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Comparing rxvt-unicode/src/urxvt.pm (file contents):
Revision 1.29 by root, Wed Jan 4 00:12:12 2006 UTC vs.
Revision 1.35 by root, Fri Jan 6 01:27:27 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
80 91
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.
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
85 119
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.
184future. 218future.
185 219
186Be careful not ever to trust (in a security sense) the data you receive, 220Be 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 221as its source can not easily be controleld (e-mail content, messages from
188other users on the same system etc.). 222other users on the same system etc.).
223
224=item on_add_lines $term, $string
225
226Called whenever text is about to be output, with the text as argument. You
227can filter/change and output the text yourself by returning a true value
228and calling C<< $term->scr_add_lines >> yourself. Please note that this
229might be very slow, however, as your hook is called for B<all> text being
230output.
231
232=item on_line_update $term, $row
233
234Called whenever a line was updated or changed. Can be used to filter
235screen output (e.g. underline urls or other useless stuff). Only lines
236that are being shown will be filtered, and, due to performance reasons,
237not always immediately.
238
239The row number is always the topmost row of the line if the line spans
240multiple rows.
241
242Please note that, if you change the line, then the hook might get called
243later with the already-modified line (e.g. if unrelated parts change), so
244you cannot just toggle rendition bits, but only set them.
189 245
190=item on_refresh_begin $term 246=item on_refresh_begin $term
191 247
192Called just before the screen gets redrawn. Can be used for overlay 248Called just before the screen gets redrawn. Can be used for overlay
193or similar effects by modify terminal contents in refresh_begin, and 249or similar effects by modify terminal contents in refresh_begin, and
366 422
367 $pkg 423 $pkg
368 } 424 }
369} 425}
370 426
427our $retval; # return value for urxvt
428
371# called by the rxvt core 429# called by the rxvt core
372sub invoke { 430sub invoke {
373 local $TERM = shift; 431 local $TERM = shift;
374 my $htype = shift; 432 my $htype = shift;
375 433
376 if ($htype == 0) { # INIT 434 if ($htype == 0) { # INIT
377 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 435 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
378 436
379 for my $ext (split /:/, $TERM->resource ("perl_ext")) { 437 for my $ext (map { split /:/, $TERM->resource ("perl_ext_$_") } 1, 2) {
380 my @files = grep -f $_, map "$_/$ext", @dirs; 438 my @files = grep -f $_, map "$_/$ext", @dirs;
381 439
382 if (@files) { 440 if (@files) {
383 register_package script_package $files[0]; 441 register_package script_package $files[0];
384 } else { 442 } else {
385 warn "perl extension '$ext' not found in perl library search path\n"; 443 warn "perl extension '$ext' not found in perl library search path\n";
386 } 444 }
387 } 445 }
446 }
388 447
448 $retval = undef;
449
450 if (my $cb = $TERM->{_hook}[$htype]) {
451 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
452 if $verbosity >= 10;
453
454 keys %$cb;
455
456 while (my ($pkg, $cb) = each %$cb) {
457 $retval = $cb->(
458 $TERM->{_pkg}{$pkg} ||= do {
459 my $proxy = bless { }, urxvt::term::proxy::;
460 Scalar::Util::weaken ($proxy->{term} = $TERM);
461 $proxy
462 },
463 @_,
464 ) and last;
465 }
466 }
467
389 } elsif ($htype == 1) { # DESTROY 468 if ($htype == 1) { # DESTROY
469 # remove hooks if unused
390 if (my $hook = $TERM->{_hook}) { 470 if (my $hook = $TERM->{_hook}) {
391 for my $htype (0..$#$hook) { 471 for my $htype (0..$#$hook) {
392 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} } 472 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
393 or set_should_invoke $htype, 0; 473 or set_should_invoke $htype, 0;
394 } 474 }
395 } 475 }
476
477 # clear package objects
478 %$_ = () for values %{ $TERM->{_pkg} };
479
480 # clear package
481 %$TERM = ();
396 } 482 }
397 483
398 my $cb = $TERM->{_hook}[$htype] 484 $retval
399 or return;
400
401 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
402 if $verbosity >= 10;
403
404 keys %$cb;
405
406 while (my ($pkg, $cb) = each %$cb) {
407 return 1
408 if $cb->(
409 $TERM->{$pkg} ||= do {
410 my $proxy = bless { }, urxvt::term::proxy::;
411 Scalar::Util::weaken ($proxy->{term} = $TERM);
412 $proxy
413 },
414 @_,
415 );
416 }
417
418 0
419} 485}
420 486
421sub urxvt::term::proxy::AUTOLOAD { 487sub urxvt::term::proxy::AUTOLOAD {
422 $urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/ 488 $urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/
423 or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable"; 489 or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";
461 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 527 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
462 borderLess color cursorBlink cursorUnderline cutchars delete_key 528 borderLess color cursorBlink cursorUnderline cutchars delete_key
463 display_name embed ext_bwidth fade font geometry hold iconName 529 display_name embed ext_bwidth fade font geometry hold iconName
464 imFont imLocale inputMethod insecure int_bwidth intensityStyles 530 imFont imLocale inputMethod insecure int_bwidth intensityStyles
465 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 531 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier
466 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext 532 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2
467 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 533 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd
468 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 534 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating
469 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 535 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput
470 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 536 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle
471 shade term_name title transparent transparent_all tripleclickwords 537 shade term_name title transparent transparent_all tripleclickwords
477 my ($self, $name) = (shift, shift); 543 my ($self, $name) = (shift, shift);
478 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 544 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
479 goto &urxvt::term::_resource; 545 goto &urxvt::term::_resource;
480} 546}
481 547
548=item $rend = $term->rstyle ([$new_rstyle])
549
550Return and optionally change the current rendition. Text that is output by
551the terminal application will use this style.
