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Revision 1.56 by root, Sun Jan 8 05:52:42 2006 UTC vs.
Revision 1.188 by sf-exg, Sat Jul 24 13:04:27 2010 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 (enabled by default)	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
…		…
58		94
59	=back	95	=back
60		96
61	=item option-popup (enabled by default)	97	=item option-popup (enabled by default)
62		98
63	Binds a popup menu to Ctrl-Button3 that lets you toggle (some) options at	99	Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at
64	runtime.	100	runtime.
65		101
66	=item digital-clock	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.
67		105
68	Displays a digital clock using the built-in overlay.	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.
69		111
70	=item mark-urls	112	The following will add an entry C<myoption> that changes
		113	C<< $self->{myoption} >>:
71		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
72	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.
73		313
74	=item block-graphics-to-ascii	314	=item block-graphics-to-ascii
75		315
76	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
77	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
78	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 whether xrdb is used to parse the resource file
		376	or not.
		377
		378	=item macosx-clipboard and macosx-clipboard-native
		379
		380	These two modules implement an extended clipboard for Mac OS X. They are
		381	used like this:
		382
		383	URxvt.perl-ext-common: default,macosx-clipboard
		384	URxvt.keysym.M-c: perl:macosx-clipboard:copy
		385	URxvt.keysym.M-v: perl:macosx-clipboard:paste
		386
		387	The difference between them is that the native variant requires a
		388	perl from apple's devkit or so, and C<macosx-clipboard> requires the
		389	C<Mac::Pasteboard> module, works with other perls, has fewer bugs, is
		390	simpler etc. etc.
79		391
80	=item example-refresh-hooks	392	=item example-refresh-hooks
81		393
82	Displays a very simple digital clock in the upper right corner of the	394	Displays a very simple digital clock in the upper right corner of the
83	window. Illustrates overwriting the refresh callbacks to create your own	395	window. Illustrates overwriting the refresh callbacks to create your own
84	overlays or changes.	396	overlays or changes.
85		397
		398	=item confirm-paste
		399
		400	Displays a confirmation dialog when a paste containing at least a full
		401	line is detected.
		402
86	=back	403	=back
		404
		405	=head1 API DOCUMENTATION
87		406
88	=head2 General API Considerations	407	=head2 General API Considerations
89		408
90	All objects (such as terminals, time watchers etc.) are typical	409	All objects (such as terminals, time watchers etc.) are typical
91	reference-to-hash objects. The hash can be used to store anything you	410	reference-to-hash objects. The hash can be used to store anything you
…		…
103		422
104	=over 4	423	=over 4
105		424
106	=item $text	425	=item $text
107		426
108	Rxvt-unicodes special way of encoding text, where one "unicode" character	427	Rxvt-unicode's special way of encoding text, where one "unicode" character
109	always represents one screen cell. See L<row_t> for a discussion of this format.	428	always represents one screen cell. See L<ROW_t> for a discussion of this format.
110		429
111	=item $string	430	=item $string
112		431
113	A perl text string, with an emphasis on I<text>. It can store all unicode	432	A perl text string, with an emphasis on I<text>. It can store all unicode
114	characters and is to be distinguished with text encoded in a specific	433	characters and is to be distinguished with text encoded in a specific
…		…
119	Either binary data or - more common - a text string encoded in a	438	Either binary data or - more common - a text string encoded in a
120	locale-specific way.	439	locale-specific way.
121		440
122	=back	441	=back
123		442
		443	=head2 Extension Objects
		444
		445	Every perl extension is a perl class. A separate perl object is created
		446	for each terminal, and each terminal has its own set of extenion objects,
		447	which are passed as the first parameter to hooks. So extensions can use
		448	their C<$self> object without having to think about clashes with other
		449	extensions or other terminals, with the exception of methods and members
		450	that begin with an underscore character C<_>: these are reserved for
		451	internal use.
		452
		453	Although it isn't a C<urxvt::term> object, you can call all methods of the
		454	C<urxvt::term> class on this object.
		455
		456	It has the following methods and data members:
		457
		458	=over 4
		459
		460	=item $urxvt_term = $self->{term}
		461
		462	Returns the C<urxvt::term> object associated with this instance of the
		463	extension. This member I<must not> be changed in any way.
		464
		465	=item $self->enable ($hook_name => $cb, [$hook_name => $cb..])
		466
		467	Dynamically enable the given hooks (named without the C<on_> prefix) for
		468	this extension, replacing any previous hook. This is useful when you want
		469	to overwrite time-critical hooks only temporarily.
		470
		471	=item $self->disable ($hook_name[, $hook_name..])
		472
		473	Dynamically disable the given hooks.
		474
		475	=back
		476
124	=head2 Hooks	477	=head2 Hooks
125		478
126	The following subroutines can be declared in extension files, and will be	479	The following subroutines can be declared in extension files, and will be
127	called whenever the relevant event happens.	480	called whenever the relevant event happens.
128		481
129	The first argument passed to them is an object private to each terminal	482	The first argument passed to them is an extension object as described in
130	and extension package. You can call all C<urxvt::term> methods on it, but	483	the in the C<Extension Objects> section.
131	its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
132	object that is shared between all packages is stored in the C<term>
133	member. It is, however, blessed intot he package of the extension script,
134	so for all practical purposes you can treat an extension script as a class.
135		484
136	All of them must return a boolean value. If it is true, then the event	485	B<All> of these hooks must return a boolean value. If any of the called
137	counts as being I<consumed>, and the invocation of other hooks is skipped,	486	hooks returns true, then the event counts as being I<consumed>, and the
138	and the relevant action might not be carried out by the C++ code.	487	relevant action might not be carried out by the C++ code.
139		488
140	When in doubt, return a false value (preferably C<()>).	489	I<< When in doubt, return a false value (preferably C<()>). >>
141		490
142	=over 4	491	=over 4
143		492
144	=item on_init $term	493	=item on_init $term
145		494
146	Called after a new terminal object has been initialized, but before	495	Called after a new terminal object has been initialized, but before
147	windows are created or the command gets run. Most methods are unsafe to	496	windows are created or the command gets run. Most methods are unsafe to
148	call or deliver senseless data, as terminal size and other characteristics	497	call or deliver senseless data, as terminal size and other characteristics
149	have not yet been determined. You can safely query and change resources,	498	have not yet been determined. You can safely query and change resources
150	though.	499	and options, though. For many purposes the C<on_start> hook is a better
		500	place.
		501
		502	=item on_start $term
		503
		504	Called at the very end of initialisation of a new terminal, just before
		505	trying to map (display) the toplevel and returning to the main loop.
		506
		507	=item on_destroy $term
		508
		509	Called whenever something tries to destroy terminal, when the terminal is
		510	still fully functional (not for long, though).
151		511
152	=item on_reset $term	512	=item on_reset $term
153		513
154	Called after the screen is "reset" for any reason, such as resizing or	514	Called after the screen is "reset" for any reason, such as resizing or
155	control sequences. Here is where you can react on changes to size-related	515	control sequences. Here is where you can react on changes to size-related
156	variables.	516	variables.
157		517
158	=item on_start $term	518	=item on_child_start $term, $pid
159		519
160	Called at the very end of initialisation of a new terminal, just before	520	Called just after the child process has been C<fork>ed.
161	returning to the mainloop.	521
		522	=item on_child_exit $term, $status
		523
		524	Called just after the child process has exited. C<$status> is the status
		525	from C<waitpid>.
162		526
163	=item on_sel_make $term, $eventtime	527	=item on_sel_make $term, $eventtime
164		528
165	Called whenever a selection has been made by the user, but before the	529	Called whenever a selection has been made by the user, but before the
166	selection text is copied, so changes to the beginning, end or type of the	530	selection text is copied, so changes to the beginning, end or type of the
…		…
173		537
174	Called whenever a selection has been copied, but before the selection is	538	Called whenever a selection has been copied, but before the selection is
175	requested from the server. The selection text can be queried and changed	539	requested from the server. The selection text can be queried and changed
176	by calling C<< $term->selection >>.	540	by calling C<< $term->selection >>.
177		541
178	Returning a true value aborts selection grabbing. It will still be hilighted.	542	Returning a true value aborts selection grabbing. It will still be highlighted.
179		543
180	=item on_sel_extend $term	544	=item on_sel_extend $term
181		545
182	Called whenever the user tries to extend the selection (e.g. with a double	546	Called whenever the user tries to extend the selection (e.g. with a double
183	click) and is either supposed to return false (normal operation), or	547	click) and is either supposed to return false (normal operation), or
184	should extend the selection itelf and return true to suppress the built-in	548	should extend the selection itself and return true to suppress the built-in
185	processing.	549	processing. This can happen multiple times, as long as the callback
		550	returns true, it will be called on every further click by the user and is
		551	supposed to enlarge the selection more and more, if possible.
186		552
187	See the F<selection> example extension.	553	See the F<selection> example extension.
188		554
189	=item on_view_change $term, $offset	555	=item on_view_change $term, $offset
190		556
191	Called whenever the view offset changes, i..e the user or program	557	Called whenever the view offset changes, i.e. the user or program
192	scrolls. Offset C<0> means display the normal terminal, positive values	558	scrolls. Offset C<0> means display the normal terminal, positive values
193	show this many lines of scrollback.	559	show this many lines of scrollback.
194		560
195	=item on_scroll_back $term, $lines, $saved	561	=item on_scroll_back $term, $lines, $saved
196		562
…		…
200		566
201	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,	567	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
202	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total	568	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
203	number of lines that will be in the scrollback buffer.	569	number of lines that will be in the scrollback buffer.
