frostfs-node/pkg/util/locode/column/country.go
Pavel Karpy 923f84722a Move to frostfs-node
Signed-off-by: Pavel Karpy <p.karpy@yadro.com>
2022-12-28 15:04:29 +03:00

38 lines
774 B
Go

package locodecolumn
import (
"fmt"
"github.com/TrueCloudLab/frostfs-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 l := len(s); l != countryCodeLen {
return nil, fmt.Errorf("incorrect country code length: expect: %d, got: %d",
countryCodeLen,
l,
)
}
for i := range s {
if !isUpperAlpha(s[i]) {
return nil, locode.ErrInvalidString
}
}
cc := CountryCode{}
copy(cc[:], s)
return &cc, nil
}