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Revision 1.107 by root, Wed Jan 18 21:30:50 2006 UTC vs.
Revision 1.120 by root, Fri Jan 20 22:05:41 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
87 91
88=item selection-popup (enabled by default) 92=item selection-popup (enabled by default)
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. 96evaluation, 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.
166
167=item tabbed
168
169This transforms the terminal into a tabbar with additional terminals, that
170is, it implements what is commonly refered to as "tabbed terminal". The topmost line
171displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
172button per tab.
173
174Clicking a button will activate that tab. Pressing B<Shift-Left> and
175B<Shift-Right> will switch to the tab left or right of the current one,
176while B<Shift-Down> creates a new tab.
161 177
162=item mark-urls 178=item mark-urls
163 179
164Uses per-line display filtering (C<on_line_update>) to underline urls and 180Uses per-line display filtering (C<on_line_update>) to underline urls and
165make them clickable. When middle-clicked, the program specified in the 181make them clickable. When middle-clicked, the program specified in the
298called whenever the relevant event happens. 314called whenever the relevant event happens.
299 315
300The first argument passed to them is an extension oject as described in 316The first argument passed to them is an extension oject as described in
301the in the C<Extension Objects> section. 317the in the C<Extension Objects> section.
302 318
303B<All> of these hooks must return a boolean value. If it is true, then the 319B<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 320hooks 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. 321relevant action might not be carried out by the C++ code.
306 322
307I<< When in doubt, return a false value (preferably C<()>). >> 323I<< When in doubt, return a false value (preferably C<()>). >>
308 324
309=over 4 325=over 4
310 326
311=item on_init $term 327=item on_init $term
312 328
313Called after a new terminal object has been initialized, but before 329Called after a new terminal object has been initialized, but before
314windows are created or the command gets run. Most methods are unsafe to 330windows are created or the command gets run. Most methods are unsafe to
315call or deliver senseless data, as terminal size and other characteristics 331call or deliver senseless data, as terminal size and other characteristics
316have not yet been determined. You can safely query and change resources, 332have not yet been determined. You can safely query and change resources
317though. 333and options, though. For many purposes the C<on_start> hook is a better
334place.
335
336=item on_start $term
337
338Called at the very end of initialisation of a new terminal, just before
339trying to map (display) the toplevel and returning to the mainloop.
340
341=item on_destroy $term
342
343Called whenever something tries to destroy terminal, before doing anything
344yet. If this hook returns true, then destruction is skipped, but this is
345rarely a good idea.
318 346
319=item on_reset $term 347=item on_reset $term
320 348
321Called after the screen is "reset" for any reason, such as resizing or 349Called 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 350control sequences. Here is where you can react on changes to size-related
323variables. 351variables.
324 352
325=item on_start $term 353=item on_child_start $term, $pid
326 354
327Called at the very end of initialisation of a new terminal, just before 355Called just after the child process has been C<fork>ed.
328returning to the mainloop. 356
357=item on_child_exit $term, $status
358
359Called just after the child process has exited. C<$status> is the status
360from C<waitpid>.
329 361
330=item on_sel_make $term, $eventtime 362=item on_sel_make $term, $eventtime
331 363
332Called whenever a selection has been made by the user, but before the 364Called 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 365selection text is copied, so changes to the beginning, end or type of the
444Called wheneever the window loses keyboard focus, before rxvt-unicode does 476Called wheneever the window loses keyboard focus, before rxvt-unicode does
445focus out processing. 477focus out processing.
446 478
447=item on_configure_notify $term, $event 479=item on_configure_notify $term, $event
448 480
481=item on_property_notify $term, $event
482
449=item on_key_press $term, $event, $keysym, $octets 483=item on_key_press $term, $event, $keysym, $octets
450 484
451=item on_key_release $term, $event, $keysym 485=item on_key_release $term, $event, $keysym
452 486
453=item on_button_press $term, $event 487=item on_button_press $term, $event
462 496
463Called whenever the corresponding X event is received for the terminal If 497Called whenever the corresponding X event is received for the terminal If
464the hook returns true, then the even will be ignored by rxvt-unicode. 498the hook returns true, then the even will be ignored by rxvt-unicode.
