AntlrBridge.java 文件源码

public AntlrBridge(String input){
//      String inputFile = null;
//      if ( input.length()>0 ) inputFile = input;
//      InputStream is = input;
//      if ( inputFile!=null ) is = new FileInputStream(inputFile);
        ANTLRInputStream antlrInput = new ANTLRInputStream(input);
        SequenceAnalyzerLexer lexer = new SequenceAnalyzerLexer(antlrInput);
        CommonTokenStream tokens = new CommonTokenStream(lexer);
        SequenceAnalyzerParser parser = new SequenceAnalyzerParser(tokens);
        ParseTree tree = parser.prog(); // parse

        CommandObjectVisitor coVisitor = new CommandObjectVisitor();
        coVisitor.visit(tree);

        Stack<CommandObject> commandObjectStack = coVisitor.commandObjectStack;

        commandExecutor.executeStack(commandObjectStack);
    }