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jdk.internal.icu.impl

public final Class Punycode

Class Inheritance

extends Object

java.lang.Object
jdk.internal.icu.impl.Punycode

Imports

java.text.ParseException, jdk.internal.icu.lang.UCharacter, jdk.internal.icu.text.UTF16

Ported code from ICU punycode.c

Author: ram

Field Summary

Modifier and Type	Field and Description
private static final int	BASE
private static final int	CAPITAL_A
private static final int	CAPITAL_Z
private static final int	DAMP
private static final int	DECODE_MAX_CHARS
private static final int	DELIMITER
private static final int	ENCODE_MAX_CODE_UNITS
private static final int	HYPHEN
private static final int	INITIAL_BIAS
private static final int	INITIAL_N
private static final int	MAX_CP_COUNT
private static final int	NINE
private static final int	SKEW
private static final int	SMALL_A
private static final int	SMALL_Z
private static final int	TMAX
private static final int	TMIN
private static final int	ZERO

Constructor Summary

Access	Constructor and Description
public	Punycode()

Method Summary

Modifier and Type	Method and Description
private static int	adaptBias(int delta, int length, boolean firstTime)
private static char	asciiCaseMap(char b, boolean uppercase)
public static StringBuffer	decode(StringBuffer src, boolean[] caseFlags) Converts Punycode to Unicode.
private static final int	decodeDigit(int cp) Returns: the numeric value of a basic code point (for use in representing integers) in the range 0 to BASE-1, or a negative value if cp is invalid.
private static char	digitToBasic(int digit, boolean uppercase) digitToBasic() returns the basic code point whose value (when used for representing integers) is d, which must be in the range 0 to BASE-1.
public static StringBuffer	encode(StringBuffer src, boolean[] caseFlags) Converts Unicode to Punycode.
private static boolean	isBasic(int ch)
private static boolean	isBasicUpperCase(int ch)
private static boolean	isSurrogate(int ch)

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

BASE	back to summary
private static final int BASE

CAPITAL_A	back to summary
private static final int CAPITAL_A

CAPITAL_Z	back to summary
private static final int CAPITAL_Z

DAMP	back to summary
private static final int DAMP

DECODE_MAX_CHARS	back to summary
private static final int DECODE_MAX_CHARS

DELIMITER	back to summary
private static final int DELIMITER

ENCODE_MAX_CODE_UNITS	back to summary
private static final int ENCODE_MAX_CODE_UNITS

HYPHEN	back to summary
private static final int HYPHEN

INITIAL_BIAS	back to summary
private static final int INITIAL_BIAS

INITIAL_N	back to summary
private static final int INITIAL_N

MAX_CP_COUNT	back to summary
private static final int MAX_CP_COUNT

NINE	back to summary
private static final int NINE

SKEW	back to summary
private static final int SKEW

SMALL_A	back to summary
private static final int SMALL_A

SMALL_Z	back to summary
private static final int SMALL_Z

TMAX	back to summary
private static final int TMAX

TMIN	back to summary
private static final int TMIN

ZERO	back to summary
private static final int ZERO

Constructor Detail

Punycode	back to summary
public Punycode()

Method Detail

adaptBias	back to summary
private static int adaptBias(int delta, int length, boolean firstTime)

asciiCaseMap	back to summary
private static char asciiCaseMap(char b, boolean uppercase)

decode	back to summary
public static StringBuffer decode(StringBuffer src, boolean[] caseFlags) throws ParseException Converts Punycode to Unicode. The Unicode string will be at most as long as the Punycode string.

decodeDigit	back to summary
private static final int decodeDigit(int cp) Returns:int the numeric value of a basic code point (for use in representing integers) in the range 0 to BASE-1, or a negative value if cp is invalid.

digitToBasic	back to summary
private static char digitToBasic(int digit, boolean uppercase) digitToBasic() returns the basic code point whose value (when used for representing integers) is d, which must be in the range 0 to BASE-1. The lowercase form is used unless the uppercase flag is nonzero, in which case the uppercase form is used.

encode	back to summary
public static StringBuffer encode(StringBuffer src, boolean[] caseFlags) throws ParseException Converts Unicode to Punycode. The input string must not contain single, unpaired surrogates. The output will be represented as an array of ASCII code points.

isBasic	back to summary
private static boolean isBasic(int ch)

isBasicUpperCase	back to summary
private static boolean isBasicUpperCase(int ch)

isSurrogate	back to summary
private static boolean isSurrogate(int ch)