		1383
		1384	sub env {
		1385	if (my $env = $_[0]->_env) {
		1386	+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), @$env }
		1387	} else {
		1388	+{ %ENV }
		1389	}
		1390	}
		1391
		1392	=item $modifiermask = $term->ModLevel3Mask
		1393
		1394	=item $modifiermask = $term->ModMetaMask
		1395
		1396	=item $modifiermask = $term->ModNumLockMask
		1397
		1398	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
		1399	AltGr), the meta key (often Alt) and the num lock key, if applicable.
		1400
		1401	=item $screen = $term->current_screen
		1402
		1403	Returns the currently displayed screen (0 primary, 1 secondary).
		1404
		1405	=item $cursor_is_hidden = $term->hidden_cursor
		1406
		1407	Returns wether the cursor is currently hidden or not.
		1408
738	=item $view_start = $term->view_start ([$newvalue])	1409	=item $view_start = $term->view_start ([$newvalue])
739		1410
740	Returns the negative row number of the topmost line. Minimum value is	1411	Returns the row number of the topmost displayed line. Maximum value is
741	C<0>, which displays the normal terminal contents. Larger values scroll	1412	C<0>, which displays the normal terminal contents. Lower values scroll
742	this many lines into the scrollback buffer.	1413	this many lines into the scrollback buffer.
743		1414
744	=item $term->want_refresh	1415	=item $term->want_refresh
745		1416
746	Requests a screen refresh. At the next opportunity, rxvt-unicode will	1417	Requests a screen refresh. At the next opportunity, rxvt-unicode will
…		…
761	line, starting at column C<$start_col> (default C<0>), which is useful	1432	line, starting at column C<$start_col> (default C<0>), which is useful
762	to replace only parts of a line. The font index in the rendition will	1433	to replace only parts of a line. The font index in the rendition will
763	automatically be updated.	1434	automatically be updated.
764		1435
765	C<$text> is in a special encoding: tabs and wide characters that use more	1436	C<$text> is in a special encoding: tabs and wide characters that use more
766	than one cell when displayed are padded with urxvt::NOCHAR characters	1437	than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
767	(C<chr 65535>). Characters with combining characters and other characters	1438	characters. Characters with combining characters and other characters that
768	that do not fit into the normal tetx encoding will be replaced with	1439	do not fit into the normal tetx encoding will be replaced with characters
769	characters in the private use area.	1440	in the private use area.
770		1441
771	You have to obey this encoding when changing text. The advantage is	1442	You have to obey this encoding when changing text. The advantage is
772	that C<substr> and similar functions work on screen cells and not on	1443	that C<substr> and similar functions work on screen cells and not on
773	characters.	1444	characters.
774		1445
…		…
825	Return the row number of the first/last row of the line, respectively.	1496	Return the row number of the first/last row of the line, respectively.
826		1497
827	=item $offset = $line->offset_of ($row, $col)	1498	=item $offset = $line->offset_of ($row, $col)
828		1499
829	Returns the character offset of the given row|col pair within the logical	1500	Returns the character offset of the given row|col pair within the logical
830	line.	1501	line. Works for rows outside the line, too, and returns corresponding
		1502	offsets outside the string.
831		1503
832	=item ($row, $col) = $line->coord_of ($offset)	1504	=item ($row, $col) = $line->coord_of ($offset)
833		1505
834	Translates a string offset into terminal coordinates again.	1506	Translates a string offset into terminal coordinates again.
835		1507
836	=back	1508	=back
837		1509
838	=cut	1510	=cut
839		1511
840	sub urxvt::term::line {	1512	sub line {
841	my ($self, $row) = @_;	1513	my ($self, $row) = @_;
842		1514
843	my $maxrow = $self->nrow - 1;	1515	my $maxrow = $self->nrow - 1;
844		1516
845	my ($beg, $end) = ($row, $row);	1517	my ($beg, $end) = ($row, $row);
…		…
909	$offset / $self->{ncol} + $self->{beg},	1581	$offset / $self->{ncol} + $self->{beg},
910	$offset % $self->{ncol}	1582	$offset % $self->{ncol}
911	)	1583	)
912	}	1584	}
913		1585
914	=item ($row, $col) = $line->coord_of ($offset)
915	=item $text = $term->special_encode $string	1586	=item $text = $term->special_encode $string
916		1587
917	Converts a perl string into the special encoding used by rxvt-unicode,	1588	Converts a perl string into the special encoding used by rxvt-unicode,
918	where one character corresponds to one screen cell. See	1589	where one character corresponds to one screen cell. See
