是否有 Windows 复合文件的开源替代方案?
我正在尝试将几个文件保存到一个容器文件中.这些文件可以稍后修改，这意味着容器可能必须扩大.用户应该只将此容器视为文件系统中的单个文件.该应用程序是用 C++ 编写并在 Windows 上运行，但文件也应该可以移植到其他平台.
I'm trying to save a couple of files to a container file. The files can be modified later which means the container might have to be enlarged. The user should only see this container as a single file in the file system. The application is written in C++ and running on Windows, but the files should be portable to other platforms as well.
对容器格式的要求是:
1. 大小:允许大于 4GB 的文件.
2. 可移植性:在其他平台上打开容器文件应该是可行的.
3. 性能:当改变容器内的文件时，只有代表该特定文件的块"可以改变.特别是，可能不会完全重写该文件.
4. 结构:它应该提供一个目录结构，允许构建文件和目录的层次结构.
The requirements for the container format are:
1. Size: Allow files bigger than 4GB.
2. Portability: It should be feasible to open the container files on other platforms.
3. Performance: When changing a file inside the container, only the "chunks" that represent that specific file may be changed. Especially, there may not be a complete rewrite of that file.
4. Structure: It should provide a directory structure that allows to build a hierarchy of files and directories.
如果省略要求 1.) 和 2.) 复合文件(如 Word 和 Excel 使用的)，则非常适合.
When leaving out requirement 1.) and 2.) compound files (like used by Word and Excel) are a good fit.
当然，可以设计一个满足所有要求的 API，但我想知道是否已经有一些开源解决方案可以解决这个问题?
Of course, it's possible to design an API that fulfills all the requirements, but I wonder if there is already some open-source solution that tackles the very problem?
有什么建议吗?
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