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Revision 1.59 by root, Mon Jan 9 00:34:36 2006 UTC vs.
Revision 1.182 by sf-exg, Wed Feb 17 08:27:56 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
…		…
61	=item option-popup (enabled by default)	97	=item option-popup (enabled by default)
62		98
63	Binds a popup menu to Ctrl-Button2 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
		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.
		105
		106	Its sole argument is the popup menu, which can be modified. It should
		107	either return nothing or a string, the initial boolean value and a code
		108	reference. The string will be used as button text and the code reference
		109	will be called when the toggle changes, with the new boolean value as
		110	first argument.
		111
		112	The following will add an entry C<myoption> that changes
		113	C<< $self->{myoption} >>:
		114
		115	push @{ $self->{term}{option_popup_hook} }, sub {
		116	("my option" => $myoption, sub { $self->{myoption} = $_[0] })
		117	};
		118
66	=item selection-popup (enabled by default)	119	=item selection-popup (enabled by default)
67		120
68	Binds a popup menu to Ctrl-Button3 that lets you convert the selection	121	Binds a popup menu to Ctrl-Button3 that lets you convert the selection
69	text into various other formats/action.	122	text into various other formats/action (such as uri unescaping, perl
		123	evaluation, web-browser starting etc.), depending on content.
70		124
71	=item digital-clock	125	Other extensions can extend this popup menu by pushing a code reference
		126	onto C<@{ $term->{selection_popup_hook} }>, which gets called whenever the
		127	popup is being displayed.
72		128
73	Displays a digital clock using the built-in overlay.	129	Its sole argument is the popup menu, which can be modified. The selection
		130	is in C<$_>, 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<$_>.
74		134
75	=item mark-urls	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:
76		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
77	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.
78		313
79	=item block-graphics-to-ascii	314	=item block-graphics-to-ascii
80		315
81	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
82	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
83	similar-looking ascii character.	318	similar-looking ascii character.
		319
		320	=item digital-clock
		321
		322	Displays a digital clock using the built-in overlay.
		323
		324	=item remote-clipboard
		325
		326	Somewhat of a misnomer, this extension adds two menu entries to the
		327	selection popup that allows one to run external commands to store the
		328	selection somewhere and fetch it again.
		329
		330	We use it to implement a "distributed selection mechanism", which just
		331	means that one command uploads the file to a remote server, and another
		332	reads it.
		333
		334	The commands can be set using the C<URxvt.remote-selection.store> and
		335	C<URxvt.remote-selection.fetch> resources. The first should read the
		336	selection to store from STDIN (always in UTF-8), the second should provide
		337	the selection data on STDOUT (also in UTF-8).
		338
		339	The defaults (which are likely useless to you) use rsh and cat:
		340
		341	URxvt.remote-selection.store: rsh ruth 'cat >/tmp/distributed-selection'
		342	URxvt.remote-selection.fetch: rsh ruth 'cat /tmp/distributed-selection'
		343
		344	=item selection-pastebin
		345
		346	This is a little rarely useful extension that uploads the selection as
		347	textfile to a remote site (or does other things). (The implementation is
		348	not currently secure for use in a multiuser environment as it writes to
		349	F</tmp> directly.).
		350
		351	It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
		352	i.e.
		353
		354	URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
		355
		356	Pressing this combination runs a command with C<%> replaced by the name of
		357	the textfile. This command can be set via a resource:
		358
		359	URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
		360
		361	And the default is likely not useful to anybody but the few people around
		362	here :)
		363
		364	The name of the textfile is the hex encoded md5 sum of the selection, so
		365	the same content should lead to the same filename.
		366
		367	After a successful upload the selection will be replaced by the text given
		368	in the C<selection-pastebin-url> resource (again, the % is the placeholder
		369	for the filename):
		370
		371	URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
		372
		373	I<Note to xrdb users:> xrdb uses the C preprocessor, which might interpret
		374	the double C</> characters as comment start. Use C<\057\057> instead,
		375	which works regardless of wether xrdb is used to parse the resource file
		376	or not.
		377
		378	=item macosx-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.
84		391
85	=item example-refresh-hooks	392	=item example-refresh-hooks
86		393
87	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
88	window. Illustrates overwriting the refresh callbacks to create your own	395	window. Illustrates overwriting the refresh callbacks to create your own
89	overlays or changes.	396	overlays or changes.
90		397
91	=back	398	=back
		399
		400	=head1 API DOCUMENTATION
92		401
93	=head2 General API Considerations	402	=head2 General API Considerations
94		403
95	All objects (such as terminals, time watchers etc.) are typical	404	All objects (such as terminals, time watchers etc.) are typical
96	reference-to-hash objects. The hash can be used to store anything you	405	reference-to-hash objects. The hash can be used to store anything you
…		…
108		417
109	=over 4	418	=over 4
110		419
111	=item $text	420	=item $text
112		421
113	Rxvt-unicodes special way of encoding text, where one "unicode" character	422	Rxvt-unicode's special way of encoding text, where one "unicode" character
114	always represents one screen cell. See L<row_t> for a discussion of this format.	423	always represents one screen cell. See L<ROW_t> for a discussion of this format.
115		424
116	=item $string	425	=item $string
117		426
118	A perl text string, with an emphasis on I<text>. It can store all unicode	427	A perl text string, with an emphasis on I<text>. It can store all unicode
119	characters and is to be distinguished with text encoded in a specific	428	characters and is to be distinguished with text encoded in a specific
…		…
124	Either binary data or - more common - a text string encoded in a	433	Either binary data or - more common - a text string encoded in a
125	locale-specific way.	434	locale-specific way.
126		435
127	=back	436	=back
128		437
		438	=head2 Extension Objects
		439
		440	Every perl extension is a perl class. A separate perl object is created
		441	for each terminal, and each terminal has its own set of extenion objects,
		442	which are passed as the first parameter to hooks. So extensions can use
		443	their C<$self> object without having to think about clashes with other
		444	extensions or other terminals, with the exception of methods and members
		445	that begin with an underscore character C<_>: these are reserved for
		446	internal use.
		447
		448	Although it isn't a C<urxvt::term> object, you can call all methods of the
		449	C<urxvt::term> class on this object.
		450
		451	It has the following methods and data members:
		452
		453	=over 4
		454
		455	=item $urxvt_term = $self->{term}
		456
		457	Returns the C<urxvt::term> object associated with this instance of the
		458	extension. This member I<must not> be changed in any way.
		459
		460	=item $self->enable ($hook_name => $cb, [$hook_name => $cb..])
		461
		462	Dynamically enable the given hooks (named without the C<on_> prefix) for
		463	this extension, replacing any previous hook. This is useful when you want
		464	to overwrite time-critical hooks only temporarily.
		465
		466	=item $self->disable ($hook_name[, $hook_name..])
		467
		468	Dynamically disable the given hooks.
		469
		470	=back
		471
129	=head2 Hooks	472	=head2 Hooks
130		473
131	The following subroutines can be declared in extension files, and will be	474	The following subroutines can be declared in extension files, and will be
132	called whenever the relevant event happens.	475	called whenever the relevant event happens.
133		476
134	The first argument passed to them is an object private to each terminal	477	The first argument passed to them is an extension object as described in
135	and extension package. You can call all C<urxvt::term> methods on it, but	478	the in the C<Extension Objects> section.
136	its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
137	object that is shared between all packages is stored in the C<term>
138	member. It is, however, blessed intot he package of the extension script,
139	so for all practical purposes you can treat an extension script as a class.
140		479
141	All of them must return a boolean value. If it is true, then the event	480	B<All> of these hooks must return a boolean value. If any of the called
142	counts as being I<consumed>, and the invocation of other hooks is skipped,	481	hooks returns true, then the event counts as being I<consumed>, and the
143	and the relevant action might not be carried out by the C++ code.	482	relevant action might not be carried out by the C++ code.
144		483
145	When in doubt, return a false value (preferably C<()>).	484	I<< When in doubt, return a false value (preferably C<()>). >>
146		485
147	=over 4	486	=over 4
148		487
149	=item on_init $term	488	=item on_init $term
150		489
151	Called after a new terminal object has been initialized, but before	490	Called after a new terminal object has been initialized, but before
152	windows are created or the command gets run. Most methods are unsafe to	491	windows are created or the command gets run. Most methods are unsafe to
153	call or deliver senseless data, as terminal size and other characteristics	492	call or deliver senseless data, as terminal size and other characteristics
154	have not yet been determined. You can safely query and change resources,	493	have not yet been determined. You can safely query and change resources
155	though.	494	and options, though. For many purposes the C<on_start> hook is a better
		495	place.
		496
		497	=item on_start $term
		498
		499	Called at the very end of initialisation of a new terminal, just before
		500	trying to map (display) the toplevel and returning to the main loop.
		501
		502	=item on_destroy $term
		503
		504	Called whenever something tries to destroy terminal, when the terminal is
		505	still fully functional (not for long, though).
156		506
157	=item on_reset $term	507	=item on_reset $term
158		508
159	Called after the screen is "reset" for any reason, such as resizing or	509	Called after the screen is "reset" for any reason, such as resizing or
160	control sequences. Here is where you can react on changes to size-related	510	control sequences. Here is where you can react on changes to size-related
161	variables.	511	variables.
162		512
163	=item on_start $term	513	=item on_child_start $term, $pid
164		514
165	Called at the very end of initialisation of a new terminal, just before	515	Called just after the child process has been C<fork>ed.
166	returning to the mainloop.	516
		517	=item on_child_exit $term, $status
		518
		519	Called just after the child process has exited. C<$status> is the status
		520	from C<waitpid>.
