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Revision 1.47 by root, Sat Jan 7 21:22:02 2006 UTC vs.
Revision 1.88 by root, Thu Jan 12 12:05:28 2006 UTC

26thus must be encoded as UTF-8. 26thus must be encoded as UTF-8.
27 27
28Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where 28Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where
29scripts will be shared (but not enabled) for all terminals. 29scripts will be shared (but not enabled) for all terminals.
30 30
31=head2 Prepackaged Extensions 31=head1 PREPACKAGED EXTENSIONS
32 32
33This section describes the extensiosn delivered with this version. You can 33This section describes the extensions delivered with this release. You can
34find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>. 34find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.
35 35
36You can activate them like this: 36You can activate them like this:
37 37
38 @@RXVT_NAME@@ -pe <extensionname> 38 @@RXVT_NAME@@ -pe <extensionname>
39 39
40=over 4 40=over 4
41 41
42=item selection 42=item selection (enabled by default)
43 43
44Intelligent selection. This extension tries to be more intelligent when 44(More) intelligent selection. This extension tries to be more intelligent
45the user extends selections (double-click). Right now, it tries to select 45when the user extends selections (double-click and further clicks). Right
46urls and complete shell-quoted arguments, which is very convenient, too, 46now, it tries to select words, urls and complete shell-quoted
47if your F<ls> supports C<--quoting-style=shell>. 47arguments, which is very convenient, too, if your F<ls> supports
48C<--quoting-style=shell>.
48 49
49It also offers the following bindable event: 50A double-click usually selects the word under the cursor, further clicks
51will enlarge the selection.
52
53The selection works by trying to match a number of regexes and displaying
54them in increasing order of length. You can add your own regexes by
55specifying resources of the form:
56
57 URxvt.selection.pattern-0: perl-regex
58 URxvt.selection.pattern-1: perl-regex
59 ...
60
61The index number (0, 1...) must not have any holes, and each regex must
62contain at least one pair of capturing parentheses, which will be used for
63the match. For example, the followign adds a regex that matches everything
64between two vertical bars:
65
66 URxvt.selection.pattern-0: \\|([^|]+)\\|
67
68You can look at the source of the selection extension to see more
69interesting uses, such as parsing a line from beginning to end.
70
71This extension also offers the following bindable keyboard command:
50 72
51=over 4 73=over 4
52 74
53=item rot13 75=item rot13
54 76
56 78
57 URxvt.keysym.C-M-r: perl:selection:rot13 79 URxvt.keysym.C-M-r: perl:selection:rot13
58 80
59=back 81=back
60 82
61=item digital-clock 83=item option-popup (enabled by default)
62 84
63Displays a digital clock using the built-in overlay. 85Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at
86runtime.
87
88=item selection-popup (enabled by default)
89
90Binds a popup menu to Ctrl-Button3 that lets you convert the selection
91text into various other formats/action (such as uri unescaping, perl
92evalution, web-browser starting etc.), depending on content.
93
94=item searchable-scrollback<hotkey> (enabled by default)
95
96Adds regex search functionality to the scrollback buffer, triggered
97by a hotkey (default: C<M-s>). While in search mode, normal terminal
98input/output is suspended and a regex is displayed at the bottom of the
99screen.
100
101Inputting characters appends them to the regex and continues incremental
102search. C<BackSpace> removes a character from the regex, C<Up> and C<Down>
103search upwards/downwards in the scrollback buffer, C<End> jumps to the
104bottom. C<Escape> leaves search mode and returns to the point where search
105was started, while C<Enter> or C<Return> stay at the current position and
106additionally stores the first match in the current line into the primary
107selection.
108
109=item selection-autotransform
110
111This selection allows you to do automatic transforms on a selection
112whenever a selection is made.
113
114It works by specifying perl snippets (most useful is a single C<s///>
115operator) that modify C<$_> as resources:
116
117 URxvt.selection-autotransform.0: transform
118 URxvt.selection-autotransform.1: transform
119 ...
120
121For example, the following will transform selections of the form
122C<word:number> into C<vi +$number $word>:
123
124 URxvt.selection-autotransform.0: s/^(S+):(d+):?$/vi +$2 $1\\x0d/
125
126And this example matches the same,but replaces it with vi-commands you can
127paste directory into your (vi :) editor:
128
129 URxvt.selection-autotransform.0: s/^(S+):(d+):?$/\\x1b:e $1\\x0d:$2\\x0d/
64 130
65=item mark-urls 131=item mark-urls
66 132
67Uses per-line display filtering (C<on_line_update>) to underline urls. 133Uses per-line display filtering (C<on_line_update>) to underline urls and
134make them clickable. When middle-clicked, the program specified in the
135resource C<urlLauncher> (default C<x-www-browser>) will be started with
136the URL as first argument.
68 137
69=item block-graphics-to-ascii 138=item block-graphics-to-ascii
70 139
71A not very useful example of filtering all text output to the terminal, 140A not very useful example of filtering all text output to the terminal,
72by replacing all line-drawing characters (U+2500 .. U+259F) by a 141by replacing all line-drawing characters (U+2500 .. U+259F) by a
73similar-looking ascii character. 142similar-looking ascii character.
74 143
144=item digital-clock
145
146Displays a digital clock using the built-in overlay.
147
75=item example-refresh-hooks 148=item example-refresh-hooks
76 149
77Displays a very simple digital clock in the upper right corner of the 150Displays a very simple digital clock in the upper right corner of the
78window. Illustrates overwriting the refresh callbacks to create your own 151window. Illustrates overwriting the refresh callbacks to create your own
79overlays or changes. 152overlays or changes.
