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Comparing rxvt-unicode/src/urxvt.pm (file contents):
Revision 1.30 by root, Wed Jan 4 05:35:34 2006 UTC vs.
Revision 1.97 by elmex, Tue Jan 17 16:53:47 2006 UTC

…		…
17		17
18	@@RXVT_NAME@@ --perl-lib $HOME -pe grab_test	18	@@RXVT_NAME@@ --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	Everytime 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' 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 @@RXVT_NAME@@d, 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	=head1 PREPACKAGED EXTENSIONS
32		32
33	This section describes the extensiosn delivered with this version. You can	33	This section describes the extensions delivered with this release. You can
34	find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.	34	find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.
35		35
36	You can activate them like this:	36	You can activate them like this:
37		37
38	@@RXVT_NAME@@ -pe <extensionname>	38	@@RXVT_NAME@@ -pe <extensionname>
39		39
40	=over 4	40	=over 4
41		41
42	=item selection	42	=item selection (enabled by default)
43		43
44	Intelligent selection. This extension tries to be more intelligent when	44	(More) intelligent selection. This extension tries to be more intelligent
45	the user extends selections (double-click). Right now, it tries to select	45	when the user extends selections (double-click and further clicks). Right
46	urls and complete shell-quoted arguments, which is very convenient, too,	46	now, it tries to select words, urls and complete shell-quoted
47	if your F<ls> supports C<--quoting-style=shell>.	47	arguments, which is very convenient, too, if your F<ls> supports
		48	C<--quoting-style=shell>.
48		49
49	It also offers the following bindable event:	50	A double-click usually selects the word under the cursor, further clicks
		51	will enlarge the selection.
		52
		53	The selection works by trying to match a number of regexes and displaying
		54	them in increasing order of length. You can add your own regexes by
		55	specifying resources of the form:
		56
		57	URxvt.selection.pattern-0: perl-regex
		58	URxvt.selection.pattern-1: perl-regex
		59	...
		60
		61	The index number (0, 1...) must not have any holes, and each regex must
		62	contain at least one pair of capturing parentheses, which will be used for
		63	the match. For example, the followign adds a regex that matches everything
		64	between two vertical bars:
		65
		66	URxvt.selection.pattern-0: \\|([^|]+)\\|
		67
		68	You can look at the source of the selection extension to see more
		69	interesting uses, such as parsing a line from beginning to end.
		70
		71	This extension also offers following bindable keyboard commands:
50		72
51	=over 4	73	=over 4
52		74
53	=item rot13	75	=item rot13
54		76
55	Rot-13 the selection when activated. Used via keyboard trigger:	77	Rot-13 the selection when activated. Used via keyboard trigger:
56		78
57	URxvt.keysym.C-M-r: perl:selection:rot13	79	URxvt.keysym.C-M-r: perl:selection:rot13
58		80
59	=back	81	=back
		82
		83	=item option-popup (enabled by default)
		84
		85	Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at
		86	runtime.
		87
		88	=item selection-popup (enabled by default)
		89
		90	Binds a popup menu to Ctrl-Button3 that lets you convert the selection
		91	text into various other formats/action (such as uri unescaping, perl
		92	evalution, web-browser starting etc.), depending on content.
		93
		94	=item searchable-scrollback<hotkey> (enabled by default)
		95
		96	Adds regex search functionality to the scrollback buffer, triggered
		97	by a hotkey (default: C<M-s>). While in search mode, normal terminal
		98	input/output is suspended and a regex is displayed at the bottom of the
		99	screen.
		100
		101	Inputting characters appends them to the regex and continues incremental
		102	search. C<BackSpace> removes a character from the regex, C<Up> and C<Down>
		103	search upwards/downwards in the scrollback buffer, C<End> jumps to the
		104	bottom. C<Escape> leaves search mode and returns to the point where search
		105	was started, while C<Enter> or C<Return> stay at the current position and
		106	additionally stores the first match in the current line into the primary
		107	selection.
		108
		109	=item selection-autotransform
		110
		111	This selection allows you to do automatic transforms on a selection
		112	whenever a selection is made.
		113
		114	It works by specifying perl snippets (most useful is a single C<s///>
		115	operator) that modify C<$_> as resources:
		116
		117	URxvt.selection-autotransform.0: transform
		118	URxvt.selection-autotransform.1: transform
		119	...
		120
		121	For example, the following will transform selections of the form
		122	C<filename:number>, often seen in compiler messages, into C<vi +$filename
		123	$word>:
		124
		125	URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
		126
		127	And this example matches the same,but replaces it with vi-commands you can
		128	paste directly into your (vi :) editor:
		129
		130	URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/\\x1b:e \\Q$1\\E\\x0d:$2\\x0d/
		131
		132	Of course, this can be modified to suit your needs and your editor :)
		133
		134	To expand the example above to typical perl error messages ("XXX at
		135	FILENAME line YYY."), you need a slightly more elaborate solution:
		136
		137	URxvt.selection.pattern-0: ( at .*? line \\d+\\.)
		138	URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)\\.$/\x1b:e \\Q$1\E\\x0d:$2\\x0d/
		139
		140	The first line tells the selection code to treat the unchanging part of
		141	every error message as a selection pattern, and the second line transforms
		142	the message into vi commands to load the file.
		143
		144	=item mark-urls
		145
		146	Uses per-line display filtering (C<on_line_update>) to underline urls and
		147	make them clickable. When middle-clicked, the program specified in the
		148	resource C<urlLauncher> (default C<x-www-browser>) will be started with
		149	the URL as first argument.
		150
		151	=item block-graphics-to-ascii
		152
		153	A not very useful example of filtering all text output to the terminal,
		154	by replacing all line-drawing characters (U+2500 .. U+259F) by a
		155	similar-looking ascii character.
60		156
61	=item digital-clock	157	=item digital-clock
62		158
63	Displays a digital clock using the built-in overlay.	159	Displays a digital clock using the built-in overlay.
64		160
…		…
66		162
67	Displays a very simple digital clock in the upper right corner of the	163	Displays a very simple digital clock in the upper right corner of the
68	window. Illustrates overwriting the refresh callbacks to create your own	164	window. Illustrates overwriting the refresh callbacks to create your own
69	overlays or changes.	165	overlays or changes.
70		166
		167	=item selection-pastebin
		168
		169	Uploads the selection as textfile to a remote site.
		170
		171	URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
		172
		173	To set the command to upload the file set this resource:
		174
		175	URxvt.selection-pastebin-cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
		176
		177	The % is the placeholder for the textfile. The name of the textfile is the hex encoded
		178	md5 sum of the selection.
		179	After an successful upload the selection will be replaced by the following url
		180	(the % is the placeholder for the filename):
		181
		182	URxvt.selection-pastebin-url: http://www.ta-sa.org/files/txt/%
		183
71	=back	184	=back
		185
		186	=head1 API DOCUMENTATION
72		187
73	=head2 General API Considerations	188	=head2 General API Considerations
74		189
75	All objects (such as terminals, time watchers etc.) are typical	190	All objects (such as terminals, time watchers etc.) are typical
76	reference-to-hash objects. The hash can be used to store anything you	191	reference-to-hash objects. The hash can be used to store anything you
…		…
81	When objects are destroyed on the C++ side, the perl object hashes are	196	When objects are destroyed on the C++ side, the perl object hashes are
82	emptied, so its best to store related objects such as time watchers and	197	emptied, so its best to store related objects such as time watchers and
83	the like inside the terminal object so they get destroyed as soon as the	198	the like inside the terminal object so they get destroyed as soon as the
84	terminal is destroyed.	199	terminal is destroyed.
