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Revision 1.45 by root, Sat Jan 7 20:23:52 2006 UTC vs.
Revision 1.154 by root, Sat Jun 2 06:43:02 2007 UTC

…		…
17		17
18	@@RXVT_NAME@@ --perl-lib $HOME -pe grab_test	18	@@RXVT_NAME@@ --perl-lib $HOME -pe grab_test
19		19
20	=head1 DESCRIPTION	20	=head1 DESCRIPTION
21		21
22	Everytime a terminal object gets created, extension scripts specified via	22	Every time a terminal object gets created, extension scripts specified via
23	the C<perl> resource are loaded and associated with it.	23	the C<perl> resource are loaded and associated with it.
24		24
25	Scripts are compiled in a 'use strict' and 'use utf8' environment, and	25	Scripts are compiled in a 'use strict' and 'use utf8' environment, and
26	thus must be encoded as UTF-8.	26	thus must be encoded as UTF-8.
27		27
28	Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where	28	Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where
29	scripts will be shared (but not enabled) for all terminals.	29	scripts will be shared (but not enabled) for all terminals.
30		30
31	=head2 Prepackaged Extensions	31	You can disable the embedded perl interpreter by setting both "perl-ext"
		32	and "perl-ext-common" resources to the empty string.
32		33
		34	=head1 PREPACKAGED EXTENSIONS
		35
33	This section describes the extensiosn delivered with this version. You can	36	This section describes the extensions delivered with this release. You can
34	find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.	37	find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.
35		38
36	You can activate them like this:	39	You can activate them like this:
37		40
38	@@RXVT_NAME@@ -pe <extensionname>	41	@@RXVT_NAME@@ -pe <extensionname>
39		42
		43	Or by adding them to the resource for extensions loaded by default:
		44
		45	URxvt.perl-ext-common: default,automove-background,selection-autotransform
		46
40	=over 4	47	=over 4
41		48
42	=item selection	49	=item selection (enabled by default)
43		50
44	Intelligent selection. This extension tries to be more intelligent when	51	(More) intelligent selection. This extension tries to be more intelligent
45	the user extends selections (double-click). Right now, it tries to select	52	when the user extends selections (double-click and further clicks). Right
46	urls and complete shell-quoted arguments, which is very convenient, too,	53	now, it tries to select words, urls and complete shell-quoted
47	if your F<ls> supports C<--quoting-style=shell>.	54	arguments, which is very convenient, too, if your F<ls> supports
		55	C<--quoting-style=shell>.
48		56
49	It also offers the following bindable event:	57	A double-click usually selects the word under the cursor, further clicks
		58	will enlarge the selection.
		59
		60	The selection works by trying to match a number of regexes and displaying
		61	them in increasing order of length. You can add your own regexes by
		62	specifying resources of the form:
		63
		64	URxvt.selection.pattern-0: perl-regex
		65	URxvt.selection.pattern-1: perl-regex
		66	...
		67
		68	The index number (0, 1...) must not have any holes, and each regex must
		69	contain at least one pair of capturing parentheses, which will be used for
		70	the match. For example, the following adds a regex that matches everything
		71	between two vertical bars:
		72
		73	URxvt.selection.pattern-0: \\|([^|]+)\\|
		74
		75	Another example: Programs I use often output "absolute path: " at the
		76	beginning of a line when they process multiple files. The following
		77	pattern matches the filename (note, there is a single space at the very
		78	end):
		79
		80	URxvt.selection.pattern-0: ^(/[^:]+):\
		81
		82	You can look at the source of the selection extension to see more
		83	interesting uses, such as parsing a line from beginning to end.
		84
		85	This extension also offers following bindable keyboard commands:
50		86
51	=over 4	87	=over 4
52		88
53	=item rot13	89	=item rot13
54		90
…		…
56		92
57	URxvt.keysym.C-M-r: perl:selection:rot13	93	URxvt.keysym.C-M-r: perl:selection:rot13
58		94
59	=back	95	=back
60		96
61	=item digital-clock	97	=item option-popup (enabled by default)
62		98
63	Displays a digital clock using the built-in overlay.	99	Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at
		100	runtime.
64		101
65	=item mark-urls	102	Other extensions can extend this popup menu by pushing a code reference
		103	onto C<@{ $term->{option_popup_hook} }>, which gets called whenever the
		104	popup is being displayed.
66		105
		106	It's sole argument is the popup menu, which can be modified. It should
		107	either return nothing or a string, the initial boolean value and a code
		108	reference. The string will be used as button text and the code reference
		109	will be called when the toggle changes, with the new boolean value as
		110	first argument.
		111
		112	The following will add an entry C<myoption> that changes
		113	C<$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<@{ $term->{selection_popup_hook} }>, which gets called whenever the
		127	popup is being displayed.
		128
		129	It's sole argument is the popup menu, which can be modified. The selection
		130	is in C<$_>, 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 be" => 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.
		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 (the this only works
		171	for programs that correctly support wide characters).
		172
		173	To avoid too many false positives, this is only done when:
		174
		175	=over 4
		176
		177	=item - the tty is in ICANON state.
		178
		179	=item - the text cursor is visible.
		180
		181	=item - the primary screen is currently being displayed.
		182
		183	=item - the mouse is on the same (multi-row-) line as the text cursor.
		184
		185	=back
		186
		187	The normal selection mechanism isn't disabled, so quick successive clicks
		188	might interfere with selection creation in harmless ways.
		189
		190	=item selection-autotransform
		191
		192	This selection allows you to do automatic transforms on a selection
		193	whenever a selection is made.
		194
		195	It works by specifying perl snippets (most useful is a single C<s///>
		196	operator) that modify C<$_> as resources:
		197
		198	URxvt.selection-autotransform.0: transform
		199	URxvt.selection-autotransform.1: transform
		200	...
		201
		202	For example, the following will transform selections of the form
		203	C<filename:number>, often seen in compiler messages, into C<vi +$filename
		204	$word>:
		205
		206	URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
		207
		208	And this example matches the same,but replaces it with vi-commands you can
		209	paste directly into your (vi :) editor:
		210
		211	URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
		212
		213	Of course, this can be modified to suit your needs and your editor :)
		214
		215	To expand the example above to typical perl error messages ("XXX at
		216	FILENAME line YYY."), you need a slightly more elaborate solution:
		217
		218	URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
		219	URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
		220
		221	The first line tells the selection code to treat the unchanging part of
		222	every error message as a selection pattern, and the second line transforms
		223	the message into vi commands to load the file.
		224
		225	=item tabbed
		226
		227	This transforms the terminal into a tabbar with additional terminals, that
		228	is, it implements what is commonly referred to as "tabbed terminal". The topmost line
		229	displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
		230	button per tab.
		231
		232	Clicking a button will activate that tab. Pressing B<Shift-Left> and
		233	B<Shift-Right> will switch to the tab left or right of the current one,
		234	while B<Shift-Down> creates a new tab.
		235
		236	The tabbar itself can be configured similarly to a normal terminal, but
		237	with a resource class of C<URxvt.tabbed>. In addition, it supports the
		238	following four resources (shown with defaults):
		239
		240	URxvt.tabbed.tabbar-fg: <colour-index, default 3>
		241	URxvt.tabbed.tabbar-bg: <colour-index, default 0>
		242	URxvt.tabbed.tab-fg: <colour-index, default 0>
		243	URxvt.tabbed.tab-bg: <colour-index, default 1>
		244
		245	See I<COLOR AND GRAPHICS> in the @@RXVT_NAME@@(1) manpage for valid
		246	indices.
		247
		248	=item matcher
		249
67	Uses per-line display filtering (C<on_line_update>) to underline urls.	250	Uses per-line display filtering (C<on_line_update>) to underline text
		251	matching a certain pattern and make it clickable. When clicked with the
		252	mouse button specified in the C<matcher.button> resource (default 2, or
		253	middle), the program specified in the C<matcher.launcher> resource
		254	(default, the C<urlLauncher> resource, C<sensible-browser>) will be started
		255	with the matched text as first argument. The default configuration is
		256	suitable for matching URLs and launching a web browser, like the
		257	former "mark-urls" extension.
		258
		259	The default pattern to match URLs can be overridden with the
		260	C<matcher.pattern.0> resource, and additional patterns can be specified
		261	with numbered patterns, in a manner similar to the "selection" extension.
		262	The launcher can also be overridden on a per-pattern basis.
		263
		264	Example configuration:
		265
		266	URxvt.perl-ext: default,matcher
		267	URxvt.urlLauncher: sensible-browser
		268	URxvt.keysym.C-Delete: perl:matcher
		269	URxvt.matcher.button: 1
		270	URxvt.matcher.pattern.1: \\bwww\\.[\\w-]+\\.[\\w./?&@#-]*[\\w/-]
		271	URxvt.matcher.pattern.2: \\B(/\\S+?):(\\d+)(?=:|$)
		272	URxvt.matcher.launcher.2: gvim +$2 $1
		273
		274	=item xim-onthespot
		275
		276	This (experimental) perl extension implements OnTheSpot editing. It does
		277	not work perfectly, and some input methods don't seem to work well with
		278	OnTheSpot editing in general, but it seems to work at leats for SCIM and
		279	kinput2.
		280
		281	You enable it by specifying this extension and a preedit style of
		282	C<OnTheSpot>, i.e.:
		283
		284	@@RXVT_NAME@@ -pt OnTheSpot -pe xim-onthespot
		285
		286	=item kuake<hotkey>
		287
		288	A very primitive quake-console-like extension. It was inspired by a
		289	description of how the programs C<kuake> and C<yakuake> work: Whenever the
		290	user presses a global accelerator key (by default C<F10>), the terminal
		291	will show or hide itself. Another press of the accelerator key will hide
		292	or show it again.
