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Revision 1.18 by root, Tue Jan 3 02:01:27 2006 UTC vs.
Revision 1.37 by root, Fri Jan 6 03:40:19 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
92=over 4 137=over 4
93 138
94=item on_init $term 139=item on_init $term
95 140
96Called after a new terminal object has been initialized, but before 141Called after a new terminal object has been initialized, but before
97windows 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.
98 146
99=item on_reset $term 147=item on_reset $term
100 148
101Called 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
102control 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
122requested from the server. The selection text can be queried and changed 170requested from the server. The selection text can be queried and changed
123by calling C<< $term->selection >>. 171by calling C<< $term->selection >>.
124 172
125Returning a true value aborts selection grabbing. It will still be hilighted. 173Returning a true value aborts selection grabbing. It will still be hilighted.
126 174
175=item on_sel_extend $term
176
177Called whenever the user tries to extend the selection (e.g. with a double
178click) and is either supposed to return false (normal operation), or
179should extend the selection itelf and return true to suppress the built-in
180processing.
181
182See the F<selection> example extension.
183
127=item on_focus_in $term 184=item on_focus_in $term
128 185
129Called whenever the window gets the keyboard focus, before urxvt does 186Called whenever the window gets the keyboard focus, before urxvt does
130focus in processing. 187focus in processing.
131 188
151number of lines that will be in the scrollback buffer. 208number of lines that will be in the scrollback buffer.
152 209
153=item on_tty_activity $term *NYI* 210=item on_tty_activity $term *NYI*
154 211
155Called whenever the program(s) running in the urxvt window send output. 212Called whenever the program(s) running in the urxvt window send output.
213
214=item on_osc_seq $term, $string
215
216Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
217operating system command) is processed. Cursor position and other state
218information is up-to-date when this happens. For interoperability, the
219string should start with the extension name and a colon, to distinguish
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.
156 248
157=item on_refresh_begin $term 249=item on_refresh_begin $term
158 250
159Called just before the screen gets redrawn. Can be used for overlay 251Called just before the screen gets redrawn. Can be used for overlay
160or similar effects by modify terminal contents in refresh_begin, and 252or similar effects by modify terminal contents in refresh_begin, and
169 261
170Called whenever the user presses a key combination that has a 262Called whenever the user presses a key combination that has a
171C<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>
172resource in the @@RXVT_NAME@@(1) manpage). 264resource in the @@RXVT_NAME@@(1) manpage).
173 265
266=item on_key_press $term, $event
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. If
277the hook returns true, then the even will be ignored by rxvt-unicode.
278
279subwindow.
280
281=back
282
283=head2 Variables in the C<urxvt> Package
284
285=over 4
286
287=item $urxvt::TERM
288
289The current terminal. Whenever a callback/Hook is bein executed, this
290variable stores the current C<urxvt::term> object.
291
174=back 292=back
175 293
176=head2 Functions in the C<urxvt> Package 294=head2 Functions in the C<urxvt> Package
177 295
178=over 4 296=over 4
297
298=item $term = new urxvt [arg...]
299
300Creates a new terminal, very similar as if you had started it with
301C<system $binfile, arg...>. Croaks (and probably outputs an error message)
302if the new instance couldn't be created. Returns C<undef> if the new
303instance didn't initialise perl, and the terminal object otherwise. The
304C<init> and C<start> hooks will be called during the call.
179 305
180=item urxvt::fatal $errormessage 306=item urxvt::fatal $errormessage
181 307
182Fatally aborts execution with the given error message. Avoid at all 308Fatally aborts execution with the given error message. Avoid at all
183costs! The only time this is acceptable is when the terminal process 309costs! The only time this is acceptable is when the terminal process
193correct place, e.g. on stderr of the connecting urxvtc client. 319correct place, e.g. on stderr of the connecting urxvtc client.
194 320
195=item $time = urxvt::NOW 321=item $time = urxvt::NOW
196 322
197Returns the "current time" (as per the event loop). 323Returns the "current time" (as per the event loop).
324
325=back
198 326
199=head2 RENDITION 327=head2 RENDITION
200 328
201Rendition bitsets contain information about colour, font, font styles and 329Rendition bitsets contain information about colour, font, font styles and
202similar information for each screen cell. 330similar information for each screen cell.
