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Revision 1.43 by root, Sat Jan 7 04:19:43 2006 UTC vs.
Revision 1.173 by root, Wed Nov 5 12:45:36 2008 UTC

…		…
17		17
18	@@RXVT_NAME@@ --perl-lib $HOME -pe grab_test	18	@@RXVT_NAME@@ --perl-lib $HOME -pe grab_test
19		19
20	=head1 DESCRIPTION	20	=head1 DESCRIPTION
21		21
22	Everytime a terminal object gets created, scripts specified via the	22	Every time a terminal object gets created, extension scripts specified via
23	C<perl> resource are loaded and associated with it.	23	the C<perl> resource are loaded and associated with it.
24		24
25	Scripts are compiled in a 'use strict' and 'use utf8' environment, and	25	Scripts are compiled in a 'use strict' and 'use utf8' environment, and
26	thus must be encoded as UTF-8.	26	thus must be encoded as UTF-8.
27		27
28	Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where	28	Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where
29	scripts will be shared (but not enabled) for all terminals.	29	scripts will be shared (but not enabled) for all terminals.
30		30
31	=head2 Prepackaged Extensions	31	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.
74		377
75	=item example-refresh-hooks	378	=item example-refresh-hooks
76		379
77	Displays a very simple digital clock in the upper right corner of the	380	Displays a very simple digital clock in the upper right corner of the
78	window. Illustrates overwriting the refresh callbacks to create your own	381	window. Illustrates overwriting the refresh callbacks to create your own
79	overlays or changes.	382	overlays or changes.
80		383
81	=back	384	=back
		385
		386	=head1 API DOCUMENTATION
82		387
83	=head2 General API Considerations	388	=head2 General API Considerations
84		389
85	All objects (such as terminals, time watchers etc.) are typical	390	All objects (such as terminals, time watchers etc.) are typical
86	reference-to-hash objects. The hash can be used to store anything you	391	reference-to-hash objects. The hash can be used to store anything you
…		…
99	=over 4	404	=over 4
100		405
101	=item $text	406	=item $text
102		407
103	Rxvt-unicodes special way of encoding text, where one "unicode" character	408	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.	409	always represents one screen cell. See L<ROW_t> for a discussion of this format.
105		410
106	=item $string	411	=item $string
107		412
108	A perl text string, with an emphasis on I<text>. It can store all unicode	413	A perl text string, with an emphasis on I<text>. It can store all unicode
109	characters and is to be distinguished with text encoded in a specific	414	characters and is to be distinguished with text encoded in a specific
…		…
114	Either binary data or - more common - a text string encoded in a	419	Either binary data or - more common - a text string encoded in a
115	locale-specific way.	420	locale-specific way.
116		421
117	=back	422	=back
118		423
		424	=head2 Extension Objects
		425
		426	Every perl extension is a perl class. A separate perl object is created
		427	for each terminal, and each terminal has its own set of extenion objects,
		428	which are passed as the first parameter to hooks. So extensions can use
		429	their C<$self> object without having to think about clashes with other
		430	extensions or other terminals, with the exception of methods and members
		431	that begin with an underscore character C<_>: these are reserved for
		432	internal use.
		433
		434	Although it isn't a C<urxvt::term> object, you can call all methods of the
		435	C<urxvt::term> class on this object.
		436
		437	It has the following methods and data members:
		438
		439	=over 4
		440
		441	=item $urxvt_term = $self->{term}
		442
		443	Returns the C<urxvt::term> object associated with this instance of the
		444	extension. This member I<must not> be changed in any way.
		445
		446	=item $self->enable ($hook_name => $cb, [$hook_name => $cb..])
		447
		448	Dynamically enable the given hooks (named without the C<on_> prefix) for
		449	this extension, replacing any previous hook. This is useful when you want
		450	to overwrite time-critical hooks only temporarily.
		451
		452	=item $self->disable ($hook_name[, $hook_name..])
		453
		454	Dynamically disable the given hooks.
		455
		456	=back
		457
119	=head2 Hooks	458	=head2 Hooks
120		459
121	The following subroutines can be declared in extension files, and will be	460	The following subroutines can be declared in extension files, and will be
122	called whenever the relevant event happens.	461	called whenever the relevant event happens.
123		462
124	The first argument passed to them is an object private to each terminal	463	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	464	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.
129		465
130	All of them must return a boolean value. If it is true, then the event	466	B<All> of these hooks must return a boolean value. If any of the called
131	counts as being I<consumed>, and the invocation of other hooks is skipped,	467	hooks returns true, then the event counts as being I<consumed>, and the
132	and the relevant action might not be carried out by the C++ code.	468	relevant action might not be carried out by the C++ code.
133		469
134	When in doubt, return a false value (preferably C<()>).	470	I<< When in doubt, return a false value (preferably C<()>). >>
135		471
136	=over 4	472	=over 4
137		473
138	=item on_init $term	474	=item on_init $term
139		475
140	Called after a new terminal object has been initialized, but before	476	Called after a new terminal object has been initialized, but before
141	windows are created or the command gets run. Most methods are unsafe to	477	windows are created or the command gets run. Most methods are unsafe to
142	call or deliver senseless data, as terminal size and other characteristics	478	call or deliver senseless data, as terminal size and other characteristics
143	have not yet been determined. You can safely query and change resources,	479	have not yet been determined. You can safely query and change resources
144	though.	480	and options, though. For many purposes the C<on_start> hook is a better
		481	place.
		482
		483	=item on_start $term
		484
		485	Called at the very end of initialisation of a new terminal, just before
		486	trying to map (display) the toplevel and returning to the main loop.
		487
		488	=item on_destroy $term
		489
		490	Called whenever something tries to destroy terminal, when the terminal is
		491	still fully functional (not for long, though).
145		492
146	=item on_reset $term	493	=item on_reset $term
147		494
148	Called after the screen is "reset" for any reason, such as resizing or	495	Called after the screen is "reset" for any reason, such as resizing or
149	control sequences. Here is where you can react on changes to size-related	496	control sequences. Here is where you can react on changes to size-related
150	variables.	497	variables.
151		498
152	=item on_start $term	499	=item on_child_start $term, $pid
153		500
154	Called at the very end of initialisation of a new terminal, just before	501	Called just after the child process has been C<fork>ed.
155	returning to the mainloop.	502
		503	=item on_child_exit $term, $status
		504
		505	Called just after the child process has exited. C<$status> is the status
		506	from C<waitpid>.
156		507
157	=item on_sel_make $term, $eventtime	508	=item on_sel_make $term, $eventtime
158		509
159	Called whenever a selection has been made by the user, but before the	510	Called whenever a selection has been made by the user, but before the
160	selection text is copied, so changes to the beginning, end or type of the	511	selection text is copied, so changes to the beginning, end or type of the
…		…
167		518
168	Called whenever a selection has been copied, but before the selection is	519	Called whenever a selection has been copied, but before the selection is
169	requested from the server. The selection text can be queried and changed	520	requested from the server. The selection text can be queried and changed
170	by calling C<< $term->selection >>.	521	by calling C<< $term->selection >>.
171		522
172	Returning a true value aborts selection grabbing. It will still be hilighted.	523	Returning a true value aborts selection grabbing. It will still be highlighted.
173		524
174	=item on_sel_extend $term	525	=item on_sel_extend $term
175		526
176	Called whenever the user tries to extend the selection (e.g. with a double	527	Called whenever the user tries to extend the selection (e.g. with a double
177	click) and is either supposed to return false (normal operation), or	528	click) and is either supposed to return false (normal operation), or
178	should extend the selection itelf and return true to suppress the built-in	529	should extend the selection itself and return true to suppress the built-in
179	processing.	530	processing. This can happen multiple times, as long as the callback
		531	returns true, it will be called on every further click by the user and is
		532	supposed to enlarge the selection more and more, if possible.
180		533
181	See the F<selection> example extension.	534	See the F<selection> example extension.
182		535
183	=item on_focus_in $term
184
185	Called whenever the window gets the keyboard focus, before urxvt does
186	focus in processing.
187
188	=item on_focus_out $term
189
190	Called wheneever the window loses keyboard focus, before urxvt does focus
191	out processing.
192
193	=item on_view_change $term, $offset	536	=item on_view_change $term, $offset
194		537
195	Called whenever the view offset changes, i..e the user or program	538	Called whenever the view offset changes, i.e. the user or program
196	scrolls. Offset C<0> means display the normal terminal, positive values	539	scrolls. Offset C<0> means display the normal terminal, positive values
197	show this many lines of scrollback.	540	show this many lines of scrollback.
