1/*
2 * Copyright (c) 1997, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24/**/
25
26import java.io.*;
27
28
29public class CharGenerator {
30
31    private IntGenerator r;
32    int min = 0, max = 0xffff;
33
34    public CharGenerator(IntGenerator r) {
35        this.r = r;
36    }
37
38    public CharGenerator(IntGenerator r, int min, int max) {
39        this.r = r;
40        this.min = min;
41        this.max = max;
42    }
43
44    public char next() {
45        char c;
46        do
47            c = (char) (r.next(max - min) + min);
48        while ((c == '\r') || (c == '\n')
49               || ((c >= 0xd800) && (c <= 0xdfff))
50               || (c == 0xfffe));
51        return c;
52    }
53}
54