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Revision 1.18 by root, Tue Jan 3 02:01:27 2006 UTC vs.
Revision 1.34 by root, Fri Jan 6 01:16:58 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 example-refresh-hooks
57 66
58Displays a very simple digital clock in the upper right corner of the 67Displays a very simple digital clock in the upper right corner of the
59window. Illustrates overwriting the refresh callbacks to create your own 68window. Illustrates overwriting the refresh callbacks to create your own
60overlays or changes. 69overlays or changes.
61 70
62=item simple-overlay-clock 71=item mark-urls
63 72
64Displays a digital clock using the built-in overlay (colourful, useless). 73A not very useful example of filtering all text output to the terminal, by
74underlining all urls that matches a certain regex (i.e. some urls :). It
75is not very useful because urls that are output in multiple steps (e.g.
76when typing them) do not get marked.
65 77
66=back 78=back
67 79
68=head2 General API Considerations 80=head2 General API Considerations
69 81
70All objects (such as terminals, time watchers etc.) are typical 82All objects (such as terminals, time watchers etc.) are typical
71reference-to-hash objects. The hash can be used to store anything you 83reference-to-hash objects. The hash can be used to store anything you
72like. All members starting with an underscore (such as C<_ptr> or 84like. All members starting with an underscore (such as C<_ptr> or
73C<_hook>) are reserved for internal uses and must not be accessed or 85C<_hook>) are reserved for internal uses and B<MUST NOT> be accessed or
74modified). 86modified).
75 87
76When objects are destroyed on the C++ side, the perl object hashes are 88When 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 89emptied, 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 90the like inside the terminal object so they get destroyed as soon as the
79terminal is destroyed. 91terminal is destroyed.
80 92
93Argument names also often indicate the type of a parameter. Here are some
94hints on what they mean:
95
96=over 4
97
98=item $text
99
100Rxvt-unicodes special way of encoding text, where one "unicode" character
101always represents one screen cell. See L<row_t> for a discussion of this format.
102
103=item $string
104
105A perl text string, with an emphasis on I<text>. It can store all unicode
106characters and is to be distinguished with text encoded in a specific
107encoding (often locale-specific) and binary data.
108
109=item $octets
110
111Either binary data or - more common - a text string encoded in a
112locale-specific way.
113
114=back
115
81=head2 Hooks 116=head2 Hooks
82 117
83The following subroutines can be declared in loaded scripts, and will be called 118The following subroutines can be declared in loaded scripts, and will be
84whenever the relevant event happens. 119called whenever the relevant event happens.
120
121The first argument passed to them is an object private to each terminal
122and extension package. You can call all C<urxvt::term> methods on it, but
123its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
124object that is shared between all packages is stored in the C<term>
125member.
85 126
86All of them must return a boolean value. If it is true, then the event 127All 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, 128counts 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. 129and the relevant action might not be carried out by the C++ code.
89 130
122requested from the server. The selection text can be queried and changed 163requested from the server. The selection text can be queried and changed
123by calling C<< $term->selection >>. 164by calling C<< $term->selection >>.
124 165
125Returning a true value aborts selection grabbing. It will still be hilighted. 166Returning a true value aborts selection grabbing. It will still be hilighted.
126 167
168=item on_sel_extend $term
169
170Called whenever the user tries to extend the selection (e.g. with a double
171click) and is either supposed to return false (normal operation), or
172should extend the selection itelf and return true to suppress the built-in
173processing.
174
175See the F<selection> example extension.
176
127=item on_focus_in $term 177=item on_focus_in $term
128 178
129Called whenever the window gets the keyboard focus, before urxvt does 179Called whenever the window gets the keyboard focus, before urxvt does
130focus in processing. 180focus in processing.
131 181
151number of lines that will be in the scrollback buffer. 201number of lines that will be in the scrollback buffer.
152 202
153=item on_tty_activity $term *NYI* 203=item on_tty_activity $term *NYI*
154 204
155Called whenever the program(s) running in the urxvt window send output. 205Called whenever the program(s) running in the urxvt window send output.
206
207=item on_osc_seq $term, $string
208
209Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
210operating system command) is processed. Cursor position and other state
211information is up-to-date when this happens. For interoperability, the
212string should start with the extension name and a colon, to distinguish
213it from commands for other extensions, and this might be enforced in the
214future.
215
216Be careful not ever to trust (in a security sense) the data you receive,
217as its source can not easily be controleld (e-mail content, messages from
218other users on the same system etc.).
