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Revision 1.220 by root, Tue Jun 19 18:17:56 2012 UTC vs.
Revision 1.247 by root, Fri Dec 26 19:19:30 2014 UTC

1=encoding utf8 1=encoding utf8
2 2
3=head1 NAME 3=head1 NAME
4 4
5@@RXVT_NAME@@perl - rxvt-unicode's embedded perl interpreter 5urxvtperl - rxvt-unicode's embedded perl interpreter
6 6
7=head1 SYNOPSIS 7=head1 SYNOPSIS
8 8
9 # create a file grab_test in $HOME: 9 # create a file grab_test in $HOME:
10 10
11 sub on_sel_grab { 11 sub on_sel_grab {
12 warn "you selected ", $_[0]->selection; 12 warn "you selected ", $_[0]->selection;
13 () 13 ()
14 } 14 }
15 15
16 # start a @@RXVT_NAME@@ using it: 16 # start a urxvt using it:
17 17
18 @@RXVT_NAME@@ --perl-lib $HOME -pe grab_test 18 urxvt --perl-lib $HOME -pe grab_test
19 19
20=head1 DESCRIPTION 20=head1 DESCRIPTION
21 21
22Every time a terminal object gets created, extension scripts specified via 22Every time a terminal object gets created, extension scripts specified via
23the C<perl> resource are loaded and associated with it. 23the C<perl> resource are loaded and associated with it.
24 24
25Scripts are compiled in a 'use strict "vars"' and 'use utf8' environment, and 25Scripts are compiled in a 'use strict "vars"' and 'use utf8' environment, and
26thus must be encoded as UTF-8. 26thus must be encoded as UTF-8.
27 27
28Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where 28Each script will only ever be loaded once, even in urxvtd, where
29scripts will be shared (but not enabled) for all terminals. 29scripts will be shared (but not enabled) for all terminals.
30 30
31You can disable the embedded perl interpreter by setting both "perl-ext" 31You can disable the embedded perl interpreter by setting both "perl-ext"
32and "perl-ext-common" resources to the empty string. 32and "perl-ext-common" resources to the empty string.
33 33
34=head1 PREPACKAGED EXTENSIONS 34=head1 PREPACKAGED EXTENSIONS
35 35
36A number of extensions are delivered with this release. You can find them 36A number of extensions are delivered with this release. You can find them
37in F<@@RXVT_LIBDIR@@/urxvt/perl/>, and the documentation can be viewed 37in F<< <libdir>/urxvt/perl/ >>, and the documentation can be viewed using
38using F<< man urxvt-<EXTENSIONNAME> >>. 38F<< man urxvt-<EXTENSIONNAME> >>.
39 39
40You can activate them like this: 40You can activate them like this:
41 41
42 @@RXVT_NAME@@ -pe <extensionname> 42 urxvt -pe <extensionname>
43 43
44Or by adding them to the resource for extensions loaded by default: 44Or by adding them to the resource for extensions loaded by default:
45 45
46 URxvt.perl-ext-common: default,selection-autotransform 46 URxvt.perl-ext-common: default,selection-autotransform
47 47
48Extensions that add command line parameters or resources on their own are 48Extensions may add additional resources and C<actions>, i.e., methods
49loaded automatically when used. 49which can be bound to a key and invoked by the user. An extension can
50define the resources it support and also default bindings for one or
51more actions it provides using so called META comments, described
52below. Similarly to builtin resources, extension resources can also be
53specified on the command line as long options (with C<.> replaced by
54C<->), in which case the corresponding extension is loaded
55automatically. For this to work the extension B<must> define META
56comments for its resources.
50 57
51=head1 API DOCUMENTATION 58=head1 API DOCUMENTATION
52 59
53=head2 General API Considerations 60=head2 General API Considerations
54 61
103internal use. 110internal use.
104 111
105Although it isn't a C<urxvt::term> object, you can call all methods of the 112Although it isn't a C<urxvt::term> object, you can call all methods of the
106C<urxvt::term> class on this object. 113C<urxvt::term> class on this object.
107 114
108It has the following methods and data members: 115Additional methods only supported for extension objects are described in
116the C<urxvt::extension> section below.
117
118=head2 META comments
119
120Rxvt-unicode recognizes special meta comments in extensions that define
121different types of metadata.
