[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 1.33 by root, Thu Jan 5 01:04:10 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, scripts specified via the
		23	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 example-refresh-hooks
		66
		67	Displays a very simple digital clock in the upper right corner of the
		68	window. Illustrates overwriting the refresh callbacks to create your own
		69	overlays or changes.
		70
		71	=item mark-urls
		72
		73	A not very useful example of filtering all text output to the terminal, by
		74	underlining all urls that matches a certain regex (i.e. some urls :). It
		75	is not very useful because urls that are output in multiple steps (e.g.
		76	when typing them) do not get marked.
		77
		78	=back
		79
		80	=head2 General API Considerations
		81
		82	All objects (such as terminals, time watchers etc.) are typical
		83	reference-to-hash objects. The hash can be used to store anything you
		84	like. All members starting with an underscore (such as C<_ptr> or
		85	C<_hook>) are reserved for internal uses and B<MUST NOT> be accessed or
		86	modified).
		87
		88	When objects are destroyed on the C++ side, the perl object hashes are
		89	emptied, so its best to store related objects such as time watchers and
		90	the like inside the terminal object so they get destroyed as soon as the
		91	terminal is destroyed.
		92
		93	Argument names also often indicate the type of a parameter. Here are some
		94	hints on what they mean:
		95
		96	=over 4
		97
		98	=item $text
		99
		100	Rxvt-unicodes special way of encoding text, where one "unicode" character
		101	always represents one screen cell. See L<row_t> for a discussion of this format.
		102
		103	=item $string
		104
		105	A perl text string, with an emphasis on I<text>. It can store all unicode
		106	characters and is to be distinguished with text encoded in a specific
		107	encoding (often locale-specific) and binary data.
		108
		109	=item $octets
		110
		111	Either binary data or - more common - a text string encoded in a
		112	locale-specific way.
		113
		114	=back
		115
23	=head2 Hooks	116	=head2 Hooks
24		117
25	The following subroutines can be declared in loaded scripts, and will be called	118	The following subroutines can be declared in loaded scripts, and will be
26	whenever the relevant event happens.	119	called whenever the relevant event happens.
		120
		121	The first argument passed to them is an object private to each terminal
		122	and extension package. You can call all C<urxvt::term> methods on it, but
		123	its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
		124	object that is shared between all packages is stored in the C<term>
		125	member.
27		126
28	All of them must return a boolean value. If it is true, then the event	127	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,	128	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.	129	and the relevant action might not be carried out by the C++ code.
31		130
64	requested from the server. The selection text can be queried and changed	163	requested from the server. The selection text can be queried and changed
65	by calling C<< $term->selection >>.	164	by calling C<< $term->selection >>.
66		165
67	Returning a true value aborts selection grabbing. It will still be hilighted.	166	Returning a true value aborts selection grabbing. It will still be hilighted.
68		167
		168	=item on_sel_extend $term
		169
		170	Called whenever the user tries to extend the selection (e.g. with a double
		171	click) and is either supposed to return false (normal operation), or
		172	should extend the selection itelf and return true to suppress the built-in
		173	processing.
		174
		175	See the F<selection> example extension.
		176
69	=item on_focus_in $term	177	=item on_focus_in $term
70		178
71	Called whenever the window gets the keyboard focus, before urxvt does	179	Called whenever the window gets the keyboard focus, before urxvt does
72	focus in processing.	180	focus in processing.
73		181
…		…
93	number of lines that will be in the scrollback buffer.	201	number of lines that will be in the scrollback buffer.
94		202
95	=item on_tty_activity $term NYI	203	=item on_tty_activity $term NYI
96		204
97	Called whenever the program(s) running in the urxvt window send output.	205	Called whenever the program(s) running in the urxvt window send output.
		206
		207	=item on_osc_seq $term, $string
		208
		209	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
		210	operating system command) is processed. Cursor position and other state
		211	information is up-to-date when this happens. For interoperability, the
		212	string should start with the extension name and a colon, to distinguish
		213	it from commands for other extensions, and this might be enforced in the
		214	future.
		215
		216	Be careful not ever to trust (in a security sense) the data you receive,
		217	as its source can not easily be controleld (e-mail content, messages from
		218	other users on the same system etc.).
