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Revision 1.108 by root, Thu Jan 19 09:47:15 2006 UTC vs.
Revision 1.222 by root, Sat Jul 7 07:00:17 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, extension scripts specified via	22	Every time a terminal object gets created, extension scripts specified via
23	the C<perl> resource are loaded and associated with it.	23	the C<perl> resource are loaded and associated with it.
24		24
25	Scripts are compiled in a 'use strict' and 'use utf8' environment, and	25	Scripts are compiled in a 'use strict "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	You can disable the embedded perl interpreter by setting both "perl-ext"
		32	and "perl-ext-common" resources to the empty string.
		33
31	=head1 PREPACKAGED EXTENSIONS	34	=head1 PREPACKAGED EXTENSIONS
32		35
33	This section describes the extensions delivered with this release. You can	36	A number of extensions are delivered with this release. You can find them
34	find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.	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 (enabled by default)	46	URxvt.perl-ext-common: default,selection-autotransform
43		47
44	(More) intelligent selection. This extension tries to be more intelligent	48	Extensions that add command line parameters or resources on their own are
45	when the user extends selections (double-click and further clicks). Right	49	loaded automatically when used.
46	now, it tries to select words, urls and complete shell-quoted
47	arguments, which is very convenient, too, if your F<ls> supports
48	C<--quoting-style=shell>.
49
50	A double-click usually selects the word under the cursor, further clicks
51	will enlarge the selection.
52
53	The selection works by trying to match a number of regexes and displaying
54	them in increasing order of length. You can add your own regexes by
55	specifying resources of the form:
56
57	URxvt.selection.pattern-0: perl-regex
58	URxvt.selection.pattern-1: perl-regex
59	...
60
61	The index number (0, 1...) must not have any holes, and each regex must
62	contain at least one pair of capturing parentheses, which will be used for
63	the match. For example, the followign adds a regex that matches everything
64	between two vertical bars:
65
66	URxvt.selection.pattern-0: \\|([^|]+)\\|
67
68	You can look at the source of the selection extension to see more
69	interesting uses, such as parsing a line from beginning to end.
70
71	This extension also offers following bindable keyboard commands:
72
73	=over 4
74
75	=item rot13
76
77	Rot-13 the selection when activated. Used via keyboard trigger:
78
79	URxvt.keysym.C-M-r: perl:selection:rot13
80
81	=back
82
83	=item option-popup (enabled by default)
84
85	Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at
86	runtime.
87
88	=item selection-popup (enabled by default)
89
90	Binds a popup menu to Ctrl-Button3 that lets you convert the selection
91	text into various other formats/action (such as uri unescaping, perl
92	evalution, web-browser starting etc.), depending on content.
93
94	Other extensions can extend this popup menu by pushing a code reference onto
95	C<@urxvt::ext::selection_popup::hook>, that is called whenever the popup is displayed.
96
97	It's sole argument is the popup menu, which can be modified. The selection
98	is in C<$_>, which can be used to decide wether to add something or not.
99	It should either return nothing or a string and a code reference. The
100	string will be used as button text and the code reference will be called
101	when the button gets activated and should transform C<$_>.
102
103	The following will add an entry C<a to b> that transforms all C<a>s in
104	the selection to C<b>s, but only if the selection currently contains any
105	C<a>s:
106
107	push urxvt::ext::selection_popup::hook, sub {
108	/a/ ? ("a to be" => sub { s/a/b/g }
109	: ()
110	};
111
112	=item searchable-scrollback<hotkey> (enabled by default)
113
114	Adds regex search functionality to the scrollback buffer, triggered
115	by a hotkey (default: C<M-s>). While in search mode, normal terminal
116	input/output is suspended and a regex is displayed at the bottom of the
117	screen.
118
119	Inputting characters appends them to the regex and continues incremental
120	search. C<BackSpace> removes a character from the regex, C<Up> and C<Down>
121	search upwards/downwards in the scrollback buffer, C<End> jumps to the
122	bottom. C<Escape> leaves search mode and returns to the point where search
123	was started, while C<Enter> or C<Return> stay at the current position and
124	additionally stores the first match in the current line into the primary
125	selection.
126
127	=item selection-autotransform
128
129	This selection allows you to do automatic transforms on a selection
130	whenever a selection is made.
131
132	It works by specifying perl snippets (most useful is a single C<s///>
133	operator) that modify C<$_> as resources:
134
135	URxvt.selection-autotransform.0: transform
136	URxvt.selection-autotransform.1: transform
137	...
138
139	For example, the following will transform selections of the form
140	C<filename:number>, often seen in compiler messages, into C<vi +$filename
141	$word>:
142
143	URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
144
145	And this example matches the same,but replaces it with vi-commands you can
146	paste directly into your (vi :) editor:
147
148	URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
149
150	Of course, this can be modified to suit your needs and your editor :)
151
152	To expand the example above to typical perl error messages ("XXX at
153	FILENAME line YYY."), you need a slightly more elaborate solution:
154
155	URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
156	URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
157
158	The first line tells the selection code to treat the unchanging part of
159	every error message as a selection pattern, and the second line transforms
160	the message into vi commands to load the file.
161
162	=item mark-urls
163
164	Uses per-line display filtering (C<on_line_update>) to underline urls and
165	make them clickable. When middle-clicked, the program specified in the
166	resource C<urlLauncher> (default C<x-www-browser>) will be started with
167	the URL as first argument.
168
169	=item automove-background
170
171	This is basically a one-line extension that dynamically changes the background pixmap offset
172	to the window position, in effect creating the same effect as pseudo transparency with
173	a custom pixmap. No scaling is supported in this mode. Exmaple:
174
175	@@RXVT_NAME@@ -pixmap background.xpm -pe automove-background
176
177	=item block-graphics-to-ascii
178
179	A not very useful example of filtering all text output to the terminal,
180	by replacing all line-drawing characters (U+2500 .. U+259F) by a
181	similar-looking ascii character.
182
183	=item digital-clock
184
185	Displays a digital clock using the built-in overlay.
186
187	=item example-refresh-hooks
188
189	Displays a very simple digital clock in the upper right corner of the
190	window. Illustrates overwriting the refresh callbacks to create your own
191	overlays or changes.
192
193	=item selection-pastebin
194
195	This is a little rarely useful extension that Uploads the selection as
196	textfile to a remote site (or does other things). (The implementation is
197	not currently secure for use in a multiuser environment as it writes to
198	F</tmp> directly.).
199
200	It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
201	i.e.
202
203	URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
204
205	Pressing this combination runs a command with C<%> replaced by the name of
206	the textfile. This command can be set via a resource:
207
208	URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
209
210	And the default is likely not useful to anybody but the few people around
211	here :)
212
213	The name of the textfile is the hex encoded md5 sum of the selection, so
214	the same content should lead to the same filename.
215
216	After a successful upload the selection will be replaced by the text given
217	in the C<selection-pastebin-url> resource (again, the % is the placeholder
218	for the filename):
219
220	URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
221
222	=back
223		50
224	=head1 API DOCUMENTATION	51	=head1 API DOCUMENTATION
225		52
226	=head2 General API Considerations	53	=head2 General API Considerations
227		54
…		…
241		68
242	=over 4	69	=over 4
243		70
244	=item $text	71	=item $text
245		72
246	Rxvt-unicodes special way of encoding text, where one "unicode" character	73	Rxvt-unicode's special way of encoding text, where one "unicode" character
247	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.
248		75
249	=item $string	76	=item $string
250		77
251	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
…		…
255	=item $octets	82	=item $octets
256		83
257	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
258	locale-specific way.	85	locale-specific way.
259		86
		87	=item $keysym
		88
		89	an integer that is a valid X11 keysym code. You can convert a string
		90	into a keysym and viceversa by using C<XStringToKeysym> and
		91	C<XKeysymToString>.
		92
260	=back	93	=back
261		94
262	=head2 Extension Objects	95	=head2 Extension Objects
263		96
264	Very perl extension is a perl class. A separate perl object is created	97	Every perl extension is a perl class. A separate perl object is created
265	for each terminal and each extension and passed as the first parameter to	98	for each terminal, and each terminal has its own set of extension objects,
266	hooks. So extensions can use their C<$self> object without having to think	99	which are passed as the first parameter to hooks. So extensions can use
267	about other extensions, with the exception of methods and members that	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
268	begin with an underscore character C<_>: these are reserved for internal	102	that begin with an underscore character C<_>: these are reserved for
269	use.	103	internal use.
270		104
271	Although it isn't a C<urxvt::term> object, you can call all methods of the	105	Although it isn't a C<urxvt::term> object, you can call all methods of the
272	C<urxvt::term> class on this object.	106	C<urxvt::term> class on this object.
273		107
274	It has the following methods and data members:	108	Additional methods only supported for extension objects are described in
275		109	the C<urxvt::extension> section below.
