frostfs-node/pkg/util/locode/column/country.go

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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 a string and returns the 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
}