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Revision 1.46 by root, Sat Jan 7 20:29:28 2006 UTC vs.
Revision 1.162 by ayin, Mon Dec 17 16:57:57 2007 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).
68		307
69	=item block-graphics-to-ascii	308	=item block-graphics-to-ascii
70		309
71	A not very useful example of filtering all text output to the terminal,	310	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	311	by replacing all line-drawing characters (U+2500 .. U+259F) by a
73	similar-looking ascii character.	312	similar-looking ascii character.
		313
		314	=item digital-clock
		315
		316	Displays a digital clock using the built-in overlay.
		317
		318	=item remote-clipboard
		319
		320	Somewhat of a misnomer, this extension adds two menu entries to the
		321	selection popup that allows one to run external commands to store the
		322	selection somewhere and fetch it again.
		323
		324	We use it to implement a "distributed selection mechanism", which just
		325	means that one command uploads the file to a remote server, and another
		326	reads it.
		327
		328	The commands can be set using the C<URxvt.remote-selection.store> and
		329	C<URxvt.remote-selection.fetch> resources. The first should read the
		330	selection to store from STDIN (always in UTF-8), the second should provide
		331	the selection data on STDOUT (also in UTF-8).
		332
		333	The defaults (which are likely useless to you) use rsh and cat:
		334
		335	URxvt.remote-selection.store: rsh ruth 'cat >/tmp/distributed-selection'
		336	URxvt.remote-selection.fetch: rsh ruth 'cat /tmp/distributed-selection'
		337
		338	=item selection-pastebin
		339
		340	This is a little rarely useful extension that Uploads the selection as
		341	textfile to a remote site (or does other things). (The implementation is
		342	not currently secure for use in a multiuser environment as it writes to
		343	F</tmp> directly.).
		344
		345	It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
		346	i.e.
		347
		348	URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
		349
		350	Pressing this combination runs a command with C<%> replaced by the name of
		351	the textfile. This command can be set via a resource:
		352
		353	URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
		354
		355	And the default is likely not useful to anybody but the few people around
		356	here :)
		357
		358	The name of the textfile is the hex encoded md5 sum of the selection, so
		359	the same content should lead to the same filename.
		360
		361	After a successful upload the selection will be replaced by the text given
		362	in the C<selection-pastebin-url> resource (again, the % is the placeholder
		363	for the filename):
		364
		365	URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
		366
		367	I<Note to xrdb users:> xrdb uses the C preprocessor, which might interpret
		368	the double C</> characters as comment start. Use C<\057\057> instead,
		369	which works regardless of wether xrdb is used to parse the resource file
		370	or not.
74		371
75	=item example-refresh-hooks	372	=item example-refresh-hooks
76		373
77	Displays a very simple digital clock in the upper right corner of the	374	Displays a very simple digital clock in the upper right corner of the
78	window. Illustrates overwriting the refresh callbacks to create your own	375	window. Illustrates overwriting the refresh callbacks to create your own
79	overlays or changes.	376	overlays or changes.
80		377
81	=back	378	=back
		379
		380	=head1 API DOCUMENTATION
82		381
83	=head2 General API Considerations	382	=head2 General API Considerations
84		383
85	All objects (such as terminals, time watchers etc.) are typical	384	All objects (such as terminals, time watchers etc.) are typical
86	reference-to-hash objects. The hash can be used to store anything you	385	reference-to-hash objects. The hash can be used to store anything you
…		…
99	=over 4	398	=over 4
100		399
101	=item $text	400	=item $text
102		401
103	Rxvt-unicodes special way of encoding text, where one "unicode" character	402	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.	403	always represents one screen cell. See L<ROW_t> for a discussion of this format.
105		404
106	=item $string	405	=item $string
107		406
108	A perl text string, with an emphasis on I<text>. It can store all unicode	407	A perl text string, with an emphasis on I<text>. It can store all unicode
109	characters and is to be distinguished with text encoded in a specific	408	characters and is to be distinguished with text encoded in a specific
…		…
114	Either binary data or - more common - a text string encoded in a	413	Either binary data or - more common - a text string encoded in a
115	locale-specific way.	414	locale-specific way.
116		415
117	=back	416	=back
118		417
		418	=head2 Extension Objects
		419
		420	Every perl extension is a perl class. A separate perl object is created
		421	for each terminal, and each terminal has its own set of extenion objects,
		422	which are passed as the first parameter to hooks. So extensions can use
		423	their C<$self> object without having to think about clashes with other
		424	extensions or other terminals, with the exception of methods and members
		425	that begin with an underscore character C<_>: these are reserved for
		426	internal use.
		427
		428	Although it isn't a C<urxvt::term> object, you can call all methods of the
		429	C<urxvt::term> class on this object.
		430
		431	It has the following methods and data members:
		432
		433	=over 4
		434
		435	=item $urxvt_term = $self->{term}
		436
		437	Returns the C<urxvt::term> object associated with this instance of the
		438	extension. This member I<must not> be changed in any way.
		439
		440	=item $self->enable ($hook_name => $cb, [$hook_name => $cb..])
		441
		442	Dynamically enable the given hooks (named without the C<on_> prefix) for
		443	this extension, replacing any previous hook. This is useful when you want
		444	to overwrite time-critical hooks only temporarily.
		445
		446	=item $self->disable ($hook_name[, $hook_name..])
		447
		448	Dynamically disable the given hooks.
		449
		450	=back
		451
119	=head2 Hooks	452	=head2 Hooks
120		453
121	The following subroutines can be declared in extension files, and will be	454	The following subroutines can be declared in extension files, and will be
122	called whenever the relevant event happens.	455	called whenever the relevant event happens.
123		456
124	The first argument passed to them is an object private to each terminal	457	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	458	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		459
131	All of them must return a boolean value. If it is true, then the event	460	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,	461	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.	462	relevant action might not be carried out by the C++ code.
134		463
135	When in doubt, return a false value (preferably C<()>).	464	I<< When in doubt, return a false value (preferably C<()>). >>
136		465
137	=over 4	466	=over 4
138		467
139	=item on_init $term	468	=item on_init $term
140		469
141	Called after a new terminal object has been initialized, but before	470	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	471	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	472	call or deliver senseless data, as terminal size and other characteristics
144	have not yet been determined. You can safely query and change resources,	473	have not yet been determined. You can safely query and change resources
145	though.	474	and options, though. For many purposes the C<on_start> hook is a better
		475	place.
		476
		477	=item on_start $term
		478
		479	Called at the very end of initialisation of a new terminal, just before
		480	trying to map (display) the toplevel and returning to the main loop.
		481
		482	=item on_destroy $term
		483
		484	Called whenever something tries to destroy terminal, when the terminal is
		485	still fully functional (not for long, though).
146		486
147	=item on_reset $term	487	=item on_reset $term
148		488
149	Called after the screen is "reset" for any reason, such as resizing or	489	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	490	control sequences. Here is where you can react on changes to size-related
151	variables.	491	variables.
152		492
153	=item on_start $term	493	=item on_child_start $term, $pid
154		494
155	Called at the very end of initialisation of a new terminal, just before	495	Called just after the child process has been C<fork>ed.
156	returning to the mainloop.	496
		497	=item on_child_exit $term, $status
		498
		499	Called just after the child process has exited. C<$status> is the status
		500	from C<waitpid>.
157		501
158	=item on_sel_make $term, $eventtime	502	=item on_sel_make $term, $eventtime
159		503
160	Called whenever a selection has been made by the user, but before the	504	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	505	selection text is copied, so changes to the beginning, end or type of the
…		…
168		512
169	Called whenever a selection has been copied, but before the selection is	513	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	514	requested from the server. The selection text can be queried and changed
171	by calling C<< $term->selection >>.	515	by calling C<< $term->selection >>.
172		516
173	Returning a true value aborts selection grabbing. It will still be hilighted.	517	Returning a true value aborts selection grabbing. It will still be highlighted.
174		518
175	=item on_sel_extend $term	519	=item on_sel_extend $term
176		520
177	Called whenever the user tries to extend the selection (e.g. with a double	521	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	522	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	523	should extend the selection itself and return true to suppress the built-in
180	processing.	524	processing. This can happen multiple times, as long as the callback
		525	returns true, it will be called on every further click by the user and is
		526	supposed to enlarge the selection more and more, if possible.
