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Revision 1.34 by root, Fri Jan 6 01:16:58 2006 UTC vs.
Revision 1.225 by root, Fri Aug 10 19:06:06 2012 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 "vars"' 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
33	This section describes the extensiosn delivered with this version. You can	34	=head1 PREPACKAGED EXTENSIONS
34	find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.	35
		36	A number of extensions are delivered with this release. You can find them
		37	in F<@@RXVT_LIBDIR@@/urxvt/perl/>, and the documentation can be viewed
		38	using F<< man urxvt-<EXTENSIONNAME> >>.
35		39
36	You can activate them like this:	40	You can activate them like this:
37		41
38	@@RXVT_NAME@@ -pe <extensionname>	42	@@RXVT_NAME@@ -pe <extensionname>
39		43
40	=over 4	44	Or by adding them to the resource for extensions loaded by default:
41		45
42	=item selection	46	URxvt.perl-ext-common: default,selection-autotransform
43		47
44	Intelligent selection. This extension tries to be more intelligent when	48	Extensions that add command line parameters or resources on their own are
45	the user extends selections (double-click). Right now, it tries to select	49	loaded automatically when used.
46	urls and complete shell-quoted arguments, which is very convenient, too,
47	if your F<ls> supports C<--quoting-style=shell>.
48		50
49	It also offers the following bindable event:	51	=head1 API DOCUMENTATION
50
51	=over 4
52
53	=item rot13
54
55	Rot-13 the selection when activated. Used via keyboard trigger:
56
57	URxvt.keysym.C-M-r: perl:selection:rot13
58
59	=back
60
61	=item digital-clock
62
63	Displays a digital clock using the built-in overlay.
64
65	=item example-refresh-hooks
66
67	Displays a very simple digital clock in the upper right corner of the
68	window. Illustrates overwriting the refresh callbacks to create your own
69	overlays or changes.
70
71	=item mark-urls
72
73	A not very useful example of filtering all text output to the terminal, by
74	underlining all urls that matches a certain regex (i.e. some urls :). It
75	is not very useful because urls that are output in multiple steps (e.g.
76	when typing them) do not get marked.
77
78	=back
79		52
80	=head2 General API Considerations	53	=head2 General API Considerations
81		54
82	All objects (such as terminals, time watchers etc.) are typical	55	All objects (such as terminals, time watchers etc.) are typical
83	reference-to-hash objects. The hash can be used to store anything you	56	reference-to-hash objects. The hash can be used to store anything you
…		…
95		68
96	=over 4	69	=over 4
97		70
98	=item $text	71	=item $text
99		72
100	Rxvt-unicodes special way of encoding text, where one "unicode" character	73	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.	74	always represents one screen cell. See L<ROW_t> for a discussion of this format.
102		75
103	=item $string	76	=item $string
104		77
105	A perl text string, with an emphasis on I<text>. It can store all unicode	78	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	79	characters and is to be distinguished with text encoded in a specific
…		…
109	=item $octets	82	=item $octets
110		83
111	Either binary data or - more common - a text string encoded in a	84	Either binary data or - more common - a text string encoded in a
112	locale-specific way.	85	locale-specific way.
113		86
		87	=item $keysym
		88
		89	an integer that is a valid X11 keysym code. You can convert a string
		90	into a keysym and viceversa by using C<XStringToKeysym> and
		91	C<XKeysymToString>.
		92
114	=back	93	=back
115		94
		95	=head2 Extension Objects
		96
		97	Every perl extension is a perl class. A separate perl object is created
		98	for each terminal, and each terminal has its own set of extension objects,
		99	which are passed as the first parameter to hooks. So extensions can use
		100	their C<$self> object without having to think about clashes with other
		101	extensions or other terminals, with the exception of methods and members
		102	that begin with an underscore character C<_>: these are reserved for
		103	internal use.
		104
		105	Although it isn't a C<urxvt::term> object, you can call all methods of the
		106	C<urxvt::term> class on this object.
		107
		108	Additional methods only supported for extension objects are described in
		109	the C<urxvt::extension> section below.
		110
116	=head2 Hooks	111	=head2 Hooks
117		112
118	The following subroutines can be declared in loaded scripts, and will be	113	The following subroutines can be declared in extension files, and will be
119	called whenever the relevant event happens.	114	called whenever the relevant event happens.
120		115
121	The first argument passed to them is an object private to each terminal	116	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	117	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		118
127	All of them must return a boolean value. If it is true, then the event	119	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,	120	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.	121	relevant action might not be carried out by the C++ code.
130		122
131	When in doubt, return a false value (preferably C<()>).	123	I<< When in doubt, return a false value (preferably C<()>). >>
132		124
133	=over 4	125	=over 4
134		126
135	=item on_init $term	127	=item on_init $term
136		128
137	Called after a new terminal object has been initialized, but before	129	Called after a new terminal object has been initialized, but before
138	windows are created or the command gets run.	130	windows are created or the command gets run. Most methods are unsafe to
		131	call or deliver senseless data, as terminal size and other characteristics
		132	have not yet been determined. You can safely query and change resources
		133	and options, though. For many purposes the C<on_start> hook is a better
		134	place.
		135
		136	=item on_start $term
		137
		138	Called at the very end of initialisation of a new terminal, just before
		139	trying to map (display) the toplevel and returning to the main loop.
		140
		141	=item on_destroy $term
		142
		143	Called whenever something tries to destroy terminal, when the terminal is
		144	still fully functional (not for long, though).
139		145
140	=item on_reset $term	146	=item on_reset $term
141		147
142	Called after the screen is "reset" for any reason, such as resizing or	148	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	149	control sequences. Here is where you can react on changes to size-related
144	variables.	150	variables.
145		151
146	=item on_start $term	152	=item on_child_start $term, $pid
147		153
148	Called at the very end of initialisation of a new terminal, just before	154	Called just after the child process has been C<fork>ed.
149	returning to the mainloop.	155
		156	=item on_child_exit $term, $status
		157
		158	Called just after the child process has exited. C<$status> is the status
		159	from C<waitpid>.
150		160
151	=item on_sel_make $term, $eventtime	161	=item on_sel_make $term, $eventtime
152		162
153	Called whenever a selection has been made by the user, but before the	163	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	164	selection text is copied, so changes to the beginning, end or type of the
…		…
161		171
162	Called whenever a selection has been copied, but before the selection is	172	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	173	requested from the server. The selection text can be queried and changed
164	by calling C<< $term->selection >>.	174	by calling C<< $term->selection >>.
165		175
166	Returning a true value aborts selection grabbing. It will still be hilighted.	176	Returning a true value aborts selection grabbing. It will still be highlighted.
167		177
168	=item on_sel_extend $term	178	=item on_sel_extend $term
169		179
170	Called whenever the user tries to extend the selection (e.g. with a double	180	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	181	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	182	should extend the selection itself and return true to suppress the built-in
173	processing.	183	processing. This can happen multiple times, as long as the callback
		184	returns true, it will be called on every further click by the user and is
		185	supposed to enlarge the selection more and more, if possible.
174		186
175	See the F<selection> example extension.	187	See the F<selection> example extension.
176		188
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	189	=item on_view_change $term, $offset
188		190
189	Called whenever the view offset changes, i..e the user or program	191	Called whenever the view offset changes, i.e. the user or program
190	scrolls. Offset C<0> means display the normal terminal, positive values	192	scrolls. Offset C<0> means display the normal terminal, positive values
191	show this many lines of scrollback.	193	show this many lines of scrollback.
192		194
193	=item on_scroll_back $term, $lines, $saved	195	=item on_scroll_back $term, $lines, $saved
194		196
…		…
198		200
199	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,	201	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	202	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
201	number of lines that will be in the scrollback buffer.	203	number of lines that will be in the scrollback buffer.
202		204
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	205	=item on_osc_seq $term, $op, $args, $resp
		206
		207	Called on every OSC sequence and can be used to suppress it or modify its
		208	behaviour. The default should be to return an empty list. A true value
		209	suppresses execution of the request completely. Make sure you don't get
		210	confused by recursive invocations when you output an OSC sequence within
		211	this callback.
		212
		213	C<on_osc_seq_perl> should be used for new behaviour.
		214
		215	=item on_osc_seq_perl $term, $args, $resp
208		216
209	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =	217	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
210	operating system command) is processed. Cursor position and other state	218	operating system command) is processed. Cursor position and other state
211	information is up-to-date when this happens. For interoperability, the	219	information is up-to-date when this happens. For interoperability, the
212	string should start with the extension name and a colon, to distinguish	220	string should start with the extension name (sans -osc) and a semicolon,
213	it from commands for other extensions, and this might be enforced in the	221	to distinguish it from commands for other extensions, and this might be
214	future.	222	enforced in the future.
		223
		224	For example, C<overlay-osc> uses this:
		225
		226	sub on_osc_seq_perl {
		227	my ($self, $osc, $resp) = @_;
		228
		229	return unless $osc =~ s/^overlay;//;
		230
		231	... process remaining $osc string
		232	}
215		233
216	Be careful not ever to trust (in a security sense) the data you receive,	234	Be careful not ever to trust (in a security sense) the data you receive,
217	as its source can not easily be controleld (e-mail content, messages from	235	as its source can not easily be controlled (e-mail content, messages from
218	other users on the same system etc.).	236	other users on the same system etc.).
		237
		238	For responses, C<$resp> contains the end-of-args separator used by the
		239	sender.
219		240
220	=item on_add_lines $term, $string	241	=item on_add_lines $term, $string
221		242
222	Called whenever text is about to be output, with the text as argument. You	243	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	244	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	245	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	246	might be very slow, however, as your hook is called for B<all> text being
226	output.	247	output.
227		248
		249	=item on_tt_write $term, $octets
		250
		251	Called whenever some data is written to the tty/pty and can be used to
		252	suppress or filter tty input.
