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Revision 1.22 by root, Tue Jan 3 19:10:54 2006 UTC vs.
Revision 1.130 by root, Wed Jan 25 15:32:48 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 etxension tries to be more intelligent when the user	48	(More) intelligent selection. This extension tries to be more intelligent
45	extends selections (double-click).	49	when the user extends selections (double-click and further clicks). Right
		50	now, it tries to select words, urls and complete shell-quoted
		51	arguments, which is very convenient, too, if your F<ls> supports
		52	C<--quoting-style=shell>.
46		53
47	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:
48		83
49	=over 4	84	=over 4
50		85
51	=item rot13	86	=item rot13
52		87
…		…
54		89
55	URxvt.keysym.C-M-r: perl:selection:rot13	90	URxvt.keysym.C-M-r: perl:selection:rot13
56		91
57	=back	92	=back
58		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
59	=item digital-clock	243	=item digital-clock
60		244
61	Displays a digital clock using the built-in overlay.	245	Displays a digital clock using the built-in overlay.
		246
		247	=item remote-clipboard
		248
		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/%
62		295
63	=item example-refresh-hooks	296	=item example-refresh-hooks
64		297
65	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
66	window. Illustrates overwriting the refresh callbacks to create your own	299	window. Illustrates overwriting the refresh callbacks to create your own
67	overlays or changes.	300	overlays or changes.
68		301
69	=back	302	=back
70		303
		304	=head1 API DOCUMENTATION
		305
71	=head2 General API Considerations	306	=head2 General API Considerations
72		307
73	All objects (such as terminals, time watchers etc.) are typical	308	All objects (such as terminals, time watchers etc.) are typical
74	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
75	like. All members starting with an underscore (such as C<_ptr> or	310	like. All members starting with an underscore (such as C<_ptr> or
76	C<_hook>) are reserved for internal uses and must not be accessed or	311	C<_hook>) are reserved for internal uses and B<MUST NOT> be accessed or
77	modified).	312	modified).
78		313
79	When objects are destroyed on the C++ side, the perl object hashes are	314	When objects are destroyed on the C++ side, the perl object hashes are
80	emptied, so its best to store related objects such as time watchers and	315	emptied, so its best to store related objects such as time watchers and
81	the like inside the terminal object so they get destroyed as soon as the	316	the like inside the terminal object so they get destroyed as soon as the
82	terminal is destroyed.	317	terminal is destroyed.
83		318
		319	Argument names also often indicate the type of a parameter. Here are some
		320	hints on what they mean:
		321
		322	=over 4
		323
		324	=item $text
		325
		326	Rxvt-unicodes special way of encoding text, where one "unicode" character
		327	always represents one screen cell. See L<ROW_t> for a discussion of this format.
		328
		329	=item $string
		330
		331	A perl text string, with an emphasis on I<text>. It can store all unicode
		332	characters and is to be distinguished with text encoded in a specific
		333	encoding (often locale-specific) and binary data.
		334
		335	=item $octets
		336
		337	Either binary data or - more common - a text string encoded in a
		338	locale-specific way.
		339
		340	=back
		341
		342	=head2 Extension Objects
		343
		344	Very perl extension is a perl class. A separate perl object is created
		345	for each terminal and each extension and passed as the first parameter to
		346	hooks. So extensions can use their C<$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
84	=head2 Hooks	375	=head2 Hooks
85		376
86	The following subroutines can be declared in loaded scripts, and will be called	377	The following subroutines can be declared in extension files, and will be
87	whenever the relevant event happens.	378	called whenever the relevant event happens.
88		379
89	All of them must return a boolean value. If it is true, then the event	380	The first argument passed to them is an extension oject as described in
90	counts as being I<consumed>, and the invocation of other hooks is skipped,	381	the in the C<Extension Objects> section.
		382
		383	B<All> of these hooks must return a boolean value. If any of the called
		384	hooks returns true, then the event counts as being I<consumed>, and the
91	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.
92		386
93	When in doubt, return a false value (preferably C<()>).	387	I<< When in doubt, return a false value (preferably C<()>). >>
94		388
95	=over 4	389	=over 4
96		390
97	=item on_init $term	391	=item on_init $term
98		392
99	Called after a new terminal object has been initialized, but before	393	Called after a new terminal object has been initialized, but before
100	windows are created or the command gets run.	394	windows are created or the command gets run. Most methods are unsafe to
		395	call or deliver senseless data, as terminal size and other characteristics
		396	have not yet been determined. You can safely query and change resources
		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).
101		409
102	=item on_reset $term	410	=item on_reset $term
103		411
104	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
105	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
106	variables.	414	variables.
107		415
108	=item on_start $term	416	=item on_child_start $term, $pid
109		417
110	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.
111	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>.
112		424
113	=item on_sel_make $term, $eventtime	425	=item on_sel_make $term, $eventtime
114		426
115	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
116	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
…		…
130	=item on_sel_extend $term	442	=item on_sel_extend $term
131		443
132	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
133	click) and is either supposed to return false (normal operation), or	445	click) and is either supposed to return false (normal operation), or
134	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
135	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.
136		450
137	See the F<selection> example extension.	451	See the F<selection> example extension.
138
139	=item on_focus_in $term
140
141	Called whenever the window gets the keyboard focus, before urxvt does
142	focus in processing.
143
144	=item on_focus_out $term
145
146	Called wheneever the window loses keyboard focus, before urxvt does focus
147	out processing.
148		452
149	=item on_view_change $term, $offset	453	=item on_view_change $term, $offset
150		454
151	Called whenever the view offset changes, i..e the user or program	455	Called whenever the view offset changes, i..e the user or program
152	scrolls. Offset C<0> means display the normal terminal, positive values	456	scrolls. Offset C<0> means display the normal terminal, positive values
…		…
160		464
161	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,	465	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
162	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total	466	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
163	number of lines that will be in the scrollback buffer.	467	number of lines that will be in the scrollback buffer.
164		468
165	=item on_tty_activity $term *NYI*	469	=item on_osc_seq $term, $string
166		470
167	Called whenever the program(s) running in the urxvt window send output.	471	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
		472	operating system command) is processed. Cursor position and other state
		473	information is up-to-date when this happens. For interoperability, the
		474	string should start with the extension name and a colon, to distinguish
		475	it from commands for other extensions, and this might be enforced in the
		476	future.
		477
		478	Be careful not ever to trust (in a security sense) the data you receive,
		479	as its source can not easily be controleld (e-mail content, messages from
		480	other users on the same system etc.).
		481
		482	=item on_add_lines $term, $string
		483
		484	Called whenever text is about to be output, with the text as argument. You
		485	can filter/change and output the text yourself by returning a true value
		486	and calling C<< $term->scr_add_lines >> yourself. Please note that this
		487	might be very slow, however, as your hook is called for B<all> text being
		488	output.
		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
		495	=item on_line_update $term, $row
		496
		497	Called whenever a line was updated or changed. Can be used to filter
		498	screen output (e.g. underline urls or other useless stuff). Only lines
		499	that are being shown will be filtered, and, due to performance reasons,
		500	not always immediately.
