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Revision 1.220 by root, Tue Jun 19 18:17:56 2012 UTC vs.
Revision 1.251 by root, Fri Dec 26 22:52:23 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 using so called META comments,
51described below. Similarly to builtin resources, extension resources
52can also be specified on the command line as long options (with C<.>
53replaced by C<->), in which case the corresponding extension is loaded
54automatically. For this to work the extension B<must> define META
55comments for its resources.
50 56
51=head1 API DOCUMENTATION 57=head1 API DOCUMENTATION
52 58
53=head2 General API Considerations 59=head2 General API Considerations
54 60
103internal use. 109internal use.
104 110
105Although it isn't a C<urxvt::term> object, you can call all methods of the 111Although it isn't a C<urxvt::term> object, you can call all methods of the
106C<urxvt::term> class on this object. 112C<urxvt::term> class on this object.
107 113
108It has the following methods and data members: 114Additional methods only supported for extension objects are described in
115the C<urxvt::extension> section below.
116
117=head2 META comments
118
119Rxvt-unicode recognizes special meta comments in extensions that define
120different types of metadata.
121
122Currently, it recognises only one such comment:
109 123
110=over 4 124=over 4
111 125
112=item $urxvt_term = $self->{term} 126=item #:META:RESOURCE:name:type:desc
113 127
114Returns the C<urxvt::term> object associated with this instance of the 128The RESOURCE comment defines a resource used by the extension, where
115extension. This member I<must not> be changed in any way. 129C<name> is the resource name, C<type> is the resource type, C<boolean>
116 130or 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.
137 131
138=back 132=back
139 133
140=head2 Hooks 134=head2 Hooks
141 135
310 304
311=item on_refresh_end $term 305=item on_refresh_end $term
312 306
313Called just after the screen gets redrawn. See C<on_refresh_begin>. 307Called just after the screen gets redrawn. See C<on_refresh_begin>.
314 308
309=item on_action $term, $string
310
311Called whenever an action is invoked for the corresponding extension
312(e.g. via a C<extension:string> builtin action bound to a key, see
313description of the B<keysym> resource in the urxvt(1) manpage). The
314event is simply the action string. Note that an action event is always
315associated to a single extension.
316
315=item on_user_command $term, $string 317=item on_user_command $term, $string *DEPRECATED*
316 318
317Called whenever a user-configured event is being activated (e.g. via 319Called 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> 320a C<perl:string> action bound to a key, see description of the B<keysym>
319resource in the @@RXVT_NAME@@(1) manpage). 321resource in the urxvt(1) manpage).
320 322
321The event is simply the action string. This interface is assumed to change 323The event is simply the action string. This interface is going away in
322slightly in the future. 324preference 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>.
330 325
331=item on_resize_all_windows $term, $new_width, $new_height 326=item on_resize_all_windows $term, $new_width, $new_height
332 327
333Called just after the new window size has been calculated, but before 328Called just after the new window size has been calculated, but before
334windows are actually being resized or hints are being set. If this hook 329windows are actually being resized or hints are being set. If this hook
335returns TRUE, setting of the window hints is being skipped. 330returns a true value, setting of the window hints is being skipped.
336 331
337=item on_x_event $term, $event 332=item on_x_event $term, $event
338 333
339Called on every X event received on the vt window (and possibly other 334Called on every X event received on the vt window (and possibly other
340windows). Should only be used as a last resort. Most event structure 335windows). Should only be used as a last resort. Most event structure
379manpage), with the additional members C<row> and C<col>, which are the 374manpage), with the additional members C<row> and C<col>, which are the
380(real, not screen-based) row and column under the mouse cursor. 375(real, not screen-based) row and column under the mouse cursor.
381 376
382C<on_key_press> additionally receives the string rxvt-unicode would 377C<on_key_press> additionally receives the string rxvt-unicode would
383output, if any, in locale-specific encoding. 378output, if any, in locale-specific encoding.
384
385subwindow.
