1 /*

2 * Copyright (C) 2006 Mikhail A. Kryshen

3 *

4 * This program is free software; you can redistribute it and/or modify

5 * it under the terms of the GNU General Public License as published by

6 * the Free Software Foundation; either version 2 of the License, or

7 * (at your option) any later version.

8 *

9 * This program is distributed in the hope that it will be useful,

10 * but WITHOUT ANY WARRANTY; without even the implied warranty of

11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

12 * GNU General Public License for more details.

13 *

14 * You should have received a copy of the GNU General Public License

15 * along with this program; if not, write to the Free Software

16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

17 *

18 * $Id: TemplateReader.java,v 1.5 2006/12/14 14:39:22 mikhail Exp $

19 */

20

21 package kryshen.tema;

22

23 import java.io.Reader;

24 import java.io.LineNumberReader;

25 import java.io.FilterReader;

26 import java.io.IOException;

27

28 /**

29 * Reader for TEMA templates. Stores data source name (commonly

30 * filename) and tracks line numbers for error reporting.

31 *

32 * @author Mikhail A. Kryshen

33 */

34 public class TemplateReader extends FilterReader {

35 private String source = null;

36

37 private LineNumberReader lnReader = null;

38 private TemplateReader parentReader = null;

39

40 public TemplateReader(LineNumberReader in, String source) {

41 super(in);

42 this.lnReader = in;

43 this.source = source;

44 }

45

46 public TemplateReader(Reader in, TemplateReader parent) {

47 super(in);

48 this.source = source;

49 }

50

51 public String getSource() {

52 if (source != null)

53 return source;

54

55 return parentReader.getSource();

56 }

57

58 public int getLineNumber() {

59 if (lnReader != null)

60 return lnReader.getLineNumber();

61

62 return parentReader.getLineNumber();

63 }

64 }