An incremental parser is a device which is able to perform syntax analysis in an incremental way, avoiding complete reparsing of a program after each modification and intelligent editor means an editor with a syntactic checker.
The concept of incremental parsing and an incremental parsing algorithm for LR grammar and the improved version of incremental parsing algorithm which is suitable for implementation of it is discussed.
The method and procedure of making an intelligent editor from a normal text editor by use of an incremental parsing is presented.
An actual experiment based on an implementation on microcomputer system (CROMEMCO) has been performed.