Merge pull request #638 from kachick/implement-string-each_byte

Implement String#each_byte, String#bytes

lib-topaz/string.rb

@@ -116,6 +116,20 @@ def each_char(&block)
   end
   alias chars each_char
 
+  def each_byte(&block)
+    return self.enum_for(:each_byte) unless block
+
+    i = 0
+    limit = self.length
+    while i < limit
+      yield self.getbyte(i)
+      i += 1
+    end
+
+    self
+  end
+  alias bytes each_byte
+
   def upto(max, exclusive = false, &block)
     return self.enum_for(:upto, max, exclusive) unless block
 

spec/tags/core/string/each_byte_tags.txt

@@ -1,4 +1 @@
-fails:String#each_byte passes each byte in self to the given block
 fails:String#each_byte keeps iterating from the old position (to new string end) when self changes
-fails:String#each_byte returns self
-fails:String#each_byte returns an enumerator when no block given