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kamokan/test/simulation/num_to_token.cpp

64 lines
2.1 KiB
C++

/* Copyright 2017, Michele Santullo
* This file is part of "kamokan".
*
* "kamokan" is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* "kamokan" is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with "kamokan". If not, see <http://www.gnu.org/licenses/>.
*/
#include "num_to_token.hpp"
#include <cassert>
namespace kamokan {
namespace {
//const int g_any_min = 0;
//const int g_any_max = g_any_min + 'z' - 'a' - 1;
//const int g_vowel_min = g_any_max + 1;
//const int g_vowel_max = g_vowel_min + 5 - 1;
//const int g_consonant_min = g_vowel_max + 1;
//const int g_consonant_max = g_consonant_min + ('z' - 'a') - (g_vowel_max - g_vowel_min) - 1;
//char code_to_char (int parCode) {
// const char vowels[] = {'a', 'i', 'u', 'e', 'o'};
// const char consonants[] = {
// 'b', 'c', 'd', 'f', 'g', 'h', 'j', 'k', 'l', 'm', 'n', 'p',
// 'q', 'r', 's', 't', 'v', 'w', 'x', 'y', 'z'
// };
// static_assert(sizeof(vowels) == g_vowel_max - g_vowel_min + 1, "Wrong vowels count");
// static_assert(sizeof(consonants) == g_consonant_max - g_consonant_min + 1, "Wrong consonants count");
// if (parCode <= g_any_max)
// return static_cast<char>('a' + parCode - g_any_min);
// else if (parCode <= g_vowel_max)
// return vowels[parCode - g_vowel_min];
// else if (parCode <= g_consonant_max)
// return consonants[parCode - g_consonant_min];
// assert(false);
// return 'X';
//}
} //unnamed namespace
std::string num_to_token (int64_t parNum) {
assert(0 < parNum);
std::string retval;
do {
const auto remainder = parNum % ('z' - 'a' + 1);
retval.push_back(static_cast<char>('a' + remainder));
parNum /= ('z' - 'a' + 1);
} while (parNum);
return retval;
}
} //namespace kamokan