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Comparing rxvt-unicode/src/urxvt.pm (file contents):
Revision 1.244 by sf-exg, Mon Oct 13 12:17:48 2014 UTC vs.
Revision 1.254 by sf-exg, Tue Mar 17 09:23:08 2015 UTC

45 45
46 URxvt.perl-ext-common: default,selection-autotransform 46 URxvt.perl-ext-common: default,selection-autotransform
47 47
48Extensions may add additional resources and C<actions>, i.e., methods 48Extensions may add additional resources and C<actions>, i.e., methods
49which can be bound to a key and invoked by the user. An extension can 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 50define the resources it support using so called META comments,
51more actions it provides using so called META comments, described
52below. Similarly to builtin resources, extension resources can also be 51described below. Similarly to builtin resources, extension resources
53specified on the command line as long options (with C<.> replaced by 52can also be specified on the command line as long options (with C<.>
54C<->), in which case the corresponding extension is loaded 53replaced by C<->), in which case the corresponding extension is loaded
55automatically. For this to work the extension B<must> define META 54automatically. For this to work the extension B<must> define META
56comments for its resources. 55comments for its resources.
57 56
58=head1 API DOCUMENTATION 57=head1 API DOCUMENTATION
59 58
115Additional methods only supported for extension objects are described in 114Additional methods only supported for extension objects are described in
116the C<urxvt::extension> section below. 115the C<urxvt::extension> section below.
117 116
118=head2 META comments 117=head2 META comments
119 118
120rxvt-unicode recognizes special comments in extensions that define 119Rxvt-unicode recognizes special meta comments in extensions that define
121different types of metadata: 120different types of metadata.
121
122Currently, it recognises only one such comment:
122 123
123=over 4 124=over 4
124 125
125=item #:META:RESOURCE:name:type:desc 126=item #:META:RESOURCE:name:type:desc
126 127
127The RESOURCE comment defines a resource used by the extension, where 128The RESOURCE comment defines a resource used by the extension, where
128C<name> is the resource name, C<type> is the resource type, C<boolean> 129C<name> is the resource name, C<type> is the resource type, C<boolean>
129or C<string>, and C<desc> is the resource description. 130or C<string>, and C<desc> is the resource description.
130
131=item #:META:BINDING:sym:action
132
133The BINDING comment defines a default binding for an action provided
134by the extension, where C<sym> is the key combination that triggers
135the action, whose format is defined in the description of the
136B<keysym> resource in the urxvt(1) manpage, and C<action> is the name
137of the action method.
138 131
139=back 132=back
140 133
141=head2 Hooks 134=head2 Hooks
142 135
721 @{ delete $TERM->{perl_ext_3} } 714 @{ delete $TERM->{perl_ext_3} }
722 ) { 715 ) {
723 if ($_ eq "default") { 716 if ($_ eq "default") {
724 717
725 $ext_arg{$_} = [] 718 $ext_arg{$_} = []
726 for
727 qw(selection option-popup selection-popup readline), 719 for qw(selection option-popup selection-popup readline searchable-scrollback);
728 map $_->[0], values %{ $TERM->{meta}{binding} };
729 720
730 for ($TERM->_keysym_resources) { 721 for ($TERM->_keysym_resources) {
731 next if /^(?:string|command|builtin|builtin-string|perl)/; 722 next if /^(?:string|command|builtin|builtin-string|perl)/;
732 next unless /^([A-Za-z0-9_\-]+):/; 723 next unless /^([A-Za-z0-9_\-]+):/;
733 724
742 } elsif (/^([^<]+)<(.*)>$/) { 733 } elsif (/^([^<]+)<(.*)>$/) {
743 push @{ $ext_arg{$1} }, $2; 734 push @{ $ext_arg{$1} }, $2;
744 735
745 } else { 736 } else {
746 $ext_arg{$_} ||= []; 737 $ext_arg{$_} ||= [];
747 }
748 }
749
750 # now register default key bindings
751 for my $ext (sort keys %ext_arg) {
752 while (my ($k, $v) = each %{ $TERM->{meta}{ext}{$ext}{binding} }) {
753 $TERM->bind_action ($k, "$v->[0]:$v->[1]");
754 } 738 }
755 } 739 }
756 740
757 for my $ext (sort keys %ext_arg) { 741 for my $ext (sort keys %ext_arg) {
758 my @files = grep -f $_, map "$_/$ext", @dirs; 742 my @files = grep -f $_, map "$_/$ext", @dirs;
981 } 965 }
982 966
983 bless \%disable, "urxvt::extension::on_disable" 967 bless \%disable, "urxvt::extension::on_disable"
984} 968}
985 969
970=item $self->bind_action ($hotkey, $action)
971
986=item $self->x_resource ($pattern) 972=item $self->x_resource ($pattern)
987 973
988=item $self->x_resource_boolean ($pattern) 974=item $self->x_resource_boolean ($pattern)
989 975
990These methods support an additional C<%> prefix when called on an 976These methods support an additional C<%> prefix for C<$action> or
991extension object - see the description of these methods in the 977C<$pattern> when called on an extension object, compared to the
978C<urxvt::term> methods of the same name - see the description of these
992C<urxvt::term> class for details. 979methods in the C<urxvt::term> class for details.
