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Comparing rxvt-unicode/src/urxvt.pm (file contents):
Revision 1.25 by root, Tue Jan 3 21:08:39 2006 UTC vs.
Revision 1.88 by root, Thu Jan 12 12:05:28 2006 UTC

…		…
17		17
18	@@RXVT_NAME@@ --perl-lib $HOME -pe grab_test	18	@@RXVT_NAME@@ --perl-lib $HOME -pe grab_test
19		19
20	=head1 DESCRIPTION	20	=head1 DESCRIPTION
21		21
22	Everytime a terminal object gets created, scripts specified via the	22	Everytime a terminal object gets created, extension scripts specified via
23	C<perl> resource are loaded and associated with it.	23	the C<perl> resource are loaded and associated with it.
24		24
25	Scripts are compiled in a 'use strict' and 'use utf8' environment, and	25	Scripts are compiled in a 'use strict' and 'use utf8' environment, and
26	thus must be encoded as UTF-8.	26	thus must be encoded as UTF-8.
27		27
28	Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where	28	Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where
29	scripts will be shared (but not enabled) for all terminals.	29	scripts will be shared (but not enabled) for all terminals.
30		30
31	=head2 Prepackaged Extensions	31	=head1 PREPACKAGED EXTENSIONS
32		32
33	This section describes the extensiosn delivered with this version. You can	33	This section describes the extensions delivered with this release. You can
34	find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.	34	find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.
35		35
36	You can activate them like this:	36	You can activate them like this:
37		37
38	@@RXVT_NAME@@ -pe <extensionname>	38	@@RXVT_NAME@@ -pe <extensionname>
39		39
40	=over 4	40	=over 4
41		41
42	=item selection	42	=item selection (enabled by default)
43		43
44	Intelligent selection. This etxension tries to be more intelligent when the user	44	(More) intelligent selection. This extension tries to be more intelligent
45	extends selections (double-click).	45	when the user extends selections (double-click and further clicks). Right
		46	now, it tries to select words, urls and complete shell-quoted
		47	arguments, which is very convenient, too, if your F<ls> supports
		48	C<--quoting-style=shell>.
46		49
47	It also offers the following bindable event:	50	A double-click usually selects the word under the cursor, further clicks
		51	will enlarge the selection.
		52
		53	The selection works by trying to match a number of regexes and displaying
		54	them in increasing order of length. You can add your own regexes by
		55	specifying resources of the form:
		56
		57	URxvt.selection.pattern-0: perl-regex
		58	URxvt.selection.pattern-1: perl-regex
		59	...
		60
		61	The index number (0, 1...) must not have any holes, and each regex must
		62	contain at least one pair of capturing parentheses, which will be used for
		63	the match. For example, the followign adds a regex that matches everything
		64	between two vertical bars:
		65
		66	URxvt.selection.pattern-0: \\|([^|]+)\\|
		67
		68	You can look at the source of the selection extension to see more
		69	interesting uses, such as parsing a line from beginning to end.
		70
		71	This extension also offers the following bindable keyboard command:
48		72
49	=over 4	73	=over 4
50		74
51	=item rot13	75	=item rot13
52		76
53	Rot-13 the selection when activated. Used via keyboard trigger:	77	Rot-13 the selection when activated. Used via keyboard trigger:
54		78
55	URxvt.keysym.C-M-r: perl:selection:rot13	79	URxvt.keysym.C-M-r: perl:selection:rot13
56		80
57	=back	81	=back
		82
		83	=item option-popup (enabled by default)
		84
		85	Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at
		86	runtime.
		87
		88	=item selection-popup (enabled by default)
		89
		90	Binds a popup menu to Ctrl-Button3 that lets you convert the selection
		91	text into various other formats/action (such as uri unescaping, perl
		92	evalution, web-browser starting etc.), depending on content.
		93
		94	=item searchable-scrollback<hotkey> (enabled by default)
		95
		96	Adds regex search functionality to the scrollback buffer, triggered
		97	by a hotkey (default: C<M-s>). While in search mode, normal terminal
		98	input/output is suspended and a regex is displayed at the bottom of the
		99	screen.
		100
		101	Inputting characters appends them to the regex and continues incremental
		102	search. C<BackSpace> removes a character from the regex, C<Up> and C<Down>
		103	search upwards/downwards in the scrollback buffer, C<End> jumps to the
		104	bottom. C<Escape> leaves search mode and returns to the point where search
		105	was started, while C<Enter> or C<Return> stay at the current position and
		106	additionally stores the first match in the current line into the primary
		107	selection.
		108
		109	=item selection-autotransform
		110
		111	This selection allows you to do automatic transforms on a selection
		112	whenever a selection is made.
		113
		114	It works by specifying perl snippets (most useful is a single C<s///>
		115	operator) that modify C<$_> as resources:
		116
		117	URxvt.selection-autotransform.0: transform
		118	URxvt.selection-autotransform.1: transform
		119	...
		120
		121	For example, the following will transform selections of the form
		122	C<word:number> into C<vi +$number $word>:
		123
		124	URxvt.selection-autotransform.0: s/^(S+):(d+):?$/vi +$2 $1\\x0d/
		125
		126	And this example matches the same,but replaces it with vi-commands you can
		127	paste directory into your (vi :) editor:
		128
		129	URxvt.selection-autotransform.0: s/^(S+):(d+):?$/\\x1b:e $1\\x0d:$2\\x0d/
		130
		131	=item mark-urls
		132
		133	Uses per-line display filtering (C<on_line_update>) to underline urls and
		134	make them clickable. When middle-clicked, the program specified in the
		135	resource C<urlLauncher> (default C<x-www-browser>) will be started with
		136	the URL as first argument.
		137
		138	=item block-graphics-to-ascii
		139
		140	A not very useful example of filtering all text output to the terminal,
		141	by replacing all line-drawing characters (U+2500 .. U+259F) by a
		142	similar-looking ascii character.
58		143
59	=item digital-clock	144	=item digital-clock
60		145
61	Displays a digital clock using the built-in overlay.	146	Displays a digital clock using the built-in overlay.
62		147
…		…
65	Displays a very simple digital clock in the upper right corner of the	150	Displays a very simple digital clock in the upper right corner of the
66	window. Illustrates overwriting the refresh callbacks to create your own	151	window. Illustrates overwriting the refresh callbacks to create your own
67	overlays or changes.	152	overlays or changes.
68		153
69	=back	154	=back
		155
		156	=head1 API DOCUMENTATION
70		157
71	=head2 General API Considerations	158	=head2 General API Considerations
72		159
73	All objects (such as terminals, time watchers etc.) are typical	160	All objects (such as terminals, time watchers etc.) are typical
74	reference-to-hash objects. The hash can be used to store anything you	161	reference-to-hash objects. The hash can be used to store anything you
…		…
79	When objects are destroyed on the C++ side, the perl object hashes are	166	When objects are destroyed on the C++ side, the perl object hashes are
80	emptied, so its best to store related objects such as time watchers and	167	emptied, so its best to store related objects such as time watchers and
81	the like inside the terminal object so they get destroyed as soon as the	168	the like inside the terminal object so they get destroyed as soon as the
82	terminal is destroyed.	169	terminal is destroyed.
