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/*
* InspIRCd -- Internet Relay Chat Daemon
*
* Copyright (C) 2021, 2023 Sadie Powell <sadie@witchery.services>
* Copyright (C) 2016 Attila Molnar <attilamolnar@hush.com>
*
* This file is part of InspIRCd. InspIRCd 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, version 2.
*
* 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 <http://www.gnu.org/licenses/>.
*/
#pragma once
#include "utility/string.h"
namespace insp
{
/** Combines a sequence of elements into a string.
* @param sequence A sequence of elements to combine.
* @param separator The value to separate the elements with. Defaults to ' ' (space).
*/
template<typename Collection, typename Separator = char>
inline std::string join(const Collection& sequence, Separator separator = ' ')
{
std::string joined;
if (sequence.empty())
return joined;
const std::string separatorstr = ConvToStr(separator);
for (const auto& element : sequence)
joined.append(ConvToStr(element)).append(separatorstr);
joined.erase(joined.end() - separatorstr.length());
joined.shrink_to_fit();
return joined;
}
/** Creates a view of a subsection of a string.
* @param str The string to create a view of.
* @param begin The position within the string to start the view at.
* @param end The position within the string to end the view at.
*/
template <typename Iterator>
std::string_view substring_view(const std::string& str, Iterator begin, Iterator end)
{
std::string_view sv = str;
sv.remove_prefix(std::distance(str.begin(), begin));
sv.remove_suffix(std::distance(end, str.end()));
return sv;
}
/** Get underlying C string of the string passed as parameter. Useful in template functions.
* @param str A `const char*` string.
*/
inline const char* tocstr(const char* str)
{
return str;
}
/** Get underlying C string of the string passed as parameter. Useful in template functions.
* @param str A `std::string` string.
*/
inline const char* tocstr(const std::string& str)
{
return str.c_str();
}
/** Check if two strings are equal case insensitively.
* @param str1 First string to compare.
* @param str2 Second string to compare.
* @return True if the strings are equal case-insensitively; otherwise, false.
*/
template <typename S1, typename S2>
inline bool equalsci(const S1& str1, const S2& str2)
{
return (!strcasecmp(tocstr(str1), tocstr(str2)));
}
}
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