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Revision 1.105 by root, Wed Jan 18 19:43:51 2006 UTC vs.
Revision 1.130 by root, Wed Jan 25 15:32:48 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
87 98
88=item selection-popup (enabled by default) 99=item selection-popup (enabled by default)
89 100
90Binds 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
91text into various other formats/action (such as uri unescaping, perl 102text into various other formats/action (such as uri unescaping, perl
92evalution, web-browser starting etc.), depending on content. 103evaluation, web-browser starting etc.), depending on content.
93 104
94Other extensions can extend this popup menu by pushing a code reference onto 105Other extensions can extend this popup menu by pushing a code reference
95C<@urxvt::ext::selection_popup::hook>, that is called whenever the popup is displayed. 106onto C<@{ $term->{selection_popup_hook} }>, that is called whenever the
107popup is displayed.
96 108
97It's sole argument is the popup menu, which can be modified. The selection 109It's sole argument is the popup menu, which can be modified. The selection
98is in C<$_>, which can be used to decide wether to add something or not. 110is in C<$_>, which can be used to decide wether to add something or not.
99It should either return nothing or a string and a code reference. The 111It should either return nothing or a string and a code reference. The
100string will be used as button text and the code reference will be called 112string will be used as button text and the code reference will be called
102 114
103The following will add an entry C<a to b> that transforms all C<a>s in 115The following will add an entry C<a to b> that transforms all C<a>s in
104the selection to C<b>s, but only if the selection currently contains any 116the selection to C<b>s, but only if the selection currently contains any
105C<a>s: 117C<a>s:
106 118
107 push urxvt::ext::selection_popup::hook, sub { 119 push @{ $self->{term}{selection_popup_hook} }, sub {
108 /a/ ? ("a to be" => sub { s/a/b/g } 120 /a/ ? ("a to be" => sub { s/a/b/g }
109 : () 121 : ()
110 }; 122 };
111 123
112=item searchable-scrollback<hotkey> (enabled by default) 124=item searchable-scrollback<hotkey> (enabled by default)
122bottom. 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
123was 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
124additionally stores the first match in the current line into the primary 136additionally stores the first match in the current line into the primary
125selection. 137selection.
126 138
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
127=item selection-autotransform 164=item selection-autotransform
128 165
129This selection allows you to do automatic transforms on a selection 166This selection allows you to do automatic transforms on a selection
130whenever a selection is made. 167whenever a selection is made.
131 168
143 URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/ 180 URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
144 181
145And this example matches the same,but replaces it with vi-commands you can 182And this example matches the same,but replaces it with vi-commands you can
146paste directly into your (vi :) editor: 183paste directly into your (vi :) editor:
147 184
148 URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/\\x1b:e \\Q$1\\E\\x0d:$2\\x0d/ 185 URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
149 186
150Of course, this can be modified to suit your needs and your editor :) 187Of course, this can be modified to suit your needs and your editor :)
151 188
152To expand the example above to typical perl error messages ("XXX at 189To expand the example above to typical perl error messages ("XXX at
153FILENAME line YYY."), you need a slightly more elaborate solution: 190FILENAME line YYY."), you need a slightly more elaborate solution:
154 191
155 URxvt.selection.pattern-0: ( at .*? line \\d+\\.) 192 URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
156 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)\\.$/\x1b:e \\Q$1\E\\x0d:$2\\x0d/ 193 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
157 194
158The 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
159every error message as a selection pattern, and the second line transforms 196every error message as a selection pattern, and the second line transforms
160the 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.
161 209
162=item mark-urls 210=item mark-urls
163 211
164Uses 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
165make them clickable. When middle-clicked, the program specified in the 213make them clickable. When middle-clicked, the program specified in the
166resource C<urlLauncher> (default C<x-www-browser>) will be started with 214resource C<urlLauncher> (default C<x-www-browser>) will be started with
167the URL as first argument. 215the URL as first argument.
168 216
217=item xim-onthespot
218
219This (experimental) perl extension implements OnTheSpot editing. It does
220not work perfectly, and some input methods don't seem to work well with
221OnTheSpot editing in general, but it seems to work at leats for SCIM and
222kinput2.
