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Revision 1.20 by root, Tue Jan 3 04:18:47 2006 UTC vs.
Revision 1.236 by root, Sat May 17 17:12:29 2014 UTC

1	=encoding utf8	1	=encoding utf8
2		2
3	=head1 NAME	3	=head1 NAME
4		4
5	@@RXVT_NAME@@perl - rxvt-unicode's embedded perl interpreter	5	urxvtperl - rxvt-unicode's embedded perl interpreter
6		6
7	=head1 SYNOPSIS	7	=head1 SYNOPSIS
8		8
9	# create a file grab_test in $HOME:	9	# create a file grab_test in $HOME:
10		10
11	sub on_sel_grab {	11	sub on_sel_grab {
12	warn "you selected ", $_[0]->selection;	12	warn "you selected ", $_[0]->selection;
13	()	13	()
14	}	14	}
15		15
16	# start a @@RXVT_NAME@@ using it:	16	# start a urxvt using it:
17		17
18	@@RXVT_NAME@@ --perl-lib $HOME -pe grab_test	18	urxvt --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	Every time 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 "vars"' 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 urxvtd, 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	You can disable the embedded perl interpreter by setting both "perl-ext"
		32	and "perl-ext-common" resources to the empty string.
32		33
33	This section describes the extensiosn delivered with this version. You can	34	=head1 PREPACKAGED EXTENSIONS
34	find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.	35
		36	A number of extensions are delivered with this release. You can find them
		37	in F<< <libdir>/urxvt/perl/ >>, and the documentation can be viewed using
		38	F<< man urxvt-<EXTENSIONNAME> >>.
35		39
36	You can activate them like this:	40	You can activate them like this:
37		41
38	@@RXVT_NAME@@ -pe <extensionname>	42	urxvt -pe <extensionname>
39		43
40	=over 4	44	Or by adding them to the resource for extensions loaded by default:
41		45
42	=item selection	46	URxvt.perl-ext-common: default,selection-autotransform
43		47
44	Miscellaneous selection modifications.	48	Extensions that add command line parameters or resources on their own are
		49	loaded automatically when used.
45		50
46	=over 4	51	=head1 API DOCUMENTATION
47
48	=item rot13
49
50	Rot-13 the selection when activated. Used via keyboard trigger:
51
52	URxvt.keysym.C-M-r: perl:selection:rot13
53
54	=back
55
56	=item digital-clock
57
58	Displays a digital clock using the built-in overlay.
59
60	=item example-refresh-hooks
61
62	Displays a very simple digital clock in the upper right corner of the
63	window. Illustrates overwriting the refresh callbacks to create your own
64	overlays or changes.
65
66	=back
67		52
68	=head2 General API Considerations	53	=head2 General API Considerations
69		54
70	All objects (such as terminals, time watchers etc.) are typical	55	All objects (such as terminals, time watchers etc.) are typical
71	reference-to-hash objects. The hash can be used to store anything you	56	reference-to-hash objects. The hash can be used to store anything you
72	like. All members starting with an underscore (such as C<_ptr> or	57	like. All members starting with an underscore (such as C<_ptr> or
73	C<_hook>) are reserved for internal uses and must not be accessed or	58	C<_hook>) are reserved for internal uses and B<MUST NOT> be accessed or
74	modified).	59	modified).
75		60
76	When objects are destroyed on the C++ side, the perl object hashes are	61	When objects are destroyed on the C++ side, the perl object hashes are
77	emptied, so its best to store related objects such as time watchers and	62	emptied, so its best to store related objects such as time watchers and
78	the like inside the terminal object so they get destroyed as soon as the	63	the like inside the terminal object so they get destroyed as soon as the
79	terminal is destroyed.	64	terminal is destroyed.
80		65
		66	Argument names also often indicate the type of a parameter. Here are some
		67	hints on what they mean:
		68
		69	=over 4
		70
		71	=item $text
		72
		73	Rxvt-unicode's special way of encoding text, where one "unicode" character
		74	always represents one screen cell. See L<ROW_t> for a discussion of this format.
		75
		76	=item $string
		77
		78	A perl text string, with an emphasis on I<text>. It can store all unicode
		79	characters and is to be distinguished with text encoded in a specific
		80	encoding (often locale-specific) and binary data.
		81
		82	=item $octets
		83
		84	Either binary data or - more common - a text string encoded in a
		85	locale-specific way.
		86
		87	=item $keysym
		88
		89	an integer that is a valid X11 keysym code. You can convert a string
		90	into a keysym and viceversa by using C<XStringToKeysym> and
		91	C<XKeysymToString>.
		92
		93	=back
		94
		95	=head2 Extension Objects
		96
		97	Every perl extension is a perl class. A separate perl object is created
		98	for each terminal, and each terminal has its own set of extension objects,
		99	which are passed as the first parameter to hooks. So extensions can use
		100	their C<$self> object without having to think about clashes with other
		101	extensions or other terminals, with the exception of methods and members
		102	that begin with an underscore character C<_>: these are reserved for
		103	internal use.
		104
		105	Although it isn't a C<urxvt::term> object, you can call all methods of the
		106	C<urxvt::term> class on this object.
		107
		108	Additional methods only supported for extension objects are described in
		109	the C<urxvt::extension> section below.
		110
81	=head2 Hooks	111	=head2 Hooks
82		112
83	The following subroutines can be declared in loaded scripts, and will be called	113	The following subroutines can be declared in extension files, and will be
84	whenever the relevant event happens.	114	called whenever the relevant event happens.
85		115
86	All of them must return a boolean value. If it is true, then the event	116	The first argument passed to them is an extension object as described in
87	counts as being I<consumed>, and the invocation of other hooks is skipped,	117	the in the C<Extension Objects> section.
		118
		119	B<All> of these hooks must return a boolean value. If any of the called
		120	hooks returns true, then the event counts as being I<consumed>, and the
88	and the relevant action might not be carried out by the C++ code.	121	relevant action might not be carried out by the C++ code.
89		122
90	When in doubt, return a false value (preferably C<()>).	123	I<< When in doubt, return a false value (preferably C<()>). >>
91		124
92	=over 4	125	=over 4
93		126
94	=item on_init $term	127	=item on_init $term
95		128
96	Called after a new terminal object has been initialized, but before	129	Called after a new terminal object has been initialized, but before
97	windows are created or the command gets run.	130	windows are created or the command gets run. Most methods are unsafe to
		131	call or deliver senseless data, as terminal size and other characteristics
		132	have not yet been determined. You can safely query and change resources
		133	and options, though. For many purposes the C<on_start> hook is a better
		134	place.
		135
		136	=item on_start $term
		137
		138	Called at the very end of initialisation of a new terminal, just before
		139	trying to map (display) the toplevel and returning to the main loop.
		140
		141	=item on_destroy $term
		142
		143	Called whenever something tries to destroy terminal, when the terminal is
		144	still fully functional (not for long, though).
98		145
99	=item on_reset $term	146	=item on_reset $term
100		147
101	Called after the screen is "reset" for any reason, such as resizing or	148	Called after the screen is "reset" for any reason, such as resizing or
102	control sequences. Here is where you can react on changes to size-related	149	control sequences. Here is where you can react on changes to size-related
103	variables.	150	variables.
104		151
105	=item on_start $term	152	=item on_child_start $term, $pid
106		153
107	Called at the very end of initialisation of a new terminal, just before	154	Called just after the child process has been C<fork>ed.
108	returning to the mainloop.	155
		156	=item on_child_exit $term, $status
		157
		158	Called just after the child process has exited. C<$status> is the status
		159	from C<waitpid>.
109		160
110	=item on_sel_make $term, $eventtime	161	=item on_sel_make $term, $eventtime
111		162
112	Called whenever a selection has been made by the user, but before the	163	Called whenever a selection has been made by the user, but before the
113	selection text is copied, so changes to the beginning, end or type of the	164	selection text is copied, so changes to the beginning, end or type of the
…		…
120		171
121	Called whenever a selection has been copied, but before the selection is	172	Called whenever a selection has been copied, but before the selection is
122	requested from the server. The selection text can be queried and changed	173	requested from the server. The selection text can be queried and changed
123	by calling C<< $term->selection >>.	174	by calling C<< $term->selection >>.
124		175
125	Returning a true value aborts selection grabbing. It will still be hilighted.	176	Returning a true value aborts selection grabbing. It will still be highlighted.
126		177
127	=item on_focus_in $term	178	=item on_sel_extend $term
128		179
129	Called whenever the window gets the keyboard focus, before urxvt does	180	Called whenever the user tries to extend the selection (e.g. with a double
130	focus in processing.	181	click) and is either supposed to return false (normal operation), or
		182	should extend the selection itself and return true to suppress the built-in
		183	processing. This can happen multiple times, as long as the callback
		184	returns true, it will be called on every further click by the user and is
		185	supposed to enlarge the selection more and more, if possible.
131		186
132	=item on_focus_out $term	187	See the F<selection> example extension.
133
134	Called wheneever the window loses keyboard focus, before urxvt does focus
135	out processing.
136		188
137	=item on_view_change $term, $offset	189	=item on_view_change $term, $offset
138		190
139	Called whenever the view offset changes, i..e the user or program	191	Called whenever the view offset changes, i.e. the user or program
140	scrolls. Offset C<0> means display the normal terminal, positive values	192	scrolls. Offset C<0> means display the normal terminal, positive values
141	show this many lines of scrollback.	193	show this many lines of scrollback.
142		194
143	=item on_scroll_back $term, $lines, $saved	195	=item on_scroll_back $term, $lines, $saved
144		196
…		…
148		200
149	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,	201	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
150	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total	202	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
151	number of lines that will be in the scrollback buffer.	203	number of lines that will be in the scrollback buffer.
152		204
153	=item on_tty_activity $term *NYI*	205	=item on_osc_seq $term, $op, $args, $resp
154		206
155	Called whenever the program(s) running in the urxvt window send output.	207	Called on every OSC sequence and can be used to suppress it or modify its
		208	behaviour. The default should be to return an empty list. A true value
		209	suppresses execution of the request completely. Make sure you don't get
		210	confused by recursive invocations when you output an OSC sequence within
		211	this callback.
		212
		213	C<on_osc_seq_perl> should be used for new behaviour.
		214
		215	=item on_osc_seq_perl $term, $args, $resp
		216
		217	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
		218	operating system command) is processed. Cursor position and other state
		219	information is up-to-date when this happens. For interoperability, the
		220	string should start with the extension name (sans -osc) and a semicolon,
		221	to distinguish it from commands for other extensions, and this might be
		222	enforced in the future.