		219
		220	=item on_add_lines $term, $string
		221
		222	Called whenever text is about to be output, with the text as argument. You
		223	can filter/change and output the text yourself by returning a true value
		224	and calling C<< $term->scr_add_lines >> yourself. Please note that this
		225	might be very slow, however, as your hook is called for B<all> text being
		226	output.
98		227
99	=item on_refresh_begin $term	228	=item on_refresh_begin $term
100		229
101	Called just before the screen gets redrawn. Can be used for overlay	230	Called just before the screen gets redrawn. Can be used for overlay
102	or similar effects by modify terminal contents in refresh_begin, and	231	or similar effects by modify terminal contents in refresh_begin, and
…		…
105		234
106	=item on_refresh_end $term	235	=item on_refresh_end $term
107		236
108	Called just after the screen gets redrawn. See C<on_refresh_begin>.	237	Called just after the screen gets redrawn. See C<on_refresh_begin>.
109		238
		239	=item on_keyboard_command $term, $string
		240
		241	Called whenever the user presses a key combination that has a
		242	C<perl:string> action bound to it (see description of the B<keysym>
		243	resource in the @@RXVT_NAME@@(1) manpage).
		244
		245	=back
		246
		247	=head2 Variables in the C<urxvt> Package
		248
		249	=over 4
		250
		251	=item $urxvt::TERM
		252
		253	The current terminal. Whenever a callback/Hook is bein executed, this
		254	variable stores the current C<urxvt::term> object.
		255
110	=back	256	=back
111		257
112	=head2 Functions in the C<urxvt> Package	258	=head2 Functions in the C<urxvt> Package
113		259
114	=over 4	260	=over 4
…		…
119	costs! The only time this is acceptable is when the terminal process	265	costs! The only time this is acceptable is when the terminal process
120	starts up.	266	starts up.
121		267
122	=item urxvt::warn $string	268	=item urxvt::warn $string
123		269
124	Calls C<rxvt_warn> witht eh given string which should not include a	270	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	271	newline. The module also overwrites the C<warn> builtin with a function
126	that calls this function.	272	that calls this function.
127		273
128	Using this function has the advantage that its output ends up in the	274	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.	275	correct place, e.g. on stderr of the connecting urxvtc client.
130		276
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	277	=item $time = urxvt::NOW
137		278
138	Returns the "current time" (as per the event loop).	279	Returns the "current time" (as per the event loop).
139		280
		281	=back
		282
		283	=head2 RENDITION
		284
		285	Rendition bitsets contain information about colour, font, font styles and
		286	similar information for each screen cell.
		287
		288	The following "macros" deal with changes in rendition sets. You should
		289	never just create a bitset, you should always modify an existing one,
		290	as they contain important information required for correct operation of
		291	rxvt-unicode.
		292
		293	=over 4
		294
		295	=item $rend = urxvt::DEFAULT_RSTYLE
		296
		297	Returns the default rendition, as used when the terminal is starting up or
		298	being reset. Useful as a base to start when creating renditions.
		299
		300	=item $rend = urxvt::OVERLAY_RSTYLE
		301
		302	Return the rendition mask used for overlays by default.
		303
		304	=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline
		305
		306	Return the bit that enabled bold, italic, blink, reverse-video and
		307	underline, respectively. To enable such a style, just logically OR it into
		308	the bitset.
		309
		310	=item $foreground = urxvt::GET_BASEFG $rend
		311
		312	=item $background = urxvt::GET_BASEBG $rend
		313
		314	Return the foreground/background colour index, respectively.
		315
		316	=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)
		317
		318	=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)
		319
		320	Replace the foreground/background colour in the rendition mask with the
		321	specified one.
		322
		323	=item $value = urxvt::GET_CUSTOM ($rend)
		324
		325	Return the "custom" value: Every rendition has 5 bits for use by
		326	extensions. They can be set and changed as you like and are initially
		327	zero.