122
123Currently, it recxognises only one such comment:
109 124
110=over 4 125=over 4
111 126
112=item $urxvt_term = $self->{term} 127=item #:META:RESOURCE:name:type:desc
113 128
114Returns the C<urxvt::term> object associated with this instance of the 129The RESOURCE comment defines a resource used by the extension, where
115extension. This member I<must not> be changed in any way. 130C<name> is the resource name, C<type> is the resource type, C<boolean>
116 131or C<string>, and C<desc> is the resource description.
117=item $self->enable ($hook_name => $cb[, $hook_name => $cb..])
118
119Dynamically enable the given hooks (named without the C<on_> prefix) for
120this extension, replacing any previous hook. This is useful when you want
121to overwrite time-critical hooks only temporarily.
122
123To install additional callbacks for the same hook, you cna use the C<on>
124method of the C<urxvt::term> class.
125
126=item $self->disable ($hook_name[, $hook_name..])
127
128Dynamically disable the given hooks.
129
130=item $self->x_resource ($pattern)
131
132=item $self->x_resource_boolean ($pattern)
133
134These methods support an additional C<%> prefix when called on an
135extension object - see the description of these methods in the
136C<urxvt::term> class for details.
137 132
138=back 133=back
139 134
140=head2 Hooks 135=head2 Hooks
141 136
310 305
311=item on_refresh_end $term 306=item on_refresh_end $term
312 307
313Called just after the screen gets redrawn. See C<on_refresh_begin>. 308Called just after the screen gets redrawn. See C<on_refresh_begin>.
314 309
310=item on_action $term, $string
311
312Called whenever an action is invoked for the corresponding extension
313(e.g. via a C<extension:string> builtin action bound to a key, see
314description of the B<keysym> resource in the urxvt(1) manpage). The
315event is simply the action string. Note that an action event is always
316associated to a single extension.
317
315=item on_user_command $term, $string 318=item on_user_command $term, $string *DEPRECATED*
316 319
317Called whenever a user-configured event is being activated (e.g. via 320Called whenever a user-configured event is being activated (e.g. via
318a C<perl:string> action bound to a key, see description of the B<keysym> 321a C<perl:string> action bound to a key, see description of the B<keysym>
319resource in the @@RXVT_NAME@@(1) manpage). 322resource in the urxvt(1) manpage).
320 323
321The event is simply the action string. This interface is assumed to change 324The event is simply the action string. This interface is going away in
322slightly in the future. 325preference to the C<on_action> hook.
323
324=item on_register_command $term, $keysym, $modifiermask, $string
325
326Called after parsing a keysym resource but before registering the
327associated binding. If this hook returns TRUE the binding is not
328registered. It can be used to modify a binding by calling
329C<register_command>.
330 326
331=item on_resize_all_windows $term, $new_width, $new_height 327=item on_resize_all_windows $term, $new_width, $new_height
332 328
333Called just after the new window size has been calculated, but before 329Called just after the new window size has been calculated, but before
334windows are actually being resized or hints are being set. If this hook 330windows are actually being resized or hints are being set. If this hook
335returns TRUE, setting of the window hints is being skipped. 331returns a true value, setting of the window hints is being skipped.
336 332
337=item on_x_event $term, $event 333=item on_x_event $term, $event
338 334
339Called on every X event received on the vt window (and possibly other 335Called on every X event received on the vt window (and possibly other
340windows). Should only be used as a last resort. Most event structure 336windows). Should only be used as a last resort. Most event structure
379manpage), with the additional members C<row> and C<col>, which are the 375manpage), with the additional members C<row> and C<col>, which are the
380(real, not screen-based) row and column under the mouse cursor. 376(real, not screen-based) row and column under the mouse cursor.
381 377
382C<on_key_press> additionally receives the string rxvt-unicode would 378C<on_key_press> additionally receives the string rxvt-unicode would
383output, if any, in locale-specific encoding. 379output, if any, in locale-specific encoding.
384
385subwindow.
