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Revision 1.50 by root, Sun Jan 8 00:11:38 2006 UTC vs.
Revision 1.175 by root, Sat May 30 08:51:23 2009 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, extension scripts specified via	22	Every time a terminal object gets created, extension scripts specified via
23	the 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	You can disable the embedded perl interpreter by setting both "perl-ext"
		32	and "perl-ext-common" resources to the empty string.
32		33
		34	=head1 PREPACKAGED EXTENSIONS
		35
33	This section describes the extensiosn delivered with this version. You can	36	This section describes the extensions delivered with this release. You can
34	find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.	37	find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.
35		38
36	You can activate them like this:	39	You can activate them like this:
37		40
38	@@RXVT_NAME@@ -pe <extensionname>	41	@@RXVT_NAME@@ -pe <extensionname>
39		42
		43	Or by adding them to the resource for extensions loaded by default:
		44
		45	URxvt.perl-ext-common: default,selection-autotransform
		46
40	=over 4	47	=over 4
41		48
42	=item selection	49	=item selection (enabled by default)
43		50
44	Intelligent selection. This extension tries to be more intelligent when	51	(More) intelligent selection. This extension tries to be more intelligent
45	the user extends selections (double-click). Right now, it tries to select	52	when the user extends selections (double-click and further clicks). Right
46	urls and complete shell-quoted arguments, which is very convenient, too,	53	now, it tries to select words, urls and complete shell-quoted
47	if your F<ls> supports C<--quoting-style=shell>.	54	arguments, which is very convenient, too, if your F<ls> supports
		55	C<--quoting-style=shell>.
48		56
49	It also offers the following bindable event:	57	A double-click usually selects the word under the cursor, further clicks
		58	will enlarge the selection.
		59
		60	The selection works by trying to match a number of regexes and displaying
		61	them in increasing order of length. You can add your own regexes by
		62	specifying resources of the form:
		63
		64	URxvt.selection.pattern-0: perl-regex
		65	URxvt.selection.pattern-1: perl-regex
		66	...
		67
		68	The index number (0, 1...) must not have any holes, and each regex must
		69	contain at least one pair of capturing parentheses, which will be used for
		70	the match. For example, the following adds a regex that matches everything
		71	between two vertical bars:
		72
		73	URxvt.selection.pattern-0: \\|([^|]+)\\|
		74
		75	Another example: Programs I use often output "absolute path: " at the
		76	beginning of a line when they process multiple files. The following
		77	pattern matches the filename (note, there is a single space at the very
		78	end):
		79
		80	URxvt.selection.pattern-0: ^(/[^:]+):\
		81
		82	You can look at the source of the selection extension to see more
		83	interesting uses, such as parsing a line from beginning to end.
		84
		85	This extension also offers following bindable keyboard commands:
50		86
51	=over 4	87	=over 4
52		88
53	=item rot13	89	=item rot13
54		90
…		…
56		92
57	URxvt.keysym.C-M-r: perl:selection:rot13	93	URxvt.keysym.C-M-r: perl:selection:rot13
58		94
59	=back	95	=back
60		96
61	=item digital-clock	97	=item option-popup (enabled by default)
62		98
63	Displays a digital clock using the built-in overlay.	99	Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at
		100	runtime.
64		101
65	=item mark-urls	102	Other extensions can extend this popup menu by pushing a code reference
		103	onto C<@{ $term->{option_popup_hook} }>, which gets called whenever the
		104	popup is being displayed.
66		105
		106	Its sole argument is the popup menu, which can be modified. It should
		107	either return nothing or a string, the initial boolean value and a code
		108	reference. The string will be used as button text and the code reference
		109	will be called when the toggle changes, with the new boolean value as
		110	first argument.
		111
		112	The following will add an entry C<myoption> that changes
		113	C<< $self->{myoption} >>:
		114
		115	push @{ $self->{term}{option_popup_hook} }, sub {
		116	("my option" => $myoption, sub { $self->{myoption} = $_[0] })
		117	};
		118
		119	=item selection-popup (enabled by default)
		120
		121	Binds a popup menu to Ctrl-Button3 that lets you convert the selection
		122	text into various other formats/action (such as uri unescaping, perl
		123	evaluation, web-browser starting etc.), depending on content.
		124
		125	Other extensions can extend this popup menu by pushing a code reference
		126	onto C<@{ $term->{selection_popup_hook} }>, which gets called whenever the
		127	popup is being displayed.
		128
		129	Its sole argument is the popup menu, which can be modified. The selection
		130	is in C<$_>, which can be used to decide whether to add something or not.
		131	It should either return nothing or a string and a code reference. The
		132	string will be used as button text and the code reference will be called
		133	when the button gets activated and should transform C<$_>.
		134
		135	The following will add an entry C<a to b> that transforms all C<a>s in
		136	the selection to C<b>s, but only if the selection currently contains any
		137	C<a>s:
		138
		139	push @{ $self->{term}{selection_popup_hook} }, sub {
		140	/a/ ? ("a to b" => sub { s/a/b/g }
		141	: ()
		142	};
		143
		144	=item searchable-scrollback<hotkey> (enabled by default)
		145
		146	Adds regex search functionality to the scrollback buffer, triggered
		147	by a hotkey (default: C<M-s>). While in search mode, normal terminal
		148	input/output is suspended and a regex is displayed at the bottom of the
		149	screen.
		150
		151	Inputting characters appends them to the regex and continues incremental
		152	search. C<BackSpace> removes a character from the regex, C<Up> and C<Down>
		153	search upwards/downwards in the scrollback buffer, C<End> jumps to the
		154	bottom. C<Escape> leaves search mode and returns to the point where search
		155	was started, while C<Enter> or C<Return> stay at the current position and
		156	additionally stores the first match in the current line into the primary
		157	selection if the C<Shift> modifier is active.
		158
		159	The regex defaults to "(?i)", resulting in a case-insensitive search. To
		160	get a case-sensitive search you can delete this prefix using C<BackSpace>
		161	or simply use an uppercase character which removes the "(?i)" prefix.
		162
		163	See L<perlre> for more info about perl regular expression syntax.
		164
		165	=item readline (enabled by default)
		166
		167	A support package that tries to make editing with readline easier. At
		168	the moment, it reacts to clicking shift-left mouse button by trying to
		169	move the text cursor to this position. It does so by generating as many
		170	cursor-left or cursor-right keypresses as required (this only works
		171	for programs that correctly support wide characters).
		172
		173	To avoid too many false positives, this is only done when:
		174
		175	=over 4
		176
		177	=item - the tty is in ICANON state.
		178
		179	=item - the text cursor is visible.
		180
		181	=item - the primary screen is currently being displayed.
		182
		183	=item - the mouse is on the same (multi-row-) line as the text cursor.
		184
		185	=back
		186
		187	The normal selection mechanism isn't disabled, so quick successive clicks
		188	might interfere with selection creation in harmless ways.
		189
		190	=item selection-autotransform
		191
		192	This selection allows you to do automatic transforms on a selection
		193	whenever a selection is made.
		194
		195	It works by specifying perl snippets (most useful is a single C<s///>
		196	operator) that modify C<$_> as resources:
		197
		198	URxvt.selection-autotransform.0: transform
		199	URxvt.selection-autotransform.1: transform
		200	...
		201
		202	For example, the following will transform selections of the form
		203	C<filename:number>, often seen in compiler messages, into C<vi +$filename
		204	$word>:
		205
		206	URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
		207
		208	And this example matches the same,but replaces it with vi-commands you can
		209	paste directly into your (vi :) editor:
		210
		211	URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
		212
		213	Of course, this can be modified to suit your needs and your editor :)
		214
		215	To expand the example above to typical perl error messages ("XXX at
		216	FILENAME line YYY."), you need a slightly more elaborate solution:
		217
		218	URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
		219	URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
		220
		221	The first line tells the selection code to treat the unchanging part of
		222	every error message as a selection pattern, and the second line transforms
		223	the message into vi commands to load the file.
		224
		225	=item tabbed
		226
		227	This transforms the terminal into a tabbar with additional terminals, that
		228	is, it implements what is commonly referred to as "tabbed terminal". The topmost line
		229	displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
		230	button per tab.
		231
		232	Clicking a button will activate that tab. Pressing B<Shift-Left> and
		233	B<Shift-Right> will switch to the tab left or right of the current one,
		234	while B<Shift-Down> creates a new tab.
		235
		236	The tabbar itself can be configured similarly to a normal terminal, but
		237	with a resource class of C<URxvt.tabbed>. In addition, it supports the
		238	following four resources (shown with defaults):
		239
		240	URxvt.tabbed.tabbar-fg: <colour-index, default 3>
		241	URxvt.tabbed.tabbar-bg: <colour-index, default 0>
		242	URxvt.tabbed.tab-fg: <colour-index, default 0>
		243	URxvt.tabbed.tab-bg: <colour-index, default 1>
		244
		245	See I<COLOR AND GRAPHICS> in the @@RXVT_NAME@@(1) manpage for valid
		246	indices.
		247
		248	=item matcher
		249
67	Uses per-line display filtering (C<on_line_update>) to underline urls.	250	Uses per-line display filtering (C<on_line_update>) to underline text
		251	matching a certain pattern and make it clickable. When clicked with the
		252	mouse button specified in the C<matcher.button> resource (default 2, or
		253	middle), the program specified in the C<matcher.launcher> resource
		254	(default, the C<urlLauncher> resource, C<sensible-browser>) will be started
		255	with the matched text as first argument. The default configuration is
		256	suitable for matching URLs and launching a web browser, like the
		257	former "mark-urls" extension.
		258
		259	The default pattern to match URLs can be overridden with the
		260	C<matcher.pattern.0> resource, and additional patterns can be specified
		261	with numbered patterns, in a manner similar to the "selection" extension.
		262	The launcher can also be overridden on a per-pattern basis.
		263
		264	It is possible to activate the most recently seen match from the keyboard.
		265	Simply bind a keysym to "perl:matcher" as seen in the example below.
		266
		267	Example configuration:
		268
		269	URxvt.perl-ext: default,matcher
		270	URxvt.urlLauncher: sensible-browser
		271	URxvt.keysym.C-Delete: perl:matcher
		272	URxvt.matcher.button: 1
		273	URxvt.matcher.pattern.1: \\bwww\\.[\\w-]+\\.[\\w./?&@#-]*[\\w/-]
		274	URxvt.matcher.pattern.2: \\B(/\\S+?):(\\d+)(?=:|$)
		275	URxvt.matcher.launcher.2: gvim +$2 $1
		276
		277	=item xim-onthespot
		278
		279	This (experimental) perl extension implements OnTheSpot editing. It does
		280	not work perfectly, and some input methods don't seem to work well with
		281	OnTheSpot editing in general, but it seems to work at least for SCIM and
		282	kinput2.