223
224You enable it by specifying this extension and a preedit style of
225C<OnTheSpot>, i.e.:
226
227 @@RXVT_NAME@@ -pt OnTheSpot -pe xim-onthespot
228
169=item automove-background 229=item automove-background
170 230
171This is basically a one-line extension that dynamically changes the background pixmap offset 231This is basically a one-line extension that dynamically changes the background pixmap offset
172to the window position, in effect creating the same effect as pseudo transparency with 232to the window position, in effect creating the same effect as pseudo transparency with
173a custom pixmap. No scaling is supported in this mode. Exmaple: 233a custom pixmap. No scaling is supported in this mode. Exmaple:
182 242
183=item digital-clock 243=item digital-clock
184 244
185Displays a digital clock using the built-in overlay. 245Displays a digital clock using the built-in overlay.
186 246
187=item example-refresh-hooks 247=item remote-clipboard
188 248
189Displays a very simple digital clock in the upper right corner of the 249Somewhat of a misnomer, this extension adds two menu entries to the
190window. Illustrates overwriting the refresh callbacks to create your own 250selection popup that allows one ti run external commands to store the
191overlays or changes. 251selection somewhere and fetch it again.
252
253We use it to implement a "distributed selection mechanism", which just
254means that one command uploads the file to a remote server, and another
255reads it.
256
257The commands can be set using the C<URxvt.remote-selection.store> and
258C<URxvt.remote-selection.fetch> resources. The first should read the
259selection to store from STDIN (always in UTF-8), the second should provide
260the selection data on STDOUT (also in UTF-8).
261
262The defaults (which are likely useless to you) use rsh and cat:
263
264 URxvt.remote-selection.store: rsh ruth 'cat >/tmp/distributed-selection'
265 URxvt.remote-selection.fetch: rsh ruth 'cat /tmp/distributed-selection'
192 266
193=item selection-pastebin 267=item selection-pastebin
194 268
195This is a little rarely useful extension that Uploads the selection as 269This is a little rarely useful extension that Uploads the selection as
196textfile to a remote site (or does other things). (The implementation is 270textfile to a remote site (or does other things). (The implementation is
216After a successful upload the selection will be replaced by the text given 290After a successful upload the selection will be replaced by the text given
217in the C<selection-pastebin-url> resource (again, the % is the placeholder 291in the C<selection-pastebin-url> resource (again, the % is the placeholder
218for the filename): 292for the filename):
219 293
220 URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/% 294 URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
295
296=item example-refresh-hooks
297
298Displays a very simple digital clock in the upper right corner of the
299window. Illustrates overwriting the refresh callbacks to create your own
300overlays or changes.
221 301
222=back 302=back
223 303
224=head1 API DOCUMENTATION 304=head1 API DOCUMENTATION
225 305
298called whenever the relevant event happens. 378called whenever the relevant event happens.
299 379
300The first argument passed to them is an extension oject as described in 380The first argument passed to them is an extension oject as described in
301the in the C<Extension Objects> section. 381the in the C<Extension Objects> section.
302 382
303B<All> of these hooks must return a boolean value. If it is true, then the 383B<All> of these hooks must return a boolean value. If any of the called
304event counts as being I<consumed>, and the invocation of other hooks is 384hooks returns true, then the event counts as being I<consumed>, and the
305skipped, and the relevant action might not be carried out by the C++ code. 385relevant action might not be carried out by the C++ code.
306 386
307I<< When in doubt, return a false value (preferably C<()>). >> 387I<< When in doubt, return a false value (preferably C<()>). >>
308 388
309=over 4 389=over 4
310 390
311=item on_init $term 391=item on_init $term
312 392
313Called after a new terminal object has been initialized, but before 393Called after a new terminal object has been initialized, but before
314windows are created or the command gets run. Most methods are unsafe to 394windows are created or the command gets run. Most methods are unsafe to
315call or deliver senseless data, as terminal size and other characteristics 395call or deliver senseless data, as terminal size and other characteristics
316have not yet been determined. You can safely query and change resources, 396have not yet been determined. You can safely query and change resources
317though. 397and options, though. For many purposes the C<on_start> hook is a better
398place.
399
400=item on_start $term
401
402Called at the very end of initialisation of a new terminal, just before
403trying to map (display) the toplevel and returning to the mainloop.
404
405=item on_destroy $term
406
407Called whenever something tries to destroy terminal, when the terminal is
408still fully functional (not for long, though).
