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Revision 1.18 by root, Tue Jan 3 02:01:27 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
44Miscellaneous selection modifications. 44Intelligent selection. This extension tries to be more intelligent when
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>.
48
49It also offers the following bindable event:
45 50
46=over 4 51=over 4
47 52
48=item rot13 53=item rot13
49 54
52 URxvt.keysym.C-M-r: perl:selection:rot13 57 URxvt.keysym.C-M-r: perl:selection:rot13
53 58
54=back 59=back
55 60
56=item digital-clock 61=item digital-clock
62
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.
68
69=item example-refresh-hooks
57 70
58Displays 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
59window. Illustrates overwriting the refresh callbacks to create your own 72window. Illustrates overwriting the refresh callbacks to create your own
60overlays or changes. 73overlays or changes.
61 74
62=item simple-overlay-clock 75=item example-filter-input
63 76
64Displays a digital clock using the built-in overlay (colourful, useless). 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.
65 81
66=back 82=back
67 83
68=head2 General API Considerations 84=head2 General API Considerations
69 85
70All objects (such as terminals, time watchers etc.) are typical 86All objects (such as terminals, time watchers etc.) are typical
71reference-to-hash objects. The hash can be used to store anything you 87reference-to-hash objects. The hash can be used to store anything you
72like. All members starting with an underscore (such as C<_ptr> or 88like. All members starting with an underscore (such as C<_ptr> or
73C<_hook>) are reserved for internal uses and must not be accessed or 89C<_hook>) are reserved for internal uses and B<MUST NOT> be accessed or
74modified). 90modified).
75 91
76When 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
77emptied, 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
78the 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
79terminal is destroyed. 95terminal is destroyed.
80 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
81=head2 Hooks 120=head2 Hooks
82 121
83The following subroutines can be declared in loaded scripts, and will be called 122The following subroutines can be declared in loaded scripts, and will be
84whenever the relevant event happens. 123called whenever the relevant event happens.
124
125The first argument passed to them is an object private to each terminal
126and extension package. You can call all C<urxvt::term> methods on it, but
127its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
128object that is shared between all packages is stored in the C<term>
129member.
85 130
86All of them must return a boolean value. If it is true, then the event 131All of them must return a boolean value. If it is true, then the event
87counts as being I<consumed>, and the invocation of other hooks is skipped, 132counts as being I<consumed>, and the invocation of other hooks is skipped,
88and the relevant action might not be carried out by the C++ code. 133and the relevant action might not be carried out by the C++ code.
89 134
122requested from the server. The selection text can be queried and changed 167requested from the server. The selection text can be queried and changed
123by calling C<< $term->selection >>. 168by calling C<< $term->selection >>.
124 169
125Returning a true value aborts selection grabbing. It will still be hilighted. 170Returning a true value aborts selection grabbing. It will still be hilighted.
126 171
172=item on_sel_extend $term
173
174Called whenever the user tries to extend the selection (e.g. with a double
175click) and is either supposed to return false (normal operation), or
176should extend the selection itelf and return true to suppress the built-in
177processing.
178
179See the F<selection> example extension.
180
127=item on_focus_in $term 181=item on_focus_in $term
128 182
129Called whenever the window gets the keyboard focus, before urxvt does 183Called whenever the window gets the keyboard focus, before urxvt does
130focus in processing. 184focus in processing.
131 185
151number of lines that will be in the scrollback buffer. 205number of lines that will be in the scrollback buffer.
152 206
153=item on_tty_activity $term *NYI* 207=item on_tty_activity $term *NYI*
154 208
155Called 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.
156 245
157=item on_refresh_begin $term 246=item on_refresh_begin $term
158 247
159Called just before the screen gets redrawn. Can be used for overlay 248Called just before the screen gets redrawn. Can be used for overlay
160or similar effects by modify terminal contents in refresh_begin, and 249or similar effects by modify terminal contents in refresh_begin, and
171C<perl:string> action bound to it (see description of the B<keysym> 260C<perl:string> action bound to it (see description of the B<keysym>
172resource in the @@RXVT_NAME@@(1) manpage). 261resource in the @@RXVT_NAME@@(1) manpage).
