Rename ragel ruby samples to match language name

samples/Ragel in Ruby Host/simple_tokenizer.rl

@@ -0,0 +1,73 @@
+=begin
+%%{
+  machine simple_tokenizer;
+
+  action MyTs {
+    my_ts = p
+  }
+  action MyTe {
+    my_te = p
+  }
+  action Emit {
+    emit data[my_ts...my_te].pack('c*')
+    my_ts = nil
+    my_te = nil    
+  }
+
+  foo = 'STARTFOO' any+ >MyTs :>> 'ENDFOO' >MyTe %Emit;
+  main := ( foo | any+ )*;
+
+}%%
+=end
+
+# Scans a file for "STARTFOO[...]ENDFOO" blocks and outputs their contents.
+#
+# ENV['CHUNK_SIZE'] determines how much of the file to read in at a time, allowing you to control memory usage.
+#
+# Does not use ragel's scanner functionality because no backtracking is needed.
+class SimpleTokenizer
+  attr_reader :path
+
+  def initialize(path)
+    @path = path
+    %% write data;
+    # % (this fixes syntax highlighting)
+  end
+
+  def emit(foo)
+    $stdout.puts foo
+  end
+
+  def perform
+    # So that ragel doesn't try to get it from data.length
+    pe = :ignored
+    eof = :ignored
+
+    %% write init;
+    # % (this fixes syntax highlighting)
+
+    leftover = []
+    my_ts = nil
+    my_te = nil
+    
+    File.open(path) do |f|
+      while chunk = f.read(ENV['CHUNK_SIZE'].to_i)
+        data = leftover + chunk.unpack('c*')
+        p = 0
+        pe = data.length
+        %% write exec;
+        # % (this fixes syntax highlighting)
+        if my_ts
+          leftover = data[my_ts..-1]
+          my_te = my_te - my_ts if my_te
+          my_ts = 0
+        else
+          leftover = []
+        end
+      end
+    end
+  end
+end
+
+s = SimpleTokenizer.new ARGV[0]
+s.perform