318 409
319=item on_reset $term 410=item on_reset $term
320 411
321Called after the screen is "reset" for any reason, such as resizing or 412Called after the screen is "reset" for any reason, such as resizing or
322control sequences. Here is where you can react on changes to size-related 413control sequences. Here is where you can react on changes to size-related
323variables. 414variables.
324 415
325=item on_start $term 416=item on_child_start $term, $pid
326 417
327Called at the very end of initialisation of a new terminal, just before 418Called just after the child process has been C<fork>ed.
328returning to the mainloop. 419
420=item on_child_exit $term, $status
421
422Called just after the child process has exited. C<$status> is the status
423from C<waitpid>.
329 424
330=item on_sel_make $term, $eventtime 425=item on_sel_make $term, $eventtime
331 426
332Called whenever a selection has been made by the user, but before the 427Called whenever a selection has been made by the user, but before the
333selection text is copied, so changes to the beginning, end or type of the 428selection text is copied, so changes to the beginning, end or type of the
420 515
421=item on_refresh_end $term 516=item on_refresh_end $term
422 517
423Called just after the screen gets redrawn. See C<on_refresh_begin>. 518Called just after the screen gets redrawn. See C<on_refresh_begin>.
424 519
425=item on_keyboard_command $term, $string 520=item on_user_command $term, $string
426 521
427Called whenever the user presses a key combination that has a 522Called whenever the a user-configured event is being activated (e.g. via
428C<perl:string> action bound to it (see description of the B<keysym> 523a C<perl:string> action bound to a key, see description of the B<keysym>
429resource in the @@RXVT_NAME@@(1) manpage). 524resource in the @@RXVT_NAME@@(1) manpage).
525
526The event is simply the action string. This interface is assumed to change
527slightly in the future.
430 528
431=item on_x_event $term, $event 529=item on_x_event $term, $event
432 530
433Called on every X event received on the vt window (and possibly other 531Called on every X event received on the vt window (and possibly other
434windows). Should only be used as a last resort. Most event structure 532windows). Should only be used as a last resort. Most event structure
444Called wheneever the window loses keyboard focus, before rxvt-unicode does 542Called wheneever the window loses keyboard focus, before rxvt-unicode does
445focus out processing. 543focus out processing.
446 544
447=item on_configure_notify $term, $event 545=item on_configure_notify $term, $event
448 546
547=item on_property_notify $term, $event
548
449=item on_key_press $term, $event, $keysym, $octets 549=item on_key_press $term, $event, $keysym, $octets
450 550
451=item on_key_release $term, $event, $keysym 551=item on_key_release $term, $event, $keysym
452 552
453=item on_button_press $term, $event 553=item on_button_press $term, $event
462 562
463Called whenever the corresponding X event is received for the terminal If 563Called whenever the corresponding X event is received for the terminal If
464the hook returns true, then the even will be ignored by rxvt-unicode. 564the hook returns true, then the even will be ignored by rxvt-unicode.
465 565
466The event is a hash with most values as named by Xlib (see the XEvent 566The event is a hash with most values as named by Xlib (see the XEvent
467manpage), with the additional members C<row> and C<col>, which are the row 567manpage), with the additional members C<row> and C<col>, which are the
468and column under the mouse cursor. 568(real, not screen-based) row and column under the mouse cursor.
469 569
470C<on_key_press> additionally receives the string rxvt-unicode would 570C<on_key_press> additionally receives the string rxvt-unicode would
471output, if any, in locale-specific encoding. 571output, if any, in locale-specific encoding.
472 572
473subwindow. 573subwindow.
574
575=item on_client_message $term, $event
576
577=item on_wm_protocols $term, $event
578
579=item on_wm_delete_window $term, $event
580
581Called when various types of ClientMessage events are received (all with
582format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
474 583
475=back 584=back
476 585
477=cut 586=cut
478 587
484use Scalar::Util (); 593use Scalar::Util ();
485use List::Util (); 594use List::Util ();
486 595
487our $VERSION = 1; 596our $VERSION = 1;
488our $TERM; 597our $TERM;
598our @TERM_INIT;
599our @TERM_EXT;
489our @HOOKNAME; 600our @HOOKNAME;
490our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 601our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
491our %OPTION; 602our %OPTION;
492 603
493our $LIBDIR; 604our $LIBDIR;
494our $RESNAME; 605our $RESNAME;
495our $RESCLASS; 606our $RESCLASS;
496our $RXVTNAME; 607our $RXVTNAME;
497 608
609our $NOCHAR = chr 0xffff;
610
498=head2 Variables in the C<urxvt> Package 611=head2 Variables in the C<urxvt> Package
499 612
500=over 4 613=over 4
501 614
502=item $urxvt::LIBDIR 615=item $urxvt::LIBDIR
514 627
515=item $urxvt::TERM 628=item $urxvt::TERM
516 629
517The current terminal. This variable stores the current C<urxvt::term> 630The current terminal. This variable stores the current C<urxvt::term>
518object, whenever a callback/hook is executing. 631object, whenever a callback/hook is executing.
