Subversion's modular design (covered in “分层的库设计”一节) and the availability of
language bindings (as described in “使用 C 和 C++ 以外的语言”一节) make it a likely
candidate for use as an extension or backend to other pieces of
software. For a listing of many third-party tools that are using
Subversion functionality under-the-hood, check out the Links page on the
Subversion website (http://subversion.tigris.org/project_links.html).