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Revision 1.229 by root, Sat Apr 26 18:53:51 2014 UTC vs.
Revision 1.256 by sf-exg, Thu Jul 14 05:10:06 2016 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
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>.
285 308
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
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>
290resource in the urxvt(1) manpage). 321resource in the urxvt(1) manpage).
291 322
292The event is simply the action string. This interface is going away in 323The event is simply the action string. This interface is going away in
293preference to the C<< ->register_keysym_action >> method. 324preference 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>.
301 325
302=item on_resize_all_windows $term, $new_width, $new_height 326=item on_resize_all_windows $term, $new_width, $new_height
303 327
304Called just after the new window size has been calculated, but before 328Called just after the new window size has been calculated, but before
305windows 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
350manpage), 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
351(real, not screen-based) row and column under the mouse cursor. 375(real, not screen-based) row and column under the mouse cursor.
352 376
353C<on_key_press> additionally receives the string rxvt-unicode would 377C<on_key_press> additionally receives the string rxvt-unicode would
354output, if any, in locale-specific encoding. 378output, if any, in locale-specific encoding.
355
356subwindow.
357 379
358=item on_client_message $term, $event 380=item on_client_message $term, $event
359 381
360=item on_wm_protocols $term, $event 382=item on_wm_protocols $term, $event
361 383
564no warnings 'utf8'; 586no warnings 'utf8';
565 587
566sub parse_resource { 588sub parse_resource {
567 my ($term, $name, $isarg, $longopt, $flag, $value) = @_; 589 my ($term, $name, $isarg, $longopt, $flag, $value) = @_;
568 590
569 $name =~ y/-/./ if $isarg;
570
571 $term->scan_meta; 591 $term->scan_extensions;
572 592
573 my $r = $term->{meta}{resource}; 593 my $r = $term->{meta}{resource};
574 keys %$r; # reset iterator 594 keys %$r; # reset iterator
575 while (my ($pattern, $v) = each %$r) { 595 while (my ($k, $v) = each %$r) {
576 if ( 596 my $pattern = $k;
597 $pattern =~ y/./-/ if $isarg;
598 my $prefix = $name;
599 my $suffix;
577 $pattern =~ /\.$/ 600 if ($pattern =~ /\-$/) {
578 ? $pattern eq substr $name, 0, length $pattern 601 $prefix = substr $name, 0, length $pattern;
579 : $pattern eq $name 602 $suffix = substr $name, length $pattern;
580 ) { 603 }
604 if ($pattern eq $prefix) {
581 $name = "$urxvt::RESCLASS.$name"; 605 $name = "$urxvt::RESCLASS.$k$suffix";
582 606
583 push @{ $term->{perl_ext_3} }, $v->[0]; 607 push @{ $term->{perl_ext_3} }, $v->[0];
608
609 return 1 unless $isarg;
584 610
585 if ($v->[1] eq "boolean") { 611 if ($v->[1] eq "boolean") {
586 $term->put_option_db ($name, $flag ? "true" : "false"); 612 $term->put_option_db ($name, $flag ? "true" : "false");
587 return 1; 613 return 1;
588 } else { 614 } else {
596} 622}
597 623
598sub usage { 624sub usage {
599 my ($term, $usage_type) = @_; 625 my ($term, $usage_type) = @_;
600 626
601 $term->scan_meta; 627 $term->scan_extensions;
602 628
603 my $r = $term->{meta}{resource}; 629 my $r = $term->{meta}{resource};
604 630
605 for my $pattern (sort keys %$r) { 631 for my $pattern (sort keys %$r) {
606 my ($ext, $type, $desc) = @{ $r->{$pattern} }; 632 my ($ext, $type, $desc) = @{ $r->{$pattern} };
667# called by the rxvt core 693# called by the rxvt core
668sub invoke { 694sub invoke {
669 local $TERM = shift; 695 local $TERM = shift;
