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Revision 1.24 by root, Tue Jan 3 20:47:36 2006 UTC vs.
Revision 1.253 by sf-exg, Fri Jan 16 20:13:01 2015 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	Intelligent selection. This etxension tries to be more intelligent when the user	48	Extensions may add additional resources and C<actions>, i.e., methods
45	extends selections (double-click).	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.
46		56
47	It also offers the following bindable event:	57	=head1 API DOCUMENTATION
48
49	=over 4
50
51	=item rot13
52
53	Rot-13 the selection when activated. Used via keyboard trigger:
54
55	URxvt.keysym.C-M-r: perl:selection:rot13
56
57	=back
58
59	=item digital-clock
60
61	Displays a digital clock using the built-in overlay.
62
63	=item example-refresh-hooks
64
65	Displays a very simple digital clock in the upper right corner of the
66	window. Illustrates overwriting the refresh callbacks to create your own
67	overlays or changes.
68
69	=back
70		58
71	=head2 General API Considerations	59	=head2 General API Considerations
72		60
73	All objects (such as terminals, time watchers etc.) are typical	61	All objects (such as terminals, time watchers etc.) are typical
74	reference-to-hash objects. The hash can be used to store anything you	62	reference-to-hash objects. The hash can be used to store anything you
…		…
79	When objects are destroyed on the C++ side, the perl object hashes are	67	When objects are destroyed on the C++ side, the perl object hashes are
80	emptied, so its best to store related objects such as time watchers and	68	emptied, so its best to store related objects such as time watchers and
81	the like inside the terminal object so they get destroyed as soon as the	69	the like inside the terminal object so they get destroyed as soon as the
82	terminal is destroyed.	70	terminal is destroyed.
83		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
84	=head2 Hooks	134	=head2 Hooks
85		135
86	The following subroutines can be declared in loaded scripts, and will be	136	The following subroutines can be declared in extension files, and will be
87	called whenever the relevant event happens.	137	called whenever the relevant event happens.
88		138
89	The first argument passed to them is an object private to each terminal	139	The first argument passed to them is an extension object as described in
90	and extension package. You can call all C<urxvt::term> methods on it, but	140	the in the C<Extension Objects> section.
91	its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
92	object that is shared between all packages is stored in the C<term>
93	member.
94		141
95	All of them must return a boolean value. If it is true, then the event	142	B<All> of these hooks must return a boolean value. If any of the called
96	counts as being I<consumed>, and the invocation of other hooks is skipped,	143	hooks returns true, then the event counts as being I<consumed>, and the
97	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.
98		145
99	When in doubt, return a false value (preferably C<()>).	146	I<< When in doubt, return a false value (preferably C<()>). >>
100		147
101	=over 4	148	=over 4
102		149
103	=item on_init $term	150	=item on_init $term
104		151
105	Called after a new terminal object has been initialized, but before	152	Called after a new terminal object has been initialized, but before
106	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).
107		168
108	=item on_reset $term	169	=item on_reset $term
109		170
110	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
111	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
112	variables.	173	variables.
113		174
114	=item on_start $term	175	=item on_child_start $term, $pid
115		176
116	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.
117	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>.
118		183
119	=item on_sel_make $term, $eventtime	184	=item on_sel_make $term, $eventtime
120		185
121	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
122	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
…		…
129		194
130	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
131	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
132	by calling C<< $term->selection >>.	197	by calling C<< $term->selection >>.
133		198
134	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.
135		200
136	=item on_sel_extend $term	201	=item on_sel_extend $term
137		202
138	Called whenever the user tries to extend the selection (e.g. with a double	203	Called whenever the user tries to extend the selection (e.g. with a double
139	click) and is either supposed to return false (normal operation), or	204	click) and is either supposed to return false (normal operation), or
140	should extend the selection itelf and return true to suppress the built-in	205	should extend the selection itself and return true to suppress the built-in
141	processing.	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.
142		209
143	See the F<selection> example extension.	210	See the F<selection> example extension.
144		211
145	=item on_focus_in $term
146
147	Called whenever the window gets the keyboard focus, before urxvt does
148	focus in processing.
149
150	=item on_focus_out $term
151
152	Called wheneever the window loses keyboard focus, before urxvt does focus
153	out processing.
154
155	=item on_view_change $term, $offset	212	=item on_view_change $term, $offset
156		213
157	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
158	scrolls. Offset C<0> means display the normal terminal, positive values	215	scrolls. Offset C<0> means display the normal terminal, positive values
159	show this many lines of scrollback.	216	show this many lines of scrollback.
160		217
161	=item on_scroll_back $term, $lines, $saved	218	=item on_scroll_back $term, $lines, $saved
162		219
…		…
166		223
167	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,	224	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
168	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total	225	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
169	number of lines that will be in the scrollback buffer.	226	number of lines that will be in the scrollback buffer.
170		227
171	=item on_tty_activity $term *NYI*	228	=item on_osc_seq $term, $op, $args, $resp
172		229
173	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.
174		297
175	=item on_refresh_begin $term	298	=item on_refresh_begin $term
176		299
177	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
178	or similar effects by modify terminal contents in refresh_begin, and	301	similar effects by modifying the terminal contents in refresh_begin, and
179	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
180	code is run after this hook, and takes precedence.	303	code is run after this hook, and takes precedence.
181		304
182	=item on_refresh_end $term	305	=item on_refresh_end $term
183		306
184	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>.
185		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
186	=item on_keyboard_command $term, $string	317	=item on_user_command $term, $string *DEPRECATED*
187		318
188	Called whenever the user presses a key combination that has a	319	Called whenever a user-configured event is being activated (e.g. via
189	C<perl:string> action bound to it (see description of the B<keysym>	320	a C<perl:string> action bound to a key, see description of the B<keysym>
190	resource in the @@RXVT_NAME@@(1) manpage).	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.
191		392
192	=back	393	=back
193		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
194	=head2 Variables in the C<urxvt> Package	420	=head2 Variables in the C<urxvt> Package
195		421
196	=over 4	422	=over 4
197		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
198	=item $urxvt::TERM	437	=item $urxvt::TERM
199		438
200	The current terminal. Whenever a callback/Hook is bein executed, this	439	The current terminal. This variable stores the current C<urxvt::term>
201	variable stores the current C<urxvt::term> object.	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>.
202		457
203	=back	458	=back
204		459
205	=head2 Functions in the C<urxvt> Package	460	=head2 Functions in the C<urxvt> Package
206		461
207	=over 4	462	=over 4
208		463
209	=item urxvt::fatal $errormessage	464	=item urxvt::fatal $errormessage
210		465
211	Fatally aborts execution with the given error message. Avoid at all	466	Fatally aborts execution with the given error message (which should
212	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
213	starts up.	468	is acceptable (and useful) is in the init hook, where it prevents the
		469	terminal from starting up.
214		470
215	=item urxvt::warn $string	471	=item urxvt::warn $string
216		472
217	Calls C<rxvt_warn> with the given string which should not include a	473	Calls C<rxvt_warn> with the given string which should include a trailing
218	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
219	that calls this function.	475	that calls this function.
220		476
221	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
222	correct place, e.g. on stderr of the connecting urxvtc client.	478	correct place, e.g. on stderr of the connecting urxvtc client.
223		479
		480	Messages have a size limit of 1023 bytes currently.
		481
		482	=item @terms = urxvt::termlist
		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).
		488
224	=item $time = urxvt::NOW	489	=item $time = urxvt::NOW
225		490
226	Returns the "current time" (as per the event loop).	491	Returns the "current time" (as per the event loop).
		492
		493	=item urxvt::CurrentTime
		494
		495	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
		496	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
		497	Button4Mask, Button5Mask, AnyModifier
		498
		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
		506
		507	=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
		508	EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
		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.