		293
		294	Initially, the window will not be shown when using this extension.
		295
		296	This is useful if you need a single terminal thats not using any desktop
		297	space most of the time but is quickly available at the press of a key.
		298
		299	The accelerator key is grabbed regardless of any modifiers, so this
		300	extension will actually grab a physical key just for this function.
		301
		302	If you want a quake-like animation, tell your window manager to do so
		303	(fvwm can do it).
		304
		305	=item automove-background
		306
		307	This is basically a very small extension that dynamically changes the
		308	background pixmap offset to the window position, in effect creating the
		309	same effect as pseudo transparency with a custom pixmap. No scaling is
		310	supported in this mode. Example:
		311
		312	@@RXVT_NAME@@ -pixmap background.xpm -pe automove-background
		313
		314	L<http://wiki.archlinux.org/index.php/Perl_Background_Rotation/Extensions>
		315	shows how this extension can be used to implement an automatically blurred
		316	transparent background.
68		317
69	=item block-graphics-to-ascii	318	=item block-graphics-to-ascii
70		319
71	A not very useful example of filtering all text output to the terminal,	320	A not very useful example of filtering all text output to the terminal
72	by replacing all line-drawing characters (U+2500 .. U+259F) by a	321	by replacing all line-drawing characters (U+2500 .. U+259F) by a
73	similar-looking ascii character.	322	similar-looking ascii character.
		323
		324	=item digital-clock
		325
		326	Displays a digital clock using the built-in overlay.
		327
		328	=item remote-clipboard
		329
		330	Somewhat of a misnomer, this extension adds two menu entries to the
		331	selection popup that allows one ti run external commands to store the
		332	selection somewhere and fetch it again.
		333
		334	We use it to implement a "distributed selection mechanism", which just
		335	means that one command uploads the file to a remote server, and another
		336	reads it.
		337
		338	The commands can be set using the C<URxvt.remote-selection.store> and
		339	C<URxvt.remote-selection.fetch> resources. The first should read the
		340	selection to store from STDIN (always in UTF-8), the second should provide
		341	the selection data on STDOUT (also in UTF-8).
		342
		343	The defaults (which are likely useless to you) use rsh and cat:
		344
		345	URxvt.remote-selection.store: rsh ruth 'cat >/tmp/distributed-selection'
		346	URxvt.remote-selection.fetch: rsh ruth 'cat /tmp/distributed-selection'
		347
		348	=item selection-pastebin
		349
		350	This is a little rarely useful extension that Uploads the selection as
		351	textfile to a remote site (or does other things). (The implementation is
		352	not currently secure for use in a multiuser environment as it writes to
		353	F</tmp> directly.).
		354
		355	It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
		356	i.e.
		357
		358	URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
		359
		360	Pressing this combination runs a command with C<%> replaced by the name of
		361	the textfile. This command can be set via a resource:
		362
		363	URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
		364
		365	And the default is likely not useful to anybody but the few people around
		366	here :)
		367
		368	The name of the textfile is the hex encoded md5 sum of the selection, so
		369	the same content should lead to the same filename.
		370
		371	After a successful upload the selection will be replaced by the text given
		372	in the C<selection-pastebin-url> resource (again, the % is the placeholder
		373	for the filename):
		374
		375	URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
		376
		377	I<Note to xrdb users:> xrdb uses the C preprocessor, which might interpret
		378	the double C</> characters as comment start. Use C<\057\057> instead,
		379	which works regardless of wether xrdb is used to parse the resource file
		380	or not.
74		381
75	=item example-refresh-hooks	382	=item example-refresh-hooks
76		383
77	Displays a very simple digital clock in the upper right corner of the	384	Displays a very simple digital clock in the upper right corner of the
78	window. Illustrates overwriting the refresh callbacks to create your own	385	window. Illustrates overwriting the refresh callbacks to create your own
79	overlays or changes.	386	overlays or changes.
80		387
81	=back	388	=back
		389
		390	=head1 API DOCUMENTATION
82		391
83	=head2 General API Considerations	392	=head2 General API Considerations
84		393
85	All objects (such as terminals, time watchers etc.) are typical	394	All objects (such as terminals, time watchers etc.) are typical
86	reference-to-hash objects. The hash can be used to store anything you	395	reference-to-hash objects. The hash can be used to store anything you
…		…
99	=over 4	408	=over 4
100		409
101	=item $text	410	=item $text
102		411
103	Rxvt-unicodes special way of encoding text, where one "unicode" character	412	Rxvt-unicodes special way of encoding text, where one "unicode" character
104	always represents one screen cell. See L<row_t> for a discussion of this format.	413	always represents one screen cell. See L<ROW_t> for a discussion of this format.
105		414
106	=item $string	415	=item $string
107		416
108	A perl text string, with an emphasis on I<text>. It can store all unicode	417	A perl text string, with an emphasis on I<text>. It can store all unicode
109	characters and is to be distinguished with text encoded in a specific	418	characters and is to be distinguished with text encoded in a specific
…		…
114	Either binary data or - more common - a text string encoded in a	423	Either binary data or - more common - a text string encoded in a
115	locale-specific way.	424	locale-specific way.
116		425
117	=back	426	=back
118		427
		428	=head2 Extension Objects
		429
		430	Every perl extension is a perl class. A separate perl object is created
		431	for each terminal, and each terminal has its own set of extenion objects,
		432	which are passed as the first parameter to hooks. So extensions can use
		433	their C<$self> object without having to think about clashes with other
		434	extensions or other terminals, with the exception of methods and members
		435	that begin with an underscore character C<_>: these are reserved for
		436	internal use.
		437
		438	Although it isn't a C<urxvt::term> object, you can call all methods of the
		439	C<urxvt::term> class on this object.
		440
		441	It has the following methods and data members:
		442
		443	=over 4
		444
		445	=item $urxvt_term = $self->{term}
		446
		447	Returns the C<urxvt::term> object associated with this instance of the
		448	extension. This member I<must not> be changed in any way.
		449
		450	=item $self->enable ($hook_name => $cb, [$hook_name => $cb..])
		451
		452	Dynamically enable the given hooks (named without the C<on_> prefix) for
		453	this extension, replacing any previous hook. This is useful when you want
		454	to overwrite time-critical hooks only temporarily.
		455
		456	=item $self->disable ($hook_name[, $hook_name..])
		457
		458	Dynamically disable the given hooks.
		459
		460	=back
		461
119	=head2 Hooks	462	=head2 Hooks
120		463
121	The following subroutines can be declared in extension files, and will be	464	The following subroutines can be declared in extension files, and will be
122	called whenever the relevant event happens.	465	called whenever the relevant event happens.
123		466
124	The first argument passed to them is an object private to each terminal	467	The first argument passed to them is an extension object as described in
125	and extension package. You can call all C<urxvt::term> methods on it, but	468	the in the C<Extension Objects> section.
126	its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
127	object that is shared between all packages is stored in the C<term>
128	member. It is, however, blessed intot he package of the extension script,
129	so for all practical purposes you can treat an extension script as a class.
130		469
131	All of them must return a boolean value. If it is true, then the event	470	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,	471	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.	472	relevant action might not be carried out by the C++ code.
134		473
135	When in doubt, return a false value (preferably C<()>).	474	I<< When in doubt, return a false value (preferably C<()>). >>
136		475
137	=over 4	476	=over 4
138		477
139	=item on_init $term	478	=item on_init $term
140		479
141	Called after a new terminal object has been initialized, but before	480	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	481	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	482	call or deliver senseless data, as terminal size and other characteristics
144	have not yet been determined. You can safely query and change resources,	483	have not yet been determined. You can safely query and change resources
145	though.	484	and options, though. For many purposes the C<on_start> hook is a better
		485	place.
		486
		487	=item on_start $term
		488
		489	Called at the very end of initialisation of a new terminal, just before
		490	trying to map (display) the toplevel and returning to the main loop.
		491
		492	=item on_destroy $term
		493
		494	Called whenever something tries to destroy terminal, when the terminal is
		495	still fully functional (not for long, though).
146		496
147	=item on_reset $term	497	=item on_reset $term
148		498
149	Called after the screen is "reset" for any reason, such as resizing or	499	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	500	control sequences. Here is where you can react on changes to size-related
151	variables.	501	variables.
152		502
153	=item on_start $term	503	=item on_child_start $term, $pid
154		504
155	Called at the very end of initialisation of a new terminal, just before	505	Called just after the child process has been C<fork>ed.
156	returning to the mainloop.	506
		507	=item on_child_exit $term, $status
		508
		509	Called just after the child process has exited. C<$status> is the status
		510	from C<waitpid>.
157		511
158	=item on_sel_make $term, $eventtime	512	=item on_sel_make $term, $eventtime
159		513
160	Called whenever a selection has been made by the user, but before the	514	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	515	selection text is copied, so changes to the beginning, end or type of the
…		…
168		522
169	Called whenever a selection has been copied, but before the selection is	523	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	524	requested from the server. The selection text can be queried and changed
171	by calling C<< $term->selection >>.	525	by calling C<< $term->selection >>.
172		526
173	Returning a true value aborts selection grabbing. It will still be hilighted.	527	Returning a true value aborts selection grabbing. It will still be highlighted.
174		528
175	=item on_sel_extend $term	529	=item on_sel_extend $term
176		530
177	Called whenever the user tries to extend the selection (e.g. with a double	531	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	532	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	533	should extend the selection itself and return true to suppress the built-in
180	processing.	534	processing. This can happen multiple times, as long as the callback
		535	returns true, it will be called on every further click by the user and is
		536	supposed to enlarge the selection more and more, if possible.
