lib/polyfill/v2_5/string.rb in polyfill-1.3.0 vs lib/polyfill/v2_5/string.rb in polyfill-1.4.0

@@ -36,8 +36,28 @@
 
         prefixes.any? do |prefix|
           prefix.is_a?(Regexp) ? self[/\A#{prefix}/] : super(prefix)
         end
       end
+
+      def grapheme_clusters
+        return scan(/\X/, &::Proc.new) if block_given?
+
+        scan(/\X/)
+      end
+
+      def each_grapheme_cluster
+        unless block_given?
+          grapheme_clusters = scan(/\X/)
+
+          return ::Enumerator.new(grapheme_clusters.size) do |yielder|
+            grapheme_clusters.each do |grapheme_cluster|
+              yielder.yield(grapheme_cluster)
+            end
+          end
+        end
+
+        scan(/\X/, &::Proc.new)
+      end
     end
   end
 end