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Revision 1.239 by sf-exg, Wed May 28 15:51:29 2014 UTC vs.
Revision 1.257 by root, Thu Jul 13 10:31:27 2017 UTC

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
106C<urxvt::term> class on this object. 112C<urxvt::term> class on this object.
107 113
108Additional methods only supported for extension objects are described in 114Additional methods only supported for extension objects are described in
109the C<urxvt::extension> section below. 115the C<urxvt::extension> section below.
110 116
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:
123
124=over 4
125
126=item #:META:RESOURCE:name:type:desc
127
128The RESOURCE comment defines a resource used by the extension, where
129C<name> is the resource name, C<type> is the resource type, C<boolean>
130or C<string>, and C<desc> is the resource description.
131
132=back
133
111=head2 Hooks 134=head2 Hooks
112 135
113The following subroutines can be declared in extension files, and will be 136The following subroutines can be declared in extension files, and will be
114called whenever the relevant event happens. 137called whenever the relevant event happens.
115 138
280code is run after this hook, and takes precedence. 303code is run after this hook, and takes precedence.
281 304
282=item on_refresh_end $term 305=item on_refresh_end $term
283 306
284Called just after the screen gets redrawn. See C<on_refresh_begin>. 307Called just after the screen gets redrawn. See C<on_refresh_begin>.
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.
285 316
286=item on_user_command $term, $string *DEPRECATED* 317=item on_user_command $term, $string *DEPRECATED*
287 318
288Called whenever a user-configured event is being activated (e.g. via 319Called whenever a user-configured event is being activated (e.g. via
289a C<perl:string> action bound to a key, see description of the B<keysym> 320a C<perl:string> action bound to a key, see description of the B<keysym>
480ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify, 511ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
481CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest, 512CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
482SelectionNotify, ColormapNotify, ClientMessage, MappingNotify 513SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
483 514
484Various constants for use in X calls and event processing. 515Various constants for use in X calls and event processing.
516
517=item urxvt::PrivMode_132, PrivMode_132OK, PrivMode_rVideo, PrivMode_relOrigin,
518PrivMode_Screen, PrivMode_Autowrap, PrivMode_aplCUR, PrivMode_aplKP,
519PrivMode_HaveBackSpace, PrivMode_BackSpace, PrivMode_ShiftKeys,
520PrivMode_VisibleCursor, PrivMode_MouseX10, PrivMode_MouseX11,
521PrivMode_scrollBar, PrivMode_TtyOutputInh, PrivMode_Keypress,
522PrivMode_smoothScroll, PrivMode_vt52, PrivMode_LFNL, PrivMode_MouseBtnEvent,
523PrivMode_MouseAnyEvent, PrivMode_BracketPaste, PrivMode_ExtModeMouse,
524PrivMode_ExtMouseRight, PrivMode_BlinkingCursor, PrivMode_mouse_report,
525PrivMode_Default
526
527Constants for checking DEC private modes.
485 528
486=back 529=back
487 530
488=head2 RENDITION 531=head2 RENDITION
489 532
555no warnings 'utf8'; 598no warnings 'utf8';
556 599
557sub parse_resource { 600sub parse_resource {
558 my ($term, $name, $isarg, $longopt, $flag, $value) = @_; 601 my ($term, $name, $isarg, $longopt, $flag, $value) = @_;
559 602
560 $name =~ y/-/./ if $isarg;
561
562 $term->scan_extensions; 603 $term->scan_extensions;
563 604
564 my $r = $term->{meta}{resource}; 605 my $r = $term->{meta}{resource};
