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Revision 1.38 by root, Fri Jan 6 03:43:12 2006 UTC vs.
Revision 1.203 by sf-exg, Fri Dec 2 09:03:43 2011 UTC

…		…
17		17
18	@@RXVT_NAME@@ --perl-lib $HOME -pe grab_test	18	@@RXVT_NAME@@ --perl-lib $HOME -pe grab_test
19		19
20	=head1 DESCRIPTION	20	=head1 DESCRIPTION
21		21
22	Everytime a terminal object gets created, scripts specified via the	22	Every time a terminal object gets created, extension scripts specified via
23	C<perl> resource are loaded and associated with it.	23	the C<perl> resource are loaded and associated with it.
24		24
25	Scripts are compiled in a 'use strict' and 'use utf8' environment, and	25	Scripts are compiled in a 'use strict' and 'use utf8' environment, and
26	thus must be encoded as UTF-8.	26	thus must be encoded as UTF-8.
27		27
28	Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where	28	Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where
29	scripts will be shared (but not enabled) for all terminals.	29	scripts will be shared (but not enabled) for all terminals.
30		30
31	=head2 Prepackaged Extensions	31	You can disable the embedded perl interpreter by setting both "perl-ext"
		32	and "perl-ext-common" resources to the empty string.
32		33
		34	=head1 PREPACKAGED EXTENSIONS
		35
33	This section describes the extensiosn delivered with this version. You can	36	This section describes the extensions delivered with this release. You can
34	find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.	37	find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.
35		38
36	You can activate them like this:	39	You can activate them like this:
37		40
38	@@RXVT_NAME@@ -pe <extensionname>	41	@@RXVT_NAME@@ -pe <extensionname>
39		42
		43	Or by adding them to the resource for extensions loaded by default:
		44
		45	URxvt.perl-ext-common: default,selection-autotransform
		46
40	=over 4	47	=over 4
41		48
42	=item selection	49	=item selection (enabled by default)
43		50
44	Intelligent selection. This extension tries to be more intelligent when	51	(More) intelligent selection. This extension tries to be more intelligent
45	the user extends selections (double-click). Right now, it tries to select	52	when the user extends selections (double-click and further clicks). Right
46	urls and complete shell-quoted arguments, which is very convenient, too,	53	now, it tries to select words, urls and complete shell-quoted
47	if your F<ls> supports C<--quoting-style=shell>.	54	arguments, which is very convenient, too, if your F<ls> supports
		55	C<--quoting-style=shell>.
48		56
49	It also offers the following bindable event:	57	A double-click usually selects the word under the cursor, further clicks
		58	will enlarge the selection.
		59
		60	The selection works by trying to match a number of regexes and displaying
		61	them in increasing order of length. You can add your own regexes by
		62	specifying resources of the form:
		63
		64	URxvt.selection.pattern-0: perl-regex
		65	URxvt.selection.pattern-1: perl-regex
		66	...
		67
		68	The index number (0, 1...) must not have any holes, and each regex must
		69	contain at least one pair of capturing parentheses, which will be used for
		70	the match. For example, the following adds a regex that matches everything
		71	between two vertical bars:
		72
		73	URxvt.selection.pattern-0: \\|([^|]+)\\|
		74
		75	Another example: Programs I use often output "absolute path: " at the
		76	beginning of a line when they process multiple files. The following
		77	pattern matches the filename (note, there is a single space at the very
		78	end):
		79
		80	URxvt.selection.pattern-0: ^(/[^:]+):\
		81
		82	You can look at the source of the selection extension to see more
		83	interesting uses, such as parsing a line from beginning to end.
		84
		85	This extension also offers following bindable keyboard commands:
50		86
51	=over 4	87	=over 4
52		88
53	=item rot13	89	=item rot13
54		90
…		…
56		92
57	URxvt.keysym.C-M-r: perl:selection:rot13	93	URxvt.keysym.C-M-r: perl:selection:rot13
58		94
59	=back	95	=back
60		96
		97	=item option-popup (enabled by default)
		98
		99	Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at
		100	runtime.
		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
		119	=item selection-popup (enabled by default)
		120
		121	Binds a popup menu to Ctrl-Button3 that lets you convert the selection
		122	text into various other formats/action (such as uri unescaping, perl
		123	evaluation, web-browser starting etc.), depending on content.
		124
		125	Other extensions can extend this popup menu by pushing a code reference
		126	onto C<@{ $term->{selection_popup_hook} }>, which gets called whenever the
		127	popup is being displayed.
		128
		129	Its sole argument is the popup menu, which can be modified. The selection
		130	is in C<$_>, which can be used to decide whether to add something or not.
		131	It should either return nothing or a string and a code reference. The
		132	string will be used as button text and the code reference will be called
		133	when the button gets activated and should transform C<$_>.
		134
		135	The following will add an entry C<a to b> that transforms all C<a>s in
		136	the selection to C<b>s, but only if the selection currently contains any
		137	C<a>s:
		138
		139	push @{ $self->{term}{selection_popup_hook} }, sub {
		140	/a/ ? ("a to b" => sub { s/a/b/g }
		141	: ()
		142	};
		143
		144	=item searchable-scrollback<hotkey> (enabled by default)
		145
		146	Adds regex search functionality to the scrollback buffer, triggered
		147	by a hotkey (default: C<M-s>). While in search mode, normal terminal
		148	input/output is suspended and a regex is displayed at the bottom of the
		149	screen.
		150
		151	Inputting characters appends them to the regex and continues incremental
		152	search. C<BackSpace> removes a character from the regex, C<Up> and C<Down>
		153	search upwards/downwards in the scrollback buffer, C<End> jumps to the
		154	bottom. C<Escape> leaves search mode and returns to the point where search
		155	was started, while C<Enter> or C<Return> stay at the current position and
		156	additionally stores the first match in the current line into the primary
		157	selection if the C<Shift> modifier is active.
		158
		159	The regex defaults to "(?i)", resulting in a case-insensitive search. To
		160	get a case-sensitive search you can delete this prefix using C<BackSpace>
		161	or simply use an uppercase character which removes the "(?i)" prefix.
		162
		163	See L<perlre> for more info about perl regular expression syntax.
		164
		165	=item readline (enabled by default)
		166
		167	A support package that tries to make editing with readline easier. At
		168	the moment, it reacts to clicking shift-left mouse button by trying to
		169	move the text cursor to this position. It does so by generating as many
		170	cursor-left or cursor-right keypresses as required (this only works
		171	for programs that correctly support wide characters).
		172
		173	To avoid too many false positives, this is only done when:
		174
		175	=over 4
		176
		177	=item - the tty is in ICANON state.
		178
		179	=item - the text cursor is visible.
		180
		181	=item - the primary screen is currently being displayed.
		182
		183	=item - the mouse is on the same (multi-row-) line as the text cursor.
		184
		185	=back
		186
		187	The normal selection mechanism isn't disabled, so quick successive clicks
		188	might interfere with selection creation in harmless ways.
		189
		190	=item selection-autotransform
		191
		192	This selection allows you to do automatic transforms on a selection
		193	whenever a selection is made.
		194
		195	It works by specifying perl snippets (most useful is a single C<s///>
		196	operator) that modify C<$_> as resources:
		197
		198	URxvt.selection-autotransform.0: transform
		199	URxvt.selection-autotransform.1: transform
		200	...
		201
		202	For example, the following will transform selections of the form
		203	C<filename:number>, often seen in compiler messages, into C<vi +$filename
		204	$word>:
		205
		206	URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
		207
		208	And this example matches the same,but replaces it with vi-commands you can
		209	paste directly into your (vi :) editor:
		210
		211	URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
		212
		213	Of course, this can be modified to suit your needs and your editor :)
		214
		215	To expand the example above to typical perl error messages ("XXX at
		216	FILENAME line YYY."), you need a slightly more elaborate solution:
		217
		218	URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
		219	URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
		220
		221	The first line tells the selection code to treat the unchanging part of
		222	every error message as a selection pattern, and the second line transforms
		223	the message into vi commands to load the file.
		224
		225	=item tabbed
		226
		227	This transforms the terminal into a tabbar with additional terminals, that
		228	is, it implements what is commonly referred to as "tabbed terminal". The topmost line
		229	displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
		230	button per tab.
		231
		232	Clicking a button will activate that tab. Pressing B<Shift-Left> and
		233	B<Shift-Right> will switch to the tab left or right of the current one,
		234	while B<Shift-Down> creates a new tab.
		235
		236	The tabbar itself can be configured similarly to a normal terminal, but
		237	with a resource class of C<URxvt.tabbed>. In addition, it supports the
		238	following four resources (shown with defaults):
		239
		240	URxvt.tabbed.tabbar-fg: <colour-index, default 3>
		241	URxvt.tabbed.tabbar-bg: <colour-index, default 0>
		242	URxvt.tabbed.tab-fg: <colour-index, default 0>
		243	URxvt.tabbed.tab-bg: <colour-index, default 1>
		244
		245	See I<COLOR AND GRAPHICS> in the @@RXVT_NAME@@(1) manpage for valid
		246	indices.
		247
		248	=item matcher
		249
		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 or a list of matches
		265	from the keyboard. Simply bind a keysym to "perl:matcher:last" or
		266	"perl:matcher:list" as seen in the example below.
		267
		268	Example configuration:
		269
		270	URxvt.perl-ext: default,matcher
		271	URxvt.urlLauncher: sensible-browser
		272	URxvt.keysym.C-Delete: perl:matcher:last
		273	URxvt.keysym.M-Delete: perl:matcher:list
		274	URxvt.matcher.button: 1
		275	URxvt.matcher.pattern.1: \\bwww\\.[\\w-]+\\.[\\w./?&@#-]*[\\w/-]
		276	URxvt.matcher.pattern.2: \\B(/\\S+?):(\\d+)(?=:|$)
		277	URxvt.matcher.launcher.2: gvim +$2 $1
		278
		279	=item xim-onthespot
		280
		281	This (experimental) perl extension implements OnTheSpot editing. It does
		282	not work perfectly, and some input methods don't seem to work well with
		283	OnTheSpot editing in general, but it seems to work at least for SCIM and
		284	kinput2.
		285
		286	You enable it by specifying this extension and a preedit style of
		287	C<OnTheSpot>, i.e.:
		288
		289	@@RXVT_NAME@@ -pt OnTheSpot -pe xim-onthespot
		290
		291	=item kuake<hotkey>
		292
		293	A very primitive quake-console-like extension. It was inspired by a
		294	description of how the programs C<kuake> and C<yakuake> work: Whenever the
		295	user presses a global accelerator key (by default C<F10>), the terminal
		296	will show or hide itself. Another press of the accelerator key will hide
		297	or show it again.
		298
		299	Initially, the window will not be shown when using this extension.
		300
		301	This is useful if you need a single terminal that is not using any desktop
		302	space most of the time but is quickly available at the press of a key.
		303
		304	The accelerator key is grabbed regardless of any modifiers, so this
		305	extension will actually grab a physical key just for this function.
		306
		307	If you want a quake-like animation, tell your window manager to do so
		308	(fvwm can do it).