80 153
81=back 154=back
155
156=head1 API DOCUMENTATION
82 157
83=head2 General API Considerations 158=head2 General API Considerations
84 159
85All objects (such as terminals, time watchers etc.) are typical 160All objects (such as terminals, time watchers etc.) are typical
86reference-to-hash objects. The hash can be used to store anything you 161reference-to-hash objects. The hash can be used to store anything you
99=over 4 174=over 4
100 175
101=item $text 176=item $text
102 177
103Rxvt-unicodes special way of encoding text, where one "unicode" character 178Rxvt-unicodes special way of encoding text, where one "unicode" character
104always represents one screen cell. See L<row_t> for a discussion of this format. 179always represents one screen cell. See L<ROW_t> for a discussion of this format.
105 180
106=item $string 181=item $string
107 182
108A perl text string, with an emphasis on I<text>. It can store all unicode 183A perl text string, with an emphasis on I<text>. It can store all unicode
109characters and is to be distinguished with text encoded in a specific 184characters and is to be distinguished with text encoded in a specific
114Either binary data or - more common - a text string encoded in a 189Either binary data or - more common - a text string encoded in a
115locale-specific way. 190locale-specific way.
116 191
117=back 192=back
118 193
194=head2 Extension Objects
195
196Very perl extension is a perl class. A separate perl object is created
197for each terminal and each extension and passed as the first parameter to
198hooks. So extensions can use their C<$self> object without having to think
199about other extensions, with the exception of methods and members that
200begin with an underscore character C<_>: these are reserved for internal
201use.
202
203Although it isn't a C<urxvt::term> object, you can call all methods of the
204C<urxvt::term> class on this object.
205
206It has the following methods and data members:
207
208=over 4
209
210=item $urxvt_term = $self->{term}
211
212Returns the C<urxvt::term> object associated with this instance of the
213extension. This member I<must not> be changed in any way.
214
215=item $self->enable ($hook_name => $cb, [$hook_name => $cb..])
216
217Dynamically enable the given hooks (named without the C<on_> prefix) for
218this extension, replacing any previous hook. This is useful when you want
219to overwrite time-critical hooks only temporarily.
220
221=item $self->disable ($hook_name[, $hook_name..])
222
223Dynamically disable the given hooks.
224
225=back
226
119=head2 Hooks 227=head2 Hooks
120 228
121The following subroutines can be declared in extension files, and will be 229The following subroutines can be declared in extension files, and will be
122called whenever the relevant event happens. 230called whenever the relevant event happens.
123 231
124The first argument passed to them is an object private to each terminal 232The first argument passed to them is an extension oject as described in
125and extension package. You can call all C<urxvt::term> methods on it, but 233the in the C<Extension Objects> section.
126its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
127object that is shared between all packages is stored in the C<term>
128member. It is, however, blessed intot he package of the extension script,
129so for all practical purposes you can treat an extension script as a class.
130 234
131All of them must return a boolean value. If it is true, then the event 235B<All> of these hooks must return a boolean value. If it is true, then the
132counts as being I<consumed>, and the invocation of other hooks is skipped, 236event counts as being I<consumed>, and the invocation of other hooks is
133and the relevant action might not be carried out by the C++ code. 237skipped, and the relevant action might not be carried out by the C++ code.
134 238
135When in doubt, return a false value (preferably C<()>). 239I<< When in doubt, return a false value (preferably C<()>). >>
136 240
137=over 4 241=over 4
138 242
139=item on_init $term 243=item on_init $term
140 244
175=item on_sel_extend $term 279=item on_sel_extend $term
176 280
177Called whenever the user tries to extend the selection (e.g. with a double 281Called whenever the user tries to extend the selection (e.g. with a double
178click) and is either supposed to return false (normal operation), or 282click) and is either supposed to return false (normal operation), or
179should extend the selection itelf and return true to suppress the built-in 283should extend the selection itelf and return true to suppress the built-in
180processing. 284processing. This can happen multiple times, as long as the callback
285returns true, it will be called on every further click by the user and is
286supposed to enlarge the selection more and more, if possible.
181 287
182See the F<selection> example extension. 288See the F<selection> example extension.
183 289
184=item on_view_change $term, $offset 290=item on_view_change $term, $offset
185 291
194than the scroll back buffer or the terminal. 300than the scroll back buffer or the terminal.
195 301
196It is called before lines are scrolled out (so rows 0 .. min ($lines - 1, 302It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
197$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total 303$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
198number of lines that will be in the scrollback buffer. 304number of lines that will be in the scrollback buffer.
199
200=item on_tty_activity $term *NYI*
201
202Called whenever the program(s) running in the urxvt window send output.
203 305
204=item on_osc_seq $term, $string 306=item on_osc_seq $term, $string
205 307
206Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC = 308Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
207operating system command) is processed. Cursor position and other state 309operating system command) is processed. Cursor position and other state
220can filter/change and output the text yourself by returning a true value 322can filter/change and output the text yourself by returning a true value
221and calling C<< $term->scr_add_lines >> yourself. Please note that this 323and calling C<< $term->scr_add_lines >> yourself. Please note that this
222might be very slow, however, as your hook is called for B<all> text being 324might be very slow, however, as your hook is called for B<all> text being
223output. 325output.
224 326
327=item on_tt_write $term, $octets
328
329Called whenever some data is written to the tty/pty and can be used to
330suppress or filter tty input.
331
225=item on_line_update $term, $row 332=item on_line_update $term, $row
226 333
227Called whenever a line was updated or changed. Can be used to filter 334Called whenever a line was updated or changed. Can be used to filter
228screen output (e.g. underline urls or other useless stuff). Only lines 335screen output (e.g. underline urls or other useless stuff). Only lines
229that are being shown will be filtered, and, due to performance reasons, 336that are being shown will be filtered, and, due to performance reasons,
261=item on_focus_out $term 368=item on_focus_out $term
262 369
263Called wheneever the window loses keyboard focus, before rxvt-unicode does 370Called wheneever the window loses keyboard focus, before rxvt-unicode does
264focus out processing. 371focus out processing.
