lib/citeproc/names.rb in citeproc-1.0.0 vs lib/citeproc/names.rb in citeproc-1.0.1

@@ -376,10 +376,11 @@
       key = 'non-dropping-particle' if key == 'particle'
       super key
     end
 
     def initials_of(string)
+      return unless string
       string = string.dup
 
       string.gsub!(/([[:upper:]])[^[:upper:]\s-]*\s*/, "\\1#{initialize_with}")
 
       initialize_hyphen!(string)
@@ -395,9 +396,10 @@
         string.gsub!(/\s*-/, '-')
       end
     end
 
     def existing_initials_of(string)
+      return unless string
       string = string.dup
 
       string.gsub!(/([[:upper:]])([[:upper:]])/, '\1 \2')
       string.gsub!(/\b([[:upper:]])\b[^[:alpha:]-]*/, "\\1#{initialize_with}")