		309
		310	=item overlay-osc
		311
		312	This extension implements some OSC commands to display timed popups on the
		313	screen - useful for status displays from within scripts. You have to read
		314	the sources for more info.
		315
		316	=item block-graphics-to-ascii
		317
		318	A not very useful example of filtering all text output to the terminal
		319	by replacing all line-drawing characters (U+2500 .. U+259F) by a
		320	similar-looking ascii character.
		321
61	=item digital-clock	322	=item digital-clock
62		323
63	Displays a digital clock using the built-in overlay.	324	Displays a digital clock using the built-in overlay.
64		325
65	=item mark-urls	326	=item remote-clipboard
66		327
67	Uses per-line filtering (C<on_line_update>) to underline urls.	328	Somewhat of a misnomer, this extension adds two menu entries to the
		329	selection popup that allows one to run external commands to store the
		330	selection somewhere and fetch it again.
		331
		332	We use it to implement a "distributed selection mechanism", which just
		333	means that one command uploads the file to a remote server, and another
		334	reads it.
		335
		336	The commands can be set using the C<URxvt.remote-selection.store> and
		337	C<URxvt.remote-selection.fetch> resources. The first should read the
		338	selection to store from STDIN (always in UTF-8), the second should provide
		339	the selection data on STDOUT (also in UTF-8).
		340
		341	The defaults (which are likely useless to you) use rsh and cat:
		342
		343	URxvt.remote-selection.store: rsh ruth 'cat >/tmp/distributed-selection'
		344	URxvt.remote-selection.fetch: rsh ruth 'cat /tmp/distributed-selection'
		345
		346	=item selection-pastebin
		347
		348	This is a little rarely useful extension that uploads the selection as
		349	textfile to a remote site (or does other things). (The implementation is
		350	not currently secure for use in a multiuser environment as it writes to
		351	F</tmp> directly.).
		352
		353	It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
		354	i.e.
		355
		356	URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
		357
		358	Pressing this combination runs a command with C<%> replaced by the name of
		359	the textfile. This command can be set via a resource:
		360
		361	URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
		362
		363	And the default is likely not useful to anybody but the few people around
		364	here :)
		365
		366	The name of the textfile is the hex encoded md5 sum of the selection, so
		367	the same content should lead to the same filename.
		368
		369	After a successful upload the selection will be replaced by the text given
		370	in the C<selection-pastebin-url> resource (again, the % is the placeholder
		371	for the filename):
		372
		373	URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
		374
		375	I<Note to xrdb users:> xrdb uses the C preprocessor, which might interpret
		376	the double C</> characters as comment start. Use C<\057\057> instead,
		377	which works regardless of whether xrdb is used to parse the resource file
		378	or not.
		379
		380	=item macosx-clipboard and macosx-clipboard-native
		381
		382	These two modules implement an extended clipboard for Mac OS X. They are
		383	used like this:
		384
		385	URxvt.perl-ext-common: default,macosx-clipboard
		386	URxvt.keysym.M-c: perl:macosx-clipboard:copy
		387	URxvt.keysym.M-v: perl:macosx-clipboard:paste
		388
		389	The difference between them is that the native variant requires a
		390	perl from apple's devkit or so, and C<macosx-clipboard> requires the
		391	C<Mac::Pasteboard> module, works with other perls, has fewer bugs, is
		392	simpler etc. etc.
68		393
69	=item example-refresh-hooks	394	=item example-refresh-hooks
70		395
71	Displays a very simple digital clock in the upper right corner of the	396	Displays a very simple digital clock in the upper right corner of the
72	window. Illustrates overwriting the refresh callbacks to create your own	397	window. Illustrates overwriting the refresh callbacks to create your own
73	overlays or changes.	398	overlays or changes.
74		399
75	=item example-filter-input	400	=item confirm-paste
76		401
77	A not very useful example of filtering all text output to the terminal, by	402	Displays a confirmation dialog when a paste containing at least a full
78	underlining all urls that matches a certain regex (i.e. some urls :). It	403	line is detected.
79	is not very useful because urls that are output in multiple steps (e.g.	404
80	when typing them) do not get marked.	405	=item bell-command
		406
		407	Runs the command specified by the C<URxvt.bell-command> resource when
		408	a bell event occurs. For example, the following pops up a notification
		409	bubble with the text "Beep, Beep" using notify-send:
		410
		411	URxvt.bell-command: notify-send "Beep, Beep"
81		412
82	=back	413	=back
		414
		415	=head1 API DOCUMENTATION
83		416
84	=head2 General API Considerations	417	=head2 General API Considerations
85		418
86	All objects (such as terminals, time watchers etc.) are typical	419	All objects (such as terminals, time watchers etc.) are typical
87	reference-to-hash objects. The hash can be used to store anything you	420	reference-to-hash objects. The hash can be used to store anything you
…		…
99		432
100	=over 4	433	=over 4
101		434
102	=item $text	435	=item $text
103		436
104	Rxvt-unicodes special way of encoding text, where one "unicode" character	437	Rxvt-unicode's special way of encoding text, where one "unicode" character
105	always represents one screen cell. See L<row_t> for a discussion of this format.	438	always represents one screen cell. See L<ROW_t> for a discussion of this format.
106		439
107	=item $string	440	=item $string
108		441
109	A perl text string, with an emphasis on I<text>. It can store all unicode	442	A perl text string, with an emphasis on I<text>. It can store all unicode
110	characters and is to be distinguished with text encoded in a specific	443	characters and is to be distinguished with text encoded in a specific
…		…
113	=item $octets	446	=item $octets
114		447
115	Either binary data or - more common - a text string encoded in a	448	Either binary data or - more common - a text string encoded in a
116	locale-specific way.	449	locale-specific way.
117		450
		451	=item $keysym
		452
		453	an integer that is a valid X11 keysym code. You can convert a string
		454	into a keysym and viceversa by using C<XStringToKeysym> and
		455	C<XKeysymToString>.
		456
118	=back	457	=back
119		458
		459	=head2 Extension Objects
		460
		461	Every perl extension is a perl class. A separate perl object is created
		462	for each terminal, and each terminal has its own set of extension objects,
		463	which are passed as the first parameter to hooks. So extensions can use
		464	their C<$self> object without having to think about clashes with other
		465	extensions or other terminals, with the exception of methods and members
		466	that begin with an underscore character C<_>: these are reserved for
		467	internal use.
		468
		469	Although it isn't a C<urxvt::term> object, you can call all methods of the
		470	C<urxvt::term> class on this object.
		471
		472	It has the following methods and data members:
		473
		474	=over 4
		475
		476	=item $urxvt_term = $self->{term}
		477
		478	Returns the C<urxvt::term> object associated with this instance of the
		479	extension. This member I<must not> be changed in any way.
		480
		481	=item $self->enable ($hook_name => $cb, [$hook_name => $cb..])
		482
		483	Dynamically enable the given hooks (named without the C<on_> prefix) for
		484	this extension, replacing any previous hook. This is useful when you want
		485	to overwrite time-critical hooks only temporarily.
		486
		487	=item $self->disable ($hook_name[, $hook_name..])
		488
		489	Dynamically disable the given hooks.
		490
		491	=back
		492
120	=head2 Hooks	493	=head2 Hooks
121		494
122	The following subroutines can be declared in loaded scripts, and will be	495	The following subroutines can be declared in extension files, and will be
123	called whenever the relevant event happens.	496	called whenever the relevant event happens.
124		497
125	The first argument passed to them is an object private to each terminal	498	The first argument passed to them is an extension object as described in
126	and extension package. You can call all C<urxvt::term> methods on it, but	499	the in the C<Extension Objects> section.
127	its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
128	object that is shared between all packages is stored in the C<term>
129	member.
130		500
131	All of them must return a boolean value. If it is true, then the event	501	B<All> of these hooks must return a boolean value. If any of the called
132	counts as being I<consumed>, and the invocation of other hooks is skipped,	502	hooks returns true, then the event counts as being I<consumed>, and the
133	and the relevant action might not be carried out by the C++ code.	503	relevant action might not be carried out by the C++ code.
134		504
135	When in doubt, return a false value (preferably C<()>).	505	I<< When in doubt, return a false value (preferably C<()>). >>
136		506
137	=over 4	507	=over 4
138		508
139	=item on_init $term	509	=item on_init $term
140		510
141	Called after a new terminal object has been initialized, but before	511	Called after a new terminal object has been initialized, but before
142	windows are created or the command gets run. Most methods are unsafe to	512	windows are created or the command gets run. Most methods are unsafe to
143	call or deliver senseless data, as terminal size and other characteristics	513	call or deliver senseless data, as terminal size and other characteristics
144	have not yet been determined. You can safely query and change resources,	514	have not yet been determined. You can safely query and change resources
145	though.	515	and options, though. For many purposes the C<on_start> hook is a better
		516	place.
		517
		518	=item on_start $term
		519
		520	Called at the very end of initialisation of a new terminal, just before
		521	trying to map (display) the toplevel and returning to the main loop.
		522
		523	=item on_destroy $term
		524
		525	Called whenever something tries to destroy terminal, when the terminal is
		526	still fully functional (not for long, though).
146		527
147	=item on_reset $term	528	=item on_reset $term
148		529
149	Called after the screen is "reset" for any reason, such as resizing or	530	Called after the screen is "reset" for any reason, such as resizing or
150	control sequences. Here is where you can react on changes to size-related	531	control sequences. Here is where you can react on changes to size-related
151	variables.	532	variables.
152		533
153	=item on_start $term	534	=item on_child_start $term, $pid
154		535
155	Called at the very end of initialisation of a new terminal, just before	536	Called just after the child process has been C<fork>ed.
156	returning to the mainloop.	537
		538	=item on_child_exit $term, $status
		539
		540	Called just after the child process has exited. C<$status> is the status
		541	from C<waitpid>.
157		542
158	=item on_sel_make $term, $eventtime	543	=item on_sel_make $term, $eventtime
159		544
160	Called whenever a selection has been made by the user, but before the	545	Called whenever a selection has been made by the user, but before the
161	selection text is copied, so changes to the beginning, end or type of the	546	selection text is copied, so changes to the beginning, end or type of the
…		…
168		553
169	Called whenever a selection has been copied, but before the selection is	554	Called whenever a selection has been copied, but before the selection is
170	requested from the server. The selection text can be queried and changed	555	requested from the server. The selection text can be queried and changed
171	by calling C<< $term->selection >>.	556	by calling C<< $term->selection >>.
172		557
173	Returning a true value aborts selection grabbing. It will still be hilighted.	558	Returning a true value aborts selection grabbing. It will still be highlighted.
174		559
175	=item on_sel_extend $term	560	=item on_sel_extend $term
176		561
177	Called whenever the user tries to extend the selection (e.g. with a double	562	Called whenever the user tries to extend the selection (e.g. with a double
178	click) and is either supposed to return false (normal operation), or	563	click) and is either supposed to return false (normal operation), or
179	should extend the selection itelf and return true to suppress the built-in	564	should extend the selection itself and return true to suppress the built-in
180	processing.	565	processing. This can happen multiple times, as long as the callback
		566	returns true, it will be called on every further click by the user and is
		567	supposed to enlarge the selection more and more, if possible.