276	=over 4
277
278	=item $urxvt_term = $self->{term}
279
280	Returns the C<urxvt::term> object associated with this instance of the
281	extension. This member I<must not> be changed in any way.
282
283	=item $self->enable ($hook_name => $cb, [$hook_name => $cb..])
284
285	Dynamically enable the given hooks (named without the C<on_> prefix) for
286	this extension, replacing any previous hook. This is useful when you want
287	to overwrite time-critical hooks only temporarily.
288
289	=item $self->disable ($hook_name[, $hook_name..])
290
291	Dynamically disable the given hooks.
292
293	=back
294		110
295	=head2 Hooks	111	=head2 Hooks
296		112
297	The following subroutines can be declared in extension files, and will be	113	The following subroutines can be declared in extension files, and will be
298	called whenever the relevant event happens.	114	called whenever the relevant event happens.
299		115
300	The first argument passed to them is an extension oject as described in	116	The first argument passed to them is an extension object as described in
301	the in the C<Extension Objects> section.	117	the in the C<Extension Objects> section.
302		118
303	B<All> of these hooks must return a boolean value. If it is true, then the	119	B<All> of these hooks must return a boolean value. If any of the called
304	event counts as being I<consumed>, and the invocation of other hooks is	120	hooks returns true, then the event counts as being I<consumed>, and the
305	skipped, 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.
306		122
307	I<< When in doubt, return a false value (preferably C<()>). >>	123	I<< When in doubt, return a false value (preferably C<()>). >>
308		124
309	=over 4	125	=over 4
310		126
311	=item on_init $term	127	=item on_init $term
312		128
313	Called after a new terminal object has been initialized, but before	129	Called after a new terminal object has been initialized, but before
314	windows are created or the command gets run. Most methods are unsafe to	130	windows are created or the command gets run. Most methods are unsafe to
315	call or deliver senseless data, as terminal size and other characteristics	131	call or deliver senseless data, as terminal size and other characteristics
316	have not yet been determined. You can safely query and change resources,	132	have not yet been determined. You can safely query and change resources
317	though.	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).
318		145
319	=item on_reset $term	146	=item on_reset $term
320		147
321	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
322	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
323	variables.	150	variables.
324		151
325	=item on_start $term
326
327	Called at the very end of initialisation of a new terminal, just before
328	returning to the mainloop.
329
330	=item on_child_start $term, $pid	152	=item on_child_start $term, $pid
331		153
332	Called just after the child process has been C<fork>ed.	154	Called just after the child process has been C<fork>ed.
333		155
334	=item on_child_exit $term, $status	156	=item on_child_exit $term, $status
…		…
349		171
350	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
351	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
352	by calling C<< $term->selection >>.	174	by calling C<< $term->selection >>.
353		175
354	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.
355		177
356	=item on_sel_extend $term	178	=item on_sel_extend $term
357		179
358	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
359	click) and is either supposed to return false (normal operation), or	181	click) and is either supposed to return false (normal operation), or
360	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
361	processing. This can happen multiple times, as long as the callback	183	processing. This can happen multiple times, as long as the callback
362	returns true, it will be called on every further click by the user and is	184	returns true, it will be called on every further click by the user and is
363	supposed to enlarge the selection more and more, if possible.	185	supposed to enlarge the selection more and more, if possible.
364		186
365	See the F<selection> example extension.	187	See the F<selection> example extension.
366		188
367	=item on_view_change $term, $offset	189	=item on_view_change $term, $offset
368		190
369	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
370	scrolls. Offset C<0> means display the normal terminal, positive values	192	scrolls. Offset C<0> means display the normal terminal, positive values
371	show this many lines of scrollback.	193	show this many lines of scrollback.
372		194
373	=item on_scroll_back $term, $lines, $saved	195	=item on_scroll_back $term, $lines, $saved
374		196
…		…
378		200
379	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,	201	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
380	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total	202	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
381	number of lines that will be in the scrollback buffer.	203	number of lines that will be in the scrollback buffer.
382		204
383	=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, $resp
384		216
385	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =	217	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
386	operating system command) is processed. Cursor position and other state	218	operating system command) is processed. Cursor position and other state
387	information is up-to-date when this happens. For interoperability, the	219	information is up-to-date when this happens. For interoperability, the
388	string should start with the extension name and a colon, to distinguish	220	string should start with the extension name (sans -osc) and a semicolon,
389	it from commands for other extensions, and this might be enforced in the	221	to distinguish it from commands for other extensions, and this might be
390	future.	222	enforced in the future.
		223
		224	For example, C<overlay-osc> uses this:
		225
		226	sub on_osc_seq_perl {
		227	my ($self, $osc, $resp) = @_;
		228
		229	return unless $osc =~ s/^overlay;//;
		230
		231	... process remaining $osc string
		232	}
391		233
392	Be careful not ever to trust (in a security sense) the data you receive,	234	Be careful not ever to trust (in a security sense) the data you receive,
393	as its source can not easily be controleld (e-mail content, messages from	235	as its source can not easily be controlled (e-mail content, messages from
394	other users on the same system etc.).	236	other users on the same system etc.).
		237
		238	For responses, C<$resp> contains the end-of-args separator used by the
		239	sender.
395		240
396	=item on_add_lines $term, $string	241	=item on_add_lines $term, $string
397		242
398	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
399	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
…		…
404	=item on_tt_write $term, $octets	249	=item on_tt_write $term, $octets
405		250
406	Called whenever some data is written to the tty/pty and can be used to	251	Called whenever some data is written to the tty/pty and can be used to
407	suppress or filter tty input.	252	suppress or filter tty input.
408		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
409	=item on_line_update $term, $row	261	=item on_line_update $term, $row
410		262
411	Called whenever a line was updated or changed. Can be used to filter	263	Called whenever a line was updated or changed. Can be used to filter
412	screen output (e.g. underline urls or other useless stuff). Only lines	264	screen output (e.g. underline urls or other useless stuff). Only lines
413	that are being shown will be filtered, and, due to performance reasons,	265	that are being shown will be filtered, and, due to performance reasons,
…		…
420	later with the already-modified line (e.g. if unrelated parts change), so	272	later with the already-modified line (e.g. if unrelated parts change), so
421	you cannot just toggle rendition bits, but only set them.	273	you cannot just toggle rendition bits, but only set them.
422		274
423	=item on_refresh_begin $term	275	=item on_refresh_begin $term
424		276
425	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
426	or similar effects by modify terminal contents in refresh_begin, and	278	similar effects by modifying the terminal contents in refresh_begin, and
427	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
428	code is run after this hook, and takes precedence.	280	code is run after this hook, and takes precedence.
429		281
430	=item on_refresh_end $term	282	=item on_refresh_end $term
431		283
432	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>.
433		285
434	=item on_keyboard_command $term, $string	286	=item on_user_command $term, $string
435		287
436	Called whenever the user presses a key combination that has a	288	Called whenever a user-configured event is being activated (e.g. via
437	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>
438	resource in the @@RXVT_NAME@@(1) manpage).	290	resource in the @@RXVT_NAME@@(1) manpage).
		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.
439		307
440	=item on_x_event $term, $event	308	=item on_x_event $term, $event
441		309
442	Called on every X event received on the vt window (and possibly other	310	Called on every X event received on the vt window (and possibly other
443	windows). Should only be used as a last resort. Most event structure	311	windows). Should only be used as a last resort. Most event structure
444	members are not passed.	312	members are not passed.
445		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
446	=item on_focus_in $term	318	=item on_focus_in $term
447		319
448	Called whenever the window gets the keyboard focus, before rxvt-unicode	320	Called whenever the window gets the keyboard focus, before rxvt-unicode
449	does focus in processing.	321	does focus in processing.
450		322
451	=item on_focus_out $term	323	=item on_focus_out $term
452		324
453	Called wheneever the window loses keyboard focus, before rxvt-unicode does	325	Called whenever the window loses keyboard focus, before rxvt-unicode does
454	focus out processing.	326	focus out processing.
455		327
456	=item on_configure_notify $term, $event	328	=item on_configure_notify $term, $event
457		329
		330	=item on_property_notify $term, $event
		331
458	=item on_key_press $term, $event, $keysym, $octets	332	=item on_key_press $term, $event, $keysym, $octets
459		333
460	=item on_key_release $term, $event, $keysym	334	=item on_key_release $term, $event, $keysym
461		335
462	=item on_button_press $term, $event	336	=item on_button_press $term, $event
…		…
467		341
468	=item on_map_notify $term, $event	342	=item on_map_notify $term, $event
469		343
470	=item on_unmap_notify $term, $event	344	=item on_unmap_notify $term, $event
471		345
472	Called whenever the corresponding X event is received for the terminal If	346	Called whenever the corresponding X event is received for the terminal. If
473	the hook returns true, then the even will be ignored by rxvt-unicode.	347	the hook returns true, then the event will be ignored by rxvt-unicode.
