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Revision 1.68 by root, Mon Jan 9 20:00:31 2006 UTC vs.
Revision 1.130 by root, Wed Jan 25 15:32:48 2006 UTC

…		…
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	=head1 PREPACKAGED EXTENSIONS
32		32
33	This section describes the extensiosn delivered with this version. You can	33	This section describes the extensions delivered with this release. You can
34	find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.	34	find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.
35		35
36	You can activate them like this:	36	You can activate them like this:
37		37
38	@@RXVT_NAME@@ -pe <extensionname>	38	@@RXVT_NAME@@ -pe <extensionname>
39		39
		40	Or by adding them to the resource for extensions loaded by default:
		41
		42	URxvt.perl-ext-common: default,automove-background,selection-autotransform
		43
40	=over 4	44	=over 4
41		45
42	=item selection (enabled by default)	46	=item selection (enabled by default)
43		47
44	Intelligent selection. This extension tries to be more intelligent when	48	(More) intelligent selection. This extension tries to be more intelligent
45	the user extends selections (double-click). Right now, it tries to select	49	when the user extends selections (double-click and further clicks). Right
46	urls and complete shell-quoted arguments, which is very convenient, too,	50	now, it tries to select words, urls and complete shell-quoted
47	if your F<ls> supports C<--quoting-style=shell>.	51	arguments, which is very convenient, too, if your F<ls> supports
		52	C<--quoting-style=shell>.
48		53
49	It also offers the following bindable event:	54	A double-click usually selects the word under the cursor, further clicks
		55	will enlarge the selection.
		56
		57	The selection works by trying to match a number of regexes and displaying
		58	them in increasing order of length. You can add your own regexes by
		59	specifying resources of the form:
		60
		61	URxvt.selection.pattern-0: perl-regex
		62	URxvt.selection.pattern-1: perl-regex
		63	...
		64
		65	The index number (0, 1...) must not have any holes, and each regex must
		66	contain at least one pair of capturing parentheses, which will be used for
		67	the match. For example, the followign adds a regex that matches everything
		68	between two vertical bars:
		69
		70	URxvt.selection.pattern-0: \\|([^|]+)\\|
		71
		72	Another example: Programs I use often output "absolute path: " at the
		73	beginning of a line when they process multiple files. The following
		74	pattern matches the filename (note, there is a single space at the very
		75	end):
		76
		77	URxvt.selection.pattern-0: ^(/[^:]+):\
		78
		79	You can look at the source of the selection extension to see more
		80	interesting uses, such as parsing a line from beginning to end.
		81
		82	This extension also offers following bindable keyboard commands:
50		83
51	=over 4	84	=over 4
52		85
53	=item rot13	86	=item rot13
54		87
…		…
64	runtime.	97	runtime.
65		98
66	=item selection-popup (enabled by default)	99	=item selection-popup (enabled by default)
67		100
68	Binds a popup menu to Ctrl-Button3 that lets you convert the selection	101	Binds a popup menu to Ctrl-Button3 that lets you convert the selection
69	text into various other formats/action.	102	text into various other formats/action (such as uri unescaping, perl
		103	evaluation, web-browser starting etc.), depending on content.
70		104
71	=item digital-clock	105	Other extensions can extend this popup menu by pushing a code reference
		106	onto C<@{ $term->{selection_popup_hook} }>, that is called whenever the
		107	popup is displayed.
72		108
73	Displays a digital clock using the built-in overlay.	109	It's sole argument is the popup menu, which can be modified. The selection
		110	is in C<$_>, which can be used to decide wether to add something or not.
		111	It should either return nothing or a string and a code reference. The
		112	string will be used as button text and the code reference will be called
		113	when the button gets activated and should transform C<$_>.
		114
		115	The following will add an entry C<a to b> that transforms all C<a>s in
		116	the selection to C<b>s, but only if the selection currently contains any
		117	C<a>s:
		118
		119	push @{ $self->{term}{selection_popup_hook} }, sub {
		120	/a/ ? ("a to be" => sub { s/a/b/g }
		121	: ()
		122	};
		123
		124	=item searchable-scrollback<hotkey> (enabled by default)
		125
		126	Adds regex search functionality to the scrollback buffer, triggered
		127	by a hotkey (default: C<M-s>). While in search mode, normal terminal
		128	input/output is suspended and a regex is displayed at the bottom of the
		129	screen.
		130
		131	Inputting characters appends them to the regex and continues incremental
		132	search. C<BackSpace> removes a character from the regex, C<Up> and C<Down>
		133	search upwards/downwards in the scrollback buffer, C<End> jumps to the
		134	bottom. C<Escape> leaves search mode and returns to the point where search
		135	was started, while C<Enter> or C<Return> stay at the current position and
		136	additionally stores the first match in the current line into the primary
		137	selection.
		138
		139	=item readline (enabled by default)
		140
		141	A support package that tries to make editing with readline easier. At the
		142	moment, it reacts to clicking with the left mouse button by trying to
		143	move the text cursor to this position. It does so by generating as many
		144	cursor-left or cursor-right keypresses as required (the this only works
		145	for programs that correctly support wide characters).
		146
		147	To avoid too many false positives, this is only done when:
		148
		149	=over 4
		150
		151	=item - the tty is in ICANON state.
		152
		153	=item - the text cursor is visible.
		154
		155	=item - the primary screen is currently being displayed.
		156
		157	=item - the mouse is on the same (multi-row-) line as the text cursor.
		158
		159	=back
		160
		161	The normal selection mechanism isn't disabled, so quick successive clicks
		162	might interfere with selection creation in harmless ways.
		163
		164	=item selection-autotransform
		165
		166	This selection allows you to do automatic transforms on a selection
		167	whenever a selection is made.
		168
		169	It works by specifying perl snippets (most useful is a single C<s///>
		170	operator) that modify C<$_> as resources:
		171
		172	URxvt.selection-autotransform.0: transform
		173	URxvt.selection-autotransform.1: transform
		174	...
		175
		176	For example, the following will transform selections of the form
		177	C<filename:number>, often seen in compiler messages, into C<vi +$filename
		178	$word>:
		179
		180	URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
		181
		182	And this example matches the same,but replaces it with vi-commands you can
		183	paste directly into your (vi :) editor:
		184
		185	URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
		186
		187	Of course, this can be modified to suit your needs and your editor :)
		188
		189	To expand the example above to typical perl error messages ("XXX at
		190	FILENAME line YYY."), you need a slightly more elaborate solution:
		191
		192	URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
		193	URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
		194
		195	The first line tells the selection code to treat the unchanging part of
		196	every error message as a selection pattern, and the second line transforms
		197	the message into vi commands to load the file.
		198
		199	=item tabbed
		200
		201	This transforms the terminal into a tabbar with additional terminals, that
		202	is, it implements what is commonly refered to as "tabbed terminal". The topmost line
		203	displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
		204	button per tab.
		205
		206	Clicking a button will activate that tab. Pressing B<Shift-Left> and
		207	B<Shift-Right> will switch to the tab left or right of the current one,
		208	while B<Shift-Down> creates a new tab.
74		209
75	=item mark-urls	210	=item mark-urls
76		211
77	Uses per-line display filtering (C<on_line_update>) to underline urls.	212	Uses per-line display filtering (C<on_line_update>) to underline urls and
		213	make them clickable. When middle-clicked, the program specified in the
		214	resource C<urlLauncher> (default C<x-www-browser>) will be started with
		215	the URL as first argument.
		216
		217	=item xim-onthespot
		218
		219	This (experimental) perl extension implements OnTheSpot editing. It does
		220	not work perfectly, and some input methods don't seem to work well with
		221	OnTheSpot editing in general, but it seems to work at leats for SCIM and
		222	kinput2.
		223
		224	You enable it by specifying this extension and a preedit style of
		225	C<OnTheSpot>, i.e.:
		226
		227	@@RXVT_NAME@@ -pt OnTheSpot -pe xim-onthespot
		228
		229	=item automove-background
		230
		231	This is basically a one-line extension that dynamically changes the background pixmap offset
		232	to the window position, in effect creating the same effect as pseudo transparency with
		233	a custom pixmap. No scaling is supported in this mode. Exmaple:
		234
		235	@@RXVT_NAME@@ -pixmap background.xpm -pe automove-background
78		236
79	=item block-graphics-to-ascii	237	=item block-graphics-to-ascii
80		238
81	A not very useful example of filtering all text output to the terminal,	239	A not very useful example of filtering all text output to the terminal,
82	by replacing all line-drawing characters (U+2500 .. U+259F) by a	240	by replacing all line-drawing characters (U+2500 .. U+259F) by a
83	similar-looking ascii character.	241	similar-looking ascii character.
