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Comparing rxvt-unicode/src/urxvt.pm (file contents):
Revision 1.95 by elmex, Tue Jan 17 13:19:45 2006 UTC vs.
Revision 1.127 by root, Wed Jan 25 00:42:21 2006 UTC

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
40Or by adding them to the resource for extensions loaded by default:
41
42 URxvt.perl-ext-common: default,automove-background,selection-autotransform
39 43
40=over 4 44=over 4
41 45
42=item selection (enabled by default) 46=item selection (enabled by default)
43 47
63the match. For example, the followign adds a regex that matches everything 67the match. For example, the followign adds a regex that matches everything
64between two vertical bars: 68between two vertical bars:
65 69
66 URxvt.selection.pattern-0: \\|([^|]+)\\| 70 URxvt.selection.pattern-0: \\|([^|]+)\\|
67 71
72Another example: Programs I use often output "absolute path: " at the
73beginning of a line when they process multiple files. The following
74pattern matches the filename (note, there is a single space at the very
75end):
76
77 URxvt.selection.pattern-0: ^(/[^:]+):\
78
68You can look at the source of the selection extension to see more 79You can look at the source of the selection extension to see more
69interesting uses, such as parsing a line from beginning to end. 80interesting uses, such as parsing a line from beginning to end.
70 81
71This extension also offers following bindable keyboard commands: 82This extension also offers following bindable keyboard commands:
72 83
76 87
77Rot-13 the selection when activated. Used via keyboard trigger: 88Rot-13 the selection when activated. Used via keyboard trigger:
78 89
79 URxvt.keysym.C-M-r: perl:selection:rot13 90 URxvt.keysym.C-M-r: perl:selection:rot13
80 91
81=item remote-pastebin
82
83Upload the selection as textfile to a remote site.
84
85 URxvt.keysym.C-M-e: perl:selection:remote-pastebin
86
87To set the command to upload the file set this resource:
88
89 URxvt.selection-pastebin-cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
90
91The % is the placeholder for the textfile. The name of the textfile is the hex encoded
92md5 sum of the selection.
93After an successful upload the selection will be replaced by the following url
94(the % is the placeholder for the filename):
95
96 URxvt.selection-pastebin-url: http://www.ta-sa.org/files/txt/%
97
98=back 92=back
99 93
100=item option-popup (enabled by default) 94=item option-popup (enabled by default)
101 95
102Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at 96Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at
104 98
105=item selection-popup (enabled by default) 99=item selection-popup (enabled by default)
106 100
107Binds a popup menu to Ctrl-Button3 that lets you convert the selection 101Binds a popup menu to Ctrl-Button3 that lets you convert the selection
108text into various other formats/action (such as uri unescaping, perl 102text into various other formats/action (such as uri unescaping, perl
109evalution, web-browser starting etc.), depending on content. 103evaluation, web-browser starting etc.), depending on content.
104
105Other extensions can extend this popup menu by pushing a code reference
106onto C<@{ $term->{selection_popup_hook} }>, that is called whenever the
107popup is displayed.
108
109It's sole argument is the popup menu, which can be modified. The selection
110is in C<$_>, which can be used to decide wether to add something or not.
111It should either return nothing or a string and a code reference. The
112string will be used as button text and the code reference will be called
113when the button gets activated and should transform C<$_>.
114
115The following will add an entry C<a to b> that transforms all C<a>s in
116the selection to C<b>s, but only if the selection currently contains any
117C<a>s:
118
119 push @{ $self->{term}{selection_popup_hook} }, sub {
120 /a/ ? ("a to be" => sub { s/a/b/g }
121 : ()
122 };
110 123
111=item searchable-scrollback<hotkey> (enabled by default) 124=item searchable-scrollback<hotkey> (enabled by default)
112 125
113Adds regex search functionality to the scrollback buffer, triggered 126Adds regex search functionality to the scrollback buffer, triggered
114by a hotkey (default: C<M-s>). While in search mode, normal terminal 127by a hotkey (default: C<M-s>). While in search mode, normal terminal
121bottom. C<Escape> leaves search mode and returns to the point where search 134bottom. C<Escape> leaves search mode and returns to the point where search
122was started, while C<Enter> or C<Return> stay at the current position and 135was started, while C<Enter> or C<Return> stay at the current position and
123additionally stores the first match in the current line into the primary 136additionally stores the first match in the current line into the primary
124selection. 137selection.