		283
		284	You enable it by specifying this extension and a preedit style of
		285	C<OnTheSpot>, i.e.:
		286
		287	@@RXVT_NAME@@ -pt OnTheSpot -pe xim-onthespot
		288
		289	=item kuake<hotkey>
		290
		291	A very primitive quake-console-like extension. It was inspired by a
		292	description of how the programs C<kuake> and C<yakuake> work: Whenever the
		293	user presses a global accelerator key (by default C<F10>), the terminal
		294	will show or hide itself. Another press of the accelerator key will hide
		295	or show it again.
		296
		297	Initially, the window will not be shown when using this extension.
		298
		299	This is useful if you need a single terminal that is not using any desktop
		300	space most of the time but is quickly available at the press of a key.
		301
		302	The accelerator key is grabbed regardless of any modifiers, so this
		303	extension will actually grab a physical key just for this function.
		304
		305	If you want a quake-like animation, tell your window manager to do so
		306	(fvwm can do it).
		307
		308	=item overlay-osc
		309
		310	This extension implements some OSC commands to display timed popups on the
		311	screen - useful for status displays from within scripts. You have to read
		312	the sources for more info.
68		313
69	=item block-graphics-to-ascii	314	=item block-graphics-to-ascii
70		315
71	A not very useful example of filtering all text output to the terminal,	316	A not very useful example of filtering all text output to the terminal
72	by replacing all line-drawing characters (U+2500 .. U+259F) by a	317	by replacing all line-drawing characters (U+2500 .. U+259F) by a
73	similar-looking ascii character.	318	similar-looking ascii character.
		319
		320	=item digital-clock
		321
		322	Displays a digital clock using the built-in overlay.
		323
		324	=item remote-clipboard
		325
		326	Somewhat of a misnomer, this extension adds two menu entries to the
		327	selection popup that allows one to run external commands to store the
		328	selection somewhere and fetch it again.
		329
		330	We use it to implement a "distributed selection mechanism", which just
		331	means that one command uploads the file to a remote server, and another
		332	reads it.
		333
		334	The commands can be set using the C<URxvt.remote-selection.store> and
		335	C<URxvt.remote-selection.fetch> resources. The first should read the
		336	selection to store from STDIN (always in UTF-8), the second should provide
		337	the selection data on STDOUT (also in UTF-8).
		338
		339	The defaults (which are likely useless to you) use rsh and cat:
		340
		341	URxvt.remote-selection.store: rsh ruth 'cat >/tmp/distributed-selection'
		342	URxvt.remote-selection.fetch: rsh ruth 'cat /tmp/distributed-selection'
		343
		344	=item selection-pastebin
		345
		346	This is a little rarely useful extension that Uploads the selection as
		347	textfile to a remote site (or does other things). (The implementation is
		348	not currently secure for use in a multiuser environment as it writes to
		349	F</tmp> directly.).
		350
		351	It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
		352	i.e.
		353
		354	URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
		355
		356	Pressing this combination runs a command with C<%> replaced by the name of
		357	the textfile. This command can be set via a resource:
		358
		359	URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
		360
		361	And the default is likely not useful to anybody but the few people around
		362	here :)
		363
		364	The name of the textfile is the hex encoded md5 sum of the selection, so
		365	the same content should lead to the same filename.
		366
		367	After a successful upload the selection will be replaced by the text given
		368	in the C<selection-pastebin-url> resource (again, the % is the placeholder
		369	for the filename):
		370
		371	URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
		372
		373	I<Note to xrdb users:> xrdb uses the C preprocessor, which might interpret
		374	the double C</> characters as comment start. Use C<\057\057> instead,
		375	which works regardless of wether xrdb is used to parse the resource file
		376	or not.
		377
		378	=item macosx-pastebin and macosx-pastebin-native
		379
		380	These two modules implement an extended clipboard for Mac OS X. They are
		381	used like this:
		382
		383	URxvt.perl-ext-common: default,macosx-clipboard
		384	URxvt.keysym.M-c: perl:macosx-clipboard:copy
		385	URxvt.keysym.M-v: perl:macosx-clipboard:paste
		386
		387	The difference between them is that the native variant requires a
		388	perl from apple's devkit or so, and C<maxosx-pastebin> requires the
		389	C<Mac::Pasteboard> module, works with other perls, has fewer bugs, is
		390	simpler etc. etc.
74		391
75	=item example-refresh-hooks	392	=item example-refresh-hooks
76		393
77	Displays a very simple digital clock in the upper right corner of the	394	Displays a very simple digital clock in the upper right corner of the
78	window. Illustrates overwriting the refresh callbacks to create your own	395	window. Illustrates overwriting the refresh callbacks to create your own
79	overlays or changes.	396	overlays or changes.
80		397
81	=back	398	=back
		399
		400	=head1 API DOCUMENTATION
82		401
83	=head2 General API Considerations	402	=head2 General API Considerations
84		403
85	All objects (such as terminals, time watchers etc.) are typical	404	All objects (such as terminals, time watchers etc.) are typical
86	reference-to-hash objects. The hash can be used to store anything you	405	reference-to-hash objects. The hash can be used to store anything you
…		…
99	=over 4	418	=over 4
100		419
101	=item $text	420	=item $text
102		421
103	Rxvt-unicodes special way of encoding text, where one "unicode" character	422	Rxvt-unicodes special way of encoding text, where one "unicode" character
104	always represents one screen cell. See L<row_t> for a discussion of this format.	423	always represents one screen cell. See L<ROW_t> for a discussion of this format.
105		424
106	=item $string	425	=item $string
107		426
108	A perl text string, with an emphasis on I<text>. It can store all unicode	427	A perl text string, with an emphasis on I<text>. It can store all unicode
109	characters and is to be distinguished with text encoded in a specific	428	characters and is to be distinguished with text encoded in a specific
…		…
114	Either binary data or - more common - a text string encoded in a	433	Either binary data or - more common - a text string encoded in a
115	locale-specific way.	434	locale-specific way.
116		435
117	=back	436	=back
118		437
		438	=head2 Extension Objects
		439
		440	Every perl extension is a perl class. A separate perl object is created
		441	for each terminal, and each terminal has its own set of extenion objects,
		442	which are passed as the first parameter to hooks. So extensions can use
		443	their C<$self> object without having to think about clashes with other
		444	extensions or other terminals, with the exception of methods and members
		445	that begin with an underscore character C<_>: these are reserved for
		446	internal use.
		447
		448	Although it isn't a C<urxvt::term> object, you can call all methods of the
		449	C<urxvt::term> class on this object.
		450
		451	It has the following methods and data members:
		452
		453	=over 4
		454
		455	=item $urxvt_term = $self->{term}
		456
		457	Returns the C<urxvt::term> object associated with this instance of the
		458	extension. This member I<must not> be changed in any way.
		459
		460	=item $self->enable ($hook_name => $cb, [$hook_name => $cb..])
		461
		462	Dynamically enable the given hooks (named without the C<on_> prefix) for
		463	this extension, replacing any previous hook. This is useful when you want
		464	to overwrite time-critical hooks only temporarily.
		465
		466	=item $self->disable ($hook_name[, $hook_name..])
		467
		468	Dynamically disable the given hooks.
		469
		470	=back
		471
119	=head2 Hooks	472	=head2 Hooks
120		473
121	The following subroutines can be declared in extension files, and will be	474	The following subroutines can be declared in extension files, and will be
122	called whenever the relevant event happens.	475	called whenever the relevant event happens.
123		476
124	The first argument passed to them is an object private to each terminal	477	The first argument passed to them is an extension object as described in
125	and extension package. You can call all C<urxvt::term> methods on it, but	478	the in the C<Extension Objects> section.
126	its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
127	object that is shared between all packages is stored in the C<term>
128	member. It is, however, blessed intot he package of the extension script,
129	so for all practical purposes you can treat an extension script as a class.
130		479
131	All of them must return a boolean value. If it is true, then the event	480	B<All> of these hooks must return a boolean value. If any of the called
132	counts as being I<consumed>, and the invocation of other hooks is skipped,	481	hooks returns true, then the event counts as being I<consumed>, and the
133	and the relevant action might not be carried out by the C++ code.	482	relevant action might not be carried out by the C++ code.
134		483
135	When in doubt, return a false value (preferably C<()>).	484	I<< When in doubt, return a false value (preferably C<()>). >>
136		485
137	=over 4	486	=over 4
138		487
139	=item on_init $term	488	=item on_init $term
140		489
141	Called after a new terminal object has been initialized, but before	490	Called after a new terminal object has been initialized, but before
142	windows are created or the command gets run. Most methods are unsafe to	491	windows are created or the command gets run. Most methods are unsafe to
143	call or deliver senseless data, as terminal size and other characteristics	492	call or deliver senseless data, as terminal size and other characteristics
144	have not yet been determined. You can safely query and change resources,	493	have not yet been determined. You can safely query and change resources
145	though.	494	and options, though. For many purposes the C<on_start> hook is a better
		495	place.
		496
		497	=item on_start $term
		498
		499	Called at the very end of initialisation of a new terminal, just before
		500	trying to map (display) the toplevel and returning to the main loop.
		501
		502	=item on_destroy $term
		503
		504	Called whenever something tries to destroy terminal, when the terminal is
		505	still fully functional (not for long, though).
146		506
147	=item on_reset $term	507	=item on_reset $term
148		508
149	Called after the screen is "reset" for any reason, such as resizing or	509	Called after the screen is "reset" for any reason, such as resizing or
150	control sequences. Here is where you can react on changes to size-related	510	control sequences. Here is where you can react on changes to size-related
151	variables.	511	variables.
152		512
153	=item on_start $term	513	=item on_child_start $term, $pid
154		514
155	Called at the very end of initialisation of a new terminal, just before	515	Called just after the child process has been C<fork>ed.
156	returning to the mainloop.	516
		517	=item on_child_exit $term, $status
		518
		519	Called just after the child process has exited. C<$status> is the status
		520	from C<waitpid>.
157		521
158	=item on_sel_make $term, $eventtime	522	=item on_sel_make $term, $eventtime
159		523
160	Called whenever a selection has been made by the user, but before the	524	Called whenever a selection has been made by the user, but before the
161	selection text is copied, so changes to the beginning, end or type of the	525	selection text is copied, so changes to the beginning, end or type of the
…		…
168		532
169	Called whenever a selection has been copied, but before the selection is	533	Called whenever a selection has been copied, but before the selection is
170	requested from the server. The selection text can be queried and changed	534	requested from the server. The selection text can be queried and changed
171	by calling C<< $term->selection >>.	535	by calling C<< $term->selection >>.