181		568
182	See the F<selection> example extension.	569	See the F<selection> example extension.
183		570
184	=item on_focus_in $term
185
186	Called whenever the window gets the keyboard focus, before urxvt does
187	focus in processing.
188
189	=item on_focus_out $term
190
191	Called wheneever the window loses keyboard focus, before urxvt does focus
192	out processing.
193
194	=item on_view_change $term, $offset	571	=item on_view_change $term, $offset
195		572
196	Called whenever the view offset changes, i..e the user or program	573	Called whenever the view offset changes, i.e. the user or program
197	scrolls. Offset C<0> means display the normal terminal, positive values	574	scrolls. Offset C<0> means display the normal terminal, positive values
198	show this many lines of scrollback.	575	show this many lines of scrollback.
199		576
200	=item on_scroll_back $term, $lines, $saved	577	=item on_scroll_back $term, $lines, $saved
201		578
…		…
205		582
206	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,	583	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	584	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
208	number of lines that will be in the scrollback buffer.	585	number of lines that will be in the scrollback buffer.
209		586
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	587	=item on_osc_seq $term, $op, $args, $resp
		588
		589	Called on every OSC sequence and can be used to suppress it or modify its
		590	behaviour. The default should be to return an empty list. A true value
		591	suppresses execution of the request completely. Make sure you don't get
		592	confused by recursive invocations when you output an OSC sequence within
		593	this callback.
		594
		595	C<on_osc_seq_perl> should be used for new behaviour.
		596
		597	=item on_osc_seq_perl $term, $args, $resp
215		598
216	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =	599	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
217	operating system command) is processed. Cursor position and other state	600	operating system command) is processed. Cursor position and other state
218	information is up-to-date when this happens. For interoperability, the	601	information is up-to-date when this happens. For interoperability, the
219	string should start with the extension name and a colon, to distinguish	602	string should start with the extension name (sans -osc) and a semicolon,
220	it from commands for other extensions, and this might be enforced in the	603	to distinguish it from commands for other extensions, and this might be
221	future.	604	enforced in the future.
		605
		606	For example, C<overlay-osc> uses this:
		607
		608	sub on_osc_seq_perl {
		609	my ($self, $osc, $resp) = @_;
		610
		611	return unless $osc =~ s/^overlay;//;
		612
		613	... process remaining $osc string
		614	}
222		615
223	Be careful not ever to trust (in a security sense) the data you receive,	616	Be careful not ever to trust (in a security sense) the data you receive,
224	as its source can not easily be controleld (e-mail content, messages from	617	as its source can not easily be controlled (e-mail content, messages from
225	other users on the same system etc.).	618	other users on the same system etc.).
		619
		620	For responses, C<$resp> contains the end-of-args separator used by the
		621	sender.
226		622
227	=item on_add_lines $term, $string	623	=item on_add_lines $term, $string
228		624
229	Called whenever text is about to be output, with the text as argument. You	625	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	626	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	627	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	628	might be very slow, however, as your hook is called for B<all> text being
233	output.	629	output.
234		630
		631	=item on_tt_write $term, $octets
		632
		633	Called whenever some data is written to the tty/pty and can be used to
		634	suppress or filter tty input.
		635
		636	=item on_tt_paste $term, $octets
		637
		638	Called whenever text is about to be pasted, with the text as argument. You
		639	can filter/change and paste the text yourself by returning a true value
		640	and calling C<< $term->tt_paste >> yourself. C<$octets> is
		641	locale-encoded.
		642
235	=item on_line_update $term, $row	643	=item on_line_update $term, $row
236		644
237	Called whenever a line was updated or changed. Can be used to filter	645	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	646	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,	647	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	654	later with the already-modified line (e.g. if unrelated parts change), so
247	you cannot just toggle rendition bits, but only set them.	655	you cannot just toggle rendition bits, but only set them.
248		656
249	=item on_refresh_begin $term	657	=item on_refresh_begin $term
250		658
251	Called just before the screen gets redrawn. Can be used for overlay	659	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	660	similar effects by modifying the terminal contents in refresh_begin, and
253	restoring them in refresh_end. The built-in overlay and selection display	661	restoring them in refresh_end. The built-in overlay and selection display
254	code is run after this hook, and takes precedence.	662	code is run after this hook, and takes precedence.
255		663
256	=item on_refresh_end $term	664	=item on_refresh_end $term
257		665
258	Called just after the screen gets redrawn. See C<on_refresh_begin>.	666	Called just after the screen gets redrawn. See C<on_refresh_begin>.
259		667
260	=item on_keyboard_command $term, $string	668	=item on_user_command $term, $string
261		669
262	Called whenever the user presses a key combination that has a	670	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>	671	a C<perl:string> action bound to a key, see description of the B<keysym>
264	resource in the @@RXVT_NAME@@(1) manpage).	672	resource in the @@RXVT_NAME@@(1) manpage).
265		673
		674	The event is simply the action string. This interface is assumed to change
		675	slightly in the future.
		676
		677	=item on_register_command $term, $keysym, $modifiermask, $string
		678
		679	Called after parsing a keysym resource but before registering the
		680	associated binding. If this hook returns TRUE the binding is not
		681	registered. It can be used to modify a binding by calling
		682	C<register_command>.
		683
		684	=item on_resize_all_windows $term, $new_width, $new_height
		685
		686	Called just after the new window size has been calculated, but before
		687	windows are actually being resized or hints are being set. If this hook
		688	returns TRUE, setting of the window hints is being skipped.
		689
		690	=item on_x_event $term, $event
		691
		692	Called on every X event received on the vt window (and possibly other
		693	windows). Should only be used as a last resort. Most event structure
		694	members are not passed.
		695
		696	=item on_root_event $term, $event
		697
		698	Like C<on_x_event>, but is called for events on the root window.
		699
		700	=item on_focus_in $term
		701
		702	Called whenever the window gets the keyboard focus, before rxvt-unicode
		703	does focus in processing.
		704
		705	=item on_focus_out $term
		706
		707	Called whenever the window loses keyboard focus, before rxvt-unicode does
		708	focus out processing.
		709
		710	=item on_configure_notify $term, $event
		711
		712	=item on_property_notify $term, $event
		713
266	=item on_key_press $term, $event, $octets	714	=item on_key_press $term, $event, $keysym, $octets
267		715
268	=item on_key_release $term, $event	716	=item on_key_release $term, $event, $keysym
269		717
270	=item on_button_press $term, $event	718	=item on_button_press $term, $event
271		719
272	=item on_button_release $term, $event	720	=item on_button_release $term, $event
273		721
274	=item on_motion_notify $term, $event	722	=item on_motion_notify $term, $event
275		723
		724	=item on_map_notify $term, $event
		725
		726	=item on_unmap_notify $term, $event
		727
276	Called whenever the corresponding X event is received for the terminal	728	Called whenever the corresponding X event is received for the terminal. If
277	(see the XEvent manpage) If the hook returns true, then the even will be	729	the hook returns true, then the event will be ignored by rxvt-unicode.
278	ignored by rxvt-unicode.	730
		731	The event is a hash with most values as named by Xlib (see the XEvent
		732	manpage), with the additional members C<row> and C<col>, which are the
		733	(real, not screen-based) row and column under the mouse cursor.
279		734
280	C<on_key_press> additionally receives the string rxvt-unicode would	735	C<on_key_press> additionally receives the string rxvt-unicode would
281	output, if any, in locale-specific encoding.	736	output, if any, in locale-specific encoding.
282		737
283	subwindow.	738	subwindow.
284		739
		740	=item on_client_message $term, $event
		741
		742	=item on_wm_protocols $term, $event
		743
		744	=item on_wm_delete_window $term, $event
		745
		746	Called when various types of ClientMessage events are received (all with
		747	format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
		748
		749	=item on_bell $term
		750
		751	Called on receipt of a bell character.
		752
285	=back	753	=back
286		754
		755	=cut
		756
		757	package urxvt;
		758
		759	use utf8;
		760	use strict;
		761	use Carp ();
		762	use Scalar::Util ();
		763	use List::Util ();
		764
		765	our $VERSION = 1;
		766	our $TERM;
		767	our @TERM_INIT;
		768	our @TERM_EXT;
		769	our @HOOKNAME;
		770	our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
		771	our %OPTION;
		772
		773	our $LIBDIR;
		774	our $RESNAME;
		775	our $RESCLASS;
		776	our $RXVTNAME;
		777
		778	our $NOCHAR = chr 0xffff;
		779
287	=head2 Variables in the C<urxvt> Package	780	=head2 Variables in the C<urxvt> Package
288		781
289	=over 4	782	=over 4
290		783
		784	=item $urxvt::LIBDIR
		785
		786	The rxvt-unicode library directory, where, among other things, the perl
		787	modules and scripts are stored.
		788
		789	=item $urxvt::RESCLASS, $urxvt::RESCLASS
		790
		791	The resource class and name rxvt-unicode uses to look up X resources.
		792
		793	=item $urxvt::RXVTNAME
		794
		795	The basename of the installed binaries, usually C<urxvt>.
		796
291	=item $urxvt::TERM	797	=item $urxvt::TERM
292		798
293	The current terminal. Whenever a callback/Hook is bein executed, this	799	The current terminal. This variable stores the current C<urxvt::term>
294	variable stores the current C<urxvt::term> object.	800	object, whenever a callback/hook is executing.
		801
		802	=item @urxvt::TERM_INIT
		803
		804	All code references in this array will be called as methods of the next newly
		805	created C<urxvt::term> object (during the C<on_init> phase). The array
		806	gets cleared before the code references that were in it are being executed,
		807	so references can push themselves onto it again if they so desire.
		808
		809	This complements to the perl-eval command line option, but gets executed
		810	first.
		811
		812	=item @urxvt::TERM_EXT
		813
		814	Works similar to C<@TERM_INIT>, but contains perl package/class names, which
		815	get registered as normal extensions after calling the hooks in C<@TERM_INIT>
		816	but before other extensions. Gets cleared just like C<@TERM_INIT>.
295		817
296	=back	818	=back
297		819
298	=head2 Functions in the C<urxvt> Package	820	=head2 Functions in the C<urxvt> Package
299		821
300	=over 4	822	=over 4
301		823
302	=item $term = new urxvt [arg...]
303
304	Creates a new terminal, very similar as if you had started it with
305	C<system $binfile, arg...>. Croaks (and probably outputs an error message)
306	if the new instance couldn't be created. Returns C<undef> if the new
307	instance didn't initialise perl, and the terminal object otherwise. The
308	C<init> and C<start> hooks will be called during the call.
309
310	=item urxvt::fatal $errormessage	824	=item urxvt::fatal $errormessage
311		825
312	Fatally aborts execution with the given error message. Avoid at all	826	Fatally aborts execution with the given error message (which should
313	costs! The only time this is acceptable is when the terminal process	827	include a trailing newline). Avoid at all costs! The only time this
314	starts up.	828	is acceptable (and useful) is in the init hook, where it prevents the
		829	terminal from starting up.
