Rot13 in Go

Welcome to the Rot13 in Go page! Here, you'll find the source code for this program as well as a description of how the program works.

Current Solution

package main

import (
	"fmt"
	"os"
	"strings"
)

func rot13(str string) string {
	return strings.Map(encryptRune, str)
}

func encryptRune(r rune) rune {
	if r >= 65 && r <= 90 {
		return (((r - 65) + 13) % 26) + 65
	} else if r >= 97 && r <= 122 {
		return (((r - 97) + 13) % 26) + 97
	} else {
		return r
	}
}

func exitWithError() {
	fmt.Println("Usage: please provide a string to encrypt")
	os.Exit(1)
}

func main() {
	if len(os.Args) != 2 {
		exitWithError()
	}

	if len(os.Args[1]) <= 0 {
	    exitWithError()
	}

	fmt.Println(rot13(os.Args[1]))
}

Rot13 in Go was written by:

• Parker Johansen

If you see anything you'd like to change or update, please consider contributing.

How to Implement the Solution

No 'How to Implement the Solution' section available. Please consider contributing.

How to Run the Solution

No 'How to Run the Solution' section available. Please consider contributing.