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Revision 1.5 by root, Mon Jan 2 17:20:00 2006 UTC vs.
Revision 1.250 by sf-exg, Fri Dec 26 21:49:11 2014 UTC

		1	=encoding utf8
		2
1	=head1 NAME	3	=head1 NAME
2		4
3	rxvtperl - rxvt-unicode's embedded perl interpreter	5	urxvtperl - rxvt-unicode's embedded perl interpreter
4		6
5	=head1 SYNOPSIS	7	=head1 SYNOPSIS
6		8
7	* Put your scripts into F<@@RXVT_LIBDIR@@/urxvt/perl-ext/>, they will be loaded automatically.	9	# create a file grab_test in $HOME:
8
9	* Each script will only be loaded once, even in urxvtd, and will be valid
10	globally.
11
12	* Scripts are evaluated in a 'use strict' and 'use utf8' environment, and
13	thus must be encoded as UTF-8.
14		10
15	sub on_sel_grab {	11	sub on_sel_grab {
16	warn "you selected ", $_[0]->selection;	12	warn "you selected ", $_[0]->selection;
17	()	13	()
18	}	14	}
19		15
20	1	16	# start a urxvt using it:
		17
		18	urxvt --perl-lib $HOME -pe grab_test
21		19
22	=head1 DESCRIPTION	20	=head1 DESCRIPTION
23		21
		22	Every time a terminal object gets created, extension scripts specified via
		23	the C<perl> resource are loaded and associated with it.
		24
		25	Scripts are compiled in a 'use strict "vars"' and 'use utf8' environment, and
		26	thus must be encoded as UTF-8.
		27
		28	Each script will only ever be loaded once, even in urxvtd, where
		29	scripts will be shared (but not enabled) for all terminals.
		30
		31	You can disable the embedded perl interpreter by setting both "perl-ext"
		32	and "perl-ext-common" resources to the empty string.
		33
		34	=head1 PREPACKAGED EXTENSIONS
		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> >>.
		39
		40	You can activate them like this:
		41
		42	urxvt -pe <extensionname>
		43
		44	Or by adding them to the resource for extensions loaded by default:
		45
		46	URxvt.perl-ext-common: default,selection-autotransform
		47
		48	Extensions may add additional resources and C<actions>, i.e., methods
		49	which can be bound to a key and invoked by the user. An extension can
		50	define the resources it support using so called META comments,
		51	described below. Similarly to builtin resources, extension resources
		52	can also be specified on the command line as long options (with C<.>
		53	replaced by C<->), in which case the corresponding extension is loaded
		54	automatically. For this to work the extension B<must> define META
		55	comments for its resources.
		56
		57	=head1 API DOCUMENTATION
		58
		59	=head2 General API Considerations
		60
		61	All objects (such as terminals, time watchers etc.) are typical
		62	reference-to-hash objects. The hash can be used to store anything you
		63	like. All members starting with an underscore (such as C<_ptr> or
		64	C<_hook>) are reserved for internal uses and B<MUST NOT> be accessed or
		65	modified).
		66
		67	When objects are destroyed on the C++ side, the perl object hashes are
		68	emptied, so its best to store related objects such as time watchers and
		69	the like inside the terminal object so they get destroyed as soon as the
		70	terminal is destroyed.
		71
		72	Argument names also often indicate the type of a parameter. Here are some
		73	hints on what they mean:
		74
		75	=over 4
		76
		77	=item $text
		78
		79	Rxvt-unicode's special way of encoding text, where one "unicode" character
		80	always represents one screen cell. See L<ROW_t> for a discussion of this format.
		81
		82	=item $string
		83
		84	A perl text string, with an emphasis on I<text>. It can store all unicode
		85	characters and is to be distinguished with text encoded in a specific
		86	encoding (often locale-specific) and binary data.
		87
		88	=item $octets
		89
		90	Either binary data or - more common - a text string encoded in a
		91	locale-specific way.
		92
		93	=item $keysym
		94
		95	an integer that is a valid X11 keysym code. You can convert a string
		96	into a keysym and viceversa by using C<XStringToKeysym> and
		97	C<XKeysymToString>.
		98
		99	=back
		100
		101	=head2 Extension Objects
		102
		103	Every perl extension is a perl class. A separate perl object is created
		104	for each terminal, and each terminal has its own set of extension objects,
		105	which are passed as the first parameter to hooks. So extensions can use
		106	their C<$self> object without having to think about clashes with other
		107	extensions or other terminals, with the exception of methods and members
		108	that begin with an underscore character C<_>: these are reserved for
		109	internal use.
		110
		111	Although it isn't a C<urxvt::term> object, you can call all methods of the
		112	C<urxvt::term> class on this object.
		113
		114	Additional methods only supported for extension objects are described in
		115	the C<urxvt::extension> section below.
		116
		117	=head2 META comments
		118
		119	Rxvt-unicode recognizes special meta comments in extensions that define
		120	different types of metadata.
		121
		122	Currently, it recognises only one such comment:
		123
		124	=over 4
		125
		126	=item #:META:RESOURCE:name:type:desc
		127
		128	The RESOURCE comment defines a resource used by the extension, where
		129	C<name> is the resource name, C<type> is the resource type, C<boolean>
		130	or C<string>, and C<desc> is the resource description.
		131
		132	=back
		133
24	=head2 Hooks	134	=head2 Hooks
25		135
26	The following subroutines can be declared in loaded scripts, and will be called	136	The following subroutines can be declared in extension files, and will be
27	whenever the relevant event happens.	137	called whenever the relevant event happens.
28		138
29	All of them must return a boolean value. If it is true, then the event	139	The first argument passed to them is an extension object as described in
30	counts as being I<consumed>, and the invocation of other hooks is skipped,	140	the in the C<Extension Objects> section.
		141
		142	B<All> of these hooks must return a boolean value. If any of the called
		143	hooks returns true, then the event counts as being I<consumed>, and the
31	and the relevant action might not be carried out by the C++ code.	144	relevant action might not be carried out by the C++ code.
32		145
33	When in doubt, return a false value (preferably C<()>).	146	I<< When in doubt, return a false value (preferably C<()>). >>
34		147
35	=over 4	148	=over 4
36		149
37	=item on_init $term	150	=item on_init $term
38		151
39	Called after a new terminal object has been initialized, but before	152	Called after a new terminal object has been initialized, but before
40	windows are created or the command gets run.	153	windows are created or the command gets run. Most methods are unsafe to
		154	call or deliver senseless data, as terminal size and other characteristics
		155	have not yet been determined. You can safely query and change resources
		156	and options, though. For many purposes the C<on_start> hook is a better
		157	place.
		158
		159	=item on_start $term
		160
		161	Called at the very end of initialisation of a new terminal, just before
		162	trying to map (display) the toplevel and returning to the main loop.
		163
		164	=item on_destroy $term
		165
		166	Called whenever something tries to destroy terminal, when the terminal is
		167	still fully functional (not for long, though).
41		168
42	=item on_reset $term	169	=item on_reset $term
43		170
44	Called after the screen is "reset" for any reason, such as resizing or	171	Called after the screen is "reset" for any reason, such as resizing or
45	control sequences. Here is where you can react on changes to size-related	172	control sequences. Here is where you can react on changes to size-related
46	variables.	173	variables.
47		174
48	=item on_start $term	175	=item on_child_start $term, $pid
49		176
50	Called at the very end of initialisation of a new terminal, just before	177	Called just after the child process has been C<fork>ed.
51	returning to the mainloop.	178
		179	=item on_child_exit $term, $status
		180
		181	Called just after the child process has exited. C<$status> is the status
		182	from C<waitpid>.
52		183
53	=item on_sel_make $term, $eventtime	184	=item on_sel_make $term, $eventtime
54		185
55	Called whenever a selection has been made by the user, but before the	186	Called whenever a selection has been made by the user, but before the
56	selection text is copied, so changes to the beginning, end or type of the	187	selection text is copied, so changes to the beginning, end or type of the
…		…
63		194
64	Called whenever a selection has been copied, but before the selection is	195	Called whenever a selection has been copied, but before the selection is
65	requested from the server. The selection text can be queried and changed	196	requested from the server. The selection text can be queried and changed
66	by calling C<< $term->selection >>.	197	by calling C<< $term->selection >>.
67		198
68	Returning a true value aborts selection grabbing. It will still be hilighted.	199	Returning a true value aborts selection grabbing. It will still be highlighted.
69		200
70	=item on_focus_in $term	201	=item on_sel_extend $term
71		202
72	Called whenever the window gets the keyboard focus, before urxvt does	203	Called whenever the user tries to extend the selection (e.g. with a double
73	focus in processing.	204	click) and is either supposed to return false (normal operation), or
		205	should extend the selection itself and return true to suppress the built-in
		206	processing. This can happen multiple times, as long as the callback
		207	returns true, it will be called on every further click by the user and is
		208	supposed to enlarge the selection more and more, if possible.
74		209
75	=item on_focus_out $term	210	See the F<selection> example extension.
76
77	Called wheneever the window loses keyboard focus, before urxvt does focus
78	out processing.
79		211
80	=item on_view_change $term, $offset	212	=item on_view_change $term, $offset
81		213
82	Called whenever the view offset changes, i..e the user or program	214	Called whenever the view offset changes, i.e. the user or program
83	scrolls. Offset C<0> means display the normal terminal, positive values	215	scrolls. Offset C<0> means display the normal terminal, positive values
84	show this many lines of scrollback.	216	show this many lines of scrollback.
85		217
86	=item on_scroll_back $term, $lines, $saved	218	=item on_scroll_back $term, $lines, $saved
87		219
…		…
91		223
92	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,	224	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
93	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total	225	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
94	number of lines that will be in the scrollback buffer.	226	number of lines that will be in the scrollback buffer.
95		227
96	=item on_tty_activity $term *NYI*	228	=item on_osc_seq $term, $op, $args, $resp
97		229
98	Called whenever the program(s) running in the urxvt window send output.	230	Called on every OSC sequence and can be used to suppress it or modify its
		231	behaviour. The default should be to return an empty list. A true value
		232	suppresses execution of the request completely. Make sure you don't get
		233	confused by recursive invocations when you output an OSC sequence within
		234	this callback.
		235
		236	C<on_osc_seq_perl> should be used for new behaviour.
		237
		238	=item on_osc_seq_perl $term, $args, $resp
		239
		240	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
		241	operating system command) is processed. Cursor position and other state
		242	information is up-to-date when this happens. For interoperability, the
		243	string should start with the extension name (sans -osc) and a semicolon,
		244	to distinguish it from commands for other extensions, and this might be
		245	enforced in the future.
