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/*
* Copyright (c) 2003, 2006, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code 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. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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 in the LICENSE file that
* accompanied this code).
*
* 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.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 CharacterData0E extends CharacterData {
/* 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.
*/
int getProperties(int ch) {
char offset = (char)ch;
int props = A[Y[X[offset>>5]|((offset>>1)&0xF)]|(offset&0x1)];
return props;
}
int getType(int ch) {
int props = getProperties(ch);
return (props & 0x1F);
}
boolean isJavaIdentifierStart(int ch) {
int props = getProperties(ch);
return ((props & 0x00007000) >= 0x00005000);
}
boolean isJavaIdentifierPart(int ch) {
int props = getProperties(ch);
return ((props & 0x00003000) != 0);
}
boolean isUnicodeIdentifierStart(int ch) {
int props = getProperties(ch);
return ((props & 0x00007000) == 0x00007000);
}
boolean isUnicodeIdentifierPart(int ch) {
int props = getProperties(ch);
return ((props & 0x00001000) != 0);
}
boolean isIdentifierIgnorable(int ch) {
int props = getProperties(ch);
return ((props & 0x00007000) == 0x00001000);
}
int toLowerCase(int ch) {
int mapChar = ch;
int val = getProperties(ch);
if ((val & 0x00020000) != 0) {
int offset = val << 5 >> (5+18);
mapChar = ch + offset;
}
return mapChar;
}
int toUpperCase(int ch) {
int mapChar = ch;
int val = getProperties(ch);
if ((val & 0x00010000) != 0) {
int offset = val << 5 >> (5+18);
mapChar = ch - offset;
}
return mapChar;
}
int toTitleCase(int ch) {
int mapChar = ch;
int val = getProperties(ch);
if ((val & 0x00008000) != 0) {
// There is a titlecase equivalent. Perform further checks:
if ((val & 0x00010000) == 0) {
// The character does not have an uppercase equivalent, so it must
// already be uppercase; so add 1 to get the titlecase form.
mapChar = ch + 1;
}
else if ((val & 0x00020000) == 0) {
// The character does not have a lowercase equivalent, so it must
// already be lowercase; so subtract 1 to get the titlecase form.
mapChar = ch - 1;
}
// else {
// The character has both an uppercase equivalent and a lowercase
// equivalent, so it must itself be a titlecase form; return it.
// return ch;
//}
}
else if ((val & 0x00010000) != 0) {
// This character has no titlecase equivalent but it does have an
// uppercase equivalent, so use that (subtract the signed case offset).
mapChar = toUpperCase(ch);
}
return mapChar;
}
int digit(int 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;
}
int getNumericValue(int 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;
}
boolean isWhitespace(int ch) {
int props = getProperties(ch);
return ((props & 0x00007000) == 0x00004000);
}
byte getDirectionality(int ch) {
int val = getProperties(ch);
byte directionality = (byte)((val & 0x78000000) >> 27);
if (directionality == 0xF ) {
directionality = Character.DIRECTIONALITY_UNDEFINED;
}
return directionality;
}
boolean isMirrored(int ch) {
int props = getProperties(ch);
return ((props & 0x80000000) != 0);
}
static final CharacterData instance = new CharacterData0E();
private CharacterData0E() {};
// The following tables and code generated using:
// The X table has 2048 entries for a total of 4096 bytes.
static final char X[] = (
"\000\020\020\020\040\040\040\040\060\060\060\060\060\060\060\100\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040"+
"\040\040\040\040\040\040\040\040\040\040\040\040\040\040\040").toCharArray();
// The Y table has 80 entries for a total of 160 bytes.
static final char Y[] = (
"\000\002\002\002\002\002\002\002\002\002\002\002\002\002\002\002\004\004\004"+
"\004\004\004\004\004\004\004\004\004\004\004\004\004\002\002\002\002\002\002"+
"\002\002\002\002\002\002\002\002\002\002\006\006\006\006\006\006\006\006\006"+
"\006\006\006\006\006\006\006\006\006\006\006\006\006\006\006\002\002\002\002"+
"\002\002\002\002").toCharArray();
// The A table has 8 entries for a total of 32 bytes.
static final int A[] = new int[8];
static final String A_DATA =
"\u7800\000\u4800\u1010\u7800\000\u7800\000\u4800\u1010\u4800\u1010\u4000\u3006"+
"\u4000\u3006";
// In all, the character property tables require 4288 bytes.
static {
{ // THIS CODE WAS AUTOMATICALLY CREATED BY GenerateCharacter:
char[] data = A_DATA.toCharArray();
assert (data.length == (8 * 2));
int i = 0, j = 0;
while (i < (8 * 2)) {
int entry = data[i++] << 16;
A[j++] = entry | data[i++];
}
}
}
}
|
