// Local returns a friendly national representation of the phone number, for
// example, "+14105554092" is returned as "(410) 555-4092". If the phone number
// is not in E.164 format, we try to parse it as a US number. If we cannot
// parse it as a US number, it is returned as is.
func (pn PhoneNumber) Local() string {
num, err := libphonenumber.Parse(string(pn), "US")
if err != nil {
return string(pn)
}
return libphonenumber.Format(num, libphonenumber.NATIONAL)
}
// Friendly returns a friendly international representation of the phone
// number, for example, "+14105554092" is returned as "+1 410-555-4092". If the
// phone number is not in E.164 format, we try to parse it as a US number. If
// we cannot parse it as a US number, it is returned as is.
func (pn PhoneNumber) Friendly() string {
num, err := libphonenumber.Parse(string(pn), "US")
if err != nil {
return string(pn)
}
return libphonenumber.Format(num, libphonenumber.INTERNATIONAL)
}
func formatE164(tel string, country string) string {
if tel[0] == '+' {
return pre.ReplaceAllString(tel, "")
}
num, err := libphonenumber.Parse(tel, country)
if err != nil {
log.Println(err)
return tel
}
return libphonenumber.Format(num, libphonenumber.E164)
}
// NewPhoneNumber parses the given value as a phone number or returns an error
// if it cannot be parsed as one. If a phone number does not begin with a plus
// sign, we assume it's a US national number. Numbers are stored in E.164
// format.
func NewPhoneNumber(pn string) (PhoneNumber, error) {
if len(pn) == 0 {
return "", ErrEmptyNumber
}
num, err := libphonenumber.Parse(pn, "US")
// Add some better error messages - the ones in libphonenumber are generic
switch {
case err == libphonenumber.ErrNotANumber:
return "", fmt.Errorf("twilio: Invalid phone number: %s", pn)
case err == libphonenumber.ErrInvalidCountryCode:
return "", fmt.Errorf("twilio: Invalid country code for number: %s", pn)
case err != nil:
return "", err
}
return PhoneNumber(libphonenumber.Format(num, libphonenumber.E164)), nil
}
func normalizeNumber(number string) (string, error) {
if utf8.RuneCountInString(number) == 10 && !strings.HasPrefix(number, "+") {
number = "1" + number
}
if !strings.HasPrefix(number, "+") {
number = "+" + number
}
phoneNum, err := libphonenumber.Parse(number, "US")
if err != nil {
return "", err
}
return libphonenumber.Format(phoneNum, libphonenumber.E164), nil
}