167		521
168	=item on_sel_make $term, $eventtime	522	=item on_sel_make $term, $eventtime
169		523
170	Called whenever a selection has been made by the user, but before the	524	Called whenever a selection has been made by the user, but before the
171	selection text is copied, so changes to the beginning, end or type of the	525	selection text is copied, so changes to the beginning, end or type of the
…		…
178		532
179	Called whenever a selection has been copied, but before the selection is	533	Called whenever a selection has been copied, but before the selection is
180	requested from the server. The selection text can be queried and changed	534	requested from the server. The selection text can be queried and changed
181	by calling C<< $term->selection >>.	535	by calling C<< $term->selection >>.
182		536
183	Returning a true value aborts selection grabbing. It will still be hilighted.	537	Returning a true value aborts selection grabbing. It will still be highlighted.
184		538
185	=item on_sel_extend $term	539	=item on_sel_extend $term
186		540
187	Called whenever the user tries to extend the selection (e.g. with a double	541	Called whenever the user tries to extend the selection (e.g. with a double
188	click) and is either supposed to return false (normal operation), or	542	click) and is either supposed to return false (normal operation), or
189	should extend the selection itelf and return true to suppress the built-in	543	should extend the selection itself and return true to suppress the built-in
190	processing.	544	processing. This can happen multiple times, as long as the callback
		545	returns true, it will be called on every further click by the user and is
		546	supposed to enlarge the selection more and more, if possible.
191		547
192	See the F<selection> example extension.	548	See the F<selection> example extension.
193		549
194	=item on_view_change $term, $offset	550	=item on_view_change $term, $offset
195		551
196	Called whenever the view offset changes, i..e the user or program	552	Called whenever the view offset changes, i.e. the user or program
197	scrolls. Offset C<0> means display the normal terminal, positive values	553	scrolls. Offset C<0> means display the normal terminal, positive values
198	show this many lines of scrollback.	554	show this many lines of scrollback.
199		555
200	=item on_scroll_back $term, $lines, $saved	556	=item on_scroll_back $term, $lines, $saved
201		557
…		…
205		561
206	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,	562	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
207	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total	563	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
208	number of lines that will be in the scrollback buffer.	564	number of lines that will be in the scrollback buffer.
209		565
210	=item on_tty_activity $term *NYI*
211
212	Called whenever the program(s) running in the urxvt window send output.
213
214	=item on_osc_seq $term, $string	566	=item on_osc_seq $term, $op, $args, $resp
		567
		568	Called on every OSC sequence and can be used to suppress it or modify its
		569	behaviour. The default should be to return an empty list. A true value
		570	suppresses execution of the request completely. Make sure you don't get
		571	confused by recursive invocations when you output an OSC sequence within
		572	this callback.
		573
		574	C<on_osc_seq_perl> should be used for new behaviour.
		575
		576	=item on_osc_seq_perl $term, $args, $resp
215		577
216	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =	578	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
217	operating system command) is processed. Cursor position and other state	579	operating system command) is processed. Cursor position and other state
218	information is up-to-date when this happens. For interoperability, the	580	information is up-to-date when this happens. For interoperability, the
219	string should start with the extension name and a colon, to distinguish	581	string should start with the extension name (sans -osc) and a semicolon,
220	it from commands for other extensions, and this might be enforced in the	582	to distinguish it from commands for other extensions, and this might be
221	future.	583	enforced in the future.
		584
		585	For example, C<overlay-osc> uses this:
		586
		587	sub on_osc_seq_perl {
		588	my ($self, $osc, $resp) = @_;
		589
		590	return unless $osc =~ s/^overlay;//;
		591
		592	... process remaining $osc string
		593	}
222		594
223	Be careful not ever to trust (in a security sense) the data you receive,	595	Be careful not ever to trust (in a security sense) the data you receive,
224	as its source can not easily be controleld (e-mail content, messages from	596	as its source can not easily be controlled (e-mail content, messages from
225	other users on the same system etc.).	597	other users on the same system etc.).
		598
		599	For responses, C<$resp> contains the end-of-args separator used by the
		600	sender.
226		601
227	=item on_add_lines $term, $string	602	=item on_add_lines $term, $string
228		603
229	Called whenever text is about to be output, with the text as argument. You	604	Called whenever text is about to be output, with the text as argument. You
230	can filter/change and output the text yourself by returning a true value	605	can filter/change and output the text yourself by returning a true value
231	and calling C<< $term->scr_add_lines >> yourself. Please note that this	606	and calling C<< $term->scr_add_lines >> yourself. Please note that this
232	might be very slow, however, as your hook is called for B<all> text being	607	might be very slow, however, as your hook is called for B<all> text being
233	output.	608	output.
234		609
		610	=item on_tt_write $term, $octets
		611
		612	Called whenever some data is written to the tty/pty and can be used to
		613	suppress or filter tty input.
		614
235	=item on_line_update $term, $row	615	=item on_line_update $term, $row
236		616
237	Called whenever a line was updated or changed. Can be used to filter	617	Called whenever a line was updated or changed. Can be used to filter
238	screen output (e.g. underline urls or other useless stuff). Only lines	618	screen output (e.g. underline urls or other useless stuff). Only lines
239	that are being shown will be filtered, and, due to performance reasons,	619	that are being shown will be filtered, and, due to performance reasons,
…		…
246	later with the already-modified line (e.g. if unrelated parts change), so	626	later with the already-modified line (e.g. if unrelated parts change), so
247	you cannot just toggle rendition bits, but only set them.	627	you cannot just toggle rendition bits, but only set them.
248		628
249	=item on_refresh_begin $term	629	=item on_refresh_begin $term
250		630
251	Called just before the screen gets redrawn. Can be used for overlay	631	Called just before the screen gets redrawn. Can be used for overlay or
252	or similar effects by modify terminal contents in refresh_begin, and	632	similar effects by modifying the terminal contents in refresh_begin, and
253	restoring them in refresh_end. The built-in overlay and selection display	633	restoring them in refresh_end. The built-in overlay and selection display
254	code is run after this hook, and takes precedence.	634	code is run after this hook, and takes precedence.
255		635
256	=item on_refresh_end $term	636	=item on_refresh_end $term
257		637
258	Called just after the screen gets redrawn. See C<on_refresh_begin>.	638	Called just after the screen gets redrawn. See C<on_refresh_begin>.
259		639
260	=item on_keyboard_command $term, $string	640	=item on_user_command $term, $string
261		641
262	Called whenever the user presses a key combination that has a	642	Called whenever a user-configured event is being activated (e.g. via
263	C<perl:string> action bound to it (see description of the B<keysym>	643	a C<perl:string> action bound to a key, see description of the B<keysym>
264	resource in the @@RXVT_NAME@@(1) manpage).	644	resource in the @@RXVT_NAME@@(1) manpage).
		645
		646	The event is simply the action string. This interface is assumed to change
		647	slightly in the future.
		648
		649	=item on_resize_all_windows $tern, $new_width, $new_height
		650
		651	Called just after the new window size has been calculated, but before
		652	windows are actually being resized or hints are being set. If this hook
		653	returns TRUE, setting of the window hints is being skipped.
		654
		655	=item on_x_event $term, $event
		656
		657	Called on every X event received on the vt window (and possibly other
		658	windows). Should only be used as a last resort. Most event structure
		659	members are not passed.
		660
		661	=item on_root_event $term, $event
		662
		663	Like C<on_x_event>, but is called for events on the root window.
265		664
266	=item on_focus_in $term	665	=item on_focus_in $term
267		666
268	Called whenever the window gets the keyboard focus, before rxvt-unicode	667	Called whenever the window gets the keyboard focus, before rxvt-unicode
269	does focus in processing.	668	does focus in processing.
270		669
271	=item on_focus_out $term	670	=item on_focus_out $term
272		671
273	Called wheneever the window loses keyboard focus, before rxvt-unicode does	672	Called whenever the window loses keyboard focus, before rxvt-unicode does
274	focus out processing.	673	focus out processing.
275		674
		675	=item on_configure_notify $term, $event
		676
		677	=item on_property_notify $term, $event
		678
276	=item on_key_press $term, $event, $octets	679	=item on_key_press $term, $event, $keysym, $octets
277		680
278	=item on_key_release $term, $event	681	=item on_key_release $term, $event, $keysym
279		682
280	=item on_button_press $term, $event	683	=item on_button_press $term, $event
281		684
282	=item on_button_release $term, $event	685	=item on_button_release $term, $event
283		686
…		…
285		688
286	=item on_map_notify $term, $event	689	=item on_map_notify $term, $event
287		690
288	=item on_unmap_notify $term, $event	691	=item on_unmap_notify $term, $event
289		692
290	Called whenever the corresponding X event is received for the terminal If	693	Called whenever the corresponding X event is received for the terminal. If
291	the hook returns true, then the even will be ignored by rxvt-unicode.	694	the hook returns true, then the event will be ignored by rxvt-unicode.
292		695
293	The event is a hash with most values as named by Xlib (see the XEvent	696	The event is a hash with most values as named by Xlib (see the XEvent
294	manpage), with the additional members C<row> and C<col>, which are the row	697	manpage), with the additional members C<row> and C<col>, which are the
295	and column under the mouse cursor.	698	(real, not screen-based) row and column under the mouse cursor.
296		699
297	C<on_key_press> additionally receives the string rxvt-unicode would	700	C<on_key_press> additionally receives the string rxvt-unicode would
298	output, if any, in locale-specific encoding.	701	output, if any, in locale-specific encoding.
299		702
300	subwindow.	703	subwindow.