204		570
205	=item on_tty_activity $term *NYI*
206
207	Called whenever the program(s) running in the urxvt window send output.
208
209	=item on_osc_seq $term, $string	571	=item on_osc_seq $term, $op, $args, $resp
		572
		573	Called on every OSC sequence and can be used to suppress it or modify its
		574	behaviour. The default should be to return an empty list. A true value
		575	suppresses execution of the request completely. Make sure you don't get
		576	confused by recursive invocations when you output an OSC sequence within
		577	this callback.
		578
		579	C<on_osc_seq_perl> should be used for new behaviour.
		580
		581	=item on_osc_seq_perl $term, $args, $resp
210		582
211	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =	583	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
212	operating system command) is processed. Cursor position and other state	584	operating system command) is processed. Cursor position and other state
213	information is up-to-date when this happens. For interoperability, the	585	information is up-to-date when this happens. For interoperability, the
214	string should start with the extension name and a colon, to distinguish	586	string should start with the extension name (sans -osc) and a semicolon,
215	it from commands for other extensions, and this might be enforced in the	587	to distinguish it from commands for other extensions, and this might be
216	future.	588	enforced in the future.
		589
		590	For example, C<overlay-osc> uses this:
		591
		592	sub on_osc_seq_perl {
		593	my ($self, $osc, $resp) = @_;
		594
		595	return unless $osc =~ s/^overlay;//;
		596
		597	... process remaining $osc string
		598	}
217		599
218	Be careful not ever to trust (in a security sense) the data you receive,	600	Be careful not ever to trust (in a security sense) the data you receive,
219	as its source can not easily be controleld (e-mail content, messages from	601	as its source can not easily be controlled (e-mail content, messages from
220	other users on the same system etc.).	602	other users on the same system etc.).
		603
		604	For responses, C<$resp> contains the end-of-args separator used by the
		605	sender.
221		606
222	=item on_add_lines $term, $string	607	=item on_add_lines $term, $string
223		608
224	Called whenever text is about to be output, with the text as argument. You	609	Called whenever text is about to be output, with the text as argument. You
225	can filter/change and output the text yourself by returning a true value	610	can filter/change and output the text yourself by returning a true value
226	and calling C<< $term->scr_add_lines >> yourself. Please note that this	611	and calling C<< $term->scr_add_lines >> yourself. Please note that this
227	might be very slow, however, as your hook is called for B<all> text being	612	might be very slow, however, as your hook is called for B<all> text being
228	output.	613	output.
229		614
		615	=item on_tt_write $term, $octets
		616
		617	Called whenever some data is written to the tty/pty and can be used to
		618	suppress or filter tty input.
		619
		620	=item on_tt_paste $term, $octets
		621
		622	Called whenever text is about to be pasted, with the text as argument. You
		623	can filter/change and paste the text yourself by returning a true value
		624	and calling C<< $term->tt_paste >> yourself. C<$octets> is
		625	locale-encoded.
		626
230	=item on_line_update $term, $row	627	=item on_line_update $term, $row
231		628
232	Called whenever a line was updated or changed. Can be used to filter	629	Called whenever a line was updated or changed. Can be used to filter
233	screen output (e.g. underline urls or other useless stuff). Only lines	630	screen output (e.g. underline urls or other useless stuff). Only lines
234	that are being shown will be filtered, and, due to performance reasons,	631	that are being shown will be filtered, and, due to performance reasons,
…		…
241	later with the already-modified line (e.g. if unrelated parts change), so	638	later with the already-modified line (e.g. if unrelated parts change), so
242	you cannot just toggle rendition bits, but only set them.	639	you cannot just toggle rendition bits, but only set them.
243		640
244	=item on_refresh_begin $term	641	=item on_refresh_begin $term
245		642
246	Called just before the screen gets redrawn. Can be used for overlay	643	Called just before the screen gets redrawn. Can be used for overlay or
247	or similar effects by modify terminal contents in refresh_begin, and	644	similar effects by modifying the terminal contents in refresh_begin, and
248	restoring them in refresh_end. The built-in overlay and selection display	645	restoring them in refresh_end. The built-in overlay and selection display
249	code is run after this hook, and takes precedence.	646	code is run after this hook, and takes precedence.
250		647
251	=item on_refresh_end $term	648	=item on_refresh_end $term
252		649
253	Called just after the screen gets redrawn. See C<on_refresh_begin>.	650	Called just after the screen gets redrawn. See C<on_refresh_begin>.
254		651
255	=item on_keyboard_command $term, $string	652	=item on_user_command $term, $string
256		653
257	Called whenever the user presses a key combination that has a	654	Called whenever a user-configured event is being activated (e.g. via
258	C<perl:string> action bound to it (see description of the B<keysym>	655	a C<perl:string> action bound to a key, see description of the B<keysym>
259	resource in the @@RXVT_NAME@@(1) manpage).	656	resource in the @@RXVT_NAME@@(1) manpage).
		657
		658	The event is simply the action string. This interface is assumed to change
		659	slightly in the future.
		660
		661	=item on_resize_all_windows $term, $new_width, $new_height
		662
		663	Called just after the new window size has been calculated, but before
		664	windows are actually being resized or hints are being set. If this hook
		665	returns TRUE, setting of the window hints is being skipped.
		666
		667	=item on_x_event $term, $event
		668
		669	Called on every X event received on the vt window (and possibly other
		670	windows). Should only be used as a last resort. Most event structure
		671	members are not passed.
		672
		673	=item on_root_event $term, $event
		674
		675	Like C<on_x_event>, but is called for events on the root window.
260		676
261	=item on_focus_in $term	677	=item on_focus_in $term
262		678
263	Called whenever the window gets the keyboard focus, before rxvt-unicode	679	Called whenever the window gets the keyboard focus, before rxvt-unicode
264	does focus in processing.	680	does focus in processing.
265		681
266	=item on_focus_out $term	682	=item on_focus_out $term
267		683
268	Called wheneever the window loses keyboard focus, before rxvt-unicode does	684	Called whenever the window loses keyboard focus, before rxvt-unicode does
269	focus out processing.	685	focus out processing.
270		686
		687	=item on_configure_notify $term, $event
		688
		689	=item on_property_notify $term, $event
		690
271	=item on_key_press $term, $event, $octets	691	=item on_key_press $term, $event, $keysym, $octets
272		692
273	=item on_key_release $term, $event	693	=item on_key_release $term, $event, $keysym
274		694
275	=item on_button_press $term, $event	695	=item on_button_press $term, $event
276		696
277	=item on_button_release $term, $event	697	=item on_button_release $term, $event
278		698
…		…
280		700
281	=item on_map_notify $term, $event	701	=item on_map_notify $term, $event
282		702
283	=item on_unmap_notify $term, $event	703	=item on_unmap_notify $term, $event
284		704
285	Called whenever the corresponding X event is received for the terminal If	705	Called whenever the corresponding X event is received for the terminal. If
286	the hook returns true, then the even will be ignored by rxvt-unicode.	706	the hook returns true, then the event will be ignored by rxvt-unicode.
287		707
288	The event is a hash with most values as named by Xlib (see the XEvent	708	The event is a hash with most values as named by Xlib (see the XEvent
289	manpage), with the additional members C<row> and C<col>, which are the row	709	manpage), with the additional members C<row> and C<col>, which are the
290	and column under the mouse cursor.	710	(real, not screen-based) row and column under the mouse cursor.
291		711
292	C<on_key_press> additionally receives the string rxvt-unicode would	712	C<on_key_press> additionally receives the string rxvt-unicode would
293	output, if any, in locale-specific encoding.	713	output, if any, in locale-specific encoding.
294		714
295	subwindow.	715	subwindow.
296		716
		717	=item on_client_message $term, $event
		718
		719	=item on_wm_protocols $term, $event
		720
		721	=item on_wm_delete_window $term, $event
		722
		723	Called when various types of ClientMessage events are received (all with
		724	format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
		725
		726	=item on_bell $term
		727
		728	Called on receipt of a bell character.
		729
297	=back	730	=back
298		731
		732	=cut
		733
		734	package urxvt;
		735
		736	use utf8;
		737	use strict;
		738	use Carp ();
		739	use Scalar::Util ();
		740	use List::Util ();
		741
		742	our $VERSION = 1;
		743	our $TERM;
		744	our @TERM_INIT;
		745	our @TERM_EXT;
		746	our @HOOKNAME;
		747	our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
		748	our %OPTION;
		749
		750	our $LIBDIR;
		751	our $RESNAME;
		752	our $RESCLASS;
		753	our $RXVTNAME;
		754
		755	our $NOCHAR = chr 0xffff;
		756
299	=head2 Variables in the C<urxvt> Package	757	=head2 Variables in the C<urxvt> Package
300		758
301	=over 4	759	=over 4
		760
		761	=item $urxvt::LIBDIR
		762
		763	The rxvt-unicode library directory, where, among other things, the perl
		764	modules and scripts are stored.
		765
		766	=item $urxvt::RESCLASS, $urxvt::RESCLASS
		767
		768	The resource class and name rxvt-unicode uses to look up X resources.
		769
		770	=item $urxvt::RXVTNAME
		771
		772	The basename of the installed binaries, usually C<urxvt>.
302		773
303	=item $urxvt::TERM	774	=item $urxvt::TERM
304		775
305	The current terminal. This variable stores the current C<urxvt::term>	776	The current terminal. This variable stores the current C<urxvt::term>
306	object, whenever a callback/hook is executing.	777	object, whenever a callback/hook is executing.