83		170
		171	Argument names also often indicate the type of a parameter. Here are some
		172	hints on what they mean:
		173
		174	=over 4
		175
		176	=item $text
		177
		178	Rxvt-unicodes special way of encoding text, where one "unicode" character
		179	always represents one screen cell. See L<ROW_t> for a discussion of this format.
		180
		181	=item $string
		182
		183	A perl text string, with an emphasis on I<text>. It can store all unicode
		184	characters and is to be distinguished with text encoded in a specific
		185	encoding (often locale-specific) and binary data.
		186
		187	=item $octets
		188
		189	Either binary data or - more common - a text string encoded in a
		190	locale-specific way.
		191
		192	=back
		193
		194	=head2 Extension Objects
		195
		196	Very perl extension is a perl class. A separate perl object is created
		197	for each terminal and each extension and passed as the first parameter to
		198	hooks. So extensions can use their C<$self> object without having to think
		199	about other extensions, with the exception of methods and members that
		200	begin with an underscore character C<_>: these are reserved for internal
		201	use.
		202
		203	Although it isn't a C<urxvt::term> object, you can call all methods of the
		204	C<urxvt::term> class on this object.
		205
		206	It has the following methods and data members:
		207
		208	=over 4
		209
		210	=item $urxvt_term = $self->{term}
		211
		212	Returns the C<urxvt::term> object associated with this instance of the
		213	extension. This member I<must not> be changed in any way.
		214
		215	=item $self->enable ($hook_name => $cb, [$hook_name => $cb..])
		216
		217	Dynamically enable the given hooks (named without the C<on_> prefix) for
		218	this extension, replacing any previous hook. This is useful when you want
		219	to overwrite time-critical hooks only temporarily.
		220
		221	=item $self->disable ($hook_name[, $hook_name..])
		222
		223	Dynamically disable the given hooks.
		224
		225	=back
		226
84	=head2 Hooks	227	=head2 Hooks
85		228
86	The following subroutines can be declared in loaded scripts, and will be	229	The following subroutines can be declared in extension files, and will be
87	called whenever the relevant event happens.	230	called whenever the relevant event happens.
88		231
89	The first argument passed to them is an object private to each terminal	232	The first argument passed to them is an extension oject as described in
90	and extension package. You can call all C<urxvt::term> methods on it, but	233	the in the C<Extension Objects> section.
91	its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
92	object that is shared between all packages is stored in the C<term>
93	member.
94		234
95	All of them must return a boolean value. If it is true, then the event	235	B<All> of these hooks must return a boolean value. If it is true, then the
96	counts as being I<consumed>, and the invocation of other hooks is skipped,	236	event counts as being I<consumed>, and the invocation of other hooks is
97	and the relevant action might not be carried out by the C++ code.	237	skipped, and the relevant action might not be carried out by the C++ code.
98		238
99	When in doubt, return a false value (preferably C<()>).	239	I<< When in doubt, return a false value (preferably C<()>). >>
100		240
101	=over 4	241	=over 4
102		242
103	=item on_init $term	243	=item on_init $term
104		244
105	Called after a new terminal object has been initialized, but before	245	Called after a new terminal object has been initialized, but before
106	windows are created or the command gets run.	246	windows are created or the command gets run. Most methods are unsafe to
		247	call or deliver senseless data, as terminal size and other characteristics
		248	have not yet been determined. You can safely query and change resources,
		249	though.
107		250
108	=item on_reset $term	251	=item on_reset $term
109		252
110	Called after the screen is "reset" for any reason, such as resizing or	253	Called after the screen is "reset" for any reason, such as resizing or
111	control sequences. Here is where you can react on changes to size-related	254	control sequences. Here is where you can react on changes to size-related
…		…
136	=item on_sel_extend $term	279	=item on_sel_extend $term
137		280
138	Called whenever the user tries to extend the selection (e.g. with a double	281	Called whenever the user tries to extend the selection (e.g. with a double
139	click) and is either supposed to return false (normal operation), or	282	click) and is either supposed to return false (normal operation), or
140	should extend the selection itelf and return true to suppress the built-in	283	should extend the selection itelf and return true to suppress the built-in
141	processing.	284	processing. This can happen multiple times, as long as the callback
		285	returns true, it will be called on every further click by the user and is
		286	supposed to enlarge the selection more and more, if possible.
142		287
143	See the F<selection> example extension.	288	See the F<selection> example extension.
144
145	=item on_focus_in $term
146
147	Called whenever the window gets the keyboard focus, before urxvt does
148	focus in processing.
149
150	=item on_focus_out $term
151
152	Called wheneever the window loses keyboard focus, before urxvt does focus
153	out processing.
154		289
155	=item on_view_change $term, $offset	290	=item on_view_change $term, $offset
156		291
157	Called whenever the view offset changes, i..e the user or program	292	Called whenever the view offset changes, i..e the user or program
158	scrolls. Offset C<0> means display the normal terminal, positive values	293	scrolls. Offset C<0> means display the normal terminal, positive values
…		…
166		301
167	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,	302	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
168	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total	303	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
169	number of lines that will be in the scrollback buffer.	304	number of lines that will be in the scrollback buffer.
170		305
171	=item on_tty_activity $term *NYI*	306	=item on_osc_seq $term, $string
172		307
173	Called whenever the program(s) running in the urxvt window send output.	308	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
		309	operating system command) is processed. Cursor position and other state
		310	information is up-to-date when this happens. For interoperability, the
		311	string should start with the extension name and a colon, to distinguish
		312	it from commands for other extensions, and this might be enforced in the
		313	future.
		314
		315	Be careful not ever to trust (in a security sense) the data you receive,
		316	as its source can not easily be controleld (e-mail content, messages from
		317	other users on the same system etc.).
		318
		319	=item on_add_lines $term, $string
		320
		321	Called whenever text is about to be output, with the text as argument. You
		322	can filter/change and output the text yourself by returning a true value
		323	and calling C<< $term->scr_add_lines >> yourself. Please note that this
		324	might be very slow, however, as your hook is called for B<all> text being
		325	output.
		326
		327	=item on_tt_write $term, $octets
		328
		329	Called whenever some data is written to the tty/pty and can be used to
		330	suppress or filter tty input.
		331
		332	=item on_line_update $term, $row
		333
		334	Called whenever a line was updated or changed. Can be used to filter
		335	screen output (e.g. underline urls or other useless stuff). Only lines
		336	that are being shown will be filtered, and, due to performance reasons,
		337	not always immediately.
		338
		339	The row number is always the topmost row of the line if the line spans
		340	multiple rows.
		341
		342	Please note that, if you change the line, then the hook might get called
		343	later with the already-modified line (e.g. if unrelated parts change), so
		344	you cannot just toggle rendition bits, but only set them.
174		345
175	=item on_refresh_begin $term	346	=item on_refresh_begin $term
176		347
177	Called just before the screen gets redrawn. Can be used for overlay	348	Called just before the screen gets redrawn. Can be used for overlay
178	or similar effects by modify terminal contents in refresh_begin, and	349	or similar effects by modify terminal contents in refresh_begin, and
…		…
187		358
188	Called whenever the user presses a key combination that has a	359	Called whenever the user presses a key combination that has a
189	C<perl:string> action bound to it (see description of the B<keysym>	360	C<perl:string> action bound to it (see description of the B<keysym>
190	resource in the @@RXVT_NAME@@(1) manpage).	361	resource in the @@RXVT_NAME@@(1) manpage).