386 380
387=item on_client_message $term, $event 381=item on_client_message $term, $event
388 382
389=item on_wm_protocols $term, $event 383=item on_wm_protocols $term, $event
390 384
593no warnings 'utf8'; 587no warnings 'utf8';
594 588
595sub parse_resource { 589sub parse_resource {
596 my ($term, $name, $isarg, $longopt, $flag, $value) = @_; 590 my ($term, $name, $isarg, $longopt, $flag, $value) = @_;
597 591
598 $name =~ y/-/./ if $isarg;
599
600 $term->scan_meta; 592 $term->scan_extensions;
601 593
602 my $r = $term->{meta}{resource}; 594 my $r = $term->{meta}{resource};
603 keys %$r; # reste iterator 595 keys %$r; # reset iterator
604 while (my ($pattern, $v) = each %$r) { 596 while (my ($k, $v) = each %$r) {
605 if ( 597 my $pattern = $k;
598 $pattern =~ y/./-/ if $isarg;
599 my $prefix = $name;
600 my $suffix;
606 $pattern =~ /\.$/ 601 if ($pattern =~ /\-$/) {
607 ? $pattern eq substr $name, 0, length $pattern 602 $prefix = substr $name, 0, length $pattern;
608 : $pattern eq $name 603 $suffix = substr $name, length $pattern;
609 ) { 604 }
605 if ($pattern eq $prefix) {
610 $name = "$urxvt::RESCLASS.$name"; 606 $name = "$urxvt::RESCLASS.$k$suffix";
611 607
612 push @{ $term->{perl_ext_3} }, $v->[0]; 608 push @{ $term->{perl_ext_3} }, $v->[0];
613 609
614 if ($v->[1] eq "boolean") { 610 if ($v->[1] eq "boolean") {
615 $term->put_option_db ($name, $flag ? "true" : "false"); 611 $term->put_option_db ($name, $flag ? "true" : "false");
625} 621}
626 622
627sub usage { 623sub usage {
628 my ($term, $usage_type) = @_; 624 my ($term, $usage_type) = @_;
629 625
630 $term->scan_meta; 626 $term->scan_extensions;
631 627
632 my $r = $term->{meta}{resource}; 628 my $r = $term->{meta}{resource};
633 629
634 for my $pattern (sort keys %$r) { 630 for my $pattern (sort keys %$r) {
635 my ($ext, $type, $desc) = @{ $r->{$pattern} }; 631 my ($ext, $type, $desc) = @{ $r->{$pattern} };
696# called by the rxvt core 692# called by the rxvt core
697sub invoke { 693sub invoke {
698 local $TERM = shift; 694 local $TERM = shift;
699 my $htype = shift; 695 my $htype = shift;
700 696
701 if ($htype == 0) { # INIT 697 if ($htype == HOOK_INIT) {
702 my @dirs = $TERM->perl_libdirs; 698 my @dirs = $TERM->perl_libdirs;
699
700 $TERM->scan_extensions;
703 701
704 my %ext_arg; 702 my %ext_arg;
705 703
706 { 704 {
707 my @init = @TERM_INIT; 705 my @init = @TERM_INIT;
711 @TERM_EXT = (); 709 @TERM_EXT = ();
712 $TERM->register_package ($_) for @pkg; 710 $TERM->register_package ($_) for @pkg;
713 } 711 }
714 712
715 for ( 713 for (
714 (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2),
716 @{ delete $TERM->{perl_ext_3} }, 715 @{ delete $TERM->{perl_ext_3} }
717 grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2
718 ) { 716 ) {
719 if ($_ eq "default") { 717 if ($_ eq "default") {
718
719 $ext_arg{$_} = []
720 for
720 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline); 721 qw(selection option-popup selection-popup readline searchable-scrollback),
722 map $_->[0], values %{ $TERM->{meta}{binding} };
723
724 for ($TERM->_keysym_resources) {
725 next if /^(?:string|command|builtin|builtin-string|perl)/;
726 next unless /^([A-Za-z0-9_\-]+):/;
727
728 my $ext = $1;
729
730 $ext_arg{$ext} = [];
731 }
732
721 } elsif (/^-(.*)$/) { 733 } elsif (/^-(.*)$/) {
722 delete $ext_arg{$1}; 734 delete $ext_arg{$1};
735
723 } elsif (/^([^<]+)<(.*)>$/) { 736 } elsif (/^([^<]+)<(.*)>$/) {
724 push @{ $ext_arg{$1} }, $2; 737 push @{ $ext_arg{$1} }, $2;
738
725 } else { 739 } else {
726 $ext_arg{$_} ||= []; 740 $ext_arg{$_} ||= [];
741 }
742 }
743
744 # now register default key bindings
745 for my $ext (sort keys %ext_arg) {
746 while (my ($k, $v) = each %{ $TERM->{meta}{ext}{$ext}{binding} }) {
747 $TERM->bind_action ($k, "$v->[0]:$v->[1]");
727 } 748 }
728 } 749 }
729 750
730 for my $ext (sort keys %ext_arg) { 751 for my $ext (sort keys %ext_arg) {
731 my @files = grep -f $_, map "$_/$ext", @dirs; 752 my @files = grep -f $_, map "$_/$ext", @dirs;
745 766
746 if (my $cb = $TERM->{_hook}[$htype]) { 767 if (my $cb = $TERM->{_hook}[$htype]) {
747 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")" 768 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
748 if $verbosity >= 10; 769 if $verbosity >= 10;
749 770
771 if ($htype == HOOK_ACTION) {
772 # this hook is only sent to the extension with the name
773 # matching the first arg
774 my $pkg = shift;
775 $pkg =~ y/-/_/;
776 $pkg = "urxvt::ext::$pkg";
777
778 $cb = $cb->{$pkg}
779 or return undef; #TODO: maybe warn user?