		253
		254	=item on_tt_paste $term, $octets
		255
		256	Called whenever text is about to be pasted, with the text as argument. You
		257	can filter/change and paste the text yourself by returning a true value
		258	and calling C<< $term->tt_paste >> yourself. C<$octets> is
		259	locale-encoded.
		260
		261	=item on_line_update $term, $row
		262
		263	Called whenever a line was updated or changed. Can be used to filter
		264	screen output (e.g. underline urls or other useless stuff). Only lines
		265	that are being shown will be filtered, and, due to performance reasons,
		266	not always immediately.
		267
		268	The row number is always the topmost row of the line if the line spans
		269	multiple rows.
		270
		271	Please note that, if you change the line, then the hook might get called
		272	later with the already-modified line (e.g. if unrelated parts change), so
		273	you cannot just toggle rendition bits, but only set them.
		274
228	=item on_refresh_begin $term	275	=item on_refresh_begin $term
229		276
230	Called just before the screen gets redrawn. Can be used for overlay	277	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	278	similar effects by modifying the terminal contents in refresh_begin, and
232	restoring them in refresh_end. The built-in overlay and selection display	279	restoring them in refresh_end. The built-in overlay and selection display
233	code is run after this hook, and takes precedence.	280	code is run after this hook, and takes precedence.
234		281
235	=item on_refresh_end $term	282	=item on_refresh_end $term
236		283
237	Called just after the screen gets redrawn. See C<on_refresh_begin>.	284	Called just after the screen gets redrawn. See C<on_refresh_begin>.
238		285
239	=item on_keyboard_command $term, $string	286	=item on_user_command $term, $string
240		287
241	Called whenever the user presses a key combination that has a	288	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>	289	a C<perl:string> action bound to a key, see description of the B<keysym>
243	resource in the @@RXVT_NAME@@(1) manpage).	290	resource in the @@RXVT_NAME@@(1) manpage).
244		291
		292	The event is simply the action string. This interface is assumed to change
		293	slightly in the future.
		294
		295	=item on_register_command $term, $keysym, $modifiermask, $string
		296
		297	Called after parsing a keysym resource but before registering the
		298	associated binding. If this hook returns TRUE the binding is not
		299	registered. It can be used to modify a binding by calling
		300	C<register_command>.
		301
		302	=item on_resize_all_windows $term, $new_width, $new_height
		303
		304	Called just after the new window size has been calculated, but before
		305	windows are actually being resized or hints are being set. If this hook
		306	returns TRUE, setting of the window hints is being skipped.
		307
		308	=item on_x_event $term, $event
		309
		310	Called on every X event received on the vt window (and possibly other
		311	windows). Should only be used as a last resort. Most event structure
		312	members are not passed.
		313
		314	=item on_root_event $term, $event
		315
		316	Like C<on_x_event>, but is called for events on the root window.
		317
		318	=item on_focus_in $term
		319
		320	Called whenever the window gets the keyboard focus, before rxvt-unicode
		321	does focus in processing.
		322
		323	=item on_focus_out $term
		324
		325	Called whenever the window loses keyboard focus, before rxvt-unicode does
		326	focus out processing.
		327
		328	=item on_configure_notify $term, $event
		329
		330	=item on_property_notify $term, $event
		331
		332	=item on_key_press $term, $event, $keysym, $octets
		333
		334	=item on_key_release $term, $event, $keysym
		335
		336	=item on_button_press $term, $event
		337
		338	=item on_button_release $term, $event
		339
		340	=item on_motion_notify $term, $event
		341
		342	=item on_map_notify $term, $event
		343
		344	=item on_unmap_notify $term, $event
		345
		346	Called whenever the corresponding X event is received for the terminal. If
		347	the hook returns true, then the event will be ignored by rxvt-unicode.
		348
		349	The event is a hash with most values as named by Xlib (see the XEvent
		350	manpage), with the additional members C<row> and C<col>, which are the
		351	(real, not screen-based) row and column under the mouse cursor.
		352
		353	C<on_key_press> additionally receives the string rxvt-unicode would
		354	output, if any, in locale-specific encoding.
		355
		356	subwindow.
		357
		358	=item on_client_message $term, $event
		359
		360	=item on_wm_protocols $term, $event
		361
		362	=item on_wm_delete_window $term, $event
		363
		364	Called when various types of ClientMessage events are received (all with
		365	format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
		366
		367	=item on_bell $term
		368
		369	Called on receipt of a bell character.
		370
245	=back	371	=back
246		372
		373	=cut
		374
		375	package urxvt;
		376
		377	use utf8;
		378	use strict 'vars';
		379	use Carp ();
		380	use Scalar::Util ();
		381	use List::Util ();
		382
		383	our $VERSION = 1;
		384	our $TERM;
		385	our @TERM_INIT; # should go, prevents async I/O etc.
		386	our @TERM_EXT; # should go, prevents async I/O etc.
		387	our @HOOKNAME;
		388	our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
		389	our %OPTION;
		390
		391	our $LIBDIR;
		392	our $RESNAME;
		393	our $RESCLASS;
		394	our $RXVTNAME;
		395
		396	our $NOCHAR = chr 0xffff;
		397
247	=head2 Variables in the C<urxvt> Package	398	=head2 Variables in the C<urxvt> Package
248		399
249	=over 4	400	=over 4
250		401
		402	=item $urxvt::LIBDIR
		403
		404	The rxvt-unicode library directory, where, among other things, the perl
		405	modules and scripts are stored.
		406
		407	=item $urxvt::RESCLASS, $urxvt::RESCLASS
		408
		409	The resource class and name rxvt-unicode uses to look up X resources.
		410
		411	=item $urxvt::RXVTNAME
		412
		413	The basename of the installed binaries, usually C<urxvt>.
		414
251	=item $urxvt::TERM	415	=item $urxvt::TERM
252		416
253	The current terminal. Whenever a callback/Hook is bein executed, this	417	The current terminal. This variable stores the current C<urxvt::term>
254	variable stores the current C<urxvt::term> object.	418	object, whenever a callback/hook is executing.
		419
		420	=item @urxvt::TERM_INIT
		421
		422	All code references in this array will be called as methods of the next newly
		423	created C<urxvt::term> object (during the C<on_init> phase). The array
		424	gets cleared before the code references that were in it are being executed,
		425	so references can push themselves onto it again if they so desire.
		426
		427	This complements to the perl-eval command line option, but gets executed
		428	first.
		429
		430	=item @urxvt::TERM_EXT
		431
		432	Works similar to C<@TERM_INIT>, but contains perl package/class names, which
		433	get registered as normal extensions after calling the hooks in C<@TERM_INIT>
		434	but before other extensions. Gets cleared just like C<@TERM_INIT>.
255		435
256	=back	436	=back
257		437
258	=head2 Functions in the C<urxvt> Package	438	=head2 Functions in the C<urxvt> Package
259		439
260	=over 4	440	=over 4
261		441
262	=item urxvt::fatal $errormessage	442	=item urxvt::fatal $errormessage
263		443
264	Fatally aborts execution with the given error message. Avoid at all	444	Fatally aborts execution with the given error message (which should
265	costs! The only time this is acceptable is when the terminal process	445	include a trailing newline). Avoid at all costs! The only time this
266	starts up.	446	is acceptable (and useful) is in the init hook, where it prevents the
		447	terminal from starting up.
267		448
268	=item urxvt::warn $string	449	=item urxvt::warn $string
269		450
270	Calls C<rxvt_warn> with the given string which should not include a	451	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	452	newline. The module also overwrites the C<warn> builtin with a function
272	that calls this function.	453	that calls this function.
273		454
274	Using this function has the advantage that its output ends up in the	455	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.	456	correct place, e.g. on stderr of the connecting urxvtc client.
276		457
		458	Messages have a size limit of 1023 bytes currently.
		459
		460	=item @terms = urxvt::termlist
		461
		462	Returns all urxvt::term objects that exist in this process, regardless of
		463	whether they are started, being destroyed etc., so be careful. Only term
		464	objects that have perl extensions attached will be returned (because there
		465	is no urxvt::term object associated with others).
		466
277	=item $time = urxvt::NOW	467	=item $time = urxvt::NOW
278		468
279	Returns the "current time" (as per the event loop).	469	Returns the "current time" (as per the event loop).
		470
		471	=item urxvt::CurrentTime
		472
		473	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
		474	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
		475	Button4Mask, Button5Mask, AnyModifier
		476
		477	=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
		478	ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
		479	PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
		480	Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
		481	KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
		482	ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
		483	FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
		484
		485	=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
		486	EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
		487	GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
		488	UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
		489	ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
		490	CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
		491	SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
		492
		493	Various constants for use in X calls and event processing.
280		494
281	=back	495	=back
282		496
283	=head2 RENDITION	497	=head2 RENDITION
284		498
…		…
299		513
300	=item $rend = urxvt::OVERLAY_RSTYLE	514	=item $rend = urxvt::OVERLAY_RSTYLE
301		515
302	Return the rendition mask used for overlays by default.	516	Return the rendition mask used for overlays by default.
303		517
304	=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline	518	=item $rendbit = urxvt::RS_Bold, urxvt::RS_Italic, urxvt::RS_Blink,
		519	urxvt::RS_RVid, urxvt::RS_Uline
305		520
306	Return the bit that enabled bold, italic, blink, reverse-video and	521	Return the bit that enabled bold, italic, blink, reverse-video and
307	underline, respectively. To enable such a style, just logically OR it into	522	underline, respectively. To enable such a style, just logically OR it into
308	the bitset.	523	the bitset.
309		524
…		…
311		526
312	=item $background = urxvt::GET_BASEBG $rend	527	=item $background = urxvt::GET_BASEBG $rend
313		528
314	Return the foreground/background colour index, respectively.	529	Return the foreground/background colour index, respectively.
