[ViewVC] Diff of: cvs/rxvt-unicode/src/urxvt.pm

Comparing rxvt-unicode/src/urxvt.pm (file contents):
Revision 1.1 by root, Mon Jan 2 15:35:43 2006 UTC vs.
Revision 1.45 by root, Sat Jan 7 20:23:52 2006 UTC

…		…
		1	=encoding utf8
		2
1	=head1 NAME	3	=head1 NAME
2		4
3	urxvt - rxvt-unicode's embedded perl interpreter	5	@@RXVT_NAME@@perl - rxvt-unicode's embedded perl interpreter
4		6
5	=head1 SYNOPSIS	7	=head1 SYNOPSIS
6		8
7	Put your scripts into $LIBDIR/perl-init/, they will be loaded automatically.	9	# create a file grab_test in $HOME:
8
9	Each script will only be loaded once, even in urxvtd, and will be valid
10	globally.
11
12	Scripts are evaluated in a 'use strict' and 'use utf8' environment, and
13	thus must be written in utf-8.
14		10
15	sub on_sel_grab {	11	sub on_sel_grab {
16	warn "you selected ", $_[0]->selection;	12	warn "you selected ", $_[0]->selection;
		13	()
17	}	14	}
18		15
19	1	16	# start a @@RXVT_NAME@@ using it:
		17
		18	@@RXVT_NAME@@ --perl-lib $HOME -pe grab_test
20		19
21	=head1 DESCRIPTION	20	=head1 DESCRIPTION
22		21
		22	Everytime a terminal object gets created, extension scripts specified via
		23	the C<perl> resource are loaded and associated with it.
		24
		25	Scripts are compiled in a 'use strict' and 'use utf8' environment, and
		26	thus must be encoded as UTF-8.
		27
		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.
		30
		31	=head2 Prepackaged Extensions
		32
		33	This section describes the extensiosn delivered with this version. You can
		34	find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.
		35
		36	You can activate them like this:
		37
		38	@@RXVT_NAME@@ -pe <extensionname>
		39
		40	=over 4
		41
		42	=item selection
		43
		44	Intelligent selection. This extension tries to be more intelligent when
		45	the user extends selections (double-click). Right now, it tries to select
		46	urls and complete shell-quoted arguments, which is very convenient, too,
		47	if your F<ls> supports C<--quoting-style=shell>.
		48
		49	It also offers the following bindable event:
		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 mark-urls
		66
		67	Uses per-line display filtering (C<on_line_update>) to underline urls.
		68
		69	=item block-graphics-to-ascii
		70
		71	A not very useful example of filtering all text output to the terminal,
		72	by replacing all line-drawing characters (U+2500 .. U+259F) by a
		73	similar-looking ascii character.
		74
		75	=item example-refresh-hooks
		76
		77	Displays a very simple digital clock in the upper right corner of the
		78	window. Illustrates overwriting the refresh callbacks to create your own
		79	overlays or changes.
		80
		81	=back
		82
		83	=head2 General API Considerations
		84
		85	All objects (such as terminals, time watchers etc.) are typical
		86	reference-to-hash objects. The hash can be used to store anything you
		87	like. All members starting with an underscore (such as C<_ptr> or
		88	C<_hook>) are reserved for internal uses and B<MUST NOT> be accessed or
		89	modified).
		90
		91	When objects are destroyed on the C++ side, the perl object hashes are
		92	emptied, so its best to store related objects such as time watchers and
		93	the like inside the terminal object so they get destroyed as soon as the
		94	terminal is destroyed.
		95
		96	Argument names also often indicate the type of a parameter. Here are some
		97	hints on what they mean:
		98
		99	=over 4
		100
		101	=item $text
		102
		103	Rxvt-unicodes special way of encoding text, where one "unicode" character
		104	always represents one screen cell. See L<row_t> for a discussion of this format.
		105
		106	=item $string
		107
		108	A perl text string, with an emphasis on I<text>. It can store all unicode
		109	characters and is to be distinguished with text encoded in a specific
		110	encoding (often locale-specific) and binary data.
		111
		112	=item $octets
		113
		114	Either binary data or - more common - a text string encoded in a
		115	locale-specific way.
		116
		117	=back
		118
23	=head2 Hooks	119	=head2 Hooks
24		120
25	The following subroutines can be declared in loaded scripts, and will be called	121	The following subroutines can be declared in extension files, and will be
26	whenever the relevant event happens.	122	called whenever the relevant event happens.
		123
		124	The first argument passed to them is an object private to each terminal
		125	and extension package. You can call all C<urxvt::term> methods on it, but
		126	its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
		127	object that is shared between all packages is stored in the C<term>
		128	member. It is, however, blessed intot he package of the extension script,
		129	so for all practical purposes you can treat an extension script as a class.
27		130
28	All of them must return a boolean value. If it is true, then the event	131	All of them must return a boolean value. If it is true, then the event
29	counts as being I<consumed>, and the invocation of other hooks is skipped,	132	counts as being I<consumed>, and the invocation of other hooks is skipped,
30	and the relevant action might not be carried out by the C++ code.	133	and the relevant action might not be carried out by the C++ code.