		223
		224	For example, C<overlay-osc> uses this:
		225
		226	sub on_osc_seq_perl {
		227	my ($self, $osc, $resp) = @_;
		228
		229	return unless $osc =~ s/^overlay;//;
		230
		231	... process remaining $osc string
		232	}
		233
		234	Be careful not ever to trust (in a security sense) the data you receive,
		235	as its source can not easily be controlled (e-mail content, messages from
		236	other users on the same system etc.).
		237
		238	For responses, C<$resp> contains the end-of-args separator used by the
		239	sender.
		240
		241	=item on_add_lines $term, $string
		242
		243	Called whenever text is about to be output, with the text as argument. You
		244	can filter/change and output the text yourself by returning a true value
		245	and calling C<< $term->scr_add_lines >> yourself. Please note that this
		246	might be very slow, however, as your hook is called for B<all> text being
		247	output.
		248
		249	=item on_tt_write $term, $octets
		250
		251	Called whenever some data is written to the tty/pty and can be used to
		252	suppress or filter tty input.
		253
		254	=item on_tt_paste $term, $octets
		255
		256	Called whenever text is about to be pasted, with the text as argument. You
		257	can filter/change and paste the text yourself by returning a true value
		258	and calling C<< $term->tt_paste >> yourself. C<$octets> is
		259	locale-encoded.
		260
		261	=item on_line_update $term, $row
		262
		263	Called whenever a line was updated or changed. Can be used to filter
		264	screen output (e.g. underline urls or other useless stuff). Only lines
		265	that are being shown will be filtered, and, due to performance reasons,
		266	not always immediately.
		267
		268	The row number is always the topmost row of the line if the line spans
		269	multiple rows.
		270
		271	Please note that, if you change the line, then the hook might get called
		272	later with the already-modified line (e.g. if unrelated parts change), so
		273	you cannot just toggle rendition bits, but only set them.
156		274
157	=item on_refresh_begin $term	275	=item on_refresh_begin $term
158		276
159	Called just before the screen gets redrawn. Can be used for overlay	277	Called just before the screen gets redrawn. Can be used for overlay or
160	or similar effects by modify terminal contents in refresh_begin, and	278	similar effects by modifying the terminal contents in refresh_begin, and
161	restoring them in refresh_end. The built-in overlay and selection display	279	restoring them in refresh_end. The built-in overlay and selection display
162	code is run after this hook, and takes precedence.	280	code is run after this hook, and takes precedence.
163		281
164	=item on_refresh_end $term	282	=item on_refresh_end $term
165		283
166	Called just after the screen gets redrawn. See C<on_refresh_begin>.	284	Called just after the screen gets redrawn. See C<on_refresh_begin>.
167		285
168	=item on_keyboard_command $term, $string	286	=item on_user_command $term, $string *DEPRECATED*
169		287
170	Called whenever the user presses a key combination that has a	288	Called whenever a user-configured event is being activated (e.g. via
171	C<perl:string> action bound to it (see description of the B<keysym>	289	a C<perl:string> action bound to a key, see description of the B<keysym>
172	resource in the @@RXVT_NAME@@(1) manpage).	290	resource in the urxvt(1) manpage).
		291
		292	The event is simply the action string. This interface is going away in
		293	preference to the C<on_action> hook.
		294
		295	=item on_resize_all_windows $term, $new_width, $new_height
		296
		297	Called just after the new window size has been calculated, but before
		298	windows are actually being resized or hints are being set. If this hook
		299	returns a true value, setting of the window hints is being skipped.
		300
		301	=item on_x_event $term, $event
		302
		303	Called on every X event received on the vt window (and possibly other
		304	windows). Should only be used as a last resort. Most event structure
		305	members are not passed.
		306
		307	=item on_root_event $term, $event
		308
		309	Like C<on_x_event>, but is called for events on the root window.
		310
		311	=item on_focus_in $term
		312
		313	Called whenever the window gets the keyboard focus, before rxvt-unicode
		314	does focus in processing.
		315
		316	=item on_focus_out $term
		317
		318	Called whenever the window loses keyboard focus, before rxvt-unicode does
		319	focus out processing.
		320
		321	=item on_configure_notify $term, $event
		322
		323	=item on_property_notify $term, $event
		324
		325	=item on_key_press $term, $event, $keysym, $octets
		326
		327	=item on_key_release $term, $event, $keysym
		328
		329	=item on_button_press $term, $event
		330
		331	=item on_button_release $term, $event
		332
		333	=item on_motion_notify $term, $event
		334
		335	=item on_map_notify $term, $event
		336
		337	=item on_unmap_notify $term, $event
		338
		339	Called whenever the corresponding X event is received for the terminal. If
		340	the hook returns true, then the event will be ignored by rxvt-unicode.
		341
		342	The event is a hash with most values as named by Xlib (see the XEvent
		343	manpage), with the additional members C<row> and C<col>, which are the
		344	(real, not screen-based) row and column under the mouse cursor.
		345
		346	C<on_key_press> additionally receives the string rxvt-unicode would
		347	output, if any, in locale-specific encoding.
		348
		349	=item on_client_message $term, $event
		350
		351	=item on_wm_protocols $term, $event
		352
		353	=item on_wm_delete_window $term, $event
		354
		355	Called when various types of ClientMessage events are received (all with
		356	format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
		357
		358	=item on_bell $term
		359
		360	Called on receipt of a bell character.
173		361
174	=back	362	=back
175		363
		364	=cut
		365
		366	package urxvt;
		367
		368	use utf8;
		369	use strict 'vars';
		370	use Carp ();
		371	use Scalar::Util ();
		372	use List::Util ();
		373
		374	our $VERSION = 1;
		375	our $TERM;
		376	our @TERM_INIT; # should go, prevents async I/O etc.
		377	our @TERM_EXT; # should go, prevents async I/O etc.
		378	our @HOOKNAME;
		379	our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
		380	our %OPTION;
		381
		382	our $LIBDIR;
		383	our $RESNAME;
		384	our $RESCLASS;
		385	our $RXVTNAME;
		386
		387	our $NOCHAR = chr 0xffff;
		388
		389	=head2 Variables in the C<urxvt> Package
		390
		391	=over 4
		392
		393	=item $urxvt::LIBDIR
		394
		395	The rxvt-unicode library directory, where, among other things, the perl
		396	modules and scripts are stored.
		397
		398	=item $urxvt::RESCLASS, $urxvt::RESCLASS
		399
		400	The resource class and name rxvt-unicode uses to look up X resources.
		401
		402	=item $urxvt::RXVTNAME
		403
		404	The basename of the installed binaries, usually C<urxvt>.
		405
		406	=item $urxvt::TERM
		407
		408	The current terminal. This variable stores the current C<urxvt::term>
		409	object, whenever a callback/hook is executing.
		410
		411	=item @urxvt::TERM_INIT
		412
		413	All code references in this array will be called as methods of the next newly
		414	created C<urxvt::term> object (during the C<on_init> phase). The array
		415	gets cleared before the code references that were in it are being executed,
		416	so references can push themselves onto it again if they so desire.
		417
		418	This complements to the perl-eval command line option, but gets executed
		419	first.
		420
		421	=item @urxvt::TERM_EXT
		422
		423	Works similar to C<@TERM_INIT>, but contains perl package/class names, which
		424	get registered as normal extensions after calling the hooks in C<@TERM_INIT>
		425	but before other extensions. Gets cleared just like C<@TERM_INIT>.
		426
		427	=back
		428
176	=head2 Functions in the C<urxvt> Package	429	=head2 Functions in the C<urxvt> Package
177		430
178	=over 4	431	=over 4
179		432
180	=item urxvt::fatal $errormessage	433	=item urxvt::fatal $errormessage
181		434
182	Fatally aborts execution with the given error message. Avoid at all	435	Fatally aborts execution with the given error message (which should
183	costs! The only time this is acceptable is when the terminal process	436	include a trailing newline). Avoid at all costs! The only time this
184	starts up.	437	is acceptable (and useful) is in the init hook, where it prevents the
		438	terminal from starting up.
185		439
186	=item urxvt::warn $string	440	=item urxvt::warn $string
187		441
188	Calls C<rxvt_warn> with the given string which should not include a	442	Calls C<rxvt_warn> with the given string which should include a trailing
189	newline. The module also overwrites the C<warn> builtin with a function	443	newline. The module also overwrites the C<warn> builtin with a function
190	that calls this function.	444	that calls this function.
191		445
192	Using this function has the advantage that its output ends up in the	446	Using this function has the advantage that its output ends up in the
193	correct place, e.g. on stderr of the connecting urxvtc client.	447	correct place, e.g. on stderr of the connecting urxvtc client.
194		448
		449	Messages have a size limit of 1023 bytes currently.
		450
		451	=item @terms = urxvt::termlist
		452
		453	Returns all urxvt::term objects that exist in this process, regardless of
		454	whether they are started, being destroyed etc., so be careful. Only term
		455	objects that have perl extensions attached will be returned (because there
		456	is no urxvt::term object associated with others).
		457
195	=item $time = urxvt::NOW	458	=item $time = urxvt::NOW
196		459
197	Returns the "current time" (as per the event loop).	460	Returns the "current time" (as per the event loop).
		461
		462	=item urxvt::CurrentTime
		463
		464	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
		465	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
		466	Button4Mask, Button5Mask, AnyModifier
		467
		468	=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
		469	ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
		470	PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
		471	Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
		472	KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
		473	ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
		474	FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
		475
		476	=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
		477	EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
		478	GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
		479	UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
		480	ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
		481	CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
		482	SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
		483
		484	Various constants for use in X calls and event processing.
		485
		486	=back
198		487
199	=head2 RENDITION	488	=head2 RENDITION
200		489
201	Rendition bitsets contain information about colour, font, font styles and	490	Rendition bitsets contain information about colour, font, font styles and
202	similar information for each screen cell.	491	similar information for each screen cell.
…		…
215		504
216	=item $rend = urxvt::OVERLAY_RSTYLE	505	=item $rend = urxvt::OVERLAY_RSTYLE
217		506
218	Return the rendition mask used for overlays by default.	507	Return the rendition mask used for overlays by default.
219		508
220	=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline	509	=item $rendbit = urxvt::RS_Bold, urxvt::RS_Italic, urxvt::RS_Blink,
		510	urxvt::RS_RVid, urxvt::RS_Uline
221		511
222	Return the bit that enabled bold, italic, blink, reverse-video and	512	Return the bit that enabled bold, italic, blink, reverse-video and
223	underline, respectively. To enable such a style, just logically OR it into	513	underline, respectively. To enable such a style, just logically OR it into
224	the bitset.	514	the bitset.
225		515
…		…
227		517
228	=item $background = urxvt::GET_BASEBG $rend	518	=item $background = urxvt::GET_BASEBG $rend
229		519
230	Return the foreground/background colour index, respectively.	520	Return the foreground/background colour index, respectively.
