01: /**
02: * Copyright (c) 2000-2008 Liferay, Inc. All rights reserved.
03: *
04: * Permission is hereby granted, free of charge, to any person obtaining a copy
05: * of this software and associated documentation files (the "Software"), to deal
06: * in the Software without restriction, including without limitation the rights
07: * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
08: * copies of the Software, and to permit persons to whom the Software is
09: * furnished to do so, subject to the following conditions:
10: *
11: * The above copyright notice and this permission notice shall be included in
12: * all copies or substantial portions of the Software.
13: *
14: * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15: * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16: * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17: * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18: * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19: * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20: * SOFTWARE.
21: */package com.liferay.util.lucene;
22:
23: import com.liferay.portal.kernel.util.StringPool;
24: import com.liferay.portal.kernel.util.StringUtil;
25:
26: /**
27: * <a href="KeywordsUtil.java.html"><b><i>View Source</i></b></a>
28: *
29: * @author Brian Wing Shun Chan
30: * @author Mirco Tamburini
31: * @author Josiah Goh
32: *
33: */
34: public class KeywordsUtil {
35:
36: public static final String[] SPECIAL = new String[] { "+", "-",
37: "&&", "||", "!", "(", ")", "{", "}", "[", "]", "^", "\"",
38: "~", "*", "?", ":", "\\" };
39:
40: public static String escape(String text) {
41: for (int i = SPECIAL.length - 1; i >= 0; i--) {
42: text = StringUtil.replace(text, SPECIAL[i],
43: StringPool.BACK_SLASH + SPECIAL[i]);
44: }
45:
46: return text;
47: }
48:
49: public static String toFuzzy(String keywords) {
50: if (keywords == null) {
51: return null;
52: }
53:
54: if (!keywords.endsWith(StringPool.TILDE)) {
55: keywords = keywords + StringPool.TILDE;
56: }
57:
58: return keywords;
59: }
60:
61: public static String toWildcard(String keywords) {
62: if (keywords == null) {
63: return null;
64: }
65:
66: if (!keywords.endsWith(StringPool.STAR)) {
67: keywords = keywords + StringPool.STAR;
68: }
69:
70: return keywords;
71: }
72:
73: }
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