181		527
182	See the F<selection> example extension.	528	See the F<selection> example extension.
183		529
184	=item on_view_change $term, $offset	530	=item on_view_change $term, $offset
185		531
186	Called whenever the view offset changes, i..e the user or program	532	Called whenever the view offset changes, i.e. the user or program
187	scrolls. Offset C<0> means display the normal terminal, positive values	533	scrolls. Offset C<0> means display the normal terminal, positive values
188	show this many lines of scrollback.	534	show this many lines of scrollback.
189		535
190	=item on_scroll_back $term, $lines, $saved	536	=item on_scroll_back $term, $lines, $saved
191		537
…		…
195		541
196	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,	542	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	543	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
198	number of lines that will be in the scrollback buffer.	544	number of lines that will be in the scrollback buffer.
199		545
200	=item on_tty_activity $term *NYI*	546	=item on_osc_seq $term, $op, $args
201		547
202	Called whenever the program(s) running in the urxvt window send output.	548	Called on every OSC sequence and can be used to suppress it or modify its
		549	behaviour. The default should be to return an empty list. A true value
		550	suppresses execution of the request completely. Make sure you don't get
		551	confused by recursive invocations when you output an osc sequence within
		552	this callback.
203		553
		554	C<on_osc_seq_perl> should be used for new behaviour.
		555
204	=item on_osc_seq $term, $string	556	=item on_osc_seq_perl $term, $string
205		557
206	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =	558	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
207	operating system command) is processed. Cursor position and other state	559	operating system command) is processed. Cursor position and other state
208	information is up-to-date when this happens. For interoperability, the	560	information is up-to-date when this happens. For interoperability, the
209	string should start with the extension name and a colon, to distinguish	561	string should start with the extension name and a colon, to distinguish
210	it from commands for other extensions, and this might be enforced in the	562	it from commands for other extensions, and this might be enforced in the
211	future.	563	future.
212		564
213	Be careful not ever to trust (in a security sense) the data you receive,	565	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	566	as its source can not easily be controlled (e-mail content, messages from
215	other users on the same system etc.).	567	other users on the same system etc.).
216		568
217	=item on_add_lines $term, $string	569	=item on_add_lines $term, $string
218		570
219	Called whenever text is about to be output, with the text as argument. You	571	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	572	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	573	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	574	might be very slow, however, as your hook is called for B<all> text being
223	output.	575	output.
224		576
		577	=item on_tt_write $term, $octets
		578
		579	Called whenever some data is written to the tty/pty and can be used to
		580	suppress or filter tty input.
		581
225	=item on_line_update $term, $row	582	=item on_line_update $term, $row
226		583
227	Called whenever a line was updated or changed. Can be used to filter	584	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	585	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,	586	that are being shown will be filtered, and, due to performance reasons,
…		…
245		602
246	=item on_refresh_end $term	603	=item on_refresh_end $term
247		604
248	Called just after the screen gets redrawn. See C<on_refresh_begin>.	605	Called just after the screen gets redrawn. See C<on_refresh_begin>.
249		606
250	=item on_keyboard_command $term, $string	607	=item on_user_command $term, $string
251		608
252	Called whenever the user presses a key combination that has a	609	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>	610	a C<perl:string> action bound to a key, see description of the B<keysym>
254	resource in the @@RXVT_NAME@@(1) manpage).	611	resource in the @@RXVT_NAME@@(1) manpage).
		612
		613	The event is simply the action string. This interface is assumed to change
		614	slightly in the future.
		615
		616	=item on_resize_all_windows $tern, $new_width, $new_height
		617
		618	Called just after the new window size has been calculated, but before
		619	windows are actually being resized or hints are being set. If this hook
		620	returns TRUE, setting of the window hints is being skipped.
		621
		622	=item on_x_event $term, $event
		623
		624	Called on every X event received on the vt window (and possibly other
		625	windows). Should only be used as a last resort. Most event structure
		626	members are not passed.
		627
		628	=item on_root_event $term, $event
		629
		630	Like C<on_x_event>, but is called for events on the root window.
255		631
256	=item on_focus_in $term	632	=item on_focus_in $term
257		633
258	Called whenever the window gets the keyboard focus, before rxvt-unicode	634	Called whenever the window gets the keyboard focus, before rxvt-unicode
259	does focus in processing.	635	does focus in processing.
260		636
261	=item on_focus_out $term	637	=item on_focus_out $term
262		638
263	Called wheneever the window loses keyboard focus, before rxvt-unicode does	639	Called whenever the window loses keyboard focus, before rxvt-unicode does
264	focus out processing.	640	focus out processing.
265		641
		642	=item on_configure_notify $term, $event
		643
		644	=item on_property_notify $term, $event
		645
266	=item on_key_press $term, $event, $octets	646	=item on_key_press $term, $event, $keysym, $octets
267		647
268	=item on_key_release $term, $event	648	=item on_key_release $term, $event, $keysym
269		649
270	=item on_button_press $term, $event	650	=item on_button_press $term, $event
271		651
272	=item on_button_release $term, $event	652	=item on_button_release $term, $event
273		653
…		…
279		659
280	Called whenever the corresponding X event is received for the terminal If	660	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.	661	the hook returns true, then the even will be ignored by rxvt-unicode.
282		662
283	The event is a hash with most values as named by Xlib (see the XEvent	663	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	664	manpage), with the additional members C<row> and C<col>, which are the
285	and column under the mouse cursor.	665	(real, not screen-based) row and column under the mouse cursor.
286		666
287	C<on_key_press> additionally receives the string rxvt-unicode would	667	C<on_key_press> additionally receives the string rxvt-unicode would
288	output, if any, in locale-specific encoding.	668	output, if any, in locale-specific encoding.
289		669
290	subwindow.	670	subwindow.
291		671
		672	=item on_client_message $term, $event
		673
		674	=item on_wm_protocols $term, $event
		675
		676	=item on_wm_delete_window $term, $event
		677
		678	Called when various types of ClientMessage events are received (all with
		679	format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
		680
292	=back	681	=back
293		682
		683	=cut
		684
		685	package urxvt;
		686
		687	use utf8;
		688	use strict;
		689	use Carp ();
		690	use Scalar::Util ();
		691	use List::Util ();
		692
		693	our $VERSION = 1;
		694	our $TERM;
		695	our @TERM_INIT;
		696	our @TERM_EXT;
		697	our @HOOKNAME;
		698	our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
		699	our %OPTION;
		700
		701	our $LIBDIR;
		702	our $RESNAME;
		703	our $RESCLASS;
		704	our $RXVTNAME;
		705
		706	our $NOCHAR = chr 0xffff;
		707
294	=head2 Variables in the C<urxvt> Package	708	=head2 Variables in the C<urxvt> Package
295		709
296	=over 4	710	=over 4
		711
		712	=item $urxvt::LIBDIR
		713
		714	The rxvt-unicode library directory, where, among other things, the perl
		715	modules and scripts are stored.
		716
		717	=item $urxvt::RESCLASS, $urxvt::RESCLASS
		718
		719	The resource class and name rxvt-unicode uses to look up X resources.
		720
		721	=item $urxvt::RXVTNAME
		722
		723	The basename of the installed binaries, usually C<urxvt>.
297		724
298	=item $urxvt::TERM	725	=item $urxvt::TERM
299		726
300	The current terminal. This variable stores the current C<urxvt::term>	727	The current terminal. This variable stores the current C<urxvt::term>
301	object, whenever a callback/hook is executing.	728	object, whenever a callback/hook is executing.
302		729
		730	=item @urxvt::TERM_INIT
		731
		732	All code references in this array will be called as methods of the next newly
		733	created C<urxvt::term> object (during the C<on_init> phase). The array
		734	gets cleared before the code references that were in it are being executed,
		735	so references can push themselves onto it again if they so desire.
		736
		737	This complements to the perl-eval command line option, but gets executed
		738	first.
		739
		740	=item @urxvt::TERM_EXT
		741
		742	Works similar to C<@TERM_INIT>, but contains perl package/class names, which
		743	get registered as normal extensions after calling the hooks in C<@TERM_INIT>
		744	but before other extensions. Gets cleared just like C<@TERM_INIT>.