84		242
		243	=item digital-clock
		244
		245	Displays a digital clock using the built-in overlay.
		246
		247	=item remote-clipboard
		248
		249	Somewhat of a misnomer, this extension adds two menu entries to the
		250	selection popup that allows one ti run external commands to store the
		251	selection somewhere and fetch it again.
		252
		253	We use it to implement a "distributed selection mechanism", which just
		254	means that one command uploads the file to a remote server, and another
		255	reads it.
		256
		257	The commands can be set using the C<URxvt.remote-selection.store> and
		258	C<URxvt.remote-selection.fetch> resources. The first should read the
		259	selection to store from STDIN (always in UTF-8), the second should provide
		260	the selection data on STDOUT (also in UTF-8).
		261
		262	The defaults (which are likely useless to you) use rsh and cat:
		263
		264	URxvt.remote-selection.store: rsh ruth 'cat >/tmp/distributed-selection'
		265	URxvt.remote-selection.fetch: rsh ruth 'cat /tmp/distributed-selection'
		266
		267	=item selection-pastebin
		268
		269	This is a little rarely useful extension that Uploads the selection as
		270	textfile to a remote site (or does other things). (The implementation is
		271	not currently secure for use in a multiuser environment as it writes to
		272	F</tmp> directly.).
		273
		274	It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
		275	i.e.
		276
		277	URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
		278
		279	Pressing this combination runs a command with C<%> replaced by the name of
		280	the textfile. This command can be set via a resource:
		281
		282	URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
		283
		284	And the default is likely not useful to anybody but the few people around
		285	here :)
		286
		287	The name of the textfile is the hex encoded md5 sum of the selection, so
		288	the same content should lead to the same filename.
		289
		290	After a successful upload the selection will be replaced by the text given
		291	in the C<selection-pastebin-url> resource (again, the % is the placeholder
		292	for the filename):
		293
		294	URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
		295
85	=item example-refresh-hooks	296	=item example-refresh-hooks
86		297
87	Displays a very simple digital clock in the upper right corner of the	298	Displays a very simple digital clock in the upper right corner of the
88	window. Illustrates overwriting the refresh callbacks to create your own	299	window. Illustrates overwriting the refresh callbacks to create your own
89	overlays or changes.	300	overlays or changes.
90		301
91	=back	302	=back
		303
		304	=head1 API DOCUMENTATION
92		305
93	=head2 General API Considerations	306	=head2 General API Considerations
94		307
95	All objects (such as terminals, time watchers etc.) are typical	308	All objects (such as terminals, time watchers etc.) are typical
96	reference-to-hash objects. The hash can be used to store anything you	309	reference-to-hash objects. The hash can be used to store anything you
…		…
109	=over 4	322	=over 4
110		323
111	=item $text	324	=item $text
112		325
113	Rxvt-unicodes special way of encoding text, where one "unicode" character	326	Rxvt-unicodes special way of encoding text, where one "unicode" character
114	always represents one screen cell. See L<row_t> for a discussion of this format.	327	always represents one screen cell. See L<ROW_t> for a discussion of this format.
115		328
116	=item $string	329	=item $string
117		330
118	A perl text string, with an emphasis on I<text>. It can store all unicode	331	A perl text string, with an emphasis on I<text>. It can store all unicode
119	characters and is to be distinguished with text encoded in a specific	332	characters and is to be distinguished with text encoded in a specific
…		…
124	Either binary data or - more common - a text string encoded in a	337	Either binary data or - more common - a text string encoded in a
125	locale-specific way.	338	locale-specific way.
126		339
127	=back	340	=back
128		341
		342	=head2 Extension Objects
		343
		344	Very perl extension is a perl class. A separate perl object is created
		345	for each terminal and each extension and passed as the first parameter to
		346	hooks. So extensions can use their C<$self> object without having to think
		347	about other extensions, with the exception of methods and members that
		348	begin with an underscore character C<_>: these are reserved for internal
		349	use.
		350
		351	Although it isn't a C<urxvt::term> object, you can call all methods of the
		352	C<urxvt::term> class on this object.
		353
		354	It has the following methods and data members:
		355
		356	=over 4
		357
		358	=item $urxvt_term = $self->{term}
		359
		360	Returns the C<urxvt::term> object associated with this instance of the
		361	extension. This member I<must not> be changed in any way.
		362
		363	=item $self->enable ($hook_name => $cb, [$hook_name => $cb..])
		364
		365	Dynamically enable the given hooks (named without the C<on_> prefix) for
		366	this extension, replacing any previous hook. This is useful when you want
		367	to overwrite time-critical hooks only temporarily.
		368
		369	=item $self->disable ($hook_name[, $hook_name..])
		370
		371	Dynamically disable the given hooks.
		372
		373	=back
		374
129	=head2 Hooks	375	=head2 Hooks
130		376
131	The following subroutines can be declared in extension files, and will be	377	The following subroutines can be declared in extension files, and will be
132	called whenever the relevant event happens.	378	called whenever the relevant event happens.
133		379
134	The first argument passed to them is an object private to each terminal	380	The first argument passed to them is an extension oject as described in
135	and extension package. You can call all C<urxvt::term> methods on it, but	381	the in the C<Extension Objects> section.
136	its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
137	object that is shared between all packages is stored in the C<term>
138	member. It is, however, blessed intot he package of the extension script,
139	so for all practical purposes you can treat an extension script as a class.
140		382
141	All of them must return a boolean value. If it is true, then the event	383	B<All> of these hooks must return a boolean value. If any of the called
142	counts as being I<consumed>, and the invocation of other hooks is skipped,	384	hooks returns true, then the event counts as being I<consumed>, and the
143	and the relevant action might not be carried out by the C++ code.	385	relevant action might not be carried out by the C++ code.
144		386
145	When in doubt, return a false value (preferably C<()>).	387	I<< When in doubt, return a false value (preferably C<()>). >>
146		388
147	=over 4	389	=over 4
148		390
149	=item on_init $term	391	=item on_init $term
150		392
151	Called after a new terminal object has been initialized, but before	393	Called after a new terminal object has been initialized, but before
152	windows are created or the command gets run. Most methods are unsafe to	394	windows are created or the command gets run. Most methods are unsafe to
153	call or deliver senseless data, as terminal size and other characteristics	395	call or deliver senseless data, as terminal size and other characteristics
154	have not yet been determined. You can safely query and change resources,	396	have not yet been determined. You can safely query and change resources
155	though.	397	and options, though. For many purposes the C<on_start> hook is a better
		398	place.
		399
		400	=item on_start $term
		401
		402	Called at the very end of initialisation of a new terminal, just before
		403	trying to map (display) the toplevel and returning to the mainloop.
		404
		405	=item on_destroy $term
		406
		407	Called whenever something tries to destroy terminal, when the terminal is
		408	still fully functional (not for long, though).
156		409
157	=item on_reset $term	410	=item on_reset $term
158		411
159	Called after the screen is "reset" for any reason, such as resizing or	412	Called after the screen is "reset" for any reason, such as resizing or
160	control sequences. Here is where you can react on changes to size-related	413	control sequences. Here is where you can react on changes to size-related
161	variables.	414	variables.
162		415
163	=item on_start $term	416	=item on_child_start $term, $pid
164		417
165	Called at the very end of initialisation of a new terminal, just before	418	Called just after the child process has been C<fork>ed.
166	returning to the mainloop.	419
		420	=item on_child_exit $term, $status
		421
		422	Called just after the child process has exited. C<$status> is the status
		423	from C<waitpid>.
