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Comparing rxvt-unicode/src/urxvt.pm (file contents):
Revision 1.33 by root, Thu Jan 5 01:04:10 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 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	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.
60		182
61	=item digital-clock	183	=item digital-clock
62		184
63	Displays a digital clock using the built-in overlay.	185	Displays a digital clock using the built-in overlay.
64		186
…		…
66		188
67	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
68	window. Illustrates overwriting the refresh callbacks to create your own	190	window. Illustrates overwriting the refresh callbacks to create your own
69	overlays or changes.	191	overlays or changes.
70		192
71	=item mark-urls	193	=item selection-pastebin
72		194
73	A not very useful example of filtering all text output to the terminal, by	195	This is a little rarely useful extension that Uploads the selection as
74	underlining all urls that matches a certain regex (i.e. some urls :). It	196	textfile to a remote site (or does other things). (The implementation is
75	is not very useful because urls that are output in multiple steps (e.g.	197	not currently secure for use in a multiuser environment as it writes to
76	when typing them) do not get marked.	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/%
77		221
78	=back	222	=back
		223
		224	=head1 API DOCUMENTATION
79		225
80	=head2 General API Considerations	226	=head2 General API Considerations
81		227
82	All objects (such as terminals, time watchers etc.) are typical	228	All objects (such as terminals, time watchers etc.) are typical
83	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
…		…
96	=over 4	242	=over 4
97		243
98	=item $text	244	=item $text
99		245
100	Rxvt-unicodes special way of encoding text, where one "unicode" character	246	Rxvt-unicodes special way of encoding text, where one "unicode" character
101	always represents one screen cell. See L<row_t> for a discussion of this format.	247	always represents one screen cell. See L<ROW_t> for a discussion of this format.
102		248
103	=item $string	249	=item $string
104		250
105	A perl text string, with an emphasis on I<text>. It can store all unicode	251	A perl text string, with an emphasis on I<text>. It can store all unicode
106	characters and is to be distinguished with text encoded in a specific	252	characters and is to be distinguished with text encoded in a specific
…		…
111	Either binary data or - more common - a text string encoded in a	257	Either binary data or - more common - a text string encoded in a
112	locale-specific way.	258	locale-specific way.
113		259
114	=back	260	=back
115		261
		262	=head2 Extension Objects
		263
		264	Very perl extension is a perl class. A separate perl object is created
		265	for each terminal and each extension and passed as the first parameter to
		266	hooks. So extensions can use their C<$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
116	=head2 Hooks	295	=head2 Hooks
117		296
118	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
119	called whenever the relevant event happens.	298	called whenever the relevant event happens.
120		299
121	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
122	and extension package. You can call all C<urxvt::term> methods on it, but	301	the in the C<Extension Objects> section.
123	its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
124	object that is shared between all packages is stored in the C<term>
125	member.
126		302
127	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
128	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
129	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.
130		306
131	When in doubt, return a false value (preferably C<()>).	307	I<< When in doubt, return a false value (preferably C<()>). >>
132		308
133	=over 4	309	=over 4
134		310
135	=item on_init $term	311	=item on_init $term
136		312
137	Called after a new terminal object has been initialized, but before	313	Called after a new terminal object has been initialized, but before
138	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.
139		318
140	=item on_reset $term	319	=item on_reset $term
141		320
142	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
143	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
…		…
168	=item on_sel_extend $term	347	=item on_sel_extend $term
169		348
170	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
171	click) and is either supposed to return false (normal operation), or	350	click) and is either supposed to return false (normal operation), or
172	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
173	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.
174		355
175	See the F<selection> example extension.	356	See the F<selection> example extension.
176
177	=item on_focus_in $term
178
179	Called whenever the window gets the keyboard focus, before urxvt does
180	focus in processing.
181
182	=item on_focus_out $term
183
184	Called wheneever the window loses keyboard focus, before urxvt does focus
185	out processing.
186		357
187	=item on_view_change $term, $offset	358	=item on_view_change $term, $offset
188		359
189	Called whenever the view offset changes, i..e the user or program	360	Called whenever the view offset changes, i..e the user or program
190	scrolls. Offset C<0> means display the normal terminal, positive values	361	scrolls. Offset C<0> means display the normal terminal, positive values
…		…
197	than the scroll back buffer or the terminal.	368	than the scroll back buffer or the terminal.
