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Revision 1.42 by root, Fri Jan 6 21:06:09 2006 UTC vs.
Revision 1.238 by root, Sun May 18 18:15:04 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 that add command line parameters or resources on their own are
45	the user extends selections (double-click). Right now, it tries to select	49	loaded automatically when used.
46	urls and complete shell-quoted arguments, which is very convenient, too,
47	if your F<ls> supports C<--quoting-style=shell>.
48		50
49	It also offers the following bindable event:	51	=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		52
83	=head2 General API Considerations	53	=head2 General API Considerations
84		54
85	All objects (such as terminals, time watchers etc.) are typical	55	All objects (such as terminals, time watchers etc.) are typical
86	reference-to-hash objects. The hash can be used to store anything you	56	reference-to-hash objects. The hash can be used to store anything you
…		…
98		68
99	=over 4	69	=over 4
100		70
101	=item $text	71	=item $text
102		72
103	Rxvt-unicodes special way of encoding text, where one "unicode" character	73	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.	74	always represents one screen cell. See L<ROW_t> for a discussion of this format.
105		75
106	=item $string	76	=item $string
107		77
108	A perl text string, with an emphasis on I<text>. It can store all unicode	78	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	79	characters and is to be distinguished with text encoded in a specific
…		…
112	=item $octets	82	=item $octets
113		83
114	Either binary data or - more common - a text string encoded in a	84	Either binary data or - more common - a text string encoded in a
115	locale-specific way.	85	locale-specific way.
116		86
		87	=item $keysym
		88
		89	an integer that is a valid X11 keysym code. You can convert a string
		90	into a keysym and viceversa by using C<XStringToKeysym> and
		91	C<XKeysymToString>.
		92
117	=back	93	=back
118		94
		95	=head2 Extension Objects
		96
		97	Every perl extension is a perl class. A separate perl object is created
		98	for each terminal, and each terminal has its own set of extension objects,
		99	which are passed as the first parameter to hooks. So extensions can use
		100	their C<$self> object without having to think about clashes with other
		101	extensions or other terminals, with the exception of methods and members
		102	that begin with an underscore character C<_>: these are reserved for
		103	internal use.
		104
		105	Although it isn't a C<urxvt::term> object, you can call all methods of the
		106	C<urxvt::term> class on this object.
		107
		108	Additional methods only supported for extension objects are described in
		109	the C<urxvt::extension> section below.
		110
119	=head2 Hooks	111	=head2 Hooks
120		112
121	The following subroutines can be declared in loaded scripts, and will be	113	The following subroutines can be declared in extension files, and will be
122	called whenever the relevant event happens.	114	called whenever the relevant event happens.
123		115
124	The first argument passed to them is an object private to each terminal	116	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	117	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		118
130	All of them must return a boolean value. If it is true, then the event	119	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,	120	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.	121	relevant action might not be carried out by the C++ code.
133		122
134	When in doubt, return a false value (preferably C<()>).	123	I<< When in doubt, return a false value (preferably C<()>). >>
135		124
136	=over 4	125	=over 4
137		126
138	=item on_init $term	127	=item on_init $term
139		128
140	Called after a new terminal object has been initialized, but before	129	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	130	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	131	call or deliver senseless data, as terminal size and other characteristics
143	have not yet been determined. You can safely query and change resources,	132	have not yet been determined. You can safely query and change resources
144	though.	133	and options, though. For many purposes the C<on_start> hook is a better
		134	place.
		135
		136	=item on_start $term
		137
		138	Called at the very end of initialisation of a new terminal, just before
		139	trying to map (display) the toplevel and returning to the main loop.
		140
		141	=item on_destroy $term
		142
		143	Called whenever something tries to destroy terminal, when the terminal is
		144	still fully functional (not for long, though).
145		145
146	=item on_reset $term	146	=item on_reset $term
147		147
148	Called after the screen is "reset" for any reason, such as resizing or	148	Called after the screen is "reset" for any reason, such as resizing or
149	control sequences. Here is where you can react on changes to size-related	149	control sequences. Here is where you can react on changes to size-related
150	variables.	150	variables.
151		151
152	=item on_start $term	152	=item on_child_start $term, $pid
153		153
154	Called at the very end of initialisation of a new terminal, just before	154	Called just after the child process has been C<fork>ed.
155	returning to the mainloop.	155
		156	=item on_child_exit $term, $status
		157
		158	Called just after the child process has exited. C<$status> is the status
		159	from C<waitpid>.
156		160
157	=item on_sel_make $term, $eventtime	161	=item on_sel_make $term, $eventtime
158		162
159	Called whenever a selection has been made by the user, but before the	163	Called whenever a selection has been made by the user, but before the
160	selection text is copied, so changes to the beginning, end or type of the	164	selection text is copied, so changes to the beginning, end or type of the
…		…
167		171
168	Called whenever a selection has been copied, but before the selection is	172	Called whenever a selection has been copied, but before the selection is
169	requested from the server. The selection text can be queried and changed	173	requested from the server. The selection text can be queried and changed
170	by calling C<< $term->selection >>.	174	by calling C<< $term->selection >>.
171		175
172	Returning a true value aborts selection grabbing. It will still be hilighted.	176	Returning a true value aborts selection grabbing. It will still be highlighted.
173		177
174	=item on_sel_extend $term	178	=item on_sel_extend $term
175		179
176	Called whenever the user tries to extend the selection (e.g. with a double	180	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	181	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	182	should extend the selection itself and return true to suppress the built-in
179	processing.	183	processing. This can happen multiple times, as long as the callback
		184	returns true, it will be called on every further click by the user and is
		185	supposed to enlarge the selection more and more, if possible.
180		186
181	See the F<selection> example extension.	187	See the F<selection> example extension.
182		188
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	189	=item on_view_change $term, $offset
194		190
195	Called whenever the view offset changes, i..e the user or program	191	Called whenever the view offset changes, i.e. the user or program
196	scrolls. Offset C<0> means display the normal terminal, positive values	192	scrolls. Offset C<0> means display the normal terminal, positive values
197	show this many lines of scrollback.	193	show this many lines of scrollback.
198		194
199	=item on_scroll_back $term, $lines, $saved	195	=item on_scroll_back $term, $lines, $saved
200		196
…		…
204		200
205	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,	201	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
206	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total	202	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
207	number of lines that will be in the scrollback buffer.	203	number of lines that will be in the scrollback buffer.
208		204
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	205	=item on_osc_seq $term, $op, $args, $resp
		206
		207	Called on every OSC sequence and can be used to suppress it or modify its
		208	behaviour. The default should be to return an empty list. A true value
		209	suppresses execution of the request completely. Make sure you don't get
		210	confused by recursive invocations when you output an OSC sequence within
		211	this callback.
		212
		213	C<on_osc_seq_perl> should be used for new behaviour.
		214
		215	=item on_osc_seq_perl $term, $args, $resp
214		216
215	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =	217	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
216	operating system command) is processed. Cursor position and other state	218	operating system command) is processed. Cursor position and other state
217	information is up-to-date when this happens. For interoperability, the	219	information is up-to-date when this happens. For interoperability, the
218	string should start with the extension name and a colon, to distinguish	220	string should start with the extension name (sans -osc) and a semicolon,
219	it from commands for other extensions, and this might be enforced in the	221	to distinguish it from commands for other extensions, and this might be
220	future.	222	enforced in the future.
		223
		224	For example, C<overlay-osc> uses this:
		225
		226	sub on_osc_seq_perl {
		227	my ($self, $osc, $resp) = @_;
		228
		229	return unless $osc =~ s/^overlay;//;
		230
		231	... process remaining $osc string
		232	}
221		233
222	Be careful not ever to trust (in a security sense) the data you receive,	234	Be careful not ever to trust (in a security sense) the data you receive,
223	as its source can not easily be controleld (e-mail content, messages from	235	as its source can not easily be controlled (e-mail content, messages from
224	other users on the same system etc.).	236	other users on the same system etc.).
		237
		238	For responses, C<$resp> contains the end-of-args separator used by the
		239	sender.
225		240
226	=item on_add_lines $term, $string	241	=item on_add_lines $term, $string
227		242
228	Called whenever text is about to be output, with the text as argument. You	243	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	244	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	245	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	246	might be very slow, however, as your hook is called for B<all> text being
232	output.	247	output.
233		248
		249	=item on_tt_write $term, $octets
		250
		251	Called whenever some data is written to the tty/pty and can be used to
		252	suppress or filter tty input.
		253
		254	=item on_tt_paste $term, $octets
		255
		256	Called whenever text is about to be pasted, with the text as argument. You
		257	can filter/change and paste the text yourself by returning a true value
		258	and calling C<< $term->tt_paste >> yourself. C<$octets> is
		259	locale-encoded.
		260
234	=item on_line_update $term, $row	261	=item on_line_update $term, $row
235		262
236	Called whenever a line was updated or changed. Can be used to filter	263	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	264	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,	265	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	272	later with the already-modified line (e.g. if unrelated parts change), so
246	you cannot just toggle rendition bits, but only set them.	273	you cannot just toggle rendition bits, but only set them.
247		274
248	=item on_refresh_begin $term	275	=item on_refresh_begin $term
249		276
250	Called just before the screen gets redrawn. Can be used for overlay	277	Called just before the screen gets redrawn. Can be used for overlay or
251	or similar effects by modify terminal contents in refresh_begin, and	278	similar effects by modifying the terminal contents in refresh_begin, and
252	restoring them in refresh_end. The built-in overlay and selection display	279	restoring them in refresh_end. The built-in overlay and selection display
253	code is run after this hook, and takes precedence.	280	code is run after this hook, and takes precedence.
254		281
255	=item on_refresh_end $term	282	=item on_refresh_end $term
256		283
257	Called just after the screen gets redrawn. See C<on_refresh_begin>.	284	Called just after the screen gets redrawn. See C<on_refresh_begin>.
258		285
259	=item on_keyboard_command $term, $string	286	=item on_user_command $term, $string *DEPRECATED*
260		287
261	Called whenever the user presses a key combination that has a	288	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>	289	a C<perl:string> action bound to a key, see description of the B<keysym>
263	resource in the @@RXVT_NAME@@(1) manpage).	290	resource in the urxvt(1) manpage).