219
220=item on_add_lines $term, $string
221
222Called whenever text is about to be output, with the text as argument. You
223can filter/change and output the text yourself by returning a true value
224and calling C<< $term->scr_add_lines >> yourself. Please note that this
225might be very slow, however, as your hook is called for B<all> text being
226output.
156 227
157=item on_refresh_begin $term 228=item on_refresh_begin $term
158 229
159Called just before the screen gets redrawn. Can be used for overlay 230Called just before the screen gets redrawn. Can be used for overlay
160or similar effects by modify terminal contents in refresh_begin, and 231or similar effects by modify terminal contents in refresh_begin, and
171C<perl:string> action bound to it (see description of the B<keysym> 242C<perl:string> action bound to it (see description of the B<keysym>
172resource in the @@RXVT_NAME@@(1) manpage). 243resource in the @@RXVT_NAME@@(1) manpage).
173 244
174=back 245=back
175 246
247=head2 Variables in the C<urxvt> Package
248
249=over 4
250
251=item $urxvt::TERM
252
253The current terminal. Whenever a callback/Hook is bein executed, this
254variable stores the current C<urxvt::term> object.
255
256=back
257
176=head2 Functions in the C<urxvt> Package 258=head2 Functions in the C<urxvt> Package
177 259
178=over 4 260=over 4
179 261
180=item urxvt::fatal $errormessage 262=item urxvt::fatal $errormessage
193correct place, e.g. on stderr of the connecting urxvtc client. 275correct place, e.g. on stderr of the connecting urxvtc client.
194 276
195=item $time = urxvt::NOW 277=item $time = urxvt::NOW
196 278
197Returns the "current time" (as per the event loop). 279Returns the "current time" (as per the event loop).
280
281=back
198 282
199=head2 RENDITION 283=head2 RENDITION
200 284
201Rendition bitsets contain information about colour, font, font styles and 285Rendition bitsets contain information about colour, font, font styles and
202similar information for each screen cell. 286similar information for each screen cell.
218Return the rendition mask used for overlays by default. 302Return the rendition mask used for overlays by default.
219 303
220=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline 304=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline
221 305
222Return the bit that enabled bold, italic, blink, reverse-video and 306Return the bit that enabled bold, italic, blink, reverse-video and
223underline, respectively. To enable such a style, just or it onto the 307underline, respectively. To enable such a style, just logically OR it into
224bitset. 308the bitset.
225 309
226=item $foreground = urxvt::GET_BASEFG $rend 310=item $foreground = urxvt::GET_BASEFG $rend
227 311
228=item $background = urxvt::GET_BASEBG $rend 312=item $background = urxvt::GET_BASEBG $rend
229 313
234=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour) 318=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)
235 319
236Replace the foreground/background colour in the rendition mask with the 320Replace the foreground/background colour in the rendition mask with the
237specified one. 321specified one.
238 322
323=item $value = urxvt::GET_CUSTOM ($rend)
324
325Return the "custom" value: Every rendition has 5 bits for use by
326extensions. They can be set and changed as you like and are initially
327zero.
328
329=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)
330
331Change the custom value.
