# File lib/facet/string/camelcase.rb, line 16
  def camelcase(first=false, on='_\s')
    if first
      gsub(/(^|[#{on}]+)([A-Za-z])/){ $2.upcase }    
    else
      gsub(/([#{on}]+)([A-Za-z])/){ $2.upcase }
    end
  end