		501
		502	The row number is always the topmost row of the line if the line spans
		503	multiple rows.
		504
		505	Please note that, if you change the line, then the hook might get called
		506	later with the already-modified line (e.g. if unrelated parts change), so
		507	you cannot just toggle rendition bits, but only set them.
168		508
169	=item on_refresh_begin $term	509	=item on_refresh_begin $term
170		510
171	Called just before the screen gets redrawn. Can be used for overlay	511	Called just before the screen gets redrawn. Can be used for overlay
172	or similar effects by modify terminal contents in refresh_begin, and	512	or similar effects by modify terminal contents in refresh_begin, and
…		…
175		515
176	=item on_refresh_end $term	516	=item on_refresh_end $term
177		517
178	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>.
179		519
180	=item on_keyboard_command $term, $string	520	=item on_user_command $term, $string
181		521
182	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
183	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>
184	resource in the @@RXVT_NAME@@(1) manpage).	524	resource in the @@RXVT_NAME@@(1) manpage).
		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
		584	=back
		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
		611	=head2 Variables in the C<urxvt> Package
		612
		613	=over 4
		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
		628	=item $urxvt::TERM
		629
		630	The current terminal. This variable stores the current C<urxvt::term>
		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>.
185		648
186	=back	649	=back
187		650
188	=head2 Functions in the C<urxvt> Package	651	=head2 Functions in the C<urxvt> Package
189		652
…		…
202	that calls this function.	665	that calls this function.
203		666
204	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
205	correct place, e.g. on stderr of the connecting urxvtc client.	668	correct place, e.g. on stderr of the connecting urxvtc client.
206		669
		670	Messages have a size limit of 1023 bytes currently.
		671
207	=item $time = urxvt::NOW	672	=item $time = urxvt::NOW
208		673
209	Returns the "current time" (as per the event loop).	674	Returns the "current time" (as per the event loop).
		675
		676	=item urxvt::CurrentTime
		677
		678	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
		679	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
		680	Button4Mask, Button5Mask, AnyModifier
		681
		682	=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
		683	ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
		684	PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
		685	Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
		686	KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
		687	ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
		688	FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
		689
		690	=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
		691	EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
		692	GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
		693	UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
		694	ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
		695	CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
		696	SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
		697
		698	Various constants for use in X calls and event processing.
210		699
211	=back	700	=back
212		701
213	=head2 RENDITION	702	=head2 RENDITION
214		703
…		…
241		730
242	=item $background = urxvt::GET_BASEBG $rend	731	=item $background = urxvt::GET_BASEBG $rend
243		732
244	Return the foreground/background colour index, respectively.	733	Return the foreground/background colour index, respectively.
245		734
246	=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)	735	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
247		736
248	=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)	737	=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
249		738
250	Replace the foreground/background colour in the rendition mask with the	739	Replace the foreground/background colour in the rendition mask with the
251	specified one.	740	specified one.
252		741
253	=item $value = urxvt::GET_CUSTOM ($rend)	742	=item $value = urxvt::GET_CUSTOM $rend
254		743
255	Return the "custom" value: Every rendition has 5 bits for use by	744	Return the "custom" value: Every rendition has 5 bits for use by
256	extensions. They can be set and changed as you like and are initially	745	extensions. They can be set and changed as you like and are initially
257	zero.	746	zero.
258		747
259	=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)	748	=item $rend = urxvt::SET_CUSTOM $rend, $new_value
260		749
261	Change the custom value.	750	Change the custom value.
262		751
263	=back	752	=back
264		753
265	=cut	754	=cut
266		755
267	package urxvt;
268
269	use strict;
270
271	our $term;
272	our @HOOKNAME;
273	our $LIBDIR;
274
275	BEGIN {	756	BEGIN {
276	urxvt->bootstrap;
277
278	# overwrite perl's warn	757	# overwrite perl's warn
279	*CORE::GLOBAL::warn = sub {	758	*CORE::GLOBAL::warn = sub {
280	my $msg = join "", @_;	759	my $msg = join "", @_;
281	$msg .= "\n"	760	$msg .= "\n"
282	unless $msg =~ /\n$/;	761	unless $msg =~ /\n$/;
283	urxvt::warn ($msg);	762	urxvt::warn ($msg);
284	};	763	};
285	}	764	}
286		765
287	my @hook_count;	766	no warnings 'utf8';
		767
288	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};	768	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
289		769
290	sub verbose {	770	sub verbose {
291	my ($level, $msg) = @_;	771	my ($level, $msg) = @_;
292	warn "$msg\n" if $level <= $verbosity;	772	warn "$msg\n" if $level <= $verbosity;
293	}	773	}
294		774
295	# find on_xxx subs in the package and register them	775	my %extension_pkg;
296	# as hooks
297	sub register_package($) {
298	my ($pkg) = @_;
299
300	for my $htype (0.. $#HOOKNAME) {
301	my $name = $HOOKNAME[$htype];
302
303	my $ref = $pkg->can ("on_" . lc $name)
304	or next;
305
306	$term->{_hook}[$htype]{$ref*1} = $ref;
307	$hook_count[$htype]++
308	or set_should_invoke $htype, 1;
309	}
310	}
311
312	my $script_pkg = "script0000";
313	my %script_pkg;
314		776
315	# load a single script into its own package, once only	777	# load a single script into its own package, once only
316	sub script_package($) {	778	sub extension_package($) {
317	my ($path) = @_;	779	my ($path) = @_;
318		780
319	$script_pkg{$path} ||= do {	781	$extension_pkg{$path} ||= do {
320	my $pkg = "urxvt::" . ($script_pkg++);	782	$path =~ /([^\/\\]+)$/;
		783	my $pkg = $1;
		784	$pkg =~ s/[^[:word:]]/_/g;
		785	$pkg = "urxvt::ext::$pkg";
321		786
322	verbose 3, "loading script '$path' into package '$pkg'";	787	verbose 3, "loading extension '$path' into package '$pkg'";
323		788
324	open my $fh, "<:raw", $path	789	open my $fh, "<:raw", $path
325	or die "$path: $!";	790	or die "$path: $!";
326		791
327	my $source = "package $pkg; use strict; use utf8;\n"	792	my $source =
		793	"package $pkg; use strict; use utf8; no warnings 'utf8';\n"
328	. "#line 1 \"$path\"\n{\n"	794	. "#line 1 \"$path\"\n{\n"
329	. (do { local $/; <$fh> })	795	. (do { local $/; <$fh> })
330	. "\n};\n1";	796	. "\n};\n1";
331		797
		798	eval $source
332	eval $source or die "$path: $@";	799	or die "$path: $@";