167		424
168	=item on_sel_make $term, $eventtime	425	=item on_sel_make $term, $eventtime
169		426
170	Called whenever a selection has been made by the user, but before the	427	Called whenever a selection has been made by the user, but before the
171	selection text is copied, so changes to the beginning, end or type of the	428	selection text is copied, so changes to the beginning, end or type of the
…		…
185	=item on_sel_extend $term	442	=item on_sel_extend $term
186		443
187	Called whenever the user tries to extend the selection (e.g. with a double	444	Called whenever the user tries to extend the selection (e.g. with a double
188	click) and is either supposed to return false (normal operation), or	445	click) and is either supposed to return false (normal operation), or
189	should extend the selection itelf and return true to suppress the built-in	446	should extend the selection itelf and return true to suppress the built-in
190	processing.	447	processing. This can happen multiple times, as long as the callback
		448	returns true, it will be called on every further click by the user and is
		449	supposed to enlarge the selection more and more, if possible.
191		450
192	See the F<selection> example extension.	451	See the F<selection> example extension.
193		452
194	=item on_view_change $term, $offset	453	=item on_view_change $term, $offset
195		454
…		…
226	can filter/change and output the text yourself by returning a true value	485	can filter/change and output the text yourself by returning a true value
227	and calling C<< $term->scr_add_lines >> yourself. Please note that this	486	and calling C<< $term->scr_add_lines >> yourself. Please note that this
228	might be very slow, however, as your hook is called for B<all> text being	487	might be very slow, however, as your hook is called for B<all> text being
229	output.	488	output.
230		489
		490	=item on_tt_write $term, $octets
		491
		492	Called whenever some data is written to the tty/pty and can be used to
		493	suppress or filter tty input.
		494
231	=item on_line_update $term, $row	495	=item on_line_update $term, $row
232		496
233	Called whenever a line was updated or changed. Can be used to filter	497	Called whenever a line was updated or changed. Can be used to filter
234	screen output (e.g. underline urls or other useless stuff). Only lines	498	screen output (e.g. underline urls or other useless stuff). Only lines
235	that are being shown will be filtered, and, due to performance reasons,	499	that are being shown will be filtered, and, due to performance reasons,
…		…
251		515
252	=item on_refresh_end $term	516	=item on_refresh_end $term
253		517
254	Called just after the screen gets redrawn. See C<on_refresh_begin>.	518	Called just after the screen gets redrawn. See C<on_refresh_begin>.
255		519
256	=item on_keyboard_command $term, $string	520	=item on_user_command $term, $string
257		521
258	Called whenever the user presses a key combination that has a	522	Called whenever the a user-configured event is being activated (e.g. via
259	C<perl:string> action bound to it (see description of the B<keysym>	523	a C<perl:string> action bound to a key, see description of the B<keysym>
260	resource in the @@RXVT_NAME@@(1) manpage).	524	resource in the @@RXVT_NAME@@(1) manpage).
		525
		526	The event is simply the action string. This interface is assumed to change
		527	slightly in the future.
		528
		529	=item on_x_event $term, $event
		530
		531	Called on every X event received on the vt window (and possibly other
		532	windows). Should only be used as a last resort. Most event structure
		533	members are not passed.
261		534
262	=item on_focus_in $term	535	=item on_focus_in $term
263		536
264	Called whenever the window gets the keyboard focus, before rxvt-unicode	537	Called whenever the window gets the keyboard focus, before rxvt-unicode
265	does focus in processing.	538	does focus in processing.
…		…
267	=item on_focus_out $term	540	=item on_focus_out $term
268		541
269	Called wheneever the window loses keyboard focus, before rxvt-unicode does	542	Called wheneever the window loses keyboard focus, before rxvt-unicode does
270	focus out processing.	543	focus out processing.
271		544
		545	=item on_configure_notify $term, $event
		546
		547	=item on_property_notify $term, $event
		548
272	=item on_key_press $term, $event, $octets	549	=item on_key_press $term, $event, $keysym, $octets
273		550
274	=item on_key_release $term, $event	551	=item on_key_release $term, $event, $keysym
275		552
276	=item on_button_press $term, $event	553	=item on_button_press $term, $event
277		554
278	=item on_button_release $term, $event	555	=item on_button_release $term, $event
279		556
…		…
285		562
286	Called whenever the corresponding X event is received for the terminal If	563	Called whenever the corresponding X event is received for the terminal If
287	the hook returns true, then the even will be ignored by rxvt-unicode.	564	the hook returns true, then the even will be ignored by rxvt-unicode.
288		565
289	The event is a hash with most values as named by Xlib (see the XEvent	566	The event is a hash with most values as named by Xlib (see the XEvent
290	manpage), with the additional members C<row> and C<col>, which are the row	567	manpage), with the additional members C<row> and C<col>, which are the
291	and column under the mouse cursor.	568	(real, not screen-based) row and column under the mouse cursor.
292		569
293	C<on_key_press> additionally receives the string rxvt-unicode would	570	C<on_key_press> additionally receives the string rxvt-unicode would
294	output, if any, in locale-specific encoding.	571	output, if any, in locale-specific encoding.
295		572
296	subwindow.	573	subwindow.
297		574
		575	=item on_client_message $term, $event
		576
		577	=item on_wm_protocols $term, $event
		578
		579	=item on_wm_delete_window $term, $event
		580
		581	Called when various types of ClientMessage events are received (all with
		582	format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
		583
298	=back	584	=back
299		585
		586	=cut
		587
		588	package urxvt;
		589
		590	use utf8;
		591	use strict;
		592	use Carp ();
		593	use Scalar::Util ();
		594	use List::Util ();
		595
		596	our $VERSION = 1;
		597	our $TERM;
		598	our @TERM_INIT;
		599	our @TERM_EXT;
		600	our @HOOKNAME;
		601	our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
		602	our %OPTION;
		603
		604	our $LIBDIR;
		605	our $RESNAME;
		606	our $RESCLASS;
		607	our $RXVTNAME;
		608
		609	our $NOCHAR = chr 0xffff;
		610
300	=head2 Variables in the C<urxvt> Package	611	=head2 Variables in the C<urxvt> Package
301		612
302	=over 4	613	=over 4
		614
		615	=item $urxvt::LIBDIR
		616
		617	The rxvt-unicode library directory, where, among other things, the perl
		618	modules and scripts are stored.
		619
		620	=item $urxvt::RESCLASS, $urxvt::RESCLASS
		621
		622	The resource class and name rxvt-unicode uses to look up X resources.
		623
		624	=item $urxvt::RXVTNAME
		625
		626	The basename of the installed binaries, usually C<urxvt>.
303		627
304	=item $urxvt::TERM	628	=item $urxvt::TERM
305		629
306	The current terminal. This variable stores the current C<urxvt::term>	630	The current terminal. This variable stores the current C<urxvt::term>
307	object, whenever a callback/hook is executing.	631	object, whenever a callback/hook is executing.
308		632
		633	=item @urxvt::TERM_INIT
		634
		635	All coderefs in this array will be called as methods of the next newly
		636	created C<urxvt::term> object (during the C<on_init> phase). The array
		637	gets cleared before the codereferences that were in it are being executed,
		638	so coderefs can push themselves onto it again if they so desire.
		639
		640	This complements to the perl-eval commandline option, but gets executed
		641	first.
		642
		643	=item @urxvt::TERM_EXT
		644
		645	Works similar to C<@TERM_INIT>, but contains perl package/class names, which
		646	get registered as normal extensions after calling the hooks in C<@TERM_INIT>
		647	but before other extensions. Gets cleared just like C<@TERM_INIT>.
		648
309	=back	649	=back
310		650
311	=head2 Functions in the C<urxvt> Package	651	=head2 Functions in the C<urxvt> Package
312		652
313	=over 4	653	=over 4
314
315	=item $term = new urxvt [arg...]
316
317	Creates a new terminal, very similar as if you had started it with
318	C<system $binfile, arg...>. Croaks (and probably outputs an error message)
319	if the new instance couldn't be created. Returns C<undef> if the new
320	instance didn't initialise perl, and the terminal object otherwise. The
321	C<init> and C<start> hooks will be called during the call.
322		654
323	=item urxvt::fatal $errormessage	655	=item urxvt::fatal $errormessage
324		656
325	Fatally aborts execution with the given error message. Avoid at all	657	Fatally aborts execution with the given error message. Avoid at all
326	costs! The only time this is acceptable is when the terminal process	658	costs! The only time this is acceptable is when the terminal process
…		…
333	that calls this function.	665	that calls this function.
334		666
335	Using this function has the advantage that its output ends up in the	667	Using this function has the advantage that its output ends up in the
336	correct place, e.g. on stderr of the connecting urxvtc client.	668	correct place, e.g. on stderr of the connecting urxvtc client.
