… | |
… | |
43 | |
43 | |
44 | Or by adding them to the resource for extensions loaded by default: |
44 | Or 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 | |
48 | Extensions may add resources on their own. Similarly to builtin |
48 | Extensions may add additional resources and C<actions>, i.e., methods |
49 | resources, these resources can also be specified on the command line |
49 | which can be bound to a key and invoked by the user. An extension can |
50 | as long options (with '.' replaced by '-'), in which case the |
50 | define the resources it support using so called META comments, |
51 | corresponding extension is loaded automatically. |
51 | described below. Similarly to builtin resources, extension resources |
|
|
52 | can also be specified on the command line as long options (with C<.> |
|
|
53 | replaced by C<->), in which case the corresponding extension is loaded |
|
|
54 | automatically. For this to work the extension B<must> define META |
|
|
55 | comments for its resources. |
52 | |
56 | |
53 | =head1 API DOCUMENTATION |
57 | =head1 API DOCUMENTATION |
54 | |
58 | |
55 | =head2 General API Considerations |
59 | =head2 General API Considerations |
56 | |
60 | |
… | |
… | |
108 | C<urxvt::term> class on this object. |
112 | C<urxvt::term> class on this object. |
109 | |
113 | |
110 | Additional methods only supported for extension objects are described in |
114 | Additional methods only supported for extension objects are described in |
111 | the C<urxvt::extension> section below. |
115 | the C<urxvt::extension> section below. |
112 | |
116 | |
|
|
117 | =head2 META comments |
|
|
118 | |
|
|
119 | Rxvt-unicode recognizes special meta comments in extensions that define |
|
|
120 | different types of metadata. |
|
|
121 | |
|
|
122 | Currently, it recognises only one such comment: |
|
|
123 | |
|
|
124 | =over 4 |
|
|
125 | |
|
|
126 | =item #:META:RESOURCE:name:type:desc |
|
|
127 | |
|
|
128 | The RESOURCE comment defines a resource used by the extension, where |
|
|
129 | C<name> is the resource name, C<type> is the resource type, C<boolean> |
|
|
130 | or C<string>, and C<desc> is the resource description. |
|
|
131 | |
|
|
132 | =back |
|
|
133 | |
113 | =head2 Hooks |
134 | =head2 Hooks |
114 | |
135 | |
115 | The following subroutines can be declared in extension files, and will be |
136 | The following subroutines can be declared in extension files, and will be |
116 | called whenever the relevant event happens. |
137 | called whenever the relevant event happens. |
117 | |
138 | |
… | |
… | |
282 | code is run after this hook, and takes precedence. |
303 | code is run after this hook, and takes precedence. |
283 | |
304 | |
284 | =item on_refresh_end $term |
305 | =item on_refresh_end $term |
285 | |
306 | |
286 | Called just after the screen gets redrawn. See C<on_refresh_begin>. |
307 | Called just after the screen gets redrawn. See C<on_refresh_begin>. |
|
|
308 | |
|
|
309 | =item on_action $term, $string |
|
|
310 | |
|
|
311 | Called whenever an action is invoked for the corresponding extension |
|
|
312 | (e.g. via a C<extension:string> builtin action bound to a key, see |
|
|
313 | description of the B<keysym> resource in the urxvt(1) manpage). The |
|
|
314 | event is simply the action string. Note that an action event is always |
|
|
315 | associated to a single extension. |
287 | |
316 | |
288 | =item on_user_command $term, $string *DEPRECATED* |
317 | =item on_user_command $term, $string *DEPRECATED* |
289 | |
318 | |
290 | Called whenever a user-configured event is being activated (e.g. via |
319 | Called whenever a user-configured event is being activated (e.g. via |
291 | a C<perl:string> action bound to a key, see description of the B<keysym> |
320 | a C<perl:string> action bound to a key, see description of the B<keysym> |
… | |
… | |
685 | @{ delete $TERM->{perl_ext_3} } |
714 | @{ delete $TERM->{perl_ext_3} } |
686 | ) { |
715 | ) { |
687 | if ($_ eq "default") { |
716 | if ($_ eq "default") { |
