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Revision 1.43 by root, Sat Jan 7 04:19:43 2006 UTC vs.
Revision 1.252 by root, Sat Dec 27 19:27:42 2014 UTC

1	=encoding utf8	1	=encoding utf8
2		2
3	=head1 NAME	3	=head1 NAME
4		4
5	@@RXVT_NAME@@perl - rxvt-unicode's embedded perl interpreter	5	urxvtperl - rxvt-unicode's embedded perl interpreter
6		6
7	=head1 SYNOPSIS	7	=head1 SYNOPSIS
8		8
9	# create a file grab_test in $HOME:	9	# create a file grab_test in $HOME:
10		10
11	sub on_sel_grab {	11	sub on_sel_grab {
12	warn "you selected ", $_[0]->selection;	12	warn "you selected ", $_[0]->selection;
13	()	13	()
14	}	14	}
15		15
16	# start a @@RXVT_NAME@@ using it:	16	# start a urxvt using it:
17		17
18	@@RXVT_NAME@@ --perl-lib $HOME -pe grab_test	18	urxvt --perl-lib $HOME -pe grab_test
19		19
20	=head1 DESCRIPTION	20	=head1 DESCRIPTION
21		21
22	Everytime a terminal object gets created, scripts specified via the	22	Every time a terminal object gets created, extension scripts specified via
23	C<perl> resource are loaded and associated with it.	23	the C<perl> resource are loaded and associated with it.
24		24
25	Scripts are compiled in a 'use strict' and 'use utf8' environment, and	25	Scripts are compiled in a 'use strict "vars"' and 'use utf8' environment, and
26	thus must be encoded as UTF-8.	26	thus must be encoded as UTF-8.
27		27
28	Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where	28	Each script will only ever be loaded once, even in urxvtd, where
29	scripts will be shared (but not enabled) for all terminals.	29	scripts will be shared (but not enabled) for all terminals.
30		30
31	=head2 Prepackaged Extensions	31	You can disable the embedded perl interpreter by setting both "perl-ext"
		32	and "perl-ext-common" resources to the empty string.
32		33
33	This section describes the extensiosn delivered with this version. You can	34	=head1 PREPACKAGED EXTENSIONS
34	find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.	35
		36	A number of extensions are delivered with this release. You can find them
		37	in F<< <libdir>/urxvt/perl/ >>, and the documentation can be viewed using
		38	F<< man urxvt-<EXTENSIONNAME> >>.
35		39
36	You can activate them like this:	40	You can activate them like this:
37		41
38	@@RXVT_NAME@@ -pe <extensionname>	42	urxvt -pe <extensionname>
39		43
40	=over 4	44	Or by adding them to the resource for extensions loaded by default:
41		45
42	=item selection	46	URxvt.perl-ext-common: default,selection-autotransform
43		47
44	Intelligent selection. This extension tries to be more intelligent when	48	Extensions may add additional resources and C<actions>, i.e., methods
45	the user extends selections (double-click). Right now, it tries to select	49	which can be bound to a key and invoked by the user. An extension can
46	urls and complete shell-quoted arguments, which is very convenient, too,	50	define the resources it support using so called META comments,
47	if your F<ls> supports C<--quoting-style=shell>.	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.
48		56
49	It also offers the following bindable event:	57	=head1 API DOCUMENTATION
50
51	=over 4
52
53	=item rot13
54
55	Rot-13 the selection when activated. Used via keyboard trigger:
56
57	URxvt.keysym.C-M-r: perl:selection:rot13
58
59	=back
60
61	=item digital-clock
62
63	Displays a digital clock using the built-in overlay.
64
65	=item mark-urls
66
67	Uses per-line display filtering (C<on_line_update>) to underline urls.
68
69	=item block-graphics-to-ascii
70
71	A not very useful example of filtering all text output to the terminal,
72	by replacing all line-drawing characters (U+2500 .. U+259F) by a
73	similar-looking ascii character.
74
75	=item example-refresh-hooks
76
77	Displays a very simple digital clock in the upper right corner of the
78	window. Illustrates overwriting the refresh callbacks to create your own
79	overlays or changes.
80
81	=back
82		58
83	=head2 General API Considerations	59	=head2 General API Considerations
84		60
85	All objects (such as terminals, time watchers etc.) are typical	61	All objects (such as terminals, time watchers etc.) are typical
86	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
…		…
98		74
99	=over 4	75	=over 4
100		76
101	=item $text	77	=item $text
102		78
103	Rxvt-unicodes special way of encoding text, where one "unicode" character	79	Rxvt-unicode's special way of encoding text, where one "unicode" character
104	always represents one screen cell. See L<row_t> for a discussion of this format.	80	always represents one screen cell. See L<ROW_t> for a discussion of this format.
105		81
106	=item $string	82	=item $string
107		83
108	A perl text string, with an emphasis on I<text>. It can store all unicode	84	A perl text string, with an emphasis on I<text>. It can store all unicode
109	characters and is to be distinguished with text encoded in a specific	85	characters and is to be distinguished with text encoded in a specific
…		…
112	=item $octets	88	=item $octets
113		89
114	Either binary data or - more common - a text string encoded in a	90	Either binary data or - more common - a text string encoded in a
115	locale-specific way.	91	locale-specific way.
116		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
117	=back	132	=back
118		133
119	=head2 Hooks	134	=head2 Hooks
120		135
121	The following subroutines can be declared in extension files, and will be	136	The following subroutines can be declared in extension files, and will be
122	called whenever the relevant event happens.	137	called whenever the relevant event happens.
123		138
124	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
125	and extension package. You can call all C<urxvt::term> methods on it, but	140	the in the C<Extension Objects> section.
126	its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
127	object that is shared between all packages is stored in the C<term>
128	member.
129		141
130	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
131	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
132	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.
133		145
134	When in doubt, return a false value (preferably C<()>).	146	I<< When in doubt, return a false value (preferably C<()>). >>
135		147
136	=over 4	148	=over 4
137		149
138	=item on_init $term	150	=item on_init $term
139		151
140	Called after a new terminal object has been initialized, but before	152	Called after a new terminal object has been initialized, but before
141	windows are created or the command gets run. Most methods are unsafe to	153	windows are created or the command gets run. Most methods are unsafe to
142	call or deliver senseless data, as terminal size and other characteristics	154	call or deliver senseless data, as terminal size and other characteristics
143	have not yet been determined. You can safely query and change resources,	155	have not yet been determined. You can safely query and change resources
144	though.	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).
145		168
146	=item on_reset $term	169	=item on_reset $term
147		170
148	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
149	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
150	variables.	173	variables.
151		174
152	=item on_start $term	175	=item on_child_start $term, $pid
153		176
154	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.
