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Revision 1.23 by root, Tue Jan 3 19:42:53 2006 UTC vs.
Revision 1.35 by root, Fri Jan 6 01:27:27 2006 UTC

39 39
40=over 4 40=over 4
41 41
42=item selection 42=item selection
43 43
44Intelligent selection. This etxension tries to be more intelligent when the user 44Intelligent selection. This extension tries to be more intelligent when
45extends selections (double-click). 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>.
46 48
47It also offers the following bindable event: 49It also offers the following bindable event:
48 50
49=over 4 51=over 4
50 52
57=back 59=back
58 60
59=item digital-clock 61=item digital-clock
60 62
61Displays a digital clock using the built-in overlay. 63Displays a digital clock using the built-in overlay.
64
65=item mark-urls
66
67Uses per-line filtering (C<on_line_update>) to underline urls.
62 68
63=item example-refresh-hooks 69=item example-refresh-hooks
64 70
65Displays 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
66window. Illustrates overwriting the refresh callbacks to create your own 72window. Illustrates overwriting the refresh callbacks to create your own
67overlays 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.
68 81
69=back 82=back
70 83
71=head2 General API Considerations 84=head2 General API Considerations
72 85
79When 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
80emptied, 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
81the 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
82terminal is destroyed. 95terminal is destroyed.
83 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
84=head2 Hooks 120=head2 Hooks
85 121
86The following subroutines can be declared in loaded scripts, and will be 122The following subroutines can be declared in loaded scripts, and will be
87called whenever the relevant event happens. 123called whenever the relevant event happens.
88 124
169number of lines that will be in the scrollback buffer. 205number of lines that will be in the scrollback buffer.
170 206
171=item on_tty_activity $term *NYI* 207=item on_tty_activity $term *NYI*
172 208
173Called whenever the program(s) running in the urxvt window send output. 209Called whenever the program(s) running in the urxvt window send output.
210
211=item on_osc_seq $term, $string
212
213Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
214operating system command) is processed. Cursor position and other state
215information is up-to-date when this happens. For interoperability, the
216string should start with the extension name and a colon, to distinguish
217it from commands for other extensions, and this might be enforced in the
218future.
219
220Be careful not ever to trust (in a security sense) the data you receive,
221as its source can not easily be controleld (e-mail content, messages from
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.
174 245
175=item on_refresh_begin $term 246=item on_refresh_begin $term
176 247
177Called just before the screen gets redrawn. Can be used for overlay 248Called just before the screen gets redrawn. Can be used for overlay
178or similar effects by modify terminal contents in refresh_begin, and 249or similar effects by modify terminal contents in refresh_begin, and
351 422
352 $pkg 423 $pkg
353 } 424 }
354} 425}
355 426
427our $retval; # return value for urxvt
428
356# called by the rxvt core 429# called by the rxvt core
357sub invoke { 430sub invoke {
358 local $TERM = shift; 431 local $TERM = shift;
359 my $htype = shift; 432 my $htype = shift;
360 433
361 if ($htype == 0) { # INIT 434 if ($htype == 0) { # INIT
362 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 435 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
363 436
364 for my $ext (split /:/, $TERM->resource ("perl_ext")) { 437 for my $ext (map { split /:/, $TERM->resource ("perl_ext_$_") } 1, 2) {
365 my @files = grep -f $_, map "$_/$ext", @dirs; 438 my @files = grep -f $_, map "$_/$ext", @dirs;
366 439
367 if (@files) { 440 if (@files) {
368 register_package script_package $files[0]; 441 register_package script_package $files[0];
369 } else { 442 } else {
370 warn "perl extension '$ext' not found in perl library search path\n"; 443 warn "perl extension '$ext' not found in perl library search path\n";
371 } 444 }
372 } 445 }
446 }
373 447
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 $proxy
462 },
463 @_,
464 ) and last;
465 }
466 }
467
374 } elsif ($htype == 1) { # DESTROY 468 if ($htype == 1) { # DESTROY
469 # remove hooks if unused
375 if (my $hook = $TERM->{_hook}) { 470 if (my $hook = $TERM->{_hook}) {
376 for my $htype (0..$#$hook) { 471 for my $htype (0..$#$hook) {
377 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} } 472 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
378 or set_should_invoke $htype, 0; 473 or set_should_invoke $htype, 0;
379 } 474 }
380 } 475 }
476
477 # clear package objects
478 %$_ = () for values %{ $TERM->{_pkg} };
479
480 # clear package
481 %$TERM = ();
381 } 482 }
382 483
383 my $cb = $TERM->{_hook}[$htype] 484 $retval
384 or return;
385
386 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
387 if $verbosity >= 10;
388
389 while (my ($pkg, $cb) = each %$cb) {
390 return 1
391 if $cb->(
392 $TERM->{$pkg} ||= do {
393 my $proxy = bless { }, urxvt::term::proxy::;
394 Scalar::Util::weaken ($proxy->{term} = $TERM);
395 $proxy
396 },
397 @_,
398 );
399 }
400
401 0
402} 485}
403 486
404sub urxvt::term::proxy::AUTOLOAD { 487sub urxvt::term::proxy::AUTOLOAD {
405 $urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/ 488 $urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/
406 or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable"; 489 or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";
407 490
408 eval qq{ 491 eval qq{
409 sub $urxvt::term::proxy::AUTOLOAD { 492 sub $urxvt::term::proxy::AUTOLOAD {
410 unshift \@_, shift->{term}; 493 my \$proxy = shift;
411 goto &urxvt::term::$1; 494 \$proxy->{term}->$1 (\@_)
412 } 495 }
413 1 496 1
414 } or die "FATAL: unable to compile method forwarder: $@"; 497 } or die "FATAL: unable to compile method forwarder: $@";