332
239=back 333=back
240 334
241=cut 335=cut
242 336
243package urxvt; 337package urxvt;
244 338
245use strict; 339use strict;
340use Scalar::Util ();
246 341
247our $term; 342our $TERM;
248our @HOOKNAME; 343our @HOOKNAME;
249our $LIBDIR; 344our $LIBDIR;
250 345
251BEGIN { 346BEGIN {
252 urxvt->bootstrap; 347 urxvt->bootstrap;
277 my $name = $HOOKNAME[$htype]; 372 my $name = $HOOKNAME[$htype];
278 373
279 my $ref = $pkg->can ("on_" . lc $name) 374 my $ref = $pkg->can ("on_" . lc $name)
280 or next; 375 or next;
281 376
282 $term->{_hook}[$htype]{$ref*1} = $ref; 377 $TERM->{_hook}[$htype]{$pkg} = $ref;
283 $hook_count[$htype]++ 378 $hook_count[$htype]++
284 or set_should_invoke $htype, 1; 379 or set_should_invoke $htype, 1;
285 } 380 }
286} 381}
287 382
309 404
310 $pkg 405 $pkg
311 } 406 }
312} 407}
313 408
409our $retval; # return value for urxvt
410
314# called by the rxvt core 411# called by the rxvt core
315sub invoke { 412sub invoke {
316 local $term = shift; 413 local $TERM = shift;
317 my $htype = shift; 414 my $htype = shift;
318 415
319 if ($htype == 0) { # INIT 416 if ($htype == 0) { # INIT
320 my @dirs = ((split /:/, $term->resource ("perl_lib")), "$LIBDIR/perl"); 417 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
321 418
322 for my $ext (split /:/, $term->resource ("perl_ext")) { 419 for my $ext (map { split /:/, $TERM->resource ("perl_ext_$_") } 1, 2) {
323 my @files = grep -f $_, map "$_/$ext", @dirs; 420 my @files = grep -f $_, map "$_/$ext", @dirs;
324 421
325 if (@files) { 422 if (@files) {
326 register_package script_package $files[0]; 423 register_package script_package $files[0];
327 } else { 424 } else {
328 warn "perl extension '$ext' not found in perl library search path\n"; 425 warn "perl extension '$ext' not found in perl library search path\n";
329 } 426 }
330 } 427 }
428 }
331 429
430 $retval = undef;
431
432 if (my $cb = $TERM->{_hook}[$htype]) {
433 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
434 if $verbosity >= 10;
435
436 keys %$cb;
437
438 while (my ($pkg, $cb) = each %$cb) {
439 $retval = $cb->(
440 $TERM->{_pkg}{$pkg} ||= do {
441 my $proxy = bless { }, urxvt::term::proxy::;
442 Scalar::Util::weaken ($proxy->{term} = $TERM);
443 $proxy
444 },
445 @_,
446 ) and last;
447 }
448 }
449
332 } elsif ($htype == 1) { # DESTROY 450 if ($htype == 1) { # DESTROY
451 # remove hooks if unused
333 if (my $hook = $term->{_hook}) { 452 if (my $hook = $TERM->{_hook}) {
334 for my $htype (0..$#$hook) { 453 for my $htype (0..$#$hook) {
335 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} } 454 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
336 or set_should_invoke $htype, 0; 455 or set_should_invoke $htype, 0;
337 } 456 }
338 } 457 }
458
459 # clear package objects
460 %$_ = () for values %{ $TERM->{_pkg} };
461
462 # clear package
463 %$TERM = ();
339 } 464 }
340 465
341 my $cb = $term->{_hook}[$htype] 466 $retval
342 or return;
343
344 verbose 10, "$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} 467}
353 468
354=back 469sub urxvt::term::proxy::AUTOLOAD {
470 $urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/
471 or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";
472
473 eval qq{
474 sub $urxvt::term::proxy::AUTOLOAD {
475 my \$proxy = shift;
476 \$proxy->{term}->$1 (\@_)
477 }
478 1
479 } or die "FATAL: unable to compile method forwarder: $@";
480
481 goto &$urxvt::term::proxy::AUTOLOAD;
482}
355 483
356=head2 The C<urxvt::term> Class 484=head2 The C<urxvt::term> Class
357 485
358=over 4 486=over 4
359 487
381 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 509 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
382 borderLess color cursorBlink cursorUnderline cutchars delete_key 510 borderLess color cursorBlink cursorUnderline cutchars delete_key
383 display_name embed ext_bwidth fade font geometry hold iconName 511 display_name embed ext_bwidth fade font geometry hold iconName
384 imFont imLocale inputMethod insecure int_bwidth intensityStyles 512 imFont imLocale inputMethod insecure int_bwidth intensityStyles
385 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 513 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier
386 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext 514 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2
387 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 515 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd
388 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 516 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating
389 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 517 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput
390 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 518 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle
391 shade term_name title transparent transparent_all tripleclickwords 519 shade term_name title transparent transparent_all tripleclickwords
397 my ($self, $name) = (shift, shift); 525 my ($self, $name) = (shift, shift);
398 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 526 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
399 goto &urxvt::term::_resource; 527 goto &urxvt::term::_resource;
400} 528}
401 529
530=item $rend = $term->rstyle ([$new_rstyle])
531
532Return and optionally change the current rendition. Text that is output by
533the terminal application will use this style.
534
535=item ($row, $col) = $term->screen_cur ([$row, $col])
536
537Return the current coordinates of the text cursor position and optionally
538set it (which is usually bad as applications don't expect that).