125 138
139=item readline (enabled by default)
140
141A support package that tries to make editing with readline easier. At the
142moment, it reacts to clicking with the left mouse button by trying to
143move the text cursor to this position. It does so by generating as many
144cursor-left or cursor-right keypresses as required (the this only works
145for programs that correctly support wide characters).
146
147To avoid too many false positives, this is only done when:
148
149=over 4
150
151=item - the tty is in ICANON state.
152
153=item - the text cursor is visible.
154
155=item - the primary screen is currently being displayed.
156
157=item - the mouse is on the same (multi-row-) line as the text cursor.
158
159=back
160
161The normal selection mechanism isn't disabled, so quick successive clicks
162might interfere with selection creation in harmless ways.
163
126=item selection-autotransform 164=item selection-autotransform
127 165
128This selection allows you to do automatic transforms on a selection 166This selection allows you to do automatic transforms on a selection
129whenever a selection is made. 167whenever a selection is made.
130 168
142 URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/ 180 URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
143 181
144And this example matches the same,but replaces it with vi-commands you can 182And this example matches the same,but replaces it with vi-commands you can
145paste directly into your (vi :) editor: 183paste directly into your (vi :) editor:
146 184
147 URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/\\x1b:e \\Q$1\\E\\x0d:$2\\x0d/ 185 URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
148 186
149Of course, this can be modified to suit your needs and your editor :) 187Of course, this can be modified to suit your needs and your editor :)
150 188
151To expand the example above to typical perl error messages ("XXX at 189To expand the example above to typical perl error messages ("XXX at
152FILENAME line YYY."), you need a slightly more elaborate solution: 190FILENAME line YYY."), you need a slightly more elaborate solution:
153 191
154 URxvt.selection.pattern-0: ( at .*? line \\d+\\.) 192 URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
155 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)\\.$/\x1b:e \\Q$1\E\\x0d:$2\\x0d/ 193 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
156 194
157The first line tells the selection code to treat the unchanging part of 195The first line tells the selection code to treat the unchanging part of
158every error message as a selection pattern, and the second line transforms 196every error message as a selection pattern, and the second line transforms
159the message into vi commands to load the file. 197the message into vi commands to load the file.
198
199=item tabbed
200
201This transforms the terminal into a tabbar with additional terminals, that
202is, it implements what is commonly refered to as "tabbed terminal". The topmost line
203displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
204button per tab.
205
206Clicking a button will activate that tab. Pressing B<Shift-Left> and
207B<Shift-Right> will switch to the tab left or right of the current one,
208while B<Shift-Down> creates a new tab.
160 209
161=item mark-urls 210=item mark-urls
162 211
163Uses per-line display filtering (C<on_line_update>) to underline urls and 212Uses per-line display filtering (C<on_line_update>) to underline urls and
164make them clickable. When middle-clicked, the program specified in the 213make them clickable. When middle-clicked, the program specified in the
165resource C<urlLauncher> (default C<x-www-browser>) will be started with 214resource C<urlLauncher> (default C<x-www-browser>) will be started with
166the URL as first argument. 215the URL as first argument.
167 216
217=item automove-background
218
219This is basically a one-line extension that dynamically changes the background pixmap offset
220to the window position, in effect creating the same effect as pseudo transparency with
221a custom pixmap. No scaling is supported in this mode. Exmaple:
222
223 @@RXVT_NAME@@ -pixmap background.xpm -pe automove-background
224
168=item block-graphics-to-ascii 225=item block-graphics-to-ascii
169 226
170A not very useful example of filtering all text output to the terminal, 227A not very useful example of filtering all text output to the terminal,
171by replacing all line-drawing characters (U+2500 .. U+259F) by a 228by replacing all line-drawing characters (U+2500 .. U+259F) by a
172similar-looking ascii character. 229similar-looking ascii character.
178=item example-refresh-hooks 235=item example-refresh-hooks
179 236
180Displays a very simple digital clock in the upper right corner of the 237Displays a very simple digital clock in the upper right corner of the
181window. Illustrates overwriting the refresh callbacks to create your own 238window. Illustrates overwriting the refresh callbacks to create your own
182overlays or changes. 239overlays or changes.
240
241=item selection-pastebin
242
243This is a little rarely useful extension that Uploads the selection as
244textfile to a remote site (or does other things). (The implementation is
245not currently secure for use in a multiuser environment as it writes to
246F</tmp> directly.).
247
248It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
249i.e.