265 372
266=item on_key_press $term, $event, $octets 373=item on_key_press $term, $event, $keysym, $octets
267 374
268=item on_key_release $term, $event 375=item on_key_release $term, $event, $keysym
269 376
270=item on_button_press $term, $event 377=item on_button_press $term, $event
271 378
272=item on_button_release $term, $event 379=item on_button_release $term, $event
273 380
289 396
290subwindow. 397subwindow.
291 398
292=back 399=back
293 400
401=cut
402
403package urxvt;
404
405use utf8;
406use strict;
407use Carp ();
408use Scalar::Util ();
409use List::Util ();
410
411our $VERSION = 1;
412our $TERM;
413our @HOOKNAME;
414our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
415our %OPTION;
416
417our $LIBDIR;
418our $RESNAME;
419our $RESCLASS;
420our $RXVTNAME;
421
294=head2 Variables in the C<urxvt> Package 422=head2 Variables in the C<urxvt> Package
295 423
296=over 4 424=over 4
425
426=item $urxvt::LIBDIR
427
428The rxvt-unicode library directory, where, among other things, the perl
429modules and scripts are stored.
430
431=item $urxvt::RESCLASS, $urxvt::RESCLASS
432
433The resource class and name rxvt-unicode uses to look up X resources.
434
435=item $urxvt::RXVTNAME
436
437The basename of the installed binaries, usually C<urxvt>.
297 438
298=item $urxvt::TERM 439=item $urxvt::TERM
299 440
300The current terminal. This variable stores the current C<urxvt::term> 441The current terminal. This variable stores the current C<urxvt::term>
301object, whenever a callback/hook is executing. 442object, whenever a callback/hook is executing.
303=back 444=back
304 445
305=head2 Functions in the C<urxvt> Package 446=head2 Functions in the C<urxvt> Package
306 447
307=over 4 448=over 4
308
309=item $term = new urxvt [arg...]
310
311Creates a new terminal, very similar as if you had started it with
312C<system $binfile, arg...>. Croaks (and probably outputs an error message)
313if the new instance couldn't be created. Returns C<undef> if the new
314instance didn't initialise perl, and the terminal object otherwise. The
315C<init> and C<start> hooks will be called during the call.
316 449
317=item urxvt::fatal $errormessage 450=item urxvt::fatal $errormessage
318 451
319Fatally aborts execution with the given error message. Avoid at all 452Fatally aborts execution with the given error message. Avoid at all
320costs! The only time this is acceptable is when the terminal process 453costs! The only time this is acceptable is when the terminal process
327that calls this function. 460that calls this function.
328 461
329Using this function has the advantage that its output ends up in the 462Using this function has the advantage that its output ends up in the
330correct place, e.g. on stderr of the connecting urxvtc client. 463correct place, e.g. on stderr of the connecting urxvtc client.
331 464
465Messages have a size limit of 1023 bytes currently.
466
467=item $is_safe = urxvt::safe
468
469Returns true when it is safe to do potentially unsafe things, such as
470evaluating perl code specified by the user. This is true when urxvt was
471started setuid or setgid.
472
332=item $time = urxvt::NOW 473=item $time = urxvt::NOW
333 474
334Returns the "current time" (as per the event loop). 475Returns the "current time" (as per the event loop).
335 476
336=item urxvt::CurrentTime 477=item urxvt::CurrentTime
337 478
338=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, 479=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
339Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, 480Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
340Button4Mask, Button5Mask, AnyModifier 481Button4Mask, Button5Mask, AnyModifier
341 482
342Various constants for use in X events. 483Various constants for use in X calls and event processing.
343 484
344=back 485=back
345 486
346=head2 RENDITION 487=head2 RENDITION
347 488
374 515
375=item $background = urxvt::GET_BASEBG $rend 516=item $background = urxvt::GET_BASEBG $rend
376 517
377Return the foreground/background colour index, respectively. 518Return the foreground/background colour index, respectively.
378 519
379=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour) 520=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
380 521
381=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour) 522=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
382 523
383Replace the foreground/background colour in the rendition mask with the 524Replace the foreground/background colour in the rendition mask with the
384specified one. 525specified one.
385 526
386=item $value = urxvt::GET_CUSTOM ($rend) 527=item $value = urxvt::GET_CUSTOM $rend
387 528
388Return the "custom" value: Every rendition has 5 bits for use by 529Return the "custom" value: Every rendition has 5 bits for use by
389extensions. They can be set and changed as you like and are initially 530extensions. They can be set and changed as you like and are initially
390zero. 531zero.
391 532
392=item $rend = urxvt::SET_CUSTOM ($rend, $new_value) 533=item $rend = urxvt::SET_CUSTOM $rend, $new_value
393 534
394Change the custom value. 535Change the custom value.