198		369
199	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,	370	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
200	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total	371	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
201	number of lines that will be in the scrollback buffer.	372	number of lines that will be in the scrollback buffer.
202
203	=item on_tty_activity $term *NYI*
204
205	Called whenever the program(s) running in the urxvt window send output.
206		373
207	=item on_osc_seq $term, $string	374	=item on_osc_seq $term, $string
208		375
209	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =	376	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
210	operating system command) is processed. Cursor position and other state	377	operating system command) is processed. Cursor position and other state
…		…
223	can filter/change and output the text yourself by returning a true value	390	can filter/change and output the text yourself by returning a true value
224	and calling C<< $term->scr_add_lines >> yourself. Please note that this	391	and calling C<< $term->scr_add_lines >> yourself. Please note that this
225	might be very slow, however, as your hook is called for B<all> text being	392	might be very slow, however, as your hook is called for B<all> text being
226	output.	393	output.
227		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.
		413
228	=item on_refresh_begin $term	414	=item on_refresh_begin $term
229		415
230	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
231	or similar effects by modify terminal contents in refresh_begin, and	417	or similar effects by modify terminal contents in refresh_begin, and
232	restoring them in refresh_end. The built-in overlay and selection display	418	restoring them in refresh_end. The built-in overlay and selection display
…		…
240		426
241	Called whenever the user presses a key combination that has a	427	Called whenever the user presses a key combination that has a
242	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>
243	resource in the @@RXVT_NAME@@(1) manpage).	429	resource in the @@RXVT_NAME@@(1) manpage).
244		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
245	=back	475	=back
246		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
247	=head2 Variables in the C<urxvt> Package	498	=head2 Variables in the C<urxvt> Package
248		499
249	=over 4	500	=over 4
250		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
251	=item $urxvt::TERM	515	=item $urxvt::TERM
252		516
253	The current terminal. Whenever a callback/Hook is bein executed, this	517	The current terminal. This variable stores the current C<urxvt::term>
254	variable stores the current C<urxvt::term> object.	518	object, whenever a callback/hook is executing.
255		519
256	=back	520	=back
257		521
258	=head2 Functions in the C<urxvt> Package	522	=head2 Functions in the C<urxvt> Package
259		523
…		…
272	that calls this function.	536	that calls this function.
273		537
274	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
275	correct place, e.g. on stderr of the connecting urxvtc client.	539	correct place, e.g. on stderr of the connecting urxvtc client.
276		540
		541	Messages have a size limit of 1023 bytes currently.
		542
277	=item $time = urxvt::NOW	543	=item $time = urxvt::NOW
278		544
279	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.
280		570
281	=back	571	=back
282		572
283	=head2 RENDITION	573	=head2 RENDITION
284		574
…		…
311		601
312	=item $background = urxvt::GET_BASEBG $rend	602	=item $background = urxvt::GET_BASEBG $rend
313		603
314	Return the foreground/background colour index, respectively.	604	Return the foreground/background colour index, respectively.
315		605
316	=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)	606	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
317		607
318	=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)	608	=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
319		609
320	Replace the foreground/background colour in the rendition mask with the	610	Replace the foreground/background colour in the rendition mask with the
321	specified one.	611	specified one.
322		612
323	=item $value = urxvt::GET_CUSTOM ($rend)	613	=item $value = urxvt::GET_CUSTOM $rend
324		614
325	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
326	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
327	zero.	617	zero.
328		618
329	=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)	619	=item $rend = urxvt::SET_CUSTOM $rend, $new_value
