78 lines
1.9 KiB
C
78 lines
1.9 KiB
C
|
#pragma once
|
||
|
|
|
||
|
|
#include "precompiled.h"
|
||
|
|
|
||
|
|
namespace gd {
|
||
|
|
class help_requested : public std::invalid_argument
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
help_requested() : std::invalid_argument("Help requested.") {}
|
||
|
|
};
|
||
|
|
|
||
|
|
class runtime_error : public std::runtime_error
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
runtime_error(std::string_view const what) : std::runtime_error(std::string{ what }) {}
|
||
|
|
};
|
||
|
|
} // namespace gd
|
||
|
|
|
||
|
|
inline void raise_if(bool expr, std::string_view const message = "Invalid argument.")
|
||
|
|
{
|
||
|
|
if (expr) {
|
||
|
|
throw gd::runtime_error(message);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
template<typename T>
|
||
|
|
concept PassedParamsStruct = requires(T params) {
|
||
|
|
{
|
||
|
|
params.gd_word
|
||
|
|
} -> std::convertible_to<std::string_view>;
|
||
|
|
params.assign("a", "b");
|
||
|
|
};
|
||
|
|
|
||
|
|
template<PassedParamsStruct T>
|
||
|
|
auto fill_args(std::span<std::string_view const> const args) -> T
|
||
|
|
{
|
||
|
|
auto params = T{};
|
||
|
|
for (auto it = std::begin(args); it != std::end(args);) {
|
||
|
|
if (*it == "--help" or *it == "-h") {
|
||
|
|
throw gd::help_requested();
|
||
|
|
}
|
||
|
|
std::ptrdiff_t advance = 1;
|
||
|
|
std::string_view value = (std::next(it) != std::end(args)) ? *std::next(it) : "";
|
||
|
|
|
||
|
|
if (it->starts_with("-")) {
|
||
|
|
// Expect next arg to be the value.
|
||
|
|
raise_if(value.empty() or value.starts_with("-"));
|
||
|
|
advance = 2;
|
||
|
|
}
|
||
|
|
|
||
|
|
params.assign(*it, value);
|
||
|
|
it += advance;
|
||
|
|
}
|
||
|
|
if (params.gd_word.empty()) {
|
||
|
|
throw gd::help_requested();
|
||
|
|
}
|
||
|
|
return params;
|
||
|
|
}
|
||
|
|
|
||
|
|
auto determine_card_class(int64_t const card_queue, int64_t const card_type) noexcept -> std::string_view;
|
||
|
|
|
||
|
|
template<std::integral Integral>
|
||
|
|
auto parse_number(std::string_view const s) -> std::optional<Integral>
|
||
|
|
{
|
||
|
|
if (Integral value{}; std::from_chars(s.begin(), s.end(), value).ec == std::errc{})
|
||
|
|
return value;
|
||
|
|
else
|
||
|
|
return std::nullopt;
|
||
|
|
};
|
||
|
|
|
||
|
|
auto is_space(char const ch) noexcept -> bool;
|
||
|
|
|
||
|
|
auto strtrim(std::string_view str) noexcept -> std::string;
|
||
|
|
|
||
|
|
void str_replace(std::string& str, std::string_view from, std::string_view to) noexcept;
|
||
|
|
|
||
|
|
inline std::string const this_pid{ std::to_string(getpid()) };
|