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Comparing rxvt-unicode/src/urxvt.pm (file contents):
Revision 1.107 by root, Wed Jan 18 21:30:50 2006 UTC vs.
Revision 1.114 by root, Fri Jan 20 12:16:28 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
89 93
90Binds a popup menu to Ctrl-Button3 that lets you convert the selection 94Binds a popup menu to Ctrl-Button3 that lets you convert the selection
91text into various other formats/action (such as uri unescaping, perl 95text into various other formats/action (such as uri unescaping, perl
92evalution, web-browser starting etc.), depending on content. 96evalution, web-browser starting etc.), depending on content.
93 97
94Other extensions can extend this popup menu by pushing a code reference onto 98Other 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. 99onto C<@{ $term->{selection_popup_hook} }>, that is called whenever the
100popup is displayed.
96 101
97It's sole argument is the popup menu, which can be modified. The selection 102It's sole argument is the popup menu, which can be modified. The selection
98is in C<$_>, which can be used to decide wether to add something or not. 103is 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 104It 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 105string will be used as button text and the code reference will be called
102 107
103The following will add an entry C<a to b> that transforms all C<a>s in 108The 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 109the selection to C<b>s, but only if the selection currently contains any
105C<a>s: 110C<a>s:
106 111
107 push urxvt::ext::selection_popup::hook, sub { 112 push @{ $self->{term}{selection_popup_hook} }, sub {
108 /a/ ? ("a to be" => sub { s/a/b/g } 113 /a/ ? ("a to be" => sub { s/a/b/g }
109 : () 114 : ()
110 }; 115 };
111 116
112=item searchable-scrollback<hotkey> (enabled by default) 117=item searchable-scrollback<hotkey> (enabled by default)
143 URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/ 148 URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
144 149
145And this example matches the same,but replaces it with vi-commands you can 150And this example matches the same,but replaces it with vi-commands you can
146paste directly into your (vi :) editor: 151paste directly into your (vi :) editor:
147 152
148 URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/\\x1b:e \\Q$1\\E\\x0d:$2\\x0d/ 153 URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
149 154
150Of course, this can be modified to suit your needs and your editor :) 155Of course, this can be modified to suit your needs and your editor :)
151 156
152To expand the example above to typical perl error messages ("XXX at 157To expand the example above to typical perl error messages ("XXX at
153FILENAME line YYY."), you need a slightly more elaborate solution: 158FILENAME line YYY."), you need a slightly more elaborate solution:
154 159
155 URxvt.selection.pattern-0: ( at .*? line \\d+\\.) 160 URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
156 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)\\.$/\x1b:e \\Q$1\E\\x0d:$2\\x0d/ 161 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
157 162
158The first line tells the selection code to treat the unchanging part of 163The first line tells the selection code to treat the unchanging part of
159every error message as a selection pattern, and the second line transforms 164every error message as a selection pattern, and the second line transforms
160the message into vi commands to load the file. 165the message into vi commands to load the file.
161 166
298called whenever the relevant event happens. 303called whenever the relevant event happens.
299 304
300The first argument passed to them is an extension oject as described in 305The first argument passed to them is an extension oject as described in
301the in the C<Extension Objects> section. 306the in the C<Extension Objects> section.
302 307
303B<All> of these hooks must return a boolean value. If it is true, then the 308B<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 309hooks 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. 310relevant action might not be carried out by the C++ code.
306 311
307I<< When in doubt, return a false value (preferably C<()>). >> 312I<< When in doubt, return a false value (preferably C<()>). >>
308 313
309=over 4 314=over 4
310 315
311=item on_init $term 316=item on_init $term
312 317
313Called after a new terminal object has been initialized, but before 318Called after a new terminal object has been initialized, but before
314windows are created or the command gets run. Most methods are unsafe to 319windows are created or the command gets run. Most methods are unsafe to
315call or deliver senseless data, as terminal size and other characteristics 320call or deliver senseless data, as terminal size and other characteristics
316have not yet been determined. You can safely query and change resources, 321have not yet been determined. You can safely query and change resources
317though. 322and options, though. For many purposes the C<on_start> hook is a better
323place.
