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Revision 1.36 by root, Fri Jan 6 02:58:02 2006 UTC vs.
Revision 1.131 by root, Sun Jan 29 20:51:28 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 xim-onthespot
		218
		219	This (experimental) perl extension implements OnTheSpot editing. It does
		220	not work perfectly, and some input methods don't seem to work well with
		221	OnTheSpot editing in general, but it seems to work at leats for SCIM and
		222	kinput2.
		223
		224	You enable it by specifying this extension and a preedit style of
		225	C<OnTheSpot>, i.e.:
		226
		227	@@RXVT_NAME@@ -pt OnTheSpot -pe xim-onthespot
		228
		229	=item automove-background
		230
		231	This is basically a one-line extension that dynamically changes the background pixmap offset
		232	to the window position, in effect creating the same effect as pseudo transparency with
		233	a custom pixmap. No scaling is supported in this mode. Exmaple:
		234
		235	@@RXVT_NAME@@ -pixmap background.xpm -pe automove-background
		236
		237	=item block-graphics-to-ascii
		238
		239	A not very useful example of filtering all text output to the terminal,
		240	by replacing all line-drawing characters (U+2500 .. U+259F) by a
		241	similar-looking ascii character.
		242
61	=item digital-clock	243	=item digital-clock
62		244
63	Displays a digital clock using the built-in overlay.	245	Displays a digital clock using the built-in overlay.
64		246
65	=item mark-urls	247	=item remote-clipboard
66		248
67	Uses per-line filtering (C<on_line_update>) to underline urls.	249	Somewhat of a misnomer, this extension adds two menu entries to the
		250	selection popup that allows one ti run external commands to store the
		251	selection somewhere and fetch it again.
		252
		253	We use it to implement a "distributed selection mechanism", which just
		254	means that one command uploads the file to a remote server, and another
		255	reads it.
		256
		257	The commands can be set using the C<URxvt.remote-selection.store> and
		258	C<URxvt.remote-selection.fetch> resources. The first should read the
		259	selection to store from STDIN (always in UTF-8), the second should provide
		260	the selection data on STDOUT (also in UTF-8).
		261
		262	The defaults (which are likely useless to you) use rsh and cat:
		263
		264	URxvt.remote-selection.store: rsh ruth 'cat >/tmp/distributed-selection'
		265	URxvt.remote-selection.fetch: rsh ruth 'cat /tmp/distributed-selection'
		266
		267	=item selection-pastebin
		268
		269	This is a little rarely useful extension that Uploads the selection as
		270	textfile to a remote site (or does other things). (The implementation is
		271	not currently secure for use in a multiuser environment as it writes to
		272	F</tmp> directly.).
		273
		274	It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
		275	i.e.
		276
		277	URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
		278
		279	Pressing this combination runs a command with C<%> replaced by the name of
		280	the textfile. This command can be set via a resource:
		281
		282	URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
		283
		284	And the default is likely not useful to anybody but the few people around
		285	here :)
		286
		287	The name of the textfile is the hex encoded md5 sum of the selection, so
		288	the same content should lead to the same filename.
		289
		290	After a successful upload the selection will be replaced by the text given
		291	in the C<selection-pastebin-url> resource (again, the % is the placeholder
		292	for the filename):
		293
		294	URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
68		295
69	=item example-refresh-hooks	296	=item example-refresh-hooks
70		297
71	Displays a very simple digital clock in the upper right corner of the	298	Displays a very simple digital clock in the upper right corner of the
72	window. Illustrates overwriting the refresh callbacks to create your own	299	window. Illustrates overwriting the refresh callbacks to create your own
73	overlays or changes.	300	overlays or changes.
74		301
75	=item example-filter-input
76
77	A not very useful example of filtering all text output to the terminal, by
78	underlining all urls that matches a certain regex (i.e. some urls :). It
79	is not very useful because urls that are output in multiple steps (e.g.
80	when typing them) do not get marked.
81
82	=back	302	=back
		303
		304	=head1 API DOCUMENTATION
83		305
84	=head2 General API Considerations	306	=head2 General API Considerations
85		307
86	All objects (such as terminals, time watchers etc.) are typical	308	All objects (such as terminals, time watchers etc.) are typical
87	reference-to-hash objects. The hash can be used to store anything you	309	reference-to-hash objects. The hash can be used to store anything you
…		…
100	=over 4	322	=over 4
101		323
102	=item $text	324	=item $text
103		325
104	Rxvt-unicodes special way of encoding text, where one "unicode" character	326	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.	327	always represents one screen cell. See L<ROW_t> for a discussion of this format.
106		328
107	=item $string	329	=item $string
108		330
109	A perl text string, with an emphasis on I<text>. It can store all unicode	331	A perl text string, with an emphasis on I<text>. It can store all unicode
110	characters and is to be distinguished with text encoded in a specific	332	characters and is to be distinguished with text encoded in a specific
…		…
115	Either binary data or - more common - a text string encoded in a	337	Either binary data or - more common - a text string encoded in a
116	locale-specific way.	338	locale-specific way.
117		339
118	=back	340	=back
119		341
		342	=head2 Extension Objects
		343
		344	Very perl extension is a perl class. A separate perl object is created
		345	for each terminal and each extension and passed as the first parameter to
		346	hooks. So extensions can use their C<$self> object without having to think
		347	about other extensions, with the exception of methods and members that
		348	begin with an underscore character C<_>: these are reserved for internal
		349	use.
		350
		351	Although it isn't a C<urxvt::term> object, you can call all methods of the
		352	C<urxvt::term> class on this object.
		353
		354	It has the following methods and data members:
		355
		356	=over 4
		357
		358	=item $urxvt_term = $self->{term}
		359
		360	Returns the C<urxvt::term> object associated with this instance of the
		361	extension. This member I<must not> be changed in any way.
		362
		363	=item $self->enable ($hook_name => $cb, [$hook_name => $cb..])
		364
		365	Dynamically enable the given hooks (named without the C<on_> prefix) for
		366	this extension, replacing any previous hook. This is useful when you want
		367	to overwrite time-critical hooks only temporarily.
		368
		369	=item $self->disable ($hook_name[, $hook_name..])
		370
		371	Dynamically disable the given hooks.
		372
		373	=back
		374
120	=head2 Hooks	375	=head2 Hooks
121		376
122	The following subroutines can be declared in loaded scripts, and will be	377	The following subroutines can be declared in extension files, and will be
123	called whenever the relevant event happens.	378	called whenever the relevant event happens.
124		379
125	The first argument passed to them is an object private to each terminal	380	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	381	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		382
131	All of them must return a boolean value. If it is true, then the event	383	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,	384	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.	385	relevant action might not be carried out by the C++ code.
134		386
135	When in doubt, return a false value (preferably C<()>).	387	I<< When in doubt, return a false value (preferably C<()>). >>
136		388
137	=over 4	389	=over 4
138		390
139	=item on_init $term	391	=item on_init $term
140		392
141	Called after a new terminal object has been initialized, but before	393	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	394	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	395	call or deliver senseless data, as terminal size and other characteristics
144	have not yet been determined. You can safely query and change resources,	396	have not yet been determined. You can safely query and change resources
145	though.	397	and options, though. For many purposes the C<on_start> hook is a better
		398	place.
		399
		400	=item on_start $term
		401
		402	Called at the very end of initialisation of a new terminal, just before
		403	trying to map (display) the toplevel and returning to the mainloop.
		404
		405	=item on_destroy $term
		406
		407	Called whenever something tries to destroy terminal, when the terminal is
		408	still fully functional (not for long, though).