780
781 $cb = { $pkg => $cb };
782 }
783
750 for my $pkg (keys %$cb) { 784 for my $pkg (keys %$cb) {
751 my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg} || $TERM, @_) }; 785 my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg} || $TERM, @_) };
752 $retval ||= $retval_; 786 $retval ||= $retval_;
753 787
754 if ($@) { 788 if ($@) {
759 793
760 verbose 11, "$HOOKNAME[$htype] returning <$retval>" 794 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
761 if $verbosity >= 11; 795 if $verbosity >= 11;
762 } 796 }
763 797
764 if ($htype == 1) { # DESTROY 798 if ($htype == HOOK_DESTROY) {
765 # clear package objects 799 # clear package objects
766 %$_ = () for values %{ $TERM->{_pkg} }; 800 %$_ = () for values %{ $TERM->{_pkg} };
767 801
768 # clear package 802 # clear package
769 %$TERM = (); 803 %$TERM = ();
801 ($mask, @color{qw(fg bg)}, \@failed) 835 ($mask, @color{qw(fg bg)}, \@failed)
802} 836}
803 837
804package urxvt::term::extension; 838package urxvt::term::extension;
805 839
806sub enable { 840=head2 The C<urxvt::term::extension> class
807 my ($self, %hook) = @_;
808 my $pkg = $self->{_pkg};
809 841
810 while (my ($name, $cb) = each %hook) { 842Each extension attached to a terminal object is represented by
811 my $htype = $HOOKTYPE{uc $name}; 843a C<urxvt::term::extension> object.
812 defined $htype
813 or Carp::croak "unsupported hook type '$name'";
814 844
815 $self->set_should_invoke ($htype, +1) 845You can use these objects, which are passed to all callbacks to store any
816 unless exists $self->{term}{_hook}[$htype]{$pkg}; 846state related to the terminal and extension instance.
817 847
818 $self->{term}{_hook}[$htype]{$pkg} = $cb; 848The methods (And data members) documented below can be called on extension
819 } 849objects, in addition to call methods documented for the <urxvt::term>
820} 850class.
821 851
822sub disable { 852=over 4
823 my ($self, @hook) = @_;
824 my $pkg = $self->{_pkg};
825 853
826 for my $name (@hook) { 854=item $urxvt_term = $self->{term}
827 my $htype = $HOOKTYPE{uc $name};
828 defined $htype
829 or Carp::croak "unsupported hook type '$name'";
830 855
831 $self->set_should_invoke ($htype, -1) 856Returns the C<urxvt::term> object associated with this instance of the
832 if delete $self->{term}{_hook}[$htype]{$pkg}; 857extension. This member I<must not> be changed in any way.
833 } 858
834} 859=cut
835 860
836our $AUTOLOAD; 861our $AUTOLOAD;
837 862
838sub AUTOLOAD { 863sub AUTOLOAD {
839 $AUTOLOAD =~ /:([^:]+)$/ 864 $AUTOLOAD =~ /:([^:]+)$/
852 877
853sub DESTROY { 878sub DESTROY {
854 # nop 879 # nop
855} 880}
856 881
857# urxvt::destroy_hook 882# urxvt::destroy_hook (basically a cheap Guard:: implementation)
858 883
859sub urxvt::destroy_hook::DESTROY { 884sub urxvt::destroy_hook::DESTROY {
860 ${$_[0]}->(); 885 ${$_[0]}->();
861} 886}
862 887
863sub urxvt::destroy_hook(&) { 888sub urxvt::destroy_hook(&) {
864 bless \shift, urxvt::destroy_hook:: 889 bless \shift, urxvt::destroy_hook::
890}
891
892=item $self->enable ($hook_name => $cb[, $hook_name => $cb..])
893
894Dynamically enable the given hooks (named without the C<on_> prefix) for
895this extension, replacing any hook previously installed via C<enable> in
896this extension.
