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Revision 1.33 by root, Thu Jan 5 01:04:10 2006 UTC vs.
Revision 1.112 by root, Thu Jan 19 21:02:06 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	Or by adding them to the resource for extensions loaded by default:
		41
		42	URxvt.perl-ext-common: default,automove-background,selection-autotransform
		43
40	=over 4	44	=over 4
41		45
42	=item selection	46	=item selection (enabled by default)
43		47
44	Intelligent selection. This extension tries to be more intelligent when	48	(More) intelligent selection. This extension tries to be more intelligent
45	the user extends selections (double-click). Right now, it tries to select	49	when the user extends selections (double-click and further clicks). Right
46	urls and complete shell-quoted arguments, which is very convenient, too,	50	now, it tries to select words, urls and complete shell-quoted
47	if your F<ls> supports C<--quoting-style=shell>.	51	arguments, which is very convenient, too, if your F<ls> supports
		52	C<--quoting-style=shell>.
48		53
49	It also offers the following bindable event:	54	A double-click usually selects the word under the cursor, further clicks
		55	will enlarge the selection.
		56
		57	The selection works by trying to match a number of regexes and displaying
		58	them in increasing order of length. You can add your own regexes by
		59	specifying resources of the form:
		60
		61	URxvt.selection.pattern-0: perl-regex
		62	URxvt.selection.pattern-1: perl-regex
		63	...
		64
		65	The index number (0, 1...) must not have any holes, and each regex must
		66	contain at least one pair of capturing parentheses, which will be used for
		67	the match. For example, the followign adds a regex that matches everything
		68	between two vertical bars:
		69
		70	URxvt.selection.pattern-0: \\|([^|]+)\\|
		71
		72	You can look at the source of the selection extension to see more
		73	interesting uses, such as parsing a line from beginning to end.
		74
		75	This extension also offers following bindable keyboard commands:
50		76
51	=over 4	77	=over 4
52		78
53	=item rot13	79	=item rot13
54		80
55	Rot-13 the selection when activated. Used via keyboard trigger:	81	Rot-13 the selection when activated. Used via keyboard trigger:
56		82
57	URxvt.keysym.C-M-r: perl:selection:rot13	83	URxvt.keysym.C-M-r: perl:selection:rot13
58		84
59	=back	85	=back
		86
		87	=item option-popup (enabled by default)
		88
		89	Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at
		90	runtime.
		91
		92	=item selection-popup (enabled by default)
		93
		94	Binds a popup menu to Ctrl-Button3 that lets you convert the selection
		95	text into various other formats/action (such as uri unescaping, perl
		96	evalution, web-browser starting etc.), depending on content.
		97
		98	Other extensions can extend this popup menu by pushing a code reference
		99	onto C<@{ $term->{selection_popup_hook} }>, that is called whenever the
		100	popup is displayed.
		101
		102	It's sole argument is the popup menu, which can be modified. The selection
		103	is in C<$_>, which can be used to decide wether to add something or not.
		104	It should either return nothing or a string and a code reference. The
		105	string will be used as button text and the code reference will be called
		106	when the button gets activated and should transform C<$_>.
		107
		108	The following will add an entry C<a to b> that transforms all C<a>s in
		109	the selection to C<b>s, but only if the selection currently contains any
		110	C<a>s:
		111
		112	push @{ $self->{term}{selection_popup_hook} }, sub {
		113	/a/ ? ("a to be" => sub { s/a/b/g }
		114	: ()
		115	};
		116
		117	=item searchable-scrollback<hotkey> (enabled by default)
		118
		119	Adds regex search functionality to the scrollback buffer, triggered
		120	by a hotkey (default: C<M-s>). While in search mode, normal terminal
		121	input/output is suspended and a regex is displayed at the bottom of the
		122	screen.
		123
		124	Inputting characters appends them to the regex and continues incremental
		125	search. C<BackSpace> removes a character from the regex, C<Up> and C<Down>
		126	search upwards/downwards in the scrollback buffer, C<End> jumps to the
		127	bottom. C<Escape> leaves search mode and returns to the point where search
		128	was started, while C<Enter> or C<Return> stay at the current position and
		129	additionally stores the first match in the current line into the primary
		130	selection.
		131
		132	=item selection-autotransform
		133
		134	This selection allows you to do automatic transforms on a selection
		135	whenever a selection is made.
		136
		137	It works by specifying perl snippets (most useful is a single C<s///>
		138	operator) that modify C<$_> as resources:
		139
		140	URxvt.selection-autotransform.0: transform
		141	URxvt.selection-autotransform.1: transform
		142	...
		143
		144	For example, the following will transform selections of the form
		145	C<filename:number>, often seen in compiler messages, into C<vi +$filename
		146	$word>:
		147
		148	URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
		149
		150	And this example matches the same,but replaces it with vi-commands you can
		151	paste directly into your (vi :) editor:
		152
		153	URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
		154
		155	Of course, this can be modified to suit your needs and your editor :)
		156
		157	To expand the example above to typical perl error messages ("XXX at
		158	FILENAME line YYY."), you need a slightly more elaborate solution:
		159
		160	URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
		161	URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
		162
		163	The first line tells the selection code to treat the unchanging part of
		164	every error message as a selection pattern, and the second line transforms
		165	the message into vi commands to load the file.
		166
		167	=item mark-urls
		168
		169	Uses per-line display filtering (C<on_line_update>) to underline urls and
		170	make them clickable. When middle-clicked, the program specified in the
		171	resource C<urlLauncher> (default C<x-www-browser>) will be started with
		172	the URL as first argument.
		173
		174	=item automove-background
		175
		176	This is basically a one-line extension that dynamically changes the background pixmap offset
		177	to the window position, in effect creating the same effect as pseudo transparency with
		178	a custom pixmap. No scaling is supported in this mode. Exmaple:
		179
		180	@@RXVT_NAME@@ -pixmap background.xpm -pe automove-background
		181
		182	=item block-graphics-to-ascii
		183
		184	A not very useful example of filtering all text output to the terminal,
		185	by replacing all line-drawing characters (U+2500 .. U+259F) by a
		186	similar-looking ascii character.
60		187
61	=item digital-clock	188	=item digital-clock
62		189
63	Displays a digital clock using the built-in overlay.	190	Displays a digital clock using the built-in overlay.
64		191
…		…
66		193
67	Displays a very simple digital clock in the upper right corner of the	194	Displays a very simple digital clock in the upper right corner of the
68	window. Illustrates overwriting the refresh callbacks to create your own	195	window. Illustrates overwriting the refresh callbacks to create your own
69	overlays or changes.	196	overlays or changes.
70		197
71	=item mark-urls	198	=item selection-pastebin
72		199
73	A not very useful example of filtering all text output to the terminal, by	200	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	201	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.	202	not currently secure for use in a multiuser environment as it writes to
76	when typing them) do not get marked.	203	F</tmp> directly.).
		204
		205	It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
		206	i.e.
		207
		208	URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
		209
		210	Pressing this combination runs a command with C<%> replaced by the name of
		211	the textfile. This command can be set via a resource:
		212
		213	URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
		214
		215	And the default is likely not useful to anybody but the few people around
		216	here :)
		217
		218	The name of the textfile is the hex encoded md5 sum of the selection, so
		219	the same content should lead to the same filename.