		246
		247	For example, C<overlay-osc> uses this:
		248
		249	sub on_osc_seq_perl {
		250	my ($self, $osc, $resp) = @_;
		251
		252	return unless $osc =~ s/^overlay;//;
		253
		254	... process remaining $osc string
		255	}
		256
		257	Be careful not ever to trust (in a security sense) the data you receive,
		258	as its source can not easily be controlled (e-mail content, messages from
		259	other users on the same system etc.).
		260
		261	For responses, C<$resp> contains the end-of-args separator used by the
		262	sender.
		263
		264	=item on_add_lines $term, $string
		265
		266	Called whenever text is about to be output, with the text as argument. You
		267	can filter/change and output the text yourself by returning a true value
		268	and calling C<< $term->scr_add_lines >> yourself. Please note that this
		269	might be very slow, however, as your hook is called for B<all> text being
		270	output.
		271
		272	=item on_tt_write $term, $octets
		273
		274	Called whenever some data is written to the tty/pty and can be used to
		275	suppress or filter tty input.
		276
		277	=item on_tt_paste $term, $octets
		278
		279	Called whenever text is about to be pasted, with the text as argument. You
		280	can filter/change and paste the text yourself by returning a true value
		281	and calling C<< $term->tt_paste >> yourself. C<$octets> is
		282	locale-encoded.
		283
		284	=item on_line_update $term, $row
		285
		286	Called whenever a line was updated or changed. Can be used to filter
		287	screen output (e.g. underline urls or other useless stuff). Only lines
		288	that are being shown will be filtered, and, due to performance reasons,
		289	not always immediately.
		290
		291	The row number is always the topmost row of the line if the line spans
		292	multiple rows.
		293
		294	Please note that, if you change the line, then the hook might get called
		295	later with the already-modified line (e.g. if unrelated parts change), so
		296	you cannot just toggle rendition bits, but only set them.
99		297
100	=item on_refresh_begin $term	298	=item on_refresh_begin $term
101		299
102	Called just before the screen gets redrawn. Can be used for overlay	300	Called just before the screen gets redrawn. Can be used for overlay or
103	or similar effects by modify terminal contents in refresh_begin, and	301	similar effects by modifying the terminal contents in refresh_begin, and
104	restoring them in refresh_end. The built-in overlay and selection display	302	restoring them in refresh_end. The built-in overlay and selection display
105	code is run after this hook, and takes precedence.	303	code is run after this hook, and takes precedence.
106		304
107	=item on_refresh_end $term	305	=item on_refresh_end $term
108		306
109	Called just after the screen gets redrawn. See C<on_refresh_begin>.	307	Called just after the screen gets redrawn. See C<on_refresh_begin>.
110		308
		309	=item on_action $term, $string
		310
		311	Called whenever an action is invoked for the corresponding extension
		312	(e.g. via a C<extension:string> builtin action bound to a key, see
		313	description of the B<keysym> resource in the urxvt(1) manpage). The
		314	event is simply the action string. Note that an action event is always
		315	associated to a single extension.
		316
		317	=item on_user_command $term, $string *DEPRECATED*
		318
		319	Called whenever a user-configured event is being activated (e.g. via
		320	a C<perl:string> action bound to a key, see description of the B<keysym>
		321	resource in the urxvt(1) manpage).
		322
		323	The event is simply the action string. This interface is going away in
		324	preference to the C<on_action> hook.
		325
		326	=item on_resize_all_windows $term, $new_width, $new_height
		327
		328	Called just after the new window size has been calculated, but before
		329	windows are actually being resized or hints are being set. If this hook
		330	returns a true value, setting of the window hints is being skipped.
		331
		332	=item on_x_event $term, $event
		333
		334	Called on every X event received on the vt window (and possibly other
		335	windows). Should only be used as a last resort. Most event structure
		336	members are not passed.
		337
		338	=item on_root_event $term, $event
		339
		340	Like C<on_x_event>, but is called for events on the root window.
		341
		342	=item on_focus_in $term
		343
		344	Called whenever the window gets the keyboard focus, before rxvt-unicode
		345	does focus in processing.
		346
		347	=item on_focus_out $term
		348
		349	Called whenever the window loses keyboard focus, before rxvt-unicode does
		350	focus out processing.
		351
		352	=item on_configure_notify $term, $event
		353
		354	=item on_property_notify $term, $event
		355
		356	=item on_key_press $term, $event, $keysym, $octets
		357
		358	=item on_key_release $term, $event, $keysym
		359
		360	=item on_button_press $term, $event
		361
		362	=item on_button_release $term, $event
		363
		364	=item on_motion_notify $term, $event
		365
		366	=item on_map_notify $term, $event
		367
		368	=item on_unmap_notify $term, $event
		369
		370	Called whenever the corresponding X event is received for the terminal. If
		371	the hook returns true, then the event will be ignored by rxvt-unicode.
		372
		373	The event is a hash with most values as named by Xlib (see the XEvent
		374	manpage), with the additional members C<row> and C<col>, which are the
		375	(real, not screen-based) row and column under the mouse cursor.
		376
		377	C<on_key_press> additionally receives the string rxvt-unicode would
		378	output, if any, in locale-specific encoding.
		379
		380	=item on_client_message $term, $event
		381
		382	=item on_wm_protocols $term, $event
		383
		384	=item on_wm_delete_window $term, $event
		385
		386	Called when various types of ClientMessage events are received (all with
		387	format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
		388
		389	=item on_bell $term
		390
		391	Called on receipt of a bell character.
		392
111	=back	393	=back
112		394
		395	=cut
		396
		397	package urxvt;
		398
		399	use utf8;
		400	use strict 'vars';
		401	use Carp ();
		402	use Scalar::Util ();
		403	use List::Util ();
		404
		405	our $VERSION = 1;
		406	our $TERM;
		407	our @TERM_INIT; # should go, prevents async I/O etc.
		408	our @TERM_EXT; # should go, prevents async I/O etc.
		409	our @HOOKNAME;
		410	our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
		411	our %OPTION;
		412
		413	our $LIBDIR;
		414	our $RESNAME;
		415	our $RESCLASS;
		416	our $RXVTNAME;
		417
		418	our $NOCHAR = chr 0xffff;
		419
		420	=head2 Variables in the C<urxvt> Package
		421
		422	=over 4
		423
		424	=item $urxvt::LIBDIR
		425
		426	The rxvt-unicode library directory, where, among other things, the perl
		427	modules and scripts are stored.
		428
		429	=item $urxvt::RESCLASS, $urxvt::RESCLASS
		430
		431	The resource class and name rxvt-unicode uses to look up X resources.
		432
		433	=item $urxvt::RXVTNAME
		434
		435	The basename of the installed binaries, usually C<urxvt>.
		436
		437	=item $urxvt::TERM
		438
		439	The current terminal. This variable stores the current C<urxvt::term>
		440	object, whenever a callback/hook is executing.
		441
		442	=item @urxvt::TERM_INIT
		443
		444	All code references in this array will be called as methods of the next newly
		445	created C<urxvt::term> object (during the C<on_init> phase). The array
		446	gets cleared before the code references that were in it are being executed,
		447	so references can push themselves onto it again if they so desire.
		448
		449	This complements to the perl-eval command line option, but gets executed
		450	first.
		451
		452	=item @urxvt::TERM_EXT
		453
		454	Works similar to C<@TERM_INIT>, but contains perl package/class names, which
		455	get registered as normal extensions after calling the hooks in C<@TERM_INIT>
		456	but before other extensions. Gets cleared just like C<@TERM_INIT>.
		457
		458	=back
		459
113	=head2 Functions in the C<urxvt> Package	460	=head2 Functions in the C<urxvt> Package
114		461
115	=over 4	462	=over 4
116		463
117	=item urxvt::fatal $errormessage	464	=item urxvt::fatal $errormessage
118		465
119	Fatally aborts execution with the given error message. Avoid at all	466	Fatally aborts execution with the given error message (which should
120	costs! The only time this is acceptable is when the terminal process	467	include a trailing newline). Avoid at all costs! The only time this
121	starts up.	468	is acceptable (and useful) is in the init hook, where it prevents the
		469	terminal from starting up.
122		470
123	=item urxvt::warn $string	471	=item urxvt::warn $string
124		472
125	Calls C<rxvt_warn> witht eh given string which should not include a	473	Calls C<rxvt_warn> with the given string which should include a trailing
126	newline. The module also overwrites the C<warn> builtin with a function	474	newline. The module also overwrites the C<warn> builtin with a function
127	that calls this function.	475	that calls this function.
128		476
129	Using this function has the advantage that its output ends up in the	477	Using this function has the advantage that its output ends up in the
130	correct place, e.g. on stderr of the connecting urxvtc client.	478	correct place, e.g. on stderr of the connecting urxvtc client.
131		479
132	=item $cellwidth = urxvt::wcswidth $string	480	Messages have a size limit of 1023 bytes currently.
133		481
134	Returns the number of screen-cells this string would need. Correctly	482	=item @terms = urxvt::termlist
135	accounts for wide and combining characters.	483
		484	Returns all urxvt::term objects that exist in this process, regardless of
		485	whether they are started, being destroyed etc., so be careful. Only term
		486	objects that have perl extensions attached will be returned (because there
		487	is no urxvt::term object associated with others).
136		488
137	=item $time = urxvt::NOW	489	=item $time = urxvt::NOW
138		490
139	Returns the "current time" (as per the event loop).	491	Returns the "current time" (as per the event loop).
140		492
141	=cut	493	=item urxvt::CurrentTime
142		494
143	package urxvt;	495	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
		496	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
		497	Button4Mask, Button5Mask, AnyModifier
144		498
145	use strict;	499	=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
		500	ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
		501	PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
		502	Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
		503	KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
		504	ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
		505	FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
146		506
147	our $term;	507	=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
148	our @HOOKNAME;	508	EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
149	our $LIBDIR;	509	GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
		510	UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
		511	ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
		512	CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
		513	SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
		514
		515	Various constants for use in X calls and event processing.
		516
		517	=back
		518
		519	=head2 RENDITION
		520
		521	Rendition bitsets contain information about colour, font, font styles and
		522	similar information for each screen cell.
		523
		524	The following "macros" deal with changes in rendition sets. You should
		525	never just create a bitset, you should always modify an existing one,
		526	as they contain important information required for correct operation of
		527	rxvt-unicode.
		528
		529	=over 4
		530
		531	=item $rend = urxvt::DEFAULT_RSTYLE
		532
		533	Returns the default rendition, as used when the terminal is starting up or
		534	being reset. Useful as a base to start when creating renditions.