897
898This is useful when you want to overwrite time-critical hooks only
899temporarily.
900
901To install additional callbacks for the same hook, you can use the C<on>
902method of the C<urxvt::term> class.
903
904=item $self->disable ($hook_name[, $hook_name..])
905
906Dynamically disable the given hooks.
907
908=cut
909
910sub enable {
911 my ($self, %hook) = @_;
912 my $pkg = $self->{_pkg};
913
914 while (my ($name, $cb) = each %hook) {
915 my $htype = $HOOKTYPE{uc $name};
916 defined $htype
917 or Carp::croak "unsupported hook type '$name'";
918
919 $self->set_should_invoke ($htype, +1)
920 unless exists $self->{term}{_hook}[$htype]{$pkg};
921
922 $self->{term}{_hook}[$htype]{$pkg} = $cb;
923 }
924}
925
926sub disable {
927 my ($self, @hook) = @_;
928 my $pkg = $self->{_pkg};
929
930 for my $name (@hook) {
931 my $htype = $HOOKTYPE{uc $name};
932 defined $htype
933 or Carp::croak "unsupported hook type '$name'";
934
935 $self->set_should_invoke ($htype, -1)
936 if delete $self->{term}{_hook}[$htype]{$pkg};
937 }
938}
939
940=item $guard = $self->on ($hook_name => $cb[, $hook_name => $cb..])
941
942Similar to the C<enable> enable, but installs additional callbacks for
943the given hook(s) (that is, it doesn't replace existing callbacks), and
944returns a guard object. When the guard object is destroyed the callbacks
945are disabled again.
946
947=cut
948
949sub urxvt::extension::on_disable::DESTROY {
950 my $disable = shift;
951
952 my $term = delete $disable->{""};
953
954 while (my ($htype, $id) = each %$disable) {
955 delete $term->{_hook}[$htype]{$id};
956 $term->set_should_invoke ($htype, -1);
957 }
958}
959
960sub on {
961 my ($self, %hook) = @_;
962
963 my $term = $self->{term};
964
965 my %disable = ( "" => $term );
966
967 while (my ($name, $cb) = each %hook) {
968 my $htype = $HOOKTYPE{uc $name};
969 defined $htype
970 or Carp::croak "unsupported hook type '$name'";
971
972 $term->set_should_invoke ($htype, +1);
973 $term->{_hook}[$htype]{ $disable{$htype} = $cb+0 }
974 = sub { shift; $cb->($self, @_) }; # very ugly indeed
975 }
976
977 bless \%disable, "urxvt::extension::on_disable"
978}
979
980=item $self->bind_action ($hotkey, $action)
981
982=item $self->x_resource ($pattern)
983
984=item $self->x_resource_boolean ($pattern)
985
986These methods support an additional C<%> prefix for C<$action> or
987C<$pattern> when called on an extension object, compared to the
988C<urxvt::term> methods of the same name - see the description of these
989methods in the C<urxvt::term> class for details.
990
991=cut
992
993sub bind_action {
994 my ($self, $hotkey, $action) = @_;
995 $action =~ s/^%:/$_[0]{_name}:/;
996 $self->{term}->bind_action ($hotkey, $action)
865} 997}
866 998
867sub x_resource { 999sub x_resource {
868 my ($self, $name) = @_; 1000 my ($self, $name) = @_;
869 $name =~ s/^%(\.|$)/$_[0]{_name}$1/; 1001 $name =~ s/^%(\.|$)/$_[0]{_name}$1/;
873sub x_resource_boolean { 1005sub x_resource_boolean {
874 my ($self, $name) = @_; 1006 my ($self, $name) = @_;
875 $name =~ s/^%(\.|$)/$_[0]{_name}$1/; 1007 $name =~ s/^%(\.|$)/$_[0]{_name}$1/;
876 $self->{term}->x_resource_boolean ($name) 1008 $self->{term}->x_resource_boolean ($name)
877} 1009}
1010
1011=back
1012
1013=cut
878 1014
879package urxvt::anyevent; 1015package urxvt::anyevent;
880 1016
881=head2 The C<urxvt::anyevent> Class 1017=head2 The C<urxvt::anyevent> Class
882 1018
1001 $ENV{URXVT_PERL_LIB}, 1137 $ENV{URXVT_PERL_LIB},
1002 "$ENV{HOME}/.urxvt/ext", 1138 "$ENV{HOME}/.urxvt/ext",
