Implementation of Syntax Analyzer by using JavaCC

A language compiler is one of the most crucialtools for the system development. Java CompilerCompiler (JavaCC) [tm] is the most popular parsergenerator for use with Java [tm] applications. Fora given a context free grammar, it generates arecursive decent parser written in Java. A recursivedescent parser defines a subroutine for eachnonterminal in the grammar. Each subroutine isresponsible for recognizing a sequence of terminalsymbols produced by its nonterminal, and forremoving that sequence of terminal symbols fromthe input sequence. It reads a grammarspecification and converts it to a Java program. Itcan on any computer platform with a Java VirtualMachine. In this paper, we analyze and describehow to build a parser by applying JavaCC. We useLL (1) grammar rules, Left to Right scanning usingone lookahead token. The proposed system isimplemented by Java Programming Language