CodeQuery is a tool for indexing and then querying or searching C, C++, Java, Python, Ruby, and Go source code. It builds upon the databases of cscope and ctags, which are processed by the cqmakedb tool to generate a CodeQuery database file. This can be viewed and queried with a GUI tool. The features include auto-completion of search terms and visualization of function call graphs and class inheritance. The following queries can be made: Symbol, Function or macro, Class or struct, Functions cal
LXR is a source code indexer and cross-referencer which generates HTML output linking to declarations and identifier uses within code. It's general-purpose and supports C, C++, Java, Python, Ruby, Perl, COBOL and other languages. It also works well with larger code bases, provides a search function, and understands versioned sources.