264		291
		292	The event is simply the action string. This interface is going away in
		293	preference to the C<on_action> hook.
		294
		295	=item on_resize_all_windows $term, $new_width, $new_height
		296
		297	Called just after the new window size has been calculated, but before
		298	windows are actually being resized or hints are being set. If this hook
		299	returns a true value, setting of the window hints is being skipped.
		300
		301	=item on_x_event $term, $event
		302
		303	Called on every X event received on the vt window (and possibly other
		304	windows). Should only be used as a last resort. Most event structure
		305	members are not passed.
		306
		307	=item on_root_event $term, $event
		308
		309	Like C<on_x_event>, but is called for events on the root window.
		310
		311	=item on_focus_in $term
		312
		313	Called whenever the window gets the keyboard focus, before rxvt-unicode
		314	does focus in processing.
		315
		316	=item on_focus_out $term
		317
		318	Called whenever the window loses keyboard focus, before rxvt-unicode does
		319	focus out processing.
		320
		321	=item on_configure_notify $term, $event
		322
		323	=item on_property_notify $term, $event
		324
265	=item on_key_press $term, $event, $octets	325	=item on_key_press $term, $event, $keysym, $octets
266		326
267	=item on_key_release $term, $event	327	=item on_key_release $term, $event, $keysym
268		328
269	=item on_button_press $term, $event	329	=item on_button_press $term, $event
270		330
271	=item on_button_release $term, $event	331	=item on_button_release $term, $event
272		332
273	=item on_motion_notify $term, $event	333	=item on_motion_notify $term, $event
274		334
		335	=item on_map_notify $term, $event
		336
		337	=item on_unmap_notify $term, $event
		338
275	Called whenever the corresponding X event is received for the terminal If	339	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.	340	the hook returns true, then the event will be ignored by rxvt-unicode.
277		341
278	The event is a hash with most values as named by Xlib (see the XEvent	342	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	343	manpage), with the additional members C<row> and C<col>, which are the
280	and column under the mouse cursor.	344	(real, not screen-based) row and column under the mouse cursor.
281		345
282	C<on_key_press> additionally receives the string rxvt-unicode would	346	C<on_key_press> additionally receives the string rxvt-unicode would
283	output, if any, in locale-specific encoding.	347	output, if any, in locale-specific encoding.
284		348
285	subwindow.	349	=item on_client_message $term, $event
		350
		351	=item on_wm_protocols $term, $event
		352
		353	=item on_wm_delete_window $term, $event
		354
		355	Called when various types of ClientMessage events are received (all with
		356	format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
		357
		358	=item on_bell $term
		359
		360	Called on receipt of a bell character.
286		361
287	=back	362	=back
288		363
		364	=cut
		365
		366	package urxvt;
		367
		368	use utf8;
		369	use strict 'vars';
		370	use Carp ();
		371	use Scalar::Util ();
		372	use List::Util ();
		373
		374	our $VERSION = 1;
		375	our $TERM;
		376	our @TERM_INIT; # should go, prevents async I/O etc.
		377	our @TERM_EXT; # should go, prevents async I/O etc.
		378	our @HOOKNAME;
		379	our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
		380	our %OPTION;
		381
		382	our $LIBDIR;
		383	our $RESNAME;
		384	our $RESCLASS;
		385	our $RXVTNAME;
		386
		387	our $NOCHAR = chr 0xffff;
		388
289	=head2 Variables in the C<urxvt> Package	389	=head2 Variables in the C<urxvt> Package
290		390
291	=over 4	391	=over 4
292		392
		393	=item $urxvt::LIBDIR
		394
		395	The rxvt-unicode library directory, where, among other things, the perl
		396	modules and scripts are stored.
		397
		398	=item $urxvt::RESCLASS, $urxvt::RESCLASS
		399
		400	The resource class and name rxvt-unicode uses to look up X resources.
		401
		402	=item $urxvt::RXVTNAME
		403
		404	The basename of the installed binaries, usually C<urxvt>.
		405
293	=item $urxvt::TERM	406	=item $urxvt::TERM
294		407
295	The current terminal. Whenever a callback/Hook is bein executed, this	408	The current terminal. This variable stores the current C<urxvt::term>
296	variable stores the current C<urxvt::term> object.	409	object, whenever a callback/hook is executing.
		410
		411	=item @urxvt::TERM_INIT
		412
		413	All code references in this array will be called as methods of the next newly
		414	created C<urxvt::term> object (during the C<on_init> phase). The array
		415	gets cleared before the code references that were in it are being executed,
		416	so references can push themselves onto it again if they so desire.
		417
		418	This complements to the perl-eval command line option, but gets executed
		419	first.
		420
		421	=item @urxvt::TERM_EXT
		422
		423	Works similar to C<@TERM_INIT>, but contains perl package/class names, which
		424	get registered as normal extensions after calling the hooks in C<@TERM_INIT>
		425	but before other extensions. Gets cleared just like C<@TERM_INIT>.
297		426
298	=back	427	=back
299		428
300	=head2 Functions in the C<urxvt> Package	429	=head2 Functions in the C<urxvt> Package
301		430
302	=over 4	431	=over 4
303		432
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	433	=item urxvt::fatal $errormessage
313		434
314	Fatally aborts execution with the given error message. Avoid at all	435	Fatally aborts execution with the given error message (which should
315	costs! The only time this is acceptable is when the terminal process	436	include a trailing newline). Avoid at all costs! The only time this
316	starts up.	437	is acceptable (and useful) is in the init hook, where it prevents the
		438	terminal from starting up.
317		439
318	=item urxvt::warn $string	440	=item urxvt::warn $string
319		441
320	Calls C<rxvt_warn> with the given string which should not include a	442	Calls C<rxvt_warn> with the given string which should include a trailing
321	newline. The module also overwrites the C<warn> builtin with a function	443	newline. The module also overwrites the C<warn> builtin with a function
322	that calls this function.	444	that calls this function.
323		445
324	Using this function has the advantage that its output ends up in the	446	Using this function has the advantage that its output ends up in the
325	correct place, e.g. on stderr of the connecting urxvtc client.	447	correct place, e.g. on stderr of the connecting urxvtc client.
326		448
		449	Messages have a size limit of 1023 bytes currently.
		450
		451	=item @terms = urxvt::termlist
		452
		453	Returns all urxvt::term objects that exist in this process, regardless of
		454	whether they are started, being destroyed etc., so be careful. Only term
		455	objects that have perl extensions attached will be returned (because there
		456	is no urxvt::term object associated with others).
		457
327	=item $time = urxvt::NOW	458	=item $time = urxvt::NOW
328		459
329	Returns the "current time" (as per the event loop).	460	Returns the "current time" (as per the event loop).
		461
		462	=item urxvt::CurrentTime
		463
		464	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
		465	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
		466	Button4Mask, Button5Mask, AnyModifier
		467
		468	=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
		469	ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
		470	PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
		471	Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
		472	KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
		473	ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
		474	FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
		475
		476	=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
		477	EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
		478	GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
		479	UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
		480	ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
		481	CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
		482	SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
		483
		484	Various constants for use in X calls and event processing.
330		485
331	=back	486	=back
332		487
333	=head2 RENDITION	488	=head2 RENDITION
334		489
…		…
349		504
350	=item $rend = urxvt::OVERLAY_RSTYLE	505	=item $rend = urxvt::OVERLAY_RSTYLE
351		506
352	Return the rendition mask used for overlays by default.	507	Return the rendition mask used for overlays by default.
353		508
354	=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline	509	=item $rendbit = urxvt::RS_Bold, urxvt::RS_Italic, urxvt::RS_Blink,
		510	urxvt::RS_RVid, urxvt::RS_Uline
355		511
356	Return the bit that enabled bold, italic, blink, reverse-video and	512	Return the bit that enabled bold, italic, blink, reverse-video and
357	underline, respectively. To enable such a style, just logically OR it into	513	underline, respectively. To enable such a style, just logically OR it into
358	the bitset.	514	the bitset.
359		515
…		…
361		517
362	=item $background = urxvt::GET_BASEBG $rend	518	=item $background = urxvt::GET_BASEBG $rend
363		519
364	Return the foreground/background colour index, respectively.	520	Return the foreground/background colour index, respectively.
365		521
366	=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)	522	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
367		523
368	=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)	524	=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
		525
		526	=item $rend = urxvt::SET_COLOR $rend, $new_fg, $new_bg
369		527
370	Replace the foreground/background colour in the rendition mask with the	528	Replace the foreground/background colour in the rendition mask with the
371	specified one.	529	specified one.
372		530
373	=item $value = urxvt::GET_CUSTOM ($rend)	531	=item $value = urxvt::GET_CUSTOM $rend
374		532
375	Return the "custom" value: Every rendition has 5 bits for use by	533	Return the "custom" value: Every rendition has 5 bits for use by
376	extensions. They can be set and changed as you like and are initially	534	extensions. They can be set and changed as you like and are initially
377	zero.	535	zero.
