idutils

The classic Berkeley gid/lid tools for looking up variables in code

`mkid' is a simple, fast, high-capacity, language-independent identifier database tool. Actually, the term `identifier' is too limiting--`mkid' stores tokens, be they program identifiers of any form, literal numbers, or words of human-readable text. Database queries can be issued from the command-line, or from within emacs, serving as an augmented tags facility.