		220
		221	After a successful upload the selection will be replaced by the text given
		222	in the C<selection-pastebin-url> resource (again, the % is the placeholder
		223	for the filename):
		224
		225	URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
77		226
78	=back	227	=back
		228
		229	=head1 API DOCUMENTATION
79		230
80	=head2 General API Considerations	231	=head2 General API Considerations
81		232
82	All objects (such as terminals, time watchers etc.) are typical	233	All objects (such as terminals, time watchers etc.) are typical
83	reference-to-hash objects. The hash can be used to store anything you	234	reference-to-hash objects. The hash can be used to store anything you
…		…
96	=over 4	247	=over 4
97		248
98	=item $text	249	=item $text
99		250
100	Rxvt-unicodes special way of encoding text, where one "unicode" character	251	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.	252	always represents one screen cell. See L<ROW_t> for a discussion of this format.
102		253
103	=item $string	254	=item $string
104		255
105	A perl text string, with an emphasis on I<text>. It can store all unicode	256	A perl text string, with an emphasis on I<text>. It can store all unicode
106	characters and is to be distinguished with text encoded in a specific	257	characters and is to be distinguished with text encoded in a specific
…		…
111	Either binary data or - more common - a text string encoded in a	262	Either binary data or - more common - a text string encoded in a
112	locale-specific way.	263	locale-specific way.
113		264
114	=back	265	=back
115		266
		267	=head2 Extension Objects
		268
		269	Very perl extension is a perl class. A separate perl object is created
		270	for each terminal and each extension and passed as the first parameter to
		271	hooks. So extensions can use their C<$self> object without having to think
		272	about other extensions, with the exception of methods and members that
		273	begin with an underscore character C<_>: these are reserved for internal
		274	use.
		275
		276	Although it isn't a C<urxvt::term> object, you can call all methods of the
		277	C<urxvt::term> class on this object.
		278
		279	It has the following methods and data members:
		280
		281	=over 4
		282
		283	=item $urxvt_term = $self->{term}
		284
		285	Returns the C<urxvt::term> object associated with this instance of the
		286	extension. This member I<must not> be changed in any way.
		287
		288	=item $self->enable ($hook_name => $cb, [$hook_name => $cb..])
		289
		290	Dynamically enable the given hooks (named without the C<on_> prefix) for
		291	this extension, replacing any previous hook. This is useful when you want
		292	to overwrite time-critical hooks only temporarily.
		293
		294	=item $self->disable ($hook_name[, $hook_name..])
		295
		296	Dynamically disable the given hooks.
		297
		298	=back
		299
116	=head2 Hooks	300	=head2 Hooks
117		301
118	The following subroutines can be declared in loaded scripts, and will be	302	The following subroutines can be declared in extension files, and will be
119	called whenever the relevant event happens.	303	called whenever the relevant event happens.
120		304
121	The first argument passed to them is an object private to each terminal	305	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	306	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		307
127	All of them must return a boolean value. If it is true, then the event	308	B<All> of these hooks must return a boolean value. If any of the called
128	counts as being I<consumed>, and the invocation of other hooks is skipped,	309	hooks returns true, then the event counts as being I<consumed>, and the
129	and the relevant action might not be carried out by the C++ code.	310	relevant action might not be carried out by the C++ code.
130		311
131	When in doubt, return a false value (preferably C<()>).	312	I<< When in doubt, return a false value (preferably C<()>). >>
132		313
133	=over 4	314	=over 4
134		315
135	=item on_init $term	316	=item on_init $term
136		317
137	Called after a new terminal object has been initialized, but before	318	Called after a new terminal object has been initialized, but before
138	windows are created or the command gets run.	319	windows are created or the command gets run. Most methods are unsafe to
		320	call or deliver senseless data, as terminal size and other characteristics
		321	have not yet been determined. You can safely query and change resources
		322	and options, though. For many purposes the C<on_start> hook is a better
		323	place.
		324
		325	=item on_start $term
		326
		327	Called at the very end of initialisation of a new terminal, just before
		328	returning to the mainloop.
139		329
140	=item on_reset $term	330	=item on_reset $term
141		331
142	Called after the screen is "reset" for any reason, such as resizing or	332	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	333	control sequences. Here is where you can react on changes to size-related
144	variables.	334	variables.
145		335
146	=item on_start $term	336	=item on_child_start $term, $pid
147		337
148	Called at the very end of initialisation of a new terminal, just before	338	Called just after the child process has been C<fork>ed.
149	returning to the mainloop.	339
		340	=item on_child_exit $term, $status
		341
		342	Called just after the child process has exited. C<$status> is the status
		343	from C<waitpid>.
150		344
151	=item on_sel_make $term, $eventtime	345	=item on_sel_make $term, $eventtime
152		346
153	Called whenever a selection has been made by the user, but before the	347	Called whenever a selection has been made by the user, but before the
154	selection text is copied, so changes to the beginning, end or type of the	348	selection text is copied, so changes to the beginning, end or type of the
…		…
168	=item on_sel_extend $term	362	=item on_sel_extend $term
169		363
170	Called whenever the user tries to extend the selection (e.g. with a double	364	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	365	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	366	should extend the selection itelf and return true to suppress the built-in
173	processing.	367	processing. This can happen multiple times, as long as the callback
		368	returns true, it will be called on every further click by the user and is
		369	supposed to enlarge the selection more and more, if possible.
174		370
175	See the F<selection> example extension.	371	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		372
187	=item on_view_change $term, $offset	373	=item on_view_change $term, $offset
188		374
189	Called whenever the view offset changes, i..e the user or program	375	Called whenever the view offset changes, i..e the user or program
190	scrolls. Offset C<0> means display the normal terminal, positive values	376	scrolls. Offset C<0> means display the normal terminal, positive values
…		…
197	than the scroll back buffer or the terminal.	383	than the scroll back buffer or the terminal.
198		384
199	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,	385	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	386	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
201	number of lines that will be in the scrollback buffer.	387	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		388
207	=item on_osc_seq $term, $string	389	=item on_osc_seq $term, $string
208		390
209	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =	391	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
210	operating system command) is processed. Cursor position and other state	392	operating system command) is processed. Cursor position and other state
…		…
223	can filter/change and output the text yourself by returning a true value	405	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	406	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	407	might be very slow, however, as your hook is called for B<all> text being
226	output.	408	output.
227		409
		410	=item on_tt_write $term, $octets
		411
		412	Called whenever some data is written to the tty/pty and can be used to
		413	suppress or filter tty input.
		414
		415	=item on_line_update $term, $row
		416
		417	Called whenever a line was updated or changed. Can be used to filter
		418	screen output (e.g. underline urls or other useless stuff). Only lines
		419	that are being shown will be filtered, and, due to performance reasons,
		420	not always immediately.
		421
		422	The row number is always the topmost row of the line if the line spans
		423	multiple rows.
		424
		425	Please note that, if you change the line, then the hook might get called
		426	later with the already-modified line (e.g. if unrelated parts change), so
		427	you cannot just toggle rendition bits, but only set them.
		428
228	=item on_refresh_begin $term	429	=item on_refresh_begin $term
229		430
230	Called just before the screen gets redrawn. Can be used for overlay	431	Called just before the screen gets redrawn. Can be used for overlay
231	or similar effects by modify terminal contents in refresh_begin, and	432	or similar effects by modify terminal contents in refresh_begin, and
232	restoring them in refresh_end. The built-in overlay and selection display	433	restoring them in refresh_end. The built-in overlay and selection display
…		…
240		441
241	Called whenever the user presses a key combination that has a	442	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>	443	C<perl:string> action bound to it (see description of the B<keysym>
243	resource in the @@RXVT_NAME@@(1) manpage).	444	resource in the @@RXVT_NAME@@(1) manpage).
