/
main.go
53 lines (49 loc) · 1.13 KB
/
main.go
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package main
import (
"bufio"
"os"
"strings"
"unicode"
"regexp"
"fmt"
"crypto/rand"
"math/big"
)
func main() {
scanner := bufio.NewScanner(os.Stdin)
for scanner.Scan() {
sanitized, err := sanitize(scanner.Text())
if err != nil {
fmt.Println(err)
continue
}
tld, err := randomTLD()
if err != nil {
fmt.Println(err)
continue
}
fmt.Println(sanitized + "." + tld)
}
}
func sanitize(str string) (string, error) {
if matched, _ := regexp.MatchString("^[\\w\\s_-]+$", str); !matched {
return "", fmt.Errorf("Included invalid characters")
}
lower := strings.ToLower(str)
hyphened := []rune{}
for _, r := range lower {
if unicode.IsSpace(r) {
r = '-'
}
hyphened = append(hyphened, r)
}
return string(hyphened), nil
}
func randomTLD() (string, error) {
tlds := []string{"com", "org", "net"}
big, err := rand.Int(rand.Reader, big.NewInt(int64(len(tlds))))
if err != nil {
return "", err
}
return tlds[big.Int64()], nil
}