474		348
475	The event is a hash with most values as named by Xlib (see the XEvent	349	The event is a hash with most values as named by Xlib (see the XEvent
476	manpage), with the additional members C<row> and C<col>, which are the row	350	manpage), with the additional members C<row> and C<col>, which are the
477	and column under the mouse cursor.	351	(real, not screen-based) row and column under the mouse cursor.
478		352
479	C<on_key_press> additionally receives the string rxvt-unicode would	353	C<on_key_press> additionally receives the string rxvt-unicode would
480	output, if any, in locale-specific encoding.	354	output, if any, in locale-specific encoding.
481		355
482	subwindow.	356	subwindow.
483		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
484	=back	371	=back
485		372
486	=cut	373	=cut
487		374
488	package urxvt;	375	package urxvt;
489		376
490	use utf8;	377	use utf8;
491	use strict;	378	use strict 'vars';
492	use Carp ();	379	use Carp ();
493	use Scalar::Util ();	380	use Scalar::Util ();
494	use List::Util ();	381	use List::Util ();
495		382
496	our $VERSION = 1;	383	our $VERSION = 1;
497	our $TERM;	384	our $TERM;
		385	our @TERM_INIT; # should go, prevents async I/O etc.
		386	our @TERM_EXT; # should go, prevents async I/O etc.
498	our @HOOKNAME;	387	our @HOOKNAME;
499	our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;	388	our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
500	our %OPTION;	389	our %OPTION;
501		390
502	our $LIBDIR;	391	our $LIBDIR;
503	our $RESNAME;	392	our $RESNAME;
504	our $RESCLASS;	393	our $RESCLASS;
505	our $RXVTNAME;	394	our $RXVTNAME;
506		395
		396	our $NOCHAR = chr 0xffff;
		397
507	=head2 Variables in the C<urxvt> Package	398	=head2 Variables in the C<urxvt> Package
508		399
509	=over 4	400	=over 4
510		401
511	=item $urxvt::LIBDIR	402	=item $urxvt::LIBDIR
…		…
524	=item $urxvt::TERM	415	=item $urxvt::TERM
525		416
526	The current terminal. This variable stores the current C<urxvt::term>	417	The current terminal. This variable stores the current C<urxvt::term>
527	object, whenever a callback/hook is executing.	418	object, whenever a callback/hook is executing.
528		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>.
		435
529	=back	436	=back
530		437
531	=head2 Functions in the C<urxvt> Package	438	=head2 Functions in the C<urxvt> Package
532		439
533	=over 4	440	=over 4
534		441
535	=item urxvt::fatal $errormessage	442	=item urxvt::fatal $errormessage
536		443
537	Fatally aborts execution with the given error message. Avoid at all	444	Fatally aborts execution with the given error message (which should
538	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
539	starts up.	446	is acceptable (and useful) is in the init hook, where it prevents the
		447	terminal from starting up.
540		448
541	=item urxvt::warn $string	449	=item urxvt::warn $string
542		450
543	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
544	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
545	that calls this function.	453	that calls this function.
546		454
547	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
548	correct place, e.g. on stderr of the connecting urxvtc client.	456	correct place, e.g. on stderr of the connecting urxvtc client.
549		457
550	Messages have a size limit of 1023 bytes currently.	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).
551		466
552	=item $time = urxvt::NOW	467	=item $time = urxvt::NOW
553		468
554	Returns the "current time" (as per the event loop).	469	Returns the "current time" (as per the event loop).
555		470
…		…
598		513
599	=item $rend = urxvt::OVERLAY_RSTYLE	514	=item $rend = urxvt::OVERLAY_RSTYLE
600		515
601	Return the rendition mask used for overlays by default.	516	Return the rendition mask used for overlays by default.
602		517
603	=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
604		520
605	Return the bit that enabled bold, italic, blink, reverse-video and	521	Return the bit that enabled bold, italic, blink, reverse-video and
606	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
607	the bitset.	523	the bitset.
608		524
…		…
613	Return the foreground/background colour index, respectively.	529	Return the foreground/background colour index, respectively.
614		530
615	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour	531	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
616		532
617	=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
618		536
619	Replace the foreground/background colour in the rendition mask with the	537	Replace the foreground/background colour in the rendition mask with the
620	specified one.	538	specified one.
621		539
622	=item $value = urxvt::GET_CUSTOM $rend	540	=item $value = urxvt::GET_CUSTOM $rend
…		…
641	unless $msg =~ /\n$/;	559	unless $msg =~ /\n$/;
642	urxvt::warn ($msg);	560	urxvt::warn ($msg);
643	};	561	};
644	}	562	}
645		563
		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
646	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};	626	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
647		627
648	sub verbose {	628	sub verbose {
649	my ($level, $msg) = @_;	629	my ($level, $msg) = @_;
650	warn "$msg\n" if $level <= $verbosity;	630	warn "$msg\n" if $level <= $verbosity;
…		…
653	my %extension_pkg;	633	my %extension_pkg;
654		634
655	# load a single script into its own package, once only	635	# load a single script into its own package, once only
656	sub extension_package($) {	636	sub extension_package($) {
657	my ($path) = @_;	637	my ($path) = @_;
658
659	no strict 'refs';
660		638
661	$extension_pkg{$path} ||= do {	639	$extension_pkg{$path} ||= do {
662	$path =~ /([^\/\\]+)$/;	640	$path =~ /([^\/\\]+)$/;
663	my $pkg = $1;	641	my $pkg = $1;
664	$pkg =~ s/[^[:word:]]/_/g;	642	$pkg =~ s/[^[:word:]]/_/g;
665	$pkg = "urxvt::ext::$pkg";	643	$pkg = "urxvt::ext::$pkg";
666		644
667	verbose 3, "loading extension '$path' into package '$pkg'";	645	verbose 3, "loading extension '$path' into package '$pkg'";
668		646
		647	(${"$pkg\::_NAME"} = $path) =~ s/^.*[\\\/]//; # hackish
		648
669	open my $fh, "<:raw", $path	649	open my $fh, "<:raw", $path
670	or die "$path: $!";	650	or die "$path: $!";
671		651
672	@{"$pkg\::ISA"} = urxvt::term::extension::;
673
674	my $source =	652	my $source =
675	"package $pkg; use strict; use utf8;\n"	653	"package $pkg; use strict 'vars'; use utf8; no warnings 'utf8';\n"
676	. "#line 1 \"$path\"\n{\n"	654	. "#line 1 \"$path\"\n{\n"
677	. (do { local $/; <$fh> })	655	. (do { local $/; <$fh> })
678	. "\n};\n1";	656	. "\n};\n1";
679		657
680	eval $source	658	eval $source
…		…
690	sub invoke {	668	sub invoke {
691	local $TERM = shift;	669	local $TERM = shift;
692	my $htype = shift;	670	my $htype = shift;
693		671
694	if ($htype == 0) { # INIT	672	if ($htype == 0) { # INIT
695	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");	673	my @dirs = $TERM->perl_libdirs;
696		674
697	my %ext_arg;	675	my %ext_arg;
698		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} },
699	for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {	688	grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2
		689	) {
700	if ($_ eq "default") {	690	if ($_ eq "default") {
701	$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback);	691	$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
702	} elsif (/^-(.*)$/) {	692	} elsif (/^-(.*)$/) {
703	delete $ext_arg{$1};	693	delete $ext_arg{$1};
704	} elsif (/^([^<]+)<(.*)>$/) {	694	} elsif (/^([^<]+)<(.*)>$/) {
705	push @{ $ext_arg{$1} }, $2;	695	push @{ $ext_arg{$1} }, $2;
706	} else {	696	} else {
707	$ext_arg{$_} ||= [];	697	$ext_arg{$_} ||= [];
708	}	698	}
709	}	699	}
710		700
711	while (my ($ext, $argv) = each %ext_arg) {	701	for my $ext (sort keys %ext_arg) {
712	my @files = grep -f $_, map "$_/$ext", @dirs;	702	my @files = grep -f $_, map "$_/$ext", @dirs;
713		703
714	if (@files) {	704	if (@files) {
715	$TERM->register_package (extension_package $files[0], $argv);	705	$TERM->register_package (extension_package $files[0], $ext_arg{$ext});
716	} else {	706	} else {
717	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";
718	}	708	}
719	}	709	}
720		710
…		…
726		716
727	if (my $cb = $TERM->{_hook}[$htype]) {	717	if (my $cb = $TERM->{_hook}[$htype]) {
728	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"	718	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
729	if $verbosity >= 10;	719	if $verbosity >= 10;
730		720
731	keys %$cb;	721	for my $pkg (keys %$cb) {
732
733	while (my ($pkg, $cb) = each %$cb) {
734	$retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) }	722	my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg} || $TERM, @_) };
735	and last;	723	$retval ||= $retval_;
736		724
737	if ($@) {	725	if ($@) {
738	$TERM->ungrab; # better to lose the grab than the session	726	$TERM->ungrab; # better to lose the grab than the session
739	warn $@;	727	warn $@;
740	}	728	}
…		…
753	}	741	}
754		742
755	$retval	743	$retval
756	}	744	}
757		745
758	# urxvt::term::extension	746	sub SET_COLOR($$$) {
		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	}
759		774
760	package urxvt::term::extension;	775	package urxvt::term::extension;
761		776
762	sub enable {	777	=head2 The C<urxvt::term::extension> class
763	my ($self, %hook) = @_;
764	my $pkg = $self->{_pkg};
765		778
766	while (my ($name, $cb) = each %hook) {	779	Each extension attached to a terminal object is represented by
767	my $htype = $HOOKTYPE{uc $name};	780	a C<urxvt::term::extension> object.