539
402=item ($row, $col) = $term->selection_mark ([$row, $col]) 540=item ($row, $col) = $term->selection_mark ([$row, $col])
403 541
404=item ($row, $col) = $term->selection_beg ([$row, $col]) 542=item ($row, $col) = $term->selection_beg ([$row, $col])
405 543
406=item ($row, $col) = $term->selection_end ([$row, $col]) 544=item ($row, $col) = $term->selection_end ([$row, $col])
415 553
416=item $oldtext = $term->selection ([$newtext]) 554=item $oldtext = $term->selection ([$newtext])
417 555
418Return the current selection text and optionally replace it by C<$newtext>. 556Return the current selection text and optionally replace it by C<$newtext>.
419 557
420=item $term->scr_overlay ($x, $y, $text) 558#=item $term->overlay ($x, $y, $text)
421 559#
422Create a simple multi-line overlay box. See the next method for details. 560#Create a simple multi-line overlay box. See the next method for details.
423 561#
424=cut 562#=cut
425 563#
426sub urxvt::term::scr_overlay { 564#sub urxvt::term::scr_overlay {
427 my ($self, $x, $y, $text) = @_; 565# my ($self, $x, $y, $text) = @_;
428 566#
429 my @lines = split /\n/, $text; 567# my @lines = split /\n/, $text;
430 568#
431 my $w = 0; 569# my $w = 0;
432 for (map $self->strwidth ($_), @lines) { 570# for (map $self->strwidth ($_), @lines) {
433 $w = $_ if $w < $_; 571# $w = $_ if $w < $_;
434 } 572# }
435 573#
436 $self->scr_overlay_new ($x, $y, $w, scalar @lines); 574# $self->scr_overlay_new ($x, $y, $w, scalar @lines);
437 $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines; 575# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;
438} 576#}
439 577
440=item $term->scr_overlay_new ($x, $y, $width, $height) 578=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
441 579
442Create a new (empty) overlay at the given position with the given 580Create a new (empty) overlay at the given position with the given
443width/height. A border will be put around the box. If either C<$x> or 581width/height. C<$rstyle> defines the initial rendition style
444C<$y> is negative, then this is counted from the right/bottom side, 582(default: C<OVERLAY_RSTYLE>).
445respectively.
446 583
447=item $term->scr_overlay_off 584If C<$border> is C<2> (default), then a decorative border will be put
585around the box.
448 586
449Switch the overlay off again. 587If either C<$x> or C<$y> is negative, then this is counted from the
588right/bottom side, respectively.
450 589
451=item $term->scr_overlay_set_char ($x, $y, $char, $rend = OVERLAY_RSTYLE) 590This method returns an urxvt::overlay object. The overlay will be visible
591as long as the perl object is referenced.
452 592
453Put a single character (specified numerically) at the given overlay 593The methods currently supported on C<urxvt::overlay> objects are:
454position.
455 594
595=over 4
596
456=item $term->scr_overlay_set ($x, $y, $text) 597=item $overlay->set ($x, $y, $text, $rend)
457 598
458Write a string at the given position into the overlay. 599Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts
600text in rxvt-unicode's special encoding and an array of rendition values
601at a specific position inside the overlay.
602
603=item $overlay->hide
604
605If visible, hide the overlay, but do not destroy it.
606
607=item $overlay->show
608
609If hidden, display the overlay again.
610
611=back
459 612
460=item $cellwidth = $term->strwidth $string 613=item $cellwidth = $term->strwidth $string
461 614
462Returns the number of screen-cells this string would need. Correctly 615Returns the number of screen-cells this string would need. Correctly
463accounts for wide and combining characters. 616accounts for wide and combining characters.
467Convert the given text string into the corresponding locale encoding. 620Convert the given text string into the corresponding locale encoding.
468 621
469=item $string = $term->locale_decode $octets 622=item $string = $term->locale_decode $octets
470 623
471Convert the given locale-encoded octets into a perl string. 624Convert the given locale-encoded octets into a perl string.
625
626=item $term->scr_add_lines ($string)
627
628Write the given text string to the screen, as if output by the application
629running inside the terminal. It may not contain command sequences (escape
630codes), but is free to use line feeds, carriage returns and tabs. The
631string is a normal text string, not in locale-dependent encoding.
632
633Normally its not a good idea to use this function, as programs might be
634confused by changes in cursor position or scrolling. Its useful inside a
635C<on_add_lines> hook, though.
