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// Copyright (C) 2022-2023 Luke Shumaker <lukeshu@lukeshu.com>
//
// SPDX-License-Identifier: GPL-2.0-or-later
package internal
const Hex = "0123456789abcdef"
func HexToInt(c rune) (byte, bool) {
switch {
case '0' <= c && c <= '9':
return byte(c) - '0', true
case 'a' <= c && c <= 'f':
return byte(c) - 'a' + 10, true
case 'A' <= c && c <= 'F':
return byte(c) - 'A' + 10, true
default:
return 0, false
}
}
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