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Revision 1.231 by root, Sun Apr 27 20:26:28 2014 UTC vs.
Revision 1.260 by root, Mon May 24 20:21:51 2021 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. These comments are scanned whenever a
121terminal is created and are typically used to autoload extensions when
122their resources or command line parameters are used.
123
124Currently, it recognises only one such comment:
125
126=over 4
127
128=item #:META:RESOURCE:name:type:desc
129
130The RESOURCE comment defines a resource used by the extension, where
131C<name> is the resource name, C<type> is the resource type, C<boolean>
132or C<string>, and C<desc> is the resource description.
133
134The extension will be autoloaded when this resource is specified or used
135as a command line parameter.
136
137=back
138
111=head2 Hooks 139=head2 Hooks
112 140
113The following subroutines can be declared in extension files, and will be 141The following subroutines can be declared in extension files, and will be
114called whenever the relevant event happens. 142called whenever the relevant event happens.
115 143
281 309
282=item on_refresh_end $term 310=item on_refresh_end $term
283 311
284Called just after the screen gets redrawn. See C<on_refresh_begin>. 312Called just after the screen gets redrawn. See C<on_refresh_begin>.
285 313
314=item on_action $term, $string
315
316Called whenever an action is invoked for the corresponding extension
317(e.g. via a C<extension:string> builtin action bound to a key, see
318description of the B<keysym> resource in the urxvt(1) manpage). The
319event is simply the action string. Note that an action event is always
320associated to a single extension.
321
286=item on_user_command $term, $string *DEPRECATED* 322=item on_user_command $term, $string *DEPRECATED*
287 323
288Called whenever a user-configured event is being activated (e.g. via 324Called 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> 325a C<perl:string> action bound to a key, see description of the B<keysym>
290resource in the urxvt(1) manpage). 326resource in the urxvt(1) manpage).
291 327
292The event is simply the action string. This interface is going away in 328The event is simply the action string. This interface is going away in
293preference to the C<< ->register_keysym_action >> method. 329preference to the C<on_action> hook.
294
295=item on_register_command $term, $keysym, $modifiermask, $string
296
297Called after parsing a keysym resource but before registering the
298associated binding. If this hook returns a true value the binding
299is not registered. It can be used to modify a binding by calling
300C<register_command>.
301 330
302=item on_resize_all_windows $term, $new_width, $new_height 331=item on_resize_all_windows $term, $new_width, $new_height
303 332
304Called just after the new window size has been calculated, but before 333Called just after the new window size has been calculated, but before
305windows are actually being resized or hints are being set. If this hook 334windows are actually being resized or hints are being set. If this hook
487ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify, 516ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
488CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest, 517CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
489SelectionNotify, ColormapNotify, ClientMessage, MappingNotify 518SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
490 519
491Various constants for use in X calls and event processing. 520Various constants for use in X calls and event processing.
521
522=item urxvt::PrivMode_132, PrivMode_132OK, PrivMode_rVideo, PrivMode_relOrigin,
523PrivMode_Screen, PrivMode_Autowrap, PrivMode_aplCUR, PrivMode_aplKP,
524PrivMode_HaveBackSpace, PrivMode_BackSpace, PrivMode_ShiftKeys,
525PrivMode_VisibleCursor, PrivMode_MouseX10, PrivMode_MouseX11,
526PrivMode_scrollBar, PrivMode_TtyOutputInh, PrivMode_Keypress,
527PrivMode_smoothScroll, PrivMode_vt52, PrivMode_LFNL, PrivMode_MouseBtnEvent,
528PrivMode_MouseAnyEvent, PrivMode_BracketPaste, PrivMode_ExtMouseUTF8,
529PrivMode_ExtMouseUrxvt, PrivMode_BlinkingCursor, PrivMode_mouse_report,
530PrivMode_Default
531
532Constants for checking DEC private modes.
492 533
493=back 534=back
494 535
495=head2 RENDITION 536=head2 RENDITION
496 537
562no warnings 'utf8'; 603no warnings 'utf8';
563 604
564sub parse_resource { 605sub parse_resource {
565 my ($term, $name, $isarg, $longopt, $flag, $value) = @_; 606 my ($term, $name, $isarg, $longopt, $flag, $value) = @_;
566 607
567 $name =~ y/-/./ if $isarg;
568
569 $term->scan_meta; 608 $term->scan_extensions;
570 609
610 # iterating over all resources has quadratic time overhead
611 # overall, maybe this could be optimised?
