Barcoder

Production-Ready Code 39 Barcode Generator

Features

• Code 39 Support: Implements the widely-supported Code 39 barcode standard
• Input Validation: Validates characters before encoding to prevent runtime errors
• Multiple Output Formats:
• ASCII art for console/terminal display
• SVG format for web applications and printing
• Error Handling: Comprehensive error handling with descriptive messages
• Configurable Options: Customizable width, height, and quiet zones
• Production Ready: Includes proper documentation, validation, and error handling

Supported Characters

• Numbers: 0-9
• Uppercase letters: A-Z
• Special characters: space, -, ., $, /, +, %

Usage Examples

# Basic ASCII output
{:ok, barcode} = BarcodeGenerator.generate("HELLO123")
IO.puts(barcode)

# SVG output for web use
{:ok, svg} = BarcodeGenerator.generate("PRODUCT001", format: :svg, width: 3, height: 50)
File.write!("barcode.svg", svg)

# Validate input
case BarcodeGenerator.validate_input("TEST123") do
  :ok -> IO.puts("Valid input")
  {:error, reason} -> IO.puts("Error: #{reason}")
end

Installation

If available in Hex, the package can be installed by adding barcoder to your list of dependencies in mix.exs:

def deps do
  [
    {:barcoder, "~> 0.1.0"}
  ]
end

Documentation can be generated with ExDoc and published on HexDocs. Once published, the docs can be found at https://hexdocs.pm/barcoder.