227		516
228	=back	517	=back
229		518
230	=head2 RENDITION	519	=head2 RENDITION
231		520
…		…
246		535
247	=item $rend = urxvt::OVERLAY_RSTYLE	536	=item $rend = urxvt::OVERLAY_RSTYLE
248		537
249	Return the rendition mask used for overlays by default.	538	Return the rendition mask used for overlays by default.
250		539
251	=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline	540	=item $rendbit = urxvt::RS_Bold, urxvt::RS_Italic, urxvt::RS_Blink,
		541	urxvt::RS_RVid, urxvt::RS_Uline
252		542
253	Return the bit that enabled bold, italic, blink, reverse-video and	543	Return the bit that enabled bold, italic, blink, reverse-video and
254	underline, respectively. To enable such a style, just logically OR it into	544	underline, respectively. To enable such a style, just logically OR it into
255	the bitset.	545	the bitset.
256		546
…		…
258		548
259	=item $background = urxvt::GET_BASEBG $rend	549	=item $background = urxvt::GET_BASEBG $rend
260		550
261	Return the foreground/background colour index, respectively.	551	Return the foreground/background colour index, respectively.
262		552
263	=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)	553	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
264		554
265	=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)	555	=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
		556
		557	=item $rend = urxvt::SET_COLOR $rend, $new_fg, $new_bg
266		558
267	Replace the foreground/background colour in the rendition mask with the	559	Replace the foreground/background colour in the rendition mask with the
268	specified one.	560	specified one.
269		561
270	=item $value = urxvt::GET_CUSTOM ($rend)	562	=item $value = urxvt::GET_CUSTOM $rend
271		563
272	Return the "custom" value: Every rendition has 5 bits for use by	564	Return the "custom" value: Every rendition has 5 bits for use by
273	extensions. They can be set and changed as you like and are initially	565	extensions. They can be set and changed as you like and are initially
274	zero.	566	zero.
275		567
276	=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)	568	=item $rend = urxvt::SET_CUSTOM $rend, $new_value
277		569
278	Change the custom value.	570	Change the custom value.
279		571
280	=back	572	=back
281		573
282	=cut	574	=cut
283		575
284	package urxvt;
285
286	use strict;
287	use Scalar::Util ();
288
289	our $TERM;
290	our @HOOKNAME;
291	our $LIBDIR;
292
293	BEGIN {	576	BEGIN {
294	urxvt->bootstrap;
295
296	# overwrite perl's warn	577	# overwrite perl's warn
297	*CORE::GLOBAL::warn = sub {	578	*CORE::GLOBAL::warn = sub {
298	my $msg = join "", @_;	579	my $msg = join "", @_;
299	$msg .= "\n"	580	$msg .= "\n"
300	unless $msg =~ /\n$/;	581	unless $msg =~ /\n$/;
301	urxvt::warn ($msg);	582	urxvt::warn ($msg);
302	};	583	};
303	}	584	}
304		585
305	my @hook_count;	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
306	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};	650	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
307		651
308	sub verbose {	652	sub verbose {
309	my ($level, $msg) = @_;	653	my ($level, $msg) = @_;
310	warn "$msg\n" if $level <= $verbosity;	654	warn "$msg\n" if $level <= $verbosity;
311	}	655	}
312		656
313	# find on_xxx subs in the package and register them	657	my %extension_pkg;
314	# as hooks
315	sub register_package($) {
316	my ($pkg) = @_;
317
318	for my $htype (0.. $#HOOKNAME) {
319	my $name = $HOOKNAME[$htype];
320
321	my $ref = $pkg->can ("on_" . lc $name)
322	or next;
323
324	$TERM->{_hook}[$htype]{$pkg} = $ref;
325	$hook_count[$htype]++
326	or set_should_invoke $htype, 1;
327	}
328	}
329
330	my $script_pkg = "script0000";
331	my %script_pkg;
332		658
333	# load a single script into its own package, once only	659	# load a single script into its own package, once only
334	sub script_package($) {	660	sub extension_package($) {
335	my ($path) = @_;	661	my ($path) = @_;
336		662
337	$script_pkg{$path} ||= do {	663	$extension_pkg{$path} ||= do {
338	my $pkg = "urxvt::" . ($script_pkg++);	664	$path =~ /([^\/\\]+)$/;
		665	my $pkg = $1;
		666	$pkg =~ s/[^[:word:]]/_/g;
		667	$pkg = "urxvt::ext::$pkg";
339		668
340	verbose 3, "loading script '$path' into package '$pkg'";	669	verbose 3, "loading extension '$path' into package '$pkg'";
		670
		671	(${"$pkg\::_NAME"} = $path) =~ s/^.*[\\\/]//; # hackish
341		672
342	open my $fh, "<:raw", $path	673	open my $fh, "<:raw", $path
343	or die "$path: $!";	674	or die "$path: $!";
344		675
345	my $source = "package $pkg; use strict; use utf8;\n"	676	my $source =
		677	"package $pkg; use strict 'vars'; use utf8; no warnings 'utf8';\n"
346	. "#line 1 \"$path\"\n{\n"	678	. "#line 1 \"$path\"\n{\n"
347	. (do { local $/; <$fh> })	679	. (do { local $/; <$fh> })
348	. "\n};\n1";	680	. "\n};\n1";
349		681
		682	eval $source
350	eval $source or die "$path: $@";	683	or die "$path: $@";
351		684
352	$pkg	685	$pkg
353	}	686	}
354	}	687	}
		688
		689	our $retval; # return value for urxvt
355		690
356	# called by the rxvt core	691	# called by the rxvt core
357	sub invoke {	692	sub invoke {
358	local $TERM = shift;	693	local $TERM = shift;
359	my $htype = shift;	694	my $htype = shift;
360		695
361	if ($htype == 0) { # INIT	696	if ($htype == HOOK_INIT) {
362	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");	697	my @dirs = $TERM->perl_libdirs;
363		698
364	for my $ext (split /:/, $TERM->resource ("perl_ext")) {	699	$TERM->scan_extensions;
		700
		701	my %ext_arg;
		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) {
365	my @files = grep -f $_, map "$_/$ext", @dirs;	742	my @files = grep -f $_, map "$_/$ext", @dirs;
366		743
367	if (@files) {	744	if (@files) {
368	register_package script_package $files[0];	745	$TERM->register_package (extension_package $files[0], $ext_arg{$ext});
369	} else {	746	} else {
370	warn "perl extension '$ext' not found in perl library search path\n";	747	warn "perl extension '$ext' not found in perl library search path\n";
371	}	748	}
372	}	749	}
373		750
374	} elsif ($htype == 1) { # DESTROY	751	eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval");
		752	warn $@ if $@;
		753	}
		754
		755	$retval = undef;
		756
375	if (my $hook = $TERM->{_hook}) {	757	if (my $cb = $TERM->{_hook}[$htype]) {
376	for my $htype (0..$#$hook) {	758	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
377	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }	759	if $verbosity >= 10;
378	or set_should_invoke $htype, 0;	760
		761	if ($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 $verbosity >= 11;
		786	}
		787
		788	if ($htype == HOOK_DESTROY) {
		789	# clear package objects
		790	%$_ = () for values %{ $TERM->{_pkg} };
		791
		792	# clear package
		793	%$TERM = ();
		794	}
		795
		796	$retval
		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;
379	}	822	}
380	}	823	}
381	}	824	}
382		825	($mask, @color{qw(fg bg)}, \@failed)
383	my $cb = $TERM->{_hook}[$htype]
384	or return;
385
386	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
387	if $verbosity >= 10;
388
389	while (my ($pkg, $cb) = each %$cb) {
390	return 1
391	if $cb->(
392	$TERM->{$pkg} ||= do {
393	my $proxy = bless { }, urxvt::term::proxy::;
394	Scalar::Util::weaken ($proxy->{term} = $TERM);
395	$proxy
396	},
397	@_,
398	);
399	}
400
401	0
402	}	826	}
403		827
404	sub urxvt::term::proxy::AUTOLOAD {	828	package urxvt::term::extension;
405	$urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/	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 =~ /:([^:]+)$/
406	or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";	855	or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
407		856
408	eval qq{	857	eval qq{
409	sub $urxvt::term::proxy::AUTOLOAD {	858	sub $AUTOLOAD {
410	my \$proxy = shift;	859	my \$proxy = shift;
411	\$proxy->{term}->$1 (\@_)	860	\$proxy->{term}->$1 (\@_)
412	}	861	}
413	1	862	1
414	} or die "FATAL: unable to compile method forwarder: $@";	863	} or die "FATAL: unable to compile method forwarder: $@";
415		864