		745
303	=back	746	=back
304		747
305	=head2 Functions in the C<urxvt> Package	748	=head2 Functions in the C<urxvt> Package
306		749
307	=over 4	750	=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		751
317	=item urxvt::fatal $errormessage	752	=item urxvt::fatal $errormessage
318		753
319	Fatally aborts execution with the given error message. Avoid at all	754	Fatally aborts execution with the given error message. Avoid at all
320	costs! The only time this is acceptable is when the terminal process	755	costs! The only time this is acceptable is when the terminal process
…		…
327	that calls this function.	762	that calls this function.
328		763
329	Using this function has the advantage that its output ends up in the	764	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.	765	correct place, e.g. on stderr of the connecting urxvtc client.
331		766
		767	Messages have a size limit of 1023 bytes currently.
		768
		769	=item @terms = urxvt::termlist
		770
		771	Returns all urxvt::term objects that exist in this process, regardless of
		772	whether they are started, being destroyed etc., so be careful. Only term
		773	objects that have perl extensions attached will be returned (because there
		774	is no urxvt::term objet associated with others).
		775
332	=item $time = urxvt::NOW	776	=item $time = urxvt::NOW
333		777
334	Returns the "current time" (as per the event loop).	778	Returns the "current time" (as per the event loop).
		779
		780	=item urxvt::CurrentTime
		781
		782	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
		783	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
		784	Button4Mask, Button5Mask, AnyModifier
		785
		786	=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
		787	ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
		788	PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
		789	Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
		790	KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
		791	ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
		792	FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
		793
		794	=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
		795	EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
		796	GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
		797	UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
		798	ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
		799	CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
		800	SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
		801
		802	Various constants for use in X calls and event processing.
335		803
336	=back	804	=back
337		805
338	=head2 RENDITION	806	=head2 RENDITION
339		807
…		…
366		834
367	=item $background = urxvt::GET_BASEBG $rend	835	=item $background = urxvt::GET_BASEBG $rend
368		836
369	Return the foreground/background colour index, respectively.	837	Return the foreground/background colour index, respectively.
370		838
371	=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)	839	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
372		840
373	=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)	841	=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
		842
		843	=item $rend = urxvt::SET_COLOR $rend, $new_fg, $new_bg
374		844
375	Replace the foreground/background colour in the rendition mask with the	845	Replace the foreground/background colour in the rendition mask with the
376	specified one.	846	specified one.
377		847
378	=item $value = urxvt::GET_CUSTOM ($rend)	848	=item $value = urxvt::GET_CUSTOM $rend
379		849
380	Return the "custom" value: Every rendition has 5 bits for use by	850	Return the "custom" value: Every rendition has 5 bits for use by
381	extensions. They can be set and changed as you like and are initially	851	extensions. They can be set and changed as you like and are initially
382	zero.	852	zero.
383		853
384	=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)	854	=item $rend = urxvt::SET_CUSTOM $rend, $new_value
385		855
386	Change the custom value.	856	Change the custom value.
387		857
388	=back	858	=back
389		859
390	=cut	860	=cut
391		861
392	package urxvt;
393
394	use strict;
395	use Scalar::Util ();
396
397	our $TERM;
398	our @HOOKNAME;
399	our $LIBDIR;
400
401	BEGIN {	862	BEGIN {
402	urxvt->bootstrap;
403
404	# overwrite perl's warn	863	# overwrite perl's warn
405	*CORE::GLOBAL::warn = sub {	864	*CORE::GLOBAL::warn = sub {
406	my $msg = join "", @_;	865	my $msg = join "", @_;
407	$msg .= "\n"	866	$msg .= "\n"
408	unless $msg =~ /\n$/;	867	unless $msg =~ /\n$/;
409	urxvt::warn ($msg);	868	urxvt::warn ($msg);
410	};	869	};
411	}	870	}
412		871
413	my @hook_count;	872	no warnings 'utf8';
		873
414	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};	874	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
415		875
416	sub verbose {	876	sub verbose {
417	my ($level, $msg) = @_;	877	my ($level, $msg) = @_;
418	warn "$msg\n" if $level <= $verbosity;	878	warn "$msg\n" if $level <= $verbosity;
419	}	879	}
420		880
421	# find on_xxx subs in the package and register them
422	# as hooks
423	sub register_package($) {
424	my ($pkg) = @_;
425
426	for my $htype (0.. $#HOOKNAME) {
427	my $name = $HOOKNAME[$htype];
428
429	my $ref = $pkg->can ("on_" . lc $name)
430	or next;
431
432	$TERM->{_hook}[$htype]{$pkg} = $ref;
433	$hook_count[$htype]++
434	or set_should_invoke $htype, 1;
435	}
436	}
437
438	my $extension_pkg = "extension0000";
439	my %extension_pkg;	881	my %extension_pkg;
440		882
441	# load a single script into its own package, once only	883	# load a single script into its own package, once only
442	sub extension_package($) {	884	sub extension_package($) {
443	my ($path) = @_;	885	my ($path) = @_;
444		886
445	$extension_pkg{$path} ||= do {	887	$extension_pkg{$path} ||= do {
446	my $pkg = "urxvt::" . ($extension_pkg++);	888	$path =~ /([^\/\\]+)$/;
		889	my $pkg = $1;
		890	$pkg =~ s/[^[:word:]]/_/g;
		891	$pkg = "urxvt::ext::$pkg";
447		892
448	verbose 3, "loading extension '$path' into package '$pkg'";	893	verbose 3, "loading extension '$path' into package '$pkg'";
449		894
450	open my $fh, "<:raw", $path	895	open my $fh, "<:raw", $path
451	or die "$path: $!";	896	or die "$path: $!";
452		897
453	my $source = "package $pkg; use strict; use utf8;\n"	898	my $source =
454	. "use base urxvt::term::proxy::;\n"	899	"package $pkg; use strict; use utf8; no warnings 'utf8';\n"
455	. "#line 1 \"$path\"\n{\n"	900	. "#line 1 \"$path\"\n{\n"
456	. (do { local $/; <$fh> })	901	. (do { local $/; <$fh> })
457	. "\n};\n1";	902	. "\n};\n1";
458		903
		904	eval $source
459	eval $source or die "$path: $@";	905	or die "$path: $@";
460		906
461	$pkg	907	$pkg
462	}	908	}
463	}	909	}
464		910
…		…
470	my $htype = shift;	916	my $htype = shift;
471		917
472	if ($htype == 0) { # INIT	918	if ($htype == 0) { # INIT
473	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");	919	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
474		920
		921	my %ext_arg;
		922
		923	{
		924	my @init = @TERM_INIT;
		925	@TERM_INIT = ();
		926	$_->($TERM) for @init;
		927	my @pkg = @TERM_EXT;
		928	@TERM_EXT = ();
		929	$TERM->register_package ($_) for @pkg;
		930	}
		931
475	for my $ext (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {	932	for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
		933	if ($_ eq "default") {
		934	$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
		935	} elsif (/^-(.*)$/) {
		936	delete $ext_arg{$1};
		937	} elsif (/^([^<]+)<(.*)>$/) {
		938	push @{ $ext_arg{$1} }, $2;
		939	} else {
		940	$ext_arg{$_} ||= [];
		941	}
		942	}
		943
		944	for my $ext (sort keys %ext_arg) {
476	my @files = grep -f $_, map "$_/$ext", @dirs;	945	my @files = grep -f $_, map "$_/$ext", @dirs;