315		530
316	=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)	531	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
317		532
318	=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)	533	=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
		534
		535	=item $rend = urxvt::SET_COLOR $rend, $new_fg, $new_bg
319		536
320	Replace the foreground/background colour in the rendition mask with the	537	Replace the foreground/background colour in the rendition mask with the
321	specified one.	538	specified one.
322		539
323	=item $value = urxvt::GET_CUSTOM ($rend)	540	=item $value = urxvt::GET_CUSTOM $rend
324		541
325	Return the "custom" value: Every rendition has 5 bits for use by	542	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	543	extensions. They can be set and changed as you like and are initially
327	zero.	544	zero.
328		545
329	=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)	546	=item $rend = urxvt::SET_CUSTOM $rend, $new_value
330		547
331	Change the custom value.	548	Change the custom value.
332		549
333	=back	550	=back
334		551
335	=cut	552	=cut
336		553
337	package urxvt;
338
339	use strict;
340	use Scalar::Util ();
341
342	our $TERM;
343	our @HOOKNAME;
344	our $LIBDIR;
345
346	BEGIN {	554	BEGIN {
347	urxvt->bootstrap;
348
349	# overwrite perl's warn	555	# overwrite perl's warn
350	*CORE::GLOBAL::warn = sub {	556	*CORE::GLOBAL::warn = sub {
351	my $msg = join "", @_;	557	my $msg = join "", @_;
352	$msg .= "\n"	558	$msg .= "\n"
353	unless $msg =~ /\n$/;	559	unless $msg =~ /\n$/;
354	urxvt::warn ($msg);	560	urxvt::warn ($msg);
355	};	561	};
356	}	562	}
357		563
358	my @hook_count;	564	no warnings 'utf8';
		565
		566	sub parse_resource {
		567	my ($term, $name, $isarg, $longopt, $flag, $value) = @_;
		568
		569	$name =~ y/-/./ if $isarg;
		570
		571	$term->scan_meta;
		572
		573	my $r = $term->{meta}{resource};
		574	keys %$r; # reste iterator
		575	while (my ($pattern, $v) = each %$r) {
		576	if (
		577	$pattern =~ /\.$/
		578	? $pattern eq substr $name, 0, length $pattern
		579	: $pattern eq $name
		580	) {
		581	$name = "$urxvt::RESCLASS.$name";
		582
		583	push @{ $term->{perl_ext_3} }, $v->[0];
		584
		585	if ($v->[1] eq "boolean") {
		586	$term->put_option_db ($name, $flag ? "true" : "false");
		587	return 1;
		588	} else {
		589	$term->put_option_db ($name, $value);
		590	return 1 + 2;
		591	}
		592	}
		593	}
		594
		595	0
		596	}
		597
		598	sub usage {
		599	my ($term, $usage_type) = @_;
		600
		601	$term->scan_meta;
		602
		603	my $r = $term->{meta}{resource};
		604
		605	for my $pattern (sort keys %$r) {
		606	my ($ext, $type, $desc) = @{ $r->{$pattern} };
		607
		608	$desc .= " (-pe $ext)";
		609
		610	if ($usage_type == 1) {
		611	$pattern =~ y/./-/;
		612	$pattern =~ s/-$/-.../g;
		613
		614	if ($type eq "boolean") {
		615	urxvt::log sprintf " -%-30s %s\n", "/+$pattern", $desc;
		616	} else {
		617	urxvt::log sprintf " -%-30s %s\n", "$pattern $type", $desc;
		618	}
		619	} else {
		620	$pattern =~ s/\.$/.*/g;
		621	urxvt::log sprintf " %-31s %s\n", "$pattern:", $type;
		622	}
		623	}
		624	}
		625
359	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};	626	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
360		627
361	sub verbose {	628	sub verbose {
362	my ($level, $msg) = @_;	629	my ($level, $msg) = @_;
363	warn "$msg\n" if $level <= $verbosity;	630	warn "$msg\n" if $level <= $verbosity;
364	}	631	}
365		632
366	# find on_xxx subs in the package and register them	633	my %extension_pkg;
367	# as hooks
368	sub register_package($) {
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 $script_pkg = "script0000";
384	my %script_pkg;
385		634
386	# load a single script into its own package, once only	635	# load a single script into its own package, once only
387	sub script_package($) {	636	sub extension_package($) {
388	my ($path) = @_;	637	my ($path) = @_;
389		638
390	$script_pkg{$path} ||= do {	639	$extension_pkg{$path} ||= do {
391	my $pkg = "urxvt::" . ($script_pkg++);	640	$path =~ /([^\/\\]+)$/;
		641	my $pkg = $1;
		642	$pkg =~ s/[^[:word:]]/_/g;
		643	$pkg = "urxvt::ext::$pkg";
392		644
393	verbose 3, "loading script '$path' into package '$pkg'";	645	verbose 3, "loading extension '$path' into package '$pkg'";
		646
		647	(${"$pkg\::_NAME"} = $path) =~ s/^.*[\\\/]//; # hackish
394		648
395	open my $fh, "<:raw", $path	649	open my $fh, "<:raw", $path
396	or die "$path: $!";	650	or die "$path: $!";
397		651
398	my $source = "package $pkg; use strict; use utf8;\n"	652	my $source =
		653	"package $pkg; use strict 'vars'; use utf8; no warnings 'utf8';\n"
399	. "#line 1 \"$path\"\n{\n"	654	. "#line 1 \"$path\"\n{\n"
400	. (do { local $/; <$fh> })	655	. (do { local $/; <$fh> })
401	. "\n};\n1";	656	. "\n};\n1";
402		657
		658	eval $source
403	eval $source or die "$path: $@";	659	or die "$path: $@";
404		660
405	$pkg	661	$pkg
406	}	662	}
407	}	663	}
408		664
…		…
412	sub invoke {	668	sub invoke {
413	local $TERM = shift;	669	local $TERM = shift;
414	my $htype = shift;	670	my $htype = shift;
415		671
416	if ($htype == 0) { # INIT	672	if ($htype == 0) { # INIT
417	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");	673	my @dirs = $TERM->perl_libdirs;
418		674
		675	my %ext_arg;
		676
		677	{
		678	my @init = @TERM_INIT;
		679	@TERM_INIT = ();
		680	$_->($TERM) for @init;
		681	my @pkg = @TERM_EXT;
		682	@TERM_EXT = ();
		683	$TERM->register_package ($_) for @pkg;
		684	}
		685
		686	for (
		687	@{ delete $TERM->{perl_ext_3} },
419	for my $ext (map { split /:/, $TERM->resource ("perl_ext_$_") } 1, 2) {	688	grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2
		689	) {
		690	if ($_ eq "default") {
		691	$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
		692	} elsif (/^-(.*)$/) {
		693	delete $ext_arg{$1};
		694	} elsif (/^([^<]+)<(.*)>$/) {
		695	push @{ $ext_arg{$1} }, $2;
		696	} else {
		697	$ext_arg{$_} ||= [];
		698	}
		699	}
		700
		701	for my $ext (sort keys %ext_arg) {
420	my @files = grep -f $_, map "$_/$ext", @dirs;	702	my @files = grep -f $_, map "$_/$ext", @dirs;
421		703
422	if (@files) {	704	if (@files) {
423	register_package script_package $files[0];	705	$TERM->register_package (extension_package $files[0], $ext_arg{$ext});
424	} else {	706	} else {
425	warn "perl extension '$ext' not found in perl library search path\n";	707	warn "perl extension '$ext' not found in perl library search path\n";
426	}	708	}
427	}	709	}
		710
		711	eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval");
		712	warn $@ if $@;
428	}	713	}
429		714
430	$retval = undef;	715	$retval = undef;
431		716
432	if (my $cb = $TERM->{_hook}[$htype]) {	717	if (my $cb = $TERM->{_hook}[$htype]) {
433	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"	718	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
434	if $verbosity >= 10;	719	if $verbosity >= 10;
435		720
436	keys %$cb;	721	for my $pkg (keys %$cb) {
		722	my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg} || $TERM, @_) };
		723	$retval ||= $retval_;
437		724
438	while (my ($pkg, $cb) = each %$cb) {	725	if ($@) {
439	$retval = $cb->(	726	$TERM->ungrab; # better to lose the grab than the session
440	$TERM->{_pkg}{$pkg} ||= do {	727	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 $htype, 0;
456	}	728	}
457	}	729	}
458		730
		731	verbose 11, "$HOOKNAME[$htype] returning <$retval>"
		732	if $verbosity >= 11;
		733	}
		734
		735	if ($htype == 1) { # DESTROY
459	# clear package objects	736	# clear package objects
460	%$_ = () for values %{ $TERM->{_pkg} };	737	%$_ = () for values %{ $TERM->{_pkg} };
461		738
462	# clear package	739	# clear package
463	%$TERM = ();	740	%$TERM = ();
464	}	741	}
465		742
466	$retval	743	$retval
467	}	744	}
468		745
469	sub urxvt::term::proxy::AUTOLOAD {	746	sub SET_COLOR($$$) {
470	$urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/	747	SET_BGCOLOR (SET_FGCOLOR ($_[0], $_[1]), $_[2])
		748	}
		749
		750	sub rend2mask {
		751	no strict 'refs';
		752	my ($str, $mask) = (@_, 0);
		753	my %color = ( fg => undef, bg => undef );
		754	my @failed;
		755	for my $spec ( split /\s+/, $str ) {
		756	if ( $spec =~ /^([fb]g)[_:-]?(\d+)/i ) {
		757	$color{lc($1)} = $2;
		758	} else {
		759	my $neg = $spec =~ s/^[-^]//;
		760	unless ( exists &{"RS_$spec"} ) {
		761	push @failed, $spec;
		762	next;
		763	}
		764	my $cur = &{"RS_$spec"};
		765	if ( $neg ) {
		766	$mask &= ~$cur;
		767	} else {
		768	$mask |= $cur;
		769	}
		770	}
		771	}
		772	($mask, @color{qw(fg bg)}, \@failed)
		773	}
		774
		775	package urxvt::term::extension;
		776
		777	=head2 The C<urxvt::term::extension> class
		778
		779	Each extension attached to a terminal object is represented by
		780	a C<urxvt::term::extension> object.