250
251 URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
252
253Pressing this combination runs a command with C<%> replaced by the name of
254the textfile. This command can be set via a resource:
255
256 URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
257
258And the default is likely not useful to anybody but the few people around
259here :)
260
261The name of the textfile is the hex encoded md5 sum of the selection, so
262the same content should lead to the same filename.
263
264After a successful upload the selection will be replaced by the text given
265in the C<selection-pastebin-url> resource (again, the % is the placeholder
266for the filename):
267
268 URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
183 269
184=back 270=back
185 271
186=head1 API DOCUMENTATION 272=head1 API DOCUMENTATION
187 273
260called whenever the relevant event happens. 346called whenever the relevant event happens.
261 347
262The first argument passed to them is an extension oject as described in 348The first argument passed to them is an extension oject as described in
263the in the C<Extension Objects> section. 349the in the C<Extension Objects> section.
264 350
265B<All> of these hooks must return a boolean value. If it is true, then the 351B<All> of these hooks must return a boolean value. If any of the called
266event counts as being I<consumed>, and the invocation of other hooks is 352hooks returns true, then the event counts as being I<consumed>, and the
267skipped, and the relevant action might not be carried out by the C++ code. 353relevant action might not be carried out by the C++ code.
268 354
269I<< When in doubt, return a false value (preferably C<()>). >> 355I<< When in doubt, return a false value (preferably C<()>). >>
270 356
271=over 4 357=over 4
272 358
273=item on_init $term 359=item on_init $term
274 360
275Called after a new terminal object has been initialized, but before 361Called after a new terminal object has been initialized, but before
276windows are created or the command gets run. Most methods are unsafe to 362windows are created or the command gets run. Most methods are unsafe to
277call or deliver senseless data, as terminal size and other characteristics 363call or deliver senseless data, as terminal size and other characteristics
278have not yet been determined. You can safely query and change resources, 364have not yet been determined. You can safely query and change resources
279though. 365and options, though. For many purposes the C<on_start> hook is a better
366place.
367
368=item on_start $term
369
370Called at the very end of initialisation of a new terminal, just before
371trying to map (display) the toplevel and returning to the mainloop.
372
373=item on_destroy $term
374
375Called whenever something tries to destroy terminal, when the terminal is
376still fully functional (not for long, though).
280 377
281=item on_reset $term 378=item on_reset $term
282 379
283Called after the screen is "reset" for any reason, such as resizing or 380Called after the screen is "reset" for any reason, such as resizing or
284control sequences. Here is where you can react on changes to size-related 381control sequences. Here is where you can react on changes to size-related
285variables. 382variables.
286 383
287=item on_start $term 384=item on_child_start $term, $pid
288 385
289Called at the very end of initialisation of a new terminal, just before 386Called just after the child process has been C<fork>ed.
290returning to the mainloop. 387
388=item on_child_exit $term, $status
389
390Called just after the child process has exited. C<$status> is the status
391from C<waitpid>.
291 392
292=item on_sel_make $term, $eventtime 393=item on_sel_make $term, $eventtime
293 394
294Called whenever a selection has been made by the user, but before the 395Called whenever a selection has been made by the user, but before the
295selection text is copied, so changes to the beginning, end or type of the 396selection text is copied, so changes to the beginning, end or type of the
404=item on_focus_out $term 505=item on_focus_out $term
405 506
406Called wheneever the window loses keyboard focus, before rxvt-unicode does 507Called wheneever the window loses keyboard focus, before rxvt-unicode does
407focus out processing. 508focus out processing.
408 509
510=item on_configure_notify $term, $event
511
512=item on_property_notify $term, $event
513
409=item on_key_press $term, $event, $keysym, $octets 514=item on_key_press $term, $event, $keysym, $octets
410 515
411=item on_key_release $term, $event, $keysym 516=item on_key_release $term, $event, $keysym
412 517
413=item on_button_press $term, $event 518=item on_button_press $term, $event
422 527
423Called whenever the corresponding X event is received for the terminal If 528Called whenever the corresponding X event is received for the terminal If
424the hook returns true, then the even will be ignored by rxvt-unicode. 529the hook returns true, then the even will be ignored by rxvt-unicode.
425 530
426The event is a hash with most values as named by Xlib (see the XEvent 531The event is a hash with most values as named by Xlib (see the XEvent
427manpage), with the additional members C<row> and C<col>, which are the row 532manpage), with the additional members C<row> and C<col>, which are the
428and column under the mouse cursor. 533(real, not screen-based) row and column under the mouse cursor.
