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Revision 1.34 by root, Fri Jan 6 01:16:58 2006 UTC vs.
Revision 1.195 by sf-exg, Wed Jun 29 22:18:11 2011 UTC

…		…
17		17
18	@@RXVT_NAME@@ --perl-lib $HOME -pe grab_test	18	@@RXVT_NAME@@ --perl-lib $HOME -pe grab_test
19		19
20	=head1 DESCRIPTION	20	=head1 DESCRIPTION
21		21
22	Everytime a terminal object gets created, scripts specified via the	22	Every time a terminal object gets created, extension scripts specified via
23	C<perl> resource are loaded and associated with it.	23	the C<perl> resource are loaded and associated with it.
24		24
25	Scripts are compiled in a 'use strict' and 'use utf8' environment, and	25	Scripts are compiled in a 'use strict' and 'use utf8' environment, and
26	thus must be encoded as UTF-8.	26	thus must be encoded as UTF-8.
27		27
28	Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where	28	Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where
29	scripts will be shared (but not enabled) for all terminals.	29	scripts will be shared (but not enabled) for all terminals.
30		30
31	=head2 Prepackaged Extensions	31	You can disable the embedded perl interpreter by setting both "perl-ext"
		32	and "perl-ext-common" resources to the empty string.
32		33
		34	=head1 PREPACKAGED EXTENSIONS
		35
33	This section describes the extensiosn delivered with this version. You can	36	This section describes the extensions delivered with this release. You can
34	find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.	37	find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.
35		38
36	You can activate them like this:	39	You can activate them like this:
37		40
38	@@RXVT_NAME@@ -pe <extensionname>	41	@@RXVT_NAME@@ -pe <extensionname>
39		42
		43	Or by adding them to the resource for extensions loaded by default:
		44
		45	URxvt.perl-ext-common: default,selection-autotransform
		46
40	=over 4	47	=over 4
41		48
42	=item selection	49	=item selection (enabled by default)
43		50
44	Intelligent selection. This extension tries to be more intelligent when	51	(More) intelligent selection. This extension tries to be more intelligent
45	the user extends selections (double-click). Right now, it tries to select	52	when the user extends selections (double-click and further clicks). Right
46	urls and complete shell-quoted arguments, which is very convenient, too,	53	now, it tries to select words, urls and complete shell-quoted
47	if your F<ls> supports C<--quoting-style=shell>.	54	arguments, which is very convenient, too, if your F<ls> supports
		55	C<--quoting-style=shell>.
48		56
49	It also offers the following bindable event:	57	A double-click usually selects the word under the cursor, further clicks
		58	will enlarge the selection.
		59
		60	The selection works by trying to match a number of regexes and displaying
		61	them in increasing order of length. You can add your own regexes by
		62	specifying resources of the form:
		63
		64	URxvt.selection.pattern-0: perl-regex
		65	URxvt.selection.pattern-1: perl-regex
		66	...
		67
		68	The index number (0, 1...) must not have any holes, and each regex must
		69	contain at least one pair of capturing parentheses, which will be used for
		70	the match. For example, the following adds a regex that matches everything
		71	between two vertical bars:
		72
		73	URxvt.selection.pattern-0: \\|([^|]+)\\|
		74
		75	Another example: Programs I use often output "absolute path: " at the
		76	beginning of a line when they process multiple files. The following
		77	pattern matches the filename (note, there is a single space at the very
		78	end):
		79
		80	URxvt.selection.pattern-0: ^(/[^:]+):\
		81
		82	You can look at the source of the selection extension to see more
		83	interesting uses, such as parsing a line from beginning to end.
		84
		85	This extension also offers following bindable keyboard commands:
50		86
51	=over 4	87	=over 4
52		88
53	=item rot13	89	=item rot13
54		90
…		…
56		92
57	URxvt.keysym.C-M-r: perl:selection:rot13	93	URxvt.keysym.C-M-r: perl:selection:rot13
58		94
59	=back	95	=back
60		96
		97	=item option-popup (enabled by default)
		98
		99	Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at
		100	runtime.
		101
		102	Other extensions can extend this popup menu by pushing a code reference
		103	onto C<@{ $term->{option_popup_hook} }>, which gets called whenever the
		104	popup is being displayed.
		105
		106	Its sole argument is the popup menu, which can be modified. It should
		107	either return nothing or a string, the initial boolean value and a code
		108	reference. The string will be used as button text and the code reference
		109	will be called when the toggle changes, with the new boolean value as
		110	first argument.
		111
		112	The following will add an entry C<myoption> that changes
		113	C<< $self->{myoption} >>:
		114
		115	push @{ $self->{term}{option_popup_hook} }, sub {
		116	("my option" => $myoption, sub { $self->{myoption} = $_[0] })
		117	};
		118
		119	=item selection-popup (enabled by default)
		120
		121	Binds a popup menu to Ctrl-Button3 that lets you convert the selection
		122	text into various other formats/action (such as uri unescaping, perl
		123	evaluation, web-browser starting etc.), depending on content.
		124
		125	Other extensions can extend this popup menu by pushing a code reference
		126	onto C<@{ $term->{selection_popup_hook} }>, which gets called whenever the
		127	popup is being displayed.
		128
		129	Its sole argument is the popup menu, which can be modified. The selection
		130	is in C<$_>, which can be used to decide whether to add something or not.
		131	It should either return nothing or a string and a code reference. The
		132	string will be used as button text and the code reference will be called
		133	when the button gets activated and should transform C<$_>.
		134
		135	The following will add an entry C<a to b> that transforms all C<a>s in
		136	the selection to C<b>s, but only if the selection currently contains any
		137	C<a>s:
		138
		139	push @{ $self->{term}{selection_popup_hook} }, sub {
		140	/a/ ? ("a to b" => sub { s/a/b/g }
		141	: ()
		142	};
		143
		144	=item searchable-scrollback<hotkey> (enabled by default)
		145
		146	Adds regex search functionality to the scrollback buffer, triggered
		147	by a hotkey (default: C<M-s>). While in search mode, normal terminal
		148	input/output is suspended and a regex is displayed at the bottom of the
		149	screen.
		150
		151	Inputting characters appends them to the regex and continues incremental
		152	search. C<BackSpace> removes a character from the regex, C<Up> and C<Down>
		153	search upwards/downwards in the scrollback buffer, C<End> jumps to the
		154	bottom. C<Escape> leaves search mode and returns to the point where search
		155	was started, while C<Enter> or C<Return> stay at the current position and
		156	additionally stores the first match in the current line into the primary
		157	selection if the C<Shift> modifier is active.
		158
		159	The regex defaults to "(?i)", resulting in a case-insensitive search. To
		160	get a case-sensitive search you can delete this prefix using C<BackSpace>
		161	or simply use an uppercase character which removes the "(?i)" prefix.
		162
		163	See L<perlre> for more info about perl regular expression syntax.
		164
		165	=item readline (enabled by default)
		166
		167	A support package that tries to make editing with readline easier. At
		168	the moment, it reacts to clicking shift-left mouse button by trying to
		169	move the text cursor to this position. It does so by generating as many
		170	cursor-left or cursor-right keypresses as required (this only works
		171	for programs that correctly support wide characters).
		172
		173	To avoid too many false positives, this is only done when:
		174
		175	=over 4
		176
		177	=item - the tty is in ICANON state.
		178
		179	=item - the text cursor is visible.
		180
		181	=item - the primary screen is currently being displayed.
		182
		183	=item - the mouse is on the same (multi-row-) line as the text cursor.
		184
		185	=back
		186
		187	The normal selection mechanism isn't disabled, so quick successive clicks
		188	might interfere with selection creation in harmless ways.
		189
		190	=item selection-autotransform
		191
		192	This selection allows you to do automatic transforms on a selection
		193	whenever a selection is made.
		194
		195	It works by specifying perl snippets (most useful is a single C<s///>
		196	operator) that modify C<$_> as resources:
		197
		198	URxvt.selection-autotransform.0: transform
		199	URxvt.selection-autotransform.1: transform
		200	...
		201
		202	For example, the following will transform selections of the form
		203	C<filename:number>, often seen in compiler messages, into C<vi +$filename
		204	$word>:
		205
		206	URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
		207
		208	And this example matches the same,but replaces it with vi-commands you can
		209	paste directly into your (vi :) editor:
		210
		211	URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
		212
		213	Of course, this can be modified to suit your needs and your editor :)
		214
		215	To expand the example above to typical perl error messages ("XXX at
		216	FILENAME line YYY."), you need a slightly more elaborate solution:
		217
		218	URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
		219	URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
		220
		221	The first line tells the selection code to treat the unchanging part of
		222	every error message as a selection pattern, and the second line transforms
		223	the message into vi commands to load the file.
		224
		225	=item tabbed
		226
		227	This transforms the terminal into a tabbar with additional terminals, that
		228	is, it implements what is commonly referred to as "tabbed terminal". The topmost line
		229	displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
		230	button per tab.
		231
		232	Clicking a button will activate that tab. Pressing B<Shift-Left> and
		233	B<Shift-Right> will switch to the tab left or right of the current one,
		234	while B<Shift-Down> creates a new tab.
		235
		236	The tabbar itself can be configured similarly to a normal terminal, but
		237	with a resource class of C<URxvt.tabbed>. In addition, it supports the
		238	following four resources (shown with defaults):
		239
		240	URxvt.tabbed.tabbar-fg: <colour-index, default 3>
		241	URxvt.tabbed.tabbar-bg: <colour-index, default 0>
		242	URxvt.tabbed.tab-fg: <colour-index, default 0>
		243	URxvt.tabbed.tab-bg: <colour-index, default 1>
		244
		245	See I<COLOR AND GRAPHICS> in the @@RXVT_NAME@@(1) manpage for valid
		246	indices.
		247
		248	=item matcher
		249
		250	Uses per-line display filtering (C<on_line_update>) to underline text
		251	matching a certain pattern and make it clickable. When clicked with the
		252	mouse button specified in the C<matcher.button> resource (default 2, or
		253	middle), the program specified in the C<matcher.launcher> resource
		254	(default, the C<urlLauncher> resource, C<sensible-browser>) will be started
		255	with the matched text as first argument. The default configuration is
		256	suitable for matching URLs and launching a web browser, like the
		257	former "mark-urls" extension.
		258
		259	The default pattern to match URLs can be overridden with the
		260	C<matcher.pattern.0> resource, and additional patterns can be specified
		261	with numbered patterns, in a manner similar to the "selection" extension.
		262	The launcher can also be overridden on a per-pattern basis.
		263
		264	It is possible to activate the most recently seen match from the keyboard.
		265	Simply bind a keysym to "perl:matcher" as seen in the example below.
		266
		267	Example configuration:
		268
		269	URxvt.perl-ext: default,matcher
		270	URxvt.urlLauncher: sensible-browser
		271	URxvt.keysym.C-Delete: perl:matcher
		272	URxvt.matcher.button: 1
		273	URxvt.matcher.pattern.1: \\bwww\\.[\\w-]+\\.[\\w./?&@#-]*[\\w/-]
		274	URxvt.matcher.pattern.2: \\B(/\\S+?):(\\d+)(?=:|$)
		275	URxvt.matcher.launcher.2: gvim +$2 $1
		276
		277	=item xim-onthespot
		278
		279	This (experimental) perl extension implements OnTheSpot editing. It does
		280	not work perfectly, and some input methods don't seem to work well with
		281	OnTheSpot editing in general, but it seems to work at least for SCIM and
		282	kinput2.