386 379
387=item on_client_message $term, $event 380=item on_client_message $term, $event
388 381
389=item on_wm_protocols $term, $event 382=item on_wm_protocols $term, $event
390 383
593no warnings 'utf8'; 586no warnings 'utf8';
594 587
595sub parse_resource { 588sub parse_resource {
596 my ($term, $name, $isarg, $longopt, $flag, $value) = @_; 589 my ($term, $name, $isarg, $longopt, $flag, $value) = @_;
597 590
598 $name =~ y/-/./ if $isarg;
599
600 $term->scan_meta; 591 $term->scan_extensions;
601 592
602 my $r = $term->{meta}{resource}; 593 my $r = $term->{meta}{resource};
603 keys %$r; # reste iterator 594 keys %$r; # reset iterator
604 while (my ($pattern, $v) = each %$r) { 595 while (my ($k, $v) = each %$r) {
605 if ( 596 my $pattern = $k;
597 $pattern =~ y/./-/ if $isarg;
598 my $prefix = $name;
599 my $suffix;
606 $pattern =~ /\.$/ 600 if ($pattern =~ /\-$/) {
607 ? $pattern eq substr $name, 0, length $pattern 601 $prefix = substr $name, 0, length $pattern;
608 : $pattern eq $name 602 $suffix = substr $name, length $pattern;
609 ) { 603 }
604 if ($pattern eq $prefix) {
610 $name = "$urxvt::RESCLASS.$name"; 605 $name = "$urxvt::RESCLASS.$k$suffix";
611 606
612 push @{ $term->{perl_ext_3} }, $v->[0]; 607 push @{ $term->{perl_ext_3} }, $v->[0];
613 608
614 if ($v->[1] eq "boolean") { 609 if ($v->[1] eq "boolean") {
615 $term->put_option_db ($name, $flag ? "true" : "false"); 610 $term->put_option_db ($name, $flag ? "true" : "false");
625} 620}
626 621
627sub usage { 622sub usage {
628 my ($term, $usage_type) = @_; 623 my ($term, $usage_type) = @_;
629 624
630 $term->scan_meta; 625 $term->scan_extensions;
631 626
632 my $r = $term->{meta}{resource}; 627 my $r = $term->{meta}{resource};
633 628
634 for my $pattern (sort keys %$r) { 629 for my $pattern (sort keys %$r) {
635 my ($ext, $type, $desc) = @{ $r->{$pattern} }; 630 my ($ext, $type, $desc) = @{ $r->{$pattern} };
696# called by the rxvt core 691# called by the rxvt core
697sub invoke { 692sub invoke {
698 local $TERM = shift; 693 local $TERM = shift;
699 my $htype = shift; 694 my $htype = shift;
700 695
701 if ($htype == 0) { # INIT 696 if ($htype == HOOK_INIT) {
702 my @dirs = $TERM->perl_libdirs; 697 my @dirs = $TERM->perl_libdirs;
698
699 $TERM->scan_extensions;
703 700
704 my %ext_arg; 701 my %ext_arg;
705 702
706 { 703 {
707 my @init = @TERM_INIT; 704 my @init = @TERM_INIT;
711 @TERM_EXT = (); 708 @TERM_EXT = ();
712 $TERM->register_package ($_) for @pkg; 709 $TERM->register_package ($_) for @pkg;
713 } 710 }
714 711
715 for ( 712 for (
713 (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2),
716 @{ delete $TERM->{perl_ext_3} }, 714 @{ delete $TERM->{perl_ext_3} }
717 grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2
718 ) { 715 ) {
719 if ($_ eq "default") { 716 if ($_ eq "default") {
717
718 $ext_arg{$_} = []
720 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline); 719 for qw(selection option-popup selection-popup readline searchable-scrollback);
720
721 for ($TERM->_keysym_resources) {
722 next if /^(?:string|command|builtin|builtin-string|perl)/;
723 next unless /^([A-Za-z0-9_\-]+):/;
724
725 my $ext = $1;
726
727 $ext_arg{$ext} = [];
728 }
729
721 } elsif (/^-(.*)$/) { 730 } elsif (/^-(.*)$/) {