571 my $r = $term->{meta}{resource}; 612 my $r = $term->{meta}{resource};
572 keys %$r; # reset iterator 613 keys %$r; # reset iterator
573 while (my ($pattern, $v) = each %$r) { 614 while (my ($k, $v) = each %$r) {
574 if ( 615 my $pattern = $k;
616 $pattern =~ y/./-/ if $isarg;
617 my $prefix = $name;
618 my $suffix;
575 $pattern =~ /\.$/ 619 if ($pattern =~ /\-$/) {
576 ? $pattern eq substr $name, 0, length $pattern 620 $prefix = substr $name, 0, length $pattern;
577 : $pattern eq $name 621 $suffix = substr $name, length $pattern;
578 ) { 622 }
623 if ($pattern eq $prefix) {
579 $name = "$urxvt::RESCLASS.$name"; 624 $name = "$urxvt::RESCLASS.$k$suffix";
580 625
581 push @{ $term->{perl_ext_3} }, $v->[0]; 626 push @{ $term->{perl_ext_3} }, $v->[0];
627
628 return 1 unless $isarg;
582 629
583 if ($v->[1] eq "boolean") { 630 if ($v->[1] eq "boolean") {
584 $term->put_option_db ($name, $flag ? "true" : "false"); 631 $term->put_option_db ($name, $flag ? "true" : "false");
585 return 1; 632 return 1;
586 } else { 633 } else {
594} 641}
595 642
596sub usage { 643sub usage {
597 my ($term, $usage_type) = @_; 644 my ($term, $usage_type) = @_;
598 645
599 $term->scan_meta; 646 $term->scan_extensions;
600 647
601 my $r = $term->{meta}{resource}; 648 my $r = $term->{meta}{resource};
602 649
603 for my $pattern (sort keys %$r) { 650 for my $pattern (sort keys %$r) {
604 my ($ext, $type, $desc) = @{ $r->{$pattern} }; 651 my ($ext, $type, $desc) = @{ $r->{$pattern} };
668 my $htype = shift; 715 my $htype = shift;
669 716
670 if ($htype == HOOK_INIT) { 717 if ($htype == HOOK_INIT) {
671 my @dirs = $TERM->perl_libdirs; 718 my @dirs = $TERM->perl_libdirs;
672 719
720 $TERM->scan_extensions;
721
673 my %ext_arg; 722 my %ext_arg;
674 723
675 { 724 {
676 my @init = @TERM_INIT; 725 my @init = @TERM_INIT;
677 @TERM_INIT = (); 726 @TERM_INIT = ();
681 $TERM->register_package ($_) for @pkg; 730 $TERM->register_package ($_) for @pkg;
682 } 731 }
683 732
684 for ( 733 for (
685 @{ delete $TERM->{perl_ext_3} }, 734 @{ delete $TERM->{perl_ext_3} },
686 grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2 735 (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2),
687 ) { 736 ) {
688 if ($_ eq "default") { 737 if ($_ eq "default") {
738
739 $ext_arg{$_} = []
689 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline); 740 for qw(selection option-popup selection-popup readline searchable-scrollback);
741
742 for ($TERM->_keysym_resources) {
743 next if /^(?:string|command|builtin|builtin-string|perl)/;
744 next unless /^([A-Za-z0-9_\-]+):/;
745
746 my $ext = $1;
747
748 $ext_arg{$ext} = [];
749 }
750
690 } elsif (/^-(.*)$/) { 751 } elsif (/^-(.*)$/) {
691 delete $ext_arg{$1}; 752 delete $ext_arg{$1};
753
692 } elsif (/^([^<]+)<(.*)>$/) { 754 } elsif (/^([^<]+)<(.*)>$/) {
693 push @{ $ext_arg{$1} }, $2; 755 push @{ $ext_arg{$1} }, $2;
756
694 } else { 757 } else {
695 $ext_arg{$_} ||= []; 758 $ext_arg{$_} ||= [];
696 } 759 }
697 } 760 }
698 761
714 777
715 if (my $cb = $TERM->{_hook}[$htype]) { 778 if (my $cb = $TERM->{_hook}[$htype]) {
716 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")" 779 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
717 if $verbosity >= 10; 780 if $verbosity >= 10;
718 781
719 for my $pkg ( 782 if ($htype == HOOK_ACTION) {
720 # this hook is only sent to the extension with the name 783 # this hook is only sent to the extension with the name
721 # matching the first arg 784 # matching the first arg
722 $htype == HOOK_KEYBOARD_DISPATCH 785 my $pkg = shift;
723 ? exists $cb->{"urxvt::ext::$_[0]"} ? "urxvt::ext::" . shift : return undef 786 $pkg =~ y/-/_/;
724 : keys %$cb 787 $pkg = "urxvt::ext::$pkg";
788
789 $cb = $cb->{$pkg}
790 or return undef; #TODO: maybe warn user?