429 534
430C<on_key_press> additionally receives the string rxvt-unicode would 535C<on_key_press> additionally receives the string rxvt-unicode would
431output, if any, in locale-specific encoding. 536output, if any, in locale-specific encoding.
432 537
433subwindow. 538subwindow.
539
540=item on_client_message $term, $event
541
542=item on_wm_protocols $term, $event
543
544=item on_wm_delete_window $term, $event
545
546Called when various types of ClientMessage events are received (all with
547format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
434 548
435=back 549=back
436 550
437=cut 551=cut
438 552
444use Scalar::Util (); 558use Scalar::Util ();
445use List::Util (); 559use List::Util ();
446 560
447our $VERSION = 1; 561our $VERSION = 1;
448our $TERM; 562our $TERM;
563our @TERM_INIT;
564our @TERM_EXT;
449our @HOOKNAME; 565our @HOOKNAME;
450our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 566our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
451our %OPTION; 567our %OPTION;
452 568
453our $LIBDIR; 569our $LIBDIR;
454our $RESNAME; 570our $RESNAME;
455our $RESCLASS; 571our $RESCLASS;
456our $RXVTNAME; 572our $RXVTNAME;
457 573
574our $NOCHAR = chr 0xffff;
575
458=head2 Variables in the C<urxvt> Package 576=head2 Variables in the C<urxvt> Package
459 577
460=over 4 578=over 4
461 579
462=item $urxvt::LIBDIR 580=item $urxvt::LIBDIR
474 592
475=item $urxvt::TERM 593=item $urxvt::TERM
476 594
477The current terminal. This variable stores the current C<urxvt::term> 595The current terminal. This variable stores the current C<urxvt::term>
478object, whenever a callback/hook is executing. 596object, whenever a callback/hook is executing.
597
598=item @urxvt::TERM_INIT
599
600All coderefs in this array will be called as methods of the next newly
601created C<urxvt::term> object (during the C<on_init> phase). The array
602gets cleared before the codereferences that were in it are being executed,
603so coderefs can push themselves onto it again if they so desire.
604
605This complements to the perl-eval commandline option, but gets executed
606first.
607
608=item @urxvt::TERM_EXT
609
610Works similar to C<@TERM_INIT>, but contains perl package/class names, which
611get registered as normal extensions after calling the hooks in C<@TERM_INIT>
612but before other extensions. Gets cleared just like C<@TERM_INIT>.
479 613
480=back 614=back
481 615
482=head2 Functions in the C<urxvt> Package 616=head2 Functions in the C<urxvt> Package
483 617
497 631
498Using this function has the advantage that its output ends up in the 632Using this function has the advantage that its output ends up in the
499correct place, e.g. on stderr of the connecting urxvtc client. 633correct place, e.g. on stderr of the connecting urxvtc client.
500 634
501Messages have a size limit of 1023 bytes currently. 635Messages have a size limit of 1023 bytes currently.
502
503=item $is_safe = urxvt::safe
504
505Returns true when it is safe to do potentially unsafe things, such as
506evaluating perl code specified by the user. This is true when urxvt was
507started setuid or setgid.
508 636
509=item $time = urxvt::NOW 637=item $time = urxvt::NOW
510 638
511Returns the "current time" (as per the event loop). 639Returns the "current time" (as per the event loop).
