54 lines
749 B
Go
54 lines
749 B
Go
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package base58
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import (
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"math"
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"slices"
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)
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var (
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byteabet = []byte("bMJZSrnxEyq8kN3UYQL5oXwV7BCFRtvpmDf1shAuHzKicTjeG29Pg4adW6")
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base = len(byteabet)
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)
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func Encode(num int) string {
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encoded := ""
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worknum := num
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for worknum > 0 {
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remainder := worknum % base
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worknum = worknum / base
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encoded = string(byteabet[remainder]) + encoded
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}
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return encoded
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}
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func Decode(encoded string) int {
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decoded := 0
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workEncoded := encoded
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for len(workEncoded) > 0 {
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index := workEncoded[0:1]
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power := len(workEncoded) - 1
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idx := slices.IndexFunc(byteabet, func(c byte) bool {
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return c == index[0]
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})
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decoded += idx * int(math.Pow(float64(base), float64(power)))
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workEncoded = workEncoded[1:]
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}
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return decoded
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}
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