315		830
316	=item urxvt::warn $string	831	=item urxvt::warn $string
317		832
318	Calls C<rxvt_warn> with the given string which should not include a	833	Calls C<rxvt_warn> with the given string which should include a trailing
319	newline. The module also overwrites the C<warn> builtin with a function	834	newline. The module also overwrites the C<warn> builtin with a function
320	that calls this function.	835	that calls this function.
321		836
322	Using this function has the advantage that its output ends up in the	837	Using this function has the advantage that its output ends up in the
323	correct place, e.g. on stderr of the connecting urxvtc client.	838	correct place, e.g. on stderr of the connecting urxvtc client.
324		839
		840	Messages have a size limit of 1023 bytes currently.
		841
		842	=item @terms = urxvt::termlist
		843
		844	Returns all urxvt::term objects that exist in this process, regardless of
		845	whether they are started, being destroyed etc., so be careful. Only term
		846	objects that have perl extensions attached will be returned (because there
		847	is no urxvt::term object associated with others).
		848
325	=item $time = urxvt::NOW	849	=item $time = urxvt::NOW
326		850
327	Returns the "current time" (as per the event loop).	851	Returns the "current time" (as per the event loop).
		852
		853	=item urxvt::CurrentTime
		854
		855	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
		856	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
		857	Button4Mask, Button5Mask, AnyModifier
		858
		859	=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
		860	ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
		861	PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
		862	Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
		863	KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
		864	ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
		865	FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
		866
		867	=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
		868	EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
		869	GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
		870	UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
		871	ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
		872	CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
		873	SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
		874
		875	Various constants for use in X calls and event processing.
328		876
329	=back	877	=back
330		878
331	=head2 RENDITION	879	=head2 RENDITION
332		880
…		…
347		895
348	=item $rend = urxvt::OVERLAY_RSTYLE	896	=item $rend = urxvt::OVERLAY_RSTYLE
349		897
350	Return the rendition mask used for overlays by default.	898	Return the rendition mask used for overlays by default.
351		899
352	=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline	900	=item $rendbit = urxvt::RS_Bold, urxvt::RS_Italic, urxvt::RS_Blink,
		901	urxvt::RS_RVid, urxvt::RS_Uline
353		902
354	Return the bit that enabled bold, italic, blink, reverse-video and	903	Return the bit that enabled bold, italic, blink, reverse-video and
355	underline, respectively. To enable such a style, just logically OR it into	904	underline, respectively. To enable such a style, just logically OR it into
356	the bitset.	905	the bitset.
357		906
…		…
359		908
360	=item $background = urxvt::GET_BASEBG $rend	909	=item $background = urxvt::GET_BASEBG $rend
361		910
362	Return the foreground/background colour index, respectively.	911	Return the foreground/background colour index, respectively.
363		912
364	=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)	913	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
365		914
366	=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)	915	=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
		916
		917	=item $rend = urxvt::SET_COLOR $rend, $new_fg, $new_bg
367		918
368	Replace the foreground/background colour in the rendition mask with the	919	Replace the foreground/background colour in the rendition mask with the
369	specified one.	920	specified one.
370		921
371	=item $value = urxvt::GET_CUSTOM ($rend)	922	=item $value = urxvt::GET_CUSTOM $rend
372		923
373	Return the "custom" value: Every rendition has 5 bits for use by	924	Return the "custom" value: Every rendition has 5 bits for use by
374	extensions. They can be set and changed as you like and are initially	925	extensions. They can be set and changed as you like and are initially
375	zero.	926	zero.
376		927
377	=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)	928	=item $rend = urxvt::SET_CUSTOM $rend, $new_value
378		929
379	Change the custom value.	930	Change the custom value.
380		931
381	=back	932	=back
382		933
383	=cut	934	=cut
384		935
385	package urxvt;
386
387	use strict;
388	use Scalar::Util ();
389
390	our $TERM;
391	our @HOOKNAME;
392	our $LIBDIR;
393
394	BEGIN {	936	BEGIN {
395	urxvt->bootstrap;
396
397	# overwrite perl's warn	937	# overwrite perl's warn
398	*CORE::GLOBAL::warn = sub {	938	*CORE::GLOBAL::warn = sub {
399	my $msg = join "", @_;	939	my $msg = join "", @_;
400	$msg .= "\n"	940	$msg .= "\n"
401	unless $msg =~ /\n$/;	941	unless $msg =~ /\n$/;
402	urxvt::warn ($msg);	942	urxvt::warn ($msg);
403	};	943	};
404	}	944	}
405		945
406	my @hook_count;	946	no warnings 'utf8';
		947
407	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};	948	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
408		949
409	sub verbose {	950	sub verbose {
410	my ($level, $msg) = @_;	951	my ($level, $msg) = @_;
411	warn "$msg\n" if $level <= $verbosity;	952	warn "$msg\n" if $level <= $verbosity;
412	}	953	}
413		954
414	# find on_xxx subs in the package and register them	955	my %extension_pkg;
415	# as hooks
416	sub register_package($) {
417	my ($pkg) = @_;
418
419	for my $htype (0.. $#HOOKNAME) {
420	my $name = $HOOKNAME[$htype];
421
422	my $ref = $pkg->can ("on_" . lc $name)
423	or next;
424
425	$TERM->{_hook}[$htype]{$pkg} = $ref;
426	$hook_count[$htype]++
427	or set_should_invoke $htype, 1;
428	}
429	}
430
431	my $script_pkg = "script0000";
432	my %script_pkg;
433		956
434	# load a single script into its own package, once only	957	# load a single script into its own package, once only
435	sub script_package($) {	958	sub extension_package($) {
436	my ($path) = @_;	959	my ($path) = @_;
437		960
438	$script_pkg{$path} ||= do {	961	$extension_pkg{$path} ||= do {
439	my $pkg = "urxvt::" . ($script_pkg++);	962	$path =~ /([^\/\\]+)$/;
		963	my $pkg = $1;
		964	$pkg =~ s/[^[:word:]]/_/g;
		965	$pkg = "urxvt::ext::$pkg";
440		966
441	verbose 3, "loading script '$path' into package '$pkg'";	967	verbose 3, "loading extension '$path' into package '$pkg'";
442		968
443	open my $fh, "<:raw", $path	969	open my $fh, "<:raw", $path
444	or die "$path: $!";	970	or die "$path: $!";
445		971
446	my $source = "package $pkg; use strict; use utf8;\n"	972	my $source =
		973	"package $pkg; use strict; use utf8; no warnings 'utf8';\n"
447	. "#line 1 \"$path\"\n{\n"	974	. "#line 1 \"$path\"\n{\n"
448	. (do { local $/; <$fh> })	975	. (do { local $/; <$fh> })
449	. "\n};\n1";	976	. "\n};\n1";
450		977
		978	eval $source
451	eval $source or die "$path: $@";	979	or die "$path: $@";
452		980
453	$pkg	981	$pkg
454	}	982	}
455	}	983	}
456		984
…		…
460	sub invoke {	988	sub invoke {
461	local $TERM = shift;	989	local $TERM = shift;
462	my $htype = shift;	990	my $htype = shift;
463		991
464	if ($htype == 0) { # INIT	992	if ($htype == 0) { # INIT
465	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");	993	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$ENV{HOME}/.urxvt/ext", "$LIBDIR/perl");
466		994
		995	my %ext_arg;
		996
		997	{
		998	my @init = @TERM_INIT;
		999	@TERM_INIT = ();
		1000	$_->($TERM) for @init;
		1001	my @pkg = @TERM_EXT;
		1002	@TERM_EXT = ();
		1003	$TERM->register_package ($_) for @pkg;
		1004	}
		1005
467	for my $ext (map { split /:/, $TERM->resource ("perl_ext_$_") } 1, 2) {	1006	for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
		1007	if ($_ eq "default") {
		1008	$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
		1009	} elsif (/^-(.*)$/) {
		1010	delete $ext_arg{$1};
		1011	} elsif (/^([^<]+)<(.*)>$/) {
		1012	push @{ $ext_arg{$1} }, $2;
		1013	} else {
		1014	$ext_arg{$_} ||= [];
		1015	}
		1016	}
		1017
		1018	for my $ext (sort keys %ext_arg) {
468	my @files = grep -f $_, map "$_/$ext", @dirs;	1019	my @files = grep -f $_, map "$_/$ext", @dirs;
469		1020
470	if (@files) {	1021	if (@files) {
471	register_package script_package $files[0];	1022	$TERM->register_package (extension_package $files[0], $ext_arg{$ext});
472	} else {	1023	} else {
473	warn "perl extension '$ext' not found in perl library search path\n";	1024	warn "perl extension '$ext' not found in perl library search path\n";
474	}	1025	}
475	}	1026	}
		1027
		1028	eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval");
		1029	warn $@ if $@;
476	}	1030	}
477		1031
478	$retval = undef;	1032	$retval = undef;
479		1033
480	if (my $cb = $TERM->{_hook}[$htype]) {	1034	if (my $cb = $TERM->{_hook}[$htype]) {
481	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"	1035	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
482	if $verbosity >= 10;	1036	if $verbosity >= 10;
483		1037
484	keys %$cb;	1038	for my $pkg (keys %$cb) {
		1039	my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg}, @_) };
		1040	$retval ||= $retval_;
485		1041
486	while (my ($pkg, $cb) = each %$cb) {	1042	if ($@) {
487	$retval = $cb->(	1043	$TERM->ungrab; # better to lose the grab than the session
488	$TERM->{_pkg}{$pkg} ||= do {	1044	warn $@;
489	my $proxy = bless { }, urxvt::term::proxy::;
490	Scalar::Util::weaken ($proxy->{term} = $TERM);
491	$proxy
492	},
493	@_,
494	) and last;
495	}
496	}
497
498	if ($htype == 1) { # DESTROY
499	# remove hooks if unused
500	if (my $hook = $TERM->{_hook}) {