919	C<< $term->ROW_t >> for details.	1590	C<< $term->ROW_t >> for details.
…		…
921	=item $string = $term->special_decode $text	1592	=item $string = $term->special_decode $text
922		1593
923	Converts rxvt-unicodes text reprsentation into a perl string. See	1594	Converts rxvt-unicodes text reprsentation into a perl string. See
924	C<< $term->ROW_t >> for details.	1595	C<< $term->ROW_t >> for details.
925		1596
		1597	=item $success = $term->grab_button ($button, $modifiermask)
		1598
		1599	Registers a synchronous button grab. See the XGrabButton manpage.
		1600
		1601	=item $success = $term->grab ($eventtime[, $sync])
		1602
		1603	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
		1604	synchronous (C<$sync> is true). Also remembers the grab timestampe.
		1605
		1606	=item $term->allow_events_async
		1607
		1608	Calls XAllowEvents with AsyncBoth for the most recent grab.
		1609
		1610	=item $term->allow_events_sync
		1611
		1612	Calls XAllowEvents with SyncBoth for the most recent grab.
		1613
		1614	=item $term->allow_events_replay
		1615
		1616	Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
		1617	recent grab.
		1618
		1619	=item $term->ungrab
		1620
		1621	Calls XUngrab for the most recent grab. Is called automatically on
		1622	evaluation errors, as it is better to lose the grab in the error case as
		1623	the session.
		1624
		1625	=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
		1626
		1627	=item $atom_name = $term->XGetAtomName ($atom)
		1628
		1629	=item @atoms = $term->XListProperties ($window)
		1630
		1631	=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
		1632
		1633	=item $term->XChangeWindowProperty ($window, $property, $type, $format, $octets)
		1634
		1635	=item $term->XDeleteProperty ($window, $property)
		1636
		1637	=item $window = $term->DefaultRootWindow
		1638
		1639	=item $term->XReparentWindow ($window, $parent, [$x, $y])
		1640
		1641	=item $term->XMapWindow ($window)
		1642
		1643	=item $term->XUnmapWindow ($window)
		1644
		1645	=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
		1646
		1647	=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
		1648
		1649	=item $term->XChangeInput ($window, $add_events[, $del_events])
		1650
		1651	Various X or X-related functions. The C<$term> object only serves as
		1652	the source of the display, otherwise those functions map more-or-less
		1653	directory onto the X functions of the same name.
		1654
926	=back	1655	=back
		1656
		1657	=cut
		1658
		1659	package urxvt::popup;
		1660
		1661	=head2 The C<urxvt::popup> Class
		1662
		1663	=over 4
		1664
		1665	=cut
		1666
		1667	sub add_item {
		1668	my ($self, $item) = @_;
		1669
		1670	$item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal};
		1671	$item->{rend}{hover} = "\x1b[0;30;46m" unless exists $item->{rend}{hover};
		1672	$item->{rend}{active} = "\x1b[m" unless exists $item->{rend}{active};
		1673
		1674	$item->{render} ||= sub { $_[0]{text} };
		1675
		1676	push @{ $self->{item} }, $item;
		1677	}
		1678
		1679	=item $popup->add_title ($title)
		1680
		1681	Adds a non-clickable title to the popup.
		1682
		1683	=cut
		1684
		1685	sub add_title {
		1686	my ($self, $title) = @_;
		1687
		1688	$self->add_item ({
		1689	rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
		1690	text => $title,
		1691	activate => sub { },
		1692	});
		1693	}
		1694
		1695	=item $popup->add_separator ([$sepchr])
		1696
		1697	Creates a separator, optionally using the character given as C<$sepchr>.
		1698
		1699	=cut
		1700
		1701	sub add_separator {
		1702	my ($self, $sep) = @_;
		1703
		1704	$sep ||= "=";
		1705
		1706	$self->add_item ({
		1707	rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
		1708	text => "",
		1709	render => sub { $sep x $self->{term}->ncol },
		1710	activate => sub { },
		1711	});
		1712	}
		1713
		1714	=item $popup->add_button ($text, $cb)
		1715
		1716	Adds a clickable button to the popup. C<$cb> is called whenever it is
		1717	selected.
