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Revision 1.104 by root, Wed Jan 18 17:49:47 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
630 my $msg = join "", @_; 678 my $msg = join "", @_;
631 $msg .= "\n" 679 $msg .= "\n"
632 unless $msg =~ /\n$/; 680 unless $msg =~ /\n$/;
633 urxvt::warn ($msg); 681 urxvt::warn ($msg);
634 }; 682 };
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} 683}
642 684
643my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 685my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
644 686
645sub verbose { 687sub verbose {
650my %extension_pkg; 692my %extension_pkg;
651 693
652# load a single script into its own package, once only 694# load a single script into its own package, once only
653sub extension_package($) { 695sub extension_package($) {
654 my ($path) = @_; 696 my ($path) = @_;
655
656 no strict 'refs';
657 697
658 $extension_pkg{$path} ||= do { 698 $extension_pkg{$path} ||= do {
659 $path =~ /([^\/\\]+)$/; 699 $path =~ /([^\/\\]+)$/;
660 my $pkg = $1; 700 my $pkg = $1;
661 $pkg =~ s/[^[:word:]]/_/g; 701 $pkg =~ s/[^[:word:]]/_/g;
664 verbose 3, "loading extension '$path' into package '$pkg'"; 704 verbose 3, "loading extension '$path' into package '$pkg'";
665 705
666 open my $fh, "<:raw", $path 706 open my $fh, "<:raw", $path
667 or die "$path: $!"; 707 or die "$path: $!";
668 708
669 @{"$pkg\::ISA"} = urxvt::term::extension::;
670
671 my $source = 709 my $source =
672 "package $pkg; use strict; use utf8;\n" 710 "package $pkg; use strict; use utf8;\n"
673 . "#line 1 \"$path\"\n{\n" 711 . "#line 1 \"$path\"\n{\n"
674 . (do { local $/; <$fh> }) 712 . (do { local $/; <$fh> })
675 . "\n};\n1"; 713 . "\n};\n1";
691 if ($htype == 0) { # INIT 729 if ($htype == 0) { # INIT
692 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 730 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
693 731
694 my %ext_arg; 732 my %ext_arg;
695 733
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
696 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 743 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
697 if ($_ eq "default") { 744 if ($_ eq "default") {
698 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); 745 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback);
699 } elsif (/^-(.*)$/) { 746 } elsif (/^-(.*)$/) {
700 delete $ext_arg{$1}; 747 delete $ext_arg{$1};
701 } elsif (/^([^<]+)<(.*)>$/) { 748 } elsif (/^([^<]+)<(.*)>$/) {
726 if $verbosity >= 10; 773 if $verbosity >= 10;
727 774
728 keys %$cb; 775 keys %$cb;
729 776
730 while (my ($pkg, $cb) = each %$cb) { 777 while (my ($pkg, $cb) = each %$cb) {
731 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) } 778 my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
732 and last; 779 $retval ||= $retval_;
733 780
734 if ($@) { 781 if ($@) {
735 $TERM->ungrab; # better to lose the grab than the session 782 $TERM->ungrab; # better to lose the grab than the session
736 warn $@; 783 warn $@;
737 } 784 }
748 # clear package 795 # clear package
749 %$TERM = (); 796 %$TERM = ();
750 } 797 }
751 798
752 $retval 799 $retval
753}
754
755sub exec_async(@) {
756 my $pid = fork;
757
758 return
759 if !defined $pid or $pid;
760
761 %ENV = %{ $TERM->env };
762
763 exec @_;
764 _exit 255;
765} 800}
766 801
767# urxvt::term::extension 802# urxvt::term::extension
768 803
769package urxvt::term::extension; 804package urxvt::term::extension;
908# find on_xxx subs in the package and register them 943# find on_xxx subs in the package and register them
909# as hooks 944# as hooks
910sub register_package { 945sub register_package {
911 my ($self, $pkg, $argv) = @_; 946 my ($self, $pkg, $argv) = @_;
912 947
948 no strict 'refs';
949
950 urxvt::verbose 6, "register package $pkg to $self";
951
952 @{"$pkg\::ISA"} = urxvt::term::extension::;
953
913 my $proxy = bless { 954 my $proxy = bless {
914 _pkg => $pkg, 955 _pkg => $pkg,
915 argv => $argv, 956 argv => $argv,
916 }, $pkg; 957 }, $pkg;
917 Scalar::Util::weaken ($proxy->{term} = $self); 958 Scalar::Util::weaken ($proxy->{term} = $self);
948 989
949Destroy the terminal object (close the window, free resources 990Destroy the terminal object (close the window, free resources
950etc.). 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
951watchers (timers, io watchers) are still active. 992watchers (timers, io watchers) are still active.
