vex
Vex is a variable-length, lexicographically-sortable hex format for uint64 values.
It can be used instead of fmt.Sprintf("%016x", v) for shorter strings.
Usage
Values can be formatted to strings using the Format() function and formatted
strings can be parsed using the Parse() function. Easy peasy.
Format(v uint64) string
Parse(s string) (uint64, error)How it works
Vex simply formats a value as an unpadded hex-encoded number and then prepends the length of the resulting string (minus 1) as a hex value.
Here are some examples of encodings:
DECIMAL HEX VEX ZERO-PADDED
0 0 00 0000000000000000
1 1 01 0000000000000001
2 2 02 0000000000000002
10 a 0a 000000000000000a
15 f 0f 000000000000000f
16 10 110 0000000000000010
288 120 2120 0000000000000120