		1718
		1719	=cut
		1720
		1721	sub add_button {
		1722	my ($self, $text, $cb) = @_;
		1723
		1724	$self->add_item ({ type => "button", text => $text, activate => $cb});
		1725	}
		1726
		1727	=item $popup->add_toggle ($text, $cb, $initial_value)
		1728
		1729	Adds a toggle/checkbox item to the popup. Teh callback gets called
		1730	whenever it gets toggled, with a boolean indicating its value as its first
		1731	argument.
		1732
		1733	=cut
		1734
		1735	sub add_toggle {
		1736	my ($self, $text, $cb, $value) = @_;
		1737
		1738	my $item; $item = {
		1739	type => "button",
		1740	text => " $text",
		1741	value => $value,
		1742	render => sub { ($_[0]{value} ? "* " : " ") . $text },
		1743	activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
		1744	};
		1745
		1746	$self->add_item ($item);
		1747	}
		1748
		1749	=item $popup->show
		1750
		1751	Displays the popup (which is initially hidden).
		1752
		1753	=cut
		1754
		1755	sub show {
		1756	my ($self) = @_;
		1757
		1758	local $urxvt::popup::self = $self;
		1759
		1760	my $env = $self->{term}->env;
		1761	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
		1762	delete $env->{LC_ALL};
		1763	$env->{LC_CTYPE} = $self->{term}->locale;
		1764
		1765	urxvt::term->new ($env, "popup",
		1766	"--perl-lib" => "", "--perl-ext-common" => "",
		1767	"-pty-fd" => -1, "-sl" => 0,
		1768	"-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
		1769	"--transient-for" => $self->{term}->parent,
		1770	"-display" => $self->{term}->display_id,
		1771	"-pe" => "urxvt-popup")
		1772	or die "unable to create popup window\n";
		1773	}
		1774
		1775	sub DESTROY {
		1776	my ($self) = @_;
		1777
		1778	delete $self->{term}{_destroy}{$self};
		1779	$self->{term}->ungrab;
		1780	}
		1781
		1782	=back
		1783
		1784	=cut
		1785
		1786	package urxvt::watcher;
		1787
		1788	@urxvt::timer::ISA = __PACKAGE__;
		1789	@urxvt::iow::ISA = __PACKAGE__;
		1790	@urxvt::pw::ISA = __PACKAGE__;
		1791	@urxvt::iw::ISA = __PACKAGE__;
927		1792
928	=head2 The C<urxvt::timer> Class	1793	=head2 The C<urxvt::timer> Class
929		1794
930	This class implements timer watchers/events. Time is represented as a	1795	This class implements timer watchers/events. Time is represented as a
931	fractional number of seconds since the epoch. Example:	1796	fractional number of seconds since the epoch. Example:
…		…
970		1835
971	=item $timer = $timer->start ($tstamp)	1836	=item $timer = $timer->start ($tstamp)
972		1837
973	Set the event trigger time to C<$tstamp> and start the timer.	1838	Set the event trigger time to C<$tstamp> and start the timer.
974		1839
		1840	=item $timer = $timer->after ($delay)
		1841
		1842	Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
		1843
975	=item $timer = $timer->stop	1844	=item $timer = $timer->stop
976		1845
977	Stop the timer.	1846	Stop the timer.
978		1847
979	=back	1848	=back
…		…
984		1853
985	$term->{socket} = ...	1854	$term->{socket} = ...