416	goto &$urxvt::term::proxy::AUTOLOAD;	865	goto &$AUTOLOAD;
417	}	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;
418		1090
419	=head2 The C<urxvt::term> Class	1091	=head2 The C<urxvt::term> Class
420		1092
421	=over 4	1093	=over 4
		1094
		1095	=cut
		1096
		1097	# find on_xxx subs in the package and register them
		1098	# as hooks
		1099	sub register_package {
		1100	my ($self, $pkg, $argv) = @_;
		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
		1117	for my $name (@HOOKNAME) {
		1118	if (my $ref = $pkg->can ("on_" . lc $name)) {
		1119	$proxy->enable ($name => $ref);
		1120	}
		1121	}
		1122	}
		1123
		1124	sub perl_libdirs {
		1125	map { split /:/ }
		1126	$_[0]->resource ("perl_lib"),
		1127	$ENV{URXVT_PERL_LIB},
		1128	"$ENV{HOME}/.urxvt/ext",
		1129	"$LIBDIR/perl"
		1130	}
		1131
		1132	# scan for available extensions and collect their metadata
		1133	sub scan_extensions {
		1134	my ($self) = @_;
		1135
		1136	return if exists $self->{meta};
		1137
		1138	my @urxvtdirs = perl_libdirs $self;
		1139	# my @cpandirs = grep -d, map "$_/URxvt/Ext", @INC;
		1140
		1141	$self->{meta} = \my %meta;
		1142
		1143	# first gather extensions
		1144
		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	}
		1184	};
		1185
		1186	# $gather->($_, 0) for @cpandirs;
		1187	$gather->($_, 1) for @urxvtdirs;
		1188
		1189	# and now merge resources
		1190
		1191	$meta{resource} = \my %resource;
		1192
		1193	while (my ($k, $v) = each %{ $meta{ext} }) {
		1194	#TODO: should check for extensions overriding each other
		1195	%resource = (%resource, %{ $v->{resource} });
		1196	}
		1197	}
		1198
		1199	=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
		1200
		1201	Creates a new terminal, very similar as if you had started it with system
		1202	C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
		1203	hash which defines the environment of the new terminal.
		1204
		1205	Croaks (and probably outputs an error message) if the new instance
		1206	couldn't be created. Returns C<undef> if the new instance didn't
		1207	initialise perl, and the terminal object otherwise. The C<init> and
		1208	C<start> hooks will be called before this call returns, and are free to
		1209	refer to global data (which is race free).
		1210
		1211	=cut
		1212
		1213	sub new {
		1214	my ($class, $env, @args) = @_;
		1215
		1216	$env or Carp::croak "environment hash missing in call to urxvt::term->new";
		1217	@args or Carp::croak "name argument missing in call to urxvt::term->new";
		1218
		1219	_new ([ map "$_=$env->{$_}", keys %$env ], \@args);
		1220	}
		1221
		1222	=item $term->destroy
		1223
		1224	Destroy the terminal object (close the window, free resources
		1225	etc.). Please note that urxvt will not exit as long as any event
		1226	watchers (timers, io watchers) are still active.
		1227
		1228	=item $term->exec_async ($cmd[, @args])
		1229
		1230	Works like the combination of the C<fork>/C<exec> builtins, which executes
		1231	("starts") programs in the background. This function takes care of setting
		1232	the user environment before exec'ing the command (e.g. C<PATH>) and should
		1233	be preferred over explicit calls to C<exec> or C<system>.
		1234
		1235	Returns the pid of the subprocess or C<undef> on error.
		1236
		1237	=cut
		1238
		1239	sub exec_async {
		1240	my $self = shift;
		1241
		1242	my $pid = fork;
		1243
		1244	return $pid
		1245	if !defined $pid or $pid;
		1246
		1247	%ENV = %{ $self->env };
		1248
		1249	exec @_;
		1250	urxvt::_exit 255;
		1251	}
		1252
		1253	=item $isset = $term->option ($optval[, $set])
		1254
		1255	Returns true if the option specified by C<$optval> is enabled, and
		1256	optionally change it. All option values are stored by name in the hash
		1257	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
		1258
		1259	Here is a likely non-exhaustive list of option names, please see the
		1260	source file F</src/optinc.h> to see the actual list:
		1261
		1262	borderLess buffered console cursorBlink cursorUnderline hold iconic
		1263	insecure intensityStyles iso14755 iso14755_52 jumpScroll loginShell
		1264	mapAlert meta8 mouseWheelScrollPage override_redirect pastableTabs
		1265	pointerBlank reverseVideo scrollBar scrollBar_floating scrollBar_right
		1266	scrollTtyKeypress scrollTtyOutput scrollWithBuffer secondaryScreen
		1267	secondaryScroll skipBuiltinGlyphs skipScroll transparent tripleclickwords
		1268	urgentOnBell utmpInhibit visualBell
422		1269
423	=item $value = $term->resource ($name[, $newval])	1270	=item $value = $term->resource ($name[, $newval])
424		1271
425	Returns the current resource value associated with a given name and	1272	Returns the current resource value associated with a given name and
426	optionally sets a new value. Setting values is most useful in the C<init>	1273	optionally sets a new value. Setting values is most useful in the C<init>
…		…
435	likely change).	1282	likely change).
436		1283
437	Please note that resource strings will currently only be freed when the	1284	Please note that resource strings will currently only be freed when the
438	terminal is destroyed, so changing options frequently will eat memory.	1285	terminal is destroyed, so changing options frequently will eat memory.
439		1286
440	Here is a a likely non-exhaustive list of resource names, not all of which	1287	Here is a likely non-exhaustive list of resource names, not all of which
441	are supported in every build, please see the source to see the actual	1288	are supported in every build, please see the source file F</src/rsinc.h>
442	list:	1289	to see the actual list:
443		1290
444	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont	1291	answerbackstring backgroundPixmap backspace_key blurradius
445	borderLess color cursorBlink cursorUnderline cutchars delete_key	1292	boldFont boldItalicFont borderLess buffered chdir color cursorBlink
446	display_name embed ext_bwidth fade font geometry hold iconName	1293	cursorUnderline cutchars delete_key depth display_name embed ext_bwidth
447	imFont imLocale inputMethod insecure int_bwidth intensityStyles	1294	fade font geometry hold iconName iconfile imFont imLocale inputMethod
		1295	insecure int_bwidth intensityStyles iso14755 iso14755_52 italicFont
448	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier	1296	jumpScroll letterSpace lineSpace loginShell mapAlert meta8 modifier
449	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext	1297	mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
450	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd	1298	perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
451	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating	1299	preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
452	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput	1300	scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
453	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle	1301	scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
454	shade term_name title transparent transparent_all tripleclickwords	1302	secondaryScreen secondaryScroll shade skipBuiltinGlyphs skipScroll
		1303	term_name title transient_for transparent tripleclickwords urgentOnBell
455	utmpInhibit visualBell	1304	utmpInhibit visualBell
456		1305
457	=cut	1306	=cut
458		1307
459	sub urxvt::term::resource($$;$) {	1308	sub resource($$;$) {
460	my ($self, $name) = (shift, shift);	1309	my ($self, $name) = (shift, shift);
461	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);	1310	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
462	goto &urxvt::term::_resource;	1311	goto &urxvt::term::_resource
463	}	1312	}
		1313
		1314	=item $value = $term->x_resource ($pattern)
		1315
		1316	Returns the X-Resource for the given pattern, excluding the program or
		1317	class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
		1318	same value as used by this instance of rxvt-unicode. Returns C<undef> if no
		1319	resource with that pattern exists.
