Class UnicodeEscapeProcessingProvider

java.lang.Object

com.github.javaparser.UnicodeEscapeProcessingProvider

All Implemented Interfaces:

Provider

public class UnicodeEscapeProcessingProvider
extends Object
implements Provider

Provider un-escaping unicode escape sequences in the input sequence.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final class	UnicodeEscapeProcessingProvider.LineCounter	Processor keeping track of the current line and column in a stream of incoming characters.
static final class	UnicodeEscapeProcessingProvider.PositionMapping	An algorithm mapping Position form two corresponding files.
private static final class	UnicodeEscapeProcessingProvider.PositionMappingBuilder

Field Summary

Fields

Modifier and Type	Field	Description
private boolean	_backslashSeen
private char[]	_data
private Provider	_input
private final UnicodeEscapeProcessingProvider.LineCounter	_inputLine
private int	_len	The number of characters in _data.
private final UnicodeEscapeProcessingProvider.PositionMappingBuilder	_mappingBuilder
private final UnicodeEscapeProcessingProvider.LineCounter	_outputLine
private int	_pos	The position in _data where to read the next source character from.
private static final char	BACKSLASH
private static final char	CR
private static final int	EOF
private static final char	LF

Constructor Summary

Constructors

Constructor	Description
UnicodeEscapeProcessingProvider(int bufferSize, Provider input)	Creates a UnicodeEscapeProcessingProvider.
UnicodeEscapeProcessingProvider(Provider input)	Creates a UnicodeEscapeProcessingProvider.

Method Summary

Modifier and Type	Method	Description
private int	backSlashSeen()
private int	clearBackSlashSeen(int next)
void	close()	Closes the stream and releases any system resources associated with it.
private static int	digit(int ch)
private int	fillBuffer()
UnicodeEscapeProcessingProvider.LineCounter	getInputCounter()	The UnicodeEscapeProcessingProvider.LineCounter of the input file.
UnicodeEscapeProcessingProvider.LineCounter	getOutputCounter()	The UnicodeEscapeProcessingProvider.LineCounter of the output file.
UnicodeEscapeProcessingProvider.PositionMapping	getPositionMapping()	The UnicodeEscapeProcessingProvider.PositionMapping being built during processing the file.
private boolean	isBufferEmpty()
private int	nextBufferedChar()	Retrieves the next un-escaped character from the buffered _input.
private int	nextInputChar()	Processes column/line information from the input file.
private int	nextOutputChar()	Produces the next un-escaped character to be written to the output.
private void	pushBack(int ch)
private void	pushBackUs(int cnt)
int	read(char[] buffer, int offset, int len)	Reads characters into an array
private int	readDigits(int uCnt, int next3)
private int	unicodeStartSeen()

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

LF

private static final char LF

See Also:

• Constant Field Values

CR

private static final char CR

See Also:

• Constant Field Values

BACKSLASH

private static final char BACKSLASH

See Also:

• Constant Field Values

EOF

private static final int EOF

See Also:

• Constant Field Values

_data

private char[] _data

_len

private int _len

The number of characters in _data.

_pos

private int _pos

The position in _data where to read the next source character from.

_backslashSeen

private boolean _backslashSeen

_inputLine

private final UnicodeEscapeProcessingProvider.LineCounter _inputLine

_outputLine

private final UnicodeEscapeProcessingProvider.LineCounter _outputLine

_mappingBuilder

private final UnicodeEscapeProcessingProvider.PositionMappingBuilder _mappingBuilder

_input

private Provider _input

Constructor Details

UnicodeEscapeProcessingProvider

public UnicodeEscapeProcessingProvider(Provider input)

Creates a UnicodeEscapeProcessingProvider.

UnicodeEscapeProcessingProvider

public UnicodeEscapeProcessingProvider(int bufferSize,
 Provider input)

Creates a UnicodeEscapeProcessingProvider.

Method Details

getInputCounter

public UnicodeEscapeProcessingProvider.LineCounter getInputCounter()

The UnicodeEscapeProcessingProvider.LineCounter of the input file.

getOutputCounter

public UnicodeEscapeProcessingProvider.LineCounter getOutputCounter()

The UnicodeEscapeProcessingProvider.LineCounter of the output file.

read

public int read(char[] buffer,
 int offset,
 int len)
         throws IOException

Description copied from interface: Provider

Reads characters into an array

Specified by:

read in interface Provider

Parameters:

buffer - Destination buffer

offset - Offset at which to start storing characters

len - The maximum possible number of characters to read

Returns:

The number of characters read, or -1 if all read

Throws:

IOException

close

public void close()
           throws IOException

Description copied from interface: Provider

Closes the stream and releases any system resources associated with it.

Specified by:

close in interface Provider

Throws:

IOException

nextOutputChar

private int nextOutputChar()
                    throws IOException

Produces the next un-escaped character to be written to the output.

Returns:

The next character or -1 if no more characters are available.

Throws:

IOException

clearBackSlashSeen

private int clearBackSlashSeen(int next)

backSlashSeen

private int backSlashSeen()
                   throws IOException

Throws:

IOException

unicodeStartSeen

private int unicodeStartSeen()
                      throws IOException

Throws:

IOException

readDigits

private int readDigits(int uCnt,
 int next3)
                throws IOException

Throws:

IOException

pushBackUs

private void pushBackUs(int cnt)

digit

private static int digit(int ch)

nextInputChar

private int nextInputChar()
                   throws IOException

Processes column/line information from the input file.

Returns:

The next character or -1 if no more input is available.

Throws:

IOException

nextBufferedChar

private int nextBufferedChar()
                      throws IOException

Retrieves the next un-escaped character from the buffered _input.

Returns:

The next character or -1 if no more input is available.

Throws:

IOException

isBufferEmpty

private boolean isBufferEmpty()

fillBuffer

private int fillBuffer()
                throws IOException

Throws:

IOException

pushBack

private void pushBack(int ch)

getPositionMapping

public UnicodeEscapeProcessingProvider.PositionMapping getPositionMapping()

The UnicodeEscapeProcessingProvider.PositionMapping being built during processing the file.