688 | |
717 | |
689 | $ext_arg{$_} = [] |
718 | $ext_arg{$_} = [] |
690 | for |
|
|
691 | qw(selection option-popup selection-popup readline), |
719 | for qw(selection option-popup selection-popup readline searchable-scrollback); |
692 | map $_->[0], values %{ $TERM->{meta}{binding} }; |
|
|
693 | |
720 | |
694 | for ($TERM->_keysym_resources) { |
721 | for ($TERM->_keysym_resources) { |
695 | next if /^(?:string|command|builtin|builtin-string|perl)/; |
722 | next if /^(?:string|command|builtin|builtin-string|perl)/; |
696 | next unless /^([A-Za-z0-9_\-]+):/; |
723 | next unless /^([A-Za-z0-9_\-]+):/; |
697 | |
724 | |
… | |
… | |
706 | } elsif (/^([^<]+)<(.*)>$/) { |
733 | } elsif (/^([^<]+)<(.*)>$/) { |
707 | push @{ $ext_arg{$1} }, $2; |
734 | push @{ $ext_arg{$1} }, $2; |
708 | |
735 | |
709 | } else { |
736 | } else { |
710 | $ext_arg{$_} ||= []; |
737 | $ext_arg{$_} ||= []; |
711 | } |
|
|
712 | } |
|
|
713 | |
|
|
714 | # now register default key bindings |
|
|
715 | for my $ext (sort keys %ext_arg) { |
|
|
716 | while (my ($k, $v) = each %{ $TERM->{meta}{ext}{$ext}{binding} }) { |
|
|
717 | $TERM->bind_action ($k, "$v->[0]:$v->[1]"); |
|
|
718 | } |
738 | } |
719 | } |
739 | } |
720 | |
740 | |
721 | for my $ext (sort keys %ext_arg) { |
741 | for my $ext (sort keys %ext_arg) { |
722 | my @files = grep -f $_, map "$_/$ext", @dirs; |
742 | my @files = grep -f $_, map "$_/$ext", @dirs; |
… | |
… | |
945 | } |
965 | } |
946 | |
966 | |
947 | bless \%disable, "urxvt::extension::on_disable" |
967 | bless \%disable, "urxvt::extension::on_disable" |
948 | } |
968 | } |
949 | |
969 | |
|
|
970 | =item $self->bind_action ($hotkey, $action) |
|
|
971 | |
950 | =item $self->x_resource ($pattern) |
972 | =item $self->x_resource ($pattern) |
951 | |
973 | |
952 | =item $self->x_resource_boolean ($pattern) |
974 | =item $self->x_resource_boolean ($pattern) |
953 | |
975 | |
954 | These methods support an additional C<%> prefix when called on an |
976 | These methods support an additional C<%> prefix for C<$action> or |
955 | extension object - see the description of these methods in the |
977 | C<$pattern> when called on an extension object, compared to the |
|
|
978 | C<urxvt::term> methods of the same name - see the description of these |
956 | C<urxvt::term> class for details. |
979 | methods in the C<urxvt::term> class for details. |
957 | |
980 | |
958 | =cut |
981 | =cut |
|
|
982 | |
|
|
983 | sub bind_action { |
|
|
984 | my ($self, $hotkey, $action) = @_; |
|
|
985 | $action =~ s/^%:/$_[0]{_name}:/; |
|
|
986 | $self->{term}->bind_action ($hotkey, $action) |
|
|
987 | } |
959 | |
988 | |
960 | sub x_resource { |
989 | sub x_resource { |
961 | my ($self, $name) = @_; |
990 | my ($self, $name) = @_; |
962 | $name =~ s/^%(\.|$)/$_[0]{_name}$1/; |
991 | $name =~ s/^%(\.|$)/$_[0]{_name}$1/; |
963 | $self->{term}->x_resource ($name) |
992 | $self->{term}->x_resource ($name) |
… | |
… | |
1104 | sub scan_extensions { |
1133 | sub scan_extensions { |
1105 | my ($self) = @_; |
1134 | my ($self) = @_; |
1106 | |
1135 | |
1107 | return if exists $self->{meta}; |
1136 | return if exists $self->{meta}; |
1108 | |
1137 | |
1109 | my @libdirs = perl_libdirs $self; |
1138 | my @urxvtdirs = perl_libdirs $self; |
|
|
1139 | my @cpandirs = grep -d, map "$_/URxvt/Ext", @INC; |
1110 | |
1140 | |
1111 | # return if $self->{meta_libdirs} eq join "\x00", @libdirs;#d# |
|
|
1112 | |
|
|
1113 | # $self->{meta_libdirs} = join "\x00", @libdirs;#d# |
|
|
1114 | $self->{meta} = \my %meta; |
1141 | $self->{meta} = \my %meta; |
1115 | |
1142 | |
1116 | # first gather extensions |
1143 | # first gather extensions |
1117 | for my $dir (reverse @libdirs) { |
1144 | |
|
|
1145 | my $gather = sub { |
|
|
1146 | my ($dir, $core) = @_; |
|
|
1147 | |
1118 | opendir my $fh, $dir |
1148 | opendir my $fh, $dir |
1119 | or next; |
1149 | or return; |
|
|
1150 | |
1120 | for my $ext (readdir $fh) { |
1151 | for my $ext (readdir $fh) { |
1121 | $ext !~ /^\./ |
1152 | $ext !~ /^\./ |