		1320
		1321	Extensions that define extra resources also need to call this method
		1322	to access their values.
		1323
		1324	If the method is called on an extension object (basically, from an
		1325	extension), then the special prefix C<%.> will be replaced by the name of
		1326	the extension and a dot, and the lone string C<%> will be replaced by the
		1327	extension name itself. This makes it possible to code extensions so you
		1328	can rename them and get a new set of resources without having to change
		1329	the actual code.
		1330
		1331	This method should only be called during the C<on_start> hook, as there is
		1332	only one resource database per display, and later invocations might return
		1333	the wrong resources.
		1334
		1335	=item $value = $term->x_resource_boolean ($pattern)
		1336
		1337	Like C<x_resource>, above, but interprets the string value as a boolean
		1338	and returns C<1> for true values, C<0> for false values and C<undef> if
		1339	the resource or option isn't specified.
		1340
		1341	You should always use this method to parse boolean resources.
		1342
		1343	=cut
		1344
		1345	sub x_resource_boolean {
		1346	my $res = &x_resource;
		1347
		1348	$res =~ /^\s*(?:true|yes|on|1)\s*$/i ? 1 : defined $res && 0
		1349	}
		1350
		1351	=item $success = $term->bind_action ($key, $action)
		1352
		1353	Adds a key binding exactly as specified via a C<keysym> resource. See the
		1354	C<keysym> resource in the urxvt(1) manpage.
		1355
		1356	To add default bindings for actions, an extension should call C<<
		1357	->bind_action >> in its C<init> hook for every such binding. Doing it
		1358	in the C<init> hook allows users to override or remove the binding
		1359	again.
		1360
		1361	Example: the C<searchable-scrollback> by default binds itself
		1362	on C<Meta-s>, using C<< $self->bind_action >>, which calls C<<
		1363	$term->bind_action >>.
		1364
		1365	sub init {
		1366	my ($self) = @_;
		1367
		1368	$self->bind_action ("M-s" => "%:start");
		1369	}
		1370
		1371	=item $rend = $term->rstyle ([$new_rstyle])
		1372
		1373	Return and optionally change the current rendition. Text that is output by
		1374	the terminal application will use this style.
		1375
		1376	=item ($row, $col) = $term->screen_cur ([$row, $col])
		1377
		1378	Return the current coordinates of the text cursor position and optionally
		1379	set it (which is usually bad as applications don't expect that).
464		1380
465	=item ($row, $col) = $term->selection_mark ([$row, $col])	1381	=item ($row, $col) = $term->selection_mark ([$row, $col])
466		1382
467	=item ($row, $col) = $term->selection_beg ([$row, $col])	1383	=item ($row, $col) = $term->selection_beg ([$row, $col])
468		1384
469	=item ($row, $col) = $term->selection_end ([$row, $col])	1385	=item ($row, $col) = $term->selection_end ([$row, $col])
470		1386
471	Return the current values of the selection mark, begin or end positions,	1387	Return the current values of the selection mark, begin or end positions.
472	and optionally set them to new values.
473		1388
		1389	When arguments are given, then the selection coordinates are set to
		1390	C<$row> and C<$col>, and the selection screen is set to the current
		1391	screen.
		1392
		1393	=item $screen = $term->selection_screen ([$screen])
		1394
		1395	Returns the current selection screen, and then optionally sets it.
		1396
		1397	=item $term->selection_make ($eventtime[, $rectangular])
		1398
		1399	Tries to make a selection as set by C<selection_beg> and
		1400	C<selection_end>. If C<$rectangular> is true (default: false), a
		1401	rectangular selection will be made. This is the preferred function to make
		1402	a selection.
		1403
474	=item $success = $term->selection_grab ($eventtime)	1404	=item $success = $term->selection_grab ($eventtime[, $clipboard])
475		1405
476	Try to request the primary selection from the server (for example, as set	1406	Try to acquire ownership of the primary (clipboard if C<$clipboard> is
477	by the next method).	1407	true) selection from the server. The corresponding text can be set
		1408	with the next method. No visual feedback will be given. This function
		1409	is mostly useful from within C<on_sel_grab> hooks.
478		1410
479	=item $oldtext = $term->selection ([$newtext])	1411	=item $oldtext = $term->selection ([$newtext, $clipboard])
480		1412
481	Return the current selection text and optionally replace it by C<$newtext>.	1413	Return the current selection (clipboard if C<$clipboard> is true) text
		1414	and optionally replace it by C<$newtext>.
482		1415
		1416	=item $term->selection_clear ([$clipboard])
		1417
		1418	Revoke ownership of the primary (clipboard if C<$clipboard> is true) selection.
		1419
483	#=item $term->overlay ($x, $y, $text)	1420	=item $term->overlay_simple ($x, $y, $text)
484	#	1421
485	#Create a simple multi-line overlay box. See the next method for details.	1422	Create a simple multi-line overlay box. See the next method for details.
486	#	1423
487	#=cut	1424	=cut
488		1425
489	sub urxvt::term::scr_overlay {	1426	sub overlay_simple {
490	die;
491	my ($self, $x, $y, $text) = @_;	1427	my ($self, $x, $y, $text) = @_;
492		1428
493	my @lines = split /\n/, $text;	1429	my @lines = split /\n/, $text;
494		1430
495	my $w = 0;	1431	my $w = List::Util::max map $self->strwidth ($_), @lines;
496	for (map $self->strwidth ($_), @lines) {
497	$w = $_ if $w < $_;
498	}
499		1432
500	$self->scr_overlay_new ($x, $y, $w, scalar @lines);	1433	my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
501	$self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;	1434	$overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
		1435
		1436	$overlay
502	}	1437	}
503		1438
504	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])	1439	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
505		1440
506	Create a new (empty) overlay at the given position with the given	1441	Create a new (empty) overlay at the given position with the given
…		…
518		1453
519	The methods currently supported on C<urxvt::overlay> objects are:	1454	The methods currently supported on C<urxvt::overlay> objects are:
520		1455
521	=over 4	1456	=over 4
522		1457
523	=item $overlay->set ($x, $y, $text, $rend)	1458	=item $overlay->set ($x, $y, $text[, $rend])
524		1459
525	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts	1460	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts
526	text in rxvt-unicode's special encoding and an array of rendition values	1461	text in rxvt-unicode's special encoding and an array of rendition values
527	at a specific position inside the overlay.	1462	at a specific position inside the overlay.