155	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>.
156		183
157	=item on_sel_make $term, $eventtime	184	=item on_sel_make $term, $eventtime
158		185
159	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
160	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
…		…
167		194
168	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
169	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
170	by calling C<< $term->selection >>.	197	by calling C<< $term->selection >>.
171		198
172	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.
173		200
174	=item on_sel_extend $term	201	=item on_sel_extend $term
175		202
176	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
177	click) and is either supposed to return false (normal operation), or	204	click) and is either supposed to return false (normal operation), or
178	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
179	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.
180		209
181	See the F<selection> example extension.	210	See the F<selection> example extension.
182		211
183	=item on_focus_in $term
184
185	Called whenever the window gets the keyboard focus, before urxvt does
186	focus in processing.
187
188	=item on_focus_out $term
189
190	Called wheneever the window loses keyboard focus, before urxvt does focus
191	out processing.
192
193	=item on_view_change $term, $offset	212	=item on_view_change $term, $offset
194		213
195	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
196	scrolls. Offset C<0> means display the normal terminal, positive values	215	scrolls. Offset C<0> means display the normal terminal, positive values
197	show this many lines of scrollback.	216	show this many lines of scrollback.
198		217
199	=item on_scroll_back $term, $lines, $saved	218	=item on_scroll_back $term, $lines, $saved
200		219
…		…
204		223
205	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,	224	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
206	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total	225	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
207	number of lines that will be in the scrollback buffer.	226	number of lines that will be in the scrollback buffer.
208		227
209	=item on_tty_activity $term *NYI*
210
211	Called whenever the program(s) running in the urxvt window send output.
212
213	=item on_osc_seq $term, $string	228	=item on_osc_seq $term, $op, $args, $resp
		229
		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, $resp
214		239
215	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =	240	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
216	operating system command) is processed. Cursor position and other state	241	operating system command) is processed. Cursor position and other state
217	information is up-to-date when this happens. For interoperability, the	242	information is up-to-date when this happens. For interoperability, the
218	string should start with the extension name and a colon, to distinguish	243	string should start with the extension name (sans -osc) and a semicolon,
219	it from commands for other extensions, and this might be enforced in the	244	to distinguish it from commands for other extensions, and this might be
220	future.	245	enforced in the future.
		246
		247	For example, C<overlay-osc> uses this:
		248
		249	sub on_osc_seq_perl {
		250	my ($self, $osc, $resp) = @_;
		251
		252	return unless $osc =~ s/^overlay;//;
		253
		254	... process remaining $osc string
		255	}
221		256
222	Be careful not ever to trust (in a security sense) the data you receive,	257	Be careful not ever to trust (in a security sense) the data you receive,
223	as its source can not easily be controleld (e-mail content, messages from	258	as its source can not easily be controlled (e-mail content, messages from
224	other users on the same system etc.).	259	other users on the same system etc.).
		260
		261	For responses, C<$resp> contains the end-of-args separator used by the
		262	sender.
225		263
226	=item on_add_lines $term, $string	264	=item on_add_lines $term, $string
227		265
228	Called whenever text is about to be output, with the text as argument. You	266	Called whenever text is about to be output, with the text as argument. You
229	can filter/change and output the text yourself by returning a true value	267	can filter/change and output the text yourself by returning a true value
230	and calling C<< $term->scr_add_lines >> yourself. Please note that this	268	and calling C<< $term->scr_add_lines >> yourself. Please note that this
231	might be very slow, however, as your hook is called for B<all> text being	269	might be very slow, however, as your hook is called for B<all> text being
232	output.	270	output.
233		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
234	=item on_line_update $term, $row	284	=item on_line_update $term, $row
235		285
236	Called whenever a line was updated or changed. Can be used to filter	286	Called whenever a line was updated or changed. Can be used to filter
237	screen output (e.g. underline urls or other useless stuff). Only lines	287	screen output (e.g. underline urls or other useless stuff). Only lines
238	that are being shown will be filtered, and, due to performance reasons,	288	that are being shown will be filtered, and, due to performance reasons,
…		…
245	later with the already-modified line (e.g. if unrelated parts change), so	295	later with the already-modified line (e.g. if unrelated parts change), so
246	you cannot just toggle rendition bits, but only set them.	296	you cannot just toggle rendition bits, but only set them.
247		297
248	=item on_refresh_begin $term	298	=item on_refresh_begin $term
249		299
250	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
251	or similar effects by modify terminal contents in refresh_begin, and	301	similar effects by modifying the terminal contents in refresh_begin, and
252	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
253	code is run after this hook, and takes precedence.	303	code is run after this hook, and takes precedence.
254		304
255	=item on_refresh_end $term	305	=item on_refresh_end $term
256		306
257	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>.
258		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
259	=item on_keyboard_command $term, $string	317	=item on_user_command $term, $string *DEPRECATED*
260		318
261	Called whenever the user presses a key combination that has a	319	Called whenever a user-configured event is being activated (e.g. via
262	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>
263	resource in the @@RXVT_NAME@@(1) manpage).	321	resource in the urxvt(1) manpage).
264		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
265	=item on_key_press $term, $event, $octets	356	=item on_key_press $term, $event, $keysym, $octets
266		357
267	=item on_key_release $term, $event	358	=item on_key_release $term, $event, $keysym
268		359
269	=item on_button_press $term, $event	360	=item on_button_press $term, $event
270		361
271	=item on_button_release $term, $event	362	=item on_button_release $term, $event
272		363
273	=item on_motion_notify $term, $event	364	=item on_motion_notify $term, $event
274		365
		366	=item on_map_notify $term, $event
		367
		368	=item on_unmap_notify $term, $event
		369
275	Called whenever the corresponding X event is received for the terminal If	370	Called whenever the corresponding X event is received for the terminal. If
276	the hook returns true, then the even will be ignored by rxvt-unicode.	371	the hook returns true, then the event will be ignored by rxvt-unicode.
277		372
278	The event is a hash with most values as named by Xlib (see the XEvent	373	The event is a hash with most values as named by Xlib (see the XEvent
279	manpage), with the additional members C<row> and C<col>, which are the row	374	manpage), with the additional members C<row> and C<col>, which are the
280	and column under the mouse cursor.	375	(real, not screen-based) row and column under the mouse cursor.
281		376
282	C<on_key_press> additionally receives the string rxvt-unicode would	377	C<on_key_press> additionally receives the string rxvt-unicode would
283	output, if any, in locale-specific encoding.	378	output, if any, in locale-specific encoding.
284		379
285	subwindow.	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.
286		392
287	=back	393	=back
288		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
289	=head2 Variables in the C<urxvt> Package	420	=head2 Variables in the C<urxvt> Package
290		421
291	=over 4	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>.