218Return the rendition mask used for overlays by default. 346Return the rendition mask used for overlays by default.
219 347
220=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline 348=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline
221 349
222Return the bit that enabled bold, italic, blink, reverse-video and 350Return the bit that enabled bold, italic, blink, reverse-video and
223underline, respectively. To enable such a style, just or it onto the 351underline, respectively. To enable such a style, just logically OR it into
224bitset. 352the bitset.
225 353
226=item $foreground = urxvt::GET_BASEFG $rend 354=item $foreground = urxvt::GET_BASEFG $rend
227 355
228=item $background = urxvt::GET_BASEBG $rend 356=item $background = urxvt::GET_BASEBG $rend
229 357
234=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour) 362=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)
235 363
236Replace the foreground/background colour in the rendition mask with the 364Replace the foreground/background colour in the rendition mask with the
237specified one. 365specified one.
238 366
367=item $value = urxvt::GET_CUSTOM ($rend)
368
369Return the "custom" value: Every rendition has 5 bits for use by
370extensions. They can be set and changed as you like and are initially
371zero.
372
373=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)
374
375Change the custom value.
376
239=back 377=back
240 378
241=cut 379=cut
242 380
243package urxvt; 381package urxvt;
244 382
245use strict; 383use strict;
384use Scalar::Util ();
246 385
247our $term; 386our $TERM;
248our @HOOKNAME; 387our @HOOKNAME;
249our $LIBDIR; 388our $LIBDIR;
250 389
251BEGIN { 390BEGIN {
252 urxvt->bootstrap; 391 urxvt->bootstrap;
277 my $name = $HOOKNAME[$htype]; 416 my $name = $HOOKNAME[$htype];
278 417
279 my $ref = $pkg->can ("on_" . lc $name) 418 my $ref = $pkg->can ("on_" . lc $name)
280 or next; 419 or next;
281 420
282 $term->{_hook}[$htype]{$ref*1} = $ref; 421 $TERM->{_hook}[$htype]{$pkg} = $ref;
283 $hook_count[$htype]++ 422 $hook_count[$htype]++
284 or set_should_invoke $htype, 1; 423 or set_should_invoke $htype, 1;
285 } 424 }
286} 425}
287 426
309 448
310 $pkg 449 $pkg
311 } 450 }
312} 451}
313 452
453our $retval; # return value for urxvt
454
314# called by the rxvt core 455# called by the rxvt core
315sub invoke { 456sub invoke {
316 local $term = shift; 457 local $TERM = shift;
317 my $htype = shift; 458 my $htype = shift;
318 459
319 if ($htype == 0) { # INIT 460 if ($htype == 0) { # INIT
320 my @dirs = ((split /:/, $term->resource ("perl_lib")), "$LIBDIR/perl"); 461 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
321 462
322 for my $ext (split /:/, $term->resource ("perl_ext")) { 463 for my $ext (map { split /:/, $TERM->resource ("perl_ext_$_") } 1, 2) {
323 my @files = grep -f $_, map "$_/$ext", @dirs; 464 my @files = grep -f $_, map "$_/$ext", @dirs;
324 465
325 if (@files) { 466 if (@files) {
326 register_package script_package $files[0]; 467 register_package script_package $files[0];
327 } else { 468 } else {
328 warn "perl extension '$ext' not found in perl library search path\n"; 469 warn "perl extension '$ext' not found in perl library search path\n";
329 } 470 }
330 } 471 }
472 }
331 473
474 $retval = undef;
475
476 if (my $cb = $TERM->{_hook}[$htype]) {
477 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
478 if $verbosity >= 10;
479
480 keys %$cb;
481
482 while (my ($pkg, $cb) = each %$cb) {
483 $retval = $cb->(
484 $TERM->{_pkg}{$pkg} ||= do {
485 my $proxy = bless { }, urxvt::term::proxy::;
486 Scalar::Util::weaken ($proxy->{term} = $TERM);
487 $proxy
488 },
489 @_,
490 ) and last;
491 }
492 }
493
332 } elsif ($htype == 1) { # DESTROY 494 if ($htype == 1) { # DESTROY
495 # remove hooks if unused
333 if (my $hook = $term->{_hook}) { 496 if (my $hook = $TERM->{_hook}) {
334 for my $htype (0..$#$hook) { 497 for my $htype (0..$#$hook) {
335 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} } 498 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
336 or set_should_invoke $htype, 0; 499 or set_should_invoke $htype, 0;
337 } 500 }
338 } 501 }
502
503 # clear package objects
504 %$_ = () for values %{ $TERM->{_pkg} };