146		409
147	=item on_reset $term	410	=item on_reset $term
148		411
149	Called after the screen is "reset" for any reason, such as resizing or	412	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	413	control sequences. Here is where you can react on changes to size-related
151	variables.	414	variables.
152		415
153	=item on_start $term	416	=item on_child_start $term, $pid
154		417
155	Called at the very end of initialisation of a new terminal, just before	418	Called just after the child process has been C<fork>ed.
156	returning to the mainloop.	419
		420	=item on_child_exit $term, $status
		421
		422	Called just after the child process has exited. C<$status> is the status
		423	from C<waitpid>.
157		424
158	=item on_sel_make $term, $eventtime	425	=item on_sel_make $term, $eventtime
159		426
160	Called whenever a selection has been made by the user, but before the	427	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	428	selection text is copied, so changes to the beginning, end or type of the
…		…
175	=item on_sel_extend $term	442	=item on_sel_extend $term
176		443
177	Called whenever the user tries to extend the selection (e.g. with a double	444	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	445	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	446	should extend the selection itelf and return true to suppress the built-in
180	processing.	447	processing. This can happen multiple times, as long as the callback
		448	returns true, it will be called on every further click by the user and is
		449	supposed to enlarge the selection more and more, if possible.
181		450
182	See the F<selection> example extension.	451	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		452
194	=item on_view_change $term, $offset	453	=item on_view_change $term, $offset
195		454
196	Called whenever the view offset changes, i..e the user or program	455	Called whenever the view offset changes, i..e the user or program
197	scrolls. Offset C<0> means display the normal terminal, positive values	456	scrolls. Offset C<0> means display the normal terminal, positive values
…		…
204	than the scroll back buffer or the terminal.	463	than the scroll back buffer or the terminal.
205		464
206	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,	465	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	466	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
208	number of lines that will be in the scrollback buffer.	467	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		468
214	=item on_osc_seq $term, $string	469	=item on_osc_seq $term, $string
215		470
216	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =	471	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
217	operating system command) is processed. Cursor position and other state	472	operating system command) is processed. Cursor position and other state
…		…
230	can filter/change and output the text yourself by returning a true value	485	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	486	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	487	might be very slow, however, as your hook is called for B<all> text being
233	output.	488	output.
234		489
		490	=item on_tt_write $term, $octets
		491
		492	Called whenever some data is written to the tty/pty and can be used to
		493	suppress or filter tty input.
		494
235	=item on_line_update $term, $row	495	=item on_line_update $term, $row
236		496
237	Called whenever a line was updated or changed. Can be used to filter	497	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	498	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,	499	that are being shown will be filtered, and, due to performance reasons,
…		…
255		515
256	=item on_refresh_end $term	516	=item on_refresh_end $term
257		517
258	Called just after the screen gets redrawn. See C<on_refresh_begin>.	518	Called just after the screen gets redrawn. See C<on_refresh_begin>.
259		519
260	=item on_keyboard_command $term, $string	520	=item on_user_command $term, $string
261		521
262	Called whenever the user presses a key combination that has a	522	Called whenever the a user-configured event is being activated (e.g. via
263	C<perl:string> action bound to it (see description of the B<keysym>	523	a C<perl:string> action bound to a key, see description of the B<keysym>
264	resource in the @@RXVT_NAME@@(1) manpage).	524	resource in the @@RXVT_NAME@@(1) manpage).
265		525
		526	The event is simply the action string. This interface is assumed to change
		527	slightly in the future.
		528
		529	=item on_x_event $term, $event
		530
		531	Called on every X event received on the vt window (and possibly other
		532	windows). Should only be used as a last resort. Most event structure
		533	members are not passed.
		534
		535	=item on_focus_in $term
		536
		537	Called whenever the window gets the keyboard focus, before rxvt-unicode
		538	does focus in processing.
		539
		540	=item on_focus_out $term
		541
		542	Called wheneever the window loses keyboard focus, before rxvt-unicode does
		543	focus out processing.
		544
		545	=item on_configure_notify $term, $event
		546
		547	=item on_property_notify $term, $event
		548
		549	=item on_key_press $term, $event, $keysym, $octets
		550
		551	=item on_key_release $term, $event, $keysym
		552
		553	=item on_button_press $term, $event
		554
		555	=item on_button_release $term, $event
		556
		557	=item on_motion_notify $term, $event
		558
		559	=item on_map_notify $term, $event
		560
		561	=item on_unmap_notify $term, $event
		562
		563	Called whenever the corresponding X event is received for the terminal If
		564	the hook returns true, then the even will be ignored by rxvt-unicode.
		565
		566	The event is a hash with most values as named by Xlib (see the XEvent
		567	manpage), with the additional members C<row> and C<col>, which are the
		568	(real, not screen-based) row and column under the mouse cursor.
		569
		570	C<on_key_press> additionally receives the string rxvt-unicode would
		571	output, if any, in locale-specific encoding.
		572
		573	subwindow.
		574
		575	=item on_client_message $term, $event
		576
		577	=item on_wm_protocols $term, $event
		578
		579	=item on_wm_delete_window $term, $event
		580
		581	Called when various types of ClientMessage events are received (all with
		582	format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
		583
266	=back	584	=back
267		585
		586	=cut
		587
		588	package urxvt;
		589
		590	use utf8;
		591	use strict;
		592	use Carp ();
		593	use Scalar::Util ();
		594	use List::Util ();
		595
		596	our $VERSION = 1;
		597	our $TERM;
		598	our @TERM_INIT;
		599	our @TERM_EXT;
		600	our @HOOKNAME;
		601	our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
		602	our %OPTION;
		603
		604	our $LIBDIR;
		605	our $RESNAME;
		606	our $RESCLASS;
		607	our $RXVTNAME;
		608
		609	our $NOCHAR = chr 0xffff;
		610
268	=head2 Variables in the C<urxvt> Package	611	=head2 Variables in the C<urxvt> Package
269		612
270	=over 4	613	=over 4
271		614
		615	=item $urxvt::LIBDIR
		616
		617	The rxvt-unicode library directory, where, among other things, the perl
		618	modules and scripts are stored.
		619
		620	=item $urxvt::RESCLASS, $urxvt::RESCLASS
		621
		622	The resource class and name rxvt-unicode uses to look up X resources.
		623
		624	=item $urxvt::RXVTNAME
		625
		626	The basename of the installed binaries, usually C<urxvt>.
		627
272	=item $urxvt::TERM	628	=item $urxvt::TERM
273		629
274	The current terminal. Whenever a callback/Hook is bein executed, this	630	The current terminal. This variable stores the current C<urxvt::term>
275	variable stores the current C<urxvt::term> object.	631	object, whenever a callback/hook is executing.
		632
		633	=item @urxvt::TERM_INIT
		634
		635	All coderefs in this array will be called as methods of the next newly
		636	created C<urxvt::term> object (during the C<on_init> phase). The array
		637	gets cleared before the codereferences that were in it are being executed,
		638	so coderefs can push themselves onto it again if they so desire.
		639
		640	This complements to the perl-eval commandline option, but gets executed
		641	first.
		642
		643	=item @urxvt::TERM_EXT
		644
		645	Works similar to C<@TERM_INIT>, but contains perl package/class names, which
		646	get registered as normal extensions after calling the hooks in C<@TERM_INIT>
		647	but before other extensions. Gets cleared just like C<@TERM_INIT>.
276		648
277	=back	649	=back
278		650
279	=head2 Functions in the C<urxvt> Package	651	=head2 Functions in the C<urxvt> Package
280		652
281	=over 4	653	=over 4
282
283	=item $term = new urxvt [arg...]