292		436
293	=item $urxvt::TERM	437	=item $urxvt::TERM
294		438
295	The current terminal. This variable stores the current C<urxvt::term>	439	The current terminal. This variable stores the current C<urxvt::term>
296	object, whenever a callback/hook is executing.	440	object, whenever a callback/hook is executing.
297		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
298	=back	458	=back
299		459
300	=head2 Functions in the C<urxvt> Package	460	=head2 Functions in the C<urxvt> Package
301		461
302	=over 4	462	=over 4
303		463
304	=item $term = new urxvt [arg...]
305
306	Creates a new terminal, very similar as if you had started it with
307	C<system $binfile, arg...>. Croaks (and probably outputs an error message)
308	if the new instance couldn't be created. Returns C<undef> if the new
309	instance didn't initialise perl, and the terminal object otherwise. The
310	C<init> and C<start> hooks will be called during the call.
311
312	=item urxvt::fatal $errormessage	464	=item urxvt::fatal $errormessage
313		465
314	Fatally aborts execution with the given error message. Avoid at all	466	Fatally aborts execution with the given error message (which should
315	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
316	starts up.	468	is acceptable (and useful) is in the init hook, where it prevents the
		469	terminal from starting up.
317		470
318	=item urxvt::warn $string	471	=item urxvt::warn $string
319		472
320	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
321	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
322	that calls this function.	475	that calls this function.
323		476
324	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
325	correct place, e.g. on stderr of the connecting urxvtc client.	478	correct place, e.g. on stderr of the connecting urxvtc client.
326		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
327	=item $time = urxvt::NOW	489	=item $time = urxvt::NOW
328		490
329	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.
330		516
331	=back	517	=back
332		518
333	=head2 RENDITION	519	=head2 RENDITION
334		520
…		…
349		535
350	=item $rend = urxvt::OVERLAY_RSTYLE	536	=item $rend = urxvt::OVERLAY_RSTYLE
351		537
352	Return the rendition mask used for overlays by default.	538	Return the rendition mask used for overlays by default.
353		539
354	=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
355		542
356	Return the bit that enabled bold, italic, blink, reverse-video and	543	Return the bit that enabled bold, italic, blink, reverse-video and
357	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
358	the bitset.	545	the bitset.
359		546
…		…
361		548
362	=item $background = urxvt::GET_BASEBG $rend	549	=item $background = urxvt::GET_BASEBG $rend
363		550
364	Return the foreground/background colour index, respectively.	551	Return the foreground/background colour index, respectively.
365		552
366	=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)	553	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
367		554
368	=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
369		558
370	Replace the foreground/background colour in the rendition mask with the	559	Replace the foreground/background colour in the rendition mask with the
371	specified one.	560	specified one.
372		561
373	=item $value = urxvt::GET_CUSTOM ($rend)	562	=item $value = urxvt::GET_CUSTOM $rend
374		563
375	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
376	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
377	zero.	566	zero.
378		567
379	=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)	568	=item $rend = urxvt::SET_CUSTOM $rend, $new_value
380		569
381	Change the custom value.	570	Change the custom value.
382		571
383	=back	572	=back
384		573
385	=cut	574	=cut
386		575
387	package urxvt;
388
389	use strict;
390	use Scalar::Util ();
391
392	our $TERM;
393	our @HOOKNAME;
394	our $LIBDIR;
395
396	BEGIN {	576	BEGIN {
397	urxvt->bootstrap;
398
399	# overwrite perl's warn	577	# overwrite perl's warn
400	*CORE::GLOBAL::warn = sub {	578	*CORE::GLOBAL::warn = sub {
401	my $msg = join "", @_;	579	my $msg = join "", @_;
402	$msg .= "\n"	580	$msg .= "\n"
403	unless $msg =~ /\n$/;	581	unless $msg =~ /\n$/;
404	urxvt::warn ($msg);	582	urxvt::warn ($msg);
405	};	583	};
406	}	584	}
407		585
408	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
409	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};	650	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
410		651
411	sub verbose {	652	sub verbose {
412	my ($level, $msg) = @_;	653	my ($level, $msg) = @_;
413	warn "$msg\n" if $level <= $verbosity;	654	warn "$msg\n" if $level <= $verbosity;
414	}	655	}
415		656
416	# find on_xxx subs in the package and register them	657	my %extension_pkg;
417	# as hooks
418	sub register_package($) {
419	my ($pkg) = @_;
420
421	for my $htype (0.. $#HOOKNAME) {
422	my $name = $HOOKNAME[$htype];
423
424	my $ref = $pkg->can ("on_" . lc $name)
425	or next;
426
427	$TERM->{_hook}[$htype]{$pkg} = $ref;
428	$hook_count[$htype]++
429	or set_should_invoke $htype, 1;
430	}
431	}
432
433	my $script_pkg = "script0000";
434	my %script_pkg;
435		658
436	# load a single script into its own package, once only	659	# load a single script into its own package, once only
437	sub script_package($) {	660	sub extension_package($) {
438	my ($path) = @_;	661	my ($path) = @_;
439		662
440	$script_pkg{$path} ||= do {	663	$extension_pkg{$path} ||= do {
441	my $pkg = "urxvt::" . ($script_pkg++);	664	$path =~ /([^\/\\]+)$/;
		665	my $pkg = $1;
		666	$pkg =~ s/[^[:word:]]/_/g;
		667	$pkg = "urxvt::ext::$pkg";
442		668
443	verbose 3, "loading script '$path' into package '$pkg'";	669	verbose 3, "loading extension '$path' into package '$pkg'";
		670
		671	(${"$pkg\::_NAME"} = $path) =~ s/^.*[\\\/]//; # hackish
444		672
445	open my $fh, "<:raw", $path	673	open my $fh, "<:raw", $path
446	or die "$path: $!";	674	or die "$path: $!";
447		675
448	my $source = "package $pkg; use strict; use utf8;\n"	676	my $source =
		677	"package $pkg; use strict 'vars'; use utf8; no warnings 'utf8';\n"
449	. "#line 1 \"$path\"\n{\n"	678	. "#line 1 \"$path\"\n{\n"
450	. (do { local $/; <$fh> })	679	. (do { local $/; <$fh> })
451	. "\n};\n1";	680	. "\n};\n1";
452		681
		682	eval $source
453	eval $source or die "$path: $@";	683	or die "$path: $@";
454		684
455	$pkg	685	$pkg
456	}	686	}
457	}	687	}
458		688
…		…
461	# called by the rxvt core	691	# called by the rxvt core
462	sub invoke {	692	sub invoke {
463	local $TERM = shift;	693	local $TERM = shift;
464	my $htype = shift;	694	my $htype = shift;
465		695
466	if ($htype == 0) { # INIT	696	if ($htype == HOOK_INIT) {
467	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");	697	my @dirs = $TERM->perl_libdirs;
468		698
		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 (
469	for my $ext (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {	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) {
470	my @files = grep -f $_, map "$_/$ext", @dirs;	742	my @files = grep -f $_, map "$_/$ext", @dirs;
471		743
472	if (@files) {	744	if (@files) {
473	register_package script_package $files[0];	745	$TERM->register_package (extension_package $files[0], $ext_arg{$ext});
474	} else {	746	} else {
475	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";
476	}	748	}
477	}	749	}
		750
		751	eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval");
		752	warn $@ if $@;
478	}	753	}
479		754
480	$retval = undef;	755	$retval = undef;
481		756
482	if (my $cb = $TERM->{_hook}[$htype]) {	757	if (my $cb = $TERM->{_hook}[$htype]) {
483	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"	758	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
484	if $verbosity >= 10;	759	if $verbosity >= 10;
485		760
486	keys %$cb;	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";
487		767
488	while (my ($pkg, $cb) = each %$cb) {	768	$cb = $cb->{$pkg}
489	$retval = $cb->(	769	or return undef; #TODO: maybe warn user?