477		946
478	if (@files) {	947	if (@files) {
479	register_package extension_package $files[0];	948	$TERM->register_package (extension_package $files[0], $ext_arg{$ext});
480	} else {	949	} else {
481	warn "perl extension '$ext' not found in perl library search path\n";	950	warn "perl extension '$ext' not found in perl library search path\n";
482	}	951	}
483	}	952	}
		953
		954	eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval");
		955	warn $@ if $@;
484	}	956	}
485		957
486	$retval = undef;	958	$retval = undef;
487		959
488	if (my $cb = $TERM->{_hook}[$htype]) {	960	if (my $cb = $TERM->{_hook}[$htype]) {
489	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"	961	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
490	if $verbosity >= 10;	962	if $verbosity >= 10;
491		963
492	keys %$cb;	964	for my $pkg (keys %$cb) {
		965	my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg}, @_) };
		966	$retval ||= $retval_;
493		967
494	while (my ($pkg, $cb) = each %$cb) {	968	if ($@) {
495	eval {	969	$TERM->ungrab; # better to lose the grab than the session
496	$retval = $cb->(	970	warn $@;
497	$TERM->{_pkg}{$pkg} ||= do {
498	my $proxy = bless { }, $pkg;
499	Scalar::Util::weaken ($proxy->{term} = $TERM);
500	$proxy
501	},
502	@_,
503	) and last;
504	};
505	warn $@ if $@;#d#
506	}
507	}
508
509	if ($htype == 1) { # DESTROY
510	# remove hooks if unused
511	if (my $hook = $TERM->{_hook}) {
512	for my $htype (0..$#$hook) {
513	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
514	or set_should_invoke $htype, 0;
515	}	971	}
516	}	972	}
517		973
		974	verbose 11, "$HOOKNAME[$htype] returning <$retval>"
		975	if $verbosity >= 11;
		976	}
		977
		978	if ($htype == 1) { # DESTROY
518	# clear package objects	979	# clear package objects
519	%$_ = () for values %{ $TERM->{_pkg} };	980	%$_ = () for values %{ $TERM->{_pkg} };
520		981
521	# clear package	982	# clear package
522	%$TERM = ();	983	%$TERM = ();
523	}	984	}
524		985
525	$retval	986	$retval
526	}	987	}
527		988
528	sub urxvt::term::proxy::AUTOLOAD {	989	sub SET_COLOR($$$) {
529	$urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/	990	SET_BGCOLOR (SET_FGCOLOR ($_[0], $_[1]), $_[2])
		991	}
		992
		993	sub rend2mask {
		994	no strict 'refs';
		995	my ($str, $mask) = (@_, 0);
		996	my %color = ( fg => undef, bg => undef );
		997	my @failed;
		998	for my $spec ( split /\s+/, $str ) {
		999	if ( $spec =~ /^([fb]g)[_:-]?(\d+)/i ) {
		1000	$color{lc($1)} = $2;
		1001	} else {
		1002	my $neg = $spec =~ s/^[-^]//;
		1003	unless ( exists &{"RS_$spec"} ) {
		1004	push @failed, $spec;
		1005	next;
		1006	}
		1007	my $cur = &{"RS_$spec"};
		1008	if ( $neg ) {
		1009	$mask &= ~$cur;
		1010	} else {
		1011	$mask |= $cur;
		1012	}
		1013	}
		1014	}
		1015	($mask, @color{qw(fg bg)}, \@failed)
		1016	}
		1017
		1018	# urxvt::term::extension
		1019
		1020	package urxvt::term::extension;
		1021
		1022	sub enable {
		1023	my ($self, %hook) = @_;
		1024	my $pkg = $self->{_pkg};
		1025
		1026	while (my ($name, $cb) = each %hook) {
		1027	my $htype = $HOOKTYPE{uc $name};
		1028	defined $htype
		1029	or Carp::croak "unsupported hook type '$name'";
		1030
		1031	$self->set_should_invoke ($htype, +1)
		1032	unless exists $self->{term}{_hook}[$htype]{$pkg};
		1033
		1034	$self->{term}{_hook}[$htype]{$pkg} = $cb;
		1035	}
		1036	}
		1037
		1038	sub disable {
		1039	my ($self, @hook) = @_;
		1040	my $pkg = $self->{_pkg};
		1041
		1042	for my $name (@hook) {
		1043	my $htype = $HOOKTYPE{uc $name};
		1044	defined $htype
		1045	or Carp::croak "unsupported hook type '$name'";
		1046
		1047	$self->set_should_invoke ($htype, -1)
		1048	if delete $self->{term}{_hook}[$htype]{$pkg};
		1049	}
		1050	}
		1051
		1052	our $AUTOLOAD;
		1053
		1054	sub AUTOLOAD {
		1055	$AUTOLOAD =~ /:([^:]+)$/
530	or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";	1056	or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
531		1057
532	eval qq{	1058	eval qq{
533	sub $urxvt::term::proxy::AUTOLOAD {	1059	sub $AUTOLOAD {
534	my \$proxy = shift;	1060	my \$proxy = shift;
535	\$proxy->{term}->$1 (\@_)	1061	\$proxy->{term}->$1 (\@_)
536	}	1062	}
537	1	1063	1
538	} or die "FATAL: unable to compile method forwarder: $@";	1064	} or die "FATAL: unable to compile method forwarder: $@";
539		1065
540	goto &$urxvt::term::proxy::AUTOLOAD;	1066	goto &$AUTOLOAD;
541	}	1067	}
		1068
		1069	sub DESTROY {
		1070	# nop
		1071	}
		1072
		1073	# urxvt::destroy_hook
542		1074
543	sub urxvt::destroy_hook::DESTROY {	1075	sub urxvt::destroy_hook::DESTROY {
544	${$_[0]}->();	1076	${$_[0]}->();
545	}	1077	}
546		1078
547	sub urxvt::destroy_hook(&) {	1079	sub urxvt::destroy_hook(&) {
548	bless \shift, urxvt::destroy_hook::	1080	bless \shift, urxvt::destroy_hook::
549	}	1081	}
550		1082
		1083	package urxvt::anyevent;
		1084
		1085	=head2 The C<urxvt::anyevent> Class
		1086
		1087	The sole purpose of this class is to deliver an interface to the
		1088	C<AnyEvent> module - any module using it will work inside urxvt without
		1089	further programming. The only exception is that you cannot wait on
		1090	condition variables, but non-blocking condvar use is ok. What this means
		1091	is that you cannot use blocking APIs, but the non-blocking variant should
		1092	work.
		1093
		1094	=cut
		1095
		1096	our $VERSION = 1;
		1097
		1098	$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
		1099	push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
		1100
		1101	sub timer {
		1102	my ($class, %arg) = @_;
		1103
		1104	my $cb = $arg{cb};
		1105
		1106	urxvt::timer
		1107	->new
		1108	->start (urxvt::NOW + $arg{after})
		1109	->cb (sub {
		1110	$_[0]->stop; # need to cancel manually
		1111	$cb->();
		1112	})
		1113	}
		1114
		1115	sub io {
		1116	my ($class, %arg) = @_;
		1117
		1118	my $cb = $arg{cb};
		1119
		1120	bless [$arg{fh}, urxvt::iow
		1121	->new
		1122	->fd (fileno $arg{fh})
		1123	->events (($arg{poll} =~ /r/ ? 1 : 0)
		1124	| ($arg{poll} =~ /w/ ? 2 : 0))
		1125	->start
		1126	->cb (sub {
		1127	$cb->(($_[1] & 1 ? 'r' : '')
		1128	. ($_[1] & 2 ? 'w' : ''));
		1129	})],
		1130	urxvt::anyevent::
		1131	}
		1132
		1133	sub DESTROY {
		1134	$_[0][1]->stop;
		1135	}
		1136
		1137	sub condvar {
		1138	bless \my $flag, urxvt::anyevent::
		1139	}
		1140
		1141	sub broadcast {
		1142	${$_[0]}++;
		1143	}
		1144
		1145	sub wait {
		1146	unless (${$_[0]}) {
		1147	Carp::croak "AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API";
		1148	}
		1149	}
		1150
		1151	sub one_event {
		1152	Carp::croak "AnyEvent->one_event blocking wait unsupported in urxvt, use a non-blocking API";
		1153	}
		1154
		1155	package urxvt::term;
		1156
551	=head2 The C<urxvt::term> Class	1157	=head2 The C<urxvt::term> Class
552		1158
553	=over 4	1159	=over 4
554		1160
		1161	=cut
		1162
		1163	# find on_xxx subs in the package and register them
		1164	# as hooks
		1165	sub register_package {
		1166	my ($self, $pkg, $argv) = @_;
		1167
		1168	no strict 'refs';
		1169
		1170	urxvt::verbose 6, "register package $pkg to $self";
		1171
		1172	@{"$pkg\::ISA"} = urxvt::term::extension::;
		1173
		1174	my $proxy = bless {
		1175	_pkg => $pkg,
		1176	argv => $argv,
		1177	}, $pkg;
		1178	Scalar::Util::weaken ($proxy->{term} = $self);
		1179
		1180	$self->{_pkg}{$pkg} = $proxy;
		1181
		1182	for my $name (@HOOKNAME) {
		1183	if (my $ref = $pkg->can ("on_" . lc $name)) {
		1184	$proxy->enable ($name => $ref);
		1185	}
		1186	}
		1187	}
		1188
		1189	=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
		1190
		1191	Creates a new terminal, very similar as if you had started it with system
		1192	C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
		1193	hash which defines the environment of the new terminal.