565 keys %$r; # reset iterator 606 keys %$r; # reset iterator
566 while (my ($pattern, $v) = each %$r) { 607 while (my ($k, $v) = each %$r) {
567 if ( 608 my $pattern = $k;
609 $pattern =~ y/./-/ if $isarg;
610 my $prefix = $name;
611 my $suffix;
568 $pattern =~ /\.$/ 612 if ($pattern =~ /\-$/) {
569 ? $pattern eq substr $name, 0, length $pattern 613 $prefix = substr $name, 0, length $pattern;
570 : $pattern eq $name 614 $suffix = substr $name, length $pattern;
571 ) { 615 }
616 if ($pattern eq $prefix) {
572 $name = "$urxvt::RESCLASS.$name"; 617 $name = "$urxvt::RESCLASS.$k$suffix";
573 618
574 push @{ $term->{perl_ext_3} }, $v->[0]; 619 push @{ $term->{perl_ext_3} }, $v->[0];
620
621 return 1 unless $isarg;
575 622
576 if ($v->[1] eq "boolean") { 623 if ($v->[1] eq "boolean") {
577 $term->put_option_db ($name, $flag ? "true" : "false"); 624 $term->put_option_db ($name, $flag ? "true" : "false");
578 return 1; 625 return 1;
579 } else { 626 } else {
675 @TERM_EXT = (); 722 @TERM_EXT = ();
676 $TERM->register_package ($_) for @pkg; 723 $TERM->register_package ($_) for @pkg;
677 } 724 }
678 725
679 for ( 726 for (
680 grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2 727 (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2),
728 @{ delete $TERM->{perl_ext_3} }
681 ) { 729 ) {
682 if ($_ eq "default") { 730 if ($_ eq "default") {
683 731
684 $ext_arg{$_} = [] 732 $ext_arg{$_} = []
685 for
686 qw(selection option-popup selection-popup readline), 733 for qw(selection option-popup selection-popup readline searchable-scrollback);
687 map $_->[0], values %{ $TERM->{meta}{binding} },
688 @{ delete $TERM->{perl_ext_3} };
689 734
690 for ($TERM->_keysym_resources) { 735 for ($TERM->_keysym_resources) {
691 next if /^(?:string|command|builtin|builtin-string|perl)/; 736 next if /^(?:string|command|builtin|builtin-string|perl)/;
692 next unless /^([A-Za-z0-9_\-]+):/; 737 next unless /^([A-Za-z0-9_\-]+):/;
693 738
694 my $ext = $1; 739 my $ext = $1;
695 $ext =~ y/-/_/;
696 740
697 $ext_arg{$ext} = []; 741 $ext_arg{$ext} = [];
698 } 742 }
699 743
700 } elsif (/^-(.*)$/) { 744 } elsif (/^-(.*)$/) {
703 } elsif (/^([^<]+)<(.*)>$/) { 747 } elsif (/^([^<]+)<(.*)>$/) {
704 push @{ $ext_arg{$1} }, $2; 748 push @{ $ext_arg{$1} }, $2;
705 749
706 } else { 750 } else {
707 $ext_arg{$_} ||= []; 751 $ext_arg{$_} ||= [];
708 }
709 }
710
711 # now register default key bindings
712 for my $ext (sort keys %ext_arg) {
713 while (my ($k, $v) = each %{ $TERM->{meta}{ext}{$ext}{binding} }) {
714 $TERM->bind_action ($k, "$v->[0]:$v->[1]");
715 } 752 }
716 } 753 }
717 754
718 for my $ext (sort keys %ext_arg) { 755 for my $ext (sort keys %ext_arg) {
719 my @files = grep -f $_, map "$_/$ext", @dirs; 756 my @files = grep -f $_, map "$_/$ext", @dirs;
942 } 979 }
943 980
944 bless \%disable, "urxvt::extension::on_disable" 981 bless \%disable, "urxvt::extension::on_disable"
945} 982}
946 983
984=item $self->bind_action ($hotkey, $action)
985
947=item $self->x_resource ($pattern) 986=item $self->x_resource ($pattern)
948 987
949=item $self->x_resource_boolean ($pattern) 988=item $self->x_resource_boolean ($pattern)
950 989
951These methods support an additional C<%> prefix when called on an 990These methods support an additional C<%> prefix for C<$action> or
952extension object - see the description of these methods in the 991C<$pattern> when called on an extension object, compared to the
992C<urxvt::term> methods of the same name - see the description of these
953C<urxvt::term> class for details. 993methods in the C<urxvt::term> class for details.
