Function newDataEncoder

encoder.go:118–160

newDataEncoder constructs a dataEncoder.

(t dataEncoderType)

// newDataEncoder constructs a dataEncoder.
func newDataEncoder(t dataEncoderType) *dataEncoder {
	d := &dataEncoder{}

	switch t {
	case dataEncoderType1To9:
		d = &dataEncoder{
			minVersion:                   1,
			maxVersion:                   9,
			numericModeIndicator:         bitset.New(b0, b0, b0, b1),
			alphanumericModeIndicator:    bitset.New(b0, b0, b1, b0),
			byteModeIndicator:            bitset.New(b0, b1, b0, b0),
			numNumericCharCountBits:      10,
			numAlphanumericCharCountBits: 9,
			numByteCharCountBits:         8,
		}
	case dataEncoderType10To26:
		d = &dataEncoder{
			minVersion:                   10,
			maxVersion:                   26,
			numericModeIndicator:         bitset.New(b0, b0, b0, b1),
			alphanumericModeIndicator:    bitset.New(b0, b0, b1, b0),
			byteModeIndicator:            bitset.New(b0, b1, b0, b0),
			numNumericCharCountBits:      12,
			numAlphanumericCharCountBits: 11,
			numByteCharCountBits:         16,
		}
	case dataEncoderType27To40:
		d = &dataEncoder{
			minVersion:                   27,
			maxVersion:                   40,
			numericModeIndicator:         bitset.New(b0, b0, b0, b1),
			alphanumericModeIndicator:    bitset.New(b0, b0, b1, b0),
			byteModeIndicator:            bitset.New(b0, b1, b0, b0),
			numNumericCharCountBits:      14,
			numAlphanumericCharCountBits: 13,
			numByteCharCountBits:         16,
		}
	default:
		log.Panic("Unknown dataEncoderType")
	}

	return d
}

// encode data as one or more segments and return the encoded data.
//