337		669
338	=item $is_safe = urxvt::safe	670	Messages have a size limit of 1023 bytes currently.
339
340	Returns true when it is safe to do potentially unsafe things, such as
341	evaluating perl code specified by the user. This is true when urxvt was
342	started setuid or setgid.
343		671
344	=item $time = urxvt::NOW	672	=item $time = urxvt::NOW
345		673
346	Returns the "current time" (as per the event loop).	674	Returns the "current time" (as per the event loop).
347		675
348	=item urxvt::CurrentTime	676	=item urxvt::CurrentTime
349		677
350	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,	678	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
351	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,	679	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
352	Button4Mask, Button5Mask, AnyModifier	680	Button4Mask, Button5Mask, AnyModifier
		681
		682	=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
		683	ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
		684	PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
		685	Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
		686	KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
		687	ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
		688	FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
		689
		690	=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
		691	EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
		692	GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
		693	UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
		694	ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
		695	CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
		696	SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
353		697
354	Various constants for use in X calls and event processing.	698	Various constants for use in X calls and event processing.
355		699
356	=back	700	=back
357		701
…		…
386		730
387	=item $background = urxvt::GET_BASEBG $rend	731	=item $background = urxvt::GET_BASEBG $rend
388		732
389	Return the foreground/background colour index, respectively.	733	Return the foreground/background colour index, respectively.
390		734
391	=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)	735	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
392		736
393	=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)	737	=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
394		738
395	Replace the foreground/background colour in the rendition mask with the	739	Replace the foreground/background colour in the rendition mask with the
396	specified one.	740	specified one.
397		741
398	=item $value = urxvt::GET_CUSTOM ($rend)	742	=item $value = urxvt::GET_CUSTOM $rend
399		743
400	Return the "custom" value: Every rendition has 5 bits for use by	744	Return the "custom" value: Every rendition has 5 bits for use by
401	extensions. They can be set and changed as you like and are initially	745	extensions. They can be set and changed as you like and are initially
402	zero.	746	zero.
403		747
404	=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)	748	=item $rend = urxvt::SET_CUSTOM $rend, $new_value
405		749
406	Change the custom value.	750	Change the custom value.
407		751
408	=back	752	=back
409		753
410	=cut	754	=cut
411		755
412	package urxvt;
413
414	use utf8;
415	use strict;
416	use Scalar::Util ();
417	use List::Util ();
418
419	our $VERSION = 1;
420	our $TERM;
421	our @HOOKNAME;
422	our %OPTION;
423	our $LIBDIR;
424
425	BEGIN {	756	BEGIN {
426	urxvt->bootstrap;
427
428	# overwrite perl's warn	757	# overwrite perl's warn
429	*CORE::GLOBAL::warn = sub {	758	*CORE::GLOBAL::warn = sub {
430	my $msg = join "", @_;	759	my $msg = join "", @_;
431	$msg .= "\n"	760	$msg .= "\n"
432	unless $msg =~ /\n$/;	761	unless $msg =~ /\n$/;
433	urxvt::warn ($msg);	762	urxvt::warn ($msg);
434	};	763	};
435
436	delete $ENV{IFS};
437	delete $ENV{CDPATH};
438	delete $ENV{BASH_ENV};
439	$ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
440	}	764	}
441		765
442	my @hook_count;	766	no warnings 'utf8';
		767
443	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};	768	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
444		769
445	sub verbose {	770	sub verbose {
446	my ($level, $msg) = @_;	771	my ($level, $msg) = @_;
447	warn "$msg\n" if $level <= $verbosity;	772	warn "$msg\n" if $level <= $verbosity;
448	}	773	}
449		774
450	my $extension_pkg = "extension0000";
451	my %extension_pkg;	775	my %extension_pkg;
452		776
453	# load a single script into its own package, once only	777	# load a single script into its own package, once only
454	sub extension_package($) {	778	sub extension_package($) {
455	my ($path) = @_;	779	my ($path) = @_;
456		780
457	$extension_pkg{$path} ||= do {	781	$extension_pkg{$path} ||= do {
458	my $pkg = "urxvt::" . ($extension_pkg++);	782	$path =~ /([^\/\\]+)$/;
		783	my $pkg = $1;
		784	$pkg =~ s/[^[:word:]]/_/g;
		785	$pkg = "urxvt::ext::$pkg";
459		786
460	verbose 3, "loading extension '$path' into package '$pkg'";	787	verbose 3, "loading extension '$path' into package '$pkg'";
461		788
462	open my $fh, "<:raw", $path	789	open my $fh, "<:raw", $path
463	or die "$path: $!";	790	or die "$path: $!";
464		791
465	my $source = untaint "package $pkg; use strict; use utf8;\n"	792	my $source =
466	. "use base urxvt::term::proxy::;\n"	793	"package $pkg; use strict; use utf8; no warnings 'utf8';\n"
467	. "#line 1 \"$path\"\n{\n"	794	. "#line 1 \"$path\"\n{\n"
468	. (do { local $/; <$fh> })	795	. (do { local $/; <$fh> })
469	. "\n};\n1";	796	. "\n};\n1";
470		797
		798	eval $source
471	eval $source or die "$path: $@";	799	or die "$path: $@";
472		800
473	$pkg	801	$pkg
474	}	802	}
475	}	803	}
476		804
…		…
484	if ($htype == 0) { # INIT	812	if ($htype == 0) { # INIT
485	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");	813	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
486		814
487	my %ext_arg;	815	my %ext_arg;
488		816
		817	{
		818	my @init = @TERM_INIT;
		819	@TERM_INIT = ();
		820	$_->($TERM) for @init;
		821	my @pkg = @TERM_EXT;
		822	@TERM_EXT = ();
		823	$TERM->register_package ($_) for @pkg;
		824	}
		825
489	for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {	826	for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
490	if ($_ eq "default") {	827	if ($_ eq "default") {
491	$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup);	828	$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
492	} elsif (/^-(.*)$/) {	829	} elsif (/^-(.*)$/) {
493	delete $ext_arg{$1};	830	delete $ext_arg{$1};
494	} elsif (/^([^<]+)<(.*)>$/) {	831	} elsif (/^([^<]+)<(.*)>$/) {
495	push @{ $ext_arg{$1} }, $2;	832	push @{ $ext_arg{$1} }, $2;
496	} else {	833	} else {
…		…
519	if $verbosity >= 10;	856	if $verbosity >= 10;
520		857
521	keys %$cb;	858	keys %$cb;
522		859
523	while (my ($pkg, $cb) = each %$cb) {	860	while (my ($pkg, $cb) = each %$cb) {
524	$retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) }	861	my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
525	and last;	862	$retval ||= $retval_;
526		863
527	if ($@) {	864	if ($@) {
528	$TERM->ungrab; # better to lose the grab than the session	865	$TERM->ungrab; # better to lose the grab than the session
529	warn $@;	866	warn $@;
530	}	867	}
531	}	868	}
		869
		870	verbose 11, "$HOOKNAME[$htype] returning <$retval>"
		871	if $verbosity >= 11;
532	}	872	}
533		873
534	if ($htype == 1) { # DESTROY	874	if ($htype == 1) { # DESTROY
535	# remove hooks if unused
536	if (my $hook = $TERM->{_hook}) {
537	for my $htype (0..$#$hook) {
538	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
539	or set_should_invoke $htype, 0;
540	}
541	}
542
543	# clear package objects	875	# clear package objects
544	%$_ = () for values %{ $TERM->{_pkg} };	876	%$_ = () for values %{ $TERM->{_pkg} };
545		877
546	# clear package	878	# clear package
547	%$TERM = ();	879	%$TERM = ();
548	}	880	}
549		881
550	$retval	882	$retval
551	}	883	}
552		884
553	# urxvt::term::proxy	885	# urxvt::term::extension
554		886
555	sub urxvt::term::proxy::AUTOLOAD {	887	package urxvt::term::extension;
556	$urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/	888
		889	sub enable {
		890	my ($self, %hook) = @_;
		891	my $pkg = $self->{_pkg};
		892
		893	while (my ($name, $cb) = each %hook) {
		894	my $htype = $HOOKTYPE{uc $name};
		895	defined $htype
		896	or Carp::croak "unsupported hook type '$name'";
		897
		898	$self->set_should_invoke ($htype, +1)
		899	unless exists $self->{term}{_hook}[$htype]{$pkg};
		900
		901	$self->{term}{_hook}[$htype]{$pkg} = $cb;
		902	}
		903	}
		904
		905	sub disable {
		906	my ($self, @hook) = @_;
		907	my $pkg = $self->{_pkg};
		908
		909	for my $name (@hook) {
		910	my $htype = $HOOKTYPE{uc $name};
		911	defined $htype
		912	or Carp::croak "unsupported hook type '$name'";
		913
		914	$self->set_should_invoke ($htype, -1)
		915	if delete $self->{term}{_hook}[$htype]{$pkg};
		916	}
		917	}
		918
		919	our $AUTOLOAD;
		920
		921	sub AUTOLOAD {
		922	$AUTOLOAD =~ /:([^:]+)$/
557	or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";	923	or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
