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Revision 1.15 by root, Tue Jan 3 01:39:17 2006 UTC vs.
Revision 1.32 by root, Wed Jan 4 21:37:55 2006 UTC

1=encoding utf8
2
1=head1 NAME 3=head1 NAME
2 4
3@@RXVT_NAME@@perl - rxvt-unicode's embedded perl interpreter 5@@RXVT_NAME@@perl - rxvt-unicode's embedded perl interpreter
4 6
5=head1 SYNOPSIS 7=head1 SYNOPSIS
22 24
23Scripts are compiled in a 'use strict' and 'use utf8' environment, and 25Scripts are compiled in a 'use strict' and 'use utf8' environment, and
24thus must be encoded as UTF-8. 26thus must be encoded as UTF-8.
25 27
26Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where 28Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where
27scripts will be shared (But not enabled) for all terminals. 29scripts will be shared (but not enabled) for all terminals.
28 30
29=head1 PACKAGED EXTENSIONS 31=head2 Prepackaged Extensions
30 32
31This section describes the extensiosn delivered with this version. You can 33This section describes the extensiosn delivered with this version. You can
32find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>. 34find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.
33 35
34You can activate them like this: 36You can activate them like this:
37 39
38=over 4 40=over 4
39 41
40=item selection 42=item selection
41 43
42Miscellaneous selection modifications. 44Intelligent selection. This extension tries to be more intelligent when
45the user extends selections (double-click). Right now, it tries to select
46urls and complete shell-quoted arguments, which is very convenient, too,
47if your F<ls> supports C<--quoting-style=shell>.
48
49It also offers the following bindable event:
43 50
44=over 4 51=over 4
45 52
46=item rot13 53=item rot13
47 54
50 URxvt.keysym.C-M-r: perl:selection:rot13 57 URxvt.keysym.C-M-r: perl:selection:rot13
51 58
52=back 59=back
53 60
54=item digital-clock 61=item digital-clock
62
63Displays a digital clock using the built-in overlay.
64
65=item example-refresh-hooks
55 66
56Displays a very simple digital clock in the upper right corner of the 67Displays a very simple digital clock in the upper right corner of the
57window. Illustrates overwriting the refresh callbacks to create your own 68window. Illustrates overwriting the refresh callbacks to create your own
58overlays or changes. 69overlays or changes.
59 70
60=item simple-overlay-clock
61
62Displays a digital clock using the built-in overlay (colorful, useless).
63
64=back 71=back
65 72
66=head2 General API Considerations 73=head2 General API Considerations
67 74
68All objects (such as terminals, time watchers etc.) are typical 75All objects (such as terminals, time watchers etc.) are typical
69reference-to-hash objects. The hash can be used to store anything you 76reference-to-hash objects. The hash can be used to store anything you
70like. All members starting with an underscore (such as C<_ptr> or 77like. All members starting with an underscore (such as C<_ptr> or
71C<_hook>) are reserved for internal uses and must not be accessed or 78C<_hook>) are reserved for internal uses and B<MUST NOT> be accessed or
72modified). 79modified).
73 80
74When objects are destroyed on the C++ side, the perl object hashes are 81When objects are destroyed on the C++ side, the perl object hashes are
75emptied, so its best to store related objects such as time watchers and 82emptied, so its best to store related objects such as time watchers and
76the like inside the terminal object so they get destroyed as soon as the 83the like inside the terminal object so they get destroyed as soon as the
77terminal is destroyed. 84terminal is destroyed.
78 85
79=head2 Hooks 86=head2 Hooks
80 87
81The following subroutines can be declared in loaded scripts, and will be called 88The following subroutines can be declared in loaded scripts, and will be
82whenever the relevant event happens. 89called whenever the relevant event happens.
90
91The first argument passed to them is an object private to each terminal
92and extension package. You can call all C<urxvt::term> methods on it, but
93its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
94object that is shared between all packages is stored in the C<term>
95member.