		1194
		1195	Croaks (and probably outputs an error message) if the new instance
		1196	couldn't be created. Returns C<undef> if the new instance didn't
		1197	initialise perl, and the terminal object otherwise. The C<init> and
		1198	C<start> hooks will be called before this call returns, and are free to
		1199	refer to global data (which is race free).
		1200
		1201	=cut
		1202
		1203	sub new {
		1204	my ($class, $env, @args) = @_;
		1205
		1206	$env or Carp::croak "environment hash missing in call to urxvt::term->new";
		1207	@args or Carp::croak "name argument missing in call to urxvt::term->new";
		1208
		1209	_new ([ map "$_=$env->{$_}", keys %$env ], \@args);
		1210	}
		1211
555	=item $term->destroy	1212	=item $term->destroy
556		1213
557	Destroy the terminal object (close the window, free resources etc.).	1214	Destroy the terminal object (close the window, free resources
		1215	etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
		1216	watchers (timers, io watchers) are still active.
		1217
		1218	=item $term->exec_async ($cmd[, @args])
		1219
		1220	Works like the combination of the C<fork>/C<exec> builtins, which executes
		1221	("starts") programs in the background. This function takes care of setting
		1222	the user environment before exec'ing the command (e.g. C<PATH>) and should
		1223	be preferred over explicit calls to C<exec> or C<system>.
		1224
		1225	Returns the pid of the subprocess or C<undef> on error.
		1226
		1227	=cut
		1228
		1229	sub exec_async {
		1230	my $self = shift;
		1231
		1232	my $pid = fork;
		1233
		1234	return $pid
		1235	if !defined $pid or $pid;
		1236
		1237	%ENV = %{ $self->env };
		1238
		1239	exec @_;
		1240	urxvt::_exit 255;
		1241	}
		1242
		1243	=item $isset = $term->option ($optval[, $set])
		1244
		1245	Returns true if the option specified by C<$optval> is enabled, and
		1246	optionally change it. All option values are stored by name in the hash
		1247	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
		1248
		1249	Here is a likely non-exhaustive list of option names, please see the
		1250	source file F</src/optinc.h> to see the actual list:
		1251
		1252	borderLess console cursorBlink cursorUnderline hold iconic insecure
		1253	intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
		1254	override-redirect pastableTabs pointerBlank reverseVideo scrollBar
		1255	scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
		1256	scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
		1257	transparent tripleclickwords utmpInhibit visualBell
558		1258
559	=item $value = $term->resource ($name[, $newval])	1259	=item $value = $term->resource ($name[, $newval])
560		1260
561	Returns the current resource value associated with a given name and	1261	Returns the current resource value associated with a given name and
562	optionally sets a new value. Setting values is most useful in the C<init>	1262	optionally sets a new value. Setting values is most useful in the C<init>
…		…
571	likely change).	1271	likely change).
572		1272
573	Please note that resource strings will currently only be freed when the	1273	Please note that resource strings will currently only be freed when the
574	terminal is destroyed, so changing options frequently will eat memory.	1274	terminal is destroyed, so changing options frequently will eat memory.
575		1275
576	Here is a a likely non-exhaustive list of resource names, not all of which	1276	Here is a likely non-exhaustive list of resource names, not all of which
577	are supported in every build, please see the source to see the actual	1277	are supported in every build, please see the source file F</src/rsinc.h>
578	list:	1278	to see the actual list:
579		1279
580	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont	1280	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
581	borderLess color cursorBlink cursorUnderline cutchars delete_key	1281	borderLess color cursorBlink cursorUnderline cutchars delete_key
582	display_name embed ext_bwidth fade font geometry hold iconName	1282	display_name embed ext_bwidth fade font geometry hold iconName
583	imFont imLocale inputMethod insecure int_bwidth intensityStyles	1283	imFont imLocale inputMethod insecure int_bwidth intensityStyles
584	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier	1284	italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
585	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2	1285	mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
586	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd	1286	perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
587	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating	1287	preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
588	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput	1288	scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
589	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle	1289	scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
590	shade term_name title transparent transparent_all tripleclickwords	1290	secondaryScreen secondaryScroll selectstyle shade term_name title
591	utmpInhibit visualBell	1291	transient_for transparent transparent_all tripleclickwords utmpInhibit
		1292	visualBell
592		1293
593	=cut	1294	=cut
594		1295
595	sub urxvt::term::resource($$;$) {	1296	sub resource($$;$) {
596	my ($self, $name) = (shift, shift);	1297	my ($self, $name) = (shift, shift);
597	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);	1298	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
598	&urxvt::term::_resource	1299	&urxvt::term::_resource
599	}	1300	}
600		1301
		1302	=item $value = $term->x_resource ($pattern)
		1303
		1304	Returns the X-Resource for the given pattern, excluding the program or
		1305	class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
		1306	same value as used by this instance of rxvt-unicode. Returns C<undef> if no
		1307	resource with that pattern exists.
		1308
		1309	This method should only be called during the C<on_start> hook, as there is
		1310	only one resource database per display, and later invocations might return
		1311	the wrong resources.
		1312
		1313	=item $success = $term->parse_keysym ($keysym_spec, $command_string)
		1314
		1315	Adds a keymap translation exactly as specified via a resource. See the
		1316	C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
		1317
601	=item $rend = $term->rstyle ([$new_rstyle])	1318	=item $rend = $term->rstyle ([$new_rstyle])
602		1319
603	Return and optionally change the current rendition. Text that is output by	1320	Return and optionally change the current rendition. Text that is output by
604	the terminal application will use this style.	1321	the terminal application will use this style.
605		1322
…		…
615	=item ($row, $col) = $term->selection_end ([$row, $col])	1332	=item ($row, $col) = $term->selection_end ([$row, $col])
616		1333
617	Return the current values of the selection mark, begin or end positions,	1334	Return the current values of the selection mark, begin or end positions,
618	and optionally set them to new values.	1335	and optionally set them to new values.
619		1336
		1337	=item $term->selection_make ($eventtime[, $rectangular])
		1338
		1339	Tries to make a selection as set by C<selection_beg> and
		1340	C<selection_end>. If C<$rectangular> is true (default: false), a
		1341	rectangular selection will be made. This is the prefered function to make
		1342	a selection.
		1343
620	=item $success = $term->selection_grab ($eventtime)	1344	=item $success = $term->selection_grab ($eventtime)
621		1345
622	Try to request the primary selection from the server (for example, as set	1346	Try to request the primary selection text from the server (for example, as
623	by the next method).	1347	set by the next method). No visual feedback will be given. This function
		1348	is mostly useful from within C<on_sel_grab> hooks.
624		1349
625	=item $oldtext = $term->selection ([$newtext])	1350	=item $oldtext = $term->selection ([$newtext])
626		1351
627	Return the current selection text and optionally replace it by C<$newtext>.	1352	Return the current selection text and optionally replace it by C<$newtext>.
628		1353
629	#=item $term->overlay ($x, $y, $text)	1354	=item $term->overlay_simple ($x, $y, $text)
630	#	1355
631	#Create a simple multi-line overlay box. See the next method for details.	1356	Create a simple multi-line overlay box. See the next method for details.
