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gs1

package module

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Versions in this module

v0

v0.1.0

Sep 22, 2026

Changes in this version

+ var ANMAT = Regulator

+ var ANVISA = Regulator

+ var COFEPRIS = Regulator

+ var ErrEmptyInput = errors.New("gs1: empty input")

+ var ErrInvalidCheckDigit = errors.New("gs1: invalid check digit")

+ var ErrInvalidData = errors.New("gs1: invalid data")

+ var ErrInvalidDate = errors.New("gs1: invalid date")

+ var ErrMissingRequiredAI = errors.New("gs1: missing required AI")

+ var ErrTruncatedData = errors.New("gs1: truncated data")

+ var ErrUnknownAI = errors.New("gs1: unknown application identifier")

+ var SNFA = Regulator

+ func ComputeGTINCheckDigit(partial string) (byte, error)

+ func ExpandUPCE(upce string) (string, error)

+ func ParseDate(yymmdd string) (time.Time, error)

+ func ParseDateRaw(yymmdd string) (string, error)

+ func ParseDateWithOptions(yymmdd string, opts DateOptions) (time.Time, error)

+ func ParseInto(input string, b *Barcode) error

+ func ValidateGTIN(gtin string) error

+ type AI struct

+ Code string

+ Format string

+ Name string

+ func LookupAI(code string) (AI, bool)

+ type Barcode struct

+ Elements []Element

+ Raw string

+ func Parse(input string) (Barcode, error)

+ func (b *Barcode) Reset()

+ func (b Barcode) BestBeforeDate() (time.Time, error)

+ func (b Barcode) Count() string

+ func (b Barcode) ExpirationDate() (time.Time, error)

+ func (b Barcode) GTIN() string

+ func (b Barcode) Get(ai string) (string, bool)

+ func (b Barcode) Lot() string

+ func (b Barcode) ProductionDate() (time.Time, error)

+ func (b Barcode) SSCC() string

+ func (b Barcode) SerialNumber() string

+ func (b Barcode) ValidateANMAT() error

+ func (b Barcode) ValidateANVISA() error

+ func (b Barcode) ValidateCOFEPRIS() error

+ func (b Barcode) ValidateSNFA() error

+ type DateFormat int

+ const DateFormatRaw

+ const DateFormatTime

+ type DateOptions struct

+ DayZero DayZeroPolicy

+ Format DateFormat

+ type DayZeroPolicy int

+ const DayZeroFirstDay

+ const DayZeroLastDay

+ type Element struct

+ AI string

+ Value string

+ type Regulator struct

+ Country string

+ Name string

+ RequiredAIs []string

+ func (r Regulator) Validate(b Barcode) error