986	$term->{iow} = urxvt::iow	1855	$term->{iow} = urxvt::iow
987	->new	1856	->new
988	->fd (fileno $term->{socket})	1857	->fd (fileno $term->{socket})
989	->events (1) # wait for read data	1858	->events (urxvt::EVENT_READ)
990	->start	1859	->start
991	->cb (sub {	1860	->cb (sub {
992	my ($iow, $revents) = @_;	1861	my ($iow, $revents) = @_;
993	# $revents must be 1 here, no need to check	1862	# $revents must be 1 here, no need to check
994	sysread $term->{socket}, my $buf, 8192	1863	sysread $term->{socket}, my $buf, 8192
…		…
1011		1880
1012	Set the filedescriptor (not handle) to watch.	1881	Set the filedescriptor (not handle) to watch.
1013		1882
1014	=item $iow = $iow->events ($eventmask)	1883	=item $iow = $iow->events ($eventmask)
1015		1884
1016	Set the event mask to watch. Bit #0 (value C<1>) enables watching for read	1885	Set the event mask to watch. The only allowed values are
1017	data, Bit #1 (value C<2>) enables watching for write data.	1886	C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed
		1887	together, or C<urxvt::EVENT_NONE>.
1018		1888
1019	=item $iow = $iow->start	1889	=item $iow = $iow->start
1020		1890
1021	Start watching for requested events on the given handle.	1891	Start watching for requested events on the given handle.
1022		1892
1023	=item $iow = $iow->stop	1893	=item $iow = $iow->stop
1024		1894
1025	Stop watching for events on the given filehandle.	1895	Stop watching for events on the given filehandle.
		1896
		1897	=back
		1898
		1899	=head2 The C<urxvt::iw> Class
		1900
		1901	This class implements idle watchers, that get called automatically when
		1902	the process is idle. They should return as fast as possible, after doing
		1903	some useful work.
		1904
		1905	=over 4
		1906
		1907	=item $iw = new urxvt::iw
		1908
		1909	Create a new idle watcher object in stopped state.
		1910
		1911	=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
		1912
		1913	Set the callback to be called when the watcher triggers.
		1914
		1915	=item $timer = $timer->start
		1916
		1917	Start the watcher.
		1918
		1919	=item $timer = $timer->stop
		1920
		1921	Stop the watcher.
		1922
		1923	=back
		1924
		1925	=head2 The C<urxvt::pw> Class
		1926
		1927	This class implements process watchers. They create an event whenever a
		1928	process exits, after which they stop automatically.
		1929
		1930	my $pid = fork;
		1931	...
		1932	$term->{pw} = urxvt::pw
		1933	->new
		1934	->start ($pid)
		1935	->cb (sub {
		1936	my ($pw, $exit_status) = @_;
		1937	...
		1938	});
		1939
		1940	=over 4
		1941
		1942	=item $pw = new urxvt::pw
		1943
		1944	Create a new process watcher in stopped state.
		1945
		1946	=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
		1947
		1948	Set the callback to be called when the timer triggers.
		1949
		1950	=item $pw = $timer->start ($pid)
		1951
		1952	Tells the wqtcher to start watching for process C<$pid>.
		1953
		1954	=item $pw = $pw->stop
		1955
		1956	Stop the watcher.
1026		1957
1027	=back	1958	=back
1028		1959
1029	=head1 ENVIRONMENT	1960	=head1 ENVIRONMENT
1030		1961
…		…
1033	This variable controls the verbosity level of the perl extension. Higher	1964	This variable controls the verbosity level of the perl extension. Higher
1034	numbers indicate more verbose output.	1965	numbers indicate more verbose output.
1035		1966
1036	=over 4	1967	=over 4
1037		1968
1038	=item =0 - only fatal messages	1969	=item == 0 - fatal messages
1039		1970
1040	=item =3 - script loading and management	1971	=item >= 3 - script loading and management
1041		1972
1042	=item =10 - all events received	1973	=item >=10 - all called hooks
		1974
		1975	=item >=11 - hook reutrn values
1043		1976
1044	=back	1977	=back
1045		1978
1046	=head1 AUTHOR	1979	=head1 AUTHOR
1047		1980

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