954 994
955=cut 995=cut
996
997sub bind_action {
998 my ($self, $hotkey, $action) = @_;
999 $action =~ s/^%:/$_[0]{_name}:/;
1000 $self->{term}->bind_action ($hotkey, $action)
1001}
956 1002
957sub x_resource { 1003sub x_resource {
958 my ($self, $name) = @_; 1004 my ($self, $name) = @_;
959 $name =~ s/^%(\.|$)/$_[0]{_name}$1/; 1005 $name =~ s/^%(\.|$)/$_[0]{_name}$1/;
960 $self->{term}->x_resource ($name) 1006 $self->{term}->x_resource ($name)
1101sub scan_extensions { 1147sub scan_extensions {
1102 my ($self) = @_; 1148 my ($self) = @_;
1103 1149
1104 return if exists $self->{meta}; 1150 return if exists $self->{meta};
1105 1151
1106 my @libdirs = perl_libdirs $self; 1152 my @urxvtdirs = perl_libdirs $self;
1153# my @cpandirs = grep -d, map "$_/URxvt/Ext", @INC;
1107 1154
1108# return if $self->{meta_libdirs} eq join "\x00", @libdirs;#d#
1109
1110# $self->{meta_libdirs} = join "\x00", @libdirs;#d#
1111 $self->{meta} = \my %meta; 1155 $self->{meta} = \my %meta;
1112 1156
1113 # first gather extensions 1157 # first gather extensions
1114 for my $dir (reverse @libdirs) { 1158
1159 my $gather = sub {
1160 my ($dir, $core) = @_;
1161
1115 opendir my $fh, $dir 1162 opendir my $fh, $dir
1116 or next; 1163 or return;
1164
1117 for my $ext (readdir $fh) { 1165 for my $ext (readdir $fh) {
1118 $ext !~ /^\./ 1166 $ext !~ /^\./
1167 or next;
1168
1119 and open my $fh, "<", "$dir/$ext" 1169 open my $fh, "<", "$dir/$ext"
1170 or next;
1171
1172 -f $fh
1173 or next;
1174
1175 $ext =~ s/\.uext$// or $core
1120 or next; 1176 or next;
1121 1177
1122 my %ext = (dir => $dir); 1178 my %ext = (dir => $dir);
1123 1179
1124 while (<$fh>) { 1180 while (<$fh>) {
1128 if ($pattern =~ /[^a-zA-Z0-9\-\.]/) { 1184 if ($pattern =~ /[^a-zA-Z0-9\-\.]/) {
1129 warn "$dir/$ext: meta resource '$pattern' contains illegal characters (not alphanumeric nor . nor *)\n"; 1185 warn "$dir/$ext: meta resource '$pattern' contains illegal characters (not alphanumeric nor . nor *)\n";
1130 } else { 1186 } else {
1131 $ext{resource}{$pattern} = [$ext, $type, $desc]; 1187 $ext{resource}{$pattern} = [$ext, $type, $desc];
1132 } 1188 }
1133 } elsif (/^#:META:BINDING:(.*)/) {
1134 my ($keysym, $action) = split /:/, $1;
1135 $ext{binding}{$keysym} = [$ext, $action];
1136 } elsif (/^\s*(?:#|$)/) { 1189 } elsif (/^\s*(?:#|$)/) {
1137 # skip other comments and empty lines 1190 # skip other comments and empty lines
1138 } else { 1191 } else {
1139 last; # stop parsing on first non-empty non-comment line 1192 last; # stop parsing on first non-empty non-comment line
1140 } 1193 }
1141 } 1194 }
1142 1195
1143 $meta{ext}{$ext} = \%ext; 1196 $meta{ext}{$ext} = \%ext;
1144 } 1197 }
1145 } 1198 };
1146 1199
1200# $gather->($_, 0) for @cpandirs;
1201 $gather->($_, 1) for @urxvtdirs;
1202
1147 # and now merge resources and bindings 1203 # and now merge resources
1204
1205 $meta{resource} = \my %resource;
1206
1148 while (my ($k, $v) = each %{ $meta{ext} }) { 1207 while (my ($k, $v) = each %{ $meta{ext} }) {
1149 #TODO: should check for extensions overriding each other 1208 #TODO: should check for extensions overriding each other
1150 %{ $meta{resource} } = (%{ $meta{resource} }, %{ $v->{resource} }); 1209 %resource = (%resource, %{ $v->{resource} });
1151 %{ $meta{binding} } = (%{ $meta{binding} }, %{ $v->{binding} });
1152 } 1210 }
1153} 1211}
1154 1212
1155=item $term = new urxvt::term $envhashref, $rxvtname, [arg...] 1213=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
1156 1214
1272Returns the X-Resource for the given pattern, excluding the program or 1330Returns the X-Resource for the given pattern, excluding the program or
1273class name, i.e. C<< $term->x_resource ("boldFont") >> should return the 1331class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
1274same value as used by this instance of rxvt-unicode. Returns C<undef> if no 1332same value as used by this instance of rxvt-unicode. Returns C<undef> if no
1275resource with that pattern exists. 1333resource with that pattern exists.
1276 1334
1277Extensions that define extra resource or command line arguments also need 1335Extensions that define extra resources also need to call this method
1278to call this method to access their values. 1336to access their values.