		781
		782	You can use these objects, which are passed to all callbacks to store any
		783	state related to the terminal and extension instance.
		784
		785	The methods (And data members) documented below can be called on extension
		786	objects, in addition to call methods documented for the <urxvt::term>
		787	class.
		788
		789	=over 4
		790
		791	=item $urxvt_term = $self->{term}
		792
		793	Returns the C<urxvt::term> object associated with this instance of the
		794	extension. This member I<must not> be changed in any way.
		795
		796	=cut
		797
		798	our $AUTOLOAD;
		799
		800	sub AUTOLOAD {
		801	$AUTOLOAD =~ /:([^:]+)$/
471	or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";	802	or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
472		803
473	eval qq{	804	eval qq{
474	sub $urxvt::term::proxy::AUTOLOAD {	805	sub $AUTOLOAD {
475	my \$proxy = shift;	806	my \$proxy = shift;
476	\$proxy->{term}->$1 (\@_)	807	\$proxy->{term}->$1 (\@_)
477	}	808	}
478	1	809	1
479	} or die "FATAL: unable to compile method forwarder: $@";	810	} or die "FATAL: unable to compile method forwarder: $@";
480		811
481	goto &$urxvt::term::proxy::AUTOLOAD;	812	goto &$AUTOLOAD;
482	}	813	}
		814
		815	sub DESTROY {
		816	# nop
		817	}
		818
		819	# urxvt::destroy_hook (basically a cheap Guard:: implementation)
		820
		821	sub urxvt::destroy_hook::DESTROY {
		822	${$_[0]}->();
		823	}
		824
		825	sub urxvt::destroy_hook(&) {
		826	bless \shift, urxvt::destroy_hook::
		827	}
		828
		829	=item $self->enable ($hook_name => $cb[, $hook_name => $cb..])
		830
		831	Dynamically enable the given hooks (named without the C<on_> prefix) for
		832	this extension, replacing any previous hook. This is useful when you want
		833	to overwrite time-critical hooks only temporarily.
		834
		835	To install additional callbacks for the same hook, you can use the C<on>
		836	method of the C<urxvt::term> class.
		837
		838	=item $self->disable ($hook_name[, $hook_name..])
		839
		840	Dynamically disable the given hooks.
		841
		842	=cut
		843
		844	sub enable {
		845	my ($self, %hook) = @_;
		846	my $pkg = $self->{_pkg};
		847
		848	while (my ($name, $cb) = each %hook) {
		849	my $htype = $HOOKTYPE{uc $name};
		850	defined $htype
		851	or Carp::croak "unsupported hook type '$name'";
		852
		853	$self->set_should_invoke ($htype, +1)
		854	unless exists $self->{term}{_hook}[$htype]{$pkg};
		855
		856	$self->{term}{_hook}[$htype]{$pkg} = $cb;
		857	}
		858	}
		859
		860	sub disable {
		861	my ($self, @hook) = @_;
		862	my $pkg = $self->{_pkg};
		863
		864	for my $name (@hook) {
		865	my $htype = $HOOKTYPE{uc $name};
		866	defined $htype
		867	or Carp::croak "unsupported hook type '$name'";
		868
		869	$self->set_should_invoke ($htype, -1)
		870	if delete $self->{term}{_hook}[$htype]{$pkg};
		871	}
		872	}
		873
		874	=item $guard = $self->on ($hook_name => $cb[, $hook_name => $cb..])
		875
		876	Similar to the C<enable> enable, but installs additional callbacks for
		877	the given hook(s) (that is, it doesn't replace existing callbacks), and
		878	returns a guard object. When the guard object is destroyed the callbacks
		879	are disabled again.
		880
		881	=cut
		882
		883	sub urxvt::extension::on_disable::DESTROY {
		884	my $disable = shift;
		885
		886	my $term = delete $disable->{""};
		887
		888	while (my ($htype, $id) = each %$disable) {
		889	delete $term->{_hook}[$htype]{$id};
		890	$term->set_should_invoke ($htype, -1);
		891	}
		892	}
		893
		894	sub on {
		895	my ($self, %hook) = @_;
		896
		897	my $term = $self->{term};
		898
		899	my %disable = ( "" => $term );
		900
		901	while (my ($name, $cb) = each %hook) {
		902	my $htype = $HOOKTYPE{uc $name};
		903	defined $htype
		904	or Carp::croak "unsupported hook type '$name'";
		905
		906	$term->set_should_invoke ($htype, +1);
		907	$term->{_hook}[$htype]{ $disable{$htype} = $cb+0 }
		908	= sub { shift; $cb->($self, @_) }; # very ugly indeed
		909	}
		910
		911	bless \%disable, "urxvt::extension::on_disable"
		912	}
		913
		914	=item $self->x_resource ($pattern)
		915
		916	=item $self->x_resource_boolean ($pattern)
		917
		918	These methods support an additional C<%> prefix when called on an
		919	extension object - see the description of these methods in the
		920	C<urxvt::term> class for details.
		921
		922	=cut
		923
		924	sub x_resource {
		925	my ($self, $name) = @_;
		926	$name =~ s/^%(\.|$)/$_[0]{_name}$1/;
		927	$self->{term}->x_resource ($name)
		928	}
		929
		930	sub x_resource_boolean {
		931	my ($self, $name) = @_;
		932	$name =~ s/^%(\.|$)/$_[0]{_name}$1/;
		933	$self->{term}->x_resource_boolean ($name)
		934	}
		935
		936	=back
		937
		938	=cut
		939
		940	package urxvt::anyevent;
		941
		942	=head2 The C<urxvt::anyevent> Class
		943
		944	The sole purpose of this class is to deliver an interface to the
		945	C<AnyEvent> module - any module using it will work inside urxvt without
		946	further programming. The only exception is that you cannot wait on
		947	condition variables, but non-blocking condvar use is ok.
		948
		949	In practical terms this means is that you cannot use blocking APIs, but
		950	the non-blocking variant should work.
		951
		952	=cut
		953
		954	our $VERSION = '5.23';
		955
		956	$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
		957	push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
		958
		959	sub timer {
		960	my ($class, %arg) = @_;
		961
		962	my $cb = $arg{cb};
		963
		964	urxvt::timer
		965	->new
		966	->after ($arg{after}, $arg{interval})
		967	->cb ($arg{interval} ? $cb : sub {
		968	$_[0]->stop; # need to cancel manually
		969	$cb->();
		970	})
		971	}
		972
		973	sub io {
		974	my ($class, %arg) = @_;
		975
		976	my $cb = $arg{cb};
		977	my $fd = fileno $arg{fh};
		978	defined $fd or $fd = $arg{fh};
		979
		980	bless [$arg{fh}, urxvt::iow
		981	->new
		982	->fd ($fd)
		983	->events (($arg{poll} =~ /r/ ? 1 : 0)
		984	| ($arg{poll} =~ /w/ ? 2 : 0))
		985	->start
		986	->cb ($cb)
		987	], urxvt::anyevent::
		988	}
		989
		990	sub idle {
		991	my ($class, %arg) = @_;
		992
		993	my $cb = $arg{cb};
		994
		995	urxvt::iw
		996	->new
		997	->start
		998	->cb ($cb)
		999	}
		1000
		1001	sub child {
		1002	my ($class, %arg) = @_;
		1003
		1004	my $cb = $arg{cb};
		1005
		1006	urxvt::pw
		1007	->new
		1008	->start ($arg{pid})
		1009	->cb (sub {
		1010	$_[0]->stop; # need to cancel manually
		1011	$cb->($_[0]->rpid, $_[0]->rstatus);
		1012	})
		1013	}
		1014
		1015	sub DESTROY {
		1016	$_[0][1]->stop;
		1017	}
		1018
		1019	# only needed for AnyEvent < 6 compatibility
		1020	sub one_event {
		1021	Carp::croak "AnyEvent->one_event blocking wait unsupported in urxvt, use a non-blocking API";
		1022	}
		1023
		1024	package urxvt::term;
483		1025
484	=head2 The C<urxvt::term> Class	1026	=head2 The C<urxvt::term> Class
485		1027
486	=over 4	1028	=over 4
		1029
		1030	=cut
		1031
		1032	# find on_xxx subs in the package and register them
		1033	# as hooks
		1034	sub register_package {
		1035	my ($self, $pkg, $argv) = @_;
		1036
		1037	no strict 'refs';
		1038
		1039	urxvt::verbose 6, "register package $pkg to $self";
		1040
		1041	@{"$pkg\::ISA"} = urxvt::term::extension::;
		1042
		1043	my $proxy = bless {
		1044	_pkg => $pkg,
		1045	_name => ${"$pkg\::_NAME"}, # hackish
		1046	argv => $argv,
		1047	}, $pkg;
		1048	Scalar::Util::weaken ($proxy->{term} = $self);
		1049
		1050	$self->{_pkg}{$pkg} = $proxy;
		1051
		1052	for my $name (@HOOKNAME) {
		1053	if (my $ref = $pkg->can ("on_" . lc $name)) {
		1054	$proxy->enable ($name => $ref);
		1055	}
		1056	}
		1057	}
		1058
		1059	sub perl_libdirs {
		1060	map { split /:/ }
		1061	$_[0]->resource ("perl_lib"),
		1062	$ENV{URXVT_PERL_LIB},
		1063	"$ENV{HOME}/.urxvt/ext",
		1064	"$LIBDIR/perl"
		1065	}
		1066
		1067	sub scan_meta {
		1068	my ($self) = @_;
		1069	my @libdirs = perl_libdirs $self;
		1070
		1071	return if $self->{meta_libdirs} eq join "\x00", @libdirs;
		1072
		1073	my %meta;
		1074
		1075	$self->{meta_libdirs} = join "\x00", @libdirs;
		1076	$self->{meta} = \%meta;
		1077
		1078	for my $dir (reverse @libdirs) {
		1079	opendir my $fh, $dir
		1080	or next;
		1081	for my $ext (readdir $fh) {
		1082	$ext !~ /^\./
		1083	and open my $fh, "<", "$dir/$ext"
		1084	or next;
		1085
		1086	while (<$fh>) {
		1087	if (/^#:META:X_RESOURCE:(.*)/) {
		1088	my ($pattern, $type, $desc) = split /:/, $1;
		1089	$pattern =~ s/^%(\.|$)/$ext$1/g; # % in pattern == extension name
		1090	if ($pattern =~ /[^a-zA-Z0-9\-\.]/) {
		1091	warn "$dir/$ext: meta resource '$pattern' contains illegal characters (not alphanumeric nor . nor *)\n";
		1092	} else {
		1093	$meta{resource}{$pattern} = [$ext, $type, $desc];
		1094	}
		1095	} elsif (/^\s*(?:#|$)/) {
		1096	# skip other comments and empty lines
		1097	} else {
		1098	last; # stop parsing on first non-empty non-comment line
		1099	}
		1100	}
		1101	}
		1102	}
		1103	}
		1104
		1105	=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
		1106
		1107	Creates a new terminal, very similar as if you had started it with system
		1108	C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
		1109	hash which defines the environment of the new terminal.