632
633=item @urxvt::TERM_INIT
634
635All coderefs in this array will be called as methods of the next newly
636created C<urxvt::term> object (during the C<on_init> phase). The array
637gets cleared before the codereferences that were in it are being executed,
638so coderefs can push themselves onto it again if they so desire.
639
640This complements to the perl-eval commandline option, but gets executed
641first.
642
643=item @urxvt::TERM_EXT
644
645Works similar to C<@TERM_INIT>, but contains perl package/class names, which
646get registered as normal extensions after calling the hooks in C<@TERM_INIT>
647but before other extensions. Gets cleared just like C<@TERM_INIT>.
519 648
520=back 649=back
521 650
522=head2 Functions in the C<urxvt> Package 651=head2 Functions in the C<urxvt> Package
523 652
630 my $msg = join "", @_; 759 my $msg = join "", @_;
631 $msg .= "\n" 760 $msg .= "\n"
632 unless $msg =~ /\n$/; 761 unless $msg =~ /\n$/;
633 urxvt::warn ($msg); 762 urxvt::warn ($msg);
634 }; 763 };
635
636 # %ENV is the original startup environment
637 delete $ENV{IFS};
638 delete $ENV{CDPATH};
639 delete $ENV{BASH_ENV};
640 $ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
641} 764}
765
766no warnings 'utf8';
642 767
643my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 768my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
644 769
645sub verbose { 770sub verbose {
646 my ($level, $msg) = @_; 771 my ($level, $msg) = @_;
650my %extension_pkg; 775my %extension_pkg;
651 776
652# load a single script into its own package, once only 777# load a single script into its own package, once only
653sub extension_package($) { 778sub extension_package($) {
654 my ($path) = @_; 779 my ($path) = @_;
655
656 no strict 'refs';
657 780
658 $extension_pkg{$path} ||= do { 781 $extension_pkg{$path} ||= do {
659 $path =~ /([^\/\\]+)$/; 782 $path =~ /([^\/\\]+)$/;
660 my $pkg = $1; 783 my $pkg = $1;
661 $pkg =~ s/[^[:word:]]/_/g; 784 $pkg =~ s/[^[:word:]]/_/g;
664 verbose 3, "loading extension '$path' into package '$pkg'"; 787 verbose 3, "loading extension '$path' into package '$pkg'";
665 788
666 open my $fh, "<:raw", $path 789 open my $fh, "<:raw", $path
667 or die "$path: $!"; 790 or die "$path: $!";
668 791
669 @{"$pkg\::ISA"} = urxvt::term::extension::;
670
671 my $source = 792 my $source =
672 "package $pkg; use strict; use utf8;\n" 793 "package $pkg; use strict; use utf8; no warnings 'utf8';\n"
673 . "#line 1 \"$path\"\n{\n" 794 . "#line 1 \"$path\"\n{\n"
674 . (do { local $/; <$fh> }) 795 . (do { local $/; <$fh> })
675 . "\n};\n1"; 796 . "\n};\n1";
676 797
677 eval $source 798 eval $source
691 if ($htype == 0) { # INIT 812 if ($htype == 0) { # INIT
692 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 813 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
693 814
694 my %ext_arg; 815 my %ext_arg;
695 816
817 {
818 my @init = @TERM_INIT;
819 @TERM_INIT = ();
820 $_->($TERM) for @init;
821 my @pkg = @TERM_EXT;
822 @TERM_EXT = ();
823 $TERM->register_package ($_) for @pkg;
824 }
825
696 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 826 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
697 if ($_ eq "default") { 827 if ($_ eq "default") {
698 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); 828 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
699 } elsif (/^-(.*)$/) { 829 } elsif (/^-(.*)$/) {
700 delete $ext_arg{$1}; 830 delete $ext_arg{$1};
701 } elsif (/^([^<]+)<(.*)>$/) { 831 } elsif (/^([^<]+)<(.*)>$/) {
702 push @{ $ext_arg{$1} }, $2; 832 push @{ $ext_arg{$1} }, $2;
703 } else { 833 } else {