768	defined $htype
769	or Carp::croak "unsupported hook type '$name'";
770		781
771	$self->set_should_invoke ($htype, +1)	782	You can use these objects, which are passed to all callbacks to store any
772	unless exists $self->{term}{_hook}[$htype]{$pkg};	783	state related to the terminal and extension instance.
773		784
774	$self->{term}{_hook}[$htype]{$pkg} = $cb;	785	The methods (And data members) documented below can be called on extension
775	}	786	objects, in addition to call methods documented for the <urxvt::term>
776	}	787	class.
777		788
778	sub disable {	789	=over 4
779	my ($self, @hook) = @_;
780	my $pkg = $self->{_pkg};
781		790
782	for my $name (@hook) {	791	=item $urxvt_term = $self->{term}
783	my $htype = $HOOKTYPE{uc $name};
784	defined $htype
785	or Carp::croak "unsupported hook type '$name'";
786		792
787	$self->set_should_invoke ($htype, -1)	793	Returns the C<urxvt::term> object associated with this instance of the
788	if delete $self->{term}{_hook}[$htype]{$pkg};	794	extension. This member I<must not> be changed in any way.
789	}	795
790	}	796	=cut
791		797
792	our $AUTOLOAD;	798	our $AUTOLOAD;
793		799
794	sub AUTOLOAD {	800	sub AUTOLOAD {
795	$AUTOLOAD =~ /:([^:]+)$/	801	$AUTOLOAD =~ /:([^:]+)$/
…		…
808		814
809	sub DESTROY {	815	sub DESTROY {
810	# nop	816	# nop
811	}	817	}
812		818
813	# urxvt::destroy_hook	819	# urxvt::destroy_hook (basically a cheap Guard:: implementation)
814		820
815	sub urxvt::destroy_hook::DESTROY {	821	sub urxvt::destroy_hook::DESTROY {
816	${$_[0]}->();	822	${$_[0]}->();
817	}	823	}
818		824
819	sub urxvt::destroy_hook(&) {	825	sub urxvt::destroy_hook(&) {
820	bless \shift, urxvt::destroy_hook::	826	bless \shift, urxvt::destroy_hook::
821	}	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 $self = delete $disable->{""};
		887
		888	while (my ($htype, $id) = each %$disable) {
		889	delete $self->{_hook}[$htype]{$id};
		890	$self->set_should_invoke ($htype, -1);
		891	}
		892	}
		893
		894	sub on {
		895	my ($self, %hook) = @_;
		896
		897	my %disable = ( "" => $self );
		898
		899	while (my ($name, $cb) = each %hook) {
		900	my $htype = $HOOKTYPE{uc $name};
		901	defined $htype
		902	or Carp::croak "unsupported hook type '$name'";
		903
		904	my $id = $cb+0;
		905
		906	$self->set_should_invoke ($htype, +1);
		907	$disable{$htype} = $id;
		908	$self->{_hook}[$htype]{$id} = 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
822		939
823	package urxvt::anyevent;	940	package urxvt::anyevent;
824		941
825	=head2 The C<urxvt::anyevent> Class	942	=head2 The C<urxvt::anyevent> Class
826		943
827	The sole purpose of this class is to deliver an interface to the	944	The sole purpose of this class is to deliver an interface to the
828	C<AnyEvent> module - any module using it will work inside urxvt without	945	C<AnyEvent> module - any module using it will work inside urxvt without
829	further programming. The only exception is that you cannot wait on	946	further programming. The only exception is that you cannot wait on
830	condition variables, but non-blocking condvar use is ok. What this means	947	condition variables, but non-blocking condvar use is ok.
831	is that you cannot use blocking APIs, but the non-blocking variant should
832	work.
833		948
834	=cut	949	In practical terms this means is that you cannot use blocking APIs, but
		950	the non-blocking variant should work.
835		951
		952	=cut
		953
836	our $VERSION = 1;	954	our $VERSION = '5.23';
837		955
838	$INC{"urxvt/anyevent.pm"} = 1; # mark us as there	956	$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
839	push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];	957	push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
840		958
841	sub timer {	959	sub timer {
…		…
843		961
844	my $cb = $arg{cb};	962	my $cb = $arg{cb};
845		963
846	urxvt::timer	964	urxvt::timer
847	->new	965	->new
848	->start (urxvt::NOW + $arg{after})	966	->after ($arg{after}, $arg{interval})
849	->cb (sub {	967	->cb ($arg{interval} ? $cb : sub {
850	$_[0]->stop; # need to cancel manually	968	$_[0]->stop; # need to cancel manually
851	$cb->();	969	$cb->();
852	})	970	})
853	}	971	}
854		972
855	sub io {	973	sub io {
856	my ($class, %arg) = @_;	974	my ($class, %arg) = @_;
857		975
858	my $cb = $arg{cb};	976	my $cb = $arg{cb};
		977	my $fd = fileno $arg{fh};
		978	defined $fd or $fd = $arg{fh};
859		979
860	bless [$arg{fh}, urxvt::iow	980	bless [$arg{fh}, urxvt::iow
861	->new	981	->new
862	->fd (fileno $arg{fh})	982	->fd ($fd)
863	->events (($arg{poll} =~ /r/ ? 1 : 0)	983	->events (($arg{poll} =~ /r/ ? 1 : 0)
864	| ($arg{poll} =~ /w/ ? 2 : 0))	984	| ($arg{poll} =~ /w/ ? 2 : 0))
865	->start	985	->start
866	->cb (sub {	986	->cb ($cb)
867	$cb->(($_[1] & 1 ? 'r' : '')
868	. ($_[1] & 2 ? 'w' : ''));
869	})],
870	urxvt::anyevent::	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	})
871	}	1013	}
872		1014
873	sub DESTROY {	1015	sub DESTROY {
874	$_[0][1]->stop;	1016	$_[0][1]->stop;
875	}	1017	}
876		1018
877	sub condvar {	1019	# only needed for AnyEvent < 6 compatibility
878	bless \my $flag, urxvt::anyevent::condvar::	1020	sub one_event {
879	}
880
881	sub urxvt::anyevent::condvar::broadcast {
882	${$_[0]}++;
883	}
884
885	sub urxvt::anyevent::condvar::wait {
886	unless (${$_[0]}) {
887	Carp::croak "AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API";	1021	Carp::croak "AnyEvent->one_event blocking wait unsupported in urxvt, use a non-blocking API";
888	}
889	}	1022	}
890		1023
891	package urxvt::term;	1024	package urxvt::term;
892		1025
893	=head2 The C<urxvt::term> Class	1026	=head2 The C<urxvt::term> Class
…		…
899	# find on_xxx subs in the package and register them	1032	# find on_xxx subs in the package and register them
900	# as hooks	1033	# as hooks
901	sub register_package {	1034	sub register_package {
902	my ($self, $pkg, $argv) = @_;	1035	my ($self, $pkg, $argv) = @_;
903		1036
		1037	no strict 'refs';
		1038
		1039	urxvt::verbose 6, "register package $pkg to $self";
		1040
		1041	@{"$pkg\::ISA"} = urxvt::term::extension::;
		1042
904	my $proxy = bless {	1043	my $proxy = bless {
905	_pkg => $pkg,	1044	_pkg => $pkg,
		1045	_name => ${"$pkg\::_NAME"}, # hackish
906	argv => $argv,	1046	argv => $argv,
907	}, $pkg;	1047	}, $pkg;
908	Scalar::Util::weaken ($proxy->{term} = $self);	1048	Scalar::Util::weaken ($proxy->{term} = $self);
909		1049
910	$self->{_pkg}{$pkg} = $proxy;	1050	$self->{_pkg}{$pkg} = $proxy;
911		1051
…		…
914	$proxy->enable ($name => $ref);	1054	$proxy->enable ($name => $ref);
915	}	1055	}
916	}	1056	}
917	}	1057	}
918		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 ne "."
