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Revision 1.49 by root, Sun Jan 8 00:07:18 2006 UTC vs.
Revision 1.90 by root, Thu Jan 12 12:15:10 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<$_> as resources:
116
117 URxvt.selection-autotransform.0: transform
118 URxvt.selection-autotransform.1: transform
119 ...
120
121For example, the following will transform selections of the form
122C<filename:number>, often seen in compiler messages, into C<vi +$filename
123$word>:
124
125 URxvt.selection-autotransform.0: s/^(\\S+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
126
127And this example matches the same,but replaces it with vi-commands you can
128paste directly into your (vi :) editor:
129
130 URxvt.selection-autotransform.0: s/^(S+):(d+):?$/\\x1b:e \\Q$1\\E\\x0d:$2\\x0d/
131
132Of course, this can be modified to suit your needs and your editor :)
64 133
65=item mark-urls 134=item mark-urls
66 135
67Uses per-line display filtering (C<on_line_update>) to underline urls. 136Uses per-line display filtering (C<on_line_update>) to underline urls and
137make them clickable. When middle-clicked, the program specified in the
138resource C<urlLauncher> (default C<x-www-browser>) will be started with
139the URL as first argument.
68 140
69=item block-graphics-to-ascii 141=item block-graphics-to-ascii
70 142
71A not very useful example of filtering all text output to the terminal, 143A not very useful example of filtering all text output to the terminal,
72by replacing all line-drawing characters (U+2500 .. U+259F) by a 144by replacing all line-drawing characters (U+2500 .. U+259F) by a
73similar-looking ascii character. 145similar-looking ascii character.
74 146
147=item digital-clock
148
149Displays a digital clock using the built-in overlay.
150
75=item example-refresh-hooks 151=item example-refresh-hooks
76 152
77Displays a very simple digital clock in the upper right corner of the 153Displays a very simple digital clock in the upper right corner of the
78window. Illustrates overwriting the refresh callbacks to create your own 154window. Illustrates overwriting the refresh callbacks to create your own
79overlays or changes. 155overlays or changes.
80 156
81=back 157=back
158
159=head1 API DOCUMENTATION
82 160
83=head2 General API Considerations 161=head2 General API Considerations
84 162
85All objects (such as terminals, time watchers etc.) are typical 163All objects (such as terminals, time watchers etc.) are typical
86reference-to-hash objects. The hash can be used to store anything you 164reference-to-hash objects. The hash can be used to store anything you
99=over 4 177=over 4
100 178
101=item $text 179=item $text
102 180
103Rxvt-unicodes special way of encoding text, where one "unicode" character 181Rxvt-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. 182always represents one screen cell. See L<ROW_t> for a discussion of this format.
105 183
106=item $string 184=item $string
107 185
108A perl text string, with an emphasis on I<text>. It can store all unicode 186A perl text string, with an emphasis on I<text>. It can store all unicode
109characters and is to be distinguished with text encoded in a specific 187characters and is to be distinguished with text encoded in a specific
114Either binary data or - more common - a text string encoded in a 192Either binary data or - more common - a text string encoded in a
115locale-specific way. 193locale-specific way.
116 194
117=back 195=back
118 196
197=head2 Extension Objects
198
199Very perl extension is a perl class. A separate perl object is created
200for each terminal and each extension and passed as the first parameter to
201hooks. So extensions can use their C<$self> object without having to think
202about other extensions, with the exception of methods and members that
203begin with an underscore character C<_>: these are reserved for internal
204use.
205
206Although it isn't a C<urxvt::term> object, you can call all methods of the
207C<urxvt::term> class on this object.
208
209It has the following methods and data members:
210
211=over 4
212
213=item $urxvt_term = $self->{term}
214
215Returns the C<urxvt::term> object associated with this instance of the
216extension. This member I<must not> be changed in any way.
217
218=item $self->enable ($hook_name => $cb, [$hook_name => $cb..])
219
220Dynamically enable the given hooks (named without the C<on_> prefix) for
221this extension, replacing any previous hook. This is useful when you want
222to overwrite time-critical hooks only temporarily.
223
224=item $self->disable ($hook_name[, $hook_name..])
225
226Dynamically disable the given hooks.
227
228=back
229
119=head2 Hooks 230=head2 Hooks
120 231
121The following subroutines can be declared in extension files, and will be 232The following subroutines can be declared in extension files, and will be
122called whenever the relevant event happens. 233called whenever the relevant event happens.
123 234
124The first argument passed to them is an object private to each terminal 235The 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 236the 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.
130 237
131All of them must return a boolean value. If it is true, then the event 238B<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, 239event 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. 240skipped, and the relevant action might not be carried out by the C++ code.
134 241
135When in doubt, return a false value (preferably C<()>). 242I<< When in doubt, return a false value (preferably C<()>). >>
136 243
137=over 4 244=over 4
138 245
139=item on_init $term 246=item on_init $term
140 247
175=item on_sel_extend $term 282=item on_sel_extend $term
176 283
177Called whenever the user tries to extend the selection (e.g. with a double 284Called whenever the user tries to extend the selection (e.g. with a double
178click) and is either supposed to return false (normal operation), or 285click) and is either supposed to return false (normal operation), or
179should extend the selection itelf and return true to suppress the built-in 286should extend the selection itelf and return true to suppress the built-in
180processing. 287processing. This can happen multiple times, as long as the callback
288returns true, it will be called on every further click by the user and is
289supposed to enlarge the selection more and more, if possible.