552
553=item ($row, $col) = $term->screen_cur ([$row, $col])
554
555Return the current coordinates of the text cursor position and optionally
556set it (which is usually bad as applications don't expect that).
557
482=item ($row, $col) = $term->selection_mark ([$row, $col]) 558=item ($row, $col) = $term->selection_mark ([$row, $col])
483 559
484=item ($row, $col) = $term->selection_beg ([$row, $col]) 560=item ($row, $col) = $term->selection_beg ([$row, $col])
485 561
486=item ($row, $col) = $term->selection_end ([$row, $col]) 562=item ($row, $col) = $term->selection_end ([$row, $col])
500#=item $term->overlay ($x, $y, $text) 576#=item $term->overlay ($x, $y, $text)
501# 577#
502#Create a simple multi-line overlay box. See the next method for details. 578#Create a simple multi-line overlay box. See the next method for details.
503# 579#
504#=cut 580#=cut
505 581#
506sub urxvt::term::scr_overlay { 582#sub urxvt::term::scr_overlay {
507die;
508 my ($self, $x, $y, $text) = @_; 583# my ($self, $x, $y, $text) = @_;
509 584#
510 my @lines = split /\n/, $text; 585# my @lines = split /\n/, $text;
511 586#
512 my $w = 0; 587# my $w = 0;
513 for (map $self->strwidth ($_), @lines) { 588# for (map $self->strwidth ($_), @lines) {
514 $w = $_ if $w < $_; 589# $w = $_ if $w < $_;
515 } 590# }
516 591#
517 $self->scr_overlay_new ($x, $y, $w, scalar @lines); 592# $self->scr_overlay_new ($x, $y, $w, scalar @lines);
518 $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines; 593# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;
519} 594#}
520 595
521=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]]) 596=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
522 597
523Create a new (empty) overlay at the given position with the given 598Create a new (empty) overlay at the given position with the given
524width/height. C<$rstyle> defines the initial rendition style 599width/height. C<$rstyle> defines the initial rendition style
564 639
565=item $string = $term->locale_decode $octets 640=item $string = $term->locale_decode $octets
566 641
567Convert the given locale-encoded octets into a perl string. 642Convert the given locale-encoded octets into a perl string.
568 643
644=item $term->scr_add_lines ($string)
645
646Write the given text string to the screen, as if output by the application
647running inside the terminal. It may not contain command sequences (escape
648codes), but is free to use line feeds, carriage returns and tabs. The
649string is a normal text string, not in locale-dependent encoding.
650
651Normally its not a good idea to use this function, as programs might be
652confused by changes in cursor position or scrolling. Its useful inside a
653C<on_add_lines> hook, though.
654
569=item $term->tt_write ($octets) 655=item $term->tt_write ($octets)
570 656
571Write the octets given in C<$data> to the tty (i.e. as program input). To 657Write the octets given in C<$data> to the tty (i.e. as program input). To
572pass characters instead of octets, you should convert your strings first 658pass characters instead of octets, you should convert your strings first
573to the locale-specific encoding using C<< $term->locale_encode >>. 659to the locale-specific encoding using C<< $term->locale_encode >>.
574 660
661=item $window_width = $term->width
662
663=item $window_height = $term->height
664
665=item $font_width = $term->fwidth
666
667=item $font_height = $term->fheight
668
669=item $font_ascent = $term->fbase
670
575=item $nrow = $term->nrow 671=item $terminal_rows = $term->nrow
576 672
577=item $ncol = $term->ncol 673=item $terminal_columns = $term->ncol
578 674
579Return the number of rows/columns of the terminal window (i.e. as 675=item $has_focus = $term->focus
580specified by C<-geometry>, excluding any scrollback).