490	$TERM->{_pkg}{$pkg} ||= do {	770
491	my $proxy = bless { }, urxvt::term::proxy::;	771	$cb = { $pkg => $cb };
492	Scalar::Util::weaken ($proxy->{term} = $TERM);
493	$proxy
494	},
495	@_,
496	) and last;
497	}	772	}
498	}
499		773
500	if ($htype == 1) { # DESTROY	774	for my $pkg (keys %$cb) {
501	# remove hooks if unused	775	my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg} || $TERM, @_) };
502	if (my $hook = $TERM->{_hook}) {	776	$retval ||= $retval_;
503	for my $htype (0..$#$hook) {	777
504	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }	778	if ($@) {
505	or set_should_invoke $htype, 0;	779	$TERM->ungrab; # better to lose the grab than the session
		780	warn $@;
506	}	781	}
507	}	782	}
508		783
		784	verbose 11, "$HOOKNAME[$htype] returning <$retval>"
		785	if $verbosity >= 11;
		786	}
		787
		788	if ($htype == HOOK_DESTROY) {
509	# clear package objects	789	# clear package objects
510	%$_ = () for values %{ $TERM->{_pkg} };	790	%$_ = () for values %{ $TERM->{_pkg} };
511		791
512	# clear package	792	# clear package
513	%$TERM = ();	793	%$TERM = ();
514	}	794	}
515		795
516	$retval	796	$retval
517	}	797	}
518		798
519	sub urxvt::term::proxy::AUTOLOAD {	799	sub SET_COLOR($$$) {
520	$urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/	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 =~ /:([^:]+)$/
521	or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";	855	or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
522		856
523	eval qq{	857	eval qq{
524	sub $urxvt::term::proxy::AUTOLOAD {	858	sub $AUTOLOAD {
525	my \$proxy = shift;	859	my \$proxy = shift;
526	\$proxy->{term}->$1 (\@_)	860	\$proxy->{term}->$1 (\@_)
527	}	861	}
528	1	862	1
529	} or die "FATAL: unable to compile method forwarder: $@";	863	} or die "FATAL: unable to compile method forwarder: $@";
530		864
531	goto &$urxvt::term::proxy::AUTOLOAD;	865	goto &$AUTOLOAD;
532	}	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;
533		1090
534	=head2 The C<urxvt::term> Class	1091	=head2 The C<urxvt::term> Class
535		1092
536	=over 4	1093	=over 4
537		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
538	=item $term->destroy	1222	=item $term->destroy
539		1223
540	Destroy the terminal object (close the window, free resources etc.).	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
541		1269
542	=item $value = $term->resource ($name[, $newval])	1270	=item $value = $term->resource ($name[, $newval])
543		1271
544	Returns the current resource value associated with a given name and	1272	Returns the current resource value associated with a given name and
545	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>
…		…
554	likely change).	1282	likely change).
555		1283
556	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
557	terminal is destroyed, so changing options frequently will eat memory.	1285	terminal is destroyed, so changing options frequently will eat memory.
558		1286
559	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
560	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>
561	list:	1289	to see the actual list:
562		1290
563	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont	1291	answerbackstring backgroundPixmap backspace_key blurradius
564	borderLess color cursorBlink cursorUnderline cutchars delete_key	1292	boldFont boldItalicFont borderLess buffered chdir color cursorBlink
565	display_name embed ext_bwidth fade font geometry hold iconName	1293	cursorUnderline cutchars delete_key depth display_name embed ext_bwidth
566	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
567	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier	1296	jumpScroll letterSpace lineSpace loginShell mapAlert meta8 modifier
568	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2	1297	mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
569	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd	1298	perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
570	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating	1299	preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
571	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput	1300	scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
572	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle	1301	scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
573	shade term_name title transparent transparent_all tripleclickwords	1302	secondaryScreen secondaryScroll shade skipBuiltinGlyphs skipScroll
		1303	term_name title transient_for transparent tripleclickwords urgentOnBell
574	utmpInhibit visualBell	1304	utmpInhibit visualBell
575		1305
576	=cut	1306	=cut
577		1307
578	sub urxvt::term::resource($$;$) {	1308	sub resource($$;$) {
579	my ($self, $name) = (shift, shift);	1309	my ($self, $name) = (shift, shift);
580	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);	1310	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
581	goto &urxvt::term::_resource;	1311	goto &urxvt::term::_resource
582	}	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	}
583		1370
584	=item $rend = $term->rstyle ([$new_rstyle])	1371	=item $rend = $term->rstyle ([$new_rstyle])
585		1372
586	Return and optionally change the current rendition. Text that is output by	1373	Return and optionally change the current rendition. Text that is output by
587	the terminal application will use this style.	1374	the terminal application will use this style.
…		…
595		1382
596	=item ($row, $col) = $term->selection_beg ([$row, $col])	1383	=item ($row, $col) = $term->selection_beg ([$row, $col])
597		1384
598	=item ($row, $col) = $term->selection_end ([$row, $col])	1385	=item ($row, $col) = $term->selection_end ([$row, $col])
599		1386
600	Return the current values of the selection mark, begin or end positions,	1387	Return the current values of the selection mark, begin or end positions.
601	and optionally set them to new values.