1279 1337
1280If the method is called on an extension object (basically, from an 1338If the method is called on an extension object (basically, from an
1281extension), then the special prefix C<%.> will be replaced by the name of 1339extension), then the special prefix C<%.> will be replaced by the name of
1282the extension and a dot, and the lone string C<%> will be replaced by the 1340the extension and a dot, and the lone string C<%> will be replaced by the
1283extension name itself. This makes it possible to code extensions so you 1341extension name itself. This makes it possible to code extensions so you
1284can rename them and get a new set of commandline switches and resources 1342can rename them and get a new set of resources without having to change
1285without having to change the actual code. 1343the actual code.
1286 1344
1287This method should only be called during the C<on_start> hook, as there is 1345This method should only be called during the C<on_start> hook, as there is
1288only one resource database per display, and later invocations might return 1346only one resource database per display, and later invocations might return
1289the wrong resources. 1347the wrong resources.
1290 1348
1302 my $res = &x_resource; 1360 my $res = &x_resource;
1303 1361
1304 $res =~ /^\s*(?:true|yes|on|1)\s*$/i ? 1 : defined $res && 0 1362 $res =~ /^\s*(?:true|yes|on|1)\s*$/i ? 1 : defined $res && 0
1305} 1363}
1306 1364
1365=item $action = $term->lookup_keysym ($keysym, $state)
1366
1367Returns the action bound to key combination C<($keysym, $state)>,
1368if a binding for it exists, and C<undef> otherwise.
1369
1307=item $success = $term->bind_action ($key, $octets) 1370=item $success = $term->bind_action ($key, $action)
1308 1371
1309Adds a key binding exactly as specified via a C<keysym> resource. See the 1372Adds a key binding exactly as specified via a C<keysym> resource. See the
1310C<keysym> resource in the urxvt(1) manpage. 1373C<keysym> resource in the urxvt(1) manpage.
1374
1375To add default bindings for actions, an extension should call C<<
1376->bind_action >> in its C<init> hook for every such binding. Doing it
1377in the C<init> hook allows users to override or remove the binding
1378again.
1379
1380Example: the C<searchable-scrollback> by default binds itself
1381on C<Meta-s>, using C<< $self->bind_action >>, which calls C<<
1382$term->bind_action >>.
1383
1384 sub init {
1385 my ($self) = @_;
1386
1387 $self->bind_action ("M-s" => "%:start");
1388 }
1311 1389
1312=item $rend = $term->rstyle ([$new_rstyle]) 1390=item $rend = $term->rstyle ([$new_rstyle])
1313 1391
1314Return and optionally change the current rendition. Text that is output by 1392Return and optionally change the current rendition. Text that is output by
1315the terminal application will use this style. 1393the terminal application will use this style.
1473 1551
1474=item $term->scr_add_lines ($string) 1552=item $term->scr_add_lines ($string)
1475 1553
1476Write the given text string to the screen, as if output by the application 1554Write the given text string to the screen, as if output by the application
1477running inside the terminal. It may not contain command sequences (escape 1555running inside the terminal. It may not contain command sequences (escape
1478codes), but is free to use line feeds, carriage returns and tabs. The 1556codes - see C<cmd_parse> for that), but is free to use line feeds,
1479string is a normal text string, not in locale-dependent encoding. 1557carriage returns and tabs. The string is a normal text string, not in
1558locale-dependent encoding.
1480 1559
1481Normally its not a good idea to use this function, as programs might be 1560Normally its not a good idea to use this function, as programs might be
1482confused by changes in cursor position or scrolling. Its useful inside a 1561confused by changes in cursor position or scrolling. Its useful inside a
1483C<on_add_lines> hook, though. 1562C<on_add_lines> hook, though.
1484 1563
1492locale-specific encoding of the terminal and can contain command sequences 1571locale-specific encoding of the terminal and can contain command sequences
1493(escape codes) that will be interpreted. 1572(escape codes) that will be interpreted.
1494 1573
1495=item $term->tt_write ($octets) 1574=item $term->tt_write ($octets)
1496 1575
1497Write the octets given in C<$octets> to the tty (i.e. as program input). To 1576Write the octets given in C<$octets> to the tty (i.e. as user input
1577to the program, see C<cmd_parse> for the opposite direction). To pass
1498pass characters instead of octets, you should convert your strings first 1578characters instead of octets, you should convert your strings first to the
1499to the locale-specific encoding using C<< $term->locale_encode >>. 1579locale-specific encoding using C<< $term->locale_encode >>.
