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Revision 1.47 by root, Sat Jan 7 21:22:02 2006 UTC vs.
Revision 1.87 by root, Thu Jan 12 05:37:34 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
50A double-click usually selects the word under the cursor, further clicks
51will enlarge the selection.
52
49It also offers the following bindable event: 53It also offers the following bindable keyboard command:
50 54
51=over 4 55=over 4
52 56
53=item rot13 57=item rot13
54 58
56 60
57 URxvt.keysym.C-M-r: perl:selection:rot13 61 URxvt.keysym.C-M-r: perl:selection:rot13
58 62
59=back 63=back
60 64
65=item option-popup (enabled by default)
66
67Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at
68runtime.
69
70=item selection-popup (enabled by default)
71
72Binds a popup menu to Ctrl-Button3 that lets you convert the selection
73text into various other formats/action (such as uri unescaping, perl
74evalution, web-browser starting etc.), depending on content.
75
76=item searchable-scrollback<hotkey> (enabled by default)
77
78Adds regex search functionality to the scrollback buffer, triggered
79by a hotkey (default: C<M-s>). While in search mode, normal terminal
80input/output is suspended and a regex is displayed at the bottom of the
81screen.
82
83Inputting characters appends them to the regex and continues incremental
84search. C<BackSpace> removes a character from the regex, C<Up> and C<Down>
85search upwards/downwards in the scrollback buffer, C<End> jumps to the
86bottom. C<Escape> leaves search mode and returns to the point where search
87was started, while C<Enter> or C<Return> stay at the current position and
88additionally stores the first match in the current line into the primary
89selection.
90
61=item digital-clock 91=item digital-clock
62 92
63Displays a digital clock using the built-in overlay. 93Displays a digital clock using the built-in overlay.
64 94
65=item mark-urls 95=item mark-urls
66 96
67Uses per-line display filtering (C<on_line_update>) to underline urls. 97Uses per-line display filtering (C<on_line_update>) to underline urls and
98make them clickable. When middle-clicked, the program specified in the
99resource C<urlLauncher> (default C<x-www-browser>) will be started with
100the URL as first argument.
68 101
69=item block-graphics-to-ascii 102=item block-graphics-to-ascii
70 103
71A not very useful example of filtering all text output to the terminal, 104A not very useful example of filtering all text output to the terminal,
72by replacing all line-drawing characters (U+2500 .. U+259F) by a 105by replacing all line-drawing characters (U+2500 .. U+259F) by a
77Displays a very simple digital clock in the upper right corner of the 110Displays a very simple digital clock in the upper right corner of the
78window. Illustrates overwriting the refresh callbacks to create your own 111window. Illustrates overwriting the refresh callbacks to create your own
79overlays or changes. 112overlays or changes.
80 113
81=back 114=back
115
116=head1 API DOCUMENTATION
82 117
83=head2 General API Considerations 118=head2 General API Considerations
84 119
85All objects (such as terminals, time watchers etc.) are typical 120All objects (such as terminals, time watchers etc.) are typical
86reference-to-hash objects. The hash can be used to store anything you 121reference-to-hash objects. The hash can be used to store anything you
99=over 4 134=over 4
100 135
101=item $text 136=item $text
102 137
103Rxvt-unicodes special way of encoding text, where one "unicode" character 138Rxvt-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. 139always represents one screen cell. See L<ROW_t> for a discussion of this format.
105 140
106=item $string 141=item $string
107 142
108A perl text string, with an emphasis on I<text>. It can store all unicode 143A perl text string, with an emphasis on I<text>. It can store all unicode
109characters and is to be distinguished with text encoded in a specific 144characters and is to be distinguished with text encoded in a specific
114Either binary data or - more common - a text string encoded in a 149Either binary data or - more common - a text string encoded in a
115locale-specific way. 150locale-specific way.
116 151
117=back 152=back
118 153
154=head2 Extension Objects
155
156Very perl extension is a perl class. A separate perl object is created
157for each terminal and each extension and passed as the first parameter to
158hooks. So extensions can use their C<$self> object without having to think
159about other extensions, with the exception of methods and members that
160begin with an underscore character C<_>: these are reserved for internal
161use.
162
163Although it isn't a C<urxvt::term> object, you can call all methods of the
164C<urxvt::term> class on this object.
165
166It has the following methods and data members:
167
168=over 4
169
170=item $urxvt_term = $self->{term}
171
172Returns the C<urxvt::term> object associated with this instance of the
173extension. This member I<must not> be changed in any way.
174
175=item $self->enable ($hook_name => $cb, [$hook_name => $cb..])
176
177Dynamically enable the given hooks (named without the C<on_> prefix) for
178this extension, replacing any previous hook. This is useful when you want
179to overwrite time-critical hooks only temporarily.
180
181=item $self->disable ($hook_name[, $hook_name..])
182
183Dynamically disable the given hooks.
184
185=back
186
119=head2 Hooks 187=head2 Hooks
120 188
121The following subroutines can be declared in extension files, and will be 189The following subroutines can be declared in extension files, and will be
122called whenever the relevant event happens. 190called whenever the relevant event happens.
123 191
124The first argument passed to them is an object private to each terminal 192The 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 193the 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.
130 194
131All of them must return a boolean value. If it is true, then the event 195B<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, 196event 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. 197skipped, and the relevant action might not be carried out by the C++ code.