181		537
182	See the F<selection> example extension.	538	See the F<selection> example extension.
183		539
184	=item on_view_change $term, $offset	540	=item on_view_change $term, $offset
185		541
186	Called whenever the view offset changes, i..e the user or program	542	Called whenever the view offset changes, i.e. the user or program
187	scrolls. Offset C<0> means display the normal terminal, positive values	543	scrolls. Offset C<0> means display the normal terminal, positive values
188	show this many lines of scrollback.	544	show this many lines of scrollback.
189		545
190	=item on_scroll_back $term, $lines, $saved	546	=item on_scroll_back $term, $lines, $saved
191		547
…		…
195		551
196	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,	552	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
197	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total	553	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
198	number of lines that will be in the scrollback buffer.	554	number of lines that will be in the scrollback buffer.
199		555
200	=item on_tty_activity $term *NYI*	556	=item on_osc_seq $term, $op, $args
201		557
202	Called whenever the program(s) running in the urxvt window send output.	558	Called on every OSC sequence and can be used to suppress it or modify its
		559	behaviour. The default should be to return an empty list. A true value
		560	suppresses execution of the request completely. Make sure you don't get
		561	confused by recursive invocations when you output an osc sequence within
		562	this callback.
203		563
		564	C<on_osc_seq_perl> should be used for new behaviour.
		565
204	=item on_osc_seq $term, $string	566	=item on_osc_seq_perl $term, $string
205		567
206	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =	568	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
207	operating system command) is processed. Cursor position and other state	569	operating system command) is processed. Cursor position and other state
208	information is up-to-date when this happens. For interoperability, the	570	information is up-to-date when this happens. For interoperability, the
209	string should start with the extension name and a colon, to distinguish	571	string should start with the extension name and a colon, to distinguish
210	it from commands for other extensions, and this might be enforced in the	572	it from commands for other extensions, and this might be enforced in the
211	future.	573	future.
212		574
213	Be careful not ever to trust (in a security sense) the data you receive,	575	Be careful not ever to trust (in a security sense) the data you receive,
214	as its source can not easily be controleld (e-mail content, messages from	576	as its source can not easily be controlled (e-mail content, messages from
215	other users on the same system etc.).	577	other users on the same system etc.).
216		578
217	=item on_add_lines $term, $string	579	=item on_add_lines $term, $string
218		580
219	Called whenever text is about to be output, with the text as argument. You	581	Called whenever text is about to be output, with the text as argument. You
220	can filter/change and output the text yourself by returning a true value	582	can filter/change and output the text yourself by returning a true value
221	and calling C<< $term->scr_add_lines >> yourself. Please note that this	583	and calling C<< $term->scr_add_lines >> yourself. Please note that this
222	might be very slow, however, as your hook is called for B<all> text being	584	might be very slow, however, as your hook is called for B<all> text being
223	output.	585	output.
224		586
		587	=item on_tt_write $term, $octets
		588
		589	Called whenever some data is written to the tty/pty and can be used to
		590	suppress or filter tty input.
		591
225	=item on_line_update $term, $row	592	=item on_line_update $term, $row
226		593
227	Called whenever a line was updated or changed. Can be used to filter	594	Called whenever a line was updated or changed. Can be used to filter
228	screen output (e.g. underline urls or other useless stuff). Only lines	595	screen output (e.g. underline urls or other useless stuff). Only lines
229	that are being shown will be filtered, and, due to performance reasons,	596	that are being shown will be filtered, and, due to performance reasons,
…		…
245		612
246	=item on_refresh_end $term	613	=item on_refresh_end $term
247		614
248	Called just after the screen gets redrawn. See C<on_refresh_begin>.	615	Called just after the screen gets redrawn. See C<on_refresh_begin>.
249		616
250	=item on_keyboard_command $term, $string	617	=item on_user_command $term, $string
251		618
252	Called whenever the user presses a key combination that has a	619	Called whenever a user-configured event is being activated (e.g. via
253	C<perl:string> action bound to it (see description of the B<keysym>	620	a C<perl:string> action bound to a key, see description of the B<keysym>
254	resource in the @@RXVT_NAME@@(1) manpage).	621	resource in the @@RXVT_NAME@@(1) manpage).
		622
		623	The event is simply the action string. This interface is assumed to change
		624	slightly in the future.
		625
		626	=item on_resize_all_windows $tern, $new_width, $new_height
		627
		628	Called just after the new window size has been calculated, but before
		629	windows are actually being resized or hints are being set. If this hook
		630	returns TRUE, setting of the window hints is being skipped.
		631
		632	=item on_x_event $term, $event
		633
		634	Called on every X event received on the vt window (and possibly other
		635	windows). Should only be used as a last resort. Most event structure
		636	members are not passed.
		637
		638	=item on_root_event $term, $event
		639
		640	Like C<on_x_event>, but is called for events on the root window.
255		641
256	=item on_focus_in $term	642	=item on_focus_in $term
257		643
258	Called whenever the window gets the keyboard focus, before rxvt-unicode	644	Called whenever the window gets the keyboard focus, before rxvt-unicode
259	does focus in processing.	645	does focus in processing.
260		646
261	=item on_focus_out $term	647	=item on_focus_out $term
262		648
263	Called wheneever the window loses keyboard focus, before rxvt-unicode does	649	Called whenever the window loses keyboard focus, before rxvt-unicode does
264	focus out processing.	650	focus out processing.
265		651
		652	=item on_configure_notify $term, $event
		653
		654	=item on_property_notify $term, $event
		655
266	=item on_key_press $term, $event, $octets	656	=item on_key_press $term, $event, $keysym, $octets
267		657
268	=item on_key_release $term, $event	658	=item on_key_release $term, $event, $keysym
269		659
270	=item on_button_press $term, $event	660	=item on_button_press $term, $event
271		661
272	=item on_button_release $term, $event	662	=item on_button_release $term, $event
273		663
…		…
279		669
280	Called whenever the corresponding X event is received for the terminal If	670	Called whenever the corresponding X event is received for the terminal If
281	the hook returns true, then the even will be ignored by rxvt-unicode.	671	the hook returns true, then the even will be ignored by rxvt-unicode.
282		672
283	The event is a hash with most values as named by Xlib (see the XEvent	673	The event is a hash with most values as named by Xlib (see the XEvent
284	manpage), with the additional members C<row> and C<col>, which are the row	674	manpage), with the additional members C<row> and C<col>, which are the
285	and column under the mouse cursor.	675	(real, not screen-based) row and column under the mouse cursor.
286		676
287	C<on_key_press> additionally receives the string rxvt-unicode would	677	C<on_key_press> additionally receives the string rxvt-unicode would
288	output, if any, in locale-specific encoding.	678	output, if any, in locale-specific encoding.
289		679
290	subwindow.	680	subwindow.
291		681
		682	=item on_client_message $term, $event
		683
		684	=item on_wm_protocols $term, $event
		685
		686	=item on_wm_delete_window $term, $event
		687
		688	Called when various types of ClientMessage events are received (all with
		689	format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
		690
292	=back	691	=back
293		692
		693	=cut
		694
		695	package urxvt;
		696
		697	use utf8;
		698	use strict;
		699	use Carp ();
		700	use Scalar::Util ();
		701	use List::Util ();
		702
		703	our $VERSION = 1;
		704	our $TERM;
		705	our @TERM_INIT;
		706	our @TERM_EXT;
		707	our @HOOKNAME;
		708	our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
		709	our %OPTION;
		710
		711	our $LIBDIR;
		712	our $RESNAME;
		713	our $RESCLASS;
		714	our $RXVTNAME;
		715
		716	our $NOCHAR = chr 0xffff;
		717
294	=head2 Variables in the C<urxvt> Package	718	=head2 Variables in the C<urxvt> Package
295		719
296	=over 4	720	=over 4
		721
		722	=item $urxvt::LIBDIR
		723
		724	The rxvt-unicode library directory, where, among other things, the perl
		725	modules and scripts are stored.
		726
		727	=item $urxvt::RESCLASS, $urxvt::RESCLASS
		728
		729	The resource class and name rxvt-unicode uses to look up X resources.
		730
		731	=item $urxvt::RXVTNAME
		732
		733	The basename of the installed binaries, usually C<urxvt>.
297		734
298	=item $urxvt::TERM	735	=item $urxvt::TERM
299		736
300	The current terminal. This variable stores the current C<urxvt::term>	737	The current terminal. This variable stores the current C<urxvt::term>
301	object, whenever a callback/hook is executing.	738	object, whenever a callback/hook is executing.
302		739
		740	=item @urxvt::TERM_INIT
		741
		742	All code references in this array will be called as methods of the next newly
		743	created C<urxvt::term> object (during the C<on_init> phase). The array
		744	gets cleared before the code references that were in it are being executed,
		745	so references can push themselves onto it again if they so desire.
		746
		747	This complements to the perl-eval command line option, but gets executed
		748	first.
		749
		750	=item @urxvt::TERM_EXT
		751
		752	Works similar to C<@TERM_INIT>, but contains perl package/class names, which
		753	get registered as normal extensions after calling the hooks in C<@TERM_INIT>
		754	but before other extensions. Gets cleared just like C<@TERM_INIT>.
		755
303	=back	756	=back
304		757
305	=head2 Functions in the C<urxvt> Package	758	=head2 Functions in the C<urxvt> Package
306		759
307	=over 4	760	=over 4
308
309	=item $term = new urxvt [arg...]
