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Revision 1.28 by root, Wed Jan 4 00:09:12 2006 UTC vs.
Revision 1.37 by root, Fri Jan 6 03:40:19 2006 UTC

60 60
61=item digital-clock 61=item digital-clock
62 62
63Displays a digital clock using the built-in overlay. 63Displays a digital clock using the built-in overlay.
64 64
65=item mark-urls
66
67Uses per-line filtering (C<on_line_update>) to underline urls.
68
65=item example-refresh-hooks 69=item example-refresh-hooks
66 70
67Displays a very simple digital clock in the upper right corner of the 71Displays a very simple digital clock in the upper right corner of the
68window. Illustrates overwriting the refresh callbacks to create your own 72window. Illustrates overwriting the refresh callbacks to create your own
69overlays or changes. 73overlays or changes.
74
75=item example-filter-input
76
77A not very useful example of filtering all text output to the terminal, by
78underlining all urls that matches a certain regex (i.e. some urls :). It
79is not very useful because urls that are output in multiple steps (e.g.
80when typing them) do not get marked.
70 81
71=back 82=back
72 83
73=head2 General API Considerations 84=head2 General API Considerations
74 85
81When objects are destroyed on the C++ side, the perl object hashes are 92When objects are destroyed on the C++ side, the perl object hashes are
82emptied, so its best to store related objects such as time watchers and 93emptied, so its best to store related objects such as time watchers and
83the like inside the terminal object so they get destroyed as soon as the 94the like inside the terminal object so they get destroyed as soon as the
84terminal is destroyed. 95terminal is destroyed.
85 96
97Argument names also often indicate the type of a parameter. Here are some
98hints on what they mean:
99
100=over 4
101
102=item $text
103
104Rxvt-unicodes special way of encoding text, where one "unicode" character
105always represents one screen cell. See L<row_t> for a discussion of this format.
106
107=item $string
108
109A perl text string, with an emphasis on I<text>. It can store all unicode
110characters and is to be distinguished with text encoded in a specific
111encoding (often locale-specific) and binary data.
112
113=item $octets
114
115Either binary data or - more common - a text string encoded in a
116locale-specific way.
117
118=back
119
86=head2 Hooks 120=head2 Hooks
87 121
88The following subroutines can be declared in loaded scripts, and will be 122The following subroutines can be declared in loaded scripts, and will be
89called whenever the relevant event happens. 123called whenever the relevant event happens.
90 124
103=over 4 137=over 4
104 138
105=item on_init $term 139=item on_init $term
106 140
107Called after a new terminal object has been initialized, but before 141Called after a new terminal object has been initialized, but before
108windows are created or the command gets run. 142windows are created or the command gets run. Most methods are unsafe to
143call or deliver senseless data, as terminal size and other characteristics
144have not yet been determined. You can safely query and change resources,
145though.
109 146
110=item on_reset $term 147=item on_reset $term
111 148
112Called after the screen is "reset" for any reason, such as resizing or 149Called after the screen is "reset" for any reason, such as resizing or
113control sequences. Here is where you can react on changes to size-related 150control sequences. Here is where you can react on changes to size-related
174 211
175Called whenever the program(s) running in the urxvt window send output. 212Called whenever the program(s) running in the urxvt window send output.
176 213
177=item on_osc_seq $term, $string 214=item on_osc_seq $term, $string
178 215
179Called whenever the B<ESC ] 777 ; string ST> command sequence is 216Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
180processed. Cursor position and other state information is up-to-date when 217operating system command) is processed. Cursor position and other state
181this happens. For interoperability, the string should start with the 218information is up-to-date when this happens. For interoperability, the
182extension name and a colon, to distinguish it from commands for other 219string should start with the extension name and a colon, to distinguish
183extensions, and this might be enforced in the future. 220it from commands for other extensions, and this might be enforced in the
221future.
222
223Be careful not ever to trust (in a security sense) the data you receive,
224as its source can not easily be controleld (e-mail content, messages from
225other users on the same system etc.).