284
285	Creates a new terminal, very similar as if you had started it with
286	C<system $binfile, arg...>. Croaks (and probably outputs an error message)
287	if the new instance couldn't be created. Returns C<undef> if the new
288	instance didn't initialise perl, and the terminal object otherwise. The
289	C<init> and C<start> hooks will be called during the call.
290		654
291	=item urxvt::fatal $errormessage	655	=item urxvt::fatal $errormessage
292		656
293	Fatally aborts execution with the given error message. Avoid at all	657	Fatally aborts execution with the given error message. Avoid at all
294	costs! The only time this is acceptable is when the terminal process	658	costs! The only time this is acceptable is when the terminal process
…		…
301	that calls this function.	665	that calls this function.
302		666
303	Using this function has the advantage that its output ends up in the	667	Using this function has the advantage that its output ends up in the
304	correct place, e.g. on stderr of the connecting urxvtc client.	668	correct place, e.g. on stderr of the connecting urxvtc client.
305		669
		670	Messages have a size limit of 1023 bytes currently.
		671
		672	=item @terms = urxvt::termlist
		673
		674	Returns all urxvt::term objects that exist in this process, regardless of
		675	wether they are started, being destroyed etc., so be careful. Only term
		676	objects that have perl extensions attached will be returned (because there
		677	is no urxvt::term objet associated with others).
		678
306	=item $time = urxvt::NOW	679	=item $time = urxvt::NOW
307		680
308	Returns the "current time" (as per the event loop).	681	Returns the "current time" (as per the event loop).
		682
		683	=item urxvt::CurrentTime
		684
		685	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
		686	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
		687	Button4Mask, Button5Mask, AnyModifier
		688
		689	=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
		690	ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
		691	PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
		692	Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
		693	KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
		694	ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
		695	FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
		696
		697	=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
		698	EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
		699	GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
		700	UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
		701	ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
		702	CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
		703	SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
		704
		705	Various constants for use in X calls and event processing.
309		706
310	=back	707	=back
311		708
312	=head2 RENDITION	709	=head2 RENDITION
313		710
…		…
340		737
341	=item $background = urxvt::GET_BASEBG $rend	738	=item $background = urxvt::GET_BASEBG $rend
342		739
343	Return the foreground/background colour index, respectively.	740	Return the foreground/background colour index, respectively.
344		741
345	=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)	742	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
346		743
347	=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)	744	=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
348		745
349	Replace the foreground/background colour in the rendition mask with the	746	Replace the foreground/background colour in the rendition mask with the
350	specified one.	747	specified one.
351		748
352	=item $value = urxvt::GET_CUSTOM ($rend)	749	=item $value = urxvt::GET_CUSTOM $rend
353		750
354	Return the "custom" value: Every rendition has 5 bits for use by	751	Return the "custom" value: Every rendition has 5 bits for use by
355	extensions. They can be set and changed as you like and are initially	752	extensions. They can be set and changed as you like and are initially
356	zero.	753	zero.
357		754
358	=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)	755	=item $rend = urxvt::SET_CUSTOM $rend, $new_value
359		756
360	Change the custom value.	757	Change the custom value.
361		758
362	=back	759	=back
363		760
364	=cut	761	=cut
365		762
366	package urxvt;
367
368	use strict;
369	use Scalar::Util ();
370
371	our $TERM;
372	our @HOOKNAME;
373	our $LIBDIR;
374
375	BEGIN {	763	BEGIN {
376	urxvt->bootstrap;
377
378	# overwrite perl's warn	764	# overwrite perl's warn
379	*CORE::GLOBAL::warn = sub {	765	*CORE::GLOBAL::warn = sub {
380	my $msg = join "", @_;	766	my $msg = join "", @_;
381	$msg .= "\n"	767	$msg .= "\n"
382	unless $msg =~ /\n$/;	768	unless $msg =~ /\n$/;
383	urxvt::warn ($msg);	769	urxvt::warn ($msg);
384	};	770	};
385	}	771	}
386		772
387	my @hook_count;	773	no warnings 'utf8';
		774
388	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};	775	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
389		776
390	sub verbose {	777	sub verbose {
391	my ($level, $msg) = @_;	778	my ($level, $msg) = @_;
392	warn "$msg\n" if $level <= $verbosity;	779	warn "$msg\n" if $level <= $verbosity;
393	}	780	}
394		781
395	# find on_xxx subs in the package and register them	782	my %extension_pkg;
396	# as hooks
397	sub register_package($) {
398	my ($pkg) = @_;
399
400	for my $htype (0.. $#HOOKNAME) {
401	my $name = $HOOKNAME[$htype];
402
403	my $ref = $pkg->can ("on_" . lc $name)
404	or next;
405
406	$TERM->{_hook}[$htype]{$pkg} = $ref;
407	$hook_count[$htype]++
408	or set_should_invoke $htype, 1;
409	}
410	}
411
412	my $script_pkg = "script0000";
413	my %script_pkg;
414		783
415	# load a single script into its own package, once only	784	# load a single script into its own package, once only
416	sub script_package($) {	785	sub extension_package($) {
417	my ($path) = @_;	786	my ($path) = @_;
418		787
419	$script_pkg{$path} ||= do {	788	$extension_pkg{$path} ||= do {
420	my $pkg = "urxvt::" . ($script_pkg++);	789	$path =~ /([^\/\\]+)$/;
		790	my $pkg = $1;
		791	$pkg =~ s/[^[:word:]]/_/g;
		792	$pkg = "urxvt::ext::$pkg";
421		793
422	verbose 3, "loading script '$path' into package '$pkg'";	794	verbose 3, "loading extension '$path' into package '$pkg'";
423		795
424	open my $fh, "<:raw", $path	796	open my $fh, "<:raw", $path
425	or die "$path: $!";	797	or die "$path: $!";
426		798
427	my $source = "package $pkg; use strict; use utf8;\n"	799	my $source =
		800	"package $pkg; use strict; use utf8; no warnings 'utf8';\n"
428	. "#line 1 \"$path\"\n{\n"	801	. "#line 1 \"$path\"\n{\n"
429	. (do { local $/; <$fh> })	802	. (do { local $/; <$fh> })
430	. "\n};\n1";	803	. "\n};\n1";
431		804
		805	eval $source
432	eval $source or die "$path: $@";	806	or die "$path: $@";
433		807
434	$pkg	808	$pkg
435	}	809	}
436	}	810	}
437		811
…		…
442	local $TERM = shift;	816	local $TERM = shift;
443	my $htype = shift;	817	my $htype = shift;
444		818
445	if ($htype == 0) { # INIT	819	if ($htype == 0) { # INIT
446	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");	820	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
		821
		822	my %ext_arg;
447		823
		824	{
		825	my @init = @TERM_INIT;
		826	@TERM_INIT = ();
		827	$_->($TERM) for @init;
