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package player
import (
"fmt"
"regexp"
"unicode"
)
var validNameRe = regexp.MustCompile(`^[A-Za-z0-9 ]{1,30}$`)
func ValidName(name string) error {
if !validNameRe.MatchString(name) {
return fmt.Errorf("name must be 1-30 alphanumeric characters or spaces")
}
return nil
}
func ValidPassword(pw string) error {
if len(pw) > 128 {
return fmt.Errorf("Password too long.")
}
return nil
}
func StripControlCharacters(input string) string {
runes := make([]rune, 0, len(input))
for _, r := range input {
if r == '\n' || r == '\t' {
continue
}
if unicode.IsControl(r) {
continue
}
runes = append(runes, r)
}
return string(runes)
}
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