83 96
84All of them must return a boolean value. If it is true, then the event 97All of them must return a boolean value. If it is true, then the event
85counts as being I<consumed>, and the invocation of other hooks is skipped, 98counts as being I<consumed>, and the invocation of other hooks is skipped,
86and the relevant action might not be carried out by the C++ code. 99and the relevant action might not be carried out by the C++ code.
87 100
120requested from the server. The selection text can be queried and changed 133requested from the server. The selection text can be queried and changed
121by calling C<< $term->selection >>. 134by calling C<< $term->selection >>.
122 135
123Returning a true value aborts selection grabbing. It will still be hilighted. 136Returning a true value aborts selection grabbing. It will still be hilighted.
124 137
138=item on_sel_extend $term
139
140Called whenever the user tries to extend the selection (e.g. with a double
141click) and is either supposed to return false (normal operation), or
142should extend the selection itelf and return true to suppress the built-in
143processing.
144
145See the F<selection> example extension.
146
125=item on_focus_in $term 147=item on_focus_in $term
126 148
127Called whenever the window gets the keyboard focus, before urxvt does 149Called whenever the window gets the keyboard focus, before urxvt does
128focus in processing. 150focus in processing.
129 151
149number of lines that will be in the scrollback buffer. 171number of lines that will be in the scrollback buffer.
150 172
151=item on_tty_activity $term *NYI* 173=item on_tty_activity $term *NYI*
152 174
153Called whenever the program(s) running in the urxvt window send output. 175Called whenever the program(s) running in the urxvt window send output.
176
177=item on_osc_seq $term, $string
178
179Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
180operating system command) is processed. Cursor position and other state
181information is up-to-date when this happens. For interoperability, the
182string should start with the extension name and a colon, to distinguish
183it from commands for other extensions, and this might be enforced in the
184future.
185
186Be careful not ever to trust (in a security sense) the data you receive,
187as its source can not easily be controleld (e-mail content, messages from
188other users on the same system etc.).
154 189
155=item on_refresh_begin $term 190=item on_refresh_begin $term
156 191
157Called just before the screen gets redrawn. Can be used for overlay 192Called just before the screen gets redrawn. Can be used for overlay
158or similar effects by modify terminal contents in refresh_begin, and 193or similar effects by modify terminal contents in refresh_begin, and
169C<perl:string> action bound to it (see description of the B<keysym> 204C<perl:string> action bound to it (see description of the B<keysym>
170resource in the @@RXVT_NAME@@(1) manpage). 205resource in the @@RXVT_NAME@@(1) manpage).
171 206
172=back 207=back
173 208
209=head2 Variables in the C<urxvt> Package
210
211=over 4
212
213=item $urxvt::TERM
214
215The current terminal. Whenever a callback/Hook is bein executed, this
216variable stores the current C<urxvt::term> object.
217
218=back
219
174=head2 Functions in the C<urxvt> Package 220=head2 Functions in the C<urxvt> Package
175 221
176=over 4 222=over 4
177 223
178=item urxvt::fatal $errormessage 224=item urxvt::fatal $errormessage
192 238
193=item $time = urxvt::NOW 239=item $time = urxvt::NOW
194 240
195Returns the "current time" (as per the event loop). 241Returns the "current time" (as per the event loop).
196 242
243=back
244
245=head2 RENDITION
246
247Rendition bitsets contain information about colour, font, font styles and
248similar information for each screen cell.
249
250The following "macros" deal with changes in rendition sets. You should
251never just create a bitset, you should always modify an existing one,
252as they contain important information required for correct operation of
253rxvt-unicode.
254
255=over 4
256
257=item $rend = urxvt::DEFAULT_RSTYLE
258
259Returns the default rendition, as used when the terminal is starting up or
260being reset. Useful as a base to start when creating renditions.
261
262=item $rend = urxvt::OVERLAY_RSTYLE
263
264Return the rendition mask used for overlays by default.