		828	my @pkg = @TERM_EXT;
		829	@TERM_EXT = ();
		830	$TERM->register_package ($_) for @pkg;
		831	}
		832
448	for my $ext (map { split /:/, $TERM->resource ("perl_ext_$_") } 1, 2) {	833	for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
		834	if ($_ eq "default") {
		835	$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
		836	} elsif (/^-(.*)$/) {
		837	delete $ext_arg{$1};
		838	} elsif (/^([^<]+)<(.*)>$/) {
		839	push @{ $ext_arg{$1} }, $2;
		840	} else {
		841	$ext_arg{$_} ||= [];
		842	}
		843	}
		844
		845	while (my ($ext, $argv) = each %ext_arg) {
449	my @files = grep -f $_, map "$_/$ext", @dirs;	846	my @files = grep -f $_, map "$_/$ext", @dirs;
450		847
451	if (@files) {	848	if (@files) {
452	register_package script_package $files[0];	849	$TERM->register_package (extension_package $files[0], $argv);
453	} else {	850	} else {
454	warn "perl extension '$ext' not found in perl library search path\n";	851	warn "perl extension '$ext' not found in perl library search path\n";
455	}	852	}
456	}	853	}
		854
		855	eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval");
		856	warn $@ if $@;
457	}	857	}
458		858
459	$retval = undef;	859	$retval = undef;
460		860
461	if (my $cb = $TERM->{_hook}[$htype]) {	861	if (my $cb = $TERM->{_hook}[$htype]) {
…		…
463	if $verbosity >= 10;	863	if $verbosity >= 10;
464		864
465	keys %$cb;	865	keys %$cb;
466		866
467	while (my ($pkg, $cb) = each %$cb) {	867	while (my ($pkg, $cb) = each %$cb) {
468	$retval = $cb->(	868	my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
469	$TERM->{_pkg}{$pkg} ||= do {	869	$retval ||= $retval_;
470	my $proxy = bless { }, urxvt::term::proxy::;
471	Scalar::Util::weaken ($proxy->{term} = $TERM);
472	$proxy
473	},
474	@_,
475	) and last;
476	}
477	}
478		870
479	if ($htype == 1) { # DESTROY	871	if ($@) {
480	# remove hooks if unused	872	$TERM->ungrab; # better to lose the grab than the session
481	if (my $hook = $TERM->{_hook}) {	873	warn $@;
482	for my $htype (0..$#$hook) {
483	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
484	or set_should_invoke $htype, 0;
485	}	874	}
486	}	875	}
487		876
		877	verbose 11, "$HOOKNAME[$htype] returning <$retval>"
		878	if $verbosity >= 11;
		879	}
		880
		881	if ($htype == 1) { # DESTROY
488	# clear package objects	882	# clear package objects
489	%$_ = () for values %{ $TERM->{_pkg} };	883	%$_ = () for values %{ $TERM->{_pkg} };
490		884
491	# clear package	885	# clear package
492	%$TERM = ();	886	%$TERM = ();
493	}	887	}
494		888
495	$retval	889	$retval
496	}	890	}
497		891
498	sub urxvt::term::proxy::AUTOLOAD {	892	# urxvt::term::extension
499	$urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/	893
		894	package urxvt::term::extension;
		895
		896	sub enable {
		897	my ($self, %hook) = @_;
		898	my $pkg = $self->{_pkg};
		899
		900	while (my ($name, $cb) = each %hook) {
		901	my $htype = $HOOKTYPE{uc $name};
		902	defined $htype
		903	or Carp::croak "unsupported hook type '$name'";
		904
		905	$self->set_should_invoke ($htype, +1)
		906	unless exists $self->{term}{_hook}[$htype]{$pkg};
		907
		908	$self->{term}{_hook}[$htype]{$pkg} = $cb;
		909	}
		910	}
		911
		912	sub disable {
		913	my ($self, @hook) = @_;
		914	my $pkg = $self->{_pkg};
		915
		916	for my $name (@hook) {
		917	my $htype = $HOOKTYPE{uc $name};
		918	defined $htype
		919	or Carp::croak "unsupported hook type '$name'";
		920
		921	$self->set_should_invoke ($htype, -1)
		922	if delete $self->{term}{_hook}[$htype]{$pkg};
		923	}
		924	}
		925
		926	our $AUTOLOAD;
		927
		928	sub AUTOLOAD {
		929	$AUTOLOAD =~ /:([^:]+)$/
500	or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";	930	or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
501		931
502	eval qq{	932	eval qq{
503	sub $urxvt::term::proxy::AUTOLOAD {	933	sub $AUTOLOAD {
504	my \$proxy = shift;	934	my \$proxy = shift;
505	\$proxy->{term}->$1 (\@_)	935	\$proxy->{term}->$1 (\@_)
506	}	936	}
507	1	937	1
508	} or die "FATAL: unable to compile method forwarder: $@";	938	} or die "FATAL: unable to compile method forwarder: $@";
509		939
510	goto &$urxvt::term::proxy::AUTOLOAD;	940	goto &$AUTOLOAD;
511	}	941	}
		942
		943	sub DESTROY {
		944	# nop
		945	}
		946
		947	# urxvt::destroy_hook
		948
		949	sub urxvt::destroy_hook::DESTROY {
		950	${$_[0]}->();
		951	}
		952
		953	sub urxvt::destroy_hook(&) {
		954	bless \shift, urxvt::destroy_hook::
		955	}
		956
		957	package urxvt::anyevent;
		958
		959	=head2 The C<urxvt::anyevent> Class
		960
		961	The sole purpose of this class is to deliver an interface to the
		962	C<AnyEvent> module - any module using it will work inside urxvt without
		963	further programming. The only exception is that you cannot wait on
		964	condition variables, but non-blocking condvar use is ok. What this means
		965	is that you cannot use blocking APIs, but the non-blocking variant should
		966	work.
		967
		968	=cut
		969
		970	our $VERSION = 1;
		971
		972	$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
		973	push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
		974
		975	sub timer {
		976	my ($class, %arg) = @_;
		977
		978	my $cb = $arg{cb};
		979
		980	urxvt::timer
		981	->new
		982	->start (urxvt::NOW + $arg{after})
		983	->cb (sub {
		984	$_[0]->stop; # need to cancel manually
		985	$cb->();
		986	})
		987	}
		988
		989	sub io {
		990	my ($class, %arg) = @_;
		991
		992	my $cb = $arg{cb};
		993
		994	bless [$arg{fh}, urxvt::iow
		995	->new
		996	->fd (fileno $arg{fh})
		997	->events (($arg{poll} =~ /r/ ? 1 : 0)
		998	| ($arg{poll} =~ /w/ ? 2 : 0))
		999	->start
		1000	->cb (sub {
		1001	$cb->(($_[1] & 1 ? 'r' : '')
		1002	. ($_[1] & 2 ? 'w' : ''));
		1003	})],
		1004	urxvt::anyevent::
		1005	}
		1006
		1007	sub DESTROY {
		1008	$_[0][1]->stop;
		1009	}
		1010
		1011	sub condvar {
		1012	bless \my $flag, urxvt::anyevent::condvar::
		1013	}
		1014
		1015	sub urxvt::anyevent::condvar::broadcast {
		1016	${$_[0]}++;
		1017	}
		1018
		1019	sub urxvt::anyevent::condvar::wait {
		1020	unless (${$_[0]}) {
		1021	Carp::croak "AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API";
		1022	}
		1023	}
		1024
		1025	package urxvt::term;
512		1026
513	=head2 The C<urxvt::term> Class	1027	=head2 The C<urxvt::term> Class
514		1028
515	=over 4	1029	=over 4
516		1030
		1031	=cut
		1032
		1033	# find on_xxx subs in the package and register them
		1034	# as hooks
		1035	sub register_package {
		1036	my ($self, $pkg, $argv) = @_;
		1037
		1038	no strict 'refs';
		1039
		1040	urxvt::verbose 6, "register package $pkg to $self";
		1041
		1042	@{"$pkg\::ISA"} = urxvt::term::extension::;
		1043
		1044	my $proxy = bless {
		1045	_pkg => $pkg,
		1046	argv => $argv,
		1047	}, $pkg;
		1048	Scalar::Util::weaken ($proxy->{term} = $self);
		1049
		1050	$self->{_pkg}{$pkg} = $proxy;
		1051
		1052	for my $name (@HOOKNAME) {
		1053	if (my $ref = $pkg->can ("on_" . lc $name)) {
		1054	$proxy->enable ($name => $ref);
		1055	}
		1056	}
		1057	}
		1058
		1059	=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
		1060
		1061	Creates a new terminal, very similar as if you had started it with system
		1062	C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
		1063	hash which defines the environment of the new terminal.