		1110
		1111	Croaks (and probably outputs an error message) if the new instance
		1112	couldn't be created. Returns C<undef> if the new instance didn't
		1113	initialise perl, and the terminal object otherwise. The C<init> and
		1114	C<start> hooks will be called before this call returns, and are free to
		1115	refer to global data (which is race free).
		1116
		1117	=cut
		1118
		1119	sub new {
		1120	my ($class, $env, @args) = @_;
		1121
		1122	$env or Carp::croak "environment hash missing in call to urxvt::term->new";
		1123	@args or Carp::croak "name argument missing in call to urxvt::term->new";
		1124
		1125	_new ([ map "$_=$env->{$_}", keys %$env ], \@args);
		1126	}
		1127
		1128	=item $term->destroy
		1129
		1130	Destroy the terminal object (close the window, free resources
		1131	etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
		1132	watchers (timers, io watchers) are still active.
		1133
		1134	=item $term->exec_async ($cmd[, @args])
		1135
		1136	Works like the combination of the C<fork>/C<exec> builtins, which executes
		1137	("starts") programs in the background. This function takes care of setting
		1138	the user environment before exec'ing the command (e.g. C<PATH>) and should
		1139	be preferred over explicit calls to C<exec> or C<system>.
		1140
		1141	Returns the pid of the subprocess or C<undef> on error.
		1142
		1143	=cut
		1144
		1145	sub exec_async {
		1146	my $self = shift;
		1147
		1148	my $pid = fork;
		1149
		1150	return $pid
		1151	if !defined $pid or $pid;
		1152
		1153	%ENV = %{ $self->env };
		1154
		1155	exec @_;
		1156	urxvt::_exit 255;
		1157	}
		1158
		1159	=item $isset = $term->option ($optval[, $set])
		1160
		1161	Returns true if the option specified by C<$optval> is enabled, and
		1162	optionally change it. All option values are stored by name in the hash
		1163	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
		1164
		1165	Here is a likely non-exhaustive list of option names, please see the
		1166	source file F</src/optinc.h> to see the actual list:
		1167
		1168	borderLess buffered console cursorBlink cursorUnderline hold iconic
		1169	insecure intensityStyles iso14755 iso14755_52 jumpScroll loginShell
		1170	mapAlert meta8 mouseWheelScrollPage override_redirect pastableTabs
		1171	pointerBlank reverseVideo scrollBar scrollBar_floating scrollBar_right
		1172	scrollTtyKeypress scrollTtyOutput scrollWithBuffer secondaryScreen
		1173	secondaryScroll skipBuiltinGlyphs skipScroll transparent tripleclickwords
		1174	urgentOnBell utmpInhibit visualBell
487		1175
488	=item $value = $term->resource ($name[, $newval])	1176	=item $value = $term->resource ($name[, $newval])
489		1177
490	Returns the current resource value associated with a given name and	1178	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>	1179	optionally sets a new value. Setting values is most useful in the C<init>
…		…
500	likely change).	1188	likely change).
501		1189
502	Please note that resource strings will currently only be freed when the	1190	Please note that resource strings will currently only be freed when the
503	terminal is destroyed, so changing options frequently will eat memory.	1191	terminal is destroyed, so changing options frequently will eat memory.
504		1192
505	Here is a a likely non-exhaustive list of resource names, not all of which	1193	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	1194	are supported in every build, please see the source file F</src/rsinc.h>
507	list:	1195	to see the actual list:
508		1196
509	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont	1197	answerbackstring backgroundPixmap backspace_key blurradius
510	borderLess color cursorBlink cursorUnderline cutchars delete_key	1198	boldFont boldItalicFont borderLess buffered chdir color cursorBlink
511	display_name embed ext_bwidth fade font geometry hold iconName	1199	cursorUnderline cutchars delete_key depth display_name embed ext_bwidth
512	imFont imLocale inputMethod insecure int_bwidth intensityStyles	1200	fade font geometry hold iconName iconfile imFont imLocale inputMethod
		1201	insecure int_bwidth intensityStyles iso14755 iso14755_52 italicFont
513	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier	1202	jumpScroll letterSpace lineSpace loginShell mapAlert meta8 modifier
514	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2	1203	mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
515	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd	1204	perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
516	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating	1205	preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
517	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput	1206	scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
518	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle	1207	scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
519	shade term_name title transparent transparent_all tripleclickwords	1208	secondaryScreen secondaryScroll shade skipBuiltinGlyphs skipScroll
		1209	term_name title transient_for transparent tripleclickwords urgentOnBell
520	utmpInhibit visualBell	1210	utmpInhibit visualBell
521		1211
522	=cut	1212	=cut
523		1213
524	sub urxvt::term::resource($$;$) {	1214	sub resource($$;$) {
525	my ($self, $name) = (shift, shift);	1215	my ($self, $name) = (shift, shift);
526	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);	1216	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
527	goto &urxvt::term::_resource;	1217	goto &urxvt::term::_resource
528	}	1218	}
		1219
		1220	=item $value = $term->x_resource ($pattern)
		1221
		1222	Returns the X-Resource for the given pattern, excluding the program or
		1223	class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
		1224	same value as used by this instance of rxvt-unicode. Returns C<undef> if no
		1225	resource with that pattern exists.
		1226
		1227	Extensions that define extra resource or command line arguments also need
		1228	to call this method to access their values.
		1229
		1230	If the method is called on an extension object (basically, from an
		1231	extension), then the special prefix C<%.> will be replaced by the name of
		1232	the extension and a dot, and the lone string C<%> will be replaced by the
		1233	extension name itself. This makes it possible to code extensions so you
		1234	can rename them and get a new set of commandline switches and resources
		1235	without having to change the actual code.
		1236
		1237	This method should only be called during the C<on_start> hook, as there is
		1238	only one resource database per display, and later invocations might return
		1239	the wrong resources.
		1240
		1241	=item $value = $term->x_resource_boolean ($pattern)
		1242
		1243	Like C<x_resource>, above, but interprets the string value as a boolean
		1244	and returns C<1> for true values, C<0> for false values and C<undef> if
		1245	the resource or option isn't specified.
		1246
		1247	You should always use this method to parse boolean resources.
		1248
		1249	=cut
		1250
		1251	sub x_resource_boolean {
		1252	my $res = &x_resource;
		1253
		1254	$res =~ /^\s*(?:true|yes|on|1)\s*$/i ? 1 : defined $res && 0
		1255	}
		1256
		1257	=item $success = $term->parse_keysym ($key, $octets)
		1258
		1259	Adds a key binding exactly as specified via a resource. See the
		1260	C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
		1261
		1262	=item $term->register_command ($keysym, $modifiermask, $string)
		1263
		1264	Adds a key binding. This is a lower level api compared to
		1265	C<parse_keysym>, as it expects a parsed key description, and can be
		1266	used only inside either the C<on_init> hook, to add a binding, or the
		1267	C<on_register_command> hook, to modify a parsed binding.
529		1268
530	=item $rend = $term->rstyle ([$new_rstyle])	1269	=item $rend = $term->rstyle ([$new_rstyle])
531		1270
532	Return and optionally change the current rendition. Text that is output by	1271	Return and optionally change the current rendition. Text that is output by
533	the terminal application will use this style.	1272	the terminal application will use this style.
…		…
541		1280
542	=item ($row, $col) = $term->selection_beg ([$row, $col])	1281	=item ($row, $col) = $term->selection_beg ([$row, $col])
543		1282
544	=item ($row, $col) = $term->selection_end ([$row, $col])	1283	=item ($row, $col) = $term->selection_end ([$row, $col])
545		1284
546	Return the current values of the selection mark, begin or end positions,	1285	Return the current values of the selection mark, begin or end positions.
547	and optionally set them to new values.
548		1286
		1287	When arguments are given, then the selection coordinates are set to
		1288	C<$row> and C<$col>, and the selection screen is set to the current
		1289	screen.
		1290
		1291	=item $screen = $term->selection_screen ([$screen])
		1292
		1293	Returns the current selection screen, and then optionally sets it.
		1294
		1295	=item $term->selection_make ($eventtime[, $rectangular])
		1296
		1297	Tries to make a selection as set by C<selection_beg> and
		1298	C<selection_end>. If C<$rectangular> is true (default: false), a
		1299	rectangular selection will be made. This is the preferred function to make
		1300	a selection.