722 delete $ext_arg{$1}; 731 delete $ext_arg{$1};
732
723 } elsif (/^([^<]+)<(.*)>$/) { 733 } elsif (/^([^<]+)<(.*)>$/) {
724 push @{ $ext_arg{$1} }, $2; 734 push @{ $ext_arg{$1} }, $2;
735
725 } else { 736 } else {
726 $ext_arg{$_} ||= []; 737 $ext_arg{$_} ||= [];
727 } 738 }
728 } 739 }
729 740
745 756
746 if (my $cb = $TERM->{_hook}[$htype]) { 757 if (my $cb = $TERM->{_hook}[$htype]) {
747 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")" 758 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
748 if $verbosity >= 10; 759 if $verbosity >= 10;
749 760
761 if ($htype == HOOK_ACTION) {
762 # this hook is only sent to the extension with the name
763 # matching the first arg
764 my $pkg = shift;
765 $pkg =~ y/-/_/;
766 $pkg = "urxvt::ext::$pkg";
767
768 $cb = $cb->{$pkg}
769 or return undef; #TODO: maybe warn user?
770
771 $cb = { $pkg => $cb };
772 }
773
750 for my $pkg (keys %$cb) { 774 for my $pkg (keys %$cb) {
751 my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg} || $TERM, @_) }; 775 my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg} || $TERM, @_) };
752 $retval ||= $retval_; 776 $retval ||= $retval_;
753 777
754 if ($@) { 778 if ($@) {
759 783
760 verbose 11, "$HOOKNAME[$htype] returning <$retval>" 784 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
761 if $verbosity >= 11; 785 if $verbosity >= 11;
762 } 786 }
763 787
764 if ($htype == 1) { # DESTROY 788 if ($htype == HOOK_DESTROY) {
765 # clear package objects 789 # clear package objects
766 %$_ = () for values %{ $TERM->{_pkg} }; 790 %$_ = () for values %{ $TERM->{_pkg} };
767 791
768 # clear package 792 # clear package
769 %$TERM = (); 793 %$TERM = ();
801 ($mask, @color{qw(fg bg)}, \@failed) 825 ($mask, @color{qw(fg bg)}, \@failed)
802} 826}
803 827
804package urxvt::term::extension; 828package urxvt::term::extension;
805 829
806sub enable { 830=head2 The C<urxvt::term::extension> class
807 my ($self, %hook) = @_;
808 my $pkg = $self->{_pkg};
809 831
810 while (my ($name, $cb) = each %hook) { 832Each extension attached to a terminal object is represented by
811 my $htype = $HOOKTYPE{uc $name}; 833a C<urxvt::term::extension> object.
812 defined $htype
813 or Carp::croak "unsupported hook type '$name'";
814 834
815 $self->set_should_invoke ($htype, +1) 835You can use these objects, which are passed to all callbacks to store any
816 unless exists $self->{term}{_hook}[$htype]{$pkg}; 836state related to the terminal and extension instance.
817 837
818 $self->{term}{_hook}[$htype]{$pkg} = $cb; 838The methods (And data members) documented below can be called on extension
819 } 839objects, in addition to call methods documented for the <urxvt::term>
820} 840class.
821 841
822sub disable { 842=over 4
823 my ($self, @hook) = @_;
824 my $pkg = $self->{_pkg};
825 843
826 for my $name (@hook) { 844=item $urxvt_term = $self->{term}
827 my $htype = $HOOKTYPE{uc $name};
828 defined $htype
829 or Carp::croak "unsupported hook type '$name'";
830 845
831 $self->set_should_invoke ($htype, -1) 846Returns the C<urxvt::term> object associated with this instance of the
832 if delete $self->{term}{_hook}[$htype]{$pkg}; 847extension. This member I<must not> be changed in any way.