632	#	1357
633	#=cut	1358	=cut
634	#	1359
635	#sub urxvt::term::scr_overlay {	1360	sub overlay_simple {
636	# my ($self, $x, $y, $text) = @_;	1361	my ($self, $x, $y, $text) = @_;
637	#	1362
638	# my @lines = split /\n/, $text;	1363	my @lines = split /\n/, $text;
639	#	1364
640	# my $w = 0;	1365	my $w = List::Util::max map $self->strwidth ($_), @lines;
641	# for (map $self->strwidth ($_), @lines) {	1366
642	# $w = $_ if $w < $_;
643	# }
644	#
645	# $self->scr_overlay_new ($x, $y, $w, scalar @lines);	1367	my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
646	# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;	1368	$overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
647	#}	1369
		1370	$overlay
		1371	}
648		1372
649	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])	1373	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
650		1374
651	Create a new (empty) overlay at the given position with the given	1375	Create a new (empty) overlay at the given position with the given
652	width/height. C<$rstyle> defines the initial rendition style	1376	width/height. C<$rstyle> defines the initial rendition style
…		…
687	C<$event> I<must> be the event causing the menu to pop up (a button event,	1411	C<$event> I<must> be the event causing the menu to pop up (a button event,
688	currently).	1412	currently).
689		1413
690	=cut	1414	=cut
691		1415
692	sub urxvt::term::popup {	1416	sub popup {
693	my ($self, $event) = @_;	1417	my ($self, $event) = @_;
694		1418
695	$self->grab ($event->{time}, 1)	1419	$self->grab ($event->{time}, 1)
696	or return;	1420	or return;
697		1421
…		…
719		1443
720	=item $string = $term->locale_decode ($octets)	1444	=item $string = $term->locale_decode ($octets)
721		1445
722	Convert the given locale-encoded octets into a perl string.	1446	Convert the given locale-encoded octets into a perl string.
723		1447
		1448	=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
		1449
		1450	XORs the rendition values in the given span with the provided value
		1451	(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
		1452	refresh hooks to provide effects similar to the selection.
		1453
		1454	=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
		1455
		1456	Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
		1457	whitespace will additionally be xored with the C<$rstyle2>, which defaults
		1458	to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
		1459	it instead. Both styles I<MUST NOT> contain font styles.
		1460
		1461	=item $term->scr_bell
		1462
		1463	Ring the bell!
		1464
724	=item $term->scr_add_lines ($string)	1465	=item $term->scr_add_lines ($string)
725		1466
726	Write the given text string to the screen, as if output by the application	1467	Write the given text string to the screen, as if output by the application
727	running inside the terminal. It may not contain command sequences (escape	1468	running inside the terminal. It may not contain command sequences (escape
728	codes), but is free to use line feeds, carriage returns and tabs. The	1469	codes), but is free to use line feeds, carriage returns and tabs. The
…		…
730		1471
731	Normally its not a good idea to use this function, as programs might be	1472	Normally its not a good idea to use this function, as programs might be
732	confused by changes in cursor position or scrolling. Its useful inside a	1473	confused by changes in cursor position or scrolling. Its useful inside a
733	C<on_add_lines> hook, though.	1474	C<on_add_lines> hook, though.
734		1475
		1476	=item $term->scr_change_screen ($screen)
		1477
		1478	Switch to given screen - 0 primary, 1 secondary.
		1479
735	=item $term->cmd_parse ($octets)	1480	=item $term->cmd_parse ($octets)
736		1481
737	Similar to C<scr_add_lines>, but the argument must be in the	1482	Similar to C<scr_add_lines>, but the argument must be in the
738	locale-specific encoding of the terminal and can contain command sequences	1483	locale-specific encoding of the terminal and can contain command sequences
739	(escape codes) that will be interpreted.	1484	(escape codes) that will be interpreted.
…		…
742		1487
743	Write the octets given in C<$data> to the tty (i.e. as program input). To	1488	Write the octets given in C<$data> to the tty (i.e. as program input). To
744	pass characters instead of octets, you should convert your strings first	1489	pass characters instead of octets, you should convert your strings first
745	to the locale-specific encoding using C<< $term->locale_encode >>.	1490	to the locale-specific encoding using C<< $term->locale_encode >>.
746		1491
		1492	=item $old_events = $term->pty_ev_events ([$new_events])
		1493
		1494	Replaces the event mask of the pty watcher by the given event mask. Can
		1495	be used to suppress input and output handling to the pty/tty. See the
		1496	description of C<< urxvt::timer->events >>. Make sure to always restore
		1497	the previous value.
		1498
		1499	=item $fd = $term->pty_fd
		1500
		1501	Returns the master file descriptor for the pty in use, or C<-1> if no pty
		1502	is used.
		1503
747	=item $windowid = $term->parent	1504	=item $windowid = $term->parent
748		1505
749	Return the window id of the toplevel window.	1506	Return the window id of the toplevel window.
750		1507
751	=item $windowid = $term->vt	1508	=item $windowid = $term->vt
752		1509
753	Return the window id of the terminal window.	1510	Return the window id of the terminal window.
754		1511
		1512	=item $term->vt_emask_add ($x_event_mask)
		1513
		1514	Adds the specified events to the vt event mask. Useful e.g. when you want
		1515	to receive pointer events all the times:
		1516
		1517	$term->vt_emask_add (urxvt::PointerMotionMask);
		1518
		1519	=item $term->focus_in
		1520
		1521	=item $term->focus_out
		1522
		1523	=item $term->key_press ($state, $keycode[, $time])
		1524
		1525	=item $term->key_release ($state, $keycode[, $time])
		1526
		1527	Deliver various fake events to to terminal.
		1528
755	=item $window_width = $term->width	1529	=item $window_width = $term->width
756		1530
757	=item $window_height = $term->height	1531	=item $window_height = $term->height
758		1532
759	=item $font_width = $term->fwidth	1533	=item $font_width = $term->fwidth
…		…
772		1546
773	=item $max_scrollback = $term->saveLines	1547	=item $max_scrollback = $term->saveLines
774		1548
775	=item $nrow_plus_saveLines = $term->total_rows	1549	=item $nrow_plus_saveLines = $term->total_rows
776		1550
777	=item $lines_in_scrollback = $term->nsaved	1551	=item $topmost_scrollback_row = $term->top_row
778		1552
779	Return various integers describing terminal characteristics.	1553	Return various integers describing terminal characteristics.
780		1554
		1555	=item $x_display = $term->display_id
		1556
		1557	Return the DISPLAY used by rxvt-unicode.
		1558
		1559	=item $lc_ctype = $term->locale
		1560
		1561	Returns the LC_CTYPE category string used by this rxvt-unicode.
		1562
		1563	=item $env = $term->env
		1564
		1565	Returns a copy of the environment in effect for the terminal as a hashref
		1566	similar to C<\%ENV>.
		1567
		1568	=item @envv = $term->envv
		1569
		1570	Returns the environment as array of strings of the form C<VAR=VALUE>.
		1571
		1572	=item @argv = $term->argv
		1573
		1574	Return the argument vector as this terminal, similar to @ARGV, but
		1575	includes the program name as first element.
		1576
		1577	=cut
		1578
		1579	sub env {
		1580	+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), $_[0]->envv }
		1581	}
		1582
		1583	=item $modifiermask = $term->ModLevel3Mask
		1584
		1585	=item $modifiermask = $term->ModMetaMask
		1586
		1587	=item $modifiermask = $term->ModNumLockMask
		1588
		1589	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
		1590	AltGr), the meta key (often Alt) and the num lock key, if applicable.
		1591
		1592	=item $screen = $term->current_screen
		1593
		1594	Returns the currently displayed screen (0 primary, 1 secondary).
		1595
		1596	=item $cursor_is_hidden = $term->hidden_cursor
		1597
		1598	Returns whether the cursor is currently hidden or not.
		1599
781	=item $view_start = $term->view_start ([$newvalue])	1600	=item $view_start = $term->view_start ([$newvalue])
782		1601
783	Returns the negative row number of the topmost line. Minimum value is	1602	Returns the row number of the topmost displayed line. Maximum value is
784	C<0>, which displays the normal terminal contents. Larger values scroll	1603	C<0>, which displays the normal terminal contents. Lower values scroll
785	this many lines into the scrollback buffer.	1604	this many lines into the scrollback buffer.
