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Revision 1.28 by root, Wed Jan 4 00:09:12 2006 UTC vs.
Revision 1.38 by root, Fri Jan 6 03:43:12 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, $octets
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
277(see the XEvent manpage) If the hook returns true, then the even will be
278ignored by rxvt-unicode.
279
280C<on_key_press> additionally receives the string rxvt-unicode would
281output, if any, in locale-specific encoding.
282
283subwindow.
284
202=back 285=back
203 286
204=head2 Variables in the C<urxvt> Package 287=head2 Variables in the C<urxvt> Package
205 288
206=over 4 289=over 4
213=back 296=back
214 297
215=head2 Functions in the C<urxvt> Package 298=head2 Functions in the C<urxvt> Package
216 299
217=over 4 300=over 4
301
302=item $term = new urxvt [arg...]
303
304Creates a new terminal, very similar as if you had started it with
305C<system $binfile, arg...>. Croaks (and probably outputs an error message)
306if the new instance couldn't be created. Returns C<undef> if the new
307instance didn't initialise perl, and the terminal object otherwise. The
308C<init> and C<start> hooks will be called during the call.
218 309
219=item urxvt::fatal $errormessage 310=item urxvt::fatal $errormessage
220 311
221Fatally aborts execution with the given error message. Avoid at all 312Fatally aborts execution with the given error message. Avoid at all
222costs! The only time this is acceptable is when the terminal process 313costs! The only time this is acceptable is when the terminal process
361 452
362 $pkg 453 $pkg
363 } 454 }
364} 455}
365 456
457our $retval; # return value for urxvt
458
366# called by the rxvt core 459# called by the rxvt core
367sub invoke { 460sub invoke {
368 local $TERM = shift; 461 local $TERM = shift;
369 my $htype = shift; 462 my $htype = shift;
370 463
371 if ($htype == 0) { # INIT 464 if ($htype == 0) { # INIT
372 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 465 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
373 466
374 for my $ext (split /:/, $TERM->resource ("perl_ext")) { 467 for my $ext (map { split /:/, $TERM->resource ("perl_ext_$_") } 1, 2) {
375 my @files = grep -f $_, map "$_/$ext", @dirs; 468 my @files = grep -f $_, map "$_/$ext", @dirs;
376 469
377 if (@files) { 470 if (@files) {
378 register_package script_package $files[0]; 471 register_package script_package $files[0];
379 } else { 472 } else {
380 warn "perl extension '$ext' not found in perl library search path\n"; 473 warn "perl extension '$ext' not found in perl library search path\n";
381 } 474 }
382 } 475 }
476 }
383 477
478 $retval = undef;
479
480 if (my $cb = $TERM->{_hook}[$htype]) {
481 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
482 if $verbosity >= 10;
483
484 keys %$cb;
485
486 while (my ($pkg, $cb) = each %$cb) {
487 $retval = $cb->(
488 $TERM->{_pkg}{$pkg} ||= do {
489 my $proxy = bless { }, urxvt::term::proxy::;
490 Scalar::Util::weaken ($proxy->{term} = $TERM);
491 $proxy
492 },
493 @_,
494 ) and last;
495 }
496 }
497
384 } elsif ($htype == 1) { # DESTROY 498 if ($htype == 1) { # DESTROY
499 # remove hooks if unused
385 if (my $hook = $TERM->{_hook}) { 500 if (my $hook = $TERM->{_hook}) {
386 for my $htype (0..$#$hook) { 501 for my $htype (0..$#$hook) {
387 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} } 502 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
388 or set_should_invoke $htype, 0; 503 or set_should_invoke $htype, 0;
389 } 504 }
390 } 505 }
506
507 # clear package objects
508 %$_ = () for values %{ $TERM->{_pkg} };
509
510 # clear package
511 %$TERM = ();
391 } 512 }
392 513
393 my $cb = $TERM->{_hook}[$htype] 514 $retval
394 or return;
395
396 verbose 10, "$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} 515}
415 516
416sub urxvt::term::proxy::AUTOLOAD { 517sub urxvt::term::proxy::AUTOLOAD {
417 $urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/ 518 $urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/
418 or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable"; 519 or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";
430 531
431=head2 The C<urxvt::term> Class 532=head2 The C<urxvt::term> Class
432 533
433=over 4 534=over 4
434 535
536=item $term->destroy
537
538Destroy the terminal object (close the window, free resources etc.).
539
435=item $value = $term->resource ($name[, $newval]) 540=item $value = $term->resource ($name[, $newval])
436 541
437Returns the current resource value associated with a given name and 542Returns the current resource value associated with a given name and
438optionally sets a new value. Setting values is most useful in the C<init> 543optionally sets a new value. Setting values is most useful in the C<init>
439hook. Unset resources are returned and accepted as C<undef>. 544hook. Unset resources are returned and accepted as C<undef>.