310
311	Creates a new terminal, very similar as if you had started it with
312	C<system $binfile, arg...>. Croaks (and probably outputs an error message)
313	if the new instance couldn't be created. Returns C<undef> if the new
314	instance didn't initialise perl, and the terminal object otherwise. The
315	C<init> and C<start> hooks will be called during the call.
316		761
317	=item urxvt::fatal $errormessage	762	=item urxvt::fatal $errormessage
318		763
319	Fatally aborts execution with the given error message. Avoid at all	764	Fatally aborts execution with the given error message. Avoid at all
320	costs! The only time this is acceptable is when the terminal process	765	costs! The only time this is acceptable is when the terminal process
…		…
327	that calls this function.	772	that calls this function.
328		773
329	Using this function has the advantage that its output ends up in the	774	Using this function has the advantage that its output ends up in the
330	correct place, e.g. on stderr of the connecting urxvtc client.	775	correct place, e.g. on stderr of the connecting urxvtc client.
331		776
		777	Messages have a size limit of 1023 bytes currently.
		778
		779	=item @terms = urxvt::termlist
		780
		781	Returns all urxvt::term objects that exist in this process, regardless of
		782	whether they are started, being destroyed etc., so be careful. Only term
		783	objects that have perl extensions attached will be returned (because there
		784	is no urxvt::term objet associated with others).
		785
332	=item $time = urxvt::NOW	786	=item $time = urxvt::NOW
333		787
334	Returns the "current time" (as per the event loop).	788	Returns the "current time" (as per the event loop).
		789
		790	=item urxvt::CurrentTime
		791
		792	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
		793	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
		794	Button4Mask, Button5Mask, AnyModifier
		795
		796	=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
		797	ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
		798	PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
		799	Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
		800	KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
		801	ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
		802	FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
		803
		804	=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
		805	EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
		806	GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
		807	UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
		808	ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
		809	CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
		810	SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
		811
		812	Various constants for use in X calls and event processing.
335		813
336	=back	814	=back
337		815
338	=head2 RENDITION	816	=head2 RENDITION
339		817
…		…
366		844
367	=item $background = urxvt::GET_BASEBG $rend	845	=item $background = urxvt::GET_BASEBG $rend
368		846
369	Return the foreground/background colour index, respectively.	847	Return the foreground/background colour index, respectively.
370		848
371	=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)	849	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
372		850
373	=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)	851	=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
		852
		853	=item $rend = urxvt::SET_COLOR $rend, $new_fg, $new_bg
374		854
375	Replace the foreground/background colour in the rendition mask with the	855	Replace the foreground/background colour in the rendition mask with the
376	specified one.	856	specified one.
377		857
378	=item $value = urxvt::GET_CUSTOM ($rend)	858	=item $value = urxvt::GET_CUSTOM $rend
379		859
380	Return the "custom" value: Every rendition has 5 bits for use by	860	Return the "custom" value: Every rendition has 5 bits for use by
381	extensions. They can be set and changed as you like and are initially	861	extensions. They can be set and changed as you like and are initially
382	zero.	862	zero.
383		863
384	=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)	864	=item $rend = urxvt::SET_CUSTOM $rend, $new_value
385		865
386	Change the custom value.	866	Change the custom value.
387		867
388	=back	868	=back
389		869
390	=cut	870	=cut
391		871
392	package urxvt;
393
394	use strict;
395	use Scalar::Util ();
396
397	our $TERM;
398	our @HOOKNAME;
399	our $LIBDIR;
400
401	BEGIN {	872	BEGIN {
402	urxvt->bootstrap;
403
404	# overwrite perl's warn	873	# overwrite perl's warn
405	*CORE::GLOBAL::warn = sub {	874	*CORE::GLOBAL::warn = sub {
406	my $msg = join "", @_;	875	my $msg = join "", @_;
407	$msg .= "\n"	876	$msg .= "\n"
408	unless $msg =~ /\n$/;	877	unless $msg =~ /\n$/;
409	urxvt::warn ($msg);	878	urxvt::warn ($msg);
410	};	879	};
411	}	880	}
412		881
413	my @hook_count;	882	no warnings 'utf8';
		883
414	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};	884	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
415		885
416	sub verbose {	886	sub verbose {
417	my ($level, $msg) = @_;	887	my ($level, $msg) = @_;
418	warn "$msg\n" if $level <= $verbosity;	888	warn "$msg\n" if $level <= $verbosity;
419	}	889	}
420		890
421	# find on_xxx subs in the package and register them
422	# as hooks
423	sub register_package($) {
424	my ($pkg) = @_;
425
426	for my $htype (0.. $#HOOKNAME) {
427	my $name = $HOOKNAME[$htype];
428
429	my $ref = $pkg->can ("on_" . lc $name)
430	or next;
431
432	$TERM->{_hook}[$htype]{$pkg} = $ref;
433	$hook_count[$htype]++
434	or set_should_invoke $htype, 1;
435	}
436	}
437
438	my $extension_pkg = "extension0000";
439	my %extension_pkg;	891	my %extension_pkg;
440		892
441	# load a single script into its own package, once only	893	# load a single script into its own package, once only
442	sub extension_package($) {	894	sub extension_package($) {
443	my ($path) = @_;	895	my ($path) = @_;
444		896
445	$extension_pkg{$path} ||= do {	897	$extension_pkg{$path} ||= do {
446	my $pkg = "urxvt::" . ($extension_pkg++);	898	$path =~ /([^\/\\]+)$/;
		899	my $pkg = $1;
		900	$pkg =~ s/[^[:word:]]/_/g;
		901	$pkg = "urxvt::ext::$pkg";
447		902
448	verbose 3, "loading extension '$path' into package '$pkg'";	903	verbose 3, "loading extension '$path' into package '$pkg'";
449		904
450	open my $fh, "<:raw", $path	905	open my $fh, "<:raw", $path
451	or die "$path: $!";	906	or die "$path: $!";
452		907
453	my $source = "package $pkg; use strict; use utf8;\n"	908	my $source =
454	. "use base urxvt::term::proxy::;\n"	909	"package $pkg; use strict; use utf8; no warnings 'utf8';\n"
455	. "#line 1 \"$path\"\n{\n"	910	. "#line 1 \"$path\"\n{\n"
456	. (do { local $/; <$fh> })	911	. (do { local $/; <$fh> })
457	. "\n};\n1";	912	. "\n};\n1";
458		913
		914	eval $source
459	eval $source or die "$path: $@";	915	or die "$path: $@";
460		916
461	$pkg	917	$pkg
462	}	918	}
463	}	919	}
464		920
…		…
469	local $TERM = shift;	925	local $TERM = shift;
470	my $htype = shift;	926	my $htype = shift;
471		927
472	if ($htype == 0) { # INIT	928	if ($htype == 0) { # INIT
473	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");	929	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
		930
		931	my %ext_arg;
474		932
		933	{
		934	my @init = @TERM_INIT;
		935	@TERM_INIT = ();
		936	$_->($TERM) for @init;
		937	my @pkg = @TERM_EXT;
		938	@TERM_EXT = ();
		939	$TERM->register_package ($_) for @pkg;
		940	}
		941
475	for my $ext (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {	942	for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
		943	if ($_ eq "default") {
		944	$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
		945	} elsif (/^-(.*)$/) {
		946	delete $ext_arg{$1};
		947	} elsif (/^([^<]+)<(.*)>$/) {
		948	push @{ $ext_arg{$1} }, $2;
		949	} else {
		950	$ext_arg{$_} ||= [];
		951	}
		952	}
		953
		954	for my $ext (sort keys %ext_arg) {
476	my @files = grep -f $_, map "$_/$ext", @dirs;	955	my @files = grep -f $_, map "$_/$ext", @dirs;
477		956
478	if (@files) {	957	if (@files) {
479	register_package extension_package $files[0];	958	$TERM->register_package (extension_package $files[0], $ext_arg{$ext});
480	} else {	959	} else {
481	warn "perl extension '$ext' not found in perl library search path\n";	960	warn "perl extension '$ext' not found in perl library search path\n";
482	}	961	}
483	}	962	}
		963
		964	eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval");
		965	warn $@ if $@;
484	}	966	}
485		967
486	$retval = undef;	968	$retval = undef;
487		969
488	if (my $cb = $TERM->{_hook}[$htype]) {	970	if (my $cb = $TERM->{_hook}[$htype]) {
489	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"	971	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
490	if $verbosity >= 10;	972	if $verbosity >= 10;
491		973
492	keys %$cb;	974	for my $pkg (keys %$cb) {
		975	my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg}, @_) };
		976	$retval ||= $retval_;
493		977
494	while (my ($pkg, $cb) = each %$cb) {	978	if ($@) {
495	eval {	979	$TERM->ungrab; # better to lose the grab than the session
496	$retval = $cb->(	980	warn $@;
497	$TERM->{_pkg}{$pkg} ||= do {
498	my $proxy = bless { }, $pkg;
499	Scalar::Util::weaken ($proxy->{term} = $TERM);
500	$proxy
501	},
502	@_,
503	) and last;
504	};
505	warn $@ if $@;#d#
506	}
507	}
508
509	if ($htype == 1) { # DESTROY