791
792 $cb = { $pkg => $cb };
725 ) { 793 }
794
795 for my $pkg (keys %$cb) {
726 my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg} || $TERM, @_) }; 796 my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg} || $TERM, @_) };
727 $retval ||= $retval_; 797 $retval ||= $retval_;
728 798
729 if ($@) { 799 if ($@) {
730 $TERM->ungrab; # better to lose the grab than the session 800 $TERM->ungrab; # better to lose the grab than the session
916 } 986 }
917 987
918 bless \%disable, "urxvt::extension::on_disable" 988 bless \%disable, "urxvt::extension::on_disable"
919} 989}
920 990
991=item $self->bind_action ($hotkey, $action)
992
921=item $self->x_resource ($pattern) 993=item $self->x_resource ($pattern)
922 994
923=item $self->x_resource_boolean ($pattern) 995=item $self->x_resource_boolean ($pattern)
924 996
925These methods support an additional C<%> prefix when called on an 997These methods support an additional C<%> prefix for C<$action> or
926extension object - see the description of these methods in the 998C<$pattern> when called on an extension object, compared to the
999C<urxvt::term> methods of the same name - see the description of these
927C<urxvt::term> class for details. 1000methods in the C<urxvt::term> class for details.
928 1001
929=cut 1002=cut
1003
1004sub bind_action {
1005 my ($self, $hotkey, $action) = @_;
1006 $action =~ s/^%:/$_[0]{_name}:/;
1007 $self->{term}->bind_action ($hotkey, $action)
1008}
930 1009
931sub x_resource { 1010sub x_resource {
932 my ($self, $name) = @_; 1011 my ($self, $name) = @_;
933 $name =~ s/^%(\.|$)/$_[0]{_name}$1/; 1012 $name =~ s/^%(\.|$)/$_[0]{_name}$1/;
934 $self->{term}->x_resource ($name) 1013 $self->{term}->x_resource ($name)
1069 $ENV{URXVT_PERL_LIB}, 1148 $ENV{URXVT_PERL_LIB},
1070 "$ENV{HOME}/.urxvt/ext", 1149 "$ENV{HOME}/.urxvt/ext",
1071 "$LIBDIR/perl" 1150 "$LIBDIR/perl"
1072} 1151}
1073 1152
1074sub scan_meta { 1153# scan for available extensions and collect their metadata
1154sub scan_extensions {
1075 my ($self) = @_; 1155 my ($self) = @_;
1156
1157 return if exists $self->{meta};
1158
1076 my @libdirs = perl_libdirs $self; 1159 my @urxvtdirs = perl_libdirs $self;
1160# my @cpandirs = grep -d, map "$_/URxvt/Ext", @INC;
1077 1161
1078 return if $self->{meta_libdirs} eq join "\x00", @libdirs;
1079
1080 my %meta;
1081
1082 $self->{meta_libdirs} = join "\x00", @libdirs;
1083 $self->{meta} = \%meta; 1162 $self->{meta} = \my %meta;
1084 1163
1085 for my $dir (reverse @libdirs) { 1164 # first gather extensions
1165
1166 my $gather = sub {
1167 my ($dir, $core) = @_;
1168
1086 opendir my $fh, $dir 1169 opendir my $fh, $dir
1087 or next; 1170 or return;
1171
1088 for my $ext (readdir $fh) { 1172 for my $ext (readdir $fh) {
1089 $ext !~ /^\./ 1173 $ext !~ /^\./
1090 and open my $fh, "<", "$dir/$ext"
1091 or next; 1174 or next;
1092 1175
1176 open my $fh, "<", "$dir/$ext"
1177 or next;
1178
1179 -f $fh
1180 or next;
1181
1182 $ext =~ s/\.uext$// or $core
1183 or next;
1184
1185 my %ext = (dir => $dir);
1186
1093 while (<$fh>) { 1187 while (<$fh>) {
1094 if (/^#:META:X_RESOURCE:(.*)/) { 1188 if (/^#:META:(?:X_)?RESOURCE:(.*)/) {
1095 my ($pattern, $type, $desc) = split /:/, $1; 1189 my ($pattern, $type, $desc) = split /:/, $1;
1096 $pattern =~ s/^%(\.|$)/$ext$1/g; # % in pattern == extension name 1190 $pattern =~ s/^%(\.|$)/$ext$1/g; # % in pattern == extension name
