Class UnicodeUnescapeReader

java.lang.Object

java.io.Reader

java.io.FilterReader

org.codehaus.janino.UnicodeUnescapeReader

All Implemented Interfaces:

Closeable, AutoCloseable, Readable

public class UnicodeUnescapeReader
extends FilterReader

A FilterReader that unescapes the "Unicode Escapes" as described in JLS7 3.10.6.

Notice that it is possible to formulate invalid escape sequences, e.g. "\u123g" ("g" is not a valid hex character). This is handled by throwing a RuntimeException-derived UnicodeUnescapeException.

Field Summary

Fields

Modifier and Type	Field	Description
private boolean	oddPrecedingBackslashes
private int	unreadChar

Fields inherited from class FilterReader

in

Fields inherited from class Reader

lock

Constructor Summary

Constructors

Constructor	Description
UnicodeUnescapeReader(Reader in)

Method Summary

Modifier and Type	Method	Description
static void	main(String[] args)	Simple unit testing.
int	read()	Overrides FilterReader.read().
int	read(char[] cbuf, int off, int len)	Overrides FilterReader.read(char[], int, int).

Methods inherited from class FilterReader

close, mark, markSupported, ready, reset, skip

Methods inherited from class Reader

nullReader, of, read, read, readAllAsString, readAllLines, transferTo

Methods inherited from class Object

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

Field Details

unreadChar

private int unreadChar

oddPrecedingBackslashes

private boolean oddPrecedingBackslashes

Constructor Details

UnicodeUnescapeReader

public UnicodeUnescapeReader(Reader in)

Method Details

read

public int read()
         throws IOException

Overrides FilterReader.read().

Overrides:

read in class FilterReader

Throws:

UnicodeUnescapeException - Invalid escape sequence encountered

IOException

read

public int read(@Nullable
 char[] cbuf,
 int off,
 int len)
         throws IOException

Overrides FilterReader.read(char[], int, int).

Overrides:

read in class FilterReader

Throws:

IOException

main

public static void main(String[] args)
                 throws IOException

Simple unit testing.

Throws:

IOException