31		134
34	=over 4	137	=over 4
35		138
36	=item on_init $term	139	=item on_init $term
37		140
38	Called after a new terminal object has been initialized, but before	141	Called after a new terminal object has been initialized, but before
39	windows are created or the command gets run.	142	windows are created or the command gets run. Most methods are unsafe to
		143	call or deliver senseless data, as terminal size and other characteristics
		144	have not yet been determined. You can safely query and change resources,
		145	though.
40		146
41	=item on_reset $term	147	=item on_reset $term
42		148
43	Called after the screen is "reset" for any reason, such as resizing or	149	Called after the screen is "reset" for any reason, such as resizing or
44	control sequences. Here is where you can react on changes to size-related	150	control sequences. Here is where you can react on changes to size-related
…		…
64	requested from the server. The selection text can be queried and changed	170	requested from the server. The selection text can be queried and changed
65	by calling C<< $term->selection >>.	171	by calling C<< $term->selection >>.
66		172
67	Returning a true value aborts selection grabbing. It will still be hilighted.	173	Returning a true value aborts selection grabbing. It will still be hilighted.
68		174
69	=item on_focus_in $term	175	=item on_sel_extend $term
70		176
71	Called whenever the window gets the keyboard focus, before urxvt does	177	Called whenever the user tries to extend the selection (e.g. with a double
72	focus in processing.	178	click) and is either supposed to return false (normal operation), or
73		179	should extend the selection itelf and return true to suppress the built-in
74	=item on_focus_out $term
75
76	Called wheneever the window loses keyboard focus, before urxvt does focus
77	out processing.	180	processing.
		181
		182	See the F<selection> example extension.
78		183
79	=item on_view_change $term, $offset	184	=item on_view_change $term, $offset
80		185
81	Called whenever the view offset changes, i..e the user or program	186	Called whenever the view offset changes, i..e the user or program
82	scrolls. Offset C<0> means display the normal terminal, positive values	187	scrolls. Offset C<0> means display the normal terminal, positive values
…		…
93	number of lines that will be in the scrollback buffer.	198	number of lines that will be in the scrollback buffer.
94		199
95	=item on_tty_activity $term NYI	200	=item on_tty_activity $term NYI
96		201
97	Called whenever the program(s) running in the urxvt window send output.	202	Called whenever the program(s) running in the urxvt window send output.
		203
		204	=item on_osc_seq $term, $string
		205
		206	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
		207	operating system command) is processed. Cursor position and other state
		208	information is up-to-date when this happens. For interoperability, the
		209	string should start with the extension name and a colon, to distinguish
		210	it from commands for other extensions, and this might be enforced in the
		211	future.
		212
		213	Be careful not ever to trust (in a security sense) the data you receive,
		214	as its source can not easily be controleld (e-mail content, messages from
		215	other users on the same system etc.).
		216
		217	=item on_add_lines $term, $string
		218
		219	Called whenever text is about to be output, with the text as argument. You
		220	can filter/change and output the text yourself by returning a true value
		221	and calling C<< $term->scr_add_lines >> yourself. Please note that this
		222	might be very slow, however, as your hook is called for B<all> text being
		223	output.
		224
		225	=item on_line_update $term, $row
		226
		227	Called whenever a line was updated or changed. Can be used to filter
		228	screen output (e.g. underline urls or other useless stuff). Only lines
		229	that are being shown will be filtered, and, due to performance reasons,
		230	not always immediately.
		231
		232	The row number is always the topmost row of the line if the line spans
		233	multiple rows.
		234
		235	Please note that, if you change the line, then the hook might get called
		236	later with the already-modified line (e.g. if unrelated parts change), so
		237	you cannot just toggle rendition bits, but only set them.
98		238
99	=item on_refresh_begin $term	239	=item on_refresh_begin $term
100		240
101	Called just before the screen gets redrawn. Can be used for overlay	241	Called just before the screen gets redrawn. Can be used for overlay
102	or similar effects by modify terminal contents in refresh_begin, and	242	or similar effects by modify terminal contents in refresh_begin, and
…		…
105		245
106	=item on_refresh_end $term	246	=item on_refresh_end $term
107		247
108	Called just after the screen gets redrawn. See C<on_refresh_begin>.	248	Called just after the screen gets redrawn. See C<on_refresh_begin>.
109		249
		250	=item on_keyboard_command $term, $string
		251
		252	Called whenever the user presses a key combination that has a
		253	C<perl:string> action bound to it (see description of the B<keysym>
		254	resource in the @@RXVT_NAME@@(1) manpage).
		255
		256	=item on_focus_in $term
		257
		258	Called whenever the window gets the keyboard focus, before rxvt-unicode
		259	does focus in processing.
		260
		261	=item on_focus_out $term
		262
		263	Called wheneever the window loses keyboard focus, before rxvt-unicode does
		264	focus out processing.