324
325=item on_start $term
326
327Called at the very end of initialisation of a new terminal, just before
328trying to map (display) the toplevel and returning to the mainloop.
329
330=item on_destroy $term
331
332Called whenever something tries to destroy terminal, before doing anything
333yet. If this hook returns true, then destruction is skipped, but this is
334rarely a good idea.
318 335
319=item on_reset $term 336=item on_reset $term
320 337
321Called after the screen is "reset" for any reason, such as resizing or 338Called 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 339control sequences. Here is where you can react on changes to size-related
323variables. 340variables.
324 341
325=item on_start $term 342=item on_child_start $term, $pid
326 343
327Called at the very end of initialisation of a new terminal, just before 344Called just after the child process has been C<fork>ed.
328returning to the mainloop. 345
346=item on_child_exit $term, $status
347
348Called just after the child process has exited. C<$status> is the status
349from C<waitpid>.
329 350
330=item on_sel_make $term, $eventtime 351=item on_sel_make $term, $eventtime
331 352
332Called whenever a selection has been made by the user, but before the 353Called 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 354selection text is copied, so changes to the beginning, end or type of the
470C<on_key_press> additionally receives the string rxvt-unicode would 491C<on_key_press> additionally receives the string rxvt-unicode would
471output, if any, in locale-specific encoding. 492output, if any, in locale-specific encoding.
472 493
473subwindow. 494subwindow.
474 495
496=item on_client_message $term, $event
497
498=item on_wm_protocols $term, $event
499
500=item on_wm_delete_window $term, $event
501
502Called when various types of ClientMessage events are received (all with
503format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
504
475=back 505=back
476 506
477=cut 507=cut
478 508
479package urxvt; 509package urxvt;
484use Scalar::Util (); 514use Scalar::Util ();
485use List::Util (); 515use List::Util ();
486 516
487our $VERSION = 1; 517our $VERSION = 1;
488our $TERM; 518our $TERM;
519our @TERM_INIT;
520our @TERM_EXT;
489our @HOOKNAME; 521our @HOOKNAME;
490our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 522our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
491our %OPTION; 523our %OPTION;
492 524
493our $LIBDIR; 525our $LIBDIR;
514 546
515=item $urxvt::TERM 547=item $urxvt::TERM
516 548
517The current terminal. This variable stores the current C<urxvt::term> 549The current terminal. This variable stores the current C<urxvt::term>
518object, whenever a callback/hook is executing. 550object, whenever a callback/hook is executing.
551
552=item @urxvt::TERM_INIT
553
554All coderefs in this array will be called as methods of the next newly
555created C<urxvt::term> object (during the C<on_init> phase). The array
556gets cleared before the codereferences that were in it are being executed,
557so coderefs can push themselves onto it again if they so desire.
558
559This complements to the perl-eval commandline option, but gets executed
560first.
561
562=item @urxvt::TERM_EXT
563
564Works similar to C<@TERM_INIT>, but contains perl package/class names, which
565get registered as normal extensions after calling the hooks in C<@TERM_INIT>
566but before other extensions. Gets cleared just like C<@TERM_INIT>.