395 536
396=back 537=back
397 538
398=cut 539=cut
399
400package urxvt;
401
402use strict;
403use Scalar::Util ();
404
405our $TERM;
406our @HOOKNAME;
407our $LIBDIR;
408 540
409BEGIN { 541BEGIN {
410 urxvt->bootstrap; 542 urxvt->bootstrap;
411 543
412 # overwrite perl's warn 544 # overwrite perl's warn
414 my $msg = join "", @_; 546 my $msg = join "", @_;
415 $msg .= "\n" 547 $msg .= "\n"
416 unless $msg =~ /\n$/; 548 unless $msg =~ /\n$/;
417 urxvt::warn ($msg); 549 urxvt::warn ($msg);
418 }; 550 };
551
552 # %ENV is the original startup environment
553 delete $ENV{IFS};
554 delete $ENV{CDPATH};
555 delete $ENV{BASH_ENV};
556 $ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
419} 557}
420 558
421my @hook_count; 559my @hook_count;
422my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 560my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
423 561
424sub verbose { 562sub verbose {
425 my ($level, $msg) = @_; 563 my ($level, $msg) = @_;
426 warn "$msg\n" if $level <= $verbosity; 564 warn "$msg\n" if $level <= $verbosity;
427} 565}
428 566
429# find on_xxx subs in the package and register them
430# as hooks
431sub register_package($) {
432 my ($pkg) = @_;
433
434 for my $htype (0.. $#HOOKNAME) {
435 my $name = $HOOKNAME[$htype];
436
437 my $ref = $pkg->can ("on_" . lc $name)
438 or next;
439
440 $TERM->{_hook}[$htype]{$pkg} = $ref;
441 $hook_count[$htype]++
442 or set_should_invoke $htype, 1;
443 }
444}
445
446my $extension_pkg = "extension0000"; 567my $extension_pkg = "extension0000";
447my %extension_pkg; 568my %extension_pkg;
448 569
449# load a single script into its own package, once only 570# load a single script into its own package, once only
450sub extension_package($) { 571sub extension_package($) {
456 verbose 3, "loading extension '$path' into package '$pkg'"; 577 verbose 3, "loading extension '$path' into package '$pkg'";
457 578
458 open my $fh, "<:raw", $path 579 open my $fh, "<:raw", $path
459 or die "$path: $!"; 580 or die "$path: $!";
460 581
582 my $source = untaint
461 my $source = "package $pkg; use strict; use utf8;\n" 583 "package $pkg; use strict; use utf8;\n"
462 . "use base urxvt::term::proxy::;\n" 584 . "use base urxvt::term::extension::;\n"
463 . "#line 1 \"$path\"\n{\n" 585 . "#line 1 \"$path\"\n{\n"
464 . (do { local $/; <$fh> }) 586 . (do { local $/; <$fh> })
465 . "\n};\n1"; 587 . "\n};\n1";
466 588
589 eval $source
467 eval $source or die "$path: $@"; 590 or die "$path: $@";
468 591
469 $pkg 592 $pkg
470 } 593 }
471} 594}
472 595
477 local $TERM = shift; 600 local $TERM = shift;
478 my $htype = shift; 601 my $htype = shift;
479 602
480 if ($htype == 0) { # INIT 603 if ($htype == 0) { # INIT
481 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 604 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
605
606 my %ext_arg;
482 607
483 for my $ext (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 608 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
609 if ($_ eq "default") {
610 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback);
611 } elsif (/^-(.*)$/) {
612 delete $ext_arg{$1};
613 } elsif (/^([^<]+)<(.*)>$/) {
614 push @{ $ext_arg{$1} }, $2;
615 } else {
616 $ext_arg{$_} ||= [];
617 }
618 }
619
620 while (my ($ext, $argv) = each %ext_arg) {
484 my @files = grep -f $_, map "$_/$ext", @dirs; 621 my @files = grep -f $_, map "$_/$ext", @dirs;
485 622
486 if (@files) { 623 if (@files) {
487 register_package extension_package $files[0]; 624 $TERM->register_package (extension_package $files[0], $argv);
488 } else { 625 } else {
489 warn "perl extension '$ext' not found in perl library search path\n"; 626 warn "perl extension '$ext' not found in perl library search path\n";
490 } 627 }
491 } 628 }
629
630 eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval");
631 warn $@ if $@;
492 } 632 }
493 633
494 $retval = undef; 634 $retval = undef;
495 635
496 if (my $cb = $TERM->{_hook}[$htype]) { 636 if (my $cb = $TERM->{_hook}[$htype]) {
498 if $verbosity >= 10; 638 if $verbosity >= 10;
499 639
500 keys %$cb; 640 keys %$cb;
501 641
502 while (my ($pkg, $cb) = each %$cb) { 642 while (my ($pkg, $cb) = each %$cb) {
503 eval { 643 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) }
504 $retval = $cb->(
505 $TERM->{_pkg}{$pkg} ||= do {
506 my $proxy = bless { }, $pkg;
507 Scalar::Util::weaken ($proxy->{term} = $TERM);
508 $proxy
509 },
510 @_,
511 ) and last; 644 and last;
645
646 if ($@) {
647 $TERM->ungrab; # better to lose the grab than the session
648 warn $@;
512 }; 649 }
513 warn $@ if $@;#d#
514 } 650 }
651
652 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
653 if $verbosity >= 11;
515 } 654 }
516 655
517 if ($htype == 1) { # DESTROY 656 if ($htype == 1) { # DESTROY
518 # remove hooks if unused
519 if (my $hook = $TERM->{_hook}) { 657 if (my $hook = delete $TERM->{_hook}) {
520 for my $htype (0..$#$hook) { 658 for my $htype (0..$#$hook) {
521 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} } 659 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
522 or set_should_invoke $htype, 0; 660 or set_should_invoke $htype, 0;
523 } 661 }
524 } 662 }
531 } 669 }
532 670
533 $retval 671 $retval
534} 672}
535 673
536sub urxvt::term::proxy::AUTOLOAD { 674sub exec_async(@) {
537 $urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/ 675 my $pid = fork;
676
677 return
678 if !defined $pid or $pid;
679
680 %ENV = %{ $TERM->env };
681
682 exec @_;
683 _exit 255;
684}
685
686# urxvt::term::extension
687
688package urxvt::term::extension;
689
690sub enable {
691 my ($self, %hook) = @_;
692 my $pkg = $self->{_pkg};
693
694 while (my ($name, $cb) = each %hook) {
695 my $htype = $HOOKTYPE{uc $name};
696 defined $htype
697 or Carp::croak "unsupported hook type '$name'";
698
699 unless (exists $self->{term}{_hook}[$htype]{$pkg}) {
700 $hook_count[$htype]++
701 or urxvt::set_should_invoke $htype, 1;
702 }
703
704 $self->{term}{_hook}[$htype]{$pkg} = $cb;
705 }
706}
707
708sub disable {
709 my ($self, @hook) = @_;
710 my $pkg = $self->{_pkg};
711
712 for my $name (@hook) {
713 my $htype = $HOOKTYPE{uc $name};
714 defined $htype
715 or Carp::croak "unsupported hook type '$name'";
716
717 if (delete $self->{term}{_hook}[$htype]{$pkg}) {
718 --$hook_count[$htype]
719 or urxvt::set_should_invoke $htype, 0;
720 }
721 }
722}
723
724our $AUTOLOAD;
725
726sub AUTOLOAD {
727 $AUTOLOAD =~ /:([^:]+)$/
538 or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable"; 728 or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
539 729
540 eval qq{ 730 eval qq{
541 sub $urxvt::term::proxy::AUTOLOAD { 731 sub $AUTOLOAD {
542 my \$proxy = shift; 732 my \$proxy = shift;
543 \$proxy->{term}->$1 (\@_) 733 \$proxy->{term}->$1 (\@_)
544 } 734 }
545 1 735 1
546 } or die "FATAL: unable to compile method forwarder: $@"; 736 } or die "FATAL: unable to compile method forwarder: $@";
547 737
548 goto &$urxvt::term::proxy::AUTOLOAD; 738 goto &$AUTOLOAD;
549} 739}
740
741sub DESTROY {
742 # nop
743}
744
745# urxvt::destroy_hook
550 746
551sub urxvt::destroy_hook::DESTROY { 747sub urxvt::destroy_hook::DESTROY {
552 ${$_[0]}->(); 748 ${$_[0]}->();
553} 749}
554 750
555sub urxvt::destroy_hook(&) { 751sub urxvt::destroy_hook(&) {
556 bless \shift, urxvt::destroy_hook:: 752 bless \shift, urxvt::destroy_hook::
557} 753}
558 754
755package urxvt::anyevent;
756
757=head2 The C<urxvt::anyevent> Class
758
759The sole purpose of this class is to deliver an interface to the
760C<AnyEvent> module - any module using it will work inside urxvt without
761further programming. The only exception is that you cannot wait on
762condition variables, but non-blocking condvar use is ok. What this means
763is that you cannot use blocking APIs, but the non-blocking variant should
764work.