670 my $htype = shift; 696 my $htype = shift;
671 697
672 if ($htype == 0) { # INIT 698 if ($htype == HOOK_INIT) {
673 my @dirs = $TERM->perl_libdirs; 699 my @dirs = $TERM->perl_libdirs;
700
701 $TERM->scan_extensions;
674 702
675 my %ext_arg; 703 my %ext_arg;
676 704
677 { 705 {
678 my @init = @TERM_INIT; 706 my @init = @TERM_INIT;
682 @TERM_EXT = (); 710 @TERM_EXT = ();
683 $TERM->register_package ($_) for @pkg; 711 $TERM->register_package ($_) for @pkg;
684 } 712 }
685 713
686 for ( 714 for (
715 (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2),
687 @{ delete $TERM->{perl_ext_3} }, 716 @{ delete $TERM->{perl_ext_3} }
688 grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2
689 ) { 717 ) {
690 if ($_ eq "default") { 718 if ($_ eq "default") {
719
720 $ext_arg{$_} = []
691 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline); 721 for qw(selection option-popup selection-popup readline searchable-scrollback);
722
723 for ($TERM->_keysym_resources) {
724 next if /^(?:string|command|builtin|builtin-string|perl)/;
725 next unless /^([A-Za-z0-9_\-]+):/;
726
727 my $ext = $1;
728
729 $ext_arg{$ext} = [];
730 }
731
692 } elsif (/^-(.*)$/) { 732 } elsif (/^-(.*)$/) {
693 delete $ext_arg{$1}; 733 delete $ext_arg{$1};
734
694 } elsif (/^([^<]+)<(.*)>$/) { 735 } elsif (/^([^<]+)<(.*)>$/) {
695 push @{ $ext_arg{$1} }, $2; 736 push @{ $ext_arg{$1} }, $2;
737
696 } else { 738 } else {
697 $ext_arg{$_} ||= []; 739 $ext_arg{$_} ||= [];
698 } 740 }
699 } 741 }
700 742
716 758
717 if (my $cb = $TERM->{_hook}[$htype]) { 759 if (my $cb = $TERM->{_hook}[$htype]) {
718 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")" 760 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
719 if $verbosity >= 10; 761 if $verbosity >= 10;
720 762
763 if ($htype == HOOK_ACTION) {
764 # this hook is only sent to the extension with the name
765 # matching the first arg
766 my $pkg = shift;
767 $pkg =~ y/-/_/;
768 $pkg = "urxvt::ext::$pkg";
769
770 $cb = $cb->{$pkg}
771 or return undef; #TODO: maybe warn user?
772
773 $cb = { $pkg => $cb };
774 }
775
721 for my $pkg (keys %$cb) { 776 for my $pkg (keys %$cb) {
722 my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg} || $TERM, @_) }; 777 my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg} || $TERM, @_) };
723 $retval ||= $retval_; 778 $retval ||= $retval_;
724 779
725 if ($@) { 780 if ($@) {
730 785
731 verbose 11, "$HOOKNAME[$htype] returning <$retval>" 786 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
732 if $verbosity >= 11; 787 if $verbosity >= 11;
733 } 788 }
734 789
735 if ($htype == 1) { # DESTROY 790 if ($htype == HOOK_DESTROY) {
736 # clear package objects 791 # clear package objects
737 %$_ = () for values %{ $TERM->{_pkg} }; 792 %$_ = () for values %{ $TERM->{_pkg} };
738 793
739 # clear package 794 # clear package
740 %$TERM = (); 795 %$TERM = ();
912 } 967 }
913 968
914 bless \%disable, "urxvt::extension::on_disable" 969 bless \%disable, "urxvt::extension::on_disable"
915} 970}
916 971
972=item $self->bind_action ($hotkey, $action)
973
917=item $self->x_resource ($pattern) 974=item $self->x_resource ($pattern)
918 975
919=item $self->x_resource_boolean ($pattern) 976=item $self->x_resource_boolean ($pattern)
920 977
921These methods support an additional C<%> prefix when called on an 978These methods support an additional C<%> prefix for C<$action> or
922extension object - see the description of these methods in the 979C<$pattern> when called on an extension object, compared to the
980C<urxvt::term> methods of the same name - see the description of these
923C<urxvt::term> class for details. 981methods in the C<urxvt::term> class for details.
