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Revision 1.50 by root, Sun Jan 8 00:11:38 2006 UTC vs.
Revision 1.171 by root, Fri Oct 10 00:11:44 2008 UTC

…		…
17		17
18	@@RXVT_NAME@@ --perl-lib $HOME -pe grab_test	18	@@RXVT_NAME@@ --perl-lib $HOME -pe grab_test
19		19
20	=head1 DESCRIPTION	20	=head1 DESCRIPTION
21		21
22	Everytime a terminal object gets created, extension scripts specified via	22	Every time a terminal object gets created, extension scripts specified via
23	the C<perl> resource are loaded and associated with it.	23	the C<perl> resource are loaded and associated with it.
24		24
25	Scripts are compiled in a 'use strict' and 'use utf8' environment, and	25	Scripts are compiled in a 'use strict' and 'use utf8' environment, and
26	thus must be encoded as UTF-8.	26	thus must be encoded as UTF-8.
27		27
28	Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where	28	Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where
29	scripts will be shared (but not enabled) for all terminals.	29	scripts will be shared (but not enabled) for all terminals.
30		30
31	=head2 Prepackaged Extensions	31	You can disable the embedded perl interpreter by setting both "perl-ext"
		32	and "perl-ext-common" resources to the empty string.
32		33
		34	=head1 PREPACKAGED EXTENSIONS
		35
33	This section describes the extensiosn delivered with this version. You can	36	This section describes the extensions delivered with this release. You can
34	find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.	37	find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.
35		38
36	You can activate them like this:	39	You can activate them like this:
37		40
38	@@RXVT_NAME@@ -pe <extensionname>	41	@@RXVT_NAME@@ -pe <extensionname>
39		42
		43	Or by adding them to the resource for extensions loaded by default:
		44
		45	URxvt.perl-ext-common: default,selection-autotransform
		46
40	=over 4	47	=over 4
41		48
42	=item selection	49	=item selection (enabled by default)
43		50
44	Intelligent selection. This extension tries to be more intelligent when	51	(More) intelligent selection. This extension tries to be more intelligent
45	the user extends selections (double-click). Right now, it tries to select	52	when the user extends selections (double-click and further clicks). Right
46	urls and complete shell-quoted arguments, which is very convenient, too,	53	now, it tries to select words, urls and complete shell-quoted
47	if your F<ls> supports C<--quoting-style=shell>.	54	arguments, which is very convenient, too, if your F<ls> supports
		55	C<--quoting-style=shell>.
48		56
49	It also offers the following bindable event:	57	A double-click usually selects the word under the cursor, further clicks
		58	will enlarge the selection.
		59
		60	The selection works by trying to match a number of regexes and displaying
		61	them in increasing order of length. You can add your own regexes by
		62	specifying resources of the form:
		63
		64	URxvt.selection.pattern-0: perl-regex
		65	URxvt.selection.pattern-1: perl-regex
		66	...
		67
		68	The index number (0, 1...) must not have any holes, and each regex must
		69	contain at least one pair of capturing parentheses, which will be used for
		70	the match. For example, the following adds a regex that matches everything
		71	between two vertical bars:
		72
		73	URxvt.selection.pattern-0: \\|([^|]+)\\|
		74
		75	Another example: Programs I use often output "absolute path: " at the
		76	beginning of a line when they process multiple files. The following
		77	pattern matches the filename (note, there is a single space at the very
		78	end):
		79
		80	URxvt.selection.pattern-0: ^(/[^:]+):\
		81
		82	You can look at the source of the selection extension to see more
		83	interesting uses, such as parsing a line from beginning to end.
		84
		85	This extension also offers following bindable keyboard commands:
50		86
51	=over 4	87	=over 4
52		88
53	=item rot13	89	=item rot13
54		90
…		…
56		92
57	URxvt.keysym.C-M-r: perl:selection:rot13	93	URxvt.keysym.C-M-r: perl:selection:rot13
58		94
59	=back	95	=back
60		96
61	=item digital-clock	97	=item option-popup (enabled by default)
62		98
63	Displays a digital clock using the built-in overlay.	99	Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at
		100	runtime.
64		101
65	=item mark-urls	102	Other extensions can extend this popup menu by pushing a code reference
		103	onto C<@{ $term->{option_popup_hook} }>, which gets called whenever the
		104	popup is being displayed.
66		105
		106	Its sole argument is the popup menu, which can be modified. It should
		107	either return nothing or a string, the initial boolean value and a code
		108	reference. The string will be used as button text and the code reference
		109	will be called when the toggle changes, with the new boolean value as
		110	first argument.
		111
		112	The following will add an entry C<myoption> that changes
		113	C<< $self->{myoption} >>:
		114
		115	push @{ $self->{term}{option_popup_hook} }, sub {
		116	("my option" => $myoption, sub { $self->{myoption} = $_[0] })
		117	};
		118
		119	=item selection-popup (enabled by default)
		120
		121	Binds a popup menu to Ctrl-Button3 that lets you convert the selection
		122	text into various other formats/action (such as uri unescaping, perl
		123	evaluation, web-browser starting etc.), depending on content.
		124
		125	Other extensions can extend this popup menu by pushing a code reference
		126	onto C<@{ $term->{selection_popup_hook} }>, which gets called whenever the
		127	popup is being displayed.
		128
		129	Its sole argument is the popup menu, which can be modified. The selection
		130	is in C<$_>, which can be used to decide whether to add something or not.
		131	It should either return nothing or a string and a code reference. The
		132	string will be used as button text and the code reference will be called
		133	when the button gets activated and should transform C<$_>.
		134
		135	The following will add an entry C<a to b> that transforms all C<a>s in
		136	the selection to C<b>s, but only if the selection currently contains any
		137	C<a>s:
		138
		139	push @{ $self->{term}{selection_popup_hook} }, sub {
		140	/a/ ? ("a to b" => sub { s/a/b/g }
		141	: ()
		142	};
		143
		144	=item searchable-scrollback<hotkey> (enabled by default)
		145
		146	Adds regex search functionality to the scrollback buffer, triggered
		147	by a hotkey (default: C<M-s>). While in search mode, normal terminal
		148	input/output is suspended and a regex is displayed at the bottom of the
		149	screen.
		150
		151	Inputting characters appends them to the regex and continues incremental
		152	search. C<BackSpace> removes a character from the regex, C<Up> and C<Down>
		153	search upwards/downwards in the scrollback buffer, C<End> jumps to the
		154	bottom. C<Escape> leaves search mode and returns to the point where search
		155	was started, while C<Enter> or C<Return> stay at the current position and
		156	additionally stores the first match in the current line into the primary
		157	selection if the C<Shift> modifier is active.
		158
		159	The regex defaults to "(?i)", resulting in a case-insensitive search. To
		160	get a case-sensitive search you can delete this prefix using C<BackSpace>
		161	or simply use an uppercase character which removes the "(?i)" prefix.
		162
		163	See L<perlre> for more info about perl regular expression syntax.
		164
		165	=item readline (enabled by default)
		166
		167	A support package that tries to make editing with readline easier. At
		168	the moment, it reacts to clicking shift-left mouse button by trying to
		169	move the text cursor to this position. It does so by generating as many
		170	cursor-left or cursor-right keypresses as required (this only works
		171	for programs that correctly support wide characters).
		172
		173	To avoid too many false positives, this is only done when:
		174
		175	=over 4
		176
		177	=item - the tty is in ICANON state.
		178
		179	=item - the text cursor is visible.
		180
		181	=item - the primary screen is currently being displayed.
		182
		183	=item - the mouse is on the same (multi-row-) line as the text cursor.
		184
		185	=back
		186
		187	The normal selection mechanism isn't disabled, so quick successive clicks
		188	might interfere with selection creation in harmless ways.
		189
		190	=item selection-autotransform
		191
		192	This selection allows you to do automatic transforms on a selection
		193	whenever a selection is made.
		194
		195	It works by specifying perl snippets (most useful is a single C<s///>
		196	operator) that modify C<$_> as resources:
		197
		198	URxvt.selection-autotransform.0: transform
		199	URxvt.selection-autotransform.1: transform
		200	...
		201
		202	For example, the following will transform selections of the form
		203	C<filename:number>, often seen in compiler messages, into C<vi +$filename
		204	$word>:
		205
		206	URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
		207
		208	And this example matches the same,but replaces it with vi-commands you can
		209	paste directly into your (vi :) editor:
		210
		211	URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
		212
		213	Of course, this can be modified to suit your needs and your editor :)
		214
		215	To expand the example above to typical perl error messages ("XXX at
		216	FILENAME line YYY."), you need a slightly more elaborate solution:
		217
		218	URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
		219	URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
		220
		221	The first line tells the selection code to treat the unchanging part of
		222	every error message as a selection pattern, and the second line transforms
		223	the message into vi commands to load the file.
		224
		225	=item tabbed
		226
		227	This transforms the terminal into a tabbar with additional terminals, that
		228	is, it implements what is commonly referred to as "tabbed terminal". The topmost line
		229	displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
		230	button per tab.
		231
		232	Clicking a button will activate that tab. Pressing B<Shift-Left> and
		233	B<Shift-Right> will switch to the tab left or right of the current one,
		234	while B<Shift-Down> creates a new tab.
		235
		236	The tabbar itself can be configured similarly to a normal terminal, but
		237	with a resource class of C<URxvt.tabbed>. In addition, it supports the
		238	following four resources (shown with defaults):
		239
		240	URxvt.tabbed.tabbar-fg: <colour-index, default 3>
		241	URxvt.tabbed.tabbar-bg: <colour-index, default 0>
		242	URxvt.tabbed.tab-fg: <colour-index, default 0>
		243	URxvt.tabbed.tab-bg: <colour-index, default 1>
		244
		245	See I<COLOR AND GRAPHICS> in the @@RXVT_NAME@@(1) manpage for valid
		246	indices.
		247
		248	=item matcher
		249
67	Uses per-line display filtering (C<on_line_update>) to underline urls.	250	Uses per-line display filtering (C<on_line_update>) to underline text
		251	matching a certain pattern and make it clickable. When clicked with the
		252	mouse button specified in the C<matcher.button> resource (default 2, or
		253	middle), the program specified in the C<matcher.launcher> resource
		254	(default, the C<urlLauncher> resource, C<sensible-browser>) will be started
		255	with the matched text as first argument. The default configuration is
		256	suitable for matching URLs and launching a web browser, like the
		257	former "mark-urls" extension.