173 262
174=back 263=back
175 264
265=head2 Variables in the C<urxvt> Package
266
267=over 4
268
269=item $urxvt::TERM
270
271The current terminal. Whenever a callback/Hook is bein executed, this
272variable stores the current C<urxvt::term> object.
273
274=back
275
176=head2 Functions in the C<urxvt> Package 276=head2 Functions in the C<urxvt> Package
177 277
178=over 4 278=over 4
179 279
180=item urxvt::fatal $errormessage 280=item urxvt::fatal $errormessage
193correct place, e.g. on stderr of the connecting urxvtc client. 293correct place, e.g. on stderr of the connecting urxvtc client.
194 294
195=item $time = urxvt::NOW 295=item $time = urxvt::NOW
196 296
197Returns the "current time" (as per the event loop). 297Returns the "current time" (as per the event loop).
298
299=back
198 300
199=head2 RENDITION 301=head2 RENDITION
200 302
201Rendition bitsets contain information about colour, font, font styles and 303Rendition bitsets contain information about colour, font, font styles and
202similar information for each screen cell. 304similar information for each screen cell.
218Return the rendition mask used for overlays by default. 320Return the rendition mask used for overlays by default.
219 321
220=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline 322=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline
221 323
222Return the bit that enabled bold, italic, blink, reverse-video and 324Return the bit that enabled bold, italic, blink, reverse-video and
223underline, respectively. To enable such a style, just or it onto the 325underline, respectively. To enable such a style, just logically OR it into
224bitset. 326the bitset.
225 327
226=item $foreground = urxvt::GET_BASEFG $rend 328=item $foreground = urxvt::GET_BASEFG $rend
227 329
228=item $background = urxvt::GET_BASEBG $rend 330=item $background = urxvt::GET_BASEBG $rend
229 331
234=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour) 336=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)
235 337
236Replace the foreground/background colour in the rendition mask with the 338Replace the foreground/background colour in the rendition mask with the
237specified one. 339specified one.
238 340
341=item $value = urxvt::GET_CUSTOM ($rend)
342
343Return the "custom" value: Every rendition has 5 bits for use by
344extensions. They can be set and changed as you like and are initially
345zero.
346
347=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)
348
349Change the custom value.
350
239=back 351=back
240 352
241=cut 353=cut
242 354
243package urxvt; 355package urxvt;
244 356
245use strict; 357use strict;
358use Scalar::Util ();
246 359
247our $term; 360our $TERM;
248our @HOOKNAME; 361our @HOOKNAME;
249our $LIBDIR; 362our $LIBDIR;
250 363
251BEGIN { 364BEGIN {
252 urxvt->bootstrap; 365 urxvt->bootstrap;
277 my $name = $HOOKNAME[$htype]; 390 my $name = $HOOKNAME[$htype];
278 391
279 my $ref = $pkg->can ("on_" . lc $name) 392 my $ref = $pkg->can ("on_" . lc $name)
280 or next; 393 or next;
281 394
282 $term->{_hook}[$htype]{$ref*1} = $ref; 395 $TERM->{_hook}[$htype]{$pkg} = $ref;
283 $hook_count[$htype]++ 396 $hook_count[$htype]++
284 or set_should_invoke $htype, 1; 397 or set_should_invoke $htype, 1;
285 } 398 }
286} 399}
287 400
309 422
310 $pkg 423 $pkg
311 } 424 }
312} 425}
313 426
427our $retval; # return value for urxvt
428
314# called by the rxvt core 429# called by the rxvt core
315sub invoke { 430sub invoke {
316 local $term = shift; 431 local $TERM = shift;
317 my $htype = shift; 432 my $htype = shift;
318 433
319 if ($htype == 0) { # INIT 434 if ($htype == 0) { # INIT
320 my @dirs = ((split /:/, $term->resource ("perl_lib")), "$LIBDIR/perl"); 435 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
321 436
322 for my $ext (split /:/, $term->resource ("perl_ext")) { 437 for my $ext (map { split /:/, $TERM->resource ("perl_ext_$_") } 1, 2) {
323 my @files = grep -f $_, map "$_/$ext", @dirs; 438 my @files = grep -f $_, map "$_/$ext", @dirs;
324 439
325 if (@files) { 440 if (@files) {
326 register_package script_package $files[0]; 441 register_package script_package $files[0];
327 } else { 442 } else {
328 warn "perl extension '$ext' not found in perl library search path\n"; 443 warn "perl extension '$ext' not found in perl library search path\n";
329 } 444 }