472 636
473=item $term->tt_write ($octets) 637=item $term->tt_write ($octets)
474 638
475Write the octets given in C<$data> to the tty (i.e. as program input). To 639Write the octets given in C<$data> to the tty (i.e. as program input). To
476pass characters instead of octets, you should convert your strings first 640pass characters instead of octets, you should convert your strings first
477to the locale-specific encoding using C<< $term->locale_encode >>. 641to the locale-specific encoding using C<< $term->locale_encode >>.
478 642
643=item $window_width = $term->width
644
645=item $window_height = $term->height
646
647=item $font_width = $term->fwidth
648
649=item $font_height = $term->fheight
650
651=item $font_ascent = $term->fbase
652
479=item $nrow = $term->nrow 653=item $terminal_rows = $term->nrow
480 654
481=item $ncol = $term->ncol 655=item $terminal_columns = $term->ncol
482 656
483Return the number of rows/columns of the terminal window (i.e. as 657=item $has_focus = $term->focus
484specified by C<-geometry>, excluding any scrollback).
485 658
486=item $nsaved = $term->nsaved 659=item $is_mapped = $term->mapped
487 660
488Returns the number of lines in the scrollback buffer. 661=item $max_scrollback = $term->saveLines
662
663=item $nrow_plus_saveLines = $term->total_rows
664
665=item $lines_in_scrollback = $term->nsaved
666
667Return various integers describing terminal characteristics.
489 668
490=item $view_start = $term->view_start ([$newvalue]) 669=item $view_start = $term->view_start ([$newvalue])
491 670
492Returns the negative row number of the topmost line. Minimum value is 671Returns the negative row number of the topmost line. Minimum value is
493C<0>, which displays the normal terminal contents. Larger values scroll 672C<0>, which displays the normal terminal contents. Larger values scroll
504=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]]) 683=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
505 684
506Returns the text of the entire row with number C<$row_number>. Row C<0> 685Returns 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 686is 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 687terminal line. The scrollback buffer starts at line C<-1> and extends to
509line C<< -$term->nsaved >>. 688line C<< -$term->nsaved >>. Nothing will be returned if a nonexistent line
689is requested.
510 690
511If C<$new_text> is specified, it will replace characters in the current 691If C<$new_text> is specified, it will replace characters in the current
512line, starting at column C<$start_col> (default C<0>), which is useful 692line, starting at column C<$start_col> (default C<0>), which is useful
513to replace only parts of a line. The font index in the rendition will 693to replace only parts of a line. The font index in the rendition will
514automatically be updated. 694automatically be updated.
536 716
537See the section on RENDITION, above. 717See the section on RENDITION, above.
538 718
539=item $length = $term->ROW_l ($row_number[, $new_length]) 719=item $length = $term->ROW_l ($row_number[, $new_length])
540 720
541Returns the number of screen cells that are in use ("the line length"). If 721Returns 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 722length"). 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. 723line is joined with the following one.
544 724
725=item $bool = $term->is_longer ($row_number)
726
727Returns true if the row is part of a multiple-row logical "line" (i.e.
728joined with the following row), which means all characters are in use
729and it is continued on the next row (and possibly a continuation of the
730previous row(s)).
731
732=item $line = $term->line ($row_number)
733
734Create and return a new C<urxvt::line> object that stores information
735about the logical line that row C<$row_number> is part of. It supports the
736following methods:
737
738=over 4
739
740=item $text = $line->t
741
742Returns the full text of the line, similar to C<ROW_t>
743
744=item $rend = $line->r
745
746Returns the full rendition array of the line, similar to C<ROW_r>
747
748=item $length = $line->l
749
750Returns the length of the line in cells, similar to C<ROW_l>.
751
752=item $rownum = $line->beg
753
754=item $rownum = $line->end
755
756Return the row number of the first/last row of the line, respectively.
757
758=item $offset = $line->offset_of ($row, $col)
759
760Returns the character offset of the given row|col pair within the logical
761line.
762
763=item ($row, $col) = $line->coord_of ($offset)
764
765Translates a string offset into terminal coordinates again.