510	# remove hooks if unused
511	if (my $hook = $TERM->{_hook}) {
512	for my $htype (0..$#$hook) {
513	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
514	or set_should_invoke $htype, 0;
515	}	981	}
516	}	982	}
517		983
		984	verbose 11, "$HOOKNAME[$htype] returning <$retval>"
		985	if $verbosity >= 11;
		986	}
		987
		988	if ($htype == 1) { # DESTROY
518	# clear package objects	989	# clear package objects
519	%$_ = () for values %{ $TERM->{_pkg} };	990	%$_ = () for values %{ $TERM->{_pkg} };
520		991
521	# clear package	992	# clear package
522	%$TERM = ();	993	%$TERM = ();
523	}	994	}
524		995
525	$retval	996	$retval
526	}	997	}
527		998
528	sub urxvt::term::proxy::AUTOLOAD {	999	sub SET_COLOR($$$) {
529	$urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/	1000	SET_BGCOLOR (SET_FGCOLOR ($_[0], $_[1]), $_[2])
		1001	}
		1002
		1003	sub rend2mask {
		1004	no strict 'refs';
		1005	my ($str, $mask) = (@_, 0);
		1006	my %color = ( fg => undef, bg => undef );
		1007	my @failed;
		1008	for my $spec ( split /\s+/, $str ) {
		1009	if ( $spec =~ /^([fb]g)[_:-]?(\d+)/i ) {
		1010	$color{lc($1)} = $2;
		1011	} else {
		1012	my $neg = $spec =~ s/^[-^]//;
		1013	unless ( exists &{"RS_$spec"} ) {
		1014	push @failed, $spec;
		1015	next;
		1016	}
		1017	my $cur = &{"RS_$spec"};
		1018	if ( $neg ) {
		1019	$mask &= ~$cur;
		1020	} else {
		1021	$mask |= $cur;
		1022	}
		1023	}
		1024	}
		1025	($mask, @color{qw(fg bg)}, \@failed)
		1026	}
		1027
		1028	# urxvt::term::extension
		1029
		1030	package urxvt::term::extension;
		1031
		1032	sub enable {
		1033	my ($self, %hook) = @_;
		1034	my $pkg = $self->{_pkg};
		1035
		1036	while (my ($name, $cb) = each %hook) {
		1037	my $htype = $HOOKTYPE{uc $name};
		1038	defined $htype
		1039	or Carp::croak "unsupported hook type '$name'";
		1040
		1041	$self->set_should_invoke ($htype, +1)
		1042	unless exists $self->{term}{_hook}[$htype]{$pkg};
		1043
		1044	$self->{term}{_hook}[$htype]{$pkg} = $cb;
		1045	}
		1046	}
		1047
		1048	sub disable {
		1049	my ($self, @hook) = @_;
		1050	my $pkg = $self->{_pkg};
		1051
		1052	for my $name (@hook) {
		1053	my $htype = $HOOKTYPE{uc $name};
		1054	defined $htype
		1055	or Carp::croak "unsupported hook type '$name'";
		1056
		1057	$self->set_should_invoke ($htype, -1)
		1058	if delete $self->{term}{_hook}[$htype]{$pkg};
		1059	}
		1060	}
		1061
		1062	our $AUTOLOAD;
		1063
		1064	sub AUTOLOAD {
		1065	$AUTOLOAD =~ /:([^:]+)$/
530	or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";	1066	or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
531		1067
532	eval qq{	1068	eval qq{
533	sub $urxvt::term::proxy::AUTOLOAD {	1069	sub $AUTOLOAD {
534	my \$proxy = shift;	1070	my \$proxy = shift;
535	\$proxy->{term}->$1 (\@_)	1071	\$proxy->{term}->$1 (\@_)
536	}	1072	}
537	1	1073	1
538	} or die "FATAL: unable to compile method forwarder: $@";	1074	} or die "FATAL: unable to compile method forwarder: $@";
539		1075
540	goto &$urxvt::term::proxy::AUTOLOAD;	1076	goto &$AUTOLOAD;
541	}	1077	}
		1078
		1079	sub DESTROY {
		1080	# nop
		1081	}
		1082
		1083	# urxvt::destroy_hook
542		1084
543	sub urxvt::destroy_hook::DESTROY {	1085	sub urxvt::destroy_hook::DESTROY {
544	${$_[0]}->();	1086	${$_[0]}->();
545	}	1087	}
546		1088
547	sub urxvt::destroy_hook(&) {	1089	sub urxvt::destroy_hook(&) {
548	bless \shift, urxvt::destroy_hook::	1090	bless \shift, urxvt::destroy_hook::
549	}	1091	}
550		1092
		1093	package urxvt::anyevent;
		1094
		1095	=head2 The C<urxvt::anyevent> Class
		1096
		1097	The sole purpose of this class is to deliver an interface to the
		1098	C<AnyEvent> module - any module using it will work inside urxvt without
		1099	further programming. The only exception is that you cannot wait on
		1100	condition variables, but non-blocking condvar use is ok. What this means
		1101	is that you cannot use blocking APIs, but the non-blocking variant should
		1102	work.
		1103
		1104	=cut
		1105
		1106	our $VERSION = 1;
		1107
		1108	$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
		1109	push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
		1110
		1111	sub timer {
		1112	my ($class, %arg) = @_;
		1113
		1114	my $cb = $arg{cb};
		1115
		1116	urxvt::timer
		1117	->new
		1118	->start (urxvt::NOW + $arg{after})
		1119	->cb (sub {
		1120	$_[0]->stop; # need to cancel manually
		1121	$cb->();
		1122	})
		1123	}
		1124
		1125	sub io {
		1126	my ($class, %arg) = @_;
		1127
		1128	my $cb = $arg{cb};
		1129
		1130	bless [$arg{fh}, urxvt::iow
		1131	->new
		1132	->fd (fileno $arg{fh})
		1133	->events (($arg{poll} =~ /r/ ? 1 : 0)
		1134	| ($arg{poll} =~ /w/ ? 2 : 0))
		1135	->start
		1136	->cb (sub {
		1137	$cb->(($_[1] & 1 ? 'r' : '')
		1138	. ($_[1] & 2 ? 'w' : ''));
		1139	})],
		1140	urxvt::anyevent::
		1141	}
		1142
		1143	sub DESTROY {
		1144	$_[0][1]->stop;
		1145	}
		1146
		1147	sub condvar {
		1148	bless \my $flag, urxvt::anyevent::
		1149	}
		1150
		1151	sub broadcast {
		1152	${$_[0]}++;
		1153	}
		1154
		1155	sub wait {
		1156	unless (${$_[0]}) {
		1157	Carp::croak "AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API";
		1158	}
		1159	}
		1160
		1161	sub one_event {
		1162	Carp::croak "AnyEvent->one_event blocking wait unsupported in urxvt, use a non-blocking API";
		1163	}
		1164
		1165	package urxvt::term;
		1166
551	=head2 The C<urxvt::term> Class	1167	=head2 The C<urxvt::term> Class
552		1168
553	=over 4	1169	=over 4
554		1170
		1171	=cut
		1172
		1173	# find on_xxx subs in the package and register them
		1174	# as hooks
		1175	sub register_package {
		1176	my ($self, $pkg, $argv) = @_;
		1177
		1178	no strict 'refs';
		1179
		1180	urxvt::verbose 6, "register package $pkg to $self";
		1181
		1182	@{"$pkg\::ISA"} = urxvt::term::extension::;
		1183
		1184	my $proxy = bless {
		1185	_pkg => $pkg,
		1186	argv => $argv,
		1187	}, $pkg;
		1188	Scalar::Util::weaken ($proxy->{term} = $self);
		1189
		1190	$self->{_pkg}{$pkg} = $proxy;
		1191
		1192	for my $name (@HOOKNAME) {
		1193	if (my $ref = $pkg->can ("on_" . lc $name)) {
		1194	$proxy->enable ($name => $ref);
		1195	}
		1196	}
		1197	}
		1198
		1199	=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
		1200
		1201	Creates a new terminal, very similar as if you had started it with system
		1202	C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
		1203	hash which defines the environment of the new terminal.
		1204
		1205	Croaks (and probably outputs an error message) if the new instance
		1206	couldn't be created. Returns C<undef> if the new instance didn't
		1207	initialise perl, and the terminal object otherwise. The C<init> and
		1208	C<start> hooks will be called before this call returns, and are free to
		1209	refer to global data (which is race free).
		1210
		1211	=cut
		1212
		1213	sub new {
		1214	my ($class, $env, @args) = @_;
		1215
		1216	$env or Carp::croak "environment hash missing in call to urxvt::term->new";
		1217	@args or Carp::croak "name argument missing in call to urxvt::term->new";
		1218
		1219	_new ([ map "$_=$env->{$_}", keys %$env ], \@args);
		1220	}
		1221
555	=item $term->destroy	1222	=item $term->destroy
556		1223
557	Destroy the terminal object (close the window, free resources etc.).	1224	Destroy the terminal object (close the window, free resources
		1225	etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
		1226	watchers (timers, io watchers) are still active.
		1227
		1228	=item $term->exec_async ($cmd[, @args])
		1229
		1230	Works like the combination of the C<fork>/C<exec> builtins, which executes
		1231	("starts") programs in the background. This function takes care of setting
		1232	the user environment before exec'ing the command (e.g. C<PATH>) and should
		1233	be preferred over explicit calls to C<exec> or C<system>.
		1234
		1235	Returns the pid of the subprocess or C<undef> on error.
		1236
		1237	=cut
		1238
		1239	sub exec_async {
		1240	my $self = shift;
		1241
		1242	my $pid = fork;
		1243
		1244	return $pid
		1245	if !defined $pid or $pid;
		1246
		1247	%ENV = %{ $self->env };
		1248
		1249	exec @_;
		1250	urxvt::_exit 255;
		1251	}
		1252
		1253	=item $isset = $term->option ($optval[, $set])
		1254
		1255	Returns true if the option specified by C<$optval> is enabled, and
		1256	optionally change it. All option values are stored by name in the hash
		1257	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
		1258
		1259	Here is a likely non-exhaustive list of option names, please see the
		1260	source file F</src/optinc.h> to see the actual list:
		1261
		1262	borderLess console cursorBlink cursorUnderline hold iconic insecure
		1263	intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
		1264	override-redirect pastableTabs pointerBlank reverseVideo scrollBar
		1265	scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
		1266	scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
		1267	transparent tripleclickwords utmpInhibit visualBell
558		1268
559	=item $value = $term->resource ($name[, $newval])	1269	=item $value = $term->resource ($name[, $newval])
560		1270
561	Returns the current resource value associated with a given name and	1271	Returns the current resource value associated with a given name and
562	optionally sets a new value. Setting values is most useful in the C<init>	1272	optionally sets a new value. Setting values is most useful in the C<init>
…		…
571	likely change).	1281	likely change).