		1301
549	=item $success = $term->selection_grab ($eventtime)	1302	=item $success = $term->selection_grab ($eventtime[, $clipboard])
550		1303
551	Try to request the primary selection from the server (for example, as set	1304	Try to acquire ownership of the primary (clipboard if C<$clipboard> is
552	by the next method).	1305	true) selection from the server. The corresponding text can be set
		1306	with the next method. No visual feedback will be given. This function
		1307	is mostly useful from within C<on_sel_grab> hooks.
553		1308
554	=item $oldtext = $term->selection ([$newtext])	1309	=item $oldtext = $term->selection ([$newtext, $clipboard])
555		1310
556	Return the current selection text and optionally replace it by C<$newtext>.	1311	Return the current selection (clipboard if C<$clipboard> is true) text
		1312	and optionally replace it by C<$newtext>.
557		1313
		1314	=item $term->selection_clear ([$clipboard])
		1315
		1316	Revoke ownership of the primary (clipboard if C<$clipboard> is true) selection.
		1317
558	#=item $term->overlay ($x, $y, $text)	1318	=item $term->overlay_simple ($x, $y, $text)
559	#	1319
560	#Create a simple multi-line overlay box. See the next method for details.	1320	Create a simple multi-line overlay box. See the next method for details.
561	#	1321
562	#=cut	1322	=cut
563	#	1323
564	#sub urxvt::term::scr_overlay {	1324	sub overlay_simple {
565	# my ($self, $x, $y, $text) = @_;	1325	my ($self, $x, $y, $text) = @_;
566	#	1326
567	# my @lines = split /\n/, $text;	1327	my @lines = split /\n/, $text;
568	#	1328
569	# my $w = 0;	1329	my $w = List::Util::max map $self->strwidth ($_), @lines;
570	# for (map $self->strwidth ($_), @lines) {	1330
571	# $w = $_ if $w < $_;
572	# }
573	#
574	# $self->scr_overlay_new ($x, $y, $w, scalar @lines);	1331	my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
575	# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;	1332	$overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
576	#}	1333
		1334	$overlay
		1335	}
577		1336
578	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])	1337	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
579		1338
580	Create a new (empty) overlay at the given position with the given	1339	Create a new (empty) overlay at the given position with the given
581	width/height. C<$rstyle> defines the initial rendition style	1340	width/height. C<$rstyle> defines the initial rendition style
…		…
592		1351
593	The methods currently supported on C<urxvt::overlay> objects are:	1352	The methods currently supported on C<urxvt::overlay> objects are:
594		1353
595	=over 4	1354	=over 4
596		1355
597	=item $overlay->set ($x, $y, $text, $rend)	1356	=item $overlay->set ($x, $y, $text[, $rend])
598		1357
599	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts	1358	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts
600	text in rxvt-unicode's special encoding and an array of rendition values	1359	text in rxvt-unicode's special encoding and an array of rendition values
601	at a specific position inside the overlay.	1360	at a specific position inside the overlay.
602		1361
		1362	If C<$rend> is missing, then the rendition will not be changed.
		1363
603	=item $overlay->hide	1364	=item $overlay->hide
604		1365
605	If visible, hide the overlay, but do not destroy it.	1366	If visible, hide the overlay, but do not destroy it.
606		1367
607	=item $overlay->show	1368	=item $overlay->show
608		1369
609	If hidden, display the overlay again.	1370	If hidden, display the overlay again.
610		1371
611	=back	1372	=back
612		1373
		1374	=item $popup = $term->popup ($event)
		1375
		1376	Creates a new C<urxvt::popup> object that implements a popup menu. The
		1377	C<$event> I<must> be the event causing the menu to pop up (a button event,
		1378	currently).
		1379
		1380	=cut
		1381
		1382	sub popup {
		1383	my ($self, $event) = @_;
		1384
		1385	$self->grab ($event->{time}, 1)
		1386	or return;
		1387
		1388	my $popup = bless {
		1389	term => $self,
		1390	event => $event,
		1391	}, urxvt::popup::;
		1392
		1393	Scalar::Util::weaken $popup->{term};
		1394
		1395	$self->{_destroy}{$popup} = urxvt::destroy_hook { $popup->{popup}->destroy };
		1396	Scalar::Util::weaken $self->{_destroy}{$popup};
		1397
		1398	$popup
		1399	}
		1400
613	=item $cellwidth = $term->strwidth $string	1401	=item $cellwidth = $term->strwidth ($string)
614		1402
615	Returns the number of screen-cells this string would need. Correctly	1403	Returns the number of screen-cells this string would need. Correctly
616	accounts for wide and combining characters.	1404	accounts for wide and combining characters.
617		1405
618	=item $octets = $term->locale_encode $string	1406	=item $octets = $term->locale_encode ($string)
619		1407
620	Convert the given text string into the corresponding locale encoding.	1408	Convert the given text string into the corresponding locale encoding.
621		1409
622	=item $string = $term->locale_decode $octets	1410	=item $string = $term->locale_decode ($octets)
623		1411
624	Convert the given locale-encoded octets into a perl string.	1412	Convert the given locale-encoded octets into a perl string.
		1413
		1414	=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
		1415
		1416	XORs the rendition values in the given span with the provided value
		1417	(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
		1418	refresh hooks to provide effects similar to the selection.
		1419
		1420	=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
		1421
		1422	Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
		1423	whitespace will additionally be xored with the C<$rstyle2>, which defaults
		1424	to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
		1425	it instead. Both styles I<MUST NOT> contain font styles.
		1426
		1427	=item $term->scr_bell
		1428
		1429	Ring the bell!
625		1430
626	=item $term->scr_add_lines ($string)	1431	=item $term->scr_add_lines ($string)
627		1432
628	Write the given text string to the screen, as if output by the application	1433	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	1434	running inside the terminal. It may not contain command sequences (escape
…		…
632		1437
633	Normally its not a good idea to use this function, as programs might be	1438	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	1439	confused by changes in cursor position or scrolling. Its useful inside a
635	C<on_add_lines> hook, though.	1440	C<on_add_lines> hook, though.
636		1441
		1442	=item $term->scr_change_screen ($screen)
		1443
		1444	Switch to given screen - 0 primary, 1 secondary.
		1445
		1446	=item $term->cmd_parse ($octets)
		1447
		1448	Similar to C<scr_add_lines>, but the argument must be in the
		1449	locale-specific encoding of the terminal and can contain command sequences
		1450	(escape codes) that will be interpreted.
		1451
637	=item $term->tt_write ($octets)	1452	=item $term->tt_write ($octets)
638		1453
639	Write the octets given in C<$data> to the tty (i.e. as program input). To	1454	Write the octets given in C<$octets> to the tty (i.e. as program input). To
640	pass characters instead of octets, you should convert your strings first	1455	pass characters instead of octets, you should convert your strings first
641	to the locale-specific encoding using C<< $term->locale_encode >>.	1456	to the locale-specific encoding using C<< $term->locale_encode >>.
642		1457
		1458	=item $term->tt_paste ($octets)
		1459
		1460	Write the octets given in C<$octets> to the tty as a paste, converting NL to
		1461	CR and bracketing the data with control sequences if bracketed paste mode
		1462	is set.
		1463
		1464	=item $old_events = $term->pty_ev_events ([$new_events])
		1465
		1466	Replaces the event mask of the pty watcher by the given event mask. Can
		1467	be used to suppress input and output handling to the pty/tty. See the
		1468	description of C<< urxvt::timer->events >>. Make sure to always restore
		1469	the previous value.
		1470
		1471	=item $fd = $term->pty_fd
		1472
		1473	Returns the master file descriptor for the pty in use, or C<-1> if no pty
		1474	is used.
		1475
		1476	=item $windowid = $term->parent
		1477
		1478	Return the window id of the toplevel window.
		1479
		1480	=item $windowid = $term->vt
		1481
		1482	Return the window id of the terminal window.
		1483
		1484	=item $term->vt_emask_add ($x_event_mask)
		1485
		1486	Adds the specified events to the vt event mask. Useful e.g. when you want
		1487	to receive pointer events all the times:
		1488
		1489	$term->vt_emask_add (urxvt::PointerMotionMask);
		1490
		1491	=item $term->set_urgency ($set)
		1492
		1493	Enable/disable the urgency hint on the toplevel window.
		1494
		1495	=item $term->focus_in
		1496
		1497	=item $term->focus_out
		1498
		1499	=item $term->key_press ($state, $keycode[, $time])
		1500
		1501	=item $term->key_release ($state, $keycode[, $time])
		1502
		1503	Deliver various fake events to to terminal.
		1504
643	=item $window_width = $term->width	1505	=item $window_width = $term->width
644		1506
645	=item $window_height = $term->height	1507	=item $window_height = $term->height
646		1508
647	=item $font_width = $term->fwidth	1509	=item $font_width = $term->fwidth
…		…
660		1522
661	=item $max_scrollback = $term->saveLines	1523	=item $max_scrollback = $term->saveLines
662		1524
663	=item $nrow_plus_saveLines = $term->total_rows	1525	=item $nrow_plus_saveLines = $term->total_rows
664		1526
665	=item $lines_in_scrollback = $term->nsaved	1527	=item $topmost_scrollback_row = $term->top_row
666		1528
667	Return various integers describing terminal characteristics.	1529	Return various integers describing terminal characteristics.
668		1530
		1531	=item $x_display = $term->display_id
		1532
		1533	Return the DISPLAY used by rxvt-unicode.
		1534
		1535	=item $lc_ctype = $term->locale
		1536
		1537	Returns the LC_CTYPE category string used by this rxvt-unicode.
		1538
		1539	=item $env = $term->env
		1540
		1541	Returns a copy of the environment in effect for the terminal as a hashref
		1542	similar to C<\%ENV>.
		1543
		1544	=item @envv = $term->envv
		1545
		1546	Returns the environment as array of strings of the form C<VAR=VALUE>.
		1547
		1548	=item @argv = $term->argv
		1549
		1550	Return the argument vector as this terminal, similar to @ARGV, but
		1551	includes the program name as first element.