307		778
		779	=item @urxvt::TERM_INIT
		780
		781	All code references in this array will be called as methods of the next newly
		782	created C<urxvt::term> object (during the C<on_init> phase). The array
		783	gets cleared before the code references that were in it are being executed,
		784	so references can push themselves onto it again if they so desire.
		785
		786	This complements to the perl-eval command line option, but gets executed
		787	first.
		788
		789	=item @urxvt::TERM_EXT
		790
		791	Works similar to C<@TERM_INIT>, but contains perl package/class names, which
		792	get registered as normal extensions after calling the hooks in C<@TERM_INIT>
		793	but before other extensions. Gets cleared just like C<@TERM_INIT>.
		794
308	=back	795	=back
309		796
310	=head2 Functions in the C<urxvt> Package	797	=head2 Functions in the C<urxvt> Package
311		798
312	=over 4	799	=over 4
313
314	=item $term = new urxvt [arg...]
315
316	Creates a new terminal, very similar as if you had started it with
317	C<system $binfile, arg...>. Croaks (and probably outputs an error message)
318	if the new instance couldn't be created. Returns C<undef> if the new
319	instance didn't initialise perl, and the terminal object otherwise. The
320	C<init> and C<start> hooks will be called during the call.
321		800
322	=item urxvt::fatal $errormessage	801	=item urxvt::fatal $errormessage
323		802
324	Fatally aborts execution with the given error message. Avoid at all	803	Fatally aborts execution with the given error message. Avoid at all
325	costs! The only time this is acceptable is when the terminal process	804	costs! The only time this is acceptable is when the terminal process
…		…
332	that calls this function.	811	that calls this function.
333		812
334	Using this function has the advantage that its output ends up in the	813	Using this function has the advantage that its output ends up in the
335	correct place, e.g. on stderr of the connecting urxvtc client.	814	correct place, e.g. on stderr of the connecting urxvtc client.
336		815
		816	Messages have a size limit of 1023 bytes currently.
		817
		818	=item @terms = urxvt::termlist
		819
		820	Returns all urxvt::term objects that exist in this process, regardless of
		821	whether they are started, being destroyed etc., so be careful. Only term
		822	objects that have perl extensions attached will be returned (because there
		823	is no urxvt::term objet associated with others).
		824
337	=item $time = urxvt::NOW	825	=item $time = urxvt::NOW
338		826
339	Returns the "current time" (as per the event loop).	827	Returns the "current time" (as per the event loop).
340		828
341	=item urxvt::CurrentTime	829	=item urxvt::CurrentTime
342		830
343	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,	831	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
344	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,	832	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
345	Button4Mask, Button5Mask, AnyModifier	833	Button4Mask, Button5Mask, AnyModifier
		834
		835	=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
		836	ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
		837	PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
		838	Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
		839	KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
		840	ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
		841	FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
		842
		843	=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
		844	EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
		845	GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
		846	UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
		847	ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
		848	CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
		849	SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
346		850
347	Various constants for use in X calls and event processing.	851	Various constants for use in X calls and event processing.
348		852
349	=back	853	=back
350		854
…		…
379		883
380	=item $background = urxvt::GET_BASEBG $rend	884	=item $background = urxvt::GET_BASEBG $rend
381		885
382	Return the foreground/background colour index, respectively.	886	Return the foreground/background colour index, respectively.
383		887
384	=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)	888	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
385		889
386	=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)	890	=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
		891
		892	=item $rend = urxvt::SET_COLOR $rend, $new_fg, $new_bg
387		893
388	Replace the foreground/background colour in the rendition mask with the	894	Replace the foreground/background colour in the rendition mask with the
389	specified one.	895	specified one.
390		896
391	=item $value = urxvt::GET_CUSTOM ($rend)	897	=item $value = urxvt::GET_CUSTOM $rend
392		898
393	Return the "custom" value: Every rendition has 5 bits for use by	899	Return the "custom" value: Every rendition has 5 bits for use by
394	extensions. They can be set and changed as you like and are initially	900	extensions. They can be set and changed as you like and are initially
395	zero.	901	zero.
396		902
397	=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)	903	=item $rend = urxvt::SET_CUSTOM $rend, $new_value
398		904
399	Change the custom value.	905	Change the custom value.
400		906
401	=back	907	=back
402		908
403	=cut	909	=cut
404		910
405	package urxvt;
406
407	use utf8;
408	use strict;
409	use Scalar::Util ();
410	use List::Util ();
411
412	our $VERSION = 1;
413	our $TERM;
414	our @HOOKNAME;
415	our %OPTION;
416	our $LIBDIR;
417
418	BEGIN {	911	BEGIN {
419	urxvt->bootstrap;
420
421	# overwrite perl's warn	912	# overwrite perl's warn
422	*CORE::GLOBAL::warn = sub {	913	*CORE::GLOBAL::warn = sub {
423	my $msg = join "", @_;	914	my $msg = join "", @_;
424	$msg .= "\n"	915	$msg .= "\n"
425	unless $msg =~ /\n$/;	916	unless $msg =~ /\n$/;
426	urxvt::warn ($msg);	917	urxvt::warn ($msg);
427	};	918	};
428	}	919	}
429		920
430	my @hook_count;	921	no warnings 'utf8';
		922
431	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};	923	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
432		924
433	sub verbose {	925	sub verbose {
434	my ($level, $msg) = @_;	926	my ($level, $msg) = @_;
435	warn "$msg\n" if $level <= $verbosity;	927	warn "$msg\n" if $level <= $verbosity;
436	}	928	}
437		929
438	# find on_xxx subs in the package and register them
439	# as hooks
440	sub register_package($) {
441	my ($pkg) = @_;
442
443	for my $htype (0.. $#HOOKNAME) {
444	my $name = $HOOKNAME[$htype];
445
446	my $ref = $pkg->can ("on_" . lc $name)
447	or next;
448
449	$TERM->{_hook}[$htype]{$pkg} = $ref;
450	$hook_count[$htype]++
451	or set_should_invoke $htype, 1;
452	}
453	}
454
455	my $extension_pkg = "extension0000";
456	my %extension_pkg;	930	my %extension_pkg;
457		931
458	# load a single script into its own package, once only	932	# load a single script into its own package, once only
459	sub extension_package($) {	933	sub extension_package($) {
460	my ($path) = @_;	934	my ($path) = @_;
461		935
462	$extension_pkg{$path} ||= do {	936	$extension_pkg{$path} ||= do {
463	my $pkg = "urxvt::" . ($extension_pkg++);	937	$path =~ /([^\/\\]+)$/;
		938	my $pkg = $1;
		939	$pkg =~ s/[^[:word:]]/_/g;
		940	$pkg = "urxvt::ext::$pkg";
464		941
465	verbose 3, "loading extension '$path' into package '$pkg'";	942	verbose 3, "loading extension '$path' into package '$pkg'";
466		943
467	open my $fh, "<:raw", $path	944	open my $fh, "<:raw", $path
468	or die "$path: $!";	945	or die "$path: $!";
469		946
470	my $source = "package $pkg; use strict; use utf8;\n"	947	my $source =
471	. "use base urxvt::term::proxy::;\n"	948	"package $pkg; use strict; use utf8; no warnings 'utf8';\n"
472	. "#line 1 \"$path\"\n{\n"	949	. "#line 1 \"$path\"\n{\n"
473	. (do { local $/; <$fh> })	950	. (do { local $/; <$fh> })
474	. "\n};\n1";	951	. "\n};\n1";
475		952
		953	eval $source
476	eval $source or die "$path: $@";	954	or die "$path: $@";
477		955
478	$pkg	956	$pkg
479	}	957	}
480	}	958	}
481		959
…		…
486	local $TERM = shift;	964	local $TERM = shift;
487	my $htype = shift;	965	my $htype = shift;
488		966
489	if ($htype == 0) { # INIT	967	if ($htype == 0) { # INIT
490	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");	968	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
		969
		970	my %ext_arg;
		971
491		972	{
492	my %want_ext;	973	my @init = @TERM_INIT;
		974	@TERM_INIT = ();
		975	$_->($TERM) for @init;
		976	my @pkg = @TERM_EXT;
		977	@TERM_EXT = ();
		978	$TERM->register_package ($_) for @pkg;
		979	}
493		980
494	for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {	981	for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
495	if ($_ eq "default") {	982	if ($_ eq "default") {
496	$want_ext{$_}++ for qw(selection option-popup);	983	$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
497	} elsif (/^-(.*)$/) {	984	} elsif (/^-(.*)$/) {
498	delete $want_ext{$1};	985	delete $ext_arg{$1};
		986	} elsif (/^([^<]+)<(.*)>$/) {
		987	push @{ $ext_arg{$1} }, $2;
499	} else {	988	} else {
