01: /*
02: * Copyright (c) 1998-2008 Caucho Technology -- all rights reserved
03: *
04: * This file is part of Resin(R) Open Source
05: *
06: * Each copy or derived work must preserve the copyright notice and this
07: * notice unmodified.
08: *
09: * Resin Open Source is free software; you can redistribute it and/or modify
10: * it under the terms of the GNU General Public License as published by
11: * the Free Software Foundation; either version 2 of the License, or
12: * (at your option) any later version.
13: *
14: * Resin Open Source is distributed in the hope that it will be useful,
15: * but WITHOUT ANY WARRANTY; without even the implied warranty of
16: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
17: * of NON-INFRINGEMENT. See the GNU General Public License for more
18: * details.
19: *
20: * You should have received a copy of the GNU General Public License
21: * along with Resin Open Source; if not, write to the
22: *
23: * Free Software Foundation, Inc.
24: * 59 Temple Place, Suite 330
25: * Boston, MA 02111-1307 USA
26: *
27: * @author Scott Ferguson
28: */
29:
30: package com.caucho.util;
31:
32: import java.util.Locale;
33:
34: /**
35: * Locale generator.
36: */
37: public class LocaleUtil {
38: public static Locale createLocale(String s) {
39: if (s == null)
40: return null;
41:
42: int len = s.length();
43: char ch = ' ';
44:
45: int i = 0;
46: for (; i < len
47: && ('a' <= (ch = s.charAt(i)) && ch <= 'z' || 'A' <= ch
48: && ch <= 'Z' || '0' <= ch && ch <= '9'); i++) {
49: }
50:
51: String language = s.substring(0, i);
52: String country = null;
53: String var = null;
54:
55: if (ch == '-' || ch == '_') {
56: int head = ++i;
57:
58: for (; i < len
59: && ('a' <= (ch = s.charAt(i)) && ch <= 'z'
60: || 'A' <= ch && ch <= 'Z' || '0' <= ch
61: && ch <= '9'); i++) {
62: }
63:
64: country = s.substring(head, i);
65: }
66:
67: if (ch == '-' || ch == '_') {
68: int head = ++i;
69:
70: for (; i < len
71: && ('a' <= (ch = s.charAt(i)) && ch <= 'z'
72: || 'A' <= ch && ch <= 'Z' || '0' <= ch
73: && ch <= '9'); i++) {
74: }
75:
76: var = s.substring(head, i);
77: }
78:
79: if (var != null)
80: return new Locale(language, country, var);
81: else if (country != null)
82: return new Locale(language, country);
83: else
84: return new Locale(language);
85: }
86: }
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