+ my $line = $input->{lines}[$match->{y}];
+
+ while (1) {
+ my $match_old = \%{$match};
+
+ my $char = $screen->getch;
+ if ($char eq "\n"
+ or $char eq $config->{setting}{alternative_return}) {
+ last; # accept match
+
+ } elsif ($char eq 'w') { # select current word (both directions)
+ extend_match_regex_left($line, $match, qr/\w+/);
+ extend_match_regex_right($line, $match, qr/\w+/);
+ } elsif ($char eq 'b') { # select current word (only left)
+ extend_match_regex_left($line, $match, qr/\w+/);
+ } elsif ($char eq 'e') { # select current word (only right)
+ extend_match_regex_right($line, $match, qr/\w+/);
+
+ } elsif ($char eq 'W') { # select current WORD (both directions)
+ extend_match_regex_left($line, $match, qr/\S+/);
+ extend_match_regex_right($line, $match, qr/\S+/);
+ } elsif ($char eq 'B') { # select current WORD (only left)
+ extend_match_regex_left($line, $match, qr/\S+/);
+ } elsif ($char eq 'E') { # select current WORD (only right)
+ extend_match_regex_right($line, $match, qr/\S+/);
+
+ } elsif ($char eq '0') { # select to beginning of line
+ extend_match_regex_left($line, $match, qr/.+/);
+ } elsif ($char eq '$') { # select to end of line
+ extend_match_regex_right($line, $match, qr/.+/);
+
+ # Allow mode changes if not overwritten by local mappings.
+ } elsif (defined $config->{mapping}{mode}{$char}) {
+ $screen->draw_matches($config, [$match_old], []); # clear match
+ return { key => $char };
+
+ } else {
+ next; # ignore unknown mappings
+ }
+
+ $screen->draw_matches($config, [$match_old], [$match]);
+ $screen->refresh;
+ }
+
+ $screen->debug('extend_match', 'done');
+
+ return { match => $match };