333		800
334	$pkg	801	$pkg
335	}	802	}
336	}	803	}
337		804
		805	our $retval; # return value for urxvt
		806
338	# called by the rxvt core	807	# called by the rxvt core
339	sub invoke {	808	sub invoke {
340	local $term = shift;	809	local $TERM = shift;
341	my $htype = shift;	810	my $htype = shift;
342		811
343	if ($htype == 0) { # INIT	812	if ($htype == 0) { # INIT
344	my @dirs = ((split /:/, $term->resource ("perl_lib")), "$LIBDIR/perl");	813	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
		814
		815	my %ext_arg;
345		816
346	for my $ext (split /:/, $term->resource ("perl_ext")) {	817	{
		818	my @init = @TERM_INIT;
		819	@TERM_INIT = ();
		820	$_->($TERM) for @init;
		821	my @pkg = @TERM_EXT;
		822	@TERM_EXT = ();
		823	$TERM->register_package ($_) for @pkg;
		824	}
		825
		826	for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
		827	if ($_ eq "default") {
		828	$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
		829	} elsif (/^-(.*)$/) {
		830	delete $ext_arg{$1};
		831	} elsif (/^([^<]+)<(.*)>$/) {
		832	push @{ $ext_arg{$1} }, $2;
		833	} else {
		834	$ext_arg{$_} ||= [];
		835	}
		836	}
		837
		838	while (my ($ext, $argv) = each %ext_arg) {
347	my @files = grep -f $_, map "$_/$ext", @dirs;	839	my @files = grep -f $_, map "$_/$ext", @dirs;
348		840
349	if (@files) {	841	if (@files) {
350	register_package script_package $files[0];	842	$TERM->register_package (extension_package $files[0], $argv);
351	} else {	843	} else {
352	warn "perl extension '$ext' not found in perl library search path\n";	844	warn "perl extension '$ext' not found in perl library search path\n";
353	}	845	}
354	}	846	}
355		847
356	} elsif ($htype == 1) { # DESTROY	848	eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval");
357	if (my $hook = $term->{_hook}) {	849	warn $@ if $@;
358	for my $htype (0..$#$hook) {	850	}
359	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }	851
360	or set_should_invoke $htype, 0;	852	$retval = undef;
		853
		854	if (my $cb = $TERM->{_hook}[$htype]) {
		855	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
		856	if $verbosity >= 10;
		857
		858	keys %$cb;
		859
		860	while (my ($pkg, $cb) = each %$cb) {
		861	my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
		862	$retval ||= $retval_;
		863
		864	if ($@) {
		865	$TERM->ungrab; # better to lose the grab than the session
		866	warn $@;
361	}	867	}
362	}	868	}
		869
		870	verbose 11, "$HOOKNAME[$htype] returning <$retval>"
		871	if $verbosity >= 11;
363	}	872	}
364		873
365	my $cb = $term->{_hook}[$htype]	874	if ($htype == 1) { # DESTROY
366	or return;	875	# clear package objects
		876	%$_ = () for values %{ $TERM->{_pkg} };
367		877
368	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $term, @_) . ")"	878	# clear package
369	if $verbosity >= 10;	879	%$TERM = ();
370
371	while (my ($k, $v) = each %$cb) {
372	return 1 if $v->($term, @_);
373	}	880	}
374		881
		882	$retval
		883	}
		884
		885	# urxvt::term::extension
		886
		887	package urxvt::term::extension;
		888
		889	sub enable {
		890	my ($self, %hook) = @_;
		891	my $pkg = $self->{_pkg};
		892
		893	while (my ($name, $cb) = each %hook) {
		894	my $htype = $HOOKTYPE{uc $name};
		895	defined $htype
		896	or Carp::croak "unsupported hook type '$name'";
		897
		898	$self->set_should_invoke ($htype, +1)
		899	unless exists $self->{term}{_hook}[$htype]{$pkg};
		900
		901	$self->{term}{_hook}[$htype]{$pkg} = $cb;
375	0	902	}
376	}	903	}
		904
		905	sub disable {
		906	my ($self, @hook) = @_;
		907	my $pkg = $self->{_pkg};
		908
		909	for my $name (@hook) {
		910	my $htype = $HOOKTYPE{uc $name};
		911	defined $htype
		912	or Carp::croak "unsupported hook type '$name'";
		913
		914	$self->set_should_invoke ($htype, -1)
		915	if delete $self->{term}{_hook}[$htype]{$pkg};
		916	}
		917	}
		918
		919	our $AUTOLOAD;
		920
		921	sub AUTOLOAD {
		922	$AUTOLOAD =~ /:([^:]+)$/
		923	or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
		924
		925	eval qq{
		926	sub $AUTOLOAD {
		927	my \$proxy = shift;
		928	\$proxy->{term}->$1 (\@_)
		929	}
		930	1
		931	} or die "FATAL: unable to compile method forwarder: $@";
		932
		933	goto &$AUTOLOAD;
		934	}
		935
		936	sub DESTROY {
		937	# nop
		938	}
		939
		940	# urxvt::destroy_hook
		941
		942	sub urxvt::destroy_hook::DESTROY {
		943	${$_[0]}->();
		944	}
		945
		946	sub urxvt::destroy_hook(&) {
		947	bless \shift, urxvt::destroy_hook::
		948	}
		949
		950	package urxvt::anyevent;
		951
		952	=head2 The C<urxvt::anyevent> Class
		953
		954	The sole purpose of this class is to deliver an interface to the
		955	C<AnyEvent> module - any module using it will work inside urxvt without
		956	further programming. The only exception is that you cannot wait on
		957	condition variables, but non-blocking condvar use is ok. What this means
		958	is that you cannot use blocking APIs, but the non-blocking variant should
		959	work.
		960
		961	=cut
		962
		963	our $VERSION = 1;
		964
		965	$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
		966	push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
		967
		968	sub timer {
		969	my ($class, %arg) = @_;
		970
		971	my $cb = $arg{cb};
		972
		973	urxvt::timer
		974	->new
		975	->start (urxvt::NOW + $arg{after})
		976	->cb (sub {
		977	$_[0]->stop; # need to cancel manually
		978	$cb->();
		979	})
		980	}
		981
		982	sub io {
		983	my ($class, %arg) = @_;
		984
		985	my $cb = $arg{cb};
		986
		987	bless [$arg{fh}, urxvt::iow
		988	->new
		989	->fd (fileno $arg{fh})
		990	->events (($arg{poll} =~ /r/ ? 1 : 0)
		991	| ($arg{poll} =~ /w/ ? 2 : 0))
		992	->start
		993	->cb (sub {
		994	$cb->(($_[1] & 1 ? 'r' : '')
		995	. ($_[1] & 2 ? 'w' : ''));
		996	})],
		997	urxvt::anyevent::
		998	}
		999
		1000	sub DESTROY {
		1001	$_[0][1]->stop;
		1002	}
		1003
		1004	sub condvar {
		1005	bless \my $flag, urxvt::anyevent::condvar::
		1006	}
		1007
		1008	sub urxvt::anyevent::condvar::broadcast {
		1009	${$_[0]}++;
		1010	}
		1011
		1012	sub urxvt::anyevent::condvar::wait {
		1013	unless (${$_[0]}) {
		1014	Carp::croak "AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API";
		1015	}
		1016	}
		1017
		1018	package urxvt::term;
377		1019
378	=head2 The C<urxvt::term> Class	1020	=head2 The C<urxvt::term> Class
379		1021
380	=over 4	1022	=over 4
		1023
		1024	=cut
		1025
		1026	# find on_xxx subs in the package and register them
		1027	# as hooks
		1028	sub register_package {
		1029	my ($self, $pkg, $argv) = @_;
		1030
		1031	no strict 'refs';
		1032
		1033	urxvt::verbose 6, "register package $pkg to $self";
		1034
		1035	@{"$pkg\::ISA"} = urxvt::term::extension::;
		1036
		1037	my $proxy = bless {
		1038	_pkg => $pkg,
		1039	argv => $argv,
		1040	}, $pkg;
		1041	Scalar::Util::weaken ($proxy->{term} = $self);
		1042
		1043	$self->{_pkg}{$pkg} = $proxy;
		1044
		1045	for my $name (@HOOKNAME) {
		1046	if (my $ref = $pkg->can ("on_" . lc $name)) {
		1047	$proxy->enable ($name => $ref);
		1048	}
		1049	}
		1050	}
		1051
		1052	=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
		1053
		1054	Creates a new terminal, very similar as if you had started it with system
		1055	C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
		1056	hash which defines the environment of the new terminal.
