/*
This file is part of libhttpserver
Copyright (C) 2011-2019 Sebastiano Merlino
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
USA
*/
#include "httpserver/string_utilities.hpp"
#include
#include
#include
#include
#include
namespace httpserver {
namespace string_utilities {
const std::string to_upper_copy(const std::string& str) {
std::string result = str;
std::transform(result.begin(), result.end(), result.begin(), (int(*)(int)) std::toupper);
return result;
}
const std::string to_lower_copy(const std::string& str) {
std::string result = str;
std::transform(result.begin(), result.end(), result.begin(), (int(*)(int)) std::tolower);
return result;
}
const std::vector string_split(const std::string& s, char sep, bool collapse) {
std::vector result;
if (s.empty()) return result;
std::string::size_type start = 0;
std::string::size_type end;
while ((end = s.find(sep, start)) != std::string::npos) {
std::string token = s.substr(start, end - start);
if (!collapse || !token.empty()) {
result.push_back(std::move(token));
}
start = end + 1;
}
// Handle the last token (after the final separator)
// Only add if there's content or if not collapsing
// Note: match istringstream behavior which does not emit trailing empty token
if (start < s.size()) {
std::string token = s.substr(start);
if (!collapse || !token.empty()) {
result.push_back(std::move(token));
}
}
return result;
}
bool is_valid_hex(const std::string& s) {
for (char c : s) {
if (!((c >= '0' && c <= '9') || (c >= 'a' && c <= 'f') ||
(c >= 'A' && c <= 'F'))) {
return false;
}
}
return true;
}
unsigned char hex_char_to_val(char c) {
if (c >= '0' && c <= '9') return static_cast(c - '0');
if (c >= 'a' && c <= 'f') return static_cast(c - 'a' + 10);
if (c >= 'A' && c <= 'F') return static_cast(c - 'A' + 10);
return 0;
}
} // namespace string_utilities
} // namespace httpserver