330		620
331	Change the custom value.	621	Change the custom value.
332		622
333	=back	623	=back
334		624
335	=cut	625	=cut
336		626
337	package urxvt;
338
339	use strict;
340	use Scalar::Util ();
341
342	our $TERM;
343	our @HOOKNAME;
344	our $LIBDIR;
345
346	BEGIN {	627	BEGIN {
347	urxvt->bootstrap;
348
349	# overwrite perl's warn	628	# overwrite perl's warn
350	*CORE::GLOBAL::warn = sub {	629	*CORE::GLOBAL::warn = sub {
351	my $msg = join "", @_;	630	my $msg = join "", @_;
352	$msg .= "\n"	631	$msg .= "\n"
353	unless $msg =~ /\n$/;	632	unless $msg =~ /\n$/;
354	urxvt::warn ($msg);	633	urxvt::warn ($msg);
355	};	634	};
356	}
357		635
358	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
359	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};	643	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
360		644
361	sub verbose {	645	sub verbose {
362	my ($level, $msg) = @_;	646	my ($level, $msg) = @_;
363	warn "$msg\n" if $level <= $verbosity;	647	warn "$msg\n" if $level <= $verbosity;
364	}	648	}
365		649
366	# find on_xxx subs in the package and register them	650	my %extension_pkg;
367	# as hooks
368	sub register_package($) {
369	my ($pkg) = @_;
370
371	for my $htype (0.. $#HOOKNAME) {
372	my $name = $HOOKNAME[$htype];
373
374	my $ref = $pkg->can ("on_" . lc $name)
375	or next;
376
377	$TERM->{_hook}[$htype]{$pkg} = $ref;
378	$hook_count[$htype]++
379	or set_should_invoke $htype, 1;
380	}
381	}
382
383	my $script_pkg = "script0000";
384	my %script_pkg;
385		651
386	# load a single script into its own package, once only	652	# load a single script into its own package, once only
387	sub script_package($) {	653	sub extension_package($) {
388	my ($path) = @_;	654	my ($path) = @_;
389		655
		656	no strict 'refs';
		657
390	$script_pkg{$path} ||= do {	658	$extension_pkg{$path} ||= do {
391	my $pkg = "urxvt::" . ($script_pkg++);	659	$path =~ /([^\/\\]+)$/;
		660	my $pkg = $1;
		661	$pkg =~ s/[^[:word:]]/_/g;
		662	$pkg = "urxvt::ext::$pkg";
392		663
393	verbose 3, "loading script '$path' into package '$pkg'";	664	verbose 3, "loading extension '$path' into package '$pkg'";
394		665
395	open my $fh, "<:raw", $path	666	open my $fh, "<:raw", $path
396	or die "$path: $!";	667	or die "$path: $!";
397		668
		669	@{"$pkg\::ISA"} = urxvt::term::extension::;
		670
		671	my $source =
398	my $source = "package $pkg; use strict; use utf8;\n"	672	"package $pkg; use strict; use utf8;\n"
399	. "#line 1 \"$path\"\n{\n"	673	. "#line 1 \"$path\"\n{\n"
400	. (do { local $/; <$fh> })	674	. (do { local $/; <$fh> })
401	. "\n};\n1";	675	. "\n};\n1";
402		676
		677	eval $source
403	eval $source or die "$path: $@";	678	or die "$path: $@";
404		679
405	$pkg	680	$pkg
406	}	681	}
407	}	682	}
408		683
…		…
413	local $TERM = shift;	688	local $TERM = shift;
414	my $htype = shift;	689	my $htype = shift;
415		690
416	if ($htype == 0) { # INIT	691	if ($htype == 0) { # INIT
417	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");	692	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
		693
		694	my %ext_arg;
418		695
419	for my $ext (map { split /:/, $TERM->resource ("perl_ext_$_") } 1, 2) {	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) {
420	my @files = grep -f $_, map "$_/$ext", @dirs;	709	my @files = grep -f $_, map "$_/$ext", @dirs;
421		710
422	if (@files) {	711	if (@files) {
423	register_package script_package $files[0];	712	$TERM->register_package (extension_package $files[0], $argv);
424	} else {	713	} else {
425	warn "perl extension '$ext' not found in perl library search path\n";	714	warn "perl extension '$ext' not found in perl library search path\n";
426	}	715	}
427	}	716	}
		717
		718	eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval");
		719	warn $@ if $@;
428	}	720	}
429		721
430	$retval = undef;	722	$retval = undef;
431		723
432	if (my $cb = $TERM->{_hook}[$htype]) {	724	if (my $cb = $TERM->{_hook}[$htype]) {
…		…
434	if $verbosity >= 10;	726	if $verbosity >= 10;
435		727
436	keys %$cb;	728	keys %$cb;
437		729
438	while (my ($pkg, $cb) = each %$cb) {	730	while (my ($pkg, $cb) = each %$cb) {
439	$retval = $cb->(	731	$retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) }
440	$TERM->{_pkg}{$pkg} ||= do {
441	my $proxy = bless { }, urxvt::term::proxy::;
442	Scalar::Util::weaken ($proxy->{term} = $TERM);
443	$proxy
444	},
445	@_,
446	) and last;	732	and last;
447	}
448	}
449		733
450	if ($htype == 1) { # DESTROY	734	if ($@) {
451	# remove hooks if unused	735	$TERM->ungrab; # better to lose the grab than the session
452	if (my $hook = $TERM->{_hook}) {	736	warn $@;
453	for my $htype (0..$#$hook) {
454	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