456 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 561 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
457 borderLess color cursorBlink cursorUnderline cutchars delete_key 562 borderLess color cursorBlink cursorUnderline cutchars delete_key
458 display_name embed ext_bwidth fade font geometry hold iconName 563 display_name embed ext_bwidth fade font geometry hold iconName
459 imFont imLocale inputMethod insecure int_bwidth intensityStyles 564 imFont imLocale inputMethod insecure int_bwidth intensityStyles
460 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 565 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier
461 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext 566 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2
462 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 567 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd
463 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 568 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating
464 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 569 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput
465 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 570 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle
466 shade term_name title transparent transparent_all tripleclickwords 571 shade term_name title transparent transparent_all tripleclickwords
472 my ($self, $name) = (shift, shift); 577 my ($self, $name) = (shift, shift);
473 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 578 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
474 goto &urxvt::term::_resource; 579 goto &urxvt::term::_resource;
475} 580}
476 581
582=item $rend = $term->rstyle ([$new_rstyle])
583
584Return and optionally change the current rendition. Text that is output by
585the terminal application will use this style.
586
587=item ($row, $col) = $term->screen_cur ([$row, $col])
588
589Return the current coordinates of the text cursor position and optionally
590set it (which is usually bad as applications don't expect that).
591
477=item ($row, $col) = $term->selection_mark ([$row, $col]) 592=item ($row, $col) = $term->selection_mark ([$row, $col])
478 593
479=item ($row, $col) = $term->selection_beg ([$row, $col]) 594=item ($row, $col) = $term->selection_beg ([$row, $col])
480 595
481=item ($row, $col) = $term->selection_end ([$row, $col]) 596=item ($row, $col) = $term->selection_end ([$row, $col])
495#=item $term->overlay ($x, $y, $text) 610#=item $term->overlay ($x, $y, $text)
496# 611#
497#Create a simple multi-line overlay box. See the next method for details. 612#Create a simple multi-line overlay box. See the next method for details.
498# 613#
499#=cut 614#=cut
500 615#
501sub urxvt::term::scr_overlay { 616#sub urxvt::term::scr_overlay {
502die;
503 my ($self, $x, $y, $text) = @_; 617# my ($self, $x, $y, $text) = @_;
504 618#
505 my @lines = split /\n/, $text; 619# my @lines = split /\n/, $text;
506 620#
507 my $w = 0; 621# my $w = 0;
508 for (map $self->strwidth ($_), @lines) { 622# for (map $self->strwidth ($_), @lines) {
509 $w = $_ if $w < $_; 623# $w = $_ if $w < $_;
510 } 624# }
511 625#
512 $self->scr_overlay_new ($x, $y, $w, scalar @lines); 626# $self->scr_overlay_new ($x, $y, $w, scalar @lines);
513 $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines; 627# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;
514} 628#}
515 629
516=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]]) 630=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
517 631
518Create a new (empty) overlay at the given position with the given 632Create a new (empty) overlay at the given position with the given
519width/height. C<$rstyle> defines the initial rendition style 633width/height. C<$rstyle> defines the initial rendition style
559 673
560=item $string = $term->locale_decode $octets 674=item $string = $term->locale_decode $octets
561 675
562Convert the given locale-encoded octets into a perl string. 676Convert the given locale-encoded octets into a perl string.
563 677
678=item $term->scr_add_lines ($string)
679
680Write the given text string to the screen, as if output by the application
681running inside the terminal. It may not contain command sequences (escape
682codes), but is free to use line feeds, carriage returns and tabs. The
683string is a normal text string, not in locale-dependent encoding.
684
685Normally its not a good idea to use this function, as programs might be
686confused by changes in cursor position or scrolling. Its useful inside a
687C<on_add_lines> hook, though.
688
689=item $term->cmd_parse ($octets)
690
691Similar to C<scr_add_lines>, but the argument must be in the
692locale-specific encoding of the terminal and can contain command sequences
693(escape codes) that will be interpreted.
694
564=item $term->tt_write ($octets) 695=item $term->tt_write ($octets)
565 696
566Write the octets given in C<$data> to the tty (i.e. as program input). To 697Write the octets given in C<$data> to the tty (i.e. as program input). To
567pass characters instead of octets, you should convert your strings first 698pass characters instead of octets, you should convert your strings first
568to the locale-specific encoding using C<< $term->locale_encode >>. 699to the locale-specific encoding using C<< $term->locale_encode >>.