		258
		259	The default pattern to match URLs can be overridden with the
		260	C<matcher.pattern.0> resource, and additional patterns can be specified
		261	with numbered patterns, in a manner similar to the "selection" extension.
		262	The launcher can also be overridden on a per-pattern basis.
		263
		264	It is possible to activate the most recently seen match from the keyboard.
		265	Simply bind a keysym to "perl:matcher" as seen in the example below.
		266
		267	Example configuration:
		268
		269	URxvt.perl-ext: default,matcher
		270	URxvt.urlLauncher: sensible-browser
		271	URxvt.keysym.C-Delete: perl:matcher
		272	URxvt.matcher.button: 1
		273	URxvt.matcher.pattern.1: \\bwww\\.[\\w-]+\\.[\\w./?&@#-]*[\\w/-]
		274	URxvt.matcher.pattern.2: \\B(/\\S+?):(\\d+)(?=:|$)
		275	URxvt.matcher.launcher.2: gvim +$2 $1
		276
		277	=item xim-onthespot
		278
		279	This (experimental) perl extension implements OnTheSpot editing. It does
		280	not work perfectly, and some input methods don't seem to work well with
		281	OnTheSpot editing in general, but it seems to work at least for SCIM and
		282	kinput2.
		283
		284	You enable it by specifying this extension and a preedit style of
		285	C<OnTheSpot>, i.e.:
		286
		287	@@RXVT_NAME@@ -pt OnTheSpot -pe xim-onthespot
		288
		289	=item kuake<hotkey>
		290
		291	A very primitive quake-console-like extension. It was inspired by a
		292	description of how the programs C<kuake> and C<yakuake> work: Whenever the
		293	user presses a global accelerator key (by default C<F10>), the terminal
		294	will show or hide itself. Another press of the accelerator key will hide
		295	or show it again.
		296
		297	Initially, the window will not be shown when using this extension.
		298
		299	This is useful if you need a single terminal that is not using any desktop
		300	space most of the time but is quickly available at the press of a key.
		301
		302	The accelerator key is grabbed regardless of any modifiers, so this
		303	extension will actually grab a physical key just for this function.
		304
		305	If you want a quake-like animation, tell your window manager to do so
		306	(fvwm can do it).
68		307
69	=item block-graphics-to-ascii	308	=item block-graphics-to-ascii
70		309
71	A not very useful example of filtering all text output to the terminal,	310	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	311	by replacing all line-drawing characters (U+2500 .. U+259F) by a
73	similar-looking ascii character.	312	similar-looking ascii character.
		313
		314	=item digital-clock
		315
		316	Displays a digital clock using the built-in overlay.
		317
		318	=item remote-clipboard
		319
		320	Somewhat of a misnomer, this extension adds two menu entries to the
		321	selection popup that allows one to run external commands to store the
		322	selection somewhere and fetch it again.
		323
		324	We use it to implement a "distributed selection mechanism", which just
		325	means that one command uploads the file to a remote server, and another
		326	reads it.
		327
		328	The commands can be set using the C<URxvt.remote-selection.store> and
		329	C<URxvt.remote-selection.fetch> resources. The first should read the
		330	selection to store from STDIN (always in UTF-8), the second should provide
		331	the selection data on STDOUT (also in UTF-8).
		332
		333	The defaults (which are likely useless to you) use rsh and cat:
		334
		335	URxvt.remote-selection.store: rsh ruth 'cat >/tmp/distributed-selection'
		336	URxvt.remote-selection.fetch: rsh ruth 'cat /tmp/distributed-selection'
		337
		338	=item selection-pastebin
		339
		340	This is a little rarely useful extension that Uploads the selection as
		341	textfile to a remote site (or does other things). (The implementation is
		342	not currently secure for use in a multiuser environment as it writes to
		343	F</tmp> directly.).
		344
		345	It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
		346	i.e.
		347
		348	URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
		349
		350	Pressing this combination runs a command with C<%> replaced by the name of
		351	the textfile. This command can be set via a resource:
		352
		353	URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
		354
		355	And the default is likely not useful to anybody but the few people around
		356	here :)
		357
		358	The name of the textfile is the hex encoded md5 sum of the selection, so
		359	the same content should lead to the same filename.
		360
		361	After a successful upload the selection will be replaced by the text given
		362	in the C<selection-pastebin-url> resource (again, the % is the placeholder
		363	for the filename):
		364
		365	URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
		366
		367	I<Note to xrdb users:> xrdb uses the C preprocessor, which might interpret
		368	the double C</> characters as comment start. Use C<\057\057> instead,
		369	which works regardless of wether xrdb is used to parse the resource file
		370	or not.
74		371
75	=item example-refresh-hooks	372	=item example-refresh-hooks
76		373
77	Displays a very simple digital clock in the upper right corner of the	374	Displays a very simple digital clock in the upper right corner of the
78	window. Illustrates overwriting the refresh callbacks to create your own	375	window. Illustrates overwriting the refresh callbacks to create your own
79	overlays or changes.	376	overlays or changes.
80		377
81	=back	378	=back
		379
		380	=head1 API DOCUMENTATION
82		381
83	=head2 General API Considerations	382	=head2 General API Considerations
84		383
85	All objects (such as terminals, time watchers etc.) are typical	384	All objects (such as terminals, time watchers etc.) are typical
86	reference-to-hash objects. The hash can be used to store anything you	385	reference-to-hash objects. The hash can be used to store anything you
…		…
99	=over 4	398	=over 4
100		399
101	=item $text	400	=item $text
102		401
103	Rxvt-unicodes special way of encoding text, where one "unicode" character	402	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.	403	always represents one screen cell. See L<ROW_t> for a discussion of this format.
105		404
106	=item $string	405	=item $string
107		406
108	A perl text string, with an emphasis on I<text>. It can store all unicode	407	A perl text string, with an emphasis on I<text>. It can store all unicode
109	characters and is to be distinguished with text encoded in a specific	408	characters and is to be distinguished with text encoded in a specific
…		…
114	Either binary data or - more common - a text string encoded in a	413	Either binary data or - more common - a text string encoded in a
115	locale-specific way.	414	locale-specific way.
116		415
117	=back	416	=back
118		417
		418	=head2 Extension Objects
		419
		420	Every perl extension is a perl class. A separate perl object is created
		421	for each terminal, and each terminal has its own set of extenion objects,
		422	which are passed as the first parameter to hooks. So extensions can use
		423	their C<$self> object without having to think about clashes with other
		424	extensions or other terminals, with the exception of methods and members
		425	that begin with an underscore character C<_>: these are reserved for
		426	internal use.
		427
		428	Although it isn't a C<urxvt::term> object, you can call all methods of the
		429	C<urxvt::term> class on this object.
		430
		431	It has the following methods and data members:
		432
		433	=over 4
		434
		435	=item $urxvt_term = $self->{term}
		436
		437	Returns the C<urxvt::term> object associated with this instance of the
		438	extension. This member I<must not> be changed in any way.
		439
		440	=item $self->enable ($hook_name => $cb, [$hook_name => $cb..])
		441
		442	Dynamically enable the given hooks (named without the C<on_> prefix) for
		443	this extension, replacing any previous hook. This is useful when you want
		444	to overwrite time-critical hooks only temporarily.
		445
		446	=item $self->disable ($hook_name[, $hook_name..])
		447
		448	Dynamically disable the given hooks.
		449
		450	=back
		451
119	=head2 Hooks	452	=head2 Hooks
120		453
121	The following subroutines can be declared in extension files, and will be	454	The following subroutines can be declared in extension files, and will be
122	called whenever the relevant event happens.	455	called whenever the relevant event happens.
123		456
124	The first argument passed to them is an object private to each terminal	457	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	458	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		459
131	All of them must return a boolean value. If it is true, then the event	460	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,	461	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.	462	relevant action might not be carried out by the C++ code.
134		463
135	When in doubt, return a false value (preferably C<()>).	464	I<< When in doubt, return a false value (preferably C<()>). >>
136		465
137	=over 4	466	=over 4
138		467
139	=item on_init $term	468	=item on_init $term
140		469
141	Called after a new terminal object has been initialized, but before	470	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	471	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	472	call or deliver senseless data, as terminal size and other characteristics
144	have not yet been determined. You can safely query and change resources,	473	have not yet been determined. You can safely query and change resources
145	though.	474	and options, though. For many purposes the C<on_start> hook is a better
		475	place.
		476
		477	=item on_start $term
		478
		479	Called at the very end of initialisation of a new terminal, just before
		480	trying to map (display) the toplevel and returning to the main loop.
		481
		482	=item on_destroy $term
		483
		484	Called whenever something tries to destroy terminal, when the terminal is
		485	still fully functional (not for long, though).
146		486
147	=item on_reset $term	487	=item on_reset $term
148		488
149	Called after the screen is "reset" for any reason, such as resizing or	489	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	490	control sequences. Here is where you can react on changes to size-related
151	variables.	491	variables.
152		492
153	=item on_start $term	493	=item on_child_start $term, $pid
154		494
155	Called at the very end of initialisation of a new terminal, just before	495	Called just after the child process has been C<fork>ed.
156	returning to the mainloop.	496
		497	=item on_child_exit $term, $status
		498
		499	Called just after the child process has exited. C<$status> is the status
		500	from C<waitpid>.
157		501
158	=item on_sel_make $term, $eventtime	502	=item on_sel_make $term, $eventtime
159		503
160	Called whenever a selection has been made by the user, but before the	504	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	505	selection text is copied, so changes to the beginning, end or type of the
…		…
168		512
169	Called whenever a selection has been copied, but before the selection is	513	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	514	requested from the server. The selection text can be queried and changed
171	by calling C<< $term->selection >>.	515	by calling C<< $term->selection >>.
172		516
173	Returning a true value aborts selection grabbing. It will still be hilighted.	517	Returning a true value aborts selection grabbing. It will still be highlighted.