465 499
466The event is a hash with most values as named by Xlib (see the XEvent 500The 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 501manpage), with the additional members C<row> and C<col>, which are the
468and column under the mouse cursor. 502(real, not screen-based) row and column under the mouse cursor.
469 503
470C<on_key_press> additionally receives the string rxvt-unicode would 504C<on_key_press> additionally receives the string rxvt-unicode would
471output, if any, in locale-specific encoding. 505output, if any, in locale-specific encoding.
472 506
473subwindow. 507subwindow.
508
509=item on_client_message $term, $event
510
511=item on_wm_protocols $term, $event
512
513=item on_wm_delete_window $term, $event
514
515Called when various types of ClientMessage events are received (all with
516format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
474 517
475=back 518=back
476 519
477=cut 520=cut
478 521
484use Scalar::Util (); 527use Scalar::Util ();
485use List::Util (); 528use List::Util ();
486 529
487our $VERSION = 1; 530our $VERSION = 1;
488our $TERM; 531our $TERM;
532our @TERM_INIT;
533our @TERM_EXT;
489our @HOOKNAME; 534our @HOOKNAME;
490our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 535our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
491our %OPTION; 536our %OPTION;
492 537
493our $LIBDIR; 538our $LIBDIR;
514 559
515=item $urxvt::TERM 560=item $urxvt::TERM
516 561
517The current terminal. This variable stores the current C<urxvt::term> 562The current terminal. This variable stores the current C<urxvt::term>
518object, whenever a callback/hook is executing. 563object, whenever a callback/hook is executing.
564
565=item @urxvt::TERM_INIT
566
567All coderefs in this array will be called as methods of the next newly
568created C<urxvt::term> object (during the C<on_init> phase). The array
569gets cleared before the codereferences that were in it are being executed,
570so coderefs can push themselves onto it again if they so desire.
571
572This complements to the perl-eval commandline option, but gets executed
573first.
574
575=item @urxvt::TERM_EXT
576
577Works similar to C<@TERM_INIT>, but contains perl package/class names, which
578get registered as normal extensions after calling the hooks in C<@TERM_INIT>
579but before other extensions. Gets cleared just like C<@TERM_INIT>.
519 580
520=back 581=back
521 582
522=head2 Functions in the C<urxvt> Package 583=head2 Functions in the C<urxvt> Package
523 584
645 706
646# load a single script into its own package, once only 707# load a single script into its own package, once only
647sub extension_package($) { 708sub extension_package($) {
648 my ($path) = @_; 709 my ($path) = @_;
649 710
650 no strict 'refs';
651
652 $extension_pkg{$path} ||= do { 711 $extension_pkg{$path} ||= do {
653 $path =~ /([^\/\\]+)$/; 712 $path =~ /([^\/\\]+)$/;
654 my $pkg = $1; 713 my $pkg = $1;
655 $pkg =~ s/[^[:word:]]/_/g; 714 $pkg =~ s/[^[:word:]]/_/g;
656 $pkg = "urxvt::ext::$pkg"; 715 $pkg = "urxvt::ext::$pkg";
658 verbose 3, "loading extension '$path' into package '$pkg'"; 717 verbose 3, "loading extension '$path' into package '$pkg'";
659 718
660 open my $fh, "<:raw", $path 719 open my $fh, "<:raw", $path
661 or die "$path: $!"; 720 or die "$path: $!";
662 721
663 @{"$pkg\::ISA"} = urxvt::term::extension::;
664
665 my $source = 722 my $source =
666 "package $pkg; use strict; use utf8;\n" 723 "package $pkg; use strict; use utf8;\n"
667 . "#line 1 \"$path\"\n{\n" 724 . "#line 1 \"$path\"\n{\n"
668 . (do { local $/; <$fh> }) 725 . (do { local $/; <$fh> })
669 . "\n};\n1"; 726 . "\n};\n1";
685 if ($htype == 0) { # INIT 742 if ($htype == 0) { # INIT
686 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 743 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
687 744
688 my %ext_arg; 745 my %ext_arg;
689 746
747 {
748 my @init = @TERM_INIT;
749 @TERM_INIT = ();
750 $_->($TERM) for @init;
751 my @pkg = @TERM_EXT;