134 198
135When in doubt, return a false value (preferably C<()>). 199I<< When in doubt, return a false value (preferably C<()>). >>
136 200
137=over 4 201=over 4
138 202
139=item on_init $term 203=item on_init $term
140 204
175=item on_sel_extend $term 239=item on_sel_extend $term
176 240
177Called whenever the user tries to extend the selection (e.g. with a double 241Called whenever the user tries to extend the selection (e.g. with a double
178click) and is either supposed to return false (normal operation), or 242click) and is either supposed to return false (normal operation), or
179should extend the selection itelf and return true to suppress the built-in 243should extend the selection itelf and return true to suppress the built-in
180processing. 244processing. This can happen multiple times, as long as the callback
245returns true, it will be called on every further click by the user and is
246supposed to enlarge the selection more and more, if possible.
181 247
182See the F<selection> example extension. 248See the F<selection> example extension.
183 249
184=item on_view_change $term, $offset 250=item on_view_change $term, $offset
185 251
194than the scroll back buffer or the terminal. 260than the scroll back buffer or the terminal.
195 261
196It is called before lines are scrolled out (so rows 0 .. min ($lines - 1, 262It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
197$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total 263$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
198number of lines that will be in the scrollback buffer. 264number 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.
203 265
204=item on_osc_seq $term, $string 266=item on_osc_seq $term, $string
205 267
206Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC = 268Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
207operating system command) is processed. Cursor position and other state 269operating system command) is processed. Cursor position and other state
220can filter/change and output the text yourself by returning a true value 282can filter/change and output the text yourself by returning a true value
221and calling C<< $term->scr_add_lines >> yourself. Please note that this 283and 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 284might be very slow, however, as your hook is called for B<all> text being
223output. 285output.
224 286
287=item on_tt_write $term, $octets
288
289Called whenever some data is written to the tty/pty and can be used to
290suppress or filter tty input.
291
225=item on_line_update $term, $row 292=item on_line_update $term, $row
226 293
227Called whenever a line was updated or changed. Can be used to filter 294Called whenever a line was updated or changed. Can be used to filter
228screen output (e.g. underline urls or other useless stuff). Only lines 295screen output (e.g. underline urls or other useless stuff). Only lines
229that are being shown will be filtered, and, due to performance reasons, 296that are being shown will be filtered, and, due to performance reasons,
261=item on_focus_out $term 328=item on_focus_out $term
262 329
263Called wheneever the window loses keyboard focus, before rxvt-unicode does 330Called wheneever the window loses keyboard focus, before rxvt-unicode does
264focus out processing. 331focus out processing.
265 332
266=item on_key_press $term, $event, $octets 333=item on_key_press $term, $event, $keysym, $octets
267 334
268=item on_key_release $term, $event 335=item on_key_release $term, $event, $keysym
269 336
270=item on_button_press $term, $event 337=item on_button_press $term, $event
271 338
272=item on_button_release $term, $event 339=item on_button_release $term, $event
273 340
289 356
290subwindow. 357subwindow.
291 358
292=back 359=back
293 360
361=cut
362
363package urxvt;
364
365use utf8;
366use strict;
367use Carp ();
368use Scalar::Util ();
369use List::Util ();
370
371our $VERSION = 1;
372our $TERM;
373our @HOOKNAME;
374our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
375our %OPTION;
376
377our $LIBDIR;
378our $RESNAME;
379our $RESCLASS;
380our $RXVTNAME;
381
294=head2 Variables in the C<urxvt> Package 382=head2 Variables in the C<urxvt> Package
295 383
296=over 4 384=over 4
385
386=item $urxvt::LIBDIR
387
388The rxvt-unicode library directory, where, among other things, the perl
389modules and scripts are stored.
390
391=item $urxvt::RESCLASS, $urxvt::RESCLASS
392
393The resource class and name rxvt-unicode uses to look up X resources.
394
395=item $urxvt::RXVTNAME
396
397The basename of the installed binaries, usually C<urxvt>.
297 398
298=item $urxvt::TERM 399=item $urxvt::TERM
299 400
300The current terminal. This variable stores the current C<urxvt::term> 401The current terminal. This variable stores the current C<urxvt::term>
301object, whenever a callback/hook is executing. 402object, whenever a callback/hook is executing.
303=back 404=back
304 405
305=head2 Functions in the C<urxvt> Package 406=head2 Functions in the C<urxvt> Package
306 407
307=over 4 408=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.
316 409
317=item urxvt::fatal $errormessage 410=item urxvt::fatal $errormessage
318 411
319Fatally aborts execution with the given error message. Avoid at all 412Fatally aborts execution with the given error message. Avoid at all
320costs! The only time this is acceptable is when the terminal process 413costs! The only time this is acceptable is when the terminal process
327that calls this function. 420that calls this function.
328 421
329Using this function has the advantage that its output ends up in the 422Using this function has the advantage that its output ends up in the
330correct place, e.g. on stderr of the connecting urxvtc client. 423correct place, e.g. on stderr of the connecting urxvtc client.
331 424
425Messages have a size limit of 1023 bytes currently.
426
427=item $is_safe = urxvt::safe
428
429Returns true when it is safe to do potentially unsafe things, such as
430evaluating perl code specified by the user. This is true when urxvt was
431started setuid or setgid.
