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

Comparing rxvt-unicode/src/urxvt.pm (file contents):
Revision 1.3 by root, Mon Jan 2 15:59:25 2006 UTC vs.
Revision 1.31 by root, Wed Jan 4 19:39:46 2006 UTC

…		…
		1	=encoding utf8
		2
1	=head1 NAME	3	=head1 NAME
2		4
3	rxvtperl - 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 F<@@RXVT_LIBDIR@@/urxvt/perl-ext/>, 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 encoded as 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;
17	()	13	()
18	}	14	}
19		15
20	1	16	# start a @@RXVT_NAME@@ using it:
		17
		18	@@RXVT_NAME@@ --perl-lib $HOME -pe grab_test
21		19
22	=head1 DESCRIPTION	20	=head1 DESCRIPTION
23		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	=back
		72
		73	=head2 General API Considerations
		74
		75	All objects (such as terminals, time watchers etc.) are typical
		76	reference-to-hash objects. The hash can be used to store anything you
		77	like. All members starting with an underscore (such as C<_ptr> or
		78	C<_hook>) are reserved for internal uses and B<MUST NOT> be accessed or
		79	modified).
		80
		81	When objects are destroyed on the C++ side, the perl object hashes are
		82	emptied, so its best to store related objects such as time watchers and
		83	the like inside the terminal object so they get destroyed as soon as the
		84	terminal is destroyed.
		85
24	=head2 Hooks	86	=head2 Hooks
25		87
26	The following subroutines can be declared in loaded scripts, and will be called	88	The following subroutines can be declared in loaded scripts, and will be
27	whenever the relevant event happens.	89	called whenever the relevant event happens.
		90
		91	The first argument passed to them is an object private to each terminal
		92	and extension package. You can call all C<urxvt::term> methods on it, but
		93	its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
		94	object that is shared between all packages is stored in the C<term>
		95	member.
28		96
29	All of them must return a boolean value. If it is true, then the event	97	All of them must return a boolean value. If it is true, then the event
30	counts as being I<consumed>, and the invocation of other hooks is skipped,	98	counts as being I<consumed>, and the invocation of other hooks is skipped,
31	and the relevant action might not be carried out by the C++ code.	99	and the relevant action might not be carried out by the C++ code.
32		100
65	requested from the server. The selection text can be queried and changed	133	requested from the server. The selection text can be queried and changed
66	by calling C<< $term->selection >>.	134	by calling C<< $term->selection >>.
67		135
68	Returning a true value aborts selection grabbing. It will still be hilighted.	136	Returning a true value aborts selection grabbing. It will still be hilighted.
69		137
		138	=item on_sel_extend $term
		139
		140	Called whenever the user tries to extend the selection (e.g. with a double
		141	click) and is either supposed to return false (normal operation), or
		142	should extend the selection itelf and return true to suppress the built-in
		143	processing.
		144
		145	See the F<selection> example extension.
		146
70	=item on_focus_in $term	147	=item on_focus_in $term
71		148
72	Called whenever the window gets the keyboard focus, before urxvt does	149	Called whenever the window gets the keyboard focus, before urxvt does
73	focus in processing.	150	focus in processing.
74		151
…		…
94	number of lines that will be in the scrollback buffer.	171	number of lines that will be in the scrollback buffer.
95		172
96	=item on_tty_activity $term NYI	173	=item on_tty_activity $term NYI
97		174
98	Called whenever the program(s) running in the urxvt window send output.	175	Called whenever the program(s) running in the urxvt window send output.
		176
		177	=item on_osc_seq $term, $string
		178
		179	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
		180	operating system command) is processed. Cursor position and other state
		181	information is up-to-date when this happens. For interoperability, the
		182	string should start with the extension name and a colon, to distinguish
		183	it from commands for other extensions, and this might be enforced in the
		184	future.
		185
		186	Be careful not ever to trust (in a security sense) the data you receive,
		187	as its source can not easily be controleld (e-mail content, messages from
		188	other users on the same system etc.).
