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package utf8
import (
"unicode/utf8"
"github.com/segmentio/asm/ascii"
)
type Validation byte
const (
Invalid = 0
UTF8 = 0b01
ASCII = 0b10 | UTF8
)
func (v Validation) IsASCII() bool { return (v & ASCII) == ASCII }
func (v Validation) IsUTF8() bool { return (v & UTF8) == UTF8 }
func (v Validation) IsInvalid() bool { return v == Invalid }
func validate(p []byte) Validation {
if ascii.Valid(p) {
return ASCII
}
if utf8.Valid(p) {
return UTF8
}
return Invalid
}
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