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Revision 1.21 by root, Tue Jan 3 04:20:37 2006 UTC vs.
Revision 1.230 by root, Sat Apr 26 20:51:12 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<< ->register_keysym_action >> method.
		294
		295	=item on_register_command $term, $keysym, $modifiermask, $string
		296
		297	Called after parsing a keysym resource but before registering the
		298	associated binding. If this hook returns a true value the binding
		299	is not registered. It can be used to modify a binding by calling
		300	C<register_command>.
		301
		302	=item on_resize_all_windows $term, $new_width, $new_height
		303
		304	Called just after the new window size has been calculated, but before
		305	windows are actually being resized or hints are being set. If this hook
		306	returns a true value, setting of the window hints is being skipped.
		307
		308	=item on_x_event $term, $event
		309
		310	Called on every X event received on the vt window (and possibly other
		311	windows). Should only be used as a last resort. Most event structure
		312	members are not passed.
		313
		314	=item on_root_event $term, $event
		315
		316	Like C<on_x_event>, but is called for events on the root window.
		317
		318	=item on_focus_in $term
		319
		320	Called whenever the window gets the keyboard focus, before rxvt-unicode
		321	does focus in processing.
		322
		323	=item on_focus_out $term
		324
		325	Called whenever the window loses keyboard focus, before rxvt-unicode does
		326	focus out processing.
		327
		328	=item on_configure_notify $term, $event
		329
		330	=item on_property_notify $term, $event
		331
		332	=item on_key_press $term, $event, $keysym, $octets
		333
		334	=item on_key_release $term, $event, $keysym
		335
		336	=item on_button_press $term, $event
		337
		338	=item on_button_release $term, $event
		339
		340	=item on_motion_notify $term, $event
		341
		342	=item on_map_notify $term, $event
		343
		344	=item on_unmap_notify $term, $event
		345
		346	Called whenever the corresponding X event is received for the terminal. If
		347	the hook returns true, then the event will be ignored by rxvt-unicode.
		348
		349	The event is a hash with most values as named by Xlib (see the XEvent
		350	manpage), with the additional members C<row> and C<col>, which are the
		351	(real, not screen-based) row and column under the mouse cursor.
		352
		353	C<on_key_press> additionally receives the string rxvt-unicode would
		354	output, if any, in locale-specific encoding.
		355
		356	subwindow.
		357
		358	=item on_client_message $term, $event
		359
		360	=item on_wm_protocols $term, $event
		361
		362	=item on_wm_delete_window $term, $event
		363
		364	Called when various types of ClientMessage events are received (all with
		365	format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
		366
		367	=item on_bell $term
		368
		369	Called on receipt of a bell character.
173		370
174	=back	371	=back
175		372
		373	=cut
		374
		375	package urxvt;
		376
		377	use utf8;
		378	use strict 'vars';
		379	use Carp ();
		380	use Scalar::Util ();
		381	use List::Util ();
		382
		383	our $VERSION = 1;
		384	our $TERM;
		385	our @TERM_INIT; # should go, prevents async I/O etc.
		386	our @TERM_EXT; # should go, prevents async I/O etc.
		387	our @HOOKNAME;
		388	our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
		389	our %OPTION;
		390
		391	our $LIBDIR;
		392	our $RESNAME;
		393	our $RESCLASS;
		394	our $RXVTNAME;
		395
		396	our $NOCHAR = chr 0xffff;
		397
		398	=head2 Variables in the C<urxvt> Package
		399
		400	=over 4
		401
		402	=item $urxvt::LIBDIR
		403
		404	The rxvt-unicode library directory, where, among other things, the perl
		405	modules and scripts are stored.
		406
		407	=item $urxvt::RESCLASS, $urxvt::RESCLASS
		408
		409	The resource class and name rxvt-unicode uses to look up X resources.
		410
		411	=item $urxvt::RXVTNAME
		412
		413	The basename of the installed binaries, usually C<urxvt>.
		414
		415	=item $urxvt::TERM
		416
		417	The current terminal. This variable stores the current C<urxvt::term>
		418	object, whenever a callback/hook is executing.
		419
		420	=item @urxvt::TERM_INIT
		421
		422	All code references in this array will be called as methods of the next newly
		423	created C<urxvt::term> object (during the C<on_init> phase). The array
		424	gets cleared before the code references that were in it are being executed,
		425	so references can push themselves onto it again if they so desire.
		426
		427	This complements to the perl-eval command line option, but gets executed
		428	first.
		429
		430	=item @urxvt::TERM_EXT
		431
		432	Works similar to C<@TERM_INIT>, but contains perl package/class names, which
		433	get registered as normal extensions after calling the hooks in C<@TERM_INIT>
		434	but before other extensions. Gets cleared just like C<@TERM_INIT>.
		435
		436	=back
		437
176	=head2 Functions in the C<urxvt> Package	438	=head2 Functions in the C<urxvt> Package
177		439
178	=over 4	440	=over 4
179		441
180	=item urxvt::fatal $errormessage	442	=item urxvt::fatal $errormessage
181		443
182	Fatally aborts execution with the given error message. Avoid at all	444	Fatally aborts execution with the given error message (which should
183	costs! The only time this is acceptable is when the terminal process	445	include a trailing newline). Avoid at all costs! The only time this
184	starts up.	446	is acceptable (and useful) is in the init hook, where it prevents the
		447	terminal from starting up.
185		448
186	=item urxvt::warn $string	449	=item urxvt::warn $string
187		450
188	Calls C<rxvt_warn> with the given string which should not include a	451	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	452	newline. The module also overwrites the C<warn> builtin with a function
190	that calls this function.	453	that calls this function.
191		454
192	Using this function has the advantage that its output ends up in the	455	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.	456	correct place, e.g. on stderr of the connecting urxvtc client.
194		457
		458	Messages have a size limit of 1023 bytes currently.
		459
		460	=item @terms = urxvt::termlist
		461
		462	Returns all urxvt::term objects that exist in this process, regardless of
		463	whether they are started, being destroyed etc., so be careful. Only term
		464	objects that have perl extensions attached will be returned (because there
		465	is no urxvt::term object associated with others).
		466
195	=item $time = urxvt::NOW	467	=item $time = urxvt::NOW
196		468
197	Returns the "current time" (as per the event loop).	469	Returns the "current time" (as per the event loop).
		470
		471	=item urxvt::CurrentTime
		472
		473	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
		474	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
		475	Button4Mask, Button5Mask, AnyModifier
		476
		477	=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
		478	ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
		479	PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
		480	Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
		481	KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
		482	ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
		483	FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
		484
		485	=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
		486	EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
		487	GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
		488	UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
		489	ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
		490	CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
		491	SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
		492
		493	Various constants for use in X calls and event processing.
198		494
199	=back	495	=back
200		496
201	=head2 RENDITION	497	=head2 RENDITION
202		498
…		…
217		513
218	=item $rend = urxvt::OVERLAY_RSTYLE	514	=item $rend = urxvt::OVERLAY_RSTYLE
219		515
220	Return the rendition mask used for overlays by default.	516	Return the rendition mask used for overlays by default.
221		517
222	=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline	518	=item $rendbit = urxvt::RS_Bold, urxvt::RS_Italic, urxvt::RS_Blink,
		519	urxvt::RS_RVid, urxvt::RS_Uline
223		520
224	Return the bit that enabled bold, italic, blink, reverse-video and	521	Return the bit that enabled bold, italic, blink, reverse-video and
225	underline, respectively. To enable such a style, just logically OR it into	522	underline, respectively. To enable such a style, just logically OR it into
226	the bitset.	523	the bitset.
227		524
…		…
229		526
230	=item $background = urxvt::GET_BASEBG $rend	527	=item $background = urxvt::GET_BASEBG $rend
231		528
232	Return the foreground/background colour index, respectively.	529	Return the foreground/background colour index, respectively.
233		530
234	=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)	531	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
235		532
236	=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)	533	=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
		534
		535	=item $rend = urxvt::SET_COLOR $rend, $new_fg, $new_bg
237		536
238	Replace the foreground/background colour in the rendition mask with the	537	Replace the foreground/background colour in the rendition mask with the
239	specified one.	538	specified one.
240		539
241	=item $value = urxvt::GET_CUSTOM ($rend)	540	=item $value = urxvt::GET_CUSTOM $rend
242		541
243	Return the "custom" value: Every rendition has 5 bits for use by	542	Return the "custom" value: Every rendition has 5 bits for use by
244	extensions. They can be set and changed as you like and are initially	543	extensions. They can be set and changed as you like and are initially
245	zero.	544	zero.