99		189
100	=item on_refresh_begin $term	190	=item on_refresh_begin $term
101		191
102	Called just before the screen gets redrawn. Can be used for overlay	192	Called just before the screen gets redrawn. Can be used for overlay
103	or similar effects by modify terminal contents in refresh_begin, and	193	or similar effects by modify terminal contents in refresh_begin, and
…		…
106		196
107	=item on_refresh_end $term	197	=item on_refresh_end $term
108		198
109	Called just after the screen gets redrawn. See C<on_refresh_begin>.	199	Called just after the screen gets redrawn. See C<on_refresh_begin>.
110		200
		201	=item on_keyboard_command $term, $string
		202
		203	Called whenever the user presses a key combination that has a
		204	C<perl:string> action bound to it (see description of the B<keysym>
		205	resource in the @@RXVT_NAME@@(1) manpage).
		206
		207	=back
		208
		209	=head2 Variables in the C<urxvt> Package
		210
		211	=over 4
		212
		213	=item $urxvt::TERM
		214
		215	The current terminal. Whenever a callback/Hook is bein executed, this
		216	variable stores the current C<urxvt::term> object.
		217
111	=back	218	=back
112		219
113	=head2 Functions in the C<urxvt> Package	220	=head2 Functions in the C<urxvt> Package
114		221
115	=over 4	222	=over 4
…		…
120	costs! The only time this is acceptable is when the terminal process	227	costs! The only time this is acceptable is when the terminal process
121	starts up.	228	starts up.
122		229
123	=item urxvt::warn $string	230	=item urxvt::warn $string
124		231
125	Calls C<rxvt_warn> witht eh given string which should not include a	232	Calls C<rxvt_warn> with the given string which should not include a
126	newline. The module also overwrites the C<warn> builtin with a function	233	newline. The module also overwrites the C<warn> builtin with a function
127	that calls this function.	234	that calls this function.
128		235
129	Using this function has the advantage that its output ends up in the	236	Using this function has the advantage that its output ends up in the
130	correct place, e.g. on stderr of the connecting urxvtc client.	237	correct place, e.g. on stderr of the connecting urxvtc client.
131		238
132	=item $cellwidth = urxvt::wcswidth $string
133
134	Returns the number of screen-cells this string would need. Correctly
135	accounts for wide and combining characters.
136
137	=item $time = urxvt::NOW	239	=item $time = urxvt::NOW
138		240
139	Returns the "current time" (as per the event loop).	241	Returns the "current time" (as per the event loop).
140		242
		243	=back
		244
		245	=head2 RENDITION
		246
		247	Rendition bitsets contain information about colour, font, font styles and
		248	similar information for each screen cell.
		249
		250	The following "macros" deal with changes in rendition sets. You should
		251	never just create a bitset, you should always modify an existing one,
		252	as they contain important information required for correct operation of
		253	rxvt-unicode.
		254
		255	=over 4
		256
		257	=item $rend = urxvt::DEFAULT_RSTYLE
		258
		259	Returns the default rendition, as used when the terminal is starting up or
		260	being reset. Useful as a base to start when creating renditions.
		261
		262	=item $rend = urxvt::OVERLAY_RSTYLE
		263
		264	Return the rendition mask used for overlays by default.
		265
		266	=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline
		267
		268	Return the bit that enabled bold, italic, blink, reverse-video and
		269	underline, respectively. To enable such a style, just logically OR it into
		270	the bitset.
		271
		272	=item $foreground = urxvt::GET_BASEFG $rend
		273
		274	=item $background = urxvt::GET_BASEBG $rend
		275
		276	Return the foreground/background colour index, respectively.
		277
		278	=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)
		279
		280	=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)
		281
		282	Replace the foreground/background colour in the rendition mask with the
		283	specified one.
		284
		285	=item $value = urxvt::GET_CUSTOM ($rend)
		286
		287	Return the "custom" value: Every rendition has 5 bits for use by
		288	extensions. They can be set and changed as you like and are initially
		289	zero.
