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Core/File: Add DecodeOpenMode

This commit is contained in:
Lynix 2023-12-25 19:51:19 +01:00
parent 4065fbfb1a
commit 7cd1b32e95
3 changed files with 38 additions and 27 deletions
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3
include/Nazara/Core/File.hpp
View File

@ -11,7 +11,7 @@
#include <Nazara/Core/ByteArray.hpp>
#include <Nazara/Core/Stream.hpp>
#include <NazaraUtils/Endianness.hpp>
#include <NazaraUtils/MovablePtr.hpp>
#include <NazaraUtils/Result.hpp>
#include <ctime>
#include <filesystem>
#include <fstream>
@ -56,6 +56,7 @@ namespace Nz
static inline ByteArray ComputeHash(HashType hash, const std::filesystem::path& filePath);
static inline ByteArray ComputeHash(AbstractHash& hash, const std::filesystem::path& filePath);
static /*constexpr*/ Result<OpenModeFlags, std::string> DecodeOpenMode(std::string_view openModeStr);
static std::optional<std::vector<UInt8>> ReadWhole(const std::filesystem::path& path);
static bool WriteWhole(const std::filesystem::path& path, const void* data, std::size_t size);

32
include/Nazara/Core/File.inl
View File

@ -3,6 +3,7 @@
// For conditions of distribution and use, see copyright notice in Config.hpp
#include <Nazara/Core/Algorithm.hpp>
#include <Nazara/Core/Format.hpp>
#include <Nazara/Core/Debug.hpp>
namespace Nz
@ -33,6 +34,37 @@ namespace Nz
return Nz::ComputeHash(hash, File(filePath));
}
inline /*constexpr*/ Result<OpenModeFlags, std::string> File::DecodeOpenMode(std::string_view openModeStr)
{
OpenModeFlags openModes = 0;
if (openModeStr.find('r') != std::string_view::npos)
{
openModes |= OpenMode::Read;
if (openModeStr.find('+') != std::string_view::npos)
openModes |= OpenMode_ReadWrite | OpenMode::MustExist;
}
else if (openModeStr.find('w') != std::string_view::npos)
{
openModes |= OpenMode::Write | OpenMode::Truncate;
if (openModeStr.find('+') != std::string_view::npos)
openModes |= OpenMode::Read;
}
else if (openModeStr.find('a') != std::string_view::npos)
{
openModes |= OpenMode::Write | OpenMode::Append;
if (openModeStr.find('+') != std::string_view::npos)
openModes |= OpenMode::Read;
}
else
return Err(Format("unhandled or invalid openmode {0}", openModeStr));
if (openModeStr.find('b') == std::string_view::npos)
openModes |= OpenMode::Text;
return openModes;
}
inline bool File::CheckFileOpening()
{
if (m_openMode.Test(OpenMode::Defer))

30
plugins/Assimp/CustomStream.cpp
View File

@ -84,38 +84,16 @@ aiFile* StreamOpener(aiFileIO* fileIO, const char* filePath, const char* openMod
{
ErrorFlags errFlags({}, ~ErrorMode::ThrowException);
///TODO: Move to File::DecodeOpenMode
OpenModeFlags openModeEnum = 0;
Result<OpenModeFlags, std::string> openModes = File::DecodeOpenMode(openMode);
if (std::strchr(openMode, 'r'))
if (openModes.IsErr())
{
openModeEnum |= OpenMode::Read;
if (std::strchr(openMode, '+'))
openModeEnum |= OpenMode_ReadWrite | OpenMode::MustExist;
}
else if (std::strchr(openMode, 'w'))
{
openModeEnum |= OpenMode::Write | OpenMode::Truncate;
if (std::strchr(openMode, '+'))
openModeEnum |= OpenMode::Read;
}
else if (std::strchr(openMode, 'a'))
{
openModeEnum |= OpenMode::Write | OpenMode::Append;
if (std::strchr(openMode, '+'))
openModeEnum |= OpenMode::Read;
}
else
{
NazaraErrorFmt("unhandled/invalid openmode: {0} for file {1}", openMode, filePath);
NazaraErrorFmt("{0} for file {1}", openModes.GetError(), filePath);
return nullptr;
}
if (!std::strchr(openMode, 'b'))
openModeEnum |= OpenMode::Text;
std::unique_ptr<File> file = std::make_unique<File>();
if (!file->Open(filePath, openModeEnum))
if (!file->Open(filePath, openModes.GetValue()))
return nullptr;
stream = reinterpret_cast<char*>(file.release());