1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
#include <fstream>
#include <iomanip>
#include <iostream>
#include <string>
#include <stdlib.h>
#include "Parser.h"
#include "EG4DumpVisitor.h"
#include "ParseException.h"
#include "MyErrorHandler.h"
#include "ParserTokenManager.h"
using namespace std;
using namespace EG4;
JAVACC_STRING_TYPE ReadFileFully(char *file_name) {
// JAVACC_STRING_TYPE s;
//#if WIDE_CHAR
// wifstream in;
//#else
// ifstream in;
//#endif
// in.open(file_name, ios::in);
// // Very inefficient.
// while (!in.eof()) {
// s += in.get();
// }
// return s;
return "(1 + 2) * (a + b);\n";
}
int main(int argc, char** argv) {
cout << "Reading from standard input..." << endl;
JAVACC_STRING_TYPE s = ReadFileFully(argv[1]);
try {
CharStream *stream = new CharStream(s.c_str(), s.size() - 1, 1, 1);
ParserTokenManager *scanner = new ParserTokenManager(stream);
Parser parser(scanner);
parser.setErrorHandler(new MyErrorHandler());
ASTStart* n = parser.Start();
EG4DumpVisitor eg4dv;
eg4dv.visit(n, NULL);
cout << "Thank you." << endl;
} catch (const ParseException& e) {
}
return 0;
}
|