198		541
199	=item on_scroll_back $term, $lines, $saved	542	=item on_scroll_back $term, $lines, $saved
200		543
…		…
204		547
205	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,	548	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
206	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total	549	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
207	number of lines that will be in the scrollback buffer.	550	number of lines that will be in the scrollback buffer.
208		551
209	=item on_tty_activity $term *NYI*
210
211	Called whenever the program(s) running in the urxvt window send output.
212
213	=item on_osc_seq $term, $string	552	=item on_osc_seq $term, $op, $args, $resp
		553
		554	Called on every OSC sequence and can be used to suppress it or modify its
		555	behaviour. The default should be to return an empty list. A true value
		556	suppresses execution of the request completely. Make sure you don't get
		557	confused by recursive invocations when you output an OSC sequence within
		558	this callback.
		559
		560	C<on_osc_seq_perl> should be used for new behaviour.
		561
		562	=item on_osc_seq_perl $term, $args, $resp
214		563
215	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =	564	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
216	operating system command) is processed. Cursor position and other state	565	operating system command) is processed. Cursor position and other state
217	information is up-to-date when this happens. For interoperability, the	566	information is up-to-date when this happens. For interoperability, the
218	string should start with the extension name and a colon, to distinguish	567	string should start with the extension name (sans -osc) and a semicolon,
219	it from commands for other extensions, and this might be enforced in the	568	to distinguish it from commands for other extensions, and this might be
220	future.	569	enforced in the future.
		570
		571	For example, C<overlay-osc> uses this:
		572
		573	sub on_osc_seq_perl {
		574	my ($self, $osc, $resp) = @_;
		575
		576	return unless $osc =~ s/^overlay;//;
		577
		578	... process remaining $osc string
		579	}
221		580
222	Be careful not ever to trust (in a security sense) the data you receive,	581	Be careful not ever to trust (in a security sense) the data you receive,
223	as its source can not easily be controleld (e-mail content, messages from	582	as its source can not easily be controlled (e-mail content, messages from
224	other users on the same system etc.).	583	other users on the same system etc.).
		584
		585	For responses, C<$resp> contains the end-of-args separator used by the
		586	sender.
225		587
226	=item on_add_lines $term, $string	588	=item on_add_lines $term, $string
227		589
228	Called whenever text is about to be output, with the text as argument. You	590	Called whenever text is about to be output, with the text as argument. You
229	can filter/change and output the text yourself by returning a true value	591	can filter/change and output the text yourself by returning a true value
230	and calling C<< $term->scr_add_lines >> yourself. Please note that this	592	and calling C<< $term->scr_add_lines >> yourself. Please note that this
231	might be very slow, however, as your hook is called for B<all> text being	593	might be very slow, however, as your hook is called for B<all> text being
232	output.	594	output.
233		595
		596	=item on_tt_write $term, $octets
		597
		598	Called whenever some data is written to the tty/pty and can be used to
		599	suppress or filter tty input.
		600
234	=item on_line_update $term, $row	601	=item on_line_update $term, $row
235		602
236	Called whenever a line was updated or changed. Can be used to filter	603	Called whenever a line was updated or changed. Can be used to filter
237	screen output (e.g. underline urls or other useless stuff). Only lines	604	screen output (e.g. underline urls or other useless stuff). Only lines
238	that are being shown will be filtered, and, due to performance reasons,	605	that are being shown will be filtered, and, due to performance reasons,
…		…
245	later with the already-modified line (e.g. if unrelated parts change), so	612	later with the already-modified line (e.g. if unrelated parts change), so
246	you cannot just toggle rendition bits, but only set them.	613	you cannot just toggle rendition bits, but only set them.
247		614
248	=item on_refresh_begin $term	615	=item on_refresh_begin $term
249		616
250	Called just before the screen gets redrawn. Can be used for overlay	617	Called just before the screen gets redrawn. Can be used for overlay or
251	or similar effects by modify terminal contents in refresh_begin, and	618	similar effects by modifying the terminal contents in refresh_begin, and
252	restoring them in refresh_end. The built-in overlay and selection display	619	restoring them in refresh_end. The built-in overlay and selection display
253	code is run after this hook, and takes precedence.	620	code is run after this hook, and takes precedence.
254		621
255	=item on_refresh_end $term	622	=item on_refresh_end $term
256		623
257	Called just after the screen gets redrawn. See C<on_refresh_begin>.	624	Called just after the screen gets redrawn. See C<on_refresh_begin>.
258		625
259	=item on_keyboard_command $term, $string	626	=item on_user_command $term, $string
260		627
261	Called whenever the user presses a key combination that has a	628	Called whenever a user-configured event is being activated (e.g. via
262	C<perl:string> action bound to it (see description of the B<keysym>	629	a C<perl:string> action bound to a key, see description of the B<keysym>
263	resource in the @@RXVT_NAME@@(1) manpage).	630	resource in the @@RXVT_NAME@@(1) manpage).
264		631
		632	The event is simply the action string. This interface is assumed to change
		633	slightly in the future.
		634
		635	=item on_resize_all_windows $tern, $new_width, $new_height
		636
		637	Called just after the new window size has been calculated, but before
		638	windows are actually being resized or hints are being set. If this hook
		639	returns TRUE, setting of the window hints is being skipped.
		640
		641	=item on_x_event $term, $event
		642
		643	Called on every X event received on the vt window (and possibly other
		644	windows). Should only be used as a last resort. Most event structure
		645	members are not passed.
		646
		647	=item on_root_event $term, $event
		648
		649	Like C<on_x_event>, but is called for events on the root window.
		650
		651	=item on_focus_in $term
		652
		653	Called whenever the window gets the keyboard focus, before rxvt-unicode
		654	does focus in processing.
		655
		656	=item on_focus_out $term
		657
		658	Called whenever the window loses keyboard focus, before rxvt-unicode does
		659	focus out processing.
		660
		661	=item on_configure_notify $term, $event
		662
		663	=item on_property_notify $term, $event
		664
265	=item on_key_press $term, $event, $octets	665	=item on_key_press $term, $event, $keysym, $octets
266		666
267	=item on_key_release $term, $event	667	=item on_key_release $term, $event, $keysym
268		668
269	=item on_button_press $term, $event	669	=item on_button_press $term, $event
270		670
271	=item on_button_release $term, $event	671	=item on_button_release $term, $event
272		672
273	=item on_motion_notify $term, $event	673	=item on_motion_notify $term, $event
		674
		675	=item on_map_notify $term, $event
		676
		677	=item on_unmap_notify $term, $event
274		678
275	Called whenever the corresponding X event is received for the terminal If	679	Called whenever the corresponding X event is received for the terminal If
276	the hook returns true, then the even will be ignored by rxvt-unicode.	680	the hook returns true, then the even will be ignored by rxvt-unicode.
277		681
278	The event is a hash with most values as named by Xlib (see the XEvent	682	The event is a hash with most values as named by Xlib (see the XEvent
279	manpage), with the additional members C<row> and C<col>, which are the row	683	manpage), with the additional members C<row> and C<col>, which are the
280	and column under the mouse cursor.	684	(real, not screen-based) row and column under the mouse cursor.
281		685
282	C<on_key_press> additionally receives the string rxvt-unicode would	686	C<on_key_press> additionally receives the string rxvt-unicode would
283	output, if any, in locale-specific encoding.	687	output, if any, in locale-specific encoding.
284		688
285	subwindow.	689	subwindow.
286		690
		691	=item on_client_message $term, $event
		692
		693	=item on_wm_protocols $term, $event
		694
		695	=item on_wm_delete_window $term, $event
		696
		697	Called when various types of ClientMessage events are received (all with
		698	format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
		699
287	=back	700	=back
288		701
		702	=cut
		703
		704	package urxvt;
		705
		706	use utf8;
		707	use strict;
		708	use Carp ();
		709	use Scalar::Util ();
		710	use List::Util ();
		711
		712	our $VERSION = 1;
		713	our $TERM;
		714	our @TERM_INIT;
		715	our @TERM_EXT;
		716	our @HOOKNAME;
		717	our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
		718	our %OPTION;
		719
		720	our $LIBDIR;
		721	our $RESNAME;
		722	our $RESCLASS;
		723	our $RXVTNAME;
		724
		725	our $NOCHAR = chr 0xffff;
		726
289	=head2 Variables in the C<urxvt> Package	727	=head2 Variables in the C<urxvt> Package
290		728
291	=over 4	729	=over 4
		730
		731	=item $urxvt::LIBDIR
		732
		733	The rxvt-unicode library directory, where, among other things, the perl
		734	modules and scripts are stored.