231		521
232	=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)	522	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
233		523
234	=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)	524	=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
		525
		526	=item $rend = urxvt::SET_COLOR $rend, $new_fg, $new_bg
235		527
236	Replace the foreground/background colour in the rendition mask with the	528	Replace the foreground/background colour in the rendition mask with the
237	specified one.	529	specified one.
238		530
239	=item $value = urxvt::GET_CUSTOM ($rend)	531	=item $value = urxvt::GET_CUSTOM $rend
240		532
241	Return the "custom" value: Every rendition has 5 bits for use by	533	Return the "custom" value: Every rendition has 5 bits for use by
242	extensions. They can be set and changed as you like and are initially	534	extensions. They can be set and changed as you like and are initially
243	zero.	535	zero.
244		536
245	=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)	537	=item $rend = urxvt::SET_CUSTOM $rend, $new_value
246		538
247	Change the custom value.	539	Change the custom value.
248		540
249	=back	541	=back
250		542
251	=cut	543	=cut
252		544
253	package urxvt;
254
255	use strict;
256
257	our $term;
258	our @HOOKNAME;
259	our $LIBDIR;
260
261	BEGIN {	545	BEGIN {
262	urxvt->bootstrap;
263
264	# overwrite perl's warn	546	# overwrite perl's warn
265	*CORE::GLOBAL::warn = sub {	547	*CORE::GLOBAL::warn = sub {
266	my $msg = join "", @_;	548	my $msg = join "", @_;
267	$msg .= "\n"	549	$msg .= "\n"
268	unless $msg =~ /\n$/;	550	unless $msg =~ /\n$/;
269	urxvt::warn ($msg);	551	urxvt::warn ($msg);
270	};	552	};
271	}	553	}
272		554
273	my @hook_count;	555	no warnings 'utf8';
		556
		557	sub parse_resource {
		558	my ($term, $name, $isarg, $longopt, $flag, $value) = @_;
		559
		560	$name =~ y/-/./ if $isarg;
		561
		562	$term->scan_extensions;
		563
		564	my $r = $term->{meta}{resource};
		565	keys %$r; # reset iterator
		566	while (my ($pattern, $v) = each %$r) {
		567	if (
		568	$pattern =~ /\.$/
		569	? $pattern eq substr $name, 0, length $pattern
		570	: $pattern eq $name
		571	) {
		572	$name = "$urxvt::RESCLASS.$name";
		573
		574	push @{ $term->{perl_ext_3} }, $v->[0];
		575
		576	if ($v->[1] eq "boolean") {
		577	$term->put_option_db ($name, $flag ? "true" : "false");
		578	return 1;
		579	} else {
		580	$term->put_option_db ($name, $value);
		581	return 1 + 2;
		582	}
		583	}
		584	}
		585
		586	0
		587	}
		588
		589	sub usage {
		590	my ($term, $usage_type) = @_;
		591
		592	$term->scan_extensions;
		593
		594	my $r = $term->{meta}{resource};
		595
		596	for my $pattern (sort keys %$r) {
		597	my ($ext, $type, $desc) = @{ $r->{$pattern} };
		598
		599	$desc .= " (-pe $ext)";
		600
		601	if ($usage_type == 1) {
		602	$pattern =~ y/./-/;
		603	$pattern =~ s/-$/-.../g;
		604
		605	if ($type eq "boolean") {
		606	urxvt::log sprintf " -%-30s %s\n", "/+$pattern", $desc;
		607	} else {
		608	urxvt::log sprintf " -%-30s %s\n", "$pattern $type", $desc;
		609	}
		610	} else {
		611	$pattern =~ s/\.$/.*/g;
		612	urxvt::log sprintf " %-31s %s\n", "$pattern:", $type;
		613	}
		614	}
		615	}
		616
274	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};	617	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
275		618
276	sub verbose {	619	sub verbose {
277	my ($level, $msg) = @_;	620	my ($level, $msg) = @_;
278	warn "$msg\n" if $level <= $verbosity;	621	warn "$msg\n" if $level <= $verbosity;
279	}	622	}
280		623
281	# find on_xxx subs in the package and register them	624	my %extension_pkg;
282	# as hooks
283	sub register_package($) {
284	my ($pkg) = @_;
285
286	for my $htype (0.. $#HOOKNAME) {
287	my $name = $HOOKNAME[$htype];
288
289	my $ref = $pkg->can ("on_" . lc $name)
290	or next;
291
292	$term->{_hook}[$htype]{$ref*1} = $ref;
293	$hook_count[$htype]++
294	or set_should_invoke $htype, 1;
295	}
296	}
297
298	my $script_pkg = "script0000";
299	my %script_pkg;
300		625
301	# load a single script into its own package, once only	626	# load a single script into its own package, once only
302	sub script_package($) {	627	sub extension_package($) {
303	my ($path) = @_;	628	my ($path) = @_;
304		629
305	$script_pkg{$path} ||= do {	630	$extension_pkg{$path} ||= do {
306	my $pkg = "urxvt::" . ($script_pkg++);	631	$path =~ /([^\/\\]+)$/;
		632	my $pkg = $1;
		633	$pkg =~ s/[^[:word:]]/_/g;
		634	$pkg = "urxvt::ext::$pkg";
307		635
308	verbose 3, "loading script '$path' into package '$pkg'";	636	verbose 3, "loading extension '$path' into package '$pkg'";
		637
		638	(${"$pkg\::_NAME"} = $path) =~ s/^.*[\\\/]//; # hackish
309		639
310	open my $fh, "<:raw", $path	640	open my $fh, "<:raw", $path
311	or die "$path: $!";	641	or die "$path: $!";
312		642
313	my $source = "package $pkg; use strict; use utf8;\n"	643	my $source =
		644	"package $pkg; use strict 'vars'; use utf8; no warnings 'utf8';\n"
314	. "#line 1 \"$path\"\n{\n"	645	. "#line 1 \"$path\"\n{\n"
315	. (do { local $/; <$fh> })	646	. (do { local $/; <$fh> })
316	. "\n};\n1";	647	. "\n};\n1";
317		648
		649	eval $source
318	eval $source or die "$path: $@";	650	or die "$path: $@";
319		651
320	$pkg	652	$pkg
321	}	653	}
322	}	654	}
323		655
		656	our $retval; # return value for urxvt
		657
324	# called by the rxvt core	658	# called by the rxvt core
325	sub invoke {	659	sub invoke {
326	local $term = shift;	660	local $TERM = shift;
327	my $htype = shift;	661	my $htype = shift;
328		662
329	if ($htype == 0) { # INIT	663	if ($htype == HOOK_INIT) {
330	my @dirs = ((split /:/, $term->resource ("perl_lib")), "$LIBDIR/perl");	664	my @dirs = $TERM->perl_libdirs;
331		665
332	for my $ext (split /:/, $term->resource ("perl_ext")) {	666	$TERM->scan_extensions;
		667
		668	my %ext_arg;
		669
		670	{
		671	my @init = @TERM_INIT;
		672	@TERM_INIT = ();
		673	$_->($TERM) for @init;
		674	my @pkg = @TERM_EXT;
		675	@TERM_EXT = ();
		676	$TERM->register_package ($_) for @pkg;
		677	}
		678
		679	for (
		680	@{ delete $TERM->{perl_ext_3} },
		681	grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2
		682	) {
		683	if ($_ eq "default") {
		684
		685	$ext_arg{$_} ||= []
		686	for
		687	qw(selection option-popup selection-popup readline),
		688	map $_->[0], values %{ $TERM->{meta}{binding} };
		689
		690	} elsif (/^-(.*)$/) {
		691	delete $ext_arg{$1};
		692
		693	} elsif (/^([^<]+)<(.*)>$/) {
		694	push @{ $ext_arg{$1} }, $2;
		695
		696	} else {
		697	$ext_arg{$_} ||= [];
		698	}
		699	}
		700
		701	# now register default key bindings
		702	while (my ($k, $v) = each %{ $TERM->{meta}{binding} }) {
		703	$TERM->bind_action ($k, "$v->[0]:$v->[1]");
		704	}
		705
		706	for my $ext (sort keys %ext_arg) {
333	my @files = grep -f $_, map "$_/$ext", @dirs;	707	my @files = grep -f $_, map "$_/$ext", @dirs;
334		708
335	if (@files) {	709	if (@files) {
336	register_package script_package $files[0];	710	$TERM->register_package (extension_package $files[0], $ext_arg{$ext});
337	} else {	711	} else {
338	warn "perl extension '$ext' not found in perl library search path\n";	712	warn "perl extension '$ext' not found in perl library search path\n";
339	}	713	}
340	}	714	}
341		715
342	} elsif ($htype == 1) { # DESTROY	716	eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval");
343	if (my $hook = $term->{_hook}) {	717	warn $@ if $@;
344	for my $htype (0..$#$hook) {	718	}
345	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }	719
346	or set_should_invoke $htype, 0;	720	$retval = undef;
		721
		722	if (my $cb = $TERM->{_hook}[$htype]) {
		723	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
		724	if $verbosity >= 10;
		725
		726	if ($htype == HOOK_ACTION) {
		727	# this hook is only sent to the extension with the name
		728	# matching the first arg
		729	my $pkg = shift;
		730	$pkg =~ y/-/_/;
		731	$pkg = "urxvt::ext::$pkg";
		732
		733	$cb = $cb->{$pkg}
		734	or return undef; #TODO: maybe warn user?
		735
		736	$cb = { $pkg => $cb };
		737	}
		738
		739	for my $pkg (keys %$cb) {
		740	my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg} || $TERM, @_) };
		741	$retval ||= $retval_;
		742
		743	if ($@) {
		744	$TERM->ungrab; # better to lose the grab than the session
		745	warn $@;
		746	}
		747	}
		748
		749	verbose 11, "$HOOKNAME[$htype] returning <$retval>"
		750	if $verbosity >= 11;
		751	}
		752
		753	if ($htype == HOOK_DESTROY) {
		754	# clear package objects
		755	%$_ = () for values %{ $TERM->{_pkg} };
		756
		757	# clear package
		758	%$TERM = ();
		759	}
		760
		761	$retval
		762	}
		763
		764	sub SET_COLOR($$$) {
		765	SET_BGCOLOR (SET_FGCOLOR ($_[0], $_[1]), $_[2])
		766	}
		767
		768	sub rend2mask {
		769	no strict 'refs';
		770	my ($str, $mask) = (@_, 0);
		771	my %color = ( fg => undef, bg => undef );
		772	my @failed;
		773	for my $spec ( split /\s+/, $str ) {
		774	if ( $spec =~ /^([fb]g)[_:-]?(\d+)/i ) {
		775	$color{lc($1)} = $2;
		776	} else {
		777	my $neg = $spec =~ s/^[-^]//;
		778	unless ( exists &{"RS_$spec"} ) {
		779	push @failed, $spec;
		780	next;
		781	}
		782	my $cur = &{"RS_$spec"};
		783	if ( $neg ) {
		784	$mask &= ~$cur;
		785	} else {
		786	$mask |= $cur;
347	}	787	}
348	}	788	}
349	}	789	}
		790	($mask, @color{qw(fg bg)}, \@failed)
		791	}
350		792
351	my $cb = $term->{_hook}[$htype]	793	package urxvt::term::extension;
352	or return;
353		794
354	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $term, @_) . ")"	795	=head2 The C<urxvt::term::extension> class
355	if $verbosity >= 10;
356		796
		797	Each extension attached to a terminal object is represented by
		798	a C<urxvt::term::extension> object.