330 } 445 }
446 }
331 447
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 $proxy
462 },
463 @_,
464 ) and last;
465 }
466 }
467
332 } elsif ($htype == 1) { # DESTROY 468 if ($htype == 1) { # DESTROY
469 # remove hooks if unused
333 if (my $hook = $term->{_hook}) { 470 if (my $hook = $TERM->{_hook}) {
334 for my $htype (0..$#$hook) { 471 for my $htype (0..$#$hook) {
335 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} } 472 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
336 or set_should_invoke $htype, 0; 473 or set_should_invoke $htype, 0;
337 } 474 }
338 } 475 }
476
477 # clear package objects
478 %$_ = () for values %{ $TERM->{_pkg} };
479
480 # clear package
481 %$TERM = ();
339 } 482 }
340 483
341 my $cb = $term->{_hook}[$htype] 484 $retval
342 or return;
343
344 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $term, @_) . ")"
345 if $verbosity >= 10;
346
347 while (my ($k, $v) = each %$cb) {
348 return 1 if $v->($term, @_);
349 }
350
351 0
352} 485}
353 486
354=back 487sub urxvt::term::proxy::AUTOLOAD {
488 $urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/
489 or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";
490
491 eval qq{
492 sub $urxvt::term::proxy::AUTOLOAD {
493 my \$proxy = shift;
494 \$proxy->{term}->$1 (\@_)
495 }
496 1
497 } or die "FATAL: unable to compile method forwarder: $@";
498
499 goto &$urxvt::term::proxy::AUTOLOAD;
500}
355 501
356=head2 The C<urxvt::term> Class 502=head2 The C<urxvt::term> Class
357 503
358=over 4 504=over 4
359 505
381 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 527 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
382 borderLess color cursorBlink cursorUnderline cutchars delete_key 528 borderLess color cursorBlink cursorUnderline cutchars delete_key
383 display_name embed ext_bwidth fade font geometry hold iconName 529 display_name embed ext_bwidth fade font geometry hold iconName
384 imFont imLocale inputMethod insecure int_bwidth intensityStyles 530 imFont imLocale inputMethod insecure int_bwidth intensityStyles
385 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 531 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier
386 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext 532 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2
387 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 533 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd
388 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 534 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating
389 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 535 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput
390 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 536 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle
391 shade term_name title transparent transparent_all tripleclickwords 537 shade term_name title transparent transparent_all tripleclickwords
397 my ($self, $name) = (shift, shift); 543 my ($self, $name) = (shift, shift);
398 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 544 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
399 goto &urxvt::term::_resource; 545 goto &urxvt::term::_resource;
400} 546}
401 547
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, $col])
554
555Return the current coordinates of the text cursor position and optionally
556set it (which is usually bad as applications don't expect that).
557
402=item ($row, $col) = $term->selection_mark ([$row, $col]) 558=item ($row, $col) = $term->selection_mark ([$row, $col])
403 559
404=item ($row, $col) = $term->selection_beg ([$row, $col]) 560=item ($row, $col) = $term->selection_beg ([$row, $col])
405 561
406=item ($row, $col) = $term->selection_end ([$row, $col]) 562=item ($row, $col) = $term->selection_end ([$row, $col])
415 571
416=item $oldtext = $term->selection ([$newtext]) 572=item $oldtext = $term->selection ([$newtext])
417 573
418Return the current selection text and optionally replace it by C<$newtext>. 574Return the current selection text and optionally replace it by C<$newtext>.
419 575
420=item $term->scr_overlay ($x, $y, $text) 576#=item $term->overlay ($x, $y, $text)
421 577#
422Create a simple multi-line overlay box. See the next method for details. 578#Create a simple multi-line overlay box. See the next method for details.
