package locodecolumn import ( "fmt" "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/locode" ) const locationCodeLen = 3 // LocationCode represents 3-character code for the location. type LocationCode [locationCodeLen]uint8 // Symbols returns characters of the location code. func (lc *LocationCode) Symbols() [locationCodeLen]uint8 { return *lc } // LocationCodeFromString parses a string and returns the location code. func LocationCodeFromString(s string) (*LocationCode, error) { if l := len(s); l != locationCodeLen { return nil, fmt.Errorf("incorrect location code length: expect: %d, got: %d", locationCodeLen, l, ) } for i := range s { if !isUpperAlpha(s[i]) && !isDigit(s[i]) { return nil, locode.ErrInvalidString } } lc := LocationCode{} copy(lc[:], s) return &lc, nil }