		1083	and $ext ne ".."
		1084	and open my $fh, "<", "$dir/$ext"
		1085	or next;
		1086
		1087	while (<$fh>) {
		1088	if (/^#:META:X_RESOURCE:(.*)/) {
		1089	my ($pattern, $type, $desc) = split /:/, $1;
		1090	$pattern =~ s/^%(\.|$)/$ext$1/g; # % in pattern == extension name
		1091	if ($pattern =~ /[^a-zA-Z0-9\-\.]/) {
		1092	warn "$dir/$ext: meta resource '$pattern' contains illegal characters (not alphanumeric nor . nor *)\n";
		1093	} else {
		1094	$meta{resource}{$pattern} = [$ext, $type, $desc];
		1095	}
		1096	} elsif (/^\s*(?:#|$)/) {
		1097	# skip other comments and empty lines
		1098	} else {
		1099	last; # stop parsing on first non-empty non-comment line
		1100	}
		1101	}
		1102	}
		1103	}
		1104	}
		1105
919	=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]	1106	=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
920		1107
921	Creates a new terminal, very similar as if you had started it with system	1108	Creates a new terminal, very similar as if you had started it with system
922	C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like	1109	C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
923	hash which defines the environment of the new terminal.	1110	hash which defines the environment of the new terminal.
924		1111
925	Croaks (and probably outputs an error message) if the new instance	1112	Croaks (and probably outputs an error message) if the new instance
926	couldn't be created. Returns C<undef> if the new instance didn't	1113	couldn't be created. Returns C<undef> if the new instance didn't
927	initialise perl, and the terminal object otherwise. The C<init> and	1114	initialise perl, and the terminal object otherwise. The C<init> and
928	C<start> hooks will be called during this call.	1115	C<start> hooks will be called before this call returns, and are free to
		1116	refer to global data (which is race free).
929		1117
930	=cut	1118	=cut
931		1119
932	sub new {	1120	sub new {
933	my ($class, $env, @args) = @_;	1121	my ($class, $env, @args) = @_;
934		1122
		1123	$env or Carp::croak "environment hash missing in call to urxvt::term->new";
		1124	@args or Carp::croak "name argument missing in call to urxvt::term->new";
		1125
935	_new ([ map "$_=$env->{$_}", keys %$env ], @args);	1126	_new ([ map "$_=$env->{$_}", keys %$env ], \@args);
936	}	1127	}
937		1128
938	=item $term->destroy	1129	=item $term->destroy
939		1130
940	Destroy the terminal object (close the window, free resources	1131	Destroy the terminal object (close the window, free resources
…		…
970		1161
971	Returns true if the option specified by C<$optval> is enabled, and	1162	Returns true if the option specified by C<$optval> is enabled, and
972	optionally change it. All option values are stored by name in the hash	1163	optionally change it. All option values are stored by name in the hash
973	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.	1164	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
974		1165
975	Here is a a likely non-exhaustive list of option names, please see the	1166	Here is a likely non-exhaustive list of option names, please see the
976	source file F</src/optinc.h> to see the actual list:	1167	source file F</src/optinc.h> to see the actual list:
977		1168
978	borderLess console cursorBlink cursorUnderline hold iconic insecure	1169	borderLess buffered console cursorBlink cursorUnderline hold iconic
979	intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage	1170	insecure intensityStyles iso14755 iso14755_52 jumpScroll loginShell
980	override-redirect pastableTabs pointerBlank reverseVideo scrollBar	1171	mapAlert meta8 mouseWheelScrollPage override_redirect pastableTabs
981	scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput	1172	pointerBlank reverseVideo scrollBar scrollBar_floating scrollBar_right
982	scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs	1173	scrollTtyKeypress scrollTtyOutput scrollWithBuffer secondaryScreen
983	transparent tripleclickwords utmpInhibit visualBell	1174	secondaryScroll skipBuiltinGlyphs skipScroll transparent tripleclickwords
		1175	urgentOnBell utmpInhibit visualBell
984		1176
985	=item $value = $term->resource ($name[, $newval])	1177	=item $value = $term->resource ($name[, $newval])
986		1178
987	Returns the current resource value associated with a given name and	1179	Returns the current resource value associated with a given name and
988	optionally sets a new value. Setting values is most useful in the C<init>	1180	optionally sets a new value. Setting values is most useful in the C<init>
…		…
997	likely change).	1189	likely change).
998		1190
999	Please note that resource strings will currently only be freed when the	1191	Please note that resource strings will currently only be freed when the
1000	terminal is destroyed, so changing options frequently will eat memory.	1192	terminal is destroyed, so changing options frequently will eat memory.
1001		1193
1002	Here is a a likely non-exhaustive list of resource names, not all of which	1194	Here is a likely non-exhaustive list of resource names, not all of which
1003	are supported in every build, please see the source file F</src/rsinc.h>	1195	are supported in every build, please see the source file F</src/rsinc.h>
1004	to see the actual list:	1196	to see the actual list:
1005		1197
1006	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont	1198	answerbackstring backgroundPixmap backspace_key blurradius
1007	borderLess color cursorBlink cursorUnderline cutchars delete_key	1199	boldFont boldItalicFont borderLess buffered chdir color cursorBlink
1008	display_name embed ext_bwidth fade font geometry hold iconName	1200	cursorUnderline cutchars delete_key depth display_name embed ext_bwidth
1009	imFont imLocale inputMethod insecure int_bwidth intensityStyles	1201	fade font geometry hold iconName iconfile imFont imLocale inputMethod
		1202	insecure int_bwidth intensityStyles iso14755 iso14755_52 italicFont
1010	italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier	1203	jumpScroll letterSpace lineSpace loginShell mapAlert meta8 modifier
1011	mouseWheelScrollPage name override_redirect pastableTabs path perl_eval	1204	mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
1012	perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay	1205	perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
1013	preeditType print_pipe pty_fd reverseVideo saveLines scrollBar	1206	preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
1014	scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness	1207	scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
1015	scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle	1208	scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
1016	secondaryScreen secondaryScroll selectstyle shade term_name title	1209	secondaryScreen secondaryScroll shade skipBuiltinGlyphs skipScroll
1017	transient_for transparent transparent_all tripleclickwords utmpInhibit	1210	term_name title transient_for transparent tripleclickwords urgentOnBell
1018	visualBell	1211	utmpInhibit visualBell
1019		1212
1020	=cut	1213	=cut
1021		1214
1022	sub resource($$;$) {	1215	sub resource($$;$) {
1023	my ($self, $name) = (shift, shift);	1216	my ($self, $name) = (shift, shift);
1024	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);	1217	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
1025	&urxvt::term::_resource	1218	goto &urxvt::term::_resource
1026	}	1219	}
1027		1220
1028	=item $value = $term->x_resource ($pattern)	1221	=item $value = $term->x_resource ($pattern)
1029		1222
1030	Returns the X-Resource for the given pattern, excluding the program or	1223	Returns the X-Resource for the given pattern, excluding the program or
1031	class name, i.e. C<< $term->x_resource ("boldFont") >> should return the	1224	class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
1032	same value as used by this instance of rxvt-unicode. Returns C<undef> if no	1225	same value as used by this instance of rxvt-unicode. Returns C<undef> if no
1033	resource with that pattern exists.	1226	resource with that pattern exists.
1034		1227
		1228	Extensions that define extra resource or command line arguments also need
		1229	to call this method to access their values.
		1230
		1231	If the method is called on an extension object (basically, from an
		1232	extension), then the special prefix C<%.> will be replaced by the name of
		1233	the extension and a dot, and the lone string C<%> will be replaced by the
		1234	extension name itself. This makes it possible to code extensions so you
		1235	can rename them and get a new set of commandline switches and resources
		1236	without having to change the actual code.
		1237
1035	This method should only be called during the C<on_start> hook, as there is	1238	This method should only be called during the C<on_start> hook, as there is
1036	only one resource database per display, and later invocations might return	1239	only one resource database per display, and later invocations might return
1037	the wrong resources.	1240	the wrong resources.
1038		1241
1039	=item $success = $term->parse_keysym ($keysym_spec, $command_string)	1242	=item $value = $term->x_resource_boolean ($pattern)
1040		1243
		1244	Like C<x_resource>, above, but interprets the string value as a boolean
		1245	and returns C<1> for true values, C<0> for false values and C<undef> if
		1246	the resource or option isn't specified.