174		518
175	=item on_sel_extend $term	519	=item on_sel_extend $term
176		520
177	Called whenever the user tries to extend the selection (e.g. with a double	521	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	522	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	523	should extend the selection itself and return true to suppress the built-in
180	processing.	524	processing. This can happen multiple times, as long as the callback
		525	returns true, it will be called on every further click by the user and is
		526	supposed to enlarge the selection more and more, if possible.
181		527
182	See the F<selection> example extension.	528	See the F<selection> example extension.
183		529
184	=item on_view_change $term, $offset	530	=item on_view_change $term, $offset
185		531
186	Called whenever the view offset changes, i..e the user or program	532	Called whenever the view offset changes, i.e. the user or program
187	scrolls. Offset C<0> means display the normal terminal, positive values	533	scrolls. Offset C<0> means display the normal terminal, positive values
188	show this many lines of scrollback.	534	show this many lines of scrollback.
189		535
190	=item on_scroll_back $term, $lines, $saved	536	=item on_scroll_back $term, $lines, $saved
191		537
…		…
195		541
196	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,	542	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	543	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
198	number of lines that will be in the scrollback buffer.	544	number of lines that will be in the scrollback buffer.
199		545
200	=item on_tty_activity $term *NYI*
201
202	Called whenever the program(s) running in the urxvt window send output.
203
204	=item on_osc_seq $term, $string	546	=item on_osc_seq $term, $op, $args, $resp
		547
		548	Called on every OSC sequence and can be used to suppress it or modify its
		549	behaviour. The default should be to return an empty list. A true value
		550	suppresses execution of the request completely. Make sure you don't get
		551	confused by recursive invocations when you output an OSC sequence within
		552	this callback.
		553
		554	C<on_osc_seq_perl> should be used for new behaviour.
		555
		556	=item on_osc_seq_perl $term, $args, $resp
205		557
206	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =	558	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
207	operating system command) is processed. Cursor position and other state	559	operating system command) is processed. Cursor position and other state
208	information is up-to-date when this happens. For interoperability, the	560	information is up-to-date when this happens. For interoperability, the
209	string should start with the extension name and a colon, to distinguish	561	string should start with the extension name (sans -osc) and a semicolon,
210	it from commands for other extensions, and this might be enforced in the	562	to distinguish it from commands for other extensions, and this might be
211	future.	563	enforced in the future.
		564
		565	For example, C<overlay-osc> uses this:
		566
		567	sub on_osc_seq_perl {
		568	my ($self, $osc, $resp) = @_;
		569
		570	return unless $osc =~ s/^overlay;//;
		571
		572	... process remaining $osc string
		573	}
212		574
213	Be careful not ever to trust (in a security sense) the data you receive,	575	Be careful not ever to trust (in a security sense) the data you receive,
214	as its source can not easily be controleld (e-mail content, messages from	576	as its source can not easily be controlled (e-mail content, messages from
215	other users on the same system etc.).	577	other users on the same system etc.).
		578
		579	For responses, C<$resp> contains the end-of-args separator used by the
		580	sender.
216		581
217	=item on_add_lines $term, $string	582	=item on_add_lines $term, $string
218		583
219	Called whenever text is about to be output, with the text as argument. You	584	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	585	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	586	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	587	might be very slow, however, as your hook is called for B<all> text being
223	output.	588	output.
224		589
		590	=item on_tt_write $term, $octets
		591
		592	Called whenever some data is written to the tty/pty and can be used to
		593	suppress or filter tty input.
		594
225	=item on_line_update $term, $row	595	=item on_line_update $term, $row
226		596
227	Called whenever a line was updated or changed. Can be used to filter	597	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	598	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,	599	that are being shown will be filtered, and, due to performance reasons,
…		…
236	later with the already-modified line (e.g. if unrelated parts change), so	606	later with the already-modified line (e.g. if unrelated parts change), so
237	you cannot just toggle rendition bits, but only set them.	607	you cannot just toggle rendition bits, but only set them.
238		608
239	=item on_refresh_begin $term	609	=item on_refresh_begin $term
240		610
241	Called just before the screen gets redrawn. Can be used for overlay	611	Called just before the screen gets redrawn. Can be used for overlay or
242	or similar effects by modify terminal contents in refresh_begin, and	612	similar effects by modifying the terminal contents in refresh_begin, and
243	restoring them in refresh_end. The built-in overlay and selection display	613	restoring them in refresh_end. The built-in overlay and selection display
244	code is run after this hook, and takes precedence.	614	code is run after this hook, and takes precedence.
245		615
246	=item on_refresh_end $term	616	=item on_refresh_end $term
247		617
248	Called just after the screen gets redrawn. See C<on_refresh_begin>.	618	Called just after the screen gets redrawn. See C<on_refresh_begin>.
249		619
250	=item on_keyboard_command $term, $string	620	=item on_user_command $term, $string
251		621
252	Called whenever the user presses a key combination that has a	622	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>	623	a C<perl:string> action bound to a key, see description of the B<keysym>
254	resource in the @@RXVT_NAME@@(1) manpage).	624	resource in the @@RXVT_NAME@@(1) manpage).
		625
		626	The event is simply the action string. This interface is assumed to change
		627	slightly in the future.
		628
		629	=item on_resize_all_windows $tern, $new_width, $new_height
		630
		631	Called just after the new window size has been calculated, but before
		632	windows are actually being resized or hints are being set. If this hook
		633	returns TRUE, setting of the window hints is being skipped.
		634
		635	=item on_x_event $term, $event
		636
		637	Called on every X event received on the vt window (and possibly other
		638	windows). Should only be used as a last resort. Most event structure
		639	members are not passed.
		640
		641	=item on_root_event $term, $event
		642
		643	Like C<on_x_event>, but is called for events on the root window.
255		644
256	=item on_focus_in $term	645	=item on_focus_in $term
257		646
258	Called whenever the window gets the keyboard focus, before rxvt-unicode	647	Called whenever the window gets the keyboard focus, before rxvt-unicode
259	does focus in processing.	648	does focus in processing.
260		649
261	=item on_focus_out $term	650	=item on_focus_out $term
262		651
263	Called wheneever the window loses keyboard focus, before rxvt-unicode does	652	Called whenever the window loses keyboard focus, before rxvt-unicode does
264	focus out processing.	653	focus out processing.
265		654
		655	=item on_configure_notify $term, $event
		656
		657	=item on_property_notify $term, $event
		658
266	=item on_key_press $term, $event, $octets	659	=item on_key_press $term, $event, $keysym, $octets
267		660
268	=item on_key_release $term, $event	661	=item on_key_release $term, $event, $keysym
269		662
270	=item on_button_press $term, $event	663	=item on_button_press $term, $event
271		664
272	=item on_button_release $term, $event	665	=item on_button_release $term, $event
273		666
…		…
279		672
280	Called whenever the corresponding X event is received for the terminal If	673	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.	674	the hook returns true, then the even will be ignored by rxvt-unicode.
282		675
283	The event is a hash with most values as named by Xlib (see the XEvent	676	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	677	manpage), with the additional members C<row> and C<col>, which are the
285	and column under the mouse cursor.	678	(real, not screen-based) row and column under the mouse cursor.
286		679
287	C<on_key_press> additionally receives the string rxvt-unicode would	680	C<on_key_press> additionally receives the string rxvt-unicode would
288	output, if any, in locale-specific encoding.	681	output, if any, in locale-specific encoding.
289		682
290	subwindow.	683	subwindow.
291		684
		685	=item on_client_message $term, $event
		686
		687	=item on_wm_protocols $term, $event
		688
		689	=item on_wm_delete_window $term, $event
		690
		691	Called when various types of ClientMessage events are received (all with
		692	format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
		693
292	=back	694	=back
293		695
		696	=cut
		697
		698	package urxvt;
		699
		700	use utf8;
		701	use strict;
		702	use Carp ();
		703	use Scalar::Util ();
		704	use List::Util ();
		705
		706	our $VERSION = 1;
		707	our $TERM;
		708	our @TERM_INIT;
		709	our @TERM_EXT;
		710	our @HOOKNAME;
		711	our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
		712	our %OPTION;
		713
		714	our $LIBDIR;
		715	our $RESNAME;
		716	our $RESCLASS;
		717	our $RXVTNAME;
		718
		719	our $NOCHAR = chr 0xffff;
		720
294	=head2 Variables in the C<urxvt> Package	721	=head2 Variables in the C<urxvt> Package
295		722
296	=over 4	723	=over 4
		724
		725	=item $urxvt::LIBDIR
		726
		727	The rxvt-unicode library directory, where, among other things, the perl
		728	modules and scripts are stored.
		729
		730	=item $urxvt::RESCLASS, $urxvt::RESCLASS
		731
		732	The resource class and name rxvt-unicode uses to look up X resources.
		733
		734	=item $urxvt::RXVTNAME
		735
		736	The basename of the installed binaries, usually C<urxvt>.
297		737
298	=item $urxvt::TERM	738	=item $urxvt::TERM
299		739
300	The current terminal. This variable stores the current C<urxvt::term>	740	The current terminal. This variable stores the current C<urxvt::term>
301	object, whenever a callback/hook is executing.	741	object, whenever a callback/hook is executing.
302		742
		743	=item @urxvt::TERM_INIT
		744
		745	All code references in this array will be called as methods of the next newly
		746	created C<urxvt::term> object (during the C<on_init> phase). The array
		747	gets cleared before the code references that were in it are being executed,
		748	so references can push themselves onto it again if they so desire.
		749
		750	This complements to the perl-eval command line option, but gets executed
		751	first.
		752
		753	=item @urxvt::TERM_EXT
		754
		755	Works similar to C<@TERM_INIT>, but contains perl package/class names, which
		756	get registered as normal extensions after calling the hooks in C<@TERM_INIT>
		757	but before other extensions. Gets cleared just like C<@TERM_INIT>.
		758
303	=back	759	=back
304		760
305	=head2 Functions in the C<urxvt> Package	761	=head2 Functions in the C<urxvt> Package
306		762
307	=over 4	763	=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		764
317	=item urxvt::fatal $errormessage	765	=item urxvt::fatal $errormessage
318		766
319	Fatally aborts execution with the given error message. Avoid at all	767	Fatally aborts execution with the given error message. Avoid at all
320	costs! The only time this is acceptable is when the terminal process	768	costs! The only time this is acceptable is when the terminal process
…		…
327	that calls this function.	775	that calls this function.