172		536
173	Returning a true value aborts selection grabbing. It will still be hilighted.	537	Returning a true value aborts selection grabbing. It will still be highlighted.
174		538
175	=item on_sel_extend $term	539	=item on_sel_extend $term
176		540
177	Called whenever the user tries to extend the selection (e.g. with a double	541	Called whenever the user tries to extend the selection (e.g. with a double
178	click) and is either supposed to return false (normal operation), or	542	click) and is either supposed to return false (normal operation), or
179	should extend the selection itelf and return true to suppress the built-in	543	should extend the selection itself and return true to suppress the built-in
180	processing.	544	processing. This can happen multiple times, as long as the callback
		545	returns true, it will be called on every further click by the user and is
		546	supposed to enlarge the selection more and more, if possible.
181		547
182	See the F<selection> example extension.	548	See the F<selection> example extension.
183		549
184	=item on_view_change $term, $offset	550	=item on_view_change $term, $offset
185		551
186	Called whenever the view offset changes, i..e the user or program	552	Called whenever the view offset changes, i.e. the user or program
187	scrolls. Offset C<0> means display the normal terminal, positive values	553	scrolls. Offset C<0> means display the normal terminal, positive values
188	show this many lines of scrollback.	554	show this many lines of scrollback.
189		555
190	=item on_scroll_back $term, $lines, $saved	556	=item on_scroll_back $term, $lines, $saved
191		557
…		…
195		561
196	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,	562	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
197	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total	563	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
198	number of lines that will be in the scrollback buffer.	564	number of lines that will be in the scrollback buffer.
199		565
200	=item on_tty_activity $term *NYI*
201
202	Called whenever the program(s) running in the urxvt window send output.
203
204	=item on_osc_seq $term, $string	566	=item on_osc_seq $term, $op, $args, $resp
		567
		568	Called on every OSC sequence and can be used to suppress it or modify its
		569	behaviour. The default should be to return an empty list. A true value
		570	suppresses execution of the request completely. Make sure you don't get
		571	confused by recursive invocations when you output an OSC sequence within
		572	this callback.
		573
		574	C<on_osc_seq_perl> should be used for new behaviour.
		575
		576	=item on_osc_seq_perl $term, $args, $resp
205		577
206	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =	578	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
207	operating system command) is processed. Cursor position and other state	579	operating system command) is processed. Cursor position and other state
208	information is up-to-date when this happens. For interoperability, the	580	information is up-to-date when this happens. For interoperability, the
209	string should start with the extension name and a colon, to distinguish	581	string should start with the extension name (sans -osc) and a semicolon,
210	it from commands for other extensions, and this might be enforced in the	582	to distinguish it from commands for other extensions, and this might be
211	future.	583	enforced in the future.
		584
		585	For example, C<overlay-osc> uses this:
		586
		587	sub on_osc_seq_perl {
		588	my ($self, $osc, $resp) = @_;
		589
		590	return unless $osc =~ s/^overlay;//;
		591
		592	... process remaining $osc string
		593	}
212		594
213	Be careful not ever to trust (in a security sense) the data you receive,	595	Be careful not ever to trust (in a security sense) the data you receive,
214	as its source can not easily be controleld (e-mail content, messages from	596	as its source can not easily be controlled (e-mail content, messages from
215	other users on the same system etc.).	597	other users on the same system etc.).
		598
		599	For responses, C<$resp> contains the end-of-args separator used by the
		600	sender.
216		601
217	=item on_add_lines $term, $string	602	=item on_add_lines $term, $string
218		603
219	Called whenever text is about to be output, with the text as argument. You	604	Called whenever text is about to be output, with the text as argument. You
220	can filter/change and output the text yourself by returning a true value	605	can filter/change and output the text yourself by returning a true value
221	and calling C<< $term->scr_add_lines >> yourself. Please note that this	606	and calling C<< $term->scr_add_lines >> yourself. Please note that this
222	might be very slow, however, as your hook is called for B<all> text being	607	might be very slow, however, as your hook is called for B<all> text being
223	output.	608	output.
224		609
		610	=item on_tt_write $term, $octets
		611
		612	Called whenever some data is written to the tty/pty and can be used to
		613	suppress or filter tty input.
		614
225	=item on_line_update $term, $row	615	=item on_line_update $term, $row
226		616
227	Called whenever a line was updated or changed. Can be used to filter	617	Called whenever a line was updated or changed. Can be used to filter
228	screen output (e.g. underline urls or other useless stuff). Only lines	618	screen output (e.g. underline urls or other useless stuff). Only lines
229	that are being shown will be filtered, and, due to performance reasons,	619	that are being shown will be filtered, and, due to performance reasons,
…		…
236	later with the already-modified line (e.g. if unrelated parts change), so	626	later with the already-modified line (e.g. if unrelated parts change), so
237	you cannot just toggle rendition bits, but only set them.	627	you cannot just toggle rendition bits, but only set them.
238		628
239	=item on_refresh_begin $term	629	=item on_refresh_begin $term
240		630
241	Called just before the screen gets redrawn. Can be used for overlay	631	Called just before the screen gets redrawn. Can be used for overlay or
242	or similar effects by modify terminal contents in refresh_begin, and	632	similar effects by modifying the terminal contents in refresh_begin, and
243	restoring them in refresh_end. The built-in overlay and selection display	633	restoring them in refresh_end. The built-in overlay and selection display
244	code is run after this hook, and takes precedence.	634	code is run after this hook, and takes precedence.
245		635
246	=item on_refresh_end $term	636	=item on_refresh_end $term
247		637
248	Called just after the screen gets redrawn. See C<on_refresh_begin>.	638	Called just after the screen gets redrawn. See C<on_refresh_begin>.
249		639
250	=item on_keyboard_command $term, $string	640	=item on_user_command $term, $string
251		641
252	Called whenever the user presses a key combination that has a	642	Called whenever a user-configured event is being activated (e.g. via
253	C<perl:string> action bound to it (see description of the B<keysym>	643	a C<perl:string> action bound to a key, see description of the B<keysym>
254	resource in the @@RXVT_NAME@@(1) manpage).	644	resource in the @@RXVT_NAME@@(1) manpage).
		645
		646	The event is simply the action string. This interface is assumed to change
		647	slightly in the future.
		648
		649	=item on_resize_all_windows $tern, $new_width, $new_height
		650
		651	Called just after the new window size has been calculated, but before
		652	windows are actually being resized or hints are being set. If this hook
		653	returns TRUE, setting of the window hints is being skipped.
		654
		655	=item on_x_event $term, $event
		656
		657	Called on every X event received on the vt window (and possibly other
		658	windows). Should only be used as a last resort. Most event structure
		659	members are not passed.
		660
		661	=item on_root_event $term, $event
		662
		663	Like C<on_x_event>, but is called for events on the root window.
255		664
256	=item on_focus_in $term	665	=item on_focus_in $term
257		666
258	Called whenever the window gets the keyboard focus, before rxvt-unicode	667	Called whenever the window gets the keyboard focus, before rxvt-unicode
259	does focus in processing.	668	does focus in processing.
260		669
261	=item on_focus_out $term	670	=item on_focus_out $term
262		671
263	Called wheneever the window loses keyboard focus, before rxvt-unicode does	672	Called whenever the window loses keyboard focus, before rxvt-unicode does
264	focus out processing.	673	focus out processing.
265		674
		675	=item on_configure_notify $term, $event
		676
		677	=item on_property_notify $term, $event
		678
266	=item on_key_press $term, $event, $octets	679	=item on_key_press $term, $event, $keysym, $octets
267		680
268	=item on_key_release $term, $event	681	=item on_key_release $term, $event, $keysym
269		682
270	=item on_button_press $term, $event	683	=item on_button_press $term, $event
271		684
272	=item on_button_release $term, $event	685	=item on_button_release $term, $event
273		686
…		…
279		692
280	Called whenever the corresponding X event is received for the terminal If	693	Called whenever the corresponding X event is received for the terminal If
281	the hook returns true, then the even will be ignored by rxvt-unicode.	694	the hook returns true, then the even will be ignored by rxvt-unicode.
282		695
283	The event is a hash with most values as named by Xlib (see the XEvent	696	The event is a hash with most values as named by Xlib (see the XEvent
284	manpage), with the additional members C<row> and C<col>, which are the row	697	manpage), with the additional members C<row> and C<col>, which are the
285	and column under the mouse cursor.	698	(real, not screen-based) row and column under the mouse cursor.
286		699
287	C<on_key_press> additionally receives the string rxvt-unicode would	700	C<on_key_press> additionally receives the string rxvt-unicode would
288	output, if any, in locale-specific encoding.	701	output, if any, in locale-specific encoding.
289		702
290	subwindow.	703	subwindow.
291		704
		705	=item on_client_message $term, $event
		706
		707	=item on_wm_protocols $term, $event
		708
		709	=item on_wm_delete_window $term, $event
		710
		711	Called when various types of ClientMessage events are received (all with
		712	format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
		713
292	=back	714	=back
293		715
		716	=cut
		717
		718	package urxvt;
		719
		720	use utf8;
		721	use strict;
		722	use Carp ();
		723	use Scalar::Util ();
		724	use List::Util ();
		725
		726	our $VERSION = 1;
		727	our $TERM;
		728	our @TERM_INIT;
		729	our @TERM_EXT;
		730	our @HOOKNAME;
		731	our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
		732	our %OPTION;
		733
		734	our $LIBDIR;
		735	our $RESNAME;
		736	our $RESCLASS;
		737	our $RXVTNAME;
		738
		739	our $NOCHAR = chr 0xffff;
		740
294	=head2 Variables in the C<urxvt> Package	741	=head2 Variables in the C<urxvt> Package
295		742
296	=over 4	743	=over 4
		744
		745	=item $urxvt::LIBDIR
		746
		747	The rxvt-unicode library directory, where, among other things, the perl
		748	modules and scripts are stored.
		749
		750	=item $urxvt::RESCLASS, $urxvt::RESCLASS
		751
		752	The resource class and name rxvt-unicode uses to look up X resources.
		753
		754	=item $urxvt::RXVTNAME
		755
		756	The basename of the installed binaries, usually C<urxvt>.
297		757
298	=item $urxvt::TERM	758	=item $urxvt::TERM
299		759
300	The current terminal. This variable stores the current C<urxvt::term>	760	The current terminal. This variable stores the current C<urxvt::term>
301	object, whenever a callback/hook is executing.	761	object, whenever a callback/hook is executing.
302		762
		763	=item @urxvt::TERM_INIT
		764
		765	All code references in this array will be called as methods of the next newly
		766	created C<urxvt::term> object (during the C<on_init> phase). The array
		767	gets cleared before the code references that were in it are being executed,
		768	so references can push themselves onto it again if they so desire.