572		1282
573	Please note that resource strings will currently only be freed when the	1283	Please note that resource strings will currently only be freed when the
574	terminal is destroyed, so changing options frequently will eat memory.	1284	terminal is destroyed, so changing options frequently will eat memory.
575		1285
576	Here is a a likely non-exhaustive list of resource names, not all of which	1286	Here is a likely non-exhaustive list of resource names, not all of which
577	are supported in every build, please see the source to see the actual	1287	are supported in every build, please see the source file F</src/rsinc.h>
578	list:	1288	to see the actual list:
579		1289
580	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont	1290	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
581	borderLess color cursorBlink cursorUnderline cutchars delete_key	1291	borderLess color cursorBlink cursorUnderline cutchars delete_key
582	display_name embed ext_bwidth fade font geometry hold iconName	1292	display_name embed ext_bwidth fade font geometry hold iconName
583	imFont imLocale inputMethod insecure int_bwidth intensityStyles	1293	imFont imLocale inputMethod insecure int_bwidth intensityStyles
584	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier	1294	italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
585	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2	1295	mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
586	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd	1296	perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
587	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating	1297	preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
588	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput	1298	scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
589	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle	1299	scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
590	shade term_name title transparent transparent_all tripleclickwords	1300	secondaryScreen secondaryScroll selectstyle shade term_name title
591	utmpInhibit visualBell	1301	transient_for transparent transparent_all tripleclickwords utmpInhibit
		1302	visualBell
592		1303
593	=cut	1304	=cut
594		1305
595	sub urxvt::term::resource($$;$) {	1306	sub resource($$;$) {
596	my ($self, $name) = (shift, shift);	1307	my ($self, $name) = (shift, shift);
597	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);	1308	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
598	&urxvt::term::_resource	1309	&urxvt::term::_resource
599	}	1310	}
600		1311
		1312	=item $value = $term->x_resource ($pattern)
		1313
		1314	Returns the X-Resource for the given pattern, excluding the program or
		1315	class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
		1316	same value as used by this instance of rxvt-unicode. Returns C<undef> if no
		1317	resource with that pattern exists.
		1318
		1319	This method should only be called during the C<on_start> hook, as there is
		1320	only one resource database per display, and later invocations might return
		1321	the wrong resources.
		1322
		1323	=item $success = $term->parse_keysym ($keysym_spec, $command_string)
		1324
		1325	Adds a keymap translation exactly as specified via a resource. See the
		1326	C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
		1327
601	=item $rend = $term->rstyle ([$new_rstyle])	1328	=item $rend = $term->rstyle ([$new_rstyle])
602		1329
603	Return and optionally change the current rendition. Text that is output by	1330	Return and optionally change the current rendition. Text that is output by
604	the terminal application will use this style.	1331	the terminal application will use this style.
605		1332
…		…
615	=item ($row, $col) = $term->selection_end ([$row, $col])	1342	=item ($row, $col) = $term->selection_end ([$row, $col])
616		1343
617	Return the current values of the selection mark, begin or end positions,	1344	Return the current values of the selection mark, begin or end positions,
618	and optionally set them to new values.	1345	and optionally set them to new values.
619		1346
		1347	=item $term->selection_make ($eventtime[, $rectangular])
		1348
		1349	Tries to make a selection as set by C<selection_beg> and
		1350	C<selection_end>. If C<$rectangular> is true (default: false), a
		1351	rectangular selection will be made. This is the prefered function to make
		1352	a selection.
		1353
620	=item $success = $term->selection_grab ($eventtime)	1354	=item $success = $term->selection_grab ($eventtime)
621		1355
622	Try to request the primary selection from the server (for example, as set	1356	Try to request the primary selection text from the server (for example, as
623	by the next method).	1357	set by the next method). No visual feedback will be given. This function
		1358	is mostly useful from within C<on_sel_grab> hooks.
624		1359
625	=item $oldtext = $term->selection ([$newtext])	1360	=item $oldtext = $term->selection ([$newtext])
626		1361
627	Return the current selection text and optionally replace it by C<$newtext>.	1362	Return the current selection text and optionally replace it by C<$newtext>.
628		1363
629	#=item $term->overlay ($x, $y, $text)	1364	=item $term->overlay_simple ($x, $y, $text)
630	#	1365
631	#Create a simple multi-line overlay box. See the next method for details.	1366	Create a simple multi-line overlay box. See the next method for details.
632	#	1367
633	#=cut	1368	=cut
634	#	1369
635	#sub urxvt::term::scr_overlay {	1370	sub overlay_simple {
636	# my ($self, $x, $y, $text) = @_;	1371	my ($self, $x, $y, $text) = @_;
637	#	1372
638	# my @lines = split /\n/, $text;	1373	my @lines = split /\n/, $text;
639	#	1374
640	# my $w = 0;	1375	my $w = List::Util::max map $self->strwidth ($_), @lines;
641	# for (map $self->strwidth ($_), @lines) {	1376
642	# $w = $_ if $w < $_;
643	# }
644	#
645	# $self->scr_overlay_new ($x, $y, $w, scalar @lines);	1377	my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
646	# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;	1378	$overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
647	#}	1379
		1380	$overlay
		1381	}
648		1382
649	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])	1383	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
650		1384
651	Create a new (empty) overlay at the given position with the given	1385	Create a new (empty) overlay at the given position with the given
652	width/height. C<$rstyle> defines the initial rendition style	1386	width/height. C<$rstyle> defines the initial rendition style
…		…
687	C<$event> I<must> be the event causing the menu to pop up (a button event,	1421	C<$event> I<must> be the event causing the menu to pop up (a button event,
688	currently).	1422	currently).
689		1423
690	=cut	1424	=cut
691		1425
692	sub urxvt::term::popup {	1426	sub popup {
693	my ($self, $event) = @_;	1427	my ($self, $event) = @_;
694		1428
695	$self->grab ($event->{time}, 1)	1429	$self->grab ($event->{time}, 1)
696	or return;	1430	or return;
697		1431
…		…
719		1453
720	=item $string = $term->locale_decode ($octets)	1454	=item $string = $term->locale_decode ($octets)
721		1455
722	Convert the given locale-encoded octets into a perl string.	1456	Convert the given locale-encoded octets into a perl string.
723		1457
		1458	=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
		1459
		1460	XORs the rendition values in the given span with the provided value
		1461	(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
		1462	refresh hooks to provide effects similar to the selection.
		1463
		1464	=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
		1465
		1466	Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
		1467	whitespace will additionally be xored with the C<$rstyle2>, which defaults
		1468	to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
		1469	it instead. Both styles I<MUST NOT> contain font styles.
		1470
		1471	=item $term->scr_bell
		1472
		1473	Ring the bell!
		1474
724	=item $term->scr_add_lines ($string)	1475	=item $term->scr_add_lines ($string)
725		1476
726	Write the given text string to the screen, as if output by the application	1477	Write the given text string to the screen, as if output by the application
727	running inside the terminal. It may not contain command sequences (escape	1478	running inside the terminal. It may not contain command sequences (escape
728	codes), but is free to use line feeds, carriage returns and tabs. The	1479	codes), but is free to use line feeds, carriage returns and tabs. The
…		…
730		1481
731	Normally its not a good idea to use this function, as programs might be	1482	Normally its not a good idea to use this function, as programs might be
732	confused by changes in cursor position or scrolling. Its useful inside a	1483	confused by changes in cursor position or scrolling. Its useful inside a
733	C<on_add_lines> hook, though.	1484	C<on_add_lines> hook, though.
734		1485
		1486	=item $term->scr_change_screen ($screen)
		1487
		1488	Switch to given screen - 0 primary, 1 secondary.
		1489
735	=item $term->cmd_parse ($octets)	1490	=item $term->cmd_parse ($octets)
736		1491
737	Similar to C<scr_add_lines>, but the argument must be in the	1492	Similar to C<scr_add_lines>, but the argument must be in the
738	locale-specific encoding of the terminal and can contain command sequences	1493	locale-specific encoding of the terminal and can contain command sequences
739	(escape codes) that will be interpreted.	1494	(escape codes) that will be interpreted.
…		…
742		1497
743	Write the octets given in C<$data> to the tty (i.e. as program input). To	1498	Write the octets given in C<$data> to the tty (i.e. as program input). To
744	pass characters instead of octets, you should convert your strings first	1499	pass characters instead of octets, you should convert your strings first
745	to the locale-specific encoding using C<< $term->locale_encode >>.	1500	to the locale-specific encoding using C<< $term->locale_encode >>.
746		1501
		1502	=item $old_events = $term->pty_ev_events ([$new_events])
		1503
		1504	Replaces the event mask of the pty watcher by the given event mask. Can
		1505	be used to suppress input and output handling to the pty/tty. See the
		1506	description of C<< urxvt::timer->events >>. Make sure to always restore
		1507	the previous value.
		1508
		1509	=item $fd = $term->pty_fd
		1510
		1511	Returns the master file descriptor for the pty in use, or C<-1> if no pty
		1512	is used.
