48 lines
743 B
Go
48 lines
743 B
Go
package main
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import (
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"io"
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"os"
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"strings"
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"fmt"
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)
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// TODO: Finish this
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type rot13Reader struct {
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r io.Reader
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}
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func (r rot13Reader) Read(b []byte) (int, error) {
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tmp := make([]byte, 8)
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n, err := r.Read(tmp)
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fmt.Println(tmp)
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if err != nil {
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return n, err
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}
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for i, e := range tmp {
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b[i] = rot13shift(e)
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}
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fmt.Println(b)
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return n, nil
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}
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func rot13shift(b byte) byte {
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if b >= 'N' && b <= 'Z' {
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return 'A' + ('N' - b)
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} else if b >= 'n' && b <= 'z' {
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return 'a' + ('n' - b)
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} else if b >= 'A' && b <= 'M' {
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return 'N' + ('A' - b)
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} else if b >= 'a' && b <= 'm' {
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return 'n' + ('a' - b)
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}
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return 0
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}
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func main() {
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s := strings.NewReader("Lbh penpxrq gur pbqr!")
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r := rot13Reader{s}
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io.Copy(os.Stdout, &r)
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}
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