		799
		800	You can use these objects, which are passed to all callbacks to store any
		801	state related to the terminal and extension instance.
		802
		803	The methods (And data members) documented below can be called on extension
		804	objects, in addition to call methods documented for the <urxvt::term>
		805	class.
		806
		807	=over 4
		808
		809	=item $urxvt_term = $self->{term}
		810
		811	Returns the C<urxvt::term> object associated with this instance of the
		812	extension. This member I<must not> be changed in any way.
		813
		814	=cut
		815
		816	our $AUTOLOAD;
		817
		818	sub AUTOLOAD {
		819	$AUTOLOAD =~ /:([^:]+)$/
		820	or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
		821
		822	eval qq{
		823	sub $AUTOLOAD {
		824	my \$proxy = shift;
		825	\$proxy->{term}->$1 (\@_)
		826	}
		827	1
		828	} or die "FATAL: unable to compile method forwarder: $@";
		829
		830	goto &$AUTOLOAD;
		831	}
		832
		833	sub DESTROY {
		834	# nop
		835	}
		836
		837	# urxvt::destroy_hook (basically a cheap Guard:: implementation)
		838
		839	sub urxvt::destroy_hook::DESTROY {
		840	${$_[0]}->();
		841	}
		842
		843	sub urxvt::destroy_hook(&) {
		844	bless \shift, urxvt::destroy_hook::
		845	}
		846
		847	=item $self->enable ($hook_name => $cb[, $hook_name => $cb..])
		848
		849	Dynamically enable the given hooks (named without the C<on_> prefix) for
		850	this extension, replacing any hook previously installed via C<enable> in
		851	this extension.
		852
		853	This is useful when you want to overwrite time-critical hooks only
		854	temporarily.
		855
		856	To install additional callbacks for the same hook, you can use the C<on>
		857	method of the C<urxvt::term> class.
		858
		859	=item $self->disable ($hook_name[, $hook_name..])
		860
		861	Dynamically disable the given hooks.
		862
		863	=cut
		864
		865	sub enable {
		866	my ($self, %hook) = @_;
		867	my $pkg = $self->{_pkg};
		868
357	while (my ($k, $v) = each %$cb) {	869	while (my ($name, $cb) = each %hook) {
358	return 1 if $v->($term, @_);	870	my $htype = $HOOKTYPE{uc $name};
		871	defined $htype
		872	or Carp::croak "unsupported hook type '$name'";
		873
		874	$self->set_should_invoke ($htype, +1)
		875	unless exists $self->{term}{_hook}[$htype]{$pkg};
		876
		877	$self->{term}{_hook}[$htype]{$pkg} = $cb;
359	}	878	}
		879	}
360		880
		881	sub disable {
		882	my ($self, @hook) = @_;
		883	my $pkg = $self->{_pkg};
		884
		885	for my $name (@hook) {
		886	my $htype = $HOOKTYPE{uc $name};
		887	defined $htype
		888	or Carp::croak "unsupported hook type '$name'";
		889
		890	$self->set_should_invoke ($htype, -1)
		891	if delete $self->{term}{_hook}[$htype]{$pkg};
361	0	892	}
		893	}
		894
		895	=item $guard = $self->on ($hook_name => $cb[, $hook_name => $cb..])
		896
		897	Similar to the C<enable> enable, but installs additional callbacks for
		898	the given hook(s) (that is, it doesn't replace existing callbacks), and
		899	returns a guard object. When the guard object is destroyed the callbacks
		900	are disabled again.
		901
		902	=cut
		903
		904	sub urxvt::extension::on_disable::DESTROY {
		905	my $disable = shift;
		906
		907	my $term = delete $disable->{""};
		908
		909	while (my ($htype, $id) = each %$disable) {
		910	delete $term->{_hook}[$htype]{$id};
		911	$term->set_should_invoke ($htype, -1);
		912	}
		913	}
		914
		915	sub on {
		916	my ($self, %hook) = @_;
		917
		918	my $term = $self->{term};
		919
		920	my %disable = ( "" => $term );
		921
		922	while (my ($name, $cb) = each %hook) {
		923	my $htype = $HOOKTYPE{uc $name};
		924	defined $htype
		925	or Carp::croak "unsupported hook type '$name'";
		926
		927	$term->set_should_invoke ($htype, +1);
		928	$term->{_hook}[$htype]{ $disable{$htype} = $cb+0 }
		929	= sub { shift; $cb->($self, @_) }; # very ugly indeed
		930	}
		931
		932	bless \%disable, "urxvt::extension::on_disable"
		933	}
		934
		935	=item $self->x_resource ($pattern)
		936
		937	=item $self->x_resource_boolean ($pattern)
		938
		939	These methods support an additional C<%> prefix when called on an
		940	extension object - see the description of these methods in the
		941	C<urxvt::term> class for details.
		942
		943	=cut
		944
		945	sub x_resource {
		946	my ($self, $name) = @_;
		947	$name =~ s/^%(\.|$)/$_[0]{_name}$1/;
		948	$self->{term}->x_resource ($name)
		949	}
		950
		951	sub x_resource_boolean {
		952	my ($self, $name) = @_;
		953	$name =~ s/^%(\.|$)/$_[0]{_name}$1/;
		954	$self->{term}->x_resource_boolean ($name)
362	}	955	}
363		956
364	=back	957	=back
365		958
		959	=cut
		960
		961	package urxvt::anyevent;
		962
		963	=head2 The C<urxvt::anyevent> Class
		964
		965	The sole purpose of this class is to deliver an interface to the
		966	C<AnyEvent> module - any module using it will work inside urxvt without
		967	further programming. The only exception is that you cannot wait on
		968	condition variables, but non-blocking condvar use is ok.
		969
		970	In practical terms this means is that you cannot use blocking APIs, but
		971	the non-blocking variant should work.
		972
		973	=cut
		974
		975	our $VERSION = '5.23';
		976
		977	$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
		978	push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
		979
		980	sub timer {
		981	my ($class, %arg) = @_;
		982
		983	my $cb = $arg{cb};
		984
		985	urxvt::timer
		986	->new
		987	->after ($arg{after}, $arg{interval})
		988	->cb ($arg{interval} ? $cb : sub {
		989	$_[0]->stop; # need to cancel manually
		990	$cb->();
		991	})
		992	}
		993
		994	sub io {
		995	my ($class, %arg) = @_;
		996
		997	my $cb = $arg{cb};
		998	my $fd = fileno $arg{fh};
		999	defined $fd or $fd = $arg{fh};
		1000
		1001	bless [$arg{fh}, urxvt::iow
		1002	->new
		1003	->fd ($fd)
		1004	->events (($arg{poll} =~ /r/ ? 1 : 0)
		1005	| ($arg{poll} =~ /w/ ? 2 : 0))
		1006	->start
		1007	->cb ($cb)
		1008	], urxvt::anyevent::
		1009	}
		1010
		1011	sub idle {
		1012	my ($class, %arg) = @_;
		1013
		1014	my $cb = $arg{cb};
		1015
		1016	urxvt::iw
		1017	->new
		1018	->start
		1019	->cb ($cb)
		1020	}
		1021
		1022	sub child {
		1023	my ($class, %arg) = @_;
		1024
		1025	my $cb = $arg{cb};
		1026
		1027	urxvt::pw
		1028	->new
		1029	->start ($arg{pid})
		1030	->cb (sub {
		1031	$_[0]->stop; # need to cancel manually
		1032	$cb->($_[0]->rpid, $_[0]->rstatus);
		1033	})
		1034	}
		1035
		1036	sub DESTROY {
		1037	$_[0][1]->stop;
		1038	}
		1039
		1040	# only needed for AnyEvent < 6 compatibility
		1041	sub one_event {
		1042	Carp::croak "AnyEvent->one_event blocking wait unsupported in urxvt, use a non-blocking API";
		1043	}
		1044
		1045	package urxvt::term;
		1046
366	=head2 The C<urxvt::term> Class	1047	=head2 The C<urxvt::term> Class
367		1048
368	=over 4	1049	=over 4
		1050
		1051	=cut
		1052
		1053	# find on_xxx subs in the package and register them
		1054	# as hooks
		1055	sub register_package {
		1056	my ($self, $pkg, $argv) = @_;
		1057
		1058	no strict 'refs';
		1059
		1060	urxvt::verbose 6, "register package $pkg to $self";
		1061
		1062	@{"$pkg\::ISA"} = urxvt::term::extension::;
		1063
		1064	my $proxy = bless {
		1065	_pkg => $pkg,
		1066	_name => ${"$pkg\::_NAME"}, # hackish
		1067	argv => $argv,
		1068	}, $pkg;
		1069	Scalar::Util::weaken ($proxy->{term} = $self);
		1070
		1071	$self->{_pkg}{$pkg} = $proxy;
		1072
		1073	for my $name (@HOOKNAME) {
		1074	if (my $ref = $pkg->can ("on_" . lc $name)) {
		1075	$proxy->enable ($name => $ref);
		1076	}
		1077	}
		1078	}
		1079
		1080	sub perl_libdirs {
		1081	map { split /:/ }
		1082	$_[0]->resource ("perl_lib"),
		1083	$ENV{URXVT_PERL_LIB},
		1084	"$ENV{HOME}/.urxvt/ext",
		1085	"$LIBDIR/perl"
		1086	}
		1087
		1088	# scan for available extensions and collect their metadata
		1089	sub scan_extensions {
		1090	my ($self) = @_;
		1091
		1092	return if exists $self->{meta};
		1093
		1094	my @libdirs = perl_libdirs $self;
		1095
		1096	# return if $self->{meta_libdirs} eq join "\x00", @libdirs;#d#
		1097
		1098	# $self->{meta_libdirs} = join "\x00", @libdirs;#d#
		1099	$self->{meta} = \my %meta;
		1100
		1101	# first gather extensions
		1102	for my $dir (reverse @libdirs) {
		1103	opendir my $fh, $dir
		1104	or next;
		1105	for my $ext (readdir $fh) {
		1106	$ext !~ /^\./
		1107	and open my $fh, "<", "$dir/$ext"
		1108	or next;
		1109
		1110	my %ext = (dir => $dir);
		1111
		1112	while (<$fh>) {
		1113	if (/^#:META:(?:X_)?RESOURCE:(.*)/) {
		1114	my ($pattern, $type, $desc) = split /:/, $1;
		1115	$pattern =~ s/^%(\.|$)/$ext$1/g; # % in pattern == extension name
		1116	if ($pattern =~ /[^a-zA-Z0-9\-\.]/) {
		1117	warn "$dir/$ext: meta resource '$pattern' contains illegal characters (not alphanumeric nor . nor *)\n";
		1118	} else {
		1119	$ext{resource}{$pattern} = [$ext, $type, $desc];
		1120	}
		1121	} elsif (/^#:META:BINDING:(.*)/) {
		1122	my ($keysym, $action) = split /:/, $1;
		1123	$ext{binding}{$keysym} = [$ext, $action];
		1124	} elsif (/^\s*(?:#|$)/) {
		1125	# skip other comments and empty lines
		1126	} else {
		1127	last; # stop parsing on first non-empty non-comment line
		1128	}
		1129	}
		1130
		1131	$meta{ext}{$ext} = \%ext;
		1132	}
		1133	}
		1134
		1135	# and now merge resources and bindings
		1136	while (my ($k, $v) = each %{ $meta{ext} }) {
		1137	#TODO: should check for extensions overriding each other
		1138	%{ $meta{resource} } = (%{ $meta{resource} }, %{ $v->{resource} });
		1139	%{ $meta{binding} } = (%{ $meta{binding} }, %{ $v->{binding} });
		1140	}
		1141	}
		1142
		1143	=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
		1144
		1145	Creates a new terminal, very similar as if you had started it with system
		1146	C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
		1147	hash which defines the environment of the new terminal.
