string.hpp

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// Copyright (c) 2023-2025 Jakub Musiał
// This file is part of the CPP-AP project (https://github.com/SpectraL519/cpp-ap).
// Licensed under the MIT License. See the LICENSE file in the project root for full license information.
 
#pragma once
 
#include "concepts.hpp"
 
#include <algorithm>
#include <sstream>
#include <string_view>
 
namespace ap::util {
 
template <c_writable T>
[[nodiscard]] std::string as_string(const T& value) noexcept {
    std::ostringstream oss;
    oss << value;
    return oss.str();
}
 
[[nodiscard]] inline bool contains_whitespaces(std::string_view str) noexcept {
    return std::ranges::any_of(str, [](unsigned char c) { return std::isspace(c); });
}
 
template <std::ranges::range R>
requires(c_writable<std::ranges::range_value_t<R>>)
[[nodiscard]] std::string join(const R& range, const std::string_view delimiter = ", ") {
    std::ostringstream oss;
 
    auto it = std::ranges::begin(range);
    const auto end = std::ranges::end(range);
    if (it != end) {
        oss << *it;
        ++it;
        for (; it != end; ++it)
            oss << delimiter << *it;
    }
 
    return oss.str();
}
 
} // namespace ap::util