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.
51 lines
1.2 KiB
51 lines
1.2 KiB
package util |
|
|
|
import ( |
|
"fmt" |
|
"strconv" |
|
"strings" |
|
) |
|
|
|
// Decodes given byte into integer |
|
func ByteToInt(gByte byte) (int, error) { |
|
integer, err := strconv.Atoi(fmt.Sprintf("%d", gByte)) |
|
if err != nil { |
|
return 0, err |
|
} |
|
return integer, nil |
|
} |
|
|
|
// Decodes given integer bytes into integer, ignores the first bit |
|
// of every given byte in binary form |
|
func BytesToIntIgnoreFirstBit(gBytes []byte) (int64, error) { |
|
// represent each byte in size as binary and get rid from the first bit, |
|
// then concatenate filtered parts |
|
var filteredBits string |
|
for _, b := range gBytes { |
|
// ignore the first bit |
|
filteredPart := fmt.Sprintf("%08b", b)[1:] // byte is 8 bits |
|
filteredBits += filteredPart |
|
} |
|
|
|
// convert filtered binary into usable int64 |
|
integer, err := strconv.ParseInt(filteredBits, 2, 64) |
|
if err != nil { |
|
return -1, err |
|
} |
|
|
|
return integer, nil |
|
} |
|
|
|
// Converts given bytes into string, ignoring the first 31 non-printable ASCII characters. |
|
// (LOSSY, if given bytes contain some nasty ones) |
|
func ToStringLossy(gBytes []byte) string { |
|
var filteredBytes []byte |
|
for _, b := range gBytes { |
|
if b <= 31 { |
|
continue |
|
} |
|
filteredBytes = append(filteredBytes, b) |
|
} |
|
|
|
return strings.ToValidUTF8(string(filteredBytes), "") |
|
}
|
|
|