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1
11 package org.eclipse.jdt.internal.ui.refactoring.nls.search;
12
13 import java.io.BufferedReader  ;
14 import java.io.IOException ;
15 import java.io.InputStream ;
16 import java.io.InputStreamReader ;
17 import java.io.Reader ;
18
19
20 class LineReader extends Object {
21 protected static final int LF= '\n';
22 protected static final int CR= '\r';
23
24 private BufferedReader fReader;
25
26 protected int fPushbackChar;
27 protected boolean fPushback;
28
29 public LineReader(InputStream in, String encoding) throws IOException {
30 this(new InputStreamReader (in, encoding));
31 }
32
33 public LineReader(Reader reader) {
34 fPushback= false;
35 fReader= new BufferedReader (reader);
36 }
37
38 public int readLine(StringBuffer sb) throws IOException {
39 int ch= -1;
40 sb.setLength(0);
41 if (fPushback) {
42 ch= fPushbackChar;
43 fPushback= false;
44 } else
45 ch= fReader.read();
46 while (ch >= 0) {
47 if (ch == LF)
48 return 1;
49 if (ch == CR) {
50 ch= fReader.read();
51 if (ch == LF)
52 return 2;
53 else {
54 fPushbackChar= ch;
55 fPushback= true;
56 return 1;
57 }
58 }
59 sb.append((char) ch);
60 ch= fReader.read();
61 }
62 return -1;
63 }
64
65 public void close() throws IOException {
66 fReader.close();
67 }
68 }
69 |
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