		265
		266	=item on_key_press $term, $event, $octets
		267
		268	=item on_key_release $term, $event
		269
		270	=item on_button_press $term, $event
		271
		272	=item on_button_release $term, $event
		273
		274	=item on_motion_notify $term, $event
		275
		276	=item on_map_notify $term, $event
		277
		278	=item on_unmap_notify $term, $event
		279
		280	Called whenever the corresponding X event is received for the terminal If
		281	the hook returns true, then the even will be ignored by rxvt-unicode.
		282
		283	The event is a hash with most values as named by Xlib (see the XEvent
		284	manpage), with the additional members C<row> and C<col>, which are the row
		285	and column under the mouse cursor.
		286
		287	C<on_key_press> additionally receives the string rxvt-unicode would
		288	output, if any, in locale-specific encoding.
		289
		290	subwindow.
		291
		292	=back
		293
		294	=head2 Variables in the C<urxvt> Package
		295
		296	=over 4
		297
		298	=item $urxvt::TERM
		299
		300	The current terminal. This variable stores the current C<urxvt::term>
		301	object, whenever a callback/hook is executing.
		302
110	=back	303	=back
111		304
112	=head2 Functions in the C<urxvt> Package	305	=head2 Functions in the C<urxvt> Package
113		306
114	=over 4	307	=over 4
		308
		309	=item $term = new urxvt [arg...]
		310
		311	Creates a new terminal, very similar as if you had started it with
		312	C<system $binfile, arg...>. Croaks (and probably outputs an error message)
		313	if the new instance couldn't be created. Returns C<undef> if the new
		314	instance didn't initialise perl, and the terminal object otherwise. The
		315	C<init> and C<start> hooks will be called during the call.
115		316
116	=item urxvt::fatal $errormessage	317	=item urxvt::fatal $errormessage
117		318
118	Fatally aborts execution with the given error message. Avoid at all	319	Fatally aborts execution with the given error message. Avoid at all
119	costs! The only time this is acceptable is when the terminal process	320	costs! The only time this is acceptable is when the terminal process
120	starts up.	321	starts up.
121		322
122	=item urxvt::warn $string	323	=item urxvt::warn $string
123		324
124	Calls C<rxvt_warn> witht eh given string which should not include a	325	Calls C<rxvt_warn> with the given string which should not include a
125	newline. The module also overwrites the C<warn> builtin with a function	326	newline. The module also overwrites the C<warn> builtin with a function
126	that calls this function.	327	that calls this function.
127		328
128	Using this function has the advantage that its output ends up in the	329	Using this function has the advantage that its output ends up in the
129	correct place, e.g. on stderr of the connecting urxvtc client.	330	correct place, e.g. on stderr of the connecting urxvtc client.
130		331
131	=item $cellwidth = urxvt::wcswidth $string
132
133	Returns the number of screen-cells this string would need. Correctly
134	accounts for wide and combining characters.
135
136	=item $time = urxvt::NOW	332	=item $time = urxvt::NOW
137		333
138	Returns the "current time" (as per the event loop).	334	Returns the "current time" (as per the event loop).
139		335
		336	=back
		337
		338	=head2 RENDITION
		339
		340	Rendition bitsets contain information about colour, font, font styles and
		341	similar information for each screen cell.
		342
		343	The following "macros" deal with changes in rendition sets. You should
		344	never just create a bitset, you should always modify an existing one,
		345	as they contain important information required for correct operation of
		346	rxvt-unicode.
		347
		348	=over 4
		349
		350	=item $rend = urxvt::DEFAULT_RSTYLE
		351
		352	Returns the default rendition, as used when the terminal is starting up or
		353	being reset. Useful as a base to start when creating renditions.
		354
		355	=item $rend = urxvt::OVERLAY_RSTYLE
		356
		357	Return the rendition mask used for overlays by default.
		358
		359	=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline
		360
		361	Return the bit that enabled bold, italic, blink, reverse-video and
		362	underline, respectively. To enable such a style, just logically OR it into
		363	the bitset.
		364
		365	=item $foreground = urxvt::GET_BASEFG $rend
		366
		367	=item $background = urxvt::GET_BASEBG $rend
		368
		369	Return the foreground/background colour index, respectively.
		370
		371	=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)
		372
		373	=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)
		374
		375	Replace the foreground/background colour in the rendition mask with the
		376	specified one.
		377
		378	=item $value = urxvt::GET_CUSTOM ($rend)
		379
		380	Return the "custom" value: Every rendition has 5 bits for use by
		381	extensions. They can be set and changed as you like and are initially
		382	zero.
		383
		384	=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)