765
766=cut
767
768our $VERSION = 1;
769
770$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
771push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
772
773sub timer {
774 my ($class, %arg) = @_;
775
776 my $cb = $arg{cb};
777
778 urxvt::timer
779 ->new
780 ->start (urxvt::NOW + $arg{after})
781 ->cb (sub {
782 $_[0]->stop; # need to cancel manually
783 $cb->();
784 })
785}
786
787sub io {
788 my ($class, %arg) = @_;
789
790 my $cb = $arg{cb};
791
792 bless [$arg{fh}, urxvt::iow
793 ->new
794 ->fd (fileno $arg{fh})
795 ->events (($arg{poll} =~ /r/ ? 1 : 0)
796 | ($arg{poll} =~ /w/ ? 2 : 0))
797 ->start
798 ->cb (sub {
799 $cb->(($_[1] & 1 ? 'r' : '')
800 . ($_[1] & 2 ? 'w' : ''));
801 })],
802 urxvt::anyevent::
803}
804
805sub DESTROY {
806 $_[0][1]->stop;
807}
808
809sub condvar {
810 bless \my $flag, urxvt::anyevent::condvar::
811}
812
813sub urxvt::anyevent::condvar::broadcast {
814 ${$_[0]}++;
815}
816
817sub urxvt::anyevent::condvar::wait {
818 unless (${$_[0]}) {
819 Carp::croak "AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API";
820 }
821}
822
823package urxvt::term;
824
559=head2 The C<urxvt::term> Class 825=head2 The C<urxvt::term> Class
560 826
561=over 4 827=over 4
562 828
829=cut
830
831# find on_xxx subs in the package and register them
832# as hooks
833sub register_package {
834 my ($self, $pkg, $argv) = @_;
835
836 my $proxy = bless {
837 _pkg => $pkg,
838 argv => $argv,
839 }, $pkg;
840 Scalar::Util::weaken ($proxy->{term} = $self);
841
842 $self->{_pkg}{$pkg} = $proxy;
843
844 for my $name (@HOOKNAME) {
845 if (my $ref = $pkg->can ("on_" . lc $name)) {
846 $proxy->enable ($name => $ref);
847 }
848 }
849}
850
851=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
852
853Creates a new terminal, very similar as if you had started it with system
854C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
855hash which defines the environment of the new terminal.
856
857Croaks (and probably outputs an error message) if the new instance
858couldn't be created. Returns C<undef> if the new instance didn't
859initialise perl, and the terminal object otherwise. The C<init> and
860C<start> hooks will be called during this call.
861
862=cut
863
864sub new {
865 my ($class, $env, @args) = @_;
866
867 _new ([ map "$_=$env->{$_}", keys %$env ], @args);
868}
869
563=item $term->destroy 870=item $term->destroy
564 871
565Destroy the terminal object (close the window, free resources etc.). 872Destroy the terminal object (close the window, free resources
873etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
874watchers (timers, io watchers) are still active.
875
876=item $isset = $term->option ($optval[, $set])
877
878Returns true if the option specified by C<$optval> is enabled, and
879optionally change it. All option values are stored by name in the hash
880C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
881
882Here is a a likely non-exhaustive list of option names, please see the
883source file F</src/optinc.h> to see the actual list:
884
885 borderLess console cursorBlink cursorUnderline hold iconic insecure
886 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
887 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating
888 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer
889 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent
890 tripleclickwords utmpInhibit visualBell
566 891
567=item $value = $term->resource ($name[, $newval]) 892=item $value = $term->resource ($name[, $newval])
568 893
569Returns the current resource value associated with a given name and 894Returns the current resource value associated with a given name and
570optionally sets a new value. Setting values is most useful in the C<init> 895optionally sets a new value. Setting values is most useful in the C<init>
580 905
581Please note that resource strings will currently only be freed when the 906Please note that resource strings will currently only be freed when the
582terminal is destroyed, so changing options frequently will eat memory. 907terminal is destroyed, so changing options frequently will eat memory.
