frostfs-node/pkg/util/locode/column/country.go
Leonard Lyubich 0be35859ed [#316] locode: Define UN/LOCODE table data types
Define the data types needed to work with LOCODE's in NeoFS (country code,
location code, coordinates). Implement string parsers for new types.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2021-02-09 11:05:55 +03:00

33 lines
677 B
Go

package locodecolumn
import (
"github.com/nspcc-dev/neofs-node/pkg/util/locode"
)
const countryCodeLen = 2
// CountryCode represents ISO 3166 alpha-2 Country Code.
type CountryCode [countryCodeLen]uint8
// Symbols returns digits of the country code.
func (cc *CountryCode) Symbols() [countryCodeLen]uint8 {
return *cc
}
// CountryCodeFromString parses string and returns country code.
func CountryCodeFromString(s string) (*CountryCode, error) {
if len(s) != countryCodeLen {
return nil, locode.ErrInvalidString
}
for i := range s {
if !isUpperAlpha(s[i]) {
return nil, locode.ErrInvalidString
}
}
cc := CountryCode{}
copy(cc[:], s)
return &cc, nil
}