501	for my $htype (0..$#$hook) {
502	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
503	or set_should_invoke $htype, 0;
504	}	1045	}
505	}	1046	}
506		1047
		1048	verbose 11, "$HOOKNAME[$htype] returning <$retval>"
		1049	if $verbosity >= 11;
		1050	}
		1051
		1052	if ($htype == 1) { # DESTROY
507	# clear package objects	1053	# clear package objects
508	%$_ = () for values %{ $TERM->{_pkg} };	1054	%$_ = () for values %{ $TERM->{_pkg} };
509		1055
510	# clear package	1056	# clear package
511	%$TERM = ();	1057	%$TERM = ();
512	}	1058	}
513		1059
514	$retval	1060	$retval
515	}	1061	}
516		1062
517	sub urxvt::term::proxy::AUTOLOAD {	1063	sub SET_COLOR($$$) {
518	$urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/	1064	SET_BGCOLOR (SET_FGCOLOR ($_[0], $_[1]), $_[2])
		1065	}
		1066
		1067	sub rend2mask {
		1068	no strict 'refs';
		1069	my ($str, $mask) = (@_, 0);
		1070	my %color = ( fg => undef, bg => undef );
		1071	my @failed;
		1072	for my $spec ( split /\s+/, $str ) {
		1073	if ( $spec =~ /^([fb]g)[_:-]?(\d+)/i ) {
		1074	$color{lc($1)} = $2;
		1075	} else {
		1076	my $neg = $spec =~ s/^[-^]//;
		1077	unless ( exists &{"RS_$spec"} ) {
		1078	push @failed, $spec;
		1079	next;
		1080	}
		1081	my $cur = &{"RS_$spec"};
		1082	if ( $neg ) {
		1083	$mask &= ~$cur;
		1084	} else {
		1085	$mask |= $cur;
		1086	}
		1087	}
		1088	}
		1089	($mask, @color{qw(fg bg)}, \@failed)
		1090	}
		1091
		1092	# urxvt::term::extension
		1093
		1094	package urxvt::term::extension;
		1095
		1096	sub enable {
		1097	my ($self, %hook) = @_;
		1098	my $pkg = $self->{_pkg};
		1099
		1100	while (my ($name, $cb) = each %hook) {
		1101	my $htype = $HOOKTYPE{uc $name};
		1102	defined $htype
		1103	or Carp::croak "unsupported hook type '$name'";
		1104
		1105	$self->set_should_invoke ($htype, +1)
		1106	unless exists $self->{term}{_hook}[$htype]{$pkg};
		1107
		1108	$self->{term}{_hook}[$htype]{$pkg} = $cb;
		1109	}
		1110	}
		1111
		1112	sub disable {
		1113	my ($self, @hook) = @_;
		1114	my $pkg = $self->{_pkg};
		1115
		1116	for my $name (@hook) {
		1117	my $htype = $HOOKTYPE{uc $name};
		1118	defined $htype
		1119	or Carp::croak "unsupported hook type '$name'";
		1120
		1121	$self->set_should_invoke ($htype, -1)
		1122	if delete $self->{term}{_hook}[$htype]{$pkg};
		1123	}
		1124	}
		1125
		1126	our $AUTOLOAD;
		1127
		1128	sub AUTOLOAD {
		1129	$AUTOLOAD =~ /:([^:]+)$/
519	or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";	1130	or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
520		1131
521	eval qq{	1132	eval qq{
522	sub $urxvt::term::proxy::AUTOLOAD {	1133	sub $AUTOLOAD {
523	my \$proxy = shift;	1134	my \$proxy = shift;
524	\$proxy->{term}->$1 (\@_)	1135	\$proxy->{term}->$1 (\@_)
525	}	1136	}
526	1	1137	1
527	} or die "FATAL: unable to compile method forwarder: $@";	1138	} or die "FATAL: unable to compile method forwarder: $@";
528		1139
529	goto &$urxvt::term::proxy::AUTOLOAD;	1140	goto &$AUTOLOAD;
530	}	1141	}
		1142
		1143	sub DESTROY {
		1144	# nop
		1145	}
		1146
		1147	# urxvt::destroy_hook
		1148
		1149	sub urxvt::destroy_hook::DESTROY {
		1150	${$_[0]}->();
		1151	}
		1152
		1153	sub urxvt::destroy_hook(&) {
		1154	bless \shift, urxvt::destroy_hook::
		1155	}
		1156
		1157	package urxvt::anyevent;
		1158
		1159	=head2 The C<urxvt::anyevent> Class
		1160
		1161	The sole purpose of this class is to deliver an interface to the
		1162	C<AnyEvent> module - any module using it will work inside urxvt without
		1163	further programming. The only exception is that you cannot wait on
		1164	condition variables, but non-blocking condvar use is ok. What this means
		1165	is that you cannot use blocking APIs, but the non-blocking variant should
		1166	work.
		1167
		1168	=cut
		1169
		1170	our $VERSION = '5.23';
		1171
		1172	$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
		1173	push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
		1174
		1175	sub timer {
		1176	my ($class, %arg) = @_;
		1177
		1178	my $cb = $arg{cb};
		1179
		1180	urxvt::timer
		1181	->new
		1182	->after ($arg{after}, $arg{interval})
		1183	->cb ($arg{interval} ? $cb : sub {
		1184	$_[0]->stop; # need to cancel manually
		1185	$cb->();
		1186	})
		1187	}
		1188
		1189	sub io {
		1190	my ($class, %arg) = @_;
		1191
		1192	my $cb = $arg{cb};
		1193	my $fd = fileno $arg{fh};
		1194	defined $fd or $fd = $arg{fh};
		1195
		1196	bless [$arg{fh}, urxvt::iow
		1197	->new
		1198	->fd ($fd)
		1199	->events (($arg{poll} =~ /r/ ? 1 : 0)
		1200	| ($arg{poll} =~ /w/ ? 2 : 0))
		1201	->start
		1202	->cb ($cb)
		1203	], urxvt::anyevent::
		1204	}
		1205
		1206	sub idle {
		1207	my ($class, %arg) = @_;
		1208
		1209	my $cb = $arg{cb};
		1210
		1211	urxvt::iw
		1212	->new
		1213	->start
		1214	->cb ($cb)
		1215	}
		1216
		1217	sub child {
		1218	my ($class, %arg) = @_;
		1219
		1220	my $cb = $arg{cb};
		1221
		1222	urxvt::pw
		1223	->new
		1224	->start ($arg{pid})
		1225	->cb (sub {
		1226	$_[0]->stop; # need to cancel manually
		1227	$cb->($_[0]->rpid, $_[0]->rstatus);
		1228	})
		1229	}
		1230
		1231	sub DESTROY {
		1232	$_[0][1]->stop;
		1233	}
		1234
		1235	# only needed for AnyEvent < 6 compatibility
		1236	sub one_event {
		1237	Carp::croak "AnyEvent->one_event blocking wait unsupported in urxvt, use a non-blocking API";
		1238	}
		1239
		1240	package urxvt::term;
531		1241
532	=head2 The C<urxvt::term> Class	1242	=head2 The C<urxvt::term> Class
533		1243
534	=over 4	1244	=over 4
535		1245
		1246	=cut
		1247
		1248	# find on_xxx subs in the package and register them
		1249	# as hooks
		1250	sub register_package {
		1251	my ($self, $pkg, $argv) = @_;
		1252
		1253	no strict 'refs';
		1254
		1255	urxvt::verbose 6, "register package $pkg to $self";
		1256
		1257	@{"$pkg\::ISA"} = urxvt::term::extension::;
		1258
		1259	my $proxy = bless {
		1260	_pkg => $pkg,
		1261	argv => $argv,
		1262	}, $pkg;
		1263	Scalar::Util::weaken ($proxy->{term} = $self);
		1264
		1265	$self->{_pkg}{$pkg} = $proxy;
		1266
		1267	for my $name (@HOOKNAME) {
		1268	if (my $ref = $pkg->can ("on_" . lc $name)) {
		1269	$proxy->enable ($name => $ref);
		1270	}
		1271	}
		1272	}
		1273
		1274	=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
		1275
		1276	Creates a new terminal, very similar as if you had started it with system
		1277	C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
		1278	hash which defines the environment of the new terminal.
		1279
		1280	Croaks (and probably outputs an error message) if the new instance
		1281	couldn't be created. Returns C<undef> if the new instance didn't
		1282	initialise perl, and the terminal object otherwise. The C<init> and
		1283	C<start> hooks will be called before this call returns, and are free to
		1284	refer to global data (which is race free).
		1285
		1286	=cut
		1287
		1288	sub new {
		1289	my ($class, $env, @args) = @_;
		1290
		1291	$env or Carp::croak "environment hash missing in call to urxvt::term->new";
		1292	@args or Carp::croak "name argument missing in call to urxvt::term->new";
		1293
		1294	_new ([ map "$_=$env->{$_}", keys %$env ], \@args);
		1295	}
		1296
536	=item $term->destroy	1297	=item $term->destroy
537		1298
538	Destroy the terminal object (close the window, free resources etc.).	1299	Destroy the terminal object (close the window, free resources
		1300	etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
		1301	watchers (timers, io watchers) are still active.
		1302
		1303	=item $term->exec_async ($cmd[, @args])
		1304
		1305	Works like the combination of the C<fork>/C<exec> builtins, which executes
		1306	("starts") programs in the background. This function takes care of setting
		1307	the user environment before exec'ing the command (e.g. C<PATH>) and should
		1308	be preferred over explicit calls to C<exec> or C<system>.
		1309
		1310	Returns the pid of the subprocess or C<undef> on error.
		1311
		1312	=cut
		1313
		1314	sub exec_async {
		1315	my $self = shift;
		1316
		1317	my $pid = fork;
		1318
		1319	return $pid
		1320	if !defined $pid or $pid;
		1321
		1322	%ENV = %{ $self->env };
		1323
		1324	exec @_;
		1325	urxvt::_exit 255;
		1326	}
		1327
		1328	=item $isset = $term->option ($optval[, $set])
		1329
		1330	Returns true if the option specified by C<$optval> is enabled, and
		1331	optionally change it. All option values are stored by name in the hash
		1332	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
		1333
		1334	Here is a likely non-exhaustive list of option names, please see the
		1335	source file F</src/optinc.h> to see the actual list:
		1336
		1337	borderLess buffered console cursorBlink cursorUnderline hold iconic
		1338	insecure intensityStyles iso14755 iso14755_52 jumpScroll loginShell
		1339	mapAlert meta8 mouseWheelScrollPage override_redirect pastableTabs
		1340	pointerBlank reverseVideo scrollBar scrollBar_floating scrollBar_right
		1341	scrollTtyKeypress scrollTtyOutput scrollWithBuffer secondaryScreen
		1342	secondaryScroll skipBuiltinGlyphs skipScroll transparent tripleclickwords
		1343	urgentOnBell utmpInhibit visualBell
539		1344
540	=item $value = $term->resource ($name[, $newval])	1345	=item $value = $term->resource ($name[, $newval])
541		1346
542	Returns the current resource value associated with a given name and	1347	Returns the current resource value associated with a given name and
543	optionally sets a new value. Setting values is most useful in the C<init>	1348	optionally sets a new value. Setting values is most useful in the C<init>
…		…
552	likely change).	1357	likely change).
553		1358
554	Please note that resource strings will currently only be freed when the	1359	Please note that resource strings will currently only be freed when the
555	terminal is destroyed, so changing options frequently will eat memory.	1360	terminal is destroyed, so changing options frequently will eat memory.