833 } 848
834} 849=cut
835 850
836our $AUTOLOAD; 851our $AUTOLOAD;
837 852
838sub AUTOLOAD { 853sub AUTOLOAD {
839 $AUTOLOAD =~ /:([^:]+)$/ 854 $AUTOLOAD =~ /:([^:]+)$/
852 867
853sub DESTROY { 868sub DESTROY {
854 # nop 869 # nop
855} 870}
856 871
857# urxvt::destroy_hook 872# urxvt::destroy_hook (basically a cheap Guard:: implementation)
858 873
859sub urxvt::destroy_hook::DESTROY { 874sub urxvt::destroy_hook::DESTROY {
860 ${$_[0]}->(); 875 ${$_[0]}->();
861} 876}
862 877
863sub urxvt::destroy_hook(&) { 878sub urxvt::destroy_hook(&) {
864 bless \shift, urxvt::destroy_hook:: 879 bless \shift, urxvt::destroy_hook::
880}
881
882=item $self->enable ($hook_name => $cb[, $hook_name => $cb..])
883
884Dynamically enable the given hooks (named without the C<on_> prefix) for
885this extension, replacing any hook previously installed via C<enable> in
886this extension.
887
888This is useful when you want to overwrite time-critical hooks only
889temporarily.
890
891To install additional callbacks for the same hook, you can use the C<on>
892method of the C<urxvt::term> class.
893
894=item $self->disable ($hook_name[, $hook_name..])
895
896Dynamically disable the given hooks.
897
898=cut
899
900sub enable {
901 my ($self, %hook) = @_;
902 my $pkg = $self->{_pkg};
903
904 while (my ($name, $cb) = each %hook) {
905 my $htype = $HOOKTYPE{uc $name};
906 defined $htype
907 or Carp::croak "unsupported hook type '$name'";
908
909 $self->set_should_invoke ($htype, +1)
910 unless exists $self->{term}{_hook}[$htype]{$pkg};
911
912 $self->{term}{_hook}[$htype]{$pkg} = $cb;
913 }
914}
915
916sub disable {
917 my ($self, @hook) = @_;
918 my $pkg = $self->{_pkg};
919
920 for my $name (@hook) {
921 my $htype = $HOOKTYPE{uc $name};
922 defined $htype
923 or Carp::croak "unsupported hook type '$name'";
924
925 $self->set_should_invoke ($htype, -1)
926 if delete $self->{term}{_hook}[$htype]{$pkg};
927 }
928}
929
930=item $guard = $self->on ($hook_name => $cb[, $hook_name => $cb..])
931
932Similar to the C<enable> enable, but installs additional callbacks for
933the given hook(s) (that is, it doesn't replace existing callbacks), and
934returns a guard object. When the guard object is destroyed the callbacks
935are disabled again.
936
937=cut
938
939sub urxvt::extension::on_disable::DESTROY {
940 my $disable = shift;
941
942 my $term = delete $disable->{""};
943
944 while (my ($htype, $id) = each %$disable) {
945 delete $term->{_hook}[$htype]{$id};
946 $term->set_should_invoke ($htype, -1);
947 }
948}
949
950sub on {
951 my ($self, %hook) = @_;
952
953 my $term = $self->{term};
954
955 my %disable = ( "" => $term );
956
957 while (my ($name, $cb) = each %hook) {
958 my $htype = $HOOKTYPE{uc $name};
959 defined $htype
960 or Carp::croak "unsupported hook type '$name'";
961
962 $term->set_should_invoke ($htype, +1);
963 $term->{_hook}[$htype]{ $disable{$htype} = $cb+0 }
964 = sub { shift; $cb->($self, @_) }; # very ugly indeed
965 }
966
967 bless \%disable, "urxvt::extension::on_disable"
968}
969
970=item $self->bind_action ($hotkey, $action)
971
972=item $self->x_resource ($pattern)
973
974=item $self->x_resource_boolean ($pattern)
975
976These methods support an additional C<%> prefix for C<$action> or
977C<$pattern> when called on an extension object, compared to the
978C<urxvt::term> methods of the same name - see the description of these
979methods in the C<urxvt::term> class for details.