505
506 # clear package
507 %$TERM = ();
339 } 508 }
340 509
341 my $cb = $term->{_hook}[$htype] 510 $retval
342 or return;
343
344 verbose 10, "$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} 511}
353 512
354=back 513sub urxvt::term::proxy::AUTOLOAD {
514 $urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/
515 or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";
516
517 eval qq{
518 sub $urxvt::term::proxy::AUTOLOAD {
519 my \$proxy = shift;
520 \$proxy->{term}->$1 (\@_)
521 }
522 1
523 } or die "FATAL: unable to compile method forwarder: $@";
524
525 goto &$urxvt::term::proxy::AUTOLOAD;
526}
355 527
356=head2 The C<urxvt::term> Class 528=head2 The C<urxvt::term> Class
357 529
358=over 4 530=over 4
531
532=item $term->destroy
533
534Destroy the terminal object (close the window, free resources etc.).
359 535
360=item $value = $term->resource ($name[, $newval]) 536=item $value = $term->resource ($name[, $newval])
361 537
362Returns the current resource value associated with a given name and 538Returns the current resource value associated with a given name and
363optionally sets a new value. Setting values is most useful in the C<init> 539optionally sets a new value. Setting values is most useful in the C<init>
381 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 557 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
382 borderLess color cursorBlink cursorUnderline cutchars delete_key 558 borderLess color cursorBlink cursorUnderline cutchars delete_key
383 display_name embed ext_bwidth fade font geometry hold iconName 559 display_name embed ext_bwidth fade font geometry hold iconName
384 imFont imLocale inputMethod insecure int_bwidth intensityStyles 560 imFont imLocale inputMethod insecure int_bwidth intensityStyles
385 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 561 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier
386 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext 562 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2
387 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 563 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd
388 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 564 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating
389 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 565 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput
390 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 566 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle
391 shade term_name title transparent transparent_all tripleclickwords 567 shade term_name title transparent transparent_all tripleclickwords
397 my ($self, $name) = (shift, shift); 573 my ($self, $name) = (shift, shift);
398 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 574 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
399 goto &urxvt::term::_resource; 575 goto &urxvt::term::_resource;
400} 576}
401 577
578=item $rend = $term->rstyle ([$new_rstyle])
579
580Return and optionally change the current rendition. Text that is output by
581the terminal application will use this style.
582
583=item ($row, $col) = $term->screen_cur ([$row, $col])
584
585Return the current coordinates of the text cursor position and optionally
586set it (which is usually bad as applications don't expect that).
587
402=item ($row, $col) = $term->selection_mark ([$row, $col]) 588=item ($row, $col) = $term->selection_mark ([$row, $col])
403 589
404=item ($row, $col) = $term->selection_beg ([$row, $col]) 590=item ($row, $col) = $term->selection_beg ([$row, $col])
405 591
406=item ($row, $col) = $term->selection_end ([$row, $col]) 592=item ($row, $col) = $term->selection_end ([$row, $col])
415 601
416=item $oldtext = $term->selection ([$newtext]) 602=item $oldtext = $term->selection ([$newtext])
417 603
418Return the current selection text and optionally replace it by C<$newtext>. 604Return the current selection text and optionally replace it by C<$newtext>.
419 605
420=item $term->scr_overlay ($x, $y, $text) 606#=item $term->overlay ($x, $y, $text)
421 607#
422Create a simple multi-line overlay box. See the next method for details. 608#Create a simple multi-line overlay box. See the next method for details.