		283
		284	You enable it by specifying this extension and a preedit style of
		285	C<OnTheSpot>, i.e.:
		286
		287	@@RXVT_NAME@@ -pt OnTheSpot -pe xim-onthespot
		288
		289	=item kuake<hotkey>
		290
		291	A very primitive quake-console-like extension. It was inspired by a
		292	description of how the programs C<kuake> and C<yakuake> work: Whenever the
		293	user presses a global accelerator key (by default C<F10>), the terminal
		294	will show or hide itself. Another press of the accelerator key will hide
		295	or show it again.
		296
		297	Initially, the window will not be shown when using this extension.
		298
		299	This is useful if you need a single terminal that is not using any desktop
		300	space most of the time but is quickly available at the press of a key.
		301
		302	The accelerator key is grabbed regardless of any modifiers, so this
		303	extension will actually grab a physical key just for this function.
		304
		305	If you want a quake-like animation, tell your window manager to do so
		306	(fvwm can do it).
		307
		308	=item overlay-osc
		309
		310	This extension implements some OSC commands to display timed popups on the
		311	screen - useful for status displays from within scripts. You have to read
		312	the sources for more info.
		313
		314	=item block-graphics-to-ascii
		315
		316	A not very useful example of filtering all text output to the terminal
		317	by replacing all line-drawing characters (U+2500 .. U+259F) by a
		318	similar-looking ascii character.
		319
61	=item digital-clock	320	=item digital-clock
62		321
63	Displays a digital clock using the built-in overlay.	322	Displays a digital clock using the built-in overlay.
		323
		324	=item remote-clipboard
		325
		326	Somewhat of a misnomer, this extension adds two menu entries to the
		327	selection popup that allows one to run external commands to store the
		328	selection somewhere and fetch it again.
		329
		330	We use it to implement a "distributed selection mechanism", which just
		331	means that one command uploads the file to a remote server, and another
		332	reads it.
		333
		334	The commands can be set using the C<URxvt.remote-selection.store> and
		335	C<URxvt.remote-selection.fetch> resources. The first should read the
		336	selection to store from STDIN (always in UTF-8), the second should provide
		337	the selection data on STDOUT (also in UTF-8).
		338
		339	The defaults (which are likely useless to you) use rsh and cat:
		340
		341	URxvt.remote-selection.store: rsh ruth 'cat >/tmp/distributed-selection'
		342	URxvt.remote-selection.fetch: rsh ruth 'cat /tmp/distributed-selection'
		343
		344	=item selection-pastebin
		345
		346	This is a little rarely useful extension that uploads the selection as
		347	textfile to a remote site (or does other things). (The implementation is
		348	not currently secure for use in a multiuser environment as it writes to
		349	F</tmp> directly.).
		350
		351	It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
		352	i.e.
		353
		354	URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
		355
		356	Pressing this combination runs a command with C<%> replaced by the name of
		357	the textfile. This command can be set via a resource:
		358
		359	URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
		360
		361	And the default is likely not useful to anybody but the few people around
		362	here :)
		363
		364	The name of the textfile is the hex encoded md5 sum of the selection, so
		365	the same content should lead to the same filename.
		366
		367	After a successful upload the selection will be replaced by the text given
		368	in the C<selection-pastebin-url> resource (again, the % is the placeholder
		369	for the filename):
		370
		371	URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
		372
		373	I<Note to xrdb users:> xrdb uses the C preprocessor, which might interpret
		374	the double C</> characters as comment start. Use C<\057\057> instead,
		375	which works regardless of whether xrdb is used to parse the resource file
		376	or not.
		377
		378	=item macosx-clipboard and macosx-clipboard-native
		379
		380	These two modules implement an extended clipboard for Mac OS X. They are
		381	used like this:
		382
		383	URxvt.perl-ext-common: default,macosx-clipboard
		384	URxvt.keysym.M-c: perl:macosx-clipboard:copy
		385	URxvt.keysym.M-v: perl:macosx-clipboard:paste
		386
		387	The difference between them is that the native variant requires a
		388	perl from apple's devkit or so, and C<macosx-clipboard> requires the
		389	C<Mac::Pasteboard> module, works with other perls, has fewer bugs, is
		390	simpler etc. etc.
64		391
65	=item example-refresh-hooks	392	=item example-refresh-hooks
66		393
67	Displays a very simple digital clock in the upper right corner of the	394	Displays a very simple digital clock in the upper right corner of the
68	window. Illustrates overwriting the refresh callbacks to create your own	395	window. Illustrates overwriting the refresh callbacks to create your own
69	overlays or changes.	396	overlays or changes.
70		397
71	=item mark-urls	398	=item confirm-paste
72		399
73	A not very useful example of filtering all text output to the terminal, by	400	Displays a confirmation dialog when a paste containing at least a full
74	underlining all urls that matches a certain regex (i.e. some urls :). It	401	line is detected.
75	is not very useful because urls that are output in multiple steps (e.g.
76	when typing them) do not get marked.
77		402
78	=back	403	=back
		404
		405	=head1 API DOCUMENTATION
79		406
80	=head2 General API Considerations	407	=head2 General API Considerations
81		408
82	All objects (such as terminals, time watchers etc.) are typical	409	All objects (such as terminals, time watchers etc.) are typical
83	reference-to-hash objects. The hash can be used to store anything you	410	reference-to-hash objects. The hash can be used to store anything you
…		…
95		422
96	=over 4	423	=over 4
97		424
98	=item $text	425	=item $text
99		426
100	Rxvt-unicodes special way of encoding text, where one "unicode" character	427	Rxvt-unicode's special way of encoding text, where one "unicode" character
101	always represents one screen cell. See L<row_t> for a discussion of this format.	428	always represents one screen cell. See L<ROW_t> for a discussion of this format.
102		429
103	=item $string	430	=item $string
104		431
105	A perl text string, with an emphasis on I<text>. It can store all unicode	432	A perl text string, with an emphasis on I<text>. It can store all unicode
106	characters and is to be distinguished with text encoded in a specific	433	characters and is to be distinguished with text encoded in a specific
…		…
111	Either binary data or - more common - a text string encoded in a	438	Either binary data or - more common - a text string encoded in a
112	locale-specific way.	439	locale-specific way.
113		440
114	=back	441	=back
115		442
		443	=head2 Extension Objects
		444
		445	Every perl extension is a perl class. A separate perl object is created
		446	for each terminal, and each terminal has its own set of extension objects,
		447	which are passed as the first parameter to hooks. So extensions can use
		448	their C<$self> object without having to think about clashes with other
		449	extensions or other terminals, with the exception of methods and members
		450	that begin with an underscore character C<_>: these are reserved for
		451	internal use.
		452
		453	Although it isn't a C<urxvt::term> object, you can call all methods of the
		454	C<urxvt::term> class on this object.
		455
		456	It has the following methods and data members:
		457
		458	=over 4
		459
		460	=item $urxvt_term = $self->{term}
		461
		462	Returns the C<urxvt::term> object associated with this instance of the
		463	extension. This member I<must not> be changed in any way.
		464
		465	=item $self->enable ($hook_name => $cb, [$hook_name => $cb..])
		466
		467	Dynamically enable the given hooks (named without the C<on_> prefix) for
		468	this extension, replacing any previous hook. This is useful when you want
		469	to overwrite time-critical hooks only temporarily.
		470
		471	=item $self->disable ($hook_name[, $hook_name..])
		472
		473	Dynamically disable the given hooks.
		474
		475	=back
		476
116	=head2 Hooks	477	=head2 Hooks
117		478
118	The following subroutines can be declared in loaded scripts, and will be	479	The following subroutines can be declared in extension files, and will be
119	called whenever the relevant event happens.	480	called whenever the relevant event happens.
120		481
121	The first argument passed to them is an object private to each terminal	482	The first argument passed to them is an extension object as described in
122	and extension package. You can call all C<urxvt::term> methods on it, but	483	the in the C<Extension Objects> section.
123	its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
124	object that is shared between all packages is stored in the C<term>
125	member.
126		484
127	All of them must return a boolean value. If it is true, then the event	485	B<All> of these hooks must return a boolean value. If any of the called
128	counts as being I<consumed>, and the invocation of other hooks is skipped,	486	hooks returns true, then the event counts as being I<consumed>, and the
129	and the relevant action might not be carried out by the C++ code.	487	relevant action might not be carried out by the C++ code.
130		488
131	When in doubt, return a false value (preferably C<()>).	489	I<< When in doubt, return a false value (preferably C<()>). >>
132		490
133	=over 4	491	=over 4
134		492
135	=item on_init $term	493	=item on_init $term
136		494
137	Called after a new terminal object has been initialized, but before	495	Called after a new terminal object has been initialized, but before
138	windows are created or the command gets run.	496	windows are created or the command gets run. Most methods are unsafe to
		497	call or deliver senseless data, as terminal size and other characteristics
		498	have not yet been determined. You can safely query and change resources
		499	and options, though. For many purposes the C<on_start> hook is a better
		500	place.
		501
		502	=item on_start $term
		503
		504	Called at the very end of initialisation of a new terminal, just before
		505	trying to map (display) the toplevel and returning to the main loop.
		506
		507	=item on_destroy $term
		508
		509	Called whenever something tries to destroy terminal, when the terminal is
		510	still fully functional (not for long, though).
139		511
140	=item on_reset $term	512	=item on_reset $term
141		513
142	Called after the screen is "reset" for any reason, such as resizing or	514	Called after the screen is "reset" for any reason, such as resizing or
143	control sequences. Here is where you can react on changes to size-related	515	control sequences. Here is where you can react on changes to size-related
144	variables.	516	variables.
145		517
146	=item on_start $term	518	=item on_child_start $term, $pid
147		519
148	Called at the very end of initialisation of a new terminal, just before	520	Called just after the child process has been C<fork>ed.
149	returning to the mainloop.	521
		522	=item on_child_exit $term, $status
		523
		524	Called just after the child process has exited. C<$status> is the status
		525	from C<waitpid>.
150		526
151	=item on_sel_make $term, $eventtime	527	=item on_sel_make $term, $eventtime
152		528
153	Called whenever a selection has been made by the user, but before the	529	Called whenever a selection has been made by the user, but before the
154	selection text is copied, so changes to the beginning, end or type of the	530	selection text is copied, so changes to the beginning, end or type of the
…		…
161		537
162	Called whenever a selection has been copied, but before the selection is	538	Called whenever a selection has been copied, but before the selection is
163	requested from the server. The selection text can be queried and changed	539	requested from the server. The selection text can be queried and changed
164	by calling C<< $term->selection >>.	540	by calling C<< $term->selection >>.