980
981=cut
982
983sub bind_action {
984 my ($self, $hotkey, $action) = @_;
985 $action =~ s/^%:/$_[0]{_name}:/;
986 $self->{term}->bind_action ($hotkey, $action)
865} 987}
866 988
867sub x_resource { 989sub x_resource {
868 my ($self, $name) = @_; 990 my ($self, $name) = @_;
869 $name =~ s/^%(\.|$)/$_[0]{_name}$1/; 991 $name =~ s/^%(\.|$)/$_[0]{_name}$1/;
873sub x_resource_boolean { 995sub x_resource_boolean {
874 my ($self, $name) = @_; 996 my ($self, $name) = @_;
875 $name =~ s/^%(\.|$)/$_[0]{_name}$1/; 997 $name =~ s/^%(\.|$)/$_[0]{_name}$1/;
876 $self->{term}->x_resource_boolean ($name) 998 $self->{term}->x_resource_boolean ($name)
877} 999}
1000
1001=back
1002
1003=cut
878 1004
879package urxvt::anyevent; 1005package urxvt::anyevent;
880 1006
881=head2 The C<urxvt::anyevent> Class 1007=head2 The C<urxvt::anyevent> Class
882 1008
1001 $ENV{URXVT_PERL_LIB}, 1127 $ENV{URXVT_PERL_LIB},
1002 "$ENV{HOME}/.urxvt/ext", 1128 "$ENV{HOME}/.urxvt/ext",
1003 "$LIBDIR/perl" 1129 "$LIBDIR/perl"
1004} 1130}
1005 1131
1006sub scan_meta { 1132# scan for available extensions and collect their metadata
1133sub scan_extensions {
1007 my ($self) = @_; 1134 my ($self) = @_;
1135
1136 return if exists $self->{meta};
1137
1008 my @libdirs = perl_libdirs $self; 1138 my @urxvtdirs = perl_libdirs $self;
1139 my @cpandirs = grep -d, map "$_/URxvt/Ext", @INC;
1009 1140
1010 return if $self->{meta_libdirs} eq join "\x00", @libdirs;
1011
1012 my %meta;
1013
1014 $self->{meta_libdirs} = join "\x00", @libdirs;
1015 $self->{meta} = \%meta; 1141 $self->{meta} = \my %meta;
1016 1142
1017 for my $dir (reverse @libdirs) { 1143 # first gather extensions
1144
1145 my $gather = sub {
1146 my ($dir, $core) = @_;
1147
1018 opendir my $fh, $dir 1148 opendir my $fh, $dir
1019 or next; 1149 or return;
1150
1020 for my $ext (readdir $fh) { 1151 for my $ext (readdir $fh) {
1021 $ext ne "." 1152 $ext !~ /^\./
1022 and $ext ne ".."