		1057
		1058	Croaks (and probably outputs an error message) if the new instance
		1059	couldn't be created. Returns C<undef> if the new instance didn't
		1060	initialise perl, and the terminal object otherwise. The C<init> and
		1061	C<start> hooks will be called during this call.
		1062
		1063	=cut
		1064
		1065	sub new {
		1066	my ($class, $env, @args) = @_;
		1067
		1068	_new ([ map "$_=$env->{$_}", keys %$env ], @args);
		1069	}
		1070
		1071	=item $term->destroy
		1072
		1073	Destroy the terminal object (close the window, free resources
		1074	etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
		1075	watchers (timers, io watchers) are still active.
		1076
		1077	=item $term->exec_async ($cmd[, @args])
		1078
		1079	Works like the combination of the C<fork>/C<exec> builtins, which executes
		1080	("starts") programs in the background. This function takes care of setting
		1081	the user environment before exec'ing the command (e.g. C<PATH>) and should
		1082	be preferred over explicit calls to C<exec> or C<system>.
		1083
		1084	Returns the pid of the subprocess or C<undef> on error.
		1085
		1086	=cut
		1087
		1088	sub exec_async {
		1089	my $self = shift;
		1090
		1091	my $pid = fork;
		1092
		1093	return $pid
		1094	if !defined $pid or $pid;
		1095
		1096	%ENV = %{ $self->env };
		1097
		1098	exec @_;
		1099	urxvt::_exit 255;
		1100	}
		1101
		1102	=item $isset = $term->option ($optval[, $set])
		1103
		1104	Returns true if the option specified by C<$optval> is enabled, and
		1105	optionally change it. All option values are stored by name in the hash
		1106	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
		1107
		1108	Here is a a likely non-exhaustive list of option names, please see the
		1109	source file F</src/optinc.h> to see the actual list:
		1110
		1111	borderLess console cursorBlink cursorUnderline hold iconic insecure
		1112	intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
		1113	override-redirect pastableTabs pointerBlank reverseVideo scrollBar
		1114	scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
		1115	scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
		1116	transparent tripleclickwords utmpInhibit visualBell
381		1117
382	=item $value = $term->resource ($name[, $newval])	1118	=item $value = $term->resource ($name[, $newval])
383		1119
384	Returns the current resource value associated with a given name and	1120	Returns the current resource value associated with a given name and
385	optionally sets a new value. Setting values is most useful in the C<init>	1121	optionally sets a new value. Setting values is most useful in the C<init>
…		…
395		1131
396	Please note that resource strings will currently only be freed when the	1132	Please note that resource strings will currently only be freed when the
397	terminal is destroyed, so changing options frequently will eat memory.	1133	terminal is destroyed, so changing options frequently will eat memory.
398		1134
399	Here is a a likely non-exhaustive list of resource names, not all of which	1135	Here is a a likely non-exhaustive list of resource names, not all of which
400	are supported in every build, please see the source to see the actual	1136	are supported in every build, please see the source file F</src/rsinc.h>
401	list:	1137	to see the actual list:
402		1138
403	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont	1139	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
404	borderLess color cursorBlink cursorUnderline cutchars delete_key	1140	borderLess color cursorBlink cursorUnderline cutchars delete_key
405	display_name embed ext_bwidth fade font geometry hold iconName	1141	display_name embed ext_bwidth fade font geometry hold iconName
406	imFont imLocale inputMethod insecure int_bwidth intensityStyles	1142	imFont imLocale inputMethod insecure int_bwidth intensityStyles
407	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier	1143	italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
408	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext	1144	mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
409	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd	1145	perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
410	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating	1146	preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
411	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput	1147	scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
412	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle	1148	scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
413	shade term_name title transparent transparent_all tripleclickwords	1149	secondaryScreen secondaryScroll selectstyle shade term_name title
414	utmpInhibit visualBell	1150	transient_for transparent transparent_all tripleclickwords utmpInhibit
		1151	visualBell
415		1152
416	=cut	1153	=cut
417		1154
418	sub urxvt::term::resource($$;$) {	1155	sub resource($$;$) {
419	my ($self, $name) = (shift, shift);	1156	my ($self, $name) = (shift, shift);
420	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);	1157	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
421	goto &urxvt::term::_resource;	1158	&urxvt::term::_resource
422	}	1159	}
		1160
		1161	=item $value = $term->x_resource ($pattern)
		1162
		1163	Returns the X-Resource for the given pattern, excluding the program or
		1164	class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
		1165	same value as used by this instance of rxvt-unicode. Returns C<undef> if no
		1166	resource with that pattern exists.
		1167
		1168	This method should only be called during the C<on_start> hook, as there is
		1169	only one resource database per display, and later invocations might return
		1170	the wrong resources.
		1171
		1172	=item $success = $term->parse_keysym ($keysym_spec, $command_string)
		1173
		1174	Adds a keymap translation exactly as specified via a resource. See the
		1175	C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
		1176
		1177	=item $rend = $term->rstyle ([$new_rstyle])
		1178
		1179	Return and optionally change the current rendition. Text that is output by
		1180	the terminal application will use this style.
		1181
		1182	=item ($row, $col) = $term->screen_cur ([$row, $col])
		1183
		1184	Return the current coordinates of the text cursor position and optionally
		1185	set it (which is usually bad as applications don't expect that).
423		1186
424	=item ($row, $col) = $term->selection_mark ([$row, $col])	1187	=item ($row, $col) = $term->selection_mark ([$row, $col])
425		1188
426	=item ($row, $col) = $term->selection_beg ([$row, $col])	1189	=item ($row, $col) = $term->selection_beg ([$row, $col])
427		1190
428	=item ($row, $col) = $term->selection_end ([$row, $col])	1191	=item ($row, $col) = $term->selection_end ([$row, $col])
429		1192
430	Return the current values of the selection mark, begin or end positions,	1193	Return the current values of the selection mark, begin or end positions,
431	and optionally set them to new values.	1194	and optionally set them to new values.