191		362
		363	=item on_focus_in $term
		364
		365	Called whenever the window gets the keyboard focus, before rxvt-unicode
		366	does focus in processing.
		367
		368	=item on_focus_out $term
		369
		370	Called wheneever the window loses keyboard focus, before rxvt-unicode does
		371	focus out processing.
		372
		373	=item on_key_press $term, $event, $keysym, $octets
		374
		375	=item on_key_release $term, $event, $keysym
		376
		377	=item on_button_press $term, $event
		378
		379	=item on_button_release $term, $event
		380
		381	=item on_motion_notify $term, $event
		382
		383	=item on_map_notify $term, $event
		384
		385	=item on_unmap_notify $term, $event
		386
		387	Called whenever the corresponding X event is received for the terminal If
		388	the hook returns true, then the even will be ignored by rxvt-unicode.
		389
		390	The event is a hash with most values as named by Xlib (see the XEvent
		391	manpage), with the additional members C<row> and C<col>, which are the row
		392	and column under the mouse cursor.
		393
		394	C<on_key_press> additionally receives the string rxvt-unicode would
		395	output, if any, in locale-specific encoding.
		396
		397	subwindow.
		398
192	=back	399	=back
193		400
		401	=cut
		402
		403	package urxvt;
		404
		405	use utf8;
		406	use strict;
		407	use Carp ();
		408	use Scalar::Util ();
		409	use List::Util ();
		410
		411	our $VERSION = 1;
		412	our $TERM;
		413	our @HOOKNAME;
		414	our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
		415	our %OPTION;
		416
		417	our $LIBDIR;
		418	our $RESNAME;
		419	our $RESCLASS;
		420	our $RXVTNAME;
		421
194	=head2 Variables in the C<urxvt> Package	422	=head2 Variables in the C<urxvt> Package
195		423
196	=over 4	424	=over 4
197		425
		426	=item $urxvt::LIBDIR
		427
		428	The rxvt-unicode library directory, where, among other things, the perl
		429	modules and scripts are stored.
		430
		431	=item $urxvt::RESCLASS, $urxvt::RESCLASS
		432
		433	The resource class and name rxvt-unicode uses to look up X resources.
		434
		435	=item $urxvt::RXVTNAME
		436
		437	The basename of the installed binaries, usually C<urxvt>.
		438
198	=item $urxvt::TERM	439	=item $urxvt::TERM
199		440
200	The current terminal. Whenever a callback/Hook is bein executed, this	441	The current terminal. This variable stores the current C<urxvt::term>
201	variable stores the current C<urxvt::term> object.	442	object, whenever a callback/hook is executing.
202		443
203	=back	444	=back
204		445
205	=head2 Functions in the C<urxvt> Package	446	=head2 Functions in the C<urxvt> Package
206		447
…		…
219	that calls this function.	460	that calls this function.
220		461
221	Using this function has the advantage that its output ends up in the	462	Using this function has the advantage that its output ends up in the
222	correct place, e.g. on stderr of the connecting urxvtc client.	463	correct place, e.g. on stderr of the connecting urxvtc client.
223		464
		465	Messages have a size limit of 1023 bytes currently.
		466
		467	=item $is_safe = urxvt::safe
		468
		469	Returns true when it is safe to do potentially unsafe things, such as
		470	evaluating perl code specified by the user. This is true when urxvt was
		471	started setuid or setgid.
		472
224	=item $time = urxvt::NOW	473	=item $time = urxvt::NOW
225		474
226	Returns the "current time" (as per the event loop).	475	Returns the "current time" (as per the event loop).
		476
		477	=item urxvt::CurrentTime
		478
		479	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
		480	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
		481	Button4Mask, Button5Mask, AnyModifier
		482
		483	Various constants for use in X calls and event processing.
227		484
228	=back	485	=back
229		486
230	=head2 RENDITION	487	=head2 RENDITION
231		488
…		…
258		515
259	=item $background = urxvt::GET_BASEBG $rend	516	=item $background = urxvt::GET_BASEBG $rend
260		517
261	Return the foreground/background colour index, respectively.	518	Return the foreground/background colour index, respectively.
262		519
263	=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)	520	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
264		521
265	=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)	522	=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
266		523
267	Replace the foreground/background colour in the rendition mask with the	524	Replace the foreground/background colour in the rendition mask with the
268	specified one.	525	specified one.
269		526
270	=item $value = urxvt::GET_CUSTOM ($rend)	527	=item $value = urxvt::GET_CUSTOM $rend
271		528
272	Return the "custom" value: Every rendition has 5 bits for use by	529	Return the "custom" value: Every rendition has 5 bits for use by
273	extensions. They can be set and changed as you like and are initially	530	extensions. They can be set and changed as you like and are initially
274	zero.	531	zero.
275		532
276	=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)	533	=item $rend = urxvt::SET_CUSTOM $rend, $new_value
277		534
278	Change the custom value.	535	Change the custom value.
279		536
280	=back	537	=back
281		538
282	=cut	539	=cut
283
284	package urxvt;
285
286	use strict;
287	use Scalar::Util ();
288
289	our $TERM;
290	our @HOOKNAME;
291	our $LIBDIR;
292		540
293	BEGIN {	541	BEGIN {
294	urxvt->bootstrap;	542	urxvt->bootstrap;
295		543
296	# overwrite perl's warn	544	# overwrite perl's warn
…		…
298	my $msg = join "", @_;	546	my $msg = join "", @_;
299	$msg .= "\n"	547	$msg .= "\n"
300	unless $msg =~ /\n$/;	548	unless $msg =~ /\n$/;
301	urxvt::warn ($msg);	549	urxvt::warn ($msg);
302	};	550	};
		551
		552	# %ENV is the original startup environment
		553	delete $ENV{IFS};
		554	delete $ENV{CDPATH};
		555	delete $ENV{BASH_ENV};
		556	$ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
303	}	557	}
304		558
305	my @hook_count;	559	my @hook_count;
306	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};	560	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
307		561
308	sub verbose {	562	sub verbose {
309	my ($level, $msg) = @_;	563	my ($level, $msg) = @_;
310	warn "$msg\n" if $level <= $verbosity;	564	warn "$msg\n" if $level <= $verbosity;
311	}	565	}
312		566
313	# find on_xxx subs in the package and register them	567	my $extension_pkg = "extension0000";
314	# as hooks	568	my %extension_pkg;
315	sub register_package($) {
316	my ($pkg) = @_;
317
318	for my $htype (0.. $#HOOKNAME) {
319	my $name = $HOOKNAME[$htype];
320
321	my $ref = $pkg->can ("on_" . lc $name)
322	or next;
323
324	$TERM->{_hook}[$htype]{$pkg} = $ref;
325	$hook_count[$htype]++
326	or set_should_invoke $htype, 1;
327	}
328	}
329
330	my $script_pkg = "script0000";
331	my %script_pkg;
332		569