85		200
		201	Argument names also often indicate the type of a parameter. Here are some
		202	hints on what they mean:
		203
		204	=over 4
		205
		206	=item $text
		207
		208	Rxvt-unicodes special way of encoding text, where one "unicode" character
		209	always represents one screen cell. See L<ROW_t> for a discussion of this format.
		210
		211	=item $string
		212
		213	A perl text string, with an emphasis on I<text>. It can store all unicode
		214	characters and is to be distinguished with text encoded in a specific
		215	encoding (often locale-specific) and binary data.
		216
		217	=item $octets
		218
		219	Either binary data or - more common - a text string encoded in a
		220	locale-specific way.
		221
		222	=back
		223
		224	=head2 Extension Objects
		225
		226	Very perl extension is a perl class. A separate perl object is created
		227	for each terminal and each extension and passed as the first parameter to
		228	hooks. So extensions can use their C<$self> object without having to think
		229	about other extensions, with the exception of methods and members that
		230	begin with an underscore character C<_>: these are reserved for internal
		231	use.
		232
		233	Although it isn't a C<urxvt::term> object, you can call all methods of the
		234	C<urxvt::term> class on this object.
		235
		236	It has the following methods and data members:
		237
		238	=over 4
		239
		240	=item $urxvt_term = $self->{term}
		241
		242	Returns the C<urxvt::term> object associated with this instance of the
		243	extension. This member I<must not> be changed in any way.
		244
		245	=item $self->enable ($hook_name => $cb, [$hook_name => $cb..])
		246
		247	Dynamically enable the given hooks (named without the C<on_> prefix) for
		248	this extension, replacing any previous hook. This is useful when you want
		249	to overwrite time-critical hooks only temporarily.
		250
		251	=item $self->disable ($hook_name[, $hook_name..])
		252
		253	Dynamically disable the given hooks.
		254
		255	=back
		256
86	=head2 Hooks	257	=head2 Hooks
87		258
88	The following subroutines can be declared in loaded scripts, and will be	259	The following subroutines can be declared in extension files, and will be
89	called whenever the relevant event happens.	260	called whenever the relevant event happens.
90		261
91	The first argument passed to them is an object private to each terminal	262	The first argument passed to them is an extension oject as described in
92	and extension package. You can call all C<urxvt::term> methods on it, but	263	the in the C<Extension Objects> section.
93	its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
94	object that is shared between all packages is stored in the C<term>
95	member.
96		264
97	All of them must return a boolean value. If it is true, then the event	265	B<All> of these hooks must return a boolean value. If it is true, then the
98	counts as being I<consumed>, and the invocation of other hooks is skipped,	266	event counts as being I<consumed>, and the invocation of other hooks is
99	and the relevant action might not be carried out by the C++ code.	267	skipped, and the relevant action might not be carried out by the C++ code.
100		268
101	When in doubt, return a false value (preferably C<()>).	269	I<< When in doubt, return a false value (preferably C<()>). >>
102		270
103	=over 4	271	=over 4
104		272
105	=item on_init $term	273	=item on_init $term
106		274
107	Called after a new terminal object has been initialized, but before	275	Called after a new terminal object has been initialized, but before
108	windows are created or the command gets run.	276	windows are created or the command gets run. Most methods are unsafe to
		277	call or deliver senseless data, as terminal size and other characteristics
		278	have not yet been determined. You can safely query and change resources,
		279	though.
109		280
110	=item on_reset $term	281	=item on_reset $term
111		282
112	Called after the screen is "reset" for any reason, such as resizing or	283	Called after the screen is "reset" for any reason, such as resizing or
113	control sequences. Here is where you can react on changes to size-related	284	control sequences. Here is where you can react on changes to size-related
…		…
138	=item on_sel_extend $term	309	=item on_sel_extend $term
139		310
140	Called whenever the user tries to extend the selection (e.g. with a double	311	Called whenever the user tries to extend the selection (e.g. with a double
141	click) and is either supposed to return false (normal operation), or	312	click) and is either supposed to return false (normal operation), or
142	should extend the selection itelf and return true to suppress the built-in	313	should extend the selection itelf and return true to suppress the built-in
143	processing.	314	processing. This can happen multiple times, as long as the callback
		315	returns true, it will be called on every further click by the user and is
		316	supposed to enlarge the selection more and more, if possible.
144		317
145	See the F<selection> example extension.	318	See the F<selection> example extension.
146
147	=item on_focus_in $term
148
149	Called whenever the window gets the keyboard focus, before urxvt does
150	focus in processing.
151
152	=item on_focus_out $term
153
154	Called wheneever the window loses keyboard focus, before urxvt does focus
155	out processing.
156		319
157	=item on_view_change $term, $offset	320	=item on_view_change $term, $offset
158		321
159	Called whenever the view offset changes, i..e the user or program	322	Called whenever the view offset changes, i..e the user or program
160	scrolls. Offset C<0> means display the normal terminal, positive values	323	scrolls. Offset C<0> means display the normal terminal, positive values
…		…
167	than the scroll back buffer or the terminal.	330	than the scroll back buffer or the terminal.
168		331
169	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,	332	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
170	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total	333	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
171	number of lines that will be in the scrollback buffer.	334	number of lines that will be in the scrollback buffer.
172
173	=item on_tty_activity $term *NYI*
174
175	Called whenever the program(s) running in the urxvt window send output.
176		335
177	=item on_osc_seq $term, $string	336	=item on_osc_seq $term, $string
178		337
179	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =	338	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
180	operating system command) is processed. Cursor position and other state	339	operating system command) is processed. Cursor position and other state
…		…
185		344
186	Be careful not ever to trust (in a security sense) the data you receive,	345	Be careful not ever to trust (in a security sense) the data you receive,
187	as its source can not easily be controleld (e-mail content, messages from	346	as its source can not easily be controleld (e-mail content, messages from
188	other users on the same system etc.).	347	other users on the same system etc.).
189		348
		349	=item on_add_lines $term, $string
		350
		351	Called whenever text is about to be output, with the text as argument. You
		352	can filter/change and output the text yourself by returning a true value
		353	and calling C<< $term->scr_add_lines >> yourself. Please note that this
		354	might be very slow, however, as your hook is called for B<all> text being
		355	output.
		356
		357	=item on_tt_write $term, $octets
		358
		359	Called whenever some data is written to the tty/pty and can be used to
		360	suppress or filter tty input.
		361
		362	=item on_line_update $term, $row
		363
		364	Called whenever a line was updated or changed. Can be used to filter
		365	screen output (e.g. underline urls or other useless stuff). Only lines
		366	that are being shown will be filtered, and, due to performance reasons,
		367	not always immediately.
		368
		369	The row number is always the topmost row of the line if the line spans
		370	multiple rows.
		371
		372	Please note that, if you change the line, then the hook might get called
		373	later with the already-modified line (e.g. if unrelated parts change), so
		374	you cannot just toggle rendition bits, but only set them.