165		541
166	Returning a true value aborts selection grabbing. It will still be hilighted.	542	Returning a true value aborts selection grabbing. It will still be highlighted.
167		543
168	=item on_sel_extend $term	544	=item on_sel_extend $term
169		545
170	Called whenever the user tries to extend the selection (e.g. with a double	546	Called whenever the user tries to extend the selection (e.g. with a double
171	click) and is either supposed to return false (normal operation), or	547	click) and is either supposed to return false (normal operation), or
172	should extend the selection itelf and return true to suppress the built-in	548	should extend the selection itself and return true to suppress the built-in
173	processing.	549	processing. This can happen multiple times, as long as the callback
		550	returns true, it will be called on every further click by the user and is
		551	supposed to enlarge the selection more and more, if possible.
174		552
175	See the F<selection> example extension.	553	See the F<selection> example extension.
176		554
177	=item on_focus_in $term
178
179	Called whenever the window gets the keyboard focus, before urxvt does
180	focus in processing.
181
182	=item on_focus_out $term
183
184	Called wheneever the window loses keyboard focus, before urxvt does focus
185	out processing.
186
187	=item on_view_change $term, $offset	555	=item on_view_change $term, $offset
188		556
189	Called whenever the view offset changes, i..e the user or program	557	Called whenever the view offset changes, i.e. the user or program
190	scrolls. Offset C<0> means display the normal terminal, positive values	558	scrolls. Offset C<0> means display the normal terminal, positive values
191	show this many lines of scrollback.	559	show this many lines of scrollback.
192		560
193	=item on_scroll_back $term, $lines, $saved	561	=item on_scroll_back $term, $lines, $saved
194		562
…		…
198		566
199	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,	567	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
200	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total	568	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
201	number of lines that will be in the scrollback buffer.	569	number of lines that will be in the scrollback buffer.
202		570
203	=item on_tty_activity $term *NYI*
204
205	Called whenever the program(s) running in the urxvt window send output.
206
207	=item on_osc_seq $term, $string	571	=item on_osc_seq $term, $op, $args, $resp
		572
		573	Called on every OSC sequence and can be used to suppress it or modify its
		574	behaviour. The default should be to return an empty list. A true value
		575	suppresses execution of the request completely. Make sure you don't get
		576	confused by recursive invocations when you output an OSC sequence within
		577	this callback.
		578
		579	C<on_osc_seq_perl> should be used for new behaviour.
		580
		581	=item on_osc_seq_perl $term, $args, $resp
208		582
209	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =	583	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
210	operating system command) is processed. Cursor position and other state	584	operating system command) is processed. Cursor position and other state
211	information is up-to-date when this happens. For interoperability, the	585	information is up-to-date when this happens. For interoperability, the
212	string should start with the extension name and a colon, to distinguish	586	string should start with the extension name (sans -osc) and a semicolon,
213	it from commands for other extensions, and this might be enforced in the	587	to distinguish it from commands for other extensions, and this might be
214	future.	588	enforced in the future.
		589
		590	For example, C<overlay-osc> uses this:
		591
		592	sub on_osc_seq_perl {
		593	my ($self, $osc, $resp) = @_;
		594
		595	return unless $osc =~ s/^overlay;//;
		596
		597	... process remaining $osc string
		598	}
215		599
216	Be careful not ever to trust (in a security sense) the data you receive,	600	Be careful not ever to trust (in a security sense) the data you receive,
217	as its source can not easily be controleld (e-mail content, messages from	601	as its source can not easily be controlled (e-mail content, messages from
218	other users on the same system etc.).	602	other users on the same system etc.).
		603
		604	For responses, C<$resp> contains the end-of-args separator used by the
		605	sender.
219		606
220	=item on_add_lines $term, $string	607	=item on_add_lines $term, $string
221		608
222	Called whenever text is about to be output, with the text as argument. You	609	Called whenever text is about to be output, with the text as argument. You
223	can filter/change and output the text yourself by returning a true value	610	can filter/change and output the text yourself by returning a true value
224	and calling C<< $term->scr_add_lines >> yourself. Please note that this	611	and calling C<< $term->scr_add_lines >> yourself. Please note that this
225	might be very slow, however, as your hook is called for B<all> text being	612	might be very slow, however, as your hook is called for B<all> text being
226	output.	613	output.
227		614
		615	=item on_tt_write $term, $octets
		616
		617	Called whenever some data is written to the tty/pty and can be used to
		618	suppress or filter tty input.
		619
		620	=item on_tt_paste $term, $octets
		621
		622	Called whenever text is about to be pasted, with the text as argument. You
		623	can filter/change and paste the text yourself by returning a true value
		624	and calling C<< $term->tt_paste >> yourself. C<$octets> is
		625	locale-encoded.
		626
		627	=item on_line_update $term, $row
		628
		629	Called whenever a line was updated or changed. Can be used to filter
		630	screen output (e.g. underline urls or other useless stuff). Only lines
		631	that are being shown will be filtered, and, due to performance reasons,
		632	not always immediately.
		633
		634	The row number is always the topmost row of the line if the line spans
		635	multiple rows.
		636
		637	Please note that, if you change the line, then the hook might get called
		638	later with the already-modified line (e.g. if unrelated parts change), so
		639	you cannot just toggle rendition bits, but only set them.
		640
228	=item on_refresh_begin $term	641	=item on_refresh_begin $term
229		642
230	Called just before the screen gets redrawn. Can be used for overlay	643	Called just before the screen gets redrawn. Can be used for overlay or
231	or similar effects by modify terminal contents in refresh_begin, and	644	similar effects by modifying the terminal contents in refresh_begin, and
232	restoring them in refresh_end. The built-in overlay and selection display	645	restoring them in refresh_end. The built-in overlay and selection display
233	code is run after this hook, and takes precedence.	646	code is run after this hook, and takes precedence.
234		647
235	=item on_refresh_end $term	648	=item on_refresh_end $term
236		649
237	Called just after the screen gets redrawn. See C<on_refresh_begin>.	650	Called just after the screen gets redrawn. See C<on_refresh_begin>.
238		651
239	=item on_keyboard_command $term, $string	652	=item on_user_command $term, $string
240		653
241	Called whenever the user presses a key combination that has a	654	Called whenever a user-configured event is being activated (e.g. via
242	C<perl:string> action bound to it (see description of the B<keysym>	655	a C<perl:string> action bound to a key, see description of the B<keysym>
243	resource in the @@RXVT_NAME@@(1) manpage).	656	resource in the @@RXVT_NAME@@(1) manpage).
244		657
		658	The event is simply the action string. This interface is assumed to change
		659	slightly in the future.
		660
		661	=item on_resize_all_windows $term, $new_width, $new_height
		662
		663	Called just after the new window size has been calculated, but before
		664	windows are actually being resized or hints are being set. If this hook
		665	returns TRUE, setting of the window hints is being skipped.
		666
		667	=item on_x_event $term, $event
		668
		669	Called on every X event received on the vt window (and possibly other
		670	windows). Should only be used as a last resort. Most event structure
		671	members are not passed.
		672
		673	=item on_root_event $term, $event
		674
		675	Like C<on_x_event>, but is called for events on the root window.
		676
		677	=item on_focus_in $term
		678
		679	Called whenever the window gets the keyboard focus, before rxvt-unicode
		680	does focus in processing.
		681
		682	=item on_focus_out $term
		683
		684	Called whenever the window loses keyboard focus, before rxvt-unicode does
		685	focus out processing.
		686
		687	=item on_configure_notify $term, $event
		688
		689	=item on_property_notify $term, $event
		690
		691	=item on_key_press $term, $event, $keysym, $octets
		692
		693	=item on_key_release $term, $event, $keysym
		694
		695	=item on_button_press $term, $event
		696
		697	=item on_button_release $term, $event
		698
		699	=item on_motion_notify $term, $event
		700
		701	=item on_map_notify $term, $event
		702
		703	=item on_unmap_notify $term, $event
		704
		705	Called whenever the corresponding X event is received for the terminal. If
		706	the hook returns true, then the event will be ignored by rxvt-unicode.
		707
		708	The event is a hash with most values as named by Xlib (see the XEvent
		709	manpage), with the additional members C<row> and C<col>, which are the
		710	(real, not screen-based) row and column under the mouse cursor.
		711
		712	C<on_key_press> additionally receives the string rxvt-unicode would
		713	output, if any, in locale-specific encoding.
		714
		715	subwindow.
		716
		717	=item on_client_message $term, $event
		718
		719	=item on_wm_protocols $term, $event
		720
		721	=item on_wm_delete_window $term, $event
		722
		723	Called when various types of ClientMessage events are received (all with
		724	format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
		725
		726	=item on_bell $term
		727
		728	Called on receipt of a bell character.
		729
245	=back	730	=back
246		731
		732	=cut
		733
		734	package urxvt;
		735
		736	use utf8;
		737	use strict;
		738	use Carp ();
		739	use Scalar::Util ();
		740	use List::Util ();
		741
		742	our $VERSION = 1;
		743	our $TERM;
		744	our @TERM_INIT;
		745	our @TERM_EXT;
		746	our @HOOKNAME;
		747	our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
		748	our %OPTION;
		749
		750	our $LIBDIR;
		751	our $RESNAME;
		752	our $RESCLASS;
		753	our $RXVTNAME;
		754
		755	our $NOCHAR = chr 0xffff;
		756
247	=head2 Variables in the C<urxvt> Package	757	=head2 Variables in the C<urxvt> Package
248		758
249	=over 4	759	=over 4
250		760
		761	=item $urxvt::LIBDIR
		762
		763	The rxvt-unicode library directory, where, among other things, the perl
		764	modules and scripts are stored.
		765
		766	=item $urxvt::RESCLASS, $urxvt::RESCLASS
		767
		768	The resource class and name rxvt-unicode uses to look up X resources.
		769
		770	=item $urxvt::RXVTNAME
		771
		772	The basename of the installed binaries, usually C<urxvt>.
		773
251	=item $urxvt::TERM	774	=item $urxvt::TERM
252		775
253	The current terminal. Whenever a callback/Hook is bein executed, this	776	The current terminal. This variable stores the current C<urxvt::term>
254	variable stores the current C<urxvt::term> object.	777	object, whenever a callback/hook is executing.
		778
		779	=item @urxvt::TERM_INIT
		780
		781	All code references in this array will be called as methods of the next newly
		782	created C<urxvt::term> object (during the C<on_init> phase). The array
		783	gets cleared before the code references that were in it are being executed,
		784	so references can push themselves onto it again if they so desire.
		785
		786	This complements to the perl-eval command line option, but gets executed
		787	first.
		788
		789	=item @urxvt::TERM_EXT
		790
		791	Works similar to C<@TERM_INIT>, but contains perl package/class names, which
		792	get registered as normal extensions after calling the hooks in C<@TERM_INIT>
		793	but before other extensions. Gets cleared just like C<@TERM_INIT>.
