nekolib/include/neko/string.hpp
2019-06-22 10:00:54 -04:00

78 lines
2.2 KiB
C++

/*
* Nekolib: An extention to the standard libraries for ease of use
* Copyright (C) 2018 Rebekah Rowe
*
* This program 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.
*
* This program 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 this program. If not, see <https://www.gnu.org/licenses/>.
*/
#pragma once
#include <string_view>
#include <vector>
namespace neko {
// Seperates multiple strings by delimiter
std::vector<std::string_view> sepstr(std::string_view, char delim = ' ');
// Seperates multiple args from one string, console argument style
std::vector<std::string_view> sepstr_q(std::string_view);
// portable case insensitive operations
namespace fuz {
const char* strstr(const char* main, const char* sub);
size_t strstr(std::string_view main, std::string_view sub);
int strcmp(const char* str1, const char* str2);
bool strcmp(std::string_view str1, std::string_view str2);
} // namespace fuz
// Constant compiletime operations
namespace cexpr {
constexpr size_t strlen(const char* str) {
size_t i = 0;
while (str[i] != '\0') i++;
return i;
}
constexpr int strcmp(const char* str1, const char* str2) {
int size_1 = strlen(str1), size_2 = strlen(str2);
if (size_1 != size_2) return size_2 - size_1;
for (size_t i = 0; i < size_1; i++)
if (str1[i] != str2[i]) return str2[i] - str1[i];
return 0;
}
// TODO
/*constexpr const char* strstr(const char* main, const char* sub) {
size_t main_len = strlen(main)
size_t sub_len = strlen(sub);
size_t diff = main_len - sub_len;
if (diff < 0)
return nullptr;
size_t sub_pos = 0;
size_t cur;
for (size_t i = 0; i < main_len; i++) {
if (main[i] == sub[i])
start = 0;
}
}*/
} // namespace cexpr
} // namespace neko