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Revision 1.13 by root, Tue Jan 3 00:06:57 2006 UTC vs.
Revision 1.22 by root, Tue Jan 3 19:10:54 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.
30
31=head2 Prepackaged Extensions
32
33This section describes the extensiosn delivered with this version. You can
34find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.
35
36You can activate them like this:
37
38 @@RXVT_NAME@@ -pe <extensionname>
39
40=over 4
41
42=item selection
43
44Intelligent selection. This etxension tries to be more intelligent when the user
45extends selections (double-click).
46
47It also offers the following bindable event:
48
49=over 4
50
51=item rot13
52
53Rot-13 the selection when activated. Used via keyboard trigger:
54
55 URxvt.keysym.C-M-r: perl:selection:rot13
56
57=back
58
59=item digital-clock
60
61Displays a digital clock using the built-in overlay.
62
63=item example-refresh-hooks
64
65Displays a very simple digital clock in the upper right corner of the
66window. Illustrates overwriting the refresh callbacks to create your own
67overlays or changes.
68
69=back
28 70
29=head2 General API Considerations 71=head2 General API Considerations
30 72
31All objects (such as terminals, time watchers etc.) are typical 73All objects (such as terminals, time watchers etc.) are typical
32reference-to-hash objects. The hash can be used to store anything you 74reference-to-hash objects. The hash can be used to store anything you
83requested from the server. The selection text can be queried and changed 125requested from the server. The selection text can be queried and changed
84by calling C<< $term->selection >>. 126by calling C<< $term->selection >>.
85 127
86Returning a true value aborts selection grabbing. It will still be hilighted. 128Returning a true value aborts selection grabbing. It will still be hilighted.
87 129
130=item on_sel_extend $term
131
132Called whenever the user tries to extend the selection (e.g. with a double
133click) and is either supposed to return false (normal operation), or
134should extend the selection itelf and return true to suppress the built-in
135processing.
136
137See the F<selection> example extension.
138
88=item on_focus_in $term 139=item on_focus_in $term
89 140
90Called whenever the window gets the keyboard focus, before urxvt does 141Called whenever the window gets the keyboard focus, before urxvt does
91focus in processing. 142focus in processing.
92 143
154correct place, e.g. on stderr of the connecting urxvtc client. 205correct place, e.g. on stderr of the connecting urxvtc client.
155 206
156=item $time = urxvt::NOW 207=item $time = urxvt::NOW
157 208
158Returns the "current time" (as per the event loop). 209Returns the "current time" (as per the event loop).
210
211=back
212
213=head2 RENDITION
214
215Rendition bitsets contain information about colour, font, font styles and
216similar information for each screen cell.
217
218The following "macros" deal with changes in rendition sets. You should
219never just create a bitset, you should always modify an existing one,
220as they contain important information required for correct operation of
221rxvt-unicode.
222
223=over 4
224
225=item $rend = urxvt::DEFAULT_RSTYLE
226
227Returns the default rendition, as used when the terminal is starting up or
228being reset. Useful as a base to start when creating renditions.
229
230=item $rend = urxvt::OVERLAY_RSTYLE
231
232Return the rendition mask used for overlays by default.
233
234=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline
235
236Return the bit that enabled bold, italic, blink, reverse-video and
237underline, respectively. To enable such a style, just logically OR it into
238the bitset.
239
240=item $foreground = urxvt::GET_BASEFG $rend
241
242=item $background = urxvt::GET_BASEBG $rend
243
244Return the foreground/background colour index, respectively.
245
246=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)
247
248=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)
249
250Replace the foreground/background colour in the rendition mask with the
251specified one.
252
253=item $value = urxvt::GET_CUSTOM ($rend)
254
255Return the "custom" value: Every rendition has 5 bits for use by
256extensions. They can be set and changed as you like and are initially
257zero.
258
259=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)
260
261Change the custom value.
262
263=back
159 264
160=cut 265=cut
161 266
162package urxvt; 267package urxvt;
163 268
267 return 1 if $v->($term, @_); 372 return 1 if $v->($term, @_);
268 } 373 }
269 374
270 0 375 0
271} 376}
272
273=back
274 377
275=head2 The C<urxvt::term> Class 378=head2 The C<urxvt::term> Class
276 379
277=over 4 380=over 4
278 381
334 437
335=item $oldtext = $term->selection ([$newtext]) 438=item $oldtext = $term->selection ([$newtext])
336 439
337Return the current selection text and optionally replace it by C<$newtext>. 440Return the current selection text and optionally replace it by C<$newtext>.
