Interface CharData

public static final String[] BLOCKS

The mapping of character blocks to their location in DATA. Each entry has been adjusted so that the 16-bit sum with the desired character gives the actual index into DATA.

public static final String[] DATA

Information about each character. The low order 5 bits form the character type, the next bit is a flag for non-breaking spaces, and the next bit is a flag for mirrored directionality. The high order 9 bits form the offset into the attribute tables. Note that this limits the number of unique character attributes to 512, which is not a problem as of Unicode version 4.0.0, but may soon become one.

public static final String[] DIRECTION

This is the attribute table for computing the directionality class of a character, as well as a marker of characters with a multi-character capitalization. The direction is taken by performing a signed shift right by 2 (where a result of -1 means an unknown direction, such as for undefined characters). The lower 2 bits form a count of the additional characters that will be added to a String when performing multi-character uppercase expansion. This count is also used, along with the offset in UPPER_SPECIAL, to determine how much of UPPER_EXPAND to use when performing the case conversion. Note that this information is stored as an unsigned char since this is a String literal.

public static final int[] LARGENUMS

The array containing the numeric values that are too large to be stored as chars in NUM_VALUE. NUM_VALUE in this case will contain a negative integer N such that LARGENUMS[-N - 3] contains the correct numeric value.

public static final String[] LOWER

This is the attribute table for computing the lowercase representation of a character. The value is the signed difference between the character and its lowercase version. Note that this is stored as an unsigned char since this is a String literal.

public static final String[] NUM_VALUE

This is the attribute table for computing the numeric value of a character. The value is -1 if Unicode does not define a value, -2 if the value is not a positive integer, otherwise it is the value. Note that this is a signed value, but stored as an unsigned char since this is a String literal.

public static final int[] SHIFT

The character shift amount to look up the block offset. In other words, (char) (BLOCKS.value[ch >> SHIFT[p]] + ch) is the index where ch is described in DATA if ch is in Unicode plane p. Note that p is simply the integer division of ch and 0x10000.

public static final String SOURCE

The Unicode definition file that was parsed to build this database.

Field Value:

"../doc/unicode/UnicodeData-4.0.0.txt"

public static final String TITLE

This is the listing of titlecase special cases (all other characters can use UPPER to determine their titlecase). The listing is a sorted sequence of character pairs; converting the first character of the pair to titlecase produces the second character.

Field Value:

"\u01c4\u01c5\u01c5\u01c5\u01c6\u01c5\u01c7\u01c8\u01c8\u01c8\u01c9\u01c8\u01ca\u01cb\u01cb\u01cb\u01cc\u01cb\u01f1\u01f2\u01f2\u01f2\u01f3\u01f2"

public static final String[] UPPER

This is the attribute table for computing the single-character uppercase representation of a character. The value is the signed difference between the character and its uppercase version. Note that this is stored as an unsigned char since this is a String literal. When capitalizing a String, you must first check if a multi-character uppercase sequence exists before using this character.

public static final String UPPER_EXPAND

This is the listing of special case multi-character uppercase sequences. Characters listed in UPPER_SPECIAL index into this table to find their uppercase expansion. Remember that you must also perform special-casing on two single-character sequences in the Turkish locale, which are not covered here in CharData.

Field Value:

"SS\u02bcNJ\u030c\u0399\u0308\u0301\u03a5\u0308\u0301\u0535\u0552H\u0331T\u0308W\u030aY\u030aA\u02be\u03a5\u0313\u03a5\u0313\u0300\u03a5\u0313\u0301\u03a5\u0313\u0342\u1f08\u0399\u1f09\u0399\u1f0a\u0399\u1f0b\u0399\u1f0c\u0399\u1f0d\u0399\u1f0e\u0399\u1f0f\u0399\u1f08\u0399\u1f09\u0399\u1f0a\u0399\u1f0b\u0399\u1f0c\u0399\u1f0d\u0399\u1f0e\u0399\u1f0f\u0399\u1f28\u0399\u1f29\u0399\u1f2a\u0399\u1f2b\u0399\u1f2c\u0399\u1f2d\u0399\u1f2e\u0399\u1f2f\u0399\u1f28\u0399\u1f29\u0399\u1f2a\u0399\u1f2b\u0399\u1f2c\u0399\u1f2d\u0399\u1f2e\u0399\u1f2f\u0399\u1f68\u0399\u1f69\u0399\u1f6a\u0399\u1f6b\u0399\u1f6c\u0399\u1f6d\u0399\u1f6e\u0399\u1f6f\u0399\u1f68\u0399\u1f69\u0399\u1f6a\u0399\u1f6b\u0399\u1f6c\u0399\u1f6d\u0399\u1f6e\u0399\u1f6f\u0399\u1fba\u0399\u0391\u0399\u0386\u0399\u0391\u0342\u0391\u0342\u0399\u0391\u0399\u1fca\u0399\u0397\u0399\u0389\u0399\u0397\u0342\u0397\u0342\u0399\u0397\u0399\u0399\u0308\u0300\u0399\u0308\u0301\u0399\u0342\u0399\u0308\u0342\u03a5\u0308\u0300\u03a5\u0308\u0301\u03a1\u0313\u03a5\u0342\u03a5\u0308\u0342\u1ffa\u0399\u03a9\u0399\u038f\u0399\u03a9\u0342\u03a9\u0342\u0399\u03a9\u0399FFFIFLFFIFFLSTST\u0544\u0546\u0544\u0535\u0544\u053b\u054e\u0546\u0544\u053d"

public static final String UPPER_SPECIAL

This is a listing of characters with multi-character uppercase sequences. A character appears in this list exactly when it has a non-zero entry in the low-order 2-bit field of DIRECTION. The listing is a sorted sequence of pairs (hence a binary search on the even elements is an efficient way to lookup a character). The first element of a pair is the character with the expansion, and the second is the index into UPPER_EXPAND where the expansion begins. Use the 2-bit field of DIRECTION to determine where the expansion ends.

Field Value:

"\u00df\000\u0149\002\u01f0\004\u0390\006\u03b0\011\u0587\014\u1e96\016\u1e97\020\u1e98\022\u1e99\024\u1e9a\026\u1f50\030\u1f52\032\u1f54\035\u1f56 \u1f80#\u1f81%\u1f82'\u1f83)\u1f84+\u1f85-\u1f86/\u1f871\u1f883\u1f895\u1f8a7\u1f8b9\u1f8c;\u1f8d=\u1f8e?\u1f8fA\u1f90C\u1f91E\u1f92G\u1f93I\u1f94K\u1f95M\u1f96O\u1f97Q\u1f98S\u1f99U\u1f9aW\u1f9bY\u1f9c[\u1f9d]\u1f9e_\u1f9fa\u1fa0c\u1fa1e\u1fa2g\u1fa3i\u1fa4k\u1fa5m\u1fa6o\u1fa7q\u1fa8s\u1fa9u\u1faaw\u1faby\u1fac{\u1fad}\u1fae\u007f\u1faf\u0081\u1fb2\u0083\u1fb3\u0085\u1fb4\u0087\u1fb6\u0089\u1fb7\u008b\u1fbc\u008e\u1fc2\u0090\u1fc3\u0092\u1fc4\u0094\u1fc6\u0096\u1fc7\u0098\u1fcc\u009b\u1fd2\u009d\u1fd3\u00a0\u1fd6\u00a3\u1fd7\u00a5\u1fe2\u00a8\u1fe3\u00ab\u1fe4\u00ae\u1fe6\u00b0\u1fe7\u00b2\u1ff2\u00b5\u1ff3\u00b7\u1ff4\u00b9\u1ff6\u00bb\u1ff7\u00bd\u1ffc\u00c0\ufb00\u00c2\ufb01\u00c4\ufb02\u00c6\ufb03\u00c8\ufb04\u00cb\ufb05\u00ce\ufb06\u00d0\ufb13\u00d2\ufb14\u00d4\ufb15\u00d6\ufb16\u00d8\ufb17\u00da"