1097 if ($pattern =~ /[^a-zA-Z0-9\-\.]/) { 1191 if ($pattern =~ /[^a-zA-Z0-9\-\.]/) {
1098 warn "$dir/$ext: meta resource '$pattern' contains illegal characters (not alphanumeric nor . nor *)\n"; 1192 warn "$dir/$ext: meta resource '$pattern' contains illegal characters (not alphanumeric nor . nor *)\n";
1099 } else { 1193 } else {
1100 $meta{resource}{$pattern} = [$ext, $type, $desc]; 1194 $ext{resource}{$pattern} = [$ext, $type, $desc];
1101 } 1195 }
1102 } elsif (/^\s*(?:#|$)/) { 1196 } elsif (/^\s*(?:#|$)/) {
1103 # skip other comments and empty lines 1197 # skip other comments and empty lines
1104 } else { 1198 } else {
1105 last; # stop parsing on first non-empty non-comment line 1199 last; # stop parsing on first non-empty non-comment line
1106 } 1200 }
1107 } 1201 }
1202
1203 $meta{ext}{$ext} = \%ext;
1108 } 1204 }
1205 };
1206
1207# $gather->($_, 0) for @cpandirs;
1208 $gather->($_, 1) for @urxvtdirs;
1209
1210 # and now merge resources
1211
1212 $meta{resource} = \my %resource;
1213
1214 while (my ($k, $v) = each %{ $meta{ext} }) {
1215 #TODO: should check for extensions overriding each other
1216 %resource = (%resource, %{ $v->{resource} });
1109 } 1217 }
1110} 1218}
1111 1219
1112=item $term = new urxvt::term $envhashref, $rxvtname, [arg...] 1220=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
1113 1221
1229Returns the X-Resource for the given pattern, excluding the program or 1337Returns the X-Resource for the given pattern, excluding the program or
1230class name, i.e. C<< $term->x_resource ("boldFont") >> should return the 1338class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
1231same value as used by this instance of rxvt-unicode. Returns C<undef> if no 1339same value as used by this instance of rxvt-unicode. Returns C<undef> if no
1232resource with that pattern exists. 1340resource with that pattern exists.
1233 1341
1234Extensions that define extra resource or command line arguments also need 1342Extensions that define extra resources also need to call this method
1235to call this method to access their values. 1343to access their values.
1236 1344
1237If the method is called on an extension object (basically, from an 1345If the method is called on an extension object (basically, from an
1238extension), then the special prefix C<%.> will be replaced by the name of 1346extension), then the special prefix C<%.> will be replaced by the name of
1239the extension and a dot, and the lone string C<%> will be replaced by the 1347the extension and a dot, and the lone string C<%> will be replaced by the
1240extension name itself. This makes it possible to code extensions so you 1348extension name itself. This makes it possible to code extensions so you
1241can rename them and get a new set of commandline switches and resources 1349can rename them and get a new set of resources without having to change
1242without having to change the actual code. 1350the actual code.
1243 1351
1244This method should only be called during the C<on_start> hook, as there is 1352This method should only be called during the C<on_start> hook, as there is
1245only one resource database per display, and later invocations might return 1353only one resource database per display, and later invocations might return
1246the wrong resources. 1354the wrong resources.
