Bug 105865: Bugzilla should pay attention to linebreaks when linkifying bug IDs in comments

Bugzilla/Template.pm

@@ -160,6 +160,10 @@ sub quoteUrls {
     my $chr1 = chr(1);
     $text =~ s/\0/$chr1\0/g;
 
+    # If the comment is already wrapped, we should ignore newlines when
+    # looking for matching regexps. Else we should take them into account.
+    my $s = ($comment && $comment->already_wrapped) ? qr/\s/ : qr/\h/;
+
     # However, note that adding the title (for buglinks) can affect things
     # In particular, attachment matches go before bug titles, so that titles
     # with 'attachment 1' don't double match.
@@ -226,7 +230,7 @@ sub quoteUrls {
               ~<a href=\"mailto:$2\">$1$2</a>~igx;
 
     # attachment links
-    $text =~ s~\b(attachment\s*\#?\s*(\d+)(?:\s+\[details\])?)
+    $text =~ s~\b(attachment$s*\#?$s*(\d+)(?:$s+\[details\])?)
               ~($things[$count++] = get_attachment_link($2, $1, $user)) &&
                ("\0\0" . ($count-1) . "\0\0")
               ~egmxi;
@@ -239,43 +243,43 @@ sub quoteUrls {
     # Also, we can't use $bug_re?$comment_re? because that will match the
     # empty string
     my $bug_word = template_var('terms')->{bug};
-    my $bug_re = qr/\Q$bug_word\E\s*\#?\s*(\d+)/i;
+    my $bug_re = qr/\Q$bug_word\E$s*\#?$s*(\d+)/i;
     my $comment_word = template_var('terms')->{comment};
-    my $comment_re = qr/(?:\Q$comment_word\E|comment)\s*\#?\s*(\d+)/i;
-    $text =~ s~\b($bug_re(?:\s*,?\s*$comment_re)?|$comment_re)
+    my $comment_re = qr/(?:\Q$comment_word\E|comment)$s*\#?$s*(\d+)/i;
+    $text =~ s~\b($bug_re(?:$s*,?$s*$comment_re)?|$comment_re)
               ~ # We have several choices. $1 here is the link, and $2-4 are set
                 # depending on which part matched
                (defined($2) ? get_bug_link($2, $1, { comment_num => $3, user => $user }) :
                               "<a href=\"$current_bugurl#c$4\">$1</a>")
-              ~egox;
+              ~egx;
 
     # Handle a list of bug ids: bugs 1, #2, 3, 4
     # Currently, the only delimiter supported is comma.
     # Concluding "and" and "or" are not supported.
     my $bugs_word = template_var('terms')->{bugs};
 
-    my $bugs_re = qr/\Q$bugs_word\E\s*\#?\s*
-                     \d+(?:\s*,\s*\#?\s*\d+)+/ix;
-    while ($text =~ m/($bugs_re)/go) {
+    my $bugs_re = qr/\Q$bugs_word\E$s*\#?$s*
+                     \d+(?:$s*,$s*\#?$s*\d+)+/ix;
+    while ($text =~ m/($bugs_re)/g) {
         my $offset = $-[0];
         my $length = $+[0] - $-[0];
         my $match  = $1;
 
-        $match =~ s/((?:#\s*)?(\d+))/get_bug_link($2, $1);/eg;
+        $match =~ s/((?:#$s*)?(\d+))/get_bug_link($2, $1);/eg;
         # Replace the old string with the linkified one.
         substr($text, $offset, $length) = $match;
     }
 
     my $comments_word = template_var('terms')->{comments};
 
-    my $comments_re = qr/(?:comments|\Q$comments_word\E)\s*\#?\s*
-                         \d+(?:\s*,\s*\#?\s*\d+)+/ix;
-    while ($text =~ m/($comments_re)/go) {
+    my $comments_re = qr/(?:comments|\Q$comments_word\E)$s*\#?$s*
+                         \d+(?:$s*,$s*\#?$s*\d+)+/ix;
+    while ($text =~ m/($comments_re)/g) {
         my $offset = $-[0];
         my $length = $+[0] - $-[0];
         my $match  = $1;
 
-        $match =~ s|((?:#\s*)?(\d+))|<a href="$current_bugurl#c$2">$1</a>|g;
+        $match =~ s|((?:#$s*)?(\d+))|<a href="$current_bugurl#c$2">$1</a>|g;
         substr($text, $offset, $length) = $match;
     }