378		536
379	=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)	537	=item $rend = urxvt::SET_CUSTOM $rend, $new_value
380		538
381	Change the custom value.	539	Change the custom value.
382		540
383	=back	541	=back
384		542
385	=cut	543	=cut
386		544
387	package urxvt;
388
389	use strict;
390	use Scalar::Util ();
391
392	our $TERM;
393	our @HOOKNAME;
394	our $LIBDIR;
395
396	BEGIN {	545	BEGIN {
397	urxvt->bootstrap;
398
399	# overwrite perl's warn	546	# overwrite perl's warn
400	*CORE::GLOBAL::warn = sub {	547	*CORE::GLOBAL::warn = sub {
401	my $msg = join "", @_;	548	my $msg = join "", @_;
402	$msg .= "\n"	549	$msg .= "\n"
403	unless $msg =~ /\n$/;	550	unless $msg =~ /\n$/;
404	urxvt::warn ($msg);	551	urxvt::warn ($msg);
405	};	552	};
406	}	553	}
407		554
408	my @hook_count;	555	no warnings 'utf8';
		556
		557	sub parse_resource {
		558	my ($term, $name, $isarg, $longopt, $flag, $value) = @_;
		559
		560	$name =~ y/-/./ if $isarg;
		561
		562	$term->scan_extensions;
		563
		564	my $r = $term->{meta}{resource};
		565	keys %$r; # reset iterator
		566	while (my ($pattern, $v) = each %$r) {
		567	if (
		568	$pattern =~ /\.$/
		569	? $pattern eq substr $name, 0, length $pattern
		570	: $pattern eq $name
		571	) {
		572	$name = "$urxvt::RESCLASS.$name";
		573
		574	push @{ $term->{perl_ext_3} }, $v->[0];
		575
		576	if ($v->[1] eq "boolean") {
		577	$term->put_option_db ($name, $flag ? "true" : "false");
		578	return 1;
		579	} else {
		580	$term->put_option_db ($name, $value);
		581	return 1 + 2;
		582	}
		583	}
		584	}
		585
		586	0
		587	}
		588
		589	sub usage {
		590	my ($term, $usage_type) = @_;
		591
		592	$term->scan_extensions;
		593
		594	my $r = $term->{meta}{resource};
		595
		596	for my $pattern (sort keys %$r) {
		597	my ($ext, $type, $desc) = @{ $r->{$pattern} };
		598
		599	$desc .= " (-pe $ext)";
		600
		601	if ($usage_type == 1) {
		602	$pattern =~ y/./-/;
		603	$pattern =~ s/-$/-.../g;
		604
		605	if ($type eq "boolean") {
		606	urxvt::log sprintf " -%-30s %s\n", "/+$pattern", $desc;
		607	} else {
		608	urxvt::log sprintf " -%-30s %s\n", "$pattern $type", $desc;
		609	}
		610	} else {
		611	$pattern =~ s/\.$/.*/g;
		612	urxvt::log sprintf " %-31s %s\n", "$pattern:", $type;
		613	}
		614	}
		615	}
		616
409	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};	617	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
410		618
411	sub verbose {	619	sub verbose {
412	my ($level, $msg) = @_;	620	my ($level, $msg) = @_;
413	warn "$msg\n" if $level <= $verbosity;	621	warn "$msg\n" if $level <= $verbosity;
414	}	622	}
415		623
416	# find on_xxx subs in the package and register them	624	my %extension_pkg;
417	# as hooks
418	sub register_package($) {
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 $script_pkg = "script0000";
434	my %script_pkg;
435		625
436	# load a single script into its own package, once only	626	# load a single script into its own package, once only
437	sub script_package($) {	627	sub extension_package($) {
438	my ($path) = @_;	628	my ($path) = @_;
439		629
440	$script_pkg{$path} ||= do {	630	$extension_pkg{$path} ||= do {
441	my $pkg = "urxvt::" . ($script_pkg++);	631	$path =~ /([^\/\\]+)$/;
		632	my $pkg = $1;
		633	$pkg =~ s/[^[:word:]]/_/g;
		634	$pkg = "urxvt::ext::$pkg";
442		635
443	verbose 3, "loading script '$path' into package '$pkg'";	636	verbose 3, "loading extension '$path' into package '$pkg'";
		637
		638	(${"$pkg\::_NAME"} = $path) =~ s/^.*[\\\/]//; # hackish
444		639
445	open my $fh, "<:raw", $path	640	open my $fh, "<:raw", $path
446	or die "$path: $!";	641	or die "$path: $!";
447		642
448	my $source = "package $pkg; use strict; use utf8;\n"	643	my $source =
		644	"package $pkg; use strict 'vars'; use utf8; no warnings 'utf8';\n"
449	. "#line 1 \"$path\"\n{\n"	645	. "#line 1 \"$path\"\n{\n"
450	. (do { local $/; <$fh> })	646	. (do { local $/; <$fh> })
451	. "\n};\n1";	647	. "\n};\n1";
452		648
		649	eval $source
453	eval $source or die "$path: $@";	650	or die "$path: $@";
454		651
455	$pkg	652	$pkg
456	}	653	}
457	}	654	}
458		655
…		…
461	# called by the rxvt core	658	# called by the rxvt core
462	sub invoke {	659	sub invoke {
463	local $TERM = shift;	660	local $TERM = shift;
464	my $htype = shift;	661	my $htype = shift;
465		662
466	if ($htype == 0) { # INIT	663	if ($htype == HOOK_INIT) {
467	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");	664	my @dirs = $TERM->perl_libdirs;
468		665
		666	$TERM->scan_extensions;
		667
		668	my %ext_arg;
		669
		670	{
		671	my @init = @TERM_INIT;
		672	@TERM_INIT = ();
		673	$_->($TERM) for @init;
		674	my @pkg = @TERM_EXT;
		675	@TERM_EXT = ();
		676	$TERM->register_package ($_) for @pkg;
		677	}
		678
		679	for (
469	for my $ext (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {	680	grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2
		681	) {
		682	if ($_ eq "default") {
		683
		684	$ext_arg{$_} = []
		685	for
		686	qw(selection option-popup selection-popup readline),
		687	map $_->[0], values %{ $TERM->{meta}{binding} },
		688	@{ delete $TERM->{perl_ext_3} };
		689
		690	for ($TERM->_keysym_resources) {
		691	next if /^(?:string|command|builtin|builtin-string|perl)/;
		692	next unless /^([A-Za-z0-9_\-]+):/;
		693
		694	my $ext = $1;
		695	$ext =~ y/-/_/;
		696
		697	$ext_arg{$ext} = [];
		698	}
		699
		700	} elsif (/^-(.*)$/) {
		701	delete $ext_arg{$1};
		702
		703	} elsif (/^([^<]+)<(.*)>$/) {
		704	push @{ $ext_arg{$1} }, $2;
		705
		706	} else {
		707	$ext_arg{$_} ||= [];
		708	}
		709	}
		710
		711	# now register default key bindings
		712	for my $ext (sort keys %ext_arg) {
		713	while (my ($k, $v) = each %{ $TERM->{meta}{ext}{$ext}{binding} }) {
		714	$TERM->bind_action ($k, "$v->[0]:$v->[1]");
		715	}
		716	}
		717
		718	for my $ext (sort keys %ext_arg) {
470	my @files = grep -f $_, map "$_/$ext", @dirs;	719	my @files = grep -f $_, map "$_/$ext", @dirs;
471		720
472	if (@files) {	721	if (@files) {
473	register_package script_package $files[0];	722	$TERM->register_package (extension_package $files[0], $ext_arg{$ext});
474	} else {	723	} else {
475	warn "perl extension '$ext' not found in perl library search path\n";	724	warn "perl extension '$ext' not found in perl library search path\n";
476	}	725	}
477	}	726	}
		727
		728	eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval");
		729	warn $@ if $@;
478	}	730	}
479		731
480	$retval = undef;	732	$retval = undef;
481		733
482	if (my $cb = $TERM->{_hook}[$htype]) {	734	if (my $cb = $TERM->{_hook}[$htype]) {
483	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"	735	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
484	if $verbosity >= 10;	736	if $verbosity >= 10;
485		737
486	keys %$cb;	738	if ($htype == HOOK_ACTION) {
		739	# this hook is only sent to the extension with the name
		740	# matching the first arg
		741	my $pkg = shift;
		742	$pkg =~ y/-/_/;
		743	$pkg = "urxvt::ext::$pkg";
487		744
488	while (my ($pkg, $cb) = each %$cb) {	745	$cb = $cb->{$pkg}
489	$retval = $cb->(	746	or return undef; #TODO: maybe warn user?
490	$TERM->{_pkg}{$pkg} ||= do {	747
491	my $proxy = bless { }, urxvt::term::proxy::;	748	$cb = { $pkg => $cb };
492	Scalar::Util::weaken ($proxy->{term} = $TERM);
493	$proxy
494	},
495	@_,
496	) and last;
497	}	749	}
498	}
499		750
500	if ($htype == 1) { # DESTROY	751	for my $pkg (keys %$cb) {
501	# remove hooks if unused	752	my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg} || $TERM, @_) };
502	if (my $hook = $TERM->{_hook}) {	753	$retval ||= $retval_;
503	for my $htype (0..$#$hook) {	754
504	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }	755	if ($@) {
505	or set_should_invoke $htype, 0;	756	$TERM->ungrab; # better to lose the grab than the session
		757	warn $@;
506	}	758	}
507	}	759	}
508		760
		761	verbose 11, "$HOOKNAME[$htype] returning <$retval>"
		762	if $verbosity >= 11;
		763	}
		764
		765	if ($htype == HOOK_DESTROY) {
509	# clear package objects	766	# clear package objects
510	%$_ = () for values %{ $TERM->{_pkg} };	767	%$_ = () for values %{ $TERM->{_pkg} };
511		768
512	# clear package	769	# clear package
513	%$TERM = ();	770	%$TERM = ();
514	}	771	}
515		772
516	$retval	773	$retval
517	}	774	}
518		775
519	sub urxvt::term::proxy::AUTOLOAD {	776	sub SET_COLOR($$$) {
520	$urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/	777	SET_BGCOLOR (SET_FGCOLOR ($_[0], $_[1]), $_[2])
		778	}
		779
		780	sub rend2mask {
		781	no strict 'refs';
		782	my ($str, $mask) = (@_, 0);
		783	my %color = ( fg => undef, bg => undef );
		784	my @failed;
		785	for my $spec ( split /\s+/, $str ) {
		786	if ( $spec =~ /^([fb]g)[_:-]?(\d+)/i ) {
		787	$color{lc($1)} = $2;
		788	} else {
		789	my $neg = $spec =~ s/^[-^]//;
		790	unless ( exists &{"RS_$spec"} ) {
		791	push @failed, $spec;
		792	next;
		793	}
		794	my $cur = &{"RS_$spec"};
		795	if ( $neg ) {
		796	$mask &= ~$cur;
		797	} else {
		798	$mask |= $cur;
		799	}
		800	}
		801	}
		802	($mask, @color{qw(fg bg)}, \@failed)
		803	}
		804
		805	package urxvt::term::extension;
		806
		807	=head2 The C<urxvt::term::extension> class
		808
		809	Each extension attached to a terminal object is represented by
		810	a C<urxvt::term::extension> object.