415 498
416 goto &$urxvt::term::proxy::AUTOLOAD; 499 goto &$urxvt::term::proxy::AUTOLOAD;
444 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 527 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
445 borderLess color cursorBlink cursorUnderline cutchars delete_key 528 borderLess color cursorBlink cursorUnderline cutchars delete_key
446 display_name embed ext_bwidth fade font geometry hold iconName 529 display_name embed ext_bwidth fade font geometry hold iconName
447 imFont imLocale inputMethod insecure int_bwidth intensityStyles 530 imFont imLocale inputMethod insecure int_bwidth intensityStyles
448 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 531 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier
449 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext 532 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2
450 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 533 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd
451 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 534 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating
452 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 535 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput
453 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 536 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle
454 shade term_name title transparent transparent_all tripleclickwords 537 shade term_name title transparent transparent_all tripleclickwords
460 my ($self, $name) = (shift, shift); 543 my ($self, $name) = (shift, shift);
461 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 544 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
462 goto &urxvt::term::_resource; 545 goto &urxvt::term::_resource;
463} 546}
464 547
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, $col])
554
555Return the current coordinates of the text cursor position and optionally
556set it (which is usually bad as applications don't expect that).
557
465=item ($row, $col) = $term->selection_mark ([$row, $col]) 558=item ($row, $col) = $term->selection_mark ([$row, $col])
466 559
467=item ($row, $col) = $term->selection_beg ([$row, $col]) 560=item ($row, $col) = $term->selection_beg ([$row, $col])
468 561
469=item ($row, $col) = $term->selection_end ([$row, $col]) 562=item ($row, $col) = $term->selection_end ([$row, $col])
483#=item $term->overlay ($x, $y, $text) 576#=item $term->overlay ($x, $y, $text)
484# 577#
485#Create a simple multi-line overlay box. See the next method for details. 578#Create a simple multi-line overlay box. See the next method for details.
486# 579#
487#=cut 580#=cut
488 581#
489sub urxvt::term::scr_overlay { 582#sub urxvt::term::scr_overlay {
490die;
491 my ($self, $x, $y, $text) = @_; 583# my ($self, $x, $y, $text) = @_;
492 584#
493 my @lines = split /\n/, $text; 585# my @lines = split /\n/, $text;
494 586#
495 my $w = 0; 587# my $w = 0;
496 for (map $self->strwidth ($_), @lines) { 588# for (map $self->strwidth ($_), @lines) {
497 $w = $_ if $w < $_; 589# $w = $_ if $w < $_;
498 } 590# }
499 591#
500 $self->scr_overlay_new ($x, $y, $w, scalar @lines); 592# $self->scr_overlay_new ($x, $y, $w, scalar @lines);
501 $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines; 593# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;
502} 594#}
503 595
504=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]]) 596=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
505 597
506Create a new (empty) overlay at the given position with the given 598Create a new (empty) overlay at the given position with the given
507width/height. C<$rstyle> defines the initial rendition style 599width/height. C<$rstyle> defines the initial rendition style
547 639
548=item $string = $term->locale_decode $octets 640=item $string = $term->locale_decode $octets
549 641
550Convert the given locale-encoded octets into a perl string. 642Convert the given locale-encoded octets into a perl string.
551 643
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
552=item $term->tt_write ($octets) 655=item $term->tt_write ($octets)
553 656
554Write 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
555pass characters instead of octets, you should convert your strings first 658pass characters instead of octets, you should convert your strings first
556to the locale-specific encoding using C<< $term->locale_encode >>. 659to the locale-specific encoding using C<< $term->locale_encode >>.
557 660
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
558=item $nrow = $term->nrow 671=item $terminal_rows = $term->nrow
559 672
560=item $ncol = $term->ncol 673=item $terminal_columns = $term->ncol
561 674
562Return the number of rows/columns of the terminal window (i.e. as 675=item $has_focus = $term->focus
563specified by C<-geometry>, excluding any scrollback).
564 676
565=item $nsaved = $term->nsaved 677=item $is_mapped = $term->mapped
566 678
567Returns 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.
568 686
569=item $view_start = $term->view_start ([$newvalue]) 687=item $view_start = $term->view_start ([$newvalue])
570 688
571Returns the negative row number of the topmost line. Minimum value is 689Returns the negative row number of the topmost line. Minimum value is
572C<0>, which displays the normal terminal contents. Larger values scroll 690C<0>, which displays the normal terminal contents. Larger values scroll
583=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]]) 701=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
584 702
585Returns the text of the entire row with number C<$row_number>. Row C<0> 703Returns the text of the entire row with number C<$row_number>. Row C<0>
586is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost 704is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost
587terminal line. The scrollback buffer starts at line C<-1> and extends to 705terminal line. The scrollback buffer starts at line C<-1> and extends to
588line C<< -$term->nsaved >>. 706line C<< -$term->nsaved >>. Nothing will be returned if a nonexistent line
707is requested.