512 640
589=back 717=back
590 718
591=cut 719=cut
592 720
593BEGIN { 721BEGIN {
594 urxvt->bootstrap;
595
596 # overwrite perl's warn 722 # overwrite perl's warn
597 *CORE::GLOBAL::warn = sub { 723 *CORE::GLOBAL::warn = sub {
598 my $msg = join "", @_; 724 my $msg = join "", @_;
599 $msg .= "\n" 725 $msg .= "\n"
600 unless $msg =~ /\n$/; 726 unless $msg =~ /\n$/;
601 urxvt::warn ($msg); 727 urxvt::warn ($msg);
602 }; 728 };
603
604 # %ENV is the original startup environment
605 delete $ENV{IFS};
606 delete $ENV{CDPATH};
607 delete $ENV{BASH_ENV};
608 $ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
609} 729}
730
731no warnings 'utf8';
610 732
611my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 733my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
612 734
613sub verbose { 735sub verbose {
614 my ($level, $msg) = @_; 736 my ($level, $msg) = @_;
615 warn "$msg\n" if $level <= $verbosity; 737 warn "$msg\n" if $level <= $verbosity;
616} 738}
617 739
618my $extension_pkg = "extension0000";
619my %extension_pkg; 740my %extension_pkg;
620 741
621# load a single script into its own package, once only 742# load a single script into its own package, once only
622sub extension_package($) { 743sub extension_package($) {
623 my ($path) = @_; 744 my ($path) = @_;
624 745
625 $extension_pkg{$path} ||= do { 746 $extension_pkg{$path} ||= do {
626 my $pkg = "urxvt::" . ($extension_pkg++); 747 $path =~ /([^\/\\]+)$/;
748 my $pkg = $1;
749 $pkg =~ s/[^[:word:]]/_/g;
750 $pkg = "urxvt::ext::$pkg";
627 751
628 verbose 3, "loading extension '$path' into package '$pkg'"; 752 verbose 3, "loading extension '$path' into package '$pkg'";
629 753
630 open my $fh, "<:raw", $path 754 open my $fh, "<:raw", $path
631 or die "$path: $!"; 755 or die "$path: $!";
632 756
633 my $source = untaint 757 my $source =
634 "package $pkg; use strict; use utf8;\n" 758 "package $pkg; use strict; use utf8; no warnings 'utf8';\n"
635 . "use base urxvt::term::extension::;\n"
636 . "#line 1 \"$path\"\n{\n" 759 . "#line 1 \"$path\"\n{\n"
637 . (do { local $/; <$fh> }) 760 . (do { local $/; <$fh> })
638 . "\n};\n1"; 761 . "\n};\n1";
639 762
640 eval $source 763 eval $source
654 if ($htype == 0) { # INIT 777 if ($htype == 0) { # INIT
655 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 778 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
656 779
657 my %ext_arg; 780 my %ext_arg;
658 781
782 {
783 my @init = @TERM_INIT;
784 @TERM_INIT = ();
785 $_->($TERM) for @init;
786 my @pkg = @TERM_EXT;
787 @TERM_EXT = ();
788 $TERM->register_package ($_) for @pkg;
789 }
790
659 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 791 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
660 if ($_ eq "default") { 792 if ($_ eq "default") {
661 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); 793 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
662 } elsif (/^-(.*)$/) { 794 } elsif (/^-(.*)$/) {
663 delete $ext_arg{$1}; 795 delete $ext_arg{$1};
664 } elsif (/^([^<]+)<(.*)>$/) { 796 } elsif (/^([^<]+)<(.*)>$/) {
665 push @{ $ext_arg{$1} }, $2; 797 push @{ $ext_arg{$1} }, $2;
666 } else { 798 } else {
689 if $verbosity >= 10; 821 if $verbosity >= 10;
690 822
691 keys %$cb; 823 keys %$cb;
692 824
693 while (my ($pkg, $cb) = each %$cb) { 825 while (my ($pkg, $cb) = each %$cb) {
694 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) } 826 my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
695 and last; 827 $retval ||= $retval_;
696 828
697 if ($@) { 829 if ($@) {
698 $TERM->ungrab; # better to lose the grab than the session 830 $TERM->ungrab; # better to lose the grab than the session
699 warn $@; 831 warn $@;
700 } 832 }
711 # clear package 843 # clear package
712 %$TERM = (); 844 %$TERM = ();
713 } 845 }
714 846
715 $retval 847 $retval
716}
717
718sub exec_async(@) {
719 my $pid = fork;
720
721 return
722 if !defined $pid or $pid;
723
724 %ENV = %{ $TERM->env };
725
726 exec @_;
727 _exit 255;
728} 848}
729 849
730# urxvt::term::extension 850# urxvt::term::extension
731 851
732package urxvt::term::extension; 852package urxvt::term::extension;
871# find on_xxx subs in the package and register them 991# find on_xxx subs in the package and register them
872# as hooks 992# as hooks
873sub register_package { 993sub register_package {
874 my ($self, $pkg, $argv) = @_; 994 my ($self, $pkg, $argv) = @_;
875 995
996 no strict 'refs';
997
998 urxvt::verbose 6, "register package $pkg to $self";
999
1000 @{"$pkg\::ISA"} = urxvt::term::extension::;
1001
876 my $proxy = bless { 1002 my $proxy = bless {
877 _pkg => $pkg, 1003 _pkg => $pkg,
878 argv => $argv, 1004 argv => $argv,
879 }, $pkg; 1005 }, $pkg;
880 Scalar::Util::weaken ($proxy->{term} = $self); 1006 Scalar::Util::weaken ($proxy->{term} = $self);
911 1037
912Destroy the terminal object (close the window, free resources 1038Destroy the terminal object (close the window, free resources
913etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event 1039etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
914watchers (timers, io watchers) are still active. 1040watchers (timers, io watchers) are still active.
