Development of a new system for programming language education

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This research includes several subthemes.(1)A new program editing system.The system consists of several editors. A fundamental tree editor is implemented to edit tree structure data which enables to build a tree structure data, save it into a file and load from saved files. The second editor enables to make a program in tree-structured form guided by an abstract syntax of the language. The third editor is implemented to make a program in a text-form from the program in tree-structured form guided by a local rewriting rules attached to each abstract syntax rule. This editor as a study tool allows students to compare the concrete syntax between several languages and to test their own code generation rules. These tools can be used to try new language features. Although we can not yet test the system in the field and evaluate it in real usages, our early experiences of trial usage show the system could be useful in a program language class. In possible chances, we would like to use the system in one of our class.(2)A program interpreting systemWe intended to implement a system which can simulate the program build by the above-mentioned tree-editor. This system is to demonstrate the computational states visually with user-oriented focusing. We have several new ideas, but the implementation is not so easy. At present, the system is under construction.(3)Remote programmingOur team consists of two groups at Tottori and Osaka. We have implemented a remote pair programming system based on text-base shared windows. We are testing the system in several different situations and gathering data for evaluation. [1]Summing up, in this study, we get several ideas and prototype systems, with which we can extend our research further.[1] H.Nagataki, E.Kitamura, T.Nagai and N.Tokura : Development of remote pair-programming system SATORI and its application to programming education. Annual Conference of JSEE,2004.7.30.