265
266=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline
267
268Return the bit that enabled bold, italic, blink, reverse-video and
269underline, respectively. To enable such a style, just logically OR it into
270the bitset.
271
272=item $foreground = urxvt::GET_BASEFG $rend
273
274=item $background = urxvt::GET_BASEBG $rend
275
276Return 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
282Replace the foreground/background colour in the rendition mask with the
283specified one.
284
285=item $value = urxvt::GET_CUSTOM ($rend)
286
287Return the "custom" value: Every rendition has 5 bits for use by
288extensions. They can be set and changed as you like and are initially
289zero.
290
291=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)
292
293Change the custom value.
294
295=back
296
197=cut 297=cut
198 298
199package urxvt; 299package urxvt;
200 300
201use strict; 301use strict;
302use Scalar::Util ();
202 303
203our $term; 304our $TERM;
204our @HOOKNAME; 305our @HOOKNAME;
205our $LIBDIR; 306our $LIBDIR;
206 307
207BEGIN { 308BEGIN {
208 urxvt->bootstrap; 309 urxvt->bootstrap;
233 my $name = $HOOKNAME[$htype]; 334 my $name = $HOOKNAME[$htype];
234 335
235 my $ref = $pkg->can ("on_" . lc $name) 336 my $ref = $pkg->can ("on_" . lc $name)
236 or next; 337 or next;
237 338
238 $term->{_hook}[$htype]{$ref*1} = $ref; 339 $TERM->{_hook}[$htype]{$pkg} = $ref;
239 $hook_count[$htype]++ 340 $hook_count[$htype]++
240 or set_should_invoke $htype, 1; 341 or set_should_invoke $htype, 1;
241 } 342 }
242} 343}
243 344
265 366
266 $pkg 367 $pkg
267 } 368 }
268} 369}
269 370
371our $retval; # return value for urxvt
372
270# called by the rxvt core 373# called by the rxvt core
271sub invoke { 374sub invoke {
272 local $term = shift; 375 local $TERM = shift;
273 my $htype = shift; 376 my $htype = shift;
274 377
275 if ($htype == 0) { # INIT 378 if ($htype == 0) { # INIT
276 my @dirs = ((split /:/, $term->resource ("perl_lib")), "$LIBDIR/perl"); 379 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
277 380
278 for my $ext (split /:/, $term->resource ("perl_ext")) { 381 for my $ext (map { split /:/, $TERM->resource ("perl_ext_$_") } 1, 2) {
279 my @files = grep -f $_, map "$_/$ext", @dirs; 382 my @files = grep -f $_, map "$_/$ext", @dirs;
280 383
281 if (@files) { 384 if (@files) {
282 register_package script_package $files[0]; 385 register_package script_package $files[0];
283 } else { 386 } else {
284 warn "perl extension '$ext' not found in perl library search path\n"; 387 warn "perl extension '$ext' not found in perl library search path\n";
285 } 388 }
286 } 389 }
390 }
287 391
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 $proxy
406 },
407 @_,
408 ) and last;
409 }
410 }
411
288 } elsif ($htype == 1) { # DESTROY 412 if ($htype == 1) { # DESTROY
413 # remove hooks if unused
289 if (my $hook = $term->{_hook}) { 414 if (my $hook = $TERM->{_hook}) {
290 for my $htype (0..$#$hook) { 415 for my $htype (0..$#$hook) {
291 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} } 416 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
292 or set_should_invoke $htype, 0; 417 or set_should_invoke $htype, 0;
293 } 418 }
294 } 419 }
420
421 # clear package objects
422 %$_ = () for values %{ $TERM->{_pkg} };
423
424 # clear package
425 %$TERM = ();
295 } 426 }
296 427
297 my $cb = $term->{_hook}[$htype] 428 $retval
298 or return;
299
300 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $term, @_) . ")"
301 if $verbosity >= 10;
302
303 while (my ($k, $v) = each %$cb) {
304 return 1 if $v->($term, @_);
305 }
306
307 0
308} 429}
309 430
310=back 431sub 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}
311 445
312=head2 The C<urxvt::term> Class 446=head2 The C<urxvt::term> Class
313 447
314=over 4 448=over 4
315 449
337 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 471 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
338 borderLess color cursorBlink cursorUnderline cutchars delete_key 472 borderLess color cursorBlink cursorUnderline cutchars delete_key