		735
		736	=item $urxvt::RESCLASS, $urxvt::RESCLASS
		737
		738	The resource class and name rxvt-unicode uses to look up X resources.
		739
		740	=item $urxvt::RXVTNAME
		741
		742	The basename of the installed binaries, usually C<urxvt>.
292		743
293	=item $urxvt::TERM	744	=item $urxvt::TERM
294		745
295	The current terminal. This variable stores the current C<urxvt::term>	746	The current terminal. This variable stores the current C<urxvt::term>
296	object, whenever a callback/hook is executing.	747	object, whenever a callback/hook is executing.
297		748
		749	=item @urxvt::TERM_INIT
		750
		751	All code references in this array will be called as methods of the next newly
		752	created C<urxvt::term> object (during the C<on_init> phase). The array
		753	gets cleared before the code references that were in it are being executed,
		754	so references can push themselves onto it again if they so desire.
		755
		756	This complements to the perl-eval command line option, but gets executed
		757	first.
		758
		759	=item @urxvt::TERM_EXT
		760
		761	Works similar to C<@TERM_INIT>, but contains perl package/class names, which
		762	get registered as normal extensions after calling the hooks in C<@TERM_INIT>
		763	but before other extensions. Gets cleared just like C<@TERM_INIT>.
		764
298	=back	765	=back
299		766
300	=head2 Functions in the C<urxvt> Package	767	=head2 Functions in the C<urxvt> Package
301		768
302	=over 4	769	=over 4
303
304	=item $term = new urxvt [arg...]
305
306	Creates a new terminal, very similar as if you had started it with
307	C<system $binfile, arg...>. Croaks (and probably outputs an error message)
308	if the new instance couldn't be created. Returns C<undef> if the new
309	instance didn't initialise perl, and the terminal object otherwise. The
310	C<init> and C<start> hooks will be called during the call.
311		770
312	=item urxvt::fatal $errormessage	771	=item urxvt::fatal $errormessage
313		772
314	Fatally aborts execution with the given error message. Avoid at all	773	Fatally aborts execution with the given error message. Avoid at all
315	costs! The only time this is acceptable is when the terminal process	774	costs! The only time this is acceptable is when the terminal process
…		…
322	that calls this function.	781	that calls this function.
323		782
324	Using this function has the advantage that its output ends up in the	783	Using this function has the advantage that its output ends up in the
325	correct place, e.g. on stderr of the connecting urxvtc client.	784	correct place, e.g. on stderr of the connecting urxvtc client.
326		785
		786	Messages have a size limit of 1023 bytes currently.
		787
		788	=item @terms = urxvt::termlist
		789
		790	Returns all urxvt::term objects that exist in this process, regardless of
		791	whether they are started, being destroyed etc., so be careful. Only term
		792	objects that have perl extensions attached will be returned (because there
		793	is no urxvt::term objet associated with others).
		794
327	=item $time = urxvt::NOW	795	=item $time = urxvt::NOW
328		796
329	Returns the "current time" (as per the event loop).	797	Returns the "current time" (as per the event loop).
		798
		799	=item urxvt::CurrentTime
		800
		801	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
		802	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
		803	Button4Mask, Button5Mask, AnyModifier
		804
		805	=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
		806	ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
		807	PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
		808	Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
		809	KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
		810	ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
		811	FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
		812
		813	=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
		814	EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
		815	GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
		816	UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
		817	ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
		818	CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
		819	SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
		820
		821	Various constants for use in X calls and event processing.
330		822
331	=back	823	=back
332		824
333	=head2 RENDITION	825	=head2 RENDITION
334		826
…		…
361		853
362	=item $background = urxvt::GET_BASEBG $rend	854	=item $background = urxvt::GET_BASEBG $rend
363		855
364	Return the foreground/background colour index, respectively.	856	Return the foreground/background colour index, respectively.
365		857
366	=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)	858	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
367		859
368	=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)	860	=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
		861
		862	=item $rend = urxvt::SET_COLOR $rend, $new_fg, $new_bg
369		863
370	Replace the foreground/background colour in the rendition mask with the	864	Replace the foreground/background colour in the rendition mask with the
371	specified one.	865	specified one.
372		866
373	=item $value = urxvt::GET_CUSTOM ($rend)	867	=item $value = urxvt::GET_CUSTOM $rend
374		868
375	Return the "custom" value: Every rendition has 5 bits for use by	869	Return the "custom" value: Every rendition has 5 bits for use by
376	extensions. They can be set and changed as you like and are initially	870	extensions. They can be set and changed as you like and are initially
377	zero.	871	zero.
378		872
379	=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)	873	=item $rend = urxvt::SET_CUSTOM $rend, $new_value
380		874
381	Change the custom value.	875	Change the custom value.
382		876
383	=back	877	=back
384		878
385	=cut	879	=cut
386		880
387	package urxvt;
388
389	use strict;
390	use Scalar::Util ();
391
392	our $TERM;
393	our @HOOKNAME;
394	our $LIBDIR;
395
396	BEGIN {	881	BEGIN {
397	urxvt->bootstrap;
398
399	# overwrite perl's warn	882	# overwrite perl's warn
400	*CORE::GLOBAL::warn = sub {	883	*CORE::GLOBAL::warn = sub {
401	my $msg = join "", @_;	884	my $msg = join "", @_;
402	$msg .= "\n"	885	$msg .= "\n"
403	unless $msg =~ /\n$/;	886	unless $msg =~ /\n$/;
404	urxvt::warn ($msg);	887	urxvt::warn ($msg);
405	};	888	};
406	}	889	}
407		890
408	my @hook_count;	891	no warnings 'utf8';
		892
409	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};	893	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
410		894
411	sub verbose {	895	sub verbose {
412	my ($level, $msg) = @_;	896	my ($level, $msg) = @_;
413	warn "$msg\n" if $level <= $verbosity;	897	warn "$msg\n" if $level <= $verbosity;
414	}	898	}
415		899
416	# find on_xxx subs in the package and register them	900	my %extension_pkg;
417	# as hooks
418	sub register_package($) {
419	my ($pkg) = @_;
420
421	for my $htype (0.. $#HOOKNAME) {
422	my $name = $HOOKNAME[$htype];
423
424	my $ref = $pkg->can ("on_" . lc $name)
425	or next;
426
427	$TERM->{_hook}[$htype]{$pkg} = $ref;
428	$hook_count[$htype]++
429	or set_should_invoke $htype, 1;
430	}
431	}
432
433	my $script_pkg = "script0000";
434	my %script_pkg;
435		901
436	# load a single script into its own package, once only	902	# load a single script into its own package, once only
437	sub script_package($) {	903	sub extension_package($) {
438	my ($path) = @_;	904	my ($path) = @_;
439		905
440	$script_pkg{$path} ||= do {	906	$extension_pkg{$path} ||= do {
441	my $pkg = "urxvt::" . ($script_pkg++);	907	$path =~ /([^\/\\]+)$/;
		908	my $pkg = $1;
		909	$pkg =~ s/[^[:word:]]/_/g;
		910	$pkg = "urxvt::ext::$pkg";
442		911
443	verbose 3, "loading script '$path' into package '$pkg'";	912	verbose 3, "loading extension '$path' into package '$pkg'";
444		913
445	open my $fh, "<:raw", $path	914	open my $fh, "<:raw", $path
446	or die "$path: $!";	915	or die "$path: $!";
447		916
448	my $source = "package $pkg; use strict; use utf8;\n"	917	my $source =
		918	"package $pkg; use strict; use utf8; no warnings 'utf8';\n"
449	. "#line 1 \"$path\"\n{\n"	919	. "#line 1 \"$path\"\n{\n"
450	. (do { local $/; <$fh> })	920	. (do { local $/; <$fh> })
451	. "\n};\n1";	921	. "\n};\n1";
452		922
		923	eval $source
453	eval $source or die "$path: $@";	924	or die "$path: $@";
454		925
455	$pkg	926	$pkg
