strmods.hpp

/*
 * mstd - Maipa's Standard Library
 *
 * Licensed under the BSD 3-Clause License with Attribution Requirement.
 * See the LICENSE file for details: https://github.com/MAIPA01/mstd/blob/main/LICENSE
 *
 * Copyright (c) 2025, Patryk Antosik (MAIPA01)
 */
 
#pragma once
#ifndef _MSTD_STRMODS_HPP_
    #define _MSTD_STRMODS_HPP_
 
    #include <mstd/config.hpp>
 
    #if !_MSTD_HAS_CXX17
_MSTD_WARNING("this is only available for c++17 and greater!");
    #else
 
        #include <mstd/string_types.hpp>
 
namespace mstd {
    inline std::string trim(const std::string_view str) {
        #if _MSTD_HAS_CXX20
        const std::string_view::const_iterator& start =
          std::ranges::find_if_not(str, [](const unsigned char ch) { return std::isspace(ch); });
 
        const std::string_view::const_iterator& end =
          std::ranges::find_if_not(str.rbegin(), str.rend(), [](const unsigned char ch) { return std::isspace(ch); }).base();
 
        #else
        const std::string_view::const_iterator& start =
          std::find_if_not(str.begin(), str.end(), [](const unsigned char ch) { return std::isspace(ch); });
 
        const std::string_view::const_iterator& end =
          std::find_if_not(str.rbegin(), str.rend(), [](const unsigned char ch) { return std::isspace(ch); }).base();
        #endif
 
        return (start < end) ? std::string(start, end) : std::string();
    }
} // namespace mstd
 
    #endif
#endif