		535
		536	=item $rend = urxvt::OVERLAY_RSTYLE
		537
		538	Return the rendition mask used for overlays by default.
		539
		540	=item $rendbit = urxvt::RS_Bold, urxvt::RS_Italic, urxvt::RS_Blink,
		541	urxvt::RS_RVid, urxvt::RS_Uline
		542
		543	Return the bit that enabled bold, italic, blink, reverse-video and
		544	underline, respectively. To enable such a style, just logically OR it into
		545	the bitset.
		546
		547	=item $foreground = urxvt::GET_BASEFG $rend
		548
		549	=item $background = urxvt::GET_BASEBG $rend
		550
		551	Return the foreground/background colour index, respectively.
		552
		553	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
		554
		555	=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
		556
		557	=item $rend = urxvt::SET_COLOR $rend, $new_fg, $new_bg
		558
		559	Replace the foreground/background colour in the rendition mask with the
		560	specified one.
		561
		562	=item $value = urxvt::GET_CUSTOM $rend
		563
		564	Return the "custom" value: Every rendition has 5 bits for use by
		565	extensions. They can be set and changed as you like and are initially
		566	zero.
		567
		568	=item $rend = urxvt::SET_CUSTOM $rend, $new_value
		569
		570	Change the custom value.
		571
		572	=back
		573
		574	=cut
150		575
151	BEGIN {	576	BEGIN {
152	urxvt->bootstrap;
153
154	# overwrite perl's warn	577	# overwrite perl's warn
155	*CORE::GLOBAL::warn = sub {	578	*CORE::GLOBAL::warn = sub {
156	my $msg = join "", @_;	579	my $msg = join "", @_;
157	$msg .= "\n"	580	$msg .= "\n"
158	unless $msg =~ /\n$/;	581	unless $msg =~ /\n$/;
159	urxvt::warn ($msg);	582	urxvt::warn ($msg);
160	};	583	};
161	}	584	}
162		585
		586	no warnings 'utf8';
		587
		588	sub parse_resource {
		589	my ($term, $name, $isarg, $longopt, $flag, $value) = @_;
		590
		591	$term->scan_extensions;
		592
		593	my $r = $term->{meta}{resource};
		594	keys %$r; # reset iterator
		595	while (my ($k, $v) = each %$r) {
		596	my $pattern = $k;
		597	$pattern =~ y/./-/ if $isarg;
		598	my $prefix = $name;
		599	my $suffix;
		600	if ($pattern =~ /\-$/) {
		601	$prefix = substr $name, 0, length $pattern;
		602	$suffix = substr $name, length $pattern;
		603	}
		604	if ($pattern eq $prefix) {
		605	$name = "$urxvt::RESCLASS.$k$suffix";
		606
		607	push @{ $term->{perl_ext_3} }, $v->[0];
		608
		609	if ($v->[1] eq "boolean") {
		610	$term->put_option_db ($name, $flag ? "true" : "false");
		611	return 1;
		612	} else {
		613	$term->put_option_db ($name, $value);
		614	return 1 + 2;
		615	}
		616	}
		617	}
		618
		619	0
		620	}
		621
		622	sub usage {
		623	my ($term, $usage_type) = @_;
		624
		625	$term->scan_extensions;
		626
		627	my $r = $term->{meta}{resource};
		628
		629	for my $pattern (sort keys %$r) {
		630	my ($ext, $type, $desc) = @{ $r->{$pattern} };
		631
		632	$desc .= " (-pe $ext)";
		633
		634	if ($usage_type == 1) {
		635	$pattern =~ y/./-/;
		636	$pattern =~ s/-$/-.../g;
		637
		638	if ($type eq "boolean") {
		639	urxvt::log sprintf " -%-30s %s\n", "/+$pattern", $desc;
		640	} else {
		641	urxvt::log sprintf " -%-30s %s\n", "$pattern $type", $desc;
		642	}
		643	} else {
		644	$pattern =~ s/\.$/.*/g;
		645	urxvt::log sprintf " %-31s %s\n", "$pattern:", $type;
		646	}
		647	}
		648	}
		649
163	my $verbosity = $ENV{URXVT_PERL_VERBOSITY} || 10;	650	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
164		651
165	sub verbose {	652	sub verbose {
166	my ($level, $msg) = @_;	653	my ($level, $msg) = @_;
167	warn "$msg\n"; #d#	654	warn "$msg\n" if $level <= $verbosity;
168	}	655	}
169		656
170	my @invoke_cb;	657	my %extension_pkg;
		658
		659	# load a single script into its own package, once only
		660	sub extension_package($) {
		661	my ($path) = @_;
		662
		663	$extension_pkg{$path} ||= do {
		664	$path =~ /([^\/\\]+)$/;
		665	my $pkg = $1;
		666	$pkg =~ s/[^[:word:]]/_/g;
		667	$pkg = "urxvt::ext::$pkg";
		668
		669	verbose 3, "loading extension '$path' into package '$pkg'";
		670
		671	(${"$pkg\::_NAME"} = $path) =~ s/^.*[\\\/]//; # hackish
		672
		673	open my $fh, "<:raw", $path
		674	or die "$path: $!";
		675
		676	my $source =
		677	"package $pkg; use strict 'vars'; use utf8; no warnings 'utf8';\n"
		678	. "#line 1 \"$path\"\n{\n"
		679	. (do { local $/; <$fh> })
		680	. "\n};\n1";
		681
		682	eval $source
		683	or die "$path: $@";
		684
		685	$pkg
		686	}
		687	}
		688
		689	our $retval; # return value for urxvt
171		690
172	# called by the rxvt core	691	# called by the rxvt core
173	sub invoke {	692	sub invoke {
174	local $term = shift;	693	local $TERM = shift;
175	my $htype = shift;	694	my $htype = shift;
176		695
177	my $cb = $invoke_cb[$htype];	696	if ($htype == HOOK_INIT) {
		697	my @dirs = $TERM->perl_libdirs;
178		698
179	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $term, @_) . ")"	699	$TERM->scan_extensions;
180	if $verbosity >= 10;
181		700
182	while (my ($k, $v) = each %$cb) {	701	my %ext_arg;
183	return 1 if $v->($term, @_);	702
		703	{
		704	my @init = @TERM_INIT;
		705	@TERM_INIT = ();
		706	$_->($TERM) for @init;
		707	my @pkg = @TERM_EXT;
		708	@TERM_EXT = ();
		709	$TERM->register_package ($_) for @pkg;
		710	}
		711
		712	for (
		713	(grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2),
		714	@{ delete $TERM->{perl_ext_3} }
		715	) {
		716	if ($_ eq "default") {
		717
		718	$ext_arg{$_} = []
		719	for qw(selection option-popup selection-popup readline searchable-scrollback);
		720
		721	for ($TERM->_keysym_resources) {
		722	next if /^(?:string|command|builtin|builtin-string|perl)/;
		723	next unless /^([A-Za-z0-9_\-]+):/;
		724
		725	my $ext = $1;
		726
		727	$ext_arg{$ext} = [];
		728	}
		729
		730	} elsif (/^-(.*)$/) {
		731	delete $ext_arg{$1};
		732
		733	} elsif (/^([^<]+)<(.*)>$/) {
		734	push @{ $ext_arg{$1} }, $2;
		735
		736	} else {
		737	$ext_arg{$_} ||= [];
		738	}
		739	}
		740
		741	for my $ext (sort keys %ext_arg) {
		742	my @files = grep -f $_, map "$_/$ext", @dirs;
		743
		744	if (@files) {
		745	$TERM->register_package (extension_package $files[0], $ext_arg{$ext});
		746	} else {
		747	warn "perl extension '$ext' not found in perl library search path\n";
		748	}
		749	}
		750
		751	eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval");
		752	warn $@ if $@;
184	}	753	}
185		754
		755	$retval = undef;
		756
		757	if (my $cb = $TERM->{_hook}[$htype]) {
		758	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
		759	if $verbosity >= 10;
		760
		761	if ($htype == HOOK_ACTION) {
		762	# this hook is only sent to the extension with the name
		763	# matching the first arg
		764	my $pkg = shift;
		765	$pkg =~ y/-/_/;
		766	$pkg = "urxvt::ext::$pkg";
		767
		768	$cb = $cb->{$pkg}
		769	or return undef; #TODO: maybe warn user?
		770
		771	$cb = { $pkg => $cb };
		772	}
		773
		774	for my $pkg (keys %$cb) {
		775	my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg} || $TERM, @_) };
		776	$retval ||= $retval_;
		777
		778	if ($@) {
		779	$TERM->ungrab; # better to lose the grab than the session
		780	warn $@;
		781	}
		782	}
		783
		784	verbose 11, "$HOOKNAME[$htype] returning <$retval>"
		785	if $verbosity >= 11;
186	0	786	}
		787
		788	if ($htype == HOOK_DESTROY) {
		789	# clear package objects
		790	%$_ = () for values %{ $TERM->{_pkg} };
		791
		792	# clear package
		793	%$TERM = ();
		794	}
		795
		796	$retval
187	}	797	}
		798
		799	sub SET_COLOR($$$) {
		800	SET_BGCOLOR (SET_FGCOLOR ($_[0], $_[1]), $_[2])
		801	}
		802
		803	sub rend2mask {
		804	no strict 'refs';
		805	my ($str, $mask) = (@_, 0);
		806	my %color = ( fg => undef, bg => undef );
		807	my @failed;
		808	for my $spec ( split /\s+/, $str ) {
		809	if ( $spec =~ /^([fb]g)[_:-]?(\d+)/i ) {
		810	$color{lc($1)} = $2;
		811	} else {
		812	my $neg = $spec =~ s/^[-^]//;
		813	unless ( exists &{"RS_$spec"} ) {
		814	push @failed, $spec;
		815	next;
		816	}
		817	my $cur = &{"RS_$spec"};
		818	if ( $neg ) {
		819	$mask &= ~$cur;
		820	} else {
		821	$mask |= $cur;
		822	}
		823	}
		824	}
		825	($mask, @color{qw(fg bg)}, \@failed)
		826	}
		827
		828	package urxvt::term::extension;
		829
		830	=head2 The C<urxvt::term::extension> class
		831
		832	Each extension attached to a terminal object is represented by
		833	a C<urxvt::term::extension> object.
		834
		835	You can use these objects, which are passed to all callbacks to store any
		836	state related to the terminal and extension instance.
		837
		838	The methods (And data members) documented below can be called on extension
		839	objects, in addition to call methods documented for the <urxvt::term>
		840	class.
		841
		842	=over 4
		843
		844	=item $urxvt_term = $self->{term}
		845
		846	Returns the C<urxvt::term> object associated with this instance of the
		847	extension. This member I<must not> be changed in any way.