244		445
		446	=item on_x_event $term, $event
		447
		448	Called on every X event received on the vt window (and possibly other
		449	windows). Should only be used as a last resort. Most event structure
		450	members are not passed.
		451
		452	=item on_focus_in $term
		453
		454	Called whenever the window gets the keyboard focus, before rxvt-unicode
		455	does focus in processing.
		456
		457	=item on_focus_out $term
		458
		459	Called wheneever the window loses keyboard focus, before rxvt-unicode does
		460	focus out processing.
		461
		462	=item on_configure_notify $term, $event
		463
		464	=item on_key_press $term, $event, $keysym, $octets
		465
		466	=item on_key_release $term, $event, $keysym
		467
		468	=item on_button_press $term, $event
		469
		470	=item on_button_release $term, $event
		471
		472	=item on_motion_notify $term, $event
		473
		474	=item on_map_notify $term, $event
		475
		476	=item on_unmap_notify $term, $event
		477
		478	Called whenever the corresponding X event is received for the terminal If
		479	the hook returns true, then the even will be ignored by rxvt-unicode.
		480
		481	The event is a hash with most values as named by Xlib (see the XEvent
		482	manpage), with the additional members C<row> and C<col>, which are the row
		483	and column under the mouse cursor.
		484
		485	C<on_key_press> additionally receives the string rxvt-unicode would
		486	output, if any, in locale-specific encoding.
		487
		488	subwindow.
		489
245	=back	490	=back
246		491
		492	=cut
		493
		494	package urxvt;
		495
		496	use utf8;
		497	use strict;
		498	use Carp ();
		499	use Scalar::Util ();
		500	use List::Util ();
		501
		502	our $VERSION = 1;
		503	our $TERM;
		504	our @HOOKNAME;
		505	our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
		506	our %OPTION;
		507
		508	our $LIBDIR;
		509	our $RESNAME;
		510	our $RESCLASS;
		511	our $RXVTNAME;
		512
247	=head2 Variables in the C<urxvt> Package	513	=head2 Variables in the C<urxvt> Package
248		514
249	=over 4	515	=over 4
250		516
		517	=item $urxvt::LIBDIR
		518
		519	The rxvt-unicode library directory, where, among other things, the perl
		520	modules and scripts are stored.
		521
		522	=item $urxvt::RESCLASS, $urxvt::RESCLASS
		523
		524	The resource class and name rxvt-unicode uses to look up X resources.
		525
		526	=item $urxvt::RXVTNAME
		527
		528	The basename of the installed binaries, usually C<urxvt>.
		529
251	=item $urxvt::TERM	530	=item $urxvt::TERM
252		531
253	The current terminal. Whenever a callback/Hook is bein executed, this	532	The current terminal. This variable stores the current C<urxvt::term>
254	variable stores the current C<urxvt::term> object.	533	object, whenever a callback/hook is executing.
255		534
256	=back	535	=back
257		536
258	=head2 Functions in the C<urxvt> Package	537	=head2 Functions in the C<urxvt> Package
259		538
…		…
272	that calls this function.	551	that calls this function.
273		552
274	Using this function has the advantage that its output ends up in the	553	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.	554	correct place, e.g. on stderr of the connecting urxvtc client.
276		555
		556	Messages have a size limit of 1023 bytes currently.
		557
277	=item $time = urxvt::NOW	558	=item $time = urxvt::NOW
278		559
279	Returns the "current time" (as per the event loop).	560	Returns the "current time" (as per the event loop).
		561
		562	=item urxvt::CurrentTime
		563
		564	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
		565	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
		566	Button4Mask, Button5Mask, AnyModifier
		567
		568	=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
		569	ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
		570	PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
		571	Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
		572	KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
		573	ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
		574	FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
		575
		576	=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
		577	EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
		578	GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
		579	UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
		580	ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
		581	CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
		582	SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
		583
		584	Various constants for use in X calls and event processing.
280		585
281	=back	586	=back
282		587
283	=head2 RENDITION	588	=head2 RENDITION
284		589
…		…
311		616
312	=item $background = urxvt::GET_BASEBG $rend	617	=item $background = urxvt::GET_BASEBG $rend
313		618
314	Return the foreground/background colour index, respectively.	619	Return the foreground/background colour index, respectively.
315		620
316	=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)	621	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
317		622
318	=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)	623	=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
319		624
320	Replace the foreground/background colour in the rendition mask with the	625	Replace the foreground/background colour in the rendition mask with the
321	specified one.	626	specified one.
322		627
323	=item $value = urxvt::GET_CUSTOM ($rend)	628	=item $value = urxvt::GET_CUSTOM $rend
324		629
325	Return the "custom" value: Every rendition has 5 bits for use by	630	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	631	extensions. They can be set and changed as you like and are initially
327	zero.	632	zero.
328		633
329	=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)	634	=item $rend = urxvt::SET_CUSTOM $rend, $new_value