		1247
		1248	You should always use this method to parse boolean resources.
		1249
		1250	=cut
		1251
		1252	sub x_resource_boolean {
		1253	my $res = &x_resource;
		1254
		1255	$res =~ /^\s*(?:true|yes|on|1)\s*$/i ? 1 : defined $res && 0
		1256	}
		1257
		1258	=item $success = $term->parse_keysym ($key, $octets)
		1259
1041	Adds a keymap translation exactly as specified via a resource. See the	1260	Adds a key binding exactly as specified via a resource. See the
1042	C<keysym> resource in the @@RXVT_NAME@@(1) manpage.	1261	C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
		1262
		1263	=item $term->register_command ($keysym, $modifiermask, $string)
		1264
		1265	Adds a key binding. This is a lower level api compared to
		1266	C<parse_keysym>, as it expects a parsed key description, and can be
		1267	used only inside either the C<on_init> hook, to add a binding, or the
		1268	C<on_register_command> hook, to modify a parsed binding.
1043		1269
1044	=item $rend = $term->rstyle ([$new_rstyle])	1270	=item $rend = $term->rstyle ([$new_rstyle])
1045		1271
1046	Return and optionally change the current rendition. Text that is output by	1272	Return and optionally change the current rendition. Text that is output by
1047	the terminal application will use this style.	1273	the terminal application will use this style.
…		…
1055		1281
1056	=item ($row, $col) = $term->selection_beg ([$row, $col])	1282	=item ($row, $col) = $term->selection_beg ([$row, $col])
1057		1283
1058	=item ($row, $col) = $term->selection_end ([$row, $col])	1284	=item ($row, $col) = $term->selection_end ([$row, $col])
1059		1285
1060	Return the current values of the selection mark, begin or end positions,	1286	Return the current values of the selection mark, begin or end positions.
1061	and optionally set them to new values.	1287
		1288	When arguments are given, then the selection coordinates are set to
		1289	C<$row> and C<$col>, and the selection screen is set to the current
		1290	screen.
		1291
		1292	=item $screen = $term->selection_screen ([$screen])
		1293
		1294	Returns the current selection screen, and then optionally sets it.
1062		1295
1063	=item $term->selection_make ($eventtime[, $rectangular])	1296	=item $term->selection_make ($eventtime[, $rectangular])
1064		1297
1065	Tries to make a selection as set by C<selection_beg> and	1298	Tries to make a selection as set by C<selection_beg> and
1066	C<selection_end>. If C<$rectangular> is true (default: false), a	1299	C<selection_end>. If C<$rectangular> is true (default: false), a
1067	rectangular selection will be made. This is the prefered function to make	1300	rectangular selection will be made. This is the preferred function to make
1068	a selection.	1301	a selection.
1069		1302
1070	=item $success = $term->selection_grab ($eventtime)	1303	=item $success = $term->selection_grab ($eventtime[, $clipboard])
1071		1304
1072	Try to request the primary selection text from the server (for example, as	1305	Try to acquire ownership of the primary (clipboard if C<$clipboard> is
		1306	true) selection from the server. The corresponding text can be set
1073	set by the next method). No visual feedback will be given. This function	1307	with the next method. No visual feedback will be given. This function
1074	is mostly useful from within C<on_sel_grab> hooks.	1308	is mostly useful from within C<on_sel_grab> hooks.
1075		1309
1076	=item $oldtext = $term->selection ([$newtext])	1310	=item $oldtext = $term->selection ([$newtext, $clipboard])
1077		1311
1078	Return the current selection text and optionally replace it by C<$newtext>.	1312	Return the current selection (clipboard if C<$clipboard> is true) text
		1313	and optionally replace it by C<$newtext>.
		1314
		1315	=item $term->selection_clear ([$clipboard])
		1316
		1317	Revoke ownership of the primary (clipboard if C<$clipboard> is true) selection.
1079		1318
1080	=item $term->overlay_simple ($x, $y, $text)	1319	=item $term->overlay_simple ($x, $y, $text)
1081		1320
1082	Create a simple multi-line overlay box. See the next method for details.	1321	Create a simple multi-line overlay box. See the next method for details.
1083		1322
…		…
1113		1352
1114	The methods currently supported on C<urxvt::overlay> objects are:	1353	The methods currently supported on C<urxvt::overlay> objects are:
1115		1354
1116	=over 4	1355	=over 4
1117		1356
1118	=item $overlay->set ($x, $y, $text, $rend)	1357	=item $overlay->set ($x, $y, $text[, $rend])
1119		1358
1120	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts	1359	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts
1121	text in rxvt-unicode's special encoding and an array of rendition values	1360	text in rxvt-unicode's special encoding and an array of rendition values
1122	at a specific position inside the overlay.	1361	at a specific position inside the overlay.
		1362
		1363	If C<$rend> is missing, then the rendition will not be changed.
1123		1364
1124	=item $overlay->hide	1365	=item $overlay->hide
1125		1366
1126	If visible, hide the overlay, but do not destroy it.	1367	If visible, hide the overlay, but do not destroy it.
1127		1368
…		…
1197		1438
1198	Normally its not a good idea to use this function, as programs might be	1439	Normally its not a good idea to use this function, as programs might be
1199	confused by changes in cursor position or scrolling. Its useful inside a	1440	confused by changes in cursor position or scrolling. Its useful inside a
1200	C<on_add_lines> hook, though.	1441	C<on_add_lines> hook, though.
1201		1442
		1443	=item $term->scr_change_screen ($screen)
		1444
		1445	Switch to given screen - 0 primary, 1 secondary.
		1446
1202	=item $term->cmd_parse ($octets)	1447	=item $term->cmd_parse ($octets)
1203		1448
1204	Similar to C<scr_add_lines>, but the argument must be in the	1449	Similar to C<scr_add_lines>, but the argument must be in the
1205	locale-specific encoding of the terminal and can contain command sequences	1450	locale-specific encoding of the terminal and can contain command sequences
1206	(escape codes) that will be interpreted.	1451	(escape codes) that will be interpreted.
1207		1452
1208	=item $term->tt_write ($octets)	1453	=item $term->tt_write ($octets)
1209		1454
1210	Write the octets given in C<$data> to the tty (i.e. as program input). To	1455	Write the octets given in C<$octets> to the tty (i.e. as program input). To
1211	pass characters instead of octets, you should convert your strings first	1456	pass characters instead of octets, you should convert your strings first
1212	to the locale-specific encoding using C<< $term->locale_encode >>.	1457	to the locale-specific encoding using C<< $term->locale_encode >>.
		1458
		1459	=item $term->tt_paste ($octets)
		1460
		1461	Write the octets given in C<$octets> to the tty as a paste, converting NL to
		1462	CR and bracketing the data with control sequences if bracketed paste mode
		1463	is set.
1213		1464
1214	=item $old_events = $term->pty_ev_events ([$new_events])	1465	=item $old_events = $term->pty_ev_events ([$new_events])
1215		1466
1216	Replaces the event mask of the pty watcher by the given event mask. Can	1467	Replaces the event mask of the pty watcher by the given event mask. Can
1217	be used to suppress input and output handling to the pty/tty. See the	1468	be used to suppress input and output handling to the pty/tty. See the
1218	description of C<< urxvt::timer->events >>. Make sure to always restore	1469	description of C<< urxvt::timer->events >>. Make sure to always restore
1219	the previous value.	1470	the previous value.
1220		1471
		1472	=item $fd = $term->pty_fd
		1473
		1474	Returns the master file descriptor for the pty in use, or C<-1> if no pty
		1475	is used.
		1476
1221	=item $windowid = $term->parent	1477	=item $windowid = $term->parent
1222		1478
1223	Return the window id of the toplevel window.	1479	Return the window id of the toplevel window.
1224		1480
1225	=item $windowid = $term->vt	1481	=item $windowid = $term->vt
…		…
1231	Adds the specified events to the vt event mask. Useful e.g. when you want	1487	Adds the specified events to the vt event mask. Useful e.g. when you want
1232	to receive pointer events all the times:	1488	to receive pointer events all the times:
1233		1489
1234	$term->vt_emask_add (urxvt::PointerMotionMask);	1490	$term->vt_emask_add (urxvt::PointerMotionMask);
1235		1491
		1492	=item $term->set_urgency ($set)
		1493
		1494	Enable/disable the urgency hint on the toplevel window.
		1495
		1496	=item $term->focus_in
		1497
		1498	=item $term->focus_out
		1499
		1500	=item $term->key_press ($state, $keycode[, $time])
		1501
		1502	=item $term->key_release ($state, $keycode[, $time])
		1503
		1504	Deliver various fake events to to terminal.
		1505
1236	=item $window_width = $term->width	1506	=item $window_width = $term->width
1237		1507
1238	=item $window_height = $term->height	1508	=item $window_height = $term->height
1239		1509
1240	=item $font_width = $term->fwidth	1510	=item $font_width = $term->fwidth
…		…
1270	=item $env = $term->env	1540	=item $env = $term->env
1271		1541
1272	Returns a copy of the environment in effect for the terminal as a hashref	1542	Returns a copy of the environment in effect for the terminal as a hashref
1273	similar to C<\%ENV>.	1543	similar to C<\%ENV>.