333	# load a single script into its own package, once only	570	# load a single script into its own package, once only
334	sub script_package($) {	571	sub extension_package($) {
335	my ($path) = @_;	572	my ($path) = @_;
336		573
337	$script_pkg{$path} ||= do {	574	$extension_pkg{$path} ||= do {
338	my $pkg = "urxvt::" . ($script_pkg++);	575	my $pkg = "urxvt::" . ($extension_pkg++);
339		576
340	verbose 3, "loading script '$path' into package '$pkg'";	577	verbose 3, "loading extension '$path' into package '$pkg'";
341		578
342	open my $fh, "<:raw", $path	579	open my $fh, "<:raw", $path
343	or die "$path: $!";	580	or die "$path: $!";
344		581
		582	my $source = untaint
345	my $source = "package $pkg; use strict; use utf8;\n"	583	"package $pkg; use strict; use utf8;\n"
		584	. "use base urxvt::term::extension::;\n"
346	. "#line 1 \"$path\"\n{\n"	585	. "#line 1 \"$path\"\n{\n"
347	. (do { local $/; <$fh> })	586	. (do { local $/; <$fh> })
348	. "\n};\n1";	587	. "\n};\n1";
349		588
		589	eval $source
350	eval $source or die "$path: $@";	590	or die "$path: $@";
351		591
352	$pkg	592	$pkg
353	}	593	}
354	}	594	}
		595
		596	our $retval; # return value for urxvt
355		597
356	# called by the rxvt core	598	# called by the rxvt core
357	sub invoke {	599	sub invoke {
358	local $TERM = shift;	600	local $TERM = shift;
359	my $htype = shift;	601	my $htype = shift;
360		602
361	if ($htype == 0) { # INIT	603	if ($htype == 0) { # INIT
362	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");	604	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
		605
		606	my %ext_arg;
363		607
364	for my $ext (split /:/, $TERM->resource ("perl_ext")) {	608	for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
		609	if ($_ eq "default") {
		610	$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback);
		611	} elsif (/^-(.*)$/) {
		612	delete $ext_arg{$1};
		613	} elsif (/^([^<]+)<(.*)>$/) {
		614	push @{ $ext_arg{$1} }, $2;
		615	} else {
		616	$ext_arg{$_} ||= [];
		617	}
		618	}
		619
		620	while (my ($ext, $argv) = each %ext_arg) {
365	my @files = grep -f $_, map "$_/$ext", @dirs;	621	my @files = grep -f $_, map "$_/$ext", @dirs;
366		622
367	if (@files) {	623	if (@files) {
368	register_package script_package $files[0];	624	$TERM->register_package (extension_package $files[0], $argv);
369	} else {	625	} else {
370	warn "perl extension '$ext' not found in perl library search path\n";	626	warn "perl extension '$ext' not found in perl library search path\n";
371	}	627	}
372	}	628	}
373		629
		630	eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval");
		631	warn $@ if $@;
		632	}
		633
		634	$retval = undef;
		635
		636	if (my $cb = $TERM->{_hook}[$htype]) {
		637	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
		638	if $verbosity >= 10;
		639
		640	keys %$cb;
		641
		642	while (my ($pkg, $cb) = each %$cb) {
		643	$retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) }
		644	and last;
		645
		646	if ($@) {
		647	$TERM->ungrab; # better to lose the grab than the session
		648	warn $@;
		649	}
		650	}
		651
		652	verbose 11, "$HOOKNAME[$htype] returning <$retval>"
		653	if $verbosity >= 11;
		654	}
		655
374	} elsif ($htype == 1) { # DESTROY	656	if ($htype == 1) { # DESTROY
375	if (my $hook = $TERM->{_hook}) {	657	if (my $hook = delete $TERM->{_hook}) {
376	for my $htype (0..$#$hook) {	658	for my $htype (0..$#$hook) {
377	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }	659	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
378	or set_should_invoke $htype, 0;	660	or set_should_invoke $htype, 0;
379	}	661	}
380	}	662	}
		663
		664	# clear package objects
		665	%$_ = () for values %{ $TERM->{_pkg} };
		666
		667	# clear package
		668	%$TERM = ();
381	}	669	}
382		670
383	my $cb = $TERM->{_hook}[$htype]	671	$retval
384	or return;	672	}
385		673
386	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"	674	sub exec_async(@) {
387	if $verbosity >= 10;	675	my $pid = fork;
388		676
389	keys %$cb;	677	return
		678	if !defined $pid or $pid;
390		679
		680	%ENV = %{ $TERM->env };
		681
		682	exec @_;
		683	_exit 255;
		684	}
		685
		686	# urxvt::term::extension
		687
		688	package urxvt::term::extension;
		689
		690	sub enable {
		691	my ($self, %hook) = @_;
		692	my $pkg = $self->{_pkg};
		693
391	while (my ($pkg, $cb) = each %$cb) {	694	while (my ($name, $cb) = each %hook) {
392	return 1	695	my $htype = $HOOKTYPE{uc $name};
393	if $cb->(	696	defined $htype
394	$TERM->{$pkg} ||= do {	697	or Carp::croak "unsupported hook type '$name'";
395	my $proxy = bless { }, urxvt::term::proxy::;	698
396	Scalar::Util::weaken ($proxy->{term} = $TERM);	699	unless (exists $self->{term}{_hook}[$htype]{$pkg}) {
397	$proxy	700	$hook_count[$htype]++
398	},	701	or urxvt::set_should_invoke $htype, 1;
399	@_,	702	}
400	);	703
		704	$self->{term}{_hook}[$htype]{$pkg} = $cb;
401	}	705	}
		706	}
402		707
		708	sub disable {
		709	my ($self, @hook) = @_;
		710	my $pkg = $self->{_pkg};
		711
		712	for my $name (@hook) {
		713	my $htype = $HOOKTYPE{uc $name};
		714	defined $htype
		715	or Carp::croak "unsupported hook type '$name'";
		716
		717	if (delete $self->{term}{_hook}[$htype]{$pkg}) {
		718	--$hook_count[$htype]
		719	or urxvt::set_should_invoke $htype, 0;
		720	}
403	0	721	}
404	}	722	}
405		723
406	sub urxvt::term::proxy::AUTOLOAD {	724	our $AUTOLOAD;
407	$urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/	725
		726	sub AUTOLOAD {
		727	$AUTOLOAD =~ /:([^:]+)$/
408	or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";	728	or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
409		729
410	eval qq{	730	eval qq{
411	sub $urxvt::term::proxy::AUTOLOAD {	731	sub $AUTOLOAD {
412	my \$proxy = shift;	732	my \$proxy = shift;
413	\$proxy->{term}->$1 (\@_)	733	\$proxy->{term}->$1 (\@_)
414	}	734	}
415	1	735	1
416	} or die "FATAL: unable to compile method forwarder: $@";	736	} or die "FATAL: unable to compile method forwarder: $@";
417		737
418	goto &$urxvt::term::proxy::AUTOLOAD;	738	goto &$AUTOLOAD;
419	}	739	}
		740
		741	sub DESTROY {
		742	# nop
		743	}
		744
		745	# urxvt::destroy_hook
		746
		747	sub urxvt::destroy_hook::DESTROY {
		748	${$_[0]}->();
		749	}
		750
		751	sub urxvt::destroy_hook(&) {
		752	bless \shift, urxvt::destroy_hook::
		753	}
		754
		755	package urxvt::anyevent;
		756
		757	=head2 The C<urxvt::anyevent> Class
		758
		759	The sole purpose of this class is to deliver an interface to the
		760	C<AnyEvent> module - any module using it will work inside urxvt without
		761	further programming. The only exception is that you cannot wait on
		762	condition variables, but non-blocking condvar use is ok. What this means
		763	is that you cannot use blocking APIs, but the non-blocking variant should
		764	work.