181 290
182See the F<selection> example extension. 291See the F<selection> example extension.
183 292
184=item on_view_change $term, $offset 293=item on_view_change $term, $offset
185 294
194than the scroll back buffer or the terminal. 303than the scroll back buffer or the terminal.
195 304
196It is called before lines are scrolled out (so rows 0 .. min ($lines - 1, 305It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
197$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total 306$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
198number of lines that will be in the scrollback buffer. 307number 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.
203 308
204=item on_osc_seq $term, $string 309=item on_osc_seq $term, $string
205 310
206Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC = 311Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
207operating system command) is processed. Cursor position and other state 312operating system command) is processed. Cursor position and other state
220can filter/change and output the text yourself by returning a true value 325can filter/change and output the text yourself by returning a true value
221and calling C<< $term->scr_add_lines >> yourself. Please note that this 326and 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 327might be very slow, however, as your hook is called for B<all> text being
223output. 328output.
224 329
330=item on_tt_write $term, $octets
331
332Called whenever some data is written to the tty/pty and can be used to
333suppress or filter tty input.
334
225=item on_line_update $term, $row 335=item on_line_update $term, $row
226 336
227Called whenever a line was updated or changed. Can be used to filter 337Called whenever a line was updated or changed. Can be used to filter
228screen output (e.g. underline urls or other useless stuff). Only lines 338screen output (e.g. underline urls or other useless stuff). Only lines
229that are being shown will be filtered, and, due to performance reasons, 339that are being shown will be filtered, and, due to performance reasons,
261=item on_focus_out $term 371=item on_focus_out $term
262 372
263Called wheneever the window loses keyboard focus, before rxvt-unicode does 373Called wheneever the window loses keyboard focus, before rxvt-unicode does
264focus out processing. 374focus out processing.
265 375
266=item on_key_press $term, $event, $octets 376=item on_key_press $term, $event, $keysym, $octets
267 377
268=item on_key_release $term, $event 378=item on_key_release $term, $event, $keysym
269 379
270=item on_button_press $term, $event 380=item on_button_press $term, $event
271 381
272=item on_button_release $term, $event 382=item on_button_release $term, $event
273 383
289 399
290subwindow. 400subwindow.
291 401
292=back 402=back
293 403
404=cut
405
406package urxvt;
407
408use utf8;
409use strict;
410use Carp ();
411use Scalar::Util ();
412use List::Util ();
413
414our $VERSION = 1;
415our $TERM;
416our @HOOKNAME;
417our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
418our %OPTION;
419
420our $LIBDIR;
421our $RESNAME;
422our $RESCLASS;
423our $RXVTNAME;
424
294=head2 Variables in the C<urxvt> Package 425=head2 Variables in the C<urxvt> Package
295 426
296=over 4 427=over 4
428
429=item $urxvt::LIBDIR
430
431The rxvt-unicode library directory, where, among other things, the perl
432modules and scripts are stored.
433
434=item $urxvt::RESCLASS, $urxvt::RESCLASS
435
436The resource class and name rxvt-unicode uses to look up X resources.
437
438=item $urxvt::RXVTNAME
439
440The basename of the installed binaries, usually C<urxvt>.
297 441
298=item $urxvt::TERM 442=item $urxvt::TERM
299 443
300The current terminal. This variable stores the current C<urxvt::term> 444The current terminal. This variable stores the current C<urxvt::term>
301object, whenever a callback/hook is executing. 445object, whenever a callback/hook is executing.
303=back 447=back
304 448
305=head2 Functions in the C<urxvt> Package 449=head2 Functions in the C<urxvt> Package
306 450
307=over 4 451=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.
316 452
317=item urxvt::fatal $errormessage 453=item urxvt::fatal $errormessage
318 454
319Fatally aborts execution with the given error message. Avoid at all 455Fatally aborts execution with the given error message. Avoid at all
320costs! The only time this is acceptable is when the terminal process 456costs! The only time this is acceptable is when the terminal process
327that calls this function. 463that calls this function.
328 464
329Using this function has the advantage that its output ends up in the 465Using this function has the advantage that its output ends up in the
330correct place, e.g. on stderr of the connecting urxvtc client. 466correct place, e.g. on stderr of the connecting urxvtc client.
331 467
468Messages have a size limit of 1023 bytes currently.
469
470=item $is_safe = urxvt::safe
471
472Returns true when it is safe to do potentially unsafe things, such as
473evaluating perl code specified by the user. This is true when urxvt was
474started setuid or setgid.
475
332=item $time = urxvt::NOW 476=item $time = urxvt::NOW
333 477
334Returns the "current time" (as per the event loop). 478Returns the "current time" (as per the event loop).
335 479
336=item urxvt::CurrentTime 480=item urxvt::CurrentTime
337 481
338=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, 482=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
339Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, 483Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
340Button4Mask, Button5Mask, AnyModifier 484Button4Mask, Button5Mask, AnyModifier
341 485
342Various constants for use in X events. 486Various constants for use in X calls and event processing.