455	or set_should_invoke $htype, 0;
456	}	737	}
457	}	738	}
458		739
		740	verbose 11, "$HOOKNAME[$htype] returning <$retval>"
		741	if $verbosity >= 11;
		742	}
		743
		744	if ($htype == 1) { # DESTROY
459	# clear package objects	745	# clear package objects
460	%$_ = () for values %{ $TERM->{_pkg} };	746	%$_ = () for values %{ $TERM->{_pkg} };
461		747
462	# clear package	748	# clear package
463	%$TERM = ();	749	%$TERM = ();
464	}	750	}
465		751
466	$retval	752	$retval
467	}	753	}
468		754
469	sub urxvt::term::proxy::AUTOLOAD {	755	sub exec_async(@) {
470	$urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/	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} = $cb;
		784	}
		785	}
		786
		787	sub disable {
		788	my ($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	$AUTOLOAD =~ /:([^:]+)$/
471	or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";	805	or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
472		806
473	eval qq{	807	eval qq{
474	sub $urxvt::term::proxy::AUTOLOAD {	808	sub $AUTOLOAD {
475	my \$proxy = shift;	809	my \$proxy = shift;
476	\$proxy->{term}->$1 (\@_)	810	\$proxy->{term}->$1 (\@_)
477	}	811	}
478	1	812	1
479	} or die "FATAL: unable to compile method forwarder: $@";	813	} or die "FATAL: unable to compile method forwarder: $@";
480		814
481	goto &$urxvt::term::proxy::AUTOLOAD;	815	goto &$AUTOLOAD;
482	}	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;
483		901
484	=head2 The C<urxvt::term> Class	902	=head2 The C<urxvt::term> Class
485		903
486	=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
487		968
488	=item $value = $term->resource ($name[, $newval])	969	=item $value = $term->resource ($name[, $newval])
489		970
490	Returns the current resource value associated with a given name and	971	Returns the current resource value associated with a given name and
491	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>
…		…
501		982
502	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
503	terminal is destroyed, so changing options frequently will eat memory.	984	terminal is destroyed, so changing options frequently will eat memory.
504		985
505	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
506	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>
507	list:	988	to see the actual list:
508		989
509	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont	990	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
510	borderLess color cursorBlink cursorUnderline cutchars delete_key	991	borderLess color cursorBlink cursorUnderline cutchars delete_key
511	display_name embed ext_bwidth fade font geometry hold iconName	992	display_name embed ext_bwidth fade font geometry hold iconName
512	imFont imLocale inputMethod insecure int_bwidth intensityStyles	993	imFont imLocale inputMethod insecure int_bwidth intensityStyles
513	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier	994	italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
514	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2	995	mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
515	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd	996	perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
516	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating	997	preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
517	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput	998	scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
518	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle	999	scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
519	shade term_name title transparent transparent_all tripleclickwords	1000	secondaryScreen secondaryScroll selectstyle shade term_name title
520	utmpInhibit visualBell	1001	transient_for transparent transparent_all tripleclickwords utmpInhibit
		1002	visualBell
521		1003
522	=cut	1004	=cut
523		1005
524	sub urxvt::term::resource($$;$) {	1006	sub resource($$;$) {
525	my ($self, $name) = (shift, shift);	1007	my ($self, $name) = (shift, shift);
526	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);	1008	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
527	goto &urxvt::term::_resource;	1009	&urxvt::term::_resource
528	}	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.
529		1027
530	=item $rend = $term->rstyle ([$new_rstyle])	1028	=item $rend = $term->rstyle ([$new_rstyle])
531		1029
532	Return and optionally change the current rendition. Text that is output by	1030	Return and optionally change the current rendition. Text that is output by
533	the terminal application will use this style.	1031	the terminal application will use this style.
