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Revision 1.25 by root, Tue Jan 3 21:08:39 2006 UTC vs.
Revision 1.105 by root, Wed Jan 18 19:43:51 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 etxension tries to be more intelligent when the user	44	(More) intelligent selection. This extension tries to be more intelligent
45	extends selections (double-click).	45	when the user extends selections (double-click and further clicks). Right
		46	now, it tries to select words, urls and complete shell-quoted
		47	arguments, which is very convenient, too, if your F<ls> supports
		48	C<--quoting-style=shell>.
46		49
47	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:
48		72
49	=over 4	73	=over 4
50		74
51	=item rot13	75	=item rot13
52		76
53	Rot-13 the selection when activated. Used via keyboard trigger:	77	Rot-13 the selection when activated. Used via keyboard trigger:
54		78
55	URxvt.keysym.C-M-r: perl:selection:rot13	79	URxvt.keysym.C-M-r: perl:selection:rot13
56		80
57	=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	Other extensions can extend this popup menu by pushing a code reference onto
		95	C<@urxvt::ext::selection_popup::hook>, that is called whenever the popup is displayed.
		96
		97	It's sole argument is the popup menu, which can be modified. The selection
		98	is in C<$_>, which can be used to decide wether to add something or not.
		99	It should either return nothing or a string and a code reference. The
		100	string will be used as button text and the code reference will be called
		101	when the button gets activated and should transform C<$_>.
		102
		103	The following will add an entry C<a to b> that transforms all C<a>s in
		104	the selection to C<b>s, but only if the selection currently contains any
		105	C<a>s:
		106
		107	push urxvt::ext::selection_popup::hook, sub {
		108	/a/ ? ("a to be" => sub { s/a/b/g }
		109	: ()
		110	};
		111
		112	=item searchable-scrollback<hotkey> (enabled by default)
		113
		114	Adds regex search functionality to the scrollback buffer, triggered
		115	by a hotkey (default: C<M-s>). While in search mode, normal terminal
		116	input/output is suspended and a regex is displayed at the bottom of the
		117	screen.
		118
		119	Inputting characters appends them to the regex and continues incremental
		120	search. C<BackSpace> removes a character from the regex, C<Up> and C<Down>
		121	search upwards/downwards in the scrollback buffer, C<End> jumps to the
		122	bottom. C<Escape> leaves search mode and returns to the point where search
		123	was started, while C<Enter> or C<Return> stay at the current position and
		124	additionally stores the first match in the current line into the primary
		125	selection.
		126
		127	=item selection-autotransform
		128
		129	This selection allows you to do automatic transforms on a selection
		130	whenever a selection is made.
		131
		132	It works by specifying perl snippets (most useful is a single C<s///>
		133	operator) that modify C<$_> as resources:
		134
		135	URxvt.selection-autotransform.0: transform
		136	URxvt.selection-autotransform.1: transform
		137	...
		138
		139	For example, the following will transform selections of the form
		140	C<filename:number>, often seen in compiler messages, into C<vi +$filename
		141	$word>:
		142
		143	URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
		144
		145	And this example matches the same,but replaces it with vi-commands you can
		146	paste directly into your (vi :) editor:
		147
		148	URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/\\x1b:e \\Q$1\\E\\x0d:$2\\x0d/
		149
		150	Of course, this can be modified to suit your needs and your editor :)
		151
		152	To expand the example above to typical perl error messages ("XXX at
		153	FILENAME line YYY."), you need a slightly more elaborate solution:
		154
		155	URxvt.selection.pattern-0: ( at .*? line \\d+\\.)
		156	URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)\\.$/\x1b:e \\Q$1\E\\x0d:$2\\x0d/
		157
		158	The first line tells the selection code to treat the unchanging part of
		159	every error message as a selection pattern, and the second line transforms
		160	the message into vi commands to load the file.
		161
		162	=item mark-urls
		163
		164	Uses per-line display filtering (C<on_line_update>) to underline urls and
		165	make them clickable. When middle-clicked, the program specified in the
		166	resource C<urlLauncher> (default C<x-www-browser>) will be started with
		167	the URL as first argument.
		168
		169	=item automove-background
		170
		171	This is basically a one-line extension that dynamically changes the background pixmap offset
		172	to the window position, in effect creating the same effect as pseudo transparency with
		173	a custom pixmap. No scaling is supported in this mode. Exmaple:
		174
		175	@@RXVT_NAME@@ -pixmap background.xpm -pe automove-background
		176
		177	=item block-graphics-to-ascii
		178
		179	A not very useful example of filtering all text output to the terminal,
		180	by replacing all line-drawing characters (U+2500 .. U+259F) by a
		181	similar-looking ascii character.
58		182
59	=item digital-clock	183	=item digital-clock
60		184
61	Displays a digital clock using the built-in overlay.	185	Displays a digital clock using the built-in overlay.
62		186
…		…
64		188
65	Displays a very simple digital clock in the upper right corner of the	189	Displays a very simple digital clock in the upper right corner of the
66	window. Illustrates overwriting the refresh callbacks to create your own	190	window. Illustrates overwriting the refresh callbacks to create your own
67	overlays or changes.	191	overlays or changes.
68		192
		193	=item selection-pastebin
		194
		195	This is a little rarely useful extension that Uploads the selection as
		196	textfile to a remote site (or does other things). (The implementation is
		197	not currently secure for use in a multiuser environment as it writes to
		198	F</tmp> directly.).
		199
		200	It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
		201	i.e.
		202
		203	URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
		204
		205	Pressing this combination runs a command with C<%> replaced by the name of
		206	the textfile. This command can be set via a resource:
		207
		208	URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
		209
		210	And the default is likely not useful to anybody but the few people around
		211	here :)
		212
		213	The name of the textfile is the hex encoded md5 sum of the selection, so
		214	the same content should lead to the same filename.
		215
		216	After a successful upload the selection will be replaced by the text given
		217	in the C<selection-pastebin-url> resource (again, the % is the placeholder
		218	for the filename):
		219
		220	URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
		221
69	=back	222	=back
		223
		224	=head1 API DOCUMENTATION
70		225
71	=head2 General API Considerations	226	=head2 General API Considerations
72		227
73	All objects (such as terminals, time watchers etc.) are typical	228	All objects (such as terminals, time watchers etc.) are typical
74	reference-to-hash objects. The hash can be used to store anything you	229	reference-to-hash objects. The hash can be used to store anything you
…		…
79	When objects are destroyed on the C++ side, the perl object hashes are	234	When objects are destroyed on the C++ side, the perl object hashes are
80	emptied, so its best to store related objects such as time watchers and	235	emptied, so its best to store related objects such as time watchers and
81	the like inside the terminal object so they get destroyed as soon as the	236	the like inside the terminal object so they get destroyed as soon as the
82	terminal is destroyed.	237	terminal is destroyed.
83		238
		239	Argument names also often indicate the type of a parameter. Here are some
		240	hints on what they mean:
		241
		242	=over 4
		243
		244	=item $text
		245
		246	Rxvt-unicodes special way of encoding text, where one "unicode" character
		247	always represents one screen cell. See L<ROW_t> for a discussion of this format.
		248
		249	=item $string
		250
		251	A perl text string, with an emphasis on I<text>. It can store all unicode
		252	characters and is to be distinguished with text encoded in a specific
		253	encoding (often locale-specific) and binary data.
