ruby - bracket-push

ruby/bracket-push/bracket_push.rb

@@ -0,0 +1,13 @@
+# Brackets class
+class Brackets
+  PAIRS = { '[' => ']', '{' => '}', '(' => ')' }.freeze
+
+  def self.paired?(text)
+    stack = []
+    text.chars.each do |char|
+      stack.push(char) if PAIRS.key?(char)
+      return false if PAIRS.key(char) && PAIRS.key(char) != stack.pop
+    end
+    stack.empty?
+  end
+end