301		704
		705	=item on_client_message $term, $event
		706
		707	=item on_wm_protocols $term, $event
		708
		709	=item on_wm_delete_window $term, $event
		710
		711	Called when various types of ClientMessage events are received (all with
		712	format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
		713
		714	=item on_bell $term
		715
		716	Called on receipt of a bell character.
		717
302	=back	718	=back
303		719
		720	=cut
		721
		722	package urxvt;
		723
		724	use utf8;
		725	use strict;
		726	use Carp ();
		727	use Scalar::Util ();
		728	use List::Util ();
		729
		730	our $VERSION = 1;
		731	our $TERM;
		732	our @TERM_INIT;
		733	our @TERM_EXT;
		734	our @HOOKNAME;
		735	our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
		736	our %OPTION;
		737
		738	our $LIBDIR;
		739	our $RESNAME;
		740	our $RESCLASS;
		741	our $RXVTNAME;
		742
		743	our $NOCHAR = chr 0xffff;
		744
304	=head2 Variables in the C<urxvt> Package	745	=head2 Variables in the C<urxvt> Package
305		746
306	=over 4	747	=over 4
		748
		749	=item $urxvt::LIBDIR
		750
		751	The rxvt-unicode library directory, where, among other things, the perl
		752	modules and scripts are stored.
		753
		754	=item $urxvt::RESCLASS, $urxvt::RESCLASS
		755
		756	The resource class and name rxvt-unicode uses to look up X resources.
		757
		758	=item $urxvt::RXVTNAME
		759
		760	The basename of the installed binaries, usually C<urxvt>.
307		761
308	=item $urxvt::TERM	762	=item $urxvt::TERM
309		763
310	The current terminal. This variable stores the current C<urxvt::term>	764	The current terminal. This variable stores the current C<urxvt::term>
311	object, whenever a callback/hook is executing.	765	object, whenever a callback/hook is executing.
312		766
		767	=item @urxvt::TERM_INIT
		768
		769	All code references in this array will be called as methods of the next newly
		770	created C<urxvt::term> object (during the C<on_init> phase). The array
		771	gets cleared before the code references that were in it are being executed,
		772	so references can push themselves onto it again if they so desire.
		773
		774	This complements to the perl-eval command line option, but gets executed
		775	first.
		776
		777	=item @urxvt::TERM_EXT
		778
		779	Works similar to C<@TERM_INIT>, but contains perl package/class names, which
		780	get registered as normal extensions after calling the hooks in C<@TERM_INIT>
		781	but before other extensions. Gets cleared just like C<@TERM_INIT>.
		782
313	=back	783	=back
314		784
315	=head2 Functions in the C<urxvt> Package	785	=head2 Functions in the C<urxvt> Package
316		786
317	=over 4	787	=over 4
318
319	=item $term = new urxvt [arg...]
320
321	Creates a new terminal, very similar as if you had started it with
322	C<system $binfile, arg...>. Croaks (and probably outputs an error message)
323	if the new instance couldn't be created. Returns C<undef> if the new
324	instance didn't initialise perl, and the terminal object otherwise. The
325	C<init> and C<start> hooks will be called during the call.
326		788
327	=item urxvt::fatal $errormessage	789	=item urxvt::fatal $errormessage
328		790
329	Fatally aborts execution with the given error message. Avoid at all	791	Fatally aborts execution with the given error message. Avoid at all
330	costs! The only time this is acceptable is when the terminal process	792	costs! The only time this is acceptable is when the terminal process
…		…
337	that calls this function.	799	that calls this function.
338		800
339	Using this function has the advantage that its output ends up in the	801	Using this function has the advantage that its output ends up in the
340	correct place, e.g. on stderr of the connecting urxvtc client.	802	correct place, e.g. on stderr of the connecting urxvtc client.
341		803
		804	Messages have a size limit of 1023 bytes currently.
		805
		806	=item @terms = urxvt::termlist
		807
		808	Returns all urxvt::term objects that exist in this process, regardless of
		809	whether they are started, being destroyed etc., so be careful. Only term
		810	objects that have perl extensions attached will be returned (because there
		811	is no urxvt::term objet associated with others).
		812
342	=item $time = urxvt::NOW	813	=item $time = urxvt::NOW
343		814
344	Returns the "current time" (as per the event loop).	815	Returns the "current time" (as per the event loop).
345		816
346	=item urxvt::CurrentTime	817	=item urxvt::CurrentTime
347		818
348	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,	819	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
349	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,	820	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
350	Button4Mask, Button5Mask, AnyModifier	821	Button4Mask, Button5Mask, AnyModifier
		822
		823	=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
		824	ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
		825	PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
		826	Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
		827	KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
		828	ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
		829	FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
		830
		831	=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
		832	EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
		833	GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
		834	UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
		835	ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
		836	CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
		837	SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
351		838
352	Various constants for use in X calls and event processing.	839	Various constants for use in X calls and event processing.
353		840
354	=back	841	=back
355		842
…		…
384		871
385	=item $background = urxvt::GET_BASEBG $rend	872	=item $background = urxvt::GET_BASEBG $rend
386		873
387	Return the foreground/background colour index, respectively.	874	Return the foreground/background colour index, respectively.
388		875
389	=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)	876	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
390		877
391	=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)	878	=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
		879
		880	=item $rend = urxvt::SET_COLOR $rend, $new_fg, $new_bg
392		881
393	Replace the foreground/background colour in the rendition mask with the	882	Replace the foreground/background colour in the rendition mask with the
394	specified one.	883	specified one.
395		884
396	=item $value = urxvt::GET_CUSTOM ($rend)	885	=item $value = urxvt::GET_CUSTOM $rend
397		886
398	Return the "custom" value: Every rendition has 5 bits for use by	887	Return the "custom" value: Every rendition has 5 bits for use by
399	extensions. They can be set and changed as you like and are initially	888	extensions. They can be set and changed as you like and are initially
400	zero.	889	zero.
401		890
402	=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)	891	=item $rend = urxvt::SET_CUSTOM $rend, $new_value
403		892
404	Change the custom value.	893	Change the custom value.
405		894
406	=back	895	=back
407		896
408	=cut	897	=cut
409		898
410	package urxvt;
411
412	use utf8;
413	use strict;
414	use Scalar::Util ();
415	use List::Util ();
416
417	our $VERSION = 1;
418	our $TERM;
419	our @HOOKNAME;
420	our %OPTION;
421	our $LIBDIR;
422
423	BEGIN {	899	BEGIN {
424	urxvt->bootstrap;
425
426	# overwrite perl's warn	900	# overwrite perl's warn
427	*CORE::GLOBAL::warn = sub {	901	*CORE::GLOBAL::warn = sub {
428	my $msg = join "", @_;	902	my $msg = join "", @_;
429	$msg .= "\n"	903	$msg .= "\n"
430	unless $msg =~ /\n$/;	904	unless $msg =~ /\n$/;
431	urxvt::warn ($msg);	905	urxvt::warn ($msg);
432	};	906	};
433
434	$ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
435	delete $ENV{CDPATH};
436	}	907	}
437		908
438	my @hook_count;	909	no warnings 'utf8';
		910
439	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};	911	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
440		912
441	sub verbose {	913	sub verbose {
442	my ($level, $msg) = @_;	914	my ($level, $msg) = @_;
443	warn "$msg\n" if $level <= $verbosity;	915	warn "$msg\n" if $level <= $verbosity;
444	}	916	}
445		917
446	# find on_xxx subs in the package and register them