246		545
247	=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)	546	=item $rend = urxvt::SET_CUSTOM $rend, $new_value
248		547
249	Change the custom value.	548	Change the custom value.
250		549
251	=back	550	=back
252		551
253	=cut	552	=cut
254		553
255	package urxvt;
256
257	use strict;
258
259	our $term;
260	our @HOOKNAME;
261	our $LIBDIR;
262
263	BEGIN {	554	BEGIN {
264	urxvt->bootstrap;
265
266	# overwrite perl's warn	555	# overwrite perl's warn
267	*CORE::GLOBAL::warn = sub {	556	*CORE::GLOBAL::warn = sub {
268	my $msg = join "", @_;	557	my $msg = join "", @_;
269	$msg .= "\n"	558	$msg .= "\n"
270	unless $msg =~ /\n$/;	559	unless $msg =~ /\n$/;
271	urxvt::warn ($msg);	560	urxvt::warn ($msg);
272	};	561	};
273	}	562	}
274		563
275	my @hook_count;	564	no warnings 'utf8';
		565
		566	sub parse_resource {
		567	my ($term, $name, $isarg, $longopt, $flag, $value) = @_;
		568
		569	$name =~ y/-/./ if $isarg;
		570
		571	$term->scan_meta;
		572
		573	my $r = $term->{meta}{resource};
		574	keys %$r; # reset iterator
		575	while (my ($pattern, $v) = each %$r) {
		576	if (
		577	$pattern =~ /\.$/
		578	? $pattern eq substr $name, 0, length $pattern
		579	: $pattern eq $name
		580	) {
		581	$name = "$urxvt::RESCLASS.$name";
		582
		583	push @{ $term->{perl_ext_3} }, $v->[0];
		584
		585	if ($v->[1] eq "boolean") {
		586	$term->put_option_db ($name, $flag ? "true" : "false");
		587	return 1;
		588	} else {
		589	$term->put_option_db ($name, $value);
		590	return 1 + 2;
		591	}
		592	}
		593	}
		594
		595	0
		596	}
		597
		598	sub usage {
		599	my ($term, $usage_type) = @_;
		600
		601	$term->scan_meta;
		602
		603	my $r = $term->{meta}{resource};
		604
		605	for my $pattern (sort keys %$r) {
		606	my ($ext, $type, $desc) = @{ $r->{$pattern} };
		607
		608	$desc .= " (-pe $ext)";
		609
		610	if ($usage_type == 1) {
		611	$pattern =~ y/./-/;
		612	$pattern =~ s/-$/-.../g;
		613
		614	if ($type eq "boolean") {
		615	urxvt::log sprintf " -%-30s %s\n", "/+$pattern", $desc;
		616	} else {
		617	urxvt::log sprintf " -%-30s %s\n", "$pattern $type", $desc;
		618	}
		619	} else {
		620	$pattern =~ s/\.$/.*/g;
		621	urxvt::log sprintf " %-31s %s\n", "$pattern:", $type;
		622	}
		623	}
		624	}
		625
276	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};	626	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
277		627
278	sub verbose {	628	sub verbose {
279	my ($level, $msg) = @_;	629	my ($level, $msg) = @_;
280	warn "$msg\n" if $level <= $verbosity;	630	warn "$msg\n" if $level <= $verbosity;
281	}	631	}
282		632
283	# find on_xxx subs in the package and register them	633	my %extension_pkg;
284	# as hooks
285	sub register_package($) {
286	my ($pkg) = @_;
287
288	for my $htype (0.. $#HOOKNAME) {
289	my $name = $HOOKNAME[$htype];
290
291	my $ref = $pkg->can ("on_" . lc $name)
292	or next;
293
294	$term->{_hook}[$htype]{$ref*1} = $ref;
295	$hook_count[$htype]++
296	or set_should_invoke $htype, 1;
297	}
298	}
299
300	my $script_pkg = "script0000";
301	my %script_pkg;
302		634
303	# load a single script into its own package, once only	635	# load a single script into its own package, once only
304	sub script_package($) {	636	sub extension_package($) {
305	my ($path) = @_;	637	my ($path) = @_;
306		638
307	$script_pkg{$path} ||= do {	639	$extension_pkg{$path} ||= do {
308	my $pkg = "urxvt::" . ($script_pkg++);	640	$path =~ /([^\/\\]+)$/;
		641	my $pkg = $1;
		642	$pkg =~ s/[^[:word:]]/_/g;
		643	$pkg = "urxvt::ext::$pkg";
309		644
310	verbose 3, "loading script '$path' into package '$pkg'";	645	verbose 3, "loading extension '$path' into package '$pkg'";
		646
		647	(${"$pkg\::_NAME"} = $path) =~ s/^.*[\\\/]//; # hackish
311		648
312	open my $fh, "<:raw", $path	649	open my $fh, "<:raw", $path
313	or die "$path: $!";	650	or die "$path: $!";
314		651
315	my $source = "package $pkg; use strict; use utf8;\n"	652	my $source =
		653	"package $pkg; use strict 'vars'; use utf8; no warnings 'utf8';\n"
316	. "#line 1 \"$path\"\n{\n"	654	. "#line 1 \"$path\"\n{\n"
317	. (do { local $/; <$fh> })	655	. (do { local $/; <$fh> })
318	. "\n};\n1";	656	. "\n};\n1";
319		657
		658	eval $source
320	eval $source or die "$path: $@";	659	or die "$path: $@";
321		660
322	$pkg	661	$pkg
323	}	662	}
324	}	663	}
325		664
		665	our $retval; # return value for urxvt
		666
326	# called by the rxvt core	667	# called by the rxvt core
327	sub invoke {	668	sub invoke {
328	local $term = shift;	669	local $TERM = shift;
329	my $htype = shift;	670	my $htype = shift;
330		671
331	if ($htype == 0) { # INIT	672	if ($htype == HOOK_INIT) {
332	my @dirs = ((split /:/, $term->resource ("perl_lib")), "$LIBDIR/perl");	673	my @dirs = $TERM->perl_libdirs;
333		674
334	for my $ext (split /:/, $term->resource ("perl_ext")) {	675	my %ext_arg;
		676
		677	{
		678	my @init = @TERM_INIT;
		679	@TERM_INIT = ();
		680	$_->($TERM) for @init;
		681	my @pkg = @TERM_EXT;
		682	@TERM_EXT = ();
		683	$TERM->register_package ($_) for @pkg;
		684	}
		685
		686	for (
		687	@{ delete $TERM->{perl_ext_3} },
		688	grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2
		689	) {
		690	if ($_ eq "default") {
		691	$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
		692	} elsif (/^-(.*)$/) {
		693	delete $ext_arg{$1};
		694	} elsif (/^([^<]+)<(.*)>$/) {
		695	push @{ $ext_arg{$1} }, $2;
		696	} else {
		697	$ext_arg{$_} ||= [];
		698	}
		699	}
		700
		701	for my $ext (sort keys %ext_arg) {
335	my @files = grep -f $_, map "$_/$ext", @dirs;	702	my @files = grep -f $_, map "$_/$ext", @dirs;
336		703
337	if (@files) {	704	if (@files) {
338	register_package script_package $files[0];	705	$TERM->register_package (extension_package $files[0], $ext_arg{$ext});
339	} else {	706	} else {
340	warn "perl extension '$ext' not found in perl library search path\n";	707	warn "perl extension '$ext' not found in perl library search path\n";
341	}	708	}
342	}	709	}
343		710
344	} elsif ($htype == 1) { # DESTROY	711	eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval");
345	if (my $hook = $term->{_hook}) {	712	warn $@ if $@;
346	for my $htype (0..$#$hook) {	713	}
347	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }	714
348	or set_should_invoke $htype, 0;	715	$retval = undef;
		716
		717	if (my $cb = $TERM->{_hook}[$htype]) {
		718	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
		719	if $verbosity >= 10;
		720
		721	for my $pkg (
		722	# this hook is only sent to the extension with the name
		723	# matching the first arg
		724	$htype == HOOK_KEYBOARD_DISPATCH
		725	? exists $cb->{"urxvt::ext::$_[0]"} ? "urxvt::ext::" . shift : return undef
		726	: keys %$cb
		727	) {
		728	my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg} || $TERM, @_) };
		729	$retval ||= $retval_;
		730
		731	if ($@) {
		732	$TERM->ungrab; # better to lose the grab than the session
		733	warn $@;
		734	}
		735	}
		736
		737	verbose 11, "$HOOKNAME[$htype] returning <$retval>"
		738	if $verbosity >= 11;
		739	}
		740
		741	if ($htype == HOOK_DESTROY) {
		742	# clear package objects
		743	%$_ = () for values %{ $TERM->{_pkg} };
		744
		745	# clear package
		746	%$TERM = ();
		747	}
		748
		749	$retval
		750	}
		751
		752	sub SET_COLOR($$$) {
		753	SET_BGCOLOR (SET_FGCOLOR ($_[0], $_[1]), $_[2])
		754	}
		755
		756	sub rend2mask {
		757	no strict 'refs';
		758	my ($str, $mask) = (@_, 0);
		759	my %color = ( fg => undef, bg => undef );
		760	my @failed;
		761	for my $spec ( split /\s+/, $str ) {
		762	if ( $spec =~ /^([fb]g)[_:-]?(\d+)/i ) {
		763	$color{lc($1)} = $2;
		764	} else {
		765	my $neg = $spec =~ s/^[-^]//;
		766	unless ( exists &{"RS_$spec"} ) {
		767	push @failed, $spec;
		768	next;
		769	}
		770	my $cur = &{"RS_$spec"};
		771	if ( $neg ) {
		772	$mask &= ~$cur;
		773	} else {
		774	$mask |= $cur;
349	}	775	}
350	}	776	}
351	}	777	}
		778	($mask, @color{qw(fg bg)}, \@failed)
		779	}
352		780
353	my $cb = $term->{_hook}[$htype]	781	package urxvt::term::extension;
354	or return;
355		782
356	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $term, @_) . ")"	783	=head2 The C<urxvt::term::extension> class
357	if $verbosity >= 10;
358		784
		785	Each extension attached to a terminal object is represented by
		786	a C<urxvt::term::extension> object.