		375
190	=item on_refresh_begin $term	376	=item on_refresh_begin $term
191		377
192	Called just before the screen gets redrawn. Can be used for overlay	378	Called just before the screen gets redrawn. Can be used for overlay
193	or similar effects by modify terminal contents in refresh_begin, and	379	or similar effects by modify terminal contents in refresh_begin, and
194	restoring them in refresh_end. The built-in overlay and selection display	380	restoring them in refresh_end. The built-in overlay and selection display
…		…
202		388
203	Called whenever the user presses a key combination that has a	389	Called whenever the user presses a key combination that has a
204	C<perl:string> action bound to it (see description of the B<keysym>	390	C<perl:string> action bound to it (see description of the B<keysym>
205	resource in the @@RXVT_NAME@@(1) manpage).	391	resource in the @@RXVT_NAME@@(1) manpage).
206		392
		393	=item on_x_event $term, $event
		394
		395	Called on every X event received on the vt window (and possibly other
		396	windows). Should only be used as a last resort. Most event structure
		397	members are not passed.
		398
		399	=item on_focus_in $term
		400
		401	Called whenever the window gets the keyboard focus, before rxvt-unicode
		402	does focus in processing.
		403
		404	=item on_focus_out $term
		405
		406	Called wheneever the window loses keyboard focus, before rxvt-unicode does
		407	focus out processing.
		408
		409	=item on_key_press $term, $event, $keysym, $octets
		410
		411	=item on_key_release $term, $event, $keysym
		412
		413	=item on_button_press $term, $event
		414
		415	=item on_button_release $term, $event
		416
		417	=item on_motion_notify $term, $event
		418
		419	=item on_map_notify $term, $event
		420
		421	=item on_unmap_notify $term, $event
		422
		423	Called whenever the corresponding X event is received for the terminal If
		424	the hook returns true, then the even will be ignored by rxvt-unicode.
		425
		426	The event is a hash with most values as named by Xlib (see the XEvent
		427	manpage), with the additional members C<row> and C<col>, which are the row
		428	and column under the mouse cursor.
		429
		430	C<on_key_press> additionally receives the string rxvt-unicode would
		431	output, if any, in locale-specific encoding.
		432
		433	subwindow.
		434
207	=back	435	=back
208		436
		437	=cut
		438
		439	package urxvt;
		440
		441	use utf8;
		442	use strict;
		443	use Carp ();
		444	use Scalar::Util ();
		445	use List::Util ();
		446
		447	our $VERSION = 1;
		448	our $TERM;
		449	our @HOOKNAME;
		450	our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
		451	our %OPTION;
		452
		453	our $LIBDIR;
		454	our $RESNAME;
		455	our $RESCLASS;
		456	our $RXVTNAME;
		457
209	=head2 Variables in the C<urxvt> Package	458	=head2 Variables in the C<urxvt> Package
210		459
211	=over 4	460	=over 4
212		461
		462	=item $urxvt::LIBDIR
		463
		464	The rxvt-unicode library directory, where, among other things, the perl
		465	modules and scripts are stored.
		466
		467	=item $urxvt::RESCLASS, $urxvt::RESCLASS
		468
		469	The resource class and name rxvt-unicode uses to look up X resources.
		470
		471	=item $urxvt::RXVTNAME
		472
		473	The basename of the installed binaries, usually C<urxvt>.
		474
213	=item $urxvt::TERM	475	=item $urxvt::TERM
214		476
215	The current terminal. Whenever a callback/Hook is bein executed, this	477	The current terminal. This variable stores the current C<urxvt::term>
216	variable stores the current C<urxvt::term> object.	478	object, whenever a callback/hook is executing.
217		479
218	=back	480	=back
219		481
220	=head2 Functions in the C<urxvt> Package	482	=head2 Functions in the C<urxvt> Package
221		483
…		…
234	that calls this function.	496	that calls this function.
235		497
236	Using this function has the advantage that its output ends up in the	498	Using this function has the advantage that its output ends up in the
237	correct place, e.g. on stderr of the connecting urxvtc client.	499	correct place, e.g. on stderr of the connecting urxvtc client.
238		500
		501	Messages have a size limit of 1023 bytes currently.
		502
239	=item $time = urxvt::NOW	503	=item $time = urxvt::NOW
240		504
241	Returns the "current time" (as per the event loop).	505	Returns the "current time" (as per the event loop).
		506
		507	=item urxvt::CurrentTime
		508
		509	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
		510	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
		511	Button4Mask, Button5Mask, AnyModifier
		512
		513	=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
		514	ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
		515	PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
		516	Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
		517	KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
		518	ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
		519	FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
		520
		521	=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
		522	EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
		523	GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
		524	UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
		525	ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
		526	CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
		527	SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
		528
		529	Various constants for use in X calls and event processing.
242		530
243	=back	531	=back
244		532
245	=head2 RENDITION	533	=head2 RENDITION
246		534
…		…
273		561
274	=item $background = urxvt::GET_BASEBG $rend	562	=item $background = urxvt::GET_BASEBG $rend
275		563
276	Return the foreground/background colour index, respectively.	564	Return the foreground/background colour index, respectively.
277		565
278	=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)	566	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
279		567
280	=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)	568	=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
281		569
282	Replace the foreground/background colour in the rendition mask with the	570	Replace the foreground/background colour in the rendition mask with the
283	specified one.	571	specified one.
284		572
285	=item $value = urxvt::GET_CUSTOM ($rend)	573	=item $value = urxvt::GET_CUSTOM $rend
286		574
287	Return the "custom" value: Every rendition has 5 bits for use by	575	Return the "custom" value: Every rendition has 5 bits for use by
288	extensions. They can be set and changed as you like and are initially	576	extensions. They can be set and changed as you like and are initially
289	zero.	577	zero.
290		578
291	=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)	579	=item $rend = urxvt::SET_CUSTOM $rend, $new_value