583 908
584Here is a a likely non-exhaustive list of resource names, not all of which 909Here is a a likely non-exhaustive list of resource names, not all of which
585are supported in every build, please see the source to see the actual 910are supported in every build, please see the source file F</src/rsinc.h>
586list: 911to see the actual list:
587 912
588 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 913 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
589 borderLess color cursorBlink cursorUnderline cutchars delete_key 914 borderLess color cursorBlink cursorUnderline cutchars delete_key
590 display_name embed ext_bwidth fade font geometry hold iconName 915 display_name embed ext_bwidth fade font geometry hold iconName
591 imFont imLocale inputMethod insecure int_bwidth intensityStyles 916 imFont imLocale inputMethod insecure int_bwidth intensityStyles
598 shade term_name title transparent transparent_all tripleclickwords 923 shade term_name title transparent transparent_all tripleclickwords
599 utmpInhibit visualBell 924 utmpInhibit visualBell
600 925
601=cut 926=cut
602 927
603sub urxvt::term::resource($$;$) { 928sub resource($$;$) {
604 my ($self, $name) = (shift, shift); 929 my ($self, $name) = (shift, shift);
605 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 930 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
606 &urxvt::term::_resource 931 &urxvt::term::_resource
607} 932}
608 933
934=item $value = $term->x_resource ($pattern)
935
936Returns the X-Resource for the given pattern, excluding the program or
937class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
938same value as used by this instance of rxvt-unicode. Returns C<undef> if no
939resource with that pattern exists.
940
941This method should only be called during the C<on_start> hook, as there is
942only one resource database per display, and later invocations might return
943the wrong resources.
944
945=item $success = $term->parse_keysym ($keysym_spec, $command_string)
946
947Adds a keymap translation exactly as specified via a resource. See the
948C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
949
609=item $rend = $term->rstyle ([$new_rstyle]) 950=item $rend = $term->rstyle ([$new_rstyle])
610 951
611Return and optionally change the current rendition. Text that is output by 952Return and optionally change the current rendition. Text that is output by
612the terminal application will use this style. 953the terminal application will use this style.
613 954
623=item ($row, $col) = $term->selection_end ([$row, $col]) 964=item ($row, $col) = $term->selection_end ([$row, $col])
624 965
625Return the current values of the selection mark, begin or end positions, 966Return the current values of the selection mark, begin or end positions,
626and optionally set them to new values. 967and optionally set them to new values.
627 968
969=item $term->selection_make ($eventtime[, $rectangular])
970
971Tries to make a selection as set by C<selection_beg> and
972C<selection_end>. If C<$rectangular> is true (default: false), a
973rectangular selection will be made. This is the prefered function to make
974a selection.
975
628=item $success = $term->selection_grab ($eventtime) 976=item $success = $term->selection_grab ($eventtime)
629 977
630Try to request the primary selection from the server (for example, as set 978Try to request the primary selection text from the server (for example, as
631by the next method). 979set by the next method). No visual feedback will be given. This function
980is mostly useful from within C<on_sel_grab> hooks.
632 981
633=item $oldtext = $term->selection ([$newtext]) 982=item $oldtext = $term->selection ([$newtext])
634 983
635Return the current selection text and optionally replace it by C<$newtext>. 984Return the current selection text and optionally replace it by C<$newtext>.
636 985
637#=item $term->overlay ($x, $y, $text) 986=item $term->overlay_simple ($x, $y, $text)
638# 987
639#Create a simple multi-line overlay box. See the next method for details. 988Create a simple multi-line overlay box. See the next method for details.
640# 989
641#=cut 990=cut
642# 991
643#sub urxvt::term::scr_overlay { 992sub overlay_simple {
644# my ($self, $x, $y, $text) = @_; 993 my ($self, $x, $y, $text) = @_;
645# 994
646# my @lines = split /\n/, $text; 995 my @lines = split /\n/, $text;
647# 996
648# my $w = 0; 997 my $w = List::Util::max map $self->strwidth ($_), @lines;
649# for (map $self->strwidth ($_), @lines) { 998
650# $w = $_ if $w < $_;
651# }
652#
653# $self->scr_overlay_new ($x, $y, $w, scalar @lines); 999 my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
654# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines; 1000 $overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
655#} 1001
1002 $overlay
1003}
656 1004
657=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]]) 1005=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
658 1006
659Create a new (empty) overlay at the given position with the given 1007Create a new (empty) overlay at the given position with the given
660width/height. C<$rstyle> defines the initial rendition style 1008width/height. C<$rstyle> defines the initial rendition style
695C<$event> I<must> be the event causing the menu to pop up (a button event, 1043C<$event> I<must> be the event causing the menu to pop up (a button event,
696currently). 1044currently).
697 1045
698=cut 1046=cut
699 1047
700sub urxvt::term::popup { 1048sub popup {
701 my ($self, $event) = @_; 1049 my ($self, $event) = @_;
702 1050
703 $self->grab ($event->{time}, 1) 1051 $self->grab ($event->{time}, 1)
704 or return; 1052 or return;
705 1053
727 1075
728=item $string = $term->locale_decode ($octets) 1076=item $string = $term->locale_decode ($octets)
729 1077
730Convert the given locale-encoded octets into a perl string. 1078Convert the given locale-encoded octets into a perl string.
731 1079
1080=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
1081
1082XORs the rendition values in the given span with the provided value
1083(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
1084refresh hooks to provide effects similar to the selection.
1085
1086=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
1087
1088Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
1089whitespace will additionally be xored with the C<$rstyle2>, which defaults
1090to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
1091it instead. Both styles I<MUST NOT> contain font styles.
1092
1093=item $term->scr_bell
1094
1095Ring the bell!
1096
732=item $term->scr_add_lines ($string) 1097=item $term->scr_add_lines ($string)
733 1098
734Write the given text string to the screen, as if output by the application 1099Write the given text string to the screen, as if output by the application
735running inside the terminal. It may not contain command sequences (escape 1100running inside the terminal. It may not contain command sequences (escape
736codes), but is free to use line feeds, carriage returns and tabs. The 1101codes), but is free to use line feeds, carriage returns and tabs. The
750 1115
751Write the octets given in C<$data> to the tty (i.e. as program input). To 1116Write the octets given in C<$data> to the tty (i.e. as program input). To
752pass characters instead of octets, you should convert your strings first 1117pass characters instead of octets, you should convert your strings first
753to the locale-specific encoding using C<< $term->locale_encode >>. 1118to the locale-specific encoding using C<< $term->locale_encode >>.