602		1388
		1389	When arguments are given, then the selection coordinates are set to
		1390	C<$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
603	=item $success = $term->selection_grab ($eventtime)	1404	=item $success = $term->selection_grab ($eventtime[, $clipboard])
604		1405
605	Try to request the primary selection from the server (for example, as set	1406	Try to acquire ownership of the primary (clipboard if C<$clipboard> is
606	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.
607		1410
608	=item $oldtext = $term->selection ([$newtext])	1411	=item $oldtext = $term->selection ([$newtext, $clipboard])
609		1412
610	Return the current selection text and optionally replace it by C<$newtext>.	1413	Return the current selection (clipboard if C<$clipboard> is true) text
		1414	and optionally replace it by C<$newtext>.
611		1415
		1416	=item $term->selection_clear ([$clipboard])
		1417
		1418	Revoke ownership of the primary (clipboard if C<$clipboard> is true) selection.
		1419
612	#=item $term->overlay ($x, $y, $text)	1420	=item $term->overlay_simple ($x, $y, $text)
613	#	1421
614	#Create a simple multi-line overlay box. See the next method for details.	1422	Create a simple multi-line overlay box. See the next method for details.
615	#	1423
616	#=cut	1424	=cut
617	#	1425
618	#sub urxvt::term::scr_overlay {	1426	sub overlay_simple {
619	# my ($self, $x, $y, $text) = @_;	1427	my ($self, $x, $y, $text) = @_;
620	#	1428
621	# my @lines = split /\n/, $text;	1429	my @lines = split /\n/, $text;
622	#	1430
623	# my $w = 0;	1431	my $w = List::Util::max map $self->strwidth ($_), @lines;
624	# for (map $self->strwidth ($_), @lines) {	1432
625	# $w = $_ if $w < $_;
626	# }
627	#
628	# $self->scr_overlay_new ($x, $y, $w, scalar @lines);	1433	my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
629	# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;	1434	$overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
630	#}	1435
		1436	$overlay
		1437	}
631		1438
632	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])	1439	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
633		1440
634	Create a new (empty) overlay at the given position with the given	1441	Create a new (empty) overlay at the given position with the given
635	width/height. C<$rstyle> defines the initial rendition style	1442	width/height. C<$rstyle> defines the initial rendition style
…		…
646		1453
647	The methods currently supported on C<urxvt::overlay> objects are:	1454	The methods currently supported on C<urxvt::overlay> objects are:
648		1455
649	=over 4	1456	=over 4
650		1457
651	=item $overlay->set ($x, $y, $text, $rend)	1458	=item $overlay->set ($x, $y, $text[, $rend])
652		1459
653	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts	1460	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts
654	text in rxvt-unicode's special encoding and an array of rendition values	1461	text in rxvt-unicode's special encoding and an array of rendition values
655	at a specific position inside the overlay.	1462	at a specific position inside the overlay.
656		1463
		1464	If C<$rend> is missing, then the rendition will not be changed.
		1465
657	=item $overlay->hide	1466	=item $overlay->hide
658		1467
659	If visible, hide the overlay, but do not destroy it.	1468	If visible, hide the overlay, but do not destroy it.
660		1469
661	=item $overlay->show	1470	=item $overlay->show
662		1471
663	If hidden, display the overlay again.	1472	If hidden, display the overlay again.
664		1473
665	=back	1474	=back
		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	}
666		1502
667	=item $cellwidth = $term->strwidth ($string)	1503	=item $cellwidth = $term->strwidth ($string)
668		1504
669	Returns the number of screen-cells this string would need. Correctly	1505	Returns the number of screen-cells this string would need. Correctly
670	accounts for wide and combining characters.	1506	accounts for wide and combining characters.
…		…
675		1511
676	=item $string = $term->locale_decode ($octets)	1512	=item $string = $term->locale_decode ($octets)
677		1513
678	Convert the given locale-encoded octets into a perl string.	1514	Convert the given locale-encoded octets into a perl string.
679		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
680	=item $term->scr_add_lines ($string)	1533	=item $term->scr_add_lines ($string)
681		1534
682	Write the given text string to the screen, as if output by the application	1535	Write the given text string to the screen, as if output by the application
683	running inside the terminal. It may not contain command sequences (escape	1536	running inside the terminal. It may not contain command sequences (escape
684	codes), but is free to use line feeds, carriage returns and tabs. The	1537	codes - see C<cmd_parse> for that), but is free to use line feeds,
685	string is a normal text string, not in locale-dependent encoding.	1538	carriage returns and tabs. The string is a normal text string, not in
		1539	locale-dependent encoding.
686		1540
687	Normally its not a good idea to use this function, as programs might be	1541	Normally its not a good idea to use this function, as programs might be
688	confused by changes in cursor position or scrolling. Its useful inside a	1542	confused by changes in cursor position or scrolling. Its useful inside a
689	C<on_add_lines> hook, though.	1543	C<on_add_lines> hook, though.
690		1544
		1545	=item $term->scr_change_screen ($screen)
		1546
		1547	Switch to given screen - 0 primary, 1 secondary.
		1548
691	=item $term->cmd_parse ($octets)	1549	=item $term->cmd_parse ($octets)
692		1550
693	Similar to C<scr_add_lines>, but the argument must be in the	1551	Similar to C<scr_add_lines>, but the argument must be in the
694	locale-specific encoding of the terminal and can contain command sequences	1552	locale-specific encoding of the terminal and can contain command sequences
695	(escape codes) that will be interpreted.	1553	(escape codes) that will be interpreted.
696		1554
697	=item $term->tt_write ($octets)	1555	=item $term->tt_write ($octets)
698		1556
699	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
700	pass characters instead of octets, you should convert your strings first	1559	characters instead of octets, you should convert your strings first to the
701	to the locale-specific encoding using C<< $term->locale_encode >>.	1560	locale-specific encoding using C<< $term->locale_encode >>.
		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.
702		1587
703	=item $windowid = $term->parent	1588	=item $windowid = $term->parent
704		1589
705	Return the window id of the toplevel window.	1590	Return the window id of the toplevel window.
706		1591
707	=item $windowid = $term->vt	1592	=item $windowid = $term->vt
708		1593
709	Return the window id of the terminal window.	1594	Return the window id of the terminal window.
710		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
711	=item $window_width = $term->width	1617	=item $window_width = $term->width
712		1618
713	=item $window_height = $term->height	1619	=item $window_height = $term->height
714		1620
715	=item $font_width = $term->fwidth	1621	=item $font_width = $term->fwidth
…		…
728		1634
729	=item $max_scrollback = $term->saveLines	1635	=item $max_scrollback = $term->saveLines
730		1636
731	=item $nrow_plus_saveLines = $term->total_rows	1637	=item $nrow_plus_saveLines = $term->total_rows
732		1638
733	=item $lines_in_scrollback = $term->nsaved	1639	=item $topmost_scrollback_row = $term->top_row
734		1640
735	Return various integers describing terminal characteristics.	1641	Return various integers describing terminal characteristics.