		769
		770	This complements to the perl-eval command line option, but gets executed
		771	first.
		772
		773	=item @urxvt::TERM_EXT
		774
		775	Works similar to C<@TERM_INIT>, but contains perl package/class names, which
		776	get registered as normal extensions after calling the hooks in C<@TERM_INIT>
		777	but before other extensions. Gets cleared just like C<@TERM_INIT>.
		778
303	=back	779	=back
304		780
305	=head2 Functions in the C<urxvt> Package	781	=head2 Functions in the C<urxvt> Package
306		782
307	=over 4	783	=over 4
308
309	=item $term = new urxvt [arg...]
310
311	Creates a new terminal, very similar as if you had started it with
312	C<system $binfile, arg...>. Croaks (and probably outputs an error message)
313	if the new instance couldn't be created. Returns C<undef> if the new
314	instance didn't initialise perl, and the terminal object otherwise. The
315	C<init> and C<start> hooks will be called during the call.
316		784
317	=item urxvt::fatal $errormessage	785	=item urxvt::fatal $errormessage
318		786
319	Fatally aborts execution with the given error message. Avoid at all	787	Fatally aborts execution with the given error message. Avoid at all
320	costs! The only time this is acceptable is when the terminal process	788	costs! The only time this is acceptable is when the terminal process
…		…
327	that calls this function.	795	that calls this function.
328		796
329	Using this function has the advantage that its output ends up in the	797	Using this function has the advantage that its output ends up in the
330	correct place, e.g. on stderr of the connecting urxvtc client.	798	correct place, e.g. on stderr of the connecting urxvtc client.
331		799
		800	Messages have a size limit of 1023 bytes currently.
		801
		802	=item @terms = urxvt::termlist
		803
		804	Returns all urxvt::term objects that exist in this process, regardless of
		805	whether they are started, being destroyed etc., so be careful. Only term
		806	objects that have perl extensions attached will be returned (because there
		807	is no urxvt::term objet associated with others).
		808
332	=item $time = urxvt::NOW	809	=item $time = urxvt::NOW
333		810
334	Returns the "current time" (as per the event loop).	811	Returns the "current time" (as per the event loop).
335		812
336	=item urxvt::CurrentTime	813	=item urxvt::CurrentTime
337		814
338	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,	815	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
339	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,	816	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
340	Button4Mask, Button5Mask, AnyModifier	817	Button4Mask, Button5Mask, AnyModifier
341		818
		819	=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
		820	ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
		821	PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
		822	Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
		823	KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
		824	ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
		825	FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
		826
		827	=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
		828	EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
		829	GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
		830	UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
		831	ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
		832	CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
		833	SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
		834
342	Various constants for use in X events.	835	Various constants for use in X calls and event processing.
343		836
344	=back	837	=back
345		838
346	=head2 RENDITION	839	=head2 RENDITION
347		840
…		…
374		867
375	=item $background = urxvt::GET_BASEBG $rend	868	=item $background = urxvt::GET_BASEBG $rend
376		869
377	Return the foreground/background colour index, respectively.	870	Return the foreground/background colour index, respectively.
378		871
379	=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)	872	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
380		873
381	=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)	874	=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
		875
		876	=item $rend = urxvt::SET_COLOR $rend, $new_fg, $new_bg
382		877
383	Replace the foreground/background colour in the rendition mask with the	878	Replace the foreground/background colour in the rendition mask with the
384	specified one.	879	specified one.
385		880
386	=item $value = urxvt::GET_CUSTOM ($rend)	881	=item $value = urxvt::GET_CUSTOM $rend
387		882
388	Return the "custom" value: Every rendition has 5 bits for use by	883	Return the "custom" value: Every rendition has 5 bits for use by
389	extensions. They can be set and changed as you like and are initially	884	extensions. They can be set and changed as you like and are initially
390	zero.	885	zero.
391		886
392	=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)	887	=item $rend = urxvt::SET_CUSTOM $rend, $new_value
393		888
394	Change the custom value.	889	Change the custom value.
395		890
396	=back	891	=back
397		892
398	=cut	893	=cut
399		894
400	package urxvt;
401
402	use utf8;
403	use strict;
404	use Scalar::Util ();
405	use List::Util ();
406
407	our $TERM;
408	our @HOOKNAME;
409	our %OPTION;
410	our $LIBDIR;
411
412	BEGIN {	895	BEGIN {
413	urxvt->bootstrap;
414
415	# overwrite perl's warn	896	# overwrite perl's warn
416	*CORE::GLOBAL::warn = sub {	897	*CORE::GLOBAL::warn = sub {
417	my $msg = join "", @_;	898	my $msg = join "", @_;
418	$msg .= "\n"	899	$msg .= "\n"
419	unless $msg =~ /\n$/;	900	unless $msg =~ /\n$/;
420	urxvt::warn ($msg);	901	urxvt::warn ($msg);
421	};	902	};
422	}	903	}
423		904
424	my @hook_count;	905	no warnings 'utf8';
		906
425	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};	907	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
426		908
427	sub verbose {	909	sub verbose {
428	my ($level, $msg) = @_;	910	my ($level, $msg) = @_;
429	warn "$msg\n" if $level <= $verbosity;	911	warn "$msg\n" if $level <= $verbosity;
430	}	912	}
431		913
432	# find on_xxx subs in the package and register them
433	# as hooks
434	sub register_package($) {
435	my ($pkg) = @_;
436
437	for my $htype (0.. $#HOOKNAME) {
438	my $name = $HOOKNAME[$htype];
439
440	my $ref = $pkg->can ("on_" . lc $name)
441	or next;
442
443	$TERM->{_hook}[$htype]{$pkg} = $ref;
444	$hook_count[$htype]++
445	or set_should_invoke $htype, 1;
446	}
447	}
448
449	my $extension_pkg = "extension0000";
450	my %extension_pkg;	914	my %extension_pkg;
451		915
452	# load a single script into its own package, once only	916	# load a single script into its own package, once only
453	sub extension_package($) {	917	sub extension_package($) {
454	my ($path) = @_;	918	my ($path) = @_;
455		919
456	$extension_pkg{$path} ||= do {	920	$extension_pkg{$path} ||= do {
457	my $pkg = "urxvt::" . ($extension_pkg++);	921	$path =~ /([^\/\\]+)$/;
		922	my $pkg = $1;
		923	$pkg =~ s/[^[:word:]]/_/g;
		924	$pkg = "urxvt::ext::$pkg";
458		925
459	verbose 3, "loading extension '$path' into package '$pkg'";	926	verbose 3, "loading extension '$path' into package '$pkg'";
460		927
461	open my $fh, "<:raw", $path	928	open my $fh, "<:raw", $path
462	or die "$path: $!";	929	or die "$path: $!";
463		930
464	my $source = "package $pkg; use strict; use utf8;\n"	931	my $source =
465	. "use base urxvt::term::proxy::;\n"	932	"package $pkg; use strict; use utf8; no warnings 'utf8';\n"
466	. "#line 1 \"$path\"\n{\n"	933	. "#line 1 \"$path\"\n{\n"
467	. (do { local $/; <$fh> })	934	. (do { local $/; <$fh> })
468	. "\n};\n1";	935	. "\n};\n1";
469		936
		937	eval $source
470	eval $source or die "$path: $@";	938	or die "$path: $@";
471		939
472	$pkg	940	$pkg
473	}	941	}
474	}	942	}
475		943
…		…
480	local $TERM = shift;	948	local $TERM = shift;
481	my $htype = shift;	949	my $htype = shift;
482		950
483	if ($htype == 0) { # INIT	951	if ($htype == 0) { # INIT
484	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");	952	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
		953
		954	my %ext_arg;
		955
485		956	{
486	my %want_ext;	957	my @init = @TERM_INIT;
		958	@TERM_INIT = ();
		959	$_->($TERM) for @init;
		960	my @pkg = @TERM_EXT;
		961	@TERM_EXT = ();
		962	$TERM->register_package ($_) for @pkg;
		963	}
487		964
488	for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {	965	for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
489	if ($_ eq "default") {	966	if ($_ eq "default") {
490	$want_ext{$_}++ for qw(selection);	967	$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
491	} elsif (/-(.*)/) {	968	} elsif (/^-(.*)$/) {
492	delete $want_ext{$1};	969	delete $ext_arg{$1};
		970	} elsif (/^([^<]+)<(.*)>$/) {
		971	push @{ $ext_arg{$1} }, $2;
493	} else {	972	} else {
494	$want_ext{$_}++;	973	$ext_arg{$_} ||= [];
495	}	974	}
496	}	975	}
497		976
498	for my $ext (keys %want_ext) {	977	for my $ext (sort keys %ext_arg) {
499	my @files = grep -f $_, map "$_/$ext", @dirs;	978	my @files = grep -f $_, map "$_/$ext", @dirs;
500		979
501	if (@files) {	980	if (@files) {
502	register_package extension_package $files[0];	981	$TERM->register_package (extension_package $files[0], $ext_arg{$ext});
503	} else {	982	} else {
504	warn "perl extension '$ext' not found in perl library search path\n";	983	warn "perl extension '$ext' not found in perl library search path\n";
505	}	984	}
506	}	985	}
		986
		987	eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval");
		988	warn $@ if $@;
507	}	989	}
508		990
509	$retval = undef;	991	$retval = undef;
510		992
511	if (my $cb = $TERM->{_hook}[$htype]) {	993	if (my $cb = $TERM->{_hook}[$htype]) {
512	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"	994	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
513	if $verbosity >= 10;	995	if $verbosity >= 10;
514		996
515	keys %$cb;	997	for my $pkg (keys %$cb) {
		998	my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg}, @_) };
		999	$retval ||= $retval_;
516		1000
517	while (my ($pkg, $cb) = each %$cb) {	1001	if ($@) {
518	eval {	1002	$TERM->ungrab; # better to lose the grab than the session