		385
		386	Change the custom value.
		387
		388	=back
		389
140	=cut	390	=cut
141		391
142	package urxvt;	392	package urxvt;
143		393
144	use strict;	394	use strict;
		395	use Scalar::Util ();
145		396
146	our $term;	397	our $TERM;
147	our @HOOKNAME;	398	our @HOOKNAME;
148	our $LIBDIR;	399	our $LIBDIR;
149		400
150	BEGIN {	401	BEGIN {
151	urxvt->bootstrap;	402	urxvt->bootstrap;
…		…
157	unless $msg =~ /\n$/;	408	unless $msg =~ /\n$/;
158	urxvt::warn ($msg);	409	urxvt::warn ($msg);
159	};	410	};
160	}	411	}
161		412
		413	my @hook_count;
162	my $verbosity = $ENV{URXVT_PERL_VERBOSITY} \|\| 10;	414	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
163		415
164	sub verbose {	416	sub verbose {
165	my ($level, $msg) = @_;	417	my ($level, $msg) = @_;
166	warn "$msg\n"; #d#	418	warn "$msg\n" if $level <= $verbosity;
167	}
168
169	my @invoke_cb;
170
171	# called by the rxvt core
172	sub invoke {
173	local $term = shift;
174	my $htype = shift;
175
176	my $cb = $invoke_cb[$htype];
177
178	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $term, @_) . ")"
179	if $verbosity >= 10;
180
181	while (my ($k, $v) = each %$cb) {
182	return 1 if $v->($term, @_);
183	}
184
185	0
186	}	419	}
187		420
188	# find on_xxx subs in the package and register them	421	# find on_xxx subs in the package and register them
189	# as hooks	422	# as hooks
190	sub register_package($) {	423	sub register_package($) {
191	my ($pkg) = @_;	424	my ($pkg) = @_;
192		425
193	for my $hook (0.. $#HOOKNAME) {	426	for my $htype (0.. $#HOOKNAME) {
194	my $name = $HOOKNAME[$hook];	427	my $name = $HOOKNAME[$htype];
195		428
196	my $ref = $pkg->can ("on_" . lc $name)	429	my $ref = $pkg->can ("on_" . lc $name)
197	or next;	430	or next;
198		431
199	$invoke_cb[$hook]{$ref*1} = $ref;	432	$TERM->{_hook}[$htype]{$pkg} = $ref;
		433	$hook_count[$htype]++
200	set_should_invoke $hook, 1;	434	or set_should_invoke $htype, 1;
201	}	435	}
202	}	436	}
203		437
204	my $script_pkg = "script0000";	438	my $extension_pkg = "extension0000";
205	my %script_pkg;	439	my %extension_pkg;
206		440
207	# load a single script into its own package, once only	441	# load a single script into its own package, once only
208	sub load_script($) {	442	sub extension_package($) {
209	my ($path) = @_;	443	my ($path) = @_;
210		444
211	$script_pkg{$path} \|\|= do {	445	$extension_pkg{$path} \|\|= do {
212	my $pkg = $script_pkg++;	446	my $pkg = "urxvt::" . ($extension_pkg++);
		447
213	verbose 3, "loading script '$path' into package '$pkg'";	448	verbose 3, "loading extension '$path' into package '$pkg'";
214		449
215	open my $fh, "<:raw", $path	450	open my $fh, "<:raw", $path
216	or die "$path: $!";	451	or die "$path: $!";
217		452
218	eval "package $pkg; use strict; use utf8;\n"	453	my $source = "package $pkg; use strict; use utf8;\n"
		454	. "use base urxvt::term::proxy::;\n"
219	. "#line 1 \"$path\"\n"	455	. "#line 1 \"$path\"\n{\n"
220	. do { local $/; <$fh> }	456	. (do { local $/; <$fh> })
		457	. "\n};\n1";
		458
221	or die "$path: $@";	459	eval $source or die "$path: $@";
222
223	register_package $pkg;
224		460
225	$pkg	461	$pkg
226	};	462	}
227	}	463	}
228		464
229	load_script $_ for grep -f $_, <$LIBDIR/perl-init/*>;	465	our $retval; # return value for urxvt
230		466
		467	# called by the rxvt core
		468	sub invoke {
		469	local $TERM = shift;
		470	my $htype = shift;
231		471
232	=back	472	if ($htype == 0) { # INIT
		473	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
		474
		475	for my $ext (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
		476	my @files = grep -f $_, map "$_/$ext", @dirs;
		477
		478	if (@files) {
		479	register_package extension_package $files[0];
		480	} else {
		481	warn "perl extension '$ext' not found in perl library search path\n";
		482	}
		483	}
		484	}
		485
		486	$retval = undef;
		487
		488	if (my $cb = $TERM->{_hook}[$htype]) {
		489	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
		490	if $verbosity >= 10;
		491
		492	keys %$cb;
		493
		494	while (my ($pkg, $cb) = each %$cb) {
		495	eval {
		496	$retval = $cb->(
		497	$TERM->{_pkg}{$pkg} \|\|= do {
		498	my $proxy = bless { }, $pkg;
		499	Scalar::Util::weaken ($proxy->{term} = $TERM);
		500	$proxy
		501	},
		502	@_,
		503	) and last;
		504	};
		505	warn $@ if $@;#d#
		506	}
		507	}
		508
		509	if ($htype == 1) { # DESTROY
		510	# remove hooks if unused
		511	if (my $hook = $TERM->{_hook}) {
		512	for my $htype (0..$#$hook) {
		513	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] \|\| {} }
		514	or set_should_invoke $htype, 0;
		515	}
		516	}
		517
		518	# clear package objects
		519	%$_ = () for values %{ $TERM->{_pkg} };
		520
		521	# clear package
		522	%$TERM = ();
		523	}
		524
		525	$retval
		526	}
		527
		528	sub urxvt::term::proxy::AUTOLOAD {
		529	$urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/
		530	or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";
		531
		532	eval qq{
		533	sub $urxvt::term::proxy::AUTOLOAD {
		534	my \$proxy = shift;
		535	\$proxy->{term}->$1 (\@_)
		536	}
		537	1
		538	} or die "FATAL: unable to compile method forwarder: $@";
		539
		540	goto &$urxvt::term::proxy::AUTOLOAD;
		541	}
		542
		543	sub urxvt::destroy_hook::DESTROY {
		544	${$_[0]}->();
		545	}
		546
		547	sub urxvt::destroy_hook(&) {
		548	bless \shift, urxvt::destroy_hook::