338 441
339=item $term->scr_overlay ($x, $y, $text) 442#=item $term->overlay ($x, $y, $text)
340 443#
341Create a simple multi-line overlay box. See the next method for details. 444#Create a simple multi-line overlay box. See the next method for details.
342 445#
343=cut 446#=cut
344 447
345sub urxvt::term::scr_overlay { 448sub urxvt::term::scr_overlay {
449die;
346 my ($self, $x, $y, $text) = @_; 450 my ($self, $x, $y, $text) = @_;
347 451
348 my @lines = split /\n/, $text; 452 my @lines = split /\n/, $text;
349 453
350 my $w = 0; 454 my $w = 0;
354 458
355 $self->scr_overlay_new ($x, $y, $w, scalar @lines); 459 $self->scr_overlay_new ($x, $y, $w, scalar @lines);
356 $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines; 460 $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;
357} 461}
358 462
359=item $term->scr_overlay_new ($x, $y, $width, $height) 463=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
360 464
361Create a new (empty) overlay at the given position with the given 465Create a new (empty) overlay at the given position with the given
362width/height. A border will be put around the box. If either C<$x> or 466width/height. C<$rstyle> defines the initial rendition style
363C<$y> is negative, then this is counted from the right/bottom side, 467(default: C<OVERLAY_RSTYLE>).
364respectively.
365 468
366=item $term->scr_overlay_off 469If C<$border> is C<2> (default), then a decorative border will be put
470around the box.
367 471
368Switch the overlay off again. 472If either C<$x> or C<$y> is negative, then this is counted from the
473right/bottom side, respectively.
369 474
370=item $term->scr_overlay_set_char ($x, $y, $char, $rend = OVERLAY_RSTYLE) 475This method returns an urxvt::overlay object. The overlay will be visible
476as long as the perl object is referenced.
371 477
372Put a single character (specified numerically) at the given overlay 478The methods currently supported on C<urxvt::overlay> objects are:
373position.
374 479
480=over 4
481
375=item $term->scr_overlay_set ($x, $y, $text) 482=item $overlay->set ($x, $y, $text, $rend)
376 483
377Write a string at the given position into the overlay. 484Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts
485text in rxvt-unicode's special encoding and an array of rendition values
486at a specific position inside the overlay.
487
488=item $overlay->hide
489
490If visible, hide the overlay, but do not destroy it.
491
492=item $overlay->show
493
494If hidden, display the overlay again.
495
496=back
378 497
379=item $cellwidth = $term->strwidth $string 498=item $cellwidth = $term->strwidth $string
380 499
381Returns the number of screen-cells this string would need. Correctly 500Returns the number of screen-cells this string would need. Correctly
382accounts for wide and combining characters. 501accounts for wide and combining characters.
409=item $view_start = $term->view_start ([$newvalue]) 528=item $view_start = $term->view_start ([$newvalue])
410 529
411Returns the negative row number of the topmost line. Minimum value is 530Returns the negative row number of the topmost line. Minimum value is
412C<0>, which displays the normal terminal contents. Larger values scroll 531C<0>, which displays the normal terminal contents. Larger values scroll
413this many lines into the scrollback buffer. 532this many lines into the scrollback buffer.
533
534=item $term->want_refresh
535
536Requests a screen refresh. At the next opportunity, rxvt-unicode will
537compare the on-screen display with its stored representation. If they
538differ, it redraws the differences.
539
540Used after changing terminal contents to display them.
414 541
415=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]]) 542=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
416 543
417Returns the text of the entire row with number C<$row_number>. Row C<0> 544Returns the text of the entire row with number C<$row_number>. Row C<0>
418is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost 545is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost
419terminal line. The scrollback buffer starts at line C<-1> and extends to 546terminal line. The scrollback buffer starts at line C<-1> and extends to
420line C<< -$term->nsaved >>. 547line C<< -$term->nsaved >>.
421 548
422If C<$new_text> is specified, it will replace characters in the current 549If C<$new_text> is specified, it will replace characters in the current
423line, starting at column C<$start_col> (default C<0>), which is useful 550line, starting at column C<$start_col> (default C<0>), which is useful
424to replace only parts of a line. The font iindex in the rendition will 551to replace only parts of a line. The font index in the rendition will
425automatically be updated. 552automatically be updated.