292		580
293	Change the custom value.	581	Change the custom value.
294		582
295	=back	583	=back
296		584
297	=cut	585	=cut
298
299	package urxvt;
300
301	use strict;
302	use Scalar::Util ();
303
304	our $TERM;
305	our @HOOKNAME;
306	our $LIBDIR;
307		586
308	BEGIN {	587	BEGIN {
309	urxvt->bootstrap;	588	urxvt->bootstrap;
310		589
311	# overwrite perl's warn	590	# overwrite perl's warn
…		…
313	my $msg = join "", @_;	592	my $msg = join "", @_;
314	$msg .= "\n"	593	$msg .= "\n"
315	unless $msg =~ /\n$/;	594	unless $msg =~ /\n$/;
316	urxvt::warn ($msg);	595	urxvt::warn ($msg);
317	};	596	};
318	}
319		597
320	my @hook_count;	598	# %ENV is the original startup environment
		599	delete $ENV{IFS};
		600	delete $ENV{CDPATH};
		601	delete $ENV{BASH_ENV};
		602	$ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
		603	}
		604
321	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};	605	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
322		606
323	sub verbose {	607	sub verbose {
324	my ($level, $msg) = @_;	608	my ($level, $msg) = @_;
325	warn "$msg\n" if $level <= $verbosity;	609	warn "$msg\n" if $level <= $verbosity;
326	}	610	}
327		611
328	# find on_xxx subs in the package and register them	612	my $extension_pkg = "extension0000";
329	# as hooks	613	my %extension_pkg;
330	sub register_package($) {
331	my ($pkg) = @_;
332
333	for my $htype (0.. $#HOOKNAME) {
334	my $name = $HOOKNAME[$htype];
335
336	my $ref = $pkg->can ("on_" . lc $name)
337	or next;
338
339	$TERM->{_hook}[$htype]{$pkg} = $ref;
340	$hook_count[$htype]++
341	or set_should_invoke $htype, 1;
342	}
343	}
344
345	my $script_pkg = "script0000";
346	my %script_pkg;
347		614
348	# load a single script into its own package, once only	615	# load a single script into its own package, once only
349	sub script_package($) {	616	sub extension_package($) {
350	my ($path) = @_;	617	my ($path) = @_;
351		618
352	$script_pkg{$path} ||= do {	619	$extension_pkg{$path} ||= do {
353	my $pkg = "urxvt::" . ($script_pkg++);	620	my $pkg = "urxvt::" . ($extension_pkg++);
354		621
355	verbose 3, "loading script '$path' into package '$pkg'";	622	verbose 3, "loading extension '$path' into package '$pkg'";
356		623
357	open my $fh, "<:raw", $path	624	open my $fh, "<:raw", $path
358	or die "$path: $!";	625	or die "$path: $!";
359		626
		627	my $source =
360	my $source = "package $pkg; use strict; use utf8;\n"	628	"package $pkg; use strict; use utf8;\n"
		629	. "use base urxvt::term::extension::;\n"
361	. "#line 1 \"$path\"\n{\n"	630	. "#line 1 \"$path\"\n{\n"
362	. (do { local $/; <$fh> })	631	. (do { local $/; <$fh> })
363	. "\n};\n1";	632	. "\n};\n1";
364		633
		634	eval $source
365	eval $source or die "$path: $@";	635	or die "$path: $@";
366		636
367	$pkg	637	$pkg
368	}	638	}
369	}	639	}
		640
		641	our $retval; # return value for urxvt
370		642
371	# called by the rxvt core	643	# called by the rxvt core
372	sub invoke {	644	sub invoke {
373	local $TERM = shift;	645	local $TERM = shift;
374	my $htype = shift;	646	my $htype = shift;
375		647
376	if ($htype == 0) { # INIT	648	if ($htype == 0) { # INIT
377	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");	649	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
		650
		651	my %ext_arg;
378		652
379	for my $ext (map { split /:/, $TERM->resource ("perl_ext_$_") } 1, 2) {	653	for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
		654	if ($_ eq "default") {
		655	$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback);
		656	} elsif (/^-(.*)$/) {
		657	delete $ext_arg{$1};
		658	} elsif (/^([^<]+)<(.*)>$/) {
		659	push @{ $ext_arg{$1} }, $2;
		660	} else {
		661	$ext_arg{$_} ||= [];
		662	}
		663	}
		664
		665	while (my ($ext, $argv) = each %ext_arg) {
380	my @files = grep -f $_, map "$_/$ext", @dirs;	666	my @files = grep -f $_, map "$_/$ext", @dirs;
381		667
382	if (@files) {	668	if (@files) {
383	register_package script_package $files[0];	669	$TERM->register_package (extension_package $files[0], $argv);
384	} else {	670	} else {
385	warn "perl extension '$ext' not found in perl library search path\n";	671	warn "perl extension '$ext' not found in perl library search path\n";
386	}	672	}
387	}	673	}
388		674
389	} elsif ($htype == 1) { # DESTROY	675	eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval");
		676	warn $@ if $@;
		677	}
		678
		679	$retval = undef;
		680
390	if (my $hook = $TERM->{_hook}) {	681	if (my $cb = $TERM->{_hook}[$htype]) {
391	for my $htype (0..$#$hook) {	682	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
392	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }	683	if $verbosity >= 10;
393	or set_should_invoke $htype, 0;	684
		685	keys %$cb;
		686
		687	while (my ($pkg, $cb) = each %$cb) {
		688	$retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) }
		689	and last;
		690
		691	if ($@) {
		692	$TERM->ungrab; # better to lose the grab than the session
		693	warn $@;
394	}	694	}
395	}	695	}
		696
		697	verbose 11, "$HOOKNAME[$htype] returning <$retval>"
		698	if $verbosity >= 11;
396	}	699	}
397		700
398	my $cb = $TERM->{_hook}[$htype]	701	if ($htype == 1) { # DESTROY
399	or return;	702	# clear package objects
		703	%$_ = () for values %{ $TERM->{_pkg} };
400		704
401	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"	705	# clear package
402	if $verbosity >= 10;	706	%$TERM = ();
403
404	keys %$cb;
405
406	while (my ($pkg, $cb) = each %$cb) {
407	return 1
408	if $cb->(
409	$TERM->{$pkg} ||= do {
410	my $proxy = bless { }, urxvt::term::proxy::;
411	Scalar::Util::weaken ($proxy->{term} = $TERM);
412	$proxy
413	},
414	@_,
415	);
416	}	707	}
417		708
		709	$retval
		710	}
		711
		712	sub exec_async(@) {
		713	my $pid = fork;
		714
		715	return
		716	if !defined $pid or $pid;
		717
		718	%ENV = %{ $TERM->env };
		719
		720	exec @_;
		721	_exit 255;
		722	}
		723
		724	# urxvt::term::extension
		725
		726	package urxvt::term::extension;
		727
		728	sub enable {
		729	my ($self, %hook) = @_;
		730	my $pkg = $self->{_pkg};
		731
		732	while (my ($name, $cb) = each %hook) {
		733	my $htype = $HOOKTYPE{uc $name};
		734	defined $htype
		735	or Carp::croak "unsupported hook type '$name'";
		736
		737	$self->set_should_invoke ($htype, +1)
		738	unless exists $self->{term}{_hook}[$htype]{$pkg};
		739
		740	$self->{term}{_hook}[$htype]{$pkg} = $cb;
418	0	741	}
419	}	742	}
420		743
421	sub urxvt::term::proxy::AUTOLOAD {	744	sub disable {
422	$urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/	745	my ($self, @hook) = @_;
		746	my $pkg = $self->{_pkg};
		747
		748	for my $name (@hook) {
		749	my $htype = $HOOKTYPE{uc $name};
		750	defined $htype
		751	or Carp::croak "unsupported hook type '$name'";
		752
		753	$self->set_should_invoke ($htype, -1)
		754	if delete $self->{term}{_hook}[$htype]{$pkg};
		755	}
		756	}
		757
		758	our $AUTOLOAD;
		759
		760	sub AUTOLOAD {
		761	$AUTOLOAD =~ /:([^:]+)$/
423	or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";	762	or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
424		763
425	eval qq{	764	eval qq{
426	sub $urxvt::term::proxy::AUTOLOAD {	765	sub $AUTOLOAD {
427	my \$proxy = shift;	766	my \$proxy = shift;
428	\$proxy->{term}->$1 (\@_)	767	\$proxy->{term}->$1 (\@_)
429	}	768	}
430	1	769	1
431	} or die "FATAL: unable to compile method forwarder: $@";	770	} or die "FATAL: unable to compile method forwarder: $@";
432		771
433	goto &$urxvt::term::proxy::AUTOLOAD;	772	goto &$AUTOLOAD;
434	}	773	}
		774
		775	sub DESTROY {
		776	# nop
		777	}
		778
		779	# urxvt::destroy_hook
		780
		781	sub urxvt::destroy_hook::DESTROY {
		782	${$_[0]}->();
		783	}
		784
		785	sub urxvt::destroy_hook(&) {
		786	bless \shift, urxvt::destroy_hook::
		787	}
		788
		789	package urxvt::anyevent;
		790
		791	=head2 The C<urxvt::anyevent> Class
		792
		793	The sole purpose of this class is to deliver an interface to the
		794	C<AnyEvent> module - any module using it will work inside urxvt without
		795	further programming. The only exception is that you cannot wait on
		796	condition variables, but non-blocking condvar use is ok. What this means
		797	is that you cannot use blocking APIs, but the non-blocking variant should
		798	work.
