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

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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
}