		328
		329	=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)
		330
		331	Change the custom value.
		332
		333	=back
		334
140	=cut	335	=cut
141		336
142	package urxvt;	337	package urxvt;
143		338
144	use strict;	339	use strict;
		340	use Scalar::Util ();
145		341
146	our $term;	342	our $TERM;
147	our @HOOKNAME;	343	our @HOOKNAME;
148	our $LIBDIR;	344	our $LIBDIR;
149		345
150	BEGIN {	346	BEGIN {
151	urxvt->bootstrap;	347	urxvt->bootstrap;
…		…
157	unless $msg =~ /\n$/;	353	unless $msg =~ /\n$/;
158	urxvt::warn ($msg);	354	urxvt::warn ($msg);
159	};	355	};
160	}	356	}
161		357
		358	my @hook_count;
162	my $verbosity = $ENV{URXVT_PERL_VERBOSITY} \|\| 10;	359	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
163		360
164	sub verbose {	361	sub verbose {
165	my ($level, $msg) = @_;	362	my ($level, $msg) = @_;
166	warn "$msg\n"; #d#	363	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	}	364	}
187		365
188	# find on_xxx subs in the package and register them	366	# find on_xxx subs in the package and register them
189	# as hooks	367	# as hooks
190	sub register_package($) {	368	sub register_package($) {
191	my ($pkg) = @_;	369	my ($pkg) = @_;
192		370
193	for my $hook (0.. $#HOOKNAME) {	371	for my $htype (0.. $#HOOKNAME) {
194	my $name = $HOOKNAME[$hook];	372	my $name = $HOOKNAME[$htype];
195		373
196	my $ref = $pkg->can ("on_" . lc $name)	374	my $ref = $pkg->can ("on_" . lc $name)
197	or next;	375	or next;
198		376
199	$invoke_cb[$hook]{$ref*1} = $ref;	377	$TERM->{_hook}[$htype]{$pkg} = $ref;
		378	$hook_count[$htype]++
200	set_should_invoke $hook, 1;	379	or set_should_invoke $htype, 1;
201	}	380	}
202	}	381	}
203		382
204	my $script_pkg = "script0000";	383	my $script_pkg = "script0000";
205	my %script_pkg;	384	my %script_pkg;
206		385
207	# load a single script into its own package, once only	386	# load a single script into its own package, once only
208	sub load_script($) {	387	sub script_package($) {
209	my ($path) = @_;	388	my ($path) = @_;
210		389
211	$script_pkg{$path} \|\|= do {	390	$script_pkg{$path} \|\|= do {
212	my $pkg = $script_pkg++;	391	my $pkg = "urxvt::" . ($script_pkg++);
		392
213	verbose 3, "loading script '$path' into package '$pkg'";	393	verbose 3, "loading script '$path' into package '$pkg'";
214		394
215	open my $fh, "<:raw", $path	395	open my $fh, "<:raw", $path
216	or die "$path: $!";	396	or die "$path: $!";
217		397
218	eval "package $pkg; use strict; use utf8;\n"	398	my $source = "package $pkg; use strict; use utf8;\n"
219	. "#line 1 \"$path\"\n"	399	. "#line 1 \"$path\"\n{\n"
220	. do { local $/; <$fh> }	400	. (do { local $/; <$fh> })
		401	. "\n};\n1";
		402
221	or die "$path: $@";	403	eval $source or die "$path: $@";
222
223	register_package $pkg;
224		404
225	$pkg	405	$pkg
226	};	406	}
227	}	407	}
228		408
229	load_script $_ for grep -f $_, <$LIBDIR/perl-init/*>;	409	our $retval; # return value for urxvt
230		410
		411	# called by the rxvt core
		412	sub invoke {
		413	local $TERM = shift;
		414	my $htype = shift;
231		415
232	=back	416	if ($htype == 0) { # INIT
		417	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
		418
		419	for my $ext (map { split /:/, $TERM->resource ("perl_ext_$_") } 1, 2) {
		420	my @files = grep -f $_, map "$_/$ext", @dirs;
		421
		422	if (@files) {
		423	register_package script_package $files[0];
		424	} else {
		425	warn "perl extension '$ext' not found in perl library search path\n";
		426	}
		427	}
		428	}
		429
		430	$retval = undef;
		431
		432	if (my $cb = $TERM->{_hook}[$htype]) {
		433	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
		434	if $verbosity >= 10;
		435
		436	keys %$cb;
		437
		438	while (my ($pkg, $cb) = each %$cb) {
		439	$retval = $cb->(
		440	$TERM->{_pkg}{$pkg} \|\|= do {
		441	my $proxy = bless { }, urxvt::term::proxy::;
		442	Scalar::Util::weaken ($proxy->{term} = $TERM);
		443	$proxy
		444	},
		445	@_,
		446	) and last;
		447	}
		448	}
		449
		450	if ($htype == 1) { # DESTROY
		451	# remove hooks if unused
		452	if (my $hook = $TERM->{_hook}) {
		453	for my $htype (0..$#$hook) {
		454	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] \|\| {} }
		455	or set_should_invoke $htype, 0;
		456	}
		457	}
		458
		459	# clear package objects
		460	%$_ = () for values %{ $TERM->{_pkg} };
		461
		462	# clear package
		463	%$TERM = ();
		464	}
		465
		466	$retval
		467	}
		468
		469	sub urxvt::term::proxy::AUTOLOAD {
		470	$urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/
		471	or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";
		472
		473	eval qq{
		474	sub $urxvt::term::proxy::AUTOLOAD {
		475	my \$proxy = shift;
		476	\$proxy->{term}->$1 (\@_)
		477	}
		478	1
		479	} or die "FATAL: unable to compile method forwarder: $@";
		480
		481	goto &$urxvt::term::proxy::AUTOLOAD;
		482	}
233		483
234	=head2 The C<urxvt::term> Class	484	=head2 The C<urxvt::term> Class
235		485
236	=over 4	486	=over 4
		487
		488	=item $value = $term->resource ($name[, $newval])
		489
		490	Returns the current resource value associated with a given name and
		491	optionally sets a new value. Setting values is most useful in the C<init>
		492	hook. Unset resources are returned and accepted as C<undef>.