…		…
544	=item ($row, $col) = $term->selection_end ([$row, $col])	1042	=item ($row, $col) = $term->selection_end ([$row, $col])
545		1043
546	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,
547	and optionally set them to new values.	1045	and optionally set them to new values.
548		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
549	=item $success = $term->selection_grab ($eventtime)	1054	=item $success = $term->selection_grab ($eventtime)
550		1055
551	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
552	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.
553		1059
554	=item $oldtext = $term->selection ([$newtext])	1060	=item $oldtext = $term->selection ([$newtext])
555		1061
556	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>.
557		1063
558	#=item $term->overlay ($x, $y, $text)	1064	=item $term->overlay_simple ($x, $y, $text)
559	#	1065
560	#Create a simple multi-line overlay box. See the next method for details.	1066	Create a simple multi-line overlay box. See the next method for details.
561	#	1067
562	#=cut	1068	=cut
563	#	1069
564	#sub urxvt::term::scr_overlay {	1070	sub overlay_simple {
565	# my ($self, $x, $y, $text) = @_;	1071	my ($self, $x, $y, $text) = @_;
566	#	1072
567	# my @lines = split /\n/, $text;	1073	my @lines = split /\n/, $text;
568	#	1074
569	# my $w = 0;	1075	my $w = List::Util::max map $self->strwidth ($_), @lines;
570	# for (map $self->strwidth ($_), @lines) {	1076
571	# $w = $_ if $w < $_;
572	# }
573	#
574	# $self->scr_overlay_new ($x, $y, $w, scalar @lines);	1077	my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
575	# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;	1078	$overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
576	#}	1079
		1080	$overlay
		1081	}
577		1082
578	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])	1083	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
579		1084
580	Create a new (empty) overlay at the given position with the given	1085	Create a new (empty) overlay at the given position with the given
581	width/height. C<$rstyle> defines the initial rendition style	1086	width/height. C<$rstyle> defines the initial rendition style
…		…
608		1113
609	If hidden, display the overlay again.	1114	If hidden, display the overlay again.
610		1115
611	=back	1116	=back
612		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
613	=item $cellwidth = $term->strwidth $string	1145	=item $cellwidth = $term->strwidth ($string)
614		1146
615	Returns the number of screen-cells this string would need. Correctly	1147	Returns the number of screen-cells this string would need. Correctly
616	accounts for wide and combining characters.	1148	accounts for wide and combining characters.
617		1149
618	=item $octets = $term->locale_encode $string	1150	=item $octets = $term->locale_encode ($string)
619		1151
620	Convert the given text string into the corresponding locale encoding.	1152	Convert the given text string into the corresponding locale encoding.
621		1153
622	=item $string = $term->locale_decode $octets	1154	=item $string = $term->locale_decode ($octets)
623		1155
624	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!
625		1174
626	=item $term->scr_add_lines ($string)	1175	=item $term->scr_add_lines ($string)
627		1176
628	Write the given text string to the screen, as if output by the application	1177	Write the given text string to the screen, as if output by the application
629	running inside the terminal. It may not contain command sequences (escape	1178	running inside the terminal. It may not contain command sequences (escape
…		…
632		1181
633	Normally its not a good idea to use this function, as programs might be	1182	Normally its not a good idea to use this function, as programs might be
634	confused by changes in cursor position or scrolling. Its useful inside a	1183	confused by changes in cursor position or scrolling. Its useful inside a
635	C<on_add_lines> hook, though.	1184	C<on_add_lines> hook, though.
636		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.
		1191
637	=item $term->tt_write ($octets)	1192	=item $term->tt_write ($octets)
638		1193
639	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
640	pass characters instead of octets, you should convert your strings first	1195	pass characters instead of octets, you should convert your strings first
641	to the locale-specific encoding using C<< $term->locale_encode >>.	1196	to the locale-specific encoding using C<< $term->locale_encode >>.