589 708
590If C<$new_text> is specified, it will replace characters in the current 709If C<$new_text> is specified, it will replace characters in the current
591line, starting at column C<$start_col> (default C<0>), which is useful 710line, starting at column C<$start_col> (default C<0>), which is useful
592to replace only parts of a line. The font index in the rendition will 711to replace only parts of a line. The font index in the rendition will
593automatically be updated. 712automatically be updated.
615 734
616See the section on RENDITION, above. 735See the section on RENDITION, above.
617 736
618=item $length = $term->ROW_l ($row_number[, $new_length]) 737=item $length = $term->ROW_l ($row_number[, $new_length])
619 738
620Returns the number of screen cells that are in use ("the line length"). If 739Returns the number of screen cells that are in use ("the line
621it is C<-1>, then the line is part of a multiple-row logical "line", which 740length"). Unlike the urxvt core, this returns C<< $term->ncol >> if the
622means all characters are in use and it is continued on the next row. 741line is joined with the following one.
623 742
743=item $bool = $term->is_longer ($row_number)
744
745Returns true if the row is part of a multiple-row logical "line" (i.e.
746joined with the following row), which means all characters are in use
747and it is continued on the next row (and possibly a continuation of the
748previous row(s)).
749
750=item $line = $term->line ($row_number)
751
752Create and return a new C<urxvt::line> object that stores information
753about the logical line that row C<$row_number> is part of. It supports the
754following methods:
755
756=over 4
757
758=item $text = $line->t ([$new_text])
759
760Returns or replaces the full text of the line, similar to C<ROW_t>
761
762=item $rend = $line->r ([$new_rend])
763
764Returns or replaces the full rendition array of the line, similar to C<ROW_r>
765
766=item $length = $line->l
767
768Returns the length of the line in cells, similar to C<ROW_l>.
769
770=item $rownum = $line->beg
771
772=item $rownum = $line->end
773
774Return the row number of the first/last row of the line, respectively.
775
776=item $offset = $line->offset_of ($row, $col)
777
778Returns the character offset of the given row|col pair within the logical
779line.
780
781=item ($row, $col) = $line->coord_of ($offset)
782
783Translates a string offset into terminal coordinates again.
784
785=back
786
787=cut
788
789sub urxvt::term::line {
790 my ($self, $row) = @_;
791
792 my $maxrow = $self->nrow - 1;
793
794 my ($beg, $end) = ($row, $row);
795
796 --$beg while $self->ROW_is_longer ($beg - 1);
797 ++$end while $self->ROW_is_longer ($end) && $end < $maxrow;
798
799 bless {
800 term => $self,
801 beg => $beg,
802 end => $end,
803 ncol => $self->ncol,
804 len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),
805 }, urxvt::line::
806}
807
808sub urxvt::line::t {
809 my ($self) = @_;
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 &&
818 substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),
819 0, $self->{len}
820}
821
822sub urxvt::line::r {
823 my ($self) = @_;
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) {
832 my $rend = [
833 map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}
834 ];
835 $#$rend = $self->{len} - 1;
836 return $rend;
837 }
838
839 ()
840}
841
842sub urxvt::line::beg { $_[0]{beg} }
843sub urxvt::line::end { $_[0]{end} }
844sub urxvt::line::l { $_[0]{len} }
845
846sub urxvt::line::offset_of {
847 my ($self, $row, $col) = @_;
848
849 ($row - $self->{beg}) * $self->{ncol} + $col
850}
851
852sub urxvt::line::coord_of {
853 my ($self, $offset) = @_;
854
855 use integer;
856
857 (
858 $offset / $self->{ncol} + $self->{beg},
859 $offset % $self->{ncol}
860 )
861}
862
863=item ($row, $col) = $line->coord_of ($offset)
624=item $text = $term->special_encode $string 864=item $text = $term->special_encode $string
625 865
626Converts a perl string into the special encoding used by rxvt-unicode, 866Converts a perl string into the special encoding used by rxvt-unicode,
627where one character corresponds to one screen cell. See 867where one character corresponds to one screen cell. See
628C<< $term->ROW_t >> for details. 868C<< $term->ROW_t >> for details.
742This variable controls the verbosity level of the perl extension. Higher 982This variable controls the verbosity level of the perl extension. Higher
743numbers indicate more verbose output. 983numbers indicate more verbose output.
744 984
745=over 4 985=over 4
746 986
747=item 0 - only fatal messages 987=item =0 - only fatal messages
748 988
749=item 3 - script loading and management 989=item =3 - script loading and management
750 990
751=item 10 - all events received 991=item =10 - all events received
752 992
753=back 993=back
754 994
755=head1 AUTHOR 995=head1 AUTHOR
756 996

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