432		1195
		1196	=item $term->selection_make ($eventtime[, $rectangular])
		1197
		1198	Tries to make a selection as set by C<selection_beg> and
		1199	C<selection_end>. If C<$rectangular> is true (default: false), a
		1200	rectangular selection will be made. This is the prefered function to make
		1201	a selection.
		1202
433	=item $success = $term->selection_grab ($eventtime)	1203	=item $success = $term->selection_grab ($eventtime)
434		1204
435	Try to request the primary selection from the server (for example, as set	1205	Try to request the primary selection text from the server (for example, as
436	by the next method).	1206	set by the next method). No visual feedback will be given. This function
		1207	is mostly useful from within C<on_sel_grab> hooks.
437		1208
438	=item $oldtext = $term->selection ([$newtext])	1209	=item $oldtext = $term->selection ([$newtext])
439		1210
440	Return the current selection text and optionally replace it by C<$newtext>.	1211	Return the current selection text and optionally replace it by C<$newtext>.
441		1212
442	#=item $term->overlay ($x, $y, $text)	1213	=item $term->overlay_simple ($x, $y, $text)
443	#	1214
444	#Create a simple multi-line overlay box. See the next method for details.	1215	Create a simple multi-line overlay box. See the next method for details.
445	#	1216
446	#=cut	1217	=cut
447		1218
448	sub urxvt::term::scr_overlay {	1219	sub overlay_simple {
449	die;
450	my ($self, $x, $y, $text) = @_;	1220	my ($self, $x, $y, $text) = @_;
451		1221
452	my @lines = split /\n/, $text;	1222	my @lines = split /\n/, $text;
453		1223
454	my $w = 0;	1224	my $w = List::Util::max map $self->strwidth ($_), @lines;
455	for (map $self->strwidth ($_), @lines) {
456	$w = $_ if $w < $_;
457	}
458		1225
459	$self->scr_overlay_new ($x, $y, $w, scalar @lines);	1226	my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
460	$self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;	1227	$overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
		1228
		1229	$overlay
461	}	1230	}
462		1231
463	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])	1232	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
464		1233
465	Create a new (empty) overlay at the given position with the given	1234	Create a new (empty) overlay at the given position with the given
…		…
493		1262
494	If hidden, display the overlay again.	1263	If hidden, display the overlay again.
495		1264
496	=back	1265	=back
497		1266
		1267	=item $popup = $term->popup ($event)
		1268
		1269	Creates a new C<urxvt::popup> object that implements a popup menu. The
		1270	C<$event> I<must> be the event causing the menu to pop up (a button event,
		1271	currently).
		1272
		1273	=cut
		1274
		1275	sub popup {
		1276	my ($self, $event) = @_;
		1277
		1278	$self->grab ($event->{time}, 1)
		1279	or return;
		1280
		1281	my $popup = bless {
		1282	term => $self,
		1283	event => $event,
		1284	}, urxvt::popup::;
		1285
		1286	Scalar::Util::weaken $popup->{term};
		1287
		1288	$self->{_destroy}{$popup} = urxvt::destroy_hook { $popup->{popup}->destroy };
		1289	Scalar::Util::weaken $self->{_destroy}{$popup};
		1290
		1291	$popup
		1292	}
		1293
498	=item $cellwidth = $term->strwidth $string	1294	=item $cellwidth = $term->strwidth ($string)
499		1295
500	Returns the number of screen-cells this string would need. Correctly	1296	Returns the number of screen-cells this string would need. Correctly
501	accounts for wide and combining characters.	1297	accounts for wide and combining characters.
502		1298
503	=item $octets = $term->locale_encode $string	1299	=item $octets = $term->locale_encode ($string)
504		1300
505	Convert the given text string into the corresponding locale encoding.	1301	Convert the given text string into the corresponding locale encoding.
506		1302
507	=item $string = $term->locale_decode $octets	1303	=item $string = $term->locale_decode ($octets)
508		1304
509	Convert the given locale-encoded octets into a perl string.	1305	Convert the given locale-encoded octets into a perl string.
		1306
		1307	=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
		1308
		1309	XORs the rendition values in the given span with the provided value
		1310	(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
		1311	refresh hooks to provide effects similar to the selection.
		1312
		1313	=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
		1314
		1315	Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
		1316	whitespace will additionally be xored with the C<$rstyle2>, which defaults
		1317	to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
		1318	it instead. Both styles I<MUST NOT> contain font styles.
		1319
		1320	=item $term->scr_bell
		1321
		1322	Ring the bell!
		1323
		1324	=item $term->scr_add_lines ($string)
		1325
		1326	Write the given text string to the screen, as if output by the application
		1327	running inside the terminal. It may not contain command sequences (escape
		1328	codes), but is free to use line feeds, carriage returns and tabs. The
		1329	string is a normal text string, not in locale-dependent encoding.
		1330
		1331	Normally its not a good idea to use this function, as programs might be
		1332	confused by changes in cursor position or scrolling. Its useful inside a
		1333	C<on_add_lines> hook, though.
		1334
		1335	=item $term->scr_change_screen ($screen)
		1336
		1337	Switch to given screen - 0 primary, 1 secondary.
		1338
		1339	=item $term->cmd_parse ($octets)
		1340
		1341	Similar to C<scr_add_lines>, but the argument must be in the
		1342	locale-specific encoding of the terminal and can contain command sequences
		1343	(escape codes) that will be interpreted.
510		1344
511	=item $term->tt_write ($octets)	1345	=item $term->tt_write ($octets)
512		1346
513	Write the octets given in C<$data> to the tty (i.e. as program input). To	1347	Write the octets given in C<$data> to the tty (i.e. as program input). To
514	pass characters instead of octets, you should convert your strings first	1348	pass characters instead of octets, you should convert your strings first
515	to the locale-specific encoding using C<< $term->locale_encode >>.	1349	to the locale-specific encoding using C<< $term->locale_encode >>.
516		1350
		1351	=item $old_events = $term->pty_ev_events ([$new_events])
		1352
		1353	Replaces the event mask of the pty watcher by the given event mask. Can
		1354	be used to suppress input and output handling to the pty/tty. See the
		1355	description of C<< urxvt::timer->events >>. Make sure to always restore
		1356	the previous value.
		1357
		1358	=item $fd = $term->pty_fd
		1359
		1360	Returns the master file descriptor for the pty in use, or C<-1> if no pty
		1361	is used.