581 676
582=item $nsaved = $term->nsaved 677=item $is_mapped = $term->mapped
583 678
584Returns the number of lines in the scrollback buffer. 679=item $max_scrollback = $term->saveLines
680
681=item $nrow_plus_saveLines = $term->total_rows
682
683=item $lines_in_scrollback = $term->nsaved
684
685Return various integers describing terminal characteristics.
585 686
586=item $view_start = $term->view_start ([$newvalue]) 687=item $view_start = $term->view_start ([$newvalue])
587 688
588Returns the negative row number of the topmost line. Minimum value is 689Returns the negative row number of the topmost line. Minimum value is
589C<0>, which displays the normal terminal contents. Larger values scroll 690C<0>, which displays the normal terminal contents. Larger values scroll
652about the logical line that row C<$row_number> is part of. It supports the 753about the logical line that row C<$row_number> is part of. It supports the
653following methods: 754following methods:
654 755
655=over 4 756=over 4
656 757
657=item $text = $line->t 758=item $text = $line->t ([$new_text])
658 759
659Returns the full text of the line, similar to C<ROW_t> 760Returns or replaces the full text of the line, similar to C<ROW_t>
660 761
661=item $rend = $line->r 762=item $rend = $line->r ([$new_rend])
662 763
663Returns the full rendition array of the line, similar to C<ROW_r> 764Returns or replaces the full rendition array of the line, similar to C<ROW_r>
664 765
665=item $length = $line->l 766=item $length = $line->l
666 767
667Returns the length of the line in cells, similar to C<ROW_l>. 768Returns the length of the line in cells, similar to C<ROW_l>.
668 769
697 798
698 bless { 799 bless {
699 term => $self, 800 term => $self,
700 beg => $beg, 801 beg => $beg,
701 end => $end, 802 end => $end,
803 ncol => $self->ncol,
702 len => ($end - $beg) * $self->ncol + $self->ROW_l ($end), 804 len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),
703 }, urxvt::line:: 805 }, urxvt::line::
704} 806}
705 807
706sub urxvt::line::t { 808sub urxvt::line::t {
707 my ($self) = @_; 809 my ($self) = @_;
708 810
811 if (@_ > 1)
812 {
813 $self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
814 for $self->{beg} .. $self->{end};
815 }
816
817 defined wantarray &&
709 substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}), 818 substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),
710 0, $self->{len} 819 0, $self->{len}
711} 820}
712 821
713sub urxvt::line::r { 822sub urxvt::line::r {
714 my ($self) = @_; 823 my ($self) = @_;
715 824
825 if (@_ > 1)
826 {
827 $self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
828 for $self->{beg} .. $self->{end};
829 }
830
831 if (defined wantarray) {
716 my $rend = [ 832 my $rend = [
717 map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end} 833 map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}
718 ]; 834 ];
719 $#$rend = $self->{len} - 1; 835 $#$rend = $self->{len} - 1;
720 $rend 836 return $rend;
837 }
838
839 ()
721} 840}
722 841
723sub urxvt::line::beg { $_[0]{beg} } 842sub urxvt::line::beg { $_[0]{beg} }
724sub urxvt::line::end { $_[0]{end} } 843sub urxvt::line::end { $_[0]{end} }
725sub urxvt::line::l { $_[0]{len} } 844sub urxvt::line::l { $_[0]{len} }
726 845
727sub urxvt::line::offset_of { 846sub urxvt::line::offset_of {
728 my ($self, $row, $col) = @_; 847 my ($self, $row, $col) = @_;
729 848
730 ($row - $self->{beg}) * $self->{term}->ncol + $col 849 ($row - $self->{beg}) * $self->{ncol} + $col
731} 850}
732 851
733sub urxvt::line::coord_of { 852sub urxvt::line::coord_of {
734 my ($self, $offset) = @_; 853 my ($self, $offset) = @_;
735 854
736 use integer; 855 use integer;
737 856
738 ( 857 (
739 $offset / $self->{term}->ncol + $self->{beg}, 858 $offset / $self->{ncol} + $self->{beg},
740 $offset % $self->{term}->ncol 859 $offset % $self->{ncol}
741 ) 860 )
742} 861}
743 862
744=item ($row, $col) = $line->coord_of ($offset) 863=item ($row, $col) = $line->coord_of ($offset)
745=item $text = $term->special_encode $string 864=item $text = $term->special_encode $string

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