		765
		766	=cut
		767
		768	our $VERSION = 1;
		769
		770	$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
		771	push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
		772
		773	sub timer {
		774	my ($class, %arg) = @_;
		775
		776	my $cb = $arg{cb};
		777
		778	urxvt::timer
		779	->new
		780	->start (urxvt::NOW + $arg{after})
		781	->cb (sub {
		782	$_[0]->stop; # need to cancel manually
		783	$cb->();
		784	})
		785	}
		786
		787	sub io {
		788	my ($class, %arg) = @_;
		789
		790	my $cb = $arg{cb};
		791
		792	bless [$arg{fh}, urxvt::iow
		793	->new
		794	->fd (fileno $arg{fh})
		795	->events (($arg{poll} =~ /r/ ? 1 : 0)
		796	| ($arg{poll} =~ /w/ ? 2 : 0))
		797	->start
		798	->cb (sub {
		799	$cb->(($_[1] & 1 ? 'r' : '')
		800	. ($_[1] & 2 ? 'w' : ''));
		801	})],
		802	urxvt::anyevent::
		803	}
		804
		805	sub DESTROY {
		806	$_[0][1]->stop;
		807	}
		808
		809	sub condvar {
		810	bless \my $flag, urxvt::anyevent::condvar::
		811	}
		812
		813	sub urxvt::anyevent::condvar::broadcast {
		814	${$_[0]}++;
		815	}
		816
		817	sub urxvt::anyevent::condvar::wait {
		818	unless (${$_[0]}) {
		819	Carp::croak "AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API";
		820	}
		821	}
		822
		823	package urxvt::term;
420		824
421	=head2 The C<urxvt::term> Class	825	=head2 The C<urxvt::term> Class
422		826
423	=over 4	827	=over 4
		828
		829	=cut
		830
		831	# find on_xxx subs in the package and register them
		832	# as hooks
		833	sub register_package {
		834	my ($self, $pkg, $argv) = @_;
		835
		836	my $proxy = bless {
		837	_pkg => $pkg,
		838	argv => $argv,
		839	}, $pkg;
		840	Scalar::Util::weaken ($proxy->{term} = $self);
		841
		842	$self->{_pkg}{$pkg} = $proxy;
		843
		844	for my $name (@HOOKNAME) {
		845	if (my $ref = $pkg->can ("on_" . lc $name)) {
		846	$proxy->enable ($name => $ref);
		847	}
		848	}
		849	}
		850
		851	=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
		852
		853	Creates a new terminal, very similar as if you had started it with system
		854	C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
		855	hash which defines the environment of the new terminal.
		856
		857	Croaks (and probably outputs an error message) if the new instance
		858	couldn't be created. Returns C<undef> if the new instance didn't
		859	initialise perl, and the terminal object otherwise. The C<init> and
		860	C<start> hooks will be called during this call.
		861
		862	=cut
		863
		864	sub new {
		865	my ($class, $env, @args) = @_;
		866
		867	_new ([ map "$_=$env->{$_}", keys %$env ], @args);
		868	}
		869
		870	=item $term->destroy
		871
		872	Destroy the terminal object (close the window, free resources
		873	etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
		874	watchers (timers, io watchers) are still active.
		875
		876	=item $isset = $term->option ($optval[, $set])
		877
		878	Returns true if the option specified by C<$optval> is enabled, and
		879	optionally change it. All option values are stored by name in the hash
		880	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
		881
		882	Here is a a likely non-exhaustive list of option names, please see the
		883	source file F</src/optinc.h> to see the actual list:
		884
		885	borderLess console cursorBlink cursorUnderline hold iconic insecure
		886	intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
		887	pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating
		888	scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer
		889	secondaryScreen secondaryScroll skipBuiltinGlyphs transparent
		890	tripleclickwords utmpInhibit visualBell
424		891
425	=item $value = $term->resource ($name[, $newval])	892	=item $value = $term->resource ($name[, $newval])
426		893
427	Returns the current resource value associated with a given name and	894	Returns the current resource value associated with a given name and
428	optionally sets a new value. Setting values is most useful in the C<init>	895	optionally sets a new value. Setting values is most useful in the C<init>
…		…
438		905
439	Please note that resource strings will currently only be freed when the	906	Please note that resource strings will currently only be freed when the
440	terminal is destroyed, so changing options frequently will eat memory.	907	terminal is destroyed, so changing options frequently will eat memory.
441		908
442	Here is a a likely non-exhaustive list of resource names, not all of which	909	Here is a a likely non-exhaustive list of resource names, not all of which
443	are supported in every build, please see the source to see the actual	910	are supported in every build, please see the source file F</src/rsinc.h>
444	list:	911	to see the actual list:
445		912
446	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont	913	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
447	borderLess color cursorBlink cursorUnderline cutchars delete_key	914	borderLess color cursorBlink cursorUnderline cutchars delete_key
448	display_name embed ext_bwidth fade font geometry hold iconName	915	display_name embed ext_bwidth fade font geometry hold iconName
449	imFont imLocale inputMethod insecure int_bwidth intensityStyles	916	imFont imLocale inputMethod insecure int_bwidth intensityStyles
450	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier	917	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier
451	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext	918	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2
452	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd	919	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd
453	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating	920	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating
454	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput	921	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput
455	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle	922	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle
456	shade term_name title transparent transparent_all tripleclickwords	923	shade term_name title transparent transparent_all tripleclickwords
457	utmpInhibit visualBell	924	utmpInhibit visualBell
458		925
459	=cut	926	=cut
460		927
461	sub urxvt::term::resource($$;$) {	928	sub resource($$;$) {
462	my ($self, $name) = (shift, shift);	929	my ($self, $name) = (shift, shift);
463	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);	930	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
464	goto &urxvt::term::_resource;	931	&urxvt::term::_resource
465	}	932	}
		933
		934	=item $value = $term->x_resource ($pattern)
		935
		936	Returns the X-Resource for the given pattern, excluding the program or
		937	class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
		938	same value as used by this instance of rxvt-unicode. Returns C<undef> if no
		939	resource with that pattern exists.
		940
		941	This method should only be called during the C<on_start> hook, as there is
		942	only one resource database per display, and later invocations might return
		943	the wrong resources.
		944
		945	=item $success = $term->parse_keysym ($keysym_spec, $command_string)
		946
		947	Adds a keymap translation exactly as specified via a resource. See the
		948	C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
		949
		950	=item $rend = $term->rstyle ([$new_rstyle])
		951
		952	Return and optionally change the current rendition. Text that is output by
		953	the terminal application will use this style.
		954
		955	=item ($row, $col) = $term->screen_cur ([$row, $col])
		956
		957	Return the current coordinates of the text cursor position and optionally
		958	set it (which is usually bad as applications don't expect that).