		290
		291	=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)
		292
		293	Change the custom value.
		294
		295	=back
		296
141	=cut	297	=cut
142		298
143	package urxvt;	299	package urxvt;
144		300
145	use strict;	301	use strict;
		302	use Scalar::Util ();
146		303
147	our $term;	304	our $TERM;
148	our @HOOKNAME;	305	our @HOOKNAME;
149	our $LIBDIR;	306	our $LIBDIR;
150		307
151	BEGIN {	308	BEGIN {
152	urxvt->bootstrap;	309	urxvt->bootstrap;
…		…
158	unless $msg =~ /\n$/;	315	unless $msg =~ /\n$/;
159	urxvt::warn ($msg);	316	urxvt::warn ($msg);
160	};	317	};
161	}	318	}
162		319
		320	my @hook_count;
163	my $verbosity = $ENV{URXVT_PERL_VERBOSITY} \|\| 10;	321	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
164		322
165	sub verbose {	323	sub verbose {
166	my ($level, $msg) = @_;	324	my ($level, $msg) = @_;
167	warn "$msg\n"; #d#	325	warn "$msg\n" if $level <= $verbosity;
168	}
169
170	my @invoke_cb;
171
172	# called by the rxvt core
173	sub invoke {
174	local $term = shift;
175	my $htype = shift;
176
177	my $cb = $invoke_cb[$htype];
178
179	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $term, @_) . ")"
180	if $verbosity >= 10;
181
182	while (my ($k, $v) = each %$cb) {
183	return 1 if $v->($term, @_);
184	}
185
186	0
187	}	326	}
188		327
189	# find on_xxx subs in the package and register them	328	# find on_xxx subs in the package and register them
190	# as hooks	329	# as hooks
191	sub register_package($) {	330	sub register_package($) {
192	my ($pkg) = @_;	331	my ($pkg) = @_;
193		332
194	for my $hook (0.. $#HOOKNAME) {	333	for my $htype (0.. $#HOOKNAME) {
195	my $name = $HOOKNAME[$hook];	334	my $name = $HOOKNAME[$htype];
196		335
197	my $ref = $pkg->can ("on_" . lc $name)	336	my $ref = $pkg->can ("on_" . lc $name)
198	or next;	337	or next;
199		338
200	$invoke_cb[$hook]{$ref*1} = $ref;	339	$TERM->{_hook}[$htype]{$pkg} = $ref;
		340	$hook_count[$htype]++
201	set_should_invoke $hook, 1;	341	or set_should_invoke $htype, 1;
202	}	342	}
203	}	343	}
204		344
205	my $script_pkg = "script0000";	345	my $script_pkg = "script0000";
206	my %script_pkg;	346	my %script_pkg;
207		347
208	# load a single script into its own package, once only	348	# load a single script into its own package, once only
209	sub load_script($) {	349	sub script_package($) {
210	my ($path) = @_;	350	my ($path) = @_;
211		351
212	$script_pkg{$path} \|\|= do {	352	$script_pkg{$path} \|\|= do {
213	my $pkg = $script_pkg++;	353	my $pkg = "urxvt::" . ($script_pkg++);
		354
214	verbose 3, "loading script '$path' into package '$pkg'";	355	verbose 3, "loading script '$path' into package '$pkg'";
215		356
216	open my $fh, "<:raw", $path	357	open my $fh, "<:raw", $path
217	or die "$path: $!";	358	or die "$path: $!";
218		359
219	eval "package $pkg; use strict; use utf8;\n"	360	my $source = "package $pkg; use strict; use utf8;\n"
220	. "#line 1 \"$path\"\n"	361	. "#line 1 \"$path\"\n{\n"
221	. do { local $/; <$fh> }	362	. (do { local $/; <$fh> })
		363	. "\n};\n1";
		364
222	or die "$path: $@";	365	eval $source or die "$path: $@";
223
224	register_package $pkg;
225		366
226	$pkg	367	$pkg
227	};	368	}
228	}	369	}
229		370
230	load_script $_ for grep -f $_, <$LIBDIR/perl-ext/*>;	371	our $retval; # return value for urxvt
231		372
		373	# called by the rxvt core
		374	sub invoke {
		375	local $TERM = shift;
		376	my $htype = shift;
232		377
233	=back	378	if ($htype == 0) { # INIT
		379	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
		380
		381	for my $ext (map { split /:/, $TERM->resource ("perl_ext_$_") } 1, 2) {
		382	my @files = grep -f $_, map "$_/$ext", @dirs;
		383
		384	if (@files) {
		385	register_package script_package $files[0];
		386	} else {
		387	warn "perl extension '$ext' not found in perl library search path\n";
		388	}
		389	}
		390	}
		391
		392	$retval = undef;
		393
		394	if (my $cb = $TERM->{_hook}[$htype]) {
		395	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
		396	if $verbosity >= 10;
		397
		398	keys %$cb;
		399
		400	while (my ($pkg, $cb) = each %$cb) {