226
227=item on_add_lines $term, $string
228
229Called whenever text is about to be output, with the text as argument. You
230can filter/change and output the text yourself by returning a true value
231and calling C<< $term->scr_add_lines >> yourself. Please note that this
232might be very slow, however, as your hook is called for B<all> text being
233output.
234
235=item on_line_update $term, $row
236
237Called whenever a line was updated or changed. Can be used to filter
238screen output (e.g. underline urls or other useless stuff). Only lines
239that are being shown will be filtered, and, due to performance reasons,
240not always immediately.
241
242The row number is always the topmost row of the line if the line spans
243multiple rows.
244
245Please note that, if you change the line, then the hook might get called
246later with the already-modified line (e.g. if unrelated parts change), so
247you cannot just toggle rendition bits, but only set them.
184 248
185=item on_refresh_begin $term 249=item on_refresh_begin $term
186 250
187Called just before the screen gets redrawn. Can be used for overlay 251Called just before the screen gets redrawn. Can be used for overlay
188or similar effects by modify terminal contents in refresh_begin, and 252or similar effects by modify terminal contents in refresh_begin, and
197 261
198Called whenever the user presses a key combination that has a 262Called whenever the user presses a key combination that has a
199C<perl:string> action bound to it (see description of the B<keysym> 263C<perl:string> action bound to it (see description of the B<keysym>
200resource in the @@RXVT_NAME@@(1) manpage). 264resource in the @@RXVT_NAME@@(1) manpage).
201 265
266=item on_key_press $term, $event
267
268=item on_key_release $term, $event
269
270=item on_button_press $term, $event
271
272=item on_button_release $term, $event
273
274=item on_motion_notify $term, $event
275
276Called whenever the corresponding X event is received for the terminal. If
277the hook returns true, then the even will be ignored by rxvt-unicode.
278
279subwindow.
280
202=back 281=back
203 282
204=head2 Variables in the C<urxvt> Package 283=head2 Variables in the C<urxvt> Package
205 284
206=over 4 285=over 4
213=back 292=back
214 293
215=head2 Functions in the C<urxvt> Package 294=head2 Functions in the C<urxvt> Package
216 295
217=over 4 296=over 4
297
298=item $term = new urxvt [arg...]
299
300Creates a new terminal, very similar as if you had started it with
301C<system $binfile, arg...>. Croaks (and probably outputs an error message)
302if the new instance couldn't be created. Returns C<undef> if the new
303instance didn't initialise perl, and the terminal object otherwise. The
304C<init> and C<start> hooks will be called during the call.
218 305
219=item urxvt::fatal $errormessage 306=item urxvt::fatal $errormessage
220 307
221Fatally aborts execution with the given error message. Avoid at all 308Fatally aborts execution with the given error message. Avoid at all
222costs! The only time this is acceptable is when the terminal process 309costs! The only time this is acceptable is when the terminal process
361 448
362 $pkg 449 $pkg
363 } 450 }
364} 451}
365 452
453our $retval; # return value for urxvt
454
366# called by the rxvt core 455# called by the rxvt core
367sub invoke { 456sub invoke {
368 local $TERM = shift; 457 local $TERM = shift;
369 my $htype = shift; 458 my $htype = shift;
370 459
371 if ($htype == 0) { # INIT 460 if ($htype == 0) { # INIT
372 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 461 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
373 462
374 for my $ext (split /:/, $TERM->resource ("perl_ext")) { 463 for my $ext (map { split /:/, $TERM->resource ("perl_ext_$_") } 1, 2) {
375 my @files = grep -f $_, map "$_/$ext", @dirs; 464 my @files = grep -f $_, map "$_/$ext", @dirs;
376 465
377 if (@files) { 466 if (@files) {
378 register_package script_package $files[0]; 467 register_package script_package $files[0];
379 } else { 468 } else {
380 warn "perl extension '$ext' not found in perl library search path\n"; 469 warn "perl extension '$ext' not found in perl library search path\n";
381 } 470 }
382 } 471 }
472 }
383 473
474 $retval = undef;
475
476 if (my $cb = $TERM->{_hook}[$htype]) {
477 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
478 if $verbosity >= 10;
479
480 keys %$cb;
481