1274		1544
		1545	=item @envv = $term->envv
		1546
		1547	Returns the environment as array of strings of the form C<VAR=VALUE>.
		1548
		1549	=item @argv = $term->argv
		1550
		1551	Return the argument vector as this terminal, similar to @ARGV, but
		1552	includes the program name as first element.
		1553
1275	=cut	1554	=cut
1276		1555
1277	sub env {	1556	sub env {
1278	if (my $env = $_[0]->_env) {
1279	+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), @$env }	1557	+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), $_[0]->envv }
1280	} else {
1281	+{ %ENV }
1282	}
1283	}	1558	}
1284		1559
1285	=item $modifiermask = $term->ModLevel3Mask	1560	=item $modifiermask = $term->ModLevel3Mask
1286		1561
1287	=item $modifiermask = $term->ModMetaMask	1562	=item $modifiermask = $term->ModMetaMask
1288		1563
1289	=item $modifiermask = $term->ModNumLockMask	1564	=item $modifiermask = $term->ModNumLockMask
1290		1565
1291	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often	1566	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1292	AltGr), the meta key (often Alt) and the num lock key, if applicable.	1567	AltGr), the meta key (often Alt) and the num lock key, if applicable.
		1568
		1569	=item $screen = $term->current_screen
		1570
		1571	Returns the currently displayed screen (0 primary, 1 secondary).
		1572
		1573	=item $cursor_is_hidden = $term->hidden_cursor
		1574
		1575	Returns whether the cursor is currently hidden or not.
1293		1576
1294	=item $view_start = $term->view_start ([$newvalue])	1577	=item $view_start = $term->view_start ([$newvalue])
1295		1578
1296	Returns the row number of the topmost displayed line. Maximum value is	1579	Returns the row number of the topmost displayed line. Maximum value is
1297	C<0>, which displays the normal terminal contents. Lower values scroll	1580	C<0>, which displays the normal terminal contents. Lower values scroll
…		…
1305		1588
1306	Used after changing terminal contents to display them.	1589	Used after changing terminal contents to display them.
1307		1590
1308	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])	1591	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
1309		1592
1310	Returns the text of the entire row with number C<$row_number>. Row C<0>	1593	Returns the text of the entire row with number C<$row_number>. Row C<< $term->top_row >>
1311	is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost	1594	is the topmost terminal line, row C<< $term->nrow-1 >> is the bottommost
1312	terminal line. The scrollback buffer starts at line C<-1> and extends to
1313	line C<< -$term->nsaved >>. Nothing will be returned if a nonexistent line	1595	terminal line. Nothing will be returned if a nonexistent line
1314	is requested.	1596	is requested.
1315		1597
1316	If C<$new_text> is specified, it will replace characters in the current	1598	If C<$new_text> is specified, it will replace characters in the current
1317	line, starting at column C<$start_col> (default C<0>), which is useful	1599	line, starting at column C<$start_col> (default C<0>), which is useful
1318	to replace only parts of a line. The font index in the rendition will	1600	to replace only parts of a line. The font index in the rendition will
1319	automatically be updated.	1601	automatically be updated.
1320		1602
1321	C<$text> is in a special encoding: tabs and wide characters that use more	1603	C<$text> is in a special encoding: tabs and wide characters that use more
1322	than one cell when displayed are padded with urxvt::NOCHAR characters	1604	than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
1323	(C<chr 65535>). Characters with combining characters and other characters	1605	characters. Characters with combining characters and other characters that
1324	that do not fit into the normal tetx encoding will be replaced with	1606	do not fit into the normal text encoding will be replaced with characters
1325	characters in the private use area.	1607	in the private use area.
1326		1608
1327	You have to obey this encoding when changing text. The advantage is	1609	You have to obey this encoding when changing text. The advantage is
1328	that C<substr> and similar functions work on screen cells and not on	1610	that C<substr> and similar functions work on screen cells and not on
1329	characters.	1611	characters.
1330		1612
…		…
1474	where one character corresponds to one screen cell. See	1756	where one character corresponds to one screen cell. See
1475	C<< $term->ROW_t >> for details.	1757	C<< $term->ROW_t >> for details.
1476		1758
1477	=item $string = $term->special_decode $text	1759	=item $string = $term->special_decode $text
1478		1760
1479	Converts rxvt-unicodes text reprsentation into a perl string. See	1761	Converts rxvt-unicodes text representation into a perl string. See
1480	C<< $term->ROW_t >> for details.	1762	C<< $term->ROW_t >> for details.
1481		1763
1482	=item $success = $term->grab_button ($button, $modifiermask)	1764	=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
1483		1765
		1766	=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
		1767
1484	Registers a synchronous button grab. See the XGrabButton manpage.	1768	Register/unregister a synchronous button grab. See the XGrabButton
		1769	manpage.
1485		1770
1486	=item $success = $term->grab ($eventtime[, $sync])	1771	=item $success = $term->grab ($eventtime[, $sync])
1487		1772
1488	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or	1773	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
1489	synchronous (C<$sync> is true). Also remembers the grab timestampe.	1774	synchronous (C<$sync> is true). Also remembers the grab timestamp.
1490		1775
1491	=item $term->allow_events_async	1776	=item $term->allow_events_async
1492		1777
1493	Calls XAllowEvents with AsyncBoth for the most recent grab.	1778	Calls XAllowEvents with AsyncBoth for the most recent grab.
1494		1779
…		…
1501	Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most	1786	Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
1502	recent grab.	1787	recent grab.
1503		1788
1504	=item $term->ungrab	1789	=item $term->ungrab
1505		1790
1506	Calls XUngrab for the most recent grab. Is called automatically on	1791	Calls XUngrabPointer and XUngrabKeyboard for the most recent grab. Is called automatically on
1507	evaluation errors, as it is better to lose the grab in the error case as	1792	evaluation errors, as it is better to lose the grab in the error case as
1508	the session.	1793	the session.
		1794
		1795	=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
		1796
		1797	=item $atom_name = $term->XGetAtomName ($atom)
		1798
		1799	=item @atoms = $term->XListProperties ($window)
		1800
		1801	=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
		1802
		1803	=item $term->XChangeProperty ($window, $property, $type, $format, $octets)
		1804
		1805	=item $term->XDeleteProperty ($window, $property)
		1806
		1807	=item $window = $term->DefaultRootWindow
		1808
		1809	=item $term->XReparentWindow ($window, $parent, [$x, $y])
		1810
		1811	=item $term->XMapWindow ($window)
		1812
		1813	=item $term->XUnmapWindow ($window)
		1814
		1815	=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
		1816
		1817	=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
		1818
		1819	=item $term->XChangeInput ($window, $add_events[, $del_events])
		1820
		1821	=item $keysym = $term->XStringToKeysym ($string)
		1822
		1823	=item $string = $term->XKeysymToString ($keysym)
		1824
		1825	Various X or X-related functions. The C<$term> object only serves as
		1826	the source of the display, otherwise those functions map more-or-less
		1827	directly onto the X functions of the same name.
1509		1828
1510	=back	1829	=back
1511		1830
1512	=cut	1831	=cut
1513		1832
…		…
1577	my ($self, $text, $cb) = @_;	1896	my ($self, $text, $cb) = @_;
1578		1897
1579	$self->add_item ({ type => "button", text => $text, activate => $cb});	1898	$self->add_item ({ type => "button", text => $text, activate => $cb});
1580	}	1899	}
1581		1900
1582	=item $popup->add_toggle ($text, $cb, $initial_value)	1901	=item $popup->add_toggle ($text, $initial_value, $cb)
1583		1902
1584	Adds a toggle/checkbox item to the popup. Teh callback gets called	1903	Adds a toggle/checkbox item to the popup. The callback gets called
1585	whenever it gets toggled, with a boolean indicating its value as its first	1904	whenever it gets toggled, with a boolean indicating its new value as its
1586	argument.	1905	first argument.