		811
		812	You can use these objects, which are passed to all callbacks to store any
		813	state related to the terminal and extension instance.
		814
		815	The methods (And data members) documented below can be called on extension
		816	objects, in addition to call methods documented for the <urxvt::term>
		817	class.
		818
		819	=over 4
		820
		821	=item $urxvt_term = $self->{term}
		822
		823	Returns the C<urxvt::term> object associated with this instance of the
		824	extension. This member I<must not> be changed in any way.
		825
		826	=cut
		827
		828	our $AUTOLOAD;
		829
		830	sub AUTOLOAD {
		831	$AUTOLOAD =~ /:([^:]+)$/
521	or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";	832	or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
522		833
523	eval qq{	834	eval qq{
524	sub $urxvt::term::proxy::AUTOLOAD {	835	sub $AUTOLOAD {
525	my \$proxy = shift;	836	my \$proxy = shift;
526	\$proxy->{term}->$1 (\@_)	837	\$proxy->{term}->$1 (\@_)
527	}	838	}
528	1	839	1
529	} or die "FATAL: unable to compile method forwarder: $@";	840	} or die "FATAL: unable to compile method forwarder: $@";
530		841
531	goto &$urxvt::term::proxy::AUTOLOAD;	842	goto &$AUTOLOAD;
532	}	843	}
		844
		845	sub DESTROY {
		846	# nop
		847	}
		848
		849	# urxvt::destroy_hook (basically a cheap Guard:: implementation)
		850
		851	sub urxvt::destroy_hook::DESTROY {
		852	${$_[0]}->();
		853	}
		854
		855	sub urxvt::destroy_hook(&) {
		856	bless \shift, urxvt::destroy_hook::
		857	}
		858
		859	=item $self->enable ($hook_name => $cb[, $hook_name => $cb..])
		860
		861	Dynamically enable the given hooks (named without the C<on_> prefix) for
		862	this extension, replacing any hook previously installed via C<enable> in
		863	this extension.
		864
		865	This is useful when you want to overwrite time-critical hooks only
		866	temporarily.
		867
		868	To install additional callbacks for the same hook, you can use the C<on>
		869	method of the C<urxvt::term> class.
		870
		871	=item $self->disable ($hook_name[, $hook_name..])
		872
		873	Dynamically disable the given hooks.
		874
		875	=cut
		876
		877	sub enable {
		878	my ($self, %hook) = @_;
		879	my $pkg = $self->{_pkg};
		880
		881	while (my ($name, $cb) = each %hook) {
		882	my $htype = $HOOKTYPE{uc $name};
		883	defined $htype
		884	or Carp::croak "unsupported hook type '$name'";
		885
		886	$self->set_should_invoke ($htype, +1)
		887	unless exists $self->{term}{_hook}[$htype]{$pkg};
		888
		889	$self->{term}{_hook}[$htype]{$pkg} = $cb;
		890	}
		891	}
		892
		893	sub disable {
		894	my ($self, @hook) = @_;
		895	my $pkg = $self->{_pkg};
		896
		897	for my $name (@hook) {
		898	my $htype = $HOOKTYPE{uc $name};
		899	defined $htype
		900	or Carp::croak "unsupported hook type '$name'";
		901
		902	$self->set_should_invoke ($htype, -1)
		903	if delete $self->{term}{_hook}[$htype]{$pkg};
		904	}
		905	}
		906
		907	=item $guard = $self->on ($hook_name => $cb[, $hook_name => $cb..])
		908
		909	Similar to the C<enable> enable, but installs additional callbacks for
		910	the given hook(s) (that is, it doesn't replace existing callbacks), and
		911	returns a guard object. When the guard object is destroyed the callbacks
		912	are disabled again.
		913
		914	=cut
		915
		916	sub urxvt::extension::on_disable::DESTROY {
		917	my $disable = shift;
		918
		919	my $term = delete $disable->{""};
		920
		921	while (my ($htype, $id) = each %$disable) {
		922	delete $term->{_hook}[$htype]{$id};
		923	$term->set_should_invoke ($htype, -1);
		924	}
		925	}
		926
		927	sub on {
		928	my ($self, %hook) = @_;
		929
		930	my $term = $self->{term};
		931
		932	my %disable = ( "" => $term );
		933
		934	while (my ($name, $cb) = each %hook) {
		935	my $htype = $HOOKTYPE{uc $name};
		936	defined $htype
		937	or Carp::croak "unsupported hook type '$name'";
		938
		939	$term->set_should_invoke ($htype, +1);
		940	$term->{_hook}[$htype]{ $disable{$htype} = $cb+0 }
		941	= sub { shift; $cb->($self, @_) }; # very ugly indeed
		942	}
		943
		944	bless \%disable, "urxvt::extension::on_disable"
		945	}
		946
		947	=item $self->x_resource ($pattern)
		948
		949	=item $self->x_resource_boolean ($pattern)
		950
		951	These methods support an additional C<%> prefix when called on an
		952	extension object - see the description of these methods in the
		953	C<urxvt::term> class for details.
		954
		955	=cut
		956
		957	sub x_resource {
		958	my ($self, $name) = @_;
		959	$name =~ s/^%(\.|$)/$_[0]{_name}$1/;
		960	$self->{term}->x_resource ($name)
		961	}
		962
		963	sub x_resource_boolean {
		964	my ($self, $name) = @_;
		965	$name =~ s/^%(\.|$)/$_[0]{_name}$1/;
		966	$self->{term}->x_resource_boolean ($name)
		967	}
		968
		969	=back
		970
		971	=cut
		972
		973	package urxvt::anyevent;
		974
		975	=head2 The C<urxvt::anyevent> Class
		976
		977	The sole purpose of this class is to deliver an interface to the
		978	C<AnyEvent> module - any module using it will work inside urxvt without
		979	further programming. The only exception is that you cannot wait on
		980	condition variables, but non-blocking condvar use is ok.
		981
		982	In practical terms this means is that you cannot use blocking APIs, but
		983	the non-blocking variant should work.
		984
		985	=cut
		986
		987	our $VERSION = '5.23';
		988
		989	$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
		990	push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
		991
		992	sub timer {
		993	my ($class, %arg) = @_;
		994
		995	my $cb = $arg{cb};
		996
		997	urxvt::timer
		998	->new
		999	->after ($arg{after}, $arg{interval})
		1000	->cb ($arg{interval} ? $cb : sub {
		1001	$_[0]->stop; # need to cancel manually
		1002	$cb->();
		1003	})
		1004	}
		1005
		1006	sub io {
		1007	my ($class, %arg) = @_;
		1008
		1009	my $cb = $arg{cb};
		1010	my $fd = fileno $arg{fh};
		1011	defined $fd or $fd = $arg{fh};
		1012
		1013	bless [$arg{fh}, urxvt::iow
		1014	->new
		1015	->fd ($fd)
		1016	->events (($arg{poll} =~ /r/ ? 1 : 0)
		1017	| ($arg{poll} =~ /w/ ? 2 : 0))
		1018	->start
		1019	->cb ($cb)
		1020	], urxvt::anyevent::
		1021	}
		1022
		1023	sub idle {
		1024	my ($class, %arg) = @_;
		1025
		1026	my $cb = $arg{cb};
		1027
		1028	urxvt::iw
		1029	->new
		1030	->start
		1031	->cb ($cb)
		1032	}
		1033
		1034	sub child {
		1035	my ($class, %arg) = @_;
		1036
		1037	my $cb = $arg{cb};
		1038
		1039	urxvt::pw
		1040	->new
		1041	->start ($arg{pid})
		1042	->cb (sub {
		1043	$_[0]->stop; # need to cancel manually
		1044	$cb->($_[0]->rpid, $_[0]->rstatus);
		1045	})
		1046	}
		1047
		1048	sub DESTROY {
		1049	$_[0][1]->stop;
		1050	}
		1051
		1052	# only needed for AnyEvent < 6 compatibility
		1053	sub one_event {
		1054	Carp::croak "AnyEvent->one_event blocking wait unsupported in urxvt, use a non-blocking API";
		1055	}
		1056
		1057	package urxvt::term;
533		1058
534	=head2 The C<urxvt::term> Class	1059	=head2 The C<urxvt::term> Class
535		1060
536	=over 4	1061	=over 4
537		1062
		1063	=cut
		1064
		1065	# find on_xxx subs in the package and register them
		1066	# as hooks
		1067	sub register_package {
		1068	my ($self, $pkg, $argv) = @_;
		1069
		1070	no strict 'refs';
		1071
		1072	urxvt::verbose 6, "register package $pkg to $self";
		1073
		1074	@{"$pkg\::ISA"} = urxvt::term::extension::;
		1075
		1076	my $proxy = bless {
		1077	_pkg => $pkg,
		1078	_name => ${"$pkg\::_NAME"}, # hackish
		1079	argv => $argv,
		1080	}, $pkg;
		1081	Scalar::Util::weaken ($proxy->{term} = $self);
		1082
		1083	$self->{_pkg}{$pkg} = $proxy;
		1084
		1085	for my $name (@HOOKNAME) {
		1086	if (my $ref = $pkg->can ("on_" . lc $name)) {
		1087	$proxy->enable ($name => $ref);
		1088	}
		1089	}
		1090	}
		1091
		1092	sub perl_libdirs {
		1093	map { split /:/ }
		1094	$_[0]->resource ("perl_lib"),
		1095	$ENV{URXVT_PERL_LIB},
		1096	"$ENV{HOME}/.urxvt/ext",
		1097	"$LIBDIR/perl"
		1098	}
		1099
		1100	# scan for available extensions and collect their metadata
		1101	sub scan_extensions {
		1102	my ($self) = @_;
		1103
		1104	return if exists $self->{meta};
		1105
		1106	my @libdirs = perl_libdirs $self;
		1107
		1108	# return if $self->{meta_libdirs} eq join "\x00", @libdirs;#d#
		1109
		1110	# $self->{meta_libdirs} = join "\x00", @libdirs;#d#
		1111	$self->{meta} = \my %meta;
		1112
		1113	# first gather extensions
		1114	for my $dir (reverse @libdirs) {
		1115	opendir my $fh, $dir
		1116	or next;
		1117	for my $ext (readdir $fh) {
		1118	$ext !~ /^\./
		1119	and open my $fh, "<", "$dir/$ext"
		1120	or next;
		1121
		1122	my %ext = (dir => $dir);
		1123
		1124	while (<$fh>) {
		1125	if (/^#:META:(?:X_)?RESOURCE:(.*)/) {
		1126	my ($pattern, $type, $desc) = split /:/, $1;
		1127	$pattern =~ s/^%(\.|$)/$ext$1/g; # % in pattern == extension name
		1128	if ($pattern =~ /[^a-zA-Z0-9\-\.]/) {
		1129	warn "$dir/$ext: meta resource '$pattern' contains illegal characters (not alphanumeric nor . nor *)\n";
		1130	} else {
		1131	$ext{resource}{$pattern} = [$ext, $type, $desc];
		1132	}
		1133	} elsif (/^#:META:BINDING:(.*)/) {
		1134	my ($keysym, $action) = split /:/, $1;
		1135	$ext{binding}{$keysym} = [$ext, $action];
		1136	} elsif (/^\s*(?:#|$)/) {
		1137	# skip other comments and empty lines
		1138	} else {
		1139	last; # stop parsing on first non-empty non-comment line
		1140	}
		1141	}
		1142
		1143	$meta{ext}{$ext} = \%ext;
		1144	}
		1145	}
		1146
		1147	# and now merge resources and bindings
		1148	while (my ($k, $v) = each %{ $meta{ext} }) {
		1149	#TODO: should check for extensions overriding each other
		1150	%{ $meta{resource} } = (%{ $meta{resource} }, %{ $v->{resource} });
		1151	%{ $meta{binding} } = (%{ $meta{binding} }, %{ $v->{binding} });
		1152	}
		1153	}
		1154
		1155	=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
		1156
		1157	Creates a new terminal, very similar as if you had started it with system
		1158	C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
		1159	hash which defines the environment of the new terminal.
