ruby - proverb

ruby/proverb/proverb.rb

@@ -0,0 +1,21 @@
+# Proverb class
+class Proverb
+  def initialize(*args, qualifier: nil)
+    @inputs = args.to_a
+    @qualifier = "#{qualifier} " if qualifier
+  end
+
+  def to_s
+    lines.join("\n") + "And all for the want of a #{@qualifier}#{@inputs[0]}."
+  end
+
+  private
+
+  def lines
+    @inputs.map.with_index do |_, index|
+      next if index == @inputs.length - 1
+
+      "For want of a #{@inputs[index]} the #{@inputs[index + 1]} was lost."
+    end
+  end
+end