558		924
559	eval qq{	925	eval qq{
560	sub $urxvt::term::proxy::AUTOLOAD {	926	sub $AUTOLOAD {
561	my \$proxy = shift;	927	my \$proxy = shift;
562	\$proxy->{term}->$1 (\@_)	928	\$proxy->{term}->$1 (\@_)
563	}	929	}
564	1	930	1
565	} or die "FATAL: unable to compile method forwarder: $@";	931	} or die "FATAL: unable to compile method forwarder: $@";
566		932
567	goto &$urxvt::term::proxy::AUTOLOAD;	933	goto &$AUTOLOAD;
568	}	934	}
569		935
570	sub urxvt::term::proxy::DESTROY {	936	sub DESTROY {
571	# nop	937	# nop
572	}	938	}
573		939
574	# urxvt::destroy_hook	940	# urxvt::destroy_hook
575		941
…		…
585		951
586	=head2 The C<urxvt::anyevent> Class	952	=head2 The C<urxvt::anyevent> Class
587		953
588	The sole purpose of this class is to deliver an interface to the	954	The sole purpose of this class is to deliver an interface to the
589	C<AnyEvent> module - any module using it will work inside urxvt without	955	C<AnyEvent> module - any module using it will work inside urxvt without
590	further work. The only exception is that you cannot wait on condition	956	further programming. The only exception is that you cannot wait on
591	variables, but non-blocking condvar use is ok. What this means is that you	957	condition variables, but non-blocking condvar use is ok. What this means
592	cannot use blocking APIs, but the non-blocking variant should work.	958	is that you cannot use blocking APIs, but the non-blocking variant should
		959	work.
593		960
594	=cut	961	=cut
595		962
596	our $VERSION = 1;	963	our $VERSION = 1;
597		964
…		…
642	${$_[0]}++;	1009	${$_[0]}++;
643	}	1010	}
644		1011
645	sub urxvt::anyevent::condvar::wait {	1012	sub urxvt::anyevent::condvar::wait {
646	unless (${$_[0]}) {	1013	unless (${$_[0]}) {
647	require Carp;
648	Carp::croak ("AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API");	1014	Carp::croak "AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API";
649	}	1015	}
650	}	1016	}
651		1017
652	package urxvt::term;	1018	package urxvt::term;
653		1019
…		…
660	# find on_xxx subs in the package and register them	1026	# find on_xxx subs in the package and register them
661	# as hooks	1027	# as hooks
662	sub register_package {	1028	sub register_package {
663	my ($self, $pkg, $argv) = @_;	1029	my ($self, $pkg, $argv) = @_;
664		1030
665	my $proxy = bless { argv => $argv }, $pkg;	1031	no strict 'refs';
		1032
		1033	urxvt::verbose 6, "register package $pkg to $self";
		1034
		1035	@{"$pkg\::ISA"} = urxvt::term::extension::;
		1036
		1037	my $proxy = bless {
		1038	_pkg => $pkg,
		1039	argv => $argv,
		1040	}, $pkg;
666	Scalar::Util::weaken ($proxy->{term} = $TERM);	1041	Scalar::Util::weaken ($proxy->{term} = $self);
667		1042
668	$self->{_pkg}{$pkg} = $proxy;	1043	$self->{_pkg}{$pkg} = $proxy;
669		1044
670	for my $htype (0.. $#HOOKNAME) {	1045	for my $name (@HOOKNAME) {
671	my $name = $HOOKNAME[$htype];
672
673	my $ref = $pkg->can ("on_" . lc $name)	1046	if (my $ref = $pkg->can ("on_" . lc $name)) {
674	or next;	1047	$proxy->enable ($name => $ref);
675		1048	}
676	$self->{_hook}[$htype]{$pkg} = $ref;
677	$hook_count[$htype]++
678	or urxvt::set_should_invoke $htype, 1;
679	}	1049	}
680	}	1050	}
681		1051
		1052	=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
		1053
		1054	Creates a new terminal, very similar as if you had started it with system
		1055	C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
		1056	hash which defines the environment of the new terminal.
		1057
		1058	Croaks (and probably outputs an error message) if the new instance
		1059	couldn't be created. Returns C<undef> if the new instance didn't
		1060	initialise perl, and the terminal object otherwise. The C<init> and
		1061	C<start> hooks will be called during this call.
		1062
		1063	=cut
		1064
		1065	sub new {
		1066	my ($class, $env, @args) = @_;
		1067
		1068	_new ([ map "$_=$env->{$_}", keys %$env ], @args);
		1069	}
		1070
682	=item $term->destroy	1071	=item $term->destroy
683		1072
684	Destroy the terminal object (close the window, free resources etc.).	1073	Destroy the terminal object (close the window, free resources
		1074	etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
		1075	watchers (timers, io watchers) are still active.
		1076
		1077	=item $term->exec_async ($cmd[, @args])
		1078
		1079	Works like the combination of the C<fork>/C<exec> builtins, which executes
		1080	("starts") programs in the background. This function takes care of setting
		1081	the user environment before exec'ing the command (e.g. C<PATH>) and should
		1082	be preferred over explicit calls to C<exec> or C<system>.
		1083
		1084	Returns the pid of the subprocess or C<undef> on error.
		1085
		1086	=cut
		1087
		1088	sub exec_async {
		1089	my $self = shift;
		1090
		1091	my $pid = fork;
		1092
		1093	return $pid
		1094	if !defined $pid or $pid;
		1095
		1096	%ENV = %{ $self->env };
		1097
		1098	exec @_;
		1099	urxvt::_exit 255;
		1100	}
685		1101
686	=item $isset = $term->option ($optval[, $set])	1102	=item $isset = $term->option ($optval[, $set])
687		1103
688	Returns true if the option specified by C<$optval> is enabled, and	1104	Returns true if the option specified by C<$optval> is enabled, and
689	optionally change it. All option values are stored by name in the hash	1105	optionally change it. All option values are stored by name in the hash
…		…
692	Here is a a likely non-exhaustive list of option names, please see the	1108	Here is a a likely non-exhaustive list of option names, please see the
693	source file F</src/optinc.h> to see the actual list:	1109	source file F</src/optinc.h> to see the actual list:
694		1110
695	borderLess console cursorBlink cursorUnderline hold iconic insecure	1111	borderLess console cursorBlink cursorUnderline hold iconic insecure
696	intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage	1112	intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
697	pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating	1113	override-redirect pastableTabs pointerBlank reverseVideo scrollBar
698	scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer	1114	scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
699	secondaryScreen secondaryScroll skipBuiltinGlyphs transparent	1115	scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
700	tripleclickwords utmpInhibit visualBell	1116	transparent tripleclickwords utmpInhibit visualBell
701		1117
702	=item $value = $term->resource ($name[, $newval])	1118	=item $value = $term->resource ($name[, $newval])
703		1119
704	Returns the current resource value associated with a given name and	1120	Returns the current resource value associated with a given name and
705	optionally sets a new value. Setting values is most useful in the C<init>	1121	optionally sets a new value. Setting values is most useful in the C<init>
…		…
722		1138
723	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont	1139	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
724	borderLess color cursorBlink cursorUnderline cutchars delete_key	1140	borderLess color cursorBlink cursorUnderline cutchars delete_key
725	display_name embed ext_bwidth fade font geometry hold iconName	1141	display_name embed ext_bwidth fade font geometry hold iconName
726	imFont imLocale inputMethod insecure int_bwidth intensityStyles	1142	imFont imLocale inputMethod insecure int_bwidth intensityStyles
727	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier	1143	italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
728	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2	1144	mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
729	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd	1145	perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
730	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating	1146	preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
731	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput	1147	scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
732	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle	1148	scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
733	shade term_name title transparent transparent_all tripleclickwords	1149	secondaryScreen secondaryScroll selectstyle shade term_name title
734	utmpInhibit visualBell	1150	transient_for transparent transparent_all tripleclickwords utmpInhibit
		1151	visualBell
735		1152
736	=cut	1153	=cut
737		1154
738	sub resource($$;$) {	1155	sub resource($$;$) {
739	my ($self, $name) = (shift, shift);	1156	my ($self, $name) = (shift, shift);
740	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);	1157	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
741	&urxvt::term::_resource	1158	&urxvt::term::_resource
742	}	1159	}
743		1160
		1161	=item $value = $term->x_resource ($pattern)
		1162
		1163	Returns the X-Resource for the given pattern, excluding the program or
		1164	class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
		1165	same value as used by this instance of rxvt-unicode. Returns C<undef> if no
		1166	resource with that pattern exists.