528		1463
		1464	If C<$rend> is missing, then the rendition will not be changed.
		1465
529	=item $overlay->hide	1466	=item $overlay->hide
530		1467
531	If visible, hide the overlay, but do not destroy it.	1468	If visible, hide the overlay, but do not destroy it.
532		1469
533	=item $overlay->show	1470	=item $overlay->show
534		1471
535	If hidden, display the overlay again.	1472	If hidden, display the overlay again.
536		1473
537	=back	1474	=back
538		1475
		1476	=item $popup = $term->popup ($event)
		1477
		1478	Creates a new C<urxvt::popup> object that implements a popup menu. The
		1479	C<$event> I<must> be the event causing the menu to pop up (a button event,
		1480	currently).
		1481
		1482	=cut
		1483
		1484	sub popup {
		1485	my ($self, $event) = @_;
		1486
		1487	$self->grab ($event->{time}, 1)
		1488	or return;
		1489
		1490	my $popup = bless {
		1491	term => $self,
		1492	event => $event,
		1493	}, urxvt::popup::;
		1494
		1495	Scalar::Util::weaken $popup->{term};
		1496
		1497	$self->{_destroy}{$popup} = urxvt::destroy_hook { $popup->{popup}->destroy };
		1498	Scalar::Util::weaken $self->{_destroy}{$popup};
		1499
		1500	$popup
		1501	}
		1502
539	=item $cellwidth = $term->strwidth $string	1503	=item $cellwidth = $term->strwidth ($string)
540		1504
541	Returns the number of screen-cells this string would need. Correctly	1505	Returns the number of screen-cells this string would need. Correctly
542	accounts for wide and combining characters.	1506	accounts for wide and combining characters.
543		1507
544	=item $octets = $term->locale_encode $string	1508	=item $octets = $term->locale_encode ($string)
545		1509
546	Convert the given text string into the corresponding locale encoding.	1510	Convert the given text string into the corresponding locale encoding.
547		1511
548	=item $string = $term->locale_decode $octets	1512	=item $string = $term->locale_decode ($octets)
549		1513
550	Convert the given locale-encoded octets into a perl string.	1514	Convert the given locale-encoded octets into a perl string.
551		1515
		1516	=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
		1517
		1518	XORs the rendition values in the given span with the provided value
		1519	(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
		1520	refresh hooks to provide effects similar to the selection.
		1521
		1522	=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
		1523
		1524	Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
		1525	whitespace will additionally be xored with the C<$rstyle2>, which defaults
		1526	to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
		1527	it instead. Both styles I<MUST NOT> contain font styles.
		1528
		1529	=item $term->scr_bell
		1530
		1531	Ring the bell!
		1532
		1533	=item $term->scr_add_lines ($string)
		1534
		1535	Write the given text string to the screen, as if output by the application
		1536	running inside the terminal. It may not contain command sequences (escape
		1537	codes - see C<cmd_parse> for that), but is free to use line feeds,
		1538	carriage returns and tabs. The string is a normal text string, not in
		1539	locale-dependent encoding.
		1540
		1541	Normally its not a good idea to use this function, as programs might be
		1542	confused by changes in cursor position or scrolling. Its useful inside a
		1543	C<on_add_lines> hook, though.
		1544
		1545	=item $term->scr_change_screen ($screen)
		1546
		1547	Switch to given screen - 0 primary, 1 secondary.
		1548
		1549	=item $term->cmd_parse ($octets)
		1550
		1551	Similar to C<scr_add_lines>, but the argument must be in the
		1552	locale-specific encoding of the terminal and can contain command sequences
		1553	(escape codes) that will be interpreted.
		1554
552	=item $term->tt_write ($octets)	1555	=item $term->tt_write ($octets)
553		1556
554	Write the octets given in C<$data> to the tty (i.e. as program input). To	1557	Write the octets given in C<$octets> to the tty (i.e. as user input
		1558	to the program, see C<cmd_parse> for the opposite direction). To pass
555	pass characters instead of octets, you should convert your strings first	1559	characters instead of octets, you should convert your strings first to the
556	to the locale-specific encoding using C<< $term->locale_encode >>.	1560	locale-specific encoding using C<< $term->locale_encode >>.
557		1561
		1562	=item $term->tt_write_user_input ($octets)
		1563
		1564	Like C<tt_write>, but should be used when writing strings in response to
		1565	the user pressing a key, to invoke the additional actions requested by
		1566	the user for that case (C<tt_write> doesn't do that).
		1567
		1568	The typical use case would be inside C<on_action> hooks.
		1569
		1570	=item $term->tt_paste ($octets)
		1571
		1572	Write the octets given in C<$octets> to the tty as a paste, converting NL to
		1573	CR and bracketing the data with control sequences if bracketed paste mode
		1574	is set.
		1575
		1576	=item $old_events = $term->pty_ev_events ([$new_events])
		1577
		1578	Replaces the event mask of the pty watcher by the given event mask. Can
		1579	be used to suppress input and output handling to the pty/tty. See the
		1580	description of C<< urxvt::timer->events >>. Make sure to always restore
		1581	the previous value.
		1582
		1583	=item $fd = $term->pty_fd
		1584
		1585	Returns the master file descriptor for the pty in use, or C<-1> if no pty
		1586	is used.
		1587
		1588	=item $windowid = $term->parent
		1589
		1590	Return the window id of the toplevel window.
		1591
		1592	=item $windowid = $term->vt
		1593
		1594	Return the window id of the terminal window.
		1595
		1596	=item $term->vt_emask_add ($x_event_mask)
		1597
		1598	Adds the specified events to the vt event mask. Useful e.g. when you want
		1599	to receive pointer events all the times:
		1600
		1601	$term->vt_emask_add (urxvt::PointerMotionMask);
		1602
		1603	=item $term->set_urgency ($set)
		1604
		1605	Enable/disable the urgency hint on the toplevel window.
		1606
		1607	=item $term->focus_in
		1608
		1609	=item $term->focus_out
		1610
		1611	=item $term->key_press ($state, $keycode[, $time])
		1612
		1613	=item $term->key_release ($state, $keycode[, $time])
		1614
		1615	Deliver various fake events to to terminal.
		1616
		1617	=item $window_width = $term->width
		1618
		1619	=item $window_height = $term->height
		1620
		1621	=item $font_width = $term->fwidth
		1622
		1623	=item $font_height = $term->fheight
		1624
		1625	=item $font_ascent = $term->fbase
		1626
558	=item $nrow = $term->nrow	1627	=item $terminal_rows = $term->nrow
559		1628
560	=item $ncol = $term->ncol	1629	=item $terminal_columns = $term->ncol
561		1630
562	Return the number of rows/columns of the terminal window (i.e. as	1631	=item $has_focus = $term->focus
563	specified by C<-geometry>, excluding any scrollback).
564		1632
		1633	=item $is_mapped = $term->mapped
		1634
		1635	=item $max_scrollback = $term->saveLines
		1636
		1637	=item $nrow_plus_saveLines = $term->total_rows
		1638
		1639	=item $topmost_scrollback_row = $term->top_row
		1640
		1641	Return various integers describing terminal characteristics.
		1642
		1643	=item $x_display = $term->display_id
		1644
		1645	Return the DISPLAY used by rxvt-unicode.
		1646
		1647	=item $lc_ctype = $term->locale
		1648
		1649	Returns the LC_CTYPE category string used by this rxvt-unicode.
		1650
565	=item $nsaved = $term->nsaved	1651	=item $env = $term->env
566		1652
567	Returns the number of lines in the scrollback buffer.	1653	Returns a copy of the environment in effect for the terminal as a hashref
		1654	similar to C<\%ENV>.
		1655
		1656	=item @envv = $term->envv
		1657
		1658	Returns the environment as array of strings of the form C<VAR=VALUE>.
		1659
		1660	=item @argv = $term->argv
		1661
		1662	Return the argument vector as this terminal, similar to @ARGV, but
		1663	includes the program name as first element.
