gitweb: Highlight matched part of shortened project description
Previous commit make gitweb use esc_html_match_hl() to mark match in
the _whole_ description of a project when searching projects.
This commit makes gitweb highlight match in _shortened_ description,
based on match in whole description, using esc_html_match_hl_chopped()
subroutine.
If match is in removed (chopped) part, even partially, then trailing
"... " is highlighted.
Signed-off-by: Jakub Narebski <jnareb@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/gitweb/gitweb.perl b/gitweb/gitweb.perl
index 724f06f..01c1318 100755
--- a/gitweb/gitweb.perl
+++ b/gitweb/gitweb.perl
@@ -1742,20 +1742,61 @@
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
@@ -5405,9 +5446,10 @@
"</td>\n" .
"<td>" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary"),
-class => "list",
- $search_regexp ? () : -title => $pr->{'descr_long'}},
+ -title => $pr->{'descr_long'}},
$search_regexp
- ? esc_html_match_hl($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";