		1167
		1168	This method should only be called during the C<on_start> hook, as there is
		1169	only one resource database per display, and later invocations might return
		1170	the wrong resources.
		1171
		1172	=item $success = $term->parse_keysym ($keysym_spec, $command_string)
		1173
		1174	Adds a keymap translation exactly as specified via a resource. See the
		1175	C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
		1176
744	=item $rend = $term->rstyle ([$new_rstyle])	1177	=item $rend = $term->rstyle ([$new_rstyle])
745		1178
746	Return and optionally change the current rendition. Text that is output by	1179	Return and optionally change the current rendition. Text that is output by
747	the terminal application will use this style.	1180	the terminal application will use this style.
748		1181
…		…
758	=item ($row, $col) = $term->selection_end ([$row, $col])	1191	=item ($row, $col) = $term->selection_end ([$row, $col])
759		1192
760	Return the current values of the selection mark, begin or end positions,	1193	Return the current values of the selection mark, begin or end positions,
761	and optionally set them to new values.	1194	and optionally set them to new values.
762		1195
		1196	=item $term->selection_make ($eventtime[, $rectangular])
		1197
		1198	Tries to make a selection as set by C<selection_beg> and
		1199	C<selection_end>. If C<$rectangular> is true (default: false), a
		1200	rectangular selection will be made. This is the prefered function to make
		1201	a selection.
		1202
763	=item $success = $term->selection_grab ($eventtime)	1203	=item $success = $term->selection_grab ($eventtime)
764		1204
765	Try to request the primary selection from the server (for example, as set	1205	Try to request the primary selection text from the server (for example, as
766	by the next method).	1206	set by the next method). No visual feedback will be given. This function
		1207	is mostly useful from within C<on_sel_grab> hooks.
767		1208
768	=item $oldtext = $term->selection ([$newtext])	1209	=item $oldtext = $term->selection ([$newtext])
769		1210
770	Return the current selection text and optionally replace it by C<$newtext>.	1211	Return the current selection text and optionally replace it by C<$newtext>.
771		1212
772	#=item $term->overlay ($x, $y, $text)	1213	=item $term->overlay_simple ($x, $y, $text)
773	#	1214
774	#Create a simple multi-line overlay box. See the next method for details.	1215	Create a simple multi-line overlay box. See the next method for details.
775	#	1216
776	#=cut	1217	=cut
777	#	1218
778	#sub urxvt::term::scr_overlay {	1219	sub overlay_simple {
779	# my ($self, $x, $y, $text) = @_;	1220	my ($self, $x, $y, $text) = @_;
780	#	1221
781	# my @lines = split /\n/, $text;	1222	my @lines = split /\n/, $text;
782	#	1223
783	# my $w = 0;	1224	my $w = List::Util::max map $self->strwidth ($_), @lines;
784	# for (map $self->strwidth ($_), @lines) {	1225
785	# $w = $_ if $w < $_;
786	# }
787	#
788	# $self->scr_overlay_new ($x, $y, $w, scalar @lines);	1226	my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
789	# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;	1227	$overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
790	#}	1228
		1229	$overlay
		1230	}
791		1231
792	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])	1232	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
793		1233
794	Create a new (empty) overlay at the given position with the given	1234	Create a new (empty) overlay at the given position with the given
795	width/height. C<$rstyle> defines the initial rendition style	1235	width/height. C<$rstyle> defines the initial rendition style
…		…
862		1302
863	=item $string = $term->locale_decode ($octets)	1303	=item $string = $term->locale_decode ($octets)
864		1304
865	Convert the given locale-encoded octets into a perl string.	1305	Convert the given locale-encoded octets into a perl string.
866		1306
		1307	=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
		1308
		1309	XORs the rendition values in the given span with the provided value
		1310	(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
		1311	refresh hooks to provide effects similar to the selection.
		1312
		1313	=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
		1314
		1315	Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
		1316	whitespace will additionally be xored with the C<$rstyle2>, which defaults
		1317	to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
		1318	it instead. Both styles I<MUST NOT> contain font styles.
		1319
		1320	=item $term->scr_bell
		1321
		1322	Ring the bell!
		1323
867	=item $term->scr_add_lines ($string)	1324	=item $term->scr_add_lines ($string)
868		1325
869	Write the given text string to the screen, as if output by the application	1326	Write the given text string to the screen, as if output by the application
870	running inside the terminal. It may not contain command sequences (escape	1327	running inside the terminal. It may not contain command sequences (escape
871	codes), but is free to use line feeds, carriage returns and tabs. The	1328	codes), but is free to use line feeds, carriage returns and tabs. The
…		…
873		1330
874	Normally its not a good idea to use this function, as programs might be	1331	Normally its not a good idea to use this function, as programs might be
875	confused by changes in cursor position or scrolling. Its useful inside a	1332	confused by changes in cursor position or scrolling. Its useful inside a
876	C<on_add_lines> hook, though.	1333	C<on_add_lines> hook, though.
877		1334
		1335	=item $term->scr_change_screen ($screen)
		1336
		1337	Switch to given screen - 0 primary, 1 secondary.
		1338
878	=item $term->cmd_parse ($octets)	1339	=item $term->cmd_parse ($octets)
879		1340
880	Similar to C<scr_add_lines>, but the argument must be in the	1341	Similar to C<scr_add_lines>, but the argument must be in the
881	locale-specific encoding of the terminal and can contain command sequences	1342	locale-specific encoding of the terminal and can contain command sequences
882	(escape codes) that will be interpreted.	1343	(escape codes) that will be interpreted.
…		…
885		1346
886	Write the octets given in C<$data> to the tty (i.e. as program input). To	1347	Write the octets given in C<$data> to the tty (i.e. as program input). To
887	pass characters instead of octets, you should convert your strings first	1348	pass characters instead of octets, you should convert your strings first
888	to the locale-specific encoding using C<< $term->locale_encode >>.	1349	to the locale-specific encoding using C<< $term->locale_encode >>.
889		1350
		1351	=item $old_events = $term->pty_ev_events ([$new_events])
		1352
		1353	Replaces the event mask of the pty watcher by the given event mask. Can
		1354	be used to suppress input and output handling to the pty/tty. See the
		1355	description of C<< urxvt::timer->events >>. Make sure to always restore
		1356	the previous value.
		1357
		1358	=item $fd = $term->pty_fd
		1359
		1360	Returns the master file descriptor for the pty in use, or C<-1> if no pty
		1361	is used.
		1362
890	=item $windowid = $term->parent	1363	=item $windowid = $term->parent
891		1364
892	Return the window id of the toplevel window.	1365	Return the window id of the toplevel window.
893		1366
894	=item $windowid = $term->vt	1367	=item $windowid = $term->vt
895		1368
896	Return the window id of the terminal window.	1369	Return the window id of the terminal window.
897		1370
		1371	=item $term->vt_emask_add ($x_event_mask)
		1372
		1373	Adds the specified events to the vt event mask. Useful e.g. when you want
		1374	to receive pointer events all the times:
		1375
		1376	$term->vt_emask_add (urxvt::PointerMotionMask);
		1377
898	=item $window_width = $term->width	1378	=item $window_width = $term->width
899		1379
900	=item $window_height = $term->height	1380	=item $window_height = $term->height
901		1381
902	=item $font_width = $term->fwidth	1382	=item $font_width = $term->fwidth
…		…
915		1395
916	=item $max_scrollback = $term->saveLines	1396	=item $max_scrollback = $term->saveLines
917		1397
918	=item $nrow_plus_saveLines = $term->total_rows	1398	=item $nrow_plus_saveLines = $term->total_rows
919		1399
920	=item $lines_in_scrollback = $term->nsaved	1400	=item $topmost_scrollback_row = $term->top_row
921		1401
922	Return various integers describing terminal characteristics.	1402	Return various integers describing terminal characteristics.