|
|
1153 | or next; |
|
|
1154 | |
1122 | 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 |
1123 | or next; |
1162 | or next; |
1124 | |
1163 | |
1125 | my %ext = (dir => $dir); |
1164 | my %ext = (dir => $dir); |
1126 | |
1165 | |
1127 | while (<$fh>) { |
1166 | while (<$fh>) { |
… | |
… | |
1131 | if ($pattern =~ /[^a-zA-Z0-9\-\.]/) { |
1170 | if ($pattern =~ /[^a-zA-Z0-9\-\.]/) { |
1132 | warn "$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"; |
1133 | } else { |
1172 | } else { |
1134 | $ext{resource}{$pattern} = [$ext, $type, $desc]; |
1173 | $ext{resource}{$pattern} = [$ext, $type, $desc]; |
1135 | } |
1174 | } |
1136 | } elsif (/^#:META:BINDING:(.*)/) { |
|
|
1137 | my ($keysym, $action) = split /:/, $1; |
|
|
1138 | $ext{binding}{$keysym} = [$ext, $action]; |
|
|
1139 | } elsif (/^\s*(?:#|$)/) { |
1175 | } elsif (/^\s*(?:#|$)/) { |
1140 | # skip other comments and empty lines |
1176 | # skip other comments and empty lines |
1141 | } else { |
1177 | } else { |
1142 | last; # stop parsing on first non-empty non-comment line |
1178 | last; # stop parsing on first non-empty non-comment line |
1143 | } |
1179 | } |
1144 | } |
1180 | } |
1145 | |
1181 | |
1146 | $meta{ext}{$ext} = \%ext; |
1182 | $meta{ext}{$ext} = \%ext; |
1147 | } |
1183 | } |
1148 | } |
1184 | }; |
1149 | |
1185 | |
|
|
1186 | $gather->($_, 0) for @cpandirs; |
|
|
1187 | $gather->($_, 1) for @urxvtdirs; |
|
|
1188 | |
1150 | # and now merge resources and bindings |
1189 | # and now merge resources |
|
|
1190 | |
|
|
1191 | $meta{resource} = \my %resource; |
|
|
1192 | |
1151 | while (my ($k, $v) = each %{ $meta{ext} }) { |
1193 | while (my ($k, $v) = each %{ $meta{ext} }) { |
1152 | #TODO: should check for extensions overriding each other |
1194 | #TODO: should check for extensions overriding each other |
1153 | %{ $meta{resource} } = (%{ $meta{resource} }, %{ $v->{resource} }); |
1195 | %resource = (%resource, %{ $v->{resource} }); |
1154 | %{ $meta{binding} } = (%{ $meta{binding} }, %{ $v->{binding} }); |
|
|
1155 | } |
1196 | } |
1156 | } |
1197 | } |
1157 | |
1198 | |
1158 | =item $term = new urxvt::term $envhashref, $rxvtname, [arg...] |
1199 | =item $term = new urxvt::term $envhashref, $rxvtname, [arg...] |
1159 | |
1200 | |
… | |
… | |
1282 | |
1323 | |
1283 | If the method is called on an extension object (basically, from an |
1324 | If the method is called on an extension object (basically, from an |
1284 | extension), then the special prefix C<%.> will be replaced by the name of |
1325 | extension), then the special prefix C<%.> will be replaced by the name of |
1285 | the extension and a dot, and the lone string C<%> will be replaced by the |
1326 | the extension and a dot, and the lone string C<%> will be replaced by the |
1286 | extension name itself. This makes it possible to code extensions so you |
1327 | extension name itself. This makes it possible to code extensions so you |
1287 | can rename them and get a new set of commandline switches and resources |
1328 | can rename them and get a new set of resources without having to change |
1288 | without having to change the actual code. |
1329 | the actual code. |
1289 | |
1330 | |
1290 | This method should only be called during the C<on_start> hook, as there is |
1331 | This method should only be called during the C<on_start> hook, as there is |
1291 | only one resource database per display, and later invocations might return |
1332 | only one resource database per display, and later invocations might return |
1292 | the wrong resources. |
1333 | the wrong resources. |
1293 | |
1334 | |
… | |
… | |
1305 | my $res = &x_resource; |
1346 | my $res = &x_resource; |
1306 | |
1347 | |
1307 | $res =~ /^\s*(?:true|yes|on|1)\s*$/i ? 1 : defined $res && 0 |
1348 | $res =~ /^\s*(?:true|yes|on|1)\s*$/i ? 1 : defined $res && 0 |
1308 | } |
1349 | } |
1309 | |
1350 | |
1310 | =item $success = $term->bind_action ($key, $octets) |
1351 | =item $success = $term->bind_action ($key, $action) |
