Main.cpp
上传用户:afrynkmhm
上传日期:2007-01-06
资源大小:1262k
文件大小:2k
- #include <iostream>
- #include <fstream>
- #include "LexTokenStream.hpp"
- #include "JavaRecognizer.hpp"
- #include "JavaTreeParser.hpp"
- ANTLR_USING_NAMESPACE(std)
- ANTLR_USING_NAMESPACE(antlr)
- static void parseFile(const string& f);
- static void doTreeAction(const string& f, RefAST t);
- int main(int argc,char* argv[])
- {
- // Use a try/catch block for parser exceptions
- try {
- // if we have at least one command-line argument
- if (argc > 1 ) {
- cerr << "Parsing..." << endl;
- // for each file specified on the command line
- for(int i=1; i< argc;i++) {
- cerr << " " << argv[i] << endl;
- parseFile(argv[i]);
- } }
- else
- cerr << "Usage: " << argv[0]
- << " <file name(s)>" << endl;
- }
- catch(exception& e) {
- cerr << "exception: " << e.what() << endl;
- // e.printStackTrace(System.err); // so we can get stack trace
- }
- }
- // Here's where we do the real work...
- static void parseFile(const string& f)
- {
- try {
- // ifstream s(f.c_str());
- FILE* fp=fopen(f.c_str(),"r");
- // Create a scanner that reads from the input stream
- LexTokenStream lexer(fp);
- // Create a parser that reads from the scanner
- JavaRecognizer parser(lexer);
- // start parsing at the compilationUnit rule
- parser.compilationUnit();
- fclose(fp);
-
- // do something with the tree
- doTreeAction(f, parser.getAST());
- }
- catch (exception& e) {
- cerr << "parser exception: " << e.what() << endl;
- // e.printStackTrace(); // so we can get stack trace
- }
- }
-
- static void doTreeAction(const string& f, RefAST t)
- {
- if ( t==nullAST ) return;
- JavaTreeParser tparse;
- try {
- tparse.compilationUnit(t);
- // System.out.println("successful walk of result AST for "+f);
- }
- catch (RecognitionException& e) {
- cerr << e.getMessage() << endl;
- // e.printStackTrace();
- }
- }