754 1119
1120=item $old_events = $term->pty_ev_events ([$new_events])
1121
1122Replaces the event mask of the pty watcher by the given event mask. Can
1123be used to suppress input and output handling to the pty/tty. See the
1124description of C<< urxvt::timer->events >>. Make sure to always restore
1125the previous value.
1126
755=item $windowid = $term->parent 1127=item $windowid = $term->parent
756 1128
757Return the window id of the toplevel window. 1129Return the window id of the toplevel window.
758 1130
759=item $windowid = $term->vt 1131=item $windowid = $term->vt
783=item $nrow_plus_saveLines = $term->total_rows 1155=item $nrow_plus_saveLines = $term->total_rows
784 1156
785=item $lines_in_scrollback = $term->nsaved 1157=item $lines_in_scrollback = $term->nsaved
786 1158
787Return various integers describing terminal characteristics. 1159Return various integers describing terminal characteristics.
1160
1161=item $x_display = $term->display_id
1162
1163Return the DISPLAY used by rxvt-unicode.
1164
1165=item $lc_ctype = $term->locale
1166
1167Returns the LC_CTYPE category string used by this rxvt-unicode.
1168
1169=item $env = $term->env
1170
1171Returns a copy of the environment in effect for the terminal as a hashref
1172similar to C<\%ENV>.
1173
1174=cut
1175
1176sub env {
1177 if (my $env = $_[0]->_env) {
1178 +{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), @$env }
1179 } else {
1180 +{ %ENV }
1181 }
1182}
788 1183
789=item $modifiermask = $term->ModLevel3Mask 1184=item $modifiermask = $term->ModLevel3Mask
790 1185
791=item $modifiermask = $term->ModMetaMask 1186=item $modifiermask = $term->ModMetaMask
792 1187
885Return the row number of the first/last row of the line, respectively. 1280Return the row number of the first/last row of the line, respectively.
886 1281
887=item $offset = $line->offset_of ($row, $col) 1282=item $offset = $line->offset_of ($row, $col)
888 1283
889Returns the character offset of the given row|col pair within the logical 1284Returns the character offset of the given row|col pair within the logical
890line. 1285line. Works for rows outside the line, too, and returns corresponding
1286offsets outside the string.
891 1287
892=item ($row, $col) = $line->coord_of ($offset) 1288=item ($row, $col) = $line->coord_of ($offset)
893 1289
894Translates a string offset into terminal coordinates again. 1290Translates a string offset into terminal coordinates again.
895 1291
896=back 1292=back
897 1293
898=cut 1294=cut
899 1295
900sub urxvt::term::line { 1296sub line {
901 my ($self, $row) = @_; 1297 my ($self, $row) = @_;
902 1298
903 my $maxrow = $self->nrow - 1; 1299 my $maxrow = $self->nrow - 1;
904 1300
905 my ($beg, $end) = ($row, $row); 1301 my ($beg, $end) = ($row, $row);
969 $offset / $self->{ncol} + $self->{beg}, 1365 $offset / $self->{ncol} + $self->{beg},
970 $offset % $self->{ncol} 1366 $offset % $self->{ncol}
971 ) 1367 )
972} 1368}
973 1369
974=item ($row, $col) = $line->coord_of ($offset)
975=item $text = $term->special_encode $string 1370=item $text = $term->special_encode $string
976 1371
977Converts a perl string into the special encoding used by rxvt-unicode, 1372Converts a perl string into the special encoding used by rxvt-unicode,
978where one character corresponds to one screen cell. See 1373where one character corresponds to one screen cell. See
979C<< $term->ROW_t >> for details. 1374C<< $term->ROW_t >> for details.
981=item $string = $term->special_decode $text 1376=item $string = $term->special_decode $text
982 1377
983Converts rxvt-unicodes text reprsentation into a perl string. See 1378Converts rxvt-unicodes text reprsentation into a perl string. See
984C<< $term->ROW_t >> for details. 1379C<< $term->ROW_t >> for details.
985 1380
1381=item $success = $term->grab_button ($button, $modifiermask)
1382
1383Registers a synchronous button grab. See the XGrabButton manpage.
1384
1385=item $success = $term->grab ($eventtime[, $sync])
1386
1387Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
1388synchronous (C<$sync> is true). Also remembers the grab timestampe.
1389
1390=item $term->allow_events_async
1391
1392Calls XAllowEvents with AsyncBoth for the most recent grab.
1393
1394=item $term->allow_events_sync
1395
1396Calls XAllowEvents with SyncBoth for the most recent grab.
1397
1398=item $term->allow_events_replay
1399
1400Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
1401recent grab.
1402
1403=item $term->ungrab
1404
1405Calls XUngrab for the most recent grab. Is called automatically on
1406evaluation errors, as it is better to lose the grab in the error case as
1407the session.
1408
986=back 1409=back
987 1410
1411=cut
1412
1413package urxvt::popup;
1414
988=head2 The C<urxvt::popup> Class 1415=head2 The C<urxvt::popup> Class
989 1416
990=over 4 1417=over 4
991 1418
992=cut 1419=cut
993
994package urxvt::popup;
995 1420
996sub add_item { 1421sub add_item {
997 my ($self, $item) = @_; 1422 my ($self, $item) = @_;
998 1423
1424 $item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal};
1425 $item->{rend}{hover} = "\x1b[0;30;46m" unless exists $item->{rend}{hover};
1426 $item->{rend}{active} = "\x1b[m" unless exists $item->{rend}{active};
1427
1428 $item->{render} ||= sub { $_[0]{text} };
1429
999 push @{ $self->{item} }, $item; 1430 push @{ $self->{item} }, $item;
1000} 1431}
1432
1433=item $popup->add_title ($title)
1434
1435Adds a non-clickable title to the popup.