924 982
925=cut 983=cut
984
985sub bind_action {
986 my ($self, $hotkey, $action) = @_;
987 $action =~ s/^%:/$_[0]{_name}:/;
988 $self->{term}->bind_action ($hotkey, $action)
989}
926 990
927sub x_resource { 991sub x_resource {
928 my ($self, $name) = @_; 992 my ($self, $name) = @_;
929 $name =~ s/^%(\.|$)/$_[0]{_name}$1/; 993 $name =~ s/^%(\.|$)/$_[0]{_name}$1/;
930 $self->{term}->x_resource ($name) 994 $self->{term}->x_resource ($name)
1065 $ENV{URXVT_PERL_LIB}, 1129 $ENV{URXVT_PERL_LIB},
1066 "$ENV{HOME}/.urxvt/ext", 1130 "$ENV{HOME}/.urxvt/ext",
1067 "$LIBDIR/perl" 1131 "$LIBDIR/perl"
1068} 1132}
1069 1133
1070sub scan_meta { 1134# scan for available extensions and collect their metadata
1135sub scan_extensions {
1071 my ($self) = @_; 1136 my ($self) = @_;
1137
1138 return if exists $self->{meta};
1139
1072 my @libdirs = perl_libdirs $self; 1140 my @urxvtdirs = perl_libdirs $self;
1141# my @cpandirs = grep -d, map "$_/URxvt/Ext", @INC;
1073 1142
1074 return if $self->{meta_libdirs} eq join "\x00", @libdirs;
1075
1076 my %meta;
1077
1078 $self->{meta_libdirs} = join "\x00", @libdirs;
1079 $self->{meta} = \%meta; 1143 $self->{meta} = \my %meta;
1080 1144
1081 for my $dir (reverse @libdirs) { 1145 # first gather extensions
1146
1147 my $gather = sub {
1148 my ($dir, $core) = @_;
1149
1082 opendir my $fh, $dir 1150 opendir my $fh, $dir
1083 or next; 1151 or return;
1152
1084 for my $ext (readdir $fh) { 1153 for my $ext (readdir $fh) {
1085 $ext !~ /^\./ 1154 $ext !~ /^\./
1086 and open my $fh, "<", "$dir/$ext"
1087 or next; 1155 or next;
1088 1156
1157 open my $fh, "<", "$dir/$ext"
1158 or next;
1159
1160 -f $fh
1161 or next;
1162
1163 $ext =~ s/\.uext$// or $core
1164 or next;
1165
1166 my %ext = (dir => $dir);
1167
1089 while (<$fh>) { 1168 while (<$fh>) {
1090 if (/^#:META:X_RESOURCE:(.*)/) { 1169 if (/^#:META:(?:X_)?RESOURCE:(.*)/) {
1091 my ($pattern, $type, $desc) = split /:/, $1; 1170 my ($pattern, $type, $desc) = split /:/, $1;
1092 $pattern =~ s/^%(\.|$)/$ext$1/g; # % in pattern == extension name 1171 $pattern =~ s/^%(\.|$)/$ext$1/g; # % in pattern == extension name
1093 if ($pattern =~ /[^a-zA-Z0-9\-\.]/) { 1172 if ($pattern =~ /[^a-zA-Z0-9\-\.]/) {
1094 warn "$dir/$ext: meta resource '$pattern' contains illegal characters (not alphanumeric nor . nor *)\n"; 1173 warn "$dir/$ext: meta resource '$pattern' contains illegal characters (not alphanumeric nor . nor *)\n";
1095 } else { 1174 } else {
1096 $meta{resource}{$pattern} = [$ext, $type, $desc]; 1175 $ext{resource}{$pattern} = [$ext, $type, $desc];
1097 } 1176 }
1098 } elsif (/^\s*(?:#|$)/) { 1177 } elsif (/^\s*(?:#|$)/) {
1099 # skip other comments and empty lines 1178 # skip other comments and empty lines
1100 } else { 1179 } else {
1101 last; # stop parsing on first non-empty non-comment line 1180 last; # stop parsing on first non-empty non-comment line
1102 } 1181 }
1103 } 1182 }
1183
1184 $meta{ext}{$ext} = \%ext;
1104 } 1185 }
1186 };
1187
1188# $gather->($_, 0) for @cpandirs;
1189 $gather->($_, 1) for @urxvtdirs;
1190
1191 # and now merge resources
1192
1193 $meta{resource} = \my %resource;
1194
1195 while (my ($k, $v) = each %{ $meta{ext} }) {
1196 #TODO: should check for extensions overriding each other
1197 %resource = (%resource, %{ $v->{resource} });
1105 } 1198 }
1106} 1199}
1107 1200
1108=item $term = new urxvt::term $envhashref, $rxvtname, [arg...] 1201=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
1109 1202
1225Returns the X-Resource for the given pattern, excluding the program or 1318Returns the X-Resource for the given pattern, excluding the program or
1226class name, i.e. C<< $term->x_resource ("boldFont") >> should return the 1319class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
1227same value as used by this instance of rxvt-unicode. Returns C<undef> if no 1320same value as used by this instance of rxvt-unicode. Returns C<undef> if no
1228resource with that pattern exists. 1321resource with that pattern exists.