993 980
994=cut 981=cut
982
983sub bind_action {
984 my ($self, $hotkey, $action) = @_;
985 $action =~ s/^%:/$_[0]{_name}:/;
986 $self->{term}->bind_action ($hotkey, $action)
987}
995 988
996sub x_resource { 989sub x_resource {
997 my ($self, $name) = @_; 990 my ($self, $name) = @_;
998 $name =~ s/^%(\.|$)/$_[0]{_name}$1/; 991 $name =~ s/^%(\.|$)/$_[0]{_name}$1/;
999 $self->{term}->x_resource ($name) 992 $self->{term}->x_resource ($name)
1140sub scan_extensions { 1133sub scan_extensions {
1141 my ($self) = @_; 1134 my ($self) = @_;
1142 1135
1143 return if exists $self->{meta}; 1136 return if exists $self->{meta};
1144 1137
1145 my @libdirs = perl_libdirs $self; 1138 my @urxvtdirs = perl_libdirs $self;
1139# my @cpandirs = grep -d, map "$_/URxvt/Ext", @INC;
1146 1140
1147# return if $self->{meta_libdirs} eq join "\x00", @libdirs;#d#
1148
1149# $self->{meta_libdirs} = join "\x00", @libdirs;#d#
1150 $self->{meta} = \my %meta; 1141 $self->{meta} = \my %meta;
1151 1142
1152 # first gather extensions 1143 # first gather extensions
1153 for my $dir (reverse @libdirs) { 1144
1145 my $gather = sub {
1146 my ($dir, $core) = @_;
1147
1154 opendir my $fh, $dir 1148 opendir my $fh, $dir
1155 or next; 1149 or return;
1150
1156 for my $ext (readdir $fh) { 1151 for my $ext (readdir $fh) {
1157 $ext !~ /^\./ 1152 $ext !~ /^\./
1153 or next;
1154
1158 and open my $fh, "<", "$dir/$ext" 1155 open my $fh, "<", "$dir/$ext"
1156 or next;
1157
1158 -f $fh
1159 or next;
1160
1161 $ext =~ s/\.uext$// or $core
1159 or next; 1162 or next;
1160 1163
1161 my %ext = (dir => $dir); 1164 my %ext = (dir => $dir);
1162 1165
1163 while (<$fh>) { 1166 while (<$fh>) {
1167 if ($pattern =~ /[^a-zA-Z0-9\-\.]/) { 1170 if ($pattern =~ /[^a-zA-Z0-9\-\.]/) {
1168 warn "$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";
1169 } else { 1172 } else {
1170 $ext{resource}{$pattern} = [$ext, $type, $desc]; 1173 $ext{resource}{$pattern} = [$ext, $type, $desc];
1171 } 1174 }
1172 } elsif (/^#:META:BINDING:(.*)/) {
1173 my ($keysym, $action) = split /:/, $1;
1174 $ext{binding}{$keysym} = [$ext, $action];
1175 } elsif (/^\s*(?:#|$)/) { 1175 } elsif (/^\s*(?:#|$)/) {
1176 # skip other comments and empty lines 1176 # skip other comments and empty lines
1177 } else { 1177 } else {
1178 last; # stop parsing on first non-empty non-comment line 1178 last; # stop parsing on first non-empty non-comment line
1179 } 1179 }
1180 } 1180 }
1181 1181
1182 $meta{ext}{$ext} = \%ext; 1182 $meta{ext}{$ext} = \%ext;
1183 } 1183 }
1184 } 1184 };
1185 1185
1186# $gather->($_, 0) for @cpandirs;
1187 $gather->($_, 1) for @urxvtdirs;
1188
1186 # and now merge resources and bindings 1189 # and now merge resources
1190
1191 $meta{resource} = \my %resource;
1192
1187 while (my ($k, $v) = each %{ $meta{ext} }) { 1193 while (my ($k, $v) = each %{ $meta{ext} }) {
1188 #TODO: should check for extensions overriding each other 1194 #TODO: should check for extensions overriding each other
1189 %{ $meta{resource} } = (%{ $meta{resource} }, %{ $v->{resource} }); 1195 %resource = (%resource, %{ $v->{resource} });
1190 %{ $meta{binding} } = (%{ $meta{binding} }, %{ $v->{binding} });
1191 } 1196 }
1192} 1197}
1193 1198
1194=item $term = new urxvt::term $envhashref, $rxvtname, [arg...] 1199=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
1195 1200
1341 my $res = &x_resource; 1346 my $res = &x_resource;
1342 1347
1343 $res =~ /^\s*(?:true|yes|on|1)\s*$/i ? 1 : defined $res && 0 1348 $res =~ /^\s*(?:true|yes|on|1)\s*$/i ? 1 : defined $res && 0
1344} 1349}
1345 1350
1351=item $action = $term->lookup_keysym ($keysym, $state)
1352
1353Returns the action bound to key combination C<($keysym, $state)>,
1354if a binding for it exists, and C<undef> otherwise.