		493
		494	The new value must be properly encoded to a suitable character encoding
		495	before passing it to this method. Similarly, the returned value may need
		496	to be converted from the used encoding to text.
		497
		498	Resource names are as defined in F<src/rsinc.h>. Colours can be specified
		499	as resource names of the form C<< color+<index> >>, e.g. C<color+5>. (will
		500	likely change).
		501
		502	Please note that resource strings will currently only be freed when the
		503	terminal is destroyed, so changing options frequently will eat memory.
		504
		505	Here is a a likely non-exhaustive list of resource names, not all of which
		506	are supported in every build, please see the source to see the actual
		507	list:
		508
		509	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
		510	borderLess color cursorBlink cursorUnderline cutchars delete_key
		511	display_name embed ext_bwidth fade font geometry hold iconName
		512	imFont imLocale inputMethod insecure int_bwidth intensityStyles
		513	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier
		514	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2
		515	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd
		516	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating
		517	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput
		518	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle
		519	shade term_name title transparent transparent_all tripleclickwords
		520	utmpInhibit visualBell
		521
		522	=cut
		523
		524	sub urxvt::term::resource($$;$) {
		525	my ($self, $name) = (shift, shift);
		526	unshift @_, $self, $name, ($name =~ s/\s\+\s(\d+)$// ? $1 : 0);
		527	goto &urxvt::term::_resource;
		528	}
		529
		530	=item $rend = $term->rstyle ([$new_rstyle])
		531
		532	Return and optionally change the current rendition. Text that is output by
		533	the terminal application will use this style.
		534
		535	=item ($row, $col) = $term->screen_cur ([$row, $col])
		536
		537	Return the current coordinates of the text cursor position and optionally
		538	set it (which is usually bad as applications don't expect that).
237		539
238	=item ($row, $col) = $term->selection_mark ([$row, $col])	540	=item ($row, $col) = $term->selection_mark ([$row, $col])
239		541
240	=item ($row, $col) = $term->selection_beg ([$row, $col])	542	=item ($row, $col) = $term->selection_beg ([$row, $col])
241		543
…		…
251		553
252	=item $oldtext = $term->selection ([$newtext])	554	=item $oldtext = $term->selection ([$newtext])
253		555
254	Return the current selection text and optionally replace it by C<$newtext>.	556	Return the current selection text and optionally replace it by C<$newtext>.
255		557
256	=item $term->scr_overlay ($x, $y, $text)	558	#=item $term->overlay ($x, $y, $text)
257		559	#
258	Create a simple multi-line overlay box. See the next method for details.	560	#Create a simple multi-line overlay box. See the next method for details.
		561	#
		562	#=cut
		563	#
		564	#sub urxvt::term::scr_overlay {
		565	# my ($self, $x, $y, $text) = @_;
		566	#
		567	# my @lines = split /\n/, $text;
		568	#
		569	# my $w = 0;
		570	# for (map $self->strwidth ($_), @lines) {
		571	# $w = $_ if $w < $_;
		572	# }
		573	#
		574	# $self->scr_overlay_new ($x, $y, $w, scalar @lines);
		575	# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;
		576	#}
		577
		578	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
		579
		580	Create a new (empty) overlay at the given position with the given
		581	width/height. C<$rstyle> defines the initial rendition style
		582	(default: C<OVERLAY_RSTYLE>).