519	$retval = $cb->(	1003	warn $@;
520	$TERM->{_pkg}{$pkg} ||= do {
521	my $proxy = bless { }, $pkg;
522	Scalar::Util::weaken ($proxy->{term} = $TERM);
523	$proxy
524	},
525	@_,
526	) and last;
527	};
528	warn $@ if $@;#d#
529	}
530	}
531
532	if ($htype == 1) { # DESTROY
533	# remove hooks if unused
534	if (my $hook = $TERM->{_hook}) {
535	for my $htype (0..$#$hook) {
536	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
537	or set_should_invoke $htype, 0;
538	}	1004	}
539	}	1005	}
540		1006
		1007	verbose 11, "$HOOKNAME[$htype] returning <$retval>"
		1008	if $verbosity >= 11;
		1009	}
		1010
		1011	if ($htype == 1) { # DESTROY
541	# clear package objects	1012	# clear package objects
542	%$_ = () for values %{ $TERM->{_pkg} };	1013	%$_ = () for values %{ $TERM->{_pkg} };
543		1014
544	# clear package	1015	# clear package
545	%$TERM = ();	1016	%$TERM = ();
546	}	1017	}
547		1018
548	$retval	1019	$retval
549	}	1020	}
550		1021
551	sub urxvt::term::proxy::AUTOLOAD {	1022	sub SET_COLOR($$$) {
552	$urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/	1023	SET_BGCOLOR (SET_FGCOLOR ($_[0], $_[1]), $_[2])
		1024	}
		1025
		1026	sub rend2mask {
		1027	no strict 'refs';
		1028	my ($str, $mask) = (@_, 0);
		1029	my %color = ( fg => undef, bg => undef );
		1030	my @failed;
		1031	for my $spec ( split /\s+/, $str ) {
		1032	if ( $spec =~ /^([fb]g)[_:-]?(\d+)/i ) {
		1033	$color{lc($1)} = $2;
		1034	} else {
		1035	my $neg = $spec =~ s/^[-^]//;
		1036	unless ( exists &{"RS_$spec"} ) {
		1037	push @failed, $spec;
		1038	next;
		1039	}
		1040	my $cur = &{"RS_$spec"};
		1041	if ( $neg ) {
		1042	$mask &= ~$cur;
		1043	} else {
		1044	$mask |= $cur;
		1045	}
		1046	}
		1047	}
		1048	($mask, @color{qw(fg bg)}, \@failed)
		1049	}
		1050
		1051	# urxvt::term::extension
		1052
		1053	package urxvt::term::extension;
		1054
		1055	sub enable {
		1056	my ($self, %hook) = @_;
		1057	my $pkg = $self->{_pkg};
		1058
		1059	while (my ($name, $cb) = each %hook) {
		1060	my $htype = $HOOKTYPE{uc $name};
		1061	defined $htype
		1062	or Carp::croak "unsupported hook type '$name'";
		1063
		1064	$self->set_should_invoke ($htype, +1)
		1065	unless exists $self->{term}{_hook}[$htype]{$pkg};
		1066
		1067	$self->{term}{_hook}[$htype]{$pkg} = $cb;
		1068	}
		1069	}
		1070
		1071	sub disable {
		1072	my ($self, @hook) = @_;
		1073	my $pkg = $self->{_pkg};
		1074
		1075	for my $name (@hook) {
		1076	my $htype = $HOOKTYPE{uc $name};
		1077	defined $htype
		1078	or Carp::croak "unsupported hook type '$name'";
		1079
		1080	$self->set_should_invoke ($htype, -1)
		1081	if delete $self->{term}{_hook}[$htype]{$pkg};
		1082	}
		1083	}
		1084
		1085	our $AUTOLOAD;
		1086
		1087	sub AUTOLOAD {
		1088	$AUTOLOAD =~ /:([^:]+)$/
553	or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";	1089	or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
554		1090
555	eval qq{	1091	eval qq{
556	sub $urxvt::term::proxy::AUTOLOAD {	1092	sub $AUTOLOAD {
557	my \$proxy = shift;	1093	my \$proxy = shift;
558	\$proxy->{term}->$1 (\@_)	1094	\$proxy->{term}->$1 (\@_)
559	}	1095	}
560	1	1096	1
561	} or die "FATAL: unable to compile method forwarder: $@";	1097	} or die "FATAL: unable to compile method forwarder: $@";
562		1098
563	goto &$urxvt::term::proxy::AUTOLOAD;	1099	goto &$AUTOLOAD;
564	}	1100	}
		1101
		1102	sub DESTROY {
		1103	# nop
		1104	}
		1105
		1106	# urxvt::destroy_hook
565		1107
566	sub urxvt::destroy_hook::DESTROY {	1108	sub urxvt::destroy_hook::DESTROY {
567	${$_[0]}->();	1109	${$_[0]}->();
568	}	1110	}
569		1111
570	sub urxvt::destroy_hook(&) {	1112	sub urxvt::destroy_hook(&) {
571	bless \shift, urxvt::destroy_hook::	1113	bless \shift, urxvt::destroy_hook::
572	}	1114	}
573		1115
		1116	package urxvt::anyevent;
		1117
		1118	=head2 The C<urxvt::anyevent> Class
		1119
		1120	The sole purpose of this class is to deliver an interface to the
		1121	C<AnyEvent> module - any module using it will work inside urxvt without
		1122	further programming. The only exception is that you cannot wait on
		1123	condition variables, but non-blocking condvar use is ok. What this means
		1124	is that you cannot use blocking APIs, but the non-blocking variant should
		1125	work.
		1126
		1127	=cut
		1128
		1129	our $VERSION = '3.4';
		1130
		1131	$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
		1132	push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
		1133
		1134	sub timer {
		1135	my ($class, %arg) = @_;
		1136
		1137	my $cb = $arg{cb};
		1138
		1139	urxvt::timer
		1140	->new
		1141	->start (urxvt::NOW + $arg{after})
		1142	->cb (sub {
		1143	$_[0]->stop; # need to cancel manually
		1144	$cb->();
		1145	})
		1146	}
		1147
		1148	sub io {
		1149	my ($class, %arg) = @_;
		1150
		1151	my $cb = $arg{cb};
		1152
		1153	bless [$arg{fh}, urxvt::iow
		1154	->new
		1155	->fd (fileno $arg{fh})
		1156	->events (($arg{poll} =~ /r/ ? 1 : 0)
		1157	| ($arg{poll} =~ /w/ ? 2 : 0))
		1158	->start
		1159	->cb (sub {
		1160	$cb->(($_[1] & 1 ? 'r' : '')
		1161	. ($_[1] & 2 ? 'w' : ''));
		1162	})],
		1163	urxvt::anyevent::
		1164	}
		1165
		1166	sub DESTROY {
		1167	$_[0][1]->stop;
		1168	}
		1169
		1170	sub one_event {
		1171	Carp::croak "AnyEvent->one_event blocking wait unsupported in urxvt, use a non-blocking API";
		1172	}
		1173
		1174	package urxvt::term;
		1175
574	=head2 The C<urxvt::term> Class	1176	=head2 The C<urxvt::term> Class
575		1177
576	=over 4	1178	=over 4
577		1179
		1180	=cut
		1181
		1182	# find on_xxx subs in the package and register them
		1183	# as hooks
		1184	sub register_package {
		1185	my ($self, $pkg, $argv) = @_;
		1186
		1187	no strict 'refs';
		1188
		1189	urxvt::verbose 6, "register package $pkg to $self";
		1190
		1191	@{"$pkg\::ISA"} = urxvt::term::extension::;
		1192
		1193	my $proxy = bless {
		1194	_pkg => $pkg,
		1195	argv => $argv,
		1196	}, $pkg;
		1197	Scalar::Util::weaken ($proxy->{term} = $self);
		1198
		1199	$self->{_pkg}{$pkg} = $proxy;
		1200
		1201	for my $name (@HOOKNAME) {
		1202	if (my $ref = $pkg->can ("on_" . lc $name)) {
		1203	$proxy->enable ($name => $ref);
		1204	}
		1205	}
		1206	}
		1207
		1208	=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
		1209
		1210	Creates a new terminal, very similar as if you had started it with system
		1211	C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
		1212	hash which defines the environment of the new terminal.
		1213
		1214	Croaks (and probably outputs an error message) if the new instance
		1215	couldn't be created. Returns C<undef> if the new instance didn't
		1216	initialise perl, and the terminal object otherwise. The C<init> and
		1217	C<start> hooks will be called before this call returns, and are free to
		1218	refer to global data (which is race free).
		1219
		1220	=cut
		1221
		1222	sub new {
		1223	my ($class, $env, @args) = @_;
		1224
		1225	$env or Carp::croak "environment hash missing in call to urxvt::term->new";
		1226	@args or Carp::croak "name argument missing in call to urxvt::term->new";
		1227
		1228	_new ([ map "$_=$env->{$_}", keys %$env ], \@args);
		1229	}
		1230
578	=item $term->destroy	1231	=item $term->destroy
579		1232
580	Destroy the terminal object (close the window, free resources etc.).	1233	Destroy the terminal object (close the window, free resources
		1234	etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
		1235	watchers (timers, io watchers) are still active.
		1236
		1237	=item $term->exec_async ($cmd[, @args])
		1238
		1239	Works like the combination of the C<fork>/C<exec> builtins, which executes
		1240	("starts") programs in the background. This function takes care of setting
		1241	the user environment before exec'ing the command (e.g. C<PATH>) and should
		1242	be preferred over explicit calls to C<exec> or C<system>.
		1243
		1244	Returns the pid of the subprocess or C<undef> on error.
		1245
		1246	=cut
		1247
		1248	sub exec_async {
		1249	my $self = shift;
		1250
		1251	my $pid = fork;
		1252
		1253	return $pid
		1254	if !defined $pid or $pid;
		1255
		1256	%ENV = %{ $self->env };
		1257
		1258	exec @_;
		1259	urxvt::_exit 255;
		1260	}
581		1261
582	=item $isset = $term->option ($optval[, $set])	1262	=item $isset = $term->option ($optval[, $set])
583		1263
584	Returns true if the option specified by C<$optval> is enabled, and	1264	Returns true if the option specified by C<$optval> is enabled, and
585	optionally change it. All option values are stored by name in the hash	1265	optionally change it. All option values are stored by name in the hash
586	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.	1266	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
587		1267
588	Here is a a likely non-exhaustive list of option names, please see the	1268	Here is a likely non-exhaustive list of option names, please see the
589	source file F</src/optinc.h> to see the actual list:	1269	source file F</src/optinc.h> to see the actual list:
590		1270
591	borderLess console cursorBlink cursorUnderline hold iconic insecure	1271	borderLess console cursorBlink cursorUnderline hold iconic insecure
592	intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage	1272	intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
593	pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating	1273	override-redirect pastableTabs pointerBlank reverseVideo scrollBar
594	scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer	1274	scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
595	secondaryScreen secondaryScroll skipBuiltinGlyphs transparent	1275	scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
596	tripleclickwords utmpInhibit visualBell	1276	transparent tripleclickwords utmpInhibit visualBell
597		1277
598	=item $value = $term->resource ($name[, $newval])	1278	=item $value = $term->resource ($name[, $newval])
599		1279
600	Returns the current resource value associated with a given name and	1280	Returns the current resource value associated with a given name and
601	optionally sets a new value. Setting values is most useful in the C<init>	1281	optionally sets a new value. Setting values is most useful in the C<init>
…		…
610	likely change).	1290	likely change).