339 display_name embed ext_bwidth fade font geometry hold iconName 473 display_name embed ext_bwidth fade font geometry hold iconName
340 imFont imLocale inputMethod insecure int_bwidth intensityStyles 474 imFont imLocale inputMethod insecure int_bwidth intensityStyles
341 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 475 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier
342 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext 476 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2
343 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 477 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd
344 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 478 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating
345 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 479 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput
346 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 480 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle
347 shade term_name title transparent transparent_all tripleclickwords 481 shade term_name title transparent transparent_all tripleclickwords
353 my ($self, $name) = (shift, shift); 487 my ($self, $name) = (shift, shift);
354 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 488 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
355 goto &urxvt::term::_resource; 489 goto &urxvt::term::_resource;
356} 490}
357 491
492=item $rend = $term->screen_rstyle ([$new_rstyle])
493
494Return and optionally change the current rendition. Text thta is output by
495the temrianl application will use this style.
496
497=item ($row, $col) = $term->screen_cur ([$row, $col])
498
499Return the current coordinates of the text cursor position and optionally
500set it (which is usually bad as applications don't expect that).
501
358=item ($row, $col) = $term->selection_mark ([$row, $col]) 502=item ($row, $col) = $term->selection_mark ([$row, $col])
359 503
360=item ($row, $col) = $term->selection_beg ([$row, $col]) 504=item ($row, $col) = $term->selection_beg ([$row, $col])
361 505
362=item ($row, $col) = $term->selection_end ([$row, $col]) 506=item ($row, $col) = $term->selection_end ([$row, $col])
371 515
372=item $oldtext = $term->selection ([$newtext]) 516=item $oldtext = $term->selection ([$newtext])
373 517
374Return the current selection text and optionally replace it by C<$newtext>. 518Return the current selection text and optionally replace it by C<$newtext>.
375 519
376=item $term->scr_overlay ($x, $y, $text) 520#=item $term->overlay ($x, $y, $text)
377 521#
378Create a simple multi-line overlay box. See the next method for details. 522#Create a simple multi-line overlay box. See the next method for details.
379 523#
380=cut 524#=cut
381 525
382sub urxvt::term::scr_overlay { 526sub urxvt::term::scr_overlay {
527die;
383 my ($self, $x, $y, $text) = @_; 528 my ($self, $x, $y, $text) = @_;
384 529
385 my @lines = split /\n/, $text; 530 my @lines = split /\n/, $text;
386 531
387 my $w = 0; 532 my $w = 0;
391 536
392 $self->scr_overlay_new ($x, $y, $w, scalar @lines); 537 $self->scr_overlay_new ($x, $y, $w, scalar @lines);
393 $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines; 538 $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;
394} 539}
395 540
396=item $term->scr_overlay_new ($x, $y, $width, $height) 541=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
397 542
398Create a new (empty) overlay at the given position with the given 543Create a new (empty) overlay at the given position with the given
399width/height. A border will be put around the box. If either C<$x> or 544width/height. C<$rstyle> defines the initial rendition style
400C<$y> is negative, then this is counted from the right/bottom side, 545(default: C<OVERLAY_RSTYLE>).
401respectively.
402 546
403=item $term->scr_overlay_off 547If C<$border> is C<2> (default), then a decorative border will be put
548around the box.
404 549
405Switch the overlay off again. 550If either C<$x> or C<$y> is negative, then this is counted from the
551right/bottom side, respectively.