343 487
344=back 488=back
345 489
346=head2 RENDITION 490=head2 RENDITION
347 491
374 518
375=item $background = urxvt::GET_BASEBG $rend 519=item $background = urxvt::GET_BASEBG $rend
376 520
377Return the foreground/background colour index, respectively. 521Return the foreground/background colour index, respectively.
378 522
379=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour) 523=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
380 524
381=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour) 525=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
382 526
383Replace the foreground/background colour in the rendition mask with the 527Replace the foreground/background colour in the rendition mask with the
384specified one. 528specified one.
385 529
386=item $value = urxvt::GET_CUSTOM ($rend) 530=item $value = urxvt::GET_CUSTOM $rend
387 531
388Return the "custom" value: Every rendition has 5 bits for use by 532Return the "custom" value: Every rendition has 5 bits for use by
389extensions. They can be set and changed as you like and are initially 533extensions. They can be set and changed as you like and are initially
390zero. 534zero.
391 535
392=item $rend = urxvt::SET_CUSTOM ($rend, $new_value) 536=item $rend = urxvt::SET_CUSTOM $rend, $new_value
393 537
394Change the custom value. 538Change the custom value.
395 539
396=back 540=back
397 541
398=cut 542=cut
399
400package urxvt;
401
402use utf8;
403use strict;
404use Scalar::Util ();
405use List::Util ();
406
407our $TERM;
408our @HOOKNAME;
409our %OPTION;
410our $LIBDIR;
411 543
412BEGIN { 544BEGIN {
413 urxvt->bootstrap; 545 urxvt->bootstrap;
414 546
415 # overwrite perl's warn 547 # overwrite perl's warn
417 my $msg = join "", @_; 549 my $msg = join "", @_;
418 $msg .= "\n" 550 $msg .= "\n"
419 unless $msg =~ /\n$/; 551 unless $msg =~ /\n$/;
420 urxvt::warn ($msg); 552 urxvt::warn ($msg);
421 }; 553 };
554
555 # %ENV is the original startup environment
556 delete $ENV{IFS};
557 delete $ENV{CDPATH};
558 delete $ENV{BASH_ENV};
559 $ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
422} 560}
423 561
424my @hook_count; 562my @hook_count;
425my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 563my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
426 564
427sub verbose { 565sub verbose {
428 my ($level, $msg) = @_; 566 my ($level, $msg) = @_;
429 warn "$msg\n" if $level <= $verbosity; 567 warn "$msg\n" if $level <= $verbosity;
430} 568}
431 569
432# find on_xxx subs in the package and register them
433# as hooks
434sub register_package($) {
435 my ($pkg) = @_;
436
437 for my $htype (0.. $#HOOKNAME) {
438 my $name = $HOOKNAME[$htype];
439
440 my $ref = $pkg->can ("on_" . lc $name)
441 or next;
442
443 $TERM->{_hook}[$htype]{$pkg} = $ref;
444 $hook_count[$htype]++
445 or set_should_invoke $htype, 1;
446 }
447}
448
449my $extension_pkg = "extension0000"; 570my $extension_pkg = "extension0000";
450my %extension_pkg; 571my %extension_pkg;
451 572
452# load a single script into its own package, once only 573# load a single script into its own package, once only
453sub extension_package($) { 574sub extension_package($) {
459 verbose 3, "loading extension '$path' into package '$pkg'"; 580 verbose 3, "loading extension '$path' into package '$pkg'";
460 581
461 open my $fh, "<:raw", $path 582 open my $fh, "<:raw", $path
462 or die "$path: $!"; 583 or die "$path: $!";
463 584
585 my $source = untaint
464 my $source = "package $pkg; use strict; use utf8;\n" 586 "package $pkg; use strict; use utf8;\n"
465 . "use base urxvt::term::proxy::;\n" 587 . "use base urxvt::term::extension::;\n"
466 . "#line 1 \"$path\"\n{\n" 588 . "#line 1 \"$path\"\n{\n"
467 . (do { local $/; <$fh> }) 589 . (do { local $/; <$fh> })
468 . "\n};\n1"; 590 . "\n};\n1";
469 591
592 eval $source
470 eval $source or die "$path: $@"; 593 or die "$path: $@";
471 594
472 $pkg 595 $pkg
473 } 596 }
474} 597}
475 598
481 my $htype = shift; 604 my $htype = shift;
482 605
483 if ($htype == 0) { # INIT 606 if ($htype == 0) { # INIT
484 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 607 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
485 608
609 my %ext_arg;
610
486 my @ext = (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2); 611 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
487
488 while (@ext) {
489 my $ext = shift @ext;
490 if ($ext eq "default") { 612 if ($_ eq "default") {
491 unshift @ext, qw(selection); 613 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback);
614 } elsif (/^-(.*)$/) {
615 delete $ext_arg{$1};
616 } elsif (/^([^<]+)<(.*)>$/) {