		1552
		1553	=cut
		1554
		1555	sub env {
		1556	+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), $_[0]->envv }
		1557	}
		1558
		1559	=item $modifiermask = $term->ModLevel3Mask
		1560
		1561	=item $modifiermask = $term->ModMetaMask
		1562
		1563	=item $modifiermask = $term->ModNumLockMask
		1564
		1565	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
		1566	AltGr), the meta key (often Alt) and the num lock key, if applicable.
		1567
		1568	=item $screen = $term->current_screen
		1569
		1570	Returns the currently displayed screen (0 primary, 1 secondary).
		1571
		1572	=item $cursor_is_hidden = $term->hidden_cursor
		1573
		1574	Returns whether the cursor is currently hidden or not.
		1575
669	=item $view_start = $term->view_start ([$newvalue])	1576	=item $view_start = $term->view_start ([$newvalue])
670		1577
671	Returns the negative row number of the topmost line. Minimum value is	1578	Returns the row number of the topmost displayed line. Maximum value is
672	C<0>, which displays the normal terminal contents. Larger values scroll	1579	C<0>, which displays the normal terminal contents. Lower values scroll
673	this many lines into the scrollback buffer.	1580	this many lines into the scrollback buffer.
674		1581
675	=item $term->want_refresh	1582	=item $term->want_refresh
676		1583
677	Requests a screen refresh. At the next opportunity, rxvt-unicode will	1584	Requests a screen refresh. At the next opportunity, rxvt-unicode will
…		…
680		1587
681	Used after changing terminal contents to display them.	1588	Used after changing terminal contents to display them.
682		1589
683	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])	1590	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
684		1591
685	Returns the text of the entire row with number C<$row_number>. Row C<0>	1592	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	1593	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	1594	terminal line. Nothing will be returned if a nonexistent line
689	is requested.	1595	is requested.
690		1596
691	If C<$new_text> is specified, it will replace characters in the current	1597	If C<$new_text> is specified, it will replace characters in the current
692	line, starting at column C<$start_col> (default C<0>), which is useful	1598	line, starting at column C<$start_col> (default C<0>), which is useful
693	to replace only parts of a line. The font index in the rendition will	1599	to replace only parts of a line. The font index in the rendition will
694	automatically be updated.	1600	automatically be updated.
695		1601
696	C<$text> is in a special encoding: tabs and wide characters that use more	1602	C<$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	1603	than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
698	(C<chr 65535>). Characters with combining characters and other characters	1604	characters. Characters with combining characters and other characters that
699	that do not fit into the normal tetx encoding will be replaced with	1605	do not fit into the normal text encoding will be replaced with characters
700	characters in the private use area.	1606	in the private use area.
701		1607
702	You have to obey this encoding when changing text. The advantage is	1608	You have to obey this encoding when changing text. The advantage is
703	that C<substr> and similar functions work on screen cells and not on	1609	that C<substr> and similar functions work on screen cells and not on
704	characters.	1610	characters.
705		1611
…		…
735	about the logical line that row C<$row_number> is part of. It supports the	1641	about the logical line that row C<$row_number> is part of. It supports the
736	following methods:	1642	following methods:
737		1643
738	=over 4	1644	=over 4
739		1645
740	=item $text = $line->t	1646	=item $text = $line->t ([$new_text])
741		1647
742	Returns the full text of the line, similar to C<ROW_t>	1648	Returns or replaces the full text of the line, similar to C<ROW_t>
743		1649
744	=item $rend = $line->r	1650	=item $rend = $line->r ([$new_rend])
745		1651
746	Returns the full rendition array of the line, similar to C<ROW_r>	1652	Returns or replaces the full rendition array of the line, similar to C<ROW_r>
747		1653
748	=item $length = $line->l	1654	=item $length = $line->l
749		1655
750	Returns the length of the line in cells, similar to C<ROW_l>.	1656	Returns the length of the line in cells, similar to C<ROW_l>.
751		1657
…		…
756	Return the row number of the first/last row of the line, respectively.	1662	Return the row number of the first/last row of the line, respectively.
757		1663
758	=item $offset = $line->offset_of ($row, $col)	1664	=item $offset = $line->offset_of ($row, $col)
759		1665
760	Returns the character offset of the given row|col pair within the logical	1666	Returns the character offset of the given row|col pair within the logical
761	line.	1667	line. Works for rows outside the line, too, and returns corresponding
		1668	offsets outside the string.
762		1669
763	=item ($row, $col) = $line->coord_of ($offset)	1670	=item ($row, $col) = $line->coord_of ($offset)
764		1671
765	Translates a string offset into terminal coordinates again.	1672	Translates a string offset into terminal coordinates again.
766		1673
767	=back	1674	=back
768		1675
769	=cut	1676	=cut
770		1677
771	sub urxvt::term::line {	1678	sub line {
772	my ($self, $row) = @_;	1679	my ($self, $row) = @_;
773		1680
774	my $maxrow = $self->nrow - 1;	1681	my $maxrow = $self->nrow - 1;
775		1682
776	my ($beg, $end) = ($row, $row);	1683	my ($beg, $end) = ($row, $row);
…		…
840	$offset / $self->{ncol} + $self->{beg},	1747	$offset / $self->{ncol} + $self->{beg},
841	$offset % $self->{ncol}	1748	$offset % $self->{ncol}
842	)	1749	)
843	}	1750	}
844		1751
845	=item ($row, $col) = $line->coord_of ($offset)
846	=item $text = $term->special_encode $string	1752	=item $text = $term->special_encode $string
847		1753
848	Converts a perl string into the special encoding used by rxvt-unicode,	1754	Converts a perl string into the special encoding used by rxvt-unicode,
849	where one character corresponds to one screen cell. See	1755	where one character corresponds to one screen cell. See
850	C<< $term->ROW_t >> for details.	1756	C<< $term->ROW_t >> for details.
851		1757
852	=item $string = $term->special_decode $text	1758	=item $string = $term->special_decode $text
853		1759
854	Converts rxvt-unicodes text reprsentation into a perl string. See	1760	Converts rxvt-unicodes text representation into a perl string. See
855	C<< $term->ROW_t >> for details.	1761	C<< $term->ROW_t >> for details.
856		1762
		1763	=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
		1764
		1765	=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
		1766
		1767	Register/unregister a synchronous button grab. See the XGrabButton
		1768	manpage.
		1769
		1770	=item $success = $term->grab ($eventtime[, $sync])
		1771
		1772	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
		1773	synchronous (C<$sync> is true). Also remembers the grab timestamp.
		1774
		1775	=item $term->allow_events_async
		1776
		1777	Calls XAllowEvents with AsyncBoth for the most recent grab.
		1778
		1779	=item $term->allow_events_sync
		1780
		1781	Calls XAllowEvents with SyncBoth for the most recent grab.
		1782
		1783	=item $term->allow_events_replay
		1784
		1785	Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
		1786	recent grab.
		1787
		1788	=item $term->ungrab
		1789
		1790	Calls XUngrabPointer and XUngrabKeyboard for the most recent grab. Is called automatically on
		1791	evaluation errors, as it is better to lose the grab in the error case as
		1792	the session.
		1793
		1794	=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
		1795
		1796	=item $atom_name = $term->XGetAtomName ($atom)
		1797
		1798	=item @atoms = $term->XListProperties ($window)
		1799
		1800	=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
		1801
		1802	=item $term->XChangeProperty ($window, $property, $type, $format, $octets)
		1803
		1804	=item $term->XDeleteProperty ($window, $property)
		1805
		1806	=item $window = $term->DefaultRootWindow
		1807
		1808	=item $term->XReparentWindow ($window, $parent, [$x, $y])
		1809
		1810	=item $term->XMapWindow ($window)
		1811
		1812	=item $term->XUnmapWindow ($window)
		1813
		1814	=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
		1815
		1816	=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
		1817
		1818	=item $term->XChangeInput ($window, $add_events[, $del_events])
		1819
		1820	=item $keysym = $term->XStringToKeysym ($string)
		1821
		1822	=item $string = $term->XKeysymToString ($keysym)
		1823
		1824	Various X or X-related functions. The C<$term> object only serves as
		1825	the source of the display, otherwise those functions map more-or-less
		1826	directly onto the X functions of the same name.
		1827
857	=back	1828	=back
		1829
		1830	=cut
		1831
		1832	package urxvt::popup;
		1833
		1834	=head2 The C<urxvt::popup> Class
		1835
		1836	=over 4
		1837
		1838	=cut
		1839
		1840	sub add_item {
		1841	my ($self, $item) = @_;
		1842
		1843	$item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal};
		1844	$item->{rend}{hover} = "\x1b[0;30;46m" unless exists $item->{rend}{hover};
		1845	$item->{rend}{active} = "\x1b[m" unless exists $item->{rend}{active};
		1846
		1847	$item->{render} ||= sub { $_[0]{text} };
		1848
		1849	push @{ $self->{item} }, $item;
		1850	}
		1851
		1852	=item $popup->add_title ($title)
		1853
		1854	Adds a non-clickable title to the popup.
		1855
		1856	=cut
		1857
		1858	sub add_title {
		1859	my ($self, $title) = @_;
		1860
		1861	$self->add_item ({
		1862	rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
		1863	text => $title,
		1864	activate => sub { },
		1865	});
		1866	}
		1867
		1868	=item $popup->add_separator ([$sepchr])
		1869
		1870	Creates a separator, optionally using the character given as C<$sepchr>.
		1871
		1872	=cut
		1873
		1874	sub add_separator {
		1875	my ($self, $sep) = @_;
		1876
		1877	$sep ||= "=";
		1878
		1879	$self->add_item ({
		1880	rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
		1881	text => "",
		1882	render => sub { $sep x $self->{term}->ncol },
		1883	activate => sub { },
		1884	});
		1885	}
		1886
		1887	=item $popup->add_button ($text, $cb)
		1888
		1889	Adds a clickable button to the popup. C<$cb> is called whenever it is
		1890	selected.