466		959
467	=item ($row, $col) = $term->selection_mark ([$row, $col])	960	=item ($row, $col) = $term->selection_mark ([$row, $col])
468		961
469	=item ($row, $col) = $term->selection_beg ([$row, $col])	962	=item ($row, $col) = $term->selection_beg ([$row, $col])
470		963
471	=item ($row, $col) = $term->selection_end ([$row, $col])	964	=item ($row, $col) = $term->selection_end ([$row, $col])
472		965
473	Return the current values of the selection mark, begin or end positions,	966	Return the current values of the selection mark, begin or end positions,
474	and optionally set them to new values.	967	and optionally set them to new values.
475		968
		969	=item $term->selection_make ($eventtime[, $rectangular])
		970
		971	Tries to make a selection as set by C<selection_beg> and
		972	C<selection_end>. If C<$rectangular> is true (default: false), a
		973	rectangular selection will be made. This is the prefered function to make
		974	a selection.
		975
476	=item $success = $term->selection_grab ($eventtime)	976	=item $success = $term->selection_grab ($eventtime)
477		977
478	Try to request the primary selection from the server (for example, as set	978	Try to request the primary selection text from the server (for example, as
479	by the next method).	979	set by the next method). No visual feedback will be given. This function
		980	is mostly useful from within C<on_sel_grab> hooks.
480		981
481	=item $oldtext = $term->selection ([$newtext])	982	=item $oldtext = $term->selection ([$newtext])
482		983
483	Return the current selection text and optionally replace it by C<$newtext>.	984	Return the current selection text and optionally replace it by C<$newtext>.
484		985
485	#=item $term->overlay ($x, $y, $text)	986	=item $term->overlay_simple ($x, $y, $text)
486	#	987
487	#Create a simple multi-line overlay box. See the next method for details.	988	Create a simple multi-line overlay box. See the next method for details.
488	#	989
489	#=cut	990	=cut
490		991
491	sub urxvt::term::scr_overlay {	992	sub overlay_simple {
492	die;
493	my ($self, $x, $y, $text) = @_;	993	my ($self, $x, $y, $text) = @_;
494		994
495	my @lines = split /\n/, $text;	995	my @lines = split /\n/, $text;
496		996
497	my $w = 0;	997	my $w = List::Util::max map $self->strwidth ($_), @lines;
498	for (map $self->strwidth ($_), @lines) {
499	$w = $_ if $w < $_;
500	}
501		998
502	$self->scr_overlay_new ($x, $y, $w, scalar @lines);	999	my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
503	$self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;	1000	$overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
		1001
		1002	$overlay
504	}	1003	}
505		1004
506	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])	1005	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
507		1006
508	Create a new (empty) overlay at the given position with the given	1007	Create a new (empty) overlay at the given position with the given
…		…
536		1035
537	If hidden, display the overlay again.	1036	If hidden, display the overlay again.
538		1037
539	=back	1038	=back
540		1039
		1040	=item $popup = $term->popup ($event)
		1041
		1042	Creates a new C<urxvt::popup> object that implements a popup menu. The
		1043	C<$event> I<must> be the event causing the menu to pop up (a button event,
		1044	currently).
		1045
		1046	=cut
		1047
		1048	sub popup {
		1049	my ($self, $event) = @_;
		1050
		1051	$self->grab ($event->{time}, 1)
		1052	or return;
		1053
		1054	my $popup = bless {
		1055	term => $self,
		1056	event => $event,
		1057	}, urxvt::popup::;
		1058
		1059	Scalar::Util::weaken $popup->{term};
		1060
		1061	$self->{_destroy}{$popup} = urxvt::destroy_hook { $popup->{popup}->destroy };
		1062	Scalar::Util::weaken $self->{_destroy}{$popup};
		1063
		1064	$popup
		1065	}
		1066
541	=item $cellwidth = $term->strwidth $string	1067	=item $cellwidth = $term->strwidth ($string)
542		1068
543	Returns the number of screen-cells this string would need. Correctly	1069	Returns the number of screen-cells this string would need. Correctly
544	accounts for wide and combining characters.	1070	accounts for wide and combining characters.
545		1071
546	=item $octets = $term->locale_encode $string	1072	=item $octets = $term->locale_encode ($string)
547		1073
548	Convert the given text string into the corresponding locale encoding.	1074	Convert the given text string into the corresponding locale encoding.
549		1075
550	=item $string = $term->locale_decode $octets	1076	=item $string = $term->locale_decode ($octets)
551		1077
552	Convert the given locale-encoded octets into a perl string.	1078	Convert the given locale-encoded octets into a perl string.
		1079
		1080	=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
		1081
		1082	XORs the rendition values in the given span with the provided value
		1083	(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
		1084	refresh hooks to provide effects similar to the selection.
		1085
		1086	=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
		1087
		1088	Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
		1089	whitespace will additionally be xored with the C<$rstyle2>, which defaults
		1090	to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
		1091	it instead. Both styles I<MUST NOT> contain font styles.
		1092
		1093	=item $term->scr_bell
		1094
		1095	Ring the bell!
		1096
		1097	=item $term->scr_add_lines ($string)
		1098
		1099	Write the given text string to the screen, as if output by the application
		1100	running inside the terminal. It may not contain command sequences (escape
		1101	codes), but is free to use line feeds, carriage returns and tabs. The
		1102	string is a normal text string, not in locale-dependent encoding.
		1103
		1104	Normally its not a good idea to use this function, as programs might be
		1105	confused by changes in cursor position or scrolling. Its useful inside a
		1106	C<on_add_lines> hook, though.
		1107
		1108	=item $term->cmd_parse ($octets)
		1109
		1110	Similar to C<scr_add_lines>, but the argument must be in the
		1111	locale-specific encoding of the terminal and can contain command sequences
		1112	(escape codes) that will be interpreted.
553		1113
554	=item $term->tt_write ($octets)	1114	=item $term->tt_write ($octets)
555		1115
556	Write the octets given in C<$data> to the tty (i.e. as program input). To	1116	Write the octets given in C<$data> to the tty (i.e. as program input). To
557	pass characters instead of octets, you should convert your strings first	1117	pass characters instead of octets, you should convert your strings first
558	to the locale-specific encoding using C<< $term->locale_encode >>.	1118	to the locale-specific encoding using C<< $term->locale_encode >>.
559		1119
		1120	=item $old_events = $term->pty_ev_events ([$new_events])
		1121
		1122	Replaces the event mask of the pty watcher by the given event mask. Can
		1123	be used to suppress input and output handling to the pty/tty. See the
		1124	description of C<< urxvt::timer->events >>. Make sure to always restore
		1125	the previous value.
		1126
		1127	=item $windowid = $term->parent
		1128
		1129	Return the window id of the toplevel window.
		1130
		1131	=item $windowid = $term->vt
		1132
		1133	Return the window id of the terminal window.
		1134
		1135	=item $window_width = $term->width
		1136
		1137	=item $window_height = $term->height
		1138
		1139	=item $font_width = $term->fwidth
		1140
		1141	=item $font_height = $term->fheight
		1142
		1143	=item $font_ascent = $term->fbase
		1144
560	=item $nrow = $term->nrow	1145	=item $terminal_rows = $term->nrow
561		1146
562	=item $ncol = $term->ncol	1147	=item $terminal_columns = $term->ncol
563		1148
564	Return the number of rows/columns of the terminal window (i.e. as	1149	=item $has_focus = $term->focus
565	specified by C<-geometry>, excluding any scrollback).
