# File lib/facets/core/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