1247 1355
1259 my $res = &x_resource; 1367 my $res = &x_resource;
1260 1368
1261 $res =~ /^\s*(?:true|yes|on|1)\s*$/i ? 1 : defined $res && 0 1369 $res =~ /^\s*(?:true|yes|on|1)\s*$/i ? 1 : defined $res && 0
1262} 1370}
1263 1371
1264=item $success = $term->parse_keysym ($key, $octets) 1372=item $action = $term->lookup_keysym ($keysym, $state)
1265 1373
1374Returns the action bound to key combination C<($keysym, $state)>,
1375if a binding for it exists, and C<undef> otherwise.
1376
1377=item $success = $term->bind_action ($key, $action)
1378
1266Adds a key binding exactly as specified via a resource. See the 1379Adds a key binding exactly as specified via a C<keysym> resource. See the
1267C<keysym> resource in the urxvt(1) manpage. 1380C<keysym> resource in the urxvt(1) manpage.
1268 1381
1269=item $term->register_command ($keysym, $modifiermask, $string) 1382To add default bindings for actions, an extension should call C<<
1383->bind_action >> in its C<init> hook for every such binding. Doing it
1384in the C<init> hook allows users to override or remove the binding
1385again.
1270 1386
1271Adds a key binding. This is a lower level api compared to 1387Example: the C<searchable-scrollback> by default binds itself
1272C<parse_keysym>, as it expects a parsed key description, and can be 1388on C<Meta-s>, using C<< $self->bind_action >>, which calls C<<
1273used only inside either the C<on_init> hook, to add a binding, or the 1389$term->bind_action >>.
1274C<on_register_command> hook, to modify a parsed binding. 1390
1391 sub init {
1392 my ($self) = @_;
1393
1394 $self->bind_action ("M-s" => "%:start");
1395 }
1275 1396
1276=item $rend = $term->rstyle ([$new_rstyle]) 1397=item $rend = $term->rstyle ([$new_rstyle])
1277 1398
1278Return and optionally change the current rendition. Text that is output by 1399Return and optionally change the current rendition. Text that is output by
1279the terminal application will use this style. 1400the terminal application will use this style.
1437 1558
1438=item $term->scr_add_lines ($string) 1559=item $term->scr_add_lines ($string)
1439 1560
1440Write the given text string to the screen, as if output by the application 1561Write the given text string to the screen, as if output by the application
1441running inside the terminal. It may not contain command sequences (escape 1562running inside the terminal. It may not contain command sequences (escape
1442codes), but is free to use line feeds, carriage returns and tabs. The 1563codes - see C<cmd_parse> for that), but is free to use line feeds,
1443string is a normal text string, not in locale-dependent encoding. 1564carriage returns and tabs. The string is a normal text string, not in
1565locale-dependent encoding.
1444 1566
1445Normally its not a good idea to use this function, as programs might be 1567Normally its not a good idea to use this function, as programs might be
1446confused by changes in cursor position or scrolling. Its useful inside a 1568confused by changes in cursor position or scrolling. Its useful inside a
1447C<on_add_lines> hook, though. 1569C<on_add_lines> hook, though.
1448 1570
1456locale-specific encoding of the terminal and can contain command sequences 1578locale-specific encoding of the terminal and can contain command sequences
1457(escape codes) that will be interpreted. 1579(escape codes) that will be interpreted.
1458 1580
1459=item $term->tt_write ($octets) 1581=item $term->tt_write ($octets)
1460 1582
1461Write the octets given in C<$octets> to the tty (i.e. as program input). To 1583Write the octets given in C<$octets> to the tty (i.e. as user input
1584to the program, see C<cmd_parse> for the opposite direction). To pass
1462pass characters instead of octets, you should convert your strings first 1585characters instead of octets, you should convert your strings first to the
1463to the locale-specific encoding using C<< $term->locale_encode >>. 1586locale-specific encoding using C<< $term->locale_encode >>.
1587
1588=item $term->tt_write_user_input ($octets)
1589
1590Like C<tt_write>, but should be used when writing strings in response to
1591the user pressing a key, to invoke the additional actions requested by
1592the user for that case (C<tt_write> doesn't do that).
1593
1594The typical use case would be inside C<on_action> hooks.