		787
		788	You can use these objects, which are passed to all callbacks to store any
		789	state related to the terminal and extension instance.
		790
		791	The methods (And data members) documented below can be called on extension
		792	objects, in addition to call methods documented for the <urxvt::term>
		793	class.
		794
		795	=over 4
		796
		797	=item $urxvt_term = $self->{term}
		798
		799	Returns the C<urxvt::term> object associated with this instance of the
		800	extension. This member I<must not> be changed in any way.
		801
		802	=cut
		803
		804	our $AUTOLOAD;
		805
		806	sub AUTOLOAD {
		807	$AUTOLOAD =~ /:([^:]+)$/
		808	or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
		809
		810	eval qq{
		811	sub $AUTOLOAD {
		812	my \$proxy = shift;
		813	\$proxy->{term}->$1 (\@_)
		814	}
		815	1
		816	} or die "FATAL: unable to compile method forwarder: $@";
		817
		818	goto &$AUTOLOAD;
		819	}
		820
		821	sub DESTROY {
		822	# nop
		823	}
		824
		825	# urxvt::destroy_hook (basically a cheap Guard:: implementation)
		826
		827	sub urxvt::destroy_hook::DESTROY {
		828	${$_[0]}->();
		829	}
		830
		831	sub urxvt::destroy_hook(&) {
		832	bless \shift, urxvt::destroy_hook::
		833	}
		834
		835	=item $self->enable ($hook_name => $cb[, $hook_name => $cb..])
		836
		837	Dynamically enable the given hooks (named without the C<on_> prefix) for
		838	this extension, replacing any hook previously installed via C<enable> in
		839	this extension.
		840
		841	This is useful when you want to overwrite time-critical hooks only
		842	temporarily.
		843
		844	To install additional callbacks for the same hook, you can use the C<on>
		845	method of the C<urxvt::term> class.
		846
		847	=item $self->disable ($hook_name[, $hook_name..])
		848
		849	Dynamically disable the given hooks.
		850
		851	=cut
		852
		853	sub enable {
		854	my ($self, %hook) = @_;
		855	my $pkg = $self->{_pkg};
		856
359	while (my ($k, $v) = each %$cb) {	857	while (my ($name, $cb) = each %hook) {
360	return 1 if $v->($term, @_);	858	my $htype = $HOOKTYPE{uc $name};
		859	defined $htype
		860	or Carp::croak "unsupported hook type '$name'";
		861
		862	$self->set_should_invoke ($htype, +1)
		863	unless exists $self->{term}{_hook}[$htype]{$pkg};
		864
		865	$self->{term}{_hook}[$htype]{$pkg} = $cb;
361	}	866	}
		867	}
362		868
		869	sub disable {
		870	my ($self, @hook) = @_;
		871	my $pkg = $self->{_pkg};
		872
		873	for my $name (@hook) {
		874	my $htype = $HOOKTYPE{uc $name};
		875	defined $htype
		876	or Carp::croak "unsupported hook type '$name'";
		877
		878	$self->set_should_invoke ($htype, -1)
		879	if delete $self->{term}{_hook}[$htype]{$pkg};
363	0	880	}
364	}	881	}
		882
		883	=item $guard = $self->on ($hook_name => $cb[, $hook_name => $cb..])
		884
		885	Similar to the C<enable> enable, but installs additional callbacks for
		886	the given hook(s) (that is, it doesn't replace existing callbacks), and
		887	returns a guard object. When the guard object is destroyed the callbacks
		888	are disabled again.
		889
		890	=cut
		891
		892	sub urxvt::extension::on_disable::DESTROY {
		893	my $disable = shift;
		894
		895	my $term = delete $disable->{""};
		896
		897	while (my ($htype, $id) = each %$disable) {
		898	delete $term->{_hook}[$htype]{$id};
		899	$term->set_should_invoke ($htype, -1);
		900	}
		901	}
		902
		903	sub on {
		904	my ($self, %hook) = @_;
		905
		906	my $term = $self->{term};
		907
		908	my %disable = ( "" => $term );
		909
		910	while (my ($name, $cb) = each %hook) {
		911	my $htype = $HOOKTYPE{uc $name};
		912	defined $htype
		913	or Carp::croak "unsupported hook type '$name'";
		914
		915	$term->set_should_invoke ($htype, +1);
		916	$term->{_hook}[$htype]{ $disable{$htype} = $cb+0 }
		917	= sub { shift; $cb->($self, @_) }; # very ugly indeed
		918	}
		919
		920	bless \%disable, "urxvt::extension::on_disable"
		921	}
		922
		923	=item $self->x_resource ($pattern)
		924
		925	=item $self->x_resource_boolean ($pattern)
		926
		927	These methods support an additional C<%> prefix when called on an
		928	extension object - see the description of these methods in the
		929	C<urxvt::term> class for details.
		930
		931	=cut
		932
		933	sub x_resource {
		934	my ($self, $name) = @_;
		935	$name =~ s/^%(\.|$)/$_[0]{_name}$1/;
		936	$self->{term}->x_resource ($name)
		937	}
		938
		939	sub x_resource_boolean {
		940	my ($self, $name) = @_;
		941	$name =~ s/^%(\.|$)/$_[0]{_name}$1/;
		942	$self->{term}->x_resource_boolean ($name)
		943	}
		944
		945	=back
		946
		947	=cut
		948
		949	package urxvt::anyevent;
		950
		951	=head2 The C<urxvt::anyevent> Class
		952
		953	The sole purpose of this class is to deliver an interface to the
		954	C<AnyEvent> module - any module using it will work inside urxvt without
		955	further programming. The only exception is that you cannot wait on
		956	condition variables, but non-blocking condvar use is ok.
		957
		958	In practical terms this means is that you cannot use blocking APIs, but
		959	the non-blocking variant should work.