566		1150
		1151	=item $is_mapped = $term->mapped
		1152
		1153	=item $max_scrollback = $term->saveLines
		1154
		1155	=item $nrow_plus_saveLines = $term->total_rows
		1156
		1157	=item $lines_in_scrollback = $term->nsaved
		1158
		1159	Return various integers describing terminal characteristics.
		1160
		1161	=item $x_display = $term->display_id
		1162
		1163	Return the DISPLAY used by rxvt-unicode.
		1164
		1165	=item $lc_ctype = $term->locale
		1166
		1167	Returns the LC_CTYPE category string used by this rxvt-unicode.
		1168
567	=item $nsaved = $term->nsaved	1169	=item $env = $term->env
568		1170
569	Returns the number of lines in the scrollback buffer.	1171	Returns a copy of the environment in effect for the terminal as a hashref
		1172	similar to C<\%ENV>.
		1173
		1174	=cut
		1175
		1176	sub env {
		1177	if (my $env = $_[0]->_env) {
		1178	+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), @$env }
		1179	} else {
		1180	+{ %ENV }
		1181	}
		1182	}
		1183
		1184	=item $modifiermask = $term->ModLevel3Mask
		1185
		1186	=item $modifiermask = $term->ModMetaMask
		1187
		1188	=item $modifiermask = $term->ModNumLockMask
		1189
		1190	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
		1191	AltGr), the meta key (often Alt) and the num lock key, if applicable.
570		1192
571	=item $view_start = $term->view_start ([$newvalue])	1193	=item $view_start = $term->view_start ([$newvalue])
572		1194
573	Returns the negative row number of the topmost line. Minimum value is	1195	Returns the negative row number of the topmost line. Minimum value is
574	C<0>, which displays the normal terminal contents. Larger values scroll	1196	C<0>, which displays the normal terminal contents. Larger values scroll
…		…
637	about the logical line that row C<$row_number> is part of. It supports the	1259	about the logical line that row C<$row_number> is part of. It supports the
638	following methods:	1260	following methods:
639		1261
640	=over 4	1262	=over 4
641		1263
642	=item $text = $line->t	1264	=item $text = $line->t ([$new_text])
643		1265
644	Returns the full text of the line, similar to C<ROW_t>	1266	Returns or replaces the full text of the line, similar to C<ROW_t>
645		1267
646	=item $rend = $line->r	1268	=item $rend = $line->r ([$new_rend])
647		1269
648	Returns the full rendition array of the line, similar to C<ROW_r>	1270	Returns or replaces the full rendition array of the line, similar to C<ROW_r>
649		1271
650	=item $length = $line->l	1272	=item $length = $line->l
651		1273
652	Returns the length of the line in cells, similar to C<ROW_l>.	1274	Returns the length of the line in cells, similar to C<ROW_l>.
653		1275
…		…
658	Return the row number of the first/last row of the line, respectively.	1280	Return the row number of the first/last row of the line, respectively.
659		1281
660	=item $offset = $line->offset_of ($row, $col)	1282	=item $offset = $line->offset_of ($row, $col)
661		1283
662	Returns the character offset of the given row|col pair within the logical	1284	Returns the character offset of the given row|col pair within the logical
663	line.	1285	line. Works for rows outside the line, too, and returns corresponding
		1286	offsets outside the string.
664		1287
665	=item ($row, $col) = $line->coord_of ($offset)	1288	=item ($row, $col) = $line->coord_of ($offset)
666		1289
667	Translates a string offset into terminal coordinates again.	1290	Translates a string offset into terminal coordinates again.
668		1291
669	=back	1292	=back
670		1293
671	=cut	1294	=cut
672		1295
673	sub urxvt::term::line {	1296	sub line {
674	my ($self, $row) = @_;	1297	my ($self, $row) = @_;
675		1298
676	my $maxrow = $self->nrow - 1;	1299	my $maxrow = $self->nrow - 1;
677		1300
678	my ($beg, $end) = ($row, $row);	1301	my ($beg, $end) = ($row, $row);
…		…
682		1305
683	bless {	1306	bless {
684	term => $self,	1307	term => $self,
685	beg => $beg,	1308	beg => $beg,
686	end => $end,	1309	end => $end,
		1310	ncol => $self->ncol,
687	len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),	1311	len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),
688	}, urxvt::line::	1312	}, urxvt::line::
689	}	1313	}
690		1314
691	sub urxvt::line::t {	1315	sub urxvt::line::t {
692	my ($self) = @_;	1316	my ($self) = @_;
693		1317
		1318	if (@_ > 1)
		1319	{
		1320	$self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
		1321	for $self->{beg} .. $self->{end};
		1322	}
		1323
		1324	defined wantarray &&
694	substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),	1325	substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),
695	0, $self->{len}	1326	0, $self->{len}
696	}	1327	}
697		1328
698	sub urxvt::line::r {	1329	sub urxvt::line::r {
699	my ($self) = @_;	1330	my ($self) = @_;
700		1331
		1332	if (@_ > 1)
		1333	{
		1334	$self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
		1335	for $self->{beg} .. $self->{end};
		1336	}
		1337
		1338	if (defined wantarray) {
701	my $rend = [	1339	my $rend = [
702	map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}	1340	map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}
703	];	1341	];
704	$#$rend = $self->{len} - 1;	1342	$#$rend = $self->{len} - 1;
705	$rend	1343	return $rend;
		1344	}
		1345
		1346	()
706	}	1347	}
707		1348
708	sub urxvt::line::beg { $_[0]{beg} }	1349	sub urxvt::line::beg { $_[0]{beg} }
709	sub urxvt::line::end { $_[0]{end} }	1350	sub urxvt::line::end { $_[0]{end} }
710	sub urxvt::line::l { $_[0]{len} }	1351	sub urxvt::line::l { $_[0]{len} }
711		1352
712	sub urxvt::line::offset_of {	1353	sub urxvt::line::offset_of {
713	my ($self, $row, $col) = @_;	1354	my ($self, $row, $col) = @_;
714		1355
715	($row - $self->{beg}) * $self->{term}->ncol + $col	1356	($row - $self->{beg}) * $self->{ncol} + $col
716	}	1357	}
717		1358
718	sub urxvt::line::coord_of {	1359	sub urxvt::line::coord_of {
719	my ($self, $offset) = @_;	1360	my ($self, $offset) = @_;
720		1361
721	use integer;	1362	use integer;
722		1363
723	(	1364	(
724	$offset / $self->{term}->ncol + $self->{beg},	1365	$offset / $self->{ncol} + $self->{beg},
725	$offset % $self->{term}->ncol	1366	$offset % $self->{ncol}
726	)	1367	)
727	}	1368	}
728		1369
729	=item ($row, $col) = $line->coord_of ($offset)
730	=item $text = $term->special_encode $string	1370	=item $text = $term->special_encode $string
731		1371
732	Converts a perl string into the special encoding used by rxvt-unicode,	1372	Converts a perl string into the special encoding used by rxvt-unicode,
733	where one character corresponds to one screen cell. See	1373	where one character corresponds to one screen cell. See
734	C<< $term->ROW_t >> for details.	1374	C<< $term->ROW_t >> for details.
735		1375
736	=item $string = $term->special_decode $text	1376	=item $string = $term->special_decode $text
737		1377
738	Converts rxvt-unicodes text reprsentation into a perl string. See	1378	Converts rxvt-unicodes text reprsentation into a perl string. See
739	C<< $term->ROW_t >> for details.	1379	C<< $term->ROW_t >> for details.
		1380
		1381	=item $success = $term->grab_button ($button, $modifiermask)
		1382
		1383	Registers a synchronous button grab. See the XGrabButton manpage.
		1384
		1385	=item $success = $term->grab ($eventtime[, $sync])
		1386
		1387	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
		1388	synchronous (C<$sync> is true). Also remembers the grab timestampe.