		1148
		1149	Croaks (and probably outputs an error message) if the new instance
		1150	couldn't be created. Returns C<undef> if the new instance didn't
		1151	initialise perl, and the terminal object otherwise. The C<init> and
		1152	C<start> hooks will be called before this call returns, and are free to
		1153	refer to global data (which is race free).
		1154
		1155	=cut
		1156
		1157	sub new {
		1158	my ($class, $env, @args) = @_;
		1159
		1160	$env or Carp::croak "environment hash missing in call to urxvt::term->new";
		1161	@args or Carp::croak "name argument missing in call to urxvt::term->new";
		1162
		1163	_new ([ map "$_=$env->{$_}", keys %$env ], \@args);
		1164	}
		1165
		1166	=item $term->destroy
		1167
		1168	Destroy the terminal object (close the window, free resources
		1169	etc.). Please note that urxvt will not exit as long as any event
		1170	watchers (timers, io watchers) are still active.
		1171
		1172	=item $term->exec_async ($cmd[, @args])
		1173
		1174	Works like the combination of the C<fork>/C<exec> builtins, which executes
		1175	("starts") programs in the background. This function takes care of setting
		1176	the user environment before exec'ing the command (e.g. C<PATH>) and should
		1177	be preferred over explicit calls to C<exec> or C<system>.
		1178
		1179	Returns the pid of the subprocess or C<undef> on error.
		1180
		1181	=cut
		1182
		1183	sub exec_async {
		1184	my $self = shift;
		1185
		1186	my $pid = fork;
		1187
		1188	return $pid
		1189	if !defined $pid or $pid;
		1190
		1191	%ENV = %{ $self->env };
		1192
		1193	exec @_;
		1194	urxvt::_exit 255;
		1195	}
		1196
		1197	=item $isset = $term->option ($optval[, $set])
		1198
		1199	Returns true if the option specified by C<$optval> is enabled, and
		1200	optionally change it. All option values are stored by name in the hash
		1201	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
		1202
		1203	Here is a likely non-exhaustive list of option names, please see the
		1204	source file F</src/optinc.h> to see the actual list:
		1205
		1206	borderLess buffered console cursorBlink cursorUnderline hold iconic
		1207	insecure intensityStyles iso14755 iso14755_52 jumpScroll loginShell
		1208	mapAlert meta8 mouseWheelScrollPage override_redirect pastableTabs
		1209	pointerBlank reverseVideo scrollBar scrollBar_floating scrollBar_right
		1210	scrollTtyKeypress scrollTtyOutput scrollWithBuffer secondaryScreen
		1211	secondaryScroll skipBuiltinGlyphs skipScroll transparent tripleclickwords
		1212	urgentOnBell utmpInhibit visualBell
369		1213
370	=item $value = $term->resource ($name[, $newval])	1214	=item $value = $term->resource ($name[, $newval])
371		1215
372	Returns the current resource value associated with a given name and	1216	Returns the current resource value associated with a given name and
373	optionally sets a new value. Setting values is most useful in the C<init>	1217	optionally sets a new value. Setting values is most useful in the C<init>
…		…
382	likely change).	1226	likely change).
383		1227
384	Please note that resource strings will currently only be freed when the	1228	Please note that resource strings will currently only be freed when the
385	terminal is destroyed, so changing options frequently will eat memory.	1229	terminal is destroyed, so changing options frequently will eat memory.
386		1230
387	Here is a a likely non-exhaustive list of resource names, not all of which	1231	Here is a likely non-exhaustive list of resource names, not all of which
388	are supported in every build, please see the source to see the actual	1232	are supported in every build, please see the source file F</src/rsinc.h>
389	list:	1233	to see the actual list:
390		1234
391	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont	1235	answerbackstring backgroundPixmap backspace_key blurradius
392	borderLess color cursorBlink cursorUnderline cutchars delete_key	1236	boldFont boldItalicFont borderLess buffered chdir color cursorBlink
393	display_name embed ext_bwidth fade font geometry hold iconName	1237	cursorUnderline cutchars delete_key depth display_name embed ext_bwidth
394	imFont imLocale inputMethod insecure int_bwidth intensityStyles	1238	fade font geometry hold iconName iconfile imFont imLocale inputMethod
		1239	insecure int_bwidth intensityStyles iso14755 iso14755_52 italicFont
395	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier	1240	jumpScroll letterSpace lineSpace loginShell mapAlert meta8 modifier
396	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext	1241	mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
397	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd	1242	perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
398	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating	1243	preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
399	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput	1244	scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
400	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle	1245	scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
401	shade term_name title transparent transparent_all tripleclickwords	1246	secondaryScreen secondaryScroll shade skipBuiltinGlyphs skipScroll
		1247	term_name title transient_for transparent tripleclickwords urgentOnBell
402	utmpInhibit visualBell	1248	utmpInhibit visualBell
403		1249
404	=cut	1250	=cut
405		1251
406	sub urxvt::term::resource($$;$) {	1252	sub resource($$;$) {
407	my ($self, $name) = (shift, shift);	1253	my ($self, $name) = (shift, shift);
408	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);	1254	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
409	goto &urxvt::term::_resource;	1255	goto &urxvt::term::_resource
410	}	1256	}
		1257
		1258	=item $value = $term->x_resource ($pattern)
		1259
		1260	Returns the X-Resource for the given pattern, excluding the program or
		1261	class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
		1262	same value as used by this instance of rxvt-unicode. Returns C<undef> if no
		1263	resource with that pattern exists.
		1264
		1265	Extensions that define extra resource or command line arguments also need
		1266	to call this method to access their values.
		1267
		1268	If the method is called on an extension object (basically, from an
		1269	extension), then the special prefix C<%.> will be replaced by the name of
		1270	the extension and a dot, and the lone string C<%> will be replaced by the
		1271	extension name itself. This makes it possible to code extensions so you
		1272	can rename them and get a new set of commandline switches and resources
		1273	without having to change the actual code.
		1274
		1275	This method should only be called during the C<on_start> hook, as there is
		1276	only one resource database per display, and later invocations might return
		1277	the wrong resources.
		1278
		1279	=item $value = $term->x_resource_boolean ($pattern)
		1280
		1281	Like C<x_resource>, above, but interprets the string value as a boolean
		1282	and returns C<1> for true values, C<0> for false values and C<undef> if
		1283	the resource or option isn't specified.
		1284
		1285	You should always use this method to parse boolean resources.
		1286
		1287	=cut
		1288
		1289	sub x_resource_boolean {
		1290	my $res = &x_resource;
		1291
		1292	$res =~ /^\s*(?:true|yes|on|1)\s*$/i ? 1 : defined $res && 0
		1293	}
		1294
		1295	=item $success = $term->bind_action ($key, $octets)
		1296
		1297	Adds a key binding exactly as specified via a C<keysym> resource. See the
		1298	C<keysym> resource in the urxvt(1) manpage.
		1299
		1300	=item $rend = $term->rstyle ([$new_rstyle])
		1301
		1302	Return and optionally change the current rendition. Text that is output by
		1303	the terminal application will use this style.
		1304
		1305	=item ($row, $col) = $term->screen_cur ([$row, $col])
		1306
		1307	Return the current coordinates of the text cursor position and optionally
		1308	set it (which is usually bad as applications don't expect that).
411		1309
412	=item ($row, $col) = $term->selection_mark ([$row, $col])	1310	=item ($row, $col) = $term->selection_mark ([$row, $col])
413		1311
414	=item ($row, $col) = $term->selection_beg ([$row, $col])	1312	=item ($row, $col) = $term->selection_beg ([$row, $col])
415		1313
416	=item ($row, $col) = $term->selection_end ([$row, $col])	1314	=item ($row, $col) = $term->selection_end ([$row, $col])
417		1315
418	Return the current values of the selection mark, begin or end positions,	1316	Return the current values of the selection mark, begin or end positions.
419	and optionally set them to new values.
420		1317
		1318	When arguments are given, then the selection coordinates are set to
		1319	C<$row> and C<$col>, and the selection screen is set to the current
		1320	screen.
		1321
		1322	=item $screen = $term->selection_screen ([$screen])
		1323
		1324	Returns the current selection screen, and then optionally sets it.
		1325
		1326	=item $term->selection_make ($eventtime[, $rectangular])
		1327
		1328	Tries to make a selection as set by C<selection_beg> and
		1329	C<selection_end>. If C<$rectangular> is true (default: false), a
		1330	rectangular selection will be made. This is the preferred function to make
		1331	a selection.
		1332
421	=item $success = $term->selection_grab ($eventtime)	1333	=item $success = $term->selection_grab ($eventtime[, $clipboard])
422		1334
423	Try to request the primary selection from the server (for example, as set	1335	Try to acquire ownership of the primary (clipboard if C<$clipboard> is
424	by the next method).	1336	true) selection from the server. The corresponding text can be set
		1337	with the next method. No visual feedback will be given. This function
		1338	is mostly useful from within C<on_sel_grab> hooks.