432
332=item $time = urxvt::NOW 433=item $time = urxvt::NOW
333 434
334Returns the "current time" (as per the event loop). 435Returns the "current time" (as per the event loop).
335 436
336=item urxvt::CurrentTime 437=item urxvt::CurrentTime
337 438
338=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, 439=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
339Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, 440Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
340Button4Mask, Button5Mask, AnyModifier 441Button4Mask, Button5Mask, AnyModifier
341 442
342Various constants for use in X events. 443Various constants for use in X calls and event processing.
343 444
344=back 445=back
345 446
346=head2 RENDITION 447=head2 RENDITION
347 448
374 475
375=item $background = urxvt::GET_BASEBG $rend 476=item $background = urxvt::GET_BASEBG $rend
376 477
377Return the foreground/background colour index, respectively. 478Return the foreground/background colour index, respectively.
378 479
379=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour) 480=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
380 481
381=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour) 482=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
382 483
383Replace the foreground/background colour in the rendition mask with the 484Replace the foreground/background colour in the rendition mask with the
384specified one. 485specified one.
385 486
386=item $value = urxvt::GET_CUSTOM ($rend) 487=item $value = urxvt::GET_CUSTOM $rend
387 488
388Return the "custom" value: Every rendition has 5 bits for use by 489Return the "custom" value: Every rendition has 5 bits for use by
389extensions. They can be set and changed as you like and are initially 490extensions. They can be set and changed as you like and are initially
390zero. 491zero.
391 492
392=item $rend = urxvt::SET_CUSTOM ($rend, $new_value) 493=item $rend = urxvt::SET_CUSTOM $rend, $new_value
393 494
394Change the custom value. 495Change the custom value.
395 496
396=back 497=back
397 498
398=cut 499=cut
399
400package urxvt;
401
402use strict;
403use Scalar::Util ();
404
405our $TERM;
406our @HOOKNAME;
407our $LIBDIR;
408 500
409BEGIN { 501BEGIN {
410 urxvt->bootstrap; 502 urxvt->bootstrap;
411 503
412 # overwrite perl's warn 504 # overwrite perl's warn
414 my $msg = join "", @_; 506 my $msg = join "", @_;
415 $msg .= "\n" 507 $msg .= "\n"
416 unless $msg =~ /\n$/; 508 unless $msg =~ /\n$/;
417 urxvt::warn ($msg); 509 urxvt::warn ($msg);
418 }; 510 };
511
512 # %ENV is the original startup environment
513 delete $ENV{IFS};
514 delete $ENV{CDPATH};
515 delete $ENV{BASH_ENV};
516 $ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
419} 517}
420 518
421my @hook_count; 519my @hook_count;
422my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 520my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
423 521
424sub verbose { 522sub verbose {
425 my ($level, $msg) = @_; 523 my ($level, $msg) = @_;
426 warn "$msg\n" if $level <= $verbosity; 524 warn "$msg\n" if $level <= $verbosity;
427} 525}
428 526
429# find on_xxx subs in the package and register them
430# as hooks
431sub register_package($) {
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"; 527my $extension_pkg = "extension0000";
447my %extension_pkg; 528my %extension_pkg;
448 529
449# load a single script into its own package, once only 530# load a single script into its own package, once only
450sub extension_package($) { 531sub extension_package($) {
456 verbose 3, "loading extension '$path' into package '$pkg'"; 537 verbose 3, "loading extension '$path' into package '$pkg'";
457 538
458 open my $fh, "<:raw", $path 539 open my $fh, "<:raw", $path
459 or die "$path: $!"; 540 or die "$path: $!";
460 541
542 my $source = untaint
461 my $source = "package $pkg; use strict; use utf8;\n" 543 "package $pkg; use strict; use utf8;\n"
462 . "use base urxvt::term::proxy::;\n" 544 . "use base urxvt::term::extension::;\n"
463 . "#line 1 \"$path\"\n{\n" 545 . "#line 1 \"$path\"\n{\n"
464 . (do { local $/; <$fh> }) 546 . (do { local $/; <$fh> })
465 . "\n};\n1"; 547 . "\n};\n1";
466 548
549 eval $source
467 eval $source or die "$path: $@"; 550 or die "$path: $@";
468 551
469 $pkg 552 $pkg
470 } 553 }
471} 554}
472 555
477 local $TERM = shift; 560 local $TERM = shift;
478 my $htype = shift; 561 my $htype = shift;
479 562
480 if ($htype == 0) { # INIT 563 if ($htype == 0) { # INIT
481 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 564 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
565
566 my %ext_arg;
482 567
483 for my $ext (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 568 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