786		1605
787	=item $term->want_refresh	1606	=item $term->want_refresh
788		1607
789	Requests a screen refresh. At the next opportunity, rxvt-unicode will	1608	Requests a screen refresh. At the next opportunity, rxvt-unicode will
…		…
804	line, starting at column C<$start_col> (default C<0>), which is useful	1623	line, starting at column C<$start_col> (default C<0>), which is useful
805	to replace only parts of a line. The font index in the rendition will	1624	to replace only parts of a line. The font index in the rendition will
806	automatically be updated.	1625	automatically be updated.
807		1626
808	C<$text> is in a special encoding: tabs and wide characters that use more	1627	C<$text> is in a special encoding: tabs and wide characters that use more
809	than one cell when displayed are padded with urxvt::NOCHAR characters	1628	than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
810	(C<chr 65535>). Characters with combining characters and other characters	1629	characters. Characters with combining characters and other characters that
811	that do not fit into the normal tetx encoding will be replaced with	1630	do not fit into the normal text encoding will be replaced with characters
812	characters in the private use area.	1631	in the private use area.
813		1632
814	You have to obey this encoding when changing text. The advantage is	1633	You have to obey this encoding when changing text. The advantage is
815	that C<substr> and similar functions work on screen cells and not on	1634	that C<substr> and similar functions work on screen cells and not on
816	characters.	1635	characters.
817		1636
…		…
868	Return the row number of the first/last row of the line, respectively.	1687	Return the row number of the first/last row of the line, respectively.
869		1688
870	=item $offset = $line->offset_of ($row, $col)	1689	=item $offset = $line->offset_of ($row, $col)
871		1690
872	Returns the character offset of the given row|col pair within the logical	1691	Returns the character offset of the given row|col pair within the logical
873	line.	1692	line. Works for rows outside the line, too, and returns corresponding
		1693	offsets outside the string.
874		1694
875	=item ($row, $col) = $line->coord_of ($offset)	1695	=item ($row, $col) = $line->coord_of ($offset)
876		1696
877	Translates a string offset into terminal coordinates again.	1697	Translates a string offset into terminal coordinates again.
878		1698
879	=back	1699	=back
880		1700
881	=cut	1701	=cut
882		1702
883	sub urxvt::term::line {	1703	sub line {
884	my ($self, $row) = @_;	1704	my ($self, $row) = @_;
885		1705
886	my $maxrow = $self->nrow - 1;	1706	my $maxrow = $self->nrow - 1;
887		1707
888	my ($beg, $end) = ($row, $row);	1708	my ($beg, $end) = ($row, $row);
…		…
952	$offset / $self->{ncol} + $self->{beg},	1772	$offset / $self->{ncol} + $self->{beg},
953	$offset % $self->{ncol}	1773	$offset % $self->{ncol}
954	)	1774	)
955	}	1775	}
956		1776
957	=item ($row, $col) = $line->coord_of ($offset)
958	=item $text = $term->special_encode $string	1777	=item $text = $term->special_encode $string
959		1778
960	Converts a perl string into the special encoding used by rxvt-unicode,	1779	Converts a perl string into the special encoding used by rxvt-unicode,
961	where one character corresponds to one screen cell. See	1780	where one character corresponds to one screen cell. See
962	C<< $term->ROW_t >> for details.	1781	C<< $term->ROW_t >> for details.
963		1782
964	=item $string = $term->special_decode $text	1783	=item $string = $term->special_decode $text
965		1784
966	Converts rxvt-unicodes text reprsentation into a perl string. See	1785	Converts rxvt-unicodes text representation into a perl string. See
967	C<< $term->ROW_t >> for details.	1786	C<< $term->ROW_t >> for details.
968		1787
		1788	=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
		1789
		1790	=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
		1791
		1792	Register/unregister a synchronous button grab. See the XGrabButton
		1793	manpage.
		1794
		1795	=item $success = $term->grab ($eventtime[, $sync])
		1796
		1797	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
		1798	synchronous (C<$sync> is true). Also remembers the grab timestamp.
		1799
		1800	=item $term->allow_events_async
		1801
		1802	Calls XAllowEvents with AsyncBoth for the most recent grab.
		1803
		1804	=item $term->allow_events_sync
		1805
		1806	Calls XAllowEvents with SyncBoth for the most recent grab.
		1807
		1808	=item $term->allow_events_replay
		1809
		1810	Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
		1811	recent grab.
		1812
		1813	=item $term->ungrab
		1814
		1815	Calls XUngrab for the most recent grab. Is called automatically on
		1816	evaluation errors, as it is better to lose the grab in the error case as
		1817	the session.
		1818
		1819	=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
		1820
		1821	=item $atom_name = $term->XGetAtomName ($atom)
		1822
		1823	=item @atoms = $term->XListProperties ($window)
		1824
		1825	=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
		1826
		1827	=item $term->XChangeWindowProperty ($window, $property, $type, $format, $octets)
		1828
		1829	=item $term->XDeleteProperty ($window, $property)
		1830
		1831	=item $window = $term->DefaultRootWindow
		1832
		1833	=item $term->XReparentWindow ($window, $parent, [$x, $y])
		1834
		1835	=item $term->XMapWindow ($window)
		1836
		1837	=item $term->XUnmapWindow ($window)
		1838
		1839	=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
		1840
		1841	=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
		1842
		1843	=item $term->XChangeInput ($window, $add_events[, $del_events])
		1844
		1845	Various X or X-related functions. The C<$term> object only serves as
		1846	the source of the display, otherwise those functions map more-or-less
		1847	directory onto the X functions of the same name.
		1848
969	=back	1849	=back
970		1850
		1851	=cut
		1852
		1853	package urxvt::popup;
		1854
971	=head2 The C<urxvt::popup> Class	1855	=head2 The C<urxvt::popup> Class
972		1856
973	=over 4	1857	=over 4
974		1858
975	=cut	1859	=cut
976
977	package urxvt::popup;
978		1860
979	sub add_item {	1861	sub add_item {
980	my ($self, $item) = @_;	1862	my ($self, $item) = @_;
981		1863
		1864	$item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal};
		1865	$item->{rend}{hover} = "\x1b[0;30;46m" unless exists $item->{rend}{hover};
		1866	$item->{rend}{active} = "\x1b[m" unless exists $item->{rend}{active};
		1867
		1868	$item->{render} ||= sub { $_[0]{text} };
		1869
982	push @{ $self->{item} }, $item;	1870	push @{ $self->{item} }, $item;
983	}	1871	}
		1872
		1873	=item $popup->add_title ($title)
		1874
		1875	Adds a non-clickable title to the popup.
		1876
		1877	=cut
		1878
		1879	sub add_title {
		1880	my ($self, $title) = @_;
		1881
		1882	$self->add_item ({
		1883	rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
		1884	text => $title,
		1885	activate => sub { },
		1886	});
		1887	}
		1888
		1889	=item $popup->add_separator ([$sepchr])
		1890
		1891	Creates a separator, optionally using the character given as C<$sepchr>.
		1892
		1893	=cut
		1894
		1895	sub add_separator {
		1896	my ($self, $sep) = @_;
		1897
		1898	$sep ||= "=";
		1899
		1900	$self->add_item ({
		1901	rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
		1902	text => "",
		1903	render => sub { $sep x $self->{term}->ncol },
		1904	activate => sub { },
		1905	});
		1906	}
		1907
		1908	=item $popup->add_button ($text, $cb)
		1909
		1910	Adds a clickable button to the popup. C<$cb> is called whenever it is
		1911	selected.
		1912
		1913	=cut
984		1914
985	sub add_button {	1915	sub add_button {
986	my ($self, $text, $cb) = @_;	1916	my ($self, $text, $cb) = @_;
987		1917
988	$self->add_item ({ type => "button", text => "[ $text ]", activate => $cb });	1918	$self->add_item ({ type => "button", text => $text, activate => $cb});
989	}	1919	}
		1920
		1921	=item $popup->add_toggle ($text, $initial_value, $cb)
		1922
		1923	Adds a toggle/checkbox item to the popup. The callback gets called
		1924	whenever it gets toggled, with a boolean indicating its new value as its
		1925	first argument.