328		776
329	Using this function has the advantage that its output ends up in the	777	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.	778	correct place, e.g. on stderr of the connecting urxvtc client.
331		779
		780	Messages have a size limit of 1023 bytes currently.
		781
		782	=item @terms = urxvt::termlist
		783
		784	Returns all urxvt::term objects that exist in this process, regardless of
		785	whether they are started, being destroyed etc., so be careful. Only term
		786	objects that have perl extensions attached will be returned (because there
		787	is no urxvt::term objet associated with others).
		788
332	=item $time = urxvt::NOW	789	=item $time = urxvt::NOW
333		790
334	Returns the "current time" (as per the event loop).	791	Returns the "current time" (as per the event loop).
335		792
336	=item urxvt::CurrentTime	793	=item urxvt::CurrentTime
337		794
338	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,	795	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
339	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,	796	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
340	Button4Mask, Button5Mask, AnyModifier	797	Button4Mask, Button5Mask, AnyModifier
341		798
		799	=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
		800	ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
		801	PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
		802	Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
		803	KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
		804	ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
		805	FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
		806
		807	=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
		808	EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
		809	GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
		810	UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
		811	ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
		812	CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
		813	SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
		814
342	Various constants for use in X events.	815	Various constants for use in X calls and event processing.
343		816
344	=back	817	=back
345		818
346	=head2 RENDITION	819	=head2 RENDITION
347		820
…		…
374		847
375	=item $background = urxvt::GET_BASEBG $rend	848	=item $background = urxvt::GET_BASEBG $rend
376		849
377	Return the foreground/background colour index, respectively.	850	Return the foreground/background colour index, respectively.
378		851
379	=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)	852	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
380		853
381	=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)	854	=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
		855
		856	=item $rend = urxvt::SET_COLOR $rend, $new_fg, $new_bg
382		857
383	Replace the foreground/background colour in the rendition mask with the	858	Replace the foreground/background colour in the rendition mask with the
384	specified one.	859	specified one.
385		860
386	=item $value = urxvt::GET_CUSTOM ($rend)	861	=item $value = urxvt::GET_CUSTOM $rend
387		862
388	Return the "custom" value: Every rendition has 5 bits for use by	863	Return the "custom" value: Every rendition has 5 bits for use by
389	extensions. They can be set and changed as you like and are initially	864	extensions. They can be set and changed as you like and are initially
390	zero.	865	zero.
391		866
392	=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)	867	=item $rend = urxvt::SET_CUSTOM $rend, $new_value
393		868
394	Change the custom value.	869	Change the custom value.
395		870
396	=back	871	=back
397		872
398	=cut	873	=cut
399		874
400	package urxvt;
401
402	use utf8;
403	use strict;
404	use Scalar::Util ();
405	use List::Util ();
406
407	our $TERM;
408	our @HOOKNAME;
409	our %OPTION;
410	our $LIBDIR;
411
412	BEGIN {	875	BEGIN {
413	urxvt->bootstrap;
414
415	# overwrite perl's warn	876	# overwrite perl's warn
416	*CORE::GLOBAL::warn = sub {	877	*CORE::GLOBAL::warn = sub {
417	my $msg = join "", @_;	878	my $msg = join "", @_;
418	$msg .= "\n"	879	$msg .= "\n"
419	unless $msg =~ /\n$/;	880	unless $msg =~ /\n$/;
420	urxvt::warn ($msg);	881	urxvt::warn ($msg);
421	};	882	};
422	}	883	}
423		884
424	my @hook_count;	885	no warnings 'utf8';
		886
425	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};	887	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
426		888
427	sub verbose {	889	sub verbose {
428	my ($level, $msg) = @_;	890	my ($level, $msg) = @_;
429	warn "$msg\n" if $level <= $verbosity;	891	warn "$msg\n" if $level <= $verbosity;
430	}	892	}
431		893
432	# find on_xxx subs in the package and register them
433	# as hooks
434	sub register_package($) {
435	my ($pkg) = @_;
436
437	for my $htype (0.. $#HOOKNAME) {
438	my $name = $HOOKNAME[$htype];
439
440	my $ref = $pkg->can ("on_" . lc $name)
441	or next;
442
443	$TERM->{_hook}[$htype]{$pkg} = $ref;
444	$hook_count[$htype]++
445	or set_should_invoke $htype, 1;
446	}
447	}
448
449	my $extension_pkg = "extension0000";
450	my %extension_pkg;	894	my %extension_pkg;
451		895
452	# load a single script into its own package, once only	896	# load a single script into its own package, once only
453	sub extension_package($) {	897	sub extension_package($) {
454	my ($path) = @_;	898	my ($path) = @_;
455		899
456	$extension_pkg{$path} ||= do {	900	$extension_pkg{$path} ||= do {
457	my $pkg = "urxvt::" . ($extension_pkg++);	901	$path =~ /([^\/\\]+)$/;
		902	my $pkg = $1;
		903	$pkg =~ s/[^[:word:]]/_/g;
		904	$pkg = "urxvt::ext::$pkg";
458		905
459	verbose 3, "loading extension '$path' into package '$pkg'";	906	verbose 3, "loading extension '$path' into package '$pkg'";
460		907
461	open my $fh, "<:raw", $path	908	open my $fh, "<:raw", $path
462	or die "$path: $!";	909	or die "$path: $!";
463		910
464	my $source = "package $pkg; use strict; use utf8;\n"	911	my $source =
465	. "use base urxvt::term::proxy::;\n"	912	"package $pkg; use strict; use utf8; no warnings 'utf8';\n"
466	. "#line 1 \"$path\"\n{\n"	913	. "#line 1 \"$path\"\n{\n"
467	. (do { local $/; <$fh> })	914	. (do { local $/; <$fh> })
468	. "\n};\n1";	915	. "\n};\n1";
469		916
		917	eval $source
470	eval $source or die "$path: $@";	918	or die "$path: $@";
471		919
472	$pkg	920	$pkg
473	}	921	}
474	}	922	}
475		923
…		…
480	local $TERM = shift;	928	local $TERM = shift;
481	my $htype = shift;	929	my $htype = shift;
482		930
483	if ($htype == 0) { # INIT	931	if ($htype == 0) { # INIT
484	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");	932	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
		933
		934	my %ext_arg;
		935
485		936	{
486	my %want_ext;	937	my @init = @TERM_INIT;
		938	@TERM_INIT = ();
		939	$_->($TERM) for @init;
		940	my @pkg = @TERM_EXT;
		941	@TERM_EXT = ();
		942	$TERM->register_package ($_) for @pkg;
		943	}
487		944
488	for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {	945	for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
489	if ($_ eq "default") {	946	if ($_ eq "default") {
490	$want_ext{$_}++ for qw(selection);	947	$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
491	} elsif (/-(.*)/) {	948	} elsif (/^-(.*)$/) {
492	delete $want_ext{$1};	949	delete $ext_arg{$1};
		950	} elsif (/^([^<]+)<(.*)>$/) {
		951	push @{ $ext_arg{$1} }, $2;
493	} else {	952	} else {
494	$want_ext{$_}++;	953	$ext_arg{$_} ||= [];
495	}	954	}
496	}	955	}
497		956
498	for my $ext (keys %want_ext) {	957	for my $ext (sort keys %ext_arg) {
499	my @files = grep -f $_, map "$_/$ext", @dirs;	958	my @files = grep -f $_, map "$_/$ext", @dirs;
500		959
501	if (@files) {	960	if (@files) {
502	register_package extension_package $files[0];	961	$TERM->register_package (extension_package $files[0], $ext_arg{$ext});
503	} else {	962	} else {
504	warn "perl extension '$ext' not found in perl library search path\n";	963	warn "perl extension '$ext' not found in perl library search path\n";
505	}	964	}
506	}	965	}
		966
		967	eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval");
		968	warn $@ if $@;
507	}	969	}
508		970
509	$retval = undef;	971	$retval = undef;
510		972
511	if (my $cb = $TERM->{_hook}[$htype]) {	973	if (my $cb = $TERM->{_hook}[$htype]) {
512	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"	974	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
513	if $verbosity >= 10;	975	if $verbosity >= 10;
514		976
515	keys %$cb;	977	for my $pkg (keys %$cb) {
		978	my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg}, @_) };
		979	$retval ||= $retval_;
516		980
517	while (my ($pkg, $cb) = each %$cb) {	981	if ($@) {
518	eval {	982	$TERM->ungrab; # better to lose the grab than the session
519	$retval = $cb->(	983	warn $@;
520	$TERM->{_pkg}{$pkg} ||= do {
521	my $proxy = bless { }, $pkg;
522	Scalar::Util::weaken ($proxy->{term} = $TERM);
523	$proxy
524	},
525	@_,
526	) and last;
527	};
528	warn $@ if $@;#d#
529	}
530	}
531
532	if ($htype == 1) { # DESTROY
533	# remove hooks if unused
534	if (my $hook = $TERM->{_hook}) {
535	for my $htype (0..$#$hook) {
536	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
537	or set_should_invoke $htype, 0;
538	}	984	}
539	}	985	}
540		986
		987	verbose 11, "$HOOKNAME[$htype] returning <$retval>"
		988	if $verbosity >= 11;
		989	}
		990
		991	if ($htype == 1) { # DESTROY
541	# clear package objects	992	# clear package objects
542	%$_ = () for values %{ $TERM->{_pkg} };	993	%$_ = () for values %{ $TERM->{_pkg} };
543		994
544	# clear package	995	# clear package
545	%$TERM = ();	996	%$TERM = ();
546	}	997	}
547		998