		848
		849	=cut
		850
		851	our $AUTOLOAD;
		852
		853	sub AUTOLOAD {
		854	$AUTOLOAD =~ /:([^:]+)$/
		855	or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
		856
		857	eval qq{
		858	sub $AUTOLOAD {
		859	my \$proxy = shift;
		860	\$proxy->{term}->$1 (\@_)
		861	}
		862	1
		863	} or die "FATAL: unable to compile method forwarder: $@";
		864
		865	goto &$AUTOLOAD;
		866	}
		867
		868	sub DESTROY {
		869	# nop
		870	}
		871
		872	# urxvt::destroy_hook (basically a cheap Guard:: implementation)
		873
		874	sub urxvt::destroy_hook::DESTROY {
		875	${$_[0]}->();
		876	}
		877
		878	sub urxvt::destroy_hook(&) {
		879	bless \shift, urxvt::destroy_hook::
		880	}
		881
		882	=item $self->enable ($hook_name => $cb[, $hook_name => $cb..])
		883
		884	Dynamically enable the given hooks (named without the C<on_> prefix) for
		885	this extension, replacing any hook previously installed via C<enable> in
		886	this extension.
		887
		888	This is useful when you want to overwrite time-critical hooks only
		889	temporarily.
		890
		891	To install additional callbacks for the same hook, you can use the C<on>
		892	method of the C<urxvt::term> class.
		893
		894	=item $self->disable ($hook_name[, $hook_name..])
		895
		896	Dynamically disable the given hooks.
		897
		898	=cut
		899
		900	sub enable {
		901	my ($self, %hook) = @_;
		902	my $pkg = $self->{_pkg};
		903
		904	while (my ($name, $cb) = each %hook) {
		905	my $htype = $HOOKTYPE{uc $name};
		906	defined $htype
		907	or Carp::croak "unsupported hook type '$name'";
		908
		909	$self->set_should_invoke ($htype, +1)
		910	unless exists $self->{term}{_hook}[$htype]{$pkg};
		911
		912	$self->{term}{_hook}[$htype]{$pkg} = $cb;
		913	}
		914	}
		915
		916	sub disable {
		917	my ($self, @hook) = @_;
		918	my $pkg = $self->{_pkg};
		919
		920	for my $name (@hook) {
		921	my $htype = $HOOKTYPE{uc $name};
		922	defined $htype
		923	or Carp::croak "unsupported hook type '$name'";
		924
		925	$self->set_should_invoke ($htype, -1)
		926	if delete $self->{term}{_hook}[$htype]{$pkg};
		927	}
		928	}
		929
		930	=item $guard = $self->on ($hook_name => $cb[, $hook_name => $cb..])
		931
		932	Similar to the C<enable> enable, but installs additional callbacks for
		933	the given hook(s) (that is, it doesn't replace existing callbacks), and
		934	returns a guard object. When the guard object is destroyed the callbacks
		935	are disabled again.
		936
		937	=cut
		938
		939	sub urxvt::extension::on_disable::DESTROY {
		940	my $disable = shift;
		941
		942	my $term = delete $disable->{""};
		943
		944	while (my ($htype, $id) = each %$disable) {
		945	delete $term->{_hook}[$htype]{$id};
		946	$term->set_should_invoke ($htype, -1);
		947	}
		948	}
		949
		950	sub on {
		951	my ($self, %hook) = @_;
		952
		953	my $term = $self->{term};
		954
		955	my %disable = ( "" => $term );
		956
		957	while (my ($name, $cb) = each %hook) {
		958	my $htype = $HOOKTYPE{uc $name};
		959	defined $htype
		960	or Carp::croak "unsupported hook type '$name'";
		961
		962	$term->set_should_invoke ($htype, +1);
		963	$term->{_hook}[$htype]{ $disable{$htype} = $cb+0 }
		964	= sub { shift; $cb->($self, @_) }; # very ugly indeed
		965	}
		966
		967	bless \%disable, "urxvt::extension::on_disable"
		968	}
		969
		970	=item $self->bind_action ($hotkey, $action)
		971
		972	=item $self->x_resource ($pattern)
		973
		974	=item $self->x_resource_boolean ($pattern)
		975
		976	These methods support an additional C<%> prefix for C<$action> or
		977	C<$pattern> when called on an extension object, compared to the
		978	C<urxvt::term> methods of the same name - see the description of these
		979	methods in the C<urxvt::term> class for details.
		980
		981	=cut
		982
		983	sub bind_action {
		984	my ($self, $hotkey, $action) = @_;
		985	$action =~ s/^%:/$_[0]{_name}:/;
		986	$self->{term}->bind_action ($hotkey, $action)
		987	}
		988
		989	sub x_resource {
		990	my ($self, $name) = @_;
		991	$name =~ s/^%(\.|$)/$_[0]{_name}$1/;
		992	$self->{term}->x_resource ($name)
		993	}
		994
		995	sub x_resource_boolean {
		996	my ($self, $name) = @_;
		997	$name =~ s/^%(\.|$)/$_[0]{_name}$1/;
		998	$self->{term}->x_resource_boolean ($name)
		999	}
		1000
		1001	=back
		1002
		1003	=cut
		1004
		1005	package urxvt::anyevent;
		1006
		1007	=head2 The C<urxvt::anyevent> Class
		1008
		1009	The sole purpose of this class is to deliver an interface to the
		1010	C<AnyEvent> module - any module using it will work inside urxvt without
		1011	further programming. The only exception is that you cannot wait on
		1012	condition variables, but non-blocking condvar use is ok.
		1013
		1014	In practical terms this means is that you cannot use blocking APIs, but
		1015	the non-blocking variant should work.
		1016
		1017	=cut
		1018
		1019	our $VERSION = '5.23';
		1020
		1021	$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
		1022	push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
		1023
		1024	sub timer {
		1025	my ($class, %arg) = @_;
		1026
		1027	my $cb = $arg{cb};
		1028
		1029	urxvt::timer
		1030	->new
		1031	->after ($arg{after}, $arg{interval})
		1032	->cb ($arg{interval} ? $cb : sub {
		1033	$_[0]->stop; # need to cancel manually
		1034	$cb->();
		1035	})
		1036	}
		1037
		1038	sub io {
		1039	my ($class, %arg) = @_;
		1040
		1041	my $cb = $arg{cb};
		1042	my $fd = fileno $arg{fh};
		1043	defined $fd or $fd = $arg{fh};
		1044
		1045	bless [$arg{fh}, urxvt::iow
		1046	->new
		1047	->fd ($fd)
		1048	->events (($arg{poll} =~ /r/ ? 1 : 0)
		1049	| ($arg{poll} =~ /w/ ? 2 : 0))
		1050	->start
		1051	->cb ($cb)
		1052	], urxvt::anyevent::
		1053	}
		1054
		1055	sub idle {
		1056	my ($class, %arg) = @_;
		1057
		1058	my $cb = $arg{cb};
		1059
		1060	urxvt::iw
		1061	->new
		1062	->start
		1063	->cb ($cb)
		1064	}
		1065
		1066	sub child {
		1067	my ($class, %arg) = @_;
		1068
		1069	my $cb = $arg{cb};
		1070
		1071	urxvt::pw
		1072	->new
		1073	->start ($arg{pid})
		1074	->cb (sub {
		1075	$_[0]->stop; # need to cancel manually
		1076	$cb->($_[0]->rpid, $_[0]->rstatus);
		1077	})
		1078	}
		1079
		1080	sub DESTROY {
		1081	$_[0][1]->stop;
		1082	}
		1083
		1084	# only needed for AnyEvent < 6 compatibility
		1085	sub one_event {
		1086	Carp::croak "AnyEvent->one_event blocking wait unsupported in urxvt, use a non-blocking API";
		1087	}
		1088
		1089	package urxvt::term;
		1090
		1091	=head2 The C<urxvt::term> Class
		1092
		1093	=over 4
		1094
		1095	=cut
188		1096
189	# find on_xxx subs in the package and register them	1097	# find on_xxx subs in the package and register them
190	# as hooks	1098	# as hooks
191	sub register_package($) {	1099	sub register_package {
192	my ($pkg) = @_;	1100	my ($self, $pkg, $argv) = @_;
193		1101
		1102	no strict 'refs';
		1103
		1104	urxvt::verbose 6, "register package $pkg to $self";
		1105
		1106	@{"$pkg\::ISA"} = urxvt::term::extension::;
		1107
		1108	my $proxy = bless {
		1109	_pkg => $pkg,
		1110	_name => ${"$pkg\::_NAME"}, # hackish
		1111	argv => $argv,
		1112	}, $pkg;
		1113	Scalar::Util::weaken ($proxy->{term} = $self);
		1114
		1115	$self->{_pkg}{$pkg} = $proxy;
		1116
194	for my $hook (0.. $#HOOKNAME) {	1117	for my $name (@HOOKNAME) {
195	my $name = $HOOKNAME[$hook];
196
197	my $ref = $pkg->can ("on_" . lc $name)	1118	if (my $ref = $pkg->can ("on_" . lc $name)) {
198	or next;	1119	$proxy->enable ($name => $ref);
199		1120	}
200	$invoke_cb[$hook]{$ref*1} = $ref;
201	set_should_invoke $hook, 1;
202	}	1121	}
203	}	1122	}
204		1123
205	my $script_pkg = "script0000";	1124	sub perl_libdirs {
206	my %script_pkg;	1125	map { split /:/ }
		1126	$_[0]->resource ("perl_lib"),
		1127	$ENV{URXVT_PERL_LIB},
		1128	"$ENV{HOME}/.urxvt/ext",
		1129	"$LIBDIR/perl"
		1130	}
207		1131
208	# load a single script into its own package, once only	1132	# scan for available extensions and collect their metadata
209	sub load_script($) {	1133	sub scan_extensions {
210	my ($path) = @_;	1134	my ($self) = @_;
211		1135
212	$script_pkg{$path} ||= do {	1136	return if exists $self->{meta};
213	my $pkg = $script_pkg++;
214	verbose 3, "loading script '$path' into package '$pkg'";
215		1137
216	open my $fh, "<:raw", $path	1138	my @urxvtdirs = perl_libdirs $self;
217	or die "$path: $!";	1139	my @cpandirs = grep -d, map "$_/URxvt/Ext", @INC;
218		1140
219	eval "package $pkg; use strict; use utf8;\n"	1141	$self->{meta} = \my %meta;
220	. "#line 1 \"$path\"\n"
221	. do { local $/; <$fh> }
222	or die "$path: $@";
223		1142
224	register_package $pkg;	1143	# first gather extensions
225		1144
226	$pkg	1145	my $gather = sub {
		1146	my ($dir, $core) = @_;
		1147
		1148	opendir my $fh, $dir
		1149	or return;
		1150
		1151	for my $ext (readdir $fh) {
		1152	$ext !~ /^\./
		1153	or next;
		1154
		1155	open my $fh, "<", "$dir/$ext"
		1156	or next;
		1157
		1158	-f $fh
		1159	or next;
		1160
		1161	$ext =~ s/\.uext$// or $core
		1162	or next;
		1163
		1164	my %ext = (dir => $dir);
		1165
		1166	while (<$fh>) {
		1167	if (/^#:META:(?:X_)?RESOURCE:(.*)/) {
		1168	my ($pattern, $type, $desc) = split /:/, $1;
		1169	$pattern =~ s/^%(\.|$)/$ext$1/g; # % in pattern == extension name
		1170	if ($pattern =~ /[^a-zA-Z0-9\-\.]/) {
		1171	warn "$dir/$ext: meta resource '$pattern' contains illegal characters (not alphanumeric nor . nor *)\n";
		1172	} else {
		1173	$ext{resource}{$pattern} = [$ext, $type, $desc];
		1174	}
		1175	} elsif (/^\s*(?:#|$)/) {
		1176	# skip other comments and empty lines
		1177	} else {
		1178	last; # stop parsing on first non-empty non-comment line
		1179	}
		1180	}
		1181
		1182	$meta{ext}{$ext} = \%ext;
		1183	}
227	};	1184	};
228	}
229		1185
230	load_script $_ for grep -f $_, <$LIBDIR/perl-ext/*>;	1186	$gather->($_, 0) for @cpandirs;
		1187	$gather->($_, 1) for @urxvtdirs;
231		1188
232	=back	1189	# and now merge resources
		1190	while (my ($k, $v) = each %{ $meta{ext} }) {
		1191	#TODO: should check for extensions overriding each other
		1192	%{ $meta{resource} } = (%{ $meta{resource} }, %{ $v->{resource} });
		1193	}
		1194	}
233		1195
234	=head2 The C<urxvt::term> Class	1196	=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
235		1197
236	=over 4	1198	Creates a new terminal, very similar as if you had started it with system
		1199	C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
		1200	hash which defines the environment of the new terminal.