		254
		255	=item $octets
		256
		257	Either binary data or - more common - a text string encoded in a
		258	locale-specific way.
		259
		260	=back
		261
		262	=head2 Extension Objects
		263
		264	Very perl extension is a perl class. A separate perl object is created
		265	for each terminal and each extension and passed as the first parameter to
		266	hooks. So extensions can use their C<$self> object without having to think
		267	about other extensions, with the exception of methods and members that
		268	begin with an underscore character C<_>: these are reserved for internal
		269	use.
		270
		271	Although it isn't a C<urxvt::term> object, you can call all methods of the
		272	C<urxvt::term> class on this object.
		273
		274	It has the following methods and data members:
		275
		276	=over 4
		277
		278	=item $urxvt_term = $self->{term}
		279
		280	Returns the C<urxvt::term> object associated with this instance of the
		281	extension. This member I<must not> be changed in any way.
		282
		283	=item $self->enable ($hook_name => $cb, [$hook_name => $cb..])
		284
		285	Dynamically enable the given hooks (named without the C<on_> prefix) for
		286	this extension, replacing any previous hook. This is useful when you want
		287	to overwrite time-critical hooks only temporarily.
		288
		289	=item $self->disable ($hook_name[, $hook_name..])
		290
		291	Dynamically disable the given hooks.
		292
		293	=back
		294
84	=head2 Hooks	295	=head2 Hooks
85		296
86	The following subroutines can be declared in loaded scripts, and will be	297	The following subroutines can be declared in extension files, and will be
87	called whenever the relevant event happens.	298	called whenever the relevant event happens.
88		299
89	The first argument passed to them is an object private to each terminal	300	The first argument passed to them is an extension oject as described in
90	and extension package. You can call all C<urxvt::term> methods on it, but	301	the in the C<Extension Objects> section.
91	its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
92	object that is shared between all packages is stored in the C<term>
93	member.
94		302
95	All of them must return a boolean value. If it is true, then the event	303	B<All> of these hooks must return a boolean value. If it is true, then the
96	counts as being I<consumed>, and the invocation of other hooks is skipped,	304	event counts as being I<consumed>, and the invocation of other hooks is
97	and the relevant action might not be carried out by the C++ code.	305	skipped, and the relevant action might not be carried out by the C++ code.
98		306
99	When in doubt, return a false value (preferably C<()>).	307	I<< When in doubt, return a false value (preferably C<()>). >>
100		308
101	=over 4	309	=over 4
102		310
103	=item on_init $term	311	=item on_init $term
104		312
105	Called after a new terminal object has been initialized, but before	313	Called after a new terminal object has been initialized, but before
106	windows are created or the command gets run.	314	windows are created or the command gets run. Most methods are unsafe to
		315	call or deliver senseless data, as terminal size and other characteristics
		316	have not yet been determined. You can safely query and change resources,
		317	though.
107		318
108	=item on_reset $term	319	=item on_reset $term
109		320
110	Called after the screen is "reset" for any reason, such as resizing or	321	Called after the screen is "reset" for any reason, such as resizing or
111	control sequences. Here is where you can react on changes to size-related	322	control sequences. Here is where you can react on changes to size-related
…		…
136	=item on_sel_extend $term	347	=item on_sel_extend $term
137		348
138	Called whenever the user tries to extend the selection (e.g. with a double	349	Called whenever the user tries to extend the selection (e.g. with a double
139	click) and is either supposed to return false (normal operation), or	350	click) and is either supposed to return false (normal operation), or
140	should extend the selection itelf and return true to suppress the built-in	351	should extend the selection itelf and return true to suppress the built-in
141	processing.	352	processing. This can happen multiple times, as long as the callback
		353	returns true, it will be called on every further click by the user and is
		354	supposed to enlarge the selection more and more, if possible.
142		355
143	See the F<selection> example extension.	356	See the F<selection> example extension.
144
145	=item on_focus_in $term
146
147	Called whenever the window gets the keyboard focus, before urxvt does
148	focus in processing.
149
150	=item on_focus_out $term
151
152	Called wheneever the window loses keyboard focus, before urxvt does focus
153	out processing.
154		357
155	=item on_view_change $term, $offset	358	=item on_view_change $term, $offset
156		359
157	Called whenever the view offset changes, i..e the user or program	360	Called whenever the view offset changes, i..e the user or program
158	scrolls. Offset C<0> means display the normal terminal, positive values	361	scrolls. Offset C<0> means display the normal terminal, positive values
…		…
166		369
167	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,	370	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
168	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total	371	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
169	number of lines that will be in the scrollback buffer.	372	number of lines that will be in the scrollback buffer.
170		373
171	=item on_tty_activity $term *NYI*	374	=item on_osc_seq $term, $string
172		375
173	Called whenever the program(s) running in the urxvt window send output.	376	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
		377	operating system command) is processed. Cursor position and other state
		378	information is up-to-date when this happens. For interoperability, the
		379	string should start with the extension name and a colon, to distinguish
		380	it from commands for other extensions, and this might be enforced in the
		381	future.
		382
		383	Be careful not ever to trust (in a security sense) the data you receive,
		384	as its source can not easily be controleld (e-mail content, messages from
		385	other users on the same system etc.).
		386
		387	=item on_add_lines $term, $string
		388
		389	Called whenever text is about to be output, with the text as argument. You
		390	can filter/change and output the text yourself by returning a true value
		391	and calling C<< $term->scr_add_lines >> yourself. Please note that this
		392	might be very slow, however, as your hook is called for B<all> text being
		393	output.
		394
		395	=item on_tt_write $term, $octets
		396
		397	Called whenever some data is written to the tty/pty and can be used to
		398	suppress or filter tty input.
		399
		400	=item on_line_update $term, $row
		401
		402	Called whenever a line was updated or changed. Can be used to filter
		403	screen output (e.g. underline urls or other useless stuff). Only lines
		404	that are being shown will be filtered, and, due to performance reasons,
		405	not always immediately.
		406
		407	The row number is always the topmost row of the line if the line spans
		408	multiple rows.
		409
		410	Please note that, if you change the line, then the hook might get called
		411	later with the already-modified line (e.g. if unrelated parts change), so
		412	you cannot just toggle rendition bits, but only set them.
174		413
175	=item on_refresh_begin $term	414	=item on_refresh_begin $term
176		415
177	Called just before the screen gets redrawn. Can be used for overlay	416	Called just before the screen gets redrawn. Can be used for overlay
178	or similar effects by modify terminal contents in refresh_begin, and	417	or similar effects by modify terminal contents in refresh_begin, and
…		…
187		426
188	Called whenever the user presses a key combination that has a	427	Called whenever the user presses a key combination that has a
189	C<perl:string> action bound to it (see description of the B<keysym>	428	C<perl:string> action bound to it (see description of the B<keysym>
190	resource in the @@RXVT_NAME@@(1) manpage).	429	resource in the @@RXVT_NAME@@(1) manpage).
191		430
		431	=item on_x_event $term, $event
		432
		433	Called on every X event received on the vt window (and possibly other
		434	windows). Should only be used as a last resort. Most event structure
		435	members are not passed.
		436
		437	=item on_focus_in $term
		438
		439	Called whenever the window gets the keyboard focus, before rxvt-unicode
		440	does focus in processing.
		441
		442	=item on_focus_out $term
		443
		444	Called wheneever the window loses keyboard focus, before rxvt-unicode does
		445	focus out processing.