548	$retval	999	$retval
549	}	1000	}
550		1001
551	sub urxvt::term::proxy::AUTOLOAD {	1002	sub SET_COLOR($$$) {
552	$urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/	1003	SET_BGCOLOR (SET_FGCOLOR ($_[0], $_[1]), $_[2])
		1004	}
		1005
		1006	sub rend2mask {
		1007	no strict 'refs';
		1008	my ($str, $mask) = (@_, 0);
		1009	my %color = ( fg => undef, bg => undef );
		1010	my @failed;
		1011	for my $spec ( split /\s+/, $str ) {
		1012	if ( $spec =~ /^([fb]g)[_:-]?(\d+)/i ) {
		1013	$color{lc($1)} = $2;
		1014	} else {
		1015	my $neg = $spec =~ s/^[-^]//;
		1016	unless ( exists &{"RS_$spec"} ) {
		1017	push @failed, $spec;
		1018	next;
		1019	}
		1020	my $cur = &{"RS_$spec"};
		1021	if ( $neg ) {
		1022	$mask &= ~$cur;
		1023	} else {
		1024	$mask |= $cur;
		1025	}
		1026	}
		1027	}
		1028	($mask, @color{qw(fg bg)}, \@failed)
		1029	}
		1030
		1031	# urxvt::term::extension
		1032
		1033	package urxvt::term::extension;
		1034
		1035	sub enable {
		1036	my ($self, %hook) = @_;
		1037	my $pkg = $self->{_pkg};
		1038
		1039	while (my ($name, $cb) = each %hook) {
		1040	my $htype = $HOOKTYPE{uc $name};
		1041	defined $htype
		1042	or Carp::croak "unsupported hook type '$name'";
		1043
		1044	$self->set_should_invoke ($htype, +1)
		1045	unless exists $self->{term}{_hook}[$htype]{$pkg};
		1046
		1047	$self->{term}{_hook}[$htype]{$pkg} = $cb;
		1048	}
		1049	}
		1050
		1051	sub disable {
		1052	my ($self, @hook) = @_;
		1053	my $pkg = $self->{_pkg};
		1054
		1055	for my $name (@hook) {
		1056	my $htype = $HOOKTYPE{uc $name};
		1057	defined $htype
		1058	or Carp::croak "unsupported hook type '$name'";
		1059
		1060	$self->set_should_invoke ($htype, -1)
		1061	if delete $self->{term}{_hook}[$htype]{$pkg};
		1062	}
		1063	}
		1064
		1065	our $AUTOLOAD;
		1066
		1067	sub AUTOLOAD {
		1068	$AUTOLOAD =~ /:([^:]+)$/
553	or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";	1069	or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
554		1070
555	eval qq{	1071	eval qq{
556	sub $urxvt::term::proxy::AUTOLOAD {	1072	sub $AUTOLOAD {
557	my \$proxy = shift;	1073	my \$proxy = shift;
558	\$proxy->{term}->$1 (\@_)	1074	\$proxy->{term}->$1 (\@_)
559	}	1075	}
560	1	1076	1
561	} or die "FATAL: unable to compile method forwarder: $@";	1077	} or die "FATAL: unable to compile method forwarder: $@";
562		1078
563	goto &$urxvt::term::proxy::AUTOLOAD;	1079	goto &$AUTOLOAD;
564	}	1080	}
		1081
		1082	sub DESTROY {
		1083	# nop
		1084	}
		1085
		1086	# urxvt::destroy_hook
565		1087
566	sub urxvt::destroy_hook::DESTROY {	1088	sub urxvt::destroy_hook::DESTROY {
567	${$_[0]}->();	1089	${$_[0]}->();
568	}	1090	}
569		1091
570	sub urxvt::destroy_hook(&) {	1092	sub urxvt::destroy_hook(&) {
571	bless \shift, urxvt::destroy_hook::	1093	bless \shift, urxvt::destroy_hook::
572	}	1094	}
573		1095
		1096	package urxvt::anyevent;
		1097
		1098	=head2 The C<urxvt::anyevent> Class
		1099
		1100	The sole purpose of this class is to deliver an interface to the
		1101	C<AnyEvent> module - any module using it will work inside urxvt without
		1102	further programming. The only exception is that you cannot wait on
		1103	condition variables, but non-blocking condvar use is ok. What this means
		1104	is that you cannot use blocking APIs, but the non-blocking variant should
		1105	work.
		1106
		1107	=cut
		1108
		1109	our $VERSION = '3.4';
		1110
		1111	$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
		1112	push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
		1113
		1114	sub timer {
		1115	my ($class, %arg) = @_;
		1116
		1117	my $cb = $arg{cb};
		1118
		1119	urxvt::timer
		1120	->new
		1121	->start (urxvt::NOW + $arg{after})
		1122	->cb (sub {
		1123	$_[0]->stop; # need to cancel manually
		1124	$cb->();
		1125	})
		1126	}
		1127
		1128	sub io {
		1129	my ($class, %arg) = @_;
		1130
		1131	my $cb = $arg{cb};
		1132
		1133	bless [$arg{fh}, urxvt::iow
		1134	->new
		1135	->fd (fileno $arg{fh})
		1136	->events (($arg{poll} =~ /r/ ? 1 : 0)
		1137	| ($arg{poll} =~ /w/ ? 2 : 0))
		1138	->start
		1139	->cb (sub {
		1140	$cb->(($_[1] & 1 ? 'r' : '')
		1141	. ($_[1] & 2 ? 'w' : ''));
		1142	})],
		1143	urxvt::anyevent::
		1144	}
		1145
		1146	sub DESTROY {
		1147	$_[0][1]->stop;
		1148	}
		1149
		1150	sub one_event {
		1151	Carp::croak "AnyEvent->one_event blocking wait unsupported in urxvt, use a non-blocking API";
		1152	}
		1153
		1154	package urxvt::term;
		1155
574	=head2 The C<urxvt::term> Class	1156	=head2 The C<urxvt::term> Class
575		1157
576	=over 4	1158	=over 4
577		1159
		1160	=cut
		1161
		1162	# find on_xxx subs in the package and register them
		1163	# as hooks
		1164	sub register_package {
		1165	my ($self, $pkg, $argv) = @_;
		1166
		1167	no strict 'refs';
		1168
		1169	urxvt::verbose 6, "register package $pkg to $self";
		1170
		1171	@{"$pkg\::ISA"} = urxvt::term::extension::;
		1172
		1173	my $proxy = bless {
		1174	_pkg => $pkg,
		1175	argv => $argv,
		1176	}, $pkg;
		1177	Scalar::Util::weaken ($proxy->{term} = $self);
		1178
		1179	$self->{_pkg}{$pkg} = $proxy;
		1180
		1181	for my $name (@HOOKNAME) {
		1182	if (my $ref = $pkg->can ("on_" . lc $name)) {
		1183	$proxy->enable ($name => $ref);
		1184	}
		1185	}
		1186	}
		1187
		1188	=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
		1189
		1190	Creates a new terminal, very similar as if you had started it with system
		1191	C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
		1192	hash which defines the environment of the new terminal.
		1193
		1194	Croaks (and probably outputs an error message) if the new instance
		1195	couldn't be created. Returns C<undef> if the new instance didn't
		1196	initialise perl, and the terminal object otherwise. The C<init> and
		1197	C<start> hooks will be called before this call returns, and are free to
		1198	refer to global data (which is race free).
		1199
		1200	=cut
		1201
		1202	sub new {
		1203	my ($class, $env, @args) = @_;
		1204
		1205	$env or Carp::croak "environment hash missing in call to urxvt::term->new";
		1206	@args or Carp::croak "name argument missing in call to urxvt::term->new";
		1207
		1208	_new ([ map "$_=$env->{$_}", keys %$env ], \@args);
		1209	}
		1210
578	=item $term->destroy	1211	=item $term->destroy
579		1212
580	Destroy the terminal object (close the window, free resources etc.).	1213	Destroy the terminal object (close the window, free resources
		1214	etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
		1215	watchers (timers, io watchers) are still active.
		1216
		1217	=item $term->exec_async ($cmd[, @args])
		1218
		1219	Works like the combination of the C<fork>/C<exec> builtins, which executes
		1220	("starts") programs in the background. This function takes care of setting
		1221	the user environment before exec'ing the command (e.g. C<PATH>) and should
		1222	be preferred over explicit calls to C<exec> or C<system>.
		1223
		1224	Returns the pid of the subprocess or C<undef> on error.
		1225
		1226	=cut
		1227
		1228	sub exec_async {
		1229	my $self = shift;
		1230
		1231	my $pid = fork;
		1232
		1233	return $pid
		1234	if !defined $pid or $pid;
		1235
		1236	%ENV = %{ $self->env };
		1237
		1238	exec @_;
		1239	urxvt::_exit 255;
		1240	}
581		1241
582	=item $isset = $term->option ($optval[, $set])	1242	=item $isset = $term->option ($optval[, $set])
583		1243
584	Returns true if the option specified by C<$optval> is enabled, and	1244	Returns true if the option specified by C<$optval> is enabled, and
585	optionally change it. All option values are stored by name in the hash	1245	optionally change it. All option values are stored by name in the hash
586	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.	1246	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
587		1247
588	Here is a a likely non-exhaustive list of option names, please see the	1248	Here is a likely non-exhaustive list of option names, please see the
589	source file F</src/optinc.h> to see the actual list:	1249	source file F</src/optinc.h> to see the actual list:
590		1250
591	borderLess console cursorBlink cursorUnderline hold iconic insecure	1251	borderLess console cursorBlink cursorUnderline hold iconic insecure
592	intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage	1252	intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
593	pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating	1253	override-redirect pastableTabs pointerBlank reverseVideo scrollBar
594	scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer	1254	scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
595	secondaryScreen secondaryScroll skipBuiltinGlyphs transparent	1255	scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
596	tripleclickwords utmpInhibit visualBell	1256	transparent tripleclickwords utmpInhibit visualBell
597		1257
598	=item $value = $term->resource ($name[, $newval])	1258	=item $value = $term->resource ($name[, $newval])
599		1259
600	Returns the current resource value associated with a given name and	1260	Returns the current resource value associated with a given name and
601	optionally sets a new value. Setting values is most useful in the C<init>	1261	optionally sets a new value. Setting values is most useful in the C<init>
…		…
610	likely change).	1270	likely change).
611		1271
612	Please note that resource strings will currently only be freed when the	1272	Please note that resource strings will currently only be freed when the
613	terminal is destroyed, so changing options frequently will eat memory.	1273	terminal is destroyed, so changing options frequently will eat memory.