		960
		961	=cut
		962
		963	our $VERSION = '5.23';
		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	->after ($arg{after}, $arg{interval})
		976	->cb ($arg{interval} ? $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	my $fd = fileno $arg{fh};
		987	defined $fd or $fd = $arg{fh};
		988
		989	bless [$arg{fh}, urxvt::iow
		990	->new
		991	->fd ($fd)
		992	->events (($arg{poll} =~ /r/ ? 1 : 0)
		993	| ($arg{poll} =~ /w/ ? 2 : 0))
		994	->start
		995	->cb ($cb)
		996	], urxvt::anyevent::
		997	}
		998
		999	sub idle {
		1000	my ($class, %arg) = @_;
		1001
		1002	my $cb = $arg{cb};
		1003
		1004	urxvt::iw
		1005	->new
		1006	->start
		1007	->cb ($cb)
		1008	}
		1009
		1010	sub child {
		1011	my ($class, %arg) = @_;
		1012
		1013	my $cb = $arg{cb};
		1014
		1015	urxvt::pw
		1016	->new
		1017	->start ($arg{pid})
		1018	->cb (sub {
		1019	$_[0]->stop; # need to cancel manually
		1020	$cb->($_[0]->rpid, $_[0]->rstatus);
		1021	})
		1022	}
		1023
		1024	sub DESTROY {
		1025	$_[0][1]->stop;
		1026	}
		1027
		1028	# only needed for AnyEvent < 6 compatibility
		1029	sub one_event {
		1030	Carp::croak "AnyEvent->one_event blocking wait unsupported in urxvt, use a non-blocking API";
		1031	}
		1032
		1033	package urxvt::term;
365		1034
366	=head2 The C<urxvt::term> Class	1035	=head2 The C<urxvt::term> Class
367		1036
368	=over 4	1037	=over 4
		1038
		1039	=cut
		1040
		1041	# find on_xxx subs in the package and register them
		1042	# as hooks
		1043	sub register_package {
		1044	my ($self, $pkg, $argv) = @_;
		1045
		1046	no strict 'refs';
		1047
		1048	urxvt::verbose 6, "register package $pkg to $self";
		1049
		1050	@{"$pkg\::ISA"} = urxvt::term::extension::;
		1051
		1052	my $proxy = bless {
		1053	_pkg => $pkg,
		1054	_name => ${"$pkg\::_NAME"}, # hackish
		1055	argv => $argv,
		1056	}, $pkg;
		1057	Scalar::Util::weaken ($proxy->{term} = $self);
		1058
		1059	$self->{_pkg}{$pkg} = $proxy;
		1060
		1061	for my $name (@HOOKNAME) {
		1062	if (my $ref = $pkg->can ("on_" . lc $name)) {
		1063	$proxy->enable ($name => $ref);
		1064	}
		1065	}
		1066	}
		1067
		1068	sub perl_libdirs {
		1069	map { split /:/ }
		1070	$_[0]->resource ("perl_lib"),
		1071	$ENV{URXVT_PERL_LIB},
		1072	"$ENV{HOME}/.urxvt/ext",
		1073	"$LIBDIR/perl"
		1074	}
		1075
		1076	sub scan_meta {
		1077	my ($self) = @_;
		1078	my @libdirs = perl_libdirs $self;
		1079
		1080	return if $self->{meta_libdirs} eq join "\x00", @libdirs;
		1081
		1082	my %meta;
		1083
		1084	$self->{meta_libdirs} = join "\x00", @libdirs;
		1085	$self->{meta} = \%meta;
		1086
		1087	for my $dir (reverse @libdirs) {
		1088	opendir my $fh, $dir
		1089	or next;
		1090	for my $ext (readdir $fh) {
		1091	$ext !~ /^\./
		1092	and open my $fh, "<", "$dir/$ext"
		1093	or next;
		1094
		1095	while (<$fh>) {
		1096	if (/^#:META:X_RESOURCE:(.*)/) {
		1097	my ($pattern, $type, $desc) = split /:/, $1;
		1098	$pattern =~ s/^%(\.|$)/$ext$1/g; # % in pattern == extension name
		1099	if ($pattern =~ /[^a-zA-Z0-9\-\.]/) {
		1100	warn "$dir/$ext: meta resource '$pattern' contains illegal characters (not alphanumeric nor . nor *)\n";
		1101	} else {
		1102	$meta{resource}{$pattern} = [$ext, $type, $desc];
		1103	}
		1104	} elsif (/^\s*(?:#|$)/) {
		1105	# skip other comments and empty lines
		1106	} else {
		1107	last; # stop parsing on first non-empty non-comment line
		1108	}
		1109	}
		1110	}
		1111	}
		1112	}
		1113
		1114	=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
		1115
		1116	Creates a new terminal, very similar as if you had started it with system
		1117	C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
		1118	hash which defines the environment of the new terminal.
		1119
		1120	Croaks (and probably outputs an error message) if the new instance
		1121	couldn't be created. Returns C<undef> if the new instance didn't
		1122	initialise perl, and the terminal object otherwise. The C<init> and
		1123	C<start> hooks will be called before this call returns, and are free to
		1124	refer to global data (which is race free).
		1125
		1126	=cut
		1127
		1128	sub new {
		1129	my ($class, $env, @args) = @_;
		1130
		1131	$env or Carp::croak "environment hash missing in call to urxvt::term->new";
		1132	@args or Carp::croak "name argument missing in call to urxvt::term->new";
		1133
		1134	_new ([ map "$_=$env->{$_}", keys %$env ], \@args);
		1135	}
		1136
		1137	=item $term->destroy
		1138
		1139	Destroy the terminal object (close the window, free resources
		1140	etc.). Please note that urxvt will not exit as long as any event
		1141	watchers (timers, io watchers) are still active.
		1142
		1143	=item $term->exec_async ($cmd[, @args])
		1144
		1145	Works like the combination of the C<fork>/C<exec> builtins, which executes
		1146	("starts") programs in the background. This function takes care of setting
		1147	the user environment before exec'ing the command (e.g. C<PATH>) and should
		1148	be preferred over explicit calls to C<exec> or C<system>.
		1149
		1150	Returns the pid of the subprocess or C<undef> on error.
		1151
		1152	=cut
		1153
		1154	sub exec_async {
		1155	my $self = shift;
		1156
		1157	my $pid = fork;
		1158
		1159	return $pid
		1160	if !defined $pid or $pid;
		1161
		1162	%ENV = %{ $self->env };
		1163
		1164	exec @_;
		1165	urxvt::_exit 255;
		1166	}
		1167
		1168	=item $isset = $term->option ($optval[, $set])
		1169
		1170	Returns true if the option specified by C<$optval> is enabled, and
		1171	optionally change it. All option values are stored by name in the hash
		1172	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
		1173
		1174	Here is a likely non-exhaustive list of option names, please see the
		1175	source file F</src/optinc.h> to see the actual list:
		1176
		1177	borderLess buffered console cursorBlink cursorUnderline hold iconic
		1178	insecure intensityStyles iso14755 iso14755_52 jumpScroll loginShell
		1179	mapAlert meta8 mouseWheelScrollPage override_redirect pastableTabs
		1180	pointerBlank reverseVideo scrollBar scrollBar_floating scrollBar_right
		1181	scrollTtyKeypress scrollTtyOutput scrollWithBuffer secondaryScreen
		1182	secondaryScroll skipBuiltinGlyphs skipScroll transparent tripleclickwords
		1183	urgentOnBell utmpInhibit visualBell
369		1184
370	=item $value = $term->resource ($name[, $newval])	1185	=item $value = $term->resource ($name[, $newval])
371		1186
372	Returns the current resource value associated with a given name and	1187	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>	1188	optionally sets a new value. Setting values is most useful in the C<init>
…		…
382	likely change).	1197	likely change).
383		1198
384	Please note that resource strings will currently only be freed when the	1199	Please note that resource strings will currently only be freed when the
385	terminal is destroyed, so changing options frequently will eat memory.	1200	terminal is destroyed, so changing options frequently will eat memory.
386		1201
387	Here is a a likely non-exhaustive list of resource names, not all of which	1202	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	1203	are supported in every build, please see the source file F</src/rsinc.h>
389	list:	1204	to see the actual list:
390		1205
391	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont	1206	answerbackstring backgroundPixmap backspace_key blurradius
392	borderLess color cursorBlink cursorUnderline cutchars delete_key	1207	boldFont boldItalicFont borderLess buffered chdir color cursorBlink
393	display_name embed ext_bwidth fade font geometry hold iconName	1208	cursorUnderline cutchars delete_key depth display_name embed ext_bwidth
394	imFont imLocale inputMethod insecure int_bwidth intensityStyles	1209	fade font geometry hold iconName iconfile imFont imLocale inputMethod
		1210	insecure int_bwidth intensityStyles iso14755 iso14755_52 italicFont
395	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier	1211	jumpScroll letterSpace lineSpace loginShell mapAlert meta8 modifier
396	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext	1212	mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
397	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd	1213	perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
398	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating	1214	preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
399	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput	1215	scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
400	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle	1216	scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
401	shade term_name title transparent transparent_all tripleclickwords	1217	secondaryScreen secondaryScroll shade skipBuiltinGlyphs skipScroll
		1218	term_name title transient_for transparent tripleclickwords urgentOnBell
402	utmpInhibit visualBell	1219	utmpInhibit visualBell
403		1220
404	=cut	1221	=cut
405		1222
406	sub urxvt::term::resource($$;$) {	1223	sub resource($$;$) {
407	my ($self, $name) = (shift, shift);	1224	my ($self, $name) = (shift, shift);
408	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);	1225	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
409	goto &urxvt::term::_resource;	1226	goto &urxvt::term::_resource
410	}	1227	}
		1228
		1229	=item $value = $term->x_resource ($pattern)
		1230
		1231	Returns the X-Resource for the given pattern, excluding the program or
		1232	class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
		1233	same value as used by this instance of rxvt-unicode. Returns C<undef> if no
		1234	resource with that pattern exists.
		1235
		1236	Extensions that define extra resource or command line arguments also need
		1237	to call this method to access their values.
		1238
		1239	If the method is called on an extension object (basically, from an
		1240	extension), then the special prefix C<%.> will be replaced by the name of
		1241	the extension and a dot, and the lone string C<%> will be replaced by the
		1242	extension name itself. This makes it possible to code extensions so you
		1243	can rename them and get a new set of commandline switches and resources
		1244	without having to change the actual code.