		549	}
233		550
234	=head2 The C<urxvt::term> Class	551	=head2 The C<urxvt::term> Class
235		552
236	=over 4	553	=over 4
		554
		555	=item $term->destroy
		556
		557	Destroy the terminal object (close the window, free resources etc.).
		558
		559	=item $value = $term->resource ($name[, $newval])
		560
		561	Returns the current resource value associated with a given name and
		562	optionally sets a new value. Setting values is most useful in the C<init>
		563	hook. Unset resources are returned and accepted as C<undef>.
		564
		565	The new value must be properly encoded to a suitable character encoding
		566	before passing it to this method. Similarly, the returned value may need
		567	to be converted from the used encoding to text.
		568
		569	Resource names are as defined in F<src/rsinc.h>. Colours can be specified
		570	as resource names of the form C<< color+<index> >>, e.g. C<color+5>. (will
		571	likely change).
		572
		573	Please note that resource strings will currently only be freed when the
		574	terminal is destroyed, so changing options frequently will eat memory.
		575
		576	Here is a a likely non-exhaustive list of resource names, not all of which
		577	are supported in every build, please see the source to see the actual
		578	list:
		579
		580	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
		581	borderLess color cursorBlink cursorUnderline cutchars delete_key
		582	display_name embed ext_bwidth fade font geometry hold iconName
		583	imFont imLocale inputMethod insecure int_bwidth intensityStyles
		584	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier
		585	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2
		586	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd
		587	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating
		588	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput
		589	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle
		590	shade term_name title transparent transparent_all tripleclickwords
		591	utmpInhibit visualBell
		592
		593	=cut
		594
		595	sub urxvt::term::resource($$;$) {
		596	my ($self, $name) = (shift, shift);
		597	unshift @_, $self, $name, ($name =~ s/\s\+\s(\d+)$// ? $1 : 0);
		598	&urxvt::term::_resource
		599	}
		600
		601	=item $rend = $term->rstyle ([$new_rstyle])
		602
		603	Return and optionally change the current rendition. Text that is output by
		604	the terminal application will use this style.
		605
		606	=item ($row, $col) = $term->screen_cur ([$row, $col])
		607
		608	Return the current coordinates of the text cursor position and optionally
		609	set it (which is usually bad as applications don't expect that).
237		610
238	=item ($row, $col) = $term->selection_mark ([$row, $col])	611	=item ($row, $col) = $term->selection_mark ([$row, $col])
239		612
240	=item ($row, $col) = $term->selection_beg ([$row, $col])	613	=item ($row, $col) = $term->selection_beg ([$row, $col])
241		614
…		…
251		624
252	=item $oldtext = $term->selection ([$newtext])	625	=item $oldtext = $term->selection ([$newtext])
253		626
254	Return the current selection text and optionally replace it by C<$newtext>.	627	Return the current selection text and optionally replace it by C<$newtext>.
255		628
256	=item $term->scr_overlay ($x, $y, $text)	629	#=item $term->overlay ($x, $y, $text)
257		630	#
258	Create a simple multi-line overlay box. See the next method for details.	631	#Create a simple multi-line overlay box. See the next method for details.
		632	#
		633	#=cut
		634	#
		635	#sub urxvt::term::scr_overlay {
		636	# my ($self, $x, $y, $text) = @_;
		637	#
		638	# my @lines = split /\n/, $text;
		639	#
		640	# my $w = 0;
		641	# for (map $self->strwidth ($_), @lines) {
		642	# $w = $_ if $w < $_;
		643	# }
		644	#
		645	# $self->scr_overlay_new ($x, $y, $w, scalar @lines);
		646	# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;
		647	#}
		648
		649	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
		650
		651	Create a new (empty) overlay at the given position with the given
		652	width/height. C<$rstyle> defines the initial rendition style
		653	(default: C<OVERLAY_RSTYLE>).
		654
		655	If C<$border> is C<2> (default), then a decorative border will be put
		656	around the box.
		657
		658	If either C<$x> or C<$y> is negative, then this is counted from the
		659	right/bottom side, respectively.
		660
		661	This method returns an urxvt::overlay object. The overlay will be visible
		662	as long as the perl object is referenced.
		663
		664	The methods currently supported on C<urxvt::overlay> objects are:
		665
		666	=over 4
		667
		668	=item $overlay->set ($x, $y, $text, $rend)
		669
		670	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts
		671	text in rxvt-unicode's special encoding and an array of rendition values
		672	at a specific position inside the overlay.