		1201
		1202	Croaks (and probably outputs an error message) if the new instance
		1203	couldn't be created. Returns C<undef> if the new instance didn't
		1204	initialise perl, and the terminal object otherwise. The C<init> and
		1205	C<start> hooks will be called before this call returns, and are free to
		1206	refer to global data (which is race free).
		1207
		1208	=cut
		1209
		1210	sub new {
		1211	my ($class, $env, @args) = @_;
		1212
		1213	$env or Carp::croak "environment hash missing in call to urxvt::term->new";
		1214	@args or Carp::croak "name argument missing in call to urxvt::term->new";
		1215
		1216	_new ([ map "$_=$env->{$_}", keys %$env ], \@args);
		1217	}
		1218
		1219	=item $term->destroy
		1220
		1221	Destroy the terminal object (close the window, free resources
		1222	etc.). Please note that urxvt will not exit as long as any event
		1223	watchers (timers, io watchers) are still active.
		1224
		1225	=item $term->exec_async ($cmd[, @args])
		1226
		1227	Works like the combination of the C<fork>/C<exec> builtins, which executes
		1228	("starts") programs in the background. This function takes care of setting
		1229	the user environment before exec'ing the command (e.g. C<PATH>) and should
		1230	be preferred over explicit calls to C<exec> or C<system>.
		1231
		1232	Returns the pid of the subprocess or C<undef> on error.
		1233
		1234	=cut
		1235
		1236	sub exec_async {
		1237	my $self = shift;
		1238
		1239	my $pid = fork;
		1240
		1241	return $pid
		1242	if !defined $pid or $pid;
		1243
		1244	%ENV = %{ $self->env };
		1245
		1246	exec @_;
		1247	urxvt::_exit 255;
		1248	}
		1249
		1250	=item $isset = $term->option ($optval[, $set])
		1251
		1252	Returns true if the option specified by C<$optval> is enabled, and
		1253	optionally change it. All option values are stored by name in the hash
		1254	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
		1255
		1256	Here is a likely non-exhaustive list of option names, please see the
		1257	source file F</src/optinc.h> to see the actual list:
		1258
		1259	borderLess buffered console cursorBlink cursorUnderline hold iconic
		1260	insecure intensityStyles iso14755 iso14755_52 jumpScroll loginShell
		1261	mapAlert meta8 mouseWheelScrollPage override_redirect pastableTabs
		1262	pointerBlank reverseVideo scrollBar scrollBar_floating scrollBar_right
		1263	scrollTtyKeypress scrollTtyOutput scrollWithBuffer secondaryScreen
		1264	secondaryScroll skipBuiltinGlyphs skipScroll transparent tripleclickwords
		1265	urgentOnBell utmpInhibit visualBell
237		1266
238	=item $value = $term->resource ($name[, $newval])	1267	=item $value = $term->resource ($name[, $newval])
239		1268
240	Returns the current resource value associated with a given name and	1269	Returns the current resource value associated with a given name and
241	optionally sets a new value. Setting values is most useful in the C<init>	1270	optionally sets a new value. Setting values is most useful in the C<init>
…		…
250	likely change).	1279	likely change).
251		1280
252	Please note that resource strings will currently only be freed when the	1281	Please note that resource strings will currently only be freed when the
253	terminal is destroyed, so changing options frequently will eat memory.	1282	terminal is destroyed, so changing options frequently will eat memory.
254		1283
255	Here is a a likely non-exhaustive list of resource names, not all of which	1284	Here is a likely non-exhaustive list of resource names, not all of which
256	are supported in every build, please see the source to see the actual	1285	are supported in every build, please see the source file F</src/rsinc.h>
257	list:	1286	to see the actual list:
258		1287
259	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont	1288	answerbackstring backgroundPixmap backspace_key blurradius
260	borderLess color cursorBlink cursorUnderline cutchars delete_key	1289	boldFont boldItalicFont borderLess buffered chdir color cursorBlink
261	display_name embed ext_bwidth fade font geometry hold iconName	1290	cursorUnderline cutchars delete_key depth display_name embed ext_bwidth
262	imFont imLocale inputMethod insecure int_bwidth intensityStyles	1291	fade font geometry hold iconName iconfile imFont imLocale inputMethod
263	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8	1292	insecure int_bwidth intensityStyles iso14755 iso14755_52 italicFont
264	modifier mouseWheelScrollPage name pastableTabs path pointerBlank	1293	jumpScroll letterSpace lineSpace loginShell mapAlert meta8 modifier
		1294	mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
		1295	perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
265	pointerBlankDelay preeditType print_pipe pty_fd reverseVideo saveLines	1296	preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
266	scrollBar scrollBar_align scrollBar_floating scrollBar_right	1297	scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
267	scrollBar_thickness scrollTtyKeypress scrollTtyOutput scrollWithBuffer	1298	scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
268	scrollstyle secondaryScreen secondaryScroll selectstyle shade term_name	1299	secondaryScreen secondaryScroll shade skipBuiltinGlyphs skipScroll
269	title transparent transparent_all tripleclickwords utmpInhibit	1300	term_name title transient_for transparent tripleclickwords urgentOnBell
270	visualBell	1301	utmpInhibit visualBell
271		1302
272	=cut	1303	=cut
273		1304
274	sub urxvt::term::resource($$;$) {	1305	sub resource($$;$) {
275	my ($self, $name) = (shift, shift);	1306	my ($self, $name) = (shift, shift);
276	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);	1307	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
277	goto &urxvt::term::_resource;	1308	goto &urxvt::term::_resource
278	}	1309	}
		1310
		1311	=item $value = $term->x_resource ($pattern)
		1312
		1313	Returns the X-Resource for the given pattern, excluding the program or
		1314	class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
		1315	same value as used by this instance of rxvt-unicode. Returns C<undef> if no
		1316	resource with that pattern exists.
		1317
		1318	Extensions that define extra resources also need to call this method
		1319	to access their values.
		1320
		1321	If the method is called on an extension object (basically, from an
		1322	extension), then the special prefix C<%.> will be replaced by the name of
		1323	the extension and a dot, and the lone string C<%> will be replaced by the
		1324	extension name itself. This makes it possible to code extensions so you
		1325	can rename them and get a new set of resources without having to change
		1326	the actual code.
		1327
		1328	This method should only be called during the C<on_start> hook, as there is
		1329	only one resource database per display, and later invocations might return
		1330	the wrong resources.
		1331
		1332	=item $value = $term->x_resource_boolean ($pattern)
		1333
		1334	Like C<x_resource>, above, but interprets the string value as a boolean
		1335	and returns C<1> for true values, C<0> for false values and C<undef> if
		1336	the resource or option isn't specified.
		1337
		1338	You should always use this method to parse boolean resources.
		1339
		1340	=cut
		1341
		1342	sub x_resource_boolean {
		1343	my $res = &x_resource;
		1344
		1345	$res =~ /^\s*(?:true|yes|on|1)\s*$/i ? 1 : defined $res && 0
		1346	}
		1347
		1348	=item $success = $term->bind_action ($key, $action)
		1349
		1350	Adds a key binding exactly as specified via a C<keysym> resource. See the
		1351	C<keysym> resource in the urxvt(1) manpage.
		1352
		1353	To add default bindings for actions, an extension should call C<<
		1354	->bind_action >> in its C<init> hook for every such binding. Doing it
		1355	in the C<init> hook allows users to override or remove the binding
		1356	again.
		1357
		1358	Example: the C<searchable-scrollback> by default binds itself
		1359	on C<Meta-s>, using C<< $self->bind_action >>, which calls C<<
		1360	$term->bind_action >>.
		1361
		1362	sub init {
		1363	my ($self) = @_;
		1364
		1365	$self->bind_action ("M-s" => "%:start");
		1366	}
		1367
		1368	=item $rend = $term->rstyle ([$new_rstyle])
		1369
		1370	Return and optionally change the current rendition. Text that is output by
		1371	the terminal application will use this style.
		1372
		1373	=item ($row, $col) = $term->screen_cur ([$row, $col])
		1374
		1375	Return the current coordinates of the text cursor position and optionally
		1376	set it (which is usually bad as applications don't expect that).
279		1377
280	=item ($row, $col) = $term->selection_mark ([$row, $col])	1378	=item ($row, $col) = $term->selection_mark ([$row, $col])
281		1379
282	=item ($row, $col) = $term->selection_beg ([$row, $col])	1380	=item ($row, $col) = $term->selection_beg ([$row, $col])
283		1381
284	=item ($row, $col) = $term->selection_end ([$row, $col])	1382	=item ($row, $col) = $term->selection_end ([$row, $col])
285		1383
286	Return the current values of the selection mark, begin or end positions,	1384	Return the current values of the selection mark, begin or end positions.