		1064
		1065	Croaks (and probably outputs an error message) if the new instance
		1066	couldn't be created. Returns C<undef> if the new instance didn't
		1067	initialise perl, and the terminal object otherwise. The C<init> and
		1068	C<start> hooks will be called before this call returns, and are free to
		1069	refer to global data (which is race free).
		1070
		1071	=cut
		1072
		1073	sub new {
		1074	my ($class, $env, @args) = @_;
		1075
		1076	$env or Carp::croak "environment hash missing in call to urxvt::term->new";
		1077	@args or Carp::croak "name argument missing in call to urxvt::term->new";
		1078
		1079	_new ([ map "$_=$env->{$_}", keys %$env ], \@args);
		1080	}
		1081
517	=item $term->destroy	1082	=item $term->destroy
518		1083
519	Destroy the terminal object (close the window, free resources etc.).	1084	Destroy the terminal object (close the window, free resources
		1085	etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
		1086	watchers (timers, io watchers) are still active.
		1087
		1088	=item $term->exec_async ($cmd[, @args])
		1089
		1090	Works like the combination of the C<fork>/C<exec> builtins, which executes
		1091	("starts") programs in the background. This function takes care of setting
		1092	the user environment before exec'ing the command (e.g. C<PATH>) and should
		1093	be preferred over explicit calls to C<exec> or C<system>.
		1094
		1095	Returns the pid of the subprocess or C<undef> on error.
		1096
		1097	=cut
		1098
		1099	sub exec_async {
		1100	my $self = shift;
		1101
		1102	my $pid = fork;
		1103
		1104	return $pid
		1105	if !defined $pid or $pid;
		1106
		1107	%ENV = %{ $self->env };
		1108
		1109	exec @_;
		1110	urxvt::_exit 255;
		1111	}
		1112
		1113	=item $isset = $term->option ($optval[, $set])
		1114
		1115	Returns true if the option specified by C<$optval> is enabled, and
		1116	optionally change it. All option values are stored by name in the hash
		1117	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
		1118
		1119	Here is a a likely non-exhaustive list of option names, please see the
		1120	source file F</src/optinc.h> to see the actual list:
		1121
		1122	borderLess console cursorBlink cursorUnderline hold iconic insecure
		1123	intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
		1124	override-redirect pastableTabs pointerBlank reverseVideo scrollBar
		1125	scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
		1126	scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
		1127	transparent tripleclickwords utmpInhibit visualBell
520		1128
521	=item $value = $term->resource ($name[, $newval])	1129	=item $value = $term->resource ($name[, $newval])
522		1130
523	Returns the current resource value associated with a given name and	1131	Returns the current resource value associated with a given name and
524	optionally sets a new value. Setting values is most useful in the C<init>	1132	optionally sets a new value. Setting values is most useful in the C<init>
…		…
534		1142
535	Please note that resource strings will currently only be freed when the	1143	Please note that resource strings will currently only be freed when the
536	terminal is destroyed, so changing options frequently will eat memory.	1144	terminal is destroyed, so changing options frequently will eat memory.
537		1145
538	Here is a a likely non-exhaustive list of resource names, not all of which	1146	Here is a a likely non-exhaustive list of resource names, not all of which
539	are supported in every build, please see the source to see the actual	1147	are supported in every build, please see the source file F</src/rsinc.h>
540	list:	1148	to see the actual list:
541		1149
542	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont	1150	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
543	borderLess color cursorBlink cursorUnderline cutchars delete_key	1151	borderLess color cursorBlink cursorUnderline cutchars delete_key
544	display_name embed ext_bwidth fade font geometry hold iconName	1152	display_name embed ext_bwidth fade font geometry hold iconName
545	imFont imLocale inputMethod insecure int_bwidth intensityStyles	1153	imFont imLocale inputMethod insecure int_bwidth intensityStyles
546	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier	1154	italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
547	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2	1155	mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
548	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd	1156	perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
549	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating	1157	preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
550	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput	1158	scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
551	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle	1159	scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
552	shade term_name title transparent transparent_all tripleclickwords	1160	secondaryScreen secondaryScroll selectstyle shade term_name title
553	utmpInhibit visualBell	1161	transient_for transparent transparent_all tripleclickwords utmpInhibit
		1162	visualBell
554		1163
555	=cut	1164	=cut
556		1165
557	sub urxvt::term::resource($$;$) {	1166	sub resource($$;$) {
558	my ($self, $name) = (shift, shift);	1167	my ($self, $name) = (shift, shift);
559	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);	1168	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
560	goto &urxvt::term::_resource;	1169	&urxvt::term::_resource
561	}	1170	}
		1171
		1172	=item $value = $term->x_resource ($pattern)
		1173
		1174	Returns the X-Resource for the given pattern, excluding the program or
		1175	class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
		1176	same value as used by this instance of rxvt-unicode. Returns C<undef> if no
		1177	resource with that pattern exists.
		1178
		1179	This method should only be called during the C<on_start> hook, as there is
		1180	only one resource database per display, and later invocations might return
		1181	the wrong resources.
		1182
		1183	=item $success = $term->parse_keysym ($keysym_spec, $command_string)
		1184
		1185	Adds a keymap translation exactly as specified via a resource. See the
		1186	C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
562		1187
563	=item $rend = $term->rstyle ([$new_rstyle])	1188	=item $rend = $term->rstyle ([$new_rstyle])
564		1189
565	Return and optionally change the current rendition. Text that is output by	1190	Return and optionally change the current rendition. Text that is output by
566	the terminal application will use this style.	1191	the terminal application will use this style.
…		…
577	=item ($row, $col) = $term->selection_end ([$row, $col])	1202	=item ($row, $col) = $term->selection_end ([$row, $col])
578		1203
579	Return the current values of the selection mark, begin or end positions,	1204	Return the current values of the selection mark, begin or end positions,
580	and optionally set them to new values.	1205	and optionally set them to new values.
581		1206
		1207	=item $term->selection_make ($eventtime[, $rectangular])
		1208
		1209	Tries to make a selection as set by C<selection_beg> and
		1210	C<selection_end>. If C<$rectangular> is true (default: false), a
		1211	rectangular selection will be made. This is the prefered function to make
		1212	a selection.
		1213
582	=item $success = $term->selection_grab ($eventtime)	1214	=item $success = $term->selection_grab ($eventtime)
583		1215
584	Try to request the primary selection from the server (for example, as set	1216	Try to request the primary selection text from the server (for example, as
585	by the next method).	1217	set by the next method). No visual feedback will be given. This function
		1218	is mostly useful from within C<on_sel_grab> hooks.
586		1219
587	=item $oldtext = $term->selection ([$newtext])	1220	=item $oldtext = $term->selection ([$newtext])
588		1221
589	Return the current selection text and optionally replace it by C<$newtext>.	1222	Return the current selection text and optionally replace it by C<$newtext>.
590		1223
591	#=item $term->overlay ($x, $y, $text)	1224	=item $term->overlay_simple ($x, $y, $text)
592	#	1225
593	#Create a simple multi-line overlay box. See the next method for details.	1226	Create a simple multi-line overlay box. See the next method for details.