1587		1906
1588	=cut	1907	=cut
1589		1908
1590	sub add_toggle {	1909	sub add_toggle {
1591	my ($self, $text, $cb, $value) = @_;	1910	my ($self, $text, $value, $cb) = @_;
1592		1911
1593	my $item; $item = {	1912	my $item; $item = {
1594	type => "button",	1913	type => "button",
1595	text => " $text",	1914	text => " $text",
1596	value => $value,	1915	value => $value,
…		…
1615	my $env = $self->{term}->env;	1934	my $env = $self->{term}->env;
1616	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.	1935	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1617	delete $env->{LC_ALL};	1936	delete $env->{LC_ALL};
1618	$env->{LC_CTYPE} = $self->{term}->locale;	1937	$env->{LC_CTYPE} = $self->{term}->locale;
1619		1938
1620	urxvt::term->new ($env, "popup",	1939	my $term = urxvt::term->new (
		1940	$env, "popup",
1621	"--perl-lib" => "", "--perl-ext-common" => "",	1941	"--perl-lib" => "", "--perl-ext-common" => "",
1622	"-pty-fd" => -1, "-sl" => 0,	1942	"-pty-fd" => -1, "-sl" => 0,
1623	"-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",	1943	"-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1624	"--transient-for" => $self->{term}->parent,	1944	"--transient-for" => $self->{term}->parent,
1625	"-display" => $self->{term}->display_id,	1945	"-display" => $self->{term}->display_id,
1626	"-pe" => "urxvt-popup")	1946	"-pe" => "urxvt-popup",
1627	or die "unable to create popup window\n";	1947	) or die "unable to create popup window\n";
		1948
		1949	unless (delete $term->{urxvt_popup_init_done}) {
		1950	$term->ungrab;
		1951	$term->destroy;
		1952	die "unable to initialise popup window\n";
		1953	}
1628	}	1954	}
1629		1955
1630	sub DESTROY {	1956	sub DESTROY {
1631	my ($self) = @_;	1957	my ($self) = @_;
1632		1958
1633	delete $self->{term}{_destroy}{$self};	1959	delete $self->{term}{_destroy}{$self};
1634	$self->{term}->ungrab;	1960	$self->{term}->ungrab;
1635	}	1961	}
1636		1962
1637	=back	1963	=back
		1964
		1965	=cut
		1966
		1967	package urxvt::watcher;
1638		1968
1639	=head2 The C<urxvt::timer> Class	1969	=head2 The C<urxvt::timer> Class
1640		1970
1641	This class implements timer watchers/events. Time is represented as a	1971	This class implements timer watchers/events. Time is represented as a
1642	fractional number of seconds since the epoch. Example:	1972	fractional number of seconds since the epoch. Example:
…		…
1646	->new	1976	->new
1647	->interval (1)	1977	->interval (1)
1648	->cb (sub {	1978	->cb (sub {
1649	$term->{overlay}->set (0, 0,	1979	$term->{overlay}->set (0, 0,
1650	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);	1980	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
1651	});	1981	});
1652		1982
1653	=over 4	1983	=over 4
1654		1984
1655	=item $timer = new urxvt::timer	1985	=item $timer = new urxvt::timer
1656		1986
…		…
1659		1989
1660	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })	1990	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })
1661		1991
1662	Set the callback to be called when the timer triggers.	1992	Set the callback to be called when the timer triggers.
1663		1993
1664	=item $tstamp = $timer->at
1665
1666	Return the time this watcher will fire next.
1667
1668	=item $timer = $timer->set ($tstamp)	1994	=item $timer = $timer->set ($tstamp[, $interval])
1669		1995
1670	Set the time the event is generated to $tstamp.	1996	Set the time the event is generated to $tstamp (and optionally specifies a
		1997	new $interval).
1671		1998
1672	=item $timer = $timer->interval ($interval)	1999	=item $timer = $timer->interval ($interval)
1673		2000
1674	Normally (and when C<$interval> is C<0>), the timer will automatically	2001	By default (and when C<$interval> is C<0>), the timer will automatically
1675	stop after it has fired once. If C<$interval> is non-zero, then the timer	2002	stop after it has fired once. If C<$interval> is non-zero, then the timer
1676	is automatically rescheduled at the given intervals.	2003	is automatically rescheduled at the given intervals.
1677		2004
1678	=item $timer = $timer->start	2005	=item $timer = $timer->start
1679		2006
1680	Start the timer.	2007	Start the timer.
1681		2008
1682	=item $timer = $timer->start ($tstamp)	2009	=item $timer = $timer->start ($tstamp[, $interval])
1683		2010
1684	Set the event trigger time to C<$tstamp> and start the timer.	2011	Set the event trigger time to C<$tstamp> and start the timer. Optionally
		2012	also replaces the interval.
1685		2013
1686	=item $timer = $timer->after ($delay)	2014	=item $timer = $timer->after ($delay[, $interval])
1687		2015
1688	Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.	2016	Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1689		2017
1690	=item $timer = $timer->stop	2018	=item $timer = $timer->stop
1691		2019
…		…
1699		2027
1700	$term->{socket} = ...	2028	$term->{socket} = ...
1701	$term->{iow} = urxvt::iow	2029	$term->{iow} = urxvt::iow
1702	->new	2030	->new
1703	->fd (fileno $term->{socket})	2031	->fd (fileno $term->{socket})
1704	->events (urxvt::EVENT_READ)	2032	->events (urxvt::EV_READ)
1705	->start	2033	->start
1706	->cb (sub {	2034	->cb (sub {
1707	my ($iow, $revents) = @_;	2035	my ($iow, $revents) = @_;
1708	# $revents must be 1 here, no need to check	2036	# $revents must be 1 here, no need to check
1709	sysread $term->{socket}, my $buf, 8192	2037	sysread $term->{socket}, my $buf, 8192
…		…
1722	Set the callback to be called when io events are triggered. C<$reventmask>	2050	Set the callback to be called when io events are triggered. C<$reventmask>
1723	is a bitset as described in the C<events> method.	2051	is a bitset as described in the C<events> method.
1724		2052
1725	=item $iow = $iow->fd ($fd)	2053	=item $iow = $iow->fd ($fd)
1726		2054
1727	Set the filedescriptor (not handle) to watch.	2055	Set the file descriptor (not handle) to watch.
1728		2056
1729	=item $iow = $iow->events ($eventmask)	2057	=item $iow = $iow->events ($eventmask)
1730		2058
1731	Set the event mask to watch. The only allowed values are	2059	Set the event mask to watch. The only allowed values are
1732	C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed	2060	C<urxvt::EV_READ> and C<urxvt::EV_WRITE>, which might be ORed
1733	together, or C<urxvt::EVENT_NONE>.	2061	together, or C<urxvt::EV_NONE>.
1734		2062
1735	=item $iow = $iow->start	2063	=item $iow = $iow->start
1736		2064
1737	Start watching for requested events on the given handle.	2065	Start watching for requested events on the given handle.
1738		2066
1739	=item $iow = $iow->stop	2067	=item $iow = $iow->stop
1740		2068
1741	Stop watching for events on the given filehandle.	2069	Stop watching for events on the given file handle.
		2070
		2071	=back
		2072
		2073	=head2 The C<urxvt::iw> Class
		2074
		2075	This class implements idle watchers, that get called automatically when
		2076	the process is idle. They should return as fast as possible, after doing
		2077	some useful work.
		2078
		2079	=over 4
		2080
		2081	=item $iw = new urxvt::iw
		2082
		2083	Create a new idle watcher object in stopped state.
		2084
		2085	=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
		2086
		2087	Set the callback to be called when the watcher triggers.
		2088
		2089	=item $timer = $timer->start
		2090
		2091	Start the watcher.
		2092
		2093	=item $timer = $timer->stop
		2094
		2095	Stop the watcher.
		2096
		2097	=back
		2098
		2099	=head2 The C<urxvt::pw> Class
		2100
		2101	This class implements process watchers. They create an event whenever a
		2102	process exits, after which they stop automatically.
		2103
		2104	my $pid = fork;
		2105	...
		2106	$term->{pw} = urxvt::pw
		2107	->new
		2108	->start ($pid)
		2109	->cb (sub {
		2110	my ($pw, $exit_status) = @_;
		2111	...
		2112	});
		2113
		2114	=over 4
		2115
		2116	=item $pw = new urxvt::pw
		2117
		2118	Create a new process watcher in stopped state.
		2119
		2120	=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
		2121
		2122	Set the callback to be called when the timer triggers.
		2123
		2124	=item $pw = $timer->start ($pid)
		2125
		2126	Tells the watcher to start watching for process C<$pid>.
		2127
		2128	=item $pw = $pw->stop
		2129
		2130	Stop the watcher.
1742		2131
1743	=back	2132	=back
1744		2133
1745	=head1 ENVIRONMENT	2134	=head1 ENVIRONMENT
1746		2135
…		…
1755		2144
1756	=item >= 3 - script loading and management	2145	=item >= 3 - script loading and management
1757		2146
1758	=item >=10 - all called hooks	2147	=item >=10 - all called hooks
1759		2148
1760	=item >=11 - hook reutrn values	2149	=item >=11 - hook return values
1761		2150
1762	=back	2151	=back
1763		2152
1764	=head1 AUTHOR	2153	=head1 AUTHOR
1765		2154
1766	Marc Lehmann <pcg@goof.com>	2155	Marc Lehmann <schmorp@schmorp.de>
1767	http://software.schmorp.de/pkg/rxvt-unicode	2156	http://software.schmorp.de/pkg/rxvt-unicode
1768		2157
1769	=cut	2158	=cut
1770		2159
1771	1	2160	1
		2161
		2162	# vim: sw=3:

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