elasticsearch/logstash-contrib — pull request #41 by robin13 (2014-04-09 09:31:13+00:00)
Title: bytes2human and depercentage

bytes2human - allows conversion to or from human readable bytes (e.g. "2.5 KB" -> 2500)
depercentage - convert percentages in string to numeric value (e.g. "35.4%" -> 0.354)

I am not primarily a ruby developer... please use with care, better still review and improve!