330		635
331	Change the custom value.	636	Change the custom value.
332		637
333	=back	638	=back
334		639
335	=cut	640	=cut
336		641
337	package urxvt;
338
339	use strict;
340	use Scalar::Util ();
341
342	our $TERM;
343	our @HOOKNAME;
344	our $LIBDIR;
345
346	BEGIN {	642	BEGIN {
347	urxvt->bootstrap;
348
349	# overwrite perl's warn	643	# overwrite perl's warn
350	*CORE::GLOBAL::warn = sub {	644	*CORE::GLOBAL::warn = sub {
351	my $msg = join "", @_;	645	my $msg = join "", @_;
352	$msg .= "\n"	646	$msg .= "\n"
353	unless $msg =~ /\n$/;	647	unless $msg =~ /\n$/;
354	urxvt::warn ($msg);	648	urxvt::warn ($msg);
355	};	649	};
356	}	650	}
357		651
358	my @hook_count;
359	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};	652	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
360		653
361	sub verbose {	654	sub verbose {
362	my ($level, $msg) = @_;	655	my ($level, $msg) = @_;
363	warn "$msg\n" if $level <= $verbosity;	656	warn "$msg\n" if $level <= $verbosity;
364	}	657	}
365		658
366	# find on_xxx subs in the package and register them	659	my %extension_pkg;
367	# as hooks
368	sub register_package($) {
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 $script_pkg = "script0000";
384	my %script_pkg;
385		660
386	# load a single script into its own package, once only	661	# load a single script into its own package, once only
387	sub script_package($) {	662	sub extension_package($) {
388	my ($path) = @_;	663	my ($path) = @_;
389		664
		665	no strict 'refs';
		666
390	$script_pkg{$path} ||= do {	667	$extension_pkg{$path} ||= do {
391	my $pkg = "urxvt::" . ($script_pkg++);	668	$path =~ /([^\/\\]+)$/;
		669	my $pkg = $1;
		670	$pkg =~ s/[^[:word:]]/_/g;
		671	$pkg = "urxvt::ext::$pkg";
392		672
393	verbose 3, "loading script '$path' into package '$pkg'";	673	verbose 3, "loading extension '$path' into package '$pkg'";
394		674
395	open my $fh, "<:raw", $path	675	open my $fh, "<:raw", $path
396	or die "$path: $!";	676	or die "$path: $!";
397		677
		678	@{"$pkg\::ISA"} = urxvt::term::extension::;
		679
		680	my $source =
398	my $source = "package $pkg; use strict; use utf8;\n"	681	"package $pkg; use strict; use utf8;\n"
399	. "#line 1 \"$path\"\n{\n"	682	. "#line 1 \"$path\"\n{\n"
400	. (do { local $/; <$fh> })	683	. (do { local $/; <$fh> })
401	. "\n};\n1";	684	. "\n};\n1";
402		685
		686	eval $source
403	eval $source or die "$path: $@";	687	or die "$path: $@";
404		688
405	$pkg	689	$pkg
406	}	690	}
407	}	691	}
408		692
…		…
413	local $TERM = shift;	697	local $TERM = shift;
414	my $htype = shift;	698	my $htype = shift;
415		699
416	if ($htype == 0) { # INIT	700	if ($htype == 0) { # INIT
417	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");	701	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
		702
		703	my %ext_arg;
418		704
419	for my $ext (map { split /:/, $TERM->resource ("perl_ext_$_") } 1, 2) {	705	for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
		706	if ($_ eq "default") {
		707	$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback);
		708	} elsif (/^-(.*)$/) {
		709	delete $ext_arg{$1};
		710	} elsif (/^([^<]+)<(.*)>$/) {
		711	push @{ $ext_arg{$1} }, $2;
		712	} else {
		713	$ext_arg{$_} ||= [];
		714	}
		715	}
		716
		717	while (my ($ext, $argv) = each %ext_arg) {
420	my @files = grep -f $_, map "$_/$ext", @dirs;	718	my @files = grep -f $_, map "$_/$ext", @dirs;
421		719
422	if (@files) {	720	if (@files) {
423	register_package script_package $files[0];	721	$TERM->register_package (extension_package $files[0], $argv);
424	} else {	722	} else {
425	warn "perl extension '$ext' not found in perl library search path\n";	723	warn "perl extension '$ext' not found in perl library search path\n";
426	}	724	}
427	}	725	}
		726
		727	eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval");
		728	warn $@ if $@;
428	}	729	}
429		730
430	$retval = undef;	731	$retval = undef;
431		732
432	if (my $cb = $TERM->{_hook}[$htype]) {	733	if (my $cb = $TERM->{_hook}[$htype]) {
…		…
434	if $verbosity >= 10;	735	if $verbosity >= 10;
435		736
436	keys %$cb;	737	keys %$cb;
437		738
438	while (my ($pkg, $cb) = each %$cb) {	739	while (my ($pkg, $cb) = each %$cb) {
439	$retval = $cb->(	740	$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	$proxy
444	},
445	@_,
446	) and last;
447	}
448	}
449		741
450	if ($htype == 1) { # DESTROY	742	if ($@) {
451	# remove hooks if unused	743	$TERM->ungrab; # better to lose the grab than the session
452	if (my $hook = $TERM->{_hook}) {	744	warn $@;
453	for my $htype (0..$#$hook) {
454	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
455	or set_should_invoke $htype, 0;
456	}	745	}
457	}	746	}
458		747
		748	verbose 11, "$HOOKNAME[$htype] returning <$retval>"
		749	if $verbosity >= 11;
		750	}
		751
		752	if ($htype == 1) { # DESTROY
459	# clear package objects	753	# clear package objects
460	%$_ = () for values %{ $TERM->{_pkg} };	754	%$_ = () for values %{ $TERM->{_pkg} };
461		755
462	# clear package	756	# clear package
463	%$TERM = ();	757	%$TERM = ();
464	}	758	}
465		759
466	$retval	760	$retval
467	}	761	}
468		762
469	sub urxvt::term::proxy::AUTOLOAD {	763	# urxvt::term::extension
470	$urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/	764
		765	package urxvt::term::extension;
		766
		767	sub enable {
		768	my ($self, %hook) = @_;
		769	my $pkg = $self->{_pkg};
		770
		771	while (my ($name, $cb) = each %hook) {
		772	my $htype = $HOOKTYPE{uc $name};
		773	defined $htype
		774	or Carp::croak "unsupported hook type '$name'";
		775
		776	$self->set_should_invoke ($htype, +1)
		777	unless exists $self->{term}{_hook}[$htype]{$pkg};
		778
		779	$self->{term}{_hook}[$htype]{$pkg} = $cb;
		780	}
		781	}
		782
		783	sub disable {
		784	my ($self, @hook) = @_;
		785	my $pkg = $self->{_pkg};
		786
		787	for my $name (@hook) {
		788	my $htype = $HOOKTYPE{uc $name};
		789	defined $htype
		790	or Carp::croak "unsupported hook type '$name'";
		791
		792	$self->set_should_invoke ($htype, -1)
		793	if delete $self->{term}{_hook}[$htype]{$pkg};
		794	}
		795	}
		796
		797	our $AUTOLOAD;
		798
		799	sub AUTOLOAD {
		800	$AUTOLOAD =~ /:([^:]+)$/
471	or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";	801	or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
472		802
473	eval qq{	803	eval qq{
474	sub $urxvt::term::proxy::AUTOLOAD {	804	sub $AUTOLOAD {
475	my \$proxy = shift;	805	my \$proxy = shift;
476	\$proxy->{term}->$1 (\@_)	806	\$proxy->{term}->$1 (\@_)
477	}	807	}
478	1	808	1
479	} or die "FATAL: unable to compile method forwarder: $@";	809	} or die "FATAL: unable to compile method forwarder: $@";
480		810
481	goto &$urxvt::term::proxy::AUTOLOAD;	811	goto &$AUTOLOAD;
482	}	812	}
		813
		814	sub DESTROY {
		815	# nop
		816	}
		817
		818	# urxvt::destroy_hook
		819
		820	sub urxvt::destroy_hook::DESTROY {
		821	${$_[0]}->();
		822	}
		823
		824	sub urxvt::destroy_hook(&) {
		825	bless \shift, urxvt::destroy_hook::
		826	}
		827
		828	package urxvt::anyevent;
		829
		830	=head2 The C<urxvt::anyevent> Class
		831
		832	The sole purpose of this class is to deliver an interface to the
		833	C<AnyEvent> module - any module using it will work inside urxvt without
		834	further programming. The only exception is that you cannot wait on
		835	condition variables, but non-blocking condvar use is ok. What this means
		836	is that you cannot use blocking APIs, but the non-blocking variant should
		837	work.