		446
		447	=item on_configure_notify $term, $event
		448
		449	=item on_key_press $term, $event, $keysym, $octets
		450
		451	=item on_key_release $term, $event, $keysym
		452
		453	=item on_button_press $term, $event
		454
		455	=item on_button_release $term, $event
		456
		457	=item on_motion_notify $term, $event
		458
		459	=item on_map_notify $term, $event
		460
		461	=item on_unmap_notify $term, $event
		462
		463	Called whenever the corresponding X event is received for the terminal If
		464	the hook returns true, then the even will be ignored by rxvt-unicode.
		465
		466	The event is a hash with most values as named by Xlib (see the XEvent
		467	manpage), with the additional members C<row> and C<col>, which are the row
		468	and column under the mouse cursor.
		469
		470	C<on_key_press> additionally receives the string rxvt-unicode would
		471	output, if any, in locale-specific encoding.
		472
		473	subwindow.
		474
192	=back	475	=back
193		476
		477	=cut
		478
		479	package urxvt;
		480
		481	use utf8;
		482	use strict;
		483	use Carp ();
		484	use Scalar::Util ();
		485	use List::Util ();
		486
		487	our $VERSION = 1;
		488	our $TERM;
		489	our @HOOKNAME;
		490	our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
		491	our %OPTION;
		492
		493	our $LIBDIR;
		494	our $RESNAME;
		495	our $RESCLASS;
		496	our $RXVTNAME;
		497
194	=head2 Variables in the C<urxvt> Package	498	=head2 Variables in the C<urxvt> Package
195		499
196	=over 4	500	=over 4
197		501
		502	=item $urxvt::LIBDIR
		503
		504	The rxvt-unicode library directory, where, among other things, the perl
		505	modules and scripts are stored.
		506
		507	=item $urxvt::RESCLASS, $urxvt::RESCLASS
		508
		509	The resource class and name rxvt-unicode uses to look up X resources.
		510
		511	=item $urxvt::RXVTNAME
		512
		513	The basename of the installed binaries, usually C<urxvt>.
		514
198	=item $urxvt::TERM	515	=item $urxvt::TERM
199		516
200	The current terminal. Whenever a callback/Hook is bein executed, this	517	The current terminal. This variable stores the current C<urxvt::term>
201	variable stores the current C<urxvt::term> object.	518	object, whenever a callback/hook is executing.
202		519
203	=back	520	=back
204		521
205	=head2 Functions in the C<urxvt> Package	522	=head2 Functions in the C<urxvt> Package
206		523
…		…
219	that calls this function.	536	that calls this function.
220		537
221	Using this function has the advantage that its output ends up in the	538	Using this function has the advantage that its output ends up in the
222	correct place, e.g. on stderr of the connecting urxvtc client.	539	correct place, e.g. on stderr of the connecting urxvtc client.
223		540
		541	Messages have a size limit of 1023 bytes currently.
		542
224	=item $time = urxvt::NOW	543	=item $time = urxvt::NOW
225		544
226	Returns the "current time" (as per the event loop).	545	Returns the "current time" (as per the event loop).
		546
		547	=item urxvt::CurrentTime
		548
		549	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
		550	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
		551	Button4Mask, Button5Mask, AnyModifier
		552
		553	=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
		554	ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
		555	PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
		556	Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
		557	KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
		558	ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
		559	FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
		560
		561	=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
		562	EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
		563	GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
		564	UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
		565	ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
		566	CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
		567	SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
		568
		569	Various constants for use in X calls and event processing.
227		570
228	=back	571	=back
229		572
230	=head2 RENDITION	573	=head2 RENDITION
231		574
…		…
258		601
259	=item $background = urxvt::GET_BASEBG $rend	602	=item $background = urxvt::GET_BASEBG $rend
260		603
261	Return the foreground/background colour index, respectively.	604	Return the foreground/background colour index, respectively.
262		605
263	=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)	606	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
264		607
265	=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)	608	=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
266		609
267	Replace the foreground/background colour in the rendition mask with the	610	Replace the foreground/background colour in the rendition mask with the
268	specified one.	611	specified one.
269		612
270	=item $value = urxvt::GET_CUSTOM ($rend)	613	=item $value = urxvt::GET_CUSTOM $rend
271		614
272	Return the "custom" value: Every rendition has 5 bits for use by	615	Return the "custom" value: Every rendition has 5 bits for use by
273	extensions. They can be set and changed as you like and are initially	616	extensions. They can be set and changed as you like and are initially
274	zero.	617	zero.
275		618
276	=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)	619	=item $rend = urxvt::SET_CUSTOM $rend, $new_value
277		620
278	Change the custom value.	621	Change the custom value.
279		622
280	=back	623	=back
281		624
282	=cut	625	=cut
283		626
284	package urxvt;
285
286	use strict;
287	use Scalar::Util ();
288
289	our $TERM;
290	our @HOOKNAME;
291	our $LIBDIR;
292
293	BEGIN {	627	BEGIN {
294	urxvt->bootstrap;
295
296	# overwrite perl's warn	628	# overwrite perl's warn
297	*CORE::GLOBAL::warn = sub {	629	*CORE::GLOBAL::warn = sub {
298	my $msg = join "", @_;	630	my $msg = join "", @_;
299	$msg .= "\n"	631	$msg .= "\n"
300	unless $msg =~ /\n$/;	632	unless $msg =~ /\n$/;
301	urxvt::warn ($msg);	633	urxvt::warn ($msg);
302	};	634	};
303	}
304		635
305	my @hook_count;	636	# %ENV is the original startup environment
		637	delete $ENV{IFS};
		638	delete $ENV{CDPATH};
		639	delete $ENV{BASH_ENV};
		640	$ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
		641	}
		642
306	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};	643	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
307		644
308	sub verbose {	645	sub verbose {
309	my ($level, $msg) = @_;	646	my ($level, $msg) = @_;
310	warn "$msg\n" if $level <= $verbosity;	647	warn "$msg\n" if $level <= $verbosity;
311	}	648	}
312		649
313	# find on_xxx subs in the package and register them	650	my %extension_pkg;
314	# as hooks
315	sub register_package($) {
316	my ($pkg) = @_;
317
318	for my $htype (0.. $#HOOKNAME) {
319	my $name = $HOOKNAME[$htype];
