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1 package ppg.parse;
2
3 import java.io.*;
4 import ppg.*;
5 import ppg.lex.*;
6 import ppg.spec.*;
7 import ppg.util.*;
8
9 public class ParseTest
10 {
11 private static final String  HEADER = "ppg [parsetest]: ";
12
13 private ParseTest() {}
14
15 public static void main(String args[]) {
16 FileInputStream fileInput;
17
18 String filename = null;
19 try {
20 filename = args[0];
21 fileInput = new FileInputStream(filename);
22 }
23 catch (FileNotFoundException e) {
24 System.out.println("Error: "+filename+" is not found.");
25 return;
26 }
27 catch (ArrayIndexOutOfBoundsException e) {
28 System.out.println(HEADER+"Error: No file name given.");
29 return;
30 }
31
32 File f = new File(filename);
33 String simpleName = f.getName();
34
35 Lexer lex = new Lexer(fileInput, simpleName);
36
37 Parser parser = new Parser(filename, lex);
38 try {
39 parser.parse();
40 } catch (Exception e) {
41 System.out.println(HEADER+"Exception: "+e.getMessage());
42 return;
43 }
44 Spec spec = (Spec)parser.getProgramNode();
45
46 CodeWriter cw = new CodeWriter(System.out, 72);
47 try {
48 spec.unparse(cw);
49 cw.flush();
50 fileInput.close();
51 } catch (IOException e) {
52 System.out.println(HEADER+"exception: "+e.getMessage());
53 return;
54 }
55 }
56
57 }
58 |
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