		401	$retval = $cb->(
		402	$TERM->{_pkg}{$pkg} \|\|= do {
		403	my $proxy = bless { }, urxvt::term::proxy::;
		404	Scalar::Util::weaken ($proxy->{term} = $TERM);
		405	$proxy
		406	},
		407	@_,
		408	) and last;
		409	}
		410	}
		411
		412	if ($htype == 1) { # DESTROY
		413	# remove hooks if unused
		414	if (my $hook = $TERM->{_hook}) {
		415	for my $htype (0..$#$hook) {
		416	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] \|\| {} }
		417	or set_should_invoke $htype, 0;
		418	}
		419	}
		420
		421	# clear package objects
		422	%$_ = () for values %{ $TERM->{_pkg} };
		423
		424	# clear package
		425	%$TERM = ();
		426	}
		427
		428	$retval
		429	}
		430
		431	sub urxvt::term::proxy::AUTOLOAD {
		432	$urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/
		433	or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";
		434
		435	eval qq{
		436	sub $urxvt::term::proxy::AUTOLOAD {
		437	my \$proxy = shift;
		438	\$proxy->{term}->$1 (\@_)
		439	}
		440	1
		441	} or die "FATAL: unable to compile method forwarder: $@";
		442
		443	goto &$urxvt::term::proxy::AUTOLOAD;
		444	}
234		445
235	=head2 The C<urxvt::term> Class	446	=head2 The C<urxvt::term> Class
236		447
237	=over 4	448	=over 4
		449
		450	=item $value = $term->resource ($name[, $newval])
		451
		452	Returns the current resource value associated with a given name and
		453	optionally sets a new value. Setting values is most useful in the C<init>
		454	hook. Unset resources are returned and accepted as C<undef>.
		455
		456	The new value must be properly encoded to a suitable character encoding
		457	before passing it to this method. Similarly, the returned value may need
		458	to be converted from the used encoding to text.
		459
		460	Resource names are as defined in F<src/rsinc.h>. Colours can be specified
		461	as resource names of the form C<< color+<index> >>, e.g. C<color+5>. (will
		462	likely change).
		463
		464	Please note that resource strings will currently only be freed when the
		465	terminal is destroyed, so changing options frequently will eat memory.
		466
		467	Here is a a likely non-exhaustive list of resource names, not all of which
		468	are supported in every build, please see the source to see the actual
		469	list:
		470
		471	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
		472	borderLess color cursorBlink cursorUnderline cutchars delete_key
		473	display_name embed ext_bwidth fade font geometry hold iconName
		474	imFont imLocale inputMethod insecure int_bwidth intensityStyles
		475	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier
		476	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2
		477	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd
		478	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating
		479	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput
		480	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle
		481	shade term_name title transparent transparent_all tripleclickwords
		482	utmpInhibit visualBell
		483
		484	=cut
		485
		486	sub urxvt::term::resource($$;$) {
		487	my ($self, $name) = (shift, shift);
		488	unshift @_, $self, $name, ($name =~ s/\s\+\s(\d+)$// ? $1 : 0);
		489	goto &urxvt::term::_resource;
		490	}
238		491
239	=item ($row, $col) = $term->selection_mark ([$row, $col])	492	=item ($row, $col) = $term->selection_mark ([$row, $col])
240		493
241	=item ($row, $col) = $term->selection_beg ([$row, $col])	494	=item ($row, $col) = $term->selection_beg ([$row, $col])
242		495
…		…
252		505
253	=item $oldtext = $term->selection ([$newtext])	506	=item $oldtext = $term->selection ([$newtext])
254		507
255	Return the current selection text and optionally replace it by C<$newtext>.	508	Return the current selection text and optionally replace it by C<$newtext>.
256		509
257	=item $term->scr_overlay ($x, $y, $text)	510	#=item $term->overlay ($x, $y, $text)
258		511	#
259	Create a simple multi-line overlay box. See the next method for details.	512	#Create a simple multi-line overlay box. See the next method for details.