320
321	my $ref = $pkg->can ("on_" . lc $name)
322	or next;
323
324	$TERM->{_hook}[$htype]{$pkg} = $ref;
325	$hook_count[$htype]++
326	or set_should_invoke $htype, 1;
327	}
328	}
329
330	my $script_pkg = "script0000";
331	my %script_pkg;
332		651
333	# load a single script into its own package, once only	652	# load a single script into its own package, once only
334	sub script_package($) {	653	sub extension_package($) {
335	my ($path) = @_;	654	my ($path) = @_;
336		655
		656	no strict 'refs';
		657
337	$script_pkg{$path} ||= do {	658	$extension_pkg{$path} ||= do {
338	my $pkg = "urxvt::" . ($script_pkg++);	659	$path =~ /([^\/\\]+)$/;
		660	my $pkg = $1;
		661	$pkg =~ s/[^[:word:]]/_/g;
		662	$pkg = "urxvt::ext::$pkg";
339		663
340	verbose 3, "loading script '$path' into package '$pkg'";	664	verbose 3, "loading extension '$path' into package '$pkg'";
341		665
342	open my $fh, "<:raw", $path	666	open my $fh, "<:raw", $path
343	or die "$path: $!";	667	or die "$path: $!";
344		668
		669	@{"$pkg\::ISA"} = urxvt::term::extension::;
		670
		671	my $source =
345	my $source = "package $pkg; use strict; use utf8;\n"	672	"package $pkg; use strict; use utf8;\n"
346	. "#line 1 \"$path\"\n{\n"	673	. "#line 1 \"$path\"\n{\n"
347	. (do { local $/; <$fh> })	674	. (do { local $/; <$fh> })
348	. "\n};\n1";	675	. "\n};\n1";
349		676
		677	eval $source
350	eval $source or die "$path: $@";	678	or die "$path: $@";
351		679
352	$pkg	680	$pkg
353	}	681	}
354	}	682	}
		683
		684	our $retval; # return value for urxvt
355		685
356	# called by the rxvt core	686	# called by the rxvt core
357	sub invoke {	687	sub invoke {
358	local $TERM = shift;	688	local $TERM = shift;
359	my $htype = shift;	689	my $htype = shift;
360		690
361	if ($htype == 0) { # INIT	691	if ($htype == 0) { # INIT
362	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");	692	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
		693
		694	my %ext_arg;
363		695
364	for my $ext (split /:/, $TERM->resource ("perl_ext")) {	696	for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
		697	if ($_ eq "default") {
		698	$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback);
		699	} elsif (/^-(.*)$/) {
		700	delete $ext_arg{$1};
		701	} elsif (/^([^<]+)<(.*)>$/) {
		702	push @{ $ext_arg{$1} }, $2;
		703	} else {
		704	$ext_arg{$_} ||= [];
		705	}
		706	}
		707
		708	while (my ($ext, $argv) = each %ext_arg) {
365	my @files = grep -f $_, map "$_/$ext", @dirs;	709	my @files = grep -f $_, map "$_/$ext", @dirs;
366		710
367	if (@files) {	711	if (@files) {
368	register_package script_package $files[0];	712	$TERM->register_package (extension_package $files[0], $argv);
369	} else {	713	} else {
370	warn "perl extension '$ext' not found in perl library search path\n";	714	warn "perl extension '$ext' not found in perl library search path\n";
371	}	715	}
372	}	716	}
373		717
374	} elsif ($htype == 1) { # DESTROY	718	eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval");
		719	warn $@ if $@;
		720	}
		721
		722	$retval = undef;
		723
375	if (my $hook = $TERM->{_hook}) {	724	if (my $cb = $TERM->{_hook}[$htype]) {
376	for my $htype (0..$#$hook) {	725	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
377	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }	726	if $verbosity >= 10;
378	or set_should_invoke $htype, 0;	727
		728	keys %$cb;
		729
		730	while (my ($pkg, $cb) = each %$cb) {
		731	$retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) }
		732	and last;
		733
		734	if ($@) {
		735	$TERM->ungrab; # better to lose the grab than the session
		736	warn $@;
379	}	737	}
380	}	738	}
		739
		740	verbose 11, "$HOOKNAME[$htype] returning <$retval>"
		741	if $verbosity >= 11;
381	}	742	}
382		743
383	my $cb = $TERM->{_hook}[$htype]	744	if ($htype == 1) { # DESTROY
384	or return;	745	# clear package objects
		746	%$_ = () for values %{ $TERM->{_pkg} };
385		747
386	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"	748	# clear package
387	if $verbosity >= 10;	749	%$TERM = ();
388
389	keys %$cb;
390
391	while (my ($pkg, $cb) = each %$cb) {
392	return 1
393	if $cb->(
394	$TERM->{$pkg} ||= do {
395	my $proxy = bless { }, urxvt::term::proxy::;
396	Scalar::Util::weaken ($proxy->{term} = $TERM);
397	$proxy
398	},
399	@_,
400	);
401	}	750	}
402		751
		752	$retval
		753	}
		754
		755	sub exec_async(@) {
		756	my $pid = fork;
		757
		758	return
		759	if !defined $pid or $pid;
		760
		761	%ENV = %{ $TERM->env };
		762
		763	exec @_;
		764	_exit 255;
		765	}
		766
		767	# urxvt::term::extension
		768
		769	package urxvt::term::extension;
		770
		771	sub enable {
		772	my ($self, %hook) = @_;
		773	my $pkg = $self->{_pkg};
		774
		775	while (my ($name, $cb) = each %hook) {
		776	my $htype = $HOOKTYPE{uc $name};
		777	defined $htype
		778	or Carp::croak "unsupported hook type '$name'";
		779
		780	$self->set_should_invoke ($htype, +1)
		781	unless exists $self->{term}{_hook}[$htype]{$pkg};
		782
		783	$self->{term}{_hook}[$htype]{$pkg} = $cb;
403	0	784	}
404	}	785	}
405		786
406	sub urxvt::term::proxy::AUTOLOAD {	787	sub disable {
407	$urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/	788	my ($self, @hook) = @_;
		789	my $pkg = $self->{_pkg};
		790
		791	for my $name (@hook) {
		792	my $htype = $HOOKTYPE{uc $name};
		793	defined $htype
		794	or Carp::croak "unsupported hook type '$name'";
		795
		796	$self->set_should_invoke ($htype, -1)
		797	if delete $self->{term}{_hook}[$htype]{$pkg};
		798	}
		799	}
		800
		801	our $AUTOLOAD;
		802
		803	sub AUTOLOAD {
		804	$AUTOLOAD =~ /:([^:]+)$/
408	or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";	805	or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
409		806
410	eval qq{	807	eval qq{
411	sub $urxvt::term::proxy::AUTOLOAD {	808	sub $AUTOLOAD {
412	my \$proxy = shift;	809	my \$proxy = shift;
413	\$proxy->{term}->$1 (\@_)	810	\$proxy->{term}->$1 (\@_)
414	}	811	}
415	1	812	1
416	} or die "FATAL: unable to compile method forwarder: $@";	813	} or die "FATAL: unable to compile method forwarder: $@";
417		814
418	goto &$urxvt::term::proxy::AUTOLOAD;	815	goto &$AUTOLOAD;
419	}	816	}
		817
		818	sub DESTROY {
		819	# nop
		820	}
		821
		822	# urxvt::destroy_hook
		823
		824	sub urxvt::destroy_hook::DESTROY {
		825	${$_[0]}->();
		826	}
		827
		828	sub urxvt::destroy_hook(&) {
		829	bless \shift, urxvt::destroy_hook::
		830	}
		831
		832	package urxvt::anyevent;
		833
		834	=head2 The C<urxvt::anyevent> Class
		835
		836	The sole purpose of this class is to deliver an interface to the
		837	C<AnyEvent> module - any module using it will work inside urxvt without
		838	further programming. The only exception is that you cannot wait on
		839	condition variables, but non-blocking condvar use is ok. What this means
		840	is that you cannot use blocking APIs, but the non-blocking variant should
		841	work.
