Source : Free On-Line Dictionary of Computing

language-sensitive editor
     
        An editor that is aware of the syntactic, semantic and in some
        cases the structural rules of a specific programming language
        and provides a framework for the user to enter {source code}.
        Programs or changes to previously stored programs are
        incrementally parsed into an {abstract syntax tree} and
        automatically checked for correctness.
     
        (1995-02-15)