1 files changed, 13 insertions, 1 deletions

diff --git a/Bugzilla/Search/Quicksearch.pm b/Bugzilla/Search/Quicksearch.pm
index 7424f831f..1fca2e322 100644
--- a/Bugzilla/Search/Quicksearch.pm
+++ b/Bugzilla/Search/Quicksearch.pm
@@ -161,6 +161,8 @@ sub quicksearch {
         ThrowUserError('quicksearch_invalid_query')
           if ($words[0] =~ /^(?:AND|OR)$/ || $words[$#words] =~ /^(?:AND|OR|NOT)$/);
 
+        $fulltext = Bugzilla->user->setting('quicksearch_fulltext') eq 'on' ? 1 : 0;
+
         my (@qswords, @or_group);
         while (scalar @words) {
             my $word = shift @words;
@@ -187,6 +189,10 @@ sub quicksearch {
                 }
                 unshift(@words, "-$word");
             }
+            # --comment and ++comment disable or enable fulltext searching
+            elsif ($word =~ /^(--|\+\+)comments?$/i) {
+                $fulltext = $1 eq '--' ? 0 : 1;
+            }
             else {
                 # OR groups words together, as OR has higher precedence than AND.
                 push(@or_group, $word);
@@ -203,7 +209,6 @@ sub quicksearch {
         shift(@qswords) if $bug_status_set;
 
         my (@unknownFields, %ambiguous_fields);
-        $fulltext = Bugzilla->user->setting('quicksearch_fulltext') eq 'on' ? 1 : 0;
 
         # Loop over all main-level QuickSearch words.
         foreach my $qsword (@qswords) {
@@ -477,6 +482,7 @@ sub _translate_field_name {
 
 sub _special_field_syntax {
     my ($word, $negate) = @_;
+    return unless defined($word);
     
     # P1-5 Syntax
     if ($word =~ m/^P(\d+)(?:-(\d+))?$/i) {
@@ -512,6 +518,7 @@ sub _special_field_syntax {
 
 sub _default_quicksearch_word {
     my ($word, $negate) = @_;
+    return unless defined($word);
     
     if (!grep { lc($word) eq $_ } PRODUCT_EXCEPTIONS and length($word) > 2) {
         addChart('product', 'substring', $word, $negate);
@@ -530,10 +537,15 @@ sub _default_quicksearch_word {
     addChart('short_desc', 'substring', $word, $negate);
     addChart('status_whiteboard', 'substring', $word, $negate);
     addChart('content', 'matches', _matches_phrase($word), $negate) if $fulltext;
+
+    # BMO Bug 664124 - Include the crash signature (sig:) field in default quicksearches
+    addChart('cf_crash_signature',  'substring',  $word,  $negate);
 }
 
 sub _handle_urls {
     my ($word, $negate) = @_;
+    return unless defined($word);
+
     # URL field (for IP addrs, host.names,
     # scheme://urls)
     if ($word =~ m/[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+/