617 push @{ $ext_arg{$1} }, $2;
492 } else { 618 } else {
493 my @files = grep -f $_, map "$_/$ext", @dirs; 619 $ext_arg{$_} ||= [];
494
495 if (@files) {
496 register_package extension_package $files[0];
497 } else {
498 warn "perl extension '$ext' not found in perl library search path\n";
499 }
500 } 620 }
501 } 621 }
622
623 while (my ($ext, $argv) = each %ext_arg) {
624 my @files = grep -f $_, map "$_/$ext", @dirs;
625
626 if (@files) {
627 $TERM->register_package (extension_package $files[0], $argv);
628 } else {
629 warn "perl extension '$ext' not found in perl library search path\n";
630 }
631 }
632
633 eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval");
634 warn $@ if $@;
502 } 635 }
503 636
504 $retval = undef; 637 $retval = undef;
505 638
506 if (my $cb = $TERM->{_hook}[$htype]) { 639 if (my $cb = $TERM->{_hook}[$htype]) {
508 if $verbosity >= 10; 641 if $verbosity >= 10;
509 642
510 keys %$cb; 643 keys %$cb;
511 644
512 while (my ($pkg, $cb) = each %$cb) { 645 while (my ($pkg, $cb) = each %$cb) {
513 eval { 646 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) }
514 $retval = $cb->(
515 $TERM->{_pkg}{$pkg} ||= do {
516 my $proxy = bless { }, $pkg;
517 Scalar::Util::weaken ($proxy->{term} = $TERM);
518 $proxy
519 },
520 @_,
521 ) and last; 647 and last;
648
649 if ($@) {
650 $TERM->ungrab; # better to lose the grab than the session
651 warn $@;
522 }; 652 }
523 warn $@ if $@;#d#
524 } 653 }
654
655 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
656 if $verbosity >= 11;
525 } 657 }
526 658
527 if ($htype == 1) { # DESTROY 659 if ($htype == 1) { # DESTROY
528 # remove hooks if unused
529 if (my $hook = $TERM->{_hook}) { 660 if (my $hook = delete $TERM->{_hook}) {
530 for my $htype (0..$#$hook) { 661 for my $htype (0..$#$hook) {
531 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} } 662 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
532 or set_should_invoke $htype, 0; 663 or set_should_invoke $htype, 0;
533 } 664 }
534 } 665 }
541 } 672 }
542 673
543 $retval 674 $retval
544} 675}
545 676
546sub urxvt::term::proxy::AUTOLOAD { 677sub exec_async(@) {
547 $urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/ 678 my $pid = fork;
679
680 return
681 if !defined $pid or $pid;
682
683 %ENV = %{ $TERM->env };
684
685 exec @_;
686 _exit 255;
687}
688
689# urxvt::term::extension
690
691package urxvt::term::extension;
692
693sub enable {
694 my ($self, %hook) = @_;
695 my $pkg = $self->{_pkg};
696
697 while (my ($name, $cb) = each %hook) {
698 my $htype = $HOOKTYPE{uc $name};
699 defined $htype
700 or Carp::croak "unsupported hook type '$name'";
701
702 unless (exists $self->{term}{_hook}[$htype]{$pkg}) {
703 $hook_count[$htype]++
704 or urxvt::set_should_invoke $htype, 1;
705 }
706
707 $self->{term}{_hook}[$htype]{$pkg} = $cb;
708 }
709}
710
711sub disable {
712 my ($self, @hook) = @_;
713 my $pkg = $self->{_pkg};
714
715 for my $name (@hook) {
716 my $htype = $HOOKTYPE{uc $name};
717 defined $htype
718 or Carp::croak "unsupported hook type '$name'";
719
720 if (delete $self->{term}{_hook}[$htype]{$pkg}) {
721 --$hook_count[$htype]
722 or urxvt::set_should_invoke $htype, 0;
723 }
724 }
725}
726
727our $AUTOLOAD;
728
729sub AUTOLOAD {
730 $AUTOLOAD =~ /:([^:]+)$/
548 or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable"; 731 or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
549 732
550 eval qq{ 733 eval qq{
551 sub $urxvt::term::proxy::AUTOLOAD { 734 sub $AUTOLOAD {
552 my \$proxy = shift; 735 my \$proxy = shift;
553 \$proxy->{term}->$1 (\@_) 736 \$proxy->{term}->$1 (\@_)
554 } 737 }
555 1 738 1
556 } or die "FATAL: unable to compile method forwarder: $@"; 739 } or die "FATAL: unable to compile method forwarder: $@";
557 740
558 goto &$urxvt::term::proxy::AUTOLOAD; 741 goto &$AUTOLOAD;
559} 742}
743
744sub DESTROY {
745 # nop
746}
747
748# urxvt::destroy_hook
560 749
561sub urxvt::destroy_hook::DESTROY { 750sub urxvt::destroy_hook::DESTROY {
562 ${$_[0]}->(); 751 ${$_[0]}->();
563} 752}
564 753
565sub urxvt::destroy_hook(&) { 754sub urxvt::destroy_hook(&) {
566 bless \shift, urxvt::destroy_hook:: 755 bless \shift, urxvt::destroy_hook::
567} 756}
568 757
758package urxvt::anyevent;
759
760=head2 The C<urxvt::anyevent> Class
761
762The sole purpose of this class is to deliver an interface to the
763C<AnyEvent> module - any module using it will work inside urxvt without
764further programming. The only exception is that you cannot wait on
765condition variables, but non-blocking condvar use is ok. What this means
766is that you cannot use blocking APIs, but the non-blocking variant should
767work.
