Compiler Construction with ANTLR and Java

Compiler Construction with ANTLR and Java

By Gary L. Schaps

Dr. Dobb's Journal March 1999

// ... parse the file ...
public static void parseFile(InputStream s, String fname) 
    throws Exception {  
    try {
        // Create a scanner that reads from the input stream
        KPLLexer lexer = new KPLLexer(s);
        // Create a parser that reads from the scanner
        KPLParser parser = new KPLParser(lexer);
        parser.setCurrentFile(fname);
        // start parsing at the compilationUnit rule
        parser.compilationUnit();
        ...

Example 2: Starting the parser.