/*
* Copyright (c) 2005, 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.
*
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package com.sun.xml.internal.rngom.util;
public abstract class Utf16 {
// 110110XX XXXXXX 110111XX XXXXXX
static public boolean isSurrogate(char c) {
return (c & 0xF800) == 0xD800;
}
static public boolean isSurrogate1(char c) {
return (c & 0xFC00) == 0xD800;
}
static public boolean isSurrogate2(char c) {
return (c & 0xFC00) == 0xDC00;
}
static public int scalarValue(char c1, char c2) {
return (((c1 & 0x3FF) << 10) | (c2 & 0x3FF)) + 0x10000;
}
static public char surrogate1(int c) {
return (char)(((c - 0x10000) >> 10) | 0xD800);
}
static public char surrogate2(int c) {
return (char)(((c - 0x10000) & 0x3FF) | 0xDC00);
}
}