423 609#
424=cut 610#=cut
425 611#
426sub urxvt::term::scr_overlay { 612#sub urxvt::term::scr_overlay {
427 my ($self, $x, $y, $text) = @_; 613# my ($self, $x, $y, $text) = @_;
428 614#
429 my @lines = split /\n/, $text; 615# my @lines = split /\n/, $text;
430 616#
431 my $w = 0; 617# my $w = 0;
432 for (map $self->strwidth ($_), @lines) { 618# for (map $self->strwidth ($_), @lines) {
433 $w = $_ if $w < $_; 619# $w = $_ if $w < $_;
434 } 620# }
435 621#
436 $self->scr_overlay_new ($x, $y, $w, scalar @lines); 622# $self->scr_overlay_new ($x, $y, $w, scalar @lines);
437 $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines; 623# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;
438} 624#}
439 625
440=item $term->scr_overlay_new ($x, $y, $width, $height) 626=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
441 627
442Create a new (empty) overlay at the given position with the given 628Create a new (empty) overlay at the given position with the given
443width/height. A border will be put around the box. If either C<$x> or 629width/height. C<$rstyle> defines the initial rendition style
444C<$y> is negative, then this is counted from the right/bottom side, 630(default: C<OVERLAY_RSTYLE>).
445respectively.
446 631
447=item $term->scr_overlay_off 632If C<$border> is C<2> (default), then a decorative border will be put
633around the box.
448 634
449Switch the overlay off again. 635If either C<$x> or C<$y> is negative, then this is counted from the
636right/bottom side, respectively.
450 637
451=item $term->scr_overlay_set_char ($x, $y, $char, $rend = OVERLAY_RSTYLE) 638This method returns an urxvt::overlay object. The overlay will be visible
639as long as the perl object is referenced.
452 640
453Put a single character (specified numerically) at the given overlay 641The methods currently supported on C<urxvt::overlay> objects are:
454position.
455 642
643=over 4
644
456=item $term->scr_overlay_set ($x, $y, $text) 645=item $overlay->set ($x, $y, $text, $rend)
457 646
458Write a string at the given position into the overlay. 647Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts
648text in rxvt-unicode's special encoding and an array of rendition values
649at a specific position inside the overlay.
650
651=item $overlay->hide
652
653If visible, hide the overlay, but do not destroy it.
654
655=item $overlay->show
656
657If hidden, display the overlay again.
658
659=back
459 660
460=item $cellwidth = $term->strwidth $string 661=item $cellwidth = $term->strwidth $string
461 662
462Returns the number of screen-cells this string would need. Correctly 663Returns the number of screen-cells this string would need. Correctly
463accounts for wide and combining characters. 664accounts for wide and combining characters.
467Convert the given text string into the corresponding locale encoding. 668Convert the given text string into the corresponding locale encoding.
468 669
469=item $string = $term->locale_decode $octets 670=item $string = $term->locale_decode $octets
470 671
471Convert the given locale-encoded octets into a perl string. 672Convert the given locale-encoded octets into a perl string.
673
674=item $term->scr_add_lines ($string)
675
676Write the given text string to the screen, as if output by the application
677running inside the terminal. It may not contain command sequences (escape
678codes), but is free to use line feeds, carriage returns and tabs. The
679string is a normal text string, not in locale-dependent encoding.
680
681Normally its not a good idea to use this function, as programs might be
682confused by changes in cursor position or scrolling. Its useful inside a
683C<on_add_lines> hook, though.
684
685=item $term->cmd_parse ($octets)
686
687Similar to C<scr_add_lines>, but the argument must be in the
688locale-specific encoding of the terminal and can contain command sequences
689(escape codes) that will be interpreted.
472 690
473=item $term->tt_write ($octets) 691=item $term->tt_write ($octets)
474 692
475Write the octets given in C<$data> to the tty (i.e. as program input). To 693Write the octets given in C<$data> to the tty (i.e. as program input). To
476pass characters instead of octets, you should convert your strings first 694pass characters instead of octets, you should convert your strings first
477to the locale-specific encoding using C<< $term->locale_encode >>. 695to the locale-specific encoding using C<< $term->locale_encode >>.
478 696
697=item $window_width = $term->width
698
699=item $window_height = $term->height
700
701=item $font_width = $term->fwidth
702
703=item $font_height = $term->fheight
704
705=item $font_ascent = $term->fbase
706
479=item $nrow = $term->nrow 707=item $terminal_rows = $term->nrow
480 708
481=item $ncol = $term->ncol 709=item $terminal_columns = $term->ncol
482 710
483Return the number of rows/columns of the terminal window (i.e. as 711=item $has_focus = $term->focus
484specified by C<-geometry>, excluding any scrollback).