752 @TERM_EXT = ();
753 $TERM->register_package ($_) for @pkg;
754 }
755
690 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 756 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
691 if ($_ eq "default") { 757 if ($_ eq "default") {
692 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); 758 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback);
693 } elsif (/^-(.*)$/) { 759 } elsif (/^-(.*)$/) {
694 delete $ext_arg{$1}; 760 delete $ext_arg{$1};
695 } elsif (/^([^<]+)<(.*)>$/) { 761 } elsif (/^([^<]+)<(.*)>$/) {
720 if $verbosity >= 10; 786 if $verbosity >= 10;
721 787
722 keys %$cb; 788 keys %$cb;
723 789
724 while (my ($pkg, $cb) = each %$cb) { 790 while (my ($pkg, $cb) = each %$cb) {
725 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) } 791 my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
726 and last; 792 $retval ||= $retval_;
727 793
728 if ($@) { 794 if ($@) {
729 $TERM->ungrab; # better to lose the grab than the session 795 $TERM->ungrab; # better to lose the grab than the session
730 warn $@; 796 warn $@;
731 } 797 }
742 # clear package 808 # clear package
743 %$TERM = (); 809 %$TERM = ();
744 } 810 }
745 811
746 $retval 812 $retval
747}
748
749sub exec_async(@) {
750 my $pid = fork;
751
752 return
753 if !defined $pid or $pid;
754
755 %ENV = %{ $TERM->env };
756
757 exec @_;
758 _exit 255;
759} 813}
760 814
761# urxvt::term::extension 815# urxvt::term::extension
762 816
763package urxvt::term::extension; 817package urxvt::term::extension;
902# find on_xxx subs in the package and register them 956# find on_xxx subs in the package and register them
903# as hooks 957# as hooks
904sub register_package { 958sub register_package {
905 my ($self, $pkg, $argv) = @_; 959 my ($self, $pkg, $argv) = @_;
906 960
961 no strict 'refs';
962
963 urxvt::verbose 6, "register package $pkg to $self";
964
965 @{"$pkg\::ISA"} = urxvt::term::extension::;
966
907 my $proxy = bless { 967 my $proxy = bless {
908 _pkg => $pkg, 968 _pkg => $pkg,
909 argv => $argv, 969 argv => $argv,
910 }, $pkg; 970 }, $pkg;
911 Scalar::Util::weaken ($proxy->{term} = $self); 971 Scalar::Util::weaken ($proxy->{term} = $self);
941=item $term->destroy 1001=item $term->destroy
942 1002
943Destroy the terminal object (close the window, free resources 1003Destroy the terminal object (close the window, free resources
944etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event 1004etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
945watchers (timers, io watchers) are still active. 1005watchers (timers, io watchers) are still active.
1006
1007=item $term->exec_async ($cmd[, @args])
1008
1009Works like the combination of the C<fork>/C<exec> builtins, which executes
1010("starts") programs in the background. This function takes care of setting
1011the user environment before exec'ing the command (e.g. C<PATH>) and should
1012be preferred over explicit calls to C<exec> or C<system>.
1013
1014Returns the pid of the subprocess or C<undef> on error.
1015
1016=cut
1017
1018sub exec_async {
1019 my $self = shift;
1020
1021 my $pid = fork;
1022
1023 return $pid
1024 if !defined $pid or $pid;
1025
1026 %ENV = %{ $self->env };
1027
1028 exec @_;
1029 urxvt::_exit 255;
1030}
946 1031
947=item $isset = $term->option ($optval[, $set]) 1032=item $isset = $term->option ($optval[, $set])
948 1033
949Returns true if the option specified by C<$optval> is enabled, and 1034Returns true if the option specified by C<$optval> is enabled, and
950optionally change it. All option values are stored by name in the hash 1035optionally change it. All option values are stored by name in the hash
1483 1568
1484Calls XUngrab for the most recent grab. Is called automatically on 1569Calls XUngrab for the most recent grab. Is called automatically on
1485evaluation errors, as it is better to lose the grab in the error case as 1570evaluation errors, as it is better to lose the grab in the error case as
1486the session. 1571the session.