642		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
643	=item $window_width = $term->width	1220	=item $window_width = $term->width
644		1221
645	=item $window_height = $term->height	1222	=item $window_height = $term->height
646		1223
647	=item $font_width = $term->fwidth	1224	=item $font_width = $term->fwidth
…		…
660		1237
661	=item $max_scrollback = $term->saveLines	1238	=item $max_scrollback = $term->saveLines
662		1239
663	=item $nrow_plus_saveLines = $term->total_rows	1240	=item $nrow_plus_saveLines = $term->total_rows
664		1241
665	=item $lines_in_scrollback = $term->nsaved	1242	=item $topmost_scrollback_row = $term->top_row
666		1243
667	Return various integers describing terminal characteristics.	1244	Return various integers describing terminal characteristics.
668		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
		1254	=item $env = $term->env
		1255
		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.
		1277
669	=item $view_start = $term->view_start ([$newvalue])	1278	=item $view_start = $term->view_start ([$newvalue])
670		1279
671	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
672	C<0>, which displays the normal terminal contents. Larger values scroll	1281	C<0>, which displays the normal terminal contents. Lower values scroll
673	this many lines into the scrollback buffer.	1282	this many lines into the scrollback buffer.
674		1283
675	=item $term->want_refresh	1284	=item $term->want_refresh
676		1285
677	Requests a screen refresh. At the next opportunity, rxvt-unicode will	1286	Requests a screen refresh. At the next opportunity, rxvt-unicode will
…		…
735	about the logical line that row C<$row_number> is part of. It supports the	1344	about the logical line that row C<$row_number> is part of. It supports the
736	following methods:	1345	following methods:
737		1346
738	=over 4	1347	=over 4
739		1348
740	=item $text = $line->t	1349	=item $text = $line->t ([$new_text])
741		1350
742	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>
743		1352
744	=item $rend = $line->r	1353	=item $rend = $line->r ([$new_rend])
745		1354
746	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>
747		1356
748	=item $length = $line->l	1357	=item $length = $line->l
749		1358
750	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>.
751		1360
…		…
756	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.
757		1366
758	=item $offset = $line->offset_of ($row, $col)	1367	=item $offset = $line->offset_of ($row, $col)
759		1368
760	Returns the character offset of the given row|col pair within the logical	1369	Returns the character offset of the given row|col pair within the logical
761	line.	1370	line. Works for rows outside the line, too, and returns corresponding
		1371	offsets outside the string.
762		1372
763	=item ($row, $col) = $line->coord_of ($offset)	1373	=item ($row, $col) = $line->coord_of ($offset)
764		1374
765	Translates a string offset into terminal coordinates again.	1375	Translates a string offset into terminal coordinates again.
766		1376
767	=back	1377	=back
768		1378
769	=cut	1379	=cut
770		1380
771	sub urxvt::term::line {	1381	sub line {
772	my ($self, $row) = @_;	1382	my ($self, $row) = @_;
773		1383
774	my $maxrow = $self->nrow - 1;	1384	my $maxrow = $self->nrow - 1;
775		1385
776	my ($beg, $end) = ($row, $row);	1386	my ($beg, $end) = ($row, $row);
…		…
780		1390
781	bless {	1391	bless {
782	term => $self,	1392	term => $self,
783	beg => $beg,	1393	beg => $beg,
784	end => $end,	1394	end => $end,
		1395	ncol => $self->ncol,
785	len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),	1396	len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),
786	}, urxvt::line::	1397	}, urxvt::line::
787	}	1398	}
788		1399
789	sub urxvt::line::t {	1400	sub urxvt::line::t {
790	my ($self) = @_;	1401	my ($self) = @_;
791		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 &&
792	substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),	1410	substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),
793	0, $self->{len}	1411	0, $self->{len}
794	}	1412	}
795		1413
796	sub urxvt::line::r {	1414	sub urxvt::line::r {
797	my ($self) = @_;	1415	my ($self) = @_;
798		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) {
799	my $rend = [	1424	my $rend = [