614		1274
615	Here is a a likely non-exhaustive list of resource names, not all of which	1275	Here is a likely non-exhaustive list of resource names, not all of which
616	are supported in every build, please see the source file F</src/rsinc.h>	1276	are supported in every build, please see the source file F</src/rsinc.h>
617	to see the actual list:	1277	to see the actual list:
618		1278
619	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont	1279	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
620	borderLess color cursorBlink cursorUnderline cutchars delete_key	1280	borderLess chdir color cursorBlink cursorUnderline cutchars delete_key
621	display_name embed ext_bwidth fade font geometry hold iconName	1281	display_name embed ext_bwidth fade font geometry hold iconName
622	imFont imLocale inputMethod insecure int_bwidth intensityStyles	1282	imFont imLocale inputMethod insecure int_bwidth intensityStyles
623	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier	1283	italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
624	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2	1284	mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
625	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd	1285	perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
626	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating	1286	preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
627	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput	1287	scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
628	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle	1288	scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
629	shade term_name title transparent transparent_all tripleclickwords	1289	secondaryScreen secondaryScroll shade term_name title
630	utmpInhibit visualBell	1290	transient_for transparent transparent_all tripleclickwords utmpInhibit
		1291	visualBell
631		1292
632	=cut	1293	=cut
633		1294
634	sub urxvt::term::resource($$;$) {	1295	sub resource($$;$) {
635	my ($self, $name) = (shift, shift);	1296	my ($self, $name) = (shift, shift);
636	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);	1297	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
637	&urxvt::term::_resource	1298	goto &urxvt::term::_resource
638	}	1299	}
		1300
		1301	=item $value = $term->x_resource ($pattern)
		1302
		1303	Returns the X-Resource for the given pattern, excluding the program or
		1304	class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
		1305	same value as used by this instance of rxvt-unicode. Returns C<undef> if no
		1306	resource with that pattern exists.
		1307
		1308	This method should only be called during the C<on_start> hook, as there is
		1309	only one resource database per display, and later invocations might return
		1310	the wrong resources.
		1311
		1312	=item $success = $term->parse_keysym ($keysym_spec, $command_string)
		1313
		1314	Adds a keymap translation exactly as specified via a resource. See the
		1315	C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
639		1316
640	=item $rend = $term->rstyle ([$new_rstyle])	1317	=item $rend = $term->rstyle ([$new_rstyle])
641		1318
642	Return and optionally change the current rendition. Text that is output by	1319	Return and optionally change the current rendition. Text that is output by
643	the terminal application will use this style.	1320	the terminal application will use this style.
…		…
654	=item ($row, $col) = $term->selection_end ([$row, $col])	1331	=item ($row, $col) = $term->selection_end ([$row, $col])
655		1332
656	Return the current values of the selection mark, begin or end positions,	1333	Return the current values of the selection mark, begin or end positions,
657	and optionally set them to new values.	1334	and optionally set them to new values.
658		1335
		1336	=item $term->selection_make ($eventtime[, $rectangular])
		1337
		1338	Tries to make a selection as set by C<selection_beg> and
		1339	C<selection_end>. If C<$rectangular> is true (default: false), a
		1340	rectangular selection will be made. This is the prefered function to make
		1341	a selection.
		1342
659	=item $success = $term->selection_grab ($eventtime)	1343	=item $success = $term->selection_grab ($eventtime)
660		1344
661	Try to request the primary selection from the server (for example, as set	1345	Try to request the primary selection text from the server (for example, as
662	by the next method).	1346	set by the next method). No visual feedback will be given. This function
		1347	is mostly useful from within C<on_sel_grab> hooks.
663		1348
664	=item $oldtext = $term->selection ([$newtext])	1349	=item $oldtext = $term->selection ([$newtext])
665		1350
666	Return the current selection text and optionally replace it by C<$newtext>.	1351	Return the current selection text and optionally replace it by C<$newtext>.
667		1352
668	#=item $term->overlay ($x, $y, $text)	1353	=item $term->overlay_simple ($x, $y, $text)
669	#	1354
670	#Create a simple multi-line overlay box. See the next method for details.	1355	Create a simple multi-line overlay box. See the next method for details.
671	#	1356
672	#=cut	1357	=cut
673	#	1358
674	#sub urxvt::term::scr_overlay {	1359	sub overlay_simple {
675	# my ($self, $x, $y, $text) = @_;	1360	my ($self, $x, $y, $text) = @_;
676	#	1361
677	# my @lines = split /\n/, $text;	1362	my @lines = split /\n/, $text;
678	#	1363
679	# my $w = 0;	1364	my $w = List::Util::max map $self->strwidth ($_), @lines;
680	# for (map $self->strwidth ($_), @lines) {	1365
681	# $w = $_ if $w < $_;
682	# }
683	#
684	# $self->scr_overlay_new ($x, $y, $w, scalar @lines);	1366	my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
685	# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;	1367	$overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
686	#}	1368
		1369	$overlay
		1370	}
687		1371
688	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])	1372	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
689		1373
690	Create a new (empty) overlay at the given position with the given	1374	Create a new (empty) overlay at the given position with the given
691	width/height. C<$rstyle> defines the initial rendition style	1375	width/height. C<$rstyle> defines the initial rendition style
…		…
726	C<$event> I<must> be the event causing the menu to pop up (a button event,	1410	C<$event> I<must> be the event causing the menu to pop up (a button event,
727	currently).	1411	currently).
728		1412
729	=cut	1413	=cut
730		1414
731	sub urxvt::term::popup {	1415	sub popup {
732	my ($self, $event) = @_;	1416	my ($self, $event) = @_;
733		1417
734	$self->grab ($event->{time}, 1)	1418	$self->grab ($event->{time}, 1)
735	or return;	1419	or return;
736		1420
…		…
758		1442
759	=item $string = $term->locale_decode ($octets)	1443	=item $string = $term->locale_decode ($octets)
760		1444
761	Convert the given locale-encoded octets into a perl string.	1445	Convert the given locale-encoded octets into a perl string.
762		1446
		1447	=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
		1448
		1449	XORs the rendition values in the given span with the provided value
		1450	(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
		1451	refresh hooks to provide effects similar to the selection.
		1452
		1453	=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
		1454
		1455	Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
		1456	whitespace will additionally be xored with the C<$rstyle2>, which defaults
		1457	to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
		1458	it instead. Both styles I<MUST NOT> contain font styles.
		1459
		1460	=item $term->scr_bell
		1461
		1462	Ring the bell!
		1463
763	=item $term->scr_add_lines ($string)	1464	=item $term->scr_add_lines ($string)
764		1465
765	Write the given text string to the screen, as if output by the application	1466	Write the given text string to the screen, as if output by the application
766	running inside the terminal. It may not contain command sequences (escape	1467	running inside the terminal. It may not contain command sequences (escape
767	codes), but is free to use line feeds, carriage returns and tabs. The	1468	codes), but is free to use line feeds, carriage returns and tabs. The
…		…
769		1470
770	Normally its not a good idea to use this function, as programs might be	1471	Normally its not a good idea to use this function, as programs might be
771	confused by changes in cursor position or scrolling. Its useful inside a	1472	confused by changes in cursor position or scrolling. Its useful inside a
772	C<on_add_lines> hook, though.	1473	C<on_add_lines> hook, though.
773		1474
		1475	=item $term->scr_change_screen ($screen)
		1476
		1477	Switch to given screen - 0 primary, 1 secondary.
		1478
774	=item $term->cmd_parse ($octets)	1479	=item $term->cmd_parse ($octets)
775		1480
776	Similar to C<scr_add_lines>, but the argument must be in the	1481	Similar to C<scr_add_lines>, but the argument must be in the
777	locale-specific encoding of the terminal and can contain command sequences	1482	locale-specific encoding of the terminal and can contain command sequences
778	(escape codes) that will be interpreted.	1483	(escape codes) that will be interpreted.
…		…
781		1486
782	Write the octets given in C<$data> to the tty (i.e. as program input). To	1487	Write the octets given in C<$data> to the tty (i.e. as program input). To
783	pass characters instead of octets, you should convert your strings first	1488	pass characters instead of octets, you should convert your strings first
784	to the locale-specific encoding using C<< $term->locale_encode >>.	1489	to the locale-specific encoding using C<< $term->locale_encode >>.
785		1490
		1491	=item $old_events = $term->pty_ev_events ([$new_events])
		1492
		1493	Replaces the event mask of the pty watcher by the given event mask. Can
		1494	be used to suppress input and output handling to the pty/tty. See the
		1495	description of C<< urxvt::timer->events >>. Make sure to always restore
		1496	the previous value.
		1497
		1498	=item $fd = $term->pty_fd
		1499
		1500	Returns the master file descriptor for the pty in use, or C<-1> if no pty
		1501	is used.
		1502
786	=item $windowid = $term->parent	1503	=item $windowid = $term->parent
787		1504
788	Return the window id of the toplevel window.	1505	Return the window id of the toplevel window.
789		1506
790	=item $windowid = $term->vt	1507	=item $windowid = $term->vt
791		1508
792	Return the window id of the terminal window.	1509	Return the window id of the terminal window.
793		1510
		1511	=item $term->vt_emask_add ($x_event_mask)
		1512
		1513	Adds the specified events to the vt event mask. Useful e.g. when you want
		1514	to receive pointer events all the times:
		1515
		1516	$term->vt_emask_add (urxvt::PointerMotionMask);
		1517
		1518	=item $term->focus_in
		1519
		1520	=item $term->focus_out
		1521
		1522	=item $term->key_press ($state, $keycode[, $time])
		1523
		1524	=item $term->key_release ($state, $keycode[, $time])
		1525
		1526	Deliver various fake events to to terminal.
		1527
794	=item $window_width = $term->width	1528	=item $window_width = $term->width
795		1529
796	=item $window_height = $term->height	1530	=item $window_height = $term->height
797		1531
798	=item $font_width = $term->fwidth	1532	=item $font_width = $term->fwidth
…		…
811		1545
812	=item $max_scrollback = $term->saveLines	1546	=item $max_scrollback = $term->saveLines
813		1547
814	=item $nrow_plus_saveLines = $term->total_rows	1548	=item $nrow_plus_saveLines = $term->total_rows
815		1549
816	=item $lines_in_scrollback = $term->nsaved	1550	=item $topmost_scrollback_row = $term->top_row
817		1551
818	Return various integers describing terminal characteristics.	1552	Return various integers describing terminal characteristics.
