Package gnu.inet.encoding

Class Punycode

java.lang.Object

gnu.inet.encoding.Punycode

public class Punycode
extends Object

This class offers static methods for encoding/decoding strings using the Punycode algorithm.

• RFC3492 Punycode

Note that this implementation only supports 16-bit Unicode code points.

Constructor Summary

Constructors

Constructor	Description
Punycode()

Method Summary

Modifier and Type	Method	Description
static int	adapt(int delta, int numpoints, boolean first)
static int	codepoint2digit(int c)
static String	decode(String input)	Decode a punycoded string.
static int	digit2codepoint(int d)
static String	encode(String input)	Punycodes a unicode string.
static boolean	isBasic(char c)

Methods inherited from class java.lang.Object

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

Constructor Detail

Punycode

public Punycode()

Method Detail

adapt

public static final int adapt(int delta,
                              int numpoints,
                              boolean first)

codepoint2digit

public static final int codepoint2digit(int c)
                                 throws PunycodeException

Throws:

PunycodeException

decode

public static String decode(String input)
                     throws PunycodeException

Decode a punycoded string.

Parameters:

input - Punycode string

Returns:

Unicode string.

Throws:

PunycodeException

digit2codepoint

public static final int digit2codepoint(int d)
                                 throws PunycodeException

Throws:

PunycodeException

encode

public static String encode(String input)
                     throws PunycodeException

Punycodes a unicode string.

Parameters:

input - Unicode string.

Returns:

Punycoded string.

Throws:

PunycodeException

isBasic

public static final boolean isBasic(char c)