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1 package ppg.lex;
2
3 import java.io.*;
4 import ppg.parse.*;
5
6 public class LexTest
7 {
8 private static final String  HEADER = "ppg [lexertest]: ";
9
10 public LexTest() {}
11
12 public static void main(String args[]) {
13 FileInputStream fileInput;
14 String filename = null;
15 try {
16 filename = args[0];
17 fileInput = new FileInputStream(filename);
18 }
19 catch (FileNotFoundException e) {
20 System.out.println("Error: "+filename+" is not found.");
21 return;
22 }
23 catch (ArrayIndexOutOfBoundsException e) {
24 System.out.println(HEADER+"Error: No file name given.");
25 return;
26 }
27
28 File f = new File(filename);
29 String simpleName = f.getName();
30
31 Lexer lex = new Lexer(fileInput, simpleName);
32 Token t = null;
33 try {
34 while (true) {
35 t=lex.getToken();
36 t.unparse(System.out);
37 if (t.getCode() == Constant.EOF) {
38 break;
39 }
40 System.out.println();
41 }
42 fileInput.close();
43 } catch (Error e) {
44 System.out.println(e.getMessage());
45 System.exit(1);
46 } catch (Exception e) {
47 System.out.println(e.getMessage());
48 System.exit(1);
49 }
50 }
51 }
52 |
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