485 712
486=item $nsaved = $term->nsaved 713=item $is_mapped = $term->mapped
487 714
488Returns the number of lines in the scrollback buffer. 715=item $max_scrollback = $term->saveLines
716
717=item $nrow_plus_saveLines = $term->total_rows
718
719=item $lines_in_scrollback = $term->nsaved
720
721Return various integers describing terminal characteristics.
489 722
490=item $view_start = $term->view_start ([$newvalue]) 723=item $view_start = $term->view_start ([$newvalue])
491 724
492Returns the negative row number of the topmost line. Minimum value is 725Returns the negative row number of the topmost line. Minimum value is
493C<0>, which displays the normal terminal contents. Larger values scroll 726C<0>, which displays the normal terminal contents. Larger values scroll
504=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]]) 737=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
505 738
506Returns the text of the entire row with number C<$row_number>. Row C<0> 739Returns 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 740is 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 741terminal line. The scrollback buffer starts at line C<-1> and extends to
509line C<< -$term->nsaved >>. 742line C<< -$term->nsaved >>. Nothing will be returned if a nonexistent line
743is requested.
510 744
511If C<$new_text> is specified, it will replace characters in the current 745If C<$new_text> is specified, it will replace characters in the current
512line, starting at column C<$start_col> (default C<0>), which is useful 746line, starting at column C<$start_col> (default C<0>), which is useful
513to replace only parts of a line. The font index in the rendition will 747to replace only parts of a line. The font index in the rendition will
514automatically be updated. 748automatically be updated.
536 770
537See the section on RENDITION, above. 771See the section on RENDITION, above.
538 772
539=item $length = $term->ROW_l ($row_number[, $new_length]) 773=item $length = $term->ROW_l ($row_number[, $new_length])
540 774
541Returns the number of screen cells that are in use ("the line length"). If 775Returns 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 776length"). 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. 777line is joined with the following one.
544 778
779=item $bool = $term->is_longer ($row_number)
780
781Returns true if the row is part of a multiple-row logical "line" (i.e.
782joined with the following row), which means all characters are in use
783and it is continued on the next row (and possibly a continuation of the
784previous row(s)).
785
786=item $line = $term->line ($row_number)
787
788Create and return a new C<urxvt::line> object that stores information
789about the logical line that row C<$row_number> is part of. It supports the
790following methods:
791
792=over 4
793
794=item $text = $line->t ([$new_text])
795
796Returns or replaces the full text of the line, similar to C<ROW_t>
797
798=item $rend = $line->r ([$new_rend])
799
800Returns or replaces the full rendition array of the line, similar to C<ROW_r>
801
802=item $length = $line->l
803
804Returns the length of the line in cells, similar to C<ROW_l>.
805
806=item $rownum = $line->beg
807
808=item $rownum = $line->end
809
810Return the row number of the first/last row of the line, respectively.
811
812=item $offset = $line->offset_of ($row, $col)
813
814Returns the character offset of the given row|col pair within the logical
815line.
816
817=item ($row, $col) = $line->coord_of ($offset)
818
819Translates a string offset into terminal coordinates again.