260		513	#
261	=cut	514	#=cut
262		515
263	sub urxvt::term::scr_overlay {	516	sub urxvt::term::scr_overlay {
		517	die;
264	my ($self, $x, $y, $text) = @_;	518	my ($self, $x, $y, $text) = @_;
265		519
266	my @lines = split /\n/, $text;	520	my @lines = split /\n/, $text;
267		521
268	my $w = 0;	522	my $w = 0;
269	for (map urxvt::wcswidth $_, @lines) {	523	for (map $self->strwidth ($_), @lines) {
270	$w = $_ if $w < $_;	524	$w = $_ if $w < $_;
271	}	525	}
272		526
273	$self->scr_overlay_new ($x, $y, $w, scalar @lines);	527	$self->scr_overlay_new ($x, $y, $w, scalar @lines);
274	$self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;	528	$self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;
275	}	529	}
276		530
277	=item $term->scr_overlay_new ($x, $y, $width, $height)	531	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
278		532
279	Create a new (empty) overlay at the given position with the given	533	Create a new (empty) overlay at the given position with the given
280	width/height. A border will be put around the box. If either C<$x> or	534	width/height. C<$rstyle> defines the initial rendition style
281	C<$y> is negative, then this is counted from the right/bottom side,	535	(default: C<OVERLAY_RSTYLE>).
282	respectively.
283		536
284	=item $term->scr_overlay_off	537	If C<$border> is C<2> (default), then a decorative border will be put
		538	around the box.
285		539
286	Switch the overlay off again.	540	If either C<$x> or C<$y> is negative, then this is counted from the
		541	right/bottom side, respectively.
287		542
288	=item $term->scr_overlay_set_char ($x, $y, $char, $rend = OVERLAY_RSTYLE)	543	This method returns an urxvt::overlay object. The overlay will be visible
		544	as long as the perl object is referenced.
289		545
290	Put a single character (specified numerically) at the given overlay	546	The methods currently supported on C<urxvt::overlay> objects are:
291	position.
292		547
		548	=over 4
		549
293	=item $term->scr_overlay_set ($x, $y, $text)	550	=item $overlay->set ($x, $y, $text, $rend)
294		551
295	Write a string at the given position into the overlay.	552	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts
		553	text in rxvt-unicode's special encoding and an array of rendition values
		554	at a specific position inside the overlay.
		555
		556	=item $overlay->hide
		557
		558	If visible, hide the overlay, but do not destroy it.
		559
		560	=item $overlay->show
		561
		562	If hidden, display the overlay again.
		563
		564	=back
		565
		566	=item $cellwidth = $term->strwidth $string
		567
		568	Returns the number of screen-cells this string would need. Correctly
		569	accounts for wide and combining characters.
		570
		571	=item $octets = $term->locale_encode $string
		572
		573	Convert the given text string into the corresponding locale encoding.
		574
		575	=item $string = $term->locale_decode $octets
		576
		577	Convert the given locale-encoded octets into a perl string.
		578
		579	=item $term->tt_write ($octets)
		580
		581	Write the octets given in C<$data> to the tty (i.e. as program input). To
		582	pass characters instead of octets, you should convert your strings first
		583	to the locale-specific encoding using C<< $term->locale_encode >>.
		584
		585	=item $nrow = $term->nrow
		586
		587	=item $ncol = $term->ncol
		588
		589	Return the number of rows/columns of the terminal window (i.e. as
		590	specified by C<-geometry>, excluding any scrollback).
		591
		592	=item $nsaved = $term->nsaved
		593
		594	Returns the number of lines in the scrollback buffer.
		595
		596	=item $view_start = $term->view_start ([$newvalue])
		597
		598	Returns the negative row number of the topmost line. Minimum value is
		599	C<0>, which displays the normal terminal contents. Larger values scroll
		600	this many lines into the scrollback buffer.
		601
		602	=item $term->want_refresh
		603
		604	Requests a screen refresh. At the next opportunity, rxvt-unicode will
		605	compare the on-screen display with its stored representation. If they
		606	differ, it redraws the differences.
		607
		608	Used after changing terminal contents to display them.
		609
		610	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
		611
		612	Returns the text of the entire row with number C<$row_number>. Row C<0>
		613	is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost
		614	terminal line. The scrollback buffer starts at line C<-1> and extends to
		615	line C<< -$term->nsaved >>. Nothing will be returned if a nonexistent line
		616	is requested.