447	# as hooks
448	sub register_package($) {
449	my ($pkg) = @_;
450
451	for my $htype (0.. $#HOOKNAME) {
452	my $name = $HOOKNAME[$htype];
453
454	my $ref = $pkg->can ("on_" . lc $name)
455	or next;
456
457	$TERM->{_hook}[$htype]{$pkg} = $ref;
458	$hook_count[$htype]++
459	or set_should_invoke $htype, 1;
460	}
461	}
462
463	my $extension_pkg = "extension0000";
464	my %extension_pkg;	918	my %extension_pkg;
465		919
466	# load a single script into its own package, once only	920	# load a single script into its own package, once only
467	sub extension_package($) {	921	sub extension_package($) {
468	my ($path) = @_;	922	my ($path) = @_;
469		923
470	$extension_pkg{$path} ||= do {	924	$extension_pkg{$path} ||= do {
471	my $pkg = "urxvt::" . ($extension_pkg++);	925	$path =~ /([^\/\\]+)$/;
		926	my $pkg = $1;
		927	$pkg =~ s/[^[:word:]]/_/g;
		928	$pkg = "urxvt::ext::$pkg";
472		929
473	verbose 3, "loading extension '$path' into package '$pkg'";	930	verbose 3, "loading extension '$path' into package '$pkg'";
474		931
475	open my $fh, "<:raw", $path	932	open my $fh, "<:raw", $path
476	or die "$path: $!";	933	or die "$path: $!";
477		934
478	my $source = untaint "package $pkg; use strict; use utf8;\n"	935	my $source =
479	. "use base urxvt::term::proxy::;\n"	936	"package $pkg; use strict; use utf8; no warnings 'utf8';\n"
480	. "#line 1 \"$path\"\n{\n"	937	. "#line 1 \"$path\"\n{\n"
481	. (do { local $/; <$fh> })	938	. (do { local $/; <$fh> })
482	. "\n};\n1";	939	. "\n};\n1";
483		940
		941	eval $source
484	eval $source or die "$path: $@";	942	or die "$path: $@";
485		943
486	$pkg	944	$pkg
487	}	945	}
488	}	946	}
489		947
…		…
494	local $TERM = shift;	952	local $TERM = shift;
495	my $htype = shift;	953	my $htype = shift;
496		954
497	if ($htype == 0) { # INIT	955	if ($htype == 0) { # INIT
498	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");	956	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
		957
		958	my %ext_arg;
		959
499		960	{
500	my %want_ext;	961	my @init = @TERM_INIT;
		962	@TERM_INIT = ();
		963	$_->($TERM) for @init;
		964	my @pkg = @TERM_EXT;
		965	@TERM_EXT = ();
		966	$TERM->register_package ($_) for @pkg;
		967	}
501		968
502	for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {	969	for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
503	if ($_ eq "default") {	970	if ($_ eq "default") {
504	$want_ext{$_}++ for qw(selection option-popup selection-popup);	971	$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
505	} elsif (/^-(.*)$/) {	972	} elsif (/^-(.*)$/) {
506	delete $want_ext{$1};	973	delete $ext_arg{$1};
		974	} elsif (/^([^<]+)<(.*)>$/) {
		975	push @{ $ext_arg{$1} }, $2;
507	} else {	976	} else {
508	$want_ext{$_}++;	977	$ext_arg{$_} ||= [];
509	}	978	}
510	}	979	}
511		980
512	for my $ext (keys %want_ext) {	981	for my $ext (sort keys %ext_arg) {
513	my @files = grep -f $_, map "$_/$ext", @dirs;	982	my @files = grep -f $_, map "$_/$ext", @dirs;
514		983
515	if (@files) {	984	if (@files) {
516	register_package extension_package $files[0];	985	$TERM->register_package (extension_package $files[0], $ext_arg{$ext});
517	} else {	986	} else {
518	warn "perl extension '$ext' not found in perl library search path\n";	987	warn "perl extension '$ext' not found in perl library search path\n";
519	}	988	}
520	}	989	}
521		990
…		…
527		996
528	if (my $cb = $TERM->{_hook}[$htype]) {	997	if (my $cb = $TERM->{_hook}[$htype]) {
529	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"	998	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
530	if $verbosity >= 10;	999	if $verbosity >= 10;
531		1000
532	keys %$cb;	1001	for my $pkg (keys %$cb) {
		1002	my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg}, @_) };
		1003	$retval ||= $retval_;
533		1004
534	while (my ($pkg, $cb) = each %$cb) {
535	eval {
536	$retval = $cb->(
537	$TERM->{_pkg}{$pkg} ||= do {
538	my $proxy = bless { }, $pkg;
539	Scalar::Util::weaken ($proxy->{term} = $TERM);
540	$proxy
541	},
542	@_,
543	) and last;
544	};
545	if ($@) {	1005	if ($@) {
546	$TERM->ungrab; # better to lose the grab than the session	1006	$TERM->ungrab; # better to lose the grab than the session
547	warn $@;	1007	warn $@;
548	}	1008	}
549	}	1009	}
		1010
		1011	verbose 11, "$HOOKNAME[$htype] returning <$retval>"
		1012	if $verbosity >= 11;
550	}	1013	}
551		1014
552	if ($htype == 1) { # DESTROY	1015	if ($htype == 1) { # DESTROY
553	# remove hooks if unused
554	if (my $hook = $TERM->{_hook}) {
555	for my $htype (0..$#$hook) {
556	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
557	or set_should_invoke $htype, 0;
558	}
559	}
560
561	# clear package objects	1016	# clear package objects
562	%$_ = () for values %{ $TERM->{_pkg} };	1017	%$_ = () for values %{ $TERM->{_pkg} };
563		1018
564	# clear package	1019	# clear package
565	%$TERM = ();	1020	%$TERM = ();
566	}	1021	}
567		1022
568	$retval	1023	$retval
569	}	1024	}
570		1025
571	# urxvt::term::proxy	1026	sub SET_COLOR($$$) {
		1027	SET_BGCOLOR (SET_FGCOLOR ($_[0], $_[1]), $_[2])
		1028	}
572		1029
573	sub urxvt::term::proxy::AUTOLOAD {	1030	sub rend2mask {
574	$urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/	1031	no strict 'refs';
		1032	my ($str, $mask) = (@_, 0);
		1033	my %color = ( fg => undef, bg => undef );
		1034	my @failed;
		1035	for my $spec ( split /\s+/, $str ) {
		1036	if ( $spec =~ /^([fb]g)[_:-]?(\d+)/i ) {
		1037	$color{lc($1)} = $2;
		1038	} else {
		1039	my $neg = $spec =~ s/^[-^]//;
		1040	unless ( exists &{"RS_$spec"} ) {
		1041	push @failed, $spec;
		1042	next;
		1043	}
		1044	my $cur = &{"RS_$spec"};
		1045	if ( $neg ) {
		1046	$mask &= ~$cur;
		1047	} else {
		1048	$mask |= $cur;
		1049	}
		1050	}
		1051	}
		1052	($mask, @color{qw(fg bg)}, \@failed)
		1053	}
		1054
		1055	# urxvt::term::extension
		1056
		1057	package urxvt::term::extension;
		1058
		1059	sub enable {
		1060	my ($self, %hook) = @_;
		1061	my $pkg = $self->{_pkg};
		1062
		1063	while (my ($name, $cb) = each %hook) {
		1064	my $htype = $HOOKTYPE{uc $name};
		1065	defined $htype
		1066	or Carp::croak "unsupported hook type '$name'";
		1067
		1068	$self->set_should_invoke ($htype, +1)
		1069	unless exists $self->{term}{_hook}[$htype]{$pkg};
		1070
		1071	$self->{term}{_hook}[$htype]{$pkg} = $cb;
		1072	}
		1073	}
		1074
		1075	sub disable {
		1076	my ($self, @hook) = @_;
		1077	my $pkg = $self->{_pkg};
		1078
		1079	for my $name (@hook) {
		1080	my $htype = $HOOKTYPE{uc $name};
		1081	defined $htype
		1082	or Carp::croak "unsupported hook type '$name'";
		1083
		1084	$self->set_should_invoke ($htype, -1)
		1085	if delete $self->{term}{_hook}[$htype]{$pkg};
		1086	}
		1087	}
		1088
		1089	our $AUTOLOAD;
		1090
		1091	sub AUTOLOAD {
		1092	$AUTOLOAD =~ /:([^:]+)$/
575	or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";	1093	or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
576		1094
577	eval qq{	1095	eval qq{
578	sub $urxvt::term::proxy::AUTOLOAD {	1096	sub $AUTOLOAD {
579	my \$proxy = shift;	1097	my \$proxy = shift;
580	\$proxy->{term}->$1 (\@_)	1098	\$proxy->{term}->$1 (\@_)
581	}	1099	}
582	1	1100	1
583	} or die "FATAL: unable to compile method forwarder: $@";	1101	} or die "FATAL: unable to compile method forwarder: $@";
584		1102
585	goto &$urxvt::term::proxy::AUTOLOAD;	1103	goto &$AUTOLOAD;
586	}	1104	}
587		1105
588	sub urxvt::term::proxy::DESTROY {	1106	sub DESTROY {
589	# nop	1107	# nop
590	}	1108	}
591		1109
592	# urxvt::destroy_hook	1110	# urxvt::destroy_hook
593		1111
…		…
603		1121
604	=head2 The C<urxvt::anyevent> Class	1122	=head2 The C<urxvt::anyevent> Class
605		1123
606	The sole purpose of this class is to deliver an interface to the	1124	The sole purpose of this class is to deliver an interface to the
607	C<AnyEvent> module - any module using it will work inside urxvt without	1125	C<AnyEvent> module - any module using it will work inside urxvt without
608	further work. The only exception is that you cannot wait on condition	1126	further programming. The only exception is that you cannot wait on
609	variables, but non-blocking condvar use is ok. What this means is that you	1127	condition variables, but non-blocking condvar use is ok. What this means
610	cannot use blocking APIs, but the non-blocking variant should work.	1128	is that you cannot use blocking APIs, but the non-blocking variant should
		1129	work.