		799
		800	=cut
		801
		802	our $VERSION = 1;
		803
		804	$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
		805	push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
		806
		807	sub timer {
		808	my ($class, %arg) = @_;
		809
		810	my $cb = $arg{cb};
		811
		812	urxvt::timer
		813	->new
		814	->start (urxvt::NOW + $arg{after})
		815	->cb (sub {
		816	$_[0]->stop; # need to cancel manually
		817	$cb->();
		818	})
		819	}
		820
		821	sub io {
		822	my ($class, %arg) = @_;
		823
		824	my $cb = $arg{cb};
		825
		826	bless [$arg{fh}, urxvt::iow
		827	->new
		828	->fd (fileno $arg{fh})
		829	->events (($arg{poll} =~ /r/ ? 1 : 0)
		830	| ($arg{poll} =~ /w/ ? 2 : 0))
		831	->start
		832	->cb (sub {
		833	$cb->(($_[1] & 1 ? 'r' : '')
		834	. ($_[1] & 2 ? 'w' : ''));
		835	})],
		836	urxvt::anyevent::
		837	}
		838
		839	sub DESTROY {
		840	$_[0][1]->stop;
		841	}
		842
		843	sub condvar {
		844	bless \my $flag, urxvt::anyevent::condvar::
		845	}
		846
		847	sub urxvt::anyevent::condvar::broadcast {
		848	${$_[0]}++;
		849	}
		850
		851	sub urxvt::anyevent::condvar::wait {
		852	unless (${$_[0]}) {
		853	Carp::croak "AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API";
		854	}
		855	}
		856
		857	package urxvt::term;
435		858
436	=head2 The C<urxvt::term> Class	859	=head2 The C<urxvt::term> Class
437		860
438	=over 4	861	=over 4
		862
		863	=cut
		864
		865	# find on_xxx subs in the package and register them
		866	# as hooks
		867	sub register_package {
		868	my ($self, $pkg, $argv) = @_;
		869
		870	my $proxy = bless {
		871	_pkg => $pkg,
		872	argv => $argv,
		873	}, $pkg;
		874	Scalar::Util::weaken ($proxy->{term} = $self);
		875
		876	$self->{_pkg}{$pkg} = $proxy;
		877
		878	for my $name (@HOOKNAME) {
		879	if (my $ref = $pkg->can ("on_" . lc $name)) {
		880	$proxy->enable ($name => $ref);
		881	}
		882	}
		883	}
		884
		885	=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
		886
		887	Creates a new terminal, very similar as if you had started it with system
		888	C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
		889	hash which defines the environment of the new terminal.
		890
		891	Croaks (and probably outputs an error message) if the new instance
		892	couldn't be created. Returns C<undef> if the new instance didn't
		893	initialise perl, and the terminal object otherwise. The C<init> and
		894	C<start> hooks will be called during this call.
		895
		896	=cut
		897
		898	sub new {
		899	my ($class, $env, @args) = @_;
		900
		901	_new ([ map "$_=$env->{$_}", keys %$env ], @args);
		902	}
		903
		904	=item $term->destroy
		905
		906	Destroy the terminal object (close the window, free resources
		907	etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
		908	watchers (timers, io watchers) are still active.
		909
		910	=item $isset = $term->option ($optval[, $set])
		911
		912	Returns true if the option specified by C<$optval> is enabled, and
		913	optionally change it. All option values are stored by name in the hash
		914	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
		915
		916	Here is a a likely non-exhaustive list of option names, please see the
		917	source file F</src/optinc.h> to see the actual list:
		918
		919	borderLess console cursorBlink cursorUnderline hold iconic insecure
		920	intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
		921	pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating
		922	scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer
		923	secondaryScreen secondaryScroll skipBuiltinGlyphs transparent
		924	tripleclickwords utmpInhibit visualBell
439		925
440	=item $value = $term->resource ($name[, $newval])	926	=item $value = $term->resource ($name[, $newval])
441		927
442	Returns the current resource value associated with a given name and	928	Returns the current resource value associated with a given name and
443	optionally sets a new value. Setting values is most useful in the C<init>	929	optionally sets a new value. Setting values is most useful in the C<init>
…		…
453		939
454	Please note that resource strings will currently only be freed when the	940	Please note that resource strings will currently only be freed when the
455	terminal is destroyed, so changing options frequently will eat memory.	941	terminal is destroyed, so changing options frequently will eat memory.
456		942
457	Here is a a likely non-exhaustive list of resource names, not all of which	943	Here is a a likely non-exhaustive list of resource names, not all of which
458	are supported in every build, please see the source to see the actual	944	are supported in every build, please see the source file F</src/rsinc.h>
459	list:	945	to see the actual list:
460		946
461	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont	947	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
462	borderLess color cursorBlink cursorUnderline cutchars delete_key	948	borderLess color cursorBlink cursorUnderline cutchars delete_key
463	display_name embed ext_bwidth fade font geometry hold iconName	949	display_name embed ext_bwidth fade font geometry hold iconName
464	imFont imLocale inputMethod insecure int_bwidth intensityStyles	950	imFont imLocale inputMethod insecure int_bwidth intensityStyles
…		…
471	shade term_name title transparent transparent_all tripleclickwords	957	shade term_name title transparent transparent_all tripleclickwords
472	utmpInhibit visualBell	958	utmpInhibit visualBell
473		959
474	=cut	960	=cut
475		961
476	sub urxvt::term::resource($$;$) {	962	sub resource($$;$) {
477	my ($self, $name) = (shift, shift);	963	my ($self, $name) = (shift, shift);
478	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);	964	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
479	goto &urxvt::term::_resource;	965	&urxvt::term::_resource
480	}	966	}
		967
		968	=item $value = $term->x_resource ($pattern)
		969
		970	Returns the X-Resource for the given pattern, excluding the program or
		971	class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
		972	same value as used by this instance of rxvt-unicode. Returns C<undef> if no
		973	resource with that pattern exists.
		974
		975	This method should only be called during the C<on_start> hook, as there is
		976	only one resource database per display, and later invocations might return
		977	the wrong resources.
		978
		979	=item $success = $term->parse_keysym ($keysym_spec, $command_string)
		980
		981	Adds a keymap translation exactly as specified via a resource. See the
		982	C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
		983
		984	=item $rend = $term->rstyle ([$new_rstyle])
		985
		986	Return and optionally change the current rendition. Text that is output by
		987	the terminal application will use this style.
		988
		989	=item ($row, $col) = $term->screen_cur ([$row, $col])
		990
		991	Return the current coordinates of the text cursor position and optionally
		992	set it (which is usually bad as applications don't expect that).
481		993
482	=item ($row, $col) = $term->selection_mark ([$row, $col])	994	=item ($row, $col) = $term->selection_mark ([$row, $col])
483		995
484	=item ($row, $col) = $term->selection_beg ([$row, $col])	996	=item ($row, $col) = $term->selection_beg ([$row, $col])
485		997
486	=item ($row, $col) = $term->selection_end ([$row, $col])	998	=item ($row, $col) = $term->selection_end ([$row, $col])
487		999
488	Return the current values of the selection mark, begin or end positions,	1000	Return the current values of the selection mark, begin or end positions,
489	and optionally set them to new values.	1001	and optionally set them to new values.
