Time for an 2014 update…

Task/Execute-a-Markov-algorithm/Ruby/execute-a-markov-algorithm-1.rb

@@ -0,0 +1,20 @@
+def setup(ruleset)
+  ruleset.each_line.inject([]) do |rules, line|
+    if line =~ /^\s*#/
+      rules
+    elsif line =~ /^(.+)\s+->\s+(\.?)(.*)$/
+      rules << [$1, $3, $2 != ""]
+    else
+      raise "Syntax error: #{line}"
+    end
+  end
+end
+
+def morcov(ruleset, input_data)
+  rules = setup(ruleset)
+  while (matched = rules.find { |match, replace, term|
+    input_data[match] and input_data.sub!(match, replace)
+    }) and !matched[2]
+  end
+  input_data
+end