556		1361
557	Here is a a likely non-exhaustive list of resource names, not all of which	1362	Here is a likely non-exhaustive list of resource names, not all of which
558	are supported in every build, please see the source to see the actual	1363	are supported in every build, please see the source file F</src/rsinc.h>
559	list:	1364	to see the actual list:
560		1365
561	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont	1366	answerbackstring backgroundPixmap backspace_key blendtype blurradius
562	borderLess color cursorBlink cursorUnderline cutchars delete_key	1367	boldFont boldItalicFont borderLess buffered chdir color cursorBlink
563	display_name embed ext_bwidth fade font geometry hold iconName	1368	cursorUnderline cutchars delete_key depth display_name embed ext_bwidth
564	imFont imLocale inputMethod insecure int_bwidth intensityStyles	1369	fade font geometry hold iconName iconfile imFont imLocale inputMethod
		1370	insecure int_bwidth intensityStyles iso14755 iso14755_52 italicFont
565	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier	1371	jumpScroll letterSpace lineSpace loginShell mapAlert meta8 modifier
566	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2	1372	mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
567	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd	1373	perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
568	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating	1374	preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
569	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput	1375	scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
570	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle	1376	scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
571	shade term_name title transparent transparent_all tripleclickwords	1377	secondaryScreen secondaryScroll shade skipBuiltinGlyphs skipScroll
		1378	term_name title transient_for transparent tripleclickwords urgentOnBell
572	utmpInhibit visualBell	1379	utmpInhibit visualBell
573		1380
574	=cut	1381	=cut
575		1382
576	sub urxvt::term::resource($$;$) {	1383	sub resource($$;$) {
577	my ($self, $name) = (shift, shift);	1384	my ($self, $name) = (shift, shift);
578	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);	1385	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
579	goto &urxvt::term::_resource;	1386	goto &urxvt::term::_resource
580	}	1387	}
		1388
		1389	=item $value = $term->x_resource ($pattern)
		1390
		1391	Returns the X-Resource for the given pattern, excluding the program or
		1392	class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
		1393	same value as used by this instance of rxvt-unicode. Returns C<undef> if no
		1394	resource with that pattern exists.
		1395
		1396	This method should only be called during the C<on_start> hook, as there is
		1397	only one resource database per display, and later invocations might return
		1398	the wrong resources.
		1399
		1400	=item $success = $term->parse_keysym ($key, $octets)
		1401
		1402	Adds a key binding exactly as specified via a resource. See the
		1403	C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
		1404
		1405	=item $term->register_command ($keysym, $modifiermask, $string)
		1406
		1407	Adds a key binding. This is a lower level api compared to
		1408	C<parse_keysym>, as it expects a parsed key description, and can be
		1409	used only inside either the C<on_init> hook, to add a binding, or the
		1410	C<on_register_command> hook, to modify a parsed binding.
581		1411
582	=item $rend = $term->rstyle ([$new_rstyle])	1412	=item $rend = $term->rstyle ([$new_rstyle])
583		1413
584	Return and optionally change the current rendition. Text that is output by	1414	Return and optionally change the current rendition. Text that is output by
585	the terminal application will use this style.	1415	the terminal application will use this style.
…		…
593		1423
594	=item ($row, $col) = $term->selection_beg ([$row, $col])	1424	=item ($row, $col) = $term->selection_beg ([$row, $col])
595		1425
596	=item ($row, $col) = $term->selection_end ([$row, $col])	1426	=item ($row, $col) = $term->selection_end ([$row, $col])
597		1427
598	Return the current values of the selection mark, begin or end positions,	1428	Return the current values of the selection mark, begin or end positions.
599	and optionally set them to new values.
600		1429
		1430	When arguments are given, then the selection coordinates are set to
		1431	C<$row> and C<$col>, and the selection screen is set to the current
		1432	screen.
		1433
		1434	=item $screen = $term->selection_screen ([$screen])
		1435
		1436	Returns the current selection screen, and then optionally sets it.
		1437
		1438	=item $term->selection_make ($eventtime[, $rectangular])
		1439
		1440	Tries to make a selection as set by C<selection_beg> and
		1441	C<selection_end>. If C<$rectangular> is true (default: false), a
		1442	rectangular selection will be made. This is the preferred function to make
		1443	a selection.
		1444
601	=item $success = $term->selection_grab ($eventtime)	1445	=item $success = $term->selection_grab ($eventtime[, $clipboard])
602		1446
603	Try to request the primary selection from the server (for example, as set	1447	Try to acquire ownership of the primary (clipboard if C<$clipboard> is
604	by the next method).	1448	true) selection from the server. The corresponding text can be set
		1449	with the next method. No visual feedback will be given. This function
		1450	is mostly useful from within C<on_sel_grab> hooks.
605		1451
606	=item $oldtext = $term->selection ([$newtext])	1452	=item $oldtext = $term->selection ([$newtext, $clipboard])
607		1453
608	Return the current selection text and optionally replace it by C<$newtext>.	1454	Return the current selection (clipboard if C<$clipboard> is true) text
		1455	and optionally replace it by C<$newtext>.
609		1456
		1457	=item $term->selection_clear ([$clipboard])
		1458
		1459	Revoke ownership of the primary (clipboard if C<$clipboard> is true) selection.
		1460
610	#=item $term->overlay ($x, $y, $text)	1461	=item $term->overlay_simple ($x, $y, $text)
611	#	1462
612	#Create a simple multi-line overlay box. See the next method for details.	1463	Create a simple multi-line overlay box. See the next method for details.
613	#	1464
614	#=cut	1465	=cut
615	#	1466
616	#sub urxvt::term::scr_overlay {	1467	sub overlay_simple {
617	# my ($self, $x, $y, $text) = @_;	1468	my ($self, $x, $y, $text) = @_;
618	#	1469
619	# my @lines = split /\n/, $text;	1470	my @lines = split /\n/, $text;
620	#	1471
621	# my $w = 0;	1472	my $w = List::Util::max map $self->strwidth ($_), @lines;
622	# for (map $self->strwidth ($_), @lines) {	1473
623	# $w = $_ if $w < $_;
624	# }
625	#
626	# $self->scr_overlay_new ($x, $y, $w, scalar @lines);	1474	my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
627	# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;	1475	$overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
628	#}	1476
		1477	$overlay
		1478	}
629		1479
630	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])	1480	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
631		1481
632	Create a new (empty) overlay at the given position with the given	1482	Create a new (empty) overlay at the given position with the given
633	width/height. C<$rstyle> defines the initial rendition style	1483	width/height. C<$rstyle> defines the initial rendition style
…		…
644		1494
645	The methods currently supported on C<urxvt::overlay> objects are:	1495	The methods currently supported on C<urxvt::overlay> objects are:
646		1496
647	=over 4	1497	=over 4
648		1498
649	=item $overlay->set ($x, $y, $text, $rend)	1499	=item $overlay->set ($x, $y, $text[, $rend])
650		1500
651	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts	1501	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts
652	text in rxvt-unicode's special encoding and an array of rendition values	1502	text in rxvt-unicode's special encoding and an array of rendition values
653	at a specific position inside the overlay.	1503	at a specific position inside the overlay.
654		1504
		1505	If C<$rend> is missing, then the rendition will not be changed.
		1506
655	=item $overlay->hide	1507	=item $overlay->hide
656		1508
657	If visible, hide the overlay, but do not destroy it.	1509	If visible, hide the overlay, but do not destroy it.
658		1510
659	=item $overlay->show	1511	=item $overlay->show
660		1512
661	If hidden, display the overlay again.	1513	If hidden, display the overlay again.
662		1514
663	=back	1515	=back
664		1516
		1517	=item $popup = $term->popup ($event)
		1518
		1519	Creates a new C<urxvt::popup> object that implements a popup menu. The
		1520	C<$event> I<must> be the event causing the menu to pop up (a button event,
		1521	currently).
		1522
		1523	=cut
		1524
		1525	sub popup {
		1526	my ($self, $event) = @_;
		1527
		1528	$self->grab ($event->{time}, 1)
		1529	or return;
		1530
		1531	my $popup = bless {
		1532	term => $self,
		1533	event => $event,
		1534	}, urxvt::popup::;
		1535
		1536	Scalar::Util::weaken $popup->{term};
		1537
		1538	$self->{_destroy}{$popup} = urxvt::destroy_hook { $popup->{popup}->destroy };
		1539	Scalar::Util::weaken $self->{_destroy}{$popup};
		1540
		1541	$popup
		1542	}
		1543
665	=item $cellwidth = $term->strwidth $string	1544	=item $cellwidth = $term->strwidth ($string)
666		1545
667	Returns the number of screen-cells this string would need. Correctly	1546	Returns the number of screen-cells this string would need. Correctly
668	accounts for wide and combining characters.	1547	accounts for wide and combining characters.
669		1548
670	=item $octets = $term->locale_encode $string	1549	=item $octets = $term->locale_encode ($string)
671		1550
672	Convert the given text string into the corresponding locale encoding.	1551	Convert the given text string into the corresponding locale encoding.
673		1552
674	=item $string = $term->locale_decode $octets	1553	=item $string = $term->locale_decode ($octets)
675		1554
676	Convert the given locale-encoded octets into a perl string.	1555	Convert the given locale-encoded octets into a perl string.
		1556
		1557	=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
		1558
		1559	XORs the rendition values in the given span with the provided value
		1560	(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
		1561	refresh hooks to provide effects similar to the selection.
		1562
		1563	=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
		1564
		1565	Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
		1566	whitespace will additionally be xored with the C<$rstyle2>, which defaults
		1567	to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
		1568	it instead. Both styles I<MUST NOT> contain font styles.
		1569
		1570	=item $term->scr_bell
		1571
		1572	Ring the bell!
677		1573
678	=item $term->scr_add_lines ($string)	1574	=item $term->scr_add_lines ($string)
679		1575
680	Write the given text string to the screen, as if output by the application	1576	Write the given text string to the screen, as if output by the application
681	running inside the terminal. It may not contain command sequences (escape	1577	running inside the terminal. It may not contain command sequences (escape
…		…
684		1580
685	Normally its not a good idea to use this function, as programs might be	1581	Normally its not a good idea to use this function, as programs might be
686	confused by changes in cursor position or scrolling. Its useful inside a	1582	confused by changes in cursor position or scrolling. Its useful inside a
687	C<on_add_lines> hook, though.	1583	C<on_add_lines> hook, though.
688		1584
		1585	=item $term->scr_change_screen ($screen)
		1586
		1587	Switch to given screen - 0 primary, 1 secondary.
		1588
689	=item $term->cmd_parse ($octets)	1589	=item $term->cmd_parse ($octets)
690		1590
691	Similar to C<scr_add_lines>, but the argument must be in the	1591	Similar to C<scr_add_lines>, but the argument must be in the
692	locale-specific encoding of the terminal and can contain command sequences	1592	locale-specific encoding of the terminal and can contain command sequences
693	(escape codes) that will be interpreted.	1593	(escape codes) that will be interpreted.
694		1594
695	=item $term->tt_write ($octets)	1595	=item $term->tt_write ($octets)
696		1596
697	Write the octets given in C<$data> to the tty (i.e. as program input). To	1597	Write the octets given in C<$octets> to the tty (i.e. as program input). To
698	pass characters instead of octets, you should convert your strings first	1598	pass characters instead of octets, you should convert your strings first
699	to the locale-specific encoding using C<< $term->locale_encode >>.	1599	to the locale-specific encoding using C<< $term->locale_encode >>.
700		1600
		1601	=item $term->tt_paste ($octets)
		1602
		1603	Write the octets given in C<$octets> to the tty as a paste, converting NL to
		1604	CR and bracketing the data with control sequences if bracketed paste mode
		1605	is set.