1464 1595
1465=item $term->tt_paste ($octets) 1596=item $term->tt_paste ($octets)
1466 1597
1467Write the octets given in C<$octets> to the tty as a paste, converting NL to 1598Write the octets given in C<$octets> to the tty as a paste, converting NL to
1468CR and bracketing the data with control sequences if bracketed paste mode 1599CR and bracketing the data with control sequences if bracketed paste mode
1507 1638
1508=item $term->key_release ($state, $keycode[, $time]) 1639=item $term->key_release ($state, $keycode[, $time])
1509 1640
1510Deliver various fake events to to terminal. 1641Deliver various fake events to to terminal.
1511 1642
1512=item $window_width = $term->width 1643=item $window_width = $term->width ([$new_value])
1513 1644
1514=item $window_height = $term->height 1645=item $window_height = $term->height ([$new_value])
1515 1646
1516=item $font_width = $term->fwidth 1647=item $font_width = $term->fwidth ([$new_value])
1517 1648
1518=item $font_height = $term->fheight 1649=item $font_height = $term->fheight ([$new_value])
1519 1650
1520=item $font_ascent = $term->fbase 1651=item $font_ascent = $term->fbase ([$new_value])
1521 1652
1522=item $terminal_rows = $term->nrow 1653=item $terminal_rows = $term->nrow ([$new_value])
1523 1654
1524=item $terminal_columns = $term->ncol 1655=item $terminal_columns = $term->ncol ([$new_value])
1525 1656
1526=item $has_focus = $term->focus 1657=item $has_focus = $term->focus ([$new_value])
1527 1658
1528=item $is_mapped = $term->mapped 1659=item $is_mapped = $term->mapped ([$new_value])
1529 1660
1530=item $max_scrollback = $term->saveLines 1661=item $max_scrollback = $term->saveLines ([$new_value])
1531 1662
1532=item $nrow_plus_saveLines = $term->total_rows 1663=item $nrow_plus_saveLines = $term->total_rows ([$new_value])
1533 1664
1534=item $topmost_scrollback_row = $term->top_row 1665=item $topmost_scrollback_row = $term->top_row ([$new_value])
1535 1666
1536Return various integers describing terminal characteristics. 1667Return various integers describing terminal characteristics. If an
1668argument is given, changes the value and returns the previous one.
1537 1669
1538=item $x_display = $term->display_id 1670=item $x_display = $term->display_id
1539 1671
1540Return the DISPLAY used by rxvt-unicode. 1672Return the DISPLAY used by rxvt-unicode.
1541 1673
1577Returns the currently displayed screen (0 primary, 1 secondary). 1709Returns the currently displayed screen (0 primary, 1 secondary).
1578 1710
1579=item $cursor_is_hidden = $term->hidden_cursor 1711=item $cursor_is_hidden = $term->hidden_cursor
1580 1712
1581Returns whether the cursor is currently hidden or not. 1713Returns whether the cursor is currently hidden or not.
1714
1715=item $priv_modes = $term->priv_modes
1716
1717Returns a bitset with the state of DEC private modes.
1718
1719Example:
1720
1721 if ($term->priv_modes & urxvt::PrivMode_mouse_report) {
1722 # mouse reporting is turned on
1723 }
1582 1724
1583=item $view_start = $term->view_start ([$newvalue]) 1725=item $view_start = $term->view_start ([$newvalue])
1584 1726
1585Returns the row number of the topmost displayed line. Maximum value is 1727Returns the row number of the topmost displayed line. Maximum value is
1586C<0>, which displays the normal terminal contents. Lower values scroll 1728C<0>, which displays the normal terminal contents. Lower values scroll
1591Requests a screen refresh. At the next opportunity, rxvt-unicode will 1733Requests a screen refresh. At the next opportunity, rxvt-unicode will
1592compare the on-screen display with its stored representation. If they 1734compare the on-screen display with its stored representation. If they
1593differ, it redraws the differences. 1735differ, it redraws the differences.
1594 1736
1595Used after changing terminal contents to display them. 1737Used after changing terminal contents to display them.
1738
1739=item $term->refresh_check
1740
1741Checks if a refresh has been requested and, if so, schedules one.
1596 1742
1597=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]]) 1743=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
1598 1744
1599Returns the text of the entire row with number C<$row_number>. Row C<< $term->top_row >> 1745Returns the text of the entire row with number C<$row_number>. Row C<< $term->top_row >>
1600is the topmost terminal line, row C<< $term->nrow-1 >> is the bottommost 1746is the topmost terminal line, row C<< $term->nrow-1 >> is the bottommost

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