952 993
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}
1018
953=item $isset = $term->option ($optval[, $set]) 1019=item $isset = $term->option ($optval[, $set])
954 1020
955Returns true if the option specified by C<$optval> is enabled, and 1021Returns true if the option specified by C<$optval> is enabled, and
956optionally 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
957C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash. 1023C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
959Here is a a likely non-exhaustive list of option names, please see the 1025Here is a a likely non-exhaustive list of option names, please see the
960source file F</src/optinc.h> to see the actual list: 1026source file F</src/optinc.h> to see the actual list:
961 1027
962 borderLess console cursorBlink cursorUnderline hold iconic insecure 1028 borderLess console cursorBlink cursorUnderline hold iconic insecure
963 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage 1029 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
964 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating 1030 override-redirect pastableTabs pointerBlank reverseVideo scrollBar
965 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer 1031 scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
966 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent 1032 scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
967 tripleclickwords utmpInhibit visualBell 1033 transparent tripleclickwords utmpInhibit visualBell
968 1034
969=item $value = $term->resource ($name[, $newval]) 1035=item $value = $term->resource ($name[, $newval])
970 1036
971Returns the current resource value associated with a given name and 1037Returns the current resource value associated with a given name and
972optionally sets a new value. Setting values is most useful in the C<init> 1038optionally sets a new value. Setting values is most useful in the C<init>
989 1055
990 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 1056 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
991 borderLess color cursorBlink cursorUnderline cutchars delete_key 1057 borderLess color cursorBlink cursorUnderline cutchars delete_key
992 display_name embed ext_bwidth fade font geometry hold iconName 1058 display_name embed ext_bwidth fade font geometry hold iconName
993 imFont imLocale inputMethod insecure int_bwidth intensityStyles 1059 imFont imLocale inputMethod insecure int_bwidth intensityStyles
994 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 1060 italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
995 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2 1061 mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
996 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 1062 perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
997 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 1063 preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
998 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 1064 scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
999 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 1065 scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
1000 shade term_name title transparent transparent_all tripleclickwords 1066 secondaryScreen secondaryScroll selectstyle shade term_name title
1001 utmpInhibit visualBell 1067 transient_for transparent transparent_all tripleclickwords utmpInhibit
1068 visualBell
1002 1069
1003=cut 1070=cut
1004 1071
1005sub resource($$;$) { 1072sub resource($$;$) {
1006 my ($self, $name) = (shift, shift); 1073 my ($self, $name) = (shift, shift);
1599 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE. 1666 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1600 delete $env->{LC_ALL}; 1667 delete $env->{LC_ALL};
1601 $env->{LC_CTYPE} = $self->{term}->locale; 1668 $env->{LC_CTYPE} = $self->{term}->locale;
1602 1669
1603 urxvt::term->new ($env, "popup", 1670 urxvt::term->new ($env, "popup",
1604 "--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0, 1671 "--perl-lib" => "", "--perl-ext-common" => "",
1672 "-pty-fd" => -1, "-sl" => 0,
1673 "-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1605 "--transient-for" => $self->{term}->parent, 1674 "--transient-for" => $self->{term}->parent,
1606 "-display" => $self->{term}->display_id, 1675 "-display" => $self->{term}->display_id,
1607 "-pe" => "urxvt-popup") 1676 "-pe" => "urxvt-popup")
1608 or die "unable to create popup window\n"; 1677 or die "unable to create popup window\n";
1609} 1678}
1614 delete $self->{term}{_destroy}{$self}; 1683 delete $self->{term}{_destroy}{$self};
1615 $self->{term}->ungrab; 1684 $self->{term}->ungrab;
1616} 1685}
1617 1686
1618=back 1687=back
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__;
1619 1697
1620=head2 The C<urxvt::timer> Class 1698=head2 The C<urxvt::timer> Class
1621 1699
1622This class implements timer watchers/events. Time is represented as a 1700This class implements timer watchers/events. Time is represented as a
1623fractional number of seconds since the epoch. Example: 1701fractional number of seconds since the epoch. Example:
1721 1799
1722Stop watching for events on the given filehandle. 1800Stop watching for events on the given filehandle.
1723 1801
1724=back 1802=back
1725 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
1726=head1 ENVIRONMENT 1865=head1 ENVIRONMENT
1727 1866
1728=head2 URXVT_PERL_VERBOSITY 1867=head2 URXVT_PERL_VERBOSITY
1729 1868
1730This 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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