		1362
		1363	=item $windowid = $term->parent
		1364
		1365	Return the window id of the toplevel window.
		1366
		1367	=item $windowid = $term->vt
		1368
		1369	Return the window id of the terminal window.
		1370
		1371	=item $term->vt_emask_add ($x_event_mask)
		1372
		1373	Adds the specified events to the vt event mask. Useful e.g. when you want
		1374	to receive pointer events all the times:
		1375
		1376	$term->vt_emask_add (urxvt::PointerMotionMask);
		1377
		1378	=item $window_width = $term->width
		1379
		1380	=item $window_height = $term->height
		1381
		1382	=item $font_width = $term->fwidth
		1383
		1384	=item $font_height = $term->fheight
		1385
		1386	=item $font_ascent = $term->fbase
		1387
517	=item $nrow = $term->nrow	1388	=item $terminal_rows = $term->nrow
518		1389
519	=item $ncol = $term->ncol	1390	=item $terminal_columns = $term->ncol
520		1391
521	Return the number of rows/columns of the terminal window (i.e. as	1392	=item $has_focus = $term->focus
522	specified by C<-geometry>, excluding any scrollback).
523		1393
		1394	=item $is_mapped = $term->mapped
		1395
		1396	=item $max_scrollback = $term->saveLines
		1397
		1398	=item $nrow_plus_saveLines = $term->total_rows
		1399
		1400	=item $topmost_scrollback_row = $term->top_row
		1401
		1402	Return various integers describing terminal characteristics.
		1403
		1404	=item $x_display = $term->display_id
		1405
		1406	Return the DISPLAY used by rxvt-unicode.
		1407
		1408	=item $lc_ctype = $term->locale
		1409
		1410	Returns the LC_CTYPE category string used by this rxvt-unicode.
		1411
524	=item $nsaved = $term->nsaved	1412	=item $env = $term->env
525		1413
526	Returns the number of lines in the scrollback buffer.	1414	Returns a copy of the environment in effect for the terminal as a hashref
		1415	similar to C<\%ENV>.
		1416
		1417	=cut
		1418
		1419	sub env {
		1420	if (my $env = $_[0]->_env) {
		1421	+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), @$env }
		1422	} else {
		1423	+{ %ENV }
		1424	}
		1425	}
		1426
		1427	=item $modifiermask = $term->ModLevel3Mask
		1428
		1429	=item $modifiermask = $term->ModMetaMask
		1430
		1431	=item $modifiermask = $term->ModNumLockMask
		1432
		1433	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
		1434	AltGr), the meta key (often Alt) and the num lock key, if applicable.
		1435
		1436	=item $screen = $term->current_screen
		1437
		1438	Returns the currently displayed screen (0 primary, 1 secondary).
		1439
		1440	=item $cursor_is_hidden = $term->hidden_cursor
		1441
		1442	Returns wether the cursor is currently hidden or not.
527		1443
528	=item $view_start = $term->view_start ([$newvalue])	1444	=item $view_start = $term->view_start ([$newvalue])
529		1445
530	Returns the negative row number of the topmost line. Minimum value is	1446	Returns the row number of the topmost displayed line. Maximum value is
531	C<0>, which displays the normal terminal contents. Larger values scroll	1447	C<0>, which displays the normal terminal contents. Lower values scroll
532	this many lines into the scrollback buffer.	1448	this many lines into the scrollback buffer.
533		1449
534	=item $term->want_refresh	1450	=item $term->want_refresh
535		1451
536	Requests a screen refresh. At the next opportunity, rxvt-unicode will	1452	Requests a screen refresh. At the next opportunity, rxvt-unicode will
…		…
542	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])	1458	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
543		1459
544	Returns the text of the entire row with number C<$row_number>. Row C<0>	1460	Returns the text of the entire row with number C<$row_number>. Row C<0>
545	is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost	1461	is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost
546	terminal line. The scrollback buffer starts at line C<-1> and extends to	1462	terminal line. The scrollback buffer starts at line C<-1> and extends to
547	line C<< -$term->nsaved >>.	1463	line C<< -$term->nsaved >>. Nothing will be returned if a nonexistent line
		1464	is requested.
548		1465
549	If C<$new_text> is specified, it will replace characters in the current	1466	If C<$new_text> is specified, it will replace characters in the current
550	line, starting at column C<$start_col> (default C<0>), which is useful	1467	line, starting at column C<$start_col> (default C<0>), which is useful
551	to replace only parts of a line. The font index in the rendition will	1468	to replace only parts of a line. The font index in the rendition will
552	automatically be updated.	1469	automatically be updated.
553		1470
554	C<$text> is in a special encoding: tabs and wide characters that use more	1471	C<$text> is in a special encoding: tabs and wide characters that use more
555	than one cell when displayed are padded with urxvt::NOCHAR characters	1472	than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
556	(C<chr 65535>). Characters with combining characters and other characters	1473	characters. Characters with combining characters and other characters that
557	that do not fit into the normal tetx encoding will be replaced with	1474	do not fit into the normal tetx encoding will be replaced with characters
558	characters in the private use area.	1475	in the private use area.
559		1476
560	You have to obey this encoding when changing text. The advantage is	1477	You have to obey this encoding when changing text. The advantage is
561	that C<substr> and similar functions work on screen cells and not on	1478	that C<substr> and similar functions work on screen cells and not on
562	characters.	1479	characters.
563		1480
…		…
574		1491
575	See the section on RENDITION, above.	1492	See the section on RENDITION, above.
576		1493
577	=item $length = $term->ROW_l ($row_number[, $new_length])	1494	=item $length = $term->ROW_l ($row_number[, $new_length])
578		1495
579	Returns the number of screen cells that are in use ("the line length"). If	1496	Returns the number of screen cells that are in use ("the line
580	it is C<-1>, then the line is part of a multiple-row logical "line", which	1497	length"). Unlike the urxvt core, this returns C<< $term->ncol >> if the
581	means all characters are in use and it is continued on the next row.	1498	line is joined with the following one.
		1499
		1500	=item $bool = $term->is_longer ($row_number)
		1501
		1502	Returns true if the row is part of a multiple-row logical "line" (i.e.
		1503	joined with the following row), which means all characters are in use
		1504	and it is continued on the next row (and possibly a continuation of the
		1505	previous row(s)).
		1506
		1507	=item $line = $term->line ($row_number)
		1508
		1509	Create and return a new C<urxvt::line> object that stores information
		1510	about the logical line that row C<$row_number> is part of. It supports the
		1511	following methods:
		1512
		1513	=over 4
		1514
		1515	=item $text = $line->t ([$new_text])
		1516
		1517	Returns or replaces the full text of the line, similar to C<ROW_t>
		1518
		1519	=item $rend = $line->r ([$new_rend])
		1520
		1521	Returns or replaces the full rendition array of the line, similar to C<ROW_r>
		1522
		1523	=item $length = $line->l
		1524
		1525	Returns the length of the line in cells, similar to C<ROW_l>.
		1526
		1527	=item $rownum = $line->beg
		1528
		1529	=item $rownum = $line->end
		1530
		1531	Return the row number of the first/last row of the line, respectively.
		1532
		1533	=item $offset = $line->offset_of ($row, $col)
		1534
		1535	Returns the character offset of the given row|col pair within the logical
		1536	line. Works for rows outside the line, too, and returns corresponding
		1537	offsets outside the string.