255		794
256	=back	795	=back
257		796
258	=head2 Functions in the C<urxvt> Package	797	=head2 Functions in the C<urxvt> Package
259		798
260	=over 4	799	=over 4
261		800
262	=item urxvt::fatal $errormessage	801	=item urxvt::fatal $errormessage
263		802
264	Fatally aborts execution with the given error message. Avoid at all	803	Fatally aborts execution with the given error message (which should
265	costs! The only time this is acceptable is when the terminal process	804	include a trailing newline). Avoid at all costs! The only time this
266	starts up.	805	is acceptable (and useful) is in the init hook, where it prevents the
		806	terminal from starting up.
267		807
268	=item urxvt::warn $string	808	=item urxvt::warn $string
269		809
270	Calls C<rxvt_warn> with the given string which should not include a	810	Calls C<rxvt_warn> with the given string which should include a trailing
271	newline. The module also overwrites the C<warn> builtin with a function	811	newline. The module also overwrites the C<warn> builtin with a function
272	that calls this function.	812	that calls this function.
273		813
274	Using this function has the advantage that its output ends up in the	814	Using this function has the advantage that its output ends up in the
275	correct place, e.g. on stderr of the connecting urxvtc client.	815	correct place, e.g. on stderr of the connecting urxvtc client.
276		816
		817	Messages have a size limit of 1023 bytes currently.
		818
		819	=item @terms = urxvt::termlist
		820
		821	Returns all urxvt::term objects that exist in this process, regardless of
		822	whether they are started, being destroyed etc., so be careful. Only term
		823	objects that have perl extensions attached will be returned (because there
		824	is no urxvt::term object associated with others).
		825
277	=item $time = urxvt::NOW	826	=item $time = urxvt::NOW
278		827
279	Returns the "current time" (as per the event loop).	828	Returns the "current time" (as per the event loop).
		829
		830	=item urxvt::CurrentTime
		831
		832	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
		833	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
		834	Button4Mask, Button5Mask, AnyModifier
		835
		836	=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
		837	ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
		838	PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
		839	Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
		840	KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
		841	ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
		842	FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
		843
		844	=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
		845	EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
		846	GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
		847	UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
		848	ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
		849	CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
		850	SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
		851
		852	Various constants for use in X calls and event processing.
280		853
281	=back	854	=back
282		855
283	=head2 RENDITION	856	=head2 RENDITION
284		857
…		…
299		872
300	=item $rend = urxvt::OVERLAY_RSTYLE	873	=item $rend = urxvt::OVERLAY_RSTYLE
301		874
302	Return the rendition mask used for overlays by default.	875	Return the rendition mask used for overlays by default.
303		876
304	=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline	877	=item $rendbit = urxvt::RS_Bold, urxvt::RS_Italic, urxvt::RS_Blink,
		878	urxvt::RS_RVid, urxvt::RS_Uline
305		879
306	Return the bit that enabled bold, italic, blink, reverse-video and	880	Return the bit that enabled bold, italic, blink, reverse-video and
307	underline, respectively. To enable such a style, just logically OR it into	881	underline, respectively. To enable such a style, just logically OR it into
308	the bitset.	882	the bitset.
309		883
…		…
311		885
312	=item $background = urxvt::GET_BASEBG $rend	886	=item $background = urxvt::GET_BASEBG $rend
313		887
314	Return the foreground/background colour index, respectively.	888	Return the foreground/background colour index, respectively.
315		889
316	=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)	890	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
317		891
318	=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)	892	=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
		893
		894	=item $rend = urxvt::SET_COLOR $rend, $new_fg, $new_bg
319		895
320	Replace the foreground/background colour in the rendition mask with the	896	Replace the foreground/background colour in the rendition mask with the
321	specified one.	897	specified one.
322		898
323	=item $value = urxvt::GET_CUSTOM ($rend)	899	=item $value = urxvt::GET_CUSTOM $rend
324		900
325	Return the "custom" value: Every rendition has 5 bits for use by	901	Return the "custom" value: Every rendition has 5 bits for use by
326	extensions. They can be set and changed as you like and are initially	902	extensions. They can be set and changed as you like and are initially
327	zero.	903	zero.
328		904
329	=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)	905	=item $rend = urxvt::SET_CUSTOM $rend, $new_value
330		906
331	Change the custom value.	907	Change the custom value.
332		908
333	=back	909	=back
334		910
335	=cut	911	=cut
336		912
337	package urxvt;
338
339	use strict;
340	use Scalar::Util ();
341
342	our $TERM;
343	our @HOOKNAME;
344	our $LIBDIR;
345
346	BEGIN {	913	BEGIN {
347	urxvt->bootstrap;
348
349	# overwrite perl's warn	914	# overwrite perl's warn
350	*CORE::GLOBAL::warn = sub {	915	*CORE::GLOBAL::warn = sub {
351	my $msg = join "", @_;	916	my $msg = join "", @_;
352	$msg .= "\n"	917	$msg .= "\n"
353	unless $msg =~ /\n$/;	918	unless $msg =~ /\n$/;
354	urxvt::warn ($msg);	919	urxvt::warn ($msg);
355	};	920	};
356	}	921	}
357		922
358	my @hook_count;	923	no warnings 'utf8';
		924
359	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};	925	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
360		926
361	sub verbose {	927	sub verbose {
362	my ($level, $msg) = @_;	928	my ($level, $msg) = @_;
363	warn "$msg\n" if $level <= $verbosity;	929	warn "$msg\n" if $level <= $verbosity;
364	}	930	}
365		931
366	# find on_xxx subs in the package and register them	932	my %extension_pkg;
367	# as hooks
368	sub register_package($) {
369	my ($pkg) = @_;
370
371	for my $htype (0.. $#HOOKNAME) {
372	my $name = $HOOKNAME[$htype];
373
374	my $ref = $pkg->can ("on_" . lc $name)
375	or next;
376
377	$TERM->{_hook}[$htype]{$pkg} = $ref;
378	$hook_count[$htype]++
379	or set_should_invoke $htype, 1;
380	}
381	}
382
383	my $script_pkg = "script0000";
384	my %script_pkg;
385		933
386	# load a single script into its own package, once only	934	# load a single script into its own package, once only
387	sub script_package($) {	935	sub extension_package($) {
388	my ($path) = @_;	936	my ($path) = @_;
389		937
390	$script_pkg{$path} ||= do {	938	$extension_pkg{$path} ||= do {
391	my $pkg = "urxvt::" . ($script_pkg++);	939	$path =~ /([^\/\\]+)$/;
		940	my $pkg = $1;
		941	$pkg =~ s/[^[:word:]]/_/g;
		942	$pkg = "urxvt::ext::$pkg";
392		943
393	verbose 3, "loading script '$path' into package '$pkg'";	944	verbose 3, "loading extension '$path' into package '$pkg'";
394		945
395	open my $fh, "<:raw", $path	946	open my $fh, "<:raw", $path
396	or die "$path: $!";	947	or die "$path: $!";
397		948
398	my $source = "package $pkg; use strict; use utf8;\n"	949	my $source =
		950	"package $pkg; use strict; use utf8; no warnings 'utf8';\n"
399	. "#line 1 \"$path\"\n{\n"	951	. "#line 1 \"$path\"\n{\n"
400	. (do { local $/; <$fh> })	952	. (do { local $/; <$fh> })
401	. "\n};\n1";	953	. "\n};\n1";
402		954
		955	eval $source
403	eval $source or die "$path: $@";	956	or die "$path: $@";
404		957
405	$pkg	958	$pkg
406	}	959	}
407	}	960	}
408		961
…		…
414	my $htype = shift;	967	my $htype = shift;
415		968
416	if ($htype == 0) { # INIT	969	if ($htype == 0) { # INIT
417	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");	970	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
418		971
		972	my %ext_arg;
		973
		974	{
		975	my @init = @TERM_INIT;
		976	@TERM_INIT = ();
		977	$_->($TERM) for @init;
		978	my @pkg = @TERM_EXT;
		979	@TERM_EXT = ();
		980	$TERM->register_package ($_) for @pkg;
		981	}
		982
419	for my $ext (map { split /:/, $TERM->resource ("perl_ext_$_") } 1, 2) {	983	for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
		984	if ($_ eq "default") {
		985	$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
		986	} elsif (/^-(.*)$/) {
		987	delete $ext_arg{$1};
		988	} elsif (/^([^<]+)<(.*)>$/) {
		989	push @{ $ext_arg{$1} }, $2;
		990	} else {
		991	$ext_arg{$_} ||= [];
		992	}
		993	}
		994
		995	for my $ext (sort keys %ext_arg) {
420	my @files = grep -f $_, map "$_/$ext", @dirs;	996	my @files = grep -f $_, map "$_/$ext", @dirs;
421		997
422	if (@files) {	998	if (@files) {
423	register_package script_package $files[0];	999	$TERM->register_package (extension_package $files[0], $ext_arg{$ext});
424	} else {	1000	} else {
425	warn "perl extension '$ext' not found in perl library search path\n";	1001	warn "perl extension '$ext' not found in perl library search path\n";
426	}	1002	}
427	}	1003	}
		1004
		1005	eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval");
		1006	warn $@ if $@;
428	}	1007	}
429		1008
430	$retval = undef;	1009	$retval = undef;
431		1010
432	if (my $cb = $TERM->{_hook}[$htype]) {	1011	if (my $cb = $TERM->{_hook}[$htype]) {
433	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"	1012	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
434	if $verbosity >= 10;	1013	if $verbosity >= 10;
435		1014
436	keys %$cb;	1015	for my $pkg (keys %$cb) {
		1016	my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg}, @_) };
		1017	$retval ||= $retval_;
437		1018
438	while (my ($pkg, $cb) = each %$cb) {	1019	if ($@) {
439	$retval = $cb->(	1020	$TERM->ungrab; # better to lose the grab than the session