		1606
		1607	=item $old_events = $term->pty_ev_events ([$new_events])
		1608
		1609	Replaces the event mask of the pty watcher by the given event mask. Can
		1610	be used to suppress input and output handling to the pty/tty. See the
		1611	description of C<< urxvt::timer->events >>. Make sure to always restore
		1612	the previous value.
		1613
		1614	=item $fd = $term->pty_fd
		1615
		1616	Returns the master file descriptor for the pty in use, or C<-1> if no pty
		1617	is used.
		1618
		1619	=item $windowid = $term->parent
		1620
		1621	Return the window id of the toplevel window.
		1622
		1623	=item $windowid = $term->vt
		1624
		1625	Return the window id of the terminal window.
		1626
		1627	=item $term->vt_emask_add ($x_event_mask)
		1628
		1629	Adds the specified events to the vt event mask. Useful e.g. when you want
		1630	to receive pointer events all the times:
		1631
		1632	$term->vt_emask_add (urxvt::PointerMotionMask);
		1633
		1634	=item $term->focus_in
		1635
		1636	=item $term->focus_out
		1637
		1638	=item $term->key_press ($state, $keycode[, $time])
		1639
		1640	=item $term->key_release ($state, $keycode[, $time])
		1641
		1642	Deliver various fake events to to terminal.
		1643
701	=item $window_width = $term->width	1644	=item $window_width = $term->width
702		1645
703	=item $window_height = $term->height	1646	=item $window_height = $term->height
704		1647
705	=item $font_width = $term->fwidth	1648	=item $font_width = $term->fwidth
…		…
718		1661
719	=item $max_scrollback = $term->saveLines	1662	=item $max_scrollback = $term->saveLines
720		1663
721	=item $nrow_plus_saveLines = $term->total_rows	1664	=item $nrow_plus_saveLines = $term->total_rows
722		1665
723	=item $lines_in_scrollback = $term->nsaved	1666	=item $topmost_scrollback_row = $term->top_row
724		1667
725	Return various integers describing terminal characteristics.	1668	Return various integers describing terminal characteristics.
726		1669
		1670	=item $x_display = $term->display_id
		1671
		1672	Return the DISPLAY used by rxvt-unicode.
		1673
		1674	=item $lc_ctype = $term->locale
		1675
		1676	Returns the LC_CTYPE category string used by this rxvt-unicode.
		1677
		1678	=item $env = $term->env
		1679
		1680	Returns a copy of the environment in effect for the terminal as a hashref
		1681	similar to C<\%ENV>.
		1682
		1683	=item @envv = $term->envv
		1684
		1685	Returns the environment as array of strings of the form C<VAR=VALUE>.
		1686
		1687	=item @argv = $term->argv
		1688
		1689	Return the argument vector as this terminal, similar to @ARGV, but
		1690	includes the program name as first element.
		1691
		1692	=cut
		1693
		1694	sub env {
		1695	+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), $_[0]->envv }
		1696	}
		1697
		1698	=item $modifiermask = $term->ModLevel3Mask
		1699
		1700	=item $modifiermask = $term->ModMetaMask
		1701
		1702	=item $modifiermask = $term->ModNumLockMask
		1703
		1704	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
		1705	AltGr), the meta key (often Alt) and the num lock key, if applicable.
		1706
		1707	=item $screen = $term->current_screen
		1708
		1709	Returns the currently displayed screen (0 primary, 1 secondary).
		1710
		1711	=item $cursor_is_hidden = $term->hidden_cursor
		1712
		1713	Returns whether the cursor is currently hidden or not.
		1714
727	=item $view_start = $term->view_start ([$newvalue])	1715	=item $view_start = $term->view_start ([$newvalue])
728		1716
729	Returns the negative row number of the topmost line. Minimum value is	1717	Returns the row number of the topmost displayed line. Maximum value is
730	C<0>, which displays the normal terminal contents. Larger values scroll	1718	C<0>, which displays the normal terminal contents. Lower values scroll
731	this many lines into the scrollback buffer.	1719	this many lines into the scrollback buffer.
732		1720
733	=item $term->want_refresh	1721	=item $term->want_refresh
734		1722
735	Requests a screen refresh. At the next opportunity, rxvt-unicode will	1723	Requests a screen refresh. At the next opportunity, rxvt-unicode will
…		…
738		1726
739	Used after changing terminal contents to display them.	1727	Used after changing terminal contents to display them.
740		1728
741	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])	1729	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
742		1730
743	Returns the text of the entire row with number C<$row_number>. Row C<0>	1731	Returns the text of the entire row with number C<$row_number>. Row C<< $term->top_row >>
744	is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost	1732	is the topmost terminal line, row C<< $term->nrow-1 >> is the bottommost
745	terminal line. The scrollback buffer starts at line C<-1> and extends to
746	line C<< -$term->nsaved >>. Nothing will be returned if a nonexistent line	1733	terminal line. Nothing will be returned if a nonexistent line
747	is requested.	1734	is requested.
748		1735
749	If C<$new_text> is specified, it will replace characters in the current	1736	If C<$new_text> is specified, it will replace characters in the current
750	line, starting at column C<$start_col> (default C<0>), which is useful	1737	line, starting at column C<$start_col> (default C<0>), which is useful
751	to replace only parts of a line. The font index in the rendition will	1738	to replace only parts of a line. The font index in the rendition will
752	automatically be updated.	1739	automatically be updated.
753		1740
754	C<$text> is in a special encoding: tabs and wide characters that use more	1741	C<$text> is in a special encoding: tabs and wide characters that use more
755	than one cell when displayed are padded with urxvt::NOCHAR characters	1742	than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
756	(C<chr 65535>). Characters with combining characters and other characters	1743	characters. Characters with combining characters and other characters that
757	that do not fit into the normal tetx encoding will be replaced with	1744	do not fit into the normal text encoding will be replaced with characters
758	characters in the private use area.	1745	in the private use area.
759		1746
760	You have to obey this encoding when changing text. The advantage is	1747	You have to obey this encoding when changing text. The advantage is
761	that C<substr> and similar functions work on screen cells and not on	1748	that C<substr> and similar functions work on screen cells and not on
762	characters.	1749	characters.
763		1750
…		…
814	Return the row number of the first/last row of the line, respectively.	1801	Return the row number of the first/last row of the line, respectively.
815		1802
816	=item $offset = $line->offset_of ($row, $col)	1803	=item $offset = $line->offset_of ($row, $col)
817		1804
818	Returns the character offset of the given row|col pair within the logical	1805	Returns the character offset of the given row|col pair within the logical
819	line.	1806	line. Works for rows outside the line, too, and returns corresponding
		1807	offsets outside the string.
820		1808
821	=item ($row, $col) = $line->coord_of ($offset)	1809	=item ($row, $col) = $line->coord_of ($offset)
822		1810
823	Translates a string offset into terminal coordinates again.	1811	Translates a string offset into terminal coordinates again.
824		1812
825	=back	1813	=back
826		1814
827	=cut	1815	=cut
828		1816
829	sub urxvt::term::line {	1817	sub line {
830	my ($self, $row) = @_;	1818	my ($self, $row) = @_;
831		1819
832	my $maxrow = $self->nrow - 1;	1820	my $maxrow = $self->nrow - 1;
833		1821
834	my ($beg, $end) = ($row, $row);	1822	my ($beg, $end) = ($row, $row);
…		…
898	$offset / $self->{ncol} + $self->{beg},	1886	$offset / $self->{ncol} + $self->{beg},
899	$offset % $self->{ncol}	1887	$offset % $self->{ncol}
900	)	1888	)
901	}	1889	}
902		1890
903	=item ($row, $col) = $line->coord_of ($offset)
904	=item $text = $term->special_encode $string	1891	=item $text = $term->special_encode $string
905		1892
906	Converts a perl string into the special encoding used by rxvt-unicode,	1893	Converts a perl string into the special encoding used by rxvt-unicode,
907	where one character corresponds to one screen cell. See	1894	where one character corresponds to one screen cell. See
908	C<< $term->ROW_t >> for details.	1895	C<< $term->ROW_t >> for details.
909		1896
910	=item $string = $term->special_decode $text	1897	=item $string = $term->special_decode $text
911		1898
912	Converts rxvt-unicodes text reprsentation into a perl string. See	1899	Converts rxvt-unicodes text representation into a perl string. See
913	C<< $term->ROW_t >> for details.	1900	C<< $term->ROW_t >> for details.
914		1901
		1902	=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
		1903
		1904	=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
		1905
		1906	Register/unregister a synchronous button grab. See the XGrabButton
		1907	manpage.
		1908
		1909	=item $success = $term->grab ($eventtime[, $sync])
		1910
		1911	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
		1912	synchronous (C<$sync> is true). Also remembers the grab timestamp.
		1913
		1914	=item $term->allow_events_async
		1915
		1916	Calls XAllowEvents with AsyncBoth for the most recent grab.
		1917
		1918	=item $term->allow_events_sync
		1919
		1920	Calls XAllowEvents with SyncBoth for the most recent grab.
		1921
		1922	=item $term->allow_events_replay
		1923
		1924	Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
		1925	recent grab.
		1926
		1927	=item $term->ungrab
		1928
		1929	Calls XUngrabPointer and XUngrabKeyboard for the most recent grab. Is called automatically on
		1930	evaluation errors, as it is better to lose the grab in the error case as
		1931	the session.
		1932
		1933	=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
		1934
		1935	=item $atom_name = $term->XGetAtomName ($atom)
		1936
		1937	=item @atoms = $term->XListProperties ($window)
		1938
		1939	=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
		1940
		1941	=item $term->XChangeProperty ($window, $property, $type, $format, $octets)
		1942
		1943	=item $term->XDeleteProperty ($window, $property)
		1944
		1945	=item $window = $term->DefaultRootWindow
		1946
		1947	=item $term->XReparentWindow ($window, $parent, [$x, $y])
		1948
		1949	=item $term->XMapWindow ($window)
		1950
		1951	=item $term->XUnmapWindow ($window)
		1952
		1953	=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
		1954
		1955	=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
		1956
		1957	=item $term->XChangeInput ($window, $add_events[, $del_events])
		1958
		1959	=item $keysym = $term->XStringToKeysym ($string)
		1960
		1961	=item $string = $term->XKeysymToString ($keysym)
		1962
		1963	Various X or X-related functions. The C<$term> object only serves as
		1964	the source of the display, otherwise those functions map more-or-less
		1965	directly onto the X functions of the same name.