		838
		839	=cut
		840
		841	our $VERSION = 1;
		842
		843	$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
		844	push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
		845
		846	sub timer {
		847	my ($class, %arg) = @_;
		848
		849	my $cb = $arg{cb};
		850
		851	urxvt::timer
		852	->new
		853	->start (urxvt::NOW + $arg{after})
		854	->cb (sub {
		855	$_[0]->stop; # need to cancel manually
		856	$cb->();
		857	})
		858	}
		859
		860	sub io {
		861	my ($class, %arg) = @_;
		862
		863	my $cb = $arg{cb};
		864
		865	bless [$arg{fh}, urxvt::iow
		866	->new
		867	->fd (fileno $arg{fh})
		868	->events (($arg{poll} =~ /r/ ? 1 : 0)
		869	| ($arg{poll} =~ /w/ ? 2 : 0))
		870	->start
		871	->cb (sub {
		872	$cb->(($_[1] & 1 ? 'r' : '')
		873	. ($_[1] & 2 ? 'w' : ''));
		874	})],
		875	urxvt::anyevent::
		876	}
		877
		878	sub DESTROY {
		879	$_[0][1]->stop;
		880	}
		881
		882	sub condvar {
		883	bless \my $flag, urxvt::anyevent::condvar::
		884	}
		885
		886	sub urxvt::anyevent::condvar::broadcast {
		887	${$_[0]}++;
		888	}
		889
		890	sub urxvt::anyevent::condvar::wait {
		891	unless (${$_[0]}) {
		892	Carp::croak "AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API";
		893	}
		894	}
		895
		896	package urxvt::term;
483		897
484	=head2 The C<urxvt::term> Class	898	=head2 The C<urxvt::term> Class
485		899
486	=over 4	900	=over 4
		901
		902	=cut
		903
		904	# find on_xxx subs in the package and register them
		905	# as hooks
		906	sub register_package {
		907	my ($self, $pkg, $argv) = @_;
		908
		909	my $proxy = bless {
		910	_pkg => $pkg,
		911	argv => $argv,
		912	}, $pkg;
		913	Scalar::Util::weaken ($proxy->{term} = $self);
		914
		915	$self->{_pkg}{$pkg} = $proxy;
		916
		917	for my $name (@HOOKNAME) {
		918	if (my $ref = $pkg->can ("on_" . lc $name)) {
		919	$proxy->enable ($name => $ref);
		920	}
		921	}
		922	}
		923
		924	=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
		925
		926	Creates a new terminal, very similar as if you had started it with system
		927	C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
		928	hash which defines the environment of the new terminal.
		929
		930	Croaks (and probably outputs an error message) if the new instance
		931	couldn't be created. Returns C<undef> if the new instance didn't
		932	initialise perl, and the terminal object otherwise. The C<init> and
		933	C<start> hooks will be called during this call.
		934
		935	=cut
		936
		937	sub new {
		938	my ($class, $env, @args) = @_;
		939
		940	_new ([ map "$_=$env->{$_}", keys %$env ], @args);
		941	}
		942
		943	=item $term->destroy
		944
		945	Destroy the terminal object (close the window, free resources
		946	etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
		947	watchers (timers, io watchers) are still active.
		948
		949	=item $term->exec_async ($cmd[, @args])
		950
		951	Works like the combination of the C<fork>/C<exec> builtins, which executes
		952	("starts") programs in the background. This function takes care of setting
		953	the user environment before exec'ing the command (e.g. C<PATH>) and should
		954	be preferred over explicit calls to C<exec> or C<system>.
		955
		956	Returns the pid of the subprocess or C<undef> on error.
		957
		958	=cut
		959
		960	sub exec_async {
		961	my $self = shift;
		962
		963	my $pid = fork;
		964
		965	return $pid
		966	if !defined $pid or $pid;
		967
		968	%ENV = %{ $self->env };
		969
		970	exec @_;
		971	urxvt::_exit 255;
		972	}
		973
		974	=item $isset = $term->option ($optval[, $set])
		975
		976	Returns true if the option specified by C<$optval> is enabled, and
		977	optionally change it. All option values are stored by name in the hash
		978	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
		979
		980	Here is a a likely non-exhaustive list of option names, please see the
		981	source file F</src/optinc.h> to see the actual list:
		982
		983	borderLess console cursorBlink cursorUnderline hold iconic insecure
		984	intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
		985	override-redirect pastableTabs pointerBlank reverseVideo scrollBar
		986	scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
		987	scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
		988	transparent tripleclickwords utmpInhibit visualBell
487		989
488	=item $value = $term->resource ($name[, $newval])	990	=item $value = $term->resource ($name[, $newval])
489		991
490	Returns the current resource value associated with a given name and	992	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>	993	optionally sets a new value. Setting values is most useful in the C<init>
…		…
501		1003
502	Please note that resource strings will currently only be freed when the	1004	Please note that resource strings will currently only be freed when the
503	terminal is destroyed, so changing options frequently will eat memory.	1005	terminal is destroyed, so changing options frequently will eat memory.
504		1006
505	Here is a a likely non-exhaustive list of resource names, not all of which	1007	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	1008	are supported in every build, please see the source file F</src/rsinc.h>
507	list:	1009	to see the actual list:
508		1010
509	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont	1011	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
510	borderLess color cursorBlink cursorUnderline cutchars delete_key	1012	borderLess color cursorBlink cursorUnderline cutchars delete_key
511	display_name embed ext_bwidth fade font geometry hold iconName	1013	display_name embed ext_bwidth fade font geometry hold iconName
512	imFont imLocale inputMethod insecure int_bwidth intensityStyles	1014	imFont imLocale inputMethod insecure int_bwidth intensityStyles
513	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier	1015	italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
514	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2	1016	mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
515	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd	1017	perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
516	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating	1018	preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
517	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput	1019	scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
518	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle	1020	scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
519	shade term_name title transparent transparent_all tripleclickwords	1021	secondaryScreen secondaryScroll selectstyle shade term_name title
520	utmpInhibit visualBell	1022	transient_for transparent transparent_all tripleclickwords utmpInhibit
		1023	visualBell
521		1024
522	=cut	1025	=cut
523		1026
524	sub urxvt::term::resource($$;$) {	1027	sub resource($$;$) {
525	my ($self, $name) = (shift, shift);	1028	my ($self, $name) = (shift, shift);
526	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);	1029	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
527	goto &urxvt::term::_resource;	1030	&urxvt::term::_resource
528	}	1031	}
		1032
		1033	=item $value = $term->x_resource ($pattern)
		1034
		1035	Returns the X-Resource for the given pattern, excluding the program or
		1036	class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
		1037	same value as used by this instance of rxvt-unicode. Returns C<undef> if no
		1038	resource with that pattern exists.
		1039
		1040	This method should only be called during the C<on_start> hook, as there is
		1041	only one resource database per display, and later invocations might return
		1042	the wrong resources.
		1043
		1044	=item $success = $term->parse_keysym ($keysym_spec, $command_string)
		1045
		1046	Adds a keymap translation exactly as specified via a resource. See the
		1047	C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
529		1048
530	=item $rend = $term->rstyle ([$new_rstyle])	1049	=item $rend = $term->rstyle ([$new_rstyle])
531		1050
532	Return and optionally change the current rendition. Text that is output by	1051	Return and optionally change the current rendition. Text that is output by
533	the terminal application will use this style.	1052	the terminal application will use this style.
…		…
544	=item ($row, $col) = $term->selection_end ([$row, $col])	1063	=item ($row, $col) = $term->selection_end ([$row, $col])
545		1064
546	Return the current values of the selection mark, begin or end positions,	1065	Return the current values of the selection mark, begin or end positions,
547	and optionally set them to new values.	1066	and optionally set them to new values.
548		1067
		1068	=item $term->selection_make ($eventtime[, $rectangular])
		1069
		1070	Tries to make a selection as set by C<selection_beg> and
		1071	C<selection_end>. If C<$rectangular> is true (default: false), a
		1072	rectangular selection will be made. This is the prefered function to make
		1073	a selection.
