You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 
 
gitea/vendor/github.com/ssor/bom/bom.go

34 lines
640 B

package bom
import (
"bytes"
"io"
"io/ioutil"
)
const (
bom0 = 0xef
bom1 = 0xbb
bom2 = 0xbf
)
// CleanBom returns b with the 3 byte BOM stripped off the front if it is present.
// If the BOM is not present, then b is returned.
func CleanBom(b []byte) []byte {
if len(b) >= 3 &&
b[0] == bom0 &&
b[1] == bom1 &&
b[2] == bom2 {
return b[3:]
}
return b
}
// NewReaderWithoutBom returns an io.Reader that will skip over initial UTF-8 byte order marks.
func NewReaderWithoutBom(r io.Reader) (io.Reader, error) {
bs, err := ioutil.ReadAll(r)
if err != nil {
return nil, err
}
return bytes.NewReader(CleanBom(bs)), nil
}