Research on rule definition and engine for general text processing

The demands of text processing are frequent and various in computer applications. If developed specific program for different requirements, the program would be complicated and hard to reuse. The paper defines rules to describe the logic of text processing, and designs an engine to parse and execute the rules, with which we simplify the text processing from programming to writing rules. Also, the paper compares the describable solution with the major text editors, to show the expandability and extra functionality of text processing. After describing the principle of rule definition and the implementation of engine, an experiment of extracting web topic text is given to verify the rationality of the rule and the efficiency of the engine.