		1160
		1161	Croaks (and probably outputs an error message) if the new instance
		1162	couldn't be created. Returns C<undef> if the new instance didn't
		1163	initialise perl, and the terminal object otherwise. The C<init> and
		1164	C<start> hooks will be called before this call returns, and are free to
		1165	refer to global data (which is race free).
		1166
		1167	=cut
		1168
		1169	sub new {
		1170	my ($class, $env, @args) = @_;
		1171
		1172	$env or Carp::croak "environment hash missing in call to urxvt::term->new";
		1173	@args or Carp::croak "name argument missing in call to urxvt::term->new";
		1174
		1175	_new ([ map "$_=$env->{$_}", keys %$env ], \@args);
		1176	}
		1177
538	=item $term->destroy	1178	=item $term->destroy
539		1179
540	Destroy the terminal object (close the window, free resources etc.).	1180	Destroy the terminal object (close the window, free resources
		1181	etc.). Please note that urxvt will not exit as long as any event
		1182	watchers (timers, io watchers) are still active.
		1183
		1184	=item $term->exec_async ($cmd[, @args])
		1185
		1186	Works like the combination of the C<fork>/C<exec> builtins, which executes
		1187	("starts") programs in the background. This function takes care of setting
		1188	the user environment before exec'ing the command (e.g. C<PATH>) and should
		1189	be preferred over explicit calls to C<exec> or C<system>.
		1190
		1191	Returns the pid of the subprocess or C<undef> on error.
		1192
		1193	=cut
		1194
		1195	sub exec_async {
		1196	my $self = shift;
		1197
		1198	my $pid = fork;
		1199
		1200	return $pid
		1201	if !defined $pid or $pid;
		1202
		1203	%ENV = %{ $self->env };
		1204
		1205	exec @_;
		1206	urxvt::_exit 255;
		1207	}
		1208
		1209	=item $isset = $term->option ($optval[, $set])
		1210
		1211	Returns true if the option specified by C<$optval> is enabled, and
		1212	optionally change it. All option values are stored by name in the hash
		1213	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
		1214
		1215	Here is a likely non-exhaustive list of option names, please see the
		1216	source file F</src/optinc.h> to see the actual list:
		1217
		1218	borderLess buffered console cursorBlink cursorUnderline hold iconic
		1219	insecure intensityStyles iso14755 iso14755_52 jumpScroll loginShell
		1220	mapAlert meta8 mouseWheelScrollPage override_redirect pastableTabs
		1221	pointerBlank reverseVideo scrollBar scrollBar_floating scrollBar_right
		1222	scrollTtyKeypress scrollTtyOutput scrollWithBuffer secondaryScreen
		1223	secondaryScroll skipBuiltinGlyphs skipScroll transparent tripleclickwords
		1224	urgentOnBell utmpInhibit visualBell
541		1225
542	=item $value = $term->resource ($name[, $newval])	1226	=item $value = $term->resource ($name[, $newval])
543		1227
544	Returns the current resource value associated with a given name and	1228	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>	1229	optionally sets a new value. Setting values is most useful in the C<init>
…		…
554	likely change).	1238	likely change).
555		1239
556	Please note that resource strings will currently only be freed when the	1240	Please note that resource strings will currently only be freed when the
557	terminal is destroyed, so changing options frequently will eat memory.	1241	terminal is destroyed, so changing options frequently will eat memory.
558		1242
559	Here is a a likely non-exhaustive list of resource names, not all of which	1243	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	1244	are supported in every build, please see the source file F</src/rsinc.h>
561	list:	1245	to see the actual list:
562		1246
563	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont	1247	answerbackstring backgroundPixmap backspace_key blurradius
564	borderLess color cursorBlink cursorUnderline cutchars delete_key	1248	boldFont boldItalicFont borderLess buffered chdir color cursorBlink
565	display_name embed ext_bwidth fade font geometry hold iconName	1249	cursorUnderline cutchars delete_key depth display_name embed ext_bwidth
566	imFont imLocale inputMethod insecure int_bwidth intensityStyles	1250	fade font geometry hold iconName iconfile imFont imLocale inputMethod
		1251	insecure int_bwidth intensityStyles iso14755 iso14755_52 italicFont
567	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier	1252	jumpScroll letterSpace lineSpace loginShell mapAlert meta8 modifier
568	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2	1253	mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
569	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd	1254	perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
570	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating	1255	preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
571	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput	1256	scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
572	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle	1257	scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
573	shade term_name title transparent transparent_all tripleclickwords	1258	secondaryScreen secondaryScroll shade skipBuiltinGlyphs skipScroll
		1259	term_name title transient_for transparent tripleclickwords urgentOnBell
574	utmpInhibit visualBell	1260	utmpInhibit visualBell
575		1261
576	=cut	1262	=cut
577		1263
578	sub urxvt::term::resource($$;$) {	1264	sub resource($$;$) {
579	my ($self, $name) = (shift, shift);	1265	my ($self, $name) = (shift, shift);
580	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);	1266	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
581	goto &urxvt::term::_resource;	1267	goto &urxvt::term::_resource
582	}	1268	}
		1269
		1270	=item $value = $term->x_resource ($pattern)
		1271
		1272	Returns the X-Resource for the given pattern, excluding the program or
		1273	class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
		1274	same value as used by this instance of rxvt-unicode. Returns C<undef> if no
		1275	resource with that pattern exists.
		1276
		1277	Extensions that define extra resource or command line arguments also need
		1278	to call this method to access their values.
		1279
		1280	If the method is called on an extension object (basically, from an
		1281	extension), then the special prefix C<%.> will be replaced by the name of
		1282	the extension and a dot, and the lone string C<%> will be replaced by the
		1283	extension name itself. This makes it possible to code extensions so you
		1284	can rename them and get a new set of commandline switches and resources
		1285	without having to change the actual code.
		1286
		1287	This method should only be called during the C<on_start> hook, as there is
		1288	only one resource database per display, and later invocations might return
		1289	the wrong resources.
		1290
		1291	=item $value = $term->x_resource_boolean ($pattern)
		1292
		1293	Like C<x_resource>, above, but interprets the string value as a boolean
		1294	and returns C<1> for true values, C<0> for false values and C<undef> if
		1295	the resource or option isn't specified.
		1296
		1297	You should always use this method to parse boolean resources.
		1298
		1299	=cut
		1300
		1301	sub x_resource_boolean {
		1302	my $res = &x_resource;
		1303
		1304	$res =~ /^\s*(?:true|yes|on|1)\s*$/i ? 1 : defined $res && 0
		1305	}
		1306
		1307	=item $success = $term->bind_action ($key, $octets)
		1308
		1309	Adds a key binding exactly as specified via a C<keysym> resource. See the
		1310	C<keysym> resource in the urxvt(1) manpage.
583		1311
584	=item $rend = $term->rstyle ([$new_rstyle])	1312	=item $rend = $term->rstyle ([$new_rstyle])
585		1313
586	Return and optionally change the current rendition. Text that is output by	1314	Return and optionally change the current rendition. Text that is output by
587	the terminal application will use this style.	1315	the terminal application will use this style.
…		…
595		1323
596	=item ($row, $col) = $term->selection_beg ([$row, $col])	1324	=item ($row, $col) = $term->selection_beg ([$row, $col])
597		1325
598	=item ($row, $col) = $term->selection_end ([$row, $col])	1326	=item ($row, $col) = $term->selection_end ([$row, $col])
599		1327
600	Return the current values of the selection mark, begin or end positions,	1328	Return the current values of the selection mark, begin or end positions.
601	and optionally set them to new values.
602		1329
		1330	When arguments are given, then the selection coordinates are set to
		1331	C<$row> and C<$col>, and the selection screen is set to the current
		1332	screen.
		1333
		1334	=item $screen = $term->selection_screen ([$screen])
		1335
		1336	Returns the current selection screen, and then optionally sets it.
		1337
		1338	=item $term->selection_make ($eventtime[, $rectangular])
		1339
		1340	Tries to make a selection as set by C<selection_beg> and
		1341	C<selection_end>. If C<$rectangular> is true (default: false), a
		1342	rectangular selection will be made. This is the preferred function to make
		1343	a selection.