768
769=cut
770
771our $VERSION = 1;
772
773$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
774push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
775
776sub timer {
777 my ($class, %arg) = @_;
778
779 my $cb = $arg{cb};
780
781 urxvt::timer
782 ->new
783 ->start (urxvt::NOW + $arg{after})
784 ->cb (sub {
785 $_[0]->stop; # need to cancel manually
786 $cb->();
787 })
788}
789
790sub io {
791 my ($class, %arg) = @_;
792
793 my $cb = $arg{cb};
794
795 bless [$arg{fh}, urxvt::iow
796 ->new
797 ->fd (fileno $arg{fh})
798 ->events (($arg{poll} =~ /r/ ? 1 : 0)
799 | ($arg{poll} =~ /w/ ? 2 : 0))
800 ->start
801 ->cb (sub {
802 $cb->(($_[1] & 1 ? 'r' : '')
803 . ($_[1] & 2 ? 'w' : ''));
804 })],
805 urxvt::anyevent::
806}
807
808sub DESTROY {
809 $_[0][1]->stop;
810}
811
812sub condvar {
813 bless \my $flag, urxvt::anyevent::condvar::
814}
815
816sub urxvt::anyevent::condvar::broadcast {
817 ${$_[0]}++;
818}
819
820sub urxvt::anyevent::condvar::wait {
821 unless (${$_[0]}) {
822 Carp::croak "AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API";
823 }
824}
825
826package urxvt::term;
827
569=head2 The C<urxvt::term> Class 828=head2 The C<urxvt::term> Class
570 829
571=over 4 830=over 4
572 831
832=cut
833
834# find on_xxx subs in the package and register them
835# as hooks
836sub register_package {
837 my ($self, $pkg, $argv) = @_;
838
839 my $proxy = bless {
840 _pkg => $pkg,
841 argv => $argv,
842 }, $pkg;
843 Scalar::Util::weaken ($proxy->{term} = $self);
844
845 $self->{_pkg}{$pkg} = $proxy;
846
847 for my $name (@HOOKNAME) {
848 if (my $ref = $pkg->can ("on_" . lc $name)) {
849 $proxy->enable ($name => $ref);
850 }
851 }
852}
853
854=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
855
856Creates a new terminal, very similar as if you had started it with system
857C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
858hash which defines the environment of the new terminal.
859
860Croaks (and probably outputs an error message) if the new instance
861couldn't be created. Returns C<undef> if the new instance didn't
862initialise perl, and the terminal object otherwise. The C<init> and
863C<start> hooks will be called during this call.
864
865=cut
866
867sub new {
868 my ($class, $env, @args) = @_;
869
870 _new ([ map "$_=$env->{$_}", keys %$env ], @args);
871}
872
573=item $term->destroy 873=item $term->destroy
574 874
575Destroy the terminal object (close the window, free resources etc.). 875Destroy the terminal object (close the window, free resources
876etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
877watchers (timers, io watchers) are still active.
576 878
577=item $isset = $term->option ($optval[, $set]) 879=item $isset = $term->option ($optval[, $set])
578 880
579Returns true if the option specified by C<$optval> is enabled, and 881Returns true if the option specified by C<$optval> is enabled, and
580optionally change it. All option values are stored by name in the hash 882optionally change it. All option values are stored by name in the hash
624 shade term_name title transparent transparent_all tripleclickwords 926 shade term_name title transparent transparent_all tripleclickwords
625 utmpInhibit visualBell 927 utmpInhibit visualBell
626 928
627=cut 929=cut
628 930
629sub urxvt::term::resource($$;$) { 931sub resource($$;$) {
630 my ($self, $name) = (shift, shift); 932 my ($self, $name) = (shift, shift);
631 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 933 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
632 &urxvt::term::_resource 934 &urxvt::term::_resource
633} 935}
634 936
937=item $value = $term->x_resource ($pattern)
938
939Returns the X-Resource for the given pattern, excluding the program or
940class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
941same value as used by this instance of rxvt-unicode. Returns C<undef> if no
942resource with that pattern exists.
943
944This method should only be called during the C<on_start> hook, as there is
945only one resource database per display, and later invocations might return
946the wrong resources.
947
948=item $success = $term->parse_keysym ($keysym_spec, $command_string)
949
950Adds a keymap translation exactly as specified via a resource. See the
951C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
952
635=item $rend = $term->rstyle ([$new_rstyle]) 953=item $rend = $term->rstyle ([$new_rstyle])
636 954
637Return and optionally change the current rendition. Text that is output by 955Return and optionally change the current rendition. Text that is output by
638the terminal application will use this style. 956the terminal application will use this style.
639 957
649=item ($row, $col) = $term->selection_end ([$row, $col]) 967=item ($row, $col) = $term->selection_end ([$row, $col])
650 968
651Return the current values of the selection mark, begin or end positions, 969Return the current values of the selection mark, begin or end positions,
652and optionally set them to new values. 970and optionally set them to new values.
653 971
972=item $term->selection_make ($eventtime[, $rectangular])
973
974Tries to make a selection as set by C<selection_beg> and
975C<selection_end>. If C<$rectangular> is true (default: false), a
976rectangular selection will be made. This is the prefered function to make
977a selection.