440	$TERM->{_pkg}{$pkg} ||= do {	1021	warn $@;
441	my $proxy = bless { }, urxvt::term::proxy::;
442	Scalar::Util::weaken ($proxy->{term} = $TERM);
443	$proxy
444	},
445	@_,
446	) and last;
447	}
448	}
449
450	if ($htype == 1) { # DESTROY
451	# remove hooks if unused
452	if (my $hook = $TERM->{_hook}) {
453	for my $htype (0..$#$hook) {
454	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
455	or set_should_invoke $htype, 0;
456	}	1022	}
457	}	1023	}
458		1024
		1025	verbose 11, "$HOOKNAME[$htype] returning <$retval>"
		1026	if $verbosity >= 11;
		1027	}
		1028
		1029	if ($htype == 1) { # DESTROY
459	# clear package objects	1030	# clear package objects
460	%$_ = () for values %{ $TERM->{_pkg} };	1031	%$_ = () for values %{ $TERM->{_pkg} };
461		1032
462	# clear package	1033	# clear package
463	%$TERM = ();	1034	%$TERM = ();
464	}	1035	}
465		1036
466	$retval	1037	$retval
467	}	1038	}
468		1039
469	sub urxvt::term::proxy::AUTOLOAD {	1040	sub SET_COLOR($$$) {
470	$urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/	1041	SET_BGCOLOR (SET_FGCOLOR ($_[0], $_[1]), $_[2])
		1042	}
		1043
		1044	sub rend2mask {
		1045	no strict 'refs';
		1046	my ($str, $mask) = (@_, 0);
		1047	my %color = ( fg => undef, bg => undef );
		1048	my @failed;
		1049	for my $spec ( split /\s+/, $str ) {
		1050	if ( $spec =~ /^([fb]g)[_:-]?(\d+)/i ) {
		1051	$color{lc($1)} = $2;
		1052	} else {
		1053	my $neg = $spec =~ s/^[-^]//;
		1054	unless ( exists &{"RS_$spec"} ) {
		1055	push @failed, $spec;
		1056	next;
		1057	}
		1058	my $cur = &{"RS_$spec"};
		1059	if ( $neg ) {
		1060	$mask &= ~$cur;
		1061	} else {
		1062	$mask |= $cur;
		1063	}
		1064	}
		1065	}
		1066	($mask, @color{qw(fg bg)}, \@failed)
		1067	}
		1068
		1069	# urxvt::term::extension
		1070
		1071	package urxvt::term::extension;
		1072
		1073	sub enable {
		1074	my ($self, %hook) = @_;
		1075	my $pkg = $self->{_pkg};
		1076
		1077	while (my ($name, $cb) = each %hook) {
		1078	my $htype = $HOOKTYPE{uc $name};
		1079	defined $htype
		1080	or Carp::croak "unsupported hook type '$name'";
		1081
		1082	$self->set_should_invoke ($htype, +1)
		1083	unless exists $self->{term}{_hook}[$htype]{$pkg};
		1084
		1085	$self->{term}{_hook}[$htype]{$pkg} = $cb;
		1086	}
		1087	}
		1088
		1089	sub disable {
		1090	my ($self, @hook) = @_;
		1091	my $pkg = $self->{_pkg};
		1092
		1093	for my $name (@hook) {
		1094	my $htype = $HOOKTYPE{uc $name};
		1095	defined $htype
		1096	or Carp::croak "unsupported hook type '$name'";
		1097
		1098	$self->set_should_invoke ($htype, -1)
		1099	if delete $self->{term}{_hook}[$htype]{$pkg};
		1100	}
		1101	}
		1102
		1103	our $AUTOLOAD;
		1104
		1105	sub AUTOLOAD {
		1106	$AUTOLOAD =~ /:([^:]+)$/
471	or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";	1107	or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
472		1108
473	eval qq{	1109	eval qq{
474	sub $urxvt::term::proxy::AUTOLOAD {	1110	sub $AUTOLOAD {
475	my \$proxy = shift;	1111	my \$proxy = shift;
476	\$proxy->{term}->$1 (\@_)	1112	\$proxy->{term}->$1 (\@_)
477	}	1113	}
478	1	1114	1
479	} or die "FATAL: unable to compile method forwarder: $@";	1115	} or die "FATAL: unable to compile method forwarder: $@";
480		1116
481	goto &$urxvt::term::proxy::AUTOLOAD;	1117	goto &$AUTOLOAD;
482	}	1118	}
		1119
		1120	sub DESTROY {
		1121	# nop
		1122	}
		1123
		1124	# urxvt::destroy_hook
		1125
		1126	sub urxvt::destroy_hook::DESTROY {
		1127	${$_[0]}->();
		1128	}
		1129
		1130	sub urxvt::destroy_hook(&) {
		1131	bless \shift, urxvt::destroy_hook::
		1132	}
		1133
		1134	package urxvt::anyevent;
		1135
		1136	=head2 The C<urxvt::anyevent> Class
		1137
		1138	The sole purpose of this class is to deliver an interface to the
		1139	C<AnyEvent> module - any module using it will work inside urxvt without
		1140	further programming. The only exception is that you cannot wait on
		1141	condition variables, but non-blocking condvar use is ok. What this means
		1142	is that you cannot use blocking APIs, but the non-blocking variant should
		1143	work.
		1144
		1145	=cut
		1146
		1147	our $VERSION = '5.23';
		1148
		1149	$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
		1150	push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
		1151
		1152	sub timer {
		1153	my ($class, %arg) = @_;
		1154
		1155	my $cb = $arg{cb};
		1156
		1157	urxvt::timer
		1158	->new
		1159	->after ($arg{after}, $arg{interval})
		1160	->cb ($arg{interval} ? $cb : sub {
		1161	$_[0]->stop; # need to cancel manually
		1162	$cb->();
		1163	})
		1164	}
		1165
		1166	sub io {
		1167	my ($class, %arg) = @_;
		1168
		1169	my $cb = $arg{cb};
		1170	my $fd = fileno $arg{fh};
		1171	defined $fd or $fd = $arg{fh};
		1172
		1173	bless [$arg{fh}, urxvt::iow
		1174	->new
		1175	->fd ($fd)
		1176	->events (($arg{poll} =~ /r/ ? 1 : 0)
		1177	| ($arg{poll} =~ /w/ ? 2 : 0))
		1178	->start
		1179	->cb ($cb)
		1180	], urxvt::anyevent::
		1181	}
		1182
		1183	sub idle {
		1184	my ($class, %arg) = @_;
		1185
		1186	my $cb = $arg{cb};
		1187
		1188	urxvt::iw
		1189	->new
		1190	->start
		1191	->cb ($cb)
		1192	}
		1193
		1194	sub child {
		1195	my ($class, %arg) = @_;
		1196
		1197	my $cb = $arg{cb};
		1198
		1199	urxvt::pw
		1200	->new
		1201	->start ($arg{pid})
		1202	->cb (sub {
		1203	$_[0]->stop; # need to cancel manually
		1204	$cb->($_[0]->rpid, $_[0]->rstatus);
		1205	})
		1206	}
		1207
		1208	sub DESTROY {
		1209	$_[0][1]->stop;
		1210	}
		1211
		1212	sub one_event {
		1213	Carp::croak "AnyEvent->one_event blocking wait unsupported in urxvt, use a non-blocking API";
		1214	}
		1215
		1216	package urxvt::term;
483		1217
484	=head2 The C<urxvt::term> Class	1218	=head2 The C<urxvt::term> Class
485		1219
486	=over 4	1220	=over 4
		1221
		1222	=cut
		1223
		1224	# find on_xxx subs in the package and register them
		1225	# as hooks
		1226	sub register_package {
		1227	my ($self, $pkg, $argv) = @_;
		1228
		1229	no strict 'refs';
		1230
		1231	urxvt::verbose 6, "register package $pkg to $self";
		1232
		1233	@{"$pkg\::ISA"} = urxvt::term::extension::;
		1234
		1235	my $proxy = bless {
		1236	_pkg => $pkg,
		1237	argv => $argv,
		1238	}, $pkg;
		1239	Scalar::Util::weaken ($proxy->{term} = $self);
		1240
		1241	$self->{_pkg}{$pkg} = $proxy;
		1242
		1243	for my $name (@HOOKNAME) {
		1244	if (my $ref = $pkg->can ("on_" . lc $name)) {
		1245	$proxy->enable ($name => $ref);
		1246	}
		1247	}
		1248	}
		1249
		1250	=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
		1251
		1252	Creates a new terminal, very similar as if you had started it with system
		1253	C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
		1254	hash which defines the environment of the new terminal.
		1255
		1256	Croaks (and probably outputs an error message) if the new instance
		1257	couldn't be created. Returns C<undef> if the new instance didn't
		1258	initialise perl, and the terminal object otherwise. The C<init> and
		1259	C<start> hooks will be called before this call returns, and are free to
		1260	refer to global data (which is race free).
		1261
		1262	=cut
		1263
		1264	sub new {
		1265	my ($class, $env, @args) = @_;
		1266
		1267	$env or Carp::croak "environment hash missing in call to urxvt::term->new";
		1268	@args or Carp::croak "name argument missing in call to urxvt::term->new";
		1269
		1270	_new ([ map "$_=$env->{$_}", keys %$env ], \@args);
		1271	}
		1272
		1273	=item $term->destroy
		1274
		1275	Destroy the terminal object (close the window, free resources
		1276	etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
		1277	watchers (timers, io watchers) are still active.
		1278
		1279	=item $term->exec_async ($cmd[, @args])
		1280
		1281	Works like the combination of the C<fork>/C<exec> builtins, which executes
		1282	("starts") programs in the background. This function takes care of setting
		1283	the user environment before exec'ing the command (e.g. C<PATH>) and should
		1284	be preferred over explicit calls to C<exec> or C<system>.
		1285
		1286	Returns the pid of the subprocess or C<undef> on error.
		1287
		1288	=cut
		1289
		1290	sub exec_async {
		1291	my $self = shift;
		1292
		1293	my $pid = fork;
		1294
		1295	return $pid
		1296	if !defined $pid or $pid;
		1297
		1298	%ENV = %{ $self->env };
		1299
		1300	exec @_;
		1301	urxvt::_exit 255;
		1302	}
		1303
		1304	=item $isset = $term->option ($optval[, $set])
		1305
		1306	Returns true if the option specified by C<$optval> is enabled, and
		1307	optionally change it. All option values are stored by name in the hash
		1308	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
		1309
		1310	Here is a likely non-exhaustive list of option names, please see the
		1311	source file F</src/optinc.h> to see the actual list:
		1312
		1313	borderLess buffered console cursorBlink cursorUnderline hold iconic
		1314	insecure intensityStyles iso14755 iso14755_52 jumpScroll loginShell
		1315	mapAlert meta8 mouseWheelScrollPage override-redirect pastableTabs
		1316	pointerBlank reverseVideo scrollBar scrollBar_floating scrollBar_right
		1317	scrollTtyKeypress scrollTtyOutput scrollWithBuffer secondaryScreen
		1318	secondaryScroll skipBuiltinGlyphs skipScroll transparent tripleclickwords
		1319	urgentOnBell utmpInhibit visualBell
487		1320
488	=item $value = $term->resource ($name[, $newval])	1321	=item $value = $term->resource ($name[, $newval])
489		1322
490	Returns the current resource value associated with a given name and	1323	Returns the current resource value associated with a given name and
491	optionally sets a new value. Setting values is most useful in the C<init>	1324	optionally sets a new value. Setting values is most useful in the C<init>
…		…
500	likely change).	1333	likely change).
501		1334
502	Please note that resource strings will currently only be freed when the	1335	Please note that resource strings will currently only be freed when the
503	terminal is destroyed, so changing options frequently will eat memory.	1336	terminal is destroyed, so changing options frequently will eat memory.
