Development of a Web-Based Learning Support System for Operator-Precedence Parsers

It is considered to be important to understand the notions of shift and reduce in the operator precedence parsing method taught in the “compiler” class. The notions of shift and reduce are also used in the LR parsing method taught later in the course. This paper reports a Web-based learning support system for operator precedence parsing method which shows animation with stacks and trees generated by the JSAV library. This paper reports its structure and features, and then discusses future work.