923		1403
		1404	=item $x_display = $term->display_id
		1405
		1406	Return the DISPLAY used by rxvt-unicode.
		1407
924	=item $lc_ctype = $term->locale	1408	=item $lc_ctype = $term->locale
925		1409
926	Returns the LC_CTYPE category string used by this rxvt-unicode.	1410	Returns the LC_CTYPE category string used by this rxvt-unicode.
927		1411
928	=item $x_display = $term->display_id	1412	=item $env = $term->env
929		1413
930	Return the DISPLAY used by rxvt-unicode.	1414	Returns a copy of the environment in effect for the terminal as a hashref
		1415	similar to C<\%ENV>.
		1416
		1417	=cut
		1418
		1419	sub env {
		1420	if (my $env = $_[0]->_env) {
		1421	+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), @$env }
		1422	} else {
		1423	+{ %ENV }
		1424	}
		1425	}
931		1426
932	=item $modifiermask = $term->ModLevel3Mask	1427	=item $modifiermask = $term->ModLevel3Mask
933		1428
934	=item $modifiermask = $term->ModMetaMask	1429	=item $modifiermask = $term->ModMetaMask
935		1430
936	=item $modifiermask = $term->ModNumLockMask	1431	=item $modifiermask = $term->ModNumLockMask
937		1432
938	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often	1433	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
939	AltGr), the meta key (often Alt) and the num lock key, if applicable.	1434	AltGr), the meta key (often Alt) and the num lock key, if applicable.
940		1435
		1436	=item $screen = $term->current_screen
		1437
		1438	Returns the currently displayed screen (0 primary, 1 secondary).
		1439
		1440	=item $cursor_is_hidden = $term->hidden_cursor
		1441
		1442	Returns wether the cursor is currently hidden or not.
		1443
941	=item $view_start = $term->view_start ([$newvalue])	1444	=item $view_start = $term->view_start ([$newvalue])
942		1445
943	Returns the negative row number of the topmost line. Minimum value is	1446	Returns the row number of the topmost displayed line. Maximum value is
944	C<0>, which displays the normal terminal contents. Larger values scroll	1447	C<0>, which displays the normal terminal contents. Lower values scroll
945	this many lines into the scrollback buffer.	1448	this many lines into the scrollback buffer.
946		1449
947	=item $term->want_refresh	1450	=item $term->want_refresh
948		1451
949	Requests a screen refresh. At the next opportunity, rxvt-unicode will	1452	Requests a screen refresh. At the next opportunity, rxvt-unicode will
…		…
964	line, starting at column C<$start_col> (default C<0>), which is useful	1467	line, starting at column C<$start_col> (default C<0>), which is useful
965	to replace only parts of a line. The font index in the rendition will	1468	to replace only parts of a line. The font index in the rendition will
966	automatically be updated.	1469	automatically be updated.
967		1470
968	C<$text> is in a special encoding: tabs and wide characters that use more	1471	C<$text> is in a special encoding: tabs and wide characters that use more
969	than one cell when displayed are padded with urxvt::NOCHAR characters	1472	than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
970	(C<chr 65535>). Characters with combining characters and other characters	1473	characters. Characters with combining characters and other characters that
971	that do not fit into the normal tetx encoding will be replaced with	1474	do not fit into the normal tetx encoding will be replaced with characters
972	characters in the private use area.	1475	in the private use area.
973		1476
974	You have to obey this encoding when changing text. The advantage is	1477	You have to obey this encoding when changing text. The advantage is
975	that C<substr> and similar functions work on screen cells and not on	1478	that C<substr> and similar functions work on screen cells and not on
976	characters.	1479	characters.
977		1480
…		…
1028	Return the row number of the first/last row of the line, respectively.	1531	Return the row number of the first/last row of the line, respectively.
1029		1532
1030	=item $offset = $line->offset_of ($row, $col)	1533	=item $offset = $line->offset_of ($row, $col)
1031		1534
1032	Returns the character offset of the given row|col pair within the logical	1535	Returns the character offset of the given row|col pair within the logical
1033	line.	1536	line. Works for rows outside the line, too, and returns corresponding
		1537	offsets outside the string.
1034		1538
1035	=item ($row, $col) = $line->coord_of ($offset)	1539	=item ($row, $col) = $line->coord_of ($offset)
1036		1540
1037	Translates a string offset into terminal coordinates again.	1541	Translates a string offset into terminal coordinates again.
1038		1542
…		…
1151		1655
1152	Calls XUngrab for the most recent grab. Is called automatically on	1656	Calls XUngrab for the most recent grab. Is called automatically on
1153	evaluation errors, as it is better to lose the grab in the error case as	1657	evaluation errors, as it is better to lose the grab in the error case as
1154	the session.	1658	the session.
1155		1659
		1660	=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
		1661
		1662	=item $atom_name = $term->XGetAtomName ($atom)
		1663
		1664	=item @atoms = $term->XListProperties ($window)
		1665
		1666	=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
		1667
		1668	=item $term->XChangeWindowProperty ($window, $property, $type, $format, $octets)
		1669
		1670	=item $term->XDeleteProperty ($window, $property)
		1671
		1672	=item $window = $term->DefaultRootWindow
		1673
		1674	=item $term->XReparentWindow ($window, $parent, [$x, $y])
		1675
		1676	=item $term->XMapWindow ($window)
		1677
		1678	=item $term->XUnmapWindow ($window)
		1679
		1680	=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
		1681
		1682	=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
		1683
		1684	=item $term->XChangeInput ($window, $add_events[, $del_events])
		1685
		1686	Various X or X-related functions. The C<$term> object only serves as
		1687	the source of the display, otherwise those functions map more-or-less
		1688	directory onto the X functions of the same name.
		1689
1156	=back	1690	=back
1157		1691
1158	=cut	1692	=cut
1159		1693
1160	package urxvt::popup;	1694	package urxvt::popup;
…		…
1174		1708
1175	$item->{render} ||= sub { $_[0]{text} };	1709	$item->{render} ||= sub { $_[0]{text} };
1176		1710
1177	push @{ $self->{item} }, $item;	1711	push @{ $self->{item} }, $item;
1178	}	1712	}
		1713
		1714	=item $popup->add_title ($title)
		1715
		1716	Adds a non-clickable title to the popup.
		1717
		1718	=cut
		1719
		1720	sub add_title {
		1721	my ($self, $title) = @_;
		1722
		1723	$self->add_item ({
		1724	rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
		1725	text => $title,
		1726	activate => sub { },
		1727	});
		1728	}
		1729
		1730	=item $popup->add_separator ([$sepchr])
		1731
		1732	Creates a separator, optionally using the character given as C<$sepchr>.
		1733
		1734	=cut
1179		1735
1180	sub add_separator {	1736	sub add_separator {
1181	my ($self, $sep) = @_;	1737	my ($self, $sep) = @_;
1182		1738
1183	$sep ||= "=";	1739	$sep ||= "=";
…		…
1188	render => sub { $sep x $self->{term}->ncol },	1744	render => sub { $sep x $self->{term}->ncol },
1189	activate => sub { },	1745	activate => sub { },
1190	});	1746	});
1191	}	1747	}
1192		1748
1193	sub add_title {	1749	=item $popup->add_button ($text, $cb)
1194	my ($self, $title) = @_;
1195		1750
1196	$self->add_item ({	1751	Adds a clickable button to the popup. C<$cb> is called whenever it is
1197	rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },	1752	selected.