1500 1580
1501=item $term->tt_write_user_input ($octets) 1581=item $term->tt_write_user_input ($octets)
1502 1582
1503Like C<tt_write>, but should be used when writing strings in response to 1583Like C<tt_write>, but should be used when writing strings in response to
1504the user pressing a key, to invoke the additional actions requested by 1584the user pressing a key, to invoke the additional actions requested by
1551 1631
1552=item $term->key_release ($state, $keycode[, $time]) 1632=item $term->key_release ($state, $keycode[, $time])
1553 1633
1554Deliver various fake events to to terminal. 1634Deliver various fake events to to terminal.
1555 1635
1556=item $window_width = $term->width 1636=item $window_width = $term->width ([$new_value])
1557 1637
1558=item $window_height = $term->height 1638=item $window_height = $term->height ([$new_value])
1559 1639
1560=item $font_width = $term->fwidth 1640=item $font_width = $term->fwidth ([$new_value])
1561 1641
1562=item $font_height = $term->fheight 1642=item $font_height = $term->fheight ([$new_value])
1563 1643
1564=item $font_ascent = $term->fbase 1644=item $font_ascent = $term->fbase ([$new_value])
1565 1645
1566=item $terminal_rows = $term->nrow 1646=item $terminal_rows = $term->nrow ([$new_value])
1567 1647
1568=item $terminal_columns = $term->ncol 1648=item $terminal_columns = $term->ncol ([$new_value])
1569 1649
1570=item $has_focus = $term->focus 1650=item $has_focus = $term->focus ([$new_value])
1571 1651
1572=item $is_mapped = $term->mapped 1652=item $is_mapped = $term->mapped ([$new_value])
1573 1653
1574=item $max_scrollback = $term->saveLines 1654=item $max_scrollback = $term->saveLines ([$new_value])
1575 1655
1576=item $nrow_plus_saveLines = $term->total_rows 1656=item $nrow_plus_saveLines = $term->total_rows ([$new_value])
1577 1657
1578=item $topmost_scrollback_row = $term->top_row 1658=item $topmost_scrollback_row = $term->top_row ([$new_value])
1579 1659
1580Return various integers describing terminal characteristics. 1660Return various integers describing terminal characteristics. If an
1661argument is given, changes the value and returns the previous one.
1581 1662
1582=item $x_display = $term->display_id 1663=item $x_display = $term->display_id
1583 1664
1584Return the DISPLAY used by rxvt-unicode. 1665Return the DISPLAY used by rxvt-unicode.
1585 1666
1621Returns the currently displayed screen (0 primary, 1 secondary). 1702Returns the currently displayed screen (0 primary, 1 secondary).
1622 1703
1623=item $cursor_is_hidden = $term->hidden_cursor 1704=item $cursor_is_hidden = $term->hidden_cursor
1624 1705
1625Returns whether the cursor is currently hidden or not. 1706Returns whether the cursor is currently hidden or not.
1707
1708=item $priv_modes = $term->priv_modes
1709
1710Returns a bitset with the state of DEC private modes.
1711
1712Example:
1713
1714 if ($term->priv_modes & urxvt::PrivMode_mouse_report) {
1715 # mouse reporting is turned on
1716 }
1626 1717
1627=item $view_start = $term->view_start ([$newvalue]) 1718=item $view_start = $term->view_start ([$newvalue])
1628 1719
1629Returns the row number of the topmost displayed line. Maximum value is 1720Returns the row number of the topmost displayed line. Maximum value is
1630C<0>, which displays the normal terminal contents. Lower values scroll 1721C<0>, which displays the normal terminal contents. Lower values scroll
1635Requests a screen refresh. At the next opportunity, rxvt-unicode will 1726Requests a screen refresh. At the next opportunity, rxvt-unicode will
1636compare the on-screen display with its stored representation. If they 1727compare the on-screen display with its stored representation. If they
1637differ, it redraws the differences. 1728differ, it redraws the differences.
1638 1729
1639Used after changing terminal contents to display them. 1730Used after changing terminal contents to display them.
1731
1732=item $term->refresh_check
1733
1734Checks if a refresh has been requested and, if so, schedules one.
1640 1735
1641=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]]) 1736=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
1642 1737
1643Returns the text of the entire row with number C<$row_number>. Row C<< $term->top_row >> 1738Returns the text of the entire row with number C<$row_number>. Row C<< $term->top_row >>
1644is the topmost terminal line, row C<< $term->nrow-1 >> is the bottommost 1739is the topmost terminal line, row C<< $term->nrow-1 >> is the bottommost

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