Automatic generation of LR(1) grammatical analyzer

An automatic generation of LR(1) grammatical analyzer was proposed. It can verify whether an input grammar is the LR(1) grammar which can generate the LR(1) parsing table automatically. And it also can analyze any input string,then decide whether it's the input grammar's legal sentence.The software which this paper based on can be used not only in demonstrating for teaching, but also in automatic constructing of LR(1) grammatical analyzer which will be used in compiler.