500	$want_ext{$_}++;	989	$ext_arg{$_} ||= [];
501	}	990	}
502	}	991	}
503		992
504	for my $ext (keys %want_ext) {	993	for my $ext (sort keys %ext_arg) {
505	my @files = grep -f $_, map "$_/$ext", @dirs;	994	my @files = grep -f $_, map "$_/$ext", @dirs;
506		995
507	if (@files) {	996	if (@files) {
508	register_package extension_package $files[0];	997	$TERM->register_package (extension_package $files[0], $ext_arg{$ext});
509	} else {	998	} else {
510	warn "perl extension '$ext' not found in perl library search path\n";	999	warn "perl extension '$ext' not found in perl library search path\n";
511	}	1000	}
512	}	1001	}
513		1002
…		…
519		1008
520	if (my $cb = $TERM->{_hook}[$htype]) {	1009	if (my $cb = $TERM->{_hook}[$htype]) {
521	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"	1010	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
522	if $verbosity >= 10;	1011	if $verbosity >= 10;
523		1012
524	keys %$cb;	1013	for my $pkg (keys %$cb) {
		1014	my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg}, @_) };
		1015	$retval ||= $retval_;
525		1016
526	while (my ($pkg, $cb) = each %$cb) {	1017	if ($@) {
527	eval {	1018	$TERM->ungrab; # better to lose the grab than the session
528	$retval = $cb->(	1019	warn $@;
529	$TERM->{_pkg}{$pkg} ||= do {
530	my $proxy = bless { }, $pkg;
531	Scalar::Util::weaken ($proxy->{term} = $TERM);
532	$proxy
533	},
534	@_,
535	) and last;
536	};
537	warn $@ if $@;#d#
538	}
539	}
540
541	if ($htype == 1) { # DESTROY
542	# remove hooks if unused
543	if (my $hook = $TERM->{_hook}) {
544	for my $htype (0..$#$hook) {
545	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
546	or set_should_invoke $htype, 0;
547	}	1020	}
548	}	1021	}
549		1022
		1023	verbose 11, "$HOOKNAME[$htype] returning <$retval>"
		1024	if $verbosity >= 11;
		1025	}
		1026
		1027	if ($htype == 1) { # DESTROY
550	# clear package objects	1028	# clear package objects
551	%$_ = () for values %{ $TERM->{_pkg} };	1029	%$_ = () for values %{ $TERM->{_pkg} };
552		1030
553	# clear package	1031	# clear package
554	%$TERM = ();	1032	%$TERM = ();
555	}	1033	}
556		1034
557	$retval	1035	$retval
558	}	1036	}
559		1037
560	# urxvt::term::proxy	1038	sub SET_COLOR($$$) {
		1039	SET_BGCOLOR (SET_FGCOLOR ($_[0], $_[1]), $_[2])
		1040	}
561		1041
562	sub urxvt::term::proxy::AUTOLOAD {	1042	sub rend2mask {
563	$urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/	1043	no strict 'refs';
		1044	my ($str, $mask) = (@_, 0);
		1045	my %color = ( fg => undef, bg => undef );
		1046	my @failed;
		1047	for my $spec ( split /\s+/, $str ) {
		1048	if ( $spec =~ /^([fb]g)[_:-]?(\d+)/i ) {
		1049	$color{lc($1)} = $2;
		1050	} else {
		1051	my $neg = $spec =~ s/^[-^]//;
		1052	unless ( exists &{"RS_$spec"} ) {
		1053	push @failed, $spec;
		1054	next;
		1055	}
		1056	my $cur = &{"RS_$spec"};
		1057	if ( $neg ) {
		1058	$mask &= ~$cur;
		1059	} else {
		1060	$mask |= $cur;
		1061	}
		1062	}
		1063	}
		1064	($mask, @color{qw(fg bg)}, \@failed)
		1065	}
		1066
		1067	# urxvt::term::extension
		1068
		1069	package urxvt::term::extension;
		1070
		1071	sub enable {
		1072	my ($self, %hook) = @_;
		1073	my $pkg = $self->{_pkg};
		1074
		1075	while (my ($name, $cb) = each %hook) {
		1076	my $htype = $HOOKTYPE{uc $name};
		1077	defined $htype
		1078	or Carp::croak "unsupported hook type '$name'";
		1079
		1080	$self->set_should_invoke ($htype, +1)
		1081	unless exists $self->{term}{_hook}[$htype]{$pkg};
		1082
		1083	$self->{term}{_hook}[$htype]{$pkg} = $cb;
		1084	}
		1085	}
		1086
		1087	sub disable {
		1088	my ($self, @hook) = @_;
		1089	my $pkg = $self->{_pkg};
		1090
		1091	for my $name (@hook) {
		1092	my $htype = $HOOKTYPE{uc $name};
		1093	defined $htype
		1094	or Carp::croak "unsupported hook type '$name'";
		1095
		1096	$self->set_should_invoke ($htype, -1)
		1097	if delete $self->{term}{_hook}[$htype]{$pkg};
		1098	}
		1099	}
		1100
		1101	our $AUTOLOAD;
		1102
		1103	sub AUTOLOAD {
		1104	$AUTOLOAD =~ /:([^:]+)$/
564	or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";	1105	or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
565		1106
566	eval qq{	1107	eval qq{
567	sub $urxvt::term::proxy::AUTOLOAD {	1108	sub $AUTOLOAD {
568	my \$proxy = shift;	1109	my \$proxy = shift;
569	\$proxy->{term}->$1 (\@_)	1110	\$proxy->{term}->$1 (\@_)
570	}	1111	}
571	1	1112	1
572	} or die "FATAL: unable to compile method forwarder: $@";	1113	} or die "FATAL: unable to compile method forwarder: $@";
573		1114
574	goto &$urxvt::term::proxy::AUTOLOAD;	1115	goto &$AUTOLOAD;
		1116	}
		1117
		1118	sub DESTROY {
		1119	# nop
575	}	1120	}
576		1121
577	# urxvt::destroy_hook	1122	# urxvt::destroy_hook
578		1123
579	sub urxvt::destroy_hook::DESTROY {	1124	sub urxvt::destroy_hook::DESTROY {
…		…
588		1133
589	=head2 The C<urxvt::anyevent> Class	1134	=head2 The C<urxvt::anyevent> Class
590		1135
591	The sole purpose of this class is to deliver an interface to the	1136	The sole purpose of this class is to deliver an interface to the
592	C<AnyEvent> module - any module using it will work inside urxvt without	1137	C<AnyEvent> module - any module using it will work inside urxvt without
593	further work. The only exception is that you cannot wait on condition	1138	further programming. The only exception is that you cannot wait on
594	variables, but non-blocking condvar use is ok. What this means is that you	1139	condition variables, but non-blocking condvar use is ok. What this means
595	cannot use blocking APIs, but the non-blocking variant should work.	1140	is that you cannot use blocking APIs, but the non-blocking variant should
		1141	work.
596		1142
597	=cut	1143	=cut
598		1144
599	our $VERSION = 1;	1145	our $VERSION = '5.23';
600		1146
601	$INC{"urxvt/anyevent.pm"} = 1; # mark us as there	1147	$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
602	push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];	1148	push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
603		1149
604	sub timer {	1150	sub timer {
…		…
606		1152
607	my $cb = $arg{cb};	1153	my $cb = $arg{cb};
608		1154
609	urxvt::timer	1155	urxvt::timer
610	->new	1156	->new
611	->start (urxvt::NOW + $arg{after})	1157	->after ($arg{after}, $arg{interval})
612	->cb (sub {	1158	->cb ($arg{interval} ? $cb : sub {
613	$_[0]->stop; # need to cancel manually	1159	$_[0]->stop; # need to cancel manually
614	$cb->();	1160	$cb->();
615	})	1161	})
616	}	1162	}
617		1163
618	sub io {	1164	sub io {
619	my ($class, %arg) = @_;	1165	my ($class, %arg) = @_;
620		1166
621	my $cb = $arg{cb};	1167	my $cb = $arg{cb};
		1168	my $fd = fileno $arg{fh};
		1169	defined $fd or $fd = $arg{fh};
622		1170
623	bless [$arg{fh}, urxvt::iow	1171	bless [$arg{fh}, urxvt::iow
624	->new	1172	->new
625	->fd (fileno $arg{fh})	1173	->fd ($fd)
626	->events (($arg{poll} =~ /r/ ? 1 : 0)	1174	->events (($arg{poll} =~ /r/ ? 1 : 0)
627	| ($arg{poll} =~ /w/ ? 2 : 0))	1175	| ($arg{poll} =~ /w/ ? 2 : 0))
628	->start	1176	->start
629	->cb (sub {	1177	->cb ($cb)
630	$cb->(($_[1] & 1 ? 'r' : '')
631	. ($_[1] & 2 ? 'w' : ''));
632	})],
633	urxvt::anyevent::	1178	], urxvt::anyevent::
		1179	}
		1180
		1181	sub idle {
		1182	my ($class, %arg) = @_;
		1183
		1184	my $cb = $arg{cb};
		1185
		1186	urxvt::iw
		1187	->new
		1188	->start
		1189	->cb ($cb)
		1190	}
		1191
		1192	sub child {
		1193	my ($class, %arg) = @_;
		1194
		1195	my $cb = $arg{cb};
		1196
		1197	urxvt::pw
		1198	->new
		1199	->start ($arg{pid})
		1200	->cb (sub {
		1201	$_[0]->stop; # need to cancel manually
		1202	$cb->($_[0]->rpid, $_[0]->rstatus);
		1203	})
634	}	1204	}
635		1205
636	sub DESTROY {	1206	sub DESTROY {
637	$_[0][1]->stop;	1207	$_[0][1]->stop;
638	}	1208	}
639		1209
640	sub condvar {	1210	sub one_event {
641	bless \my $flag, urxvt::anyevent::condvar::
642	}
643
644	sub urxvt::anyevent::condvar::broadcast {
645	${$_[0]}++;
646	}
647
648	sub urxvt::anyevent::condvar::wait {
649	unless (${$_[0]}) {
650	require Carp;
651	Carp::croak ("AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API");	1211	Carp::croak "AnyEvent->one_event blocking wait unsupported in urxvt, use a non-blocking API";
		1212	}
		1213
		1214	package urxvt::term;
		1215
		1216	=head2 The C<urxvt::term> Class
		1217
		1218	=over 4
		1219
		1220	=cut
		1221
		1222	# find on_xxx subs in the package and register them
		1223	# as hooks
		1224	sub register_package {
		1225	my ($self, $pkg, $argv) = @_;
		1226
		1227	no strict 'refs';
		1228
		1229	urxvt::verbose 6, "register package $pkg to $self";
		1230
		1231	@{"$pkg\::ISA"} = urxvt::term::extension::;
		1232
		1233	my $proxy = bless {
		1234	_pkg => $pkg,
		1235	argv => $argv,
		1236	}, $pkg;
		1237	Scalar::Util::weaken ($proxy->{term} = $self);
		1238
		1239	$self->{_pkg}{$pkg} = $proxy;
		1240
		1241	for my $name (@HOOKNAME) {
		1242	if (my $ref = $pkg->can ("on_" . lc $name)) {
		1243	$proxy->enable ($name => $ref);
		1244	}
652	}	1245	}
653	}	1246	}
654		1247
655	package urxvt::term;	1248	=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
656		1249
657	=head2 The C<urxvt::term> Class	1250	Creates a new terminal, very similar as if you had started it with system
		1251	C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
		1252	hash which defines the environment of the new terminal.