		1245
		1246	This method should only be called during the C<on_start> hook, as there is
		1247	only one resource database per display, and later invocations might return
		1248	the wrong resources.
		1249
		1250	=item $value = $term->x_resource_boolean ($pattern)
		1251
		1252	Like C<x_resource>, above, but interprets the string value as a boolean
		1253	and returns C<1> for true values, C<0> for false values and C<undef> if
		1254	the resource or option isn't specified.
		1255
		1256	You should always use this method to parse boolean resources.
		1257
		1258	=cut
		1259
		1260	sub x_resource_boolean {
		1261	my $res = &x_resource;
		1262
		1263	$res =~ /^\s*(?:true|yes|on|1)\s*$/i ? 1 : defined $res && 0
		1264	}
		1265
		1266	=item $success = $term->parse_keysym ($key, $octets)
		1267
		1268	Adds a key binding exactly as specified via a resource. See the
		1269	C<keysym> resource in the urxvt(1) manpage.
		1270
		1271	=item $term->register_command ($keysym, $modifiermask, $string)
		1272
		1273	Adds a key binding. This is a lower level api compared to
		1274	C<parse_keysym>, as it expects a parsed key description, and can be
		1275	used only inside either the C<on_init> hook, to add a binding, or the
		1276	C<on_register_command> hook, to modify a parsed binding.
		1277
		1278	=item $rend = $term->rstyle ([$new_rstyle])
		1279
		1280	Return and optionally change the current rendition. Text that is output by
		1281	the terminal application will use this style.
		1282
		1283	=item ($row, $col) = $term->screen_cur ([$row, $col])
		1284
		1285	Return the current coordinates of the text cursor position and optionally
		1286	set it (which is usually bad as applications don't expect that).
411		1287
412	=item ($row, $col) = $term->selection_mark ([$row, $col])	1288	=item ($row, $col) = $term->selection_mark ([$row, $col])
413		1289
414	=item ($row, $col) = $term->selection_beg ([$row, $col])	1290	=item ($row, $col) = $term->selection_beg ([$row, $col])
415		1291
416	=item ($row, $col) = $term->selection_end ([$row, $col])	1292	=item ($row, $col) = $term->selection_end ([$row, $col])
417		1293
418	Return the current values of the selection mark, begin or end positions,	1294	Return the current values of the selection mark, begin or end positions.
419	and optionally set them to new values.
420		1295
		1296	When arguments are given, then the selection coordinates are set to
		1297	C<$row> and C<$col>, and the selection screen is set to the current
		1298	screen.
		1299
		1300	=item $screen = $term->selection_screen ([$screen])
		1301
		1302	Returns the current selection screen, and then optionally sets it.
		1303
		1304	=item $term->selection_make ($eventtime[, $rectangular])
		1305
		1306	Tries to make a selection as set by C<selection_beg> and
		1307	C<selection_end>. If C<$rectangular> is true (default: false), a
		1308	rectangular selection will be made. This is the preferred function to make
		1309	a selection.
		1310
421	=item $success = $term->selection_grab ($eventtime)	1311	=item $success = $term->selection_grab ($eventtime[, $clipboard])
422		1312
423	Try to request the primary selection from the server (for example, as set	1313	Try to acquire ownership of the primary (clipboard if C<$clipboard> is
424	by the next method).	1314	true) selection from the server. The corresponding text can be set
		1315	with the next method. No visual feedback will be given. This function
		1316	is mostly useful from within C<on_sel_grab> hooks.
425		1317
426	=item $oldtext = $term->selection ([$newtext])	1318	=item $oldtext = $term->selection ([$newtext, $clipboard])
427		1319
428	Return the current selection text and optionally replace it by C<$newtext>.	1320	Return the current selection (clipboard if C<$clipboard> is true) text
		1321	and optionally replace it by C<$newtext>.
429		1322
		1323	=item $term->selection_clear ([$clipboard])
		1324
		1325	Revoke ownership of the primary (clipboard if C<$clipboard> is true) selection.
		1326
430	#=item $term->overlay ($x, $y, $text)	1327	=item $term->overlay_simple ($x, $y, $text)
431	#	1328
432	#Create a simple multi-line overlay box. See the next method for details.	1329	Create a simple multi-line overlay box. See the next method for details.
433	#	1330
434	#=cut	1331	=cut
435		1332
436	sub urxvt::term::scr_overlay {	1333	sub overlay_simple {
437	die;
438	my ($self, $x, $y, $text) = @_;	1334	my ($self, $x, $y, $text) = @_;
439		1335
440	my @lines = split /\n/, $text;	1336	my @lines = split /\n/, $text;
441		1337
442	my $w = 0;	1338	my $w = List::Util::max map $self->strwidth ($_), @lines;
443	for (map $self->strwidth ($_), @lines) {
444	$w = $_ if $w < $_;
445	}
446		1339
447	$self->scr_overlay_new ($x, $y, $w, scalar @lines);	1340	my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
448	$self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;	1341	$overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
		1342
		1343	$overlay
449	}	1344	}
450		1345
451	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])	1346	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
452		1347
453	Create a new (empty) overlay at the given position with the given	1348	Create a new (empty) overlay at the given position with the given
…		…
461	right/bottom side, respectively.	1356	right/bottom side, respectively.
462		1357
463	This method returns an urxvt::overlay object. The overlay will be visible	1358	This method returns an urxvt::overlay object. The overlay will be visible
464	as long as the perl object is referenced.	1359	as long as the perl object is referenced.
465		1360
466	Currently, the only method on the C<urxvt::overlay> object is C<set>:	1361	The methods currently supported on C<urxvt::overlay> objects are:
467		1362
		1363	=over 4
		1364
468	=item $overlay->set ($x, $y, $text, $rend)	1365	=item $overlay->set ($x, $y, $text[, $rend])
469		1366
470	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts	1367	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts
471	text in rxvt-unicode's special encoding and an array of rendition values	1368	text in rxvt-unicode's special encoding and an array of rendition values
472	at a specific position inside the overlay.	1369	at a specific position inside the overlay.
473		1370
		1371	If C<$rend> is missing, then the rendition will not be changed.
		1372
		1373	=item $overlay->hide
		1374
		1375	If visible, hide the overlay, but do not destroy it.
		1376
		1377	=item $overlay->show
		1378
		1379	If hidden, display the overlay again.
		1380
		1381	=back
		1382
		1383	=item $popup = $term->popup ($event)
		1384
		1385	Creates a new C<urxvt::popup> object that implements a popup menu. The
		1386	C<$event> I<must> be the event causing the menu to pop up (a button event,
		1387	currently).
		1388
		1389	=cut
		1390
		1391	sub popup {
		1392	my ($self, $event) = @_;
		1393
		1394	$self->grab ($event->{time}, 1)
		1395	or return;
		1396
		1397	my $popup = bless {
		1398	term => $self,
		1399	event => $event,
		1400	}, urxvt::popup::;
		1401
		1402	Scalar::Util::weaken $popup->{term};
		1403
		1404	$self->{_destroy}{$popup} = urxvt::destroy_hook { $popup->{popup}->destroy };
		1405	Scalar::Util::weaken $self->{_destroy}{$popup};
		1406
		1407	$popup
		1408	}
		1409
474	=item $cellwidth = $term->strwidth $string	1410	=item $cellwidth = $term->strwidth ($string)
475		1411
476	Returns the number of screen-cells this string would need. Correctly	1412	Returns the number of screen-cells this string would need. Correctly
477	accounts for wide and combining characters.	1413	accounts for wide and combining characters.
478		1414
479	=item $octets = $term->locale_encode $string	1415	=item $octets = $term->locale_encode ($string)
480		1416
481	Convert the given text string into the corresponding locale encoding.	1417	Convert the given text string into the corresponding locale encoding.
482		1418
483	=item $string = $term->locale_decode $octets	1419	=item $string = $term->locale_decode ($octets)
484		1420
485	Convert the given locale-encoded octets into a perl string.	1421	Convert the given locale-encoded octets into a perl string.
486		1422
		1423	=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
		1424
		1425	XORs the rendition values in the given span with the provided value
		1426	(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
		1427	refresh hooks to provide effects similar to the selection.
		1428
		1429	=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
		1430
		1431	Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
		1432	whitespace will additionally be xored with the C<$rstyle2>, which defaults
		1433	to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
		1434	it instead. Both styles I<MUST NOT> contain font styles.