		842
		843	=cut
		844
		845	our $VERSION = 1;
		846
		847	$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
		848	push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
		849
		850	sub timer {
		851	my ($class, %arg) = @_;
		852
		853	my $cb = $arg{cb};
		854
		855	urxvt::timer
		856	->new
		857	->start (urxvt::NOW + $arg{after})
		858	->cb (sub {
		859	$_[0]->stop; # need to cancel manually
		860	$cb->();
		861	})
		862	}
		863
		864	sub io {
		865	my ($class, %arg) = @_;
		866
		867	my $cb = $arg{cb};
		868
		869	bless [$arg{fh}, urxvt::iow
		870	->new
		871	->fd (fileno $arg{fh})
		872	->events (($arg{poll} =~ /r/ ? 1 : 0)
		873	| ($arg{poll} =~ /w/ ? 2 : 0))
		874	->start
		875	->cb (sub {
		876	$cb->(($_[1] & 1 ? 'r' : '')
		877	. ($_[1] & 2 ? 'w' : ''));
		878	})],
		879	urxvt::anyevent::
		880	}
		881
		882	sub DESTROY {
		883	$_[0][1]->stop;
		884	}
		885
		886	sub condvar {
		887	bless \my $flag, urxvt::anyevent::condvar::
		888	}
		889
		890	sub urxvt::anyevent::condvar::broadcast {
		891	${$_[0]}++;
		892	}
		893
		894	sub urxvt::anyevent::condvar::wait {
		895	unless (${$_[0]}) {
		896	Carp::croak "AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API";
		897	}
		898	}
		899
		900	package urxvt::term;
420		901
421	=head2 The C<urxvt::term> Class	902	=head2 The C<urxvt::term> Class
422		903
423	=over 4	904	=over 4
		905
		906	=cut
		907
		908	# find on_xxx subs in the package and register them
		909	# as hooks
		910	sub register_package {
		911	my ($self, $pkg, $argv) = @_;
		912
		913	my $proxy = bless {
		914	_pkg => $pkg,
		915	argv => $argv,
		916	}, $pkg;
		917	Scalar::Util::weaken ($proxy->{term} = $self);
		918
		919	$self->{_pkg}{$pkg} = $proxy;
		920
		921	for my $name (@HOOKNAME) {
		922	if (my $ref = $pkg->can ("on_" . lc $name)) {
		923	$proxy->enable ($name => $ref);
		924	}
		925	}
		926	}
		927
		928	=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
		929
		930	Creates a new terminal, very similar as if you had started it with system
		931	C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
		932	hash which defines the environment of the new terminal.
		933
		934	Croaks (and probably outputs an error message) if the new instance
		935	couldn't be created. Returns C<undef> if the new instance didn't
		936	initialise perl, and the terminal object otherwise. The C<init> and
		937	C<start> hooks will be called during this call.
		938
		939	=cut
		940
		941	sub new {
		942	my ($class, $env, @args) = @_;
		943
		944	_new ([ map "$_=$env->{$_}", keys %$env ], @args);
		945	}
		946
		947	=item $term->destroy
		948
		949	Destroy the terminal object (close the window, free resources
		950	etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
		951	watchers (timers, io watchers) are still active.
		952
		953	=item $isset = $term->option ($optval[, $set])
		954
		955	Returns true if the option specified by C<$optval> is enabled, and
		956	optionally change it. All option values are stored by name in the hash
		957	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
		958
		959	Here is a a likely non-exhaustive list of option names, please see the
		960	source file F</src/optinc.h> to see the actual list:
		961
		962	borderLess console cursorBlink cursorUnderline hold iconic insecure
		963	intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
		964	override-redirect pastableTabs pointerBlank reverseVideo scrollBar
		965	scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
		966	scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
		967	transparent tripleclickwords utmpInhibit visualBell
424		968
425	=item $value = $term->resource ($name[, $newval])	969	=item $value = $term->resource ($name[, $newval])
426		970
427	Returns the current resource value associated with a given name and	971	Returns the current resource value associated with a given name and
428	optionally sets a new value. Setting values is most useful in the C<init>	972	optionally sets a new value. Setting values is most useful in the C<init>
…		…
438		982
439	Please note that resource strings will currently only be freed when the	983	Please note that resource strings will currently only be freed when the
440	terminal is destroyed, so changing options frequently will eat memory.	984	terminal is destroyed, so changing options frequently will eat memory.
441		985
442	Here is a a likely non-exhaustive list of resource names, not all of which	986	Here is a a likely non-exhaustive list of resource names, not all of which
443	are supported in every build, please see the source to see the actual	987	are supported in every build, please see the source file F</src/rsinc.h>
444	list:	988	to see the actual list:
445		989
446	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont	990	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
447	borderLess color cursorBlink cursorUnderline cutchars delete_key	991	borderLess color cursorBlink cursorUnderline cutchars delete_key
448	display_name embed ext_bwidth fade font geometry hold iconName	992	display_name embed ext_bwidth fade font geometry hold iconName
449	imFont imLocale inputMethod insecure int_bwidth intensityStyles	993	imFont imLocale inputMethod insecure int_bwidth intensityStyles
450	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier	994	italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
451	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext	995	mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
452	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd	996	perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
453	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating	997	preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
454	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput	998	scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
455	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle	999	scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
456	shade term_name title transparent transparent_all tripleclickwords	1000	secondaryScreen secondaryScroll selectstyle shade term_name title
457	utmpInhibit visualBell	1001	transient_for transparent transparent_all tripleclickwords utmpInhibit
		1002	visualBell
458		1003
459	=cut	1004	=cut
460		1005
461	sub urxvt::term::resource($$;$) {	1006	sub resource($$;$) {
462	my ($self, $name) = (shift, shift);	1007	my ($self, $name) = (shift, shift);
463	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);	1008	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
464	goto &urxvt::term::_resource;	1009	&urxvt::term::_resource
465	}	1010	}
		1011
		1012	=item $value = $term->x_resource ($pattern)
		1013
		1014	Returns the X-Resource for the given pattern, excluding the program or
		1015	class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
		1016	same value as used by this instance of rxvt-unicode. Returns C<undef> if no
		1017	resource with that pattern exists.
		1018
		1019	This method should only be called during the C<on_start> hook, as there is
		1020	only one resource database per display, and later invocations might return
		1021	the wrong resources.
		1022
		1023	=item $success = $term->parse_keysym ($keysym_spec, $command_string)
		1024
		1025	Adds a keymap translation exactly as specified via a resource. See the
		1026	C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
		1027
		1028	=item $rend = $term->rstyle ([$new_rstyle])
		1029
		1030	Return and optionally change the current rendition. Text that is output by
		1031	the terminal application will use this style.
		1032
		1033	=item ($row, $col) = $term->screen_cur ([$row, $col])
		1034
		1035	Return the current coordinates of the text cursor position and optionally
		1036	set it (which is usually bad as applications don't expect that).
466		1037
467	=item ($row, $col) = $term->selection_mark ([$row, $col])	1038	=item ($row, $col) = $term->selection_mark ([$row, $col])
468		1039
469	=item ($row, $col) = $term->selection_beg ([$row, $col])	1040	=item ($row, $col) = $term->selection_beg ([$row, $col])
470		1041
471	=item ($row, $col) = $term->selection_end ([$row, $col])	1042	=item ($row, $col) = $term->selection_end ([$row, $col])
472		1043
473	Return the current values of the selection mark, begin or end positions,	1044	Return the current values of the selection mark, begin or end positions,
474	and optionally set them to new values.	1045	and optionally set them to new values.
475		1046
		1047	=item $term->selection_make ($eventtime[, $rectangular])
		1048
		1049	Tries to make a selection as set by C<selection_beg> and
		1050	C<selection_end>. If C<$rectangular> is true (default: false), a
		1051	rectangular selection will be made. This is the prefered function to make
		1052	a selection.
