source: trunk/yao/share/antlr-2.7.7/examples/cpp/includeFile/Main.cpp @ 1

#include <iostream>

#include "Main.hpp"
#include "PLexer.hpp"
#include "PParser.hpp"

ANTLR_USING_NAMESPACE(std)
ANTLR_USING_NAMESPACE(antlr)

// Define a selector that can handle nested include files.
// These variables are public so the parser/lexer can see them.
TokenStreamSelector selector;
PParser* parser;
PLexer* mainLexer;

int main( int, char** )
{
        try {
                // attach java lexer to the input stream,
                mainLexer = new PLexer(cin);

                // notify selector about starting lexer; name for convenience
                selector.addInputStream(mainLexer, "main");
                selector.select("main"); // start with main P lexer

                // Create parser attached to selector
                parser = new PParser(selector);

                // Parse the input language: P
                parser->setFilename("<stdin>");
                parser->startRule();
        }
        catch( ANTLRException& e )
        {
                cerr << "exception: " << e.getMessage() << endl;
                return -1;
        }
        catch( exception& e )
        {
                cerr << "exception: " << e.what() << endl;
                return -1;
        }
        return 0;
}