800	map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}	1425	map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}
801	];	1426	];
802	$#$rend = $self->{len} - 1;	1427	$#$rend = $self->{len} - 1;
803	$rend	1428	return $rend;
		1429	}
		1430
		1431	()
804	}	1432	}
805		1433
806	sub urxvt::line::beg { $_[0]{beg} }	1434	sub urxvt::line::beg { $_[0]{beg} }
807	sub urxvt::line::end { $_[0]{end} }	1435	sub urxvt::line::end { $_[0]{end} }
808	sub urxvt::line::l { $_[0]{len} }	1436	sub urxvt::line::l { $_[0]{len} }
809		1437
810	sub urxvt::line::offset_of {	1438	sub urxvt::line::offset_of {
811	my ($self, $row, $col) = @_;	1439	my ($self, $row, $col) = @_;
812		1440
813	($row - $self->{beg}) * $self->{term}->ncol + $col	1441	($row - $self->{beg}) * $self->{ncol} + $col
814	}	1442	}
815		1443
816	sub urxvt::line::coord_of {	1444	sub urxvt::line::coord_of {
817	my ($self, $offset) = @_;	1445	my ($self, $offset) = @_;
818		1446
819	use integer;	1447	use integer;
820		1448
821	(	1449	(
822	$offset / $self->{term}->ncol + $self->{beg},	1450	$offset / $self->{ncol} + $self->{beg},
823	$offset % $self->{term}->ncol	1451	$offset % $self->{ncol}
824	)	1452	)
825	}	1453	}
826		1454
827	=item ($row, $col) = $line->coord_of ($offset)
828	=item $text = $term->special_encode $string	1455	=item $text = $term->special_encode $string
829		1456
830	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,
831	where one character corresponds to one screen cell. See	1458	where one character corresponds to one screen cell. See
832	C<< $term->ROW_t >> for details.	1459	C<< $term->ROW_t >> for details.
833		1460
834	=item $string = $term->special_decode $text	1461	=item $string = $term->special_decode $text
835		1462
836	Converts rxvt-unicodes text reprsentation into a perl string. See	1463	Converts rxvt-unicodes text reprsentation into a perl string. See
837	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	}
838		1619
839	=back	1620	=back
840		1621
841	=head2 The C<urxvt::timer> Class	1622	=head2 The C<urxvt::timer> Class
842		1623
…		…
883		1664
884	=item $timer = $timer->start ($tstamp)	1665	=item $timer = $timer->start ($tstamp)
885		1666
886	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.
887		1668
		1669	=item $timer = $timer->after ($delay)
		1670
		1671	Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
		1672
888	=item $timer = $timer->stop	1673	=item $timer = $timer->stop
889		1674
890	Stop the timer.	1675	Stop the timer.
891		1676
892	=back	1677	=back
…		…
897		1682
898	$term->{socket} = ...	1683	$term->{socket} = ...
899	$term->{iow} = urxvt::iow	1684	$term->{iow} = urxvt::iow
900	->new	1685	->new
901	->fd (fileno $term->{socket})	1686	->fd (fileno $term->{socket})
902	->events (1) # wait for read data	1687	->events (urxvt::EVENT_READ)
903	->start	1688	->start
904	->cb (sub {	1689	->cb (sub {
905	my ($iow, $revents) = @_;	1690	my ($iow, $revents) = @_;
906	# $revents must be 1 here, no need to check	1691	# $revents must be 1 here, no need to check
907	sysread $term->{socket}, my $buf, 8192	1692	sysread $term->{socket}, my $buf, 8192
…		…
924		1709
925	Set the filedescriptor (not handle) to watch.	1710	Set the filedescriptor (not handle) to watch.
926		1711
927	=item $iow = $iow->events ($eventmask)	1712	=item $iow = $iow->events ($eventmask)
928		1713
929	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
930	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>.
931		1717
932	=item $iow = $iow->start	1718	=item $iow = $iow->start
933		1719
934	Start watching for requested events on the given handle.	1720	Start watching for requested events on the given handle.
935		1721
…		…
946	This variable controls the verbosity level of the perl extension. Higher	1732	This variable controls the verbosity level of the perl extension. Higher
947	numbers indicate more verbose output.	1733	numbers indicate more verbose output.
948		1734
949	=over 4	1735	=over 4
950		1736
951	=item =0 - only fatal messages	1737	=item == 0 - fatal messages
952		1738
953	=item =3 - script loading and management	1739	=item >= 3 - script loading and management
954		1740
955	=item =10 - all events received	1741	=item >=10 - all called hooks
		1742
		1743	=item >=11 - hook reutrn values
956		1744
957	=back	1745	=back
958		1746
959	=head1 AUTHOR	1747	=head1 AUTHOR
960		1748

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