1355
1346=item $success = $term->bind_action ($key, $octets) 1356=item $success = $term->bind_action ($key, $action)
1347 1357
1348Adds a key binding exactly as specified via a C<keysym> resource. See the 1358Adds a key binding exactly as specified via a C<keysym> resource. See the
1349C<keysym> resource in the urxvt(1) manpage. 1359C<keysym> resource in the urxvt(1) manpage.
1360
1361To add default bindings for actions, an extension should call C<<
1362->bind_action >> in its C<init> hook for every such binding. Doing it
1363in the C<init> hook allows users to override or remove the binding
1364again.
1365
1366Example: the C<searchable-scrollback> by default binds itself
1367on C<Meta-s>, using C<< $self->bind_action >>, which calls C<<
1368$term->bind_action >>.
1369
1370 sub init {
1371 my ($self) = @_;
1372
1373 $self->bind_action ("M-s" => "%:start");
1374 }
1350 1375
1351=item $rend = $term->rstyle ([$new_rstyle]) 1376=item $rend = $term->rstyle ([$new_rstyle])
1352 1377
1353Return and optionally change the current rendition. Text that is output by 1378Return and optionally change the current rendition. Text that is output by
1354the terminal application will use this style. 1379the terminal application will use this style.
1512 1537
1513=item $term->scr_add_lines ($string) 1538=item $term->scr_add_lines ($string)
1514 1539
1515Write the given text string to the screen, as if output by the application 1540Write the given text string to the screen, as if output by the application
1516running inside the terminal. It may not contain command sequences (escape 1541running inside the terminal. It may not contain command sequences (escape
1517codes), but is free to use line feeds, carriage returns and tabs. The 1542codes - see C<cmd_parse> for that), but is free to use line feeds,
1518string is a normal text string, not in locale-dependent encoding. 1543carriage returns and tabs. The string is a normal text string, not in
1544locale-dependent encoding.
1519 1545
1520Normally its not a good idea to use this function, as programs might be 1546Normally its not a good idea to use this function, as programs might be
1521confused by changes in cursor position or scrolling. Its useful inside a 1547confused by changes in cursor position or scrolling. Its useful inside a
1522C<on_add_lines> hook, though. 1548C<on_add_lines> hook, though.
1523 1549
1531locale-specific encoding of the terminal and can contain command sequences 1557locale-specific encoding of the terminal and can contain command sequences
1532(escape codes) that will be interpreted. 1558(escape codes) that will be interpreted.
1533 1559
1534=item $term->tt_write ($octets) 1560=item $term->tt_write ($octets)
1535 1561
1536Write the octets given in C<$octets> to the tty (i.e. as program input). To 1562Write the octets given in C<$octets> to the tty (i.e. as user input
1563to the program, see C<cmd_parse> for the opposite direction). To pass
1537pass characters instead of octets, you should convert your strings first 1564characters instead of octets, you should convert your strings first to the
1538to the locale-specific encoding using C<< $term->locale_encode >>. 1565locale-specific encoding using C<< $term->locale_encode >>.
1539 1566
1540=item $term->tt_write_user_input ($octets) 1567=item $term->tt_write_user_input ($octets)
1541 1568
1542Like C<tt_write>, but should be used when writing strings in response to 1569Like C<tt_write>, but should be used when writing strings in response to
1543the user pressing a key, to invoke the additional actions requested by 1570the user pressing a key, to invoke the additional actions requested by
1674Requests a screen refresh. At the next opportunity, rxvt-unicode will 1701Requests a screen refresh. At the next opportunity, rxvt-unicode will
1675compare the on-screen display with its stored representation. If they 1702compare the on-screen display with its stored representation. If they
1676differ, it redraws the differences. 1703differ, it redraws the differences.
1677 1704
1678Used after changing terminal contents to display them. 1705Used after changing terminal contents to display them.
1706
1707=item $term->refresh_check
1708
1709Checks if a refresh has been requested and, if so, schedules one.
1679 1710
1680=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]]) 1711=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
1681 1712
1682Returns the text of the entire row with number C<$row_number>. Row C<< $term->top_row >> 1713Returns the text of the entire row with number C<$row_number>. Row C<< $term->top_row >>
1683is the topmost terminal line, row C<< $term->nrow-1 >> is the bottommost 1714is the topmost terminal line, row C<< $term->nrow-1 >> is the bottommost

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