611		1130
612	=cut	1131	=cut
613		1132
614	our $VERSION = 1;	1133	our $VERSION = '5.23';
615		1134
616	$INC{"urxvt/anyevent.pm"} = 1; # mark us as there	1135	$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
617	push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];	1136	push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
618		1137
619	sub timer {	1138	sub timer {
…		…
621		1140
622	my $cb = $arg{cb};	1141	my $cb = $arg{cb};
623		1142
624	urxvt::timer	1143	urxvt::timer
625	->new	1144	->new
626	->start (urxvt::NOW + $arg{after})	1145	->after ($arg{after}, $arg{interval})
627	->cb (sub {	1146	->cb ($arg{interval} ? $cb : sub {
628	$_[0]->stop; # need to cancel manually	1147	$_[0]->stop; # need to cancel manually
629	$cb->();	1148	$cb->();
630	})	1149	})
631	}	1150	}
632		1151
633	sub io {	1152	sub io {
634	my ($class, %arg) = @_;	1153	my ($class, %arg) = @_;
635		1154
636	my $cb = $arg{cb};	1155	my $cb = $arg{cb};
		1156	my $fd = fileno $arg{fh};
		1157	defined $fd or $fd = $arg{fh};
637		1158
638	bless [$arg{fh}, urxvt::iow	1159	bless [$arg{fh}, urxvt::iow
639	->new	1160	->new
640	->fd (fileno $arg{fh})	1161	->fd ($fd)
641	->events (($arg{poll} =~ /r/ ? 1 : 0)	1162	->events (($arg{poll} =~ /r/ ? 1 : 0)
642	| ($arg{poll} =~ /w/ ? 2 : 0))	1163	| ($arg{poll} =~ /w/ ? 2 : 0))
643	->start	1164	->start
644	->cb (sub {	1165	->cb ($cb)
645	$cb->(($_[1] & 1 ? 'r' : '')
646	. ($_[1] & 2 ? 'w' : ''));
647	})],
648	urxvt::anyevent::	1166	], urxvt::anyevent::
		1167	}
		1168
		1169	sub idle {
		1170	my ($class, %arg) = @_;
		1171
		1172	my $cb = $arg{cb};
		1173
		1174	urxvt::iw
		1175	->new
		1176	->start
		1177	->cb ($cb)
		1178	}
		1179
		1180	sub child {
		1181	my ($class, %arg) = @_;
		1182
		1183	my $cb = $arg{cb};
		1184
		1185	urxvt::pw
		1186	->new
		1187	->start ($arg{pid})
		1188	->cb (sub {
		1189	$_[0]->stop; # need to cancel manually
		1190	$cb->($_[0]->rpid, $_[0]->rstatus);
		1191	})
649	}	1192	}
650		1193
651	sub DESTROY {	1194	sub DESTROY {
652	$_[0][1]->stop;	1195	$_[0][1]->stop;
653	}	1196	}
654		1197
655	sub condvar {	1198	sub one_event {
656	bless \my $flag, urxvt::anyevent::condvar::
657	}
658
659	sub urxvt::anyevent::condvar::broadcast {
660	${$_[0]}++;
661	}
662
663	sub urxvt::anyevent::condvar::wait {
664	unless (${$_[0]}) {
665	require Carp;
666	Carp::croak ("AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API");	1199	Carp::croak "AnyEvent->one_event blocking wait unsupported in urxvt, use a non-blocking API";
		1200	}
		1201
		1202	package urxvt::term;
		1203
		1204	=head2 The C<urxvt::term> Class
		1205
		1206	=over 4
		1207
		1208	=cut
		1209
		1210	# find on_xxx subs in the package and register them
		1211	# as hooks
		1212	sub register_package {
		1213	my ($self, $pkg, $argv) = @_;
		1214
		1215	no strict 'refs';
		1216
		1217	urxvt::verbose 6, "register package $pkg to $self";
		1218
		1219	@{"$pkg\::ISA"} = urxvt::term::extension::;
		1220
		1221	my $proxy = bless {
		1222	_pkg => $pkg,
		1223	argv => $argv,
		1224	}, $pkg;
		1225	Scalar::Util::weaken ($proxy->{term} = $self);
		1226
		1227	$self->{_pkg}{$pkg} = $proxy;
		1228
		1229	for my $name (@HOOKNAME) {
		1230	if (my $ref = $pkg->can ("on_" . lc $name)) {
		1231	$proxy->enable ($name => $ref);
		1232	}
667	}	1233	}
668	}	1234	}
669		1235
670	package urxvt::term;	1236	=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
671		1237
672	=head2 The C<urxvt::term> Class	1238	Creates a new terminal, very similar as if you had started it with system
		1239	C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
		1240	hash which defines the environment of the new terminal.
673		1241
674	=over 4	1242	Croaks (and probably outputs an error message) if the new instance
		1243	couldn't be created. Returns C<undef> if the new instance didn't
		1244	initialise perl, and the terminal object otherwise. The C<init> and
		1245	C<start> hooks will be called before this call returns, and are free to
		1246	refer to global data (which is race free).
		1247
		1248	=cut
		1249
		1250	sub new {
		1251	my ($class, $env, @args) = @_;
		1252
		1253	$env or Carp::croak "environment hash missing in call to urxvt::term->new";
		1254	@args or Carp::croak "name argument missing in call to urxvt::term->new";
		1255
		1256	_new ([ map "$_=$env->{$_}", keys %$env ], \@args);
		1257	}
675		1258
676	=item $term->destroy	1259	=item $term->destroy
677		1260
678	Destroy the terminal object (close the window, free resources etc.).	1261	Destroy the terminal object (close the window, free resources
		1262	etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
		1263	watchers (timers, io watchers) are still active.
		1264
		1265	=item $term->exec_async ($cmd[, @args])
		1266
		1267	Works like the combination of the C<fork>/C<exec> builtins, which executes
		1268	("starts") programs in the background. This function takes care of setting
		1269	the user environment before exec'ing the command (e.g. C<PATH>) and should
		1270	be preferred over explicit calls to C<exec> or C<system>.
		1271
		1272	Returns the pid of the subprocess or C<undef> on error.
		1273
		1274	=cut
		1275
		1276	sub exec_async {
		1277	my $self = shift;
		1278
		1279	my $pid = fork;
		1280
		1281	return $pid
		1282	if !defined $pid or $pid;
		1283
		1284	%ENV = %{ $self->env };
		1285
		1286	exec @_;
		1287	urxvt::_exit 255;
		1288	}
679		1289
680	=item $isset = $term->option ($optval[, $set])	1290	=item $isset = $term->option ($optval[, $set])
681		1291
682	Returns true if the option specified by C<$optval> is enabled, and	1292	Returns true if the option specified by C<$optval> is enabled, and
683	optionally change it. All option values are stored by name in the hash	1293	optionally change it. All option values are stored by name in the hash
684	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.	1294	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
685		1295
686	Here is a a likely non-exhaustive list of option names, please see the	1296	Here is a likely non-exhaustive list of option names, please see the
687	source file F</src/optinc.h> to see the actual list:	1297	source file F</src/optinc.h> to see the actual list:
688		1298
689	borderLess console cursorBlink cursorUnderline hold iconic insecure	1299	borderLess console cursorBlink cursorUnderline hold iconic insecure
690	intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage	1300	intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
691	pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating	1301	override-redirect pastableTabs pointerBlank reverseVideo scrollBar
692	scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer	1302	scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
693	secondaryScreen secondaryScroll skipBuiltinGlyphs transparent	1303	scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
694	tripleclickwords utmpInhibit visualBell	1304	transparent tripleclickwords utmpInhibit visualBell
695		1305
696	=item $value = $term->resource ($name[, $newval])	1306	=item $value = $term->resource ($name[, $newval])
697		1307
698	Returns the current resource value associated with a given name and	1308	Returns the current resource value associated with a given name and
699	optionally sets a new value. Setting values is most useful in the C<init>	1309	optionally sets a new value. Setting values is most useful in the C<init>
…		…
708	likely change).	1318	likely change).
709		1319
710	Please note that resource strings will currently only be freed when the	1320	Please note that resource strings will currently only be freed when the
711	terminal is destroyed, so changing options frequently will eat memory.	1321	terminal is destroyed, so changing options frequently will eat memory.
712		1322
713	Here is a a likely non-exhaustive list of resource names, not all of which	1323	Here is a likely non-exhaustive list of resource names, not all of which
714	are supported in every build, please see the source file F</src/rsinc.h>	1324	are supported in every build, please see the source file F</src/rsinc.h>
715	to see the actual list:	1325	to see the actual list:
716		1326
717	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont	1327	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
718	borderLess color cursorBlink cursorUnderline cutchars delete_key	1328	borderLess chdir color cursorBlink cursorUnderline cutchars delete_key
719	display_name embed ext_bwidth fade font geometry hold iconName	1329	display_name embed ext_bwidth fade font geometry hold iconName
720	imFont imLocale inputMethod insecure int_bwidth intensityStyles	1330	imFont imLocale inputMethod insecure int_bwidth intensityStyles
721	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier	1331	italicFont jumpScroll lineSpace letterSpace loginShell mapAlert meta8
722	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2	1332	modifier mouseWheelScrollPage name override_redirect pastableTabs path
723	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd	1333	perl_eval perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
724	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating	1334	preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
725	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput	1335	scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
726	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle	1336	scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
727	shade term_name title transparent transparent_all tripleclickwords	1337	secondaryScreen secondaryScroll shade term_name title
728	utmpInhibit visualBell	1338	transient_for transparent transparent_all tripleclickwords utmpInhibit
		1339	visualBell
729		1340
730	=cut	1341	=cut
731		1342
732	sub resource($$;$) {	1343	sub resource($$;$) {
733	my ($self, $name) = (shift, shift);	1344	my ($self, $name) = (shift, shift);
734	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);	1345	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
735	&urxvt::term::_resource	1346	goto &urxvt::term::_resource
736	}	1347	}
		1348
		1349	=item $value = $term->x_resource ($pattern)
		1350
		1351	Returns the X-Resource for the given pattern, excluding the program or
		1352	class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
		1353	same value as used by this instance of rxvt-unicode. Returns C<undef> if no
		1354	resource with that pattern exists.
		1355
		1356	This method should only be called during the C<on_start> hook, as there is
		1357	only one resource database per display, and later invocations might return
		1358	the wrong resources.
		1359
		1360	=item $success = $term->parse_keysym ($keysym_spec, $command_string)
		1361
		1362	Adds a keymap translation exactly as specified via a resource. See the
		1363	C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
737		1364
738	=item $rend = $term->rstyle ([$new_rstyle])	1365	=item $rend = $term->rstyle ([$new_rstyle])
739		1366
740	Return and optionally change the current rendition. Text that is output by	1367	Return and optionally change the current rendition. Text that is output by
741	the terminal application will use this style.	1368	the terminal application will use this style.
…		…
749		1376
750	=item ($row, $col) = $term->selection_beg ([$row, $col])	1377	=item ($row, $col) = $term->selection_beg ([$row, $col])
751		1378
752	=item ($row, $col) = $term->selection_end ([$row, $col])	1379	=item ($row, $col) = $term->selection_end ([$row, $col])
753		1380
754	Return the current values of the selection mark, begin or end positions,	1381	Return the current values of the selection mark, begin or end positions.