		673
		674	=item $overlay->hide
		675
		676	If visible, hide the overlay, but do not destroy it.
		677
		678	=item $overlay->show
		679
		680	If hidden, display the overlay again.
		681
		682	=back
		683
		684	=item $popup = $term->popup ($event)
		685
		686	Creates a new C<urxvt::popup> object that implements a popup menu. The
		687	C<$event> I<must> be the event causing the menu to pop up (a button event,
		688	currently).
259		689
260	=cut	690	=cut
261		691
262	sub urxvt::term::scr_overlay {	692	sub urxvt::term::popup {
263	my ($self, $x, $y, $text) = @_;	693	my ($self, $event) = @_;
264		694
265	my @lines = split /\n/, $text;	695	$self->grab ($event->{time}, 1)
		696	or return;
266		697
267	my $w = 0;	698	my $popup = bless {
268	for (map urxvt::wcswidth $_, @lines) {	699	term => $self,
269	$w = $_ if $w < $_;	700	event => $event,
		701	}, urxvt::popup::;
		702
		703	Scalar::Util::weaken $popup->{term};
		704
		705	$self->{_destroy}{$popup} = urxvt::destroy_hook { $popup->{popup}->destroy };
		706	Scalar::Util::weaken $self->{_destroy}{$popup};
		707
		708	$popup
		709	}
		710
		711	=item $cellwidth = $term->strwidth ($string)
		712
		713	Returns the number of screen-cells this string would need. Correctly
		714	accounts for wide and combining characters.
		715
		716	=item $octets = $term->locale_encode ($string)
		717
		718	Convert the given text string into the corresponding locale encoding.
		719
		720	=item $string = $term->locale_decode ($octets)
		721
		722	Convert the given locale-encoded octets into a perl string.
		723
		724	=item $term->scr_add_lines ($string)
		725
		726	Write the given text string to the screen, as if output by the application
		727	running inside the terminal. It may not contain command sequences (escape
		728	codes), but is free to use line feeds, carriage returns and tabs. The
		729	string is a normal text string, not in locale-dependent encoding.
		730
		731	Normally its not a good idea to use this function, as programs might be
		732	confused by changes in cursor position or scrolling. Its useful inside a
		733	C<on_add_lines> hook, though.
		734
		735	=item $term->cmd_parse ($octets)
		736
		737	Similar to C<scr_add_lines>, but the argument must be in the
		738	locale-specific encoding of the terminal and can contain command sequences
		739	(escape codes) that will be interpreted.
		740
		741	=item $term->tt_write ($octets)
		742
		743	Write the octets given in C<$data> to the tty (i.e. as program input). To
		744	pass characters instead of octets, you should convert your strings first
		745	to the locale-specific encoding using C<< $term->locale_encode >>.
		746
		747	=item $windowid = $term->parent
		748
		749	Return the window id of the toplevel window.
		750
		751	=item $windowid = $term->vt
		752
		753	Return the window id of the terminal window.
		754
		755	=item $window_width = $term->width
		756
		757	=item $window_height = $term->height
		758
		759	=item $font_width = $term->fwidth
		760
		761	=item $font_height = $term->fheight
		762
		763	=item $font_ascent = $term->fbase
		764
		765	=item $terminal_rows = $term->nrow
		766
		767	=item $terminal_columns = $term->ncol
		768
		769	=item $has_focus = $term->focus
		770
		771	=item $is_mapped = $term->mapped
		772
		773	=item $max_scrollback = $term->saveLines
		774
		775	=item $nrow_plus_saveLines = $term->total_rows
		776
		777	=item $lines_in_scrollback = $term->nsaved
		778
		779	Return various integers describing terminal characteristics.
		780
		781	=item $view_start = $term->view_start ([$newvalue])
		782
		783	Returns the negative row number of the topmost line. Minimum value is
		784	C<0>, which displays the normal terminal contents. Larger values scroll
		785	this many lines into the scrollback buffer.
		786
		787	=item $term->want_refresh
		788
		789	Requests a screen refresh. At the next opportunity, rxvt-unicode will
		790	compare the on-screen display with its stored representation. If they
		791	differ, it redraws the differences.
		792
		793	Used after changing terminal contents to display them.
		794
		795	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
		796
		797	Returns the text of the entire row with number C<$row_number>. Row C<0>
		798	is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost
		799	terminal line. The scrollback buffer starts at line C<-1> and extends to
		800	line C<< -$term->nsaved >>. Nothing will be returned if a nonexistent line
		801	is requested.
		802
		803	If C<$new_text> is specified, it will replace characters in the current
		804	line, starting at column C<$start_col> (default C<0>), which is useful
		805	to replace only parts of a line. The font index in the rendition will
		806	automatically be updated.
		807
		808	C<$text> is in a special encoding: tabs and wide characters that use more
		809	than one cell when displayed are padded with urxvt::NOCHAR characters
		810	(C<chr 65535>). Characters with combining characters and other characters
		811	that do not fit into the normal tetx encoding will be replaced with
		812	characters in the private use area.