		1053
476	=item $success = $term->selection_grab ($eventtime)	1054	=item $success = $term->selection_grab ($eventtime)
477		1055
478	Try to request the primary selection from the server (for example, as set	1056	Try to request the primary selection text from the server (for example, as
479	by the next method).	1057	set by the next method). No visual feedback will be given. This function
		1058	is mostly useful from within C<on_sel_grab> hooks.
480		1059
481	=item $oldtext = $term->selection ([$newtext])	1060	=item $oldtext = $term->selection ([$newtext])
482		1061
483	Return the current selection text and optionally replace it by C<$newtext>.	1062	Return the current selection text and optionally replace it by C<$newtext>.
484		1063
485	#=item $term->overlay ($x, $y, $text)	1064	=item $term->overlay_simple ($x, $y, $text)
486	#	1065
487	#Create a simple multi-line overlay box. See the next method for details.	1066	Create a simple multi-line overlay box. See the next method for details.
488	#	1067
489	#=cut	1068	=cut
490		1069
491	sub urxvt::term::scr_overlay {	1070	sub overlay_simple {
492	die;
493	my ($self, $x, $y, $text) = @_;	1071	my ($self, $x, $y, $text) = @_;
494		1072
495	my @lines = split /\n/, $text;	1073	my @lines = split /\n/, $text;
496		1074
497	my $w = 0;	1075	my $w = List::Util::max map $self->strwidth ($_), @lines;
498	for (map $self->strwidth ($_), @lines) {
499	$w = $_ if $w < $_;
500	}
501		1076
502	$self->scr_overlay_new ($x, $y, $w, scalar @lines);	1077	my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
503	$self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;	1078	$overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
		1079
		1080	$overlay
504	}	1081	}
505		1082
506	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])	1083	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
507		1084
508	Create a new (empty) overlay at the given position with the given	1085	Create a new (empty) overlay at the given position with the given
…		…
536		1113
537	If hidden, display the overlay again.	1114	If hidden, display the overlay again.
538		1115
539	=back	1116	=back
540		1117
		1118	=item $popup = $term->popup ($event)
		1119
		1120	Creates a new C<urxvt::popup> object that implements a popup menu. The
		1121	C<$event> I<must> be the event causing the menu to pop up (a button event,
		1122	currently).
		1123
		1124	=cut
		1125
		1126	sub popup {
		1127	my ($self, $event) = @_;
		1128
		1129	$self->grab ($event->{time}, 1)
		1130	or return;
		1131
		1132	my $popup = bless {
		1133	term => $self,
		1134	event => $event,
		1135	}, urxvt::popup::;
		1136
		1137	Scalar::Util::weaken $popup->{term};
		1138
		1139	$self->{_destroy}{$popup} = urxvt::destroy_hook { $popup->{popup}->destroy };
		1140	Scalar::Util::weaken $self->{_destroy}{$popup};
		1141
		1142	$popup
		1143	}
		1144
541	=item $cellwidth = $term->strwidth $string	1145	=item $cellwidth = $term->strwidth ($string)
542		1146
543	Returns the number of screen-cells this string would need. Correctly	1147	Returns the number of screen-cells this string would need. Correctly
544	accounts for wide and combining characters.	1148	accounts for wide and combining characters.
545		1149
546	=item $octets = $term->locale_encode $string	1150	=item $octets = $term->locale_encode ($string)
547		1151
548	Convert the given text string into the corresponding locale encoding.	1152	Convert the given text string into the corresponding locale encoding.
549		1153
550	=item $string = $term->locale_decode $octets	1154	=item $string = $term->locale_decode ($octets)
551		1155
552	Convert the given locale-encoded octets into a perl string.	1156	Convert the given locale-encoded octets into a perl string.
		1157
		1158	=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
		1159
		1160	XORs the rendition values in the given span with the provided value
		1161	(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
		1162	refresh hooks to provide effects similar to the selection.
		1163
		1164	=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
		1165
		1166	Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
		1167	whitespace will additionally be xored with the C<$rstyle2>, which defaults
		1168	to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
		1169	it instead. Both styles I<MUST NOT> contain font styles.
		1170
		1171	=item $term->scr_bell
		1172
		1173	Ring the bell!
		1174
		1175	=item $term->scr_add_lines ($string)
		1176
		1177	Write the given text string to the screen, as if output by the application
		1178	running inside the terminal. It may not contain command sequences (escape
		1179	codes), but is free to use line feeds, carriage returns and tabs. The
		1180	string is a normal text string, not in locale-dependent encoding.
		1181
		1182	Normally its not a good idea to use this function, as programs might be
		1183	confused by changes in cursor position or scrolling. Its useful inside a
		1184	C<on_add_lines> hook, though.
		1185
		1186	=item $term->cmd_parse ($octets)
		1187
		1188	Similar to C<scr_add_lines>, but the argument must be in the
		1189	locale-specific encoding of the terminal and can contain command sequences
		1190	(escape codes) that will be interpreted.
553		1191
554	=item $term->tt_write ($octets)	1192	=item $term->tt_write ($octets)
555		1193
556	Write the octets given in C<$data> to the tty (i.e. as program input). To	1194	Write the octets given in C<$data> to the tty (i.e. as program input). To
557	pass characters instead of octets, you should convert your strings first	1195	pass characters instead of octets, you should convert your strings first
558	to the locale-specific encoding using C<< $term->locale_encode >>.	1196	to the locale-specific encoding using C<< $term->locale_encode >>.
559		1197
		1198	=item $old_events = $term->pty_ev_events ([$new_events])
		1199
		1200	Replaces the event mask of the pty watcher by the given event mask. Can
		1201	be used to suppress input and output handling to the pty/tty. See the
		1202	description of C<< urxvt::timer->events >>. Make sure to always restore
		1203	the previous value.
		1204
		1205	=item $windowid = $term->parent
		1206
		1207	Return the window id of the toplevel window.
		1208
		1209	=item $windowid = $term->vt
		1210
		1211	Return the window id of the terminal window.
		1212
		1213	=item $term->vt_emask_add ($x_event_mask)
		1214
		1215	Adds the specified events to the vt event mask. Useful e.g. when you want
		1216	to receive pointer events all the times:
		1217
		1218	$term->vt_emask_add (urxvt::PointerMotionMask);
		1219
		1220	=item $window_width = $term->width
		1221
		1222	=item $window_height = $term->height
		1223
		1224	=item $font_width = $term->fwidth
		1225
		1226	=item $font_height = $term->fheight
		1227
		1228	=item $font_ascent = $term->fbase
		1229
560	=item $nrow = $term->nrow	1230	=item $terminal_rows = $term->nrow
561		1231
562	=item $ncol = $term->ncol	1232	=item $terminal_columns = $term->ncol
563		1233
564	Return the number of rows/columns of the terminal window (i.e. as	1234	=item $has_focus = $term->focus
565	specified by C<-geometry>, excluding any scrollback).
566		1235
		1236	=item $is_mapped = $term->mapped
		1237
		1238	=item $max_scrollback = $term->saveLines
		1239
		1240	=item $nrow_plus_saveLines = $term->total_rows
		1241
		1242	=item $topmost_scrollback_row = $term->top_row
		1243
		1244	Return various integers describing terminal characteristics.
		1245
		1246	=item $x_display = $term->display_id
		1247
		1248	Return the DISPLAY used by rxvt-unicode.
		1249
		1250	=item $lc_ctype = $term->locale
		1251
		1252	Returns the LC_CTYPE category string used by this rxvt-unicode.
		1253
567	=item $nsaved = $term->nsaved	1254	=item $env = $term->env
568		1255
569	Returns the number of lines in the scrollback buffer.	1256	Returns a copy of the environment in effect for the terminal as a hashref
		1257	similar to C<\%ENV>.
