lib/unicode/confusable.rb in unicode-confusable-1.2.0 vs lib/unicode/confusable.rb in unicode-confusable-1.3.0

@@ -14,8 +14,18 @@
         UnicodeNormalize.normalize(string, :nfd).each_codepoint.map{ |codepoint|
           INDEX[codepoint] || codepoint
         }.flatten.pack("U*"), :nfd
       )
     end
+
+    def self.list(char, partial_mapping_allowed = true)
+      require_relative 'confusable/index' unless defined? ::Unicode::Confusable::INDEX
+      codepoint = char.codepoints.first or raise ArgumentError, "no data given to Unicode::Confusable.list"
+      if partial_mapping_allowed
+        INDEX.select{ |k,v| v == codepoint || v.is_a?(Array) && v.include?(codepoint) }.keys.map{ |codepoint| [codepoint].pack("U*") }
+      else
+        INDEX.select{ |k,v| v == codepoint }.keys.map{ |codepoint| [codepoint].pack("U") }
+      end
+    end
   end
 end