569 if ($_ eq "default") {
570 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback);
571 } elsif (/^-(.*)$/) {
572 delete $ext_arg{$1};
573 } elsif (/^([^<]+)<(.*)>$/) {
574 push @{ $ext_arg{$1} }, $2;
575 } else {
576 $ext_arg{$_} ||= [];
577 }
578 }
579
580 while (my ($ext, $argv) = each %ext_arg) {
484 my @files = grep -f $_, map "$_/$ext", @dirs; 581 my @files = grep -f $_, map "$_/$ext", @dirs;
485 582
486 if (@files) { 583 if (@files) {
487 register_package extension_package $files[0]; 584 $TERM->register_package (extension_package $files[0], $argv);
488 } else { 585 } else {
489 warn "perl extension '$ext' not found in perl library search path\n"; 586 warn "perl extension '$ext' not found in perl library search path\n";
490 } 587 }
491 } 588 }
589
590 eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval");
591 warn $@ if $@;
492 } 592 }
493 593
494 $retval = undef; 594 $retval = undef;
495 595
496 if (my $cb = $TERM->{_hook}[$htype]) { 596 if (my $cb = $TERM->{_hook}[$htype]) {
498 if $verbosity >= 10; 598 if $verbosity >= 10;
499 599
500 keys %$cb; 600 keys %$cb;
501 601
502 while (my ($pkg, $cb) = each %$cb) { 602 while (my ($pkg, $cb) = each %$cb) {
503 eval { 603 $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 $proxy
509 },
510 @_,
511 ) and last; 604 and last;
605
606 if ($@) {
607 $TERM->ungrab; # better to lose the grab than the session
608 warn $@;
512 }; 609 }
513 warn $@ if $@;#d#
514 } 610 }
611
612 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
613 if $verbosity >= 11;
515 } 614 }
516 615
517 if ($htype == 1) { # DESTROY 616 if ($htype == 1) { # DESTROY
518 # remove hooks if unused
519 if (my $hook = $TERM->{_hook}) { 617 if (my $hook = delete $TERM->{_hook}) {
520 for my $htype (0..$#$hook) { 618 for my $htype (0..$#$hook) {
521 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} } 619 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
522 or set_should_invoke $htype, 0; 620 or set_should_invoke $htype, 0;
523 } 621 }
524 } 622 }
531 } 629 }
532 630
533 $retval 631 $retval
534} 632}
535 633
536sub urxvt::term::proxy::AUTOLOAD { 634sub exec_async(@) {
537 $urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/ 635 my $pid = fork;
636
637 return
638 if !defined $pid or $pid;
639
640 %ENV = %{ $TERM->env };
641
642 exec @_;
643 _exit 255;
644}
645
646# urxvt::term::extension
647
648package urxvt::term::extension;
649
650sub enable {
651 my ($self, %hook) = @_;
652 my $pkg = $self->{_pkg};
653
654 while (my ($name, $cb) = each %hook) {
655 my $htype = $HOOKTYPE{uc $name};
656 defined $htype
657 or Carp::croak "unsupported hook type '$name'";
658
659 unless (exists $self->{term}{_hook}[$htype]{$pkg}) {
660 $hook_count[$htype]++
661 or urxvt::set_should_invoke $htype, 1;
662 }
663
664 $self->{term}{_hook}[$htype]{$pkg} = $cb;
665 }
666}
667
668sub disable {
669 my ($self, @hook) = @_;
670 my $pkg = $self->{_pkg};
671
672 for my $name (@hook) {
673 my $htype = $HOOKTYPE{uc $name};
674 defined $htype
675 or Carp::croak "unsupported hook type '$name'";
676
677 if (delete $self->{term}{_hook}[$htype]{$pkg}) {
678 --$hook_count[$htype]
679 or urxvt::set_should_invoke $htype, 0;
680 }
681 }
682}
683
684our $AUTOLOAD;
685
686sub AUTOLOAD {
687 $AUTOLOAD =~ /:([^:]+)$/
538 or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable"; 688 or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
539 689
540 eval qq{ 690 eval qq{
541 sub $urxvt::term::proxy::AUTOLOAD { 691 sub $AUTOLOAD {
542 my \$proxy = shift; 692 my \$proxy = shift;
543 \$proxy->{term}->$1 (\@_) 693 \$proxy->{term}->$1 (\@_)
544 } 694 }
545 1 695 1
546 } or die "FATAL: unable to compile method forwarder: $@"; 696 } or die "FATAL: unable to compile method forwarder: $@";
547 697
548 goto &$urxvt::term::proxy::AUTOLOAD; 698 goto &$AUTOLOAD;
549} 699}
700
701sub DESTROY {
702 # nop
703}
704
705# urxvt::destroy_hook
550 706
551sub urxvt::destroy_hook::DESTROY { 707sub urxvt::destroy_hook::DESTROY {
552 ${$_[0]}->(); 708 ${$_[0]}->();
553} 709}
554 710
555sub urxvt::destroy_hook(&) { 711sub urxvt::destroy_hook(&) {
556 bless \shift, urxvt::destroy_hook:: 712 bless \shift, urxvt::destroy_hook::
557} 713}
558 714
715package urxvt::anyevent;
716
717=head2 The C<urxvt::anyevent> Class
718
719The sole purpose of this class is to deliver an interface to the
720C<AnyEvent> module - any module using it will work inside urxvt without
721further programming. The only exception is that you cannot wait on
722condition variables, but non-blocking condvar use is ok. What this means
723is that you cannot use blocking APIs, but the non-blocking variant should
724work.