658		1253
659	=over 4	1254	Croaks (and probably outputs an error message) if the new instance
		1255	couldn't be created. Returns C<undef> if the new instance didn't
		1256	initialise perl, and the terminal object otherwise. The C<init> and
		1257	C<start> hooks will be called before this call returns, and are free to
		1258	refer to global data (which is race free).
		1259
		1260	=cut
		1261
		1262	sub new {
		1263	my ($class, $env, @args) = @_;
		1264
		1265	$env or Carp::croak "environment hash missing in call to urxvt::term->new";
		1266	@args or Carp::croak "name argument missing in call to urxvt::term->new";
		1267
		1268	_new ([ map "$_=$env->{$_}", keys %$env ], \@args);
		1269	}
660		1270
661	=item $term->destroy	1271	=item $term->destroy
662		1272
663	Destroy the terminal object (close the window, free resources etc.).	1273	Destroy the terminal object (close the window, free resources
		1274	etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
		1275	watchers (timers, io watchers) are still active.
		1276
		1277	=item $term->exec_async ($cmd[, @args])
		1278
		1279	Works like the combination of the C<fork>/C<exec> builtins, which executes
		1280	("starts") programs in the background. This function takes care of setting
		1281	the user environment before exec'ing the command (e.g. C<PATH>) and should
		1282	be preferred over explicit calls to C<exec> or C<system>.
		1283
		1284	Returns the pid of the subprocess or C<undef> on error.
		1285
		1286	=cut
		1287
		1288	sub exec_async {
		1289	my $self = shift;
		1290
		1291	my $pid = fork;
		1292
		1293	return $pid
		1294	if !defined $pid or $pid;
		1295
		1296	%ENV = %{ $self->env };
		1297
		1298	exec @_;
		1299	urxvt::_exit 255;
		1300	}
664		1301
665	=item $isset = $term->option ($optval[, $set])	1302	=item $isset = $term->option ($optval[, $set])
666		1303
667	Returns true if the option specified by C<$optval> is enabled, and	1304	Returns true if the option specified by C<$optval> is enabled, and
668	optionally change it. All option values are stored by name in the hash	1305	optionally change it. All option values are stored by name in the hash
669	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.	1306	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
670		1307
671	Here is a a likely non-exhaustive list of option names, please see the	1308	Here is a likely non-exhaustive list of option names, please see the
672	source file F</src/optinc.h> to see the actual list:	1309	source file F</src/optinc.h> to see the actual list:
673		1310
674	borderLess console cursorBlink cursorUnderline hold iconic insecure	1311	borderLess console cursorBlink cursorUnderline hold iconic insecure
675	intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage	1312	intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
676	pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating	1313	override-redirect pastableTabs pointerBlank reverseVideo scrollBar
677	scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer	1314	scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
678	secondaryScreen secondaryScroll skipBuiltinGlyphs transparent	1315	scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
679	tripleclickwords utmpInhibit visualBell	1316	transparent tripleclickwords utmpInhibit visualBell
680		1317
681	=item $value = $term->resource ($name[, $newval])	1318	=item $value = $term->resource ($name[, $newval])
682		1319
683	Returns the current resource value associated with a given name and	1320	Returns the current resource value associated with a given name and
684	optionally sets a new value. Setting values is most useful in the C<init>	1321	optionally sets a new value. Setting values is most useful in the C<init>
…		…
693	likely change).	1330	likely change).
694		1331
695	Please note that resource strings will currently only be freed when the	1332	Please note that resource strings will currently only be freed when the
696	terminal is destroyed, so changing options frequently will eat memory.	1333	terminal is destroyed, so changing options frequently will eat memory.
697		1334
698	Here is a a likely non-exhaustive list of resource names, not all of which	1335	Here is a likely non-exhaustive list of resource names, not all of which
699	are supported in every build, please see the source file F</src/rsinc.h>	1336	are supported in every build, please see the source file F</src/rsinc.h>
700	to see the actual list:	1337	to see the actual list:
701		1338
702	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont	1339	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
703	borderLess color cursorBlink cursorUnderline cutchars delete_key	1340	borderLess chdir color cursorBlink cursorUnderline cutchars delete_key
704	display_name embed ext_bwidth fade font geometry hold iconName	1341	display_name embed ext_bwidth fade font geometry hold iconName
705	imFont imLocale inputMethod insecure int_bwidth intensityStyles	1342	imFont imLocale inputMethod insecure int_bwidth intensityStyles
706	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier	1343	italicFont jumpScroll lineSpace letterSpace loginShell mapAlert meta8
707	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2	1344	modifier mouseWheelScrollPage name override_redirect pastableTabs path
708	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd	1345	perl_eval perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
709	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating	1346	preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
710	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput	1347	scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
711	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle	1348	scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
712	shade term_name title transparent transparent_all tripleclickwords	1349	secondaryScreen secondaryScroll shade term_name title
713	utmpInhibit visualBell	1350	transient_for transparent transparent_all tripleclickwords utmpInhibit
		1351	visualBell
714		1352
715	=cut	1353	=cut
716		1354
717	sub resource($$;$) {	1355	sub resource($$;$) {
718	my ($self, $name) = (shift, shift);	1356	my ($self, $name) = (shift, shift);
719	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);	1357	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
720	&urxvt::term::_resource	1358	goto &urxvt::term::_resource
721	}	1359	}
		1360
		1361	=item $value = $term->x_resource ($pattern)
		1362
		1363	Returns the X-Resource for the given pattern, excluding the program or
		1364	class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
		1365	same value as used by this instance of rxvt-unicode. Returns C<undef> if no
		1366	resource with that pattern exists.
		1367
		1368	This method should only be called during the C<on_start> hook, as there is
		1369	only one resource database per display, and later invocations might return
		1370	the wrong resources.
		1371
		1372	=item $success = $term->parse_keysym ($keysym_spec, $command_string)
		1373
		1374	Adds a keymap translation exactly as specified via a resource. See the
		1375	C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
722		1376
723	=item $rend = $term->rstyle ([$new_rstyle])	1377	=item $rend = $term->rstyle ([$new_rstyle])
724		1378
725	Return and optionally change the current rendition. Text that is output by	1379	Return and optionally change the current rendition. Text that is output by
726	the terminal application will use this style.	1380	the terminal application will use this style.
…		…
734		1388
735	=item ($row, $col) = $term->selection_beg ([$row, $col])	1389	=item ($row, $col) = $term->selection_beg ([$row, $col])
736		1390
737	=item ($row, $col) = $term->selection_end ([$row, $col])	1391	=item ($row, $col) = $term->selection_end ([$row, $col])
738		1392
739	Return the current values of the selection mark, begin or end positions,	1393	Return the current values of the selection mark, begin or end positions.
740	and optionally set them to new values.
741		1394
		1395	When arguments are given, then the selection coordinates are set to
		1396	C<$row> and C<$col>, and the selection screen is set to the current
		1397	screen.
		1398
		1399	=item $screen = $term->selection_screen ([$screen])
		1400
		1401	Returns the current selection screen, and then optionally sets it.
		1402
		1403	=item $term->selection_make ($eventtime[, $rectangular])
		1404
		1405	Tries to make a selection as set by C<selection_beg> and
		1406	C<selection_end>. If C<$rectangular> is true (default: false), a
		1407	rectangular selection will be made. This is the preferred function to make
		1408	a selection.
		1409
742	=item $success = $term->selection_grab ($eventtime)	1410	=item $success = $term->selection_grab ($eventtime[, $clipboard])
743		1411
744	Try to request the primary selection from the server (for example, as set	1412	Try to acquire ownership of the primary (clipboard if C<$clipboard> is
745	by the next method).	1413	true) selection from the server. The corresponding text can be set
		1414	with the next method. No visual feedback will be given. This function
		1415	is mostly useful from within C<on_sel_grab> hooks.
746		1416
747	=item $oldtext = $term->selection ([$newtext])	1417	=item $oldtext = $term->selection ([$newtext, $clipboard])
748		1418
749	Return the current selection text and optionally replace it by C<$newtext>.	1419	Return the current selection (clipboard if C<$clipboard> is true) text
		1420	and optionally replace it by C<$newtext>.