		1553
		1554	=item $x_display = $term->display_id
		1555
		1556	Return the DISPLAY used by rxvt-unicode.
		1557
		1558	=item $lc_ctype = $term->locale
		1559
		1560	Returns the LC_CTYPE category string used by this rxvt-unicode.
		1561
		1562	=item $env = $term->env
		1563
		1564	Returns a copy of the environment in effect for the terminal as a hashref
		1565	similar to C<\%ENV>.
		1566
		1567	=item @envv = $term->envv
		1568
		1569	Returns the environment as array of strings of the form C<VAR=VALUE>.
		1570
		1571	=item @argv = $term->argv
		1572
		1573	Return the argument vector as this terminal, similar to @ARGV, but
		1574	includes the program name as first element.
		1575
		1576	=cut
		1577
		1578	sub env {
		1579	+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), $_[0]->envv }
		1580	}
819		1581
820	=item $modifiermask = $term->ModLevel3Mask	1582	=item $modifiermask = $term->ModLevel3Mask
821		1583
822	=item $modifiermask = $term->ModMetaMask	1584	=item $modifiermask = $term->ModMetaMask
823		1585
824	=item $modifiermask = $term->ModNumLockMask	1586	=item $modifiermask = $term->ModNumLockMask
825		1587
826	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often	1588	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
827	AltGr), the meta key (often Alt) and the num lock key, if applicable.	1589	AltGr), the meta key (often Alt) and the num lock key, if applicable.
828		1590
		1591	=item $screen = $term->current_screen
		1592
		1593	Returns the currently displayed screen (0 primary, 1 secondary).
		1594
		1595	=item $cursor_is_hidden = $term->hidden_cursor
		1596
		1597	Returns whether the cursor is currently hidden or not.
		1598
829	=item $view_start = $term->view_start ([$newvalue])	1599	=item $view_start = $term->view_start ([$newvalue])
830		1600
831	Returns the negative row number of the topmost line. Minimum value is	1601	Returns the row number of the topmost displayed line. Maximum value is
832	C<0>, which displays the normal terminal contents. Larger values scroll	1602	C<0>, which displays the normal terminal contents. Lower values scroll
833	this many lines into the scrollback buffer.	1603	this many lines into the scrollback buffer.
834		1604
835	=item $term->want_refresh	1605	=item $term->want_refresh
836		1606
837	Requests a screen refresh. At the next opportunity, rxvt-unicode will	1607	Requests a screen refresh. At the next opportunity, rxvt-unicode will
…		…
840		1610
841	Used after changing terminal contents to display them.	1611	Used after changing terminal contents to display them.
842		1612
843	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])	1613	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
844		1614
845	Returns the text of the entire row with number C<$row_number>. Row C<0>	1615	Returns the text of the entire row with number C<$row_number>. Row C<< $term->top_row >>
846	is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost	1616	is the topmost terminal line, row C<< $term->nrow-1 >> is the bottommost
847	terminal line. The scrollback buffer starts at line C<-1> and extends to
848	line C<< -$term->nsaved >>. Nothing will be returned if a nonexistent line	1617	terminal line. Nothing will be returned if a nonexistent line
849	is requested.	1618	is requested.
850		1619
851	If C<$new_text> is specified, it will replace characters in the current	1620	If C<$new_text> is specified, it will replace characters in the current
852	line, starting at column C<$start_col> (default C<0>), which is useful	1621	line, starting at column C<$start_col> (default C<0>), which is useful
853	to replace only parts of a line. The font index in the rendition will	1622	to replace only parts of a line. The font index in the rendition will
854	automatically be updated.	1623	automatically be updated.
855		1624
856	C<$text> is in a special encoding: tabs and wide characters that use more	1625	C<$text> is in a special encoding: tabs and wide characters that use more
857	than one cell when displayed are padded with urxvt::NOCHAR characters	1626	than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
858	(C<chr 65535>). Characters with combining characters and other characters	1627	characters. Characters with combining characters and other characters that
859	that do not fit into the normal tetx encoding will be replaced with	1628	do not fit into the normal text encoding will be replaced with characters
860	characters in the private use area.	1629	in the private use area.
861		1630
862	You have to obey this encoding when changing text. The advantage is	1631	You have to obey this encoding when changing text. The advantage is
863	that C<substr> and similar functions work on screen cells and not on	1632	that C<substr> and similar functions work on screen cells and not on
864	characters.	1633	characters.
865		1634
…		…
916	Return the row number of the first/last row of the line, respectively.	1685	Return the row number of the first/last row of the line, respectively.
917		1686
918	=item $offset = $line->offset_of ($row, $col)	1687	=item $offset = $line->offset_of ($row, $col)
919		1688
920	Returns the character offset of the given row|col pair within the logical	1689	Returns the character offset of the given row|col pair within the logical
921	line.	1690	line. Works for rows outside the line, too, and returns corresponding
		1691	offsets outside the string.
922		1692
923	=item ($row, $col) = $line->coord_of ($offset)	1693	=item ($row, $col) = $line->coord_of ($offset)
924		1694
925	Translates a string offset into terminal coordinates again.	1695	Translates a string offset into terminal coordinates again.
926		1696
927	=back	1697	=back
928		1698
929	=cut	1699	=cut
930		1700
931	sub urxvt::term::line {	1701	sub line {
932	my ($self, $row) = @_;	1702	my ($self, $row) = @_;
933		1703
934	my $maxrow = $self->nrow - 1;	1704	my $maxrow = $self->nrow - 1;
935		1705
936	my ($beg, $end) = ($row, $row);	1706	my ($beg, $end) = ($row, $row);
…		…
1000	$offset / $self->{ncol} + $self->{beg},	1770	$offset / $self->{ncol} + $self->{beg},
1001	$offset % $self->{ncol}	1771	$offset % $self->{ncol}
1002	)	1772	)
1003	}	1773	}
1004		1774
1005	=item ($row, $col) = $line->coord_of ($offset)
1006	=item $text = $term->special_encode $string	1775	=item $text = $term->special_encode $string
1007		1776
1008	Converts a perl string into the special encoding used by rxvt-unicode,	1777	Converts a perl string into the special encoding used by rxvt-unicode,
1009	where one character corresponds to one screen cell. See	1778	where one character corresponds to one screen cell. See
1010	C<< $term->ROW_t >> for details.	1779	C<< $term->ROW_t >> for details.
1011		1780
1012	=item $string = $term->special_decode $text	1781	=item $string = $term->special_decode $text
1013		1782
1014	Converts rxvt-unicodes text reprsentation into a perl string. See	1783	Converts rxvt-unicodes text representation into a perl string. See
1015	C<< $term->ROW_t >> for details.	1784	C<< $term->ROW_t >> for details.
1016		1785
		1786	=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
		1787
		1788	=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
		1789
		1790	Register/unregister a synchronous button grab. See the XGrabButton
		1791	manpage.
		1792
		1793	=item $success = $term->grab ($eventtime[, $sync])
		1794
		1795	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
		1796	synchronous (C<$sync> is true). Also remembers the grab timestamp.
		1797
		1798	=item $term->allow_events_async
		1799
		1800	Calls XAllowEvents with AsyncBoth for the most recent grab.
		1801
		1802	=item $term->allow_events_sync
		1803
		1804	Calls XAllowEvents with SyncBoth for the most recent grab.
		1805
		1806	=item $term->allow_events_replay
		1807
		1808	Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
		1809	recent grab.
		1810
		1811	=item $term->ungrab
		1812
		1813	Calls XUngrab for the most recent grab. Is called automatically on
		1814	evaluation errors, as it is better to lose the grab in the error case as
		1815	the session.
		1816
		1817	=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
		1818
		1819	=item $atom_name = $term->XGetAtomName ($atom)
		1820
		1821	=item @atoms = $term->XListProperties ($window)
		1822
		1823	=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
		1824
		1825	=item $term->XChangeProperty ($window, $property, $type, $format, $octets)
		1826
		1827	=item $term->XDeleteProperty ($window, $property)
		1828
		1829	=item $window = $term->DefaultRootWindow
		1830
		1831	=item $term->XReparentWindow ($window, $parent, [$x, $y])
		1832
		1833	=item $term->XMapWindow ($window)
		1834
		1835	=item $term->XUnmapWindow ($window)
		1836
		1837	=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
		1838
		1839	=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
		1840
		1841	=item $term->XChangeInput ($window, $add_events[, $del_events])
		1842
		1843	Various X or X-related functions. The C<$term> object only serves as
		1844	the source of the display, otherwise those functions map more-or-less
		1845	directory onto the X functions of the same name.
		1846
1017	=back	1847	=back
1018		1848
		1849	=cut
		1850
		1851	package urxvt::popup;
		1852
1019	=head2 The C<urxvt::popup> Class	1853	=head2 The C<urxvt::popup> Class
1020		1854
1021	=over 4	1855	=over 4
1022		1856
1023	=cut	1857	=cut
1024
1025	package urxvt::popup;
1026		1858
1027	sub add_item {	1859	sub add_item {
1028	my ($self, $item) = @_;	1860	my ($self, $item) = @_;
1029		1861
		1862	$item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal};
		1863	$item->{rend}{hover} = "\x1b[0;30;46m" unless exists $item->{rend}{hover};
		1864	$item->{rend}{active} = "\x1b[m" unless exists $item->{rend}{active};
		1865
		1866	$item->{render} ||= sub { $_[0]{text} };
		1867
1030	push @{ $self->{item} }, $item;	1868	push @{ $self->{item} }, $item;
1031	}	1869	}
		1870
		1871	=item $popup->add_title ($title)
		1872
		1873	Adds a non-clickable title to the popup.
		1874
		1875	=cut
		1876
		1877	sub add_title {
		1878	my ($self, $title) = @_;
		1879
		1880	$self->add_item ({
		1881	rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
		1882	text => $title,
		1883	activate => sub { },
		1884	});
		1885	}
		1886
		1887	=item $popup->add_separator ([$sepchr])
		1888
		1889	Creates a separator, optionally using the character given as C<$sepchr>.
		1890
		1891	=cut
		1892
		1893	sub add_separator {
		1894	my ($self, $sep) = @_;
		1895
		1896	$sep ||= "=";
		1897
		1898	$self->add_item ({
		1899	rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
		1900	text => "",
		1901	render => sub { $sep x $self->{term}->ncol },
		1902	activate => sub { },
		1903	});
		1904	}
		1905
		1906	=item $popup->add_button ($text, $cb)
		1907
		1908	Adds a clickable button to the popup. C<$cb> is called whenever it is
		1909	selected.