423 579#
424=cut 580#=cut
425 581#
426sub urxvt::term::scr_overlay { 582#sub urxvt::term::scr_overlay {
427 my ($self, $x, $y, $text) = @_; 583# my ($self, $x, $y, $text) = @_;
428 584#
429 my @lines = split /\n/, $text; 585# my @lines = split /\n/, $text;
430 586#
431 my $w = 0; 587# my $w = 0;
432 for (map $self->strwidth ($_), @lines) { 588# for (map $self->strwidth ($_), @lines) {
433 $w = $_ if $w < $_; 589# $w = $_ if $w < $_;
434 } 590# }
435 591#
436 $self->scr_overlay_new ($x, $y, $w, scalar @lines); 592# $self->scr_overlay_new ($x, $y, $w, scalar @lines);
437 $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines; 593# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;
438} 594#}
439 595
440=item $term->scr_overlay_new ($x, $y, $width, $height) 596=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
441 597
442Create a new (empty) overlay at the given position with the given 598Create a new (empty) overlay at the given position with the given
443width/height. A border will be put around the box. If either C<$x> or 599width/height. C<$rstyle> defines the initial rendition style
444C<$y> is negative, then this is counted from the right/bottom side, 600(default: C<OVERLAY_RSTYLE>).
445respectively.
446 601
447=item $term->scr_overlay_off 602If C<$border> is C<2> (default), then a decorative border will be put
603around the box.
448 604
449Switch the overlay off again. 605If either C<$x> or C<$y> is negative, then this is counted from the
606right/bottom side, respectively.
450 607
451=item $term->scr_overlay_set_char ($x, $y, $char, $rend = OVERLAY_RSTYLE) 608This method returns an urxvt::overlay object. The overlay will be visible
609as long as the perl object is referenced.
452 610
453Put a single character (specified numerically) at the given overlay 611The methods currently supported on C<urxvt::overlay> objects are:
454position.
455 612
613=over 4
614
456=item $term->scr_overlay_set ($x, $y, $text) 615=item $overlay->set ($x, $y, $text, $rend)
457 616
458Write a string at the given position into the overlay. 617Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts
618text in rxvt-unicode's special encoding and an array of rendition values
619at a specific position inside the overlay.
620
621=item $overlay->hide
622
623If visible, hide the overlay, but do not destroy it.
624
625=item $overlay->show
626
627If hidden, display the overlay again.
628
629=back
459 630
460=item $cellwidth = $term->strwidth $string 631=item $cellwidth = $term->strwidth $string
461 632
462Returns the number of screen-cells this string would need. Correctly 633Returns the number of screen-cells this string would need. Correctly
463accounts for wide and combining characters. 634accounts for wide and combining characters.
467Convert the given text string into the corresponding locale encoding. 638Convert the given text string into the corresponding locale encoding.
468 639
469=item $string = $term->locale_decode $octets 640=item $string = $term->locale_decode $octets
470 641
471Convert the given locale-encoded octets into a perl string. 642Convert the given locale-encoded octets into a perl string.
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.
472 654
473=item $term->tt_write ($octets) 655=item $term->tt_write ($octets)
474 656
475Write 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
476pass characters instead of octets, you should convert your strings first 658pass characters instead of octets, you should convert your strings first
477to the locale-specific encoding using C<< $term->locale_encode >>. 659to the locale-specific encoding using C<< $term->locale_encode >>.
478 660
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
479=item $nrow = $term->nrow 671=item $terminal_rows = $term->nrow
480 672
481=item $ncol = $term->ncol 673=item $terminal_columns = $term->ncol
482 674
483Return the number of rows/columns of the terminal window (i.e. as 675=item $has_focus = $term->focus
484specified by C<-geometry>, excluding any scrollback).
485 676
486=item $nsaved = $term->nsaved 677=item $is_mapped = $term->mapped
487 678
488Returns 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.