736		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
		1651	=item $env = $term->env
		1652
		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.
		1687
737	=item $view_start = $term->view_start ([$newvalue])	1688	=item $view_start = $term->view_start ([$newvalue])
738		1689
739	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
740	C<0>, which displays the normal terminal contents. Larger values scroll	1691	C<0>, which displays the normal terminal contents. Lower values scroll
741	this many lines into the scrollback buffer.	1692	this many lines into the scrollback buffer.
742		1693
743	=item $term->want_refresh	1694	=item $term->want_refresh
744		1695
745	Requests a screen refresh. At the next opportunity, rxvt-unicode will	1696	Requests a screen refresh. At the next opportunity, rxvt-unicode will
…		…
748		1699
749	Used after changing terminal contents to display them.	1700	Used after changing terminal contents to display them.
750		1701
751	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])	1702	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
752		1703
753	Returns the text of the entire row with number C<$row_number>. Row C<0>	1704	Returns the text of the entire row with number C<$row_number>. Row C<< $term->top_row >>
754	is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost	1705	is the topmost terminal line, row C<< $term->nrow-1 >> is the bottommost
755	terminal line. The scrollback buffer starts at line C<-1> and extends to
756	line C<< -$term->nsaved >>. Nothing will be returned if a nonexistent line	1706	terminal line. Nothing will be returned if a nonexistent line
757	is requested.	1707	is requested.
758		1708
759	If C<$new_text> is specified, it will replace characters in the current	1709	If C<$new_text> is specified, it will replace characters in the current
760	line, starting at column C<$start_col> (default C<0>), which is useful	1710	line, starting at column C<$start_col> (default C<0>), which is useful
761	to replace only parts of a line. The font index in the rendition will	1711	to replace only parts of a line. The font index in the rendition will
762	automatically be updated.	1712	automatically be updated.
763		1713
764	C<$text> is in a special encoding: tabs and wide characters that use more	1714	C<$text> is in a special encoding: tabs and wide characters that use more
765	than one cell when displayed are padded with urxvt::NOCHAR characters	1715	than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
766	(C<chr 65535>). Characters with combining characters and other characters	1716	characters. Characters with combining characters and other characters that
767	that do not fit into the normal tetx encoding will be replaced with	1717	do not fit into the normal text encoding will be replaced with characters
768	characters in the private use area.	1718	in the private use area.
769		1719
770	You have to obey this encoding when changing text. The advantage is	1720	You have to obey this encoding when changing text. The advantage is
771	that C<substr> and similar functions work on screen cells and not on	1721	that C<substr> and similar functions work on screen cells and not on
772	characters.	1722	characters.
773		1723
…		…
824	Return the row number of the first/last row of the line, respectively.	1774	Return the row number of the first/last row of the line, respectively.
825		1775
826	=item $offset = $line->offset_of ($row, $col)	1776	=item $offset = $line->offset_of ($row, $col)
827		1777
828	Returns the character offset of the given row|col pair within the logical	1778	Returns the character offset of the given row|col pair within the logical
829	line.	1779	line. Works for rows outside the line, too, and returns corresponding
		1780	offsets outside the string.
830		1781
831	=item ($row, $col) = $line->coord_of ($offset)	1782	=item ($row, $col) = $line->coord_of ($offset)
832		1783
833	Translates a string offset into terminal coordinates again.	1784	Translates a string offset into terminal coordinates again.
834		1785
835	=back	1786	=back
836		1787
837	=cut	1788	=cut
838		1789
839	sub urxvt::term::line {	1790	sub line {
840	my ($self, $row) = @_;	1791	my ($self, $row) = @_;
841		1792
842	my $maxrow = $self->nrow - 1;	1793	my $maxrow = $self->nrow - 1;
843		1794
844	my ($beg, $end) = ($row, $row);	1795	my ($beg, $end) = ($row, $row);
…		…
856	}	1807	}
857		1808
858	sub urxvt::line::t {	1809	sub urxvt::line::t {
859	my ($self) = @_;	1810	my ($self) = @_;
860		1811
861	if (@_ > 1)	1812	if (@_ > 1) {
862	{
863	$self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})	1813	$self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
864	for $self->{beg} .. $self->{end};	1814	for $self->{beg} .. $self->{end};
865	}	1815	}
866		1816
867	defined wantarray &&	1817	defined wantarray &&
868	substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),	1818	substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),
869	0, $self->{len}	1819	0, $self->{len}
870	}	1820	}
871		1821
872	sub urxvt::line::r {	1822	sub urxvt::line::r {
873	my ($self) = @_;	1823	my ($self) = @_;
874		1824
875	if (@_ > 1)	1825	if (@_ > 1) {
876	{
877	$self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})	1826	$self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
878	for $self->{beg} .. $self->{end};	1827	for $self->{beg} .. $self->{end};
879	}	1828	}
880		1829
881	if (defined wantarray) {	1830	if (defined wantarray) {
882	my $rend = [	1831	my $rend = [
883	map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}	1832	map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}
884	];	1833	];
…		…
908	$offset / $self->{ncol} + $self->{beg},	1857	$offset / $self->{ncol} + $self->{beg},
909	$offset % $self->{ncol}	1858	$offset % $self->{ncol}
910	)	1859	)
911	}	1860	}
912		1861
913	=item ($row, $col) = $line->coord_of ($offset)
914	=item $text = $term->special_encode $string	1862	=item $text = $term->special_encode $string
915		1863
916	Converts a perl string into the special encoding used by rxvt-unicode,	1864	Converts a perl string into the special encoding used by rxvt-unicode,
917	where one character corresponds to one screen cell. See	1865	where one character corresponds to one screen cell. See
918	C<< $term->ROW_t >> for details.	1866	C<< $term->ROW_t >> for details.
919		1867
920	=item $string = $term->special_decode $text	1868	=item $string = $term->special_decode $text
921		1869
922	Converts rxvt-unicodes text reprsentation into a perl string. See	1870	Converts rxvt-unicodes text representation into a perl string. See
923	C<< $term->ROW_t >> for details.	1871	C<< $term->ROW_t >> for details.
924		1872
		1873	=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
		1874
		1875	=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
		1876
		1877	Register/unregister a synchronous button grab. See the XGrabButton
		1878	manpage.
		1879
		1880	=item $success = $term->grab ($eventtime[, $sync])
		1881
		1882	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
		1883	synchronous (C<$sync> is true). Also remembers the grab timestamp.