		1435
		1436	=item $term->scr_bell
		1437
		1438	Ring the bell!
		1439
		1440	=item $term->scr_add_lines ($string)
		1441
		1442	Write the given text string to the screen, as if output by the application
		1443	running inside the terminal. It may not contain command sequences (escape
		1444	codes), but is free to use line feeds, carriage returns and tabs. The
		1445	string is a normal text string, not in locale-dependent encoding.
		1446
		1447	Normally its not a good idea to use this function, as programs might be
		1448	confused by changes in cursor position or scrolling. Its useful inside a
		1449	C<on_add_lines> hook, though.
		1450
		1451	=item $term->scr_change_screen ($screen)
		1452
		1453	Switch to given screen - 0 primary, 1 secondary.
		1454
		1455	=item $term->cmd_parse ($octets)
		1456
		1457	Similar to C<scr_add_lines>, but the argument must be in the
		1458	locale-specific encoding of the terminal and can contain command sequences
		1459	(escape codes) that will be interpreted.
		1460
487	=item $term->tt_write ($octets)	1461	=item $term->tt_write ($octets)
488		1462
489	Write the octets given in C<$data> to the tty (i.e. as program input). To	1463	Write the octets given in C<$octets> to the tty (i.e. as program input). To
490	pass characters instead of octets, you should convert your strings first	1464	pass characters instead of octets, you should convert your strings first
491	to the locale-specific encoding using C<< $term->locale_encode >>.	1465	to the locale-specific encoding using C<< $term->locale_encode >>.
492		1466
		1467	=item $term->tt_paste ($octets)
		1468
		1469	Write the octets given in C<$octets> to the tty as a paste, converting NL to
		1470	CR and bracketing the data with control sequences if bracketed paste mode
		1471	is set.
		1472
		1473	=item $old_events = $term->pty_ev_events ([$new_events])
		1474
		1475	Replaces the event mask of the pty watcher by the given event mask. Can
		1476	be used to suppress input and output handling to the pty/tty. See the
		1477	description of C<< urxvt::timer->events >>. Make sure to always restore
		1478	the previous value.
		1479
		1480	=item $fd = $term->pty_fd
		1481
		1482	Returns the master file descriptor for the pty in use, or C<-1> if no pty
		1483	is used.
		1484
		1485	=item $windowid = $term->parent
		1486
		1487	Return the window id of the toplevel window.
		1488
		1489	=item $windowid = $term->vt
		1490
		1491	Return the window id of the terminal window.
		1492
		1493	=item $term->vt_emask_add ($x_event_mask)
		1494
		1495	Adds the specified events to the vt event mask. Useful e.g. when you want
		1496	to receive pointer events all the times:
		1497
		1498	$term->vt_emask_add (urxvt::PointerMotionMask);
		1499
		1500	=item $term->set_urgency ($set)
		1501
		1502	Enable/disable the urgency hint on the toplevel window.
		1503
		1504	=item $term->focus_in
		1505
		1506	=item $term->focus_out
		1507
		1508	=item $term->key_press ($state, $keycode[, $time])
		1509
		1510	=item $term->key_release ($state, $keycode[, $time])
		1511
		1512	Deliver various fake events to to terminal.
		1513
		1514	=item $window_width = $term->width
		1515
		1516	=item $window_height = $term->height
		1517
		1518	=item $font_width = $term->fwidth
		1519
		1520	=item $font_height = $term->fheight
		1521
		1522	=item $font_ascent = $term->fbase
		1523
493	=item $nrow = $term->nrow	1524	=item $terminal_rows = $term->nrow
494		1525
495	=item $ncol = $term->ncol	1526	=item $terminal_columns = $term->ncol
496		1527
497	Return the number of rows/columns of the terminal window (i.e. as	1528	=item $has_focus = $term->focus
498	specified by C<-geometry>, excluding any scrollback).
499		1529
		1530	=item $is_mapped = $term->mapped
		1531
		1532	=item $max_scrollback = $term->saveLines
		1533
		1534	=item $nrow_plus_saveLines = $term->total_rows
		1535
		1536	=item $topmost_scrollback_row = $term->top_row
		1537
		1538	Return various integers describing terminal characteristics.
		1539
		1540	=item $x_display = $term->display_id
		1541
		1542	Return the DISPLAY used by rxvt-unicode.
		1543
		1544	=item $lc_ctype = $term->locale
		1545
		1546	Returns the LC_CTYPE category string used by this rxvt-unicode.
		1547
500	=item $nsaved = $term->nsaved	1548	=item $env = $term->env
501		1549
502	Returns the number of lines in the scrollback buffer.	1550	Returns a copy of the environment in effect for the terminal as a hashref
		1551	similar to C<\%ENV>.
		1552
		1553	=item @envv = $term->envv
		1554
		1555	Returns the environment as array of strings of the form C<VAR=VALUE>.
		1556
		1557	=item @argv = $term->argv
		1558
		1559	Return the argument vector as this terminal, similar to @ARGV, but
		1560	includes the program name as first element.
		1561
		1562	=cut
		1563
		1564	sub env {
		1565	+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), $_[0]->envv }
		1566	}
		1567
		1568	=item $modifiermask = $term->ModLevel3Mask
		1569
		1570	=item $modifiermask = $term->ModMetaMask
		1571
		1572	=item $modifiermask = $term->ModNumLockMask
		1573
		1574	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
		1575	AltGr), the meta key (often Alt) and the num lock key, if applicable.
		1576
		1577	=item $screen = $term->current_screen
		1578
		1579	Returns the currently displayed screen (0 primary, 1 secondary).
		1580
		1581	=item $cursor_is_hidden = $term->hidden_cursor
		1582
		1583	Returns whether the cursor is currently hidden or not.
503		1584
504	=item $view_start = $term->view_start ([$newvalue])	1585	=item $view_start = $term->view_start ([$newvalue])
505		1586
506	Returns the negative row number of the topmost line. Minimum value is	1587	Returns the row number of the topmost displayed line. Maximum value is
507	C<0>, which displays the normal terminal contents. Larger values scroll	1588	C<0>, which displays the normal terminal contents. Lower values scroll
508	this many lines into the scrollback buffer.	1589	this many lines into the scrollback buffer.
509		1590
510	=item $term->want_refresh	1591	=item $term->want_refresh
511		1592
512	Requests a screen refresh. At the next opportunity, rxvt-unicode will	1593	Requests a screen refresh. At the next opportunity, rxvt-unicode will
…		…
515		1596
516	Used after changing terminal contents to display them.	1597	Used after changing terminal contents to display them.
517		1598
518	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])	1599	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
519		1600
520	Returns the text of the entire row with number C<$row_number>. Row C<0>	1601	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	1602	is the topmost terminal line, row C<< $term->nrow-1 >> is the bottommost
522	terminal line. The scrollback buffer starts at line C<-1> and extends to	1603	terminal line. Nothing will be returned if a nonexistent line
523	line C<< -$term->nsaved >>.	1604	is requested.
524		1605
525	If C<$new_text> is specified, it will replace characters in the current	1606	If C<$new_text> is specified, it will replace characters in the current
526	line, starting at column C<$start_col> (default C<0>), which is useful	1607	line, starting at column C<$start_col> (default C<0>), which is useful
527	to replace only parts of a line. The font index in the rendition will	1608	to replace only parts of a line. The font index in the rendition will
528	automatically be updated.	1609	automatically be updated.
529		1610
530	C<$text> is in a special encoding: tabs and wide characters that use more	1611	C<$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	1612	than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
532	(C<chr 65535>). Characters with combining characters and other characters	1613	characters. Characters with combining characters and other characters that
533	that do not fit into the normal tetx encoding will be replaced with	1614	do not fit into the normal text encoding will be replaced with characters
534	characters in the private use area.	1615	in the private use area.
535		1616
536	You have to obey this encoding when changing text. The advantage is	1617	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	1618	that C<substr> and similar functions work on screen cells and not on
538	characters.	1619	characters.
539		1620
…		…
550		1631
551	See the section on RENDITION, above.	1632	See the section on RENDITION, above.
552		1633
553	=item $length = $term->ROW_l ($row_number[, $new_length])	1634	=item $length = $term->ROW_l ($row_number[, $new_length])
554		1635
555	Returns the number of screen cells that are in use ("the line length"). If	1636	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	1637	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.	1638	line is joined with the following one.
		1639
		1640	=item $bool = $term->is_longer ($row_number)
		1641
		1642	Returns true if the row is part of a multiple-row logical "line" (i.e.
		1643	joined with the following row), which means all characters are in use
		1644	and it is continued on the next row (and possibly a continuation of the
		1645	previous row(s)).
