method

convert_fields

v2_5_5 - Show latest stable - Class: CSV

convert_fields(fields, headers = false)

private

Processes fields with @converters, or @header_converters if headers is passed as true, returning the converted field set. Any converter that changes the field into something other than a String halts the pipeline of conversion for that field. This is primarily an efficiency shortcut.

# File lib/csv.rb, line 2200
  def convert_fields(fields, headers = false)
    # see if we are converting headers or fields
    converters = headers ? @header_converters : @converters

    fields.map.with_index do |field, index|
      converters.each do |converter|
        break if headers && field.nil?
        field = if converter.arity == 1  # straight field converter
          converter[field]
        else                             # FieldInfo converter
          header = @use_headers && !headers ? @headers[index] : nil
          converter[field, FieldInfo.new(index, lineno, header)]
        end
        break unless field.is_a? String  # short-circuit pipeline for speed
      end
      field  # final state of each field, converted or original
    end
  end

convert_fields

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