/*
* @(#)CharacterDataLatin1.java 1.5 06/10/10
*
* Copyright 1990-2008 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version
* 2 only, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License version 2 for more details (a copy is
* included at /legal/license.txt).
*
* You should have received a copy of the GNU General Public License
* version 2 along with this work; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
* Clara, CA 95054 or visit www.sun.com if you need additional
* information or have any questions.
*/
package java.lang;
/** The CharacterData class encapsulates the large tables found in
Java.lang.Character. */
class CharacterDataLatin1 {
/* The character properties are currently encoded into 32 bits in the following manner:
1 bit mirrored property
4 bits directionality property
9 bits signed offset used for converting case
1 bit if 1, adding the signed offset converts the character to lowercase
1 bit if 1, subtracting the signed offset converts the character to uppercase
1 bit if 1, this character has a titlecase equivalent (possibly itself)
3 bits 0 may not be part of an identifier
1 ignorable control; may continue a Unicode identifier or Java identifier
2 may continue a Java identifier but not a Unicode identifier (unused)
3 may continue a Unicode identifier or Java identifier
4 is a Java whitespace character
5 may start or continue a Java identifier;
may continue but not start a Unicode identifier (underscores)
6 may start or continue a Java identifier but not a Unicode identifier ($)
7 may start or continue a Unicode identifier or Java identifier
Thus:
5, 6, 7 may start a Java identifier
1, 2, 3, 5, 6, 7 may continue a Java identifier
7 may start a Unicode identifier
1, 3, 5, 7 may continue a Unicode identifier
1 is ignorable within an identifier
4 is Java whitespace
2 bits 0 this character has no numeric property
1 adding the digit offset to the character code and then
masking with 0x1F will produce the desired numeric value
2 this character has a "strange" numeric value
3 a Java supradecimal digit: adding the digit offset to the
character code, then masking with 0x1F, then adding 10
will produce the desired numeric value
5 bits digit offset
5 bits character type
The encoding of character properties is subject to change at any time.
*/
static int getProperties(char ch) {
return A[ch];
}
static int getType(char ch) {
return getProperties(ch) & 0x1F;
}
static boolean isLowerCase(char ch) {
return getType(ch) == Character.LOWERCASE_LETTER;
}
static boolean isUpperCase(char ch) {
return getType(ch) == Character.UPPERCASE_LETTER;
}
static boolean isTitleCase(char ch) {
return false;
}
static boolean isDigit(char ch) {
return getType(ch) == Character.DECIMAL_DIGIT_NUMBER;
}
static boolean isDefined(char ch) {
return getType(ch) != Character.UNASSIGNED;
}
static boolean isLetter(char ch) {
return (((((1 << Character.UPPERCASE_LETTER) |
(1 << Character.LOWERCASE_LETTER) |
(1 << Character.TITLECASE_LETTER) |
(1 << Character.MODIFIER_LETTER) |
(1 << Character.OTHER_LETTER)) >> getType(ch)) & 1) != 0);
}
static boolean isLetterOrDigit(char ch) {
return (((((1 << Character.UPPERCASE_LETTER) |
(1 << Character.LOWERCASE_LETTER) |
(1 << Character.TITLECASE_LETTER) |
(1 << Character.MODIFIER_LETTER) |
(1 << Character.OTHER_LETTER) |