		583
		584	If C<$border> is C<2> (default), then a decorative border will be put
		585	around the box.
		586
		587	If either C<$x> or C<$y> is negative, then this is counted from the
		588	right/bottom side, respectively.
		589
		590	This method returns an urxvt::overlay object. The overlay will be visible
		591	as long as the perl object is referenced.
		592
		593	The methods currently supported on C<urxvt::overlay> objects are:
		594
		595	=over 4
		596
		597	=item $overlay->set ($x, $y, $text, $rend)
		598
		599	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts
		600	text in rxvt-unicode's special encoding and an array of rendition values
		601	at a specific position inside the overlay.
		602
		603	=item $overlay->hide
		604
		605	If visible, hide the overlay, but do not destroy it.
		606
		607	=item $overlay->show
		608
		609	If hidden, display the overlay again.
		610
		611	=back
		612
		613	=item $cellwidth = $term->strwidth $string
		614
		615	Returns the number of screen-cells this string would need. Correctly
		616	accounts for wide and combining characters.
		617
		618	=item $octets = $term->locale_encode $string
		619
		620	Convert the given text string into the corresponding locale encoding.
		621
		622	=item $string = $term->locale_decode $octets
		623
		624	Convert the given locale-encoded octets into a perl string.
		625
		626	=item $term->scr_add_lines ($string)
		627
		628	Write the given text string to the screen, as if output by the application
		629	running inside the terminal. It may not contain command sequences (escape
		630	codes), but is free to use line feeds, carriage returns and tabs. The
		631	string is a normal text string, not in locale-dependent encoding.
		632
		633	Normally its not a good idea to use this function, as programs might be
		634	confused by changes in cursor position or scrolling. Its useful inside a
		635	C<on_add_lines> hook, though.
		636
		637	=item $term->tt_write ($octets)
		638
		639	Write the octets given in C<$data> to the tty (i.e. as program input). To
		640	pass characters instead of octets, you should convert your strings first
		641	to the locale-specific encoding using C<< $term->locale_encode >>.
		642
		643	=item $window_width = $term->width
		644
		645	=item $window_height = $term->height
		646
		647	=item $font_width = $term->fwidth
		648
		649	=item $font_height = $term->fheight
		650
		651	=item $font_ascent = $term->fbase
		652
		653	=item $terminal_rows = $term->nrow
		654
		655	=item $terminal_columns = $term->ncol
		656
		657	=item $has_focus = $term->focus
		658
		659	=item $is_mapped = $term->mapped
		660
		661	=item $max_scrollback = $term->saveLines
		662
		663	=item $nrow_plus_saveLines = $term->total_rows
		664
		665	=item $lines_in_scrollback = $term->nsaved
		666
		667	Return various integers describing terminal characteristics.
		668
		669	=item $view_start = $term->view_start ([$newvalue])
		670
		671	Returns the negative row number of the topmost line. Minimum value is
		672	C<0>, which displays the normal terminal contents. Larger values scroll
		673	this many lines into the scrollback buffer.
		674
		675	=item $term->want_refresh
		676
		677	Requests a screen refresh. At the next opportunity, rxvt-unicode will
		678	compare the on-screen display with its stored representation. If they
		679	differ, it redraws the differences.
		680
		681	Used after changing terminal contents to display them.
		682
		683	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
		684
		685	Returns the text of the entire row with number C<$row_number>. Row C<0>
		686	is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost
		687	terminal line. The scrollback buffer starts at line C<-1> and extends to
		688	line C<< -$term->nsaved >>. Nothing will be returned if a nonexistent line
		689	is requested.
		690
		691	If C<$new_text> is specified, it will replace characters in the current
		692	line, starting at column C<$start_col> (default C<0>), which is useful
		693	to replace only parts of a line. The font index in the rendition will
		694	automatically be updated.
		695
		696	C<$text> is in a special encoding: tabs and wide characters that use more
		697	than one cell when displayed are padded with urxvt::NOCHAR characters
		698	(C<chr 65535>). Characters with combining characters and other characters
		699	that do not fit into the normal tetx encoding will be replaced with
		700	characters in the private use area.