1229 1322
1230Extensions that define extra resource or command line arguments also need 1323Extensions that define extra resources also need to call this method
1231to call this method to access their values. 1324to access their values.
1232 1325
1233If the method is called on an extension object (basically, from an 1326If the method is called on an extension object (basically, from an
1234extension), then the special prefix C<%.> will be replaced by the name of 1327extension), then the special prefix C<%.> will be replaced by the name of
1235the extension and a dot, and the lone string C<%> will be replaced by the 1328the extension and a dot, and the lone string C<%> will be replaced by the
1236extension name itself. This makes it possible to code extensions so you 1329extension name itself. This makes it possible to code extensions so you
1237can rename them and get a new set of commandline switches and resources 1330can rename them and get a new set of resources without having to change
1238without having to change the actual code. 1331the actual code.
1239 1332
1240This method should only be called during the C<on_start> hook, as there is 1333This method should only be called during the C<on_start> hook, as there is
1241only one resource database per display, and later invocations might return 1334only one resource database per display, and later invocations might return
1242the wrong resources. 1335the wrong resources.
1243 1336
1255 my $res = &x_resource; 1348 my $res = &x_resource;
1256 1349
1257 $res =~ /^\s*(?:true|yes|on|1)\s*$/i ? 1 : defined $res && 0 1350 $res =~ /^\s*(?:true|yes|on|1)\s*$/i ? 1 : defined $res && 0
1258} 1351}
1259 1352
1260=item $success = $term->parse_keysym ($key, $octets) 1353=item $action = $term->lookup_keysym ($keysym, $state)
1261 1354
1355Returns the action bound to key combination C<($keysym, $state)>,
1356if a binding for it exists, and C<undef> otherwise.
1357
1358=item $success = $term->bind_action ($key, $action)
1359
1262Adds a key binding exactly as specified via a resource. See the 1360Adds a key binding exactly as specified via a C<keysym> resource. See the
1263C<keysym> resource in the urxvt(1) manpage. 1361C<keysym> resource in the urxvt(1) manpage.
1264 1362
1265=item $term->register_command ($keysym, $modifiermask, $string) 1363To add default bindings for actions, an extension should call C<<
1364->bind_action >> in its C<init> hook for every such binding. Doing it
1365in the C<init> hook allows users to override or remove the binding
1366again.
1266 1367
1267Adds a key binding. This is a lower level api compared to 1368Example: the C<searchable-scrollback> by default binds itself
1268C<parse_keysym>, as it expects a parsed key description, and can be 1369on C<Meta-s>, using C<< $self->bind_action >>, which calls C<<
1269used only inside either the C<on_init> hook, to add a binding, or the 1370$term->bind_action >>.
1270C<on_register_command> hook, to modify a parsed binding. 1371
1372 sub init {
1373 my ($self) = @_;
1374
1375 $self->bind_action ("M-s" => "%:start");
1376 }
1271 1377
1272=item $rend = $term->rstyle ([$new_rstyle]) 1378=item $rend = $term->rstyle ([$new_rstyle])
1273 1379
1274Return and optionally change the current rendition. Text that is output by 1380Return and optionally change the current rendition. Text that is output by
1275the terminal application will use this style. 1381the terminal application will use this style.
1433 1539
1434=item $term->scr_add_lines ($string) 1540=item $term->scr_add_lines ($string)
1435 1541
1436Write the given text string to the screen, as if output by the application 1542Write the given text string to the screen, as if output by the application
1437running inside the terminal. It may not contain command sequences (escape 1543running inside the terminal. It may not contain command sequences (escape
1438codes), but is free to use line feeds, carriage returns and tabs. The 1544codes - see C<cmd_parse> for that), but is free to use line feeds,
1439string is a normal text string, not in locale-dependent encoding. 1545carriage returns and tabs. The string is a normal text string, not in
1546locale-dependent encoding.
1440 1547
1441Normally its not a good idea to use this function, as programs might be 1548Normally its not a good idea to use this function, as programs might be
1442confused by changes in cursor position or scrolling. Its useful inside a 1549confused by changes in cursor position or scrolling. Its useful inside a
1443C<on_add_lines> hook, though. 1550C<on_add_lines> hook, though.
1444 1551
1452locale-specific encoding of the terminal and can contain command sequences 1559locale-specific encoding of the terminal and can contain command sequences
1453(escape codes) that will be interpreted. 1560(escape codes) that will be interpreted.