726 if $verbosity >= 10; 856 if $verbosity >= 10;
727 857
728 keys %$cb; 858 keys %$cb;
729 859
730 while (my ($pkg, $cb) = each %$cb) { 860 while (my ($pkg, $cb) = each %$cb) {
731 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) } 861 my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
732 and last; 862 $retval ||= $retval_;
733 863
734 if ($@) { 864 if ($@) {
735 $TERM->ungrab; # better to lose the grab than the session 865 $TERM->ungrab; # better to lose the grab than the session
736 warn $@; 866 warn $@;
737 } 867 }
748 # clear package 878 # clear package
749 %$TERM = (); 879 %$TERM = ();
750 } 880 }
751 881
752 $retval 882 $retval
753}
754
755sub exec_async(@) {
756 my $pid = fork;
757
758 return
759 if !defined $pid or $pid;
760
761 %ENV = %{ $TERM->env };
762
763 exec @_;
764 _exit 255;
765} 883}
766 884
767# urxvt::term::extension 885# urxvt::term::extension
768 886
769package urxvt::term::extension; 887package urxvt::term::extension;
908# find on_xxx subs in the package and register them 1026# find on_xxx subs in the package and register them
909# as hooks 1027# as hooks
910sub register_package { 1028sub register_package {
911 my ($self, $pkg, $argv) = @_; 1029 my ($self, $pkg, $argv) = @_;
912 1030
1031 no strict 'refs';
1032
1033 urxvt::verbose 6, "register package $pkg to $self";
1034
1035 @{"$pkg\::ISA"} = urxvt::term::extension::;
1036
913 my $proxy = bless { 1037 my $proxy = bless {
914 _pkg => $pkg, 1038 _pkg => $pkg,
915 argv => $argv, 1039 argv => $argv,
916 }, $pkg; 1040 }, $pkg;
917 Scalar::Util::weaken ($proxy->{term} = $self); 1041 Scalar::Util::weaken ($proxy->{term} = $self);
947=item $term->destroy 1071=item $term->destroy
948 1072
949Destroy the terminal object (close the window, free resources 1073Destroy the terminal object (close the window, free resources
950etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event 1074etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
951watchers (timers, io watchers) are still active. 1075watchers (timers, io watchers) are still active.
1076
1077=item $term->exec_async ($cmd[, @args])
1078
1079Works like the combination of the C<fork>/C<exec> builtins, which executes
1080("starts") programs in the background. This function takes care of setting
1081the user environment before exec'ing the command (e.g. C<PATH>) and should
1082be preferred over explicit calls to C<exec> or C<system>.
1083
1084Returns the pid of the subprocess or C<undef> on error.
1085
1086=cut
1087
1088sub exec_async {
1089 my $self = shift;
1090
1091 my $pid = fork;
1092
1093 return $pid
1094 if !defined $pid or $pid;
1095
1096 %ENV = %{ $self->env };
1097
1098 exec @_;
1099 urxvt::_exit 255;
1100}
952 1101
953=item $isset = $term->option ($optval[, $set]) 1102=item $isset = $term->option ($optval[, $set])
954 1103
955Returns true if the option specified by C<$optval> is enabled, and 1104Returns true if the option specified by C<$optval> is enabled, and
956optionally change it. All option values are stored by name in the hash 1105optionally change it. All option values are stored by name in the hash
1181 1330
1182Normally its not a good idea to use this function, as programs might be 1331Normally its not a good idea to use this function, as programs might be
1183confused by changes in cursor position or scrolling. Its useful inside a 1332confused by changes in cursor position or scrolling. Its useful inside a
1184C<on_add_lines> hook, though. 1333C<on_add_lines> hook, though.
1185 1334
1335=item $term->scr_change_screen ($screen)
1336
1337Switch to given screen - 0 primary, 1 secondary.