755	and optionally set them to new values.	1382
		1383	When arguments are given, then the selection coordinates are set to
		1384	C<$row> and C<$col>, and the selection screen is set to the current
		1385	screen.
		1386
		1387	=item $screen = $term->selection_screen ([$screen])
		1388
		1389	Returns the current selection screen, and then optionally sets it.
		1390
		1391	=item $term->selection_make ($eventtime[, $rectangular])
		1392
		1393	Tries to make a selection as set by C<selection_beg> and
		1394	C<selection_end>. If C<$rectangular> is true (default: false), a
		1395	rectangular selection will be made. This is the prefered function to make
		1396	a selection.
756		1397
757	=item $success = $term->selection_grab ($eventtime)	1398	=item $success = $term->selection_grab ($eventtime)
758		1399
759	Try to request the primary selection from the server (for example, as set	1400	Try to request the primary selection text from the server (for example, as
760	by the next method).	1401	set by the next method). No visual feedback will be given. This function
		1402	is mostly useful from within C<on_sel_grab> hooks.
761		1403
762	=item $oldtext = $term->selection ([$newtext])	1404	=item $oldtext = $term->selection ([$newtext])
763		1405
764	Return the current selection text and optionally replace it by C<$newtext>.	1406	Return the current selection text and optionally replace it by C<$newtext>.
765		1407
766	#=item $term->overlay ($x, $y, $text)	1408	=item $term->overlay_simple ($x, $y, $text)
767	#	1409
768	#Create a simple multi-line overlay box. See the next method for details.	1410	Create a simple multi-line overlay box. See the next method for details.
769	#	1411
770	#=cut	1412	=cut
771	#	1413
772	#sub urxvt::term::scr_overlay {	1414	sub overlay_simple {
773	# my ($self, $x, $y, $text) = @_;	1415	my ($self, $x, $y, $text) = @_;
774	#	1416
775	# my @lines = split /\n/, $text;	1417	my @lines = split /\n/, $text;
776	#	1418
777	# my $w = 0;	1419	my $w = List::Util::max map $self->strwidth ($_), @lines;
778	# for (map $self->strwidth ($_), @lines) {	1420
779	# $w = $_ if $w < $_;
780	# }
781	#
782	# $self->scr_overlay_new ($x, $y, $w, scalar @lines);	1421	my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
783	# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;	1422	$overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
784	#}	1423
		1424	$overlay
		1425	}
785		1426
786	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])	1427	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
787		1428
788	Create a new (empty) overlay at the given position with the given	1429	Create a new (empty) overlay at the given position with the given
789	width/height. C<$rstyle> defines the initial rendition style	1430	width/height. C<$rstyle> defines the initial rendition style
…		…
800		1441
801	The methods currently supported on C<urxvt::overlay> objects are:	1442	The methods currently supported on C<urxvt::overlay> objects are:
802		1443
803	=over 4	1444	=over 4
804		1445
805	=item $overlay->set ($x, $y, $text, $rend)	1446	=item $overlay->set ($x, $y, $text[, $rend])
806		1447
807	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts	1448	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts
808	text in rxvt-unicode's special encoding and an array of rendition values	1449	text in rxvt-unicode's special encoding and an array of rendition values
809	at a specific position inside the overlay.	1450	at a specific position inside the overlay.
		1451
		1452	If C<$rend> is missing, then the rendition will not be changed.
810		1453
811	=item $overlay->hide	1454	=item $overlay->hide
812		1455
813	If visible, hide the overlay, but do not destroy it.	1456	If visible, hide the overlay, but do not destroy it.
814		1457
…		…
856		1499
857	=item $string = $term->locale_decode ($octets)	1500	=item $string = $term->locale_decode ($octets)
858		1501
859	Convert the given locale-encoded octets into a perl string.	1502	Convert the given locale-encoded octets into a perl string.
860		1503
		1504	=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
		1505
		1506	XORs the rendition values in the given span with the provided value
		1507	(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
		1508	refresh hooks to provide effects similar to the selection.
		1509
		1510	=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
		1511
		1512	Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
		1513	whitespace will additionally be xored with the C<$rstyle2>, which defaults
		1514	to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
		1515	it instead. Both styles I<MUST NOT> contain font styles.
		1516
		1517	=item $term->scr_bell
		1518
		1519	Ring the bell!
		1520
861	=item $term->scr_add_lines ($string)	1521	=item $term->scr_add_lines ($string)
862		1522
863	Write the given text string to the screen, as if output by the application	1523	Write the given text string to the screen, as if output by the application
864	running inside the terminal. It may not contain command sequences (escape	1524	running inside the terminal. It may not contain command sequences (escape
865	codes), but is free to use line feeds, carriage returns and tabs. The	1525	codes), but is free to use line feeds, carriage returns and tabs. The
…		…
867		1527
868	Normally its not a good idea to use this function, as programs might be	1528	Normally its not a good idea to use this function, as programs might be
869	confused by changes in cursor position or scrolling. Its useful inside a	1529	confused by changes in cursor position or scrolling. Its useful inside a
870	C<on_add_lines> hook, though.	1530	C<on_add_lines> hook, though.
871		1531
		1532	=item $term->scr_change_screen ($screen)
		1533
		1534	Switch to given screen - 0 primary, 1 secondary.
		1535
872	=item $term->cmd_parse ($octets)	1536	=item $term->cmd_parse ($octets)
873		1537
874	Similar to C<scr_add_lines>, but the argument must be in the	1538	Similar to C<scr_add_lines>, but the argument must be in the
875	locale-specific encoding of the terminal and can contain command sequences	1539	locale-specific encoding of the terminal and can contain command sequences
876	(escape codes) that will be interpreted.	1540	(escape codes) that will be interpreted.
…		…
879		1543
880	Write the octets given in C<$data> to the tty (i.e. as program input). To	1544	Write the octets given in C<$data> to the tty (i.e. as program input). To
881	pass characters instead of octets, you should convert your strings first	1545	pass characters instead of octets, you should convert your strings first
882	to the locale-specific encoding using C<< $term->locale_encode >>.	1546	to the locale-specific encoding using C<< $term->locale_encode >>.
883		1547
		1548	=item $old_events = $term->pty_ev_events ([$new_events])
		1549
		1550	Replaces the event mask of the pty watcher by the given event mask. Can
		1551	be used to suppress input and output handling to the pty/tty. See the
		1552	description of C<< urxvt::timer->events >>. Make sure to always restore
		1553	the previous value.
		1554
		1555	=item $fd = $term->pty_fd
		1556
		1557	Returns the master file descriptor for the pty in use, or C<-1> if no pty
		1558	is used.
		1559
884	=item $windowid = $term->parent	1560	=item $windowid = $term->parent
885		1561
886	Return the window id of the toplevel window.	1562	Return the window id of the toplevel window.
887		1563
888	=item $windowid = $term->vt	1564	=item $windowid = $term->vt
889		1565
890	Return the window id of the terminal window.	1566	Return the window id of the terminal window.
891		1567
		1568	=item $term->vt_emask_add ($x_event_mask)
		1569
		1570	Adds the specified events to the vt event mask. Useful e.g. when you want
		1571	to receive pointer events all the times:
		1572
		1573	$term->vt_emask_add (urxvt::PointerMotionMask);
		1574
		1575	=item $term->focus_in
		1576
		1577	=item $term->focus_out
		1578
		1579	=item $term->key_press ($state, $keycode[, $time])
		1580
		1581	=item $term->key_release ($state, $keycode[, $time])
		1582
		1583	Deliver various fake events to to terminal.
		1584
892	=item $window_width = $term->width	1585	=item $window_width = $term->width
893		1586
894	=item $window_height = $term->height	1587	=item $window_height = $term->height
895		1588
896	=item $font_width = $term->fwidth	1589	=item $font_width = $term->fwidth
…		…
909		1602
910	=item $max_scrollback = $term->saveLines	1603	=item $max_scrollback = $term->saveLines
911		1604
912	=item $nrow_plus_saveLines = $term->total_rows	1605	=item $nrow_plus_saveLines = $term->total_rows
913		1606
914	=item $lines_in_scrollback = $term->nsaved	1607	=item $topmost_scrollback_row = $term->top_row
915		1608
916	Return various integers describing terminal characteristics.	1609	Return various integers describing terminal characteristics.
		1610
		1611	=item $x_display = $term->display_id
		1612
		1613	Return the DISPLAY used by rxvt-unicode.
		1614
		1615	=item $lc_ctype = $term->locale
		1616
		1617	Returns the LC_CTYPE category string used by this rxvt-unicode.
		1618
		1619	=item $env = $term->env
		1620
		1621	Returns a copy of the environment in effect for the terminal as a hashref
		1622	similar to C<\%ENV>.
		1623
		1624	=item @envv = $term->envv
		1625
		1626	Returns the environment as array of strings of the form C<VAR=VALUE>.
		1627
		1628	=item @argv = $term->argv
		1629
		1630	Return the argument vector as this terminal, similar to @ARGV, but
		1631	includes the program name as first element.
		1632
		1633	=cut
		1634
		1635	sub env {
		1636	+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), $_[0]->envv }
		1637	}
917		1638
918	=item $modifiermask = $term->ModLevel3Mask	1639	=item $modifiermask = $term->ModLevel3Mask
919		1640
920	=item $modifiermask = $term->ModMetaMask	1641	=item $modifiermask = $term->ModMetaMask
921		1642
922	=item $modifiermask = $term->ModNumLockMask	1643	=item $modifiermask = $term->ModNumLockMask
923		1644
924	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often	1645	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
925	AltGr), the meta key (often Alt) and the num lock key, if applicable.	1646	AltGr), the meta key (often Alt) and the num lock key, if applicable.