1198	text => $title,	1753
1199	activate => sub { },	1754	=cut
1200	});
1201	}
1202		1755
1203	sub add_button {	1756	sub add_button {
1204	my ($self, $text, $cb) = @_;	1757	my ($self, $text, $cb) = @_;
1205		1758
1206	$self->add_item ({ type => "button", text => $text, activate => $cb});	1759	$self->add_item ({ type => "button", text => $text, activate => $cb});
1207	}	1760	}
		1761
		1762	=item $popup->add_toggle ($text, $cb, $initial_value)
		1763
		1764	Adds a toggle/checkbox item to the popup. Teh callback gets called
		1765	whenever it gets toggled, with a boolean indicating its value as its first
		1766	argument.
		1767
		1768	=cut
1208		1769
1209	sub add_toggle {	1770	sub add_toggle {
1210	my ($self, $text, $cb, $value) = @_;	1771	my ($self, $text, $cb, $value) = @_;
1211		1772
1212	my $item; $item = {	1773	my $item; $item = {
1213	type => "button",	1774	type => "button",
1214	text => " $text",	1775	text => " $text",
1215	value => $value,	1776	value => $value,
1216	render => sub { ($_[0]{value} ? "* " : " ") . $text },	1777	render => sub { ($_[0]{value} ? "* " : " ") . $text },
1217	activate => sub { $cb->($_[0]{value} = !$_[0]{value}); },	1778	activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
1218	};	1779	};
1219		1780
1220	$self->add_item ($item);	1781	$self->add_item ($item);
1221	}	1782	}
		1783
		1784	=item $popup->show
		1785
		1786	Displays the popup (which is initially hidden).
		1787
		1788	=cut
1222		1789
1223	sub show {	1790	sub show {
1224	my ($self) = @_;	1791	my ($self) = @_;
1225		1792
1226	local $urxvt::popup::self = $self;	1793	local $urxvt::popup::self = $self;
1227		1794
		1795	my $env = $self->{term}->env;
		1796	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
		1797	delete $env->{LC_ALL};
1228	local $ENV{LC_ALL} = $self->{term}->locale;	1798	$env->{LC_CTYPE} = $self->{term}->locale;
1229		1799
1230	urxvt->new ("--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0,	1800	urxvt::term->new ($env, "popup",
		1801	"--perl-lib" => "", "--perl-ext-common" => "",
		1802	"-pty-fd" => -1, "-sl" => 0,
		1803	"-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1231	"--transient-for" => $self->{term}->parent,	1804	"--transient-for" => $self->{term}->parent,
1232	"-display" => $self->{term}->display_id,	1805	"-display" => $self->{term}->display_id,
1233	"-pe" => "urxvt-popup")	1806	"-pe" => "urxvt-popup")
1234	or die "unable to create popup window\n";	1807	or die "unable to create popup window\n";
1235	}	1808	}
1236		1809
1237	sub DESTROY {	1810	sub DESTROY {
1238	my ($self) = @_;	1811	my ($self) = @_;
1239		1812
1240	delete $self->{term}{_destroy}{$self};	1813	delete $self->{term}{_destroy}{$self};
1241	$self->{term}->ungrab;	1814	$self->{term}->ungrab;
1242	}	1815	}
		1816
		1817	=back
		1818
		1819	=cut
		1820
		1821	package urxvt::watcher;
		1822
		1823	@urxvt::timer::ISA = __PACKAGE__;
		1824	@urxvt::iow::ISA = __PACKAGE__;
		1825	@urxvt::pw::ISA = __PACKAGE__;
		1826	@urxvt::iw::ISA = __PACKAGE__;
1243		1827
1244	=head2 The C<urxvt::timer> Class	1828	=head2 The C<urxvt::timer> Class
1245		1829
1246	This class implements timer watchers/events. Time is represented as a	1830	This class implements timer watchers/events. Time is represented as a
1247	fractional number of seconds since the epoch. Example:	1831	fractional number of seconds since the epoch. Example:
…		…
1286		1870
1287	=item $timer = $timer->start ($tstamp)	1871	=item $timer = $timer->start ($tstamp)
1288		1872
1289	Set the event trigger time to C<$tstamp> and start the timer.	1873	Set the event trigger time to C<$tstamp> and start the timer.
1290		1874
		1875	=item $timer = $timer->after ($delay)
		1876
		1877	Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
		1878
1291	=item $timer = $timer->stop	1879	=item $timer = $timer->stop
1292		1880
1293	Stop the timer.	1881	Stop the timer.
1294		1882
1295	=back	1883	=back
…		…
1300		1888
1301	$term->{socket} = ...	1889	$term->{socket} = ...
1302	$term->{iow} = urxvt::iow	1890	$term->{iow} = urxvt::iow
1303	->new	1891	->new
1304	->fd (fileno $term->{socket})	1892	->fd (fileno $term->{socket})
1305	->events (1) # wait for read data	1893	->events (urxvt::EVENT_READ)
1306	->start	1894	->start
1307	->cb (sub {	1895	->cb (sub {
1308	my ($iow, $revents) = @_;	1896	my ($iow, $revents) = @_;
1309	# $revents must be 1 here, no need to check	1897	# $revents must be 1 here, no need to check
1310	sysread $term->{socket}, my $buf, 8192	1898	sysread $term->{socket}, my $buf, 8192
…		…
1327		1915
1328	Set the filedescriptor (not handle) to watch.	1916	Set the filedescriptor (not handle) to watch.
1329		1917
1330	=item $iow = $iow->events ($eventmask)	1918	=item $iow = $iow->events ($eventmask)
1331		1919
1332	Set the event mask to watch. Bit #0 (value C<1>) enables watching for read	1920	Set the event mask to watch. The only allowed values are
1333	data, Bit #1 (value C<2>) enables watching for write data.	1921	C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed
		1922	together, or C<urxvt::EVENT_NONE>.
1334		1923
1335	=item $iow = $iow->start	1924	=item $iow = $iow->start
1336		1925
1337	Start watching for requested events on the given handle.	1926	Start watching for requested events on the given handle.
1338		1927
1339	=item $iow = $iow->stop	1928	=item $iow = $iow->stop
1340		1929
1341	Stop watching for events on the given filehandle.	1930	Stop watching for events on the given filehandle.
		1931
		1932	=back
		1933
		1934	=head2 The C<urxvt::iw> Class
		1935
		1936	This class implements idle watchers, that get called automatically when
		1937	the process is idle. They should return as fast as possible, after doing
		1938	some useful work.
		1939
		1940	=over 4
		1941
		1942	=item $iw = new urxvt::iw
		1943
		1944	Create a new idle watcher object in stopped state.
		1945
		1946	=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
		1947
		1948	Set the callback to be called when the watcher triggers.
		1949
		1950	=item $timer = $timer->start
		1951
		1952	Start the watcher.
		1953
		1954	=item $timer = $timer->stop
		1955
		1956	Stop the watcher.
		1957
		1958	=back
		1959
		1960	=head2 The C<urxvt::pw> Class
		1961
		1962	This class implements process watchers. They create an event whenever a
		1963	process exits, after which they stop automatically.
		1964
		1965	my $pid = fork;
		1966	...
		1967	$term->{pw} = urxvt::pw
		1968	->new
		1969	->start ($pid)
		1970	->cb (sub {
		1971	my ($pw, $exit_status) = @_;
		1972	...
		1973	});
		1974
		1975	=over 4
		1976
		1977	=item $pw = new urxvt::pw
		1978
		1979	Create a new process watcher in stopped state.
		1980
		1981	=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
		1982
		1983	Set the callback to be called when the timer triggers.
		1984
		1985	=item $pw = $timer->start ($pid)
		1986
		1987	Tells the wqtcher to start watching for process C<$pid>.
		1988
		1989	=item $pw = $pw->stop
		1990
		1991	Stop the watcher.
1342		1992
1343	=back	1993	=back
1344		1994
1345	=head1 ENVIRONMENT	1995	=head1 ENVIRONMENT
1346		1996
…		…
1353		2003
1354	=item == 0 - fatal messages	2004	=item == 0 - fatal messages
1355		2005
1356	=item >= 3 - script loading and management	2006	=item >= 3 - script loading and management
1357		2007
1358	=item >=10 - all events received	2008	=item >=10 - all called hooks
		2009
		2010	=item >=11 - hook reutrn values
1359		2011
1360	=back	2012	=back
1361		2013
1362	=head1 AUTHOR	2014	=head1 AUTHOR
1363		2015

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