725
726=cut
727
728our $VERSION = 1;
729
730$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
731push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
732
733sub timer {
734 my ($class, %arg) = @_;
735
736 my $cb = $arg{cb};
737
738 urxvt::timer
739 ->new
740 ->start (urxvt::NOW + $arg{after})
741 ->cb (sub {
742 $_[0]->stop; # need to cancel manually
743 $cb->();
744 })
745}
746
747sub io {
748 my ($class, %arg) = @_;
749
750 my $cb = $arg{cb};
751
752 bless [$arg{fh}, urxvt::iow
753 ->new
754 ->fd (fileno $arg{fh})
755 ->events (($arg{poll} =~ /r/ ? 1 : 0)
756 | ($arg{poll} =~ /w/ ? 2 : 0))
757 ->start
758 ->cb (sub {
759 $cb->(($_[1] & 1 ? 'r' : '')
760 . ($_[1] & 2 ? 'w' : ''));
761 })],
762 urxvt::anyevent::
763}
764
765sub DESTROY {
766 $_[0][1]->stop;
767}
768
769sub condvar {
770 bless \my $flag, urxvt::anyevent::condvar::
771}
772
773sub urxvt::anyevent::condvar::broadcast {
774 ${$_[0]}++;
775}
776
777sub urxvt::anyevent::condvar::wait {
778 unless (${$_[0]}) {
779 Carp::croak "AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API";
780 }
781}
782
783package urxvt::term;
784
559=head2 The C<urxvt::term> Class 785=head2 The C<urxvt::term> Class
560 786
561=over 4 787=over 4
562 788
789=cut
790
791# find on_xxx subs in the package and register them
792# as hooks
793sub register_package {
794 my ($self, $pkg, $argv) = @_;
795
796 my $proxy = bless {
797 _pkg => $pkg,
798 argv => $argv,
799 }, $pkg;
800 Scalar::Util::weaken ($proxy->{term} = $self);
801
802 $self->{_pkg}{$pkg} = $proxy;
803
804 for my $name (@HOOKNAME) {
805 if (my $ref = $pkg->can ("on_" . lc $name)) {
806 $proxy->enable ($name => $ref);
807 }
808 }
809}
810
811=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
812
813Creates a new terminal, very similar as if you had started it with system
814C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
815hash which defines the environment of the new terminal.
816
817Croaks (and probably outputs an error message) if the new instance
818couldn't be created. Returns C<undef> if the new instance didn't
819initialise perl, and the terminal object otherwise. The C<init> and
820C<start> hooks will be called during this call.
821
822=cut
823
824sub new {
825 my ($class, $env, @args) = @_;
826
827 _new ([ map "$_=$env->{$_}", keys %$env ], @args);
828}
829
563=item $term->destroy 830=item $term->destroy
564 831
565Destroy the terminal object (close the window, free resources etc.). 832Destroy the terminal object (close the window, free resources
833etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
834watchers (timers, io watchers) are still active.
835
836=item $isset = $term->option ($optval[, $set])
837
838Returns true if the option specified by C<$optval> is enabled, and
839optionally change it. All option values are stored by name in the hash
840C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
841
842Here is a a likely non-exhaustive list of option names, please see the
843source file F</src/optinc.h> to see the actual list:
844
845 borderLess console cursorBlink cursorUnderline hold iconic insecure
846 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
847 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating
848 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer
849 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent
850 tripleclickwords utmpInhibit visualBell
566 851
567=item $value = $term->resource ($name[, $newval]) 852=item $value = $term->resource ($name[, $newval])
568 853
569Returns the current resource value associated with a given name and 854Returns the current resource value associated with a given name and
570optionally sets a new value. Setting values is most useful in the C<init> 855optionally sets a new value. Setting values is most useful in the C<init>
580 865
581Please note that resource strings will currently only be freed when the 866Please note that resource strings will currently only be freed when the
582terminal is destroyed, so changing options frequently will eat memory. 867terminal is destroyed, so changing options frequently will eat memory.
583 868
584Here is a a likely non-exhaustive list of resource names, not all of which 869Here 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 870are supported in every build, please see the source file F</src/rsinc.h>
586list: 871to see the actual list:
587 872
588 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 873 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
589 borderLess color cursorBlink cursorUnderline cutchars delete_key 874 borderLess color cursorBlink cursorUnderline cutchars delete_key
590 display_name embed ext_bwidth fade font geometry hold iconName 875 display_name embed ext_bwidth fade font geometry hold iconName
591 imFont imLocale inputMethod insecure int_bwidth intensityStyles 876 imFont imLocale inputMethod insecure int_bwidth intensityStyles
598 shade term_name title transparent transparent_all tripleclickwords 883 shade term_name title transparent transparent_all tripleclickwords
599 utmpInhibit visualBell 884 utmpInhibit visualBell
600 885
601=cut 886=cut
602 887
603sub urxvt::term::resource($$;$) { 888sub resource($$;$) {
604 my ($self, $name) = (shift, shift); 889 my ($self, $name) = (shift, shift);
605 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 890 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
606 &urxvt::term::_resource 891 &urxvt::term::_resource
607} 892}
608 893
894=item $value = $term->x_resource ($pattern)
895
896Returns the X-Resource for the given pattern, excluding the program or
897class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
898same value as used by this instance of rxvt-unicode. Returns C<undef> if no
899resource with that pattern exists.
900
901This method should only be called during the C<on_start> hook, as there is
902only one resource database per display, and later invocations might return
903the wrong resources.
904
905=item $success = $term->parse_keysym ($keysym_spec, $command_string)
906
907Adds a keymap translation exactly as specified via a resource. See the
908C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
909
609=item $rend = $term->rstyle ([$new_rstyle]) 910=item $rend = $term->rstyle ([$new_rstyle])
610 911
611Return and optionally change the current rendition. Text that is output by 912Return and optionally change the current rendition. Text that is output by
612the terminal application will use this style. 913the terminal application will use this style.