		1646
		1647	=item $line = $term->line ($row_number)
		1648
		1649	Create and return a new C<urxvt::line> object that stores information
		1650	about the logical line that row C<$row_number> is part of. It supports the
		1651	following methods:
		1652
		1653	=over 4
		1654
		1655	=item $text = $line->t ([$new_text])
		1656
		1657	Returns or replaces the full text of the line, similar to C<ROW_t>
		1658
		1659	=item $rend = $line->r ([$new_rend])
		1660
		1661	Returns or replaces the full rendition array of the line, similar to C<ROW_r>
		1662
		1663	=item $length = $line->l
		1664
		1665	Returns the length of the line in cells, similar to C<ROW_l>.
		1666
		1667	=item $rownum = $line->beg
		1668
		1669	=item $rownum = $line->end
		1670
		1671	Return the row number of the first/last row of the line, respectively.
		1672
		1673	=item $offset = $line->offset_of ($row, $col)
		1674
		1675	Returns the character offset of the given row|col pair within the logical
		1676	line. Works for rows outside the line, too, and returns corresponding
		1677	offsets outside the string.
		1678
		1679	=item ($row, $col) = $line->coord_of ($offset)
		1680
		1681	Translates a string offset into terminal coordinates again.
		1682
		1683	=back
		1684
		1685	=cut
		1686
		1687	sub line {
		1688	my ($self, $row) = @_;
		1689
		1690	my $maxrow = $self->nrow - 1;
		1691
		1692	my ($beg, $end) = ($row, $row);
		1693
		1694	--$beg while $self->ROW_is_longer ($beg - 1);
		1695	++$end while $self->ROW_is_longer ($end) && $end < $maxrow;
		1696
		1697	bless {
		1698	term => $self,
		1699	beg => $beg,
		1700	end => $end,
		1701	ncol => $self->ncol,
		1702	len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),
		1703	}, urxvt::line::
		1704	}
		1705
		1706	sub urxvt::line::t {
		1707	my ($self) = @_;
		1708
		1709	if (@_ > 1) {
		1710	$self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
		1711	for $self->{beg} .. $self->{end};
		1712	}
		1713
		1714	defined wantarray &&
		1715	substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),
		1716	0, $self->{len}
		1717	}
		1718
		1719	sub urxvt::line::r {
		1720	my ($self) = @_;
		1721
		1722	if (@_ > 1) {
		1723	$self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
		1724	for $self->{beg} .. $self->{end};
		1725	}
		1726
		1727	if (defined wantarray) {
		1728	my $rend = [
		1729	map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}
		1730	];
		1731	$#$rend = $self->{len} - 1;
		1732	return $rend;
		1733	}
		1734
		1735	()
		1736	}
		1737
		1738	sub urxvt::line::beg { $_[0]{beg} }
		1739	sub urxvt::line::end { $_[0]{end} }
		1740	sub urxvt::line::l { $_[0]{len} }
		1741
		1742	sub urxvt::line::offset_of {
		1743	my ($self, $row, $col) = @_;
		1744
		1745	($row - $self->{beg}) * $self->{ncol} + $col
		1746	}
		1747
		1748	sub urxvt::line::coord_of {
		1749	my ($self, $offset) = @_;
		1750
		1751	use integer;
		1752
		1753	(
		1754	$offset / $self->{ncol} + $self->{beg},
		1755	$offset % $self->{ncol}
		1756	)
		1757	}
558		1758
559	=item $text = $term->special_encode $string	1759	=item $text = $term->special_encode $string
560		1760
561	Converts a perl string into the special encoding used by rxvt-unicode,	1761	Converts a perl string into the special encoding used by rxvt-unicode,
562	where one character corresponds to one screen cell. See	1762	where one character corresponds to one screen cell. See
563	C<< $term->ROW_t >> for details.	1763	C<< $term->ROW_t >> for details.
564		1764
565	=item $string = $term->special_decode $text	1765	=item $string = $term->special_decode $text
566		1766
567	Converts rxvt-unicodes text reprsentation into a perl string. See	1767	Converts rxvt-unicodes text representation into a perl string. See
568	C<< $term->ROW_t >> for details.	1768	C<< $term->ROW_t >> for details.
569		1769
		1770	=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
		1771
		1772	=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
		1773
		1774	Register/unregister a synchronous button grab. See the XGrabButton
		1775	manpage.
		1776
		1777	=item $success = $term->grab ($eventtime[, $sync])
		1778
		1779	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
		1780	synchronous (C<$sync> is true). Also remembers the grab timestamp.
		1781
		1782	=item $term->allow_events_async
		1783
		1784	Calls XAllowEvents with AsyncBoth for the most recent grab.
		1785
		1786	=item $term->allow_events_sync
		1787
		1788	Calls XAllowEvents with SyncBoth for the most recent grab.
		1789
		1790	=item $term->allow_events_replay
		1791
		1792	Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
		1793	recent grab.
		1794
		1795	=item $term->ungrab
		1796
		1797	Calls XUngrabPointer and XUngrabKeyboard for the most recent grab. Is called automatically on
		1798	evaluation errors, as it is better to lose the grab in the error case as
		1799	the session.
		1800
		1801	=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
		1802
		1803	=item $atom_name = $term->XGetAtomName ($atom)
		1804
		1805	=item @atoms = $term->XListProperties ($window)
		1806
		1807	=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
		1808
		1809	=item $term->XChangeProperty ($window, $property, $type, $format, $octets)
		1810
		1811	=item $term->XDeleteProperty ($window, $property)
		1812
		1813	=item $window = $term->DefaultRootWindow
		1814
		1815	=item $term->XReparentWindow ($window, $parent, [$x, $y])
		1816
		1817	=item $term->XMapWindow ($window)
		1818
		1819	=item $term->XUnmapWindow ($window)
		1820
		1821	=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
		1822
		1823	=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
		1824
		1825	=item $term->XChangeInput ($window, $add_events[, $del_events])
		1826
		1827	=item $keysym = $term->XStringToKeysym ($string)
		1828
		1829	=item $string = $term->XKeysymToString ($keysym)
		1830
		1831	Various X or X-related functions. The C<$term> object only serves as
		1832	the source of the display, otherwise those functions map more-or-less
		1833	directly onto the X functions of the same name.
		1834
570	=back	1835	=back
		1836
		1837	=cut
		1838
		1839	package urxvt::popup;
		1840
		1841	=head2 The C<urxvt::popup> Class
		1842
		1843	=over 4
		1844
		1845	=cut
		1846
		1847	sub add_item {
		1848	my ($self, $item) = @_;
		1849
		1850	$item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal};
		1851	$item->{rend}{hover} = "\x1b[0;30;46m" unless exists $item->{rend}{hover};
		1852	$item->{rend}{active} = "\x1b[m" unless exists $item->{rend}{active};
		1853
		1854	$item->{render} ||= sub { $_[0]{text} };
		1855
		1856	push @{ $self->{item} }, $item;
		1857	}
		1858
		1859	=item $popup->add_title ($title)
		1860
		1861	Adds a non-clickable title to the popup.
		1862
		1863	=cut
		1864
		1865	sub add_title {
		1866	my ($self, $title) = @_;
		1867
		1868	$self->add_item ({
		1869	rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
		1870	text => $title,
		1871	activate => sub { },
		1872	});
		1873	}
		1874
		1875	=item $popup->add_separator ([$sepchr])
		1876
		1877	Creates a separator, optionally using the character given as C<$sepchr>.
		1878
		1879	=cut
		1880
		1881	sub add_separator {
		1882	my ($self, $sep) = @_;
		1883
		1884	$sep ||= "=";
		1885
		1886	$self->add_item ({
		1887	rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
		1888	text => "",
		1889	render => sub { $sep x $self->{term}->ncol },
		1890	activate => sub { },
		1891	});
		1892	}
		1893
		1894	=item $popup->add_button ($text, $cb)
		1895
		1896	Adds a clickable button to the popup. C<$cb> is called whenever it is
		1897	selected.
		1898
		1899	=cut
		1900
		1901	sub add_button {
		1902	my ($self, $text, $cb) = @_;
		1903
		1904	$self->add_item ({ type => "button", text => $text, activate => $cb});
		1905	}
		1906
		1907	=item $popup->add_toggle ($text, $initial_value, $cb)
		1908
		1909	Adds a toggle/checkbox item to the popup. The callback gets called
		1910	whenever it gets toggled, with a boolean indicating its new value as its
		1911	first argument.