820
821=back
822
823=cut
824
825sub urxvt::term::line {
826 my ($self, $row) = @_;
827
828 my $maxrow = $self->nrow - 1;
829
830 my ($beg, $end) = ($row, $row);
831
832 --$beg while $self->ROW_is_longer ($beg - 1);
833 ++$end while $self->ROW_is_longer ($end) && $end < $maxrow;
834
835 bless {
836 term => $self,
837 beg => $beg,
838 end => $end,
839 ncol => $self->ncol,
840 len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),
841 }, urxvt::line::
842}
843
844sub urxvt::line::t {
845 my ($self) = @_;
846
847 if (@_ > 1)
848 {
849 $self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
850 for $self->{beg} .. $self->{end};
851 }
852
853 defined wantarray &&
854 substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),
855 0, $self->{len}
856}
857
858sub urxvt::line::r {
859 my ($self) = @_;
860
861 if (@_ > 1)
862 {
863 $self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
864 for $self->{beg} .. $self->{end};
865 }
866
867 if (defined wantarray) {
868 my $rend = [
869 map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}
870 ];
871 $#$rend = $self->{len} - 1;
872 return $rend;
873 }
874
875 ()
876}
877
878sub urxvt::line::beg { $_[0]{beg} }
879sub urxvt::line::end { $_[0]{end} }
880sub urxvt::line::l { $_[0]{len} }
881
882sub urxvt::line::offset_of {
883 my ($self, $row, $col) = @_;
884
885 ($row - $self->{beg}) * $self->{ncol} + $col
886}
887
888sub urxvt::line::coord_of {
889 my ($self, $offset) = @_;
890
891 use integer;
892
893 (
894 $offset / $self->{ncol} + $self->{beg},
895 $offset % $self->{ncol}
896 )
897}
898
899=item ($row, $col) = $line->coord_of ($offset)
545=item $text = $term->special_encode $string 900=item $text = $term->special_encode $string
546 901
547Converts a perl string into the special encoding used by rxvt-unicode, 902Converts a perl string into the special encoding used by rxvt-unicode,
548where one character corresponds to one screen cell. See 903where one character corresponds to one screen cell. See
549C<< $term->ROW_t >> for details. 904C<< $term->ROW_t >> for details.
558=head2 The C<urxvt::timer> Class 913=head2 The C<urxvt::timer> Class
559 914
560This class implements timer watchers/events. Time is represented as a 915This class implements timer watchers/events. Time is represented as a
561fractional number of seconds since the epoch. Example: 916fractional number of seconds since the epoch. Example:
562 917
563 # create a digital clock display in upper right corner 918 $term->{overlay} = $term->overlay (-1, 0, 8, 1, urxvt::OVERLAY_RSTYLE, 0);
564 $term->{timer} = urxvt::timer 919 $term->{timer} = urxvt::timer
565 ->new 920 ->new
566 ->start (urxvt::NOW) 921 ->interval (1)
567 ->cb (sub { 922 ->cb (sub {
568 my ($timer) = @_;
569 my $time = $timer->at;
570 $timer->start ($time + 1);
571 $self->scr_overlay (-1, 0, 923 $term->{overlay}->set (0, 0,
572 POSIX::strftime "%H:%M:%S", localtime $time); 924 sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
573 }); 925 });
574 926
575=over 4 927=over 4
576 928
577=item $timer = new urxvt::timer 929=item $timer = new urxvt::timer
578 930
579Create a new timer object in stopped state. 931Create a new timer object in started state. It is scheduled to fire
932immediately.
580 933
581=item $timer = $timer->cb (sub { my ($timer) = @_; ... }) 934=item $timer = $timer->cb (sub { my ($timer) = @_; ... })
582 935
583Set the callback to be called when the timer triggers. 936Set the callback to be called when the timer triggers.
584 937
587Return the time this watcher will fire next. 940Return the time this watcher will fire next.
588 941
589=item $timer = $timer->set ($tstamp) 942=item $timer = $timer->set ($tstamp)
590 943
591Set the time the event is generated to $tstamp. 944Set the time the event is generated to $tstamp.
945
946=item $timer = $timer->interval ($interval)
947
948Normally (and when C<$interval> is C<0>), the timer will automatically
949stop after it has fired once. If C<$interval> is non-zero, then the timer
950is automatically rescheduled at the given intervals.
592 951
593=item $timer = $timer->start 952=item $timer = $timer->start
594 953
595Start the timer. 954Start the timer.
596 955
659This variable controls the verbosity level of the perl extension. Higher 1018This variable controls the verbosity level of the perl extension. Higher
660numbers indicate more verbose output. 1019numbers indicate more verbose output.
661 1020
662=over 4 1021=over 4
663 1022
664=item 0 - only fatal messages 1023=item =0 - only fatal messages
665 1024
666=item 3 - script loading and management 1025=item =3 - script loading and management
667 1026
668=item 10 - all events received 1027=item =10 - all events received
669 1028
670=back 1029=back
671 1030
672=head1 AUTHOR 1031=head1 AUTHOR
673 1032

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