		1664
		1665	=cut
		1666
		1667	sub env {
		1668	+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), $_[0]->envv }
		1669	}
		1670
		1671	=item $modifiermask = $term->ModLevel3Mask
		1672
		1673	=item $modifiermask = $term->ModMetaMask
		1674
		1675	=item $modifiermask = $term->ModNumLockMask
		1676
		1677	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
		1678	AltGr), the meta key (often Alt) and the num lock key, if applicable.
		1679
		1680	=item $screen = $term->current_screen
		1681
		1682	Returns the currently displayed screen (0 primary, 1 secondary).
		1683
		1684	=item $cursor_is_hidden = $term->hidden_cursor
		1685
		1686	Returns whether the cursor is currently hidden or not.
568		1687
569	=item $view_start = $term->view_start ([$newvalue])	1688	=item $view_start = $term->view_start ([$newvalue])
570		1689
571	Returns the negative row number of the topmost line. Minimum value is	1690	Returns the row number of the topmost displayed line. Maximum value is
572	C<0>, which displays the normal terminal contents. Larger values scroll	1691	C<0>, which displays the normal terminal contents. Lower values scroll
573	this many lines into the scrollback buffer.	1692	this many lines into the scrollback buffer.
574		1693
575	=item $term->want_refresh	1694	=item $term->want_refresh
576		1695
577	Requests a screen refresh. At the next opportunity, rxvt-unicode will	1696	Requests a screen refresh. At the next opportunity, rxvt-unicode will
578	compare the on-screen display with its stored representation. If they	1697	compare the on-screen display with its stored representation. If they
579	differ, it redraws the differences.	1698	differ, it redraws the differences.
580		1699
581	Used after changing terminal contents to display them.	1700	Used after changing terminal contents to display them.
582		1701
		1702	=item $term->refresh_check
		1703
		1704	Checks if a refresh has been requested and, if so, schedules one.
		1705
583	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])	1706	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
584		1707
585	Returns the text of the entire row with number C<$row_number>. Row C<0>	1708	Returns the text of the entire row with number C<$row_number>. Row C<< $term->top_row >>
586	is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost	1709	is the topmost terminal line, row C<< $term->nrow-1 >> is the bottommost
587	terminal line. The scrollback buffer starts at line C<-1> and extends to
588	line C<< -$term->nsaved >>. Nothing will be returned if a nonexistent line	1710	terminal line. Nothing will be returned if a nonexistent line
589	is requested.	1711	is requested.
590		1712
591	If C<$new_text> is specified, it will replace characters in the current	1713	If C<$new_text> is specified, it will replace characters in the current
592	line, starting at column C<$start_col> (default C<0>), which is useful	1714	line, starting at column C<$start_col> (default C<0>), which is useful
593	to replace only parts of a line. The font index in the rendition will	1715	to replace only parts of a line. The font index in the rendition will
594	automatically be updated.	1716	automatically be updated.
595		1717
596	C<$text> is in a special encoding: tabs and wide characters that use more	1718	C<$text> is in a special encoding: tabs and wide characters that use more
597	than one cell when displayed are padded with urxvt::NOCHAR characters	1719	than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
598	(C<chr 65535>). Characters with combining characters and other characters	1720	characters. Characters with combining characters and other characters that
599	that do not fit into the normal tetx encoding will be replaced with	1721	do not fit into the normal text encoding will be replaced with characters
600	characters in the private use area.	1722	in the private use area.
601		1723
602	You have to obey this encoding when changing text. The advantage is	1724	You have to obey this encoding when changing text. The advantage is
603	that C<substr> and similar functions work on screen cells and not on	1725	that C<substr> and similar functions work on screen cells and not on
604	characters.	1726	characters.
605		1727
…		…
635	about the logical line that row C<$row_number> is part of. It supports the	1757	about the logical line that row C<$row_number> is part of. It supports the
636	following methods:	1758	following methods:
637		1759
638	=over 4	1760	=over 4
639		1761
640	=item $text = $line->t	1762	=item $text = $line->t ([$new_text])
641		1763
642	Returns the full text of the line, similar to C<ROW_t>	1764	Returns or replaces the full text of the line, similar to C<ROW_t>
643		1765
644	=item $rend = $line->r	1766	=item $rend = $line->r ([$new_rend])
645		1767
646	Returns the full rendition array of the line, similar to C<ROW_r>	1768	Returns or replaces the full rendition array of the line, similar to C<ROW_r>
647		1769
648	=item $length = $line->l	1770	=item $length = $line->l
649		1771
650	Returns the length of the line in cells, similar to C<ROW_l>.	1772	Returns the length of the line in cells, similar to C<ROW_l>.
651		1773
…		…
656	Return the row number of the first/last row of the line, respectively.	1778	Return the row number of the first/last row of the line, respectively.
657		1779
658	=item $offset = $line->offset_of ($row, $col)	1780	=item $offset = $line->offset_of ($row, $col)
659		1781
660	Returns the character offset of the given row|col pair within the logical	1782	Returns the character offset of the given row|col pair within the logical
661	line.	1783	line. Works for rows outside the line, too, and returns corresponding
		1784	offsets outside the string.
662		1785
663	=item ($row, $col) = $line->coord_of ($offset)	1786	=item ($row, $col) = $line->coord_of ($offset)
664		1787
665	Translates a string offset into terminal coordinates again.	1788	Translates a string offset into terminal coordinates again.
666		1789
667	=back	1790	=back
668		1791
669	=cut	1792	=cut
670		1793
671	sub urxvt::term::line {	1794	sub line {
672	my ($self, $row) = @_;	1795	my ($self, $row) = @_;
673		1796
674	my $maxrow = $self->nrow - 1;	1797	my $maxrow = $self->nrow - 1;
675		1798
676	my ($beg, $end) = ($row, $row);	1799	my ($beg, $end) = ($row, $row);
…		…
680		1803
681	bless {	1804	bless {
682	term => $self,	1805	term => $self,
683	beg => $beg,	1806	beg => $beg,
684	end => $end,	1807	end => $end,
		1808	ncol => $self->ncol,
685	len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),	1809	len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),
686	}, urxvt::line::	1810	}, urxvt::line::
687	}	1811	}
688		1812
689	sub urxvt::line::t {	1813	sub urxvt::line::t {
690	my ($self) = @_;	1814	my ($self) = @_;
691		1815
		1816	if (@_ > 1) {
		1817	$self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
		1818	for $self->{beg} .. $self->{end};
		1819	}
		1820
		1821	defined wantarray &&
692	substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),	1822	substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),
693	0, $self->{len}	1823	0, $self->{len}
694	}	1824	}
695		1825
696	sub urxvt::line::r {	1826	sub urxvt::line::r {
697	my ($self) = @_;	1827	my ($self) = @_;
698		1828
		1829	if (@_ > 1) {
		1830	$self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
		1831	for $self->{beg} .. $self->{end};
		1832	}
		1833
		1834	if (defined wantarray) {
699	my $rend = [	1835	my $rend = [
700	map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}	1836	map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}
701	];	1837	];
702	$#$rend = $self->{len} - 1;	1838	$#$rend = $self->{len} - 1;
703	$rend	1839	return $rend;
		1840	}
		1841
		1842	()
704	}	1843	}
705		1844
706	sub urxvt::line::beg { $_[0]{beg} }	1845	sub urxvt::line::beg { $_[0]{beg} }
707	sub urxvt::line::end { $_[0]{end} }	1846	sub urxvt::line::end { $_[0]{end} }
708	sub urxvt::line::l { $_[0]{len} }	1847	sub urxvt::line::l { $_[0]{len} }
709		1848
710	sub urxvt::line::offset_of {	1849	sub urxvt::line::offset_of {
711	my ($self, $row, $col) = @_;	1850	my ($self, $row, $col) = @_;
712		1851
713	($row - $self->{beg}) * $self->{term}->ncol + $col	1852	($row - $self->{beg}) * $self->{ncol} + $col
714	}	1853	}
715		1854
716	sub urxvt::line::coord_of {	1855	sub urxvt::line::coord_of {
717	my ($self, $offset) = @_;	1856	my ($self, $offset) = @_;
718		1857
719	use integer;	1858	use integer;
720		1859
721	(	1860	(
722	$offset / $self->{term}->ncol + $self->{beg},	1861	$offset / $self->{ncol} + $self->{beg},
723	$offset % $self->{term}->ncol	1862	$offset % $self->{ncol}
724	)	1863	)
725	}	1864	}
726		1865
727	=item ($row, $col) = $line->coord_of ($offset)
728	=item $text = $term->special_encode $string	1866	=item $text = $term->special_encode $string
729		1867
730	Converts a perl string into the special encoding used by rxvt-unicode,	1868	Converts a perl string into the special encoding used by rxvt-unicode,
731	where one character corresponds to one screen cell. See	1869	where one character corresponds to one screen cell. See