978
654=item $success = $term->selection_grab ($eventtime) 979=item $success = $term->selection_grab ($eventtime)
655 980
656Try to request the primary selection from the server (for example, as set 981Try to request the primary selection text from the server (for example, as
657by the next method). 982set by the next method). No visual feedback will be given. This function
983is mostly useful from within C<on_sel_grab> hooks.
658 984
659=item $oldtext = $term->selection ([$newtext]) 985=item $oldtext = $term->selection ([$newtext])
660 986
661Return the current selection text and optionally replace it by C<$newtext>. 987Return the current selection text and optionally replace it by C<$newtext>.
662 988
663#=item $term->overlay ($x, $y, $text) 989=item $term->overlay_simple ($x, $y, $text)
664# 990
665#Create a simple multi-line overlay box. See the next method for details. 991Create a simple multi-line overlay box. See the next method for details.
666# 992
667#=cut 993=cut
668# 994
669#sub urxvt::term::scr_overlay { 995sub overlay_simple {
670# my ($self, $x, $y, $text) = @_; 996 my ($self, $x, $y, $text) = @_;
671# 997
672# my @lines = split /\n/, $text; 998 my @lines = split /\n/, $text;
673# 999
674# my $w = 0; 1000 my $w = List::Util::max map $self->strwidth ($_), @lines;
675# for (map $self->strwidth ($_), @lines) { 1001
676# $w = $_ if $w < $_;
677# }
678#
679# $self->scr_overlay_new ($x, $y, $w, scalar @lines); 1002 my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
680# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines; 1003 $overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
681#} 1004
1005 $overlay
1006}
682 1007
683=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]]) 1008=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
684 1009
685Create a new (empty) overlay at the given position with the given 1010Create a new (empty) overlay at the given position with the given
686width/height. C<$rstyle> defines the initial rendition style 1011width/height. C<$rstyle> defines the initial rendition style
721C<$event> I<must> be the event causing the menu to pop up (a button event, 1046C<$event> I<must> be the event causing the menu to pop up (a button event,
722currently). 1047currently).
723 1048
724=cut 1049=cut
725 1050
726sub urxvt::term::popup { 1051sub popup {
727 my ($self, $event) = @_; 1052 my ($self, $event) = @_;
728 1053
729 $self->grab ($event->{time}, 1) 1054 $self->grab ($event->{time}, 1)
730 or return; 1055 or return;
731 1056
753 1078
754=item $string = $term->locale_decode ($octets) 1079=item $string = $term->locale_decode ($octets)
755 1080
756Convert the given locale-encoded octets into a perl string. 1081Convert the given locale-encoded octets into a perl string.
757 1082
1083=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
1084
1085XORs the rendition values in the given span with the provided value
1086(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
1087refresh hooks to provide effects similar to the selection.
1088
1089=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
1090
1091Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
1092whitespace will additionally be xored with the C<$rstyle2>, which defaults
1093to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
1094it instead. Both styles I<MUST NOT> contain font styles.
1095
1096=item $term->scr_bell
1097
1098Ring the bell!
1099
758=item $term->scr_add_lines ($string) 1100=item $term->scr_add_lines ($string)
759 1101
760Write the given text string to the screen, as if output by the application 1102Write the given text string to the screen, as if output by the application
761running inside the terminal. It may not contain command sequences (escape 1103running inside the terminal. It may not contain command sequences (escape
762codes), but is free to use line feeds, carriage returns and tabs. The 1104codes), but is free to use line feeds, carriage returns and tabs. The
776 1118
777Write the octets given in C<$data> to the tty (i.e. as program input). To 1119Write the octets given in C<$data> to the tty (i.e. as program input). To
778pass characters instead of octets, you should convert your strings first 1120pass characters instead of octets, you should convert your strings first
779to the locale-specific encoding using C<< $term->locale_encode >>. 1121to the locale-specific encoding using C<< $term->locale_encode >>.
780 1122
1123=item $old_events = $term->pty_ev_events ([$new_events])
1124
1125Replaces the event mask of the pty watcher by the given event mask. Can
1126be used to suppress input and output handling to the pty/tty. See the
1127description of C<< urxvt::timer->events >>. Make sure to always restore
1128the previous value.
1129
781=item $windowid = $term->parent 1130=item $windowid = $term->parent
782 1131
783Return the window id of the toplevel window. 1132Return the window id of the toplevel window.
784 1133
785=item $windowid = $term->vt 1134=item $windowid = $term->vt
809=item $nrow_plus_saveLines = $term->total_rows 1158=item $nrow_plus_saveLines = $term->total_rows
810 1159
811=item $lines_in_scrollback = $term->nsaved 1160=item $lines_in_scrollback = $term->nsaved
812 1161
813Return various integers describing terminal characteristics. 1162Return various integers describing terminal characteristics.
1163
1164=item $x_display = $term->display_id
1165
1166Return the DISPLAY used by rxvt-unicode.
1167
1168=item $lc_ctype = $term->locale
1169
1170Returns the LC_CTYPE category string used by this rxvt-unicode.
1171
1172=item $env = $term->env
1173
1174Returns a copy of the environment in effect for the terminal as a hashref
1175similar to C<\%ENV>.