1338
1186=item $term->cmd_parse ($octets) 1339=item $term->cmd_parse ($octets)
1187 1340
1188Similar to C<scr_add_lines>, but the argument must be in the 1341Similar to C<scr_add_lines>, but the argument must be in the
1189locale-specific encoding of the terminal and can contain command sequences 1342locale-specific encoding of the terminal and can contain command sequences
1190(escape codes) that will be interpreted. 1343(escape codes) that will be interpreted.
1199 1352
1200Replaces the event mask of the pty watcher by the given event mask. Can 1353Replaces the event mask of the pty watcher by the given event mask. Can
1201be used to suppress input and output handling to the pty/tty. See the 1354be used to suppress input and output handling to the pty/tty. See the
1202description of C<< urxvt::timer->events >>. Make sure to always restore 1355description of C<< urxvt::timer->events >>. Make sure to always restore
1203the previous value. 1356the previous value.
1357
1358=item $fd = $term->pty_fd
1359
1360Returns the master file descriptor for the pty in use, or C<-1> if no pty
1361is used.
1204 1362
1205=item $windowid = $term->parent 1363=item $windowid = $term->parent
1206 1364
1207Return the window id of the toplevel window. 1365Return the window id of the toplevel window.
1208 1366
1273=item $modifiermask = $term->ModNumLockMask 1431=item $modifiermask = $term->ModNumLockMask
1274 1432
1275Return the modifier masks corresponding to the "ISO Level 3 Shift" (often 1433Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1276AltGr), the meta key (often Alt) and the num lock key, if applicable. 1434AltGr), the meta key (often Alt) and the num lock key, if applicable.
1277 1435
1436=item $screen = $term->current_screen
1437
1438Returns the currently displayed screen (0 primary, 1 secondary).
1439
1440=item $cursor_is_hidden = $term->hidden_cursor
1441
1442Returns wether the cursor is currently hidden or not.
1443
1278=item $view_start = $term->view_start ([$newvalue]) 1444=item $view_start = $term->view_start ([$newvalue])
1279 1445
1280Returns the row number of the topmost displayed line. Maximum value is 1446Returns the row number of the topmost displayed line. Maximum value is
1281C<0>, which displays the normal terminal contents. Lower values scroll 1447C<0>, which displays the normal terminal contents. Lower values scroll
1282this many lines into the scrollback buffer. 1448this many lines into the scrollback buffer.
1301line, starting at column C<$start_col> (default C<0>), which is useful 1467line, starting at column C<$start_col> (default C<0>), which is useful
1302to replace only parts of a line. The font index in the rendition will 1468to replace only parts of a line. The font index in the rendition will
1303automatically be updated. 1469automatically be updated.
1304 1470
1305C<$text> is in a special encoding: tabs and wide characters that use more 1471C<$text> is in a special encoding: tabs and wide characters that use more
1306than one cell when displayed are padded with urxvt::NOCHAR characters 1472than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
1307(C<chr 65535>). Characters with combining characters and other characters 1473characters. Characters with combining characters and other characters that
1308that do not fit into the normal tetx encoding will be replaced with 1474do not fit into the normal tetx encoding will be replaced with characters
1309characters in the private use area. 1475in the private use area.
1310 1476
1311You have to obey this encoding when changing text. The advantage is 1477You have to obey this encoding when changing text. The advantage is
1312that C<substr> and similar functions work on screen cells and not on 1478that C<substr> and similar functions work on screen cells and not on
1313characters. 1479characters.
1314 1480
1489 1655
1490Calls XUngrab for the most recent grab. Is called automatically on 1656Calls XUngrab for the most recent grab. Is called automatically on
1491evaluation errors, as it is better to lose the grab in the error case as 1657evaluation errors, as it is better to lose the grab in the error case as
1492the session. 1658the session.
1493 1659
1660=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
1661
1662=item $atom_name = $term->XGetAtomName ($atom)
1663
1664=item @atoms = $term->XListProperties ($window)
1665
1666=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
1667
1668=item $term->XChangeWindowProperty ($window, $property, $type, $format, $octets)
1669
1670=item $term->XDeleteProperty ($window, $property)
1671
1672=item $window = $term->DefaultRootWindow
1673
1674=item $term->XReparentWindow ($window, $parent, [$x, $y])
1675
1676=item $term->XMapWindow ($window)
1677
1678=item $term->XUnmapWindow ($window)
1679
1680=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
1681
1682=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
1683
1684=item $term->XChangeInput ($window, $add_events[, $del_events])
1685
1686Various X or X-related functions. The C<$term> object only serves as
1687the source of the display, otherwise those functions map more-or-less
1688directory onto the X functions of the same name.