750		1421
		1422	=item $term->selection_clear ([$clipboard])
		1423
		1424	Revoke ownership of the primary (clipboard if C<$clipboard> is true) selection.
		1425
751	#=item $term->overlay ($x, $y, $text)	1426	=item $term->overlay_simple ($x, $y, $text)
752	#	1427
753	#Create a simple multi-line overlay box. See the next method for details.	1428	Create a simple multi-line overlay box. See the next method for details.
754	#	1429
755	#=cut	1430	=cut
756	#	1431
757	#sub urxvt::term::scr_overlay {	1432	sub overlay_simple {
758	# my ($self, $x, $y, $text) = @_;	1433	my ($self, $x, $y, $text) = @_;
759	#	1434
760	# my @lines = split /\n/, $text;	1435	my @lines = split /\n/, $text;
761	#	1436
762	# my $w = 0;	1437	my $w = List::Util::max map $self->strwidth ($_), @lines;
763	# for (map $self->strwidth ($_), @lines) {	1438
764	# $w = $_ if $w < $_;
765	# }
766	#
767	# $self->scr_overlay_new ($x, $y, $w, scalar @lines);	1439	my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
768	# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;	1440	$overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
769	#}	1441
		1442	$overlay
		1443	}
770		1444
771	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])	1445	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
772		1446
773	Create a new (empty) overlay at the given position with the given	1447	Create a new (empty) overlay at the given position with the given
774	width/height. C<$rstyle> defines the initial rendition style	1448	width/height. C<$rstyle> defines the initial rendition style
…		…
785		1459
786	The methods currently supported on C<urxvt::overlay> objects are:	1460	The methods currently supported on C<urxvt::overlay> objects are:
787		1461
788	=over 4	1462	=over 4
789		1463
790	=item $overlay->set ($x, $y, $text, $rend)	1464	=item $overlay->set ($x, $y, $text[, $rend])
791		1465
792	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts	1466	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts
793	text in rxvt-unicode's special encoding and an array of rendition values	1467	text in rxvt-unicode's special encoding and an array of rendition values
794	at a specific position inside the overlay.	1468	at a specific position inside the overlay.
		1469
		1470	If C<$rend> is missing, then the rendition will not be changed.
795		1471
796	=item $overlay->hide	1472	=item $overlay->hide
797		1473
798	If visible, hide the overlay, but do not destroy it.	1474	If visible, hide the overlay, but do not destroy it.
799		1475
…		…
841		1517
842	=item $string = $term->locale_decode ($octets)	1518	=item $string = $term->locale_decode ($octets)
843		1519
844	Convert the given locale-encoded octets into a perl string.	1520	Convert the given locale-encoded octets into a perl string.
845		1521
		1522	=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
		1523
		1524	XORs the rendition values in the given span with the provided value
		1525	(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
		1526	refresh hooks to provide effects similar to the selection.
		1527
		1528	=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
		1529
		1530	Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
		1531	whitespace will additionally be xored with the C<$rstyle2>, which defaults
		1532	to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
		1533	it instead. Both styles I<MUST NOT> contain font styles.
		1534
		1535	=item $term->scr_bell
		1536
		1537	Ring the bell!
		1538
846	=item $term->scr_add_lines ($string)	1539	=item $term->scr_add_lines ($string)
847		1540
848	Write the given text string to the screen, as if output by the application	1541	Write the given text string to the screen, as if output by the application
849	running inside the terminal. It may not contain command sequences (escape	1542	running inside the terminal. It may not contain command sequences (escape
850	codes), but is free to use line feeds, carriage returns and tabs. The	1543	codes), but is free to use line feeds, carriage returns and tabs. The
…		…
852		1545
853	Normally its not a good idea to use this function, as programs might be	1546	Normally its not a good idea to use this function, as programs might be
854	confused by changes in cursor position or scrolling. Its useful inside a	1547	confused by changes in cursor position or scrolling. Its useful inside a
855	C<on_add_lines> hook, though.	1548	C<on_add_lines> hook, though.
856		1549
		1550	=item $term->scr_change_screen ($screen)
		1551
		1552	Switch to given screen - 0 primary, 1 secondary.
		1553
857	=item $term->cmd_parse ($octets)	1554	=item $term->cmd_parse ($octets)
858		1555
859	Similar to C<scr_add_lines>, but the argument must be in the	1556	Similar to C<scr_add_lines>, but the argument must be in the
860	locale-specific encoding of the terminal and can contain command sequences	1557	locale-specific encoding of the terminal and can contain command sequences
861	(escape codes) that will be interpreted.	1558	(escape codes) that will be interpreted.
862		1559
863	=item $term->tt_write ($octets)	1560	=item $term->tt_write ($octets)
864		1561
865	Write the octets given in C<$data> to the tty (i.e. as program input). To	1562	Write the octets given in C<$octets> to the tty (i.e. as program input). To
866	pass characters instead of octets, you should convert your strings first	1563	pass characters instead of octets, you should convert your strings first
867	to the locale-specific encoding using C<< $term->locale_encode >>.	1564	to the locale-specific encoding using C<< $term->locale_encode >>.
868		1565
		1566	=item $term->tt_paste ($octets)
		1567
		1568	Write the octets given in C<$octets> to the tty as a paste, converting NL to
		1569	CR and bracketing the data with control sequences if bracketed paste mode
		1570	is set.
		1571
		1572	=item $old_events = $term->pty_ev_events ([$new_events])
		1573
		1574	Replaces the event mask of the pty watcher by the given event mask. Can
		1575	be used to suppress input and output handling to the pty/tty. See the
		1576	description of C<< urxvt::timer->events >>. Make sure to always restore
		1577	the previous value.
		1578
		1579	=item $fd = $term->pty_fd
		1580
		1581	Returns the master file descriptor for the pty in use, or C<-1> if no pty
		1582	is used.
		1583
869	=item $windowid = $term->parent	1584	=item $windowid = $term->parent
870		1585
871	Return the window id of the toplevel window.	1586	Return the window id of the toplevel window.
872		1587
873	=item $windowid = $term->vt	1588	=item $windowid = $term->vt
874		1589
875	Return the window id of the terminal window.	1590	Return the window id of the terminal window.
876		1591
		1592	=item $term->vt_emask_add ($x_event_mask)
		1593
		1594	Adds the specified events to the vt event mask. Useful e.g. when you want
		1595	to receive pointer events all the times:
		1596
		1597	$term->vt_emask_add (urxvt::PointerMotionMask);
		1598
		1599	=item $term->focus_in
		1600
		1601	=item $term->focus_out
		1602
		1603	=item $term->key_press ($state, $keycode[, $time])
		1604
		1605	=item $term->key_release ($state, $keycode[, $time])
		1606
		1607	Deliver various fake events to to terminal.
		1608
877	=item $window_width = $term->width	1609	=item $window_width = $term->width
878		1610
879	=item $window_height = $term->height	1611	=item $window_height = $term->height
880		1612
881	=item $font_width = $term->fwidth	1613	=item $font_width = $term->fwidth
…		…
894		1626
895	=item $max_scrollback = $term->saveLines	1627	=item $max_scrollback = $term->saveLines
896		1628
897	=item $nrow_plus_saveLines = $term->total_rows	1629	=item $nrow_plus_saveLines = $term->total_rows
898		1630
899	=item $lines_in_scrollback = $term->nsaved	1631	=item $topmost_scrollback_row = $term->top_row
900		1632
901	Return various integers describing terminal characteristics.	1633	Return various integers describing terminal characteristics.
		1634
		1635	=item $x_display = $term->display_id
		1636
		1637	Return the DISPLAY used by rxvt-unicode.
		1638
		1639	=item $lc_ctype = $term->locale
		1640
		1641	Returns the LC_CTYPE category string used by this rxvt-unicode.
		1642
		1643	=item $env = $term->env
		1644
		1645	Returns a copy of the environment in effect for the terminal as a hashref
		1646	similar to C<\%ENV>.
		1647
		1648	=item @envv = $term->envv
		1649
		1650	Returns the environment as array of strings of the form C<VAR=VALUE>.
		1651
		1652	=item @argv = $term->argv
		1653
		1654	Return the argument vector as this terminal, similar to @ARGV, but
		1655	includes the program name as first element.
		1656
		1657	=cut
		1658
		1659	sub env {
		1660	+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), $_[0]->envv }
		1661	}
902		1662
903	=item $modifiermask = $term->ModLevel3Mask	1663	=item $modifiermask = $term->ModLevel3Mask
904		1664
905	=item $modifiermask = $term->ModMetaMask	1665	=item $modifiermask = $term->ModMetaMask
906		1666
907	=item $modifiermask = $term->ModNumLockMask	1667	=item $modifiermask = $term->ModNumLockMask
908		1668
909	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often	1669	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
910	AltGr), the meta key (often Alt) and the num lock key, if applicable.	1670	AltGr), the meta key (often Alt) and the num lock key, if applicable.
911		1671
		1672	=item $screen = $term->current_screen
		1673
		1674	Returns the currently displayed screen (0 primary, 1 secondary).
		1675
		1676	=item $cursor_is_hidden = $term->hidden_cursor
		1677
		1678	Returns whether the cursor is currently hidden or not.
		1679
912	=item $view_start = $term->view_start ([$newvalue])	1680	=item $view_start = $term->view_start ([$newvalue])
913		1681
914	Returns the negative row number of the topmost line. Minimum value is	1682	Returns the row number of the topmost displayed line. Maximum value is
915	C<0>, which displays the normal terminal contents. Larger values scroll	1683	C<0>, which displays the normal terminal contents. Lower values scroll
916	this many lines into the scrollback buffer.	1684	this many lines into the scrollback buffer.