504		1337
505	Here is a a likely non-exhaustive list of resource names, not all of which	1338	Here is a likely non-exhaustive list of resource names, not all of which
506	are supported in every build, please see the source to see the actual	1339	are supported in every build, please see the source file F</src/rsinc.h>
507	list:	1340	to see the actual list:
508		1341
509	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont	1342	answerbackstring backgroundPixmap backspace_key blendtype blurradius
510	borderLess color cursorBlink cursorUnderline cutchars delete_key	1343	boldFont boldItalicFont borderLess buffered chdir color cursorBlink
511	display_name embed ext_bwidth fade font geometry hold iconName	1344	cursorUnderline cutchars delete_key depth display_name embed ext_bwidth
512	imFont imLocale inputMethod insecure int_bwidth intensityStyles	1345	fade font geometry hold iconName iconfile imFont imLocale inputMethod
		1346	insecure int_bwidth intensityStyles iso14755 iso14755_52 italicFont
513	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier	1347	jumpScroll letterSpace lineSpace loginShell mapAlert meta8 modifier
514	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2	1348	mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
515	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd	1349	perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
516	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating	1350	preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
517	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput	1351	scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
518	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle	1352	scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
519	shade term_name title transparent transparent_all tripleclickwords	1353	secondaryScreen secondaryScroll shade skipBuiltinGlyphs skipScroll
		1354	term_name title transient_for transparent tripleclickwords urgentOnBell
520	utmpInhibit visualBell	1355	utmpInhibit visualBell
521		1356
522	=cut	1357	=cut
523		1358
524	sub urxvt::term::resource($$;$) {	1359	sub resource($$;$) {
525	my ($self, $name) = (shift, shift);	1360	my ($self, $name) = (shift, shift);
526	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);	1361	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
527	goto &urxvt::term::_resource;	1362	goto &urxvt::term::_resource
528	}	1363	}
		1364
		1365	=item $value = $term->x_resource ($pattern)
		1366
		1367	Returns the X-Resource for the given pattern, excluding the program or
		1368	class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
		1369	same value as used by this instance of rxvt-unicode. Returns C<undef> if no
		1370	resource with that pattern exists.
		1371
		1372	This method should only be called during the C<on_start> hook, as there is
		1373	only one resource database per display, and later invocations might return
		1374	the wrong resources.
		1375
		1376	=item $success = $term->parse_keysym ($keysym_spec, $command_string)
		1377
		1378	Adds a keymap translation exactly as specified via a resource. See the
		1379	C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
529		1380
530	=item $rend = $term->rstyle ([$new_rstyle])	1381	=item $rend = $term->rstyle ([$new_rstyle])
531		1382
532	Return and optionally change the current rendition. Text that is output by	1383	Return and optionally change the current rendition. Text that is output by
533	the terminal application will use this style.	1384	the terminal application will use this style.
…		…
541		1392
542	=item ($row, $col) = $term->selection_beg ([$row, $col])	1393	=item ($row, $col) = $term->selection_beg ([$row, $col])
543		1394
544	=item ($row, $col) = $term->selection_end ([$row, $col])	1395	=item ($row, $col) = $term->selection_end ([$row, $col])
545		1396
546	Return the current values of the selection mark, begin or end positions,	1397	Return the current values of the selection mark, begin or end positions.
547	and optionally set them to new values.
548		1398
		1399	When arguments are given, then the selection coordinates are set to
		1400	C<$row> and C<$col>, and the selection screen is set to the current
		1401	screen.
		1402
		1403	=item $screen = $term->selection_screen ([$screen])
		1404
		1405	Returns the current selection screen, and then optionally sets it.
		1406
		1407	=item $term->selection_make ($eventtime[, $rectangular])
		1408
		1409	Tries to make a selection as set by C<selection_beg> and
		1410	C<selection_end>. If C<$rectangular> is true (default: false), a
		1411	rectangular selection will be made. This is the preferred function to make
		1412	a selection.
		1413
549	=item $success = $term->selection_grab ($eventtime)	1414	=item $success = $term->selection_grab ($eventtime[, $clipboard])
550		1415
551	Try to request the primary selection from the server (for example, as set	1416	Try to acquire ownership of the primary (clipboard if C<$clipboard> is
552	by the next method).	1417	true) selection from the server. The corresponding text can be set
		1418	with the next method. No visual feedback will be given. This function
		1419	is mostly useful from within C<on_sel_grab> hooks.
553		1420
554	=item $oldtext = $term->selection ([$newtext])	1421	=item $oldtext = $term->selection ([$newtext, $clipboard])
555		1422
556	Return the current selection text and optionally replace it by C<$newtext>.	1423	Return the current selection (clipboard if C<$clipboard> is true) text
		1424	and optionally replace it by C<$newtext>.
557		1425
		1426	=item $term->selection_clear ([$clipboard])
		1427
		1428	Revoke ownership of the primary (clipboard if C<$clipboard> is true) selection.
		1429
558	#=item $term->overlay ($x, $y, $text)	1430	=item $term->overlay_simple ($x, $y, $text)
559	#	1431
560	#Create a simple multi-line overlay box. See the next method for details.	1432	Create a simple multi-line overlay box. See the next method for details.
561	#	1433
562	#=cut	1434	=cut
563	#	1435
564	#sub urxvt::term::scr_overlay {	1436	sub overlay_simple {
565	# my ($self, $x, $y, $text) = @_;	1437	my ($self, $x, $y, $text) = @_;
566	#	1438
567	# my @lines = split /\n/, $text;	1439	my @lines = split /\n/, $text;
568	#	1440
569	# my $w = 0;	1441	my $w = List::Util::max map $self->strwidth ($_), @lines;
570	# for (map $self->strwidth ($_), @lines) {	1442
571	# $w = $_ if $w < $_;
572	# }
573	#
574	# $self->scr_overlay_new ($x, $y, $w, scalar @lines);	1443	my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
575	# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;	1444	$overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
576	#}	1445
		1446	$overlay
		1447	}
577		1448
578	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])	1449	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
579		1450
580	Create a new (empty) overlay at the given position with the given	1451	Create a new (empty) overlay at the given position with the given
581	width/height. C<$rstyle> defines the initial rendition style	1452	width/height. C<$rstyle> defines the initial rendition style
…		…
592		1463
593	The methods currently supported on C<urxvt::overlay> objects are:	1464	The methods currently supported on C<urxvt::overlay> objects are:
594		1465
595	=over 4	1466	=over 4
596		1467
597	=item $overlay->set ($x, $y, $text, $rend)	1468	=item $overlay->set ($x, $y, $text[, $rend])
598		1469
599	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts	1470	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts
600	text in rxvt-unicode's special encoding and an array of rendition values	1471	text in rxvt-unicode's special encoding and an array of rendition values
601	at a specific position inside the overlay.	1472	at a specific position inside the overlay.
602		1473
		1474	If C<$rend> is missing, then the rendition will not be changed.
		1475
603	=item $overlay->hide	1476	=item $overlay->hide
604		1477
605	If visible, hide the overlay, but do not destroy it.	1478	If visible, hide the overlay, but do not destroy it.
606		1479
607	=item $overlay->show	1480	=item $overlay->show
608		1481
609	If hidden, display the overlay again.	1482	If hidden, display the overlay again.
610		1483
611	=back	1484	=back
612		1485
		1486	=item $popup = $term->popup ($event)
		1487
		1488	Creates a new C<urxvt::popup> object that implements a popup menu. The
		1489	C<$event> I<must> be the event causing the menu to pop up (a button event,
		1490	currently).
		1491
		1492	=cut
		1493
		1494	sub popup {
		1495	my ($self, $event) = @_;
		1496
		1497	$self->grab ($event->{time}, 1)
		1498	or return;
		1499
		1500	my $popup = bless {
		1501	term => $self,
		1502	event => $event,
		1503	}, urxvt::popup::;
		1504
		1505	Scalar::Util::weaken $popup->{term};
		1506
		1507	$self->{_destroy}{$popup} = urxvt::destroy_hook { $popup->{popup}->destroy };
		1508	Scalar::Util::weaken $self->{_destroy}{$popup};
		1509
		1510	$popup
		1511	}
		1512
613	=item $cellwidth = $term->strwidth $string	1513	=item $cellwidth = $term->strwidth ($string)
614		1514
615	Returns the number of screen-cells this string would need. Correctly	1515	Returns the number of screen-cells this string would need. Correctly
616	accounts for wide and combining characters.	1516	accounts for wide and combining characters.
617		1517
618	=item $octets = $term->locale_encode $string	1518	=item $octets = $term->locale_encode ($string)
619		1519
620	Convert the given text string into the corresponding locale encoding.	1520	Convert the given text string into the corresponding locale encoding.
621		1521
622	=item $string = $term->locale_decode $octets	1522	=item $string = $term->locale_decode ($octets)
623		1523
624	Convert the given locale-encoded octets into a perl string.	1524	Convert the given locale-encoded octets into a perl string.
		1525
		1526	=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
		1527
		1528	XORs the rendition values in the given span with the provided value
		1529	(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
		1530	refresh hooks to provide effects similar to the selection.
		1531
		1532	=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
		1533
		1534	Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
		1535	whitespace will additionally be xored with the C<$rstyle2>, which defaults
		1536	to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
		1537	it instead. Both styles I<MUST NOT> contain font styles.
		1538
		1539	=item $term->scr_bell
		1540
		1541	Ring the bell!
625		1542
626	=item $term->scr_add_lines ($string)	1543	=item $term->scr_add_lines ($string)
627		1544
628	Write the given text string to the screen, as if output by the application	1545	Write the given text string to the screen, as if output by the application
629	running inside the terminal. It may not contain command sequences (escape	1546	running inside the terminal. It may not contain command sequences (escape
…		…
632		1549
633	Normally its not a good idea to use this function, as programs might be	1550	Normally its not a good idea to use this function, as programs might be
634	confused by changes in cursor position or scrolling. Its useful inside a	1551	confused by changes in cursor position or scrolling. Its useful inside a
635	C<on_add_lines> hook, though.	1552	C<on_add_lines> hook, though.
636		1553
		1554	=item $term->scr_change_screen ($screen)
		1555
		1556	Switch to given screen - 0 primary, 1 secondary.
		1557
		1558	=item $term->cmd_parse ($octets)
		1559
		1560	Similar to C<scr_add_lines>, but the argument must be in the
		1561	locale-specific encoding of the terminal and can contain command sequences
		1562	(escape codes) that will be interpreted.
		1563
637	=item $term->tt_write ($octets)	1564	=item $term->tt_write ($octets)
638		1565
639	Write the octets given in C<$data> to the tty (i.e. as program input). To	1566	Write the octets given in C<$octets> to the tty (i.e. as program input). To
640	pass characters instead of octets, you should convert your strings first	1567	pass characters instead of octets, you should convert your strings first
641	to the locale-specific encoding using C<< $term->locale_encode >>.	1568	to the locale-specific encoding using C<< $term->locale_encode >>.
642		1569
		1570	=item $term->tt_paste ($octets)
		1571
		1572	Write the octets given in C<$octets> to the tty as a paste, converting NL to
		1573	CR and bracketing the data with control sequences if bracketed paste mode
		1574	is set.
		1575
		1576	=item $old_events = $term->pty_ev_events ([$new_events])
		1577
		1578	Replaces the event mask of the pty watcher by the given event mask. Can
		1579	be used to suppress input and output handling to the pty/tty. See the
		1580	description of C<< urxvt::timer->events >>. Make sure to always restore
		1581	the previous value.
		1582
		1583	=item $fd = $term->pty_fd
		1584
		1585	Returns the master file descriptor for the pty in use, or C<-1> if no pty
		1586	is used.