		1074
549	=item $success = $term->selection_grab ($eventtime)	1075	=item $success = $term->selection_grab ($eventtime)
550		1076
551	Try to request the primary selection from the server (for example, as set	1077	Try to request the primary selection text from the server (for example, as
552	by the next method).	1078	set by the next method). No visual feedback will be given. This function
		1079	is mostly useful from within C<on_sel_grab> hooks.
553		1080
554	=item $oldtext = $term->selection ([$newtext])	1081	=item $oldtext = $term->selection ([$newtext])
555		1082
556	Return the current selection text and optionally replace it by C<$newtext>.	1083	Return the current selection text and optionally replace it by C<$newtext>.
557		1084
558	#=item $term->overlay ($x, $y, $text)	1085	=item $term->overlay_simple ($x, $y, $text)
559	#	1086
560	#Create a simple multi-line overlay box. See the next method for details.	1087	Create a simple multi-line overlay box. See the next method for details.
561	#	1088
562	#=cut	1089	=cut
563	#	1090
564	#sub urxvt::term::scr_overlay {	1091	sub overlay_simple {
565	# my ($self, $x, $y, $text) = @_;	1092	my ($self, $x, $y, $text) = @_;
566	#	1093
567	# my @lines = split /\n/, $text;	1094	my @lines = split /\n/, $text;
568	#	1095
569	# my $w = 0;	1096	my $w = List::Util::max map $self->strwidth ($_), @lines;
570	# for (map $self->strwidth ($_), @lines) {	1097
571	# $w = $_ if $w < $_;
572	# }
573	#
574	# $self->scr_overlay_new ($x, $y, $w, scalar @lines);	1098	my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
575	# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;	1099	$overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
576	#}	1100
		1101	$overlay
		1102	}
577		1103
578	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])	1104	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
579		1105
580	Create a new (empty) overlay at the given position with the given	1106	Create a new (empty) overlay at the given position with the given
581	width/height. C<$rstyle> defines the initial rendition style	1107	width/height. C<$rstyle> defines the initial rendition style
…		…
608		1134
609	If hidden, display the overlay again.	1135	If hidden, display the overlay again.
610		1136
611	=back	1137	=back
612		1138
		1139	=item $popup = $term->popup ($event)
		1140
		1141	Creates a new C<urxvt::popup> object that implements a popup menu. The
		1142	C<$event> I<must> be the event causing the menu to pop up (a button event,
		1143	currently).
		1144
		1145	=cut
		1146
		1147	sub popup {
		1148	my ($self, $event) = @_;
		1149
		1150	$self->grab ($event->{time}, 1)
		1151	or return;
		1152
		1153	my $popup = bless {
		1154	term => $self,
		1155	event => $event,
		1156	}, urxvt::popup::;
		1157
		1158	Scalar::Util::weaken $popup->{term};
		1159
		1160	$self->{_destroy}{$popup} = urxvt::destroy_hook { $popup->{popup}->destroy };
		1161	Scalar::Util::weaken $self->{_destroy}{$popup};
		1162
		1163	$popup
		1164	}
		1165
613	=item $cellwidth = $term->strwidth $string	1166	=item $cellwidth = $term->strwidth ($string)
614		1167
615	Returns the number of screen-cells this string would need. Correctly	1168	Returns the number of screen-cells this string would need. Correctly
616	accounts for wide and combining characters.	1169	accounts for wide and combining characters.
617		1170
618	=item $octets = $term->locale_encode $string	1171	=item $octets = $term->locale_encode ($string)
619		1172
620	Convert the given text string into the corresponding locale encoding.	1173	Convert the given text string into the corresponding locale encoding.
621		1174
622	=item $string = $term->locale_decode $octets	1175	=item $string = $term->locale_decode ($octets)
623		1176
624	Convert the given locale-encoded octets into a perl string.	1177	Convert the given locale-encoded octets into a perl string.
		1178
		1179	=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
		1180
		1181	XORs the rendition values in the given span with the provided value
		1182	(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
		1183	refresh hooks to provide effects similar to the selection.
		1184
		1185	=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
		1186
		1187	Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
		1188	whitespace will additionally be xored with the C<$rstyle2>, which defaults
		1189	to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
		1190	it instead. Both styles I<MUST NOT> contain font styles.
		1191
		1192	=item $term->scr_bell
		1193
		1194	Ring the bell!
625		1195
626	=item $term->scr_add_lines ($string)	1196	=item $term->scr_add_lines ($string)
627		1197
628	Write the given text string to the screen, as if output by the application	1198	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	1199	running inside the terminal. It may not contain command sequences (escape
…		…
632		1202
633	Normally its not a good idea to use this function, as programs might be	1203	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	1204	confused by changes in cursor position or scrolling. Its useful inside a
635	C<on_add_lines> hook, though.	1205	C<on_add_lines> hook, though.
636		1206
		1207	=item $term->cmd_parse ($octets)
		1208
		1209	Similar to C<scr_add_lines>, but the argument must be in the
		1210	locale-specific encoding of the terminal and can contain command sequences
		1211	(escape codes) that will be interpreted.
		1212
637	=item $term->tt_write ($octets)	1213	=item $term->tt_write ($octets)
638		1214
639	Write the octets given in C<$data> to the tty (i.e. as program input). To	1215	Write the octets given in C<$data> to the tty (i.e. as program input). To
640	pass characters instead of octets, you should convert your strings first	1216	pass characters instead of octets, you should convert your strings first
641	to the locale-specific encoding using C<< $term->locale_encode >>.	1217	to the locale-specific encoding using C<< $term->locale_encode >>.
642		1218
		1219	=item $old_events = $term->pty_ev_events ([$new_events])
		1220
		1221	Replaces the event mask of the pty watcher by the given event mask. Can
		1222	be used to suppress input and output handling to the pty/tty. See the
		1223	description of C<< urxvt::timer->events >>. Make sure to always restore
		1224	the previous value.
		1225
		1226	=item $windowid = $term->parent
		1227
		1228	Return the window id of the toplevel window.
		1229
		1230	=item $windowid = $term->vt
		1231
		1232	Return the window id of the terminal window.
		1233
		1234	=item $term->vt_emask_add ($x_event_mask)
		1235
		1236	Adds the specified events to the vt event mask. Useful e.g. when you want
		1237	to receive pointer events all the times:
		1238
		1239	$term->vt_emask_add (urxvt::PointerMotionMask);
		1240
643	=item $window_width = $term->width	1241	=item $window_width = $term->width
644		1242
645	=item $window_height = $term->height	1243	=item $window_height = $term->height
646		1244
647	=item $font_width = $term->fwidth	1245	=item $font_width = $term->fwidth
…		…
660		1258
661	=item $max_scrollback = $term->saveLines	1259	=item $max_scrollback = $term->saveLines
662		1260
663	=item $nrow_plus_saveLines = $term->total_rows	1261	=item $nrow_plus_saveLines = $term->total_rows
664		1262
665	=item $lines_in_scrollback = $term->nsaved	1263	=item $topmost_scrollback_row = $term->top_row
666		1264
667	Return various integers describing terminal characteristics.	1265	Return various integers describing terminal characteristics.
668		1266
		1267	=item $x_display = $term->display_id
		1268
		1269	Return the DISPLAY used by rxvt-unicode.
		1270
		1271	=item $lc_ctype = $term->locale
		1272
		1273	Returns the LC_CTYPE category string used by this rxvt-unicode.
		1274
		1275	=item $env = $term->env
		1276
		1277	Returns a copy of the environment in effect for the terminal as a hashref
		1278	similar to C<\%ENV>.