287	and optionally set them to new values.
288		1385
		1386	When arguments are given, then the selection coordinates are set to
		1387	C<$row> and C<$col>, and the selection screen is set to the current
		1388	screen.
		1389
		1390	=item $screen = $term->selection_screen ([$screen])
		1391
		1392	Returns the current selection screen, and then optionally sets it.
		1393
		1394	=item $term->selection_make ($eventtime[, $rectangular])
		1395
		1396	Tries to make a selection as set by C<selection_beg> and
		1397	C<selection_end>. If C<$rectangular> is true (default: false), a
		1398	rectangular selection will be made. This is the preferred function to make
		1399	a selection.
		1400
289	=item $success = $term->selection_grab ($eventtime)	1401	=item $success = $term->selection_grab ($eventtime[, $clipboard])
290		1402
291	Try to request the primary selection from the server (for example, as set	1403	Try to acquire ownership of the primary (clipboard if C<$clipboard> is
292	by the next method).	1404	true) selection from the server. The corresponding text can be set
		1405	with the next method. No visual feedback will be given. This function
		1406	is mostly useful from within C<on_sel_grab> hooks.
293		1407
294	=item $oldtext = $term->selection ([$newtext])	1408	=item $oldtext = $term->selection ([$newtext, $clipboard])
295		1409
296	Return the current selection text and optionally replace it by C<$newtext>.	1410	Return the current selection (clipboard if C<$clipboard> is true) text
		1411	and optionally replace it by C<$newtext>.
297		1412
		1413	=item $term->selection_clear ([$clipboard])
		1414
		1415	Revoke ownership of the primary (clipboard if C<$clipboard> is true) selection.
		1416
298	=item $term->scr_overlay ($x, $y, $text)	1417	=item $term->overlay_simple ($x, $y, $text)
299		1418
300	Create a simple multi-line overlay box. See the next method for details.	1419	Create a simple multi-line overlay box. See the next method for details.
301		1420
302	=cut	1421	=cut
303		1422
304	sub urxvt::term::scr_overlay {	1423	sub overlay_simple {
305	my ($self, $x, $y, $text) = @_;	1424	my ($self, $x, $y, $text) = @_;
306		1425
307	my @lines = split /\n/, $text;	1426	my @lines = split /\n/, $text;
308		1427
309	my $w = 0;	1428	my $w = List::Util::max map $self->strwidth ($_), @lines;
310	for (map urxvt::wcswidth $_, @lines) {	1429
311	$w = $_ if $w < $_;	1430	my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
		1431	$overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
		1432
		1433	$overlay
		1434	}
		1435
		1436	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
		1437
		1438	Create a new (empty) overlay at the given position with the given
		1439	width/height. C<$rstyle> defines the initial rendition style
		1440	(default: C<OVERLAY_RSTYLE>).
		1441
		1442	If C<$border> is C<2> (default), then a decorative border will be put
		1443	around the box.
		1444
		1445	If either C<$x> or C<$y> is negative, then this is counted from the
		1446	right/bottom side, respectively.
		1447
		1448	This method returns an urxvt::overlay object. The overlay will be visible
		1449	as long as the perl object is referenced.
		1450
		1451	The methods currently supported on C<urxvt::overlay> objects are:
		1452
		1453	=over 4
		1454
		1455	=item $overlay->set ($x, $y, $text[, $rend])
		1456
		1457	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts
		1458	text in rxvt-unicode's special encoding and an array of rendition values
		1459	at a specific position inside the overlay.
		1460
		1461	If C<$rend> is missing, then the rendition will not be changed.
		1462
		1463	=item $overlay->hide
		1464
		1465	If visible, hide the overlay, but do not destroy it.
		1466
		1467	=item $overlay->show
		1468
		1469	If hidden, display the overlay again.
		1470
		1471	=back
		1472
		1473	=item $popup = $term->popup ($event)
		1474
		1475	Creates a new C<urxvt::popup> object that implements a popup menu. The
		1476	C<$event> I<must> be the event causing the menu to pop up (a button event,
		1477	currently).
		1478
		1479	=cut
		1480
		1481	sub popup {
		1482	my ($self, $event) = @_;
		1483
		1484	$self->grab ($event->{time}, 1)
		1485	or return;
		1486
		1487	my $popup = bless {
		1488	term => $self,
		1489	event => $event,
		1490	}, urxvt::popup::;
		1491
		1492	Scalar::Util::weaken $popup->{term};
		1493
		1494	$self->{_destroy}{$popup} = urxvt::destroy_hook { $popup->{popup}->destroy };
		1495	Scalar::Util::weaken $self->{_destroy}{$popup};
		1496
		1497	$popup
		1498	}
		1499
		1500	=item $cellwidth = $term->strwidth ($string)
		1501
		1502	Returns the number of screen-cells this string would need. Correctly
		1503	accounts for wide and combining characters.
		1504
		1505	=item $octets = $term->locale_encode ($string)
		1506
		1507	Convert the given text string into the corresponding locale encoding.
		1508
		1509	=item $string = $term->locale_decode ($octets)
		1510
		1511	Convert the given locale-encoded octets into a perl string.
		1512
		1513	=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
		1514
		1515	XORs the rendition values in the given span with the provided value
		1516	(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
		1517	refresh hooks to provide effects similar to the selection.
		1518
		1519	=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
		1520
		1521	Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
		1522	whitespace will additionally be xored with the C<$rstyle2>, which defaults
		1523	to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
		1524	it instead. Both styles I<MUST NOT> contain font styles.
		1525
		1526	=item $term->scr_bell
		1527
		1528	Ring the bell!
		1529
		1530	=item $term->scr_add_lines ($string)
		1531
		1532	Write the given text string to the screen, as if output by the application
		1533	running inside the terminal. It may not contain command sequences (escape
		1534	codes - see C<cmd_parse> for that), but is free to use line feeds,
		1535	carriage returns and tabs. The string is a normal text string, not in
		1536	locale-dependent encoding.
		1537
		1538	Normally its not a good idea to use this function, as programs might be
		1539	confused by changes in cursor position or scrolling. Its useful inside a
		1540	C<on_add_lines> hook, though.
		1541
		1542	=item $term->scr_change_screen ($screen)
		1543
		1544	Switch to given screen - 0 primary, 1 secondary.
		1545
		1546	=item $term->cmd_parse ($octets)
		1547
		1548	Similar to C<scr_add_lines>, but the argument must be in the
		1549	locale-specific encoding of the terminal and can contain command sequences
		1550	(escape codes) that will be interpreted.
		1551
		1552	=item $term->tt_write ($octets)
		1553
		1554	Write the octets given in C<$octets> to the tty (i.e. as user input
		1555	to the program, see C<cmd_parse> for the opposite direction). To pass
		1556	characters instead of octets, you should convert your strings first to the
		1557	locale-specific encoding using C<< $term->locale_encode >>.
		1558
		1559	=item $term->tt_write_user_input ($octets)
		1560
		1561	Like C<tt_write>, but should be used when writing strings in response to
		1562	the user pressing a key, to invoke the additional actions requested by
		1563	the user for that case (C<tt_write> doesn't do that).
		1564
		1565	The typical use case would be inside C<on_action> hooks.
		1566
		1567	=item $term->tt_paste ($octets)
		1568
		1569	Write the octets given in C<$octets> to the tty as a paste, converting NL to
		1570	CR and bracketing the data with control sequences if bracketed paste mode
		1571	is set.
		1572
		1573	=item $old_events = $term->pty_ev_events ([$new_events])
		1574
		1575	Replaces the event mask of the pty watcher by the given event mask. Can
		1576	be used to suppress input and output handling to the pty/tty. See the
		1577	description of C<< urxvt::timer->events >>. Make sure to always restore
		1578	the previous value.
		1579
		1580	=item $fd = $term->pty_fd
		1581
		1582	Returns the master file descriptor for the pty in use, or C<-1> if no pty
		1583	is used.
		1584
		1585	=item $windowid = $term->parent
		1586
		1587	Return the window id of the toplevel window.
		1588
		1589	=item $windowid = $term->vt
		1590
		1591	Return the window id of the terminal window.
		1592
		1593	=item $term->vt_emask_add ($x_event_mask)
		1594
		1595	Adds the specified events to the vt event mask. Useful e.g. when you want
		1596	to receive pointer events all the times:
		1597
		1598	$term->vt_emask_add (urxvt::PointerMotionMask);
		1599
		1600	=item $term->set_urgency ($set)
		1601
		1602	Enable/disable the urgency hint on the toplevel window.
		1603
		1604	=item $term->focus_in
		1605
		1606	=item $term->focus_out
		1607
		1608	=item $term->key_press ($state, $keycode[, $time])
		1609
		1610	=item $term->key_release ($state, $keycode[, $time])
		1611
		1612	Deliver various fake events to to terminal.
		1613
		1614	=item $window_width = $term->width
		1615
		1616	=item $window_height = $term->height
		1617
		1618	=item $font_width = $term->fwidth
		1619
		1620	=item $font_height = $term->fheight
		1621
		1622	=item $font_ascent = $term->fbase
		1623
		1624	=item $terminal_rows = $term->nrow
		1625
		1626	=item $terminal_columns = $term->ncol
		1627
		1628	=item $has_focus = $term->focus
		1629
		1630	=item $is_mapped = $term->mapped
		1631
		1632	=item $max_scrollback = $term->saveLines
		1633
		1634	=item $nrow_plus_saveLines = $term->total_rows
		1635
		1636	=item $topmost_scrollback_row = $term->top_row
		1637
		1638	Return various integers describing terminal characteristics.
		1639
		1640	=item $x_display = $term->display_id
		1641
		1642	Return the DISPLAY used by rxvt-unicode.
		1643
		1644	=item $lc_ctype = $term->locale
		1645
		1646	Returns the LC_CTYPE category string used by this rxvt-unicode.
		1647
		1648	=item $env = $term->env
		1649
		1650	Returns a copy of the environment in effect for the terminal as a hashref
		1651	similar to C<\%ENV>.
		1652
		1653	=item @envv = $term->envv
		1654
		1655	Returns the environment as array of strings of the form C<VAR=VALUE>.
		1656
		1657	=item @argv = $term->argv
		1658
		1659	Return the argument vector as this terminal, similar to @ARGV, but
		1660	includes the program name as first element.