1023 and open my $fh, "<", "$dir/$ext"
1024 or next; 1153 or next;
1025 1154
1155 open my $fh, "<", "$dir/$ext"
1156 or next;
1157
1158 -f $fh
1159 or next;
1160
1161 $ext =~ s/\.uext$// or $core
1162 or next;
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, $desc];
1034 } 1174 }
1035 } elsif (/^\s*(?:#|$)/) { 1175 } elsif (/^\s*(?:#|$)/) {
1036 # skip other comments and empty lines 1176 # skip other comments and empty lines
1037 } else { 1177 } else {
1038 last; # stop parsing on first non-empty non-comment line 1178 last; # stop parsing on first non-empty non-comment line
1039 } 1179 }
1040 } 1180 }
1181
1182 $meta{ext}{$ext} = \%ext;
1041 } 1183 }
1184 };
1185
1186 $gather->($_, 0) for @cpandirs;
1187 $gather->($_, 1) for @urxvtdirs;
1188
1189 # and now merge resources
1190
1191 $meta{resource} = \my %resource;
1192
1193 while (my ($k, $v) = each %{ $meta{ext} }) {
1194 #TODO: should check for extensions overriding each other
1195 %resource = (%resource, %{ $v->{resource} });
1042 } 1196 }
1043} 1197}
1044 1198
1045=item $term = new urxvt::term $envhashref, $rxvtname, [arg...] 1199=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
1046 1200
1066} 1220}
1067 1221
1068=item $term->destroy 1222=item $term->destroy
1069 1223
1070Destroy the terminal object (close the window, free resources 1224Destroy the terminal object (close the window, free resources
1071etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event 1225etc.). Please note that urxvt will not exit as long as any event
1072watchers (timers, io watchers) are still active. 1226watchers (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 1227
1117=item $term->exec_async ($cmd[, @args]) 1228=item $term->exec_async ($cmd[, @args])
1118 1229
1119Works like the combination of the C<fork>/C<exec> builtins, which executes 1230Works like the combination of the C<fork>/C<exec> builtins, which executes
1120("starts") programs in the background. This function takes care of setting 1231("starts") programs in the background. This function takes care of setting
1205Returns the X-Resource for the given pattern, excluding the program or 1316Returns the X-Resource for the given pattern, excluding the program or
1206class name, i.e. C<< $term->x_resource ("boldFont") >> should return the 1317class 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 1318same value as used by this instance of rxvt-unicode. Returns C<undef> if no
1208resource with that pattern exists. 1319resource with that pattern exists.
1209 1320
1210Extensions that define extra resource or command line arguments also need 1321Extensions that define extra resources also need to call this method
1211to call this method to access their values. 1322to access their values.
1212 1323
1213If the method is called on an extension object (basically, from an 1324If the method is called on an extension object (basically, from an
1214extension), then the special prefix C<%.> will be replaced by the name of 1325extension), 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 1326the 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 1327extension name itself. This makes it possible to code extensions so you
1217can rename them and get a new set of commandline switches and resources 1328can rename them and get a new set of resources without having to change
1218without having to change the actual code. 1329the actual code.
1219 1330
1220This method should only be called during the C<on_start> hook, as there is 1331This 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 1332only one resource database per display, and later invocations might return
1222the wrong resources. 1333the wrong resources.
1223 1334
1235 my $res = &x_resource; 1346 my $res = &x_resource;
1236 1347
1237 $res =~ /^\s*(?:true|yes|on|1)\s*$/i ? 1 : defined $res && 0 1348 $res =~ /^\s*(?:true|yes|on|1)\s*$/i ? 1 : defined $res && 0
1238} 1349}
1239 1350
1240=item $success = $term->parse_keysym ($key, $octets) 1351=item $success = $term->bind_action ($key, $action)
1241 1352
1242Adds a key binding exactly as specified via a resource. See the 1353Adds a key binding exactly as specified via a C<keysym> resource. See the
1243C<keysym> resource in the @@RXVT_NAME@@(1) manpage. 1354C<keysym> resource in the urxvt(1) manpage.
1244 1355
1245=item $term->register_command ($keysym, $modifiermask, $string) 1356To add default bindings for actions, an extension should call C<<
1357->bind_action >> in its C<init> hook for every such binding. Doing it
1358in the C<init> hook allows users to override or remove the binding
1359again.
1246 1360
1247Adds a key binding. This is a lower level api compared to 1361Example: the C<searchable-scrollback> by default binds itself
1248C<parse_keysym>, as it expects a parsed key description, and can be 1362on C<Meta-s>, using C<< $self->bind_action >>, which calls C<<
1249used only inside either the C<on_init> hook, to add a binding, or the 1363$term->bind_action >>.