766
767=back
768
769=cut
770
771sub urxvt::term::line {
772 my ($self, $row) = @_;
773
774 my $maxrow = $self->nrow - 1;
775
776 my ($beg, $end) = ($row, $row);
777
778 --$beg while $self->ROW_is_longer ($beg - 1);
779 ++$end while $self->ROW_is_longer ($end) && $end < $maxrow;
780
781 bless {
782 term => $self,
783 beg => $beg,
784 end => $end,
785 ncol => $self->ncol,
786 len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),
787 }, urxvt::line::
788}
789
790sub urxvt::line::t {
791 my ($self) = @_;
792
793 if (@_ > 1)
794 {
795 $self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
796 for $self->{beg} .. $self->{end};
797 }
798
799 defined wantarray &&
800 substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),
801 0, $self->{len}
802}
803
804sub urxvt::line::r {
805 my ($self) = @_;
806
807 if (@_ > 1)
808 {
809 $self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
810 for $self->{beg} .. $self->{end};
811 }
812
813 if (defined wantarray) {
814 my $rend = [
815 map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}
816 ];
817 $#$rend = $self->{len} - 1;
818 return $rend;
819 }
820
821 ()
822}
823
824sub urxvt::line::beg { $_[0]{beg} }
825sub urxvt::line::end { $_[0]{end} }
826sub urxvt::line::l { $_[0]{len} }
827
828sub urxvt::line::offset_of {
829 my ($self, $row, $col) = @_;
830
831 ($row - $self->{beg}) * $self->{ncol} + $col
832}
833
834sub urxvt::line::coord_of {
835 my ($self, $offset) = @_;
836
837 use integer;
838
839 (
840 $offset / $self->{ncol} + $self->{beg},
841 $offset % $self->{ncol}
842 )
843}
844
845=item ($row, $col) = $line->coord_of ($offset)
545=item $text = $term->special_encode $string 846=item $text = $term->special_encode $string
546 847
547Converts a perl string into the special encoding used by rxvt-unicode, 848Converts a perl string into the special encoding used by rxvt-unicode,
548where one character corresponds to one screen cell. See 849where one character corresponds to one screen cell. See
549C<< $term->ROW_t >> for details. 850C<< $term->ROW_t >> for details.
558=head2 The C<urxvt::timer> Class 859=head2 The C<urxvt::timer> Class
559 860
560This class implements timer watchers/events. Time is represented as a 861This class implements timer watchers/events. Time is represented as a
561fractional number of seconds since the epoch. Example: 862fractional number of seconds since the epoch. Example:
562 863
563 # create a digital clock display in upper right corner 864 $term->{overlay} = $term->overlay (-1, 0, 8, 1, urxvt::OVERLAY_RSTYLE, 0);
564 $term->{timer} = urxvt::timer 865 $term->{timer} = urxvt::timer
565 ->new 866 ->new
566 ->start (urxvt::NOW) 867 ->interval (1)
567 ->cb (sub { 868 ->cb (sub {
568 my ($timer) = @_;
569 my $time = $timer->at;
570 $timer->start ($time + 1);
571 $self->scr_overlay (-1, 0, 869 $term->{overlay}->set (0, 0,
572 POSIX::strftime "%H:%M:%S", localtime $time); 870 sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
573 }); 871 });
574 872
575=over 4 873=over 4
576 874
577=item $timer = new urxvt::timer 875=item $timer = new urxvt::timer
578 876
579Create a new timer object in stopped state. 877Create a new timer object in started state. It is scheduled to fire
878immediately.
580 879
581=item $timer = $timer->cb (sub { my ($timer) = @_; ... }) 880=item $timer = $timer->cb (sub { my ($timer) = @_; ... })
582 881
583Set the callback to be called when the timer triggers. 882Set the callback to be called when the timer triggers.
584 883
587Return the time this watcher will fire next. 886Return the time this watcher will fire next.
588 887
589=item $timer = $timer->set ($tstamp) 888=item $timer = $timer->set ($tstamp)
590 889
591Set the time the event is generated to $tstamp. 890Set the time the event is generated to $tstamp.
891
892=item $timer = $timer->interval ($interval)
893
894Normally (and when C<$interval> is C<0>), the timer will automatically
895stop after it has fired once. If C<$interval> is non-zero, then the timer
896is automatically rescheduled at the given intervals.
592 897
593=item $timer = $timer->start 898=item $timer = $timer->start
594 899
595Start the timer. 900Start the timer.
596 901
659This variable controls the verbosity level of the perl extension. Higher 964This variable controls the verbosity level of the perl extension. Higher
660numbers indicate more verbose output. 965numbers indicate more verbose output.
661 966
662=over 4 967=over 4
663 968
664=item 0 - only fatal messages 969=item =0 - only fatal messages
665 970
666=item 3 - script loading and management 971=item =3 - script loading and management
667 972
668=item 10 - all events received 973=item =10 - all events received
669 974
670=back 975=back
671 976
672=head1 AUTHOR 977=head1 AUTHOR
673 978

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