490		1002
		1003	=item $term->selection_make ($eventtime[, $rectangular])
		1004
		1005	Tries to make a selection as set by C<selection_beg> and
		1006	C<selection_end>. If C<$rectangular> is true (default: false), a
		1007	rectangular selection will be made. This is the prefered function to make
		1008	a selection.
		1009
491	=item $success = $term->selection_grab ($eventtime)	1010	=item $success = $term->selection_grab ($eventtime)
492		1011
493	Try to request the primary selection from the server (for example, as set	1012	Try to request the primary selection text from the server (for example, as
494	by the next method).	1013	set by the next method). No visual feedback will be given. This function
		1014	is mostly useful from within C<on_sel_grab> hooks.
495		1015
496	=item $oldtext = $term->selection ([$newtext])	1016	=item $oldtext = $term->selection ([$newtext])
497		1017
498	Return the current selection text and optionally replace it by C<$newtext>.	1018	Return the current selection text and optionally replace it by C<$newtext>.
499		1019
500	#=item $term->overlay ($x, $y, $text)	1020	=item $term->overlay_simple ($x, $y, $text)
501	#	1021
502	#Create a simple multi-line overlay box. See the next method for details.	1022	Create a simple multi-line overlay box. See the next method for details.
503	#	1023
504	#=cut	1024	=cut
505		1025
506	sub urxvt::term::scr_overlay {	1026	sub overlay_simple {
507	die;
508	my ($self, $x, $y, $text) = @_;	1027	my ($self, $x, $y, $text) = @_;
509		1028
510	my @lines = split /\n/, $text;	1029	my @lines = split /\n/, $text;
511		1030
512	my $w = 0;	1031	my $w = List::Util::max map $self->strwidth ($_), @lines;
513	for (map $self->strwidth ($_), @lines) {
514	$w = $_ if $w < $_;
515	}
516		1032
517	$self->scr_overlay_new ($x, $y, $w, scalar @lines);	1033	my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
518	$self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;	1034	$overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
		1035
		1036	$overlay
519	}	1037	}
520		1038
521	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])	1039	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
522		1040
523	Create a new (empty) overlay at the given position with the given	1041	Create a new (empty) overlay at the given position with the given
…		…
551		1069
552	If hidden, display the overlay again.	1070	If hidden, display the overlay again.
553		1071
554	=back	1072	=back
555		1073
		1074	=item $popup = $term->popup ($event)
		1075
		1076	Creates a new C<urxvt::popup> object that implements a popup menu. The
		1077	C<$event> I<must> be the event causing the menu to pop up (a button event,
		1078	currently).
		1079
		1080	=cut
		1081
		1082	sub popup {
		1083	my ($self, $event) = @_;
		1084
		1085	$self->grab ($event->{time}, 1)
		1086	or return;
		1087
		1088	my $popup = bless {
		1089	term => $self,
		1090	event => $event,
		1091	}, urxvt::popup::;
		1092
		1093	Scalar::Util::weaken $popup->{term};
		1094
		1095	$self->{_destroy}{$popup} = urxvt::destroy_hook { $popup->{popup}->destroy };
		1096	Scalar::Util::weaken $self->{_destroy}{$popup};
		1097
		1098	$popup
		1099	}
		1100
556	=item $cellwidth = $term->strwidth $string	1101	=item $cellwidth = $term->strwidth ($string)
557		1102
558	Returns the number of screen-cells this string would need. Correctly	1103	Returns the number of screen-cells this string would need. Correctly
559	accounts for wide and combining characters.	1104	accounts for wide and combining characters.
560		1105
561	=item $octets = $term->locale_encode $string	1106	=item $octets = $term->locale_encode ($string)
562		1107
563	Convert the given text string into the corresponding locale encoding.	1108	Convert the given text string into the corresponding locale encoding.
564		1109
565	=item $string = $term->locale_decode $octets	1110	=item $string = $term->locale_decode ($octets)
566		1111
567	Convert the given locale-encoded octets into a perl string.	1112	Convert the given locale-encoded octets into a perl string.
		1113
		1114	=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
		1115
		1116	XORs the rendition values in the given span with the provided value
		1117	(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
		1118	refresh hooks to provide effects similar to the selection.
		1119
		1120	=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
		1121
		1122	Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
		1123	whitespace will additionally be xored with the C<$rstyle2>, which defaults
		1124	to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
		1125	it instead. Both styles I<MUST NOT> contain font styles.
		1126
		1127	=item $term->scr_bell
		1128
		1129	Ring the bell!
		1130
		1131	=item $term->scr_add_lines ($string)
		1132
		1133	Write the given text string to the screen, as if output by the application
		1134	running inside the terminal. It may not contain command sequences (escape
		1135	codes), but is free to use line feeds, carriage returns and tabs. The
		1136	string is a normal text string, not in locale-dependent encoding.
		1137
		1138	Normally its not a good idea to use this function, as programs might be
		1139	confused by changes in cursor position or scrolling. Its useful inside a
		1140	C<on_add_lines> hook, though.
		1141
		1142	=item $term->cmd_parse ($octets)
		1143
		1144	Similar to C<scr_add_lines>, but the argument must be in the
		1145	locale-specific encoding of the terminal and can contain command sequences
		1146	(escape codes) that will be interpreted.
568		1147
569	=item $term->tt_write ($octets)	1148	=item $term->tt_write ($octets)
570		1149
571	Write the octets given in C<$data> to the tty (i.e. as program input). To	1150	Write the octets given in C<$data> to the tty (i.e. as program input). To
572	pass characters instead of octets, you should convert your strings first	1151	pass characters instead of octets, you should convert your strings first
573	to the locale-specific encoding using C<< $term->locale_encode >>.	1152	to the locale-specific encoding using C<< $term->locale_encode >>.
574		1153
		1154	=item $old_events = $term->pty_ev_events ([$new_events])
		1155
		1156	Replaces the event mask of the pty watcher by the given event mask. Can
		1157	be used to suppress input and output handling to the pty/tty. See the
		1158	description of C<< urxvt::timer->events >>. Make sure to always restore
		1159	the previous value.
		1160
		1161	=item $windowid = $term->parent
		1162
		1163	Return the window id of the toplevel window.
		1164
		1165	=item $windowid = $term->vt
		1166
		1167	Return the window id of the terminal window.
		1168
		1169	=item $term->vt_emask_add ($x_event_mask)
		1170
		1171	Adds the specified events to the vt event mask. Useful e.g. when you want
		1172	to receive pointer events all the times:
		1173
		1174	$term->vt_emask_add (urxvt::PointerMotionMask);
		1175
		1176	=item $window_width = $term->width
		1177
		1178	=item $window_height = $term->height
		1179
		1180	=item $font_width = $term->fwidth
		1181
		1182	=item $font_height = $term->fheight
		1183
		1184	=item $font_ascent = $term->fbase
		1185
575	=item $nrow = $term->nrow	1186	=item $terminal_rows = $term->nrow
576		1187
577	=item $ncol = $term->ncol	1188	=item $terminal_columns = $term->ncol
578		1189
579	Return the number of rows/columns of the terminal window (i.e. as	1190	=item $has_focus = $term->focus
580	specified by C<-geometry>, excluding any scrollback).
