tasks a-s

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

@@ -0,0 +1,20 @@
+raise "Please input an input code file, an input data file, and an output file." if ARGV.size < 3
+
+rules = File.readlines(ARGV[0]).inject([]) do |rules, line|
+  if line =~ /^\s*#/
+    rules
+  elsif line =~ /^(.+)\s+->\s+(\.?)(.*)$/
+    rules << [$1, $3, $2 != ""]
+  else
+    raise "Syntax error: #{line}"
+  end
+end
+
+File.open(ARGV[2], "w") do |file|
+  file.write(File.read(ARGV[1]).tap { |input_data|
+    while (matched = rules.find { |match, replace, term|
+      input_data[match] and input_data.sub!(match, replace)
+    }) and !matched[2]
+    end
+  })
+end