732	C<< $term->ROW_t >> for details.	1870	C<< $term->ROW_t >> for details.
733		1871
734	=item $string = $term->special_decode $text	1872	=item $string = $term->special_decode $text
735		1873
736	Converts rxvt-unicodes text reprsentation into a perl string. See	1874	Converts rxvt-unicodes text representation into a perl string. See
737	C<< $term->ROW_t >> for details.	1875	C<< $term->ROW_t >> for details.
738		1876
		1877	=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
		1878
		1879	=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
		1880
		1881	Register/unregister a synchronous button grab. See the XGrabButton
		1882	manpage.
		1883
		1884	=item $success = $term->grab ($eventtime[, $sync])
		1885
		1886	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
		1887	synchronous (C<$sync> is true). Also remembers the grab timestamp.
		1888
		1889	=item $term->allow_events_async
		1890
		1891	Calls XAllowEvents with AsyncBoth for the most recent grab.
		1892
		1893	=item $term->allow_events_sync
		1894
		1895	Calls XAllowEvents with SyncBoth for the most recent grab.
		1896
		1897	=item $term->allow_events_replay
		1898
		1899	Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
		1900	recent grab.
		1901
		1902	=item $term->ungrab
		1903
		1904	Calls XUngrabPointer and XUngrabKeyboard for the most recent grab. Is called automatically on
		1905	evaluation errors, as it is better to lose the grab in the error case as
		1906	the session.
		1907
		1908	=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
		1909
		1910	=item $atom_name = $term->XGetAtomName ($atom)
		1911
		1912	=item @atoms = $term->XListProperties ($window)
		1913
		1914	=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
		1915
		1916	=item $term->XChangeProperty ($window, $property, $type, $format, $octets)
		1917
		1918	=item $term->XDeleteProperty ($window, $property)
		1919
		1920	=item $window = $term->DefaultRootWindow
		1921
		1922	=item $term->XReparentWindow ($window, $parent, [$x, $y])
		1923
		1924	=item $term->XMapWindow ($window)
		1925
		1926	=item $term->XUnmapWindow ($window)
		1927
		1928	=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
		1929
		1930	=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
		1931
		1932	=item $term->XChangeInput ($window, $add_events[, $del_events])
		1933
		1934	=item $keysym = $term->XStringToKeysym ($string)
		1935
		1936	=item $string = $term->XKeysymToString ($keysym)
		1937
		1938	Various X or X-related functions. The C<$term> object only serves as
		1939	the source of the display, otherwise those functions map more-or-less
		1940	directly onto the X functions of the same name.
		1941
739	=back	1942	=back
		1943
		1944	=cut
		1945
		1946	package urxvt::popup;
		1947
		1948	=head2 The C<urxvt::popup> Class
		1949
		1950	=over 4
		1951
		1952	=cut
		1953
		1954	sub add_item {
		1955	my ($self, $item) = @_;
		1956
		1957	$item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal};
		1958	$item->{rend}{hover} = "\x1b[0;30;46m" unless exists $item->{rend}{hover};
		1959	$item->{rend}{active} = "\x1b[m" unless exists $item->{rend}{active};
		1960
		1961	$item->{render} ||= sub { $_[0]{text} };
		1962
		1963	push @{ $self->{item} }, $item;
		1964	}
		1965
		1966	=item $popup->add_title ($title)
		1967
		1968	Adds a non-clickable title to the popup.
		1969
		1970	=cut
		1971
		1972	sub add_title {
		1973	my ($self, $title) = @_;
		1974
		1975	$self->add_item ({
		1976	rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
		1977	text => $title,
		1978	activate => sub { },
		1979	});
		1980	}
		1981
		1982	=item $popup->add_separator ([$sepchr])
		1983
		1984	Creates a separator, optionally using the character given as C<$sepchr>.
		1985
		1986	=cut
		1987
		1988	sub add_separator {
		1989	my ($self, $sep) = @_;
		1990
		1991	$sep ||= "=";
		1992
		1993	$self->add_item ({
		1994	rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
		1995	text => "",
		1996	render => sub { $sep x $self->{term}->ncol },
		1997	activate => sub { },
		1998	});
		1999	}
		2000
		2001	=item $popup->add_button ($text, $cb)
		2002
		2003	Adds a clickable button to the popup. C<$cb> is called whenever it is
		2004	selected.
		2005
		2006	=cut
		2007
		2008	sub add_button {
		2009	my ($self, $text, $cb) = @_;
		2010
		2011	$self->add_item ({ type => "button", text => $text, activate => $cb});
		2012	}
		2013
		2014	=item $popup->add_toggle ($text, $initial_value, $cb)
		2015
		2016	Adds a toggle/checkbox item to the popup. The callback gets called
		2017	whenever it gets toggled, with a boolean indicating its new value as its
		2018	first argument.
		2019
		2020	=cut
		2021
		2022	sub add_toggle {
		2023	my ($self, $text, $value, $cb) = @_;
		2024
		2025	my $item; $item = {
		2026	type => "button",
		2027	text => " $text",
		2028	value => $value,
		2029	render => sub { ($_[0]{value} ? "* " : " ") . $text },
		2030	activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
		2031	};
		2032
		2033	$self->add_item ($item);