406 552
407=item $term->scr_overlay_set_char ($x, $y, $char, $rend = OVERLAY_RSTYLE) 553This method returns an urxvt::overlay object. The overlay will be visible
554as long as the perl object is referenced.
408 555
409Put a single character (specified numerically) at the given overlay 556The methods currently supported on C<urxvt::overlay> objects are:
410position.
411 557
558=over 4
559
412=item $term->scr_overlay_set ($x, $y, $text) 560=item $overlay->set ($x, $y, $text, $rend)
413 561
414Write a string at the given position into the overlay. 562Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts
563text in rxvt-unicode's special encoding and an array of rendition values
564at a specific position inside the overlay.
565
566=item $overlay->hide
567
568If visible, hide the overlay, but do not destroy it.
569
570=item $overlay->show
571
572If hidden, display the overlay again.
573
574=back
415 575
416=item $cellwidth = $term->strwidth $string 576=item $cellwidth = $term->strwidth $string
417 577
418Returns the number of screen-cells this string would need. Correctly 578Returns the number of screen-cells this string would need. Correctly
419accounts for wide and combining characters. 579accounts for wide and combining characters.
430 590
431Write the octets given in C<$data> to the tty (i.e. as program input). To 591Write the octets given in C<$data> to the tty (i.e. as program input). To
432pass characters instead of octets, you should convert your strings first 592pass characters instead of octets, you should convert your strings first
433to the locale-specific encoding using C<< $term->locale_encode >>. 593to the locale-specific encoding using C<< $term->locale_encode >>.
434 594
595=item $window_width = $term->width
596
597=item $window_height = $term->height
598
599=item $font_width = $term->fwidth
600
601=item $font_height = $term->fheight
602
603=item $font_ascent = $term->fbase
604
435=item $nrow = $term->nrow 605=item $terminal_rows = $term->nrow
436 606
437=item $ncol = $term->ncol 607=item $terminal_columns = $term->ncol
438 608
439Return the number of rows/columns of the terminal window (i.e. as 609=item $has_focus = $term->focus
440specified by C<-geometry>, excluding any scrollback).
441 610
442=item $nsaved = $term->nsaved 611=item $is_mapped = $term->mapped
443 612
444Returns the number of lines in the scrollback buffer. 613=item $max_scrollback = $term->saveLines
614
615=item $nrow_plus_saveLines = $term->total_rows
616
617=item $lines_in_scrollback = $term->nsaved
618
619Return various integers describing terminal characteristics.
445 620
446=item $view_start = $term->view_start ([$newvalue]) 621=item $view_start = $term->view_start ([$newvalue])
447 622
448Returns the negative row number of the topmost line. Minimum value is 623Returns the negative row number of the topmost line. Minimum value is
449C<0>, which displays the normal terminal contents. Larger values scroll 624C<0>, which displays the normal terminal contents. Larger values scroll
460=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]]) 635=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
461 636
462Returns the text of the entire row with number C<$row_number>. Row C<0> 637Returns the text of the entire row with number C<$row_number>. Row C<0>
463is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost 638is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost
464terminal line. The scrollback buffer starts at line C<-1> and extends to 639terminal line. The scrollback buffer starts at line C<-1> and extends to
465line C<< -$term->nsaved >>. 640line C<< -$term->nsaved >>. Nothing will be returned if a nonexistent line
641is requested.
466 642
467If C<$new_text> is specified, it will replace characters in the current 643If C<$new_text> is specified, it will replace characters in the current
468line, starting at column C<$start_col> (default C<0>), which is useful 644line, starting at column C<$start_col> (default C<0>), which is useful
469to replace only parts of a line. The font iindex in the rendition will 645to replace only parts of a line. The font index in the rendition will
470automatically be updated. 646automatically be updated.