581		1191
		1192	=item $is_mapped = $term->mapped
		1193
		1194	=item $max_scrollback = $term->saveLines
		1195
		1196	=item $nrow_plus_saveLines = $term->total_rows
		1197
		1198	=item $topmost_scrollback_row = $term->top_row
		1199
		1200	Return various integers describing terminal characteristics.
		1201
		1202	=item $x_display = $term->display_id
		1203
		1204	Return the DISPLAY used by rxvt-unicode.
		1205
		1206	=item $lc_ctype = $term->locale
		1207
		1208	Returns the LC_CTYPE category string used by this rxvt-unicode.
		1209
582	=item $nsaved = $term->nsaved	1210	=item $env = $term->env
583		1211
584	Returns the number of lines in the scrollback buffer.	1212	Returns a copy of the environment in effect for the terminal as a hashref
		1213	similar to C<\%ENV>.
		1214
		1215	=cut
		1216
		1217	sub env {
		1218	if (my $env = $_[0]->_env) {
		1219	+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), @$env }
		1220	} else {
		1221	+{ %ENV }
		1222	}
		1223	}
		1224
		1225	=item $modifiermask = $term->ModLevel3Mask
		1226
		1227	=item $modifiermask = $term->ModMetaMask
		1228
		1229	=item $modifiermask = $term->ModNumLockMask
		1230
		1231	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
		1232	AltGr), the meta key (often Alt) and the num lock key, if applicable.
585		1233
586	=item $view_start = $term->view_start ([$newvalue])	1234	=item $view_start = $term->view_start ([$newvalue])
587		1235
588	Returns the negative row number of the topmost line. Minimum value is	1236	Returns the row number of the topmost displayed line. Maximum value is
589	C<0>, which displays the normal terminal contents. Larger values scroll	1237	C<0>, which displays the normal terminal contents. Lower values scroll
590	this many lines into the scrollback buffer.	1238	this many lines into the scrollback buffer.
591		1239
592	=item $term->want_refresh	1240	=item $term->want_refresh
593		1241
594	Requests a screen refresh. At the next opportunity, rxvt-unicode will	1242	Requests a screen refresh. At the next opportunity, rxvt-unicode will
…		…
652	about the logical line that row C<$row_number> is part of. It supports the	1300	about the logical line that row C<$row_number> is part of. It supports the
653	following methods:	1301	following methods:
654		1302
655	=over 4	1303	=over 4
656		1304
657	=item $text = $line->t	1305	=item $text = $line->t ([$new_text])
658		1306
659	Returns the full text of the line, similar to C<ROW_t>	1307	Returns or replaces the full text of the line, similar to C<ROW_t>
660		1308
661	=item $rend = $line->r	1309	=item $rend = $line->r ([$new_rend])
662		1310
663	Returns the full rendition array of the line, similar to C<ROW_r>	1311	Returns or replaces the full rendition array of the line, similar to C<ROW_r>
664		1312
665	=item $length = $line->l	1313	=item $length = $line->l
666		1314
667	Returns the length of the line in cells, similar to C<ROW_l>.	1315	Returns the length of the line in cells, similar to C<ROW_l>.
668		1316
…		…
673	Return the row number of the first/last row of the line, respectively.	1321	Return the row number of the first/last row of the line, respectively.
674		1322
675	=item $offset = $line->offset_of ($row, $col)	1323	=item $offset = $line->offset_of ($row, $col)
676		1324
677	Returns the character offset of the given row|col pair within the logical	1325	Returns the character offset of the given row|col pair within the logical
678	line.	1326	line. Works for rows outside the line, too, and returns corresponding
		1327	offsets outside the string.
679		1328
680	=item ($row, $col) = $line->coord_of ($offset)	1329	=item ($row, $col) = $line->coord_of ($offset)
681		1330
682	Translates a string offset into terminal coordinates again.	1331	Translates a string offset into terminal coordinates again.
683		1332
684	=back	1333	=back
685		1334
686	=cut	1335	=cut
687		1336
688	sub urxvt::term::line {	1337	sub line {
689	my ($self, $row) = @_;	1338	my ($self, $row) = @_;
690		1339
691	my $maxrow = $self->nrow - 1;	1340	my $maxrow = $self->nrow - 1;
692		1341
693	my ($beg, $end) = ($row, $row);	1342	my ($beg, $end) = ($row, $row);
…		…
697		1346
698	bless {	1347	bless {
699	term => $self,	1348	term => $self,
700	beg => $beg,	1349	beg => $beg,
701	end => $end,	1350	end => $end,
		1351	ncol => $self->ncol,
702	len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),	1352	len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),
703	}, urxvt::line::	1353	}, urxvt::line::
704	}	1354	}
705		1355
706	sub urxvt::line::t {	1356	sub urxvt::line::t {
707	my ($self) = @_;	1357	my ($self) = @_;
708		1358
		1359	if (@_ > 1)
		1360	{
		1361	$self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
		1362	for $self->{beg} .. $self->{end};
		1363	}
		1364
		1365	defined wantarray &&
709	substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),	1366	substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),
710	0, $self->{len}	1367	0, $self->{len}
711	}	1368	}
712		1369
713	sub urxvt::line::r {	1370	sub urxvt::line::r {
714	my ($self) = @_;	1371	my ($self) = @_;
715		1372
		1373	if (@_ > 1)
		1374	{
		1375	$self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
		1376	for $self->{beg} .. $self->{end};
		1377	}
		1378
		1379	if (defined wantarray) {
716	my $rend = [	1380	my $rend = [
717	map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}	1381	map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}
718	];	1382	];
719	$#$rend = $self->{len} - 1;	1383	$#$rend = $self->{len} - 1;
720	$rend	1384	return $rend;
		1385	}
		1386
		1387	()
721	}	1388	}
722		1389
723	sub urxvt::line::beg { $_[0]{beg} }	1390	sub urxvt::line::beg { $_[0]{beg} }
724	sub urxvt::line::end { $_[0]{end} }	1391	sub urxvt::line::end { $_[0]{end} }
725	sub urxvt::line::l { $_[0]{len} }	1392	sub urxvt::line::l { $_[0]{len} }
726		1393
727	sub urxvt::line::offset_of {	1394	sub urxvt::line::offset_of {
728	my ($self, $row, $col) = @_;	1395	my ($self, $row, $col) = @_;
729		1396
730	($row - $self->{beg}) * $self->{term}->ncol + $col	1397	($row - $self->{beg}) * $self->{ncol} + $col
731	}	1398	}
732		1399
733	sub urxvt::line::coord_of {	1400	sub urxvt::line::coord_of {
734	my ($self, $offset) = @_;	1401	my ($self, $offset) = @_;
735		1402
736	use integer;	1403	use integer;
737		1404
738	(	1405	(
739	$offset / $self->{term}->ncol + $self->{beg},	1406	$offset / $self->{ncol} + $self->{beg},
740	$offset % $self->{term}->ncol	1407	$offset % $self->{ncol}
741	)	1408	)
742	}	1409	}
743		1410
744	=item ($row, $col) = $line->coord_of ($offset)
745	=item $text = $term->special_encode $string	1411	=item $text = $term->special_encode $string
746		1412
747	Converts a perl string into the special encoding used by rxvt-unicode,	1413	Converts a perl string into the special encoding used by rxvt-unicode,
748	where one character corresponds to one screen cell. See	1414	where one character corresponds to one screen cell. See
749	C<< $term->ROW_t >> for details.	1415	C<< $term->ROW_t >> for details.
750		1416
751	=item $string = $term->special_decode $text	1417	=item $string = $term->special_decode $text
752		1418
753	Converts rxvt-unicodes text reprsentation into a perl string. See	1419	Converts rxvt-unicodes text reprsentation into a perl string. See
754	C<< $term->ROW_t >> for details.	1420	C<< $term->ROW_t >> for details.
		1421
		1422	=item $success = $term->grab_button ($button, $modifiermask)
		1423
		1424	Registers a synchronous button grab. See the XGrabButton manpage.
		1425
		1426	=item $success = $term->grab ($eventtime[, $sync])
		1427
		1428	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
		1429	synchronous (C<$sync> is true). Also remembers the grab timestampe.
