name: SampleSpec
id: 3
header_fields:
  - name: "hdr_msg_type"
    id: 1
    type: Fixed
    len: 4
    data_encoding: ASCII
    children: []
messages:
  - name: "1100 - Authorization"
    selector:
      - "1100"
      - "1110"
    id: 1
    fields:
      - name: "message_type"
        id: 1
        type: Fixed
        len: 4
        data_encoding: ASCII

      - name: "bitmap"
        id: 2
        type: Bitmapped
        len: 0
        data_encoding: BINARY
        children:
          - name: "pan"
            id: 3
            type: Variable
            len: 2
            len_encoding: ASCII
            data_encoding: ASCII
            position: 2

          - name: "proc_code"
            id: 4
            type: Fixed
            len: 6
            data_encoding: ASCII
            position: 3

          - name: "amount"
            id: 8
            type: Fixed
            len: 12
            data_encoding: ASCII
            position: 4

          - name: "stan"
            id: 9
            type: Fixed
            len: 6
            data_encoding: ASCII
            key: true
            position: 11

          - name: "expiration_date"
            id: 16
            type: Fixed
            len: 4
            data_encoding: ASCII
            position: 14

          - name: "country_code"
            id: 17
            type: Fixed
            len: 3
            data_encoding: EBCDIC
            position: 19

          - name: "approval_code"
            id: 10
            type: Fixed
            len: 6
            data_encoding: ASCII
            position: 38

          - name: "action_code"
            id: 11
            type: Fixed
            len: 3
            data_encoding: ASCII
            position: 39

          - name: "pin_data"
            id: 12
            type: Fixed
            len: 8
            data_encoding: BINARY
            position: 52

          - name: "private_1"
            id: 18
            type: Variable
            len: 2
            len_encoding: BCD
            data_encoding: ASCII
            position: 61

          - name: "private_2"
            id: 19
            type: Variable
            len: 1
            len_encoding: BINARY
            data_encoding: EBCDIC
            position: 62

          - name: "private_3"
            id: 20
            type: Variable
            len: 3
            len_encoding: EBCDIC
            data_encoding: ASCII
            position: 63

          - name: "mac_1"
            id: 21
            type: Fixed
            len: 8
            data_encoding: BINARY
            position: 64

          - name: "key_mgmt_data"
            id: 14
            type: Fixed
            len: 4
            data_encoding: ASCII
            position: 96

          - name: "mac_2"
            id: 22
            type: Fixed
            len: 8
            data_encoding: BINARY
            position: 128

          - name: "reserved_data"
            id: 14
            type: Fixed
            len: 4
            data_encoding: ASCII
            position: 160

  - name: "1420 - Reversal"
    selector:
      - "1420"
      - "1430"
    id: 2
    fields:
      - name: "message_type"
        id: 1
        type: Fixed
        len: 4
        data_encoding: ASCII

      - name: "bitmap"
        id: 2
        type: Bitmapped
        len: 0
        data_encoding: BINARY
        children:
          - name: "pan"
            id: 3
            type: Variable
            len: 2
            len_encoding: ASCII
            data_encoding: ASCII
            position: 2

          - name: "proc_code"
            id: 4
            type: Fixed
            len: 6
            data_encoding: ASCII
            position: 3

          - name: "amount"
            id: 8
            type: Fixed
            len: 12
            data_encoding: ASCII
            position: 4

          - name: "stan"
            id: 9
            type: Fixed
            len: 6
            data_encoding: ASCII
            key: true
            position: 11

          - name: "expiration_date"
            id: 16
            type: Fixed
            len: 4
            data_encoding: ASCII
            position: 14

          - name: "country_code"
            id: 17
            type: Fixed
            len: 3
            data_encoding: EBCDIC
            position: 19

          - name: "approval_code"
            id: 10
            type: Fixed
            len: 6
            data_encoding: ASCII
            position: 38

          - name: "action_code"
            id: 11
            type: Fixed
            len: 3
            data_encoding: ASCII
            position: 39

          - name: "private_3"
            id: 20
            type: Variable
            len: 3
            len_encoding: EBCDIC
            data_encoding: ASCII
            position: 63

          - name: "key_mgmt_data"
            id: 14
            type: Fixed
            len: 4
            data_encoding: ASCII
            position: 96

          - name: "reserved_data"
            id: 14
            type: Fixed
            len: 4
            data_encoding: ASCII
            position: 160