1311 | |
1352 | |
1312 | Adds a key binding exactly as specified via a C<keysym> resource. See the |
1353 | Adds a key binding exactly as specified via a C<keysym> resource. See the |
1313 | C<keysym> resource in the urxvt(1) manpage. |
1354 | C<keysym> resource in the urxvt(1) manpage. |
|
|
1355 | |
|
|
1356 | To add default bindings for actions, an extension should call C<< |
|
|
1357 | ->bind_action >> in its C<init> hook for every such binding. Doing it |
|
|
1358 | in the C<init> hook allows users to override or remove the binding |
|
|
1359 | again. |
|
|
1360 | |
|
|
1361 | Example: the C<searchable-scrollback> by default binds itself |
|
|
1362 | on C<Meta-s>, using C<< $self->bind_action >>, which calls C<< |
|
|
1363 | $term->bind_action >>. |
|
|
1364 | |
|
|
1365 | sub init { |
|
|
1366 | my ($self) = @_; |
|
|
1367 | |
|
|
1368 | $self->bind_action ("M-s" => "%:start"); |
|
|
1369 | } |
1314 | |
1370 | |
1315 | =item $rend = $term->rstyle ([$new_rstyle]) |
1371 | =item $rend = $term->rstyle ([$new_rstyle]) |
1316 | |
1372 | |
1317 | Return and optionally change the current rendition. Text that is output by |
1373 | Return and optionally change the current rendition. Text that is output by |
1318 | the terminal application will use this style. |
1374 | the terminal application will use this style. |
… | |
… | |
1476 | |
1532 | |
1477 | =item $term->scr_add_lines ($string) |
1533 | =item $term->scr_add_lines ($string) |
1478 | |
1534 | |
1479 | Write the given text string to the screen, as if output by the application |
1535 | Write the given text string to the screen, as if output by the application |
1480 | running inside the terminal. It may not contain command sequences (escape |
1536 | running inside the terminal. It may not contain command sequences (escape |
1481 | codes), but is free to use line feeds, carriage returns and tabs. The |
1537 | codes - see C<cmd_parse> for that), but is free to use line feeds, |
1482 | string is a normal text string, not in locale-dependent encoding. |
1538 | carriage returns and tabs. The string is a normal text string, not in |
|
|
1539 | locale-dependent encoding. |
1483 | |
1540 | |
1484 | Normally its not a good idea to use this function, as programs might be |
1541 | Normally its not a good idea to use this function, as programs might be |
1485 | confused by changes in cursor position or scrolling. Its useful inside a |
1542 | confused by changes in cursor position or scrolling. Its useful inside a |
1486 | C<on_add_lines> hook, though. |
1543 | C<on_add_lines> hook, though. |
1487 | |
1544 | |
… | |
… | |
1495 | locale-specific encoding of the terminal and can contain command sequences |
1552 | locale-specific encoding of the terminal and can contain command sequences |
1496 | (escape codes) that will be interpreted. |
1553 | (escape codes) that will be interpreted. |
1497 | |
1554 | |
1498 | =item $term->tt_write ($octets) |
1555 | =item $term->tt_write ($octets) |
1499 | |
1556 | |
1500 | Write the octets given in C<$octets> to the tty (i.e. as program input). To |
1557 | Write the octets given in C<$octets> to the tty (i.e. as user input |
|
|
1558 | to the program, see C<cmd_parse> for the opposite direction). To pass |
1501 | pass characters instead of octets, you should convert your strings first |
1559 | characters instead of octets, you should convert your strings first to the |
1502 | to the locale-specific encoding using C<< $term->locale_encode >>. |
1560 | locale-specific encoding using C<< $term->locale_encode >>. |
1503 | |
1561 | |
1504 | =item $term->tt_write_user_input ($octets) |
1562 | =item $term->tt_write_user_input ($octets) |
1505 | |
1563 | |
1506 | Like C<tt_write>, but should be used when writing strings in response to |
1564 | Like C<tt_write>, but should be used when writing strings in response to |
1507 | the user pressing a key, to invoke the additional actions requested by |
1565 | the user pressing a key, to invoke the additional actions requested by |