		1912
		1913	=cut
		1914
		1915	sub add_toggle {
		1916	my ($self, $text, $value, $cb) = @_;
		1917
		1918	my $item; $item = {
		1919	type => "button",
		1920	text => " $text",
		1921	value => $value,
		1922	render => sub { ($_[0]{value} ? "* " : " ") . $text },
		1923	activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
		1924	};
		1925
		1926	$self->add_item ($item);
		1927	}
		1928
		1929	=item $popup->show
		1930
		1931	Displays the popup (which is initially hidden).
		1932
		1933	=cut
		1934
		1935	sub show {
		1936	my ($self) = @_;
		1937
		1938	local $urxvt::popup::self = $self;
		1939
		1940	my $env = $self->{term}->env;
		1941	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
		1942	delete $env->{LC_ALL};
		1943	$env->{LC_CTYPE} = $self->{term}->locale;
		1944
		1945	my $term = urxvt::term->new (
		1946	$env, "popup",
		1947	"--perl-lib" => "", "--perl-ext-common" => "",
		1948	"-pty-fd" => -1, "-sl" => 0,
		1949	"-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
		1950	"--transient-for" => $self->{term}->parent,
		1951	"-display" => $self->{term}->display_id,
		1952	"-pe" => "urxvt-popup",
		1953	) or die "unable to create popup window\n";
		1954
		1955	unless (delete $term->{urxvt_popup_init_done}) {
		1956	$term->ungrab;
		1957	$term->destroy;
		1958	die "unable to initialise popup window\n";
		1959	}
		1960	}
		1961
		1962	sub DESTROY {
		1963	my ($self) = @_;
		1964
		1965	delete $self->{term}{_destroy}{$self};
		1966	$self->{term}->ungrab;
		1967	}
		1968
		1969	=back
		1970
		1971	=cut
		1972
		1973	package urxvt::watcher;
571		1974
572	=head2 The C<urxvt::timer> Class	1975	=head2 The C<urxvt::timer> Class
573		1976
574	This class implements timer watchers/events. Time is represented as a	1977	This class implements timer watchers/events. Time is represented as a
575	fractional number of seconds since the epoch. Example:	1978	fractional number of seconds since the epoch. Example:
…		…
579	->new	1982	->new
580	->interval (1)	1983	->interval (1)
581	->cb (sub {	1984	->cb (sub {
582	$term->{overlay}->set (0, 0,	1985	$term->{overlay}->set (0, 0,
583	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);	1986	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
584	});	1987	});
585		1988
586	=over 4	1989	=over 4
587		1990
588	=item $timer = new urxvt::timer	1991	=item $timer = new urxvt::timer
589		1992
…		…
592		1995
593	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })	1996	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })
594		1997
595	Set the callback to be called when the timer triggers.	1998	Set the callback to be called when the timer triggers.
596		1999
597	=item $tstamp = $timer->at
598
599	Return the time this watcher will fire next.
600
601	=item $timer = $timer->set ($tstamp)	2000	=item $timer = $timer->set ($tstamp[, $interval])
602		2001
603	Set the time the event is generated to $tstamp.	2002	Set the time the event is generated to $tstamp (and optionally specifies a
		2003	new $interval).
604		2004
605	=item $timer = $timer->interval ($interval)	2005	=item $timer = $timer->interval ($interval)
606		2006
607	Normally (and when C<$interval> is C<0>), the timer will automatically	2007	By default (and when C<$interval> is C<0>), the timer will automatically
608	stop after it has fired once. If C<$interval> is non-zero, then the timer	2008	stop after it has fired once. If C<$interval> is non-zero, then the timer
609	is automatically rescheduled at the given intervals.	2009	is automatically rescheduled at the given intervals.
610		2010
611	=item $timer = $timer->start	2011	=item $timer = $timer->start
612		2012
613	Start the timer.	2013	Start the timer.
614		2014
615	=item $timer = $timer->start ($tstamp)	2015	=item $timer = $timer->start ($tstamp[, $interval])
616		2016
617	Set the event trigger time to C<$tstamp> and start the timer.	2017	Set the event trigger time to C<$tstamp> and start the timer. Optionally
		2018	also replaces the interval.
		2019
		2020	=item $timer = $timer->after ($delay[, $interval])
		2021
		2022	Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
618		2023
619	=item $timer = $timer->stop	2024	=item $timer = $timer->stop
620		2025
621	Stop the timer.	2026	Stop the timer.
622		2027
…		…
628		2033
629	$term->{socket} = ...	2034	$term->{socket} = ...
630	$term->{iow} = urxvt::iow	2035	$term->{iow} = urxvt::iow
631	->new	2036	->new
632	->fd (fileno $term->{socket})	2037	->fd (fileno $term->{socket})
633	->events (1) # wait for read data	2038	->events (urxvt::EV_READ)
634	->start	2039	->start
635	->cb (sub {	2040	->cb (sub {
636	my ($iow, $revents) = @_;	2041	my ($iow, $revents) = @_;
637	# $revents must be 1 here, no need to check	2042	# $revents must be 1 here, no need to check
638	sysread $term->{socket}, my $buf, 8192	2043	sysread $term->{socket}, my $buf, 8192
…		…
651	Set the callback to be called when io events are triggered. C<$reventmask>	2056	Set the callback to be called when io events are triggered. C<$reventmask>
652	is a bitset as described in the C<events> method.	2057	is a bitset as described in the C<events> method.
653		2058
654	=item $iow = $iow->fd ($fd)	2059	=item $iow = $iow->fd ($fd)
655		2060
656	Set the filedescriptor (not handle) to watch.	2061	Set the file descriptor (not handle) to watch.
657		2062
658	=item $iow = $iow->events ($eventmask)	2063	=item $iow = $iow->events ($eventmask)
659		2064
660	Set the event mask to watch. Bit #0 (value C<1>) enables watching for read	2065	Set the event mask to watch. The only allowed values are
661	data, Bit #1 (value C<2>) enables watching for write data.	2066	C<urxvt::EV_READ> and C<urxvt::EV_WRITE>, which might be ORed
		2067	together, or C<urxvt::EV_NONE>.
662		2068
663	=item $iow = $iow->start	2069	=item $iow = $iow->start
664		2070
665	Start watching for requested events on the given handle.	2071	Start watching for requested events on the given handle.
666		2072
667	=item $iow = $iow->stop	2073	=item $iow = $iow->stop
668		2074
669	Stop watching for events on the given filehandle.	2075	Stop watching for events on the given file handle.
		2076
		2077	=back
		2078
		2079	=head2 The C<urxvt::iw> Class
		2080
		2081	This class implements idle watchers, that get called automatically when
		2082	the process is idle. They should return as fast as possible, after doing
		2083	some useful work.
		2084
		2085	=over 4
		2086
		2087	=item $iw = new urxvt::iw
		2088
		2089	Create a new idle watcher object in stopped state.
		2090
		2091	=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
		2092
		2093	Set the callback to be called when the watcher triggers.
		2094
		2095	=item $timer = $timer->start
		2096
		2097	Start the watcher.
		2098
		2099	=item $timer = $timer->stop
		2100
		2101	Stop the watcher.
		2102
		2103	=back
		2104
		2105	=head2 The C<urxvt::pw> Class
		2106
		2107	This class implements process watchers. They create an event whenever a
		2108	process exits, after which they stop automatically.
		2109
		2110	my $pid = fork;
		2111	...
		2112	$term->{pw} = urxvt::pw
		2113	->new
		2114	->start ($pid)
		2115	->cb (sub {
		2116	my ($pw, $exit_status) = @_;
		2117	...
		2118	});
		2119
		2120	=over 4
		2121
		2122	=item $pw = new urxvt::pw
		2123
		2124	Create a new process watcher in stopped state.
		2125
		2126	=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
		2127
		2128	Set the callback to be called when the timer triggers.
		2129
		2130	=item $pw = $timer->start ($pid)
		2131
		2132	Tells the watcher to start watching for process C<$pid>.
		2133
		2134	=item $pw = $pw->stop
		2135
		2136	Stop the watcher.
670		2137
671	=back	2138	=back
672		2139
673	=head1 ENVIRONMENT	2140	=head1 ENVIRONMENT
674		2141
…		…
677	This variable controls the verbosity level of the perl extension. Higher	2144	This variable controls the verbosity level of the perl extension. Higher
678	numbers indicate more verbose output.	2145	numbers indicate more verbose output.
679		2146
680	=over 4	2147	=over 4
681		2148
682	=item 0 - only fatal messages	2149	=item == 0 - fatal messages
683		2150
684	=item 3 - script loading and management	2151	=item >= 3 - script loading and management
685		2152
686	=item 10 - all events received	2153	=item >=10 - all called hooks
		2154
		2155	=item >=11 - hook return values
687		2156
688	=back	2157	=back
689		2158
690	=head1 AUTHOR	2159	=head1 AUTHOR
691		2160
692	Marc Lehmann <pcg@goof.com>	2161	Marc Lehmann <schmorp@schmorp.de>
693	http://software.schmorp.de/pkg/rxvt-unicode	2162	http://software.schmorp.de/pkg/rxvt-unicode
694		2163
695	=cut	2164	=cut
696		2165
697	1	2166	1
		2167
		2168	# vim: sw=3:

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