		1910
		1911	=cut
1032		1912
1033	sub add_button {	1913	sub add_button {
1034	my ($self, $text, $cb) = @_;	1914	my ($self, $text, $cb) = @_;
1035		1915
1036	$self->add_item ({ type => "button", text => "[ $text ]", activate => $cb,	1916	$self->add_item ({ type => "button", text => $text, activate => $cb});
1037	render => sub { $_[0]{text} },
1038	});
1039	}	1917	}
		1918
		1919	=item $popup->add_toggle ($text, $initial_value, $cb)
		1920
		1921	Adds a toggle/checkbox item to the popup. The callback gets called
		1922	whenever it gets toggled, with a boolean indicating its new value as its
		1923	first argument.
		1924
		1925	=cut
1040		1926
1041	sub add_toggle {	1927	sub add_toggle {
1042	my ($self, $text, $cb, $value) = @_;	1928	my ($self, $text, $value, $cb) = @_;
1043		1929
1044	my $item; $item = {	1930	my $item; $item = {
1045	type => "button",	1931	type => "button",
1046	text => " $text",	1932	text => " $text",
1047	value => $value,	1933	value => $value,
1048	render => sub { ($item->{value} ? "✔" : " ") . $text },	1934	render => sub { ($_[0]{value} ? "* " : " ") . $text },
1049	activate => sub { $cb->($item->{value} = !$item->{value}); },	1935	activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
1050	};	1936	};
1051		1937
1052	$self->add_item ($item);	1938	$self->add_item ($item);
1053	}	1939	}
		1940
		1941	=item $popup->show
		1942
		1943	Displays the popup (which is initially hidden).
		1944
		1945	=cut
1054		1946
1055	sub show {	1947	sub show {
1056	my ($self) = @_;	1948	my ($self) = @_;
1057		1949
1058	local $urxvt::popup::self = $self;	1950	local $urxvt::popup::self = $self;
1059		1951
1060	urxvt->new ("--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0,	1952	my $env = $self->{term}->env;
		1953	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
		1954	delete $env->{LC_ALL};
		1955	$env->{LC_CTYPE} = $self->{term}->locale;
		1956
		1957	my $term = urxvt::term->new (
		1958	$env, "popup",
		1959	"--perl-lib" => "", "--perl-ext-common" => "",
		1960	"-pty-fd" => -1, "-sl" => 0,
		1961	"-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1061	"--transient-for" => $self->{term}->parent,	1962	"--transient-for" => $self->{term}->parent,
		1963	"-display" => $self->{term}->display_id,
1062	"-pe" => "urxvt-popup")	1964	"-pe" => "urxvt-popup",
1063	or die "unable to create popup window\n";	1965	) or die "unable to create popup window\n";
		1966
		1967	unless (delete $term->{urxvt_popup_init_done}) {
		1968	$term->ungrab;
		1969	$term->destroy;
		1970	die "unable to initialise popup window\n";
		1971	}
1064	}	1972	}
1065		1973
1066	sub DESTROY {	1974	sub DESTROY {
1067	my ($self) = @_;	1975	my ($self) = @_;
1068		1976
		1977	delete $self->{term}{_destroy}{$self};
1069	$self->{term}->ungrab;	1978	$self->{term}->ungrab;
1070	}	1979	}
		1980
		1981	=back
		1982
		1983	=cut
		1984
		1985	package urxvt::watcher;
1071		1986
1072	=head2 The C<urxvt::timer> Class	1987	=head2 The C<urxvt::timer> Class
1073		1988
1074	This class implements timer watchers/events. Time is represented as a	1989	This class implements timer watchers/events. Time is represented as a
1075	fractional number of seconds since the epoch. Example:	1990	fractional number of seconds since the epoch. Example:
…		…
1079	->new	1994	->new
1080	->interval (1)	1995	->interval (1)
1081	->cb (sub {	1996	->cb (sub {
1082	$term->{overlay}->set (0, 0,	1997	$term->{overlay}->set (0, 0,
1083	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);	1998	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
1084	});	1999	});
1085		2000
1086	=over 4	2001	=over 4
1087		2002
1088	=item $timer = new urxvt::timer	2003	=item $timer = new urxvt::timer
1089		2004
…		…
1113	Start the timer.	2028	Start the timer.
1114		2029
1115	=item $timer = $timer->start ($tstamp)	2030	=item $timer = $timer->start ($tstamp)
1116		2031
1117	Set the event trigger time to C<$tstamp> and start the timer.	2032	Set the event trigger time to C<$tstamp> and start the timer.
		2033
		2034	=item $timer = $timer->after ($delay)
		2035
		2036	Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1118		2037
1119	=item $timer = $timer->stop	2038	=item $timer = $timer->stop
1120		2039
1121	Stop the timer.	2040	Stop the timer.
1122		2041
…		…
1128		2047
1129	$term->{socket} = ...	2048	$term->{socket} = ...
1130	$term->{iow} = urxvt::iow	2049	$term->{iow} = urxvt::iow
1131	->new	2050	->new
1132	->fd (fileno $term->{socket})	2051	->fd (fileno $term->{socket})
1133	->events (1) # wait for read data	2052	->events (urxvt::EV_READ)
1134	->start	2053	->start
1135	->cb (sub {	2054	->cb (sub {
1136	my ($iow, $revents) = @_;	2055	my ($iow, $revents) = @_;
1137	# $revents must be 1 here, no need to check	2056	# $revents must be 1 here, no need to check
1138	sysread $term->{socket}, my $buf, 8192	2057	sysread $term->{socket}, my $buf, 8192
…		…
1151	Set the callback to be called when io events are triggered. C<$reventmask>	2070	Set the callback to be called when io events are triggered. C<$reventmask>
1152	is a bitset as described in the C<events> method.	2071	is a bitset as described in the C<events> method.
1153		2072
1154	=item $iow = $iow->fd ($fd)	2073	=item $iow = $iow->fd ($fd)
1155		2074
1156	Set the filedescriptor (not handle) to watch.	2075	Set the file descriptor (not handle) to watch.
1157		2076
1158	=item $iow = $iow->events ($eventmask)	2077	=item $iow = $iow->events ($eventmask)
1159		2078
1160	Set the event mask to watch. Bit #0 (value C<1>) enables watching for read	2079	Set the event mask to watch. The only allowed values are
1161	data, Bit #1 (value C<2>) enables watching for write data.	2080	C<urxvt::EV_READ> and C<urxvt::EV_WRITE>, which might be ORed
		2081	together, or C<urxvt::EV_NONE>.
1162		2082
1163	=item $iow = $iow->start	2083	=item $iow = $iow->start
1164		2084
1165	Start watching for requested events on the given handle.	2085	Start watching for requested events on the given handle.
1166		2086
1167	=item $iow = $iow->stop	2087	=item $iow = $iow->stop
1168		2088
1169	Stop watching for events on the given filehandle.	2089	Stop watching for events on the given file handle.
		2090
		2091	=back
		2092
		2093	=head2 The C<urxvt::iw> Class
		2094
		2095	This class implements idle watchers, that get called automatically when
		2096	the process is idle. They should return as fast as possible, after doing
		2097	some useful work.
		2098
		2099	=over 4
		2100
		2101	=item $iw = new urxvt::iw
		2102
		2103	Create a new idle watcher object in stopped state.
		2104
		2105	=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
		2106
		2107	Set the callback to be called when the watcher triggers.
		2108
		2109	=item $timer = $timer->start
		2110
		2111	Start the watcher.
		2112
		2113	=item $timer = $timer->stop
		2114
		2115	Stop the watcher.
		2116
		2117	=back
		2118
		2119	=head2 The C<urxvt::pw> Class
		2120
		2121	This class implements process watchers. They create an event whenever a
		2122	process exits, after which they stop automatically.
		2123
		2124	my $pid = fork;
		2125	...
		2126	$term->{pw} = urxvt::pw
		2127	->new
		2128	->start ($pid)
		2129	->cb (sub {
		2130	my ($pw, $exit_status) = @_;
		2131	...
		2132	});
		2133
		2134	=over 4
		2135
		2136	=item $pw = new urxvt::pw
		2137
		2138	Create a new process watcher in stopped state.
		2139
		2140	=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
		2141
		2142	Set the callback to be called when the timer triggers.
		2143
		2144	=item $pw = $timer->start ($pid)
		2145
		2146	Tells the watcher to start watching for process C<$pid>.
		2147
		2148	=item $pw = $pw->stop
		2149
		2150	Stop the watcher.
1170		2151
1171	=back	2152	=back
1172		2153
1173	=head1 ENVIRONMENT	2154	=head1 ENVIRONMENT
1174		2155
…		…
1177	This variable controls the verbosity level of the perl extension. Higher	2158	This variable controls the verbosity level of the perl extension. Higher
1178	numbers indicate more verbose output.	2159	numbers indicate more verbose output.
1179		2160
1180	=over 4	2161	=over 4
1181		2162
1182	=item =0 - only fatal messages	2163	=item == 0 - fatal messages
1183		2164
1184	=item =3 - script loading and management	2165	=item >= 3 - script loading and management
1185		2166
1186	=item =10 - all events received	2167	=item >=10 - all called hooks
		2168
		2169	=item >=11 - hook return values
1187		2170
1188	=back	2171	=back
1189		2172
1190	=head1 AUTHOR	2173	=head1 AUTHOR
1191		2174
…		…
1193	http://software.schmorp.de/pkg/rxvt-unicode	2176	http://software.schmorp.de/pkg/rxvt-unicode
1194		2177
1195	=cut	2178	=cut
1196		2179
1197	1	2180	1
		2181
		2182	# vim: sw=3:

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