Duckstation/src/common/string_util.h
2020-03-06 21:55:27 +10:00

65 lines
1.5 KiB
C++

#pragma once
#include "types.h"
#include <cstdarg>
#include <cstddef>
#include <cstring>
#include <optional>
#include <string>
#if defined(__has_include) && __has_include(<charconv>)
#include <charconv>
#else
#include <sstream>
#endif
namespace StringUtil {
/// Constructs a std::string from a format string.
std::string StdStringFromFormat(const char* format, ...);
std::string StdStringFromFormatV(const char* format, std::va_list ap);
/// Checks if a wildcard matches a search string.
bool WildcardMatch(const char* subject, const char* mask, bool case_sensitive = true);
/// Safe version of strlcpy.
std::size_t Strlcpy(char* dst, const char* src, std::size_t size);
/// Platform-independent strcasecmp
static inline int Strcasecmp(const char* s1, const char* s2)
{
#ifdef _MSC_VER
return _stricmp(s1, s2);
#else
return strcasecmp(s1, s2);
#endif
}
/// Wrapper arond std::from_chars
template<typename T>
static inline std::optional<T> FromChars(std::string_view str)
{
T value;
#if defined(__has_include) && __has_include(<charconv>)
const std::from_chars_result result = std::from_chars(str.data(), str.data() + str.length(), value);
if (result.ec != std::errc())
return std::nullopt;
#else
std::string temp(str);
std::istringstream ss(temp);
ss >> value;
if (ss.fail())
return std::nullopt;
#endif
return value;
}
/// starts_with from C++20
ALWAYS_INLINE static bool StartsWith(std::string_view str, const char* prefix)
{
return (str.compare(0, std::strlen(prefix), prefix) == 0);
}
} // namespace StringUtil