public class LineColumnReader extends BufferedReader
LineColumnReader
is an extension to BufferedReader
that keeps track of the line and column information of where the cursor is.Constructor and Description |
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LineColumnReader(Reader reader)
Constructor wrapping a
Reader
(FileReader , FileReader , InputStreamReader , etc.) |
Modifier and Type | Method and Description |
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void |
close()
Closes the stream and releases any system resources associated with it.
|
long |
getColumn() |
long |
getColumnMark() |
long |
getLine() |
long |
getLineMark() |
void |
mark(int readAheadLimit)
Marks the present position in the stream.
|
int |
read()
Reads a single character.
|
int |
read(char[] chars)
Reads characters into an array.
|
int |
read(char[] chars,
int startOffset,
int length)
Reads characters into a portion of an array.
|
int |
read(CharBuffer buffer)
Not implemented.
|
String |
readLine()
Reads a line of text.
|
void |
reset()
Resets the stream to the most recent mark.
|
void |
setColumn(long column) |
void |
setColumnMark(long columnMark) |
void |
setLine(long line) |
void |
setLineMark(long lineMark) |
long |
skip(long toSkip)
Skips characters.
|
markSupported, ready
public LineColumnReader(Reader reader)
Reader
(FileReader
, FileReader
, InputStreamReader
, etc.)reader
- the reader to wrappublic void mark(int readAheadLimit) throws IOException
mark
in class BufferedReader
readAheadLimit
- Limit on the number of characters that may be read while still preserving the mark.
An attempt to reset the stream after reading characters up to this limit or beyond may fail.
A limit value larger than the size of the input buffer will cause a new buffer to be allocated whose size is no smaller than limit.
Therefore large values should be used with care.IOException
public void reset() throws IOException
reset
in class BufferedReader
IOException
public int read() throws IOException
read
in class BufferedReader
IOException
public int read(char[] chars, int startOffset, int length) throws IOException
read
in class BufferedReader
chars
- Destination array of charstartOffset
- Offset at which to start storing characterslength
- Maximum number of characters to readIOException
public String readLine() throws IOException
readLine
in class BufferedReader
IOException
public long skip(long toSkip) throws IOException
skip
in class BufferedReader
toSkip
- the number of characters to skipIOException
public int read(char[] chars) throws IOException
read
in class Reader
chars
- Destination bufferIOException
public int read(CharBuffer buffer)
read
in interface Readable
read
in class Reader
buffer
- Destination bufferUnsupportedOperationException
- as the method is not implementedpublic void close() throws IOException
close
in interface Closeable
close
in interface AutoCloseable
close
in class BufferedReader
IOException
public long getColumn()
public void setColumn(long column)
public long getColumnMark()
public void setColumnMark(long columnMark)
public long getLine()
public void setLine(long line)
public long getLineMark()
public void setLineMark(long lineMark)