611		1291
612	Please note that resource strings will currently only be freed when the	1292	Please note that resource strings will currently only be freed when the
613	terminal is destroyed, so changing options frequently will eat memory.	1293	terminal is destroyed, so changing options frequently will eat memory.
614		1294
615	Here is a a likely non-exhaustive list of resource names, not all of which	1295	Here is a likely non-exhaustive list of resource names, not all of which
616	are supported in every build, please see the source file F</src/rsinc.h>	1296	are supported in every build, please see the source file F</src/rsinc.h>
617	to see the actual list:	1297	to see the actual list:
618		1298
619	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont	1299	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
620	borderLess color cursorBlink cursorUnderline cutchars delete_key	1300	borderLess chdir color cursorBlink cursorUnderline cutchars delete_key
621	display_name embed ext_bwidth fade font geometry hold iconName	1301	display_name embed ext_bwidth fade font geometry hold iconName
622	imFont imLocale inputMethod insecure int_bwidth intensityStyles	1302	imFont imLocale inputMethod insecure int_bwidth intensityStyles
623	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier	1303	italicFont jumpScroll lineSpace letterSpace loginShell mapAlert meta8
624	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2	1304	modifier mouseWheelScrollPage name override_redirect pastableTabs path
625	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd	1305	perl_eval perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
626	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating	1306	preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
627	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput	1307	scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
628	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle	1308	scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
629	shade term_name title transparent transparent_all tripleclickwords	1309	secondaryScreen secondaryScroll shade term_name title
630	utmpInhibit visualBell	1310	transient_for transparent transparent_all tripleclickwords utmpInhibit
		1311	visualBell
631		1312
632	=cut	1313	=cut
633		1314
634	sub urxvt::term::resource($$;$) {	1315	sub resource($$;$) {
635	my ($self, $name) = (shift, shift);	1316	my ($self, $name) = (shift, shift);
636	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);	1317	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
637	&urxvt::term::_resource	1318	goto &urxvt::term::_resource
638	}	1319	}
		1320
		1321	=item $value = $term->x_resource ($pattern)
		1322
		1323	Returns the X-Resource for the given pattern, excluding the program or
		1324	class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
		1325	same value as used by this instance of rxvt-unicode. Returns C<undef> if no
		1326	resource with that pattern exists.
		1327
		1328	This method should only be called during the C<on_start> hook, as there is
		1329	only one resource database per display, and later invocations might return
		1330	the wrong resources.
		1331
		1332	=item $success = $term->parse_keysym ($keysym_spec, $command_string)
		1333
		1334	Adds a keymap translation exactly as specified via a resource. See the
		1335	C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
639		1336
640	=item $rend = $term->rstyle ([$new_rstyle])	1337	=item $rend = $term->rstyle ([$new_rstyle])
641		1338
642	Return and optionally change the current rendition. Text that is output by	1339	Return and optionally change the current rendition. Text that is output by
643	the terminal application will use this style.	1340	the terminal application will use this style.
…		…
654	=item ($row, $col) = $term->selection_end ([$row, $col])	1351	=item ($row, $col) = $term->selection_end ([$row, $col])
655		1352
656	Return the current values of the selection mark, begin or end positions,	1353	Return the current values of the selection mark, begin or end positions,
657	and optionally set them to new values.	1354	and optionally set them to new values.
658		1355
		1356	=item $term->selection_make ($eventtime[, $rectangular])
		1357
		1358	Tries to make a selection as set by C<selection_beg> and
		1359	C<selection_end>. If C<$rectangular> is true (default: false), a
		1360	rectangular selection will be made. This is the prefered function to make
		1361	a selection.
		1362
659	=item $success = $term->selection_grab ($eventtime)	1363	=item $success = $term->selection_grab ($eventtime)
660		1364
661	Try to request the primary selection from the server (for example, as set	1365	Try to request the primary selection text from the server (for example, as
662	by the next method).	1366	set by the next method). No visual feedback will be given. This function
		1367	is mostly useful from within C<on_sel_grab> hooks.
663		1368
664	=item $oldtext = $term->selection ([$newtext])	1369	=item $oldtext = $term->selection ([$newtext])
665		1370
666	Return the current selection text and optionally replace it by C<$newtext>.	1371	Return the current selection text and optionally replace it by C<$newtext>.
667		1372
668	#=item $term->overlay ($x, $y, $text)	1373	=item $term->overlay_simple ($x, $y, $text)
669	#	1374
670	#Create a simple multi-line overlay box. See the next method for details.	1375	Create a simple multi-line overlay box. See the next method for details.
671	#	1376
672	#=cut	1377	=cut
673	#	1378
674	#sub urxvt::term::scr_overlay {	1379	sub overlay_simple {
675	# my ($self, $x, $y, $text) = @_;	1380	my ($self, $x, $y, $text) = @_;
676	#	1381
677	# my @lines = split /\n/, $text;	1382	my @lines = split /\n/, $text;
678	#	1383
679	# my $w = 0;	1384	my $w = List::Util::max map $self->strwidth ($_), @lines;
680	# for (map $self->strwidth ($_), @lines) {	1385
681	# $w = $_ if $w < $_;
682	# }
683	#
684	# $self->scr_overlay_new ($x, $y, $w, scalar @lines);	1386	my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
685	# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;	1387	$overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
686	#}	1388
		1389	$overlay
		1390	}
687		1391
688	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])	1392	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
689		1393
690	Create a new (empty) overlay at the given position with the given	1394	Create a new (empty) overlay at the given position with the given
691	width/height. C<$rstyle> defines the initial rendition style	1395	width/height. C<$rstyle> defines the initial rendition style
…		…
702		1406
703	The methods currently supported on C<urxvt::overlay> objects are:	1407	The methods currently supported on C<urxvt::overlay> objects are:
704		1408
705	=over 4	1409	=over 4
706		1410
707	=item $overlay->set ($x, $y, $text, $rend)	1411	=item $overlay->set ($x, $y, $text[, $rend])
708		1412
709	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts	1413	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts
710	text in rxvt-unicode's special encoding and an array of rendition values	1414	text in rxvt-unicode's special encoding and an array of rendition values
711	at a specific position inside the overlay.	1415	at a specific position inside the overlay.
712		1416
		1417	If C<$rend> is missing, then the rendition will not be changed.
		1418
713	=item $overlay->hide	1419	=item $overlay->hide
714		1420
715	If visible, hide the overlay, but do not destroy it.	1421	If visible, hide the overlay, but do not destroy it.
716		1422
717	=item $overlay->show	1423	=item $overlay->show
…		…
726	C<$event> I<must> be the event causing the menu to pop up (a button event,	1432	C<$event> I<must> be the event causing the menu to pop up (a button event,
727	currently).	1433	currently).
728		1434
729	=cut	1435	=cut
730		1436
731	sub urxvt::term::popup {	1437	sub popup {
732	my ($self, $event) = @_;	1438	my ($self, $event) = @_;
733		1439
734	$self->grab ($event->{time}, 1)	1440	$self->grab ($event->{time}, 1)
735	or return;	1441	or return;
736		1442
…		…
758		1464
759	=item $string = $term->locale_decode ($octets)	1465	=item $string = $term->locale_decode ($octets)
760		1466
761	Convert the given locale-encoded octets into a perl string.	1467	Convert the given locale-encoded octets into a perl string.
762		1468
		1469	=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
		1470
		1471	XORs the rendition values in the given span with the provided value
		1472	(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
		1473	refresh hooks to provide effects similar to the selection.
		1474
		1475	=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
		1476
		1477	Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
		1478	whitespace will additionally be xored with the C<$rstyle2>, which defaults
		1479	to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
		1480	it instead. Both styles I<MUST NOT> contain font styles.
		1481
		1482	=item $term->scr_bell
		1483
		1484	Ring the bell!
		1485
763	=item $term->scr_add_lines ($string)	1486	=item $term->scr_add_lines ($string)
764		1487
765	Write the given text string to the screen, as if output by the application	1488	Write the given text string to the screen, as if output by the application
766	running inside the terminal. It may not contain command sequences (escape	1489	running inside the terminal. It may not contain command sequences (escape
767	codes), but is free to use line feeds, carriage returns and tabs. The	1490	codes), but is free to use line feeds, carriage returns and tabs. The
…		…
769		1492
770	Normally its not a good idea to use this function, as programs might be	1493	Normally its not a good idea to use this function, as programs might be
771	confused by changes in cursor position or scrolling. Its useful inside a	1494	confused by changes in cursor position or scrolling. Its useful inside a
772	C<on_add_lines> hook, though.	1495	C<on_add_lines> hook, though.
773		1496
		1497	=item $term->scr_change_screen ($screen)
		1498
		1499	Switch to given screen - 0 primary, 1 secondary.
		1500
774	=item $term->cmd_parse ($octets)	1501	=item $term->cmd_parse ($octets)
775		1502
776	Similar to C<scr_add_lines>, but the argument must be in the	1503	Similar to C<scr_add_lines>, but the argument must be in the
777	locale-specific encoding of the terminal and can contain command sequences	1504	locale-specific encoding of the terminal and can contain command sequences
778	(escape codes) that will be interpreted.	1505	(escape codes) that will be interpreted.
…		…
781		1508
782	Write the octets given in C<$data> to the tty (i.e. as program input). To	1509	Write the octets given in C<$data> to the tty (i.e. as program input). To
783	pass characters instead of octets, you should convert your strings first	1510	pass characters instead of octets, you should convert your strings first
784	to the locale-specific encoding using C<< $term->locale_encode >>.	1511	to the locale-specific encoding using C<< $term->locale_encode >>.
785		1512
		1513	=item $old_events = $term->pty_ev_events ([$new_events])
		1514
		1515	Replaces the event mask of the pty watcher by the given event mask. Can
		1516	be used to suppress input and output handling to the pty/tty. See the
		1517	description of C<< urxvt::timer->events >>. Make sure to always restore
		1518	the previous value.
		1519
		1520	=item $fd = $term->pty_fd
		1521
		1522	Returns the master file descriptor for the pty in use, or C<-1> if no pty
		1523	is used.