		1389
		1390	=item $term->allow_events_async
		1391
		1392	Calls XAllowEvents with AsyncBoth for the most recent grab.
		1393
		1394	=item $term->allow_events_sync
		1395
		1396	Calls XAllowEvents with SyncBoth for the most recent grab.
		1397
		1398	=item $term->allow_events_replay
		1399
		1400	Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
		1401	recent grab.
		1402
		1403	=item $term->ungrab
		1404
		1405	Calls XUngrab for the most recent grab. Is called automatically on
		1406	evaluation errors, as it is better to lose the grab in the error case as
		1407	the session.
		1408
		1409	=back
		1410
		1411	=cut
		1412
		1413	package urxvt::popup;
		1414
		1415	=head2 The C<urxvt::popup> Class
		1416
		1417	=over 4
		1418
		1419	=cut
		1420
		1421	sub add_item {
		1422	my ($self, $item) = @_;
		1423
		1424	$item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal};
		1425	$item->{rend}{hover} = "\x1b[0;30;46m" unless exists $item->{rend}{hover};
		1426	$item->{rend}{active} = "\x1b[m" unless exists $item->{rend}{active};
		1427
		1428	$item->{render} ||= sub { $_[0]{text} };
		1429
		1430	push @{ $self->{item} }, $item;
		1431	}
		1432
		1433	=item $popup->add_title ($title)
		1434
		1435	Adds a non-clickable title to the popup.
		1436
		1437	=cut
		1438
		1439	sub add_title {
		1440	my ($self, $title) = @_;
		1441
		1442	$self->add_item ({
		1443	rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
		1444	text => $title,
		1445	activate => sub { },
		1446	});
		1447	}
		1448
		1449	=item $popup->add_separator ([$sepchr])
		1450
		1451	Creates a separator, optionally using the character given as C<$sepchr>.
		1452
		1453	=cut
		1454
		1455	sub add_separator {
		1456	my ($self, $sep) = @_;
		1457
		1458	$sep ||= "=";
		1459
		1460	$self->add_item ({
		1461	rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
		1462	text => "",
		1463	render => sub { $sep x $self->{term}->ncol },
		1464	activate => sub { },
		1465	});
		1466	}
		1467
		1468	=item $popup->add_button ($text, $cb)
		1469
		1470	Adds a clickable button to the popup. C<$cb> is called whenever it is
		1471	selected.
		1472
		1473	=cut
		1474
		1475	sub add_button {
		1476	my ($self, $text, $cb) = @_;
		1477
		1478	$self->add_item ({ type => "button", text => $text, activate => $cb});
		1479	}
		1480
		1481	=item $popup->add_toggle ($text, $cb, $initial_value)
		1482
		1483	Adds a toggle/checkbox item to the popup. Teh callback gets called
		1484	whenever it gets toggled, with a boolean indicating its value as its first
		1485	argument.
		1486
		1487	=cut
		1488
		1489	sub add_toggle {
		1490	my ($self, $text, $cb, $value) = @_;
		1491
		1492	my $item; $item = {
		1493	type => "button",
		1494	text => " $text",
		1495	value => $value,
		1496	render => sub { ($_[0]{value} ? "* " : " ") . $text },
		1497	activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
		1498	};
		1499
		1500	$self->add_item ($item);
		1501	}
		1502
		1503	=item $popup->show
		1504
		1505	Displays the popup (which is initially hidden).
		1506
		1507	=cut
		1508
		1509	sub show {
		1510	my ($self) = @_;
		1511
		1512	local $urxvt::popup::self = $self;
		1513
		1514	my $env = $self->{term}->env;
		1515	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
		1516	delete $env->{LC_ALL};
		1517	$env->{LC_CTYPE} = $self->{term}->locale;
		1518
		1519	urxvt::term->new ($env, $self->{term}->resource ("name"),
		1520	"--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0,
		1521	"--transient-for" => $self->{term}->parent,
		1522	"-display" => $self->{term}->display_id,
		1523	"-pe" => "urxvt-popup")
		1524	or die "unable to create popup window\n";
		1525	}
		1526
		1527	sub DESTROY {
		1528	my ($self) = @_;
		1529
		1530	delete $self->{term}{_destroy}{$self};
		1531	$self->{term}->ungrab;
		1532	}
740		1533
741	=back	1534	=back
742		1535
743	=head2 The C<urxvt::timer> Class	1536	=head2 The C<urxvt::timer> Class
744		1537
…		…
799		1592
800	$term->{socket} = ...	1593	$term->{socket} = ...
801	$term->{iow} = urxvt::iow	1594	$term->{iow} = urxvt::iow
802	->new	1595	->new
803	->fd (fileno $term->{socket})	1596	->fd (fileno $term->{socket})
804	->events (1) # wait for read data	1597	->events (urxvt::EVENT_READ)
805	->start	1598	->start
806	->cb (sub {	1599	->cb (sub {
807	my ($iow, $revents) = @_;	1600	my ($iow, $revents) = @_;
808	# $revents must be 1 here, no need to check	1601	# $revents must be 1 here, no need to check
809	sysread $term->{socket}, my $buf, 8192	1602	sysread $term->{socket}, my $buf, 8192
…		…
826		1619
827	Set the filedescriptor (not handle) to watch.	1620	Set the filedescriptor (not handle) to watch.
828		1621
829	=item $iow = $iow->events ($eventmask)	1622	=item $iow = $iow->events ($eventmask)
830		1623
831	Set the event mask to watch. Bit #0 (value C<1>) enables watching for read	1624	Set the event mask to watch. The only allowed values are
832	data, Bit #1 (value C<2>) enables watching for write data.	1625	C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed
		1626	together, or C<urxvt::EVENT_NONE>.
833		1627
834	=item $iow = $iow->start	1628	=item $iow = $iow->start
835		1629
836	Start watching for requested events on the given handle.	1630	Start watching for requested events on the given handle.
837		1631
…		…
848	This variable controls the verbosity level of the perl extension. Higher	1642	This variable controls the verbosity level of the perl extension. Higher
849	numbers indicate more verbose output.	1643	numbers indicate more verbose output.
850		1644
851	=over 4	1645	=over 4
852		1646
853	=item 0 - only fatal messages	1647	=item == 0 - fatal messages
854		1648
855	=item 3 - script loading and management	1649	=item >= 3 - script loading and management
856		1650
857	=item 10 - all events received	1651	=item >=10 - all called hooks
		1652
		1653	=item >=11 - hook reutrn values
858		1654
859	=back	1655	=back
860		1656
861	=head1 AUTHOR	1657	=head1 AUTHOR
862		1658

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