426 553
427C<$text> is in a special encoding: tabs and wide characters that use more 554C<$text> is in a special encoding: tabs and wide characters that use more
428than one cell when displayed are padded with urxvt::NOCHAR characters 555than one cell when displayed are padded with urxvt::NOCHAR characters
429(C<chr 65535>). Characters with combining characters and other characters 556(C<chr 65535>). Characters with combining characters and other characters
443bitsets. Rendition bitsets contain information about colour, font, font 570bitsets. Rendition bitsets contain information about colour, font, font
444styles and similar information. See also C<< $term->ROW_t >>. 571styles and similar information. See also C<< $term->ROW_t >>.
445 572
446When setting rendition, the font mask will be ignored. 573When setting rendition, the font mask will be ignored.
447 574
448See the section on RENDITION, below. 575See the section on RENDITION, above.
449 576
450=item $length = $term->ROW_l ($row_number[, $new_length]) 577=item $length = $term->ROW_l ($row_number[, $new_length])
451 578
452Returns the number of screen cells that are in use ("the line length"). If 579Returns the number of screen cells that are in use ("the line length"). If
453it is C<-1>, then the line is part of a multiple-row logical "line", which 580it is C<-1>, then the line is part of a multiple-row logical "line", which
464Converts rxvt-unicodes text reprsentation into a perl string. See 591Converts rxvt-unicodes text reprsentation into a perl string. See
465C<< $term->ROW_t >> for details. 592C<< $term->ROW_t >> for details.
466 593
467=back 594=back
468 595
469=head2 RENDITION
470
471Rendition bitsets contain information about colour, font, font styles and
472similar information for each screen cell.
473
474The following "macros" deal with changes in rendition sets. You should
475never just create a bitset, you should always modify an existing one,
476as they contain important information required for correct operation of
477rxvt-unicode.
478
479=over 4
480
481=item $rend = urxvt::DEFAULT_RSTYLE
482
483Returns the default rendition, as used when the terminal is starting up or
484being reset. Useful as a base
485
486=back
487
488=cut
489
490=head2 The C<urxvt::timer> Class 596=head2 The C<urxvt::timer> Class
491 597
492This class implements timer watchers/events. Time is represented as a 598This class implements timer watchers/events. Time is represented as a
493fractional number of seconds since the epoch. Example: 599fractional number of seconds since the epoch. Example:
494 600
495 # create a digital clock display in upper right corner 601 $term->{overlay} = $term->overlay (-1, 0, 8, 1, urxvt::OVERLAY_RSTYLE, 0);
496 $term->{timer} = urxvt::timer 602 $term->{timer} = urxvt::timer
497 ->new 603 ->new
498 ->start (urxvt::NOW) 604 ->interval (1)
499 ->cb (sub { 605 ->cb (sub {
500 my ($timer) = @_;
501 my $time = $timer->at;
502 $timer->start ($time + 1);
503 $self->scr_overlay (-1, 0, 606 $term->{overlay}->set (0, 0,
504 POSIX::strftime "%H:%M:%S", localtime $time); 607 sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
505 }); 608 });
506 609
507=over 4 610=over 4
508 611
509=item $timer = new urxvt::timer 612=item $timer = new urxvt::timer
510 613
511Create a new timer object in stopped state. 614Create a new timer object in started state. It is scheduled to fire
615immediately.
512 616
513=item $timer = $timer->cb (sub { my ($timer) = @_; ... }) 617=item $timer = $timer->cb (sub { my ($timer) = @_; ... })
514 618
515Set the callback to be called when the timer triggers. 619Set the callback to be called when the timer triggers.
516 620
519Return the time this watcher will fire next. 623Return the time this watcher will fire next.
520 624
521=item $timer = $timer->set ($tstamp) 625=item $timer = $timer->set ($tstamp)
522 626
523Set the time the event is generated to $tstamp. 627Set the time the event is generated to $tstamp.
628
629=item $timer = $timer->interval ($interval)
630
631Normally (and when C<$interval> is C<0>), the timer will automatically
632stop after it has fired once. If C<$interval> is non-zero, then the timer
633is automatically rescheduled at the given intervals.
524 634
525=item $timer = $timer->start 635=item $timer = $timer->start
526 636
527Start the timer. 637Start the timer.
528 638

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