		1884
		1885	=item $term->allow_events_async
		1886
		1887	Calls XAllowEvents with AsyncBoth for the most recent grab.
		1888
		1889	=item $term->allow_events_sync
		1890
		1891	Calls XAllowEvents with SyncBoth for the most recent grab.
		1892
		1893	=item $term->allow_events_replay
		1894
		1895	Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
		1896	recent grab.
		1897
		1898	=item $term->ungrab
		1899
		1900	Calls XUngrabPointer and XUngrabKeyboard for the most recent grab. Is called automatically on
		1901	evaluation errors, as it is better to lose the grab in the error case as
		1902	the session.
		1903
		1904	=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
		1905
		1906	=item $atom_name = $term->XGetAtomName ($atom)
		1907
		1908	=item @atoms = $term->XListProperties ($window)
		1909
		1910	=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
		1911
		1912	=item $term->XChangeProperty ($window, $property, $type, $format, $octets)
		1913
		1914	=item $term->XDeleteProperty ($window, $property)
		1915
		1916	=item $window = $term->DefaultRootWindow
		1917
		1918	=item $term->XReparentWindow ($window, $parent, [$x, $y])
		1919
		1920	=item $term->XMapWindow ($window)
		1921
		1922	=item $term->XUnmapWindow ($window)
		1923
		1924	=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
		1925
		1926	=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
		1927
		1928	=item $term->XChangeInput ($window, $add_events[, $del_events])
		1929
		1930	=item $keysym = $term->XStringToKeysym ($string)
		1931
		1932	=item $string = $term->XKeysymToString ($keysym)
		1933
		1934	Various X or X-related functions. The C<$term> object only serves as
		1935	the source of the display, otherwise those functions map more-or-less
		1936	directly onto the X functions of the same name.
		1937
925	=back	1938	=back
		1939
		1940	=cut
		1941
		1942	package urxvt::popup;
		1943
		1944	=head2 The C<urxvt::popup> Class
		1945
		1946	=over 4
		1947
		1948	=cut
		1949
		1950	sub add_item {
		1951	my ($self, $item) = @_;
		1952
		1953	$item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal};
		1954	$item->{rend}{hover} = "\x1b[0;30;46m" unless exists $item->{rend}{hover};
		1955	$item->{rend}{active} = "\x1b[m" unless exists $item->{rend}{active};
		1956
		1957	$item->{render} ||= sub { $_[0]{text} };
		1958
		1959	push @{ $self->{item} }, $item;
		1960	}
		1961
		1962	=item $popup->add_title ($title)
		1963
		1964	Adds a non-clickable title to the popup.
		1965
		1966	=cut
		1967
		1968	sub add_title {
		1969	my ($self, $title) = @_;
		1970
		1971	$self->add_item ({
		1972	rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
		1973	text => $title,
		1974	activate => sub { },
		1975	});
		1976	}
		1977
		1978	=item $popup->add_separator ([$sepchr])
		1979
		1980	Creates a separator, optionally using the character given as C<$sepchr>.
		1981
		1982	=cut
		1983
		1984	sub add_separator {
		1985	my ($self, $sep) = @_;
		1986
		1987	$sep ||= "=";
		1988
		1989	$self->add_item ({
		1990	rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
		1991	text => "",
		1992	render => sub { $sep x $self->{term}->ncol },
		1993	activate => sub { },
		1994	});
		1995	}
		1996
		1997	=item $popup->add_button ($text, $cb)
		1998
		1999	Adds a clickable button to the popup. C<$cb> is called whenever it is
		2000	selected.
		2001
		2002	=cut
		2003
		2004	sub add_button {
		2005	my ($self, $text, $cb) = @_;
		2006
		2007	$self->add_item ({ type => "button", text => $text, activate => $cb});
		2008	}
		2009
		2010	=item $popup->add_toggle ($text, $initial_value, $cb)
		2011
		2012	Adds a toggle/checkbox item to the popup. The callback gets called
		2013	whenever it gets toggled, with a boolean indicating its new value as its
		2014	first argument.
		2015
		2016	=cut
		2017
		2018	sub add_toggle {
		2019	my ($self, $text, $value, $cb) = @_;
		2020
		2021	my $item; $item = {
		2022	type => "button",
		2023	text => " $text",
		2024	value => $value,
		2025	render => sub { ($_[0]{value} ? "* " : " ") . $text },
		2026	activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
		2027	};
		2028
		2029	$self->add_item ($item);
		2030	}
		2031
		2032	=item $popup->show
		2033
		2034	Displays the popup (which is initially hidden).
		2035
		2036	=cut
		2037
		2038	sub show {
		2039	my ($self) = @_;
		2040
		2041	local $urxvt::popup::self = $self;
		2042
		2043	my $env = $self->{term}->env;
		2044	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
		2045	delete $env->{LC_ALL};
		2046	$env->{LC_CTYPE} = $self->{term}->locale;
		2047
		2048	my $term = urxvt::term->new (
		2049	$env, "popup",
		2050	"--perl-lib" => "", "--perl-ext-common" => "",
		2051	"-pty-fd" => -1, "-sl" => 0,
		2052	"-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
		2053	"--transient-for" => $self->{term}->parent,
		2054	"-display" => $self->{term}->display_id,
		2055	"-pe" => "urxvt-popup",
		2056	) or die "unable to create popup window\n";
		2057
		2058	unless (delete $term->{urxvt_popup_init_done}) {
		2059	$term->ungrab;
		2060	$term->destroy;
		2061	die "unable to initialise popup window\n";
		2062	}
		2063	}
		2064
		2065	sub DESTROY {
		2066	my ($self) = @_;
		2067
		2068	delete $self->{term}{_destroy}{$self};
		2069	$self->{term}->ungrab;
		2070	}
		2071
		2072	=back
		2073
		2074	=cut
		2075
		2076	package urxvt::watcher;
926		2077
927	=head2 The C<urxvt::timer> Class	2078	=head2 The C<urxvt::timer> Class
928		2079
929	This class implements timer watchers/events. Time is represented as a	2080	This class implements timer watchers/events. Time is represented as a
930	fractional number of seconds since the epoch. Example:	2081	fractional number of seconds since the epoch. Example:
…		…
934	->new	2085	->new
935	->interval (1)	2086	->interval (1)
936	->cb (sub {	2087	->cb (sub {
937	$term->{overlay}->set (0, 0,	2088	$term->{overlay}->set (0, 0,
938	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);	2089	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
939	});	2090	});
940		2091
941	=over 4	2092	=over 4
942		2093
943	=item $timer = new urxvt::timer	2094	=item $timer = new urxvt::timer
944		2095
…		…
947		2098
948	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })	2099	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })
949		2100
950	Set the callback to be called when the timer triggers.	2101	Set the callback to be called when the timer triggers.
951		2102
952	=item $tstamp = $timer->at
953
954	Return the time this watcher will fire next.
955
956	=item $timer = $timer->set ($tstamp)	2103	=item $timer = $timer->set ($tstamp[, $interval])
957		2104
958	Set the time the event is generated to $tstamp.	2105	Set the time the event is generated to $tstamp (and optionally specifies a
		2106	new $interval).