1003 "$LIBDIR/perl" 1139 "$LIBDIR/perl"
1004} 1140}
1005 1141
1006sub scan_meta { 1142# scan for available extensions and collect their metadata
1143sub scan_extensions {
1007 my ($self) = @_; 1144 my ($self) = @_;
1145
1146 return if exists $self->{meta};
1147
1008 my @libdirs = perl_libdirs $self; 1148 my @libdirs = perl_libdirs $self;
1009 1149
1010 return if $self->{meta_libdirs} eq join "\x00", @libdirs; 1150# return if $self->{meta_libdirs} eq join "\x00", @libdirs;#d#
1011 1151
1012 my %meta;
1013
1014 $self->{meta_libdirs} = join "\x00", @libdirs; 1152# $self->{meta_libdirs} = join "\x00", @libdirs;#d#
1015 $self->{meta} = \%meta; 1153 $self->{meta} = \my %meta;
1016 1154
1155 # first gather extensions
1017 for my $dir (reverse @libdirs) { 1156 for my $dir (reverse @libdirs) {
1018 opendir my $fh, $dir 1157 opendir my $fh, $dir
1019 or next; 1158 or next;
1020 for my $ext (readdir $fh) { 1159 for my $ext (readdir $fh) {
1021 $ext ne "." 1160 $ext !~ /^\./
1022 and $ext ne ".."
1023 and open my $fh, "<", "$dir/$ext" 1161 and open my $fh, "<", "$dir/$ext"
1024 or next; 1162 or next;
1025 1163
1164 my %ext = (dir => $dir);
1165
1026 while (<$fh>) { 1166 while (<$fh>) {
1027 if (/^#:META:X_RESOURCE:(.*)/) { 1167 if (/^#:META:(?:X_)?RESOURCE:(.*)/) {
1028 my ($pattern, $type, $desc) = split /:/, $1; 1168 my ($pattern, $type, $desc) = split /:/, $1;
1029 $pattern =~ s/^%(\.|$)/$ext$1/g; # % in pattern == extension name 1169 $pattern =~ s/^%(\.|$)/$ext$1/g; # % in pattern == extension name
1030 if ($pattern =~ /[^a-zA-Z0-9\-\.]/) { 1170 if ($pattern =~ /[^a-zA-Z0-9\-\.]/) {
1031 warn "$dir/$ext: meta resource '$pattern' contains illegal characters (not alphanumeric nor . nor *)\n"; 1171 warn "$dir/$ext: meta resource '$pattern' contains illegal characters (not alphanumeric nor . nor *)\n";
1032 } else { 1172 } else {
1033 $meta{resource}{$pattern} = [$ext, $type, $desc]; 1173 $ext{resource}{$pattern} = [$ext, $type, $desc];
1034 } 1174 }
1175 } elsif (/^#:META:BINDING:(.*)/) {
1176 my ($keysym, $action) = split /:/, $1;
1177 $ext{binding}{$keysym} = [$ext, $action];
1035 } elsif (/^\s*(?:#|$)/) { 1178 } elsif (/^\s*(?:#|$)/) {
1036 # skip other comments and empty lines 1179 # skip other comments and empty lines
1037 } else { 1180 } else {
1038 last; # stop parsing on first non-empty non-comment line 1181 last; # stop parsing on first non-empty non-comment line
1039 } 1182 }
1040 } 1183 }
1184
1185 $meta{ext}{$ext} = \%ext;
1041 } 1186 }
1187 }
1188
1189 # and now merge resources and bindings
1190 while (my ($k, $v) = each %{ $meta{ext} }) {
1191 #TODO: should check for extensions overriding each other
1192 %{ $meta{resource} } = (%{ $meta{resource} }, %{ $v->{resource} });
1193 %{ $meta{binding} } = (%{ $meta{binding} }, %{ $v->{binding} });
1042 } 1194 }
1043} 1195}
1044 1196
1045=item $term = new urxvt::term $envhashref, $rxvtname, [arg...] 1197=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
1046 1198
1066} 1218}
1067 1219
1068=item $term->destroy 1220=item $term->destroy
1069 1221
1070Destroy the terminal object (close the window, free resources 1222Destroy the terminal object (close the window, free resources
1071etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event 1223etc.). Please note that urxvt will not exit as long as any event
1072watchers (timers, io watchers) are still active. 1224watchers (timers, io watchers) are still active.
1073
1074=item $guard = $self->on ($hook_name => $cb[, $hook_name => $cb..])
