检查文件名是有效的 Windows 名称
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Check file name is valid windows name
提问by user152508
I wanna check if my string is valid windows file path. I was searching around and it seems that there is no reliable method to do that. Also I checked boost filesystem library , and no obvious function exist to do this check , maybe something like is_valid_windows_name
我想检查我的字符串是否是有效的 Windows 文件路径。我四处寻找，似乎没有可靠的方法可以做到这一点。我还检查了boost文件系统库，没有明显的函数来做这个检查，也许像is_valid_windows_name这样的东西
回答by M. Williams
回答by codymanix
I do not believe there is a standard c++ api for that.
我不相信有一个标准的 c++ api。
Note that the Windows API allows more filenames than the Windows Shell (The filenames the user is allowed to use in windws explorer).
请注意，Windows API 允许的文件名多于 Windows Shell（允许用户在 windws 资源管理器中使用的文件名）。
You should have a look at the windows shell api.
你应该看看windows shell api。
Another possibility is to use trial and error, this way you are truly independend of the current filesystem.
另一种可能性是使用反复试验，这样您就真正独立于当前文件系统。
The easiest way is to disallow
最简单的方法是禁止
\ / < > | " : ? *
\ / < > | “：？*
and you should be fine.
你应该没事的。
回答by Vladimir Nikulin
Yes, there is a boost function that does what you want. Take a look at boost::filesystem::windows_name(...). You will need to include boost/filesystem/path.hpp as well as link against the correct (version- and architecture-specific) libboost_system and libboost_filesystem libraries since path is not a header-only lib.
是的，有一个增强功能可以满足您的需求。看看 boost::filesystem::windows_name(...)。您将需要包含 boost/filesystem/path.hpp 以及针对正确（特定于版本和体系结构）的 libboost_system 和 libboost_filesystem 库的链接，因为路径不是仅包含头文件的库。
回答by klaus triendl
It's a pity even the newest C++17 filesystem library doesn't have a function to verify file names.
遗憾的是，即使是最新的 C++17 文件系统库也没有验证文件名的功能。
You can use the Windows-specific Shell Lightweight Utility functionPathFileExistsor the Windows APIGetFileAttributesand check the last error code specifically for ERROR_INVALID_NAME.
您可以使用 Windows 特定的Shell Lightweight Utility 函数PathFileExists或Windows APIGetFileAttributes并检查专门针对ERROR_INVALID_NAME.
I think it's kind of a misuse (because there really should be a dedicated function for it) but serves the purpose.
我认为这是一种误用（因为确实应该有一个专门的功能）但可以达到目的。