613 914
623=item ($row, $col) = $term->selection_end ([$row, $col]) 924=item ($row, $col) = $term->selection_end ([$row, $col])
624 925
625Return the current values of the selection mark, begin or end positions, 926Return the current values of the selection mark, begin or end positions,
626and optionally set them to new values. 927and optionally set them to new values.
627 928
929=item $term->selection_make ($eventtime[, $rectangular])
930
931Tries to make a selection as set by C<selection_beg> and
932C<selection_end>. If C<$rectangular> is true (default: false), a
933rectangular selection will be made. This is the prefered function to make
934a selection.
935
628=item $success = $term->selection_grab ($eventtime) 936=item $success = $term->selection_grab ($eventtime)
629 937
630Try to request the primary selection from the server (for example, as set 938Try to request the primary selection text from the server (for example, as
631by the next method). 939set by the next method). No visual feedback will be given. This function
940is mostly useful from within C<on_sel_grab> hooks.
632 941
633=item $oldtext = $term->selection ([$newtext]) 942=item $oldtext = $term->selection ([$newtext])
634 943
635Return the current selection text and optionally replace it by C<$newtext>. 944Return the current selection text and optionally replace it by C<$newtext>.
636 945
637#=item $term->overlay ($x, $y, $text) 946=item $term->overlay_simple ($x, $y, $text)
638# 947
639#Create a simple multi-line overlay box. See the next method for details. 948Create a simple multi-line overlay box. See the next method for details.
640# 949
641#=cut 950=cut
642# 951
643#sub urxvt::term::scr_overlay { 952sub overlay_simple {
644# my ($self, $x, $y, $text) = @_; 953 my ($self, $x, $y, $text) = @_;
645# 954
646# my @lines = split /\n/, $text; 955 my @lines = split /\n/, $text;
647# 956
648# my $w = 0; 957 my $w = List::Util::max map $self->strwidth ($_), @lines;
649# for (map $self->strwidth ($_), @lines) { 958
650# $w = $_ if $w < $_;
651# }
652#
653# $self->scr_overlay_new ($x, $y, $w, scalar @lines); 959 my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
654# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines; 960 $overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
655#} 961
962 $overlay
963}
656 964
657=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]]) 965=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
658 966
659Create a new (empty) overlay at the given position with the given 967Create a new (empty) overlay at the given position with the given
660width/height. C<$rstyle> defines the initial rendition style 968width/height. C<$rstyle> defines the initial rendition style
695C<$event> I<must> be the event causing the menu to pop up (a button event, 1003C<$event> I<must> be the event causing the menu to pop up (a button event,
696currently). 1004currently).
697 1005
698=cut 1006=cut
699 1007
700sub urxvt::term::popup { 1008sub popup {
701 my ($self, $event) = @_; 1009 my ($self, $event) = @_;
702 1010
703 $self->grab ($event->{time}, 1) 1011 $self->grab ($event->{time}, 1)
704 or return; 1012 or return;
705 1013
727 1035
728=item $string = $term->locale_decode ($octets) 1036=item $string = $term->locale_decode ($octets)
729 1037
730Convert the given locale-encoded octets into a perl string. 1038Convert the given locale-encoded octets into a perl string.
731 1039
1040=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
1041
1042XORs the rendition values in the given span with the provided value
1043(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
1044refresh hooks to provide effects similar to the selection.
1045
1046=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
1047
1048Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
1049whitespace will additionally be xored with the C<$rstyle2>, which defaults
1050to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
1051it instead. Both styles I<MUST NOT> contain font styles.
1052
1053=item $term->scr_bell
1054
1055Ring the bell!
1056
732=item $term->scr_add_lines ($string) 1057=item $term->scr_add_lines ($string)
733 1058
734Write the given text string to the screen, as if output by the application 1059Write the given text string to the screen, as if output by the application
735running inside the terminal. It may not contain command sequences (escape 1060running inside the terminal. It may not contain command sequences (escape
736codes), but is free to use line feeds, carriage returns and tabs. The 1061codes), but is free to use line feeds, carriage returns and tabs. The
750 1075
751Write the octets given in C<$data> to the tty (i.e. as program input). To 1076Write the octets given in C<$data> to the tty (i.e. as program input). To
752pass characters instead of octets, you should convert your strings first 1077pass characters instead of octets, you should convert your strings first
753to the locale-specific encoding using C<< $term->locale_encode >>. 1078to the locale-specific encoding using C<< $term->locale_encode >>.
754 1079
1080=item $old_events = $term->pty_ev_events ([$new_events])
1081
1082Replaces the event mask of the pty watcher by the given event mask. Can
1083be used to suppress input and output handling to the pty/tty. See the
1084description of C<< urxvt::timer->events >>. Make sure to always restore
1085the previous value.
1086
755=item $windowid = $term->parent 1087=item $windowid = $term->parent
756 1088
757Return the window id of the toplevel window. 1089Return the window id of the toplevel window.
758 1090
759=item $windowid = $term->vt 1091=item $windowid = $term->vt
783=item $nrow_plus_saveLines = $term->total_rows 1115=item $nrow_plus_saveLines = $term->total_rows
784 1116
785=item $lines_in_scrollback = $term->nsaved 1117=item $lines_in_scrollback = $term->nsaved
786 1118
787Return various integers describing terminal characteristics. 1119Return various integers describing terminal characteristics.