456	}	927	}
457	}	928	}
458		929
…		…
464	my $htype = shift;	935	my $htype = shift;
465		936
466	if ($htype == 0) { # INIT	937	if ($htype == 0) { # INIT
467	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");	938	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
468		939
		940	my %ext_arg;
		941
		942	{
		943	my @init = @TERM_INIT;
		944	@TERM_INIT = ();
		945	$_->($TERM) for @init;
		946	my @pkg = @TERM_EXT;
		947	@TERM_EXT = ();
		948	$TERM->register_package ($_) for @pkg;
		949	}
		950
469	for my $ext (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {	951	for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
		952	if ($_ eq "default") {
		953	$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
		954	} elsif (/^-(.*)$/) {
		955	delete $ext_arg{$1};
		956	} elsif (/^([^<]+)<(.*)>$/) {
		957	push @{ $ext_arg{$1} }, $2;
		958	} else {
		959	$ext_arg{$_} ||= [];
		960	}
		961	}
		962
		963	for my $ext (sort keys %ext_arg) {
470	my @files = grep -f $_, map "$_/$ext", @dirs;	964	my @files = grep -f $_, map "$_/$ext", @dirs;
471		965
472	if (@files) {	966	if (@files) {
473	register_package script_package $files[0];	967	$TERM->register_package (extension_package $files[0], $ext_arg{$ext});
474	} else {	968	} else {
475	warn "perl extension '$ext' not found in perl library search path\n";	969	warn "perl extension '$ext' not found in perl library search path\n";
476	}	970	}
477	}	971	}
		972
		973	eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval");
		974	warn $@ if $@;
478	}	975	}
479		976
480	$retval = undef;	977	$retval = undef;
481		978
482	if (my $cb = $TERM->{_hook}[$htype]) {	979	if (my $cb = $TERM->{_hook}[$htype]) {
483	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"	980	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
484	if $verbosity >= 10;	981	if $verbosity >= 10;
485		982
486	keys %$cb;	983	for my $pkg (keys %$cb) {
		984	my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg}, @_) };
		985	$retval ||= $retval_;
487		986
488	while (my ($pkg, $cb) = each %$cb) {	987	if ($@) {
489	$retval = $cb->(	988	$TERM->ungrab; # better to lose the grab than the session
490	$TERM->{_pkg}{$pkg} ||= do {	989	warn $@;
491	my $proxy = bless { }, urxvt::term::proxy::;
492	Scalar::Util::weaken ($proxy->{term} = $TERM);
493	$proxy
494	},
495	@_,
496	) and last;
497	}
498	}
499
500	if ($htype == 1) { # DESTROY
501	# remove hooks if unused
502	if (my $hook = $TERM->{_hook}) {
503	for my $htype (0..$#$hook) {
504	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
505	or set_should_invoke $htype, 0;
506	}	990	}
507	}	991	}
508		992
		993	verbose 11, "$HOOKNAME[$htype] returning <$retval>"
		994	if $verbosity >= 11;
		995	}
		996
		997	if ($htype == 1) { # DESTROY
509	# clear package objects	998	# clear package objects
510	%$_ = () for values %{ $TERM->{_pkg} };	999	%$_ = () for values %{ $TERM->{_pkg} };
511		1000
512	# clear package	1001	# clear package
513	%$TERM = ();	1002	%$TERM = ();
514	}	1003	}
515		1004
516	$retval	1005	$retval
517	}	1006	}
518		1007
519	sub urxvt::term::proxy::AUTOLOAD {	1008	sub SET_COLOR($$$) {
520	$urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/	1009	SET_BGCOLOR (SET_FGCOLOR ($_[0], $_[1]), $_[2])
		1010	}
		1011
		1012	sub rend2mask {
		1013	no strict 'refs';
		1014	my ($str, $mask) = (@_, 0);
		1015	my %color = ( fg => undef, bg => undef );
		1016	my @failed;
		1017	for my $spec ( split /\s+/, $str ) {
		1018	if ( $spec =~ /^([fb]g)[_:-]?(\d+)/i ) {
		1019	$color{lc($1)} = $2;
		1020	} else {
		1021	my $neg = $spec =~ s/^[-^]//;
		1022	unless ( exists &{"RS_$spec"} ) {
		1023	push @failed, $spec;
		1024	next;
		1025	}
		1026	my $cur = &{"RS_$spec"};
		1027	if ( $neg ) {
		1028	$mask &= ~$cur;
		1029	} else {
		1030	$mask |= $cur;
		1031	}
		1032	}
		1033	}
		1034	($mask, @color{qw(fg bg)}, \@failed)
		1035	}
		1036
		1037	# urxvt::term::extension
		1038
		1039	package urxvt::term::extension;
		1040
		1041	sub enable {
		1042	my ($self, %hook) = @_;
		1043	my $pkg = $self->{_pkg};
		1044
		1045	while (my ($name, $cb) = each %hook) {
		1046	my $htype = $HOOKTYPE{uc $name};
		1047	defined $htype
		1048	or Carp::croak "unsupported hook type '$name'";
		1049
		1050	$self->set_should_invoke ($htype, +1)
		1051	unless exists $self->{term}{_hook}[$htype]{$pkg};
		1052
		1053	$self->{term}{_hook}[$htype]{$pkg} = $cb;
		1054	}
		1055	}
		1056
		1057	sub disable {
		1058	my ($self, @hook) = @_;
		1059	my $pkg = $self->{_pkg};
		1060
		1061	for my $name (@hook) {
		1062	my $htype = $HOOKTYPE{uc $name};
		1063	defined $htype
		1064	or Carp::croak "unsupported hook type '$name'";
		1065
		1066	$self->set_should_invoke ($htype, -1)
		1067	if delete $self->{term}{_hook}[$htype]{$pkg};
		1068	}
		1069	}
		1070
		1071	our $AUTOLOAD;
		1072
		1073	sub AUTOLOAD {
		1074	$AUTOLOAD =~ /:([^:]+)$/
521	or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";	1075	or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
522		1076
523	eval qq{	1077	eval qq{
524	sub $urxvt::term::proxy::AUTOLOAD {	1078	sub $AUTOLOAD {
525	my \$proxy = shift;	1079	my \$proxy = shift;
526	\$proxy->{term}->$1 (\@_)	1080	\$proxy->{term}->$1 (\@_)
527	}	1081	}
528	1	1082	1
529	} or die "FATAL: unable to compile method forwarder: $@";	1083	} or die "FATAL: unable to compile method forwarder: $@";
530		1084
531	goto &$urxvt::term::proxy::AUTOLOAD;	1085	goto &$AUTOLOAD;
532	}	1086	}
		1087
		1088	sub DESTROY {
		1089	# nop
		1090	}
		1091
		1092	# urxvt::destroy_hook
		1093
		1094	sub urxvt::destroy_hook::DESTROY {
		1095	${$_[0]}->();
		1096	}
		1097
		1098	sub urxvt::destroy_hook(&) {
		1099	bless \shift, urxvt::destroy_hook::
		1100	}
		1101
		1102	package urxvt::anyevent;
		1103
		1104	=head2 The C<urxvt::anyevent> Class
		1105
		1106	The sole purpose of this class is to deliver an interface to the
		1107	C<AnyEvent> module - any module using it will work inside urxvt without
		1108	further programming. The only exception is that you cannot wait on
		1109	condition variables, but non-blocking condvar use is ok. What this means
		1110	is that you cannot use blocking APIs, but the non-blocking variant should
		1111	work.
		1112
		1113	=cut
		1114
		1115	our $VERSION = '3.4';
		1116
		1117	$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
		1118	push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
		1119
		1120	sub timer {
		1121	my ($class, %arg) = @_;
		1122
		1123	my $cb = $arg{cb};
		1124
		1125	urxvt::timer
		1126	->new
		1127	->start (urxvt::NOW + $arg{after})
		1128	->cb (sub {
		1129	$_[0]->stop; # need to cancel manually
		1130	$cb->();
		1131	})
		1132	}
		1133
		1134	sub io {
		1135	my ($class, %arg) = @_;
		1136
		1137	my $cb = $arg{cb};
		1138
		1139	bless [$arg{fh}, urxvt::iow
		1140	->new
		1141	->fd (fileno $arg{fh})
		1142	->events (($arg{poll} =~ /r/ ? 1 : 0)
		1143	| ($arg{poll} =~ /w/ ? 2 : 0))
		1144	->start
		1145	->cb (sub {
		1146	$cb->(($_[1] & 1 ? 'r' : '')
		1147	. ($_[1] & 2 ? 'w' : ''));
		1148	})],
		1149	urxvt::anyevent::
		1150	}
		1151
		1152	sub DESTROY {
		1153	$_[0][1]->stop;
		1154	}
		1155
		1156	sub one_event {
		1157	Carp::croak "AnyEvent->one_event blocking wait unsupported in urxvt, use a non-blocking API";
		1158	}
		1159
		1160	package urxvt::term;
533		1161
534	=head2 The C<urxvt::term> Class	1162	=head2 The C<urxvt::term> Class
535		1163
536	=over 4	1164	=over 4
537		1165
		1166	=cut
		1167
		1168	# find on_xxx subs in the package and register them
		1169	# as hooks
		1170	sub register_package {
		1171	my ($self, $pkg, $argv) = @_;
		1172
		1173	no strict 'refs';
		1174
		1175	urxvt::verbose 6, "register package $pkg to $self";
		1176
		1177	@{"$pkg\::ISA"} = urxvt::term::extension::;
		1178
		1179	my $proxy = bless {
		1180	_pkg => $pkg,
		1181	argv => $argv,
		1182	}, $pkg;
		1183	Scalar::Util::weaken ($proxy->{term} = $self);
		1184
		1185	$self->{_pkg}{$pkg} = $proxy;
		1186
		1187	for my $name (@HOOKNAME) {
		1188	if (my $ref = $pkg->can ("on_" . lc $name)) {
		1189	$proxy->enable ($name => $ref);
		1190	}
		1191	}
		1192	}
		1193
		1194	=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
		1195
		1196	Creates a new terminal, very similar as if you had started it with system
		1197	C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
		1198	hash which defines the environment of the new terminal.