926		1647
		1648	=item $screen = $term->current_screen
		1649
		1650	Returns the currently displayed screen (0 primary, 1 secondary).
		1651
		1652	=item $cursor_is_hidden = $term->hidden_cursor
		1653
		1654	Returns whether the cursor is currently hidden or not.
		1655
927	=item $view_start = $term->view_start ([$newvalue])	1656	=item $view_start = $term->view_start ([$newvalue])
928		1657
929	Returns the negative row number of the topmost line. Minimum value is	1658	Returns the row number of the topmost displayed line. Maximum value is
930	C<0>, which displays the normal terminal contents. Larger values scroll	1659	C<0>, which displays the normal terminal contents. Lower values scroll
931	this many lines into the scrollback buffer.	1660	this many lines into the scrollback buffer.
932		1661
933	=item $term->want_refresh	1662	=item $term->want_refresh
934		1663
935	Requests a screen refresh. At the next opportunity, rxvt-unicode will	1664	Requests a screen refresh. At the next opportunity, rxvt-unicode will
…		…
938		1667
939	Used after changing terminal contents to display them.	1668	Used after changing terminal contents to display them.
940		1669
941	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])	1670	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
942		1671
943	Returns the text of the entire row with number C<$row_number>. Row C<0>	1672	Returns the text of the entire row with number C<$row_number>. Row C<< $term->top_row >>
944	is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost	1673	is the topmost terminal line, row C<< $term->nrow-1 >> is the bottommost
945	terminal line. The scrollback buffer starts at line C<-1> and extends to
946	line C<< -$term->nsaved >>. Nothing will be returned if a nonexistent line	1674	terminal line. Nothing will be returned if a nonexistent line
947	is requested.	1675	is requested.
948		1676
949	If C<$new_text> is specified, it will replace characters in the current	1677	If C<$new_text> is specified, it will replace characters in the current
950	line, starting at column C<$start_col> (default C<0>), which is useful	1678	line, starting at column C<$start_col> (default C<0>), which is useful
951	to replace only parts of a line. The font index in the rendition will	1679	to replace only parts of a line. The font index in the rendition will
952	automatically be updated.	1680	automatically be updated.
953		1681
954	C<$text> is in a special encoding: tabs and wide characters that use more	1682	C<$text> is in a special encoding: tabs and wide characters that use more
955	than one cell when displayed are padded with urxvt::NOCHAR characters	1683	than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
956	(C<chr 65535>). Characters with combining characters and other characters	1684	characters. Characters with combining characters and other characters that
957	that do not fit into the normal tetx encoding will be replaced with	1685	do not fit into the normal text encoding will be replaced with characters
958	characters in the private use area.	1686	in the private use area.
959		1687
960	You have to obey this encoding when changing text. The advantage is	1688	You have to obey this encoding when changing text. The advantage is
961	that C<substr> and similar functions work on screen cells and not on	1689	that C<substr> and similar functions work on screen cells and not on
962	characters.	1690	characters.
963		1691
…		…
1014	Return the row number of the first/last row of the line, respectively.	1742	Return the row number of the first/last row of the line, respectively.
1015		1743
1016	=item $offset = $line->offset_of ($row, $col)	1744	=item $offset = $line->offset_of ($row, $col)
1017		1745
1018	Returns the character offset of the given row|col pair within the logical	1746	Returns the character offset of the given row|col pair within the logical
1019	line.	1747	line. Works for rows outside the line, too, and returns corresponding
		1748	offsets outside the string.
1020		1749
1021	=item ($row, $col) = $line->coord_of ($offset)	1750	=item ($row, $col) = $line->coord_of ($offset)
1022		1751
1023	Translates a string offset into terminal coordinates again.	1752	Translates a string offset into terminal coordinates again.
1024		1753
…		…
1098	$offset / $self->{ncol} + $self->{beg},	1827	$offset / $self->{ncol} + $self->{beg},
1099	$offset % $self->{ncol}	1828	$offset % $self->{ncol}
1100	)	1829	)
1101	}	1830	}
1102		1831
1103	=item ($row, $col) = $line->coord_of ($offset)
1104	=item $text = $term->special_encode $string	1832	=item $text = $term->special_encode $string
1105		1833
1106	Converts a perl string into the special encoding used by rxvt-unicode,	1834	Converts a perl string into the special encoding used by rxvt-unicode,
1107	where one character corresponds to one screen cell. See	1835	where one character corresponds to one screen cell. See
1108	C<< $term->ROW_t >> for details.	1836	C<< $term->ROW_t >> for details.
1109		1837
1110	=item $string = $term->special_decode $text	1838	=item $string = $term->special_decode $text
1111		1839
1112	Converts rxvt-unicodes text reprsentation into a perl string. See	1840	Converts rxvt-unicodes text representation into a perl string. See
1113	C<< $term->ROW_t >> for details.	1841	C<< $term->ROW_t >> for details.
		1842
		1843	=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
		1844
		1845	=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
		1846
		1847	Register/unregister a synchronous button grab. See the XGrabButton
		1848	manpage.
		1849
		1850	=item $success = $term->grab ($eventtime[, $sync])
		1851
		1852	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
		1853	synchronous (C<$sync> is true). Also remembers the grab timestamp.
		1854
		1855	=item $term->allow_events_async
		1856
		1857	Calls XAllowEvents with AsyncBoth for the most recent grab.
		1858
		1859	=item $term->allow_events_sync
		1860
		1861	Calls XAllowEvents with SyncBoth for the most recent grab.
		1862
		1863	=item $term->allow_events_replay
		1864
		1865	Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
		1866	recent grab.
		1867
		1868	=item $term->ungrab
		1869
		1870	Calls XUngrabPointer and XUngrabKeyboard for the most recent grab. Is called automatically on
		1871	evaluation errors, as it is better to lose the grab in the error case as
		1872	the session.
		1873
		1874	=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
		1875
		1876	=item $atom_name = $term->XGetAtomName ($atom)
		1877
		1878	=item @atoms = $term->XListProperties ($window)
		1879
		1880	=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
		1881
		1882	=item $term->XChangeProperty ($window, $property, $type, $format, $octets)
		1883
		1884	=item $term->XDeleteProperty ($window, $property)
		1885
		1886	=item $window = $term->DefaultRootWindow
		1887
		1888	=item $term->XReparentWindow ($window, $parent, [$x, $y])
		1889
		1890	=item $term->XMapWindow ($window)
		1891
		1892	=item $term->XUnmapWindow ($window)
		1893
		1894	=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
		1895
		1896	=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
		1897
		1898	=item $term->XChangeInput ($window, $add_events[, $del_events])
		1899
		1900	Various X or X-related functions. The C<$term> object only serves as
		1901	the source of the display, otherwise those functions map more-or-less
		1902	directly onto the X functions of the same name.
1114		1903
1115	=back	1904	=back
1116		1905
1117	=cut	1906	=cut
1118		1907
…		…
1134	$item->{render} ||= sub { $_[0]{text} };	1923	$item->{render} ||= sub { $_[0]{text} };
1135		1924
1136	push @{ $self->{item} }, $item;	1925	push @{ $self->{item} }, $item;
1137	}	1926	}
1138		1927
1139	sub add_separator {	1928	=item $popup->add_title ($title)
1140	my ($self, $sep) = @_;
1141		1929
1142	$sep ||= "═";	1930	Adds a non-clickable title to the popup.
1143		1931
1144	$self->add_item ({	1932	=cut
1145	rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
1146	text => "",
1147	render => sub { $sep x $urxvt::TERM->ncol },
1148	activate => sub { },
1149	});
1150	}
1151		1933
1152	sub add_title {	1934	sub add_title {
1153	my ($self, $title) = @_;	1935	my ($self, $title) = @_;
1154		1936
1155	$self->add_item ({	1937	$self->add_item ({
…		…
1157	text => $title,	1939	text => $title,
1158	activate => sub { },	1940	activate => sub { },
1159	});	1941	});
1160	}	1942	}
1161		1943
		1944	=item $popup->add_separator ([$sepchr])
		1945
		1946	Creates a separator, optionally using the character given as C<$sepchr>.
		1947
		1948	=cut
		1949
		1950	sub add_separator {
		1951	my ($self, $sep) = @_;
		1952
		1953	$sep ||= "=";
		1954
		1955	$self->add_item ({
		1956	rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
		1957	text => "",
		1958	render => sub { $sep x $self->{term}->ncol },
		1959	activate => sub { },
		1960	});
		1961	}
		1962
		1963	=item $popup->add_button ($text, $cb)
		1964
		1965	Adds a clickable button to the popup. C<$cb> is called whenever it is
		1966	selected.
		1967
		1968	=cut
		1969
1162	sub add_button {	1970	sub add_button {
1163	my ($self, $text, $cb) = @_;	1971	my ($self, $text, $cb) = @_;
1164		1972
1165	$self->add_item ({ type => "button", text => "[ $text ]", activate => $cb});	1973	$self->add_item ({ type => "button", text => $text, activate => $cb});
1166	}	1974	}
		1975
		1976	=item $popup->add_toggle ($text, $initial_value, $cb)
		1977
		1978	Adds a toggle/checkbox item to the popup. The callback gets called
		1979	whenever it gets toggled, with a boolean indicating its new value as its
		1980	first argument.