519 567
520=back 568=back
521 569
522=head2 Functions in the C<urxvt> Package 570=head2 Functions in the C<urxvt> Package
523 571
645 693
646# load a single script into its own package, once only 694# load a single script into its own package, once only
647sub extension_package($) { 695sub extension_package($) {
648 my ($path) = @_; 696 my ($path) = @_;
649 697
650 no strict 'refs';
651
652 $extension_pkg{$path} ||= do { 698 $extension_pkg{$path} ||= do {
653 $path =~ /([^\/\\]+)$/; 699 $path =~ /([^\/\\]+)$/;
654 my $pkg = $1; 700 my $pkg = $1;
655 $pkg =~ s/[^[:word:]]/_/g; 701 $pkg =~ s/[^[:word:]]/_/g;
656 $pkg = "urxvt::ext::$pkg"; 702 $pkg = "urxvt::ext::$pkg";
658 verbose 3, "loading extension '$path' into package '$pkg'"; 704 verbose 3, "loading extension '$path' into package '$pkg'";
659 705
660 open my $fh, "<:raw", $path 706 open my $fh, "<:raw", $path
661 or die "$path: $!"; 707 or die "$path: $!";
662 708
663 @{"$pkg\::ISA"} = urxvt::term::extension::;
664
665 my $source = 709 my $source =
666 "package $pkg; use strict; use utf8;\n" 710 "package $pkg; use strict; use utf8;\n"
667 . "#line 1 \"$path\"\n{\n" 711 . "#line 1 \"$path\"\n{\n"
668 . (do { local $/; <$fh> }) 712 . (do { local $/; <$fh> })
669 . "\n};\n1"; 713 . "\n};\n1";
685 if ($htype == 0) { # INIT 729 if ($htype == 0) { # INIT
686 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 730 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
687 731
688 my %ext_arg; 732 my %ext_arg;
689 733
734 {
735 my @init = @TERM_INIT;
736 @TERM_INIT = ();
737 $_->($TERM) for @init;
738 my @pkg = @TERM_EXT;
739 @TERM_EXT = ();
740 $TERM->register_package ($_) for @pkg;
741 }
742
690 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 743 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
691 if ($_ eq "default") { 744 if ($_ eq "default") {
692 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); 745 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback);
693 } elsif (/^-(.*)$/) { 746 } elsif (/^-(.*)$/) {
694 delete $ext_arg{$1}; 747 delete $ext_arg{$1};
695 } elsif (/^([^<]+)<(.*)>$/) { 748 } elsif (/^([^<]+)<(.*)>$/) {
720 if $verbosity >= 10; 773 if $verbosity >= 10;
721 774
722 keys %$cb; 775 keys %$cb;
723 776
724 while (my ($pkg, $cb) = each %$cb) { 777 while (my ($pkg, $cb) = each %$cb) {
725 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) } 778 my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
726 and last; 779 $retval ||= $retval_;
727 780
728 if ($@) { 781 if ($@) {
729 $TERM->ungrab; # better to lose the grab than the session 782 $TERM->ungrab; # better to lose the grab than the session
730 warn $@; 783 warn $@;
731 } 784 }
742 # clear package 795 # clear package
743 %$TERM = (); 796 %$TERM = ();
744 } 797 }
745 798
746 $retval 799 $retval
747}
748
749sub exec_async(@) {
750 my $pid = fork;
751
752 return
753 if !defined $pid or $pid;
754
755 %ENV = %{ $TERM->env };
756
757 exec @_;
758 _exit 255;
759} 800}
760 801
761# urxvt::term::extension 802# urxvt::term::extension
762 803
763package urxvt::term::extension; 804package urxvt::term::extension;
902# find on_xxx subs in the package and register them 943# find on_xxx subs in the package and register them
903# as hooks 944# as hooks
904sub register_package { 945sub register_package {
905 my ($self, $pkg, $argv) = @_; 946 my ($self, $pkg, $argv) = @_;
906 947
948 no strict 'refs';
949
950 urxvt::verbose 6, "register package $pkg to $self";
951
952 @{"$pkg\::ISA"} = urxvt::term::extension::;
953
907 my $proxy = bless { 954 my $proxy = bless {
908 _pkg => $pkg, 955 _pkg => $pkg,
909 argv => $argv, 956 argv => $argv,
910 }, $pkg; 957 }, $pkg;
911 Scalar::Util::weaken ($proxy->{term} = $self); 958 Scalar::Util::weaken ($proxy->{term} = $self);
941=item $term->destroy 988=item $term->destroy
942 989
943Destroy the terminal object (close the window, free resources 990Destroy the terminal object (close the window, free resources
944etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event 991etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
945watchers (timers, io watchers) are still active. 992watchers (timers, io watchers) are still active.