		1199
		1200	Croaks (and probably outputs an error message) if the new instance
		1201	couldn't be created. Returns C<undef> if the new instance didn't
		1202	initialise perl, and the terminal object otherwise. The C<init> and
		1203	C<start> hooks will be called before this call returns, and are free to
		1204	refer to global data (which is race free).
		1205
		1206	=cut
		1207
		1208	sub new {
		1209	my ($class, $env, @args) = @_;
		1210
		1211	$env or Carp::croak "environment hash missing in call to urxvt::term->new";
		1212	@args or Carp::croak "name argument missing in call to urxvt::term->new";
		1213
		1214	_new ([ map "$_=$env->{$_}", keys %$env ], \@args);
		1215	}
		1216
538	=item $term->destroy	1217	=item $term->destroy
539		1218
540	Destroy the terminal object (close the window, free resources etc.).	1219	Destroy the terminal object (close the window, free resources
		1220	etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
		1221	watchers (timers, io watchers) are still active.
		1222
		1223	=item $term->exec_async ($cmd[, @args])
		1224
		1225	Works like the combination of the C<fork>/C<exec> builtins, which executes
		1226	("starts") programs in the background. This function takes care of setting
		1227	the user environment before exec'ing the command (e.g. C<PATH>) and should
		1228	be preferred over explicit calls to C<exec> or C<system>.
		1229
		1230	Returns the pid of the subprocess or C<undef> on error.
		1231
		1232	=cut
		1233
		1234	sub exec_async {
		1235	my $self = shift;
		1236
		1237	my $pid = fork;
		1238
		1239	return $pid
		1240	if !defined $pid or $pid;
		1241
		1242	%ENV = %{ $self->env };
		1243
		1244	exec @_;
		1245	urxvt::_exit 255;
		1246	}
		1247
		1248	=item $isset = $term->option ($optval[, $set])
		1249
		1250	Returns true if the option specified by C<$optval> is enabled, and
		1251	optionally change it. All option values are stored by name in the hash
		1252	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
		1253
		1254	Here is a likely non-exhaustive list of option names, please see the
		1255	source file F</src/optinc.h> to see the actual list:
		1256
		1257	borderLess console cursorBlink cursorUnderline hold iconic insecure
		1258	intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
		1259	override-redirect pastableTabs pointerBlank reverseVideo scrollBar
		1260	scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
		1261	scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
		1262	transparent tripleclickwords utmpInhibit visualBell
541		1263
542	=item $value = $term->resource ($name[, $newval])	1264	=item $value = $term->resource ($name[, $newval])
543		1265
544	Returns the current resource value associated with a given name and	1266	Returns the current resource value associated with a given name and
545	optionally sets a new value. Setting values is most useful in the C<init>	1267	optionally sets a new value. Setting values is most useful in the C<init>
…		…
554	likely change).	1276	likely change).
555		1277
556	Please note that resource strings will currently only be freed when the	1278	Please note that resource strings will currently only be freed when the
557	terminal is destroyed, so changing options frequently will eat memory.	1279	terminal is destroyed, so changing options frequently will eat memory.
558		1280
559	Here is a a likely non-exhaustive list of resource names, not all of which	1281	Here is a likely non-exhaustive list of resource names, not all of which
560	are supported in every build, please see the source to see the actual	1282	are supported in every build, please see the source file F</src/rsinc.h>
561	list:	1283	to see the actual list:
562		1284
563	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont	1285	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
564	borderLess color cursorBlink cursorUnderline cutchars delete_key	1286	borderLess chdir color cursorBlink cursorUnderline cutchars delete_key
565	display_name embed ext_bwidth fade font geometry hold iconName	1287	display_name embed ext_bwidth fade font geometry hold iconName
566	imFont imLocale inputMethod insecure int_bwidth intensityStyles	1288	imFont imLocale inputMethod insecure int_bwidth intensityStyles
567	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier	1289	italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
568	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2	1290	mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
569	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd	1291	perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
570	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating	1292	preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
571	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput	1293	scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
572	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle	1294	scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
573	shade term_name title transparent transparent_all tripleclickwords	1295	secondaryScreen secondaryScroll shade term_name title
574	utmpInhibit visualBell	1296	transient_for transparent transparent_all tripleclickwords utmpInhibit
		1297	visualBell
575		1298
576	=cut	1299	=cut
577		1300
578	sub urxvt::term::resource($$;$) {	1301	sub resource($$;$) {
579	my ($self, $name) = (shift, shift);	1302	my ($self, $name) = (shift, shift);
580	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);	1303	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
581	goto &urxvt::term::_resource;	1304	goto &urxvt::term::_resource
582	}	1305	}
		1306
		1307	=item $value = $term->x_resource ($pattern)
		1308
		1309	Returns the X-Resource for the given pattern, excluding the program or
		1310	class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
		1311	same value as used by this instance of rxvt-unicode. Returns C<undef> if no
		1312	resource with that pattern exists.
		1313
		1314	This method should only be called during the C<on_start> hook, as there is
		1315	only one resource database per display, and later invocations might return
		1316	the wrong resources.
		1317
		1318	=item $success = $term->parse_keysym ($keysym_spec, $command_string)
		1319
		1320	Adds a keymap translation exactly as specified via a resource. See the
		1321	C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
583		1322
584	=item $rend = $term->rstyle ([$new_rstyle])	1323	=item $rend = $term->rstyle ([$new_rstyle])
585		1324
586	Return and optionally change the current rendition. Text that is output by	1325	Return and optionally change the current rendition. Text that is output by
587	the terminal application will use this style.	1326	the terminal application will use this style.
…		…
598	=item ($row, $col) = $term->selection_end ([$row, $col])	1337	=item ($row, $col) = $term->selection_end ([$row, $col])
599		1338
600	Return the current values of the selection mark, begin or end positions,	1339	Return the current values of the selection mark, begin or end positions,
601	and optionally set them to new values.	1340	and optionally set them to new values.
602		1341
		1342	=item $term->selection_make ($eventtime[, $rectangular])
		1343
		1344	Tries to make a selection as set by C<selection_beg> and
		1345	C<selection_end>. If C<$rectangular> is true (default: false), a
		1346	rectangular selection will be made. This is the prefered function to make
		1347	a selection.
		1348
603	=item $success = $term->selection_grab ($eventtime)	1349	=item $success = $term->selection_grab ($eventtime)
604		1350
605	Try to request the primary selection from the server (for example, as set	1351	Try to request the primary selection text from the server (for example, as
606	by the next method).	1352	set by the next method). No visual feedback will be given. This function
		1353	is mostly useful from within C<on_sel_grab> hooks.
607		1354
608	=item $oldtext = $term->selection ([$newtext])	1355	=item $oldtext = $term->selection ([$newtext])
609		1356
610	Return the current selection text and optionally replace it by C<$newtext>.	1357	Return the current selection text and optionally replace it by C<$newtext>.
611		1358
612	#=item $term->overlay ($x, $y, $text)	1359	=item $term->overlay_simple ($x, $y, $text)
613	#	1360
614	#Create a simple multi-line overlay box. See the next method for details.	1361	Create a simple multi-line overlay box. See the next method for details.