		1430
		1431	=item $term->allow_events_async
		1432
		1433	Calls XAllowEvents with AsyncBoth for the most recent grab.
		1434
		1435	=item $term->allow_events_sync
		1436
		1437	Calls XAllowEvents with SyncBoth for the most recent grab.
		1438
		1439	=item $term->allow_events_replay
		1440
		1441	Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
		1442	recent grab.
		1443
		1444	=item $term->ungrab
		1445
		1446	Calls XUngrab for the most recent grab. Is called automatically on
		1447	evaluation errors, as it is better to lose the grab in the error case as
		1448	the session.
		1449
		1450	=back
		1451
		1452	=cut
		1453
		1454	package urxvt::popup;
		1455
		1456	=head2 The C<urxvt::popup> Class
		1457
		1458	=over 4
		1459
		1460	=cut
		1461
		1462	sub add_item {
		1463	my ($self, $item) = @_;
		1464
		1465	$item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal};
		1466	$item->{rend}{hover} = "\x1b[0;30;46m" unless exists $item->{rend}{hover};
		1467	$item->{rend}{active} = "\x1b[m" unless exists $item->{rend}{active};
		1468
		1469	$item->{render} ||= sub { $_[0]{text} };
		1470
		1471	push @{ $self->{item} }, $item;
		1472	}
		1473
		1474	=item $popup->add_title ($title)
		1475
		1476	Adds a non-clickable title to the popup.
		1477
		1478	=cut
		1479
		1480	sub add_title {
		1481	my ($self, $title) = @_;
		1482
		1483	$self->add_item ({
		1484	rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
		1485	text => $title,
		1486	activate => sub { },
		1487	});
		1488	}
		1489
		1490	=item $popup->add_separator ([$sepchr])
		1491
		1492	Creates a separator, optionally using the character given as C<$sepchr>.
		1493
		1494	=cut
		1495
		1496	sub add_separator {
		1497	my ($self, $sep) = @_;
		1498
		1499	$sep ||= "=";
		1500
		1501	$self->add_item ({
		1502	rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
		1503	text => "",
		1504	render => sub { $sep x $self->{term}->ncol },
		1505	activate => sub { },
		1506	});
		1507	}
		1508
		1509	=item $popup->add_button ($text, $cb)
		1510
		1511	Adds a clickable button to the popup. C<$cb> is called whenever it is
		1512	selected.
		1513
		1514	=cut
		1515
		1516	sub add_button {
		1517	my ($self, $text, $cb) = @_;
		1518
		1519	$self->add_item ({ type => "button", text => $text, activate => $cb});
		1520	}
		1521
		1522	=item $popup->add_toggle ($text, $cb, $initial_value)
		1523
		1524	Adds a toggle/checkbox item to the popup. Teh callback gets called
		1525	whenever it gets toggled, with a boolean indicating its value as its first
		1526	argument.
		1527
		1528	=cut
		1529
		1530	sub add_toggle {
		1531	my ($self, $text, $cb, $value) = @_;
		1532
		1533	my $item; $item = {
		1534	type => "button",
		1535	text => " $text",
		1536	value => $value,
		1537	render => sub { ($_[0]{value} ? "* " : " ") . $text },
		1538	activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
		1539	};
		1540
		1541	$self->add_item ($item);
		1542	}
		1543
		1544	=item $popup->show
		1545
		1546	Displays the popup (which is initially hidden).
		1547
		1548	=cut
		1549
		1550	sub show {
		1551	my ($self) = @_;
		1552
		1553	local $urxvt::popup::self = $self;
		1554
		1555	my $env = $self->{term}->env;
		1556	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
		1557	delete $env->{LC_ALL};
		1558	$env->{LC_CTYPE} = $self->{term}->locale;
		1559
		1560	urxvt::term->new ($env, $self->{term}->resource ("name"),
		1561	"--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0,
		1562	"--transient-for" => $self->{term}->parent,
		1563	"-display" => $self->{term}->display_id,
		1564	"-pe" => "urxvt-popup")
		1565	or die "unable to create popup window\n";
		1566	}
		1567
		1568	sub DESTROY {
		1569	my ($self) = @_;
		1570
		1571	delete $self->{term}{_destroy}{$self};
		1572	$self->{term}->ungrab;
		1573	}
755		1574
756	=back	1575	=back
757		1576
758	=head2 The C<urxvt::timer> Class	1577	=head2 The C<urxvt::timer> Class
759		1578
…		…
814		1633
815	$term->{socket} = ...	1634	$term->{socket} = ...
816	$term->{iow} = urxvt::iow	1635	$term->{iow} = urxvt::iow
817	->new	1636	->new
818	->fd (fileno $term->{socket})	1637	->fd (fileno $term->{socket})
819	->events (1) # wait for read data	1638	->events (urxvt::EVENT_READ)
820	->start	1639	->start
821	->cb (sub {	1640	->cb (sub {
822	my ($iow, $revents) = @_;	1641	my ($iow, $revents) = @_;
823	# $revents must be 1 here, no need to check	1642	# $revents must be 1 here, no need to check
824	sysread $term->{socket}, my $buf, 8192	1643	sysread $term->{socket}, my $buf, 8192
…		…
841		1660
842	Set the filedescriptor (not handle) to watch.	1661	Set the filedescriptor (not handle) to watch.
843		1662
844	=item $iow = $iow->events ($eventmask)	1663	=item $iow = $iow->events ($eventmask)
845		1664
846	Set the event mask to watch. Bit #0 (value C<1>) enables watching for read	1665	Set the event mask to watch. The only allowed values are
847	data, Bit #1 (value C<2>) enables watching for write data.	1666	C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed
		1667	together, or C<urxvt::EVENT_NONE>.
848		1668
849	=item $iow = $iow->start	1669	=item $iow = $iow->start
850		1670
851	Start watching for requested events on the given handle.	1671	Start watching for requested events on the given handle.
852		1672
…		…
863	This variable controls the verbosity level of the perl extension. Higher	1683	This variable controls the verbosity level of the perl extension. Higher
864	numbers indicate more verbose output.	1684	numbers indicate more verbose output.
865		1685
866	=over 4	1686	=over 4
867		1687
868	=item =0 - only fatal messages	1688	=item == 0 - fatal messages
869		1689
870	=item =3 - script loading and management	1690	=item >= 3 - script loading and management
871		1691
872	=item =10 - all events received	1692	=item >=10 - all called hooks
		1693
		1694	=item >=11 - hook reutrn values
873		1695
874	=back	1696	=back
875		1697
876	=head1 AUTHOR	1698	=head1 AUTHOR
877		1699

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