1120
1121=item $x_display = $term->display_id
1122
1123Return the DISPLAY used by rxvt-unicode.
1124
1125=item $lc_ctype = $term->locale
1126
1127Returns the LC_CTYPE category string used by this rxvt-unicode.
1128
1129=item $env = $term->env
1130
1131Returns a copy of the environment in effect for the terminal as a hashref
1132similar to C<\%ENV>.
1133
1134=cut
1135
1136sub env {
1137 if (my $env = $_[0]->_env) {
1138 +{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), @$env }
1139 } else {
1140 +{ %ENV }
1141 }
1142}
788 1143
789=item $modifiermask = $term->ModLevel3Mask 1144=item $modifiermask = $term->ModLevel3Mask
790 1145
791=item $modifiermask = $term->ModMetaMask 1146=item $modifiermask = $term->ModMetaMask
792 1147
885Return the row number of the first/last row of the line, respectively. 1240Return the row number of the first/last row of the line, respectively.
886 1241
887=item $offset = $line->offset_of ($row, $col) 1242=item $offset = $line->offset_of ($row, $col)
888 1243
889Returns the character offset of the given row|col pair within the logical 1244Returns the character offset of the given row|col pair within the logical
890line. 1245line. Works for rows outside the line, too, and returns corresponding
1246offsets outside the string.
891 1247
892=item ($row, $col) = $line->coord_of ($offset) 1248=item ($row, $col) = $line->coord_of ($offset)
893 1249
894Translates a string offset into terminal coordinates again. 1250Translates a string offset into terminal coordinates again.
895 1251
896=back 1252=back
897 1253
898=cut 1254=cut
899 1255
900sub urxvt::term::line { 1256sub line {
901 my ($self, $row) = @_; 1257 my ($self, $row) = @_;
902 1258
903 my $maxrow = $self->nrow - 1; 1259 my $maxrow = $self->nrow - 1;
904 1260
905 my ($beg, $end) = ($row, $row); 1261 my ($beg, $end) = ($row, $row);
969 $offset / $self->{ncol} + $self->{beg}, 1325 $offset / $self->{ncol} + $self->{beg},
970 $offset % $self->{ncol} 1326 $offset % $self->{ncol}
971 ) 1327 )
972} 1328}
973 1329
974=item ($row, $col) = $line->coord_of ($offset)
975=item $text = $term->special_encode $string 1330=item $text = $term->special_encode $string
976 1331
977Converts a perl string into the special encoding used by rxvt-unicode, 1332Converts a perl string into the special encoding used by rxvt-unicode,
978where one character corresponds to one screen cell. See 1333where one character corresponds to one screen cell. See
979C<< $term->ROW_t >> for details. 1334C<< $term->ROW_t >> for details.
981=item $string = $term->special_decode $text 1336=item $string = $term->special_decode $text
982 1337
983Converts rxvt-unicodes text reprsentation into a perl string. See 1338Converts rxvt-unicodes text reprsentation into a perl string. See
984C<< $term->ROW_t >> for details. 1339C<< $term->ROW_t >> for details.
985 1340
1341=item $success = $term->grab_button ($button, $modifiermask)
1342
1343Registers a synchronous button grab. See the XGrabButton manpage.
1344
1345=item $success = $term->grab ($eventtime[, $sync])
1346
1347Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
1348synchronous (C<$sync> is true). Also remembers the grab timestampe.
1349
1350=item $term->allow_events_async
1351
1352Calls XAllowEvents with AsyncBoth for the most recent grab.
1353
1354=item $term->allow_events_sync
1355
1356Calls XAllowEvents with SyncBoth for the most recent grab.
1357
1358=item $term->allow_events_replay
1359
1360Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
1361recent grab.
1362
1363=item $term->ungrab
1364
1365Calls XUngrab for the most recent grab. Is called automatically on
1366evaluation errors, as it is better to lose the grab in the error case as
1367the session.
1368
986=back 1369=back
987 1370
1371=cut
1372
1373package urxvt::popup;
1374
988=head2 The C<urxvt::popup> Class 1375=head2 The C<urxvt::popup> Class
989 1376
990=over 4 1377=over 4
991 1378
992=cut 1379=cut
993
994package urxvt::popup;
995 1380
996sub add_item { 1381sub add_item {
997 my ($self, $item) = @_; 1382 my ($self, $item) = @_;
998 1383
1384 $item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal};
1385 $item->{rend}{hover} = "\x1b[0;30;46m" unless exists $item->{rend}{hover};
1386 $item->{rend}{active} = "\x1b[m" unless exists $item->{rend}{active};
1387
1388 $item->{render} ||= sub { $_[0]{text} };
1389
999 push @{ $self->{item} }, $item; 1390 push @{ $self->{item} }, $item;
1000} 1391}
1392
1393=item $popup->add_title ($title)
1394
1395Adds a non-clickable title to the popup.
1396
1397=cut
1398
1399sub add_title {
1400 my ($self, $title) = @_;
1401
1402 $self->add_item ({
1403 rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
1404 text => $title,
1405 activate => sub { },
1406 });
1407}
1408
1409=item $popup->add_separator ([$sepchr])
1410
1411Creates a separator, optionally using the character given as C<$sepchr>.