1176
1177=cut
1178
1179sub env {
1180 if (my $env = $_[0]->_env) {
1181 +{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), @$env }
1182 } else {
1183 +{ %ENV }
1184 }
1185}
814 1186
815=item $modifiermask = $term->ModLevel3Mask 1187=item $modifiermask = $term->ModLevel3Mask
816 1188
817=item $modifiermask = $term->ModMetaMask 1189=item $modifiermask = $term->ModMetaMask
818 1190
911Return the row number of the first/last row of the line, respectively. 1283Return the row number of the first/last row of the line, respectively.
912 1284
913=item $offset = $line->offset_of ($row, $col) 1285=item $offset = $line->offset_of ($row, $col)
914 1286
915Returns the character offset of the given row|col pair within the logical 1287Returns the character offset of the given row|col pair within the logical
916line. 1288line. Works for rows outside the line, too, and returns corresponding
1289offsets outside the string.
917 1290
918=item ($row, $col) = $line->coord_of ($offset) 1291=item ($row, $col) = $line->coord_of ($offset)
919 1292
920Translates a string offset into terminal coordinates again. 1293Translates a string offset into terminal coordinates again.
921 1294
922=back 1295=back
923 1296
924=cut 1297=cut
925 1298
926sub urxvt::term::line { 1299sub line {
927 my ($self, $row) = @_; 1300 my ($self, $row) = @_;
928 1301
929 my $maxrow = $self->nrow - 1; 1302 my $maxrow = $self->nrow - 1;
930 1303
931 my ($beg, $end) = ($row, $row); 1304 my ($beg, $end) = ($row, $row);
995 $offset / $self->{ncol} + $self->{beg}, 1368 $offset / $self->{ncol} + $self->{beg},
996 $offset % $self->{ncol} 1369 $offset % $self->{ncol}
997 ) 1370 )
998} 1371}
999 1372
1000=item ($row, $col) = $line->coord_of ($offset)
1001=item $text = $term->special_encode $string 1373=item $text = $term->special_encode $string
1002 1374
1003Converts a perl string into the special encoding used by rxvt-unicode, 1375Converts a perl string into the special encoding used by rxvt-unicode,
1004where one character corresponds to one screen cell. See 1376where one character corresponds to one screen cell. See
1005C<< $term->ROW_t >> for details. 1377C<< $term->ROW_t >> for details.
1007=item $string = $term->special_decode $text 1379=item $string = $term->special_decode $text
1008 1380
1009Converts rxvt-unicodes text reprsentation into a perl string. See 1381Converts rxvt-unicodes text reprsentation into a perl string. See
1010C<< $term->ROW_t >> for details. 1382C<< $term->ROW_t >> for details.
1011 1383
1384=item $success = $term->grab_button ($button, $modifiermask)
1385
1386Registers a synchronous button grab. See the XGrabButton manpage.
1387
1388=item $success = $term->grab ($eventtime[, $sync])
1389
1390Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
1391synchronous (C<$sync> is true). Also remembers the grab timestampe.
1392
1393=item $term->allow_events_async
1394
1395Calls XAllowEvents with AsyncBoth for the most recent grab.
1396
1397=item $term->allow_events_sync
1398
1399Calls XAllowEvents with SyncBoth for the most recent grab.
1400
1401=item $term->allow_events_replay
1402
1403Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
1404recent grab.
1405
1406=item $term->ungrab
1407
1408Calls XUngrab for the most recent grab. Is called automatically on
1409evaluation errors, as it is better to lose the grab in the error case as
1410the session.
1411
1012=back 1412=back
1013 1413
1414=cut
1415
1416package urxvt::popup;
1417
1014=head2 The C<urxvt::popup> Class 1418=head2 The C<urxvt::popup> Class
1015 1419
1016=over 4 1420=over 4
1017 1421
1018=cut 1422=cut
1019
1020package urxvt::popup;
1021 1423
1022sub add_item { 1424sub add_item {
1023 my ($self, $item) = @_; 1425 my ($self, $item) = @_;
1024 1426
1427 $item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal};
1428 $item->{rend}{hover} = "\x1b[0;30;46m" unless exists $item->{rend}{hover};
1429 $item->{rend}{active} = "\x1b[m" unless exists $item->{rend}{active};
1430
1431 $item->{render} ||= sub { $_[0]{text} };
1432
1025 push @{ $self->{item} }, $item; 1433 push @{ $self->{item} }, $item;
1026} 1434}
1435
1436=item $popup->add_title ($title)
1437
1438Adds a non-clickable title to the popup.
1439
1440=cut
1441
1442sub add_title {
1443 my ($self, $title) = @_;
1444
1445 $self->add_item ({
1446 rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
1447 text => $title,
1448 activate => sub { },
1449 });
1450}
1451
1452=item $popup->add_separator ([$sepchr])
1453
1454Creates a separator, optionally using the character given as C<$sepchr>.
1455
1456=cut
1457
1458sub add_separator {
1459 my ($self, $sep) = @_;
1460
1461 $sep ||= "=";
1462
1463 $self->add_item ({
1464 rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
1465 text => "",
1466 render => sub { $sep x $self->{term}->ncol },
1467 activate => sub { },
1468 });
1469}
1470
1471=item $popup->add_button ($text, $cb)
1472
1473Adds a clickable button to the popup. C<$cb> is called whenever it is
1474selected.