		1258
		1259	=cut
		1260
		1261	sub env {
		1262	if (my $env = $_[0]->_env) {
		1263	+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), @$env }
		1264	} else {
		1265	+{ %ENV }
		1266	}
		1267	}
		1268
		1269	=item $modifiermask = $term->ModLevel3Mask
		1270
		1271	=item $modifiermask = $term->ModMetaMask
		1272
		1273	=item $modifiermask = $term->ModNumLockMask
		1274
		1275	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
		1276	AltGr), the meta key (often Alt) and the num lock key, if applicable.
570		1277
571	=item $view_start = $term->view_start ([$newvalue])	1278	=item $view_start = $term->view_start ([$newvalue])
572		1279
573	Returns the negative row number of the topmost line. Minimum value is	1280	Returns the row number of the topmost displayed line. Maximum value is
574	C<0>, which displays the normal terminal contents. Larger values scroll	1281	C<0>, which displays the normal terminal contents. Lower values scroll
575	this many lines into the scrollback buffer.	1282	this many lines into the scrollback buffer.
576		1283
577	=item $term->want_refresh	1284	=item $term->want_refresh
578		1285
579	Requests a screen refresh. At the next opportunity, rxvt-unicode will	1286	Requests a screen refresh. At the next opportunity, rxvt-unicode will
…		…
637	about the logical line that row C<$row_number> is part of. It supports the	1344	about the logical line that row C<$row_number> is part of. It supports the
638	following methods:	1345	following methods:
639		1346
640	=over 4	1347	=over 4
641		1348
642	=item $text = $line->t	1349	=item $text = $line->t ([$new_text])
643		1350
644	Returns the full text of the line, similar to C<ROW_t>	1351	Returns or replaces the full text of the line, similar to C<ROW_t>
645		1352
646	=item $rend = $line->r	1353	=item $rend = $line->r ([$new_rend])
647		1354
648	Returns the full rendition array of the line, similar to C<ROW_r>	1355	Returns or replaces the full rendition array of the line, similar to C<ROW_r>
649		1356
650	=item $length = $line->l	1357	=item $length = $line->l
651		1358
652	Returns the length of the line in cells, similar to C<ROW_l>.	1359	Returns the length of the line in cells, similar to C<ROW_l>.
653		1360
…		…
658	Return the row number of the first/last row of the line, respectively.	1365	Return the row number of the first/last row of the line, respectively.
659		1366
660	=item $offset = $line->offset_of ($row, $col)	1367	=item $offset = $line->offset_of ($row, $col)
661		1368
662	Returns the character offset of the given row|col pair within the logical	1369	Returns the character offset of the given row|col pair within the logical
663	line.	1370	line. Works for rows outside the line, too, and returns corresponding
		1371	offsets outside the string.
664		1372
665	=item ($row, $col) = $line->coord_of ($offset)	1373	=item ($row, $col) = $line->coord_of ($offset)
666		1374
667	Translates a string offset into terminal coordinates again.	1375	Translates a string offset into terminal coordinates again.
668		1376
669	=back	1377	=back
670		1378
671	=cut	1379	=cut
672		1380
673	sub urxvt::term::line {	1381	sub line {
674	my ($self, $row) = @_;	1382	my ($self, $row) = @_;
675		1383
676	my $maxrow = $self->nrow - 1;	1384	my $maxrow = $self->nrow - 1;
677		1385
678	my ($beg, $end) = ($row, $row);	1386	my ($beg, $end) = ($row, $row);
…		…
682		1390
683	bless {	1391	bless {
684	term => $self,	1392	term => $self,
685	beg => $beg,	1393	beg => $beg,
686	end => $end,	1394	end => $end,
		1395	ncol => $self->ncol,
687	len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),	1396	len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),
688	}, urxvt::line::	1397	}, urxvt::line::
689	}	1398	}
690		1399
691	sub urxvt::line::t {	1400	sub urxvt::line::t {
692	my ($self) = @_;	1401	my ($self) = @_;
693		1402
		1403	if (@_ > 1)
		1404	{
		1405	$self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
		1406	for $self->{beg} .. $self->{end};
		1407	}
		1408
		1409	defined wantarray &&
694	substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),	1410	substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),
695	0, $self->{len}	1411	0, $self->{len}
696	}	1412	}
697		1413
698	sub urxvt::line::r {	1414	sub urxvt::line::r {
699	my ($self) = @_;	1415	my ($self) = @_;
700		1416
		1417	if (@_ > 1)
		1418	{
		1419	$self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
		1420	for $self->{beg} .. $self->{end};
		1421	}
		1422
		1423	if (defined wantarray) {
701	my $rend = [	1424	my $rend = [
702	map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}	1425	map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}
703	];	1426	];
704	$#$rend = $self->{len} - 1;	1427	$#$rend = $self->{len} - 1;
705	$rend	1428	return $rend;
		1429	}
		1430
		1431	()
706	}	1432	}
707		1433
708	sub urxvt::line::beg { $_[0]{beg} }	1434	sub urxvt::line::beg { $_[0]{beg} }
709	sub urxvt::line::end { $_[0]{end} }	1435	sub urxvt::line::end { $_[0]{end} }
710	sub urxvt::line::l { $_[0]{len} }	1436	sub urxvt::line::l { $_[0]{len} }
711		1437
712	sub urxvt::line::offset_of {	1438	sub urxvt::line::offset_of {
713	my ($self, $row, $col) = @_;	1439	my ($self, $row, $col) = @_;
714		1440
715	($row - $self->{beg}) * $self->{term}->ncol + $col	1441	($row - $self->{beg}) * $self->{ncol} + $col
716	}	1442	}
717		1443
718	sub urxvt::line::coord_of {	1444	sub urxvt::line::coord_of {
719	my ($self, $offset) = @_;	1445	my ($self, $offset) = @_;
720		1446
721	use integer;	1447	use integer;
722		1448
723	(	1449	(
724	$offset / $self->{term}->ncol + $self->{beg},	1450	$offset / $self->{ncol} + $self->{beg},
725	$offset % $self->{term}->ncol	1451	$offset % $self->{ncol}
726	)	1452	)
727	}	1453	}
728		1454
729	=item ($row, $col) = $line->coord_of ($offset)
730	=item $text = $term->special_encode $string	1455	=item $text = $term->special_encode $string
731		1456
732	Converts a perl string into the special encoding used by rxvt-unicode,	1457	Converts a perl string into the special encoding used by rxvt-unicode,
733	where one character corresponds to one screen cell. See	1458	where one character corresponds to one screen cell. See
734	C<< $term->ROW_t >> for details.	1459	C<< $term->ROW_t >> for details.
735		1460
736	=item $string = $term->special_decode $text	1461	=item $string = $term->special_decode $text
737		1462
738	Converts rxvt-unicodes text reprsentation into a perl string. See	1463	Converts rxvt-unicodes text reprsentation into a perl string. See
739	C<< $term->ROW_t >> for details.	1464	C<< $term->ROW_t >> for details.
		1465
		1466	=item $success = $term->grab_button ($button, $modifiermask)
		1467
		1468	Registers a synchronous button grab. See the XGrabButton manpage.
		1469
		1470	=item $success = $term->grab ($eventtime[, $sync])
		1471
		1472	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
		1473	synchronous (C<$sync> is true). Also remembers the grab timestampe.