		1513
747	=item $windowid = $term->parent	1514	=item $windowid = $term->parent
748		1515
749	Return the window id of the toplevel window.	1516	Return the window id of the toplevel window.
750		1517
751	=item $windowid = $term->vt	1518	=item $windowid = $term->vt
752		1519
753	Return the window id of the terminal window.	1520	Return the window id of the terminal window.
754		1521
		1522	=item $term->vt_emask_add ($x_event_mask)
		1523
		1524	Adds the specified events to the vt event mask. Useful e.g. when you want
		1525	to receive pointer events all the times:
		1526
		1527	$term->vt_emask_add (urxvt::PointerMotionMask);
		1528
		1529	=item $term->focus_in
		1530
		1531	=item $term->focus_out
		1532
		1533	=item $term->key_press ($state, $keycode[, $time])
		1534
		1535	=item $term->key_release ($state, $keycode[, $time])
		1536
		1537	Deliver various fake events to to terminal.
		1538
755	=item $window_width = $term->width	1539	=item $window_width = $term->width
756		1540
757	=item $window_height = $term->height	1541	=item $window_height = $term->height
758		1542
759	=item $font_width = $term->fwidth	1543	=item $font_width = $term->fwidth
…		…
772		1556
773	=item $max_scrollback = $term->saveLines	1557	=item $max_scrollback = $term->saveLines
774		1558
775	=item $nrow_plus_saveLines = $term->total_rows	1559	=item $nrow_plus_saveLines = $term->total_rows
776		1560
777	=item $lines_in_scrollback = $term->nsaved	1561	=item $topmost_scrollback_row = $term->top_row
778		1562
779	Return various integers describing terminal characteristics.	1563	Return various integers describing terminal characteristics.
780		1564
		1565	=item $x_display = $term->display_id
		1566
		1567	Return the DISPLAY used by rxvt-unicode.
		1568
		1569	=item $lc_ctype = $term->locale
		1570
		1571	Returns the LC_CTYPE category string used by this rxvt-unicode.
		1572
		1573	=item $env = $term->env
		1574
		1575	Returns a copy of the environment in effect for the terminal as a hashref
		1576	similar to C<\%ENV>.
		1577
		1578	=item @envv = $term->envv
		1579
		1580	Returns the environment as array of strings of the form C<VAR=VALUE>.
		1581
		1582	=item @argv = $term->argv
		1583
		1584	Return the argument vector as this terminal, similar to @ARGV, but
		1585	includes the program name as first element.
		1586
		1587	=cut
		1588
		1589	sub env {
		1590	+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), $_[0]->envv }
		1591	}
		1592
		1593	=item $modifiermask = $term->ModLevel3Mask
		1594
		1595	=item $modifiermask = $term->ModMetaMask
		1596
		1597	=item $modifiermask = $term->ModNumLockMask
		1598
		1599	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
		1600	AltGr), the meta key (often Alt) and the num lock key, if applicable.
		1601
		1602	=item $screen = $term->current_screen
		1603
		1604	Returns the currently displayed screen (0 primary, 1 secondary).
		1605
		1606	=item $cursor_is_hidden = $term->hidden_cursor
		1607
		1608	Returns whether the cursor is currently hidden or not.
		1609
781	=item $view_start = $term->view_start ([$newvalue])	1610	=item $view_start = $term->view_start ([$newvalue])
782		1611
783	Returns the negative row number of the topmost line. Minimum value is	1612	Returns the row number of the topmost displayed line. Maximum value is
784	C<0>, which displays the normal terminal contents. Larger values scroll	1613	C<0>, which displays the normal terminal contents. Lower values scroll
785	this many lines into the scrollback buffer.	1614	this many lines into the scrollback buffer.
786		1615
787	=item $term->want_refresh	1616	=item $term->want_refresh
788		1617
789	Requests a screen refresh. At the next opportunity, rxvt-unicode will	1618	Requests a screen refresh. At the next opportunity, rxvt-unicode will
…		…
804	line, starting at column C<$start_col> (default C<0>), which is useful	1633	line, starting at column C<$start_col> (default C<0>), which is useful
805	to replace only parts of a line. The font index in the rendition will	1634	to replace only parts of a line. The font index in the rendition will
806	automatically be updated.	1635	automatically be updated.
807		1636
808	C<$text> is in a special encoding: tabs and wide characters that use more	1637	C<$text> is in a special encoding: tabs and wide characters that use more
809	than one cell when displayed are padded with urxvt::NOCHAR characters	1638	than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
810	(C<chr 65535>). Characters with combining characters and other characters	1639	characters. Characters with combining characters and other characters that
811	that do not fit into the normal tetx encoding will be replaced with	1640	do not fit into the normal tetx encoding will be replaced with characters
812	characters in the private use area.	1641	in the private use area.
813		1642
814	You have to obey this encoding when changing text. The advantage is	1643	You have to obey this encoding when changing text. The advantage is
815	that C<substr> and similar functions work on screen cells and not on	1644	that C<substr> and similar functions work on screen cells and not on
816	characters.	1645	characters.
817		1646
…		…
868	Return the row number of the first/last row of the line, respectively.	1697	Return the row number of the first/last row of the line, respectively.
869		1698
870	=item $offset = $line->offset_of ($row, $col)	1699	=item $offset = $line->offset_of ($row, $col)
871		1700
872	Returns the character offset of the given row|col pair within the logical	1701	Returns the character offset of the given row|col pair within the logical
873	line.	1702	line. Works for rows outside the line, too, and returns corresponding
		1703	offsets outside the string.
874		1704
875	=item ($row, $col) = $line->coord_of ($offset)	1705	=item ($row, $col) = $line->coord_of ($offset)
876		1706
877	Translates a string offset into terminal coordinates again.	1707	Translates a string offset into terminal coordinates again.
878		1708
879	=back	1709	=back
880		1710
881	=cut	1711	=cut
882		1712
883	sub urxvt::term::line {	1713	sub line {
884	my ($self, $row) = @_;	1714	my ($self, $row) = @_;
885		1715
886	my $maxrow = $self->nrow - 1;	1716	my $maxrow = $self->nrow - 1;
887		1717
888	my ($beg, $end) = ($row, $row);	1718	my ($beg, $end) = ($row, $row);
…		…
952	$offset / $self->{ncol} + $self->{beg},	1782	$offset / $self->{ncol} + $self->{beg},
953	$offset % $self->{ncol}	1783	$offset % $self->{ncol}
954	)	1784	)
955	}	1785	}
956		1786
957	=item ($row, $col) = $line->coord_of ($offset)
958	=item $text = $term->special_encode $string	1787	=item $text = $term->special_encode $string
959		1788
960	Converts a perl string into the special encoding used by rxvt-unicode,	1789	Converts a perl string into the special encoding used by rxvt-unicode,
961	where one character corresponds to one screen cell. See	1790	where one character corresponds to one screen cell. See
962	C<< $term->ROW_t >> for details.	1791	C<< $term->ROW_t >> for details.
963		1792
964	=item $string = $term->special_decode $text	1793	=item $string = $term->special_decode $text
965		1794
966	Converts rxvt-unicodes text reprsentation into a perl string. See	1795	Converts rxvt-unicodes text representation into a perl string. See
967	C<< $term->ROW_t >> for details.	1796	C<< $term->ROW_t >> for details.
968		1797
		1798	=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
		1799
		1800	=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
		1801
		1802	Register/unregister a synchronous button grab. See the XGrabButton
		1803	manpage.
		1804
		1805	=item $success = $term->grab ($eventtime[, $sync])
		1806
		1807	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
		1808	synchronous (C<$sync> is true). Also remembers the grab timestamp.
		1809
		1810	=item $term->allow_events_async
		1811
		1812	Calls XAllowEvents with AsyncBoth for the most recent grab.
		1813
		1814	=item $term->allow_events_sync
		1815
		1816	Calls XAllowEvents with SyncBoth for the most recent grab.
		1817
		1818	=item $term->allow_events_replay
		1819
		1820	Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
		1821	recent grab.
		1822
		1823	=item $term->ungrab
		1824
		1825	Calls XUngrab for the most recent grab. Is called automatically on
		1826	evaluation errors, as it is better to lose the grab in the error case as
		1827	the session.
		1828
		1829	=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
		1830
		1831	=item $atom_name = $term->XGetAtomName ($atom)
		1832
		1833	=item @atoms = $term->XListProperties ($window)
		1834
		1835	=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
		1836
		1837	=item $term->XChangeWindowProperty ($window, $property, $type, $format, $octets)
		1838
		1839	=item $term->XDeleteProperty ($window, $property)
		1840
		1841	=item $window = $term->DefaultRootWindow
		1842
		1843	=item $term->XReparentWindow ($window, $parent, [$x, $y])
		1844
		1845	=item $term->XMapWindow ($window)
		1846
		1847	=item $term->XUnmapWindow ($window)
		1848
		1849	=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
		1850
		1851	=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
		1852
		1853	=item $term->XChangeInput ($window, $add_events[, $del_events])
		1854
		1855	Various X or X-related functions. The C<$term> object only serves as
		1856	the source of the display, otherwise those functions map more-or-less
		1857	directory onto the X functions of the same name.