		1661
		1662	=cut
		1663
		1664	sub env {
		1665	+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), $_[0]->envv }
		1666	}
		1667
		1668	=item $modifiermask = $term->ModLevel3Mask
		1669
		1670	=item $modifiermask = $term->ModMetaMask
		1671
		1672	=item $modifiermask = $term->ModNumLockMask
		1673
		1674	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
		1675	AltGr), the meta key (often Alt) and the num lock key, if applicable.
		1676
		1677	=item $screen = $term->current_screen
		1678
		1679	Returns the currently displayed screen (0 primary, 1 secondary).
		1680
		1681	=item $cursor_is_hidden = $term->hidden_cursor
		1682
		1683	Returns whether the cursor is currently hidden or not.
		1684
		1685	=item $view_start = $term->view_start ([$newvalue])
		1686
		1687	Returns the row number of the topmost displayed line. Maximum value is
		1688	C<0>, which displays the normal terminal contents. Lower values scroll
		1689	this many lines into the scrollback buffer.
		1690
		1691	=item $term->want_refresh
		1692
		1693	Requests a screen refresh. At the next opportunity, rxvt-unicode will
		1694	compare the on-screen display with its stored representation. If they
		1695	differ, it redraws the differences.
		1696
		1697	Used after changing terminal contents to display them.
		1698
		1699	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
		1700
		1701	Returns the text of the entire row with number C<$row_number>. Row C<< $term->top_row >>
		1702	is the topmost terminal line, row C<< $term->nrow-1 >> is the bottommost
		1703	terminal line. Nothing will be returned if a nonexistent line
		1704	is requested.
		1705
		1706	If C<$new_text> is specified, it will replace characters in the current
		1707	line, starting at column C<$start_col> (default C<0>), which is useful
		1708	to replace only parts of a line. The font index in the rendition will
		1709	automatically be updated.
		1710
		1711	C<$text> is in a special encoding: tabs and wide characters that use more
		1712	than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
		1713	characters. Characters with combining characters and other characters that
		1714	do not fit into the normal text encoding will be replaced with characters
		1715	in the private use area.
		1716
		1717	You have to obey this encoding when changing text. The advantage is
		1718	that C<substr> and similar functions work on screen cells and not on
		1719	characters.
		1720
		1721	The methods C<< $term->special_encode >> and C<< $term->special_decode >>
		1722	can be used to convert normal strings into this encoding and vice versa.
		1723
		1724	=item $rend = $term->ROW_r ($row_number[, $new_rend[, $start_col]])
		1725
		1726	Like C<< $term->ROW_t >>, but returns an arrayref with rendition
		1727	bitsets. Rendition bitsets contain information about colour, font, font
		1728	styles and similar information. See also C<< $term->ROW_t >>.
		1729
		1730	When setting rendition, the font mask will be ignored.
		1731
		1732	See the section on RENDITION, above.
		1733
		1734	=item $length = $term->ROW_l ($row_number[, $new_length])
		1735
		1736	Returns the number of screen cells that are in use ("the line
		1737	length"). Unlike the urxvt core, this returns C<< $term->ncol >> if the
		1738	line is joined with the following one.
		1739
		1740	=item $bool = $term->is_longer ($row_number)
		1741
		1742	Returns true if the row is part of a multiple-row logical "line" (i.e.
		1743	joined with the following row), which means all characters are in use
		1744	and it is continued on the next row (and possibly a continuation of the
		1745	previous row(s)).
		1746
		1747	=item $line = $term->line ($row_number)
		1748
		1749	Create and return a new C<urxvt::line> object that stores information
		1750	about the logical line that row C<$row_number> is part of. It supports the
		1751	following methods:
		1752
		1753	=over 4
		1754
		1755	=item $text = $line->t ([$new_text])
		1756
		1757	Returns or replaces the full text of the line, similar to C<ROW_t>
		1758
		1759	=item $rend = $line->r ([$new_rend])
		1760
		1761	Returns or replaces the full rendition array of the line, similar to C<ROW_r>
		1762
		1763	=item $length = $line->l
		1764
		1765	Returns the length of the line in cells, similar to C<ROW_l>.
		1766
		1767	=item $rownum = $line->beg
		1768
		1769	=item $rownum = $line->end
		1770
		1771	Return the row number of the first/last row of the line, respectively.
		1772
		1773	=item $offset = $line->offset_of ($row, $col)
		1774
		1775	Returns the character offset of the given row|col pair within the logical
		1776	line. Works for rows outside the line, too, and returns corresponding
		1777	offsets outside the string.
		1778
		1779	=item ($row, $col) = $line->coord_of ($offset)
		1780
		1781	Translates a string offset into terminal coordinates again.
		1782
		1783	=back
		1784
		1785	=cut
		1786
		1787	sub line {
		1788	my ($self, $row) = @_;
		1789
		1790	my $maxrow = $self->nrow - 1;
		1791
		1792	my ($beg, $end) = ($row, $row);
		1793
		1794	--$beg while $self->ROW_is_longer ($beg - 1);
		1795	++$end while $self->ROW_is_longer ($end) && $end < $maxrow;
		1796
		1797	bless {
		1798	term => $self,
		1799	beg => $beg,
		1800	end => $end,
		1801	ncol => $self->ncol,
		1802	len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),
		1803	}, urxvt::line::
		1804	}
		1805
		1806	sub urxvt::line::t {
		1807	my ($self) = @_;
		1808
		1809	if (@_ > 1) {
		1810	$self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
		1811	for $self->{beg} .. $self->{end};
312	}	1812	}
313		1813
314	$self->scr_overlay_new ($x, $y, $w, scalar @lines);	1814	defined wantarray &&
315	$self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;	1815	substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),
		1816	0, $self->{len}
316	}	1817	}
317		1818
318	=item $term->scr_overlay_new ($x, $y, $width, $height)	1819	sub urxvt::line::r {
		1820	my ($self) = @_;
319		1821
320	Create a new (empty) overlay at the given position with the given	1822	if (@_ > 1) {
321	width/height. A border will be put around the box. If either C<$x> or	1823	$self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
322	C<$y> is negative, then this is counted from the right/bottom side,	1824	for $self->{beg} .. $self->{end};
323	respectively.	1825	}
324		1826
325	=item $term->scr_overlay_off	1827	if (defined wantarray) {
		1828	my $rend = [
		1829	map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}
		1830	];
		1831	$#$rend = $self->{len} - 1;
		1832	return $rend;
		1833	}
326		1834
327	Switch the overlay off again.	1835	()
		1836	}
328		1837
329	=item $term->scr_overlay_set_char ($x, $y, $char, $rend = OVERLAY_RSTYLE)	1838	sub urxvt::line::beg { $_[0]{beg} }
		1839	sub urxvt::line::end { $_[0]{end} }
		1840	sub urxvt::line::l { $_[0]{len} }
330		1841
331	Put a single character (specified numerically) at the given overlay	1842	sub urxvt::line::offset_of {
332	position.	1843	my ($self, $row, $col) = @_;
333		1844
334	=item $term->scr_overlay_set ($x, $y, $text)	1845	($row - $self->{beg}) * $self->{ncol} + $col
		1846	}
335		1847
336	Write a string at the given position into the overlay.	1848	sub urxvt::line::coord_of {
		1849	my ($self, $offset) = @_;
		1850
		1851	use integer;
		1852
		1853	(
		1854	$offset / $self->{ncol} + $self->{beg},
		1855	$offset % $self->{ncol}
		1856	)
		1857	}
		1858
		1859	=item $text = $term->special_encode $string
		1860
		1861	Converts a perl string into the special encoding used by rxvt-unicode,
		1862	where one character corresponds to one screen cell. See
		1863	C<< $term->ROW_t >> for details.
		1864
		1865	=item $string = $term->special_decode $text
		1866
		1867	Converts rxvt-unicodes text representation into a perl string. See
		1868	C<< $term->ROW_t >> for details.
		1869
		1870	=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
		1871
		1872	=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
		1873
		1874	Register/unregister a synchronous button grab. See the XGrabButton
		1875	manpage.
		1876
		1877	=item $success = $term->grab ($eventtime[, $sync])
		1878
		1879	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
		1880	synchronous (C<$sync> is true). Also remembers the grab timestamp.
		1881
		1882	=item $term->allow_events_async
		1883
		1884	Calls XAllowEvents with AsyncBoth for the most recent grab.
		1885
		1886	=item $term->allow_events_sync
		1887
		1888	Calls XAllowEvents with SyncBoth for the most recent grab.
		1889
		1890	=item $term->allow_events_replay
		1891
		1892	Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
		1893	recent grab.
		1894
		1895	=item $term->ungrab
		1896
		1897	Calls XUngrabPointer and XUngrabKeyboard for the most recent grab. Is called automatically on
		1898	evaluation errors, as it is better to lose the grab in the error case as
		1899	the session.
		1900
		1901	=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
		1902
		1903	=item $atom_name = $term->XGetAtomName ($atom)
		1904
		1905	=item @atoms = $term->XListProperties ($window)
		1906
		1907	=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
		1908
		1909	=item $term->XChangeProperty ($window, $property, $type, $format, $octets)
		1910
		1911	=item $term->XDeleteProperty ($window, $property)
		1912
		1913	=item $window = $term->DefaultRootWindow
		1914
		1915	=item $term->XReparentWindow ($window, $parent, [$x, $y])
		1916
		1917	=item $term->XMapWindow ($window)
		1918
		1919	=item $term->XUnmapWindow ($window)
		1920
		1921	=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
		1922
		1923	=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
		1924
		1925	=item $term->XChangeInput ($window, $add_events[, $del_events])
		1926
		1927	=item $keysym = $term->XStringToKeysym ($string)
		1928
		1929	=item $string = $term->XKeysymToString ($keysym)
		1930
		1931	Various X or X-related functions. The C<$term> object only serves as
		1932	the source of the display, otherwise those functions map more-or-less
		1933	directly onto the X functions of the same name.
337		1934
338	=back	1935	=back
		1936
		1937	=cut
		1938
		1939	package urxvt::popup;
		1940
		1941	=head2 The C<urxvt::popup> Class
		1942
		1943	=over 4
		1944
		1945	=cut
		1946
		1947	sub add_item {
		1948	my ($self, $item) = @_;
		1949
		1950	$item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal};
		1951	$item->{rend}{hover} = "\x1b[0;30;46m" unless exists $item->{rend}{hover};
		1952	$item->{rend}{active} = "\x1b[m" unless exists $item->{rend}{active};
		1953
		1954	$item->{render} ||= sub { $_[0]{text} };
		1955
		1956	push @{ $self->{item} }, $item;
		1957	}
		1958
		1959	=item $popup->add_title ($title)
		1960
		1961	Adds a non-clickable title to the popup.
		1962
		1963	=cut
		1964
		1965	sub add_title {
		1966	my ($self, $title) = @_;
		1967
		1968	$self->add_item ({
		1969	rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
		1970	text => $title,
		1971	activate => sub { },
		1972	});
		1973	}
		1974
		1975	=item $popup->add_separator ([$sepchr])
		1976
		1977	Creates a separator, optionally using the character given as C<$sepchr>.
		1978
		1979	=cut
		1980
		1981	sub add_separator {
		1982	my ($self, $sep) = @_;
		1983
		1984	$sep ||= "=";
		1985
		1986	$self->add_item ({
		1987	rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
		1988	text => "",
		1989	render => sub { $sep x $self->{term}->ncol },
		1990	activate => sub { },
		1991	});
		1992	}
		1993
		1994	=item $popup->add_button ($text, $cb)
		1995
		1996	Adds a clickable button to the popup. C<$cb> is called whenever it is
		1997	selected.
