This is a library for working with (language-agnostic) control- and data-flow graphs.
Although it doesn't (yet) look like much, the long-term goal of this project is to provide a language-agnostic data format for describing control-flow graphs (including callgraphs) and data-flow graphs as an intermediate representation between language-facing tools like LLVM and user-facing tools like Cytoscape, Dot and (maybe someday) a better cscope.