		813
		814	You have to obey this encoding when changing text. The advantage is
		815	that C<substr> and similar functions work on screen cells and not on
		816	characters.
		817
		818	The methods C<< $term->special_encode >> and C<< $term->special_decode >>
		819	can be used to convert normal strings into this encoding and vice versa.
		820
		821	=item $rend = $term->ROW_r ($row_number[, $new_rend[, $start_col]])
		822
		823	Like C<< $term->ROW_t >>, but returns an arrayref with rendition
		824	bitsets. Rendition bitsets contain information about colour, font, font
		825	styles and similar information. See also C<< $term->ROW_t >>.
		826
		827	When setting rendition, the font mask will be ignored.
		828
		829	See the section on RENDITION, above.
		830
		831	=item $length = $term->ROW_l ($row_number[, $new_length])
		832
		833	Returns the number of screen cells that are in use ("the line
		834	length"). Unlike the urxvt core, this returns C<< $term->ncol >> if the
		835	line is joined with the following one.
		836
		837	=item $bool = $term->is_longer ($row_number)
		838
		839	Returns true if the row is part of a multiple-row logical "line" (i.e.
		840	joined with the following row), which means all characters are in use
		841	and it is continued on the next row (and possibly a continuation of the
		842	previous row(s)).
		843
		844	=item $line = $term->line ($row_number)
		845
		846	Create and return a new C<urxvt::line> object that stores information
		847	about the logical line that row C<$row_number> is part of. It supports the
		848	following methods:
		849
		850	=over 4
		851
		852	=item $text = $line->t ([$new_text])
		853
		854	Returns or replaces the full text of the line, similar to C<ROW_t>
		855
		856	=item $rend = $line->r ([$new_rend])
		857
		858	Returns or replaces the full rendition array of the line, similar to C<ROW_r>
		859
		860	=item $length = $line->l
		861
		862	Returns the length of the line in cells, similar to C<ROW_l>.
		863
		864	=item $rownum = $line->beg
		865
		866	=item $rownum = $line->end
		867
		868	Return the row number of the first/last row of the line, respectively.
		869
		870	=item $offset = $line->offset_of ($row, $col)
		871
		872	Returns the character offset of the given row\|col pair within the logical
		873	line.
		874
		875	=item ($row, $col) = $line->coord_of ($offset)
		876
		877	Translates a string offset into terminal coordinates again.
		878
		879	=back
		880
		881	=cut
		882
		883	sub urxvt::term::line {
		884	my ($self, $row) = @_;
		885
		886	my $maxrow = $self->nrow - 1;
		887
		888	my ($beg, $end) = ($row, $row);
		889
		890	--$beg while $self->ROW_is_longer ($beg - 1);
		891	++$end while $self->ROW_is_longer ($end) && $end < $maxrow;
		892
		893	bless {
		894	term => $self,
		895	beg => $beg,
		896	end => $end,
		897	ncol => $self->ncol,
		898	len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),
		899	}, urxvt::line::
		900	}
		901
		902	sub urxvt::line::t {
		903	my ($self) = @_;
		904
		905	if (@_ > 1)
		906	{
		907	$self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
		908	for $self->{beg} .. $self->{end};
		909	}
		910
		911	defined wantarray &&
		912	substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),
		913	0, $self->{len}
		914	}
		915
		916	sub urxvt::line::r {
		917	my ($self) = @_;
		918
		919	if (@_ > 1)
		920	{
		921	$self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
		922	for $self->{beg} .. $self->{end};
		923	}
		924
		925	if (defined wantarray) {
		926	my $rend = [
		927	map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}
		928	];
		929	$#$rend = $self->{len} - 1;
		930	return $rend;
270	}	931	}
271		932
272	$self->scr_overlay_new ($x, $y, $w, scalar @lines);	933	()
273	$self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;
274	}	934	}
275		935
276	=item $term->scr_overlay_new ($x, $y, $width, $height)	936	sub urxvt::line::beg { $_[0]{beg} }
		937	sub urxvt::line::end { $_[0]{end} }
		938	sub urxvt::line::l { $_[0]{len} }
277		939
278	Create a new (empty) overlay at the given position with the given	940	sub urxvt::line::offset_of {
279	width/height. A border will be put around the box. If either C<$x> or	941	my ($self, $row, $col) = @_;
280	C<$y> is negative, then this is counted from the right/bottom side,
281	respectively.
282		942
283	=item $term->scr_overlay_off	943	($row - $self->{beg}) * $self->{ncol} + $col
		944	}
284		945
285	Switch the overlay off again.	946	sub urxvt::line::coord_of {
		947	my ($self, $offset) = @_;
286		948
287	=item $term->scr_overlay_set_char ($x, $y, $char, $rend = OVERLAY_RSTYLE)	949	use integer;
288		950
289	Put a single character (specified numerically) at the given overlay	951	(
290	position.	952	$offset / $self->{ncol} + $self->{beg},
		953	$offset % $self->{ncol}
		954	)
		955	}
291		956
292	=item $term->scr_overlay_set ($x, $y, $text)	957	=item ($row, $col) = $line->coord_of ($offset)
		958	=item $text = $term->special_encode $string
293		959
294	Write a string at the given position into the overlay.	960	Converts a perl string into the special encoding used by rxvt-unicode,