		701
		702	You have to obey this encoding when changing text. The advantage is
		703	that C<substr> and similar functions work on screen cells and not on
		704	characters.
		705
		706	The methods C<< $term->special_encode >> and C<< $term->special_decode >>
		707	can be used to convert normal strings into this encoding and vice versa.
		708
		709	=item $rend = $term->ROW_r ($row_number[, $new_rend[, $start_col]])
		710
		711	Like C<< $term->ROW_t >>, but returns an arrayref with rendition
		712	bitsets. Rendition bitsets contain information about colour, font, font
		713	styles and similar information. See also C<< $term->ROW_t >>.
		714
		715	When setting rendition, the font mask will be ignored.
		716
		717	See the section on RENDITION, above.
		718
		719	=item $length = $term->ROW_l ($row_number[, $new_length])
		720
		721	Returns the number of screen cells that are in use ("the line
		722	length"). Unlike the urxvt core, this returns C<< $term->ncol >> if the
		723	line is joined with the following one.
		724
		725	=item $bool = $term->is_longer ($row_number)
		726
		727	Returns true if the row is part of a multiple-row logical "line" (i.e.
		728	joined with the following row), which means all characters are in use
		729	and it is continued on the next row (and possibly a continuation of the
		730	previous row(s)).
		731
		732	=item $line = $term->line ($row_number)
		733
		734	Create and return a new C<urxvt::line> object that stores information
		735	about the logical line that row C<$row_number> is part of. It supports the
		736	following methods:
		737
		738	=over 4
		739
		740	=item $text = $line->t
		741
		742	Returns the full text of the line, similar to C<ROW_t>
		743
		744	=item $rend = $line->r
		745
		746	Returns the full rendition array of the line, similar to C<ROW_r>
		747
		748	=item $length = $line->l
		749
		750	Returns the length of the line in cells, similar to C<ROW_l>.
		751
		752	=item $rownum = $line->beg
		753
		754	=item $rownum = $line->end
		755
		756	Return the row number of the first/last row of the line, respectively.
		757
		758	=item $offset = $line->offset_of ($row, $col)
		759
		760	Returns the character offset of the given row\|col pair within the logical
		761	line.
		762
		763	=item ($row, $col) = $line->coord_of ($offset)
		764
		765	Translates a string offset into terminal coordinates again.
		766
		767	=back
259		768
260	=cut	769	=cut
261		770
262	sub urxvt::term::scr_overlay {	771	sub urxvt::term::line {
		772	my ($self, $row) = @_;
		773
		774	my $maxrow = $self->nrow - 1;
		775
		776	my ($beg, $end) = ($row, $row);
		777
		778	--$beg while $self->ROW_is_longer ($beg - 1);
		779	++$end while $self->ROW_is_longer ($end) && $end < $maxrow;
		780
		781	bless {
		782	term => $self,
		783	beg => $beg,
		784	end => $end,
		785	len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),
		786	}, urxvt::line::
		787	}
		788
		789	sub urxvt::line::t {
		790	my ($self) = @_;
		791
		792	substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),
		793	0, $self->{len}
		794	}
		795
		796	sub urxvt::line::r {
		797	my ($self) = @_;
		798
		799	my $rend = [
		800	map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}
		801	];
		802	$#$rend = $self->{len} - 1;
		803	$rend
		804	}
		805
		806	sub urxvt::line::beg { $_[0]{beg} }
		807	sub urxvt::line::end { $_[0]{end} }
		808	sub urxvt::line::l { $_[0]{len} }
		809
		810	sub urxvt::line::offset_of {
		811	my ($self, $row, $col) = @_;
		812
		813	($row - $self->{beg}) * $self->{term}->ncol + $col
		814	}
		815
		816	sub urxvt::line::coord_of {
263	my ($self, $x, $y, $text) = @_;	817	my ($self, $offset) = @_;
264		818
265	my @lines = split /\n/, $text;	819	use integer;
266		820
267	my $w = 0;
268	for (map urxvt::wcswidth $_, @lines) {
269	$w = $_ if $w < $_;
270	}	821	(
271		822	$offset / $self->{term}->ncol + $self->{beg},
272	$self->scr_overlay_new ($x, $y, $w, scalar @lines);	823	$offset % $self->{term}->ncol
273	$self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;	824	)
274	}	825	}
275		826
276	=item $term->scr_overlay_new ($x, $y, $width, $height)	827	=item ($row, $col) = $line->coord_of ($offset)
		828	=item $text = $term->special_encode $string
277		829
278	Create a new (empty) overlay at the given position with the given	830	Converts a perl string into the special encoding used by rxvt-unicode,
279	width/height. A border will be put around the box. If either C<$x> or	831	where one character corresponds to one screen cell. See
280	C<$y> is negative, then this is counted from the right/bottom side,	832	C<< $term->ROW_t >> for details.
281	respectively.
