CLI and library to generate QR codes.

Generate QR codes from input string. Comes with CLI and as a library.

kewar

(pronounced qr)

Generate QR code from given input string

Installation

cabal install exe:kewar

# or

cabal install lib:kewar

CLI

Example

$ kewar --error-correction=H "Hello World"

Usage

$ kewar [options] [INPUT]

kewar is a tool to generate QR codes from any supported string, utilizing an error correction level to allow data recovery.

For more information on QR codes: https://www.qrcode.com/en/

Options

  -v         --version                   print qr version
  -h         --help                      print this help
  -e[LEVEL]  --error-correction[=LEVEL]  use error correction LEVEL for encoding. Defaults to Q

Library

module Main where

import Kewar (generate, CorrectionLevel(Q))
import MyModule (doStuff)

main = do
  let input = "my string"
  case generate input Q of
    Left e -> print e
    Right grid -> doStuff grid