Added a preprocess script.

preprocess.rb

@@ -0,0 +1,24 @@
+#!/usr/bin/ruby -w
+
+=begin
+Scheduling Algorithms Trace Event Preprocessor
+
+Description: Takes a CSV file with two columns
+  (event time and event type), formatted with the
+  QNX Momentics Trace Event profiler.
+
+Usage: 
+  ./preprocess test_in
+
+=end
+
+require 'csv'
+
+CSV.open(ARGV[0] + "-out", 'w') do |csv_out|
+  CSV.foreach(ARGV[0], 'r') do |row|
+    row[0].gsub!(/[mus\s]/, '')
+    row[1].gsub!(/[\D]/, '')
+    csv_out << row
+  end
+end
+