1075
1076Similar to the extension method C<enable>, but installs additional
1077callbacks for the givne hook(s) (existing ones are not replaced), and
1078returns a guard object. When the guard object is destroyed the callbacks
1079are disabled again.
1080
1081Note that these callbacks receive the normal paramaters, but the first
1082argument (normally the extension) is currently undefined.
1083
1084=cut
1085
1086sub urxvt::term::on_disable::DESTROY {
1087 my $disable = shift;
1088
1089 my $self = delete $disable->{""};
1090
1091 while (my ($htype, $id) = each %$disable) {
1092 delete $self->{_hook}[$htype]{$id};
1093 $self->set_should_invoke ($htype, -1);
1094 }
1095}
1096
1097sub on {
1098 my ($self, %hook) = @_;
1099
1100 my %disable = ( "" => $self );
1101
1102 while (my ($name, $cb) = each %hook) {
1103 my $htype = $HOOKTYPE{uc $name};
1104 defined $htype
1105 or Carp::croak "unsupported hook type '$name'";
1106
1107 my $id = $cb+0;
1108
1109 $self->set_should_invoke ($htype, +1);
1110 $disable{$htype} = $id;
1111 $self->{_hook}[$htype]{$id} = $cb;
1112 }
1113
1114 bless \%disable, "urxvt::term::on_disable"
1115}
1116 1225
1117=item $term->exec_async ($cmd[, @args]) 1226=item $term->exec_async ($cmd[, @args])
1118 1227
1119Works like the combination of the C<fork>/C<exec> builtins, which executes 1228Works like the combination of the C<fork>/C<exec> builtins, which executes
1120("starts") programs in the background. This function takes care of setting 1229("starts") programs in the background. This function takes care of setting
1205Returns the X-Resource for the given pattern, excluding the program or 1314Returns the X-Resource for the given pattern, excluding the program or
1206class name, i.e. C<< $term->x_resource ("boldFont") >> should return the 1315class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
1207same value as used by this instance of rxvt-unicode. Returns C<undef> if no 1316same value as used by this instance of rxvt-unicode. Returns C<undef> if no
1208resource with that pattern exists. 1317resource with that pattern exists.
1209 1318
1210Extensions that define extra resource or command line arguments also need 1319Extensions that define extra resources also need to call this method
1211to call this method to access their values. 1320to access their values.
1212 1321
1213If the method is called on an extension object (basically, from an 1322If the method is called on an extension object (basically, from an
1214extension), then the special prefix C<%.> will be replaced by the name of 1323extension), then the special prefix C<%.> will be replaced by the name of
1215the extension and a dot, and the lone string C<%> will be replaced by the 1324the extension and a dot, and the lone string C<%> will be replaced by the
1216extension name itself. This makes it possible to code extensions so you 1325extension name itself. This makes it possible to code extensions so you
1217can rename them and get a new set of commandline switches and resources 1326can rename them and get a new set of resources without having to change
1218without having to change the actual code. 1327the actual code.
1219 1328
1220This method should only be called during the C<on_start> hook, as there is 1329This method should only be called during the C<on_start> hook, as there is
1221only one resource database per display, and later invocations might return 1330only one resource database per display, and later invocations might return
1222the wrong resources. 1331the wrong resources.
1223 1332
1235 my $res = &x_resource; 1344 my $res = &x_resource;
1236 1345
1237 $res =~ /^\s*(?:true|yes|on|1)\s*$/i ? 1 : defined $res && 0 1346 $res =~ /^\s*(?:true|yes|on|1)\s*$/i ? 1 : defined $res && 0
1238} 1347}
1239 1348
1240=item $success = $term->parse_keysym ($key, $octets) 1349=item $success = $term->bind_action ($key, $action)
1241 1350
1242Adds a key binding exactly as specified via a resource. See the 1351Adds a key binding exactly as specified via a C<keysym> resource. See the
1243C<keysym> resource in the @@RXVT_NAME@@(1) manpage. 1352C<keysym> resource in the urxvt(1) manpage.
1244 1353
1245=item $term->register_command ($keysym, $modifiermask, $string) 1354To add default bindings for an extension, the extension should call C<<
1355->bind_action >> on it's C<init> hook for every such binding. Doing it
1356in the C<init> hook allows users the override or remove the the binding
1357again.
1246 1358
1247Adds a key binding. This is a lower level api compared to 1359Example: the C<searchable-scrollback> by default binds itself
1248C<parse_keysym>, as it expects a parsed key description, and can be 1360on C<Meta-s>, using C<< $self->bind_action >>, which calls C<<
1249used only inside either the C<on_init> hook, to add a binding, or the 1361$term->bind_action >>.
