Merge pull request #593 from kachick/implement-string-each_char

Implement String#each_char, String#chars

lib-topaz/string.rb

@@ -60,6 +60,20 @@ def succ
   end
   alias next succ
 
+  def each_char(&block)
+    return self.enum_for(:each_char) unless block
+
+    i = 0
+    limit = self.length
+    while i < limit
+      yield self[i]
+      i += 1
+    end
+
+    self
+  end
+  alias chars each_char
+
   def upto(max, exclusive = false, &block)
     return self.enum_for(:upto, max, exclusive) unless block
 

spec/tags/core/string/chars_tags.txt

@@ -1,4 +1 @@
-fails:String#chars passes each char in self to the given block
-fails:String#chars returns self
 fails:String#chars is unicode aware
-fails:String#chars returns an enumerator when no block given

spec/tags/core/string/each_char_tags.txt

@@ -1,4 +1 @@
-fails:String#each_char passes each char in self to the given block
-fails:String#each_char returns self
 fails:String#each_char is unicode aware
-fails:String#each_char returns an enumerator when no block given