		617
		618	If C<$new_text> is specified, it will replace characters in the current
		619	line, starting at column C<$start_col> (default C<0>), which is useful
		620	to replace only parts of a line. The font index in the rendition will
		621	automatically be updated.
		622
		623	C<$text> is in a special encoding: tabs and wide characters that use more
		624	than one cell when displayed are padded with urxvt::NOCHAR characters
		625	(C<chr 65535>). Characters with combining characters and other characters
		626	that do not fit into the normal tetx encoding will be replaced with
		627	characters in the private use area.
		628
		629	You have to obey this encoding when changing text. The advantage is
		630	that C<substr> and similar functions work on screen cells and not on
		631	characters.
		632
		633	The methods C<< $term->special_encode >> and C<< $term->special_decode >>
		634	can be used to convert normal strings into this encoding and vice versa.
		635
		636	=item $rend = $term->ROW_r ($row_number[, $new_rend[, $start_col]])
		637
		638	Like C<< $term->ROW_t >>, but returns an arrayref with rendition
		639	bitsets. Rendition bitsets contain information about colour, font, font
		640	styles and similar information. See also C<< $term->ROW_t >>.
		641
		642	When setting rendition, the font mask will be ignored.
		643
		644	See the section on RENDITION, above.
		645
		646	=item $length = $term->ROW_l ($row_number[, $new_length])
		647
		648	Returns the number of screen cells that are in use ("the line
		649	length"). Unlike the urxvt core, this returns C<< $term->ncol >> if the
		650	line is joined with the following one.
		651
		652	=item $bool = $term->is_longer ($row_number)
		653
		654	Returns true if the row is part of a multiple-row logical "line" (i.e.
		655	joined with the following row), which means all characters are in use
		656	and it is continued on the next row (and possibly a continuation of the
		657	previous row(s)).
		658
		659	=item $line = $term->line ($row_number)
		660
		661	Create and return a new C<urxvt::line> object that stores information
		662	about the logical line that row C<$row_number> is part of. It supports the
		663	following methods:
		664
		665	=over 4
		666
		667	=item $text = $line->t
		668
		669	Returns the full text of the line, similar to C<ROW_t>
		670
		671	=item $rend = $line->r
		672
		673	Returns the full rendition array of the line, similar to C<ROW_r>
		674
		675	=item $length = $line->l
		676
		677	Returns the length of the line in cells, similar to C<ROW_l>.
		678
		679	=item $rownum = $line->beg
		680
		681	=item $rownum = $line->end
		682
		683	Return the row number of the first/last row of the line, respectively.
		684
		685	=item $offset = $line->offset_of ($row, $col)
		686
		687	Returns the character offset of the given row\|col pair within the logical
		688	line.
		689
		690	=item ($row, $col) = $line->coord_of ($offset)
		691
		692	Translates a string offset into terminal coordinates again.
		693
		694	=back
		695
		696	=cut
		697
		698	sub urxvt::term::line {
		699	my ($self, $row) = @_;
		700
		701	my $maxrow = $self->nrow - 1;
		702
		703	my ($beg, $end) = ($row, $row);
		704
		705	--$beg while $self->ROW_is_longer ($beg - 1);
		706	++$end while $self->ROW_is_longer ($end) && $end < $maxrow;
		707
		708	bless {
		709	term => $self,
		710	beg => $beg,
		711	end => $end,
		712	len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),
		713	}, urxvt::line::
		714	}
		715
		716	sub urxvt::line::t {
		717	my ($self) = @_;
		718
		719	substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),
		720	0, $self->{len}
		721	}
		722
		723	sub urxvt::line::r {
		724	my ($self) = @_;
		725
		726	my $rend = [
		727	map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}
		728	];
		729	$#$rend = $self->{len} - 1;
		730	$rend
		731	}
		732
		733	sub urxvt::line::beg { $_[0]{beg} }
		734	sub urxvt::line::end { $_[0]{end} }
		735	sub urxvt::line::l { $_[0]{len} }
		736
		737	sub urxvt::line::offset_of {
		738	my ($self, $row, $col) = @_;
		739
		740	($row - $self->{beg}) * $self->{term}->ncol + $col
		741	}
		742
		743	sub urxvt::line::coord_of {
		744	my ($self, $offset) = @_;
		745
		746	use integer;
		747
		748	(
		749	$offset / $self->{term}->ncol + $self->{beg},
		750	$offset % $self->{term}->ncol
		751	)
		752	}
		753
		754	=item ($row, $col) = $line->coord_of ($offset)
