LangScan is a program analyzer for source code search engine.

Main Characteristics:
  * Use source code-specific information
    - Function names, string, comments, etc.
  * Prity-printed source code views
  * Easy-to-use for both general users and administrators
  * Support multi-byte characters

 Supported Languages:
  * Brainfuck     * JavaScript
  * C             * Lua
  * C++           * Objective Caml
  * C#            * PHP
  * CSS           * Perl
  * D             * Python
  * Eiffel        * Ruby
  * Emacs Lisp    * Scheme
  * Io            * Shell Script
  * Java          * Plain Text

WWW: http://gonzui.sourceforge.net/langscan/