482 while (my ($pkg, $cb) = each %$cb) {
483 $retval = $cb->(
484 $TERM->{_pkg}{$pkg} ||= do {
485 my $proxy = bless { }, urxvt::term::proxy::;
486 Scalar::Util::weaken ($proxy->{term} = $TERM);
487 $proxy
488 },
489 @_,
490 ) and last;
491 }
492 }
493
384 } elsif ($htype == 1) { # DESTROY 494 if ($htype == 1) { # DESTROY
495 # remove hooks if unused
385 if (my $hook = $TERM->{_hook}) { 496 if (my $hook = $TERM->{_hook}) {
386 for my $htype (0..$#$hook) { 497 for my $htype (0..$#$hook) {
387 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} } 498 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
388 or set_should_invoke $htype, 0; 499 or set_should_invoke $htype, 0;
389 } 500 }
390 } 501 }
502
503 # clear package objects
504 %$_ = () for values %{ $TERM->{_pkg} };
505
506 # clear package
507 %$TERM = ();
391 } 508 }
392 509
393 my $cb = $TERM->{_hook}[$htype] 510 $retval
394 or return;
395
396 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
397 if $verbosity >= 10;
398
399 keys %$cb;
400
401 while (my ($pkg, $cb) = each %$cb) {
402 return 1
403 if $cb->(
404 $TERM->{$pkg} ||= do {
405 my $proxy = bless { }, urxvt::term::proxy::;
406 Scalar::Util::weaken ($proxy->{term} = $TERM);
407 $proxy
408 },
409 @_,
410 );
411 }
412
413 0
414} 511}
415 512
416sub urxvt::term::proxy::AUTOLOAD { 513sub urxvt::term::proxy::AUTOLOAD {
417 $urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/ 514 $urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/
418 or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable"; 515 or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";
430 527
431=head2 The C<urxvt::term> Class 528=head2 The C<urxvt::term> Class
432 529
433=over 4 530=over 4
434 531
532=item $term->destroy
533
534Destroy the terminal object (close the window, free resources etc.).
535
435=item $value = $term->resource ($name[, $newval]) 536=item $value = $term->resource ($name[, $newval])
436 537
437Returns the current resource value associated with a given name and 538Returns the current resource value associated with a given name and
438optionally sets a new value. Setting values is most useful in the C<init> 539optionally sets a new value. Setting values is most useful in the C<init>
439hook. Unset resources are returned and accepted as C<undef>. 540hook. Unset resources are returned and accepted as C<undef>.
456 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 557 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
457 borderLess color cursorBlink cursorUnderline cutchars delete_key 558 borderLess color cursorBlink cursorUnderline cutchars delete_key
458 display_name embed ext_bwidth fade font geometry hold iconName 559 display_name embed ext_bwidth fade font geometry hold iconName
459 imFont imLocale inputMethod insecure int_bwidth intensityStyles 560 imFont imLocale inputMethod insecure int_bwidth intensityStyles
460 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 561 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier
461 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext 562 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2
462 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 563 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd
463 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 564 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating
464 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 565 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput
465 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 566 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle
466 shade term_name title transparent transparent_all tripleclickwords 567 shade term_name title transparent transparent_all tripleclickwords
472 my ($self, $name) = (shift, shift); 573 my ($self, $name) = (shift, shift);
473 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 574 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
474 goto &urxvt::term::_resource; 575 goto &urxvt::term::_resource;
475} 576}
476 577
578=item $rend = $term->rstyle ([$new_rstyle])
579
580Return and optionally change the current rendition. Text that is output by
581the terminal application will use this style.
582
583=item ($row, $col) = $term->screen_cur ([$row, $col])
584
585Return the current coordinates of the text cursor position and optionally
586set it (which is usually bad as applications don't expect that).
