Source code search and browse tools

 GNU GLOBAL is a source code tag system that works the same way across
 diverse environments. Currently, it supports the following:
 .
   o command line, and the 'globash' query subshell.
   o vim plugin, and support for other vi clones.
   o less
   o emacs
   o web browser
 .
 Supported languages are C, C++, yacc and Java.
 You can locate a specified function in the source files and move
 there easily. It is especially useful for hacking large projects
 containing many subdirectories, many '#ifdef' and many main()
 functions, like X or kernel source.
 .
 Doxygen now supports using global as its source browser, with the
 USE_HTAGS option.