594	#	1227
595	#=cut	1228	=cut
596	#	1229
597	#sub urxvt::term::scr_overlay {	1230	sub overlay_simple {
598	# my ($self, $x, $y, $text) = @_;	1231	my ($self, $x, $y, $text) = @_;
599	#	1232
600	# my @lines = split /\n/, $text;	1233	my @lines = split /\n/, $text;
601	#	1234
602	# my $w = 0;	1235	my $w = List::Util::max map $self->strwidth ($_), @lines;
603	# for (map $self->strwidth ($_), @lines) {	1236
604	# $w = $_ if $w < $_;
605	# }
606	#
607	# $self->scr_overlay_new ($x, $y, $w, scalar @lines);	1237	my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
608	# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;	1238	$overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
609	#}	1239
		1240	$overlay
		1241	}
610		1242
611	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])	1243	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
612		1244
613	Create a new (empty) overlay at the given position with the given	1245	Create a new (empty) overlay at the given position with the given
614	width/height. C<$rstyle> defines the initial rendition style	1246	width/height. C<$rstyle> defines the initial rendition style
…		…
641		1273
642	If hidden, display the overlay again.	1274	If hidden, display the overlay again.
643		1275
644	=back	1276	=back
645		1277
		1278	=item $popup = $term->popup ($event)
		1279
		1280	Creates a new C<urxvt::popup> object that implements a popup menu. The
		1281	C<$event> I<must> be the event causing the menu to pop up (a button event,
		1282	currently).
		1283
		1284	=cut
		1285
		1286	sub popup {
		1287	my ($self, $event) = @_;
		1288
		1289	$self->grab ($event->{time}, 1)
		1290	or return;
		1291
		1292	my $popup = bless {
		1293	term => $self,
		1294	event => $event,
		1295	}, urxvt::popup::;
		1296
		1297	Scalar::Util::weaken $popup->{term};
		1298
		1299	$self->{_destroy}{$popup} = urxvt::destroy_hook { $popup->{popup}->destroy };
		1300	Scalar::Util::weaken $self->{_destroy}{$popup};
		1301
		1302	$popup
		1303	}
		1304
646	=item $cellwidth = $term->strwidth $string	1305	=item $cellwidth = $term->strwidth ($string)
647		1306
648	Returns the number of screen-cells this string would need. Correctly	1307	Returns the number of screen-cells this string would need. Correctly
649	accounts for wide and combining characters.	1308	accounts for wide and combining characters.
650		1309
651	=item $octets = $term->locale_encode $string	1310	=item $octets = $term->locale_encode ($string)
652		1311
653	Convert the given text string into the corresponding locale encoding.	1312	Convert the given text string into the corresponding locale encoding.
654		1313
655	=item $string = $term->locale_decode $octets	1314	=item $string = $term->locale_decode ($octets)
656		1315
657	Convert the given locale-encoded octets into a perl string.	1316	Convert the given locale-encoded octets into a perl string.
		1317
		1318	=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
		1319
		1320	XORs the rendition values in the given span with the provided value
		1321	(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
		1322	refresh hooks to provide effects similar to the selection.
		1323
		1324	=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
		1325
		1326	Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
		1327	whitespace will additionally be xored with the C<$rstyle2>, which defaults
		1328	to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
		1329	it instead. Both styles I<MUST NOT> contain font styles.
		1330
		1331	=item $term->scr_bell
		1332
		1333	Ring the bell!
658		1334
659	=item $term->scr_add_lines ($string)	1335	=item $term->scr_add_lines ($string)
660		1336
661	Write the given text string to the screen, as if output by the application	1337	Write the given text string to the screen, as if output by the application
662	running inside the terminal. It may not contain command sequences (escape	1338	running inside the terminal. It may not contain command sequences (escape
…		…
665		1341
666	Normally its not a good idea to use this function, as programs might be	1342	Normally its not a good idea to use this function, as programs might be
667	confused by changes in cursor position or scrolling. Its useful inside a	1343	confused by changes in cursor position or scrolling. Its useful inside a
668	C<on_add_lines> hook, though.	1344	C<on_add_lines> hook, though.
669		1345
		1346	=item $term->scr_change_screen ($screen)
		1347
		1348	Switch to given screen - 0 primary, 1 secondary.
		1349
670	=item $term->cmd_parse ($octets)	1350	=item $term->cmd_parse ($octets)
671		1351
672	Similar to C<scr_add_lines>, but the argument must be in the	1352	Similar to C<scr_add_lines>, but the argument must be in the
673	locale-specific encoding of the terminal and can contain command sequences	1353	locale-specific encoding of the terminal and can contain command sequences
674	(escape codes) that will be interpreted.	1354	(escape codes) that will be interpreted.
…		…
677		1357
678	Write the octets given in C<$data> to the tty (i.e. as program input). To	1358	Write the octets given in C<$data> to the tty (i.e. as program input). To
679	pass characters instead of octets, you should convert your strings first	1359	pass characters instead of octets, you should convert your strings first
680	to the locale-specific encoding using C<< $term->locale_encode >>.	1360	to the locale-specific encoding using C<< $term->locale_encode >>.
681		1361
		1362	=item $old_events = $term->pty_ev_events ([$new_events])
		1363
		1364	Replaces the event mask of the pty watcher by the given event mask. Can
		1365	be used to suppress input and output handling to the pty/tty. See the
		1366	description of C<< urxvt::timer->events >>. Make sure to always restore
		1367	the previous value.
		1368
		1369	=item $fd = $term->pty_fd
		1370
		1371	Returns the master file descriptor for the pty in use, or C<-1> if no pty
		1372	is used.
		1373
		1374	=item $windowid = $term->parent
		1375
		1376	Return the window id of the toplevel window.
		1377
		1378	=item $windowid = $term->vt
		1379
		1380	Return the window id of the terminal window.
		1381
		1382	=item $term->vt_emask_add ($x_event_mask)
		1383
		1384	Adds the specified events to the vt event mask. Useful e.g. when you want
		1385	to receive pointer events all the times:
		1386
		1387	$term->vt_emask_add (urxvt::PointerMotionMask);
		1388
682	=item $window_width = $term->width	1389	=item $window_width = $term->width
683		1390
684	=item $window_height = $term->height	1391	=item $window_height = $term->height
685		1392
686	=item $font_width = $term->fwidth	1393	=item $font_width = $term->fwidth
…		…
699		1406
700	=item $max_scrollback = $term->saveLines	1407	=item $max_scrollback = $term->saveLines
701		1408
702	=item $nrow_plus_saveLines = $term->total_rows	1409	=item $nrow_plus_saveLines = $term->total_rows
703		1410
704	=item $lines_in_scrollback = $term->nsaved	1411	=item $topmost_scrollback_row = $term->top_row
705		1412
706	Return various integers describing terminal characteristics.	1413	Return various integers describing terminal characteristics.
707		1414
		1415	=item $x_display = $term->display_id
		1416
		1417	Return the DISPLAY used by rxvt-unicode.
		1418
		1419	=item $lc_ctype = $term->locale
		1420
		1421	Returns the LC_CTYPE category string used by this rxvt-unicode.
		1422
		1423	=item $env = $term->env
		1424
		1425	Returns a copy of the environment in effect for the terminal as a hashref
		1426	similar to C<\%ENV>.
		1427
		1428	=cut
		1429
		1430	sub env {
		1431	if (my $env = $_[0]->_env) {
		1432	+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), @$env }
		1433	} else {
		1434	+{ %ENV }
		1435	}
		1436	}
		1437
		1438	=item $modifiermask = $term->ModLevel3Mask
		1439
		1440	=item $modifiermask = $term->ModMetaMask
		1441
		1442	=item $modifiermask = $term->ModNumLockMask
		1443
		1444	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
		1445	AltGr), the meta key (often Alt) and the num lock key, if applicable.
		1446
		1447	=item $screen = $term->current_screen
		1448
		1449	Returns the currently displayed screen (0 primary, 1 secondary).
		1450
		1451	=item $cursor_is_hidden = $term->hidden_cursor
		1452
		1453	Returns wether the cursor is currently hidden or not.
		1454
708	=item $view_start = $term->view_start ([$newvalue])	1455	=item $view_start = $term->view_start ([$newvalue])
709		1456
710	Returns the negative row number of the topmost line. Minimum value is	1457	Returns the row number of the topmost displayed line. Maximum value is
711	C<0>, which displays the normal terminal contents. Larger values scroll	1458	C<0>, which displays the normal terminal contents. Lower values scroll
712	this many lines into the scrollback buffer.	1459	this many lines into the scrollback buffer.