		1279
		1280	=cut
		1281
		1282	sub env {
		1283	if (my $env = $_[0]->_env) {
		1284	+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), @$env }
		1285	} else {
		1286	+{ %ENV }
		1287	}
		1288	}
		1289
		1290	=item $modifiermask = $term->ModLevel3Mask
		1291
		1292	=item $modifiermask = $term->ModMetaMask
		1293
		1294	=item $modifiermask = $term->ModNumLockMask
		1295
		1296	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
		1297	AltGr), the meta key (often Alt) and the num lock key, if applicable.
		1298
669	=item $view_start = $term->view_start ([$newvalue])	1299	=item $view_start = $term->view_start ([$newvalue])
670		1300
671	Returns the negative row number of the topmost line. Minimum value is	1301	Returns the row number of the topmost displayed line. Maximum value is
672	C<0>, which displays the normal terminal contents. Larger values scroll	1302	C<0>, which displays the normal terminal contents. Lower values scroll
673	this many lines into the scrollback buffer.	1303	this many lines into the scrollback buffer.
674		1304
675	=item $term->want_refresh	1305	=item $term->want_refresh
676		1306
677	Requests a screen refresh. At the next opportunity, rxvt-unicode will	1307	Requests a screen refresh. At the next opportunity, rxvt-unicode will
…		…
735	about the logical line that row C<$row_number> is part of. It supports the	1365	about the logical line that row C<$row_number> is part of. It supports the
736	following methods:	1366	following methods:
737		1367
738	=over 4	1368	=over 4
739		1369
740	=item $text = $line->t	1370	=item $text = $line->t ([$new_text])
741		1371
742	Returns the full text of the line, similar to C<ROW_t>	1372	Returns or replaces the full text of the line, similar to C<ROW_t>
743		1373
744	=item $rend = $line->r	1374	=item $rend = $line->r ([$new_rend])
745		1375
746	Returns the full rendition array of the line, similar to C<ROW_r>	1376	Returns or replaces the full rendition array of the line, similar to C<ROW_r>
747		1377
748	=item $length = $line->l	1378	=item $length = $line->l
749		1379
750	Returns the length of the line in cells, similar to C<ROW_l>.	1380	Returns the length of the line in cells, similar to C<ROW_l>.
751		1381
…		…
756	Return the row number of the first/last row of the line, respectively.	1386	Return the row number of the first/last row of the line, respectively.
757		1387
758	=item $offset = $line->offset_of ($row, $col)	1388	=item $offset = $line->offset_of ($row, $col)
759		1389
760	Returns the character offset of the given row|col pair within the logical	1390	Returns the character offset of the given row|col pair within the logical
761	line.	1391	line. Works for rows outside the line, too, and returns corresponding
		1392	offsets outside the string.
762		1393
763	=item ($row, $col) = $line->coord_of ($offset)	1394	=item ($row, $col) = $line->coord_of ($offset)
764		1395
765	Translates a string offset into terminal coordinates again.	1396	Translates a string offset into terminal coordinates again.
766		1397
767	=back	1398	=back
768		1399
769	=cut	1400	=cut
770		1401
771	sub urxvt::term::line {	1402	sub line {
772	my ($self, $row) = @_;	1403	my ($self, $row) = @_;
773		1404
774	my $maxrow = $self->nrow - 1;	1405	my $maxrow = $self->nrow - 1;
775		1406
776	my ($beg, $end) = ($row, $row);	1407	my ($beg, $end) = ($row, $row);
…		…
780		1411
781	bless {	1412	bless {
782	term => $self,	1413	term => $self,
783	beg => $beg,	1414	beg => $beg,
784	end => $end,	1415	end => $end,
		1416	ncol => $self->ncol,
785	len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),	1417	len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),
786	}, urxvt::line::	1418	}, urxvt::line::
787	}	1419	}
788		1420
789	sub urxvt::line::t {	1421	sub urxvt::line::t {
790	my ($self) = @_;	1422	my ($self) = @_;
791		1423
		1424	if (@_ > 1)
		1425	{
		1426	$self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
		1427	for $self->{beg} .. $self->{end};
		1428	}
		1429
		1430	defined wantarray &&
792	substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),	1431	substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),
793	0, $self->{len}	1432	0, $self->{len}
794	}	1433	}
795		1434
796	sub urxvt::line::r {	1435	sub urxvt::line::r {
797	my ($self) = @_;	1436	my ($self) = @_;
798		1437
		1438	if (@_ > 1)
		1439	{
		1440	$self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
		1441	for $self->{beg} .. $self->{end};
		1442	}
		1443
		1444	if (defined wantarray) {
799	my $rend = [	1445	my $rend = [
800	map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}	1446	map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}
801	];	1447	];
802	$#$rend = $self->{len} - 1;	1448	$#$rend = $self->{len} - 1;
803	$rend	1449	return $rend;
		1450	}
		1451
		1452	()
804	}	1453	}
805		1454
806	sub urxvt::line::beg { $_[0]{beg} }	1455	sub urxvt::line::beg { $_[0]{beg} }
807	sub urxvt::line::end { $_[0]{end} }	1456	sub urxvt::line::end { $_[0]{end} }
808	sub urxvt::line::l { $_[0]{len} }	1457	sub urxvt::line::l { $_[0]{len} }
809		1458
810	sub urxvt::line::offset_of {	1459	sub urxvt::line::offset_of {
811	my ($self, $row, $col) = @_;	1460	my ($self, $row, $col) = @_;
812		1461
813	($row - $self->{beg}) * $self->{term}->ncol + $col	1462	($row - $self->{beg}) * $self->{ncol} + $col
814	}	1463	}
815		1464
816	sub urxvt::line::coord_of {	1465	sub urxvt::line::coord_of {
817	my ($self, $offset) = @_;	1466	my ($self, $offset) = @_;
818		1467
819	use integer;	1468	use integer;
820		1469
821	(	1470	(
822	$offset / $self->{term}->ncol + $self->{beg},	1471	$offset / $self->{ncol} + $self->{beg},
823	$offset % $self->{term}->ncol	1472	$offset % $self->{ncol}
824	)	1473	)
825	}	1474	}
826		1475
827	=item ($row, $col) = $line->coord_of ($offset)
828	=item $text = $term->special_encode $string	1476	=item $text = $term->special_encode $string
829		1477
830	Converts a perl string into the special encoding used by rxvt-unicode,	1478	Converts a perl string into the special encoding used by rxvt-unicode,
831	where one character corresponds to one screen cell. See	1479	where one character corresponds to one screen cell. See
832	C<< $term->ROW_t >> for details.	1480	C<< $term->ROW_t >> for details.
833		1481
834	=item $string = $term->special_decode $text	1482	=item $string = $term->special_decode $text
835		1483
836	Converts rxvt-unicodes text reprsentation into a perl string. See	1484	Converts rxvt-unicodes text reprsentation into a perl string. See
837	C<< $term->ROW_t >> for details.	1485	C<< $term->ROW_t >> for details.
		1486
		1487	=item $success = $term->grab_button ($button, $modifiermask)
		1488
		1489	Registers a synchronous button grab. See the XGrabButton manpage.
		1490
		1491	=item $success = $term->grab ($eventtime[, $sync])
		1492
		1493	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
		1494	synchronous (C<$sync> is true). Also remembers the grab timestampe.