		755	=item $text = $term->special_encode $string
		756
		757	Converts a perl string into the special encoding used by rxvt-unicode,
		758	where one character corresponds to one screen cell. See
		759	C<< $term->ROW_t >> for details.
		760
		761	=item $string = $term->special_decode $text
		762
		763	Converts rxvt-unicodes text reprsentation into a perl string. See
		764	C<< $term->ROW_t >> for details.
296		765
297	=back	766	=back
298		767
299	=head2 The C<urxvt::timer> Class	768	=head2 The C<urxvt::timer> Class
300		769
301	This class implements timer watchers/events. Time is represented as a	770	This class implements timer watchers/events. Time is represented as a
302	fractional number of seconds since the epoch. Example:	771	fractional number of seconds since the epoch. Example:
303		772
304	# create a digital clock display in upper right corner	773	$term->{overlay} = $term->overlay (-1, 0, 8, 1, urxvt::OVERLAY_RSTYLE, 0);
305	$term->{timer} = urxvt::timer	774	$term->{timer} = urxvt::timer
306	->new	775	->new
307	->start (urxvt::NOW)	776	->interval (1)
308	->cb (sub {	777	->cb (sub {
309	my ($timer) = @_;
310	my $time = $timer->at;
311	$timer->start ($time + 1);
312	$self->scr_overlay (-1, 0,	778	$term->{overlay}->set (0, 0,
313	POSIX::strftime "%H:%M:%S", localtime $time);	779	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
314	});	780	});
315		781
316	=over 4	782	=over 4
317		783
318	=item $timer = new urxvt::timer	784	=item $timer = new urxvt::timer
319		785
320	Create a new timer object in stopped state.	786	Create a new timer object in started state. It is scheduled to fire
		787	immediately.
321		788
322	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })	789	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })
323		790
324	Set the callback to be called when the timer triggers.	791	Set the callback to be called when the timer triggers.
325		792
…		…
328	Return the time this watcher will fire next.	795	Return the time this watcher will fire next.
329		796
330	=item $timer = $timer->set ($tstamp)	797	=item $timer = $timer->set ($tstamp)
331		798
332	Set the time the event is generated to $tstamp.	799	Set the time the event is generated to $tstamp.
		800
		801	=item $timer = $timer->interval ($interval)
		802
		803	Normally (and when C<$interval> is C<0>), the timer will automatically
		804	stop after it has fired once. If C<$interval> is non-zero, then the timer
		805	is automatically rescheduled at the given intervals.
333		806
334	=item $timer = $timer->start	807	=item $timer = $timer->start
335		808
336	Start the timer.	809	Start the timer.
337		810
…		…
391		864
392	Stop watching for events on the given filehandle.	865	Stop watching for events on the given filehandle.
393		866
394	=back	867	=back
395		868
		869	=head1 ENVIRONMENT
		870
		871	=head2 URXVT_PERL_VERBOSITY
		872
		873	This variable controls the verbosity level of the perl extension. Higher
		874	numbers indicate more verbose output.
		875
		876	=over 4
		877
		878	=item =0 - only fatal messages
		879
		880	=item =3 - script loading and management
		881
		882	=item =10 - all events received
		883
		884	=back
		885
396	=head1 AUTHOR	886	=head1 AUTHOR
397		887
398	Marc Lehmann <pcg@goof.com>	888	Marc Lehmann <pcg@goof.com>
399	http://software.schmorp.de/pkg/rxvt-unicode	889	http://software.schmorp.de/pkg/rxvt-unicode
400		890

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Comparing rxvt-unicode/src/urxvt.pm (file contents): Revision 1.3 by root, Mon Jan 2 15:59:25 2006 UTC vs. Revision 1.31 by root, Wed Jan 4 19:39:46 2006 UTC

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Comparing rxvt-unicode/src/urxvt.pm (file contents):
Revision 1.3 by root, Mon Jan 2 15:59:25 2006 UTC vs.
Revision 1.31 by root, Wed Jan 4 19:39:46 2006 UTC