		961	where one character corresponds to one screen cell. See
		962	C<< $term->ROW_t >> for details.
295		963
		964	=item $string = $term->special_decode $text
		965
		966	Converts rxvt-unicodes text reprsentation into a perl string. See
		967	C<< $term->ROW_t >> for details.
		968
296	=back	969	=back
		970
		971	=head2 The C<urxvt::popup> Class
		972
		973	=over 4
		974
		975	=cut
		976
		977	package urxvt::popup;
		978
		979	sub add_item {
		980	my ($self, $item) = @_;
		981
		982	push @{ $self->{item} }, $item;
		983	}
		984
		985	sub add_button {
		986	my ($self, $text, $cb) = @_;
		987
		988	$self->add_item ({ type => "button", text => "[ $text ]", activate => $cb });
		989	}
		990
		991	sub show {
		992	my ($self) = @_;
		993
		994	local $urxvt::popup::self = $self;
		995
		996	urxvt->new ("--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0,
		997	"--transient-for" => $self->{term}->parent,
		998	"-pe" => "urxvt_popup")
		999	or die "unable to create popup window\n";
		1000	}
		1001
		1002	sub DESTROY {
		1003	my ($self) = @_;
		1004
		1005	$self->{term}->ungrab;
		1006	}
297		1007
298	=head2 The C<urxvt::timer> Class	1008	=head2 The C<urxvt::timer> Class
299		1009
300	This class implements timer watchers/events. Time is represented as a	1010	This class implements timer watchers/events. Time is represented as a
301	fractional number of seconds since the epoch. Example:	1011	fractional number of seconds since the epoch. Example:
302		1012
303	# create a digital clock display in upper right corner	1013	$term->{overlay} = $term->overlay (-1, 0, 8, 1, urxvt::OVERLAY_RSTYLE, 0);
304	$term->{timer} = urxvt::timer	1014	$term->{timer} = urxvt::timer
305	->new	1015	->new
306	->start (urxvt::NOW)	1016	->interval (1)
307	->cb (sub {	1017	->cb (sub {
308	my ($timer) = @_;
309	my $time = $timer->at;
310	$timer->start ($time + 1);
311	$self->scr_overlay (-1, 0,	1018	$term->{overlay}->set (0, 0,
312	POSIX::strftime "%H:%M:%S", localtime $time);	1019	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
313	});	1020	});
314		1021
315	=over 4	1022	=over 4
316		1023
317	=item $timer = new urxvt::timer	1024	=item $timer = new urxvt::timer
318		1025
319	Create a new timer object in stopped state.	1026	Create a new timer object in started state. It is scheduled to fire
		1027	immediately.
320		1028
321	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })	1029	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })
322		1030
323	Set the callback to be called when the timer triggers.	1031	Set the callback to be called when the timer triggers.
324		1032
…		…
327	Return the time this watcher will fire next.	1035	Return the time this watcher will fire next.
328		1036
329	=item $timer = $timer->set ($tstamp)	1037	=item $timer = $timer->set ($tstamp)
330		1038
331	Set the time the event is generated to $tstamp.	1039	Set the time the event is generated to $tstamp.
		1040
		1041	=item $timer = $timer->interval ($interval)
		1042
		1043	Normally (and when C<$interval> is C<0>), the timer will automatically
		1044	stop after it has fired once. If C<$interval> is non-zero, then the timer
		1045	is automatically rescheduled at the given intervals.
332		1046
333	=item $timer = $timer->start	1047	=item $timer = $timer->start
334		1048
335	Start the timer.	1049	Start the timer.
336		1050
…		…
390		1104
391	Stop watching for events on the given filehandle.	1105	Stop watching for events on the given filehandle.
392		1106
393	=back	1107	=back
394		1108
		1109	=head1 ENVIRONMENT
		1110
		1111	=head2 URXVT_PERL_VERBOSITY
		1112
		1113	This variable controls the verbosity level of the perl extension. Higher
		1114	numbers indicate more verbose output.
		1115
		1116	=over 4
		1117
		1118	=item =0 - only fatal messages
		1119
		1120	=item =3 - script loading and management
		1121
		1122	=item =10 - all events received
		1123
		1124	=back
		1125
395	=head1 AUTHOR	1126	=head1 AUTHOR
396		1127
397	Marc Lehmann <pcg@goof.com>	1128	Marc Lehmann <pcg@goof.com>
398	http://software.schmorp.de/pkg/rxvt-unicode	1129	http://software.schmorp.de/pkg/rxvt-unicode
399		1130

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Comparing rxvt-unicode/src/urxvt.pm (file contents): Revision 1.1 by root, Mon Jan 2 15:35:43 2006 UTC vs. Revision 1.45 by root, Sat Jan 7 20:23:52 2006 UTC

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Comparing rxvt-unicode/src/urxvt.pm (file contents):
Revision 1.1 by root, Mon Jan 2 15:35:43 2006 UTC vs.
Revision 1.45 by root, Sat Jan 7 20:23:52 2006 UTC