1487 1572
1573=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
1574
1575=item $atom_name = $term->XGetAtomName ($atom)
1576
1577=item @atoms = $term->XListProperties ($window)
1578
1579=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
1580
1581=item $term->XChangeWindowProperty ($window, $property, $type, $format, $octets)
1582
1583=item $term->XDeleteProperty ($window, $property)
1584
1585=item $window = $term->DefaultRootWindow
1586
1587=item $term->XReparentWindow ($window, $parent, [$x, $y])
1588
1589=item $term->XMapWindow ($window)
1590
1591=item $term->XUnmapWindow ($window)
1592
1593=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
1594
1595=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
1596
1597=item $term->XChangeInput ($window, $add_events[, $del_events])
1598
1599Various X or X-related functions. The C<$term> object only serves as
1600the source of the display, otherwise those functions map more-or-less
1601directory onto the X functions of the same name.
1602
1488=back 1603=back
1489 1604
1490=cut 1605=cut
1491 1606
1492package urxvt::popup; 1607package urxvt::popup;
1611 delete $self->{term}{_destroy}{$self}; 1726 delete $self->{term}{_destroy}{$self};
1612 $self->{term}->ungrab; 1727 $self->{term}->ungrab;
1613} 1728}
1614 1729
1615=back 1730=back
1731
1732=cut
1733
1734package urxvt::watcher;
1735
1736@urxvt::timer::ISA = __PACKAGE__;
1737@urxvt::iow::ISA = __PACKAGE__;
1738@urxvt::pw::ISA = __PACKAGE__;
1739@urxvt::iw::ISA = __PACKAGE__;
1616 1740
1617=head2 The C<urxvt::timer> Class 1741=head2 The C<urxvt::timer> Class
1618 1742
1619This class implements timer watchers/events. Time is represented as a 1743This class implements timer watchers/events. Time is represented as a
1620fractional number of seconds since the epoch. Example: 1744fractional number of seconds since the epoch. Example:
1718 1842
1719Stop watching for events on the given filehandle. 1843Stop watching for events on the given filehandle.
1720 1844
1721=back 1845=back
1722 1846
1847=head2 The C<urxvt::iw> Class
1848
1849This class implements idle watchers, that get called automatically when
1850the process is idle. They should return as fast as possible, after doing
1851some useful work.
1852
1853=over 4
1854
1855=item $iw = new urxvt::iw
1856
1857Create a new idle watcher object in stopped state.
1858
1859=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
1860
1861Set the callback to be called when the watcher triggers.
1862
1863=item $timer = $timer->start
1864
1865Start the watcher.
1866
1867=item $timer = $timer->stop
1868
1869Stop the watcher.
1870
1871=back
1872
1873=head2 The C<urxvt::pw> Class
1874
1875This class implements process watchers. They create an event whenever a
1876process exits, after which they stop automatically.
1877
1878 my $pid = fork;
1879 ...
1880 $term->{pw} = urxvt::pw
1881 ->new
1882 ->start ($pid)
1883 ->cb (sub {
1884 my ($pw, $exit_status) = @_;
1885 ...
1886 });
1887
1888=over 4
1889
1890=item $pw = new urxvt::pw
1891
1892Create a new process watcher in stopped state.
1893
1894=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
1895
1896Set the callback to be called when the timer triggers.
1897
1898=item $pw = $timer->start ($pid)
1899
1900Tells the wqtcher to start watching for process C<$pid>.
1901
1902=item $pw = $pw->stop
1903
1904Stop the watcher.
1905
1906=back
1907
1723=head1 ENVIRONMENT 1908=head1 ENVIRONMENT
1724 1909
1725=head2 URXVT_PERL_VERBOSITY 1910=head2 URXVT_PERL_VERBOSITY
1726 1911
1727This variable controls the verbosity level of the perl extension. Higher 1912This variable controls the verbosity level of the perl extension. Higher

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