A simple program to print QR Codes on your terminal

qr.go

// Copyright 2017 Google Inc. All rights reserved.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to writing, software distributed
// under the License is distributed on a "AS IS" BASIS, WITHOUT WARRANTIES OR
// CONDITIONS OF ANY KIND, either express or implied.
//
// See the License for the specific language governing permissions and
// limitations under the License.

package main

import (
	"fmt"
	"log"

	qr "github.com/skip2/go-qrcode"
)

func main() {
	c, err := qr.New("http://justforfunc.com", qr.Highest)
	if err != nil {
		log.Fatal(err)
	}
	for _, row := range c.Bitmap() {
		for _, cell := range row {
			if cell {
				fmt.Printf("\033[40m  \033[0m")
			} else {
				fmt.Printf("\033[47m  \033[0m")
			}
		}
		fmt.Println()
	}
}