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/*
* Copyright (C) 2004-2011
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package com.sun.tools.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);
}
}