425		1339
426	=item $oldtext = $term->selection ([$newtext])	1340	=item $oldtext = $term->selection ([$newtext, $clipboard])
427		1341
428	Return the current selection text and optionally replace it by C<$newtext>.	1342	Return the current selection (clipboard if C<$clipboard> is true) text
		1343	and optionally replace it by C<$newtext>.
429		1344
		1345	=item $term->selection_clear ([$clipboard])
		1346
		1347	Revoke ownership of the primary (clipboard if C<$clipboard> is true) selection.
		1348
430	#=item $term->overlay ($x, $y, $text)	1349	=item $term->overlay_simple ($x, $y, $text)
431	#	1350
432	#Create a simple multi-line overlay box. See the next method for details.	1351	Create a simple multi-line overlay box. See the next method for details.
433	#	1352
434	#=cut	1353	=cut
435		1354
436	sub urxvt::term::scr_overlay {	1355	sub overlay_simple {
437	die;
438	my ($self, $x, $y, $text) = @_;	1356	my ($self, $x, $y, $text) = @_;
439		1357
440	my @lines = split /\n/, $text;	1358	my @lines = split /\n/, $text;
441		1359
442	my $w = 0;	1360	my $w = List::Util::max map $self->strwidth ($_), @lines;
443	for (map $self->strwidth ($_), @lines) {
444	$w = $_ if $w < $_;
445	}
446		1361
447	$self->scr_overlay_new ($x, $y, $w, scalar @lines);	1362	my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
448	$self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;	1363	$overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
		1364
		1365	$overlay
449	}	1366	}
450		1367
451	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])	1368	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
452		1369
453	Create a new (empty) overlay at the given position with the given	1370	Create a new (empty) overlay at the given position with the given
…		…
461	right/bottom side, respectively.	1378	right/bottom side, respectively.
462		1379
463	This method returns an urxvt::overlay object. The overlay will be visible	1380	This method returns an urxvt::overlay object. The overlay will be visible
464	as long as the perl object is referenced.	1381	as long as the perl object is referenced.
465		1382
466	Currently, the only method on the C<urxvt::overlay> object is C<set>:	1383	The methods currently supported on C<urxvt::overlay> objects are:
467		1384
		1385	=over 4
		1386
468	=item $overlay->set ($x, $y, $text, $rend)	1387	=item $overlay->set ($x, $y, $text[, $rend])
469		1388
470	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts	1389	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts
471	text in rxvt-unicode's special encoding and an array of rendition values	1390	text in rxvt-unicode's special encoding and an array of rendition values
472	at a specific position inside the overlay.	1391	at a specific position inside the overlay.
473		1392
		1393	If C<$rend> is missing, then the rendition will not be changed.
		1394
		1395	=item $overlay->hide
		1396
		1397	If visible, hide the overlay, but do not destroy it.
		1398
		1399	=item $overlay->show
		1400
		1401	If hidden, display the overlay again.
		1402
		1403	=back
		1404
		1405	=item $popup = $term->popup ($event)
		1406
		1407	Creates a new C<urxvt::popup> object that implements a popup menu. The
		1408	C<$event> I<must> be the event causing the menu to pop up (a button event,
		1409	currently).
		1410
		1411	=cut
		1412
		1413	sub popup {
		1414	my ($self, $event) = @_;
		1415
		1416	$self->grab ($event->{time}, 1)
		1417	or return;
		1418
		1419	my $popup = bless {
		1420	term => $self,
		1421	event => $event,
		1422	}, urxvt::popup::;
		1423
		1424	Scalar::Util::weaken $popup->{term};
		1425
		1426	$self->{_destroy}{$popup} = urxvt::destroy_hook { $popup->{popup}->destroy };
		1427	Scalar::Util::weaken $self->{_destroy}{$popup};
		1428
		1429	$popup
		1430	}
		1431
474	=item $cellwidth = $term->strwidth $string	1432	=item $cellwidth = $term->strwidth ($string)
475		1433
476	Returns the number of screen-cells this string would need. Correctly	1434	Returns the number of screen-cells this string would need. Correctly
477	accounts for wide and combining characters.	1435	accounts for wide and combining characters.
478		1436
479	=item $octets = $term->locale_encode $string	1437	=item $octets = $term->locale_encode ($string)
480		1438
481	Convert the given text string into the corresponding locale encoding.	1439	Convert the given text string into the corresponding locale encoding.
482		1440
483	=item $string = $term->locale_decode $octets	1441	=item $string = $term->locale_decode ($octets)
484		1442
485	Convert the given locale-encoded octets into a perl string.	1443	Convert the given locale-encoded octets into a perl string.
486		1444
		1445	=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
		1446
		1447	XORs the rendition values in the given span with the provided value
		1448	(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
		1449	refresh hooks to provide effects similar to the selection.
		1450
		1451	=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
		1452
		1453	Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
		1454	whitespace will additionally be xored with the C<$rstyle2>, which defaults
		1455	to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
		1456	it instead. Both styles I<MUST NOT> contain font styles.
		1457
		1458	=item $term->scr_bell
		1459
		1460	Ring the bell!
		1461
		1462	=item $term->scr_add_lines ($string)
		1463
		1464	Write the given text string to the screen, as if output by the application
		1465	running inside the terminal. It may not contain command sequences (escape
		1466	codes), but is free to use line feeds, carriage returns and tabs. The
		1467	string is a normal text string, not in locale-dependent encoding.
		1468
		1469	Normally its not a good idea to use this function, as programs might be
		1470	confused by changes in cursor position or scrolling. Its useful inside a
		1471	C<on_add_lines> hook, though.
		1472
		1473	=item $term->scr_change_screen ($screen)
		1474
		1475	Switch to given screen - 0 primary, 1 secondary.
		1476
		1477	=item $term->cmd_parse ($octets)
		1478
		1479	Similar to C<scr_add_lines>, but the argument must be in the
		1480	locale-specific encoding of the terminal and can contain command sequences
		1481	(escape codes) that will be interpreted.
		1482
487	=item $term->tt_write ($octets)	1483	=item $term->tt_write ($octets)
488		1484
489	Write the octets given in C<$data> to the tty (i.e. as program input). To	1485	Write the octets given in C<$octets> to the tty (i.e. as program input). To
490	pass characters instead of octets, you should convert your strings first	1486	pass characters instead of octets, you should convert your strings first
491	to the locale-specific encoding using C<< $term->locale_encode >>.	1487	to the locale-specific encoding using C<< $term->locale_encode >>.
492		1488
		1489	=item $term->tt_write_user_input ($octets)
		1490
		1491	Like C<tt_write>, but should be used when writing strings in response to
		1492	the user pressing a key, to invokes the additional actions requested by
		1493	the user for that case (C<tt_write> doesn't do that).
		1494
		1495	The typical use case would be inside C<on_action> hooks.
		1496
		1497	=item $term->tt_paste ($octets)
		1498
		1499	Write the octets given in C<$octets> to the tty as a paste, converting NL to
		1500	CR and bracketing the data with control sequences if bracketed paste mode
		1501	is set.
		1502
		1503	=item $old_events = $term->pty_ev_events ([$new_events])
		1504
		1505	Replaces the event mask of the pty watcher by the given event mask. Can
		1506	be used to suppress input and output handling to the pty/tty. See the
		1507	description of C<< urxvt::timer->events >>. Make sure to always restore
		1508	the previous value.
		1509
		1510	=item $fd = $term->pty_fd
		1511
		1512	Returns the master file descriptor for the pty in use, or C<-1> if no pty
		1513	is used.
		1514
		1515	=item $windowid = $term->parent
		1516
		1517	Return the window id of the toplevel window.
		1518
		1519	=item $windowid = $term->vt
		1520
		1521	Return the window id of the terminal window.
		1522
		1523	=item $term->vt_emask_add ($x_event_mask)
		1524
		1525	Adds the specified events to the vt event mask. Useful e.g. when you want
		1526	to receive pointer events all the times:
		1527
		1528	$term->vt_emask_add (urxvt::PointerMotionMask);
		1529
		1530	=item $term->set_urgency ($set)
		1531
		1532	Enable/disable the urgency hint on the toplevel window.
		1533
		1534	=item $term->focus_in
		1535
		1536	=item $term->focus_out
		1537
		1538	=item $term->key_press ($state, $keycode[, $time])
		1539
		1540	=item $term->key_release ($state, $keycode[, $time])
		1541
		1542	Deliver various fake events to to terminal.
		1543
		1544	=item $window_width = $term->width
		1545
		1546	=item $window_height = $term->height
		1547
		1548	=item $font_width = $term->fwidth
		1549
		1550	=item $font_height = $term->fheight
		1551
		1552	=item $font_ascent = $term->fbase
		1553
493	=item $nrow = $term->nrow	1554	=item $terminal_rows = $term->nrow
494		1555
495	=item $ncol = $term->ncol	1556	=item $terminal_columns = $term->ncol
496		1557
497	Return the number of rows/columns of the terminal window (i.e. as	1558	=item $has_focus = $term->focus
498	specified by C<-geometry>, excluding any scrollback).
499		1559
		1560	=item $is_mapped = $term->mapped
		1561
		1562	=item $max_scrollback = $term->saveLines
		1563
		1564	=item $nrow_plus_saveLines = $term->total_rows
		1565
		1566	=item $topmost_scrollback_row = $term->top_row
		1567
		1568	Return various integers describing terminal characteristics.
		1569
		1570	=item $x_display = $term->display_id
		1571
		1572	Return the DISPLAY used by rxvt-unicode.
		1573
		1574	=item $lc_ctype = $term->locale
		1575
		1576	Returns the LC_CTYPE category string used by this rxvt-unicode.
		1577
500	=item $nsaved = $term->nsaved	1578	=item $env = $term->env
501		1579
502	Returns the number of lines in the scrollback buffer.	1580	Returns a copy of the environment in effect for the terminal as a hashref
		1581	similar to C<\%ENV>.
		1582
		1583	=item @envv = $term->envv
		1584
		1585	Returns the environment as array of strings of the form C<VAR=VALUE>.
		1586
		1587	=item @argv = $term->argv
		1588
		1589	Return the argument vector as this terminal, similar to @ARGV, but
		1590	includes the program name as first element.