		1587
		1588	=item $windowid = $term->parent
		1589
		1590	Return the window id of the toplevel window.
		1591
		1592	=item $windowid = $term->vt
		1593
		1594	Return the window id of the terminal window.
		1595
		1596	=item $term->vt_emask_add ($x_event_mask)
		1597
		1598	Adds the specified events to the vt event mask. Useful e.g. when you want
		1599	to receive pointer events all the times:
		1600
		1601	$term->vt_emask_add (urxvt::PointerMotionMask);
		1602
		1603	=item $term->focus_in
		1604
		1605	=item $term->focus_out
		1606
		1607	=item $term->key_press ($state, $keycode[, $time])
		1608
		1609	=item $term->key_release ($state, $keycode[, $time])
		1610
		1611	Deliver various fake events to to terminal.
		1612
643	=item $window_width = $term->width	1613	=item $window_width = $term->width
644		1614
645	=item $window_height = $term->height	1615	=item $window_height = $term->height
646		1616
647	=item $font_width = $term->fwidth	1617	=item $font_width = $term->fwidth
…		…
660		1630
661	=item $max_scrollback = $term->saveLines	1631	=item $max_scrollback = $term->saveLines
662		1632
663	=item $nrow_plus_saveLines = $term->total_rows	1633	=item $nrow_plus_saveLines = $term->total_rows
664		1634
665	=item $lines_in_scrollback = $term->nsaved	1635	=item $topmost_scrollback_row = $term->top_row
666		1636
667	Return various integers describing terminal characteristics.	1637	Return various integers describing terminal characteristics.
668		1638
		1639	=item $x_display = $term->display_id
		1640
		1641	Return the DISPLAY used by rxvt-unicode.
		1642
		1643	=item $lc_ctype = $term->locale
		1644
		1645	Returns the LC_CTYPE category string used by this rxvt-unicode.
		1646
		1647	=item $env = $term->env
		1648
		1649	Returns a copy of the environment in effect for the terminal as a hashref
		1650	similar to C<\%ENV>.
		1651
		1652	=item @envv = $term->envv
		1653
		1654	Returns the environment as array of strings of the form C<VAR=VALUE>.
		1655
		1656	=item @argv = $term->argv
		1657
		1658	Return the argument vector as this terminal, similar to @ARGV, but
		1659	includes the program name as first element.
		1660
		1661	=cut
		1662
		1663	sub env {
		1664	+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), $_[0]->envv }
		1665	}
		1666
		1667	=item $modifiermask = $term->ModLevel3Mask
		1668
		1669	=item $modifiermask = $term->ModMetaMask
		1670
		1671	=item $modifiermask = $term->ModNumLockMask
		1672
		1673	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
		1674	AltGr), the meta key (often Alt) and the num lock key, if applicable.
		1675
		1676	=item $screen = $term->current_screen
		1677
		1678	Returns the currently displayed screen (0 primary, 1 secondary).
		1679
		1680	=item $cursor_is_hidden = $term->hidden_cursor
		1681
		1682	Returns whether the cursor is currently hidden or not.
		1683
669	=item $view_start = $term->view_start ([$newvalue])	1684	=item $view_start = $term->view_start ([$newvalue])
670		1685
671	Returns the negative row number of the topmost line. Minimum value is	1686	Returns the row number of the topmost displayed line. Maximum value is
672	C<0>, which displays the normal terminal contents. Larger values scroll	1687	C<0>, which displays the normal terminal contents. Lower values scroll
673	this many lines into the scrollback buffer.	1688	this many lines into the scrollback buffer.
674		1689
675	=item $term->want_refresh	1690	=item $term->want_refresh
676		1691
677	Requests a screen refresh. At the next opportunity, rxvt-unicode will	1692	Requests a screen refresh. At the next opportunity, rxvt-unicode will
…		…
680		1695
681	Used after changing terminal contents to display them.	1696	Used after changing terminal contents to display them.
682		1697
683	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])	1698	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
684		1699
685	Returns the text of the entire row with number C<$row_number>. Row C<0>	1700	Returns the text of the entire row with number C<$row_number>. Row C<< $term->top_row >>
686	is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost	1701	is the topmost terminal line, row C<< $term->nrow-1 >> is the bottommost
687	terminal line. The scrollback buffer starts at line C<-1> and extends to
688	line C<< -$term->nsaved >>. Nothing will be returned if a nonexistent line	1702	terminal line. Nothing will be returned if a nonexistent line
689	is requested.	1703	is requested.
690		1704
691	If C<$new_text> is specified, it will replace characters in the current	1705	If C<$new_text> is specified, it will replace characters in the current
692	line, starting at column C<$start_col> (default C<0>), which is useful	1706	line, starting at column C<$start_col> (default C<0>), which is useful
693	to replace only parts of a line. The font index in the rendition will	1707	to replace only parts of a line. The font index in the rendition will
694	automatically be updated.	1708	automatically be updated.
695		1709
696	C<$text> is in a special encoding: tabs and wide characters that use more	1710	C<$text> is in a special encoding: tabs and wide characters that use more
697	than one cell when displayed are padded with urxvt::NOCHAR characters	1711	than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
698	(C<chr 65535>). Characters with combining characters and other characters	1712	characters. Characters with combining characters and other characters that
699	that do not fit into the normal tetx encoding will be replaced with	1713	do not fit into the normal text encoding will be replaced with characters
700	characters in the private use area.	1714	in the private use area.
701		1715
702	You have to obey this encoding when changing text. The advantage is	1716	You have to obey this encoding when changing text. The advantage is
703	that C<substr> and similar functions work on screen cells and not on	1717	that C<substr> and similar functions work on screen cells and not on
704	characters.	1718	characters.
705		1719
…		…
735	about the logical line that row C<$row_number> is part of. It supports the	1749	about the logical line that row C<$row_number> is part of. It supports the
736	following methods:	1750	following methods:
737		1751
738	=over 4	1752	=over 4
739		1753
740	=item $text = $line->t	1754	=item $text = $line->t ([$new_text])
741		1755
742	Returns the full text of the line, similar to C<ROW_t>	1756	Returns or replaces the full text of the line, similar to C<ROW_t>
743		1757
744	=item $rend = $line->r	1758	=item $rend = $line->r ([$new_rend])
745		1759
746	Returns the full rendition array of the line, similar to C<ROW_r>	1760	Returns or replaces the full rendition array of the line, similar to C<ROW_r>
747		1761
748	=item $length = $line->l	1762	=item $length = $line->l
749		1763
750	Returns the length of the line in cells, similar to C<ROW_l>.	1764	Returns the length of the line in cells, similar to C<ROW_l>.
751		1765
…		…
756	Return the row number of the first/last row of the line, respectively.	1770	Return the row number of the first/last row of the line, respectively.
757		1771
758	=item $offset = $line->offset_of ($row, $col)	1772	=item $offset = $line->offset_of ($row, $col)
759		1773
760	Returns the character offset of the given row|col pair within the logical	1774	Returns the character offset of the given row|col pair within the logical
761	line.	1775	line. Works for rows outside the line, too, and returns corresponding
		1776	offsets outside the string.
762		1777
763	=item ($row, $col) = $line->coord_of ($offset)	1778	=item ($row, $col) = $line->coord_of ($offset)
764		1779
765	Translates a string offset into terminal coordinates again.	1780	Translates a string offset into terminal coordinates again.
766		1781
767	=back	1782	=back
768		1783
769	=cut	1784	=cut
770		1785
771	sub urxvt::term::line {	1786	sub line {
772	my ($self, $row) = @_;	1787	my ($self, $row) = @_;
773		1788
774	my $maxrow = $self->nrow - 1;	1789	my $maxrow = $self->nrow - 1;
775		1790
776	my ($beg, $end) = ($row, $row);	1791	my ($beg, $end) = ($row, $row);
…		…
840	$offset / $self->{ncol} + $self->{beg},	1855	$offset / $self->{ncol} + $self->{beg},
841	$offset % $self->{ncol}	1856	$offset % $self->{ncol}
842	)	1857	)
843	}	1858	}
844		1859
845	=item ($row, $col) = $line->coord_of ($offset)
846	=item $text = $term->special_encode $string	1860	=item $text = $term->special_encode $string
847		1861
848	Converts a perl string into the special encoding used by rxvt-unicode,	1862	Converts a perl string into the special encoding used by rxvt-unicode,
849	where one character corresponds to one screen cell. See	1863	where one character corresponds to one screen cell. See
850	C<< $term->ROW_t >> for details.	1864	C<< $term->ROW_t >> for details.
851		1865
852	=item $string = $term->special_decode $text	1866	=item $string = $term->special_decode $text
853		1867
854	Converts rxvt-unicodes text reprsentation into a perl string. See	1868	Converts rxvt-unicodes text representation into a perl string. See
855	C<< $term->ROW_t >> for details.	1869	C<< $term->ROW_t >> for details.
856		1870
		1871	=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
		1872
		1873	=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
		1874
		1875	Register/unregister a synchronous button grab. See the XGrabButton
		1876	manpage.
		1877
		1878	=item $success = $term->grab ($eventtime[, $sync])
		1879
		1880	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
		1881	synchronous (C<$sync> is true). Also remembers the grab timestamp.
		1882
		1883	=item $term->allow_events_async
		1884
		1885	Calls XAllowEvents with AsyncBoth for the most recent grab.
		1886
		1887	=item $term->allow_events_sync
		1888
		1889	Calls XAllowEvents with SyncBoth for the most recent grab.
		1890
		1891	=item $term->allow_events_replay
		1892
		1893	Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
		1894	recent grab.
		1895
		1896	=item $term->ungrab
		1897
		1898	Calls XUngrabPointer and XUngrabKeyboard for the most recent grab. Is called automatically on
		1899	evaluation errors, as it is better to lose the grab in the error case as
		1900	the session.
		1901
		1902	=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
		1903
		1904	=item $atom_name = $term->XGetAtomName ($atom)
		1905
		1906	=item @atoms = $term->XListProperties ($window)
		1907
		1908	=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
		1909
		1910	=item $term->XChangeProperty ($window, $property, $type, $format, $octets)
		1911
		1912	=item $term->XDeleteProperty ($window, $property)
		1913
		1914	=item $window = $term->DefaultRootWindow
		1915
		1916	=item $term->XReparentWindow ($window, $parent, [$x, $y])
		1917
		1918	=item $term->XMapWindow ($window)
		1919
		1920	=item $term->XUnmapWindow ($window)
		1921
		1922	=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
		1923
		1924	=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
		1925
		1926	=item $term->XChangeInput ($window, $add_events[, $del_events])
		1927
		1928	Various X or X-related functions. The C<$term> object only serves as
		1929	the source of the display, otherwise those functions map more-or-less
		1930	directly onto the X functions of the same name.