282		833
283	=item $term->scr_overlay_off	834	=item $string = $term->special_decode $text
284		835
285	Switch the overlay off again.	836	Converts rxvt-unicodes text reprsentation into a perl string. See
286		837	C<< $term->ROW_t >> for details.
287	=item $term->scr_overlay_set_char ($x, $y, $char, $rend = OVERLAY_RSTYLE)
288
289	Put a single character (specified numerically) at the given overlay
290	position.
291
292	=item $term->scr_overlay_set ($x, $y, $text)
293
294	Write a string at the given position into the overlay.
295		838
296	=back	839	=back
297		840
298	=head2 The C<urxvt::timer> Class	841	=head2 The C<urxvt::timer> Class
299		842
300	This class implements timer watchers/events. Time is represented as a	843	This class implements timer watchers/events. Time is represented as a
301	fractional number of seconds since the epoch. Example:	844	fractional number of seconds since the epoch. Example:
302		845
303	# create a digital clock display in upper right corner	846	$term->{overlay} = $term->overlay (-1, 0, 8, 1, urxvt::OVERLAY_RSTYLE, 0);
304	$term->{timer} = urxvt::timer	847	$term->{timer} = urxvt::timer
305	->new	848	->new
306	->start (urxvt::NOW)	849	->interval (1)
307	->cb (sub {	850	->cb (sub {
308	my ($timer) = @_;
309	my $time = $timer->at;
310	$timer->start ($time + 1);
311	$self->scr_overlay (-1, 0,	851	$term->{overlay}->set (0, 0,
312	POSIX::strftime "%H:%M:%S", localtime $time);	852	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
313	});	853	});
314		854
315	=over 4	855	=over 4
316		856
317	=item $timer = new urxvt::timer	857	=item $timer = new urxvt::timer
318		858
319	Create a new timer object in stopped state.	859	Create a new timer object in started state. It is scheduled to fire
		860	immediately.
320		861
321	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })	862	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })
322		863
323	Set the callback to be called when the timer triggers.	864	Set the callback to be called when the timer triggers.
324		865
…		…
327	Return the time this watcher will fire next.	868	Return the time this watcher will fire next.
328		869
329	=item $timer = $timer->set ($tstamp)	870	=item $timer = $timer->set ($tstamp)
330		871
331	Set the time the event is generated to $tstamp.	872	Set the time the event is generated to $tstamp.
		873
		874	=item $timer = $timer->interval ($interval)
		875
		876	Normally (and when C<$interval> is C<0>), the timer will automatically
		877	stop after it has fired once. If C<$interval> is non-zero, then the timer
		878	is automatically rescheduled at the given intervals.
332		879
333	=item $timer = $timer->start	880	=item $timer = $timer->start
334		881
335	Start the timer.	882	Start the timer.
336		883
…		…
390		937
391	Stop watching for events on the given filehandle.	938	Stop watching for events on the given filehandle.
392		939
393	=back	940	=back
394		941
		942	=head1 ENVIRONMENT
		943
		944	=head2 URXVT_PERL_VERBOSITY
		945
		946	This variable controls the verbosity level of the perl extension. Higher
		947	numbers indicate more verbose output.
		948
		949	=over 4
		950
		951	=item =0 - only fatal messages
		952
		953	=item =3 - script loading and management
		954
		955	=item =10 - all events received
		956
		957	=back
		958
395	=head1 AUTHOR	959	=head1 AUTHOR
396		960
397	Marc Lehmann <pcg@goof.com>	961	Marc Lehmann <pcg@goof.com>
398	http://software.schmorp.de/pkg/rxvt-unicode	962	http://software.schmorp.de/pkg/rxvt-unicode
399		963

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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 1.33 by root, Thu Jan 5 01:04:10 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 1.33 by root, Thu Jan 5 01:04:10 2006 UTC