UnicodeCharacterSet

java.lang.Object
- net.sf.saxon.charcode.UnicodeCharacterSet

All Implemented Interfaces:

CharacterSet
```
public final class UnicodeCharacterSet
extends java.lang.Object
implements CharacterSet
```
This class defines properties of the Unicode character set

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static int`	`decodeUTF8(byte[] in, int used)`	Decode a UTF8 character
`static UnicodeCharacterSet`	`getInstance()`	Get the singular instance of this class
`static int`	`getUTF8Encoding(char in, char in2, byte[] out)`	Static method to generate the UTF-8 representation of a Unicode character
`boolean`	`inCharset(int c)`	Determine if a character is present in the character set

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - getInstance
```
public static UnicodeCharacterSet getInstance()
```
    Get the singular instance of this class
    
    Returns:
    
    the singular instance of this classthe singular instance of this class
  - inCharset
```
public boolean inCharset(int c)
```
    Description copied from interface: CharacterSet
    
    Determine if a character is present in the character set
    
    Specified by:
    
    inCharset in interface CharacterSet
  - getUTF8Encoding
```
public static int getUTF8Encoding(char in,
                                  char in2,
                                  byte[] out)
```
    Static method to generate the UTF-8 representation of a Unicode character
    
    Parameters:
    
    in - the Unicode character, or the high half of a surrogate pair
    
    in2 - the low half of a surrogate pair (ignored unless the first argument is in the range for a surrogate pair)
    
    out - an array of at least 4 bytes to hold the UTF-8 representation.
    
    Returns:
    
    the number of bytes in the UTF-8 representation
  - decodeUTF8
```
public static int decodeUTF8(byte[] in,
                             int used)
                      throws java.lang.IllegalArgumentException
```
    Decode a UTF8 character
    
    Parameters:
    
    in - array of bytes representing a single UTF-8 encoded character
    
    used - number of bytes in the array that are actually used
    
    Returns:
    
    the Unicode codepoint of this character
    
    Throws:
    
    java.lang.IllegalArgumentException - if the byte sequence is not a valid UTF-8 representation

Class UnicodeCharacterSet

Method Summary

Methods inherited from class java.lang.Object

Method Detail

getInstance

inCharset

getUTF8Encoding

decodeUTF8