# File lib/criteria/file.rb, line 7
    def initialize(filename, *cols)
      @_filename      = filename
      @_types         = []
      @_cols          = []
      @criterion_type = FileCriterion
      @split          = /\s*,\s*/
      @skip           = 0

      cols.each {
        | x |
        if(x.is_a? Array)
          @_cols  << x[0]
          @_types << (x[1] || String)
        else
          @_cols  << x
          @_types << String
        end
      }
    end