(1 << Character.DECIMAL_DIGIT_NUMBER)) >> getType(ch)) & 1) != 0);
}
static boolean isSpaceChar(char ch) {
return (((((1 << Character.SPACE_SEPARATOR) |
(1 << Character.LINE_SEPARATOR) |
(1 << Character.PARAGRAPH_SEPARATOR))
>> getType(ch)) & 1) != 0);
}
static boolean isJavaIdentifierStart(char ch) {
return (getProperties(ch) & 0x00007000) >= 0x00005000;
}
static boolean isJavaIdentifierPart(char ch) {
return (getProperties(ch) & 0x00003000) != 0;
}
static boolean isUnicodeIdentifierStart(char ch) {
return (getProperties(ch) & 0x00007000) == 0x00007000;
}
static boolean isUnicodeIdentifierPart(char ch) {
return (getProperties(ch)& 0x00001000) != 0;
}
static boolean isIdentifierIgnorable(char ch) {
return (getProperties(ch) & 0x00007000) == 0x00001000;
}
static char toLowerCase(char ch) {
char mapChar = ch;
int val = getProperties(ch);
if (((val & 0x00020000) != 0) &&
((val & 0x07FC0000) != 0x07FC0000)) {
int offset = val << 5 >> (5+18);
mapChar = (char)(ch + offset);
}
return mapChar;
}
static char toUpperCase(char ch) {
char mapChar = ch;
int val = getProperties(ch);
if ((val & 0x00010000) != 0) {
if ((val & 0x07FC0000) != 0x07FC0000) {
int offset = val << 5 >> (5+18);
mapChar = (char)(ch - offset);
} else if (ch == '\u00B5') {
mapChar = '\u039C';
}
}
return mapChar;
}
static char toTitleCase(char ch) {
return toUpperCase(ch);
}
static int digit(char ch, int radix) {
int value = -1;
if (radix >= Character.MIN_RADIX && radix <= Character.MAX_RADIX) {
int val = getProperties(ch);
int kind = val & 0x1F;
if (kind == Character.DECIMAL_DIGIT_NUMBER) {
value = ch + ((val & 0x3E0) >> 5) & 0x1F;
}
else if ((val & 0xC00) == 0x00000C00) {
// Java supradecimal digit
value = (ch + ((val & 0x3E0) >> 5) & 0x1F) + 10;
}
}
return (value < radix) ? value : -1;
}
static int getNumericValue(char ch) {
int val = getProperties(ch);
int retval = -1;
switch (val & 0xC00) {
default: // cannot occur
case (0x00000000): // not numeric
retval = -1;
break;
case (0x00000400): // simple numeric
retval = ch + ((val & 0x3E0) >> 5) & 0x1F;
break;
case (0x00000800) : // "strange" numeric
retval = -2;
break;
case (0x00000C00): // Java supradecimal
retval = (ch + ((val & 0x3E0) >> 5) & 0x1F) + 10;
break;
}
return retval;
}
static boolean isWhitespace(char ch) {
return (getProperties(ch) & 0x00007000) == 0x00004000;
}
static byte getDirectionality(char ch) {
int val = getProperties(ch);
byte directionality = (byte)((val & 0x78000000) >> 27);
if (directionality == 0xF ) {
directionality = -1;
}
return directionality;
}
static boolean isMirrored(char ch) {
return (getProperties(ch) & 0x80000000) != 0;
}
static char toUpperCaseEx(char ch) {
char mapChar = ch;
int val = getProperties(ch);
if ((val & 0x00010000) != 0) {
if ((val & 0x07FC0000) != 0x07FC0000) {
int offset = val << 5 >> (5+18);
mapChar = (char)(ch - offset);
}
else {
switch(ch) {
// map overflow characters
case '\u00B5' : mapChar = '\u039C'; break;
default : mapChar = Character.CHAR_ERROR; break;
}
}
}
return mapChar;
}
// The following tables and code generated using:
// java GenerateCharacter -template /.../CharacterDataLatin1.java.template -spec /.../UnicodeData.txt -specialcasing /.../SpecialCasing.txt -o /.../CharacterDataLatin1.java -string -usecharforbyte -latin1 8
// The A table has 256 entries for a total of 1024 bytes.