471 647
472C<$text> is in a special encoding: tabs and wide characters that use more 648C<$text> is in a special encoding: tabs and wide characters that use more
473than one cell when displayed are padded with urxvt::NOCHAR characters 649than one cell when displayed are padded with urxvt::NOCHAR characters
474(C<chr 65535>). Characters with combining characters and other characters 650(C<chr 65535>). Characters with combining characters and other characters
488bitsets. Rendition bitsets contain information about colour, font, font 664bitsets. Rendition bitsets contain information about colour, font, font
489styles and similar information. See also C<< $term->ROW_t >>. 665styles and similar information. See also C<< $term->ROW_t >>.
490 666
491When setting rendition, the font mask will be ignored. 667When setting rendition, the font mask will be ignored.
492 668
493See the section on RENDITION, below. 669See the section on RENDITION, above.
494 670
495=item $length = $term->ROW_l ($row_number[, $new_length]) 671=item $length = $term->ROW_l ($row_number[, $new_length])
496 672
497Returns the number of screen cells that are in use ("the line length"). If 673Returns the number of screen cells that are in use ("the line
498it is C<-1>, then the line is part of a multiple-row logical "line", which 674length"). Unlike the urxvt core, this returns C<< $term->ncol >> if the
499means all characters are in use and it is continued on the next row. 675line is joined with the following one.
500 676
677=item $bool = $term->is_longer ($row_number)
678
679Returns true if the row is part of a multiple-row logical "line" (i.e.
680joined with the following row), which means all characters are in use
681and it is continued on the next row (and possibly a continuation of the
682previous row(s)).
683
684=item $line = $term->line ($row_number)
685
686Create and return a new C<urxvt::line> object that stores information
687about the logical line that row C<$row_number> is part of. It supports the
688following methods:
689
690=over 4
691
692=item $text = $line->t
693
694Returns the full text of the line, similar to C<ROW_t>
695
696=item $rend = $line->r
697
698Returns the full rendition array of the line, similar to C<ROW_r>
699
700=item $length = $line->l
701
702Returns the length of the line in cells, similar to C<ROW_l>.
703
704=item $rownum = $line->beg
705
706=item $rownum = $line->end
707
708Return the row number of the first/last row of the line, respectively.
709
710=item $offset = $line->offset_of ($row, $col)
711
712Returns the character offset of the given row|col pair within the logical
713line.
714
715=item ($row, $col) = $line->coord_of ($offset)
716
717Translates a string offset into terminal coordinates again.
718
719=back
720
721=cut
722
723sub urxvt::term::line {
724 my ($self, $row) = @_;
725
726 my $maxrow = $self->nrow - 1;
727
728 my ($beg, $end) = ($row, $row);
729
730 --$beg while $self->ROW_is_longer ($beg - 1);
731 ++$end while $self->ROW_is_longer ($end) && $end < $maxrow;
732
733 bless {
734 term => $self,
735 beg => $beg,
736 end => $end,
737 len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),
738 }, urxvt::line::
739}
740
741sub urxvt::line::t {
742 my ($self) = @_;
743
744 substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),
745 0, $self->{len}
746}
747
748sub urxvt::line::r {
749 my ($self) = @_;
750
751 my $rend = [
752 map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}
753 ];
754 $#$rend = $self->{len} - 1;
755 $rend
756}
757
758sub urxvt::line::beg { $_[0]{beg} }
759sub urxvt::line::end { $_[0]{end} }
760sub urxvt::line::l { $_[0]{len} }
761
762sub urxvt::line::offset_of {
763 my ($self, $row, $col) = @_;
764
765 ($row - $self->{beg}) * $self->{term}->ncol + $col
766}
767
768sub urxvt::line::coord_of {
769 my ($self, $offset) = @_;
770
771 use integer;
772
773 (
774 $offset / $self->{term}->ncol + $self->{beg},
775 $offset % $self->{term}->ncol
776 )
777}
778
779=item ($row, $col) = $line->coord_of ($offset)
501=item $text = $term->special_encode $string 780=item $text = $term->special_encode $string
502 781
503Converts a perl string into the special encoding used by rxvt-unicode, 782Converts a perl string into the special encoding used by rxvt-unicode,
504where one character corresponds to one screen cell. See 783where one character corresponds to one screen cell. See
505C<< $term->ROW_t >> for details. 784C<< $term->ROW_t >> for details.
