at.dms.util
Class UnicodeReader

java.lang.Object
  java.io.Reader
      java.io.FilterReader
          at.dms.util.UnicodeReader

All Implemented Interfaces:

Closeable, Readable

public class UnicodeReader
extends FilterReader

A character-stream reader that transforms unicode escape sequences into characters according to the Java Language Specification - Second Edition. See JLS 3.2 : Lexical Translations, Step 1 See JLS 3.3 : Unicode Escapes NOTE: we use a lookahead character instead of a pushback reader because for example the sequence "\\u..." would be read as "\" and "\ u . . ."

Field Summary

Fields inherited from class java.io.FilterReader

in

Fields inherited from class java.io.Reader

lock

Constructor Summary

UnicodeReader(Reader in)
Creates a new unicode reader.

Method Summary

boolean	markSupported() Tell whether this stream supports the mark() operation.
int	read() Reads a single character.
int	read(char[] buf, int off, int len) Reads characters into a portion of an array.

Methods inherited from class java.io.FilterReader

close, mark, ready, reset, skip

Methods inherited from class java.io.Reader

read, read

Methods inherited from class java.lang.Object

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

Constructor Detail

UnicodeReader

public UnicodeReader(Reader in)

Creates a new unicode reader.

Parameters:

in - the reader from which characters will be read

Method Detail

read

public int read()
         throws IOException

Reads a single character.

Overrides:

read in class FilterReader

Returns:

the character read, or -1 if the end of the stream has been reached

Throws:

IOException - if an I/O error occurs

read

public int read(char[] buf,
                int off,
                int len)
         throws IOException

Reads characters into a portion of an array.

Overrides:

read in class FilterReader

Parameters:

buf - destination buffer

off - offset at which to start writing characters

len - maximum number of characters to read

Returns:

the number of characters read, or -1 if the end of the stream has been reached

Throws:

IOException - if an I/O error occurs

markSupported

public boolean markSupported()

Tell whether this stream supports the mark() operation.

Overrides:

markSupported in class FilterReader

Returns:

false: this stream does not support mark()