static final int A[] = new int[256];
/*
** static final String A_DATA =
** "\u4800\u100F\u4800\u100F\u4800\u100F\u4800\u100F\u4800\u100F\u4800\u100F\u4800"+
** "\u100F\u4800\u100F\u4800\u100F\u5800\u400F\u5000\u400F\u5800\u400F\u6000\u400F"+
** "\u5000\u400F\u4800\u100F\u4800\u100F\u4800\u100F\u4800\u100F\u4800\u100F\u4800"+
** "\u100F\u4800\u100F\u4800\u100F\u4800\u100F\u4800\u100F\u4800\u100F\u4800\u100F"+
** "\u4800\u100F\u4800\u100F\u5000\u400F\u5000\u400F\u5000\u400F\u5800\u400F\u6000"+
** "\u400C\u6800\030\u6800\030\u2800\030\u2800\u601A\u2800\030\u6800\030\u6800"+
** "\030\uE800\025\uE800\026\u6800\030\u2800\031\u3800\030\u2800\024\u3800\030"+
** "\u2000\030\u1800\u3609\u1800\u3609\u1800\u3609\u1800\u3609\u1800\u3609\u1800"+
** "\u3609\u1800\u3609\u1800\u3609\u1800\u3609\u1800\u3609\u3800\030\u6800\030"+
** "\uE800\031\u6800\031\uE800\031\u6800\030\u6800\030\202\u7FE1\202\u7FE1\202"+
** "\u7FE1\202\u7FE1\202\u7FE1\202\u7FE1\202\u7FE1\202\u7FE1\202\u7FE1\202\u7FE1"+
** "\202\u7FE1\202\u7FE1\202\u7FE1\202\u7FE1\202\u7FE1\202\u7FE1\202\u7FE1\202"+
** "\u7FE1\202\u7FE1\202\u7FE1\202\u7FE1\202\u7FE1\202\u7FE1\202\u7FE1\202\u7FE1"+
** "\202\u7FE1\uE800\025\u6800\030\uE800\026\u6800\033\u6800\u5017\u6800\033\201"+
** "\u7FE2\201\u7FE2\201\u7FE2\201\u7FE2\201\u7FE2\201\u7FE2\201\u7FE2\201\u7FE2"+
** "\201\u7FE2\201\u7FE2\201\u7FE2\201\u7FE2\201\u7FE2\201\u7FE2\201\u7FE2\201"+
** "\u7FE2\201\u7FE2\201\u7FE2\201\u7FE2\201\u7FE2\201\u7FE2\201\u7FE2\201\u7FE2"+
** "\201\u7FE2\201\u7FE2\201\u7FE2\uE800\025\u6800\031\uE800\026\u6800\031\u4800"+
** "\u100F\u4800\u100F\u4800\u100F\u4800\u100F\u4800\u100F\u4800\u100F\u5000\u100F"+
** "\u4800\u100F\u4800\u100F\u4800\u100F\u4800\u100F\u4800\u100F\u4800\u100F\u4800"+
** "\u100F\u4800\u100F\u4800\u100F\u4800\u100F\u4800\u100F\u4800\u100F\u4800\u100F"+
** "\u4800\u100F\u4800\u100F\u4800\u100F\u4800\u100F\u4800\u100F\u4800\u100F\u4800"+
** "\u100F\u4800\u100F\u4800\u100F\u4800\u100F\u4800\u100F\u4800\u100F\u4800\u100F"+
** "\u3800\014\u6800\030\u2800\u601A\u2800\u601A\u2800\u601A\u2800\u601A\u6800"+
** "\034\u6800\034\u6800\033\u6800\034\000\u7002\uE800\035\u6800\031\u6800\024"+
** "\u6800\034\u6800\033\u2800\034\u2800\031\u1800\u060B\u1800\u060B\u6800\033"+
** "\u07FD\u7002\u6800\034\u6800\030\u6800\033\u1800\u050B\000\u7002\uE800\036"+
** "\u6800\u080B\u6800\u080B\u6800\u080B\u6800\030\202\u7001\202\u7001\202\u7001"+
** "\202\u7001\202\u7001\202\u7001\202\u7001\202\u7001\202\u7001\202\u7001\202"+
** "\u7001\202\u7001\202\u7001\202\u7001\202\u7001\202\u7001\202\u7001\202\u7001"+
** "\202\u7001\202\u7001\202\u7001\202\u7001\202\u7001\u6800\031\202\u7001\202"+
** "\u7001\202\u7001\202\u7001\202\u7001\202\u7001\202\u7001\u07FD\u7002\201\u7002"+
** "\201\u7002\201\u7002\201\u7002\201\u7002\201\u7002\201\u7002\201\u7002\201"+
** "\u7002\201\u7002\201\u7002\201\u7002\201\u7002\201\u7002\201\u7002\201\u7002"+
** "\201\u7002\201\u7002\201\u7002\201\u7002\201\u7002\201\u7002\201\u7002\u6800"+
** "\031\201\u7002\201\u7002\201\u7002\201\u7002\201\u7002\201\u7002\201\u7002"+
** "\u061D\u7002";
**/
// In all, the character property tables require 1024 bytes.
static {
/*
** { // THIS CODE WAS AUTOMATICALLY CREATED BY GenerateCharacter:
** char[] data = A_DATA.toCharArray();
** assert (data.length == (256 * 2));
** int i = 0, j = 0;
** while (i < (256 * 2)) {
** int entry = data[i++] << 16;
** A[j++] = entry | data[i++];
** }
** }
*/
setArrays();
}
static native void setArrays();
}