		1524
786	=item $windowid = $term->parent	1525	=item $windowid = $term->parent
787		1526
788	Return the window id of the toplevel window.	1527	Return the window id of the toplevel window.
789		1528
790	=item $windowid = $term->vt	1529	=item $windowid = $term->vt
791		1530
792	Return the window id of the terminal window.	1531	Return the window id of the terminal window.
793		1532
		1533	=item $term->vt_emask_add ($x_event_mask)
		1534
		1535	Adds the specified events to the vt event mask. Useful e.g. when you want
		1536	to receive pointer events all the times:
		1537
		1538	$term->vt_emask_add (urxvt::PointerMotionMask);
		1539
		1540	=item $term->focus_in
		1541
		1542	=item $term->focus_out
		1543
		1544	=item $term->key_press ($state, $keycode[, $time])
		1545
		1546	=item $term->key_release ($state, $keycode[, $time])
		1547
		1548	Deliver various fake events to to terminal.
		1549
794	=item $window_width = $term->width	1550	=item $window_width = $term->width
795		1551
796	=item $window_height = $term->height	1552	=item $window_height = $term->height
797		1553
798	=item $font_width = $term->fwidth	1554	=item $font_width = $term->fwidth
…		…
811		1567
812	=item $max_scrollback = $term->saveLines	1568	=item $max_scrollback = $term->saveLines
813		1569
814	=item $nrow_plus_saveLines = $term->total_rows	1570	=item $nrow_plus_saveLines = $term->total_rows
815		1571
816	=item $lines_in_scrollback = $term->nsaved	1572	=item $topmost_scrollback_row = $term->top_row
817		1573
818	Return various integers describing terminal characteristics.	1574	Return various integers describing terminal characteristics.
		1575
		1576	=item $x_display = $term->display_id
		1577
		1578	Return the DISPLAY used by rxvt-unicode.
		1579
		1580	=item $lc_ctype = $term->locale
		1581
		1582	Returns the LC_CTYPE category string used by this rxvt-unicode.
		1583
		1584	=item $env = $term->env
		1585
		1586	Returns a copy of the environment in effect for the terminal as a hashref
		1587	similar to C<\%ENV>.
		1588
		1589	=item @envv = $term->envv
		1590
		1591	Returns the environment as array of strings of the form C<VAR=VALUE>.
		1592
		1593	=item @argv = $term->argv
		1594
		1595	Return the argument vector as this terminal, similar to @ARGV, but
		1596	includes the program name as first element.
		1597
		1598	=cut
		1599
		1600	sub env {
		1601	+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), $_[0]->envv }
		1602	}
819		1603
820	=item $modifiermask = $term->ModLevel3Mask	1604	=item $modifiermask = $term->ModLevel3Mask
821		1605
822	=item $modifiermask = $term->ModMetaMask	1606	=item $modifiermask = $term->ModMetaMask
823		1607
824	=item $modifiermask = $term->ModNumLockMask	1608	=item $modifiermask = $term->ModNumLockMask
825		1609
826	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often	1610	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
827	AltGr), the meta key (often Alt) and the num lock key, if applicable.	1611	AltGr), the meta key (often Alt) and the num lock key, if applicable.
828		1612
		1613	=item $screen = $term->current_screen
		1614
		1615	Returns the currently displayed screen (0 primary, 1 secondary).
		1616
		1617	=item $cursor_is_hidden = $term->hidden_cursor
		1618
		1619	Returns whether the cursor is currently hidden or not.
		1620
829	=item $view_start = $term->view_start ([$newvalue])	1621	=item $view_start = $term->view_start ([$newvalue])
830		1622
831	Returns the negative row number of the topmost line. Minimum value is	1623	Returns the row number of the topmost displayed line. Maximum value is
832	C<0>, which displays the normal terminal contents. Larger values scroll	1624	C<0>, which displays the normal terminal contents. Lower values scroll
833	this many lines into the scrollback buffer.	1625	this many lines into the scrollback buffer.
834		1626
835	=item $term->want_refresh	1627	=item $term->want_refresh
836		1628
837	Requests a screen refresh. At the next opportunity, rxvt-unicode will	1629	Requests a screen refresh. At the next opportunity, rxvt-unicode will
…		…
840		1632
841	Used after changing terminal contents to display them.	1633	Used after changing terminal contents to display them.
842		1634
843	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])	1635	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
844		1636
845	Returns the text of the entire row with number C<$row_number>. Row C<0>	1637	Returns the text of the entire row with number C<$row_number>. Row C<< $term->top_row >>
846	is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost	1638	is the topmost terminal line, row C<< $term->nrow-1 >> is the bottommost
847	terminal line. The scrollback buffer starts at line C<-1> and extends to
848	line C<< -$term->nsaved >>. Nothing will be returned if a nonexistent line	1639	terminal line. Nothing will be returned if a nonexistent line
849	is requested.	1640	is requested.
850		1641
851	If C<$new_text> is specified, it will replace characters in the current	1642	If C<$new_text> is specified, it will replace characters in the current
852	line, starting at column C<$start_col> (default C<0>), which is useful	1643	line, starting at column C<$start_col> (default C<0>), which is useful
853	to replace only parts of a line. The font index in the rendition will	1644	to replace only parts of a line. The font index in the rendition will
854	automatically be updated.	1645	automatically be updated.
855		1646
856	C<$text> is in a special encoding: tabs and wide characters that use more	1647	C<$text> is in a special encoding: tabs and wide characters that use more
857	than one cell when displayed are padded with urxvt::NOCHAR characters	1648	than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
858	(C<chr 65535>). Characters with combining characters and other characters	1649	characters. Characters with combining characters and other characters that
859	that do not fit into the normal tetx encoding will be replaced with	1650	do not fit into the normal text encoding will be replaced with characters
860	characters in the private use area.	1651	in the private use area.
861		1652
862	You have to obey this encoding when changing text. The advantage is	1653	You have to obey this encoding when changing text. The advantage is
863	that C<substr> and similar functions work on screen cells and not on	1654	that C<substr> and similar functions work on screen cells and not on
864	characters.	1655	characters.
865		1656
…		…
916	Return the row number of the first/last row of the line, respectively.	1707	Return the row number of the first/last row of the line, respectively.
917		1708
918	=item $offset = $line->offset_of ($row, $col)	1709	=item $offset = $line->offset_of ($row, $col)
919		1710
920	Returns the character offset of the given row|col pair within the logical	1711	Returns the character offset of the given row|col pair within the logical
921	line.	1712	line. Works for rows outside the line, too, and returns corresponding
		1713	offsets outside the string.
922		1714
923	=item ($row, $col) = $line->coord_of ($offset)	1715	=item ($row, $col) = $line->coord_of ($offset)
924		1716
925	Translates a string offset into terminal coordinates again.	1717	Translates a string offset into terminal coordinates again.
926		1718
927	=back	1719	=back
928		1720
929	=cut	1721	=cut
930		1722
931	sub urxvt::term::line {	1723	sub line {
932	my ($self, $row) = @_;	1724	my ($self, $row) = @_;
933		1725
934	my $maxrow = $self->nrow - 1;	1726	my $maxrow = $self->nrow - 1;
935		1727
936	my ($beg, $end) = ($row, $row);	1728	my ($beg, $end) = ($row, $row);
…		…
1000	$offset / $self->{ncol} + $self->{beg},	1792	$offset / $self->{ncol} + $self->{beg},
1001	$offset % $self->{ncol}	1793	$offset % $self->{ncol}
1002	)	1794	)
1003	}	1795	}
1004		1796
1005	=item ($row, $col) = $line->coord_of ($offset)
1006	=item $text = $term->special_encode $string	1797	=item $text = $term->special_encode $string
1007		1798
1008	Converts a perl string into the special encoding used by rxvt-unicode,	1799	Converts a perl string into the special encoding used by rxvt-unicode,
1009	where one character corresponds to one screen cell. See	1800	where one character corresponds to one screen cell. See
1010	C<< $term->ROW_t >> for details.	1801	C<< $term->ROW_t >> for details.
1011		1802
1012	=item $string = $term->special_decode $text	1803	=item $string = $term->special_decode $text
1013		1804
1014	Converts rxvt-unicodes text reprsentation into a perl string. See	1805	Converts rxvt-unicodes text representation into a perl string. See
1015	C<< $term->ROW_t >> for details.	1806	C<< $term->ROW_t >> for details.
1016		1807
		1808	=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
		1809
		1810	=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
		1811
		1812	Register/unregister a synchronous button grab. See the XGrabButton
		1813	manpage.
		1814
		1815	=item $success = $term->grab ($eventtime[, $sync])
		1816
		1817	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
		1818	synchronous (C<$sync> is true). Also remembers the grab timestamp.
		1819
		1820	=item $term->allow_events_async
		1821
		1822	Calls XAllowEvents with AsyncBoth for the most recent grab.
		1823
		1824	=item $term->allow_events_sync
		1825
		1826	Calls XAllowEvents with SyncBoth for the most recent grab.
		1827
		1828	=item $term->allow_events_replay
		1829
		1830	Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
		1831	recent grab.
		1832
		1833	=item $term->ungrab
		1834
		1835	Calls XUngrab for the most recent grab. Is called automatically on
		1836	evaluation errors, as it is better to lose the grab in the error case as
		1837	the session.
		1838
		1839	=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
		1840
		1841	=item $atom_name = $term->XGetAtomName ($atom)
		1842
		1843	=item @atoms = $term->XListProperties ($window)
		1844
		1845	=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
		1846
		1847	=item $term->XChangeProperty ($window, $property, $type, $format, $octets)
		1848
		1849	=item $term->XDeleteProperty ($window, $property)
		1850
		1851	=item $window = $term->DefaultRootWindow
		1852
		1853	=item $term->XReparentWindow ($window, $parent, [$x, $y])
		1854
		1855	=item $term->XMapWindow ($window)
		1856
		1857	=item $term->XUnmapWindow ($window)
		1858
		1859	=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
		1860
		1861	=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
		1862
		1863	=item $term->XChangeInput ($window, $add_events[, $del_events])
		1864
		1865	Various X or X-related functions. The C<$term> object only serves as
		1866	the source of the display, otherwise those functions map more-or-less
		1867	directory onto the X functions of the same name.