1475
1476=cut
1027 1477
1028sub add_button { 1478sub add_button {
1029 my ($self, $text, $cb) = @_; 1479 my ($self, $text, $cb) = @_;
1030 1480
1031 $self->add_item ({ type => "button", text => "[ $text ]", activate => $cb, 1481 $self->add_item ({ type => "button", text => $text, activate => $cb});
1032 render => sub { $_[0]{text} },
1033 });
1034} 1482}
1483
1484=item $popup->add_toggle ($text, $cb, $initial_value)
1485
1486Adds a toggle/checkbox item to the popup. Teh callback gets called
1487whenever it gets toggled, with a boolean indicating its value as its first
1488argument.
1489
1490=cut
1035 1491
1036sub add_toggle { 1492sub add_toggle {
1037 my ($self, $text, $cb, $value) = @_; 1493 my ($self, $text, $cb, $value) = @_;
1038 1494
1039 my $item; $item = { 1495 my $item; $item = {
1040 type => "button", 1496 type => "button",
1041 text => " $text", 1497 text => " $text",
1042 value => $value, 1498 value => $value,
1043 render => sub { ($item->{value} ? "" : " ") . $text }, 1499 render => sub { ($_[0]{value} ? "* " : " ") . $text },
1044 activate => sub { $cb->($item->{value} = !$item->{value}); }, 1500 activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
1045 }; 1501 };
1046 1502
1047 $self->add_item ($item); 1503 $self->add_item ($item);
1048} 1504}
1505
1506=item $popup->show
1507
1508Displays the popup (which is initially hidden).
1509
1510=cut
1049 1511
1050sub show { 1512sub show {
1051 my ($self) = @_; 1513 my ($self) = @_;
1052 1514
1053 local $urxvt::popup::self = $self; 1515 local $urxvt::popup::self = $self;
1054 1516
1517 my $env = $self->{term}->env;
1518 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1519 delete $env->{LC_ALL};
1520 $env->{LC_CTYPE} = $self->{term}->locale;
1521
1522 urxvt::term->new ($env, $self->{term}->resource ("name"),
1055 urxvt->new ("--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0, 1523 "--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0,
1056 "--transient-for" => $self->{term}->parent, 1524 "--transient-for" => $self->{term}->parent,
1525 "-display" => $self->{term}->display_id,
1057 "-pe" => "urxvt-popup") 1526 "-pe" => "urxvt-popup")
1058 or die "unable to create popup window\n"; 1527 or die "unable to create popup window\n";
1059} 1528}
1060 1529
1061sub DESTROY { 1530sub DESTROY {
1062 my ($self) = @_; 1531 my ($self) = @_;
1063 1532
1533 delete $self->{term}{_destroy}{$self};
1064 $self->{term}->ungrab; 1534 $self->{term}->ungrab;
1065} 1535}
1536
1537=back
1066 1538
1067=head2 The C<urxvt::timer> Class 1539=head2 The C<urxvt::timer> Class
1068 1540
1069This class implements timer watchers/events. Time is represented as a 1541This class implements timer watchers/events. Time is represented as a
1070fractional number of seconds since the epoch. Example: 1542fractional number of seconds since the epoch. Example:
1123 1595
1124 $term->{socket} = ... 1596 $term->{socket} = ...
1125 $term->{iow} = urxvt::iow 1597 $term->{iow} = urxvt::iow
1126 ->new 1598 ->new
1127 ->fd (fileno $term->{socket}) 1599 ->fd (fileno $term->{socket})
1128 ->events (1) # wait for read data 1600 ->events (urxvt::EVENT_READ)
1129 ->start 1601 ->start
1130 ->cb (sub { 1602 ->cb (sub {
1131 my ($iow, $revents) = @_; 1603 my ($iow, $revents) = @_;
1132 # $revents must be 1 here, no need to check 1604 # $revents must be 1 here, no need to check
1133 sysread $term->{socket}, my $buf, 8192 1605 sysread $term->{socket}, my $buf, 8192
1150 1622
1151Set the filedescriptor (not handle) to watch. 1623Set the filedescriptor (not handle) to watch.
1152 1624
1153=item $iow = $iow->events ($eventmask) 1625=item $iow = $iow->events ($eventmask)
1154 1626
1155Set the event mask to watch. Bit #0 (value C<1>) enables watching for read 1627Set the event mask to watch. The only allowed values are
1156data, Bit #1 (value C<2>) enables watching for write data. 1628C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed
1629together, or C<urxvt::EVENT_NONE>.
1157 1630
1158=item $iow = $iow->start 1631=item $iow = $iow->start
1159 1632
1160Start watching for requested events on the given handle. 1633Start watching for requested events on the given handle.
1161 1634
1172This variable controls the verbosity level of the perl extension. Higher 1645This variable controls the verbosity level of the perl extension. Higher
1173numbers indicate more verbose output. 1646numbers indicate more verbose output.
1174 1647
1175=over 4 1648=over 4
1176 1649
1177=item =0 - only fatal messages 1650=item == 0 - fatal messages
1178 1651
1179=item =3 - script loading and management 1652=item >= 3 - script loading and management
1180 1653
1181=item =10 - all events received 1654=item >=10 - all called hooks
1655
1656=item >=11 - hook reutrn values
1182 1657
1183=back 1658=back
1184 1659
1185=head1 AUTHOR 1660=head1 AUTHOR
1186 1661

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