1250C<on_register_command> hook, to modify a parsed binding. 1364
1365 sub init {
1366 my ($self) = @_;
1367
1368 $self->bind_action ("M-s" => "%:start");
1369 }
1251 1370
1252=item $rend = $term->rstyle ([$new_rstyle]) 1371=item $rend = $term->rstyle ([$new_rstyle])
1253 1372
1254Return and optionally change the current rendition. Text that is output by 1373Return and optionally change the current rendition. Text that is output by
1255the terminal application will use this style. 1374the terminal application will use this style.
1413 1532
1414=item $term->scr_add_lines ($string) 1533=item $term->scr_add_lines ($string)
1415 1534
1416Write the given text string to the screen, as if output by the application 1535Write the given text string to the screen, as if output by the application
1417running inside the terminal. It may not contain command sequences (escape 1536running inside the terminal. It may not contain command sequences (escape
1418codes), but is free to use line feeds, carriage returns and tabs. The 1537codes - see C<cmd_parse> for that), but is free to use line feeds,
1419string is a normal text string, not in locale-dependent encoding. 1538carriage returns and tabs. The string is a normal text string, not in
1539locale-dependent encoding.
1420 1540
1421Normally its not a good idea to use this function, as programs might be 1541Normally 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 1542confused by changes in cursor position or scrolling. Its useful inside a
1423C<on_add_lines> hook, though. 1543C<on_add_lines> hook, though.
1424 1544
1432locale-specific encoding of the terminal and can contain command sequences 1552locale-specific encoding of the terminal and can contain command sequences
1433(escape codes) that will be interpreted. 1553(escape codes) that will be interpreted.
1434 1554
1435=item $term->tt_write ($octets) 1555=item $term->tt_write ($octets)
1436 1556
1437Write the octets given in C<$octets> to the tty (i.e. as program input). To 1557Write the octets given in C<$octets> to the tty (i.e. as user input
1558to the program, see C<cmd_parse> for the opposite direction). To pass
1438pass characters instead of octets, you should convert your strings first 1559characters instead of octets, you should convert your strings first to the
1439to the locale-specific encoding using C<< $term->locale_encode >>. 1560locale-specific encoding using C<< $term->locale_encode >>.
1561
1562=item $term->tt_write_user_input ($octets)
1563
1564Like C<tt_write>, but should be used when writing strings in response to
1565the user pressing a key, to invoke the additional actions requested by
1566the user for that case (C<tt_write> doesn't do that).
1567
1568The typical use case would be inside C<on_action> hooks.
1440 1569
1441=item $term->tt_paste ($octets) 1570=item $term->tt_paste ($octets)
1442 1571
1443Write the octets given in C<$octets> to the tty as a paste, converting NL to 1572Write the octets given in C<$octets> to the tty as a paste, converting NL to
1444CR and bracketing the data with control sequences if bracketed paste mode 1573CR and bracketing the data with control sequences if bracketed paste mode
1678} 1807}
1679 1808
1680sub urxvt::line::t { 1809sub urxvt::line::t {
1681 my ($self) = @_; 1810 my ($self) = @_;
1682 1811
1683 if (@_ > 1) 1812 if (@_ > 1) {
1684 {
1685 $self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol}) 1813 $self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
1686 for $self->{beg} .. $self->{end}; 1814 for $self->{beg} .. $self->{end};
1687 } 1815 }
1688 1816
1689 defined wantarray && 1817 defined wantarray &&
1690 substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}), 1818 substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),
1691 0, $self->{len} 1819 0, $self->{len}
1692} 1820}
1693 1821
1694sub urxvt::line::r { 1822sub urxvt::line::r {
1695 my ($self) = @_; 1823 my ($self) = @_;
1696 1824
1697 if (@_ > 1) 1825 if (@_ > 1) {
1698 {
1699 $self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol}) 1826 $self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
1700 for $self->{beg} .. $self->{end}; 1827 for $self->{beg} .. $self->{end};
1701 } 1828 }
1702 1829
1703 if (defined wantarray) { 1830 if (defined wantarray) {
1704 my $rend = [ 1831 my $rend = [
1705 map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end} 1832 map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}
1706 ]; 1833 ];

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