917		1685
918	=item $term->want_refresh	1686	=item $term->want_refresh
919		1687
920	Requests a screen refresh. At the next opportunity, rxvt-unicode will	1688	Requests a screen refresh. At the next opportunity, rxvt-unicode will
…		…
923		1691
924	Used after changing terminal contents to display them.	1692	Used after changing terminal contents to display them.
925		1693
926	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])	1694	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
927		1695
928	Returns the text of the entire row with number C<$row_number>. Row C<0>	1696	Returns the text of the entire row with number C<$row_number>. Row C<< $term->top_row >>
929	is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost	1697	is the topmost terminal line, row C<< $term->nrow-1 >> is the bottommost
930	terminal line. The scrollback buffer starts at line C<-1> and extends to
931	line C<< -$term->nsaved >>. Nothing will be returned if a nonexistent line	1698	terminal line. Nothing will be returned if a nonexistent line
932	is requested.	1699	is requested.
933		1700
934	If C<$new_text> is specified, it will replace characters in the current	1701	If C<$new_text> is specified, it will replace characters in the current
935	line, starting at column C<$start_col> (default C<0>), which is useful	1702	line, starting at column C<$start_col> (default C<0>), which is useful
936	to replace only parts of a line. The font index in the rendition will	1703	to replace only parts of a line. The font index in the rendition will
937	automatically be updated.	1704	automatically be updated.
938		1705
939	C<$text> is in a special encoding: tabs and wide characters that use more	1706	C<$text> is in a special encoding: tabs and wide characters that use more
940	than one cell when displayed are padded with urxvt::NOCHAR characters	1707	than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
941	(C<chr 65535>). Characters with combining characters and other characters	1708	characters. Characters with combining characters and other characters that
942	that do not fit into the normal tetx encoding will be replaced with	1709	do not fit into the normal text encoding will be replaced with characters
943	characters in the private use area.	1710	in the private use area.
944		1711
945	You have to obey this encoding when changing text. The advantage is	1712	You have to obey this encoding when changing text. The advantage is
946	that C<substr> and similar functions work on screen cells and not on	1713	that C<substr> and similar functions work on screen cells and not on
947	characters.	1714	characters.
948		1715
…		…
999	Return the row number of the first/last row of the line, respectively.	1766	Return the row number of the first/last row of the line, respectively.
1000		1767
1001	=item $offset = $line->offset_of ($row, $col)	1768	=item $offset = $line->offset_of ($row, $col)
1002		1769
1003	Returns the character offset of the given row|col pair within the logical	1770	Returns the character offset of the given row|col pair within the logical
1004	line.	1771	line. Works for rows outside the line, too, and returns corresponding
		1772	offsets outside the string.
1005		1773
1006	=item ($row, $col) = $line->coord_of ($offset)	1774	=item ($row, $col) = $line->coord_of ($offset)
1007		1775
1008	Translates a string offset into terminal coordinates again.	1776	Translates a string offset into terminal coordinates again.
1009		1777
…		…
1083	$offset / $self->{ncol} + $self->{beg},	1851	$offset / $self->{ncol} + $self->{beg},
1084	$offset % $self->{ncol}	1852	$offset % $self->{ncol}
1085	)	1853	)
1086	}	1854	}
1087		1855
1088	=item ($row, $col) = $line->coord_of ($offset)
1089	=item $text = $term->special_encode $string	1856	=item $text = $term->special_encode $string
1090		1857
1091	Converts a perl string into the special encoding used by rxvt-unicode,	1858	Converts a perl string into the special encoding used by rxvt-unicode,
1092	where one character corresponds to one screen cell. See	1859	where one character corresponds to one screen cell. See
1093	C<< $term->ROW_t >> for details.	1860	C<< $term->ROW_t >> for details.
1094		1861
1095	=item $string = $term->special_decode $text	1862	=item $string = $term->special_decode $text
1096		1863
1097	Converts rxvt-unicodes text reprsentation into a perl string. See	1864	Converts rxvt-unicodes text representation into a perl string. See
1098	C<< $term->ROW_t >> for details.	1865	C<< $term->ROW_t >> for details.
		1866
		1867	=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
		1868
		1869	=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
		1870
		1871	Register/unregister a synchronous button grab. See the XGrabButton
		1872	manpage.
		1873
		1874	=item $success = $term->grab ($eventtime[, $sync])
		1875
		1876	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
		1877	synchronous (C<$sync> is true). Also remembers the grab timestamp.
		1878
		1879	=item $term->allow_events_async
		1880
		1881	Calls XAllowEvents with AsyncBoth for the most recent grab.
		1882
		1883	=item $term->allow_events_sync
		1884
		1885	Calls XAllowEvents with SyncBoth for the most recent grab.
		1886
		1887	=item $term->allow_events_replay
		1888
		1889	Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
		1890	recent grab.
		1891
		1892	=item $term->ungrab
		1893
		1894	Calls XUngrabPointer and XUngrabKeyboard for the most recent grab. Is called automatically on
		1895	evaluation errors, as it is better to lose the grab in the error case as
		1896	the session.
		1897
		1898	=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
		1899
		1900	=item $atom_name = $term->XGetAtomName ($atom)
		1901
		1902	=item @atoms = $term->XListProperties ($window)
		1903
		1904	=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
		1905
		1906	=item $term->XChangeProperty ($window, $property, $type, $format, $octets)
		1907
		1908	=item $term->XDeleteProperty ($window, $property)
		1909
		1910	=item $window = $term->DefaultRootWindow
		1911
		1912	=item $term->XReparentWindow ($window, $parent, [$x, $y])
		1913
		1914	=item $term->XMapWindow ($window)
		1915
		1916	=item $term->XUnmapWindow ($window)
		1917
		1918	=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
		1919
		1920	=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
		1921
		1922	=item $term->XChangeInput ($window, $add_events[, $del_events])
		1923
		1924	Various X or X-related functions. The C<$term> object only serves as
		1925	the source of the display, otherwise those functions map more-or-less
		1926	directly onto the X functions of the same name.
1099		1927
1100	=back	1928	=back
1101		1929
1102	=cut	1930	=cut
1103		1931
…		…
1119	$item->{render} ||= sub { $_[0]{text} };	1947	$item->{render} ||= sub { $_[0]{text} };
1120		1948
1121	push @{ $self->{item} }, $item;	1949	push @{ $self->{item} }, $item;
1122	}	1950	}
1123		1951
1124	sub add_separator {	1952	=item $popup->add_title ($title)
1125	my ($self, $sep) = @_;
1126		1953
1127	$sep ||= "═";	1954	Adds a non-clickable title to the popup.
1128		1955
1129	$self->add_item ({	1956	=cut
1130	rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
1131	text => "",
1132	render => sub { $sep x $urxvt::TERM->ncol },
1133	activate => sub { },
1134	});
1135	}
1136		1957
1137	sub add_title {	1958	sub add_title {
1138	my ($self, $title) = @_;	1959	my ($self, $title) = @_;
1139		1960
1140	$self->add_item ({	1961	$self->add_item ({
…		…
1142	text => $title,	1963	text => $title,
1143	activate => sub { },	1964	activate => sub { },
1144	});	1965	});
1145	}	1966	}
1146		1967
		1968	=item $popup->add_separator ([$sepchr])
		1969
		1970	Creates a separator, optionally using the character given as C<$sepchr>.
		1971
		1972	=cut
		1973
		1974	sub add_separator {
		1975	my ($self, $sep) = @_;
		1976
		1977	$sep ||= "=";
		1978
		1979	$self->add_item ({
		1980	rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
		1981	text => "",
		1982	render => sub { $sep x $self->{term}->ncol },
		1983	activate => sub { },
		1984	});
		1985	}
		1986
		1987	=item $popup->add_button ($text, $cb)
		1988
		1989	Adds a clickable button to the popup. C<$cb> is called whenever it is
		1990	selected.
		1991
		1992	=cut
		1993
1147	sub add_button {	1994	sub add_button {
1148	my ($self, $text, $cb) = @_;	1995	my ($self, $text, $cb) = @_;
1149		1996
1150	$self->add_item ({ type => "button", text => "[ $text ]", activate => $cb});	1997	$self->add_item ({ type => "button", text => $text, activate => $cb});
1151	}	1998	}
		1999
		2000	=item $popup->add_toggle ($text, $initial_value, $cb)
		2001
		2002	Adds a toggle/checkbox item to the popup. The callback gets called
		2003	whenever it gets toggled, with a boolean indicating its new value as its
		2004	first argument.