587
477=item ($row, $col) = $term->selection_mark ([$row, $col]) 588=item ($row, $col) = $term->selection_mark ([$row, $col])
478 589
479=item ($row, $col) = $term->selection_beg ([$row, $col]) 590=item ($row, $col) = $term->selection_beg ([$row, $col])
480 591
481=item ($row, $col) = $term->selection_end ([$row, $col]) 592=item ($row, $col) = $term->selection_end ([$row, $col])
495#=item $term->overlay ($x, $y, $text) 606#=item $term->overlay ($x, $y, $text)
496# 607#
497#Create a simple multi-line overlay box. See the next method for details. 608#Create a simple multi-line overlay box. See the next method for details.
498# 609#
499#=cut 610#=cut
500 611#
501sub urxvt::term::scr_overlay { 612#sub urxvt::term::scr_overlay {
502die;
503 my ($self, $x, $y, $text) = @_; 613# my ($self, $x, $y, $text) = @_;
504 614#
505 my @lines = split /\n/, $text; 615# my @lines = split /\n/, $text;
506 616#
507 my $w = 0; 617# my $w = 0;
508 for (map $self->strwidth ($_), @lines) { 618# for (map $self->strwidth ($_), @lines) {
509 $w = $_ if $w < $_; 619# $w = $_ if $w < $_;
510 } 620# }
511 621#
512 $self->scr_overlay_new ($x, $y, $w, scalar @lines); 622# $self->scr_overlay_new ($x, $y, $w, scalar @lines);
513 $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines; 623# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;
514} 624#}
515 625
516=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]]) 626=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
517 627
518Create a new (empty) overlay at the given position with the given 628Create a new (empty) overlay at the given position with the given
519width/height. C<$rstyle> defines the initial rendition style 629width/height. C<$rstyle> defines the initial rendition style
559 669
560=item $string = $term->locale_decode $octets 670=item $string = $term->locale_decode $octets
561 671
562Convert the given locale-encoded octets into a perl string. 672Convert the given locale-encoded octets into a perl string.
563 673
674=item $term->scr_add_lines ($string)
675
676Write the given text string to the screen, as if output by the application
677running inside the terminal. It may not contain command sequences (escape
678codes), but is free to use line feeds, carriage returns and tabs. The
679string is a normal text string, not in locale-dependent encoding.
680
681Normally its not a good idea to use this function, as programs might be
682confused by changes in cursor position or scrolling. Its useful inside a
683C<on_add_lines> hook, though.
684
685=item $term->cmd_parse ($octets)
686
687Similar to C<scr_add_lines>, but the argument must be in the
688locale-specific encoding of the terminal and can contain command sequences
689(escape codes) that will be interpreted.
690
564=item $term->tt_write ($octets) 691=item $term->tt_write ($octets)
565 692
566Write the octets given in C<$data> to the tty (i.e. as program input). To 693Write the octets given in C<$data> to the tty (i.e. as program input). To
567pass characters instead of octets, you should convert your strings first 694pass characters instead of octets, you should convert your strings first
568to the locale-specific encoding using C<< $term->locale_encode >>. 695to the locale-specific encoding using C<< $term->locale_encode >>.
569 696
697=item $window_width = $term->width
698
699=item $window_height = $term->height
700
701=item $font_width = $term->fwidth
702
703=item $font_height = $term->fheight
704
705=item $font_ascent = $term->fbase
706
570=item $nrow = $term->nrow 707=item $terminal_rows = $term->nrow
571 708
572=item $ncol = $term->ncol 709=item $terminal_columns = $term->ncol
573 710
574Return the number of rows/columns of the terminal window (i.e. as 711=item $has_focus = $term->focus
575specified by C<-geometry>, excluding any scrollback).
576 712
577=item $nsaved = $term->nsaved 713=item $is_mapped = $term->mapped
578 714
579Returns the number of lines in the scrollback buffer. 715=item $max_scrollback = $term->saveLines
716
717=item $nrow_plus_saveLines = $term->total_rows
718
719=item $lines_in_scrollback = $term->nsaved
720
721Return various integers describing terminal characteristics.
