GS1 (gs1_barcode v0.1.2)

Feature-rich GS1 barcode lib for Elixir.

This module serves as a namespace for the lib. It does not contain business logic itself. Please refer to the specific modules below for functionality.

Key Modules

• GS1.Code - detect, validate, generate, convert, normalize, lookup range/country for GTIN-8,12,13,14 and SSCC-18.
• GS1.Parser - parse GS1 element strings into GS1 Data Structure.
• GS1.DataStructure - structured representation of parsed GS1 data.
• GS1.Validator - validate GS1 Data Structure against business rules, mandatory field requirements, and cross-field dependencies.
• GS1.Formatter - format GS1 Data Structures into various representations.

DSL

• GS1.Validator.Constraint - declarative DSL for defining custom validation rules and constraints for AIs in GS1 Data Structures.

Utils

• GS1.Utils - utils and helper functions.
• GS1.DateUtils - parsing and validation utilities for GS1 dates.

Foundation

• GS1.CheckDigit - calculate and verify GS1 standard check digits.
• GS1.CompanyPrefix - registry and lookup functions for GS1 Company Prefix ranges.
• GS1.AIRegistry - registry of all Application Identifiers.
• GS1.FNC1Prefix - handling of FNC1 symbology identifiers and prefix detection (GS1-128, DataMatrix, and QR Code).
• GS1.Consts - GS1-specific constants and definitions.
• GS1.Tokenizer - NimbleParsec-based tokenizer for low-level tokenization of GS1 element strings.