		1998
		1999	=cut
		2000
		2001	sub add_button {
		2002	my ($self, $text, $cb) = @_;
		2003
		2004	$self->add_item ({ type => "button", text => $text, activate => $cb});
		2005	}
		2006
		2007	=item $popup->add_toggle ($text, $initial_value, $cb)
		2008
		2009	Adds a toggle/checkbox item to the popup. The callback gets called
		2010	whenever it gets toggled, with a boolean indicating its new value as its
		2011	first argument.
		2012
		2013	=cut
		2014
		2015	sub add_toggle {
		2016	my ($self, $text, $value, $cb) = @_;
		2017
		2018	my $item; $item = {
		2019	type => "button",
		2020	text => " $text",
		2021	value => $value,
		2022	render => sub { ($_[0]{value} ? "* " : " ") . $text },
		2023	activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
		2024	};
		2025
		2026	$self->add_item ($item);
		2027	}
		2028
		2029	=item $popup->show
		2030
		2031	Displays the popup (which is initially hidden).
		2032
		2033	=cut
		2034
		2035	sub show {
		2036	my ($self) = @_;
		2037
		2038	local $urxvt::popup::self = $self;
		2039
		2040	my $env = $self->{term}->env;
		2041	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
		2042	delete $env->{LC_ALL};
		2043	$env->{LC_CTYPE} = $self->{term}->locale;
		2044
		2045	my $term = urxvt::term->new (
		2046	$env, "popup",
		2047	"--perl-lib" => "", "--perl-ext-common" => "",
		2048	"-pty-fd" => -1, "-sl" => 0,
		2049	"-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
		2050	"--transient-for" => $self->{term}->parent,
		2051	"-display" => $self->{term}->display_id,
		2052	"-pe" => "urxvt-popup",
		2053	) or die "unable to create popup window\n";
		2054
		2055	unless (delete $term->{urxvt_popup_init_done}) {
		2056	$term->ungrab;
		2057	$term->destroy;
		2058	die "unable to initialise popup window\n";
		2059	}
		2060	}
		2061
		2062	sub DESTROY {
		2063	my ($self) = @_;
		2064
		2065	delete $self->{term}{_destroy}{$self};
		2066	$self->{term}->ungrab;
		2067	}
		2068
		2069	=back
		2070
		2071	=cut
		2072
		2073	package urxvt::watcher;
339		2074
340	=head2 The C<urxvt::timer> Class	2075	=head2 The C<urxvt::timer> Class
341		2076
342	This class implements timer watchers/events. Time is represented as a	2077	This class implements timer watchers/events. Time is represented as a
343	fractional number of seconds since the epoch. Example:	2078	fractional number of seconds since the epoch. Example:
344		2079
345	# create a digital clock display in upper right corner	2080	$term->{overlay} = $term->overlay (-1, 0, 8, 1, urxvt::OVERLAY_RSTYLE, 0);
346	$term->{timer} = urxvt::timer	2081	$term->{timer} = urxvt::timer
347	->new	2082	->new
348	->start (urxvt::NOW)	2083	->interval (1)
349	->cb (sub {	2084	->cb (sub {
350	my ($timer) = @_;
351	my $time = $timer->at;
352	$timer->start ($time + 1);
353	$self->scr_overlay (-1, 0,	2085	$term->{overlay}->set (0, 0,
354	POSIX::strftime "%H:%M:%S", localtime $time);	2086	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
355	});	2087	});
356		2088
357	=over 4	2089	=over 4
358		2090
359	=item $timer = new urxvt::timer	2091	=item $timer = new urxvt::timer
360		2092
361	Create a new timer object in stopped state.	2093	Create a new timer object in started state. It is scheduled to fire
		2094	immediately.
362		2095
363	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })	2096	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })
364		2097
365	Set the callback to be called when the timer triggers.	2098	Set the callback to be called when the timer triggers.
366		2099
367	=item $tstamp = $timer->at
368
369	Return the time this watcher will fire next.
370
371	=item $timer = $timer->set ($tstamp)	2100	=item $timer = $timer->set ($tstamp[, $interval])
372		2101
373	Set the time the event is generated to $tstamp.	2102	Set the time the event is generated to $tstamp (and optionally specifies a
		2103	new $interval).
		2104
		2105	=item $timer = $timer->interval ($interval)
		2106
		2107	By default (and when C<$interval> is C<0>), the timer will automatically
		2108	stop after it has fired once. If C<$interval> is non-zero, then the timer
		2109	is automatically rescheduled at the given intervals.
374		2110
375	=item $timer = $timer->start	2111	=item $timer = $timer->start
376		2112
377	Start the timer.	2113	Start the timer.
378		2114
379	=item $timer = $timer->start ($tstamp)	2115	=item $timer = $timer->start ($tstamp[, $interval])
380		2116
381	Set the event trigger time to C<$tstamp> and start the timer.	2117	Set the event trigger time to C<$tstamp> and start the timer. Optionally
		2118	also replaces the interval.
		2119
		2120	=item $timer = $timer->after ($delay[, $interval])
		2121
		2122	Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
382		2123
383	=item $timer = $timer->stop	2124	=item $timer = $timer->stop
384		2125
385	Stop the timer.	2126	Stop the timer.
386		2127
…		…
392		2133
393	$term->{socket} = ...	2134	$term->{socket} = ...
394	$term->{iow} = urxvt::iow	2135	$term->{iow} = urxvt::iow
395	->new	2136	->new
396	->fd (fileno $term->{socket})	2137	->fd (fileno $term->{socket})
397	->events (1) # wait for read data	2138	->events (urxvt::EV_READ)
398	->start	2139	->start
399	->cb (sub {	2140	->cb (sub {
400	my ($iow, $revents) = @_;	2141	my ($iow, $revents) = @_;
401	# $revents must be 1 here, no need to check	2142	# $revents must be 1 here, no need to check
402	sysread $term->{socket}, my $buf, 8192	2143	sysread $term->{socket}, my $buf, 8192
…		…
415	Set the callback to be called when io events are triggered. C<$reventmask>	2156	Set the callback to be called when io events are triggered. C<$reventmask>
416	is a bitset as described in the C<events> method.	2157	is a bitset as described in the C<events> method.
417		2158
418	=item $iow = $iow->fd ($fd)	2159	=item $iow = $iow->fd ($fd)
419		2160
420	Set the filedescriptor (not handle) to watch.	2161	Set the file descriptor (not handle) to watch.
421		2162
422	=item $iow = $iow->events ($eventmask)	2163	=item $iow = $iow->events ($eventmask)
423		2164
424	Set the event mask to watch. Bit #0 (value C<1>) enables watching for read	2165	Set the event mask to watch. The only allowed values are
425	data, Bit #1 (value C<2>) enables watching for write data.	2166	C<urxvt::EV_READ> and C<urxvt::EV_WRITE>, which might be ORed
		2167	together, or C<urxvt::EV_NONE>.
426		2168
427	=item $iow = $iow->start	2169	=item $iow = $iow->start
428		2170
429	Start watching for requested events on the given handle.	2171	Start watching for requested events on the given handle.
430		2172
431	=item $iow = $iow->stop	2173	=item $iow = $iow->stop
432		2174
433	Stop watching for events on the given filehandle.	2175	Stop watching for events on the given file handle.
		2176
		2177	=back
		2178
		2179	=head2 The C<urxvt::iw> Class
		2180
		2181	This class implements idle watchers, that get called automatically when
		2182	the process is idle. They should return as fast as possible, after doing
		2183	some useful work.
		2184
		2185	=over 4
		2186
		2187	=item $iw = new urxvt::iw
		2188
		2189	Create a new idle watcher object in stopped state.
		2190
		2191	=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
		2192
		2193	Set the callback to be called when the watcher triggers.
		2194
		2195	=item $timer = $timer->start
		2196
		2197	Start the watcher.
		2198
		2199	=item $timer = $timer->stop
		2200
		2201	Stop the watcher.
		2202
		2203	=back
		2204
		2205	=head2 The C<urxvt::pw> Class
		2206
		2207	This class implements process watchers. They create an event whenever a
		2208	process exits, after which they stop automatically.
		2209
		2210	my $pid = fork;
		2211	...
		2212	$term->{pw} = urxvt::pw
		2213	->new
		2214	->start ($pid)
		2215	->cb (sub {
		2216	my ($pw, $exit_status) = @_;
		2217	...
		2218	});
		2219
		2220	=over 4
		2221
		2222	=item $pw = new urxvt::pw
		2223
		2224	Create a new process watcher in stopped state.
		2225
		2226	=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
		2227
		2228	Set the callback to be called when the timer triggers.
		2229
		2230	=item $pw = $timer->start ($pid)
		2231
		2232	Tells the watcher to start watching for process C<$pid>.
		2233
		2234	=item $pw = $pw->stop
		2235
		2236	Stop the watcher.
434		2237
435	=back	2238	=back
436		2239
437	=head1 ENVIRONMENT	2240	=head1 ENVIRONMENT
438		2241
…		…
441	This variable controls the verbosity level of the perl extension. Higher	2244	This variable controls the verbosity level of the perl extension. Higher
442	numbers indicate more verbose output.	2245	numbers indicate more verbose output.
443		2246
444	=over 4	2247	=over 4
445		2248
446	=item 0 - only fatal messages	2249	=item == 0 - fatal messages
447		2250
448	=item 3 - script loading and management	2251	=item >= 3 - script loading and management
449		2252
450	=item 10 - all events received	2253	=item >=10 - all called hooks
		2254
		2255	=item >=11 - hook return values
451		2256
452	=back	2257	=back
453		2258
454	=head1 AUTHOR	2259	=head1 AUTHOR
455		2260
456	Marc Lehmann <pcg@goof.com>	2261	Marc Lehmann <schmorp@schmorp.de>
457	http://software.schmorp.de/pkg/rxvt-unicode	2262	http://software.schmorp.de/pkg/rxvt-unicode
458		2263
459	=cut	2264	=cut
460		2265
461	1	2266	1
		2267
		2268	# vim: sw=3:

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