		1474
		1475	=item $term->allow_events_async
		1476
		1477	Calls XAllowEvents with AsyncBoth for the most recent grab.
		1478
		1479	=item $term->allow_events_sync
		1480
		1481	Calls XAllowEvents with SyncBoth for the most recent grab.
		1482
		1483	=item $term->allow_events_replay
		1484
		1485	Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
		1486	recent grab.
		1487
		1488	=item $term->ungrab
		1489
		1490	Calls XUngrab for the most recent grab. Is called automatically on
		1491	evaluation errors, as it is better to lose the grab in the error case as
		1492	the session.
		1493
		1494	=back
		1495
		1496	=cut
		1497
		1498	package urxvt::popup;
		1499
		1500	=head2 The C<urxvt::popup> Class
		1501
		1502	=over 4
		1503
		1504	=cut
		1505
		1506	sub add_item {
		1507	my ($self, $item) = @_;
		1508
		1509	$item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal};
		1510	$item->{rend}{hover} = "\x1b[0;30;46m" unless exists $item->{rend}{hover};
		1511	$item->{rend}{active} = "\x1b[m" unless exists $item->{rend}{active};
		1512
		1513	$item->{render} ||= sub { $_[0]{text} };
		1514
		1515	push @{ $self->{item} }, $item;
		1516	}
		1517
		1518	=item $popup->add_title ($title)
		1519
		1520	Adds a non-clickable title to the popup.
		1521
		1522	=cut
		1523
		1524	sub add_title {
		1525	my ($self, $title) = @_;
		1526
		1527	$self->add_item ({
		1528	rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
		1529	text => $title,
		1530	activate => sub { },
		1531	});
		1532	}
		1533
		1534	=item $popup->add_separator ([$sepchr])
		1535
		1536	Creates a separator, optionally using the character given as C<$sepchr>.
		1537
		1538	=cut
		1539
		1540	sub add_separator {
		1541	my ($self, $sep) = @_;
		1542
		1543	$sep ||= "=";
		1544
		1545	$self->add_item ({
		1546	rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
		1547	text => "",
		1548	render => sub { $sep x $self->{term}->ncol },
		1549	activate => sub { },
		1550	});
		1551	}
		1552
		1553	=item $popup->add_button ($text, $cb)
		1554
		1555	Adds a clickable button to the popup. C<$cb> is called whenever it is
		1556	selected.
		1557
		1558	=cut
		1559
		1560	sub add_button {
		1561	my ($self, $text, $cb) = @_;
		1562
		1563	$self->add_item ({ type => "button", text => $text, activate => $cb});
		1564	}
		1565
		1566	=item $popup->add_toggle ($text, $cb, $initial_value)
		1567
		1568	Adds a toggle/checkbox item to the popup. Teh callback gets called
		1569	whenever it gets toggled, with a boolean indicating its value as its first
		1570	argument.
		1571
		1572	=cut
		1573
		1574	sub add_toggle {
		1575	my ($self, $text, $cb, $value) = @_;
		1576
		1577	my $item; $item = {
		1578	type => "button",
		1579	text => " $text",
		1580	value => $value,
		1581	render => sub { ($_[0]{value} ? "* " : " ") . $text },
		1582	activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
		1583	};
		1584
		1585	$self->add_item ($item);
		1586	}
		1587
		1588	=item $popup->show
		1589
		1590	Displays the popup (which is initially hidden).
		1591
		1592	=cut
		1593
		1594	sub show {
		1595	my ($self) = @_;
		1596
		1597	local $urxvt::popup::self = $self;
		1598
		1599	my $env = $self->{term}->env;
		1600	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
		1601	delete $env->{LC_ALL};
		1602	$env->{LC_CTYPE} = $self->{term}->locale;
		1603
		1604	urxvt::term->new ($env, "popup",
		1605	"--perl-lib" => "", "--perl-ext-common" => "",
		1606	"-pty-fd" => -1, "-sl" => 0, "-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
		1607	"--transient-for" => $self->{term}->parent,
		1608	"-display" => $self->{term}->display_id,
		1609	"-pe" => "urxvt-popup")
		1610	or die "unable to create popup window\n";
		1611	}
		1612
		1613	sub DESTROY {
		1614	my ($self) = @_;
		1615
		1616	delete $self->{term}{_destroy}{$self};
		1617	$self->{term}->ungrab;
		1618	}
740		1619
741	=back	1620	=back
742		1621
743	=head2 The C<urxvt::timer> Class	1622	=head2 The C<urxvt::timer> Class
744		1623
…		…
785		1664
786	=item $timer = $timer->start ($tstamp)	1665	=item $timer = $timer->start ($tstamp)
787		1666
788	Set the event trigger time to C<$tstamp> and start the timer.	1667	Set the event trigger time to C<$tstamp> and start the timer.
789		1668
		1669	=item $timer = $timer->after ($delay)
		1670
		1671	Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
		1672
790	=item $timer = $timer->stop	1673	=item $timer = $timer->stop
791		1674
792	Stop the timer.	1675	Stop the timer.
793		1676
794	=back	1677	=back
…		…
799		1682
800	$term->{socket} = ...	1683	$term->{socket} = ...
801	$term->{iow} = urxvt::iow	1684	$term->{iow} = urxvt::iow
802	->new	1685	->new
803	->fd (fileno $term->{socket})	1686	->fd (fileno $term->{socket})
804	->events (1) # wait for read data	1687	->events (urxvt::EVENT_READ)
805	->start	1688	->start
806	->cb (sub {	1689	->cb (sub {
807	my ($iow, $revents) = @_;	1690	my ($iow, $revents) = @_;
808	# $revents must be 1 here, no need to check	1691	# $revents must be 1 here, no need to check
809	sysread $term->{socket}, my $buf, 8192	1692	sysread $term->{socket}, my $buf, 8192
…		…
826		1709
827	Set the filedescriptor (not handle) to watch.	1710	Set the filedescriptor (not handle) to watch.
828		1711
829	=item $iow = $iow->events ($eventmask)	1712	=item $iow = $iow->events ($eventmask)
830		1713
831	Set the event mask to watch. Bit #0 (value C<1>) enables watching for read	1714	Set the event mask to watch. The only allowed values are
832	data, Bit #1 (value C<2>) enables watching for write data.	1715	C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed
		1716	together, or C<urxvt::EVENT_NONE>.
833		1717
834	=item $iow = $iow->start	1718	=item $iow = $iow->start
835		1719
836	Start watching for requested events on the given handle.	1720	Start watching for requested events on the given handle.
837		1721
…		…
848	This variable controls the verbosity level of the perl extension. Higher	1732	This variable controls the verbosity level of the perl extension. Higher
849	numbers indicate more verbose output.	1733	numbers indicate more verbose output.
850		1734
851	=over 4	1735	=over 4
852		1736
853	=item 0 - only fatal messages	1737	=item == 0 - fatal messages
854		1738
855	=item 3 - script loading and management	1739	=item >= 3 - script loading and management
856		1740
857	=item 10 - all events received	1741	=item >=10 - all called hooks
		1742
		1743	=item >=11 - hook reutrn values
858		1744
859	=back	1745	=back
860		1746
861	=head1 AUTHOR	1747	=head1 AUTHOR
862		1748

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