		1344
603	=item $success = $term->selection_grab ($eventtime)	1345	=item $success = $term->selection_grab ($eventtime[, $clipboard])
604		1346
605	Try to request the primary selection from the server (for example, as set	1347	Try to acquire ownership of the primary (clipboard if C<$clipboard> is
606	by the next method).	1348	true) selection from the server. The corresponding text can be set
		1349	with the next method. No visual feedback will be given. This function
		1350	is mostly useful from within C<on_sel_grab> hooks.
607		1351
608	=item $oldtext = $term->selection ([$newtext])	1352	=item $oldtext = $term->selection ([$newtext, $clipboard])
609		1353
610	Return the current selection text and optionally replace it by C<$newtext>.	1354	Return the current selection (clipboard if C<$clipboard> is true) text
		1355	and optionally replace it by C<$newtext>.
611		1356
		1357	=item $term->selection_clear ([$clipboard])
		1358
		1359	Revoke ownership of the primary (clipboard if C<$clipboard> is true) selection.
		1360
612	#=item $term->overlay ($x, $y, $text)	1361	=item $term->overlay_simple ($x, $y, $text)
613	#	1362
614	#Create a simple multi-line overlay box. See the next method for details.	1363	Create a simple multi-line overlay box. See the next method for details.
615	#	1364
616	#=cut	1365	=cut
617	#	1366
618	#sub urxvt::term::scr_overlay {	1367	sub overlay_simple {
619	# my ($self, $x, $y, $text) = @_;	1368	my ($self, $x, $y, $text) = @_;
620	#	1369
621	# my @lines = split /\n/, $text;	1370	my @lines = split /\n/, $text;
622	#	1371
623	# my $w = 0;	1372	my $w = List::Util::max map $self->strwidth ($_), @lines;
624	# for (map $self->strwidth ($_), @lines) {	1373
625	# $w = $_ if $w < $_;
626	# }
627	#
628	# $self->scr_overlay_new ($x, $y, $w, scalar @lines);	1374	my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
629	# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;	1375	$overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
630	#}	1376
		1377	$overlay
		1378	}
631		1379
632	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])	1380	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
633		1381
634	Create a new (empty) overlay at the given position with the given	1382	Create a new (empty) overlay at the given position with the given
635	width/height. C<$rstyle> defines the initial rendition style	1383	width/height. C<$rstyle> defines the initial rendition style
…		…
646		1394
647	The methods currently supported on C<urxvt::overlay> objects are:	1395	The methods currently supported on C<urxvt::overlay> objects are:
648		1396
649	=over 4	1397	=over 4
650		1398
651	=item $overlay->set ($x, $y, $text, $rend)	1399	=item $overlay->set ($x, $y, $text[, $rend])
652		1400
653	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts	1401	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts
654	text in rxvt-unicode's special encoding and an array of rendition values	1402	text in rxvt-unicode's special encoding and an array of rendition values
655	at a specific position inside the overlay.	1403	at a specific position inside the overlay.
656		1404
		1405	If C<$rend> is missing, then the rendition will not be changed.
		1406
657	=item $overlay->hide	1407	=item $overlay->hide
658		1408
659	If visible, hide the overlay, but do not destroy it.	1409	If visible, hide the overlay, but do not destroy it.
660		1410
661	=item $overlay->show	1411	=item $overlay->show
662		1412
663	If hidden, display the overlay again.	1413	If hidden, display the overlay again.
664		1414
665	=back	1415	=back
		1416
		1417	=item $popup = $term->popup ($event)
		1418
		1419	Creates a new C<urxvt::popup> object that implements a popup menu. The
		1420	C<$event> I<must> be the event causing the menu to pop up (a button event,
		1421	currently).
		1422
		1423	=cut
		1424
		1425	sub popup {
		1426	my ($self, $event) = @_;
		1427
		1428	$self->grab ($event->{time}, 1)
		1429	or return;
		1430
		1431	my $popup = bless {
		1432	term => $self,
		1433	event => $event,
		1434	}, urxvt::popup::;
		1435
		1436	Scalar::Util::weaken $popup->{term};
		1437
		1438	$self->{_destroy}{$popup} = urxvt::destroy_hook { $popup->{popup}->destroy };
		1439	Scalar::Util::weaken $self->{_destroy}{$popup};
		1440
		1441	$popup
		1442	}
666		1443
667	=item $cellwidth = $term->strwidth ($string)	1444	=item $cellwidth = $term->strwidth ($string)
668		1445
669	Returns the number of screen-cells this string would need. Correctly	1446	Returns the number of screen-cells this string would need. Correctly
670	accounts for wide and combining characters.	1447	accounts for wide and combining characters.
…		…
674	Convert the given text string into the corresponding locale encoding.	1451	Convert the given text string into the corresponding locale encoding.
675		1452
676	=item $string = $term->locale_decode ($octets)	1453	=item $string = $term->locale_decode ($octets)
677		1454
678	Convert the given locale-encoded octets into a perl string.	1455	Convert the given locale-encoded octets into a perl string.
		1456
		1457	=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
		1458
		1459	XORs the rendition values in the given span with the provided value
		1460	(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
		1461	refresh hooks to provide effects similar to the selection.
		1462
		1463	=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
		1464
		1465	Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
		1466	whitespace will additionally be xored with the C<$rstyle2>, which defaults
		1467	to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
		1468	it instead. Both styles I<MUST NOT> contain font styles.
		1469
		1470	=item $term->scr_bell
		1471
		1472	Ring the bell!
679		1473
680	=item $term->scr_add_lines ($string)	1474	=item $term->scr_add_lines ($string)
681		1475
682	Write the given text string to the screen, as if output by the application	1476	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	1477	running inside the terminal. It may not contain command sequences (escape
…		…
686		1480
687	Normally its not a good idea to use this function, as programs might be	1481	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	1482	confused by changes in cursor position or scrolling. Its useful inside a
689	C<on_add_lines> hook, though.	1483	C<on_add_lines> hook, though.
690		1484
		1485	=item $term->scr_change_screen ($screen)
		1486
		1487	Switch to given screen - 0 primary, 1 secondary.
		1488
691	=item $term->cmd_parse ($octets)	1489	=item $term->cmd_parse ($octets)
692		1490
693	Similar to C<scr_add_lines>, but the argument must be in the	1491	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	1492	locale-specific encoding of the terminal and can contain command sequences
695	(escape codes) that will be interpreted.	1493	(escape codes) that will be interpreted.
696		1494
697	=item $term->tt_write ($octets)	1495	=item $term->tt_write ($octets)
698		1496
699	Write the octets given in C<$data> to the tty (i.e. as program input). To	1497	Write the octets given in C<$octets> to the tty (i.e. as program input). To
700	pass characters instead of octets, you should convert your strings first	1498	pass characters instead of octets, you should convert your strings first
701	to the locale-specific encoding using C<< $term->locale_encode >>.	1499	to the locale-specific encoding using C<< $term->locale_encode >>.
702		1500
		1501	=item $term->tt_write_user_input ($octets)
		1502
		1503	Like C<tt_write>, but should be used when writing strings in response to
		1504	the user pressing a key, to invokes the additional actions requested by
		1505	the user for that case (C<tt_write> doesn't do that).
		1506
		1507	The typical use case would be inside C<on_action> hooks.
		1508
		1509	=item $term->tt_paste ($octets)
		1510
		1511	Write the octets given in C<$octets> to the tty as a paste, converting NL to
		1512	CR and bracketing the data with control sequences if bracketed paste mode
		1513	is set.
		1514
		1515	=item $old_events = $term->pty_ev_events ([$new_events])
		1516
		1517	Replaces the event mask of the pty watcher by the given event mask. Can
		1518	be used to suppress input and output handling to the pty/tty. See the
		1519	description of C<< urxvt::timer->events >>. Make sure to always restore
		1520	the previous value.
		1521
		1522	=item $fd = $term->pty_fd
		1523
		1524	Returns the master file descriptor for the pty in use, or C<-1> if no pty
		1525	is used.
		1526
703	=item $windowid = $term->parent	1527	=item $windowid = $term->parent
704		1528
705	Return the window id of the toplevel window.	1529	Return the window id of the toplevel window.
706		1530
707	=item $windowid = $term->vt	1531	=item $windowid = $term->vt
708		1532
709	Return the window id of the terminal window.	1533	Return the window id of the terminal window.
710		1534
		1535	=item $term->vt_emask_add ($x_event_mask)
		1536
		1537	Adds the specified events to the vt event mask. Useful e.g. when you want
		1538	to receive pointer events all the times:
		1539
		1540	$term->vt_emask_add (urxvt::PointerMotionMask);
		1541
		1542	=item $term->set_urgency ($set)
		1543
		1544	Enable/disable the urgency hint on the toplevel window.
		1545
		1546	=item $term->focus_in
		1547
		1548	=item $term->focus_out
		1549
		1550	=item $term->key_press ($state, $keycode[, $time])
		1551
		1552	=item $term->key_release ($state, $keycode[, $time])
		1553
		1554	Deliver various fake events to to terminal.
		1555
711	=item $window_width = $term->width	1556	=item $window_width = $term->width
712		1557
713	=item $window_height = $term->height	1558	=item $window_height = $term->height
714		1559
715	=item $font_width = $term->fwidth	1560	=item $font_width = $term->fwidth
…		…
728		1573
729	=item $max_scrollback = $term->saveLines	1574	=item $max_scrollback = $term->saveLines
730		1575
731	=item $nrow_plus_saveLines = $term->total_rows	1576	=item $nrow_plus_saveLines = $term->total_rows
732		1577
733	=item $lines_in_scrollback = $term->nsaved	1578	=item $topmost_scrollback_row = $term->top_row
734		1579
735	Return various integers describing terminal characteristics.	1580	Return various integers describing terminal characteristics.
736		1581
		1582	=item $x_display = $term->display_id
		1583
		1584	Return the DISPLAY used by rxvt-unicode.
		1585
		1586	=item $lc_ctype = $term->locale
		1587
		1588	Returns the LC_CTYPE category string used by this rxvt-unicode.
		1589
		1590	=item $env = $term->env
		1591
		1592	Returns a copy of the environment in effect for the terminal as a hashref
		1593	similar to C<\%ENV>.
