Syntax-directed editors can perform syntax analysis during program editing. This capability allows programmmers to correct syntax errors in a much more efficient way. Because of this, syntax-directed editors have become an integral component in current integrated development environments. This paper describes a tool that is designed to facilitate the construction of syntax-directed editors. This tool consists of two components: a generator for incremental parsers and a simple application program interface that facilitates the integration of incremental parsers and editors. The application program interface is based on a simple editing model that can be applied in most editors.