		1538
		1539	=item ($row, $col) = $line->coord_of ($offset)
		1540
		1541	Translates a string offset into terminal coordinates again.
		1542
		1543	=back
		1544
		1545	=cut
		1546
		1547	sub line {
		1548	my ($self, $row) = @_;
		1549
		1550	my $maxrow = $self->nrow - 1;
		1551
		1552	my ($beg, $end) = ($row, $row);
		1553
		1554	--$beg while $self->ROW_is_longer ($beg - 1);
		1555	++$end while $self->ROW_is_longer ($end) && $end < $maxrow;
		1556
		1557	bless {
		1558	term => $self,
		1559	beg => $beg,
		1560	end => $end,
		1561	ncol => $self->ncol,
		1562	len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),
		1563	}, urxvt::line::
		1564	}
		1565
		1566	sub urxvt::line::t {
		1567	my ($self) = @_;
		1568
		1569	if (@_ > 1)
		1570	{
		1571	$self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
		1572	for $self->{beg} .. $self->{end};
		1573	}
		1574
		1575	defined wantarray &&
		1576	substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),
		1577	0, $self->{len}
		1578	}
		1579
		1580	sub urxvt::line::r {
		1581	my ($self) = @_;
		1582
		1583	if (@_ > 1)
		1584	{
		1585	$self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
		1586	for $self->{beg} .. $self->{end};
		1587	}
		1588
		1589	if (defined wantarray) {
		1590	my $rend = [
		1591	map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}
		1592	];
		1593	$#$rend = $self->{len} - 1;
		1594	return $rend;
		1595	}
		1596
		1597	()
		1598	}
		1599
		1600	sub urxvt::line::beg { $_[0]{beg} }
		1601	sub urxvt::line::end { $_[0]{end} }
		1602	sub urxvt::line::l { $_[0]{len} }
		1603
		1604	sub urxvt::line::offset_of {
		1605	my ($self, $row, $col) = @_;
		1606
		1607	($row - $self->{beg}) * $self->{ncol} + $col
		1608	}
		1609
		1610	sub urxvt::line::coord_of {
		1611	my ($self, $offset) = @_;
		1612
		1613	use integer;
		1614
		1615	(
		1616	$offset / $self->{ncol} + $self->{beg},
		1617	$offset % $self->{ncol}
		1618	)
		1619	}
582		1620
583	=item $text = $term->special_encode $string	1621	=item $text = $term->special_encode $string
584		1622
585	Converts a perl string into the special encoding used by rxvt-unicode,	1623	Converts a perl string into the special encoding used by rxvt-unicode,
586	where one character corresponds to one screen cell. See	1624	where one character corresponds to one screen cell. See
…		…
589	=item $string = $term->special_decode $text	1627	=item $string = $term->special_decode $text
590		1628
591	Converts rxvt-unicodes text reprsentation into a perl string. See	1629	Converts rxvt-unicodes text reprsentation into a perl string. See
592	C<< $term->ROW_t >> for details.	1630	C<< $term->ROW_t >> for details.
593		1631
		1632	=item $success = $term->grab_button ($button, $modifiermask)
		1633
		1634	Registers a synchronous button grab. See the XGrabButton manpage.
		1635
		1636	=item $success = $term->grab ($eventtime[, $sync])
		1637
		1638	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
		1639	synchronous (C<$sync> is true). Also remembers the grab timestampe.
		1640
		1641	=item $term->allow_events_async
		1642
		1643	Calls XAllowEvents with AsyncBoth for the most recent grab.
		1644
		1645	=item $term->allow_events_sync
		1646
		1647	Calls XAllowEvents with SyncBoth for the most recent grab.
		1648
		1649	=item $term->allow_events_replay
		1650
		1651	Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
		1652	recent grab.
		1653
		1654	=item $term->ungrab
		1655
		1656	Calls XUngrab for the most recent grab. Is called automatically on
		1657	evaluation errors, as it is better to lose the grab in the error case as
		1658	the session.
		1659
		1660	=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
		1661
		1662	=item $atom_name = $term->XGetAtomName ($atom)
		1663
		1664	=item @atoms = $term->XListProperties ($window)
		1665
		1666	=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
		1667
		1668	=item $term->XChangeWindowProperty ($window, $property, $type, $format, $octets)
		1669
		1670	=item $term->XDeleteProperty ($window, $property)
		1671
		1672	=item $window = $term->DefaultRootWindow
		1673
		1674	=item $term->XReparentWindow ($window, $parent, [$x, $y])
		1675
		1676	=item $term->XMapWindow ($window)
		1677
		1678	=item $term->XUnmapWindow ($window)
		1679
		1680	=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
		1681
		1682	=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
		1683
		1684	=item $term->XChangeInput ($window, $add_events[, $del_events])
		1685
		1686	Various X or X-related functions. The C<$term> object only serves as
		1687	the source of the display, otherwise those functions map more-or-less
		1688	directory onto the X functions of the same name.
		1689
594	=back	1690	=back
		1691
		1692	=cut
		1693
		1694	package urxvt::popup;
		1695
		1696	=head2 The C<urxvt::popup> Class
		1697
		1698	=over 4
		1699
		1700	=cut
		1701
		1702	sub add_item {
		1703	my ($self, $item) = @_;
		1704
		1705	$item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal};
		1706	$item->{rend}{hover} = "\x1b[0;30;46m" unless exists $item->{rend}{hover};
		1707	$item->{rend}{active} = "\x1b[m" unless exists $item->{rend}{active};
		1708
		1709	$item->{render} ||= sub { $_[0]{text} };
		1710
		1711	push @{ $self->{item} }, $item;
		1712	}
		1713
		1714	=item $popup->add_title ($title)
		1715
		1716	Adds a non-clickable title to the popup.
		1717
		1718	=cut
		1719
		1720	sub add_title {
		1721	my ($self, $title) = @_;
		1722
		1723	$self->add_item ({
		1724	rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
		1725	text => $title,
		1726	activate => sub { },
		1727	});
		1728	}
		1729
		1730	=item $popup->add_separator ([$sepchr])
		1731
		1732	Creates a separator, optionally using the character given as C<$sepchr>.
		1733
		1734	=cut
		1735
		1736	sub add_separator {
		1737	my ($self, $sep) = @_;
		1738
		1739	$sep ||= "=";
		1740
		1741	$self->add_item ({
		1742	rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
		1743	text => "",
		1744	render => sub { $sep x $self->{term}->ncol },
		1745	activate => sub { },
		1746	});
		1747	}
		1748
		1749	=item $popup->add_button ($text, $cb)
		1750
		1751	Adds a clickable button to the popup. C<$cb> is called whenever it is
		1752	selected.
		1753
		1754	=cut
		1755
		1756	sub add_button {
		1757	my ($self, $text, $cb) = @_;
		1758
		1759	$self->add_item ({ type => "button", text => $text, activate => $cb});
		1760	}
		1761
		1762	=item $popup->add_toggle ($text, $cb, $initial_value)
		1763
		1764	Adds a toggle/checkbox item to the popup. Teh callback gets called
		1765	whenever it gets toggled, with a boolean indicating its value as its first
		1766	argument.