		2005
		2006	=cut
1152		2007
1153	sub add_toggle {	2008	sub add_toggle {
1154	my ($self, $text, $cb, $value) = @_;	2009	my ($self, $text, $value, $cb) = @_;
1155		2010
1156	my $item; $item = {	2011	my $item; $item = {
1157	type => "button",	2012	type => "button",
1158	text => " $text",	2013	text => " $text",
1159	value => $value,	2014	value => $value,
1160	render => sub { ($item->{value} ? "* " : " ") . $text },	2015	render => sub { ($_[0]{value} ? "* " : " ") . $text },
1161	activate => sub { $cb->($item->{value} = !$item->{value}); },	2016	activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
1162	};	2017	};
1163		2018
1164	$self->add_item ($item);	2019	$self->add_item ($item);
1165	}	2020	}
		2021
		2022	=item $popup->show
		2023
		2024	Displays the popup (which is initially hidden).
		2025
		2026	=cut
1166		2027
1167	sub show {	2028	sub show {
1168	my ($self) = @_;	2029	my ($self) = @_;
1169		2030
1170	local $urxvt::popup::self = $self;	2031	local $urxvt::popup::self = $self;
1171		2032
1172	urxvt->new ("--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0,	2033	my $env = $self->{term}->env;
		2034	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
		2035	delete $env->{LC_ALL};
		2036	$env->{LC_CTYPE} = $self->{term}->locale;
		2037
		2038	my $term = urxvt::term->new (
		2039	$env, "popup",
		2040	"--perl-lib" => "", "--perl-ext-common" => "",
		2041	"-pty-fd" => -1, "-sl" => 0,
		2042	"-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1173	"--transient-for" => $self->{term}->parent,	2043	"--transient-for" => $self->{term}->parent,
		2044	"-display" => $self->{term}->display_id,
1174	"-pe" => "urxvt-popup")	2045	"-pe" => "urxvt-popup",
1175	or die "unable to create popup window\n";	2046	) or die "unable to create popup window\n";
		2047
		2048	unless (delete $term->{urxvt_popup_init_done}) {
		2049	$term->ungrab;
		2050	$term->destroy;
		2051	die "unable to initialise popup window\n";
		2052	}
1176	}	2053	}
1177		2054
1178	sub DESTROY {	2055	sub DESTROY {
1179	my ($self) = @_;	2056	my ($self) = @_;
1180		2057
		2058	delete $self->{term}{_destroy}{$self};
1181	$self->{term}->ungrab;	2059	$self->{term}->ungrab;
1182	}	2060	}
		2061
		2062	=back
		2063
		2064	=cut
		2065
		2066	package urxvt::watcher;
1183		2067
1184	=head2 The C<urxvt::timer> Class	2068	=head2 The C<urxvt::timer> Class
1185		2069
1186	This class implements timer watchers/events. Time is represented as a	2070	This class implements timer watchers/events. Time is represented as a
1187	fractional number of seconds since the epoch. Example:	2071	fractional number of seconds since the epoch. Example:
…		…
1191	->new	2075	->new
1192	->interval (1)	2076	->interval (1)
1193	->cb (sub {	2077	->cb (sub {
1194	$term->{overlay}->set (0, 0,	2078	$term->{overlay}->set (0, 0,
1195	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);	2079	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
1196	});	2080	});
1197		2081
1198	=over 4	2082	=over 4
1199		2083
1200	=item $timer = new urxvt::timer	2084	=item $timer = new urxvt::timer
1201		2085
…		…
1204		2088
1205	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })	2089	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })
1206		2090
1207	Set the callback to be called when the timer triggers.	2091	Set the callback to be called when the timer triggers.
1208		2092
1209	=item $tstamp = $timer->at
1210
1211	Return the time this watcher will fire next.
1212
1213	=item $timer = $timer->set ($tstamp)	2093	=item $timer = $timer->set ($tstamp[, $interval])
1214		2094
1215	Set the time the event is generated to $tstamp.	2095	Set the time the event is generated to $tstamp (and optionally specifies a
		2096	new $interval).
1216		2097
1217	=item $timer = $timer->interval ($interval)	2098	=item $timer = $timer->interval ($interval)
1218		2099
1219	Normally (and when C<$interval> is C<0>), the timer will automatically	2100	By default (and when C<$interval> is C<0>), the timer will automatically
1220	stop after it has fired once. If C<$interval> is non-zero, then the timer	2101	stop after it has fired once. If C<$interval> is non-zero, then the timer
1221	is automatically rescheduled at the given intervals.	2102	is automatically rescheduled at the given intervals.
1222		2103
1223	=item $timer = $timer->start	2104	=item $timer = $timer->start
1224		2105
1225	Start the timer.	2106	Start the timer.
1226		2107
1227	=item $timer = $timer->start ($tstamp)	2108	=item $timer = $timer->start ($tstamp[, $interval])
1228		2109
1229	Set the event trigger time to C<$tstamp> and start the timer.	2110	Set the event trigger time to C<$tstamp> and start the timer. Optionally
		2111	also replaces the interval.
		2112
		2113	=item $timer = $timer->after ($delay[, $interval])
		2114
		2115	Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1230		2116
1231	=item $timer = $timer->stop	2117	=item $timer = $timer->stop
1232		2118
1233	Stop the timer.	2119	Stop the timer.
1234		2120
…		…
1240		2126
1241	$term->{socket} = ...	2127	$term->{socket} = ...
1242	$term->{iow} = urxvt::iow	2128	$term->{iow} = urxvt::iow
1243	->new	2129	->new
1244	->fd (fileno $term->{socket})	2130	->fd (fileno $term->{socket})
1245	->events (1) # wait for read data	2131	->events (urxvt::EV_READ)
1246	->start	2132	->start
1247	->cb (sub {	2133	->cb (sub {
1248	my ($iow, $revents) = @_;	2134	my ($iow, $revents) = @_;
1249	# $revents must be 1 here, no need to check	2135	# $revents must be 1 here, no need to check
1250	sysread $term->{socket}, my $buf, 8192	2136	sysread $term->{socket}, my $buf, 8192
…		…
1263	Set the callback to be called when io events are triggered. C<$reventmask>	2149	Set the callback to be called when io events are triggered. C<$reventmask>
1264	is a bitset as described in the C<events> method.	2150	is a bitset as described in the C<events> method.
1265		2151
1266	=item $iow = $iow->fd ($fd)	2152	=item $iow = $iow->fd ($fd)
1267		2153
1268	Set the filedescriptor (not handle) to watch.	2154	Set the file descriptor (not handle) to watch.
1269		2155
1270	=item $iow = $iow->events ($eventmask)	2156	=item $iow = $iow->events ($eventmask)
1271		2157
1272	Set the event mask to watch. Bit #0 (value C<1>) enables watching for read	2158	Set the event mask to watch. The only allowed values are
1273	data, Bit #1 (value C<2>) enables watching for write data.	2159	C<urxvt::EV_READ> and C<urxvt::EV_WRITE>, which might be ORed
		2160	together, or C<urxvt::EV_NONE>.
1274		2161
1275	=item $iow = $iow->start	2162	=item $iow = $iow->start
1276		2163
1277	Start watching for requested events on the given handle.	2164	Start watching for requested events on the given handle.
1278		2165
1279	=item $iow = $iow->stop	2166	=item $iow = $iow->stop
1280		2167
1281	Stop watching for events on the given filehandle.	2168	Stop watching for events on the given file handle.
		2169
		2170	=back
		2171
		2172	=head2 The C<urxvt::iw> Class
		2173
		2174	This class implements idle watchers, that get called automatically when
		2175	the process is idle. They should return as fast as possible, after doing
		2176	some useful work.
		2177
		2178	=over 4
		2179
		2180	=item $iw = new urxvt::iw
		2181
		2182	Create a new idle watcher object in stopped state.
		2183
		2184	=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
		2185
		2186	Set the callback to be called when the watcher triggers.
		2187
		2188	=item $timer = $timer->start
		2189
		2190	Start the watcher.
		2191
		2192	=item $timer = $timer->stop
		2193
		2194	Stop the watcher.
		2195
		2196	=back
		2197
		2198	=head2 The C<urxvt::pw> Class
		2199
		2200	This class implements process watchers. They create an event whenever a
		2201	process exits, after which they stop automatically.
		2202
		2203	my $pid = fork;
		2204	...
		2205	$term->{pw} = urxvt::pw
		2206	->new
		2207	->start ($pid)
		2208	->cb (sub {
		2209	my ($pw, $exit_status) = @_;
		2210	...
		2211	});
		2212
		2213	=over 4
		2214
		2215	=item $pw = new urxvt::pw
		2216
		2217	Create a new process watcher in stopped state.
		2218
		2219	=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
		2220
		2221	Set the callback to be called when the timer triggers.
		2222
		2223	=item $pw = $timer->start ($pid)
		2224
		2225	Tells the watcher to start watching for process C<$pid>.
		2226
		2227	=item $pw = $pw->stop
		2228
		2229	Stop the watcher.
1282		2230
1283	=back	2231	=back
1284		2232
1285	=head1 ENVIRONMENT	2233	=head1 ENVIRONMENT
1286		2234
…		…
1289	This variable controls the verbosity level of the perl extension. Higher	2237	This variable controls the verbosity level of the perl extension. Higher
1290	numbers indicate more verbose output.	2238	numbers indicate more verbose output.
1291		2239
1292	=over 4	2240	=over 4
1293		2241
1294	=item =0 - only fatal messages	2242	=item == 0 - fatal messages
1295		2243
1296	=item =3 - script loading and management	2244	=item >= 3 - script loading and management
1297		2245
1298	=item =10 - all events received	2246	=item >=10 - all called hooks
		2247
		2248	=item >=11 - hook return values
1299		2249
1300	=back	2250	=back
1301		2251
1302	=head1 AUTHOR	2252	=head1 AUTHOR
1303		2253
…		…
1305	http://software.schmorp.de/pkg/rxvt-unicode	2255	http://software.schmorp.de/pkg/rxvt-unicode
1306		2256
1307	=cut	2257	=cut
1308		2258
1309	1	2259	1
		2260
		2261	# vim: sw=3:

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