713		1460
714	=item $term->want_refresh	1461	=item $term->want_refresh
715		1462
716	Requests a screen refresh. At the next opportunity, rxvt-unicode will	1463	Requests a screen refresh. At the next opportunity, rxvt-unicode will
…		…
731	line, starting at column C<$start_col> (default C<0>), which is useful	1478	line, starting at column C<$start_col> (default C<0>), which is useful
732	to replace only parts of a line. The font index in the rendition will	1479	to replace only parts of a line. The font index in the rendition will
733	automatically be updated.	1480	automatically be updated.
734		1481
735	C<$text> is in a special encoding: tabs and wide characters that use more	1482	C<$text> is in a special encoding: tabs and wide characters that use more
736	than one cell when displayed are padded with urxvt::NOCHAR characters	1483	than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
737	(C<chr 65535>). Characters with combining characters and other characters	1484	characters. Characters with combining characters and other characters that
738	that do not fit into the normal tetx encoding will be replaced with	1485	do not fit into the normal tetx encoding will be replaced with characters
739	characters in the private use area.	1486	in the private use area.
740		1487
741	You have to obey this encoding when changing text. The advantage is	1488	You have to obey this encoding when changing text. The advantage is
742	that C<substr> and similar functions work on screen cells and not on	1489	that C<substr> and similar functions work on screen cells and not on
743	characters.	1490	characters.
744		1491
…		…
795	Return the row number of the first/last row of the line, respectively.	1542	Return the row number of the first/last row of the line, respectively.
796		1543
797	=item $offset = $line->offset_of ($row, $col)	1544	=item $offset = $line->offset_of ($row, $col)
798		1545
799	Returns the character offset of the given row|col pair within the logical	1546	Returns the character offset of the given row|col pair within the logical
800	line.	1547	line. Works for rows outside the line, too, and returns corresponding
		1548	offsets outside the string.
801		1549
802	=item ($row, $col) = $line->coord_of ($offset)	1550	=item ($row, $col) = $line->coord_of ($offset)
803		1551
804	Translates a string offset into terminal coordinates again.	1552	Translates a string offset into terminal coordinates again.
805		1553
806	=back	1554	=back
807		1555
808	=cut	1556	=cut
809		1557
810	sub urxvt::term::line {	1558	sub line {
811	my ($self, $row) = @_;	1559	my ($self, $row) = @_;
812		1560
813	my $maxrow = $self->nrow - 1;	1561	my $maxrow = $self->nrow - 1;
814		1562
815	my ($beg, $end) = ($row, $row);	1563	my ($beg, $end) = ($row, $row);
…		…
879	$offset / $self->{ncol} + $self->{beg},	1627	$offset / $self->{ncol} + $self->{beg},
880	$offset % $self->{ncol}	1628	$offset % $self->{ncol}
881	)	1629	)
882	}	1630	}
883		1631
884	=item ($row, $col) = $line->coord_of ($offset)
885	=item $text = $term->special_encode $string	1632	=item $text = $term->special_encode $string
886		1633
887	Converts a perl string into the special encoding used by rxvt-unicode,	1634	Converts a perl string into the special encoding used by rxvt-unicode,
888	where one character corresponds to one screen cell. See	1635	where one character corresponds to one screen cell. See
889	C<< $term->ROW_t >> for details.	1636	C<< $term->ROW_t >> for details.
…		…
891	=item $string = $term->special_decode $text	1638	=item $string = $term->special_decode $text
892		1639
893	Converts rxvt-unicodes text reprsentation into a perl string. See	1640	Converts rxvt-unicodes text reprsentation into a perl string. See
894	C<< $term->ROW_t >> for details.	1641	C<< $term->ROW_t >> for details.
895		1642
		1643	=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
		1644
		1645	=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
		1646
		1647	Register/unregister a synchronous button grab. See the XGrabButton
		1648	manpage.
		1649
		1650	=item $success = $term->grab ($eventtime[, $sync])
		1651
		1652	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
		1653	synchronous (C<$sync> is true). Also remembers the grab timestampe.
		1654
		1655	=item $term->allow_events_async
		1656
		1657	Calls XAllowEvents with AsyncBoth for the most recent grab.
		1658
		1659	=item $term->allow_events_sync
		1660
		1661	Calls XAllowEvents with SyncBoth for the most recent grab.
		1662
		1663	=item $term->allow_events_replay
		1664
		1665	Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
		1666	recent grab.
		1667
		1668	=item $term->ungrab
		1669
		1670	Calls XUngrab for the most recent grab. Is called automatically on
		1671	evaluation errors, as it is better to lose the grab in the error case as
		1672	the session.
		1673
		1674	=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
		1675
		1676	=item $atom_name = $term->XGetAtomName ($atom)
		1677
		1678	=item @atoms = $term->XListProperties ($window)
		1679
		1680	=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
		1681
		1682	=item $term->XChangeWindowProperty ($window, $property, $type, $format, $octets)
		1683
		1684	=item $term->XDeleteProperty ($window, $property)
		1685
		1686	=item $window = $term->DefaultRootWindow
		1687
		1688	=item $term->XReparentWindow ($window, $parent, [$x, $y])
		1689
		1690	=item $term->XMapWindow ($window)
		1691
		1692	=item $term->XUnmapWindow ($window)
		1693
		1694	=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
		1695
		1696	=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
		1697
		1698	=item $term->XChangeInput ($window, $add_events[, $del_events])
		1699
		1700	Various X or X-related functions. The C<$term> object only serves as
		1701	the source of the display, otherwise those functions map more-or-less
		1702	directory onto the X functions of the same name.
		1703
896	=back	1704	=back
		1705
		1706	=cut
		1707
		1708	package urxvt::popup;
		1709
		1710	=head2 The C<urxvt::popup> Class
		1711
		1712	=over 4
		1713
		1714	=cut
		1715
		1716	sub add_item {
		1717	my ($self, $item) = @_;
		1718
		1719	$item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal};
		1720	$item->{rend}{hover} = "\x1b[0;30;46m" unless exists $item->{rend}{hover};
		1721	$item->{rend}{active} = "\x1b[m" unless exists $item->{rend}{active};
		1722
		1723	$item->{render} ||= sub { $_[0]{text} };
		1724
		1725	push @{ $self->{item} }, $item;
		1726	}
		1727
		1728	=item $popup->add_title ($title)
		1729
		1730	Adds a non-clickable title to the popup.
		1731
		1732	=cut
		1733
		1734	sub add_title {
		1735	my ($self, $title) = @_;
		1736
		1737	$self->add_item ({
		1738	rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
		1739	text => $title,
		1740	activate => sub { },
		1741	});
		1742	}
		1743
		1744	=item $popup->add_separator ([$sepchr])
		1745
		1746	Creates a separator, optionally using the character given as C<$sepchr>.
		1747
		1748	=cut
		1749
		1750	sub add_separator {
		1751	my ($self, $sep) = @_;
		1752
		1753	$sep ||= "=";
		1754
		1755	$self->add_item ({
		1756	rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
		1757	text => "",
		1758	render => sub { $sep x $self->{term}->ncol },
		1759	activate => sub { },
		1760	});
		1761	}
		1762
		1763	=item $popup->add_button ($text, $cb)
		1764
		1765	Adds a clickable button to the popup. C<$cb> is called whenever it is
		1766	selected.