		1594
		1595	=item @envv = $term->envv
		1596
		1597	Returns the environment as array of strings of the form C<VAR=VALUE>.
		1598
		1599	=item @argv = $term->argv
		1600
		1601	Return the argument vector as this terminal, similar to @ARGV, but
		1602	includes the program name as first element.
		1603
		1604	=cut
		1605
		1606	sub env {
		1607	+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), $_[0]->envv }
		1608	}
		1609
		1610	=item $modifiermask = $term->ModLevel3Mask
		1611
		1612	=item $modifiermask = $term->ModMetaMask
		1613
		1614	=item $modifiermask = $term->ModNumLockMask
		1615
		1616	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
		1617	AltGr), the meta key (often Alt) and the num lock key, if applicable.
		1618
		1619	=item $screen = $term->current_screen
		1620
		1621	Returns the currently displayed screen (0 primary, 1 secondary).
		1622
		1623	=item $cursor_is_hidden = $term->hidden_cursor
		1624
		1625	Returns whether the cursor is currently hidden or not.
		1626
737	=item $view_start = $term->view_start ([$newvalue])	1627	=item $view_start = $term->view_start ([$newvalue])
738		1628
739	Returns the negative row number of the topmost line. Minimum value is	1629	Returns the row number of the topmost displayed line. Maximum value is
740	C<0>, which displays the normal terminal contents. Larger values scroll	1630	C<0>, which displays the normal terminal contents. Lower values scroll
741	this many lines into the scrollback buffer.	1631	this many lines into the scrollback buffer.
742		1632
743	=item $term->want_refresh	1633	=item $term->want_refresh
744		1634
745	Requests a screen refresh. At the next opportunity, rxvt-unicode will	1635	Requests a screen refresh. At the next opportunity, rxvt-unicode will
…		…
748		1638
749	Used after changing terminal contents to display them.	1639	Used after changing terminal contents to display them.
750		1640
751	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])	1641	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
752		1642
753	Returns the text of the entire row with number C<$row_number>. Row C<0>	1643	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	1644	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	1645	terminal line. Nothing will be returned if a nonexistent line
757	is requested.	1646	is requested.
758		1647
759	If C<$new_text> is specified, it will replace characters in the current	1648	If C<$new_text> is specified, it will replace characters in the current
760	line, starting at column C<$start_col> (default C<0>), which is useful	1649	line, starting at column C<$start_col> (default C<0>), which is useful
761	to replace only parts of a line. The font index in the rendition will	1650	to replace only parts of a line. The font index in the rendition will
762	automatically be updated.	1651	automatically be updated.
763		1652
764	C<$text> is in a special encoding: tabs and wide characters that use more	1653	C<$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	1654	than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
766	(C<chr 65535>). Characters with combining characters and other characters	1655	characters. Characters with combining characters and other characters that
767	that do not fit into the normal tetx encoding will be replaced with	1656	do not fit into the normal text encoding will be replaced with characters
768	characters in the private use area.	1657	in the private use area.
769		1658
770	You have to obey this encoding when changing text. The advantage is	1659	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	1660	that C<substr> and similar functions work on screen cells and not on
772	characters.	1661	characters.
773		1662
…		…
824	Return the row number of the first/last row of the line, respectively.	1713	Return the row number of the first/last row of the line, respectively.
825		1714
826	=item $offset = $line->offset_of ($row, $col)	1715	=item $offset = $line->offset_of ($row, $col)
827		1716
828	Returns the character offset of the given row|col pair within the logical	1717	Returns the character offset of the given row|col pair within the logical
829	line.	1718	line. Works for rows outside the line, too, and returns corresponding
		1719	offsets outside the string.
830		1720
831	=item ($row, $col) = $line->coord_of ($offset)	1721	=item ($row, $col) = $line->coord_of ($offset)
832		1722
833	Translates a string offset into terminal coordinates again.	1723	Translates a string offset into terminal coordinates again.
834		1724
835	=back	1725	=back
836		1726
837	=cut	1727	=cut
838		1728
839	sub urxvt::term::line {	1729	sub line {
840	my ($self, $row) = @_;	1730	my ($self, $row) = @_;
841		1731
842	my $maxrow = $self->nrow - 1;	1732	my $maxrow = $self->nrow - 1;
843		1733
844	my ($beg, $end) = ($row, $row);	1734	my ($beg, $end) = ($row, $row);
…		…
856	}	1746	}
857		1747
858	sub urxvt::line::t {	1748	sub urxvt::line::t {
859	my ($self) = @_;	1749	my ($self) = @_;
860		1750
861	if (@_ > 1)	1751	if (@_ > 1) {
862	{
863	$self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})	1752	$self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
864	for $self->{beg} .. $self->{end};	1753	for $self->{beg} .. $self->{end};
865	}	1754	}
866		1755
867	defined wantarray &&	1756	defined wantarray &&
868	substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),	1757	substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),
869	0, $self->{len}	1758	0, $self->{len}
870	}	1759	}
871		1760
872	sub urxvt::line::r {	1761	sub urxvt::line::r {
873	my ($self) = @_;	1762	my ($self) = @_;
874		1763
875	if (@_ > 1)	1764	if (@_ > 1) {
876	{
877	$self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})	1765	$self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
878	for $self->{beg} .. $self->{end};	1766	for $self->{beg} .. $self->{end};
879	}	1767	}
880		1768
881	if (defined wantarray) {	1769	if (defined wantarray) {
882	my $rend = [	1770	my $rend = [
883	map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}	1771	map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}
884	];	1772	];
…		…
908	$offset / $self->{ncol} + $self->{beg},	1796	$offset / $self->{ncol} + $self->{beg},
909	$offset % $self->{ncol}	1797	$offset % $self->{ncol}
910	)	1798	)
911	}	1799	}
912		1800
913	=item ($row, $col) = $line->coord_of ($offset)
914	=item $text = $term->special_encode $string	1801	=item $text = $term->special_encode $string
915		1802
916	Converts a perl string into the special encoding used by rxvt-unicode,	1803	Converts a perl string into the special encoding used by rxvt-unicode,
917	where one character corresponds to one screen cell. See	1804	where one character corresponds to one screen cell. See
918	C<< $term->ROW_t >> for details.	1805	C<< $term->ROW_t >> for details.
919		1806
920	=item $string = $term->special_decode $text	1807	=item $string = $term->special_decode $text
921		1808
922	Converts rxvt-unicodes text reprsentation into a perl string. See	1809	Converts rxvt-unicodes text representation into a perl string. See
923	C<< $term->ROW_t >> for details.	1810	C<< $term->ROW_t >> for details.
924		1811
		1812	=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
		1813
		1814	=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
		1815
		1816	Register/unregister a synchronous button grab. See the XGrabButton
		1817	manpage.
		1818
		1819	=item $success = $term->grab ($eventtime[, $sync])
		1820
		1821	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
		1822	synchronous (C<$sync> is true). Also remembers the grab timestamp.
		1823
		1824	=item $term->allow_events_async
		1825
		1826	Calls XAllowEvents with AsyncBoth for the most recent grab.
		1827
		1828	=item $term->allow_events_sync
		1829
		1830	Calls XAllowEvents with SyncBoth for the most recent grab.
		1831
		1832	=item $term->allow_events_replay
		1833
		1834	Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
		1835	recent grab.
		1836
		1837	=item $term->ungrab
		1838
		1839	Calls XUngrabPointer and XUngrabKeyboard for the most recent grab. Is called automatically on
		1840	evaluation errors, as it is better to lose the grab in the error case as
		1841	the session.
		1842
		1843	=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
		1844
		1845	=item $atom_name = $term->XGetAtomName ($atom)
		1846
		1847	=item @atoms = $term->XListProperties ($window)
		1848
		1849	=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
		1850
		1851	=item $term->XChangeProperty ($window, $property, $type, $format, $octets)
		1852
		1853	=item $term->XDeleteProperty ($window, $property)
		1854
		1855	=item $window = $term->DefaultRootWindow
		1856
		1857	=item $term->XReparentWindow ($window, $parent, [$x, $y])
		1858
		1859	=item $term->XMapWindow ($window)
		1860
		1861	=item $term->XUnmapWindow ($window)
		1862
		1863	=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
		1864
		1865	=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
		1866
		1867	=item $term->XChangeInput ($window, $add_events[, $del_events])
		1868
		1869	=item $keysym = $term->XStringToKeysym ($string)
		1870
		1871	=item $string = $term->XKeysymToString ($keysym)
		1872
		1873	Various X or X-related functions. The C<$term> object only serves as
		1874	the source of the display, otherwise those functions map more-or-less
		1875	directly onto the X functions of the same name.
		1876
925	=back	1877	=back
		1878
		1879	=cut
		1880
		1881	package urxvt::popup;
		1882
		1883	=head2 The C<urxvt::popup> Class
		1884
		1885	=over 4
		1886
		1887	=cut
		1888
		1889	sub add_item {
		1890	my ($self, $item) = @_;
		1891
		1892	$item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal};
		1893	$item->{rend}{hover} = "\x1b[0;30;46m" unless exists $item->{rend}{hover};
		1894	$item->{rend}{active} = "\x1b[m" unless exists $item->{rend}{active};
		1895
		1896	$item->{render} ||= sub { $_[0]{text} };
		1897
		1898	push @{ $self->{item} }, $item;
		1899	}
		1900
		1901	=item $popup->add_title ($title)
		1902
		1903	Adds a non-clickable title to the popup.
		1904
		1905	=cut
		1906
		1907	sub add_title {
		1908	my ($self, $title) = @_;
		1909
		1910	$self->add_item ({
		1911	rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
		1912	text => $title,
		1913	activate => sub { },
		1914	});
		1915	}
		1916
		1917	=item $popup->add_separator ([$sepchr])
		1918
		1919	Creates a separator, optionally using the character given as C<$sepchr>.
		1920
		1921	=cut
		1922
		1923	sub add_separator {
		1924	my ($self, $sep) = @_;
		1925
		1926	$sep ||= "=";
		1927
		1928	$self->add_item ({
		1929	rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
		1930	text => "",
		1931	render => sub { $sep x $self->{term}->ncol },
		1932	activate => sub { },
		1933	});
		1934	}
		1935
		1936	=item $popup->add_button ($text, $cb)
		1937
		1938	Adds a clickable button to the popup. C<$cb> is called whenever it is
		1939	selected.