1412
1413=cut
1414
1415sub add_separator {
1416 my ($self, $sep) = @_;
1417
1418 $sep ||= "=";
1419
1420 $self->add_item ({
1421 rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
1422 text => "",
1423 render => sub { $sep x $self->{term}->ncol },
1424 activate => sub { },
1425 });
1426}
1427
1428=item $popup->add_button ($text, $cb)
1429
1430Adds a clickable button to the popup. C<$cb> is called whenever it is
1431selected.
1432
1433=cut
1001 1434
1002sub add_button { 1435sub add_button {
1003 my ($self, $text, $cb) = @_; 1436 my ($self, $text, $cb) = @_;
1004 1437
1005 $self->add_item ({ type => "button", text => "[ $text ]", activate => $cb }); 1438 $self->add_item ({ type => "button", text => $text, activate => $cb});
1006} 1439}
1440
1441=item $popup->add_toggle ($text, $cb, $initial_value)
1442
1443Adds a toggle/checkbox item to the popup. Teh callback gets called
1444whenever it gets toggled, with a boolean indicating its value as its first
1445argument.
1446
1447=cut
1448
1449sub add_toggle {
1450 my ($self, $text, $cb, $value) = @_;
1451
1452 my $item; $item = {
1453 type => "button",
1454 text => " $text",
1455 value => $value,
1456 render => sub { ($_[0]{value} ? "* " : " ") . $text },
1457 activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
1458 };
1459
1460 $self->add_item ($item);
1461}
1462
1463=item $popup->show
1464
1465Displays the popup (which is initially hidden).
1466
1467=cut
1007 1468
1008sub show { 1469sub show {
1009 my ($self) = @_; 1470 my ($self) = @_;
1010 1471
1011 local $urxvt::popup::self = $self; 1472 local $urxvt::popup::self = $self;
1012 1473
1474 my $env = $self->{term}->env;
1475 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1476 delete $env->{LC_ALL};
1477 $env->{LC_CTYPE} = $self->{term}->locale;
1478
1479 urxvt::term->new ($env, $self->{term}->resource ("name"),
1013 urxvt->new ("--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0, 1480 "--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0,
1014 "--transient-for" => $self->{term}->parent, 1481 "--transient-for" => $self->{term}->parent,
1482 "-display" => $self->{term}->display_id,
1015 "-pe" => "urxvt-popup") 1483 "-pe" => "urxvt-popup")
1016 or die "unable to create popup window\n"; 1484 or die "unable to create popup window\n";
1017} 1485}
1018 1486
1019sub DESTROY { 1487sub DESTROY {
1020 my ($self) = @_; 1488 my ($self) = @_;
1021 1489
1490 delete $self->{term}{_destroy}{$self};
1022 $self->{term}->ungrab; 1491 $self->{term}->ungrab;
1023} 1492}
1493
1494=back
1024 1495
1025=head2 The C<urxvt::timer> Class 1496=head2 The C<urxvt::timer> Class
1026 1497
1027This class implements timer watchers/events. Time is represented as a 1498This class implements timer watchers/events. Time is represented as a
1028fractional number of seconds since the epoch. Example: 1499fractional number of seconds since the epoch. Example:
1081 1552
1082 $term->{socket} = ... 1553 $term->{socket} = ...
1083 $term->{iow} = urxvt::iow 1554 $term->{iow} = urxvt::iow
1084 ->new 1555 ->new
1085 ->fd (fileno $term->{socket}) 1556 ->fd (fileno $term->{socket})
1086 ->events (1) # wait for read data 1557 ->events (urxvt::EVENT_READ)
1087 ->start 1558 ->start
1088 ->cb (sub { 1559 ->cb (sub {
1089 my ($iow, $revents) = @_; 1560 my ($iow, $revents) = @_;
1090 # $revents must be 1 here, no need to check 1561 # $revents must be 1 here, no need to check
1091 sysread $term->{socket}, my $buf, 8192 1562 sysread $term->{socket}, my $buf, 8192
1108 1579
1109Set the filedescriptor (not handle) to watch. 1580Set the filedescriptor (not handle) to watch.
1110 1581
1111=item $iow = $iow->events ($eventmask) 1582=item $iow = $iow->events ($eventmask)
1112 1583
1113Set the event mask to watch. Bit #0 (value C<1>) enables watching for read 1584Set the event mask to watch. The only allowed values are
1114data, Bit #1 (value C<2>) enables watching for write data. 1585C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed
1586together, or C<urxvt::EVENT_NONE>.
1115 1587
1116=item $iow = $iow->start 1588=item $iow = $iow->start
1117 1589
1118Start watching for requested events on the given handle. 1590Start watching for requested events on the given handle.
1119 1591
1130This variable controls the verbosity level of the perl extension. Higher 1602This variable controls the verbosity level of the perl extension. Higher
1131numbers indicate more verbose output. 1603numbers indicate more verbose output.
1132 1604
1133=over 4 1605=over 4
1134 1606
1135=item =0 - only fatal messages 1607=item == 0 - fatal messages
1136 1608
1137=item =3 - script loading and management 1609=item >= 3 - script loading and management
1138 1610
1139=item =10 - all events received 1611=item >=10 - all called hooks
1612
1613=item >=11 - hook reutrn values
1140 1614
1141=back 1615=back
1142 1616
1143=head1 AUTHOR 1617=head1 AUTHOR
1144 1618

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