615	#	1362
616	#=cut	1363	=cut
617	#	1364
618	#sub urxvt::term::scr_overlay {	1365	sub overlay_simple {
619	# my ($self, $x, $y, $text) = @_;	1366	my ($self, $x, $y, $text) = @_;
620	#	1367
621	# my @lines = split /\n/, $text;	1368	my @lines = split /\n/, $text;
622	#	1369
623	# my $w = 0;	1370	my $w = List::Util::max map $self->strwidth ($_), @lines;
624	# for (map $self->strwidth ($_), @lines) {	1371
625	# $w = $_ if $w < $_;
626	# }
627	#
628	# $self->scr_overlay_new ($x, $y, $w, scalar @lines);	1372	my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
629	# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;	1373	$overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
630	#}	1374
		1375	$overlay
		1376	}
631		1377
632	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])	1378	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
633		1379
634	Create a new (empty) overlay at the given position with the given	1380	Create a new (empty) overlay at the given position with the given
635	width/height. C<$rstyle> defines the initial rendition style	1381	width/height. C<$rstyle> defines the initial rendition style
…		…
646		1392
647	The methods currently supported on C<urxvt::overlay> objects are:	1393	The methods currently supported on C<urxvt::overlay> objects are:
648		1394
649	=over 4	1395	=over 4
650		1396
651	=item $overlay->set ($x, $y, $text, $rend)	1397	=item $overlay->set ($x, $y, $text[, $rend])
652		1398
653	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts	1399	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts
654	text in rxvt-unicode's special encoding and an array of rendition values	1400	text in rxvt-unicode's special encoding and an array of rendition values
655	at a specific position inside the overlay.	1401	at a specific position inside the overlay.
656		1402
		1403	If C<$rend> is missing, then the rendition will not be changed.
		1404
657	=item $overlay->hide	1405	=item $overlay->hide
658		1406
659	If visible, hide the overlay, but do not destroy it.	1407	If visible, hide the overlay, but do not destroy it.
660		1408
661	=item $overlay->show	1409	=item $overlay->show
662		1410
663	If hidden, display the overlay again.	1411	If hidden, display the overlay again.
664		1412
665	=back	1413	=back
		1414
		1415	=item $popup = $term->popup ($event)
		1416
		1417	Creates a new C<urxvt::popup> object that implements a popup menu. The
		1418	C<$event> I<must> be the event causing the menu to pop up (a button event,
		1419	currently).
		1420
		1421	=cut
		1422
		1423	sub popup {
		1424	my ($self, $event) = @_;
		1425
		1426	$self->grab ($event->{time}, 1)
		1427	or return;
		1428
		1429	my $popup = bless {
		1430	term => $self,
		1431	event => $event,
		1432	}, urxvt::popup::;
		1433
		1434	Scalar::Util::weaken $popup->{term};
		1435
		1436	$self->{_destroy}{$popup} = urxvt::destroy_hook { $popup->{popup}->destroy };
		1437	Scalar::Util::weaken $self->{_destroy}{$popup};
		1438
		1439	$popup
		1440	}
666		1441
667	=item $cellwidth = $term->strwidth ($string)	1442	=item $cellwidth = $term->strwidth ($string)
668		1443
669	Returns the number of screen-cells this string would need. Correctly	1444	Returns the number of screen-cells this string would need. Correctly
670	accounts for wide and combining characters.	1445	accounts for wide and combining characters.
…		…
674	Convert the given text string into the corresponding locale encoding.	1449	Convert the given text string into the corresponding locale encoding.
675		1450
676	=item $string = $term->locale_decode ($octets)	1451	=item $string = $term->locale_decode ($octets)
677		1452
678	Convert the given locale-encoded octets into a perl string.	1453	Convert the given locale-encoded octets into a perl string.
		1454
		1455	=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
		1456
		1457	XORs the rendition values in the given span with the provided value
		1458	(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
		1459	refresh hooks to provide effects similar to the selection.
		1460
		1461	=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
		1462
		1463	Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
		1464	whitespace will additionally be xored with the C<$rstyle2>, which defaults
		1465	to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
		1466	it instead. Both styles I<MUST NOT> contain font styles.
		1467
		1468	=item $term->scr_bell
		1469
		1470	Ring the bell!
679		1471
680	=item $term->scr_add_lines ($string)	1472	=item $term->scr_add_lines ($string)
681		1473
682	Write the given text string to the screen, as if output by the application	1474	Write the given text string to the screen, as if output by the application
683	running inside the terminal. It may not contain command sequences (escape	1475	running inside the terminal. It may not contain command sequences (escape
…		…
686		1478
687	Normally its not a good idea to use this function, as programs might be	1479	Normally its not a good idea to use this function, as programs might be
688	confused by changes in cursor position or scrolling. Its useful inside a	1480	confused by changes in cursor position or scrolling. Its useful inside a
689	C<on_add_lines> hook, though.	1481	C<on_add_lines> hook, though.
690		1482
		1483	=item $term->scr_change_screen ($screen)
		1484
		1485	Switch to given screen - 0 primary, 1 secondary.
		1486
691	=item $term->cmd_parse ($octets)	1487	=item $term->cmd_parse ($octets)
692		1488
693	Similar to C<scr_add_lines>, but the argument must be in the	1489	Similar to C<scr_add_lines>, but the argument must be in the
694	locale-specific encoding of the terminal and can contain command sequences	1490	locale-specific encoding of the terminal and can contain command sequences
695	(escape codes) that will be interpreted.	1491	(escape codes) that will be interpreted.
…		…
698		1494
699	Write the octets given in C<$data> to the tty (i.e. as program input). To	1495	Write the octets given in C<$data> to the tty (i.e. as program input). To
700	pass characters instead of octets, you should convert your strings first	1496	pass characters instead of octets, you should convert your strings first
701	to the locale-specific encoding using C<< $term->locale_encode >>.	1497	to the locale-specific encoding using C<< $term->locale_encode >>.
702		1498
		1499	=item $old_events = $term->pty_ev_events ([$new_events])
		1500
		1501	Replaces the event mask of the pty watcher by the given event mask. Can
		1502	be used to suppress input and output handling to the pty/tty. See the
		1503	description of C<< urxvt::timer->events >>. Make sure to always restore
		1504	the previous value.
		1505
		1506	=item $fd = $term->pty_fd
		1507
		1508	Returns the master file descriptor for the pty in use, or C<-1> if no pty
		1509	is used.
		1510
703	=item $windowid = $term->parent	1511	=item $windowid = $term->parent
704		1512
705	Return the window id of the toplevel window.	1513	Return the window id of the toplevel window.
706		1514
707	=item $windowid = $term->vt	1515	=item $windowid = $term->vt
708		1516
709	Return the window id of the terminal window.	1517	Return the window id of the terminal window.
710		1518
		1519	=item $term->vt_emask_add ($x_event_mask)
		1520
		1521	Adds the specified events to the vt event mask. Useful e.g. when you want
		1522	to receive pointer events all the times:
		1523
		1524	$term->vt_emask_add (urxvt::PointerMotionMask);
		1525
		1526	=item $term->focus_in
		1527
		1528	=item $term->focus_out
		1529
		1530	=item $term->key_press ($state, $keycode[, $time])
		1531
		1532	=item $term->key_release ($state, $keycode[, $time])
		1533
		1534	Deliver various fake events to to terminal.
		1535
711	=item $window_width = $term->width	1536	=item $window_width = $term->width
712		1537
713	=item $window_height = $term->height	1538	=item $window_height = $term->height
714		1539
715	=item $font_width = $term->fwidth	1540	=item $font_width = $term->fwidth
…		…
728		1553
729	=item $max_scrollback = $term->saveLines	1554	=item $max_scrollback = $term->saveLines
730		1555
731	=item $nrow_plus_saveLines = $term->total_rows	1556	=item $nrow_plus_saveLines = $term->total_rows
732		1557
733	=item $lines_in_scrollback = $term->nsaved	1558	=item $topmost_scrollback_row = $term->top_row
734		1559
735	Return various integers describing terminal characteristics.	1560	Return various integers describing terminal characteristics.
736		1561
		1562	=item $x_display = $term->display_id
		1563
		1564	Return the DISPLAY used by rxvt-unicode.
		1565
		1566	=item $lc_ctype = $term->locale
		1567
		1568	Returns the LC_CTYPE category string used by this rxvt-unicode.
		1569
		1570	=item $env = $term->env
		1571
		1572	Returns a copy of the environment in effect for the terminal as a hashref
		1573	similar to C<\%ENV>.
		1574
		1575	=item @envv = $term->envv
		1576
		1577	Returns the environment as array of strings of the form C<VAR=VALUE>.
		1578
		1579	=item @argv = $term->argv
		1580
		1581	Return the argument vector as this terminal, similar to @ARGV, but
		1582	includes the program name as first element.
