35 lines
940 B
C++
35 lines
940 B
C++
/*
|
|
* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
|
|
*
|
|
* Copyright 2018 Danny Robson <danny@nerdcruft.net>
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include "../view.hpp"
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
namespace cruft::encode {
|
|
template <typename ValueT>
|
|
ValueT
|
|
decode36 (cruft::view<char const*> &src)
|
|
{
|
|
ValueT accum = 0;
|
|
for (auto const i: src) {
|
|
accum *= 36;
|
|
|
|
switch (i) {
|
|
case '0'...'9': accum += i - '0'; continue;
|
|
case 'a'...'z': accum += i - 'a' + 10; continue;
|
|
case 'A'...'Z': accum += i - 'A' + 10; continue;
|
|
default:
|
|
throw std::invalid_argument ("invalid character");
|
|
}
|
|
}
|
|
|
|
return accum;
|
|
}
|
|
}
|