		1868
1017	=back	1869	=back
1018		1870
		1871	=cut
		1872
		1873	package urxvt::popup;
		1874
1019	=head2 The C<urxvt::popup> Class	1875	=head2 The C<urxvt::popup> Class
1020		1876
1021	=over 4	1877	=over 4
1022		1878
1023	=cut	1879	=cut
1024
1025	package urxvt::popup;
1026		1880
1027	sub add_item {	1881	sub add_item {
1028	my ($self, $item) = @_;	1882	my ($self, $item) = @_;
1029		1883
		1884	$item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal};
		1885	$item->{rend}{hover} = "\x1b[0;30;46m" unless exists $item->{rend}{hover};
		1886	$item->{rend}{active} = "\x1b[m" unless exists $item->{rend}{active};
		1887
		1888	$item->{render} ||= sub { $_[0]{text} };
		1889
1030	push @{ $self->{item} }, $item;	1890	push @{ $self->{item} }, $item;
1031	}	1891	}
		1892
		1893	=item $popup->add_title ($title)
		1894
		1895	Adds a non-clickable title to the popup.
		1896
		1897	=cut
		1898
		1899	sub add_title {
		1900	my ($self, $title) = @_;
		1901
		1902	$self->add_item ({
		1903	rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
		1904	text => $title,
		1905	activate => sub { },
		1906	});
		1907	}
		1908
		1909	=item $popup->add_separator ([$sepchr])
		1910
		1911	Creates a separator, optionally using the character given as C<$sepchr>.
		1912
		1913	=cut
		1914
		1915	sub add_separator {
		1916	my ($self, $sep) = @_;
		1917
		1918	$sep ||= "=";
		1919
		1920	$self->add_item ({
		1921	rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
		1922	text => "",
		1923	render => sub { $sep x $self->{term}->ncol },
		1924	activate => sub { },
		1925	});
		1926	}
		1927
		1928	=item $popup->add_button ($text, $cb)
		1929
		1930	Adds a clickable button to the popup. C<$cb> is called whenever it is
		1931	selected.
		1932
		1933	=cut
1032		1934
1033	sub add_button {	1935	sub add_button {
1034	my ($self, $text, $cb) = @_;	1936	my ($self, $text, $cb) = @_;
1035		1937
1036	$self->add_item ({ type => "button", text => "[ $text ]", activate => $cb,	1938	$self->add_item ({ type => "button", text => $text, activate => $cb});
1037	render => sub { $_[0]{text} },
1038	});
1039	}	1939	}
		1940
		1941	=item $popup->add_toggle ($text, $initial_value, $cb)
		1942
		1943	Adds a toggle/checkbox item to the popup. The callback gets called
		1944	whenever it gets toggled, with a boolean indicating its new value as its
		1945	first argument.
		1946
		1947	=cut
1040		1948
1041	sub add_toggle {	1949	sub add_toggle {
1042	my ($self, $text, $cb, $value) = @_;	1950	my ($self, $text, $value, $cb) = @_;
1043		1951
1044	my $item; $item = {	1952	my $item; $item = {
1045	type => "button",	1953	type => "button",
1046	text => " $text",	1954	text => " $text",
1047	value => $value,	1955	value => $value,
1048	render => sub { ($item->{value} ? "✔" : " ") . $text },	1956	render => sub { ($_[0]{value} ? "* " : " ") . $text },
1049	activate => sub { $cb->($item->{value} = !$item->{value}); },	1957	activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
1050	};	1958	};
1051		1959
1052	$self->add_item ($item);	1960	$self->add_item ($item);
1053	}	1961	}
		1962
		1963	=item $popup->show
		1964
		1965	Displays the popup (which is initially hidden).
		1966
		1967	=cut
1054		1968
1055	sub show {	1969	sub show {
1056	my ($self) = @_;	1970	my ($self) = @_;
1057		1971
1058	local $urxvt::popup::self = $self;	1972	local $urxvt::popup::self = $self;
1059		1973
1060	urxvt->new ("--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0,	1974	my $env = $self->{term}->env;
		1975	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
		1976	delete $env->{LC_ALL};
		1977	$env->{LC_CTYPE} = $self->{term}->locale;
		1978
		1979	my $term = urxvt::term->new (
		1980	$env, "popup",
		1981	"--perl-lib" => "", "--perl-ext-common" => "",
		1982	"-pty-fd" => -1, "-sl" => 0,
		1983	"-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1061	"--transient-for" => $self->{term}->parent,	1984	"--transient-for" => $self->{term}->parent,
		1985	"-display" => $self->{term}->display_id,
1062	"-pe" => "urxvt-popup")	1986	"-pe" => "urxvt-popup",
1063	or die "unable to create popup window\n";	1987	) or die "unable to create popup window\n";
		1988
		1989	unless (delete $term->{urxvt_popup_init_done}) {
		1990	$term->ungrab;
		1991	$term->destroy;
		1992	die "unable to initialise popup window\n";
		1993	}
1064	}	1994	}
1065		1995
1066	sub DESTROY {	1996	sub DESTROY {
1067	my ($self) = @_;	1997	my ($self) = @_;
1068		1998
		1999	delete $self->{term}{_destroy}{$self};
1069	$self->{term}->ungrab;	2000	$self->{term}->ungrab;
1070	}	2001	}
		2002
		2003	=back
		2004
		2005	=cut
		2006
		2007	package urxvt::watcher;
1071		2008
1072	=head2 The C<urxvt::timer> Class	2009	=head2 The C<urxvt::timer> Class
1073		2010
1074	This class implements timer watchers/events. Time is represented as a	2011	This class implements timer watchers/events. Time is represented as a
1075	fractional number of seconds since the epoch. Example:	2012	fractional number of seconds since the epoch. Example:
…		…
1079	->new	2016	->new
1080	->interval (1)	2017	->interval (1)
1081	->cb (sub {	2018	->cb (sub {
1082	$term->{overlay}->set (0, 0,	2019	$term->{overlay}->set (0, 0,
1083	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);	2020	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
1084	});	2021	});
1085		2022
1086	=over 4	2023	=over 4
1087		2024
1088	=item $timer = new urxvt::timer	2025	=item $timer = new urxvt::timer
1089		2026
…		…
1113	Start the timer.	2050	Start the timer.
1114		2051
1115	=item $timer = $timer->start ($tstamp)	2052	=item $timer = $timer->start ($tstamp)
1116		2053
1117	Set the event trigger time to C<$tstamp> and start the timer.	2054	Set the event trigger time to C<$tstamp> and start the timer.
		2055
		2056	=item $timer = $timer->after ($delay)
		2057
		2058	Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1118		2059
1119	=item $timer = $timer->stop	2060	=item $timer = $timer->stop
1120		2061
1121	Stop the timer.	2062	Stop the timer.
1122		2063
…		…
1128		2069
1129	$term->{socket} = ...	2070	$term->{socket} = ...
1130	$term->{iow} = urxvt::iow	2071	$term->{iow} = urxvt::iow
1131	->new	2072	->new
1132	->fd (fileno $term->{socket})	2073	->fd (fileno $term->{socket})
1133	->events (1) # wait for read data	2074	->events (urxvt::EV_READ)
1134	->start	2075	->start
1135	->cb (sub {	2076	->cb (sub {
1136	my ($iow, $revents) = @_;	2077	my ($iow, $revents) = @_;
1137	# $revents must be 1 here, no need to check	2078	# $revents must be 1 here, no need to check
1138	sysread $term->{socket}, my $buf, 8192	2079	sysread $term->{socket}, my $buf, 8192
…		…
1151	Set the callback to be called when io events are triggered. C<$reventmask>	2092	Set the callback to be called when io events are triggered. C<$reventmask>
1152	is a bitset as described in the C<events> method.	2093	is a bitset as described in the C<events> method.
1153		2094
1154	=item $iow = $iow->fd ($fd)	2095	=item $iow = $iow->fd ($fd)
1155		2096
1156	Set the filedescriptor (not handle) to watch.	2097	Set the file descriptor (not handle) to watch.
1157		2098
1158	=item $iow = $iow->events ($eventmask)	2099	=item $iow = $iow->events ($eventmask)
1159		2100
1160	Set the event mask to watch. Bit #0 (value C<1>) enables watching for read	2101	Set the event mask to watch. The only allowed values are
1161	data, Bit #1 (value C<2>) enables watching for write data.	2102	C<urxvt::EV_READ> and C<urxvt::EV_WRITE>, which might be ORed
		2103	together, or C<urxvt::EV_NONE>.
1162		2104
1163	=item $iow = $iow->start	2105	=item $iow = $iow->start
1164		2106
1165	Start watching for requested events on the given handle.	2107	Start watching for requested events on the given handle.
1166		2108
1167	=item $iow = $iow->stop	2109	=item $iow = $iow->stop
1168		2110
1169	Stop watching for events on the given filehandle.	2111	Stop watching for events on the given file handle.
		2112
		2113	=back
		2114
		2115	=head2 The C<urxvt::iw> Class
		2116
		2117	This class implements idle watchers, that get called automatically when
		2118	the process is idle. They should return as fast as possible, after doing
		2119	some useful work.
		2120
		2121	=over 4
		2122
		2123	=item $iw = new urxvt::iw
		2124
		2125	Create a new idle watcher object in stopped state.
		2126
		2127	=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
		2128
		2129	Set the callback to be called when the watcher triggers.
		2130
		2131	=item $timer = $timer->start
		2132
		2133	Start the watcher.
		2134
		2135	=item $timer = $timer->stop
		2136
		2137	Stop the watcher.
		2138
		2139	=back
		2140
		2141	=head2 The C<urxvt::pw> Class
		2142
		2143	This class implements process watchers. They create an event whenever a
		2144	process exits, after which they stop automatically.
		2145
		2146	my $pid = fork;
		2147	...
		2148	$term->{pw} = urxvt::pw
		2149	->new
		2150	->start ($pid)
		2151	->cb (sub {
		2152	my ($pw, $exit_status) = @_;
		2153	...
		2154	});
		2155
		2156	=over 4
		2157
		2158	=item $pw = new urxvt::pw
		2159
		2160	Create a new process watcher in stopped state.
		2161
		2162	=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
		2163
		2164	Set the callback to be called when the timer triggers.
		2165
		2166	=item $pw = $timer->start ($pid)
		2167
		2168	Tells the watcher to start watching for process C<$pid>.
		2169
		2170	=item $pw = $pw->stop
		2171
		2172	Stop the watcher.
1170		2173
1171	=back	2174	=back
1172		2175
1173	=head1 ENVIRONMENT	2176	=head1 ENVIRONMENT
1174		2177
…		…
1177	This variable controls the verbosity level of the perl extension. Higher	2180	This variable controls the verbosity level of the perl extension. Higher
1178	numbers indicate more verbose output.	2181	numbers indicate more verbose output.
1179		2182
1180	=over 4	2183	=over 4
1181		2184
1182	=item =0 - only fatal messages	2185	=item == 0 - fatal messages
1183		2186
1184	=item =3 - script loading and management	2187	=item >= 3 - script loading and management
1185		2188
1186	=item =10 - all events received	2189	=item >=10 - all called hooks
		2190
		2191	=item >=11 - hook return values
1187		2192
1188	=back	2193	=back
1189		2194
1190	=head1 AUTHOR	2195	=head1 AUTHOR
1191		2196
…		…
1193	http://software.schmorp.de/pkg/rxvt-unicode	2198	http://software.schmorp.de/pkg/rxvt-unicode
1194		2199
1195	=cut	2200	=cut
1196		2201
1197	1	2202	1
		2203
		2204	# vim: sw=3:

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