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SafeBufferedReader.java
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58 lines (51 loc) · 1.33 KB
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import java.io.*;
public class SafeBufferedReader extends BufferedReader {
public SafeBufferedReader(Reader in) {
super(in);
}
/* public SafeBufferedReader(Reader in, int bufferSize) {
super(in, bufferSize);
}*/
private boolean lookingForLineFeed = false;
@Override
public int read() throws IOException {
int c = super.read();
if (c == '\n') {
if (lookingForLineFeed) {
lookingForLineFeed = false;
return super.read();
} else {
return c;
}
} else if (c == '\r') {
lookingForLineFeed = true;
return c;
} else {
lookingForLineFeed = false;
return c;
}
}
public String readLine() throws IOException {
StringBuilder sb = new StringBuilder("");
while (true) {
int c = super.read();
if (c == -1) { // end of stream
if (sb.length() == 0) return null;
return sb.toString();
} else if (c == '\n') {
if (lookingForLineFeed) {
lookingForLineFeed = false;
continue;
} else {
return sb.toString();
}
} else if (c == '\r') {
lookingForLineFeed = true;
return sb.toString();
} else {
lookingForLineFeed = false;
sb.append((char) c);
}
}
}
}