libcore.util

Class CharsetUtils

java.lang.Object

libcore.util.CharsetUtils

public final class CharsetUtils
extends Object

Various special-case charset conversions (for performance).

Method Summary

Modifier and Type	Method and Description
static void	asciiBytesToChars(byte[] bytes, int offset, int length, char[] chars) Decodes the given US-ASCII bytes into the given char[].
static void	isoLatin1BytesToChars(byte[] bytes, int offset, int length, char[] chars) Decodes the given ISO-8859-1 bytes into the given char[].
static byte[]	toAsciiBytes(String s, int offset, int length) Returns a new byte array containing the bytes corresponding to the characters in the given string, encoded in US-ASCII.
static byte[]	toBigEndianUtf16Bytes(String s, int offset, int length) Returns a new byte array containing the bytes corresponding to the characters in the given string, encoded in UTF-16BE.
static byte[]	toIsoLatin1Bytes(String s, int offset, int length) Returns a new byte array containing the bytes corresponding to the characters in the given string, encoded in ISO-8859-1.
static byte[]	toUtf8Bytes(String s, int offset, int length) Returns a new byte array containing the bytes corresponding to the characters in the given string, encoded in UTF-8.

Methods inherited from class java.lang.Object

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

Method Detail

toAsciiBytes

public static byte[] toAsciiBytes(String s,
                                  int offset,
                                  int length)

Returns a new byte array containing the bytes corresponding to the characters in the given string, encoded in US-ASCII. Unrepresentable characters are replaced by (byte) '?'.

toIsoLatin1Bytes

public static byte[] toIsoLatin1Bytes(String s,
                                      int offset,
                                      int length)

Returns a new byte array containing the bytes corresponding to the characters in the given string, encoded in ISO-8859-1. Unrepresentable characters are replaced by (byte) '?'.

toUtf8Bytes

public static byte[] toUtf8Bytes(String s,
                                 int offset,
                                 int length)

Returns a new byte array containing the bytes corresponding to the characters in the given string, encoded in UTF-8. All characters are representable in UTF-8.

toBigEndianUtf16Bytes

public static byte[] toBigEndianUtf16Bytes(String s,
                                           int offset,
                                           int length)

Returns a new byte array containing the bytes corresponding to the characters in the given string, encoded in UTF-16BE. All characters are representable in UTF-16BE.

asciiBytesToChars

public static void asciiBytesToChars(byte[] bytes,
                                     int offset,
                                     int length,
                                     char[] chars)

Decodes the given US-ASCII bytes into the given char[]. Equivalent to but faster than: for (int i = 0; i < count; ++i) { char ch = (char) (data[start++] & 0xff); value[i] = (ch <= 0x7f) ? ch : REPLACEMENT_CHAR; }

isoLatin1BytesToChars

public static void isoLatin1BytesToChars(byte[] bytes,
                                         int offset,
                                         int length,
                                         char[] chars)

Decodes the given ISO-8859-1 bytes into the given char[]. Equivalent to but faster than: for (int i = 0; i < count; ++i) { value[i] = (char) (data[start++] & 0xff); }