		1931
857	=back	1932	=back
		1933
		1934	=cut
		1935
		1936	package urxvt::popup;
		1937
		1938	=head2 The C<urxvt::popup> Class
		1939
		1940	=over 4
		1941
		1942	=cut
		1943
		1944	sub add_item {
		1945	my ($self, $item) = @_;
		1946
		1947	$item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal};
		1948	$item->{rend}{hover} = "\x1b[0;30;46m" unless exists $item->{rend}{hover};
		1949	$item->{rend}{active} = "\x1b[m" unless exists $item->{rend}{active};
		1950
		1951	$item->{render} ||= sub { $_[0]{text} };
		1952
		1953	push @{ $self->{item} }, $item;
		1954	}
		1955
		1956	=item $popup->add_title ($title)
		1957
		1958	Adds a non-clickable title to the popup.
		1959
		1960	=cut
		1961
		1962	sub add_title {
		1963	my ($self, $title) = @_;
		1964
		1965	$self->add_item ({
		1966	rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
		1967	text => $title,
		1968	activate => sub { },
		1969	});
		1970	}
		1971
		1972	=item $popup->add_separator ([$sepchr])
		1973
		1974	Creates a separator, optionally using the character given as C<$sepchr>.
		1975
		1976	=cut
		1977
		1978	sub add_separator {
		1979	my ($self, $sep) = @_;
		1980
		1981	$sep ||= "=";
		1982
		1983	$self->add_item ({
		1984	rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
		1985	text => "",
		1986	render => sub { $sep x $self->{term}->ncol },
		1987	activate => sub { },
		1988	});
		1989	}
		1990
		1991	=item $popup->add_button ($text, $cb)
		1992
		1993	Adds a clickable button to the popup. C<$cb> is called whenever it is
		1994	selected.
		1995
		1996	=cut
		1997
		1998	sub add_button {
		1999	my ($self, $text, $cb) = @_;
		2000
		2001	$self->add_item ({ type => "button", text => $text, activate => $cb});
		2002	}
		2003
		2004	=item $popup->add_toggle ($text, $initial_value, $cb)
		2005
		2006	Adds a toggle/checkbox item to the popup. The callback gets called
		2007	whenever it gets toggled, with a boolean indicating its new value as its
		2008	first argument.
		2009
		2010	=cut
		2011
		2012	sub add_toggle {
		2013	my ($self, $text, $value, $cb) = @_;
		2014
		2015	my $item; $item = {
		2016	type => "button",
		2017	text => " $text",
		2018	value => $value,
		2019	render => sub { ($_[0]{value} ? "* " : " ") . $text },
		2020	activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
		2021	};
		2022
		2023	$self->add_item ($item);
		2024	}
		2025
		2026	=item $popup->show
		2027
		2028	Displays the popup (which is initially hidden).
		2029
		2030	=cut
		2031
		2032	sub show {
		2033	my ($self) = @_;
		2034
		2035	local $urxvt::popup::self = $self;
		2036
		2037	my $env = $self->{term}->env;
		2038	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
		2039	delete $env->{LC_ALL};
		2040	$env->{LC_CTYPE} = $self->{term}->locale;
		2041
		2042	my $term = urxvt::term->new (
		2043	$env, "popup",
		2044	"--perl-lib" => "", "--perl-ext-common" => "",
		2045	"-pty-fd" => -1, "-sl" => 0,
		2046	"-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
		2047	"--transient-for" => $self->{term}->parent,
		2048	"-display" => $self->{term}->display_id,
		2049	"-pe" => "urxvt-popup",
		2050	) or die "unable to create popup window\n";
		2051
		2052	unless (delete $term->{urxvt_popup_init_done}) {
		2053	$term->ungrab;
		2054	$term->destroy;
		2055	die "unable to initialise popup window\n";
		2056	}
		2057	}
		2058
		2059	sub DESTROY {
		2060	my ($self) = @_;
		2061
		2062	delete $self->{term}{_destroy}{$self};
		2063	$self->{term}->ungrab;
		2064	}
		2065
		2066	=back
		2067
		2068	=cut
		2069
		2070	package urxvt::watcher;
858		2071
859	=head2 The C<urxvt::timer> Class	2072	=head2 The C<urxvt::timer> Class
860		2073
861	This class implements timer watchers/events. Time is represented as a	2074	This class implements timer watchers/events. Time is represented as a
862	fractional number of seconds since the epoch. Example:	2075	fractional number of seconds since the epoch. Example:
…		…
866	->new	2079	->new
867	->interval (1)	2080	->interval (1)
868	->cb (sub {	2081	->cb (sub {
869	$term->{overlay}->set (0, 0,	2082	$term->{overlay}->set (0, 0,
870	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);	2083	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
871	});	2084	});
872		2085
873	=over 4	2086	=over 4
874		2087
875	=item $timer = new urxvt::timer	2088	=item $timer = new urxvt::timer
876		2089
…		…
879		2092
880	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })	2093	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })
881		2094
882	Set the callback to be called when the timer triggers.	2095	Set the callback to be called when the timer triggers.
883		2096
884	=item $tstamp = $timer->at
885
886	Return the time this watcher will fire next.
887
888	=item $timer = $timer->set ($tstamp)	2097	=item $timer = $timer->set ($tstamp[, $interval])
889		2098
890	Set the time the event is generated to $tstamp.	2099	Set the time the event is generated to $tstamp (and optionally specifies a
		2100	new $interval).
891		2101
892	=item $timer = $timer->interval ($interval)	2102	=item $timer = $timer->interval ($interval)
893		2103
894	Normally (and when C<$interval> is C<0>), the timer will automatically	2104	By default (and when C<$interval> is C<0>), the timer will automatically
895	stop after it has fired once. If C<$interval> is non-zero, then the timer	2105	stop after it has fired once. If C<$interval> is non-zero, then the timer
896	is automatically rescheduled at the given intervals.	2106	is automatically rescheduled at the given intervals.
897		2107
898	=item $timer = $timer->start	2108	=item $timer = $timer->start
899		2109
900	Start the timer.	2110	Start the timer.
901		2111
902	=item $timer = $timer->start ($tstamp)	2112	=item $timer = $timer->start ($tstamp[, $interval])
903		2113
904	Set the event trigger time to C<$tstamp> and start the timer.	2114	Set the event trigger time to C<$tstamp> and start the timer. Optionally
		2115	also replaces the interval.
		2116
		2117	=item $timer = $timer->after ($delay[, $interval])
		2118
		2119	Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
905		2120
906	=item $timer = $timer->stop	2121	=item $timer = $timer->stop
907		2122
908	Stop the timer.	2123	Stop the timer.
909		2124
…		…
915		2130
916	$term->{socket} = ...	2131	$term->{socket} = ...
917	$term->{iow} = urxvt::iow	2132	$term->{iow} = urxvt::iow
918	->new	2133	->new
919	->fd (fileno $term->{socket})	2134	->fd (fileno $term->{socket})
920	->events (1) # wait for read data	2135	->events (urxvt::EV_READ)
921	->start	2136	->start
922	->cb (sub {	2137	->cb (sub {
923	my ($iow, $revents) = @_;	2138	my ($iow, $revents) = @_;
924	# $revents must be 1 here, no need to check	2139	# $revents must be 1 here, no need to check
925	sysread $term->{socket}, my $buf, 8192	2140	sysread $term->{socket}, my $buf, 8192
…		…
938	Set the callback to be called when io events are triggered. C<$reventmask>	2153	Set the callback to be called when io events are triggered. C<$reventmask>
939	is a bitset as described in the C<events> method.	2154	is a bitset as described in the C<events> method.
940		2155
941	=item $iow = $iow->fd ($fd)	2156	=item $iow = $iow->fd ($fd)
942		2157
943	Set the filedescriptor (not handle) to watch.	2158	Set the file descriptor (not handle) to watch.
944		2159
945	=item $iow = $iow->events ($eventmask)	2160	=item $iow = $iow->events ($eventmask)
946		2161
947	Set the event mask to watch. Bit #0 (value C<1>) enables watching for read	2162	Set the event mask to watch. The only allowed values are
948	data, Bit #1 (value C<2>) enables watching for write data.	2163	C<urxvt::EV_READ> and C<urxvt::EV_WRITE>, which might be ORed
		2164	together, or C<urxvt::EV_NONE>.
949		2165
950	=item $iow = $iow->start	2166	=item $iow = $iow->start
951		2167
952	Start watching for requested events on the given handle.	2168	Start watching for requested events on the given handle.
953		2169
954	=item $iow = $iow->stop	2170	=item $iow = $iow->stop
955		2171
956	Stop watching for events on the given filehandle.	2172	Stop watching for events on the given file handle.
		2173
		2174	=back
		2175
		2176	=head2 The C<urxvt::iw> Class
		2177
		2178	This class implements idle watchers, that get called automatically when
		2179	the process is idle. They should return as fast as possible, after doing
		2180	some useful work.
		2181
		2182	=over 4
		2183
		2184	=item $iw = new urxvt::iw
		2185
		2186	Create a new idle watcher object in stopped state.
		2187
		2188	=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
		2189
		2190	Set the callback to be called when the watcher triggers.
		2191
		2192	=item $timer = $timer->start
		2193
		2194	Start the watcher.
		2195
		2196	=item $timer = $timer->stop
		2197
		2198	Stop the watcher.
		2199
		2200	=back
		2201
		2202	=head2 The C<urxvt::pw> Class
		2203
		2204	This class implements process watchers. They create an event whenever a
		2205	process exits, after which they stop automatically.
		2206
		2207	my $pid = fork;
		2208	...
		2209	$term->{pw} = urxvt::pw
		2210	->new
		2211	->start ($pid)
		2212	->cb (sub {
		2213	my ($pw, $exit_status) = @_;
		2214	...
		2215	});
		2216
		2217	=over 4
		2218
		2219	=item $pw = new urxvt::pw
		2220
		2221	Create a new process watcher in stopped state.
		2222
		2223	=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
		2224
		2225	Set the callback to be called when the timer triggers.
		2226
		2227	=item $pw = $timer->start ($pid)
		2228
		2229	Tells the watcher to start watching for process C<$pid>.
		2230
		2231	=item $pw = $pw->stop
		2232
		2233	Stop the watcher.
957		2234
958	=back	2235	=back
959		2236
960	=head1 ENVIRONMENT	2237	=head1 ENVIRONMENT
961		2238
…		…
964	This variable controls the verbosity level of the perl extension. Higher	2241	This variable controls the verbosity level of the perl extension. Higher
965	numbers indicate more verbose output.	2242	numbers indicate more verbose output.
966		2243
967	=over 4	2244	=over 4
968		2245
969	=item =0 - only fatal messages	2246	=item == 0 - fatal messages
970		2247
971	=item =3 - script loading and management	2248	=item >= 3 - script loading and management
972		2249
973	=item =10 - all events received	2250	=item >=10 - all called hooks
		2251
		2252	=item >=11 - hook return values
974		2253
975	=back	2254	=back
976		2255
977	=head1 AUTHOR	2256	=head1 AUTHOR
978		2257
979	Marc Lehmann <pcg@goof.com>	2258	Marc Lehmann <schmorp@schmorp.de>
980	http://software.schmorp.de/pkg/rxvt-unicode	2259	http://software.schmorp.de/pkg/rxvt-unicode
981		2260
982	=cut	2261	=cut
983		2262
984	1	2263	1
		2264
		2265	# vim: sw=3:

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