		1583
		1584	=cut
		1585
		1586	sub env {
		1587	+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), $_[0]->envv }
		1588	}
		1589
		1590	=item $modifiermask = $term->ModLevel3Mask
		1591
		1592	=item $modifiermask = $term->ModMetaMask
		1593
		1594	=item $modifiermask = $term->ModNumLockMask
		1595
		1596	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
		1597	AltGr), the meta key (often Alt) and the num lock key, if applicable.
		1598
		1599	=item $screen = $term->current_screen
		1600
		1601	Returns the currently displayed screen (0 primary, 1 secondary).
		1602
		1603	=item $cursor_is_hidden = $term->hidden_cursor
		1604
		1605	Returns whether the cursor is currently hidden or not.
		1606
737	=item $view_start = $term->view_start ([$newvalue])	1607	=item $view_start = $term->view_start ([$newvalue])
738		1608
739	Returns the negative row number of the topmost line. Minimum value is	1609	Returns the row number of the topmost displayed line. Maximum value is
740	C<0>, which displays the normal terminal contents. Larger values scroll	1610	C<0>, which displays the normal terminal contents. Lower values scroll
741	this many lines into the scrollback buffer.	1611	this many lines into the scrollback buffer.
742		1612
743	=item $term->want_refresh	1613	=item $term->want_refresh
744		1614
745	Requests a screen refresh. At the next opportunity, rxvt-unicode will	1615	Requests a screen refresh. At the next opportunity, rxvt-unicode will
…		…
748		1618
749	Used after changing terminal contents to display them.	1619	Used after changing terminal contents to display them.
750		1620
751	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])	1621	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
752		1622
753	Returns the text of the entire row with number C<$row_number>. Row C<0>	1623	Returns the text of the entire row with number C<$row_number>. Row C<< $term->top_row >>
754	is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost	1624	is the topmost terminal line, row C<< $term->nrow-1 >> is the bottommost
755	terminal line. The scrollback buffer starts at line C<-1> and extends to
756	line C<< -$term->nsaved >>. Nothing will be returned if a nonexistent line	1625	terminal line. Nothing will be returned if a nonexistent line
757	is requested.	1626	is requested.
758		1627
759	If C<$new_text> is specified, it will replace characters in the current	1628	If C<$new_text> is specified, it will replace characters in the current
760	line, starting at column C<$start_col> (default C<0>), which is useful	1629	line, starting at column C<$start_col> (default C<0>), which is useful
761	to replace only parts of a line. The font index in the rendition will	1630	to replace only parts of a line. The font index in the rendition will
762	automatically be updated.	1631	automatically be updated.
763		1632
764	C<$text> is in a special encoding: tabs and wide characters that use more	1633	C<$text> is in a special encoding: tabs and wide characters that use more
765	than one cell when displayed are padded with urxvt::NOCHAR characters	1634	than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
766	(C<chr 65535>). Characters with combining characters and other characters	1635	characters. Characters with combining characters and other characters that
767	that do not fit into the normal tetx encoding will be replaced with	1636	do not fit into the normal text encoding will be replaced with characters
768	characters in the private use area.	1637	in the private use area.
769		1638
770	You have to obey this encoding when changing text. The advantage is	1639	You have to obey this encoding when changing text. The advantage is
771	that C<substr> and similar functions work on screen cells and not on	1640	that C<substr> and similar functions work on screen cells and not on
772	characters.	1641	characters.
773		1642
…		…
824	Return the row number of the first/last row of the line, respectively.	1693	Return the row number of the first/last row of the line, respectively.
825		1694
826	=item $offset = $line->offset_of ($row, $col)	1695	=item $offset = $line->offset_of ($row, $col)
827		1696
828	Returns the character offset of the given row|col pair within the logical	1697	Returns the character offset of the given row|col pair within the logical
829	line.	1698	line. Works for rows outside the line, too, and returns corresponding
		1699	offsets outside the string.
830		1700
831	=item ($row, $col) = $line->coord_of ($offset)	1701	=item ($row, $col) = $line->coord_of ($offset)
832		1702
833	Translates a string offset into terminal coordinates again.	1703	Translates a string offset into terminal coordinates again.
834		1704
835	=back	1705	=back
836		1706
837	=cut	1707	=cut
838		1708
839	sub urxvt::term::line {	1709	sub line {
840	my ($self, $row) = @_;	1710	my ($self, $row) = @_;
841		1711
842	my $maxrow = $self->nrow - 1;	1712	my $maxrow = $self->nrow - 1;
843		1713
844	my ($beg, $end) = ($row, $row);	1714	my ($beg, $end) = ($row, $row);
…		…
908	$offset / $self->{ncol} + $self->{beg},	1778	$offset / $self->{ncol} + $self->{beg},
909	$offset % $self->{ncol}	1779	$offset % $self->{ncol}
910	)	1780	)
911	}	1781	}
912		1782
913	=item ($row, $col) = $line->coord_of ($offset)
914	=item $text = $term->special_encode $string	1783	=item $text = $term->special_encode $string
915		1784
916	Converts a perl string into the special encoding used by rxvt-unicode,	1785	Converts a perl string into the special encoding used by rxvt-unicode,
917	where one character corresponds to one screen cell. See	1786	where one character corresponds to one screen cell. See
918	C<< $term->ROW_t >> for details.	1787	C<< $term->ROW_t >> for details.
919		1788
920	=item $string = $term->special_decode $text	1789	=item $string = $term->special_decode $text
921		1790
922	Converts rxvt-unicodes text reprsentation into a perl string. See	1791	Converts rxvt-unicodes text representation into a perl string. See
923	C<< $term->ROW_t >> for details.	1792	C<< $term->ROW_t >> for details.
924		1793
		1794	=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
		1795
		1796	=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
		1797
		1798	Register/unregister a synchronous button grab. See the XGrabButton
		1799	manpage.
		1800
		1801	=item $success = $term->grab ($eventtime[, $sync])
		1802
		1803	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
		1804	synchronous (C<$sync> is true). Also remembers the grab timestamp.
		1805
		1806	=item $term->allow_events_async
		1807
		1808	Calls XAllowEvents with AsyncBoth for the most recent grab.
		1809
		1810	=item $term->allow_events_sync
		1811
		1812	Calls XAllowEvents with SyncBoth for the most recent grab.
		1813
		1814	=item $term->allow_events_replay
		1815
		1816	Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
		1817	recent grab.
		1818
		1819	=item $term->ungrab
		1820
		1821	Calls XUngrab for the most recent grab. Is called automatically on
		1822	evaluation errors, as it is better to lose the grab in the error case as
		1823	the session.
		1824
		1825	=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
		1826
		1827	=item $atom_name = $term->XGetAtomName ($atom)
		1828
		1829	=item @atoms = $term->XListProperties ($window)
		1830
		1831	=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
		1832
		1833	=item $term->XChangeProperty ($window, $property, $type, $format, $octets)
		1834
		1835	=item $term->XDeleteProperty ($window, $property)
		1836
		1837	=item $window = $term->DefaultRootWindow
		1838
		1839	=item $term->XReparentWindow ($window, $parent, [$x, $y])
		1840
		1841	=item $term->XMapWindow ($window)
		1842
		1843	=item $term->XUnmapWindow ($window)
		1844
		1845	=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
		1846
		1847	=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
		1848
		1849	=item $term->XChangeInput ($window, $add_events[, $del_events])
		1850
		1851	Various X or X-related functions. The C<$term> object only serves as
		1852	the source of the display, otherwise those functions map more-or-less
		1853	directory onto the X functions of the same name.
		1854
925	=back	1855	=back
		1856
		1857	=cut
		1858
		1859	package urxvt::popup;
		1860
		1861	=head2 The C<urxvt::popup> Class
		1862
		1863	=over 4
		1864
		1865	=cut
		1866
		1867	sub add_item {
		1868	my ($self, $item) = @_;
		1869
		1870	$item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal};
		1871	$item->{rend}{hover} = "\x1b[0;30;46m" unless exists $item->{rend}{hover};
		1872	$item->{rend}{active} = "\x1b[m" unless exists $item->{rend}{active};
		1873
		1874	$item->{render} ||= sub { $_[0]{text} };
		1875
		1876	push @{ $self->{item} }, $item;
		1877	}
		1878
		1879	=item $popup->add_title ($title)
		1880
		1881	Adds a non-clickable title to the popup.
		1882
		1883	=cut
		1884
		1885	sub add_title {
		1886	my ($self, $title) = @_;
		1887
		1888	$self->add_item ({
		1889	rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
		1890	text => $title,
		1891	activate => sub { },
		1892	});
		1893	}
		1894
		1895	=item $popup->add_separator ([$sepchr])
		1896
		1897	Creates a separator, optionally using the character given as C<$sepchr>.
		1898
		1899	=cut
		1900
		1901	sub add_separator {
		1902	my ($self, $sep) = @_;
		1903
		1904	$sep ||= "=";
		1905
		1906	$self->add_item ({
		1907	rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
		1908	text => "",
		1909	render => sub { $sep x $self->{term}->ncol },
		1910	activate => sub { },
		1911	});
		1912	}
		1913
		1914	=item $popup->add_button ($text, $cb)
		1915
		1916	Adds a clickable button to the popup. C<$cb> is called whenever it is
		1917	selected.