569 700
701=item $window_width = $term->width
702
703=item $window_height = $term->height
704
705=item $font_width = $term->fwidth
706
707=item $font_height = $term->fheight
708
709=item $font_ascent = $term->fbase
710
570=item $nrow = $term->nrow 711=item $terminal_rows = $term->nrow
571 712
572=item $ncol = $term->ncol 713=item $terminal_columns = $term->ncol
573 714
574Return the number of rows/columns of the terminal window (i.e. as 715=item $has_focus = $term->focus
575specified by C<-geometry>, excluding any scrollback).
576 716
577=item $nsaved = $term->nsaved 717=item $is_mapped = $term->mapped
578 718
579Returns the number of lines in the scrollback buffer. 719=item $max_scrollback = $term->saveLines
720
721=item $nrow_plus_saveLines = $term->total_rows
722
723=item $lines_in_scrollback = $term->nsaved
724
725Return various integers describing terminal characteristics.
580 726
581=item $view_start = $term->view_start ([$newvalue]) 727=item $view_start = $term->view_start ([$newvalue])
582 728
583Returns the negative row number of the topmost line. Minimum value is 729Returns the negative row number of the topmost line. Minimum value is
584C<0>, which displays the normal terminal contents. Larger values scroll 730C<0>, which displays the normal terminal contents. Larger values scroll
647about the logical line that row C<$row_number> is part of. It supports the 793about the logical line that row C<$row_number> is part of. It supports the
648following methods: 794following methods:
649 795
650=over 4 796=over 4
651 797
652=item $text = $line->t 798=item $text = $line->t ([$new_text])
653 799
654Returns the full text of the line, similar to C<ROW_t> 800Returns or replaces the full text of the line, similar to C<ROW_t>
655 801
656=item $rend = $line->r 802=item $rend = $line->r ([$new_rend])
657 803
658Returns the full rendition array of the line, similar to C<ROW_r> 804Returns or replaces the full rendition array of the line, similar to C<ROW_r>
659 805
660=item $length = $line->l 806=item $length = $line->l
661 807
662Returns the length of the line in cells, similar to C<ROW_l>. 808Returns the length of the line in cells, similar to C<ROW_l>.
663 809
692 838
693 bless { 839 bless {
694 term => $self, 840 term => $self,
695 beg => $beg, 841 beg => $beg,
696 end => $end, 842 end => $end,
843 ncol => $self->ncol,
697 len => ($end - $beg) * $self->ncol + $self->ROW_l ($end), 844 len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),
698 }, urxvt::line:: 845 }, urxvt::line::
699} 846}
700 847
701sub urxvt::line::t { 848sub urxvt::line::t {
702 my ($self) = @_; 849 my ($self) = @_;
703 850
851 if (@_ > 1)
852 {
853 $self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
854 for $self->{beg} .. $self->{end};
855 }
856
857 defined wantarray &&
704 substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}), 858 substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),
705 0, $self->{len} 859 0, $self->{len}
706} 860}
707 861
708sub urxvt::line::r { 862sub urxvt::line::r {
709 my ($self) = @_; 863 my ($self) = @_;
710 864
865 if (@_ > 1)
866 {
867 $self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
868 for $self->{beg} .. $self->{end};
869 }
870
871 if (defined wantarray) {
711 my $rend = [ 872 my $rend = [
712 map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end} 873 map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}
713 ]; 874 ];
714 $#$rend = $self->{len} - 1; 875 $#$rend = $self->{len} - 1;
715 $rend 876 return $rend;
877 }
878
879 ()
716} 880}
717 881
718sub urxvt::line::beg { $_[0]{beg} } 882sub urxvt::line::beg { $_[0]{beg} }
719sub urxvt::line::end { $_[0]{end} } 883sub urxvt::line::end { $_[0]{end} }
720sub urxvt::line::l { $_[0]{len} } 884sub urxvt::line::l { $_[0]{len} }
721 885
722sub urxvt::line::offset_of { 886sub urxvt::line::offset_of {
723 my ($self, $row, $col) = @_; 887 my ($self, $row, $col) = @_;
724 888
725 ($row - $self->{beg}) * $self->{term}->ncol + $col 889 ($row - $self->{beg}) * $self->{ncol} + $col
726} 890}
727 891
728sub urxvt::line::coord_of { 892sub urxvt::line::coord_of {
729 my ($self, $offset) = @_; 893 my ($self, $offset) = @_;
730 894
731 use integer; 895 use integer;
732 896
733 ( 897 (
734 $offset / $self->{term}->ncol + $self->{beg}, 898 $offset / $self->{ncol} + $self->{beg},
735 $offset % $self->{term}->ncol 899 $offset % $self->{ncol}
736 ) 900 )
737} 901}
738 902
739=item ($row, $col) = $line->coord_of ($offset) 903=item ($row, $col) = $line->coord_of ($offset)
740=item $text = $term->special_encode $string 904=item $text = $term->special_encode $string

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