		1926
		1927	=cut
		1928
		1929	sub add_toggle {
		1930	my ($self, $text, $value, $cb) = @_;
		1931
		1932	my $item; $item = {
		1933	type => "button",
		1934	text => " $text",
		1935	value => $value,
		1936	render => sub { ($_[0]{value} ? "* " : " ") . $text },
		1937	activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
		1938	};
		1939
		1940	$self->add_item ($item);
		1941	}
		1942
		1943	=item $popup->show
		1944
		1945	Displays the popup (which is initially hidden).
		1946
		1947	=cut
990		1948
991	sub show {	1949	sub show {
992	my ($self) = @_;	1950	my ($self) = @_;
993		1951
994	local $urxvt::popup::self = $self;	1952	local $urxvt::popup::self = $self;
995		1953
996	urxvt->new ("--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0,	1954	my $env = $self->{term}->env;
		1955	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
		1956	delete $env->{LC_ALL};
		1957	$env->{LC_CTYPE} = $self->{term}->locale;
		1958
		1959	urxvt::term->new ($env, "popup",
		1960	"--perl-lib" => "", "--perl-ext-common" => "",
		1961	"-pty-fd" => -1, "-sl" => 0,
		1962	"-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
997	"--transient-for" => $self->{term}->parent,	1963	"--transient-for" => $self->{term}->parent,
		1964	"-display" => $self->{term}->display_id,
998	"-pe" => "urxvt-popup")	1965	"-pe" => "urxvt-popup")
999	or die "unable to create popup window\n";	1966	or die "unable to create popup window\n";
1000	}	1967	}
1001		1968
1002	sub DESTROY {	1969	sub DESTROY {
1003	my ($self) = @_;	1970	my ($self) = @_;
1004		1971
		1972	delete $self->{term}{_destroy}{$self};
1005	$self->{term}->ungrab;	1973	$self->{term}->ungrab;
1006	}	1974	}
		1975
		1976	=back
		1977
		1978	=cut
		1979
		1980	package urxvt::watcher;
1007		1981
1008	=head2 The C<urxvt::timer> Class	1982	=head2 The C<urxvt::timer> Class
1009		1983
1010	This class implements timer watchers/events. Time is represented as a	1984	This class implements timer watchers/events. Time is represented as a
1011	fractional number of seconds since the epoch. Example:	1985	fractional number of seconds since the epoch. Example:
…		…
1015	->new	1989	->new
1016	->interval (1)	1990	->interval (1)
1017	->cb (sub {	1991	->cb (sub {
1018	$term->{overlay}->set (0, 0,	1992	$term->{overlay}->set (0, 0,
1019	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);	1993	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
1020	});	1994	});
1021		1995
1022	=over 4	1996	=over 4
1023		1997
1024	=item $timer = new urxvt::timer	1998	=item $timer = new urxvt::timer
1025		1999
…		…
1049	Start the timer.	2023	Start the timer.
1050		2024
1051	=item $timer = $timer->start ($tstamp)	2025	=item $timer = $timer->start ($tstamp)
1052		2026
1053	Set the event trigger time to C<$tstamp> and start the timer.	2027	Set the event trigger time to C<$tstamp> and start the timer.
		2028
		2029	=item $timer = $timer->after ($delay)
		2030
		2031	Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1054		2032
1055	=item $timer = $timer->stop	2033	=item $timer = $timer->stop
1056		2034
1057	Stop the timer.	2035	Stop the timer.
1058		2036
…		…
1064		2042
1065	$term->{socket} = ...	2043	$term->{socket} = ...
1066	$term->{iow} = urxvt::iow	2044	$term->{iow} = urxvt::iow
1067	->new	2045	->new
1068	->fd (fileno $term->{socket})	2046	->fd (fileno $term->{socket})
1069	->events (1) # wait for read data	2047	->events (urxvt::EV_READ)
1070	->start	2048	->start
1071	->cb (sub {	2049	->cb (sub {
1072	my ($iow, $revents) = @_;	2050	my ($iow, $revents) = @_;
1073	# $revents must be 1 here, no need to check	2051	# $revents must be 1 here, no need to check
1074	sysread $term->{socket}, my $buf, 8192	2052	sysread $term->{socket}, my $buf, 8192
…		…
1087	Set the callback to be called when io events are triggered. C<$reventmask>	2065	Set the callback to be called when io events are triggered. C<$reventmask>
1088	is a bitset as described in the C<events> method.	2066	is a bitset as described in the C<events> method.
1089		2067
1090	=item $iow = $iow->fd ($fd)	2068	=item $iow = $iow->fd ($fd)
1091		2069
1092	Set the filedescriptor (not handle) to watch.	2070	Set the file descriptor (not handle) to watch.
1093		2071
1094	=item $iow = $iow->events ($eventmask)	2072	=item $iow = $iow->events ($eventmask)
1095		2073
1096	Set the event mask to watch. Bit #0 (value C<1>) enables watching for read	2074	Set the event mask to watch. The only allowed values are
1097	data, Bit #1 (value C<2>) enables watching for write data.	2075	C<urxvt::EV_READ> and C<urxvt::EV_WRITE>, which might be ORed
		2076	together, or C<urxvt::EV_NONE>.
1098		2077
1099	=item $iow = $iow->start	2078	=item $iow = $iow->start
1100		2079
1101	Start watching for requested events on the given handle.	2080	Start watching for requested events on the given handle.
1102		2081
1103	=item $iow = $iow->stop	2082	=item $iow = $iow->stop
1104		2083
1105	Stop watching for events on the given filehandle.	2084	Stop watching for events on the given file handle.
		2085
		2086	=back
		2087
		2088	=head2 The C<urxvt::iw> Class
		2089
		2090	This class implements idle watchers, that get called automatically when
		2091	the process is idle. They should return as fast as possible, after doing
		2092	some useful work.
		2093
		2094	=over 4
		2095
		2096	=item $iw = new urxvt::iw
		2097
		2098	Create a new idle watcher object in stopped state.
		2099
		2100	=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
		2101
		2102	Set the callback to be called when the watcher triggers.
		2103
		2104	=item $timer = $timer->start
		2105
		2106	Start the watcher.
		2107
		2108	=item $timer = $timer->stop
		2109
		2110	Stop the watcher.
		2111
		2112	=back
		2113
		2114	=head2 The C<urxvt::pw> Class
		2115
		2116	This class implements process watchers. They create an event whenever a
		2117	process exits, after which they stop automatically.
		2118
		2119	my $pid = fork;
		2120	...
		2121	$term->{pw} = urxvt::pw
		2122	->new
		2123	->start ($pid)
		2124	->cb (sub {
		2125	my ($pw, $exit_status) = @_;
		2126	...
		2127	});
		2128
		2129	=over 4
		2130
		2131	=item $pw = new urxvt::pw
		2132
		2133	Create a new process watcher in stopped state.
		2134
		2135	=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
		2136
		2137	Set the callback to be called when the timer triggers.
		2138
		2139	=item $pw = $timer->start ($pid)
		2140
		2141	Tells the watcher to start watching for process C<$pid>.
		2142
		2143	=item $pw = $pw->stop
		2144
		2145	Stop the watcher.
1106		2146
1107	=back	2147	=back
1108		2148
1109	=head1 ENVIRONMENT	2149	=head1 ENVIRONMENT
1110		2150
…		…
1113	This variable controls the verbosity level of the perl extension. Higher	2153	This variable controls the verbosity level of the perl extension. Higher
1114	numbers indicate more verbose output.	2154	numbers indicate more verbose output.
1115		2155
1116	=over 4	2156	=over 4
1117		2157
1118	=item =0 - only fatal messages	2158	=item == 0 - fatal messages
1119		2159
1120	=item =3 - script loading and management	2160	=item >= 3 - script loading and management
1121		2161
1122	=item =10 - all events received	2162	=item >=10 - all called hooks
		2163
		2164	=item >=11 - hook return values
1123		2165
1124	=back	2166	=back
1125		2167
1126	=head1 AUTHOR	2168	=head1 AUTHOR
1127		2169
…		…
1129	http://software.schmorp.de/pkg/rxvt-unicode	2171	http://software.schmorp.de/pkg/rxvt-unicode
1130		2172
1131	=cut	2173	=cut
1132		2174
1133	1	2175	1
		2176
		2177	# vim: sw=3:

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