X-Git-Url: https://git.ladys.computer/Gitweb/blobdiff_plain/8fb8b3b4b444f368efb7d8ab4fab297372e643dd6f582db0ef8d0a5147fa76e5..7f7b9389478c8990ccd0a52bfe74e5dca2d2137c378c4f27ec43aaed3a06e98a:/gitweb.perl?ds=sidebyside

diff --git a/gitweb.perl b/gitweb.perl
index d82d6fb..16b0248 100755
--- a/gitweb.perl
+++ b/gitweb.perl
@@ -1082,7 +1082,16 @@ sub evaluate_and_validate_params {
 		if (length($searchtext) < 2) {
 			die_error(403, "At least two characters are required for search parameter");
 		}
-		$search_regexp = $search_use_regexp ? $searchtext : quotemeta $searchtext;
+		if ($search_use_regexp) {
+			$search_regexp = $searchtext;
+			if (!eval { qr/$search_regexp/; 1; }) {
+				(my $error = $@) =~ s/ at \S+ line \d+.*\n?//;
+				die_error(400, "Invalid search regexp '$search_regexp'",
+				          esc_html($error));
+			}
+		} else {
+			$search_regexp = quotemeta $searchtext;
+		}
 	}
 }
 
@@ -1743,20 +1752,61 @@ sub esc_html_hl_regions {
 	return $out;
 }
 
-# highlight match (if any), and escape HTML
-sub esc_html_match_hl {
+# return positions of beginning and end of each match
+sub matchpos_list {
 	my ($str, $regexp) = @_;
-	return esc_html($str) unless defined $regexp;
+	return unless (defined $str && defined $regexp);
 
 	my @matches;
 	while ($str =~ /$regexp/g) {
 		push @matches, [$-[0], $+[0]];
 	}
+	return @matches;
+}
+
+# highlight match (if any), and escape HTML
+sub esc_html_match_hl {
+	my ($str, $regexp) = @_;
+	return esc_html($str) unless defined $regexp;
+
+	my @matches = matchpos_list($str, $regexp);
 	return esc_html($str) unless @matches;
 
 	return esc_html_hl_regions($str, 'match', @matches);
 }
 
+
+# highlight match (if any) of shortened string, and escape HTML
+sub esc_html_match_hl_chopped {
+	my ($str, $chopped, $regexp) = @_;
+	return esc_html_match_hl($str, $regexp) unless defined $chopped;
+
+	my @matches = matchpos_list($str, $regexp);
+	return esc_html($chopped) unless @matches;
+
+	# filter matches so that we mark chopped string
+	my $tail = "... "; # see chop_str
+	unless ($chopped =~ s/\Q$tail\E$//) {
+		$tail = '';
+	}
+	my $chop_len = length($chopped);
+	my $tail_len = length($tail);
+	my @filtered;
+
+	for my $m (@matches) {
+		if ($m->[0] > $chop_len) {
+			push @filtered, [ $chop_len, $chop_len + $tail_len ] if ($tail_len > 0);
+			last;
+		} elsif ($m->[1] > $chop_len) {
+			push @filtered, [ $m->[0], $chop_len + $tail_len ];
+			last;
+		}
+		push @filtered, $m;
+	}
+
+	return esc_html_hl_regions($chopped . $tail, 'match', @filtered);
+}
+
 ## ----------------------------------------------------------------------
 ## functions returning short strings
 
@@ -5405,8 +5455,13 @@ sub git_project_list_rows {
 		                       esc_html_match_hl($pr->{'path'}, $search_regexp)) .
 		      "</td>\n" .
 		      "<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
-		                        -class => "list", -title => $pr->{'descr_long'}},
-		                        esc_html($pr->{'descr'})) . "</td>\n" .
+		                        -class => "list",
+		                        -title => $pr->{'descr_long'}},
+		                        $search_regexp
+		                        ? esc_html_match_hl_chopped($pr->{'descr_long'},
+		                                                    $pr->{'descr'}, $search_regexp)
+		                        : esc_html($pr->{'descr'})) .
+		      "</td>\n" .
 		      "<td><i>" . chop_and_escape_str($pr->{'owner'}, 15) . "</i></td>\n";
 		print "<td class=\"". age_class($pr->{'age'}) . "\">" .
 		      (defined $pr->{'age_string'} ? $pr->{'age_string'} : "No commits") . "</td>\n" .