		1891
		1892	=cut
		1893
		1894	sub add_button {
		1895	my ($self, $text, $cb) = @_;
		1896
		1897	$self->add_item ({ type => "button", text => $text, activate => $cb});
		1898	}
		1899
		1900	=item $popup->add_toggle ($text, $initial_value, $cb)
		1901
		1902	Adds a toggle/checkbox item to the popup. The callback gets called
		1903	whenever it gets toggled, with a boolean indicating its new value as its
		1904	first argument.
		1905
		1906	=cut
		1907
		1908	sub add_toggle {
		1909	my ($self, $text, $value, $cb) = @_;
		1910
		1911	my $item; $item = {
		1912	type => "button",
		1913	text => " $text",
		1914	value => $value,
		1915	render => sub { ($_[0]{value} ? "* " : " ") . $text },
		1916	activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
		1917	};
		1918
		1919	$self->add_item ($item);
		1920	}
		1921
		1922	=item $popup->show
		1923
		1924	Displays the popup (which is initially hidden).
		1925
		1926	=cut
		1927
		1928	sub show {
		1929	my ($self) = @_;
		1930
		1931	local $urxvt::popup::self = $self;
		1932
		1933	my $env = $self->{term}->env;
		1934	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
		1935	delete $env->{LC_ALL};
		1936	$env->{LC_CTYPE} = $self->{term}->locale;
		1937
		1938	my $term = urxvt::term->new (
		1939	$env, "popup",
		1940	"--perl-lib" => "", "--perl-ext-common" => "",
		1941	"-pty-fd" => -1, "-sl" => 0,
		1942	"-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
		1943	"--transient-for" => $self->{term}->parent,
		1944	"-display" => $self->{term}->display_id,
		1945	"-pe" => "urxvt-popup",
		1946	) or die "unable to create popup window\n";
		1947
		1948	unless (delete $term->{urxvt_popup_init_done}) {
		1949	$term->ungrab;
		1950	$term->destroy;
		1951	die "unable to initialise popup window\n";
		1952	}
		1953	}
		1954
		1955	sub DESTROY {
		1956	my ($self) = @_;
		1957
		1958	delete $self->{term}{_destroy}{$self};
		1959	$self->{term}->ungrab;
		1960	}
		1961
		1962	=back
		1963
		1964	=cut
		1965
		1966	package urxvt::watcher;
858		1967
859	=head2 The C<urxvt::timer> Class	1968	=head2 The C<urxvt::timer> Class
860		1969
861	This class implements timer watchers/events. Time is represented as a	1970	This class implements timer watchers/events. Time is represented as a
862	fractional number of seconds since the epoch. Example:	1971	fractional number of seconds since the epoch. Example:
…		…
866	->new	1975	->new
867	->interval (1)	1976	->interval (1)
868	->cb (sub {	1977	->cb (sub {
869	$term->{overlay}->set (0, 0,	1978	$term->{overlay}->set (0, 0,
870	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);	1979	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
871	});	1980	});
872		1981
873	=over 4	1982	=over 4
874		1983
875	=item $timer = new urxvt::timer	1984	=item $timer = new urxvt::timer
876		1985
…		…
879		1988
880	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })	1989	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })
881		1990
882	Set the callback to be called when the timer triggers.	1991	Set the callback to be called when the timer triggers.
883		1992
884	=item $tstamp = $timer->at
885
886	Return the time this watcher will fire next.
887
888	=item $timer = $timer->set ($tstamp)	1993	=item $timer = $timer->set ($tstamp[, $interval])
889		1994
890	Set the time the event is generated to $tstamp.	1995	Set the time the event is generated to $tstamp (and optionally specifies a
		1996	new $interval).
891		1997
892	=item $timer = $timer->interval ($interval)	1998	=item $timer = $timer->interval ($interval)
893		1999
894	Normally (and when C<$interval> is C<0>), the timer will automatically	2000	By default (and when C<$interval> is C<0>), the timer will automatically
895	stop after it has fired once. If C<$interval> is non-zero, then the timer	2001	stop after it has fired once. If C<$interval> is non-zero, then the timer
896	is automatically rescheduled at the given intervals.	2002	is automatically rescheduled at the given intervals.
897		2003
898	=item $timer = $timer->start	2004	=item $timer = $timer->start
899		2005
900	Start the timer.	2006	Start the timer.
901		2007
902	=item $timer = $timer->start ($tstamp)	2008	=item $timer = $timer->start ($tstamp[, $interval])
903		2009
904	Set the event trigger time to C<$tstamp> and start the timer.	2010	Set the event trigger time to C<$tstamp> and start the timer. Optionally
		2011	also replaces the interval.
		2012
		2013	=item $timer = $timer->after ($delay[, $interval])
		2014
		2015	Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
905		2016
906	=item $timer = $timer->stop	2017	=item $timer = $timer->stop
907		2018
908	Stop the timer.	2019	Stop the timer.
909		2020
…		…
915		2026
916	$term->{socket} = ...	2027	$term->{socket} = ...
917	$term->{iow} = urxvt::iow	2028	$term->{iow} = urxvt::iow
918	->new	2029	->new
919	->fd (fileno $term->{socket})	2030	->fd (fileno $term->{socket})
920	->events (1) # wait for read data	2031	->events (urxvt::EV_READ)
921	->start	2032	->start
922	->cb (sub {	2033	->cb (sub {
923	my ($iow, $revents) = @_;	2034	my ($iow, $revents) = @_;
924	# $revents must be 1 here, no need to check	2035	# $revents must be 1 here, no need to check
925	sysread $term->{socket}, my $buf, 8192	2036	sysread $term->{socket}, my $buf, 8192
…		…
938	Set the callback to be called when io events are triggered. C<$reventmask>	2049	Set the callback to be called when io events are triggered. C<$reventmask>
939	is a bitset as described in the C<events> method.	2050	is a bitset as described in the C<events> method.
940		2051
941	=item $iow = $iow->fd ($fd)	2052	=item $iow = $iow->fd ($fd)
942		2053
943	Set the filedescriptor (not handle) to watch.	2054	Set the file descriptor (not handle) to watch.
944		2055
945	=item $iow = $iow->events ($eventmask)	2056	=item $iow = $iow->events ($eventmask)
946		2057
947	Set the event mask to watch. Bit #0 (value C<1>) enables watching for read	2058	Set the event mask to watch. The only allowed values are
948	data, Bit #1 (value C<2>) enables watching for write data.	2059	C<urxvt::EV_READ> and C<urxvt::EV_WRITE>, which might be ORed
		2060	together, or C<urxvt::EV_NONE>.
949		2061
950	=item $iow = $iow->start	2062	=item $iow = $iow->start
951		2063
952	Start watching for requested events on the given handle.	2064	Start watching for requested events on the given handle.
953		2065
954	=item $iow = $iow->stop	2066	=item $iow = $iow->stop
955		2067
956	Stop watching for events on the given filehandle.	2068	Stop watching for events on the given file handle.
		2069
		2070	=back
		2071
		2072	=head2 The C<urxvt::iw> Class
		2073
		2074	This class implements idle watchers, that get called automatically when
		2075	the process is idle. They should return as fast as possible, after doing
		2076	some useful work.
		2077
		2078	=over 4
		2079
		2080	=item $iw = new urxvt::iw
		2081
		2082	Create a new idle watcher object in stopped state.
		2083
		2084	=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
		2085
		2086	Set the callback to be called when the watcher triggers.
		2087
		2088	=item $timer = $timer->start
		2089
		2090	Start the watcher.
		2091
		2092	=item $timer = $timer->stop
		2093
		2094	Stop the watcher.
		2095
		2096	=back
		2097
		2098	=head2 The C<urxvt::pw> Class
		2099
		2100	This class implements process watchers. They create an event whenever a
		2101	process exits, after which they stop automatically.
		2102
		2103	my $pid = fork;
		2104	...
		2105	$term->{pw} = urxvt::pw
		2106	->new
		2107	->start ($pid)
		2108	->cb (sub {
		2109	my ($pw, $exit_status) = @_;
		2110	...
		2111	});
		2112
		2113	=over 4
		2114
		2115	=item $pw = new urxvt::pw
		2116
		2117	Create a new process watcher in stopped state.
		2118
		2119	=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
		2120
		2121	Set the callback to be called when the timer triggers.
		2122
		2123	=item $pw = $timer->start ($pid)
		2124
		2125	Tells the watcher to start watching for process C<$pid>.
		2126
		2127	=item $pw = $pw->stop
		2128
		2129	Stop the watcher.
957		2130
958	=back	2131	=back
959		2132
960	=head1 ENVIRONMENT	2133	=head1 ENVIRONMENT
961		2134
…		…
964	This variable controls the verbosity level of the perl extension. Higher	2137	This variable controls the verbosity level of the perl extension. Higher
965	numbers indicate more verbose output.	2138	numbers indicate more verbose output.
966		2139
967	=over 4	2140	=over 4
968		2141
969	=item =0 - only fatal messages	2142	=item == 0 - fatal messages
970		2143
971	=item =3 - script loading and management	2144	=item >= 3 - script loading and management
972		2145
973	=item =10 - all events received	2146	=item >=10 - all called hooks
		2147
		2148	=item >=11 - hook return values
974		2149
975	=back	2150	=back
976		2151
977	=head1 AUTHOR	2152	=head1 AUTHOR
978		2153
979	Marc Lehmann <pcg@goof.com>	2154	Marc Lehmann <schmorp@schmorp.de>
980	http://software.schmorp.de/pkg/rxvt-unicode	2155	http://software.schmorp.de/pkg/rxvt-unicode
981		2156
982	=cut	2157	=cut
983		2158
984	1	2159	1
		2160
		2161	# vim: sw=3:

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