Barcoders is a barcode-encoding library for the Rust programming language.

Barcoders allows you to encode valid data for a chosen symbology into a Vec<u8> representation of the underlying binary structure. From here, you can take advantage one of builtin generators (for exporting to GIF, PNG, etc) or build your own.

Please note, Barcoders is under active development. Initial release is expected late November, 2015

Currently Supported

The ultimate goal of Barcoders is to provide encoding support for all major (and many not-so-major) symbologies.

Symbologies

• EAN-13
  • UPC-A
  • JAN
  • Bookland
• EAN-8
• EAN Supplementals
  • EAN-2
  • EAN-5
• Code39
• More coming!

Generators

• ASCII
• PNG
• GIF
• More coming! (PostScript, SVG, etc)

Examples

ASCII generation

extern crate barcoders;

use barcoders::sym::ean13::*;
use barcoders::generators::ascii::*;

let barcode = EAN13::new("750103131130".to_string()).unwrap();
let encoded: Vec<u8> = ean13.encode();
let ascii = ASCII::new().generate(&encoded);

assert_eq!(ascii.unwrap(),
"
# # ##   # #  ###  ##  # #  ### #### # ##  ## # # #    # ##  ## ##  ## #    # ###  # ### #  # #
# # ##   # #  ###  ##  # #  ### #### # ##  ## # # #    # ##  ## ##  ## #    # ###  # ### #  # #
# # ##   # #  ###  ##  # #  ### #### # ##  ## # # #    # ##  ## ##  ## #    # ###  # ### #  # #
# # ##   # #  ###  ##  # #  ### #### # ##  ## # # #    # ##  ## ##  ## #    # ###  # ### #  # #
# # ##   # #  ###  ##  # #  ### #### # ##  ## # # #    # ##  ## ##  ## #    # ###  # ### #  # #
# # ##   # #  ###  ##  # #  ### #### # ##  ## # # #    # ##  ## ##  ## #    # ###  # ### #  # #
# # ##   # #  ###  ##  # #  ### #### # ##  ## # # #    # ##  ## ##  ## #    # ###  # ### #  # #
# # ##   # #  ###  ##  # #  ### #### # ##  ## # # #    # ##  ## ##  ## #    # ###  # ### #  # #
# # ##   # #  ###  ##  # #  ### #### # ##  ## # # #    # ##  ## ##  ## #    # ###  # ### #  # #
# # ##   # #  ###  ##  # #  ### #### # ##  ## # # #    # ##  ## ##  ## #    # ###  # ### #  # #
".trim().to_string());

Image generation

extern crate barcoders;

use barcoders::sym::code39::*;
use barcoders::generators::image::*;
use std::fs::File;
use std::path::Path;

let barcode = Code39::new("1ISTHELONELIESTNUMBER".to_string()).unwrap();
let png = Image::PNG{height: 80, xdim: 1};

// The `encode` method returns a Vec<u8> of the binary representation of the
// generated barcode. This is useful if you want to add your own generator.
let encoded: Vec<u8> = barcode.encode();

// Image generators save the file to the given path and return a u32 indicating
// the number of bytes written to disk.
let mut path = File::create(&Path::new("my_barcode.png")).unwrap();
let bytes = png.generate(&encoded, &mut path).unwrap();

Tests

Note, some of the tests (intentionally) leave behind image files in ./target/debug that should be visually inspected for correctness.

$ cargo test