		1767
		1768	=cut
		1769
		1770	sub add_toggle {
		1771	my ($self, $text, $cb, $value) = @_;
		1772
		1773	my $item; $item = {
		1774	type => "button",
		1775	text => " $text",
		1776	value => $value,
		1777	render => sub { ($_[0]{value} ? "* " : " ") . $text },
		1778	activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
		1779	};
		1780
		1781	$self->add_item ($item);
		1782	}
		1783
		1784	=item $popup->show
		1785
		1786	Displays the popup (which is initially hidden).
		1787
		1788	=cut
		1789
		1790	sub show {
		1791	my ($self) = @_;
		1792
		1793	local $urxvt::popup::self = $self;
		1794
		1795	my $env = $self->{term}->env;
		1796	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
		1797	delete $env->{LC_ALL};
		1798	$env->{LC_CTYPE} = $self->{term}->locale;
		1799
		1800	urxvt::term->new ($env, "popup",
		1801	"--perl-lib" => "", "--perl-ext-common" => "",
		1802	"-pty-fd" => -1, "-sl" => 0,
		1803	"-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
		1804	"--transient-for" => $self->{term}->parent,
		1805	"-display" => $self->{term}->display_id,
		1806	"-pe" => "urxvt-popup")
		1807	or die "unable to create popup window\n";
		1808	}
		1809
		1810	sub DESTROY {
		1811	my ($self) = @_;
		1812
		1813	delete $self->{term}{_destroy}{$self};
		1814	$self->{term}->ungrab;
		1815	}
		1816
		1817	=back
		1818
		1819	=cut
		1820
		1821	package urxvt::watcher;
		1822
		1823	@urxvt::timer::ISA = __PACKAGE__;
		1824	@urxvt::iow::ISA = __PACKAGE__;
		1825	@urxvt::pw::ISA = __PACKAGE__;
		1826	@urxvt::iw::ISA = __PACKAGE__;
595		1827
596	=head2 The C<urxvt::timer> Class	1828	=head2 The C<urxvt::timer> Class
597		1829
598	This class implements timer watchers/events. Time is represented as a	1830	This class implements timer watchers/events. Time is represented as a
599	fractional number of seconds since the epoch. Example:	1831	fractional number of seconds since the epoch. Example:
…		…
638		1870
639	=item $timer = $timer->start ($tstamp)	1871	=item $timer = $timer->start ($tstamp)
640		1872
641	Set the event trigger time to C<$tstamp> and start the timer.	1873	Set the event trigger time to C<$tstamp> and start the timer.
642		1874
		1875	=item $timer = $timer->after ($delay)
		1876
		1877	Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
		1878
643	=item $timer = $timer->stop	1879	=item $timer = $timer->stop
644		1880
645	Stop the timer.	1881	Stop the timer.
646		1882
647	=back	1883	=back
…		…
652		1888
653	$term->{socket} = ...	1889	$term->{socket} = ...
654	$term->{iow} = urxvt::iow	1890	$term->{iow} = urxvt::iow
655	->new	1891	->new
656	->fd (fileno $term->{socket})	1892	->fd (fileno $term->{socket})
657	->events (1) # wait for read data	1893	->events (urxvt::EVENT_READ)
658	->start	1894	->start
659	->cb (sub {	1895	->cb (sub {
660	my ($iow, $revents) = @_;	1896	my ($iow, $revents) = @_;
661	# $revents must be 1 here, no need to check	1897	# $revents must be 1 here, no need to check
662	sysread $term->{socket}, my $buf, 8192	1898	sysread $term->{socket}, my $buf, 8192
…		…
679		1915
680	Set the filedescriptor (not handle) to watch.	1916	Set the filedescriptor (not handle) to watch.
681		1917
682	=item $iow = $iow->events ($eventmask)	1918	=item $iow = $iow->events ($eventmask)
683		1919
684	Set the event mask to watch. Bit #0 (value C<1>) enables watching for read	1920	Set the event mask to watch. The only allowed values are
685	data, Bit #1 (value C<2>) enables watching for write data.	1921	C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed
		1922	together, or C<urxvt::EVENT_NONE>.
686		1923
687	=item $iow = $iow->start	1924	=item $iow = $iow->start
688		1925
689	Start watching for requested events on the given handle.	1926	Start watching for requested events on the given handle.
690		1927
691	=item $iow = $iow->stop	1928	=item $iow = $iow->stop
692		1929
693	Stop watching for events on the given filehandle.	1930	Stop watching for events on the given filehandle.
		1931
		1932	=back
		1933
		1934	=head2 The C<urxvt::iw> Class
		1935
		1936	This class implements idle watchers, that get called automatically when
		1937	the process is idle. They should return as fast as possible, after doing
		1938	some useful work.
		1939
		1940	=over 4
		1941
		1942	=item $iw = new urxvt::iw
		1943
		1944	Create a new idle watcher object in stopped state.
		1945
		1946	=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
		1947
		1948	Set the callback to be called when the watcher triggers.
		1949
		1950	=item $timer = $timer->start
		1951
		1952	Start the watcher.
		1953
		1954	=item $timer = $timer->stop
		1955
		1956	Stop the watcher.
		1957
		1958	=back
		1959
		1960	=head2 The C<urxvt::pw> Class
		1961
		1962	This class implements process watchers. They create an event whenever a
		1963	process exits, after which they stop automatically.
		1964
		1965	my $pid = fork;
		1966	...
		1967	$term->{pw} = urxvt::pw
		1968	->new
		1969	->start ($pid)
		1970	->cb (sub {
		1971	my ($pw, $exit_status) = @_;
		1972	...
		1973	});
		1974
		1975	=over 4
		1976
		1977	=item $pw = new urxvt::pw
		1978
		1979	Create a new process watcher in stopped state.
		1980
		1981	=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
		1982
		1983	Set the callback to be called when the timer triggers.
		1984
		1985	=item $pw = $timer->start ($pid)
		1986
		1987	Tells the wqtcher to start watching for process C<$pid>.
		1988
		1989	=item $pw = $pw->stop
		1990
		1991	Stop the watcher.
694		1992
695	=back	1993	=back
696		1994
697	=head1 ENVIRONMENT	1995	=head1 ENVIRONMENT
698		1996
…		…
701	This variable controls the verbosity level of the perl extension. Higher	1999	This variable controls the verbosity level of the perl extension. Higher
702	numbers indicate more verbose output.	2000	numbers indicate more verbose output.
703		2001
704	=over 4	2002	=over 4
705		2003
706	=item 0 - only fatal messages	2004	=item == 0 - fatal messages
707		2005
708	=item 3 - script loading and management	2006	=item >= 3 - script loading and management
709		2007
710	=item 10 - all events received	2008	=item >=10 - all called hooks
		2009
		2010	=item >=11 - hook reutrn values
711		2011
712	=back	2012	=back
713		2013
714	=head1 AUTHOR	2014	=head1 AUTHOR
715		2015

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