1689
1494=back 1690=back
1495 1691
1496=cut 1692=cut
1497 1693
1498package urxvt::popup; 1694package urxvt::popup;
1601 delete $env->{LC_ALL}; 1797 delete $env->{LC_ALL};
1602 $env->{LC_CTYPE} = $self->{term}->locale; 1798 $env->{LC_CTYPE} = $self->{term}->locale;
1603 1799
1604 urxvt::term->new ($env, "popup", 1800 urxvt::term->new ($env, "popup",
1605 "--perl-lib" => "", "--perl-ext-common" => "", 1801 "--perl-lib" => "", "--perl-ext-common" => "",
1802 "-pty-fd" => -1, "-sl" => 0,
1606 "-pty-fd" => -1, "-sl" => 0, "-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect", 1803 "-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1607 "--transient-for" => $self->{term}->parent, 1804 "--transient-for" => $self->{term}->parent,
1608 "-display" => $self->{term}->display_id, 1805 "-display" => $self->{term}->display_id,
1609 "-pe" => "urxvt-popup") 1806 "-pe" => "urxvt-popup")
1610 or die "unable to create popup window\n"; 1807 or die "unable to create popup window\n";
1611} 1808}
1616 delete $self->{term}{_destroy}{$self}; 1813 delete $self->{term}{_destroy}{$self};
1617 $self->{term}->ungrab; 1814 $self->{term}->ungrab;
1618} 1815}
1619 1816
1620=back 1817=back
1818
1819=cut
1820
1821package urxvt::watcher;
1822
1823@urxvt::timer::ISA = __PACKAGE__;
1824@urxvt::iow::ISA = __PACKAGE__;
1825@urxvt::pw::ISA = __PACKAGE__;
1826@urxvt::iw::ISA = __PACKAGE__;
1621 1827
1622=head2 The C<urxvt::timer> Class 1828=head2 The C<urxvt::timer> Class
1623 1829
1624This class implements timer watchers/events. Time is represented as a 1830This class implements timer watchers/events. Time is represented as a
1625fractional number of seconds since the epoch. Example: 1831fractional number of seconds since the epoch. Example:
1723 1929
1724Stop watching for events on the given filehandle. 1930Stop watching for events on the given filehandle.
1725 1931
1726=back 1932=back
1727 1933
1934=head2 The C<urxvt::iw> Class
1935
1936This class implements idle watchers, that get called automatically when
1937the process is idle. They should return as fast as possible, after doing
1938some useful work.
1939
1940=over 4
1941
1942=item $iw = new urxvt::iw
1943
1944Create a new idle watcher object in stopped state.
1945
1946=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
1947
1948Set the callback to be called when the watcher triggers.
1949
1950=item $timer = $timer->start
1951
1952Start the watcher.
1953
1954=item $timer = $timer->stop
1955
1956Stop the watcher.
1957
1958=back
1959
1960=head2 The C<urxvt::pw> Class
1961
1962This class implements process watchers. They create an event whenever a
1963process exits, after which they stop automatically.
1964
1965 my $pid = fork;
1966 ...
1967 $term->{pw} = urxvt::pw
1968 ->new
1969 ->start ($pid)
1970 ->cb (sub {
1971 my ($pw, $exit_status) = @_;
1972 ...
1973 });
1974
1975=over 4
1976
1977=item $pw = new urxvt::pw
1978
1979Create a new process watcher in stopped state.
1980
1981=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
1982
1983Set the callback to be called when the timer triggers.
1984
1985=item $pw = $timer->start ($pid)
1986
1987Tells the wqtcher to start watching for process C<$pid>.
1988
1989=item $pw = $pw->stop
1990
1991Stop the watcher.
1992
1993=back
1994
1728=head1 ENVIRONMENT 1995=head1 ENVIRONMENT
1729 1996
1730=head2 URXVT_PERL_VERBOSITY 1997=head2 URXVT_PERL_VERBOSITY
1731 1998
1732This variable controls the verbosity level of the perl extension. Higher 1999This variable controls the verbosity level of the perl extension. Higher

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