1250C<on_register_command> hook, to modify a parsed binding. 1362
1363 sub init {
1364 my ($self) = @_;
1365
1366 $self->bind_action ("M-s" => "%:start");
1367 }
1251 1368
1252=item $rend = $term->rstyle ([$new_rstyle]) 1369=item $rend = $term->rstyle ([$new_rstyle])
1253 1370
1254Return and optionally change the current rendition. Text that is output by 1371Return and optionally change the current rendition. Text that is output by
1255the terminal application will use this style. 1372the terminal application will use this style.
1413 1530
1414=item $term->scr_add_lines ($string) 1531=item $term->scr_add_lines ($string)
1415 1532
1416Write the given text string to the screen, as if output by the application 1533Write the given text string to the screen, as if output by the application
1417running inside the terminal. It may not contain command sequences (escape 1534running inside the terminal. It may not contain command sequences (escape
1418codes), but is free to use line feeds, carriage returns and tabs. The 1535codes - see C<cmd_parse> for that), but is free to use line feeds,
1419string is a normal text string, not in locale-dependent encoding. 1536carriage returns and tabs. The string is a normal text string, not in
1537locale-dependent encoding.
1420 1538
1421Normally its not a good idea to use this function, as programs might be 1539Normally its not a good idea to use this function, as programs might be
1422confused by changes in cursor position or scrolling. Its useful inside a 1540confused by changes in cursor position or scrolling. Its useful inside a
1423C<on_add_lines> hook, though. 1541C<on_add_lines> hook, though.
1424 1542
1432locale-specific encoding of the terminal and can contain command sequences 1550locale-specific encoding of the terminal and can contain command sequences
1433(escape codes) that will be interpreted. 1551(escape codes) that will be interpreted.
1434 1552
1435=item $term->tt_write ($octets) 1553=item $term->tt_write ($octets)
1436 1554
1437Write the octets given in C<$octets> to the tty (i.e. as program input). To 1555Write the octets given in C<$octets> to the tty (i.e. as user input
1556to the program, see C<cmd_parse> for the opposite direction). To pass
1438pass characters instead of octets, you should convert your strings first 1557characters instead of octets, you should convert your strings first to the
1439to the locale-specific encoding using C<< $term->locale_encode >>. 1558locale-specific encoding using C<< $term->locale_encode >>.
1559
1560=item $term->tt_write_user_input ($octets)
1561
1562Like C<tt_write>, but should be used when writing strings in response to
1563the user pressing a key, to invoke the additional actions requested by
1564the user for that case (C<tt_write> doesn't do that).
1565
1566The typical use case would be inside C<on_action> hooks.
1440 1567
1441=item $term->tt_paste ($octets) 1568=item $term->tt_paste ($octets)
1442 1569
1443Write the octets given in C<$octets> to the tty as a paste, converting NL to 1570Write the octets given in C<$octets> to the tty as a paste, converting NL to
1444CR and bracketing the data with control sequences if bracketed paste mode 1571CR and bracketing the data with control sequences if bracketed paste mode
1678} 1805}
1679 1806
1680sub urxvt::line::t { 1807sub urxvt::line::t {
1681 my ($self) = @_; 1808 my ($self) = @_;
1682 1809
1683 if (@_ > 1) 1810 if (@_ > 1) {
1684 {
1685 $self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol}) 1811 $self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
1686 for $self->{beg} .. $self->{end}; 1812 for $self->{beg} .. $self->{end};
1687 } 1813 }
1688 1814
1689 defined wantarray && 1815 defined wantarray &&
1690 substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}), 1816 substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),
1691 0, $self->{len} 1817 0, $self->{len}
1692} 1818}
1693 1819
1694sub urxvt::line::r { 1820sub urxvt::line::r {
1695 my ($self) = @_; 1821 my ($self) = @_;
1696 1822
1697 if (@_ > 1) 1823 if (@_ > 1) {
1698 {
1699 $self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol}) 1824 $self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
1700 for $self->{beg} .. $self->{end}; 1825 for $self->{beg} .. $self->{end};
1701 } 1826 }
1702 1827
1703 if (defined wantarray) { 1828 if (defined wantarray) {
1704 my $rend = [ 1829 my $rend = [
1705 map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end} 1830 map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}
1706 ]; 1831 ];

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