OpenGrok is a fast and usable source code search and cross reference engine. It helps you search, cross-reference, and navigate your source tree. It can understand various program file formats and version control histories like SCCS, RCS, CVS, or Subversion In other words, it lets you grok (profoundly understand) the source.
This release adds analyzer support for Tcl/Tk and SQL, and support for TeamWare repositories.
URL: OpenGrok at OpenSolaris.org