		1591
		1592	=cut
		1593
		1594	sub env {
		1595	+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), $_[0]->envv }
		1596	}
		1597
		1598	=item $modifiermask = $term->ModLevel3Mask
		1599
		1600	=item $modifiermask = $term->ModMetaMask
		1601
		1602	=item $modifiermask = $term->ModNumLockMask
		1603
		1604	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
		1605	AltGr), the meta key (often Alt) and the num lock key, if applicable.
		1606
		1607	=item $screen = $term->current_screen
		1608
		1609	Returns the currently displayed screen (0 primary, 1 secondary).
		1610
		1611	=item $cursor_is_hidden = $term->hidden_cursor
		1612
		1613	Returns whether the cursor is currently hidden or not.
503		1614
504	=item $view_start = $term->view_start ([$newvalue])	1615	=item $view_start = $term->view_start ([$newvalue])
505		1616
506	Returns the negative row number of the topmost line. Minimum value is	1617	Returns the row number of the topmost displayed line. Maximum value is
507	C<0>, which displays the normal terminal contents. Larger values scroll	1618	C<0>, which displays the normal terminal contents. Lower values scroll
508	this many lines into the scrollback buffer.	1619	this many lines into the scrollback buffer.
509		1620
510	=item $term->want_refresh	1621	=item $term->want_refresh
511		1622
512	Requests a screen refresh. At the next opportunity, rxvt-unicode will	1623	Requests a screen refresh. At the next opportunity, rxvt-unicode will
…		…
515		1626
516	Used after changing terminal contents to display them.	1627	Used after changing terminal contents to display them.
517		1628
518	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])	1629	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
519		1630
520	Returns the text of the entire row with number C<$row_number>. Row C<0>	1631	Returns the text of the entire row with number C<$row_number>. Row C<< $term->top_row >>
521	is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost	1632	is the topmost terminal line, row C<< $term->nrow-1 >> is the bottommost
522	terminal line. The scrollback buffer starts at line C<-1> and extends to	1633	terminal line. Nothing will be returned if a nonexistent line
523	line C<< -$term->nsaved >>.	1634	is requested.
524		1635
525	If C<$new_text> is specified, it will replace characters in the current	1636	If C<$new_text> is specified, it will replace characters in the current
526	line, starting at column C<$start_col> (default C<0>), which is useful	1637	line, starting at column C<$start_col> (default C<0>), which is useful
527	to replace only parts of a line. The font index in the rendition will	1638	to replace only parts of a line. The font index in the rendition will
528	automatically be updated.	1639	automatically be updated.
529		1640
530	C<$text> is in a special encoding: tabs and wide characters that use more	1641	C<$text> is in a special encoding: tabs and wide characters that use more
531	than one cell when displayed are padded with urxvt::NOCHAR characters	1642	than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
532	(C<chr 65535>). Characters with combining characters and other characters	1643	characters. Characters with combining characters and other characters that
533	that do not fit into the normal tetx encoding will be replaced with	1644	do not fit into the normal text encoding will be replaced with characters
534	characters in the private use area.	1645	in the private use area.
535		1646
536	You have to obey this encoding when changing text. The advantage is	1647	You have to obey this encoding when changing text. The advantage is
537	that C<substr> and similar functions work on screen cells and not on	1648	that C<substr> and similar functions work on screen cells and not on
538	characters.	1649	characters.
539		1650
…		…
550		1661
551	See the section on RENDITION, above.	1662	See the section on RENDITION, above.
552		1663
553	=item $length = $term->ROW_l ($row_number[, $new_length])	1664	=item $length = $term->ROW_l ($row_number[, $new_length])
554		1665
555	Returns the number of screen cells that are in use ("the line length"). If	1666	Returns the number of screen cells that are in use ("the line
556	it is C<-1>, then the line is part of a multiple-row logical "line", which	1667	length"). Unlike the urxvt core, this returns C<< $term->ncol >> if the
557	means all characters are in use and it is continued on the next row.	1668	line is joined with the following one.
		1669
		1670	=item $bool = $term->is_longer ($row_number)
		1671
		1672	Returns true if the row is part of a multiple-row logical "line" (i.e.
		1673	joined with the following row), which means all characters are in use
		1674	and it is continued on the next row (and possibly a continuation of the
		1675	previous row(s)).
		1676
		1677	=item $line = $term->line ($row_number)
		1678
		1679	Create and return a new C<urxvt::line> object that stores information
		1680	about the logical line that row C<$row_number> is part of. It supports the
		1681	following methods:
		1682
		1683	=over 4
		1684
		1685	=item $text = $line->t ([$new_text])
		1686
		1687	Returns or replaces the full text of the line, similar to C<ROW_t>
		1688
		1689	=item $rend = $line->r ([$new_rend])
		1690
		1691	Returns or replaces the full rendition array of the line, similar to C<ROW_r>
		1692
		1693	=item $length = $line->l
		1694
		1695	Returns the length of the line in cells, similar to C<ROW_l>.
		1696
		1697	=item $rownum = $line->beg
		1698
		1699	=item $rownum = $line->end
		1700
		1701	Return the row number of the first/last row of the line, respectively.
		1702
		1703	=item $offset = $line->offset_of ($row, $col)
		1704
		1705	Returns the character offset of the given row|col pair within the logical
		1706	line. Works for rows outside the line, too, and returns corresponding
		1707	offsets outside the string.
		1708
		1709	=item ($row, $col) = $line->coord_of ($offset)
		1710
		1711	Translates a string offset into terminal coordinates again.
		1712
		1713	=back
		1714
		1715	=cut
		1716
		1717	sub line {
		1718	my ($self, $row) = @_;
		1719
		1720	my $maxrow = $self->nrow - 1;
		1721
		1722	my ($beg, $end) = ($row, $row);
		1723
		1724	--$beg while $self->ROW_is_longer ($beg - 1);
		1725	++$end while $self->ROW_is_longer ($end) && $end < $maxrow;
		1726
		1727	bless {
		1728	term => $self,
		1729	beg => $beg,
		1730	end => $end,
		1731	ncol => $self->ncol,
		1732	len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),
		1733	}, urxvt::line::
		1734	}
		1735
		1736	sub urxvt::line::t {
		1737	my ($self) = @_;
		1738
		1739	if (@_ > 1) {
		1740	$self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
		1741	for $self->{beg} .. $self->{end};
		1742	}
		1743
		1744	defined wantarray &&
		1745	substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),
		1746	0, $self->{len}
		1747	}
		1748
		1749	sub urxvt::line::r {
		1750	my ($self) = @_;
		1751
		1752	if (@_ > 1) {
		1753	$self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
		1754	for $self->{beg} .. $self->{end};
		1755	}
		1756
		1757	if (defined wantarray) {
		1758	my $rend = [
		1759	map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}
		1760	];
		1761	$#$rend = $self->{len} - 1;
		1762	return $rend;
		1763	}
		1764
		1765	()
		1766	}
		1767
		1768	sub urxvt::line::beg { $_[0]{beg} }
		1769	sub urxvt::line::end { $_[0]{end} }
		1770	sub urxvt::line::l { $_[0]{len} }
		1771
		1772	sub urxvt::line::offset_of {
		1773	my ($self, $row, $col) = @_;
		1774
		1775	($row - $self->{beg}) * $self->{ncol} + $col
		1776	}
		1777
		1778	sub urxvt::line::coord_of {
		1779	my ($self, $offset) = @_;
		1780
		1781	use integer;
		1782
		1783	(
		1784	$offset / $self->{ncol} + $self->{beg},
		1785	$offset % $self->{ncol}
		1786	)
		1787	}
558		1788
559	=item $text = $term->special_encode $string	1789	=item $text = $term->special_encode $string
560		1790
561	Converts a perl string into the special encoding used by rxvt-unicode,	1791	Converts a perl string into the special encoding used by rxvt-unicode,
562	where one character corresponds to one screen cell. See	1792	where one character corresponds to one screen cell. See
563	C<< $term->ROW_t >> for details.	1793	C<< $term->ROW_t >> for details.
564		1794
565	=item $string = $term->special_decode $text	1795	=item $string = $term->special_decode $text
566		1796
567	Converts rxvt-unicodes text reprsentation into a perl string. See	1797	Converts rxvt-unicodes text representation into a perl string. See
568	C<< $term->ROW_t >> for details.	1798	C<< $term->ROW_t >> for details.
569		1799
		1800	=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
		1801
		1802	=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
		1803
		1804	Register/unregister a synchronous button grab. See the XGrabButton
		1805	manpage.
		1806
		1807	=item $success = $term->grab ($eventtime[, $sync])
		1808
		1809	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
		1810	synchronous (C<$sync> is true). Also remembers the grab timestamp.
		1811
		1812	=item $term->allow_events_async
		1813
		1814	Calls XAllowEvents with AsyncBoth for the most recent grab.
		1815
		1816	=item $term->allow_events_sync
		1817
		1818	Calls XAllowEvents with SyncBoth for the most recent grab.
		1819
		1820	=item $term->allow_events_replay
		1821
		1822	Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
		1823	recent grab.
		1824
		1825	=item $term->ungrab
		1826
		1827	Calls XUngrabPointer and XUngrabKeyboard for the most recent grab. Is called automatically on
		1828	evaluation errors, as it is better to lose the grab in the error case as
		1829	the session.
		1830
		1831	=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
		1832
		1833	=item $atom_name = $term->XGetAtomName ($atom)
		1834
		1835	=item @atoms = $term->XListProperties ($window)
		1836
		1837	=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
		1838
		1839	=item $term->XChangeProperty ($window, $property, $type, $format, $octets)
		1840
		1841	=item $term->XDeleteProperty ($window, $property)
		1842
		1843	=item $window = $term->DefaultRootWindow
		1844
		1845	=item $term->XReparentWindow ($window, $parent, [$x, $y])
		1846
		1847	=item $term->XMapWindow ($window)
		1848
		1849	=item $term->XUnmapWindow ($window)
		1850
		1851	=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
		1852
		1853	=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
		1854
		1855	=item $term->XChangeInput ($window, $add_events[, $del_events])
		1856
		1857	=item $keysym = $term->XStringToKeysym ($string)
		1858
		1859	=item $string = $term->XKeysymToString ($keysym)
		1860
		1861	Various X or X-related functions. The C<$term> object only serves as
		1862	the source of the display, otherwise those functions map more-or-less
		1863	directly onto the X functions of the same name.