		1767
		1768	=cut
		1769
		1770	sub add_button {
		1771	my ($self, $text, $cb) = @_;
		1772
		1773	$self->add_item ({ type => "button", text => $text, activate => $cb});
		1774	}
		1775
		1776	=item $popup->add_toggle ($text, $cb, $initial_value)
		1777
		1778	Adds a toggle/checkbox item to the popup. Teh callback gets called
		1779	whenever it gets toggled, with a boolean indicating its value as its first
		1780	argument.
		1781
		1782	=cut
		1783
		1784	sub add_toggle {
		1785	my ($self, $text, $cb, $value) = @_;
		1786
		1787	my $item; $item = {
		1788	type => "button",
		1789	text => " $text",
		1790	value => $value,
		1791	render => sub { ($_[0]{value} ? "* " : " ") . $text },
		1792	activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
		1793	};
		1794
		1795	$self->add_item ($item);
		1796	}
		1797
		1798	=item $popup->show
		1799
		1800	Displays the popup (which is initially hidden).
		1801
		1802	=cut
		1803
		1804	sub show {
		1805	my ($self) = @_;
		1806
		1807	local $urxvt::popup::self = $self;
		1808
		1809	my $env = $self->{term}->env;
		1810	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
		1811	delete $env->{LC_ALL};
		1812	$env->{LC_CTYPE} = $self->{term}->locale;
		1813
		1814	urxvt::term->new ($env, "popup",
		1815	"--perl-lib" => "", "--perl-ext-common" => "",
		1816	"-pty-fd" => -1, "-sl" => 0,
		1817	"-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
		1818	"--transient-for" => $self->{term}->parent,
		1819	"-display" => $self->{term}->display_id,
		1820	"-pe" => "urxvt-popup")
		1821	or die "unable to create popup window\n";
		1822	}
		1823
		1824	sub DESTROY {
		1825	my ($self) = @_;
		1826
		1827	delete $self->{term}{_destroy}{$self};
		1828	$self->{term}->ungrab;
		1829	}
		1830
		1831	=back
		1832
		1833	=cut
		1834
		1835	package urxvt::watcher;
		1836
		1837	@urxvt::timer::ISA = __PACKAGE__;
		1838	@urxvt::iow::ISA = __PACKAGE__;
		1839	@urxvt::pw::ISA = __PACKAGE__;
		1840	@urxvt::iw::ISA = __PACKAGE__;
897		1841
898	=head2 The C<urxvt::timer> Class	1842	=head2 The C<urxvt::timer> Class
899		1843
900	This class implements timer watchers/events. Time is represented as a	1844	This class implements timer watchers/events. Time is represented as a
901	fractional number of seconds since the epoch. Example:	1845	fractional number of seconds since the epoch. Example:
…		…
940		1884
941	=item $timer = $timer->start ($tstamp)	1885	=item $timer = $timer->start ($tstamp)
942		1886
943	Set the event trigger time to C<$tstamp> and start the timer.	1887	Set the event trigger time to C<$tstamp> and start the timer.
944		1888
		1889	=item $timer = $timer->after ($delay)
		1890
		1891	Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
		1892
945	=item $timer = $timer->stop	1893	=item $timer = $timer->stop
946		1894
947	Stop the timer.	1895	Stop the timer.
948		1896
949	=back	1897	=back
…		…
954		1902
955	$term->{socket} = ...	1903	$term->{socket} = ...
956	$term->{iow} = urxvt::iow	1904	$term->{iow} = urxvt::iow
957	->new	1905	->new
958	->fd (fileno $term->{socket})	1906	->fd (fileno $term->{socket})
959	->events (1) # wait for read data	1907	->events (urxvt::EVENT_READ)
960	->start	1908	->start
961	->cb (sub {	1909	->cb (sub {
962	my ($iow, $revents) = @_;	1910	my ($iow, $revents) = @_;
963	# $revents must be 1 here, no need to check	1911	# $revents must be 1 here, no need to check
964	sysread $term->{socket}, my $buf, 8192	1912	sysread $term->{socket}, my $buf, 8192
…		…
981		1929
982	Set the filedescriptor (not handle) to watch.	1930	Set the filedescriptor (not handle) to watch.
983		1931
984	=item $iow = $iow->events ($eventmask)	1932	=item $iow = $iow->events ($eventmask)
985		1933
986	Set the event mask to watch. Bit #0 (value C<1>) enables watching for read	1934	Set the event mask to watch. The only allowed values are
987	data, Bit #1 (value C<2>) enables watching for write data.	1935	C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed
		1936	together, or C<urxvt::EVENT_NONE>.
988		1937
989	=item $iow = $iow->start	1938	=item $iow = $iow->start
990		1939
991	Start watching for requested events on the given handle.	1940	Start watching for requested events on the given handle.
992		1941
993	=item $iow = $iow->stop	1942	=item $iow = $iow->stop
994		1943
995	Stop watching for events on the given filehandle.	1944	Stop watching for events on the given filehandle.
		1945
		1946	=back
		1947
		1948	=head2 The C<urxvt::iw> Class
		1949
		1950	This class implements idle watchers, that get called automatically when
		1951	the process is idle. They should return as fast as possible, after doing
		1952	some useful work.
		1953
		1954	=over 4
		1955
		1956	=item $iw = new urxvt::iw
		1957
		1958	Create a new idle watcher object in stopped state.
		1959
		1960	=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
		1961
		1962	Set the callback to be called when the watcher triggers.
		1963
		1964	=item $timer = $timer->start
		1965
		1966	Start the watcher.
		1967
		1968	=item $timer = $timer->stop
		1969
		1970	Stop the watcher.
		1971
		1972	=back
		1973
		1974	=head2 The C<urxvt::pw> Class
		1975
		1976	This class implements process watchers. They create an event whenever a
		1977	process exits, after which they stop automatically.
		1978
		1979	my $pid = fork;
		1980	...
		1981	$term->{pw} = urxvt::pw
		1982	->new
		1983	->start ($pid)
		1984	->cb (sub {
		1985	my ($pw, $exit_status) = @_;
		1986	...
		1987	});
		1988
		1989	=over 4
		1990
		1991	=item $pw = new urxvt::pw
		1992
		1993	Create a new process watcher in stopped state.
		1994
		1995	=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
		1996
		1997	Set the callback to be called when the timer triggers.
		1998
		1999	=item $pw = $timer->start ($pid)
		2000
		2001	Tells the wqtcher to start watching for process C<$pid>.
		2002
		2003	=item $pw = $pw->stop
		2004
		2005	Stop the watcher.
996		2006
997	=back	2007	=back
998		2008
999	=head1 ENVIRONMENT	2009	=head1 ENVIRONMENT
1000		2010
…		…
1003	This variable controls the verbosity level of the perl extension. Higher	2013	This variable controls the verbosity level of the perl extension. Higher
1004	numbers indicate more verbose output.	2014	numbers indicate more verbose output.
1005		2015
1006	=over 4	2016	=over 4
1007		2017
1008	=item =0 - only fatal messages	2018	=item == 0 - fatal messages
1009		2019
1010	=item =3 - script loading and management	2020	=item >= 3 - script loading and management
1011		2021
1012	=item =10 - all events received	2022	=item >=10 - all called hooks
		2023
		2024	=item >=11 - hook reutrn values
1013		2025
1014	=back	2026	=back
1015		2027
1016	=head1 AUTHOR	2028	=head1 AUTHOR
1017		2029

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