915 1041
1042=item $term->exec_async ($cmd[, @args])
1043
1044Works like the combination of the C<fork>/C<exec> builtins, which executes
1045("starts") programs in the background. This function takes care of setting
1046the user environment before exec'ing the command (e.g. C<PATH>) and should
1047be preferred over explicit calls to C<exec> or C<system>.
1048
1049Returns the pid of the subprocess or C<undef> on error.
1050
1051=cut
1052
1053sub exec_async {
1054 my $self = shift;
1055
1056 my $pid = fork;
1057
1058 return $pid
1059 if !defined $pid or $pid;
1060
1061 %ENV = %{ $self->env };
1062
1063 exec @_;
1064 urxvt::_exit 255;
1065}
1066
916=item $isset = $term->option ($optval[, $set]) 1067=item $isset = $term->option ($optval[, $set])
917 1068
918Returns true if the option specified by C<$optval> is enabled, and 1069Returns true if the option specified by C<$optval> is enabled, and
919optionally change it. All option values are stored by name in the hash 1070optionally change it. All option values are stored by name in the hash
920C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash. 1071C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
922Here is a a likely non-exhaustive list of option names, please see the 1073Here is a a likely non-exhaustive list of option names, please see the
923source file F</src/optinc.h> to see the actual list: 1074source file F</src/optinc.h> to see the actual list:
924 1075
925 borderLess console cursorBlink cursorUnderline hold iconic insecure 1076 borderLess console cursorBlink cursorUnderline hold iconic insecure
926 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage 1077 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
927 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating 1078 override-redirect pastableTabs pointerBlank reverseVideo scrollBar
928 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer 1079 scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
929 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent 1080 scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
930 tripleclickwords utmpInhibit visualBell 1081 transparent tripleclickwords utmpInhibit visualBell
931 1082
932=item $value = $term->resource ($name[, $newval]) 1083=item $value = $term->resource ($name[, $newval])
933 1084
934Returns the current resource value associated with a given name and 1085Returns the current resource value associated with a given name and
935optionally sets a new value. Setting values is most useful in the C<init> 1086optionally sets a new value. Setting values is most useful in the C<init>
952 1103
953 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 1104 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
954 borderLess color cursorBlink cursorUnderline cutchars delete_key 1105 borderLess color cursorBlink cursorUnderline cutchars delete_key
955 display_name embed ext_bwidth fade font geometry hold iconName 1106 display_name embed ext_bwidth fade font geometry hold iconName
956 imFont imLocale inputMethod insecure int_bwidth intensityStyles 1107 imFont imLocale inputMethod insecure int_bwidth intensityStyles
957 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 1108 italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
958 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2 1109 mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
959 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 1110 perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
960 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 1111 preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
961 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 1112 scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
962 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 1113 scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
963 shade term_name title transparent transparent_all tripleclickwords 1114 secondaryScreen secondaryScroll selectstyle shade term_name title
964 utmpInhibit visualBell 1115 transient_for transparent transparent_all tripleclickwords utmpInhibit
1116 visualBell
965 1117
966=cut 1118=cut
967 1119
968sub resource($$;$) { 1120sub resource($$;$) {
969 my ($self, $name) = (shift, shift); 1121 my ($self, $name) = (shift, shift);
1143 1295
1144Normally its not a good idea to use this function, as programs might be 1296Normally its not a good idea to use this function, as programs might be
1145confused by changes in cursor position or scrolling. Its useful inside a 1297confused by changes in cursor position or scrolling. Its useful inside a
1146C<on_add_lines> hook, though. 1298C<on_add_lines> hook, though.
1147 1299
1300=item $term->scr_change_screen ($screen)
1301
1302Switch to given screen - 0 primary, 1 secondary.
1303
1148=item $term->cmd_parse ($octets) 1304=item $term->cmd_parse ($octets)
1149 1305
1150Similar to C<scr_add_lines>, but the argument must be in the 1306Similar to C<scr_add_lines>, but the argument must be in the
1151locale-specific encoding of the terminal and can contain command sequences 1307locale-specific encoding of the terminal and can contain command sequences
1152(escape codes) that will be interpreted. 1308(escape codes) that will be interpreted.