		2034	}
		2035
		2036	=item $popup->show
		2037
		2038	Displays the popup (which is initially hidden).
		2039
		2040	=cut
		2041
		2042	sub show {
		2043	my ($self) = @_;
		2044
		2045	local $urxvt::popup::self = $self;
		2046
		2047	my $env = $self->{term}->env;
		2048	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
		2049	delete $env->{LC_ALL};
		2050	$env->{LC_CTYPE} = $self->{term}->locale;
		2051
		2052	my $term = urxvt::term->new (
		2053	$env, "popup",
		2054	"--perl-lib" => "", "--perl-ext-common" => "",
		2055	"-pty-fd" => -1, "-sl" => 0,
		2056	"-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
		2057	"--transient-for" => $self->{term}->parent,
		2058	"-display" => $self->{term}->display_id,
		2059	"-pe" => "urxvt-popup",
		2060	) or die "unable to create popup window\n";
		2061
		2062	unless (delete $term->{urxvt_popup_init_done}) {
		2063	$term->ungrab;
		2064	$term->destroy;
		2065	die "unable to initialise popup window\n";
		2066	}
		2067	}
		2068
		2069	sub DESTROY {
		2070	my ($self) = @_;
		2071
		2072	delete $self->{term}{_destroy}{$self};
		2073	$self->{term}->ungrab;
		2074	}
		2075
		2076	=back
		2077
		2078	=cut
		2079
		2080	package urxvt::watcher;
740		2081
741	=head2 The C<urxvt::timer> Class	2082	=head2 The C<urxvt::timer> Class
742		2083
743	This class implements timer watchers/events. Time is represented as a	2084	This class implements timer watchers/events. Time is represented as a
744	fractional number of seconds since the epoch. Example:	2085	fractional number of seconds since the epoch. Example:
…		…
748	->new	2089	->new
749	->interval (1)	2090	->interval (1)
750	->cb (sub {	2091	->cb (sub {
751	$term->{overlay}->set (0, 0,	2092	$term->{overlay}->set (0, 0,
752	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);	2093	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
753	});	2094	});
754		2095
755	=over 4	2096	=over 4
756		2097
757	=item $timer = new urxvt::timer	2098	=item $timer = new urxvt::timer
758		2099
…		…
761		2102
762	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })	2103	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })
763		2104
764	Set the callback to be called when the timer triggers.	2105	Set the callback to be called when the timer triggers.
765		2106
766	=item $tstamp = $timer->at
767
768	Return the time this watcher will fire next.
769
770	=item $timer = $timer->set ($tstamp)	2107	=item $timer = $timer->set ($tstamp[, $interval])
771		2108
772	Set the time the event is generated to $tstamp.	2109	Set the time the event is generated to $tstamp (and optionally specifies a
		2110	new $interval).
773		2111
774	=item $timer = $timer->interval ($interval)	2112	=item $timer = $timer->interval ($interval)
775		2113
776	Normally (and when C<$interval> is C<0>), the timer will automatically	2114	By default (and when C<$interval> is C<0>), the timer will automatically
777	stop after it has fired once. If C<$interval> is non-zero, then the timer	2115	stop after it has fired once. If C<$interval> is non-zero, then the timer
778	is automatically rescheduled at the given intervals.	2116	is automatically rescheduled at the given intervals.
779		2117
780	=item $timer = $timer->start	2118	=item $timer = $timer->start
781		2119
782	Start the timer.	2120	Start the timer.
783		2121
784	=item $timer = $timer->start ($tstamp)	2122	=item $timer = $timer->start ($tstamp[, $interval])
785		2123
786	Set the event trigger time to C<$tstamp> and start the timer.	2124	Set the event trigger time to C<$tstamp> and start the timer. Optionally
		2125	also replaces the interval.
		2126
		2127	=item $timer = $timer->after ($delay[, $interval])
		2128
		2129	Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
787		2130
788	=item $timer = $timer->stop	2131	=item $timer = $timer->stop
789		2132
790	Stop the timer.	2133	Stop the timer.
791		2134
…		…
797		2140
798	$term->{socket} = ...	2141	$term->{socket} = ...
799	$term->{iow} = urxvt::iow	2142	$term->{iow} = urxvt::iow
800	->new	2143	->new
801	->fd (fileno $term->{socket})	2144	->fd (fileno $term->{socket})
802	->events (1) # wait for read data	2145	->events (urxvt::EV_READ)
803	->start	2146	->start
804	->cb (sub {	2147	->cb (sub {
805	my ($iow, $revents) = @_;	2148	my ($iow, $revents) = @_;
806	# $revents must be 1 here, no need to check	2149	# $revents must be 1 here, no need to check
807	sysread $term->{socket}, my $buf, 8192	2150	sysread $term->{socket}, my $buf, 8192
…		…
820	Set the callback to be called when io events are triggered. C<$reventmask>	2163	Set the callback to be called when io events are triggered. C<$reventmask>
821	is a bitset as described in the C<events> method.	2164	is a bitset as described in the C<events> method.
822		2165
823	=item $iow = $iow->fd ($fd)	2166	=item $iow = $iow->fd ($fd)
824		2167
825	Set the filedescriptor (not handle) to watch.	2168	Set the file descriptor (not handle) to watch.
826		2169
827	=item $iow = $iow->events ($eventmask)	2170	=item $iow = $iow->events ($eventmask)
828		2171
829	Set the event mask to watch. Bit #0 (value C<1>) enables watching for read	2172	Set the event mask to watch. The only allowed values are
830	data, Bit #1 (value C<2>) enables watching for write data.	2173	C<urxvt::EV_READ> and C<urxvt::EV_WRITE>, which might be ORed
		2174	together, or C<urxvt::EV_NONE>.
831		2175
832	=item $iow = $iow->start	2176	=item $iow = $iow->start
833		2177
834	Start watching for requested events on the given handle.	2178	Start watching for requested events on the given handle.
835		2179
836	=item $iow = $iow->stop	2180	=item $iow = $iow->stop
837		2181
838	Stop watching for events on the given filehandle.	2182	Stop watching for events on the given file handle.
		2183
		2184	=back
		2185
		2186	=head2 The C<urxvt::iw> Class
		2187
		2188	This class implements idle watchers, that get called automatically when
		2189	the process is idle. They should return as fast as possible, after doing
		2190	some useful work.
		2191
		2192	=over 4
		2193
		2194	=item $iw = new urxvt::iw
		2195
		2196	Create a new idle watcher object in stopped state.
		2197
		2198	=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
		2199
		2200	Set the callback to be called when the watcher triggers.
		2201
		2202	=item $timer = $timer->start
		2203
		2204	Start the watcher.
		2205
		2206	=item $timer = $timer->stop
		2207
		2208	Stop the watcher.
		2209
		2210	=back
		2211
		2212	=head2 The C<urxvt::pw> Class
		2213
		2214	This class implements process watchers. They create an event whenever a
		2215	process exits, after which they stop automatically.
		2216
		2217	my $pid = fork;
		2218	...
		2219	$term->{pw} = urxvt::pw
		2220	->new
		2221	->start ($pid)
		2222	->cb (sub {
		2223	my ($pw, $exit_status) = @_;
		2224	...
		2225	});
		2226
		2227	=over 4
		2228
		2229	=item $pw = new urxvt::pw
		2230
		2231	Create a new process watcher in stopped state.
		2232
		2233	=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
		2234
		2235	Set the callback to be called when the timer triggers.
		2236
		2237	=item $pw = $timer->start ($pid)
		2238
		2239	Tells the watcher to start watching for process C<$pid>.
		2240
		2241	=item $pw = $pw->stop
		2242
		2243	Stop the watcher.
839		2244
840	=back	2245	=back
841		2246
842	=head1 ENVIRONMENT	2247	=head1 ENVIRONMENT
843		2248
…		…
846	This variable controls the verbosity level of the perl extension. Higher	2251	This variable controls the verbosity level of the perl extension. Higher
847	numbers indicate more verbose output.	2252	numbers indicate more verbose output.
848		2253
849	=over 4	2254	=over 4
850		2255
851	=item 0 - only fatal messages	2256	=item == 0 - fatal messages
852		2257
853	=item 3 - script loading and management	2258	=item >= 3 - script loading and management
854		2259
855	=item 10 - all events received	2260	=item >=10 - all called hooks
		2261
		2262	=item >=11 - hook return values
856		2263
857	=back	2264	=back
858		2265
859	=head1 AUTHOR	2266	=head1 AUTHOR
860		2267
861	Marc Lehmann <pcg@goof.com>	2268	Marc Lehmann <schmorp@schmorp.de>
862	http://software.schmorp.de/pkg/rxvt-unicode	2269	http://software.schmorp.de/pkg/rxvt-unicode
863		2270
864	=cut	2271	=cut
865		2272
866	1	2273	1
		2274
		2275	# vim: sw=3:

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