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// Copyright © 2020 rsiddharth <s@ricketyspace.net>
// SPDX-License-Identifier: ISC
package lib
const b64_table = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"
func HexToBase64(hex string) string {
hb := []byte(hex)
b64 := ""
for i := 0; i <= len(hb)-3; i = i + 3 {
a := (HexCharToDec(hb[i])<<8 |
HexCharToDec(hb[i+1])<<4 |
HexCharToDec(hb[i+2]))
b64 += encode(a >> 6)
b64 += encode(a & 0x3f)
}
return b64
}
func encode(b uint16) string {
return string(b64_table[b])
}
// Return the index for a base64 character.
func index(c byte) uint32 {
for i := 0; i < 64; i++ {
if c == b64_table[i] {
return uint32(i)
}
}
return uint32(0)
}
// Strip space and newline characters from string.
func stripSpaceChars(s string) string {
ss := ""
for i := 0; i < len(s); i++ {
if s[i] == ' ' {
continue
}
if s[i] == '\n' {
continue
}
ss += string(s[i])
}
return ss
}
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