1161 1317
1162Replaces the event mask of the pty watcher by the given event mask. Can 1318Replaces the event mask of the pty watcher by the given event mask. Can
1163be used to suppress input and output handling to the pty/tty. See the 1319be used to suppress input and output handling to the pty/tty. See the
1164description of C<< urxvt::timer->events >>. Make sure to always restore 1320description of C<< urxvt::timer->events >>. Make sure to always restore
1165the previous value. 1321the previous value.
1322
1323=item $fd = $term->pty_fd
1324
1325Returns the master file descriptor for the pty in use, or C<-1> if no pty
1326is used.
1166 1327
1167=item $windowid = $term->parent 1328=item $windowid = $term->parent
1168 1329
1169Return the window id of the toplevel window. 1330Return the window id of the toplevel window.
1170 1331
1235=item $modifiermask = $term->ModNumLockMask 1396=item $modifiermask = $term->ModNumLockMask
1236 1397
1237Return the modifier masks corresponding to the "ISO Level 3 Shift" (often 1398Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1238AltGr), the meta key (often Alt) and the num lock key, if applicable. 1399AltGr), the meta key (often Alt) and the num lock key, if applicable.
1239 1400
1401=item $screen = $term->current_screen
1402
1403Returns the currently displayed screen (0 primary, 1 secondary).
1404
1405=item $cursor_is_hidden = $term->hidden_cursor
1406
1407Returns wether the cursor is currently hidden or not.
1408
1240=item $view_start = $term->view_start ([$newvalue]) 1409=item $view_start = $term->view_start ([$newvalue])
1241 1410
1242Returns the row number of the topmost displayed line. Maximum value is 1411Returns the row number of the topmost displayed line. Maximum value is
1243C<0>, which displays the normal terminal contents. Lower values scroll 1412C<0>, which displays the normal terminal contents. Lower values scroll
1244this many lines into the scrollback buffer. 1413this many lines into the scrollback buffer.
1263line, starting at column C<$start_col> (default C<0>), which is useful 1432line, starting at column C<$start_col> (default C<0>), which is useful
1264to replace only parts of a line. The font index in the rendition will 1433to replace only parts of a line. The font index in the rendition will
1265automatically be updated. 1434automatically be updated.
1266 1435
1267C<$text> is in a special encoding: tabs and wide characters that use more 1436C<$text> is in a special encoding: tabs and wide characters that use more
1268than one cell when displayed are padded with urxvt::NOCHAR characters 1437than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
1269(C<chr 65535>). Characters with combining characters and other characters 1438characters. Characters with combining characters and other characters that
1270that do not fit into the normal tetx encoding will be replaced with 1439do not fit into the normal tetx encoding will be replaced with characters
1271characters in the private use area. 1440in the private use area.
1272 1441
1273You have to obey this encoding when changing text. The advantage is 1442You have to obey this encoding when changing text. The advantage is
1274that C<substr> and similar functions work on screen cells and not on 1443that C<substr> and similar functions work on screen cells and not on
1275characters. 1444characters.
1276 1445
1451 1620
1452Calls XUngrab for the most recent grab. Is called automatically on 1621Calls XUngrab for the most recent grab. Is called automatically on
1453evaluation errors, as it is better to lose the grab in the error case as 1622evaluation errors, as it is better to lose the grab in the error case as
1454the session. 1623the session.
1455 1624
1625=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
1626
1627=item $atom_name = $term->XGetAtomName ($atom)
1628
1629=item @atoms = $term->XListProperties ($window)
1630
1631=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
1632
1633=item $term->XChangeWindowProperty ($window, $property, $type, $format, $octets)
1634
1635=item $term->XDeleteProperty ($window, $property)
1636
1637=item $window = $term->DefaultRootWindow
1638
1639=item $term->XReparentWindow ($window, $parent, [$x, $y])
1640
1641=item $term->XMapWindow ($window)
1642
1643=item $term->XUnmapWindow ($window)
1644
1645=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
1646
1647=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
1648
1649=item $term->XChangeInput ($window, $add_events[, $del_events])
1650
1651Various X or X-related functions. The C<$term> object only serves as
1652the source of the display, otherwise those functions map more-or-less
1653directory onto the X functions of the same name.