993
994=item $term->exec_async ($cmd[, @args])
995
996Works like the combination of the C<fork>/C<exec> builtins, which executes
997("starts") programs in the background. This function takes care of setting
998the user environment before exec'ing the command (e.g. C<PATH>) and should
999be preferred over explicit calls to C<exec> or C<system>.
1000
1001Returns the pid of the subprocess or C<undef> on error.
1002
1003=cut
1004
1005sub exec_async {
1006 my $self = shift;
1007
1008 my $pid = fork;
1009
1010 return $pid
1011 if !defined $pid or $pid;
1012
1013 %ENV = %{ $self->env };
1014
1015 exec @_;
1016 urxvt::_exit 255;
1017}
946 1018
947=item $isset = $term->option ($optval[, $set]) 1019=item $isset = $term->option ($optval[, $set])
948 1020
949Returns true if the option specified by C<$optval> is enabled, and 1021Returns true if the option specified by C<$optval> is enabled, and
950optionally change it. All option values are stored by name in the hash 1022optionally change it. All option values are stored by name in the hash
1612 $self->{term}->ungrab; 1684 $self->{term}->ungrab;
1613} 1685}
1614 1686
1615=back 1687=back
1616 1688
1689=cut
1690
1691package urxvt::watcher;
1692
1693@urxvt::timer::ISA = __PACKAGE__;
1694@urxvt::iow::ISA = __PACKAGE__;
1695@urxvt::pw::ISA = __PACKAGE__;
1696@urxvt::iw::ISA = __PACKAGE__;
1697
1617=head2 The C<urxvt::timer> Class 1698=head2 The C<urxvt::timer> Class
1618 1699
1619This class implements timer watchers/events. Time is represented as a 1700This class implements timer watchers/events. Time is represented as a
1620fractional number of seconds since the epoch. Example: 1701fractional number of seconds since the epoch. Example:
1621 1702
1718 1799
1719Stop watching for events on the given filehandle. 1800Stop watching for events on the given filehandle.
1720 1801
1721=back 1802=back
1722 1803
1804=head2 The C<urxvt::iw> Class
1805
1806This class implements idle watchers, that get called automatically when
1807the process is idle. They should return as fast as possible, after doing
1808some useful work.
1809
1810=over 4
1811
1812=item $iw = new urxvt::iw
1813
1814Create a new idle watcher object in stopped state.
1815
1816=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
1817
1818Set the callback to be called when the watcher triggers.
1819
1820=item $timer = $timer->start
1821
1822Start the watcher.
1823
1824=item $timer = $timer->stop
1825
1826Stop the watcher.
1827
1828=back
1829
1830=head2 The C<urxvt::pw> Class
1831
1832This class implements process watchers. They create an event whenever a
1833process exits, after which they stop automatically.
1834
1835 my $pid = fork;
1836 ...
1837 $term->{pw} = urxvt::pw
1838 ->new
1839 ->start ($pid)
1840 ->cb (sub {
1841 my ($pw, $exit_status) = @_;
1842 ...
1843 });
1844
1845=over 4
1846
1847=item $pw = new urxvt::pw
1848
1849Create a new process watcher in stopped state.
1850
1851=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
1852
1853Set the callback to be called when the timer triggers.
1854
1855=item $pw = $timer->start ($pid)
1856
1857Tells the wqtcher to start watching for process C<$pid>.
1858
1859=item $pw = $pw->stop
1860
1861Stop the watcher.
1862
1863=back
1864
1723=head1 ENVIRONMENT 1865=head1 ENVIRONMENT
1724 1866
1725=head2 URXVT_PERL_VERBOSITY 1867=head2 URXVT_PERL_VERBOSITY
1726 1868
1727This variable controls the verbosity level of the perl extension. Higher 1869This variable controls the verbosity level of the perl extension. Higher

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