		1940
		1941	=cut
		1942
		1943	sub add_button {
		1944	my ($self, $text, $cb) = @_;
		1945
		1946	$self->add_item ({ type => "button", text => $text, activate => $cb});
		1947	}
		1948
		1949	=item $popup->add_toggle ($text, $initial_value, $cb)
		1950
		1951	Adds a toggle/checkbox item to the popup. The callback gets called
		1952	whenever it gets toggled, with a boolean indicating its new value as its
		1953	first argument.
		1954
		1955	=cut
		1956
		1957	sub add_toggle {
		1958	my ($self, $text, $value, $cb) = @_;
		1959
		1960	my $item; $item = {
		1961	type => "button",
		1962	text => " $text",
		1963	value => $value,
		1964	render => sub { ($_[0]{value} ? "* " : " ") . $text },
		1965	activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
		1966	};
		1967
		1968	$self->add_item ($item);
		1969	}
		1970
		1971	=item $popup->show
		1972
		1973	Displays the popup (which is initially hidden).
		1974
		1975	=cut
		1976
		1977	sub show {
		1978	my ($self) = @_;
		1979
		1980	local $urxvt::popup::self = $self;
		1981
		1982	my $env = $self->{term}->env;
		1983	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
		1984	delete $env->{LC_ALL};
		1985	$env->{LC_CTYPE} = $self->{term}->locale;
		1986
		1987	my $term = urxvt::term->new (
		1988	$env, "popup",
		1989	"--perl-lib" => "", "--perl-ext-common" => "",
		1990	"-pty-fd" => -1, "-sl" => 0,
		1991	"-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
		1992	"--transient-for" => $self->{term}->parent,
		1993	"-display" => $self->{term}->display_id,
		1994	"-pe" => "urxvt-popup",
		1995	) or die "unable to create popup window\n";
		1996
		1997	unless (delete $term->{urxvt_popup_init_done}) {
		1998	$term->ungrab;
		1999	$term->destroy;
		2000	die "unable to initialise popup window\n";
		2001	}
		2002	}
		2003
		2004	sub DESTROY {
		2005	my ($self) = @_;
		2006
		2007	delete $self->{term}{_destroy}{$self};
		2008	$self->{term}->ungrab;
		2009	}
		2010
		2011	=back
		2012
		2013	=cut
		2014
		2015	package urxvt::watcher;
926		2016
927	=head2 The C<urxvt::timer> Class	2017	=head2 The C<urxvt::timer> Class
928		2018
929	This class implements timer watchers/events. Time is represented as a	2019	This class implements timer watchers/events. Time is represented as a
930	fractional number of seconds since the epoch. Example:	2020	fractional number of seconds since the epoch. Example:
…		…
934	->new	2024	->new
935	->interval (1)	2025	->interval (1)
936	->cb (sub {	2026	->cb (sub {
937	$term->{overlay}->set (0, 0,	2027	$term->{overlay}->set (0, 0,
938	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);	2028	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
939	});	2029	});
940		2030
941	=over 4	2031	=over 4
942		2032
943	=item $timer = new urxvt::timer	2033	=item $timer = new urxvt::timer
944		2034
…		…
947		2037
948	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })	2038	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })
949		2039
950	Set the callback to be called when the timer triggers.	2040	Set the callback to be called when the timer triggers.
951		2041
952	=item $tstamp = $timer->at
953
954	Return the time this watcher will fire next.
955
956	=item $timer = $timer->set ($tstamp)	2042	=item $timer = $timer->set ($tstamp[, $interval])
957		2043
958	Set the time the event is generated to $tstamp.	2044	Set the time the event is generated to $tstamp (and optionally specifies a
		2045	new $interval).
959		2046
960	=item $timer = $timer->interval ($interval)	2047	=item $timer = $timer->interval ($interval)
961		2048
962	Normally (and when C<$interval> is C<0>), the timer will automatically	2049	By default (and when C<$interval> is C<0>), the timer will automatically
963	stop after it has fired once. If C<$interval> is non-zero, then the timer	2050	stop after it has fired once. If C<$interval> is non-zero, then the timer
964	is automatically rescheduled at the given intervals.	2051	is automatically rescheduled at the given intervals.
965		2052
966	=item $timer = $timer->start	2053	=item $timer = $timer->start
967		2054
968	Start the timer.	2055	Start the timer.
969		2056
970	=item $timer = $timer->start ($tstamp)	2057	=item $timer = $timer->start ($tstamp[, $interval])
971		2058
972	Set the event trigger time to C<$tstamp> and start the timer.	2059	Set the event trigger time to C<$tstamp> and start the timer. Optionally
		2060	also replaces the interval.
		2061
		2062	=item $timer = $timer->after ($delay[, $interval])
		2063
		2064	Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
973		2065
974	=item $timer = $timer->stop	2066	=item $timer = $timer->stop
975		2067
976	Stop the timer.	2068	Stop the timer.
977		2069
…		…
983		2075
984	$term->{socket} = ...	2076	$term->{socket} = ...
985	$term->{iow} = urxvt::iow	2077	$term->{iow} = urxvt::iow
986	->new	2078	->new
987	->fd (fileno $term->{socket})	2079	->fd (fileno $term->{socket})
988	->events (1) # wait for read data	2080	->events (urxvt::EV_READ)
989	->start	2081	->start
990	->cb (sub {	2082	->cb (sub {
991	my ($iow, $revents) = @_;	2083	my ($iow, $revents) = @_;
992	# $revents must be 1 here, no need to check	2084	# $revents must be 1 here, no need to check
993	sysread $term->{socket}, my $buf, 8192	2085	sysread $term->{socket}, my $buf, 8192
…		…
1006	Set the callback to be called when io events are triggered. C<$reventmask>	2098	Set the callback to be called when io events are triggered. C<$reventmask>
1007	is a bitset as described in the C<events> method.	2099	is a bitset as described in the C<events> method.
1008		2100
1009	=item $iow = $iow->fd ($fd)	2101	=item $iow = $iow->fd ($fd)
1010		2102
1011	Set the filedescriptor (not handle) to watch.	2103	Set the file descriptor (not handle) to watch.
1012		2104
1013	=item $iow = $iow->events ($eventmask)	2105	=item $iow = $iow->events ($eventmask)
1014		2106
1015	Set the event mask to watch. Bit #0 (value C<1>) enables watching for read	2107	Set the event mask to watch. The only allowed values are
1016	data, Bit #1 (value C<2>) enables watching for write data.	2108	C<urxvt::EV_READ> and C<urxvt::EV_WRITE>, which might be ORed
		2109	together, or C<urxvt::EV_NONE>.
1017		2110
1018	=item $iow = $iow->start	2111	=item $iow = $iow->start
1019		2112
1020	Start watching for requested events on the given handle.	2113	Start watching for requested events on the given handle.
1021		2114
1022	=item $iow = $iow->stop	2115	=item $iow = $iow->stop
1023		2116
1024	Stop watching for events on the given filehandle.	2117	Stop watching for events on the given file handle.
		2118
		2119	=back
		2120
		2121	=head2 The C<urxvt::iw> Class
		2122
		2123	This class implements idle watchers, that get called automatically when
		2124	the process is idle. They should return as fast as possible, after doing
		2125	some useful work.
		2126
		2127	=over 4
		2128
		2129	=item $iw = new urxvt::iw
		2130
		2131	Create a new idle watcher object in stopped state.
		2132
		2133	=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
		2134
		2135	Set the callback to be called when the watcher triggers.
		2136
		2137	=item $timer = $timer->start
		2138
		2139	Start the watcher.
		2140
		2141	=item $timer = $timer->stop
		2142
		2143	Stop the watcher.
		2144
		2145	=back
		2146
		2147	=head2 The C<urxvt::pw> Class
		2148
		2149	This class implements process watchers. They create an event whenever a
		2150	process exits, after which they stop automatically.
		2151
		2152	my $pid = fork;
		2153	...
		2154	$term->{pw} = urxvt::pw
		2155	->new
		2156	->start ($pid)
		2157	->cb (sub {
		2158	my ($pw, $exit_status) = @_;
		2159	...
		2160	});
		2161
		2162	=over 4
		2163
		2164	=item $pw = new urxvt::pw
		2165
		2166	Create a new process watcher in stopped state.
		2167
		2168	=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
		2169
		2170	Set the callback to be called when the timer triggers.
		2171
		2172	=item $pw = $timer->start ($pid)
		2173
		2174	Tells the watcher to start watching for process C<$pid>.
		2175
		2176	=item $pw = $pw->stop
		2177
		2178	Stop the watcher.
1025		2179
1026	=back	2180	=back
1027		2181
1028	=head1 ENVIRONMENT	2182	=head1 ENVIRONMENT
1029		2183
…		…
1032	This variable controls the verbosity level of the perl extension. Higher	2186	This variable controls the verbosity level of the perl extension. Higher
1033	numbers indicate more verbose output.	2187	numbers indicate more verbose output.
1034		2188
1035	=over 4	2189	=over 4
1036		2190
1037	=item =0 - only fatal messages	2191	=item == 0 - fatal messages
1038		2192
1039	=item =3 - script loading and management	2193	=item >= 3 - script loading and management
1040		2194
1041	=item =10 - all events received	2195	=item >=10 - all called hooks
		2196
		2197	=item >=11 - hook return values
1042		2198
1043	=back	2199	=back
1044		2200
1045	=head1 AUTHOR	2201	=head1 AUTHOR
1046		2202
1047	Marc Lehmann <pcg@goof.com>	2203	Marc Lehmann <schmorp@schmorp.de>
1048	http://software.schmorp.de/pkg/rxvt-unicode	2204	http://software.schmorp.de/pkg/rxvt-unicode
1049		2205
1050	=cut	2206	=cut
1051		2207
1052	1	2208	1
		2209
		2210	# vim: sw=3:

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