		1864
570	=back	1865	=back
		1866
		1867	=cut
		1868
		1869	package urxvt::popup;
		1870
		1871	=head2 The C<urxvt::popup> Class
		1872
		1873	=over 4
		1874
		1875	=cut
		1876
		1877	sub add_item {
		1878	my ($self, $item) = @_;
		1879
		1880	$item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal};
		1881	$item->{rend}{hover} = "\x1b[0;30;46m" unless exists $item->{rend}{hover};
		1882	$item->{rend}{active} = "\x1b[m" unless exists $item->{rend}{active};
		1883
		1884	$item->{render} ||= sub { $_[0]{text} };
		1885
		1886	push @{ $self->{item} }, $item;
		1887	}
		1888
		1889	=item $popup->add_title ($title)
		1890
		1891	Adds a non-clickable title to the popup.
		1892
		1893	=cut
		1894
		1895	sub add_title {
		1896	my ($self, $title) = @_;
		1897
		1898	$self->add_item ({
		1899	rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
		1900	text => $title,
		1901	activate => sub { },
		1902	});
		1903	}
		1904
		1905	=item $popup->add_separator ([$sepchr])
		1906
		1907	Creates a separator, optionally using the character given as C<$sepchr>.
		1908
		1909	=cut
		1910
		1911	sub add_separator {
		1912	my ($self, $sep) = @_;
		1913
		1914	$sep ||= "=";
		1915
		1916	$self->add_item ({
		1917	rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
		1918	text => "",
		1919	render => sub { $sep x $self->{term}->ncol },
		1920	activate => sub { },
		1921	});
		1922	}
		1923
		1924	=item $popup->add_button ($text, $cb)
		1925
		1926	Adds a clickable button to the popup. C<$cb> is called whenever it is
		1927	selected.
		1928
		1929	=cut
		1930
		1931	sub add_button {
		1932	my ($self, $text, $cb) = @_;
		1933
		1934	$self->add_item ({ type => "button", text => $text, activate => $cb});
		1935	}
		1936
		1937	=item $popup->add_toggle ($text, $initial_value, $cb)
		1938
		1939	Adds a toggle/checkbox item to the popup. The callback gets called
		1940	whenever it gets toggled, with a boolean indicating its new value as its
		1941	first argument.
		1942
		1943	=cut
		1944
		1945	sub add_toggle {
		1946	my ($self, $text, $value, $cb) = @_;
		1947
		1948	my $item; $item = {
		1949	type => "button",
		1950	text => " $text",
		1951	value => $value,
		1952	render => sub { ($_[0]{value} ? "* " : " ") . $text },
		1953	activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
		1954	};
		1955
		1956	$self->add_item ($item);
		1957	}
		1958
		1959	=item $popup->show
		1960
		1961	Displays the popup (which is initially hidden).
		1962
		1963	=cut
		1964
		1965	sub show {
		1966	my ($self) = @_;
		1967
		1968	local $urxvt::popup::self = $self;
		1969
		1970	my $env = $self->{term}->env;
		1971	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
		1972	delete $env->{LC_ALL};
		1973	$env->{LC_CTYPE} = $self->{term}->locale;
		1974
		1975	my $term = urxvt::term->new (
		1976	$env, "popup",
		1977	"--perl-lib" => "", "--perl-ext-common" => "",
		1978	"-pty-fd" => -1, "-sl" => 0,
		1979	"-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
		1980	"--transient-for" => $self->{term}->parent,
		1981	"-display" => $self->{term}->display_id,
		1982	"-pe" => "urxvt-popup",
		1983	) or die "unable to create popup window\n";
		1984
		1985	unless (delete $term->{urxvt_popup_init_done}) {
		1986	$term->ungrab;
		1987	$term->destroy;
		1988	die "unable to initialise popup window\n";
		1989	}
		1990	}
		1991
		1992	sub DESTROY {
		1993	my ($self) = @_;
		1994
		1995	delete $self->{term}{_destroy}{$self};
		1996	$self->{term}->ungrab;
		1997	}
		1998
		1999	=back
		2000
		2001	=cut
		2002
		2003	package urxvt::watcher;
571		2004
572	=head2 The C<urxvt::timer> Class	2005	=head2 The C<urxvt::timer> Class
573		2006
574	This class implements timer watchers/events. Time is represented as a	2007	This class implements timer watchers/events. Time is represented as a
575	fractional number of seconds since the epoch. Example:	2008	fractional number of seconds since the epoch. Example:
…		…
579	->new	2012	->new
580	->interval (1)	2013	->interval (1)
581	->cb (sub {	2014	->cb (sub {
582	$term->{overlay}->set (0, 0,	2015	$term->{overlay}->set (0, 0,
583	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);	2016	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
584	});	2017	});
585		2018
586	=over 4	2019	=over 4
587		2020
588	=item $timer = new urxvt::timer	2021	=item $timer = new urxvt::timer
589		2022
…		…
592		2025
593	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })	2026	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })
594		2027
595	Set the callback to be called when the timer triggers.	2028	Set the callback to be called when the timer triggers.
596		2029
597	=item $tstamp = $timer->at
598
599	Return the time this watcher will fire next.
600
601	=item $timer = $timer->set ($tstamp)	2030	=item $timer = $timer->set ($tstamp[, $interval])
602		2031
603	Set the time the event is generated to $tstamp.	2032	Set the time the event is generated to $tstamp (and optionally specifies a
		2033	new $interval).
604		2034
605	=item $timer = $timer->interval ($interval)	2035	=item $timer = $timer->interval ($interval)
606		2036
607	Normally (and when C<$interval> is C<0>), the timer will automatically	2037	By default (and when C<$interval> is C<0>), the timer will automatically
608	stop after it has fired once. If C<$interval> is non-zero, then the timer	2038	stop after it has fired once. If C<$interval> is non-zero, then the timer
609	is automatically rescheduled at the given intervals.	2039	is automatically rescheduled at the given intervals.
610		2040
611	=item $timer = $timer->start	2041	=item $timer = $timer->start
612		2042
613	Start the timer.	2043	Start the timer.
614		2044
615	=item $timer = $timer->start ($tstamp)	2045	=item $timer = $timer->start ($tstamp[, $interval])
616		2046
617	Set the event trigger time to C<$tstamp> and start the timer.	2047	Set the event trigger time to C<$tstamp> and start the timer. Optionally
		2048	also replaces the interval.
		2049
		2050	=item $timer = $timer->after ($delay[, $interval])
		2051
		2052	Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
618		2053
619	=item $timer = $timer->stop	2054	=item $timer = $timer->stop
620		2055
621	Stop the timer.	2056	Stop the timer.
622		2057
…		…
628		2063
629	$term->{socket} = ...	2064	$term->{socket} = ...
630	$term->{iow} = urxvt::iow	2065	$term->{iow} = urxvt::iow
631	->new	2066	->new
632	->fd (fileno $term->{socket})	2067	->fd (fileno $term->{socket})
633	->events (1) # wait for read data	2068	->events (urxvt::EV_READ)
634	->start	2069	->start
635	->cb (sub {	2070	->cb (sub {
636	my ($iow, $revents) = @_;	2071	my ($iow, $revents) = @_;
637	# $revents must be 1 here, no need to check	2072	# $revents must be 1 here, no need to check
638	sysread $term->{socket}, my $buf, 8192	2073	sysread $term->{socket}, my $buf, 8192
…		…
651	Set the callback to be called when io events are triggered. C<$reventmask>	2086	Set the callback to be called when io events are triggered. C<$reventmask>
652	is a bitset as described in the C<events> method.	2087	is a bitset as described in the C<events> method.
653		2088
654	=item $iow = $iow->fd ($fd)	2089	=item $iow = $iow->fd ($fd)
655		2090
656	Set the filedescriptor (not handle) to watch.	2091	Set the file descriptor (not handle) to watch.
657		2092
658	=item $iow = $iow->events ($eventmask)	2093	=item $iow = $iow->events ($eventmask)
659		2094
660	Set the event mask to watch. Bit #0 (value C<1>) enables watching for read	2095	Set the event mask to watch. The only allowed values are
661	data, Bit #1 (value C<2>) enables watching for write data.	2096	C<urxvt::EV_READ> and C<urxvt::EV_WRITE>, which might be ORed
		2097	together, or C<urxvt::EV_NONE>.
662		2098
663	=item $iow = $iow->start	2099	=item $iow = $iow->start
664		2100
665	Start watching for requested events on the given handle.	2101	Start watching for requested events on the given handle.
666		2102
667	=item $iow = $iow->stop	2103	=item $iow = $iow->stop
668		2104
669	Stop watching for events on the given filehandle.	2105	Stop watching for events on the given file handle.
		2106
		2107	=back
		2108
		2109	=head2 The C<urxvt::iw> Class
		2110
		2111	This class implements idle watchers, that get called automatically when
		2112	the process is idle. They should return as fast as possible, after doing
		2113	some useful work.
		2114
		2115	=over 4
		2116
		2117	=item $iw = new urxvt::iw
		2118
		2119	Create a new idle watcher object in stopped state.
		2120
		2121	=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
		2122
		2123	Set the callback to be called when the watcher triggers.
		2124
		2125	=item $timer = $timer->start
		2126
		2127	Start the watcher.
		2128
		2129	=item $timer = $timer->stop
		2130
		2131	Stop the watcher.
		2132
		2133	=back
		2134
		2135	=head2 The C<urxvt::pw> Class
		2136
		2137	This class implements process watchers. They create an event whenever a
		2138	process exits, after which they stop automatically.
		2139
		2140	my $pid = fork;
		2141	...
		2142	$term->{pw} = urxvt::pw
		2143	->new
		2144	->start ($pid)
		2145	->cb (sub {
		2146	my ($pw, $exit_status) = @_;
		2147	...
		2148	});
		2149
		2150	=over 4
		2151
		2152	=item $pw = new urxvt::pw
		2153
		2154	Create a new process watcher in stopped state.
		2155
		2156	=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
		2157
		2158	Set the callback to be called when the timer triggers.
		2159
		2160	=item $pw = $timer->start ($pid)
		2161
		2162	Tells the watcher to start watching for process C<$pid>.
		2163
		2164	=item $pw = $pw->stop
		2165
		2166	Stop the watcher.
670		2167
671	=back	2168	=back
672		2169
673	=head1 ENVIRONMENT	2170	=head1 ENVIRONMENT
674		2171
…		…
677	This variable controls the verbosity level of the perl extension. Higher	2174	This variable controls the verbosity level of the perl extension. Higher
678	numbers indicate more verbose output.	2175	numbers indicate more verbose output.
679		2176
680	=over 4	2177	=over 4
681		2178
682	=item 0 - only fatal messages	2179	=item == 0 - fatal messages
683		2180
684	=item 3 - script loading and management	2181	=item >= 3 - script loading and management
685		2182
686	=item 10 - all events received	2183	=item >=10 - all called hooks
		2184
		2185	=item >=11 - hook return values
687		2186
688	=back	2187	=back
689		2188
690	=head1 AUTHOR	2189	=head1 AUTHOR
691		2190
692	Marc Lehmann <pcg@goof.com>	2191	Marc Lehmann <schmorp@schmorp.de>
693	http://software.schmorp.de/pkg/rxvt-unicode	2192	http://software.schmorp.de/pkg/rxvt-unicode
694		2193
695	=cut	2194	=cut
696		2195
697	1	2196	1
		2197
		2198	# vim: sw=3:

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