		1495
		1496	=item $term->allow_events_async
		1497
		1498	Calls XAllowEvents with AsyncBoth for the most recent grab.
		1499
		1500	=item $term->allow_events_sync
		1501
		1502	Calls XAllowEvents with SyncBoth for the most recent grab.
		1503
		1504	=item $term->allow_events_replay
		1505
		1506	Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
		1507	recent grab.
		1508
		1509	=item $term->ungrab
		1510
		1511	Calls XUngrab for the most recent grab. Is called automatically on
		1512	evaluation errors, as it is better to lose the grab in the error case as
		1513	the session.
		1514
		1515	=back
		1516
		1517	=cut
		1518
		1519	package urxvt::popup;
		1520
		1521	=head2 The C<urxvt::popup> Class
		1522
		1523	=over 4
		1524
		1525	=cut
		1526
		1527	sub add_item {
		1528	my ($self, $item) = @_;
		1529
		1530	$item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal};
		1531	$item->{rend}{hover} = "\x1b[0;30;46m" unless exists $item->{rend}{hover};
		1532	$item->{rend}{active} = "\x1b[m" unless exists $item->{rend}{active};
		1533
		1534	$item->{render} ||= sub { $_[0]{text} };
		1535
		1536	push @{ $self->{item} }, $item;
		1537	}
		1538
		1539	=item $popup->add_title ($title)
		1540
		1541	Adds a non-clickable title to the popup.
		1542
		1543	=cut
		1544
		1545	sub add_title {
		1546	my ($self, $title) = @_;
		1547
		1548	$self->add_item ({
		1549	rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
		1550	text => $title,
		1551	activate => sub { },
		1552	});
		1553	}
		1554
		1555	=item $popup->add_separator ([$sepchr])
		1556
		1557	Creates a separator, optionally using the character given as C<$sepchr>.
		1558
		1559	=cut
		1560
		1561	sub add_separator {
		1562	my ($self, $sep) = @_;
		1563
		1564	$sep ||= "=";
		1565
		1566	$self->add_item ({
		1567	rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
		1568	text => "",
		1569	render => sub { $sep x $self->{term}->ncol },
		1570	activate => sub { },
		1571	});
		1572	}
		1573
		1574	=item $popup->add_button ($text, $cb)
		1575
		1576	Adds a clickable button to the popup. C<$cb> is called whenever it is
		1577	selected.
		1578
		1579	=cut
		1580
		1581	sub add_button {
		1582	my ($self, $text, $cb) = @_;
		1583
		1584	$self->add_item ({ type => "button", text => $text, activate => $cb});
		1585	}
		1586
		1587	=item $popup->add_toggle ($text, $cb, $initial_value)
		1588
		1589	Adds a toggle/checkbox item to the popup. Teh callback gets called
		1590	whenever it gets toggled, with a boolean indicating its value as its first
		1591	argument.
		1592
		1593	=cut
		1594
		1595	sub add_toggle {
		1596	my ($self, $text, $cb, $value) = @_;
		1597
		1598	my $item; $item = {
		1599	type => "button",
		1600	text => " $text",
		1601	value => $value,
		1602	render => sub { ($_[0]{value} ? "* " : " ") . $text },
		1603	activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
		1604	};
		1605
		1606	$self->add_item ($item);
		1607	}
		1608
		1609	=item $popup->show
		1610
		1611	Displays the popup (which is initially hidden).
		1612
		1613	=cut
		1614
		1615	sub show {
		1616	my ($self) = @_;
		1617
		1618	local $urxvt::popup::self = $self;
		1619
		1620	my $env = $self->{term}->env;
		1621	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
		1622	delete $env->{LC_ALL};
		1623	$env->{LC_CTYPE} = $self->{term}->locale;
		1624
		1625	urxvt::term->new ($env, "popup",
		1626	"--perl-lib" => "", "--perl-ext-common" => "",
		1627	"-pty-fd" => -1, "-sl" => 0,
		1628	"-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
		1629	"--transient-for" => $self->{term}->parent,
		1630	"-display" => $self->{term}->display_id,
		1631	"-pe" => "urxvt-popup")
		1632	or die "unable to create popup window\n";
		1633	}
		1634
		1635	sub DESTROY {
		1636	my ($self) = @_;
		1637
		1638	delete $self->{term}{_destroy}{$self};
		1639	$self->{term}->ungrab;
		1640	}
838		1641
839	=back	1642	=back
840		1643
841	=head2 The C<urxvt::timer> Class	1644	=head2 The C<urxvt::timer> Class
842		1645
…		…
883		1686
884	=item $timer = $timer->start ($tstamp)	1687	=item $timer = $timer->start ($tstamp)
885		1688
886	Set the event trigger time to C<$tstamp> and start the timer.	1689	Set the event trigger time to C<$tstamp> and start the timer.
887		1690
		1691	=item $timer = $timer->after ($delay)
		1692
		1693	Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
		1694
888	=item $timer = $timer->stop	1695	=item $timer = $timer->stop
889		1696
890	Stop the timer.	1697	Stop the timer.
891		1698
892	=back	1699	=back
…		…
897		1704
898	$term->{socket} = ...	1705	$term->{socket} = ...
899	$term->{iow} = urxvt::iow	1706	$term->{iow} = urxvt::iow
900	->new	1707	->new
901	->fd (fileno $term->{socket})	1708	->fd (fileno $term->{socket})
902	->events (1) # wait for read data	1709	->events (urxvt::EVENT_READ)
903	->start	1710	->start
904	->cb (sub {	1711	->cb (sub {
905	my ($iow, $revents) = @_;	1712	my ($iow, $revents) = @_;
906	# $revents must be 1 here, no need to check	1713	# $revents must be 1 here, no need to check
907	sysread $term->{socket}, my $buf, 8192	1714	sysread $term->{socket}, my $buf, 8192
…		…
924		1731
925	Set the filedescriptor (not handle) to watch.	1732	Set the filedescriptor (not handle) to watch.
926		1733
927	=item $iow = $iow->events ($eventmask)	1734	=item $iow = $iow->events ($eventmask)
928		1735
929	Set the event mask to watch. Bit #0 (value C<1>) enables watching for read	1736	Set the event mask to watch. The only allowed values are
930	data, Bit #1 (value C<2>) enables watching for write data.	1737	C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed
		1738	together, or C<urxvt::EVENT_NONE>.
931		1739
932	=item $iow = $iow->start	1740	=item $iow = $iow->start
933		1741
934	Start watching for requested events on the given handle.	1742	Start watching for requested events on the given handle.
935		1743
…		…
946	This variable controls the verbosity level of the perl extension. Higher	1754	This variable controls the verbosity level of the perl extension. Higher
947	numbers indicate more verbose output.	1755	numbers indicate more verbose output.
948		1756
949	=over 4	1757	=over 4
950		1758
951	=item =0 - only fatal messages	1759	=item == 0 - fatal messages
952		1760
953	=item =3 - script loading and management	1761	=item >= 3 - script loading and management
954		1762
955	=item =10 - all events received	1763	=item >=10 - all called hooks
		1764
		1765	=item >=11 - hook reutrn values
956		1766
957	=back	1767	=back
958		1768
959	=head1 AUTHOR	1769	=head1 AUTHOR
960		1770

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