1436
1437=cut
1438
1439sub add_title {
1440 my ($self, $title) = @_;
1441
1442 $self->add_item ({
1443 rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
1444 text => $title,
1445 activate => sub { },
1446 });
1447}
1448
1449=item $popup->add_separator ([$sepchr])
1450
1451Creates a separator, optionally using the character given as C<$sepchr>.
1452
1453=cut
1454
1455sub add_separator {
1456 my ($self, $sep) = @_;
1457
1458 $sep ||= "=";
1459
1460 $self->add_item ({
1461 rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
1462 text => "",
1463 render => sub { $sep x $self->{term}->ncol },
1464 activate => sub { },
1465 });
1466}
1467
1468=item $popup->add_button ($text, $cb)
1469
1470Adds a clickable button to the popup. C<$cb> is called whenever it is
1471selected.
1472
1473=cut
1001 1474
1002sub add_button { 1475sub add_button {
1003 my ($self, $text, $cb) = @_; 1476 my ($self, $text, $cb) = @_;
1004 1477
1005 $self->add_item ({ type => "button", text => "[ $text ]", activate => $cb }); 1478 $self->add_item ({ type => "button", text => $text, activate => $cb});
1006} 1479}
1480
1481=item $popup->add_toggle ($text, $cb, $initial_value)
1482
1483Adds a toggle/checkbox item to the popup. Teh callback gets called
1484whenever it gets toggled, with a boolean indicating its value as its first
1485argument.
1486
1487=cut
1488
1489sub add_toggle {
1490 my ($self, $text, $cb, $value) = @_;
1491
1492 my $item; $item = {
1493 type => "button",
1494 text => " $text",
1495 value => $value,
1496 render => sub { ($_[0]{value} ? "* " : " ") . $text },
1497 activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
1498 };
1499
1500 $self->add_item ($item);
1501}
1502
1503=item $popup->show
1504
1505Displays the popup (which is initially hidden).
1506
1507=cut
1007 1508
1008sub show { 1509sub show {
1009 my ($self) = @_; 1510 my ($self) = @_;
1010 1511
1011 local $urxvt::popup::self = $self; 1512 local $urxvt::popup::self = $self;
1012 1513
1514 my $env = $self->{term}->env;
1515 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1516 delete $env->{LC_ALL};
1517 $env->{LC_CTYPE} = $self->{term}->locale;
1518
1519 urxvt::term->new ($env, $self->{term}->resource ("name"),
1013 urxvt->new ("--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0, 1520 "--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0,
1014 "--transient-for" => $self->{term}->parent, 1521 "--transient-for" => $self->{term}->parent,
1522 "-display" => $self->{term}->display_id,
1015 "-pe" => "urxvt-popup") 1523 "-pe" => "urxvt-popup")
1016 or die "unable to create popup window\n"; 1524 or die "unable to create popup window\n";
1017} 1525}
1018 1526
1019sub DESTROY { 1527sub DESTROY {
1020 my ($self) = @_; 1528 my ($self) = @_;
1021 1529
1530 delete $self->{term}{_destroy}{$self};
1022 $self->{term}->ungrab; 1531 $self->{term}->ungrab;
1023} 1532}
1533
1534=back
1024 1535
1025=head2 The C<urxvt::timer> Class 1536=head2 The C<urxvt::timer> Class
1026 1537
1027This class implements timer watchers/events. Time is represented as a 1538This class implements timer watchers/events. Time is represented as a
1028fractional number of seconds since the epoch. Example: 1539fractional number of seconds since the epoch. Example:
1081 1592
1082 $term->{socket} = ... 1593 $term->{socket} = ...
1083 $term->{iow} = urxvt::iow 1594 $term->{iow} = urxvt::iow
1084 ->new 1595 ->new
1085 ->fd (fileno $term->{socket}) 1596 ->fd (fileno $term->{socket})
1086 ->events (1) # wait for read data 1597 ->events (urxvt::EVENT_READ)
1087 ->start 1598 ->start
1088 ->cb (sub { 1599 ->cb (sub {
1089 my ($iow, $revents) = @_; 1600 my ($iow, $revents) = @_;
1090 # $revents must be 1 here, no need to check 1601 # $revents must be 1 here, no need to check
1091 sysread $term->{socket}, my $buf, 8192 1602 sysread $term->{socket}, my $buf, 8192
1108 1619
1109Set the filedescriptor (not handle) to watch. 1620Set the filedescriptor (not handle) to watch.
1110 1621
1111=item $iow = $iow->events ($eventmask) 1622=item $iow = $iow->events ($eventmask)
1112 1623
1113Set the event mask to watch. Bit #0 (value C<1>) enables watching for read 1624Set the event mask to watch. The only allowed values are
1114data, Bit #1 (value C<2>) enables watching for write data. 1625C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed
1626together, or C<urxvt::EVENT_NONE>.
1115 1627
1116=item $iow = $iow->start 1628=item $iow = $iow->start
1117 1629
1118Start watching for requested events on the given handle. 1630Start watching for requested events on the given handle.
1119 1631
1130This variable controls the verbosity level of the perl extension. Higher 1642This variable controls the verbosity level of the perl extension. Higher
1131numbers indicate more verbose output. 1643numbers indicate more verbose output.
1132 1644
1133=over 4 1645=over 4
1134 1646
1135=item =0 - only fatal messages 1647=item == 0 - fatal messages
1136 1648
1137=item =3 - script loading and management 1649=item >= 3 - script loading and management
1138 1650
1139=item =10 - all events received 1651=item >=10 - all called hooks
1652
1653=item >=11 - hook reutrn values
1140 1654
1141=back 1655=back
1142 1656
1143=head1 AUTHOR 1657=head1 AUTHOR
1144 1658

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