		1918
		1919	=cut
		1920
		1921	sub add_button {
		1922	my ($self, $text, $cb) = @_;
		1923
		1924	$self->add_item ({ type => "button", text => $text, activate => $cb});
		1925	}
		1926
		1927	=item $popup->add_toggle ($text, $initial_value, $cb)
		1928
		1929	Adds a toggle/checkbox item to the popup. The callback gets called
		1930	whenever it gets toggled, with a boolean indicating its new value as its
		1931	first argument.
		1932
		1933	=cut
		1934
		1935	sub add_toggle {
		1936	my ($self, $text, $value, $cb) = @_;
		1937
		1938	my $item; $item = {
		1939	type => "button",
		1940	text => " $text",
		1941	value => $value,
		1942	render => sub { ($_[0]{value} ? "* " : " ") . $text },
		1943	activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
		1944	};
		1945
		1946	$self->add_item ($item);
		1947	}
		1948
		1949	=item $popup->show
		1950
		1951	Displays the popup (which is initially hidden).
		1952
		1953	=cut
		1954
		1955	sub show {
		1956	my ($self) = @_;
		1957
		1958	local $urxvt::popup::self = $self;
		1959
		1960	my $env = $self->{term}->env;
		1961	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
		1962	delete $env->{LC_ALL};
		1963	$env->{LC_CTYPE} = $self->{term}->locale;
		1964
		1965	my $term = urxvt::term->new (
		1966	$env, "popup",
		1967	"--perl-lib" => "", "--perl-ext-common" => "",
		1968	"-pty-fd" => -1, "-sl" => 0,
		1969	"-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
		1970	"--transient-for" => $self->{term}->parent,
		1971	"-display" => $self->{term}->display_id,
		1972	"-pe" => "urxvt-popup",
		1973	) or die "unable to create popup window\n";
		1974
		1975	unless (delete $term->{urxvt_popup_init_done}) {
		1976	$term->ungrab;
		1977	$term->destroy;
		1978	die "unable to initialise popup window\n";
		1979	}
		1980	}
		1981
		1982	sub DESTROY {
		1983	my ($self) = @_;
		1984
		1985	delete $self->{term}{_destroy}{$self};
		1986	$self->{term}->ungrab;
		1987	}
		1988
		1989	=back
		1990
		1991	=cut
		1992
		1993	package urxvt::watcher;
926		1994
927	=head2 The C<urxvt::timer> Class	1995	=head2 The C<urxvt::timer> Class
928		1996
929	This class implements timer watchers/events. Time is represented as a	1997	This class implements timer watchers/events. Time is represented as a
930	fractional number of seconds since the epoch. Example:	1998	fractional number of seconds since the epoch. Example:
…		…
934	->new	2002	->new
935	->interval (1)	2003	->interval (1)
936	->cb (sub {	2004	->cb (sub {
937	$term->{overlay}->set (0, 0,	2005	$term->{overlay}->set (0, 0,
938	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);	2006	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
939	});	2007	});
940		2008
941	=over 4	2009	=over 4
942		2010
943	=item $timer = new urxvt::timer	2011	=item $timer = new urxvt::timer
944		2012
…		…
968	Start the timer.	2036	Start the timer.
969		2037
970	=item $timer = $timer->start ($tstamp)	2038	=item $timer = $timer->start ($tstamp)
971		2039
972	Set the event trigger time to C<$tstamp> and start the timer.	2040	Set the event trigger time to C<$tstamp> and start the timer.
		2041
		2042	=item $timer = $timer->after ($delay)
		2043
		2044	Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
973		2045
974	=item $timer = $timer->stop	2046	=item $timer = $timer->stop
975		2047
976	Stop the timer.	2048	Stop the timer.
977		2049
…		…
983		2055
984	$term->{socket} = ...	2056	$term->{socket} = ...
985	$term->{iow} = urxvt::iow	2057	$term->{iow} = urxvt::iow
986	->new	2058	->new
987	->fd (fileno $term->{socket})	2059	->fd (fileno $term->{socket})
988	->events (1) # wait for read data	2060	->events (urxvt::EV_READ)
989	->start	2061	->start
990	->cb (sub {	2062	->cb (sub {
991	my ($iow, $revents) = @_;	2063	my ($iow, $revents) = @_;
992	# $revents must be 1 here, no need to check	2064	# $revents must be 1 here, no need to check
993	sysread $term->{socket}, my $buf, 8192	2065	sysread $term->{socket}, my $buf, 8192
…		…
1006	Set the callback to be called when io events are triggered. C<$reventmask>	2078	Set the callback to be called when io events are triggered. C<$reventmask>
1007	is a bitset as described in the C<events> method.	2079	is a bitset as described in the C<events> method.
1008		2080
1009	=item $iow = $iow->fd ($fd)	2081	=item $iow = $iow->fd ($fd)
1010		2082
1011	Set the filedescriptor (not handle) to watch.	2083	Set the file descriptor (not handle) to watch.
1012		2084
1013	=item $iow = $iow->events ($eventmask)	2085	=item $iow = $iow->events ($eventmask)
1014		2086
1015	Set the event mask to watch. Bit #0 (value C<1>) enables watching for read	2087	Set the event mask to watch. The only allowed values are
1016	data, Bit #1 (value C<2>) enables watching for write data.	2088	C<urxvt::EV_READ> and C<urxvt::EV_WRITE>, which might be ORed
		2089	together, or C<urxvt::EV_NONE>.
1017		2090
1018	=item $iow = $iow->start	2091	=item $iow = $iow->start
1019		2092
1020	Start watching for requested events on the given handle.	2093	Start watching for requested events on the given handle.
1021		2094
1022	=item $iow = $iow->stop	2095	=item $iow = $iow->stop
1023		2096
1024	Stop watching for events on the given filehandle.	2097	Stop watching for events on the given file handle.
		2098
		2099	=back
		2100
		2101	=head2 The C<urxvt::iw> Class
		2102
		2103	This class implements idle watchers, that get called automatically when
		2104	the process is idle. They should return as fast as possible, after doing
		2105	some useful work.
		2106
		2107	=over 4
		2108
		2109	=item $iw = new urxvt::iw
		2110
		2111	Create a new idle watcher object in stopped state.
		2112
		2113	=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
		2114
		2115	Set the callback to be called when the watcher triggers.
		2116
		2117	=item $timer = $timer->start
		2118
		2119	Start the watcher.
		2120
		2121	=item $timer = $timer->stop
		2122
		2123	Stop the watcher.
		2124
		2125	=back
		2126
		2127	=head2 The C<urxvt::pw> Class
		2128
		2129	This class implements process watchers. They create an event whenever a
		2130	process exits, after which they stop automatically.
		2131
		2132	my $pid = fork;
		2133	...
		2134	$term->{pw} = urxvt::pw
		2135	->new
		2136	->start ($pid)
		2137	->cb (sub {
		2138	my ($pw, $exit_status) = @_;
		2139	...
		2140	});
		2141
		2142	=over 4
		2143
		2144	=item $pw = new urxvt::pw
		2145
		2146	Create a new process watcher in stopped state.
		2147
		2148	=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
		2149
		2150	Set the callback to be called when the timer triggers.
		2151
		2152	=item $pw = $timer->start ($pid)
		2153
		2154	Tells the watcher to start watching for process C<$pid>.
		2155
		2156	=item $pw = $pw->stop
		2157
		2158	Stop the watcher.
1025		2159
1026	=back	2160	=back
1027		2161
1028	=head1 ENVIRONMENT	2162	=head1 ENVIRONMENT
1029		2163
…		…
1032	This variable controls the verbosity level of the perl extension. Higher	2166	This variable controls the verbosity level of the perl extension. Higher
1033	numbers indicate more verbose output.	2167	numbers indicate more verbose output.
1034		2168
1035	=over 4	2169	=over 4
1036		2170
1037	=item =0 - only fatal messages	2171	=item == 0 - fatal messages
1038		2172
1039	=item =3 - script loading and management	2173	=item >= 3 - script loading and management
1040		2174
1041	=item =10 - all events received	2175	=item >=10 - all called hooks
		2176
		2177	=item >=11 - hook return values
1042		2178
1043	=back	2179	=back
1044		2180
1045	=head1 AUTHOR	2181	=head1 AUTHOR
1046		2182
…		…
1048	http://software.schmorp.de/pkg/rxvt-unicode	2184	http://software.schmorp.de/pkg/rxvt-unicode
1049		2185
1050	=cut	2186	=cut
1051		2187
1052	1	2188	1
		2189
		2190	# vim: sw=3:

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