1654
1456=back 1655=back
1457 1656
1458=cut 1657=cut
1459 1658
1460package urxvt::popup; 1659package urxvt::popup;
1561 my $env = $self->{term}->env; 1760 my $env = $self->{term}->env;
1562 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE. 1761 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1563 delete $env->{LC_ALL}; 1762 delete $env->{LC_ALL};
1564 $env->{LC_CTYPE} = $self->{term}->locale; 1763 $env->{LC_CTYPE} = $self->{term}->locale;
1565 1764
1566 urxvt::term->new ($env, $self->{term}->resource ("name"), 1765 urxvt::term->new ($env, "popup",
1567 "--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0, 1766 "--perl-lib" => "", "--perl-ext-common" => "",
1767 "-pty-fd" => -1, "-sl" => 0,
1768 "-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1568 "--transient-for" => $self->{term}->parent, 1769 "--transient-for" => $self->{term}->parent,
1569 "-display" => $self->{term}->display_id, 1770 "-display" => $self->{term}->display_id,
1570 "-pe" => "urxvt-popup") 1771 "-pe" => "urxvt-popup")
1571 or die "unable to create popup window\n"; 1772 or die "unable to create popup window\n";
1572} 1773}
1577 delete $self->{term}{_destroy}{$self}; 1778 delete $self->{term}{_destroy}{$self};
1578 $self->{term}->ungrab; 1779 $self->{term}->ungrab;
1579} 1780}
1580 1781
1581=back 1782=back
1783
1784=cut
1785
1786package urxvt::watcher;
1787
1788@urxvt::timer::ISA = __PACKAGE__;
1789@urxvt::iow::ISA = __PACKAGE__;
1790@urxvt::pw::ISA = __PACKAGE__;
1791@urxvt::iw::ISA = __PACKAGE__;
1582 1792
1583=head2 The C<urxvt::timer> Class 1793=head2 The C<urxvt::timer> Class
1584 1794
1585This class implements timer watchers/events. Time is represented as a 1795This class implements timer watchers/events. Time is represented as a
1586fractional number of seconds since the epoch. Example: 1796fractional number of seconds since the epoch. Example:
1624Start the timer. 1834Start the timer.
1625 1835
1626=item $timer = $timer->start ($tstamp) 1836=item $timer = $timer->start ($tstamp)
1627 1837
1628Set the event trigger time to C<$tstamp> and start the timer. 1838Set the event trigger time to C<$tstamp> and start the timer.
1839
1840=item $timer = $timer->after ($delay)
1841
1842Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1629 1843
1630=item $timer = $timer->stop 1844=item $timer = $timer->stop
1631 1845
1632Stop the timer. 1846Stop the timer.
1633 1847
1680 1894
1681Stop watching for events on the given filehandle. 1895Stop watching for events on the given filehandle.
1682 1896
1683=back 1897=back
1684 1898
1899=head2 The C<urxvt::iw> Class
1900
1901This class implements idle watchers, that get called automatically when
1902the process is idle. They should return as fast as possible, after doing
1903some useful work.
1904
1905=over 4
1906
1907=item $iw = new urxvt::iw
1908
1909Create a new idle watcher object in stopped state.
1910
1911=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
1912
1913Set the callback to be called when the watcher triggers.
1914
1915=item $timer = $timer->start
1916
1917Start the watcher.
1918
1919=item $timer = $timer->stop
1920
1921Stop the watcher.
1922
1923=back
1924
1925=head2 The C<urxvt::pw> Class
1926
1927This class implements process watchers. They create an event whenever a
1928process exits, after which they stop automatically.
1929
1930 my $pid = fork;
1931 ...
1932 $term->{pw} = urxvt::pw
1933 ->new
1934 ->start ($pid)
1935 ->cb (sub {
1936 my ($pw, $exit_status) = @_;
1937 ...
1938 });
1939
1940=over 4
1941
1942=item $pw = new urxvt::pw
1943
1944Create a new process watcher in stopped state.
1945
1946=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
1947
1948Set the callback to be called when the timer triggers.
1949
1950=item $pw = $timer->start ($pid)
1951
1952Tells the wqtcher to start watching for process C<$pid>.
1953
1954=item $pw = $pw->stop
1955
1956Stop the watcher.
1957
1958=back
1959
1685=head1 ENVIRONMENT 1960=head1 ENVIRONMENT
1686 1961
1687=head2 URXVT_PERL_VERBOSITY 1962=head2 URXVT_PERL_VERBOSITY
1688 1963
1689This variable controls the verbosity level of the perl extension. Higher 1964This variable controls the verbosity level of the perl extension. Higher

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