580 722
581=item $view_start = $term->view_start ([$newvalue]) 723=item $view_start = $term->view_start ([$newvalue])
582 724
583Returns the negative row number of the topmost line. Minimum value is 725Returns the negative row number of the topmost line. Minimum value is
584C<0>, which displays the normal terminal contents. Larger values scroll 726C<0>, which displays the normal terminal contents. Larger values scroll
647about the logical line that row C<$row_number> is part of. It supports the 789about the logical line that row C<$row_number> is part of. It supports the
648following methods: 790following methods:
649 791
650=over 4 792=over 4
651 793
652=item $text = $line->t 794=item $text = $line->t ([$new_text])
653 795
654Returns the full text of the line, similar to C<ROW_t> 796Returns or replaces the full text of the line, similar to C<ROW_t>
655 797
656=item $rend = $line->r 798=item $rend = $line->r ([$new_rend])
657 799
658Returns the full rendition array of the line, similar to C<ROW_r> 800Returns or replaces the full rendition array of the line, similar to C<ROW_r>
659 801
660=item $length = $line->l 802=item $length = $line->l
661 803
662Returns the length of the line in cells, similar to C<ROW_l>. 804Returns the length of the line in cells, similar to C<ROW_l>.
663 805
692 834
693 bless { 835 bless {
694 term => $self, 836 term => $self,
695 beg => $beg, 837 beg => $beg,
696 end => $end, 838 end => $end,
839 ncol => $self->ncol,
697 len => ($end - $beg) * $self->ncol + $self->ROW_l ($end), 840 len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),
698 }, urxvt::line:: 841 }, urxvt::line::
699} 842}
700 843
701sub urxvt::line::t { 844sub urxvt::line::t {
702 my ($self) = @_; 845 my ($self) = @_;
703 846
847 if (@_ > 1)
848 {
849 $self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
850 for $self->{beg} .. $self->{end};
851 }
852
853 defined wantarray &&
704 substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}), 854 substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),
705 0, $self->{len} 855 0, $self->{len}
706} 856}
707 857
708sub urxvt::line::r { 858sub urxvt::line::r {
709 my ($self) = @_; 859 my ($self) = @_;
710 860
861 if (@_ > 1)
862 {
863 $self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
864 for $self->{beg} .. $self->{end};
865 }
866
867 if (defined wantarray) {
711 my $rend = [ 868 my $rend = [
712 map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end} 869 map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}
713 ]; 870 ];
714 $#$rend = $self->{len} - 1; 871 $#$rend = $self->{len} - 1;
715 $rend 872 return $rend;
873 }
874
875 ()
716} 876}
717 877
718sub urxvt::line::beg { $_[0]{beg} } 878sub urxvt::line::beg { $_[0]{beg} }
719sub urxvt::line::end { $_[0]{end} } 879sub urxvt::line::end { $_[0]{end} }
720sub urxvt::line::l { $_[0]{len} } 880sub urxvt::line::l { $_[0]{len} }
721 881
722sub urxvt::line::offset_of { 882sub urxvt::line::offset_of {
723 my ($self, $row, $col) = @_; 883 my ($self, $row, $col) = @_;
724 884
725 ($row - $self->{beg}) * $self->{term}->ncol + $col 885 ($row - $self->{beg}) * $self->{ncol} + $col
726} 886}
727 887
728sub urxvt::line::coord_of { 888sub urxvt::line::coord_of {
729 my ($self, $offset) = @_; 889 my ($self, $offset) = @_;
730 890
731 use integer; 891 use integer;
732 892
733 ( 893 (
734 $offset / $self->{term}->ncol + $self->{beg}, 894 $offset / $self->{ncol} + $self->{beg},
735 $offset % $self->{term}->ncol 895 $offset % $self->{ncol}
736 ) 896 )
737} 897}
738 898
739=item ($row, $col) = $line->coord_of ($offset) 899=item ($row, $col) = $line->coord_of ($offset)
740=item $text = $term->special_encode $string 900=item $text = $term->special_encode $string

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