509Converts rxvt-unicodes text reprsentation into a perl string. See 788Converts rxvt-unicodes text reprsentation into a perl string. See
510C<< $term->ROW_t >> for details. 789C<< $term->ROW_t >> for details.
511 790
512=back 791=back
513 792
514=head2 RENDITION
515
516Rendition bitsets contain information about colour, font, font styles and
517similar information for each screen cell.
518
519The following "macros" deal with changes in rendition sets. You should
520never just create a bitset, you should always modify an existing one,
521as they contain important information required for correct operation of
522rxvt-unicode.
523
524=over 4
525
526=item $rend = urxvt::DEFAULT_RSTYLE
527
528Returns the default rendition, as used when the terminal is starting up or
529being reset. Useful as a base
530
531=back
532
533=cut
534
535=head2 The C<urxvt::timer> Class 793=head2 The C<urxvt::timer> Class
536 794
537This class implements timer watchers/events. Time is represented as a 795This class implements timer watchers/events. Time is represented as a
538fractional number of seconds since the epoch. Example: 796fractional number of seconds since the epoch. Example:
539 797
540 # create a digital clock display in upper right corner 798 $term->{overlay} = $term->overlay (-1, 0, 8, 1, urxvt::OVERLAY_RSTYLE, 0);
541 $term->{timer} = urxvt::timer 799 $term->{timer} = urxvt::timer
542 ->new 800 ->new
543 ->start (urxvt::NOW) 801 ->interval (1)
544 ->cb (sub { 802 ->cb (sub {
545 my ($timer) = @_;
546 my $time = $timer->at;
547 $timer->start ($time + 1);
548 $self->scr_overlay (-1, 0, 803 $term->{overlay}->set (0, 0,
549 POSIX::strftime "%H:%M:%S", localtime $time); 804 sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
550 }); 805 });
551 806
552=over 4 807=over 4
553 808
554=item $timer = new urxvt::timer 809=item $timer = new urxvt::timer
555 810
556Create a new timer object in stopped state. 811Create a new timer object in started state. It is scheduled to fire
812immediately.
557 813
558=item $timer = $timer->cb (sub { my ($timer) = @_; ... }) 814=item $timer = $timer->cb (sub { my ($timer) = @_; ... })
559 815
560Set the callback to be called when the timer triggers. 816Set the callback to be called when the timer triggers.
561 817
564Return the time this watcher will fire next. 820Return the time this watcher will fire next.
565 821
566=item $timer = $timer->set ($tstamp) 822=item $timer = $timer->set ($tstamp)
567 823
568Set the time the event is generated to $tstamp. 824Set the time the event is generated to $tstamp.
825
826=item $timer = $timer->interval ($interval)
827
828Normally (and when C<$interval> is C<0>), the timer will automatically
829stop after it has fired once. If C<$interval> is non-zero, then the timer
830is automatically rescheduled at the given intervals.
569 831
570=item $timer = $timer->start 832=item $timer = $timer->start
571 833
572Start the timer. 834Start the timer.
573 835
636This variable controls the verbosity level of the perl extension. Higher 898This variable controls the verbosity level of the perl extension. Higher
637numbers indicate more verbose output. 899numbers indicate more verbose output.
638 900
639=over 4 901=over 4
640 902
641=item 0 - only fatal messages 903=item =0 - only fatal messages
642 904
643=item 3 - script loading and management 905=item =3 - script loading and management
644 906
645=item 10 - all events received 907=item =10 - all events received
646 908
647=back 909=back
648 910
649=head1 AUTHOR 911=head1 AUTHOR
650 912

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