		1966
915	=back	1967	=back
		1968
		1969	=cut
		1970
		1971	package urxvt::popup;
		1972
		1973	=head2 The C<urxvt::popup> Class
		1974
		1975	=over 4
		1976
		1977	=cut
		1978
		1979	sub add_item {
		1980	my ($self, $item) = @_;
		1981
		1982	$item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal};
		1983	$item->{rend}{hover} = "\x1b[0;30;46m" unless exists $item->{rend}{hover};
		1984	$item->{rend}{active} = "\x1b[m" unless exists $item->{rend}{active};
		1985
		1986	$item->{render} ||= sub { $_[0]{text} };
		1987
		1988	push @{ $self->{item} }, $item;
		1989	}
		1990
		1991	=item $popup->add_title ($title)
		1992
		1993	Adds a non-clickable title to the popup.
		1994
		1995	=cut
		1996
		1997	sub add_title {
		1998	my ($self, $title) = @_;
		1999
		2000	$self->add_item ({
		2001	rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
		2002	text => $title,
		2003	activate => sub { },
		2004	});
		2005	}
		2006
		2007	=item $popup->add_separator ([$sepchr])
		2008
		2009	Creates a separator, optionally using the character given as C<$sepchr>.
		2010
		2011	=cut
		2012
		2013	sub add_separator {
		2014	my ($self, $sep) = @_;
		2015
		2016	$sep ||= "=";
		2017
		2018	$self->add_item ({
		2019	rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
		2020	text => "",
		2021	render => sub { $sep x $self->{term}->ncol },
		2022	activate => sub { },
		2023	});
		2024	}
		2025
		2026	=item $popup->add_button ($text, $cb)
		2027
		2028	Adds a clickable button to the popup. C<$cb> is called whenever it is
		2029	selected.
		2030
		2031	=cut
		2032
		2033	sub add_button {
		2034	my ($self, $text, $cb) = @_;
		2035
		2036	$self->add_item ({ type => "button", text => $text, activate => $cb});
		2037	}
		2038
		2039	=item $popup->add_toggle ($text, $initial_value, $cb)
		2040
		2041	Adds a toggle/checkbox item to the popup. The callback gets called
		2042	whenever it gets toggled, with a boolean indicating its new value as its
		2043	first argument.
		2044
		2045	=cut
		2046
		2047	sub add_toggle {
		2048	my ($self, $text, $value, $cb) = @_;
		2049
		2050	my $item; $item = {
		2051	type => "button",
		2052	text => " $text",
		2053	value => $value,
		2054	render => sub { ($_[0]{value} ? "* " : " ") . $text },
		2055	activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
		2056	};
		2057
		2058	$self->add_item ($item);
		2059	}
		2060
		2061	=item $popup->show
		2062
		2063	Displays the popup (which is initially hidden).
		2064
		2065	=cut
		2066
		2067	sub show {
		2068	my ($self) = @_;
		2069
		2070	local $urxvt::popup::self = $self;
		2071
		2072	my $env = $self->{term}->env;
		2073	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
		2074	delete $env->{LC_ALL};
		2075	$env->{LC_CTYPE} = $self->{term}->locale;
		2076
		2077	my $term = urxvt::term->new (
		2078	$env, "popup",
		2079	"--perl-lib" => "", "--perl-ext-common" => "",
		2080	"-pty-fd" => -1, "-sl" => 0,
		2081	"-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
		2082	"--transient-for" => $self->{term}->parent,
		2083	"-display" => $self->{term}->display_id,
		2084	"-pe" => "urxvt-popup",
		2085	) or die "unable to create popup window\n";
		2086
		2087	unless (delete $term->{urxvt_popup_init_done}) {
		2088	$term->ungrab;
		2089	$term->destroy;
		2090	die "unable to initialise popup window\n";
		2091	}
		2092	}
		2093
		2094	sub DESTROY {
		2095	my ($self) = @_;
		2096
		2097	delete $self->{term}{_destroy}{$self};
		2098	$self->{term}->ungrab;
		2099	}
		2100
		2101	=back
		2102
		2103	=cut
		2104
		2105	package urxvt::watcher;
916		2106
917	=head2 The C<urxvt::timer> Class	2107	=head2 The C<urxvt::timer> Class
918		2108
919	This class implements timer watchers/events. Time is represented as a	2109	This class implements timer watchers/events. Time is represented as a
920	fractional number of seconds since the epoch. Example:	2110	fractional number of seconds since the epoch. Example:
…		…
924	->new	2114	->new
925	->interval (1)	2115	->interval (1)
926	->cb (sub {	2116	->cb (sub {
927	$term->{overlay}->set (0, 0,	2117	$term->{overlay}->set (0, 0,
928	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);	2118	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
929	});	2119	});
930		2120
931	=over 4	2121	=over 4
932		2122
933	=item $timer = new urxvt::timer	2123	=item $timer = new urxvt::timer
934		2124
…		…
937		2127
938	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })	2128	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })
939		2129
940	Set the callback to be called when the timer triggers.	2130	Set the callback to be called when the timer triggers.
941		2131
942	=item $tstamp = $timer->at
943
944	Return the time this watcher will fire next.
945
946	=item $timer = $timer->set ($tstamp)	2132	=item $timer = $timer->set ($tstamp[, $interval])
947		2133
948	Set the time the event is generated to $tstamp.	2134	Set the time the event is generated to $tstamp (and optionally specifies a
		2135	new $interval).
949		2136
950	=item $timer = $timer->interval ($interval)	2137	=item $timer = $timer->interval ($interval)
951		2138
952	Normally (and when C<$interval> is C<0>), the timer will automatically	2139	By default (and when C<$interval> is C<0>), the timer will automatically
953	stop after it has fired once. If C<$interval> is non-zero, then the timer	2140	stop after it has fired once. If C<$interval> is non-zero, then the timer
954	is automatically rescheduled at the given intervals.	2141	is automatically rescheduled at the given intervals.
955		2142
956	=item $timer = $timer->start	2143	=item $timer = $timer->start
957		2144
958	Start the timer.	2145	Start the timer.
959		2146
960	=item $timer = $timer->start ($tstamp)	2147	=item $timer = $timer->start ($tstamp[, $interval])
961		2148
962	Set the event trigger time to C<$tstamp> and start the timer.	2149	Set the event trigger time to C<$tstamp> and start the timer. Optionally
		2150	also replaces the interval.
		2151
		2152	=item $timer = $timer->after ($delay[, $interval])
		2153
		2154	Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
963		2155
964	=item $timer = $timer->stop	2156	=item $timer = $timer->stop
965		2157
966	Stop the timer.	2158	Stop the timer.
967		2159
…		…
973		2165
974	$term->{socket} = ...	2166	$term->{socket} = ...
975	$term->{iow} = urxvt::iow	2167	$term->{iow} = urxvt::iow
976	->new	2168	->new
977	->fd (fileno $term->{socket})	2169	->fd (fileno $term->{socket})
978	->events (1) # wait for read data	2170	->events (urxvt::EV_READ)
979	->start	2171	->start
980	->cb (sub {	2172	->cb (sub {
981	my ($iow, $revents) = @_;	2173	my ($iow, $revents) = @_;
982	# $revents must be 1 here, no need to check	2174	# $revents must be 1 here, no need to check
983	sysread $term->{socket}, my $buf, 8192	2175	sysread $term->{socket}, my $buf, 8192
…		…
996	Set the callback to be called when io events are triggered. C<$reventmask>	2188	Set the callback to be called when io events are triggered. C<$reventmask>
997	is a bitset as described in the C<events> method.	2189	is a bitset as described in the C<events> method.
998		2190
999	=item $iow = $iow->fd ($fd)	2191	=item $iow = $iow->fd ($fd)
1000		2192
1001	Set the filedescriptor (not handle) to watch.	2193	Set the file descriptor (not handle) to watch.
1002		2194
1003	=item $iow = $iow->events ($eventmask)	2195	=item $iow = $iow->events ($eventmask)
1004		2196
1005	Set the event mask to watch. Bit #0 (value C<1>) enables watching for read	2197	Set the event mask to watch. The only allowed values are
1006	data, Bit #1 (value C<2>) enables watching for write data.	2198	C<urxvt::EV_READ> and C<urxvt::EV_WRITE>, which might be ORed
		2199	together, or C<urxvt::EV_NONE>.
1007		2200
1008	=item $iow = $iow->start	2201	=item $iow = $iow->start
1009		2202
1010	Start watching for requested events on the given handle.	2203	Start watching for requested events on the given handle.
1011		2204
1012	=item $iow = $iow->stop	2205	=item $iow = $iow->stop
1013		2206
1014	Stop watching for events on the given filehandle.	2207	Stop watching for events on the given file handle.
		2208
		2209	=back
		2210
		2211	=head2 The C<urxvt::iw> Class
		2212
		2213	This class implements idle watchers, that get called automatically when
		2214	the process is idle. They should return as fast as possible, after doing
		2215	some useful work.
		2216
		2217	=over 4
		2218
		2219	=item $iw = new urxvt::iw
		2220
		2221	Create a new idle watcher object in stopped state.
		2222
		2223	=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
		2224
		2225	Set the callback to be called when the watcher triggers.
		2226
		2227	=item $timer = $timer->start
		2228
		2229	Start the watcher.
		2230
		2231	=item $timer = $timer->stop
		2232
		2233	Stop the watcher.
		2234
		2235	=back
		2236
		2237	=head2 The C<urxvt::pw> Class
		2238
		2239	This class implements process watchers. They create an event whenever a
		2240	process exits, after which they stop automatically.
		2241
		2242	my $pid = fork;
		2243	...
		2244	$term->{pw} = urxvt::pw
		2245	->new
		2246	->start ($pid)
		2247	->cb (sub {
		2248	my ($pw, $exit_status) = @_;
		2249	...
		2250	});
		2251
		2252	=over 4
		2253
		2254	=item $pw = new urxvt::pw
		2255
		2256	Create a new process watcher in stopped state.
		2257
		2258	=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
		2259
		2260	Set the callback to be called when the timer triggers.
		2261
		2262	=item $pw = $timer->start ($pid)
		2263
		2264	Tells the watcher to start watching for process C<$pid>.
		2265
		2266	=item $pw = $pw->stop
		2267
		2268	Stop the watcher.
1015		2269
1016	=back	2270	=back
1017		2271
1018	=head1 ENVIRONMENT	2272	=head1 ENVIRONMENT
1019		2273
…		…
1022	This variable controls the verbosity level of the perl extension. Higher	2276	This variable controls the verbosity level of the perl extension. Higher
1023	numbers indicate more verbose output.	2277	numbers indicate more verbose output.
1024		2278
1025	=over 4	2279	=over 4
1026		2280
1027	=item =0 - only fatal messages	2281	=item == 0 - fatal messages
1028		2282
1029	=item =3 - script loading and management	2283	=item >= 3 - script loading and management
1030		2284
1031	=item =10 - all events received	2285	=item >=10 - all called hooks
		2286
		2287	=item >=11 - hook return values
1032		2288
1033	=back	2289	=back
1034		2290
1035	=head1 AUTHOR	2291	=head1 AUTHOR
1036		2292
1037	Marc Lehmann <pcg@goof.com>	2293	Marc Lehmann <schmorp@schmorp.de>
1038	http://software.schmorp.de/pkg/rxvt-unicode	2294	http://software.schmorp.de/pkg/rxvt-unicode
1039		2295
1040	=cut	2296	=cut
1041		2297
1042	1	2298	1
		2299
		2300	# vim: sw=3:

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