		1858
969	=back	1859	=back
970		1860
		1861	=cut
		1862
		1863	package urxvt::popup;
		1864
971	=head2 The C<urxvt::popup> Class	1865	=head2 The C<urxvt::popup> Class
972		1866
973	=over 4	1867	=over 4
974		1868
975	=cut	1869	=cut
976
977	package urxvt::popup;
978		1870
979	sub add_item {	1871	sub add_item {
980	my ($self, $item) = @_;	1872	my ($self, $item) = @_;
981		1873
		1874	$item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal};
		1875	$item->{rend}{hover} = "\x1b[0;30;46m" unless exists $item->{rend}{hover};
		1876	$item->{rend}{active} = "\x1b[m" unless exists $item->{rend}{active};
		1877
		1878	$item->{render} ||= sub { $_[0]{text} };
		1879
982	push @{ $self->{item} }, $item;	1880	push @{ $self->{item} }, $item;
983	}	1881	}
		1882
		1883	=item $popup->add_title ($title)
		1884
		1885	Adds a non-clickable title to the popup.
		1886
		1887	=cut
		1888
		1889	sub add_title {
		1890	my ($self, $title) = @_;
		1891
		1892	$self->add_item ({
		1893	rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
		1894	text => $title,
		1895	activate => sub { },
		1896	});
		1897	}
		1898
		1899	=item $popup->add_separator ([$sepchr])
		1900
		1901	Creates a separator, optionally using the character given as C<$sepchr>.
		1902
		1903	=cut
		1904
		1905	sub add_separator {
		1906	my ($self, $sep) = @_;
		1907
		1908	$sep ||= "=";
		1909
		1910	$self->add_item ({
		1911	rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
		1912	text => "",
		1913	render => sub { $sep x $self->{term}->ncol },
		1914	activate => sub { },
		1915	});
		1916	}
		1917
		1918	=item $popup->add_button ($text, $cb)
		1919
		1920	Adds a clickable button to the popup. C<$cb> is called whenever it is
		1921	selected.
		1922
		1923	=cut
984		1924
985	sub add_button {	1925	sub add_button {
986	my ($self, $text, $cb) = @_;	1926	my ($self, $text, $cb) = @_;
987		1927
988	$self->add_item ({ type => "button", text => "[ $text ]", activate => $cb });	1928	$self->add_item ({ type => "button", text => $text, activate => $cb});
989	}	1929	}
		1930
		1931	=item $popup->add_toggle ($text, $initial_value, $cb)
		1932
		1933	Adds a toggle/checkbox item to the popup. The callback gets called
		1934	whenever it gets toggled, with a boolean indicating its new value as its
		1935	first argument.
		1936
		1937	=cut
		1938
		1939	sub add_toggle {
		1940	my ($self, $text, $value, $cb) = @_;
		1941
		1942	my $item; $item = {
		1943	type => "button",
		1944	text => " $text",
		1945	value => $value,
		1946	render => sub { ($_[0]{value} ? "* " : " ") . $text },
		1947	activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
		1948	};
		1949
		1950	$self->add_item ($item);
		1951	}
		1952
		1953	=item $popup->show
		1954
		1955	Displays the popup (which is initially hidden).
		1956
		1957	=cut
990		1958
991	sub show {	1959	sub show {
992	my ($self) = @_;	1960	my ($self) = @_;
993		1961
994	local $urxvt::popup::self = $self;	1962	local $urxvt::popup::self = $self;
995		1963
996	urxvt->new ("--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0,	1964	my $env = $self->{term}->env;
		1965	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
		1966	delete $env->{LC_ALL};
		1967	$env->{LC_CTYPE} = $self->{term}->locale;
		1968
		1969	urxvt::term->new ($env, "popup",
		1970	"--perl-lib" => "", "--perl-ext-common" => "",
		1971	"-pty-fd" => -1, "-sl" => 0,
		1972	"-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
997	"--transient-for" => $self->{term}->parent,	1973	"--transient-for" => $self->{term}->parent,
		1974	"-display" => $self->{term}->display_id,
998	"-pe" => "urxvt_popup")	1975	"-pe" => "urxvt-popup")
999	or die "unable to create popup window\n";	1976	or die "unable to create popup window\n";
1000	}	1977	}
1001		1978
1002	sub DESTROY {	1979	sub DESTROY {
1003	my ($self) = @_;	1980	my ($self) = @_;
1004		1981
		1982	delete $self->{term}{_destroy}{$self};
1005	$self->{term}->ungrab;	1983	$self->{term}->ungrab;
1006	}	1984	}
		1985
		1986	=back
		1987
		1988	=cut
		1989
		1990	package urxvt::watcher;
1007		1991
1008	=head2 The C<urxvt::timer> Class	1992	=head2 The C<urxvt::timer> Class
1009		1993
1010	This class implements timer watchers/events. Time is represented as a	1994	This class implements timer watchers/events. Time is represented as a
1011	fractional number of seconds since the epoch. Example:	1995	fractional number of seconds since the epoch. Example:
…		…
1050		2034
1051	=item $timer = $timer->start ($tstamp)	2035	=item $timer = $timer->start ($tstamp)
1052		2036
1053	Set the event trigger time to C<$tstamp> and start the timer.	2037	Set the event trigger time to C<$tstamp> and start the timer.
1054		2038
		2039	=item $timer = $timer->after ($delay)
		2040
		2041	Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
		2042
1055	=item $timer = $timer->stop	2043	=item $timer = $timer->stop
1056		2044
1057	Stop the timer.	2045	Stop the timer.
1058		2046
1059	=back	2047	=back
…		…
1064		2052
1065	$term->{socket} = ...	2053	$term->{socket} = ...
1066	$term->{iow} = urxvt::iow	2054	$term->{iow} = urxvt::iow
1067	->new	2055	->new
1068	->fd (fileno $term->{socket})	2056	->fd (fileno $term->{socket})
1069	->events (1) # wait for read data	2057	->events (urxvt::EVENT_READ)
1070	->start	2058	->start
1071	->cb (sub {	2059	->cb (sub {
1072	my ($iow, $revents) = @_;	2060	my ($iow, $revents) = @_;
1073	# $revents must be 1 here, no need to check	2061	# $revents must be 1 here, no need to check
1074	sysread $term->{socket}, my $buf, 8192	2062	sysread $term->{socket}, my $buf, 8192
…		…
1087	Set the callback to be called when io events are triggered. C<$reventmask>	2075	Set the callback to be called when io events are triggered. C<$reventmask>
1088	is a bitset as described in the C<events> method.	2076	is a bitset as described in the C<events> method.
1089		2077
1090	=item $iow = $iow->fd ($fd)	2078	=item $iow = $iow->fd ($fd)
1091		2079
1092	Set the filedescriptor (not handle) to watch.	2080	Set the file descriptor (not handle) to watch.
1093		2081
1094	=item $iow = $iow->events ($eventmask)	2082	=item $iow = $iow->events ($eventmask)
1095		2083
1096	Set the event mask to watch. Bit #0 (value C<1>) enables watching for read	2084	Set the event mask to watch. The only allowed values are
1097	data, Bit #1 (value C<2>) enables watching for write data.	2085	C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed
		2086	together, or C<urxvt::EVENT_NONE>.
1098		2087
1099	=item $iow = $iow->start	2088	=item $iow = $iow->start
1100		2089
1101	Start watching for requested events on the given handle.	2090	Start watching for requested events on the given handle.
1102		2091
1103	=item $iow = $iow->stop	2092	=item $iow = $iow->stop
1104		2093
1105	Stop watching for events on the given filehandle.	2094	Stop watching for events on the given file handle.
		2095
		2096	=back
		2097
		2098	=head2 The C<urxvt::iw> Class
		2099
		2100	This class implements idle watchers, that get called automatically when
		2101	the process is idle. They should return as fast as possible, after doing
		2102	some useful work.
		2103
		2104	=over 4
		2105
		2106	=item $iw = new urxvt::iw
		2107
		2108	Create a new idle watcher object in stopped state.
		2109
		2110	=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
		2111
		2112	Set the callback to be called when the watcher triggers.
		2113
		2114	=item $timer = $timer->start
		2115
		2116	Start the watcher.
		2117
		2118	=item $timer = $timer->stop
		2119
		2120	Stop the watcher.
		2121
		2122	=back
		2123
		2124	=head2 The C<urxvt::pw> Class
		2125
		2126	This class implements process watchers. They create an event whenever a
		2127	process exits, after which they stop automatically.
		2128
		2129	my $pid = fork;
		2130	...
		2131	$term->{pw} = urxvt::pw
		2132	->new
		2133	->start ($pid)
		2134	->cb (sub {
		2135	my ($pw, $exit_status) = @_;
		2136	...
		2137	});
		2138
		2139	=over 4
		2140
		2141	=item $pw = new urxvt::pw
		2142
		2143	Create a new process watcher in stopped state.
		2144
		2145	=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
		2146
		2147	Set the callback to be called when the timer triggers.
		2148
		2149	=item $pw = $timer->start ($pid)
		2150
		2151	Tells the watcher to start watching for process C<$pid>.
		2152
		2153	=item $pw = $pw->stop
		2154
		2155	Stop the watcher.
1106		2156
1107	=back	2157	=back
1108		2158
1109	=head1 ENVIRONMENT	2159	=head1 ENVIRONMENT
1110		2160
…		…
1113	This variable controls the verbosity level of the perl extension. Higher	2163	This variable controls the verbosity level of the perl extension. Higher
1114	numbers indicate more verbose output.	2164	numbers indicate more verbose output.
1115		2165
1116	=over 4	2166	=over 4
1117		2167
1118	=item =0 - only fatal messages	2168	=item == 0 - fatal messages
1119		2169
1120	=item =3 - script loading and management	2170	=item >= 3 - script loading and management
1121		2171
1122	=item =10 - all events received	2172	=item >=10 - all called hooks
		2173
		2174	=item >=11 - hook return values
1123		2175
1124	=back	2176	=back
1125		2177
1126	=head1 AUTHOR	2178	=head1 AUTHOR
1127		2179
…		…
1129	http://software.schmorp.de/pkg/rxvt-unicode	2181	http://software.schmorp.de/pkg/rxvt-unicode
1130		2182
1131	=cut	2183	=cut
1132		2184
1133	1	2185	1
		2186
		2187	# vim: sw=3:

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