		1981
		1982	=cut
1167		1983
1168	sub add_toggle {	1984	sub add_toggle {
1169	my ($self, $text, $cb, $value) = @_;	1985	my ($self, $text, $value, $cb) = @_;
1170		1986
1171	my $item; $item = {	1987	my $item; $item = {
1172	type => "button",	1988	type => "button",
1173	text => " $text",	1989	text => " $text",
1174	value => $value,	1990	value => $value,
1175	render => sub { ($_[0]{value} ? "* " : " ") . $text },	1991	render => sub { ($_[0]{value} ? "* " : " ") . $text },
1176	activate => sub { $cb->($_[0]{value} = !$_[0]{value}); },	1992	activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
1177	};	1993	};
1178		1994
1179	$self->add_item ($item);	1995	$self->add_item ($item);
1180	}	1996	}
		1997
		1998	=item $popup->show
		1999
		2000	Displays the popup (which is initially hidden).
		2001
		2002	=cut
1181		2003
1182	sub show {	2004	sub show {
1183	my ($self) = @_;	2005	my ($self) = @_;
1184		2006
1185	local $urxvt::popup::self = $self;	2007	local $urxvt::popup::self = $self;
1186		2008
1187	urxvt->new ("--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0,	2009	my $env = $self->{term}->env;
		2010	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
		2011	delete $env->{LC_ALL};
		2012	$env->{LC_CTYPE} = $self->{term}->locale;
		2013
		2014	my $term = urxvt::term->new (
		2015	$env, "popup",
		2016	"--perl-lib" => "", "--perl-ext-common" => "",
		2017	"-pty-fd" => -1, "-sl" => 0,
		2018	"-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1188	"--transient-for" => $self->{term}->parent,	2019	"--transient-for" => $self->{term}->parent,
		2020	"-display" => $self->{term}->display_id,
1189	"-pe" => "urxvt-popup")	2021	"-pe" => "urxvt-popup",
1190	or die "unable to create popup window\n";	2022	) or die "unable to create popup window\n";
		2023
		2024	unless (delete $term->{urxvt_popup_init_done}) {
		2025	$term->ungrab;
		2026	$term->destroy;
		2027	die "unable to initialise popup window\n";
		2028	}
1191	}	2029	}
1192		2030
1193	sub DESTROY {	2031	sub DESTROY {
1194	my ($self) = @_;	2032	my ($self) = @_;
1195		2033
1196	delete $self->{term}{_destroy}{$self};	2034	delete $self->{term}{_destroy}{$self};
1197	$self->{term}->ungrab;	2035	$self->{term}->ungrab;
1198	}	2036	}
		2037
		2038	=back
		2039
		2040	=cut
		2041
		2042	package urxvt::watcher;
1199		2043
1200	=head2 The C<urxvt::timer> Class	2044	=head2 The C<urxvt::timer> Class
1201		2045
1202	This class implements timer watchers/events. Time is represented as a	2046	This class implements timer watchers/events. Time is represented as a
1203	fractional number of seconds since the epoch. Example:	2047	fractional number of seconds since the epoch. Example:
…		…
1207	->new	2051	->new
1208	->interval (1)	2052	->interval (1)
1209	->cb (sub {	2053	->cb (sub {
1210	$term->{overlay}->set (0, 0,	2054	$term->{overlay}->set (0, 0,
1211	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);	2055	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
1212	});	2056	});
1213		2057
1214	=over 4	2058	=over 4
1215		2059
1216	=item $timer = new urxvt::timer	2060	=item $timer = new urxvt::timer
1217		2061
…		…
1220		2064
1221	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })	2065	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })
1222		2066
1223	Set the callback to be called when the timer triggers.	2067	Set the callback to be called when the timer triggers.
1224		2068
1225	=item $tstamp = $timer->at
1226
1227	Return the time this watcher will fire next.
1228
1229	=item $timer = $timer->set ($tstamp)	2069	=item $timer = $timer->set ($tstamp[, $interval])
1230		2070
1231	Set the time the event is generated to $tstamp.	2071	Set the time the event is generated to $tstamp (and optionally specifies a
		2072	new $interval).
1232		2073
1233	=item $timer = $timer->interval ($interval)	2074	=item $timer = $timer->interval ($interval)
1234		2075
1235	Normally (and when C<$interval> is C<0>), the timer will automatically	2076	By default (and when C<$interval> is C<0>), the timer will automatically
1236	stop after it has fired once. If C<$interval> is non-zero, then the timer	2077	stop after it has fired once. If C<$interval> is non-zero, then the timer
1237	is automatically rescheduled at the given intervals.	2078	is automatically rescheduled at the given intervals.
1238		2079
1239	=item $timer = $timer->start	2080	=item $timer = $timer->start
1240		2081
1241	Start the timer.	2082	Start the timer.
1242		2083
1243	=item $timer = $timer->start ($tstamp)	2084	=item $timer = $timer->start ($tstamp[, $interval])
1244		2085
1245	Set the event trigger time to C<$tstamp> and start the timer.	2086	Set the event trigger time to C<$tstamp> and start the timer. Optionally
		2087	also replaces the interval.
		2088
		2089	=item $timer = $timer->after ($delay[, $interval])
		2090
		2091	Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1246		2092
1247	=item $timer = $timer->stop	2093	=item $timer = $timer->stop
1248		2094
1249	Stop the timer.	2095	Stop the timer.
1250		2096
…		…
1256		2102
1257	$term->{socket} = ...	2103	$term->{socket} = ...
1258	$term->{iow} = urxvt::iow	2104	$term->{iow} = urxvt::iow
1259	->new	2105	->new
1260	->fd (fileno $term->{socket})	2106	->fd (fileno $term->{socket})
1261	->events (1) # wait for read data	2107	->events (urxvt::EV_READ)
1262	->start	2108	->start
1263	->cb (sub {	2109	->cb (sub {
1264	my ($iow, $revents) = @_;	2110	my ($iow, $revents) = @_;
1265	# $revents must be 1 here, no need to check	2111	# $revents must be 1 here, no need to check
1266	sysread $term->{socket}, my $buf, 8192	2112	sysread $term->{socket}, my $buf, 8192
…		…
1279	Set the callback to be called when io events are triggered. C<$reventmask>	2125	Set the callback to be called when io events are triggered. C<$reventmask>
1280	is a bitset as described in the C<events> method.	2126	is a bitset as described in the C<events> method.
1281		2127
1282	=item $iow = $iow->fd ($fd)	2128	=item $iow = $iow->fd ($fd)
1283		2129
1284	Set the filedescriptor (not handle) to watch.	2130	Set the file descriptor (not handle) to watch.
1285		2131
1286	=item $iow = $iow->events ($eventmask)	2132	=item $iow = $iow->events ($eventmask)
1287		2133
1288	Set the event mask to watch. Bit #0 (value C<1>) enables watching for read	2134	Set the event mask to watch. The only allowed values are
1289	data, Bit #1 (value C<2>) enables watching for write data.	2135	C<urxvt::EV_READ> and C<urxvt::EV_WRITE>, which might be ORed
		2136	together, or C<urxvt::EV_NONE>.
1290		2137
1291	=item $iow = $iow->start	2138	=item $iow = $iow->start
1292		2139
1293	Start watching for requested events on the given handle.	2140	Start watching for requested events on the given handle.
1294		2141
1295	=item $iow = $iow->stop	2142	=item $iow = $iow->stop
1296		2143
1297	Stop watching for events on the given filehandle.	2144	Stop watching for events on the given file handle.
		2145
		2146	=back
		2147
		2148	=head2 The C<urxvt::iw> Class
		2149
		2150	This class implements idle watchers, that get called automatically when
		2151	the process is idle. They should return as fast as possible, after doing
		2152	some useful work.
		2153
		2154	=over 4
		2155
		2156	=item $iw = new urxvt::iw
		2157
		2158	Create a new idle watcher object in stopped state.
		2159
		2160	=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
		2161
		2162	Set the callback to be called when the watcher triggers.
		2163
		2164	=item $timer = $timer->start
		2165
		2166	Start the watcher.
		2167
		2168	=item $timer = $timer->stop
		2169
		2170	Stop the watcher.
		2171
		2172	=back
		2173
		2174	=head2 The C<urxvt::pw> Class
		2175
		2176	This class implements process watchers. They create an event whenever a
		2177	process exits, after which they stop automatically.
		2178
		2179	my $pid = fork;
		2180	...
		2181	$term->{pw} = urxvt::pw
		2182	->new
		2183	->start ($pid)
		2184	->cb (sub {
		2185	my ($pw, $exit_status) = @_;
		2186	...
		2187	});
		2188
		2189	=over 4
		2190
		2191	=item $pw = new urxvt::pw
		2192
		2193	Create a new process watcher in stopped state.
		2194
		2195	=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
		2196
		2197	Set the callback to be called when the timer triggers.
		2198
		2199	=item $pw = $timer->start ($pid)
		2200
		2201	Tells the watcher to start watching for process C<$pid>.
		2202
		2203	=item $pw = $pw->stop
		2204
		2205	Stop the watcher.
1298		2206
1299	=back	2207	=back
1300		2208
1301	=head1 ENVIRONMENT	2209	=head1 ENVIRONMENT
1302		2210
…		…
1309		2217
1310	=item == 0 - fatal messages	2218	=item == 0 - fatal messages
1311		2219
1312	=item >= 3 - script loading and management	2220	=item >= 3 - script loading and management
1313		2221
1314	=item >=10 - all events received	2222	=item >=10 - all called hooks
		2223
		2224	=item >=11 - hook return values
1315		2225
1316	=back	2226	=back
1317		2227
1318	=head1 AUTHOR	2228	=head1 AUTHOR
1319		2229
…		…
1321	http://software.schmorp.de/pkg/rxvt-unicode	2231	http://software.schmorp.de/pkg/rxvt-unicode
1322		2232
1323	=cut	2233	=cut
1324		2234
1325	1	2235	1
		2236
		2237	# vim: sw=3:

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