489 686
490=item $view_start = $term->view_start ([$newvalue]) 687=item $view_start = $term->view_start ([$newvalue])
491 688
492Returns the negative row number of the topmost line. Minimum value is 689Returns the negative row number of the topmost line. Minimum value is
493C<0>, which displays the normal terminal contents. Larger values scroll 690C<0>, which displays the normal terminal contents. Larger values scroll
504=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]]) 701=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
505 702
506Returns the text of the entire row with number C<$row_number>. Row C<0> 703Returns the text of the entire row with number C<$row_number>. Row C<0>
507is 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
508terminal 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
509line C<< -$term->nsaved >>. 706line C<< -$term->nsaved >>. Nothing will be returned if a nonexistent line
707is requested.
510 708
511If 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
512line, 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
513to 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
514automatically be updated. 712automatically be updated.
536 734
537See the section on RENDITION, above. 735See the section on RENDITION, above.
538 736
539=item $length = $term->ROW_l ($row_number[, $new_length]) 737=item $length = $term->ROW_l ($row_number[, $new_length])
540 738
541Returns 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
542it 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
543means all characters are in use and it is continued on the next row. 741line is joined with the following one.
544 742
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)
545=item $text = $term->special_encode $string 864=item $text = $term->special_encode $string
546 865
547Converts a perl string into the special encoding used by rxvt-unicode, 866Converts a perl string into the special encoding used by rxvt-unicode,
548where one character corresponds to one screen cell. See 867where one character corresponds to one screen cell. See
549C<< $term->ROW_t >> for details. 868C<< $term->ROW_t >> for details.
558=head2 The C<urxvt::timer> Class 877=head2 The C<urxvt::timer> Class
559 878
560This class implements timer watchers/events. Time is represented as a 879This class implements timer watchers/events. Time is represented as a
561fractional number of seconds since the epoch. Example: 880fractional number of seconds since the epoch. Example:
562 881
563 # create a digital clock display in upper right corner 882 $term->{overlay} = $term->overlay (-1, 0, 8, 1, urxvt::OVERLAY_RSTYLE, 0);
564 $term->{timer} = urxvt::timer 883 $term->{timer} = urxvt::timer
565 ->new 884 ->new
566 ->start (urxvt::NOW) 885 ->interval (1)
567 ->cb (sub { 886 ->cb (sub {
568 my ($timer) = @_;
569 my $time = $timer->at;
570 $timer->start ($time + 1);
571 $self->scr_overlay (-1, 0, 887 $term->{overlay}->set (0, 0,
572 POSIX::strftime "%H:%M:%S", localtime $time); 888 sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
573 }); 889 });
574 890
575=over 4 891=over 4
576 892
577=item $timer = new urxvt::timer 893=item $timer = new urxvt::timer
578 894
579Create a new timer object in stopped state. 895Create a new timer object in started state. It is scheduled to fire
896immediately.
580 897
581=item $timer = $timer->cb (sub { my ($timer) = @_; ... }) 898=item $timer = $timer->cb (sub { my ($timer) = @_; ... })
582 899
583Set the callback to be called when the timer triggers. 900Set the callback to be called when the timer triggers.
584 901
587Return the time this watcher will fire next. 904Return the time this watcher will fire next.
588 905
589=item $timer = $timer->set ($tstamp) 906=item $timer = $timer->set ($tstamp)
590 907
591Set the time the event is generated to $tstamp. 908Set the time the event is generated to $tstamp.
909
910=item $timer = $timer->interval ($interval)
911
912Normally (and when C<$interval> is C<0>), the timer will automatically
913stop after it has fired once. If C<$interval> is non-zero, then the timer
914is automatically rescheduled at the given intervals.
592 915
593=item $timer = $timer->start 916=item $timer = $timer->start
594 917
595Start the timer. 918Start the timer.
596 919
659This variable controls the verbosity level of the perl extension. Higher 982This variable controls the verbosity level of the perl extension. Higher
660numbers indicate more verbose output. 983numbers indicate more verbose output.
661 984
662=over 4 985=over 4
663 986
664=item 0 - only fatal messages 987=item =0 - only fatal messages
665 988
666=item 3 - script loading and management 989=item =3 - script loading and management
667 990
668=item 10 - all events received 991=item =10 - all events received
669 992
670=back 993=back
671 994
672=head1 AUTHOR 995=head1 AUTHOR
673 996

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