1454 1561
1455=item $term->tt_write ($octets) 1562=item $term->tt_write ($octets)
1456 1563
1457Write the octets given in C<$octets> to the tty (i.e. as program input). To 1564Write the octets given in C<$octets> to the tty (i.e. as user input
1565to the program, see C<cmd_parse> for the opposite direction). To pass
1458pass characters instead of octets, you should convert your strings first 1566characters instead of octets, you should convert your strings first to the
1459to the locale-specific encoding using C<< $term->locale_encode >>. 1567locale-specific encoding using C<< $term->locale_encode >>.
1568
1569=item $term->tt_write_user_input ($octets)
1570
1571Like C<tt_write>, but should be used when writing strings in response to
1572the user pressing a key, to invoke the additional actions requested by
1573the user for that case (C<tt_write> doesn't do that).
1574
1575The typical use case would be inside C<on_action> hooks.
1460 1576
1461=item $term->tt_paste ($octets) 1577=item $term->tt_paste ($octets)
1462 1578
1463Write the octets given in C<$octets> to the tty as a paste, converting NL to 1579Write the octets given in C<$octets> to the tty as a paste, converting NL to
1464CR and bracketing the data with control sequences if bracketed paste mode 1580CR and bracketing the data with control sequences if bracketed paste mode
1503 1619
1504=item $term->key_release ($state, $keycode[, $time]) 1620=item $term->key_release ($state, $keycode[, $time])
1505 1621
1506Deliver various fake events to to terminal. 1622Deliver various fake events to to terminal.
1507 1623
1508=item $window_width = $term->width 1624=item $window_width = $term->width ([$new_value])
1509 1625
1510=item $window_height = $term->height 1626=item $window_height = $term->height ([$new_value])
1511 1627
1512=item $font_width = $term->fwidth 1628=item $font_width = $term->fwidth ([$new_value])
1513 1629
1514=item $font_height = $term->fheight 1630=item $font_height = $term->fheight ([$new_value])
1515 1631
1516=item $font_ascent = $term->fbase 1632=item $font_ascent = $term->fbase ([$new_value])
1517 1633
1518=item $terminal_rows = $term->nrow 1634=item $terminal_rows = $term->nrow ([$new_value])
1519 1635
1520=item $terminal_columns = $term->ncol 1636=item $terminal_columns = $term->ncol ([$new_value])
1521 1637
1522=item $has_focus = $term->focus 1638=item $has_focus = $term->focus ([$new_value])
1523 1639
1524=item $is_mapped = $term->mapped 1640=item $is_mapped = $term->mapped ([$new_value])
1525 1641
1526=item $max_scrollback = $term->saveLines 1642=item $max_scrollback = $term->saveLines ([$new_value])
1527 1643
1528=item $nrow_plus_saveLines = $term->total_rows 1644=item $nrow_plus_saveLines = $term->total_rows ([$new_value])
1529 1645
1530=item $topmost_scrollback_row = $term->top_row 1646=item $topmost_scrollback_row = $term->top_row ([$new_value])
1531 1647
1532Return various integers describing terminal characteristics. 1648Return various integers describing terminal characteristics. If an
1649argument is given, changes the value and returns the previous one.
1533 1650
1534=item $x_display = $term->display_id 1651=item $x_display = $term->display_id
1535 1652
1536Return the DISPLAY used by rxvt-unicode. 1653Return the DISPLAY used by rxvt-unicode.
1537 1654
1587Requests a screen refresh. At the next opportunity, rxvt-unicode will 1704Requests a screen refresh. At the next opportunity, rxvt-unicode will
1588compare the on-screen display with its stored representation. If they 1705compare the on-screen display with its stored representation. If they
1589differ, it redraws the differences. 1706differ, it redraws the differences.
1590 1707
1591Used after changing terminal contents to display them. 1708Used after changing terminal contents to display them.
1709
1710=item $term->refresh_check
1711
1712Checks if a refresh has been requested and, if so, schedules one.
1592 1713
1593=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]]) 1714=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
1594 1715
1595Returns the text of the entire row with number C<$row_number>. Row C<< $term->top_row >> 1716Returns the text of the entire row with number C<$row_number>. Row C<< $term->top_row >>
1596is the topmost terminal line, row C<< $term->nrow-1 >> is the bottommost 1717is the topmost terminal line, row C<< $term->nrow-1 >> is the bottommost

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