959		2107
960	=item $timer = $timer->interval ($interval)	2108	=item $timer = $timer->interval ($interval)
961		2109
962	Normally (and when C<$interval> is C<0>), the timer will automatically	2110	By default (and when C<$interval> is C<0>), the timer will automatically
963	stop after it has fired once. If C<$interval> is non-zero, then the timer	2111	stop after it has fired once. If C<$interval> is non-zero, then the timer
964	is automatically rescheduled at the given intervals.	2112	is automatically rescheduled at the given intervals.
965		2113
966	=item $timer = $timer->start	2114	=item $timer = $timer->start
967		2115
968	Start the timer.	2116	Start the timer.
969		2117
970	=item $timer = $timer->start ($tstamp)	2118	=item $timer = $timer->start ($tstamp[, $interval])
971		2119
972	Set the event trigger time to C<$tstamp> and start the timer.	2120	Set the event trigger time to C<$tstamp> and start the timer. Optionally
		2121	also replaces the interval.
		2122
		2123	=item $timer = $timer->after ($delay[, $interval])
		2124
		2125	Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
973		2126
974	=item $timer = $timer->stop	2127	=item $timer = $timer->stop
975		2128
976	Stop the timer.	2129	Stop the timer.
977		2130
…		…
983		2136
984	$term->{socket} = ...	2137	$term->{socket} = ...
985	$term->{iow} = urxvt::iow	2138	$term->{iow} = urxvt::iow
986	->new	2139	->new
987	->fd (fileno $term->{socket})	2140	->fd (fileno $term->{socket})
988	->events (1) # wait for read data	2141	->events (urxvt::EV_READ)
989	->start	2142	->start
990	->cb (sub {	2143	->cb (sub {
991	my ($iow, $revents) = @_;	2144	my ($iow, $revents) = @_;
992	# $revents must be 1 here, no need to check	2145	# $revents must be 1 here, no need to check
993	sysread $term->{socket}, my $buf, 8192	2146	sysread $term->{socket}, my $buf, 8192
…		…
1006	Set the callback to be called when io events are triggered. C<$reventmask>	2159	Set the callback to be called when io events are triggered. C<$reventmask>
1007	is a bitset as described in the C<events> method.	2160	is a bitset as described in the C<events> method.
1008		2161
1009	=item $iow = $iow->fd ($fd)	2162	=item $iow = $iow->fd ($fd)
1010		2163
1011	Set the filedescriptor (not handle) to watch.	2164	Set the file descriptor (not handle) to watch.
1012		2165
1013	=item $iow = $iow->events ($eventmask)	2166	=item $iow = $iow->events ($eventmask)
1014		2167
1015	Set the event mask to watch. Bit #0 (value C<1>) enables watching for read	2168	Set the event mask to watch. The only allowed values are
1016	data, Bit #1 (value C<2>) enables watching for write data.	2169	C<urxvt::EV_READ> and C<urxvt::EV_WRITE>, which might be ORed
		2170	together, or C<urxvt::EV_NONE>.
1017		2171
1018	=item $iow = $iow->start	2172	=item $iow = $iow->start
1019		2173
1020	Start watching for requested events on the given handle.	2174	Start watching for requested events on the given handle.
1021		2175
1022	=item $iow = $iow->stop	2176	=item $iow = $iow->stop
1023		2177
1024	Stop watching for events on the given filehandle.	2178	Stop watching for events on the given file handle.
		2179
		2180	=back
		2181
		2182	=head2 The C<urxvt::iw> Class
		2183
		2184	This class implements idle watchers, that get called automatically when
		2185	the process is idle. They should return as fast as possible, after doing
		2186	some useful work.
		2187
		2188	=over 4
		2189
		2190	=item $iw = new urxvt::iw
		2191
		2192	Create a new idle watcher object in stopped state.
		2193
		2194	=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
		2195
		2196	Set the callback to be called when the watcher triggers.
		2197
		2198	=item $timer = $timer->start
		2199
		2200	Start the watcher.
		2201
		2202	=item $timer = $timer->stop
		2203
		2204	Stop the watcher.
		2205
		2206	=back
		2207
		2208	=head2 The C<urxvt::pw> Class
		2209
		2210	This class implements process watchers. They create an event whenever a
		2211	process exits, after which they stop automatically.
		2212
		2213	my $pid = fork;
		2214	...
		2215	$term->{pw} = urxvt::pw
		2216	->new
		2217	->start ($pid)
		2218	->cb (sub {
		2219	my ($pw, $exit_status) = @_;
		2220	...
		2221	});
		2222
		2223	=over 4
		2224
		2225	=item $pw = new urxvt::pw
		2226
		2227	Create a new process watcher in stopped state.
		2228
		2229	=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
		2230
		2231	Set the callback to be called when the timer triggers.
		2232
		2233	=item $pw = $timer->start ($pid)
		2234
		2235	Tells the watcher to start watching for process C<$pid>.
		2236
		2237	=item $pw = $pw->stop
		2238
		2239	Stop the watcher.
1025		2240
1026	=back	2241	=back
1027		2242
1028	=head1 ENVIRONMENT	2243	=head1 ENVIRONMENT
1029		2244
…		…
1032	This variable controls the verbosity level of the perl extension. Higher	2247	This variable controls the verbosity level of the perl extension. Higher
1033	numbers indicate more verbose output.	2248	numbers indicate more verbose output.
1034		2249
1035	=over 4	2250	=over 4
1036		2251
1037	=item =0 - only fatal messages	2252	=item == 0 - fatal messages
1038		2253
1039	=item =3 - script loading and management	2254	=item >= 3 - script loading and management
1040		2255
1041	=item =10 - all events received	2256	=item >=10 - all called hooks
		2257
		2258	=item >=11 - hook return values
1042		2259
1043	=back	2260	=back
1044		2261
1045	=head1 AUTHOR	2262	=head1 AUTHOR
1046		2263
1047	Marc Lehmann <pcg@goof.com>	2264	Marc Lehmann <schmorp@schmorp.de>
1048	http://software.schmorp.de/pkg/rxvt-unicode	2265	http://software.schmorp.de/pkg/rxvt-unicode
1049		2266
1050	=cut	2267	=cut
1051		2268
1052	1	2269	1
		2270
		2271	# vim: sw=3:

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