01: /* Copyright (c) 2001-2005, The HSQL Development Group
02: * All rights reserved.
03: *
04: * Redistribution and use in source and binary forms, with or without
05: * modification, are permitted provided that the following conditions are met:
06: *
07: * Redistributions of source code must retain the above copyright notice, this
08: * list of conditions and the following disclaimer.
09: *
10: * Redistributions in binary form must reproduce the above copyright notice,
11: * this list of conditions and the following disclaimer in the documentation
12: * and/or other materials provided with the distribution.
13: *
14: * Neither the name of the HSQL Development Group nor the names of its
15: * contributors may be used to endorse or promote products derived from this
16: * software without specific prior written permission.
17: *
18: * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
19: * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21: * ARE DISCLAIMED. IN NO EVENT SHALL HSQL DEVELOPMENT GROUP, HSQLDB.ORG,
22: * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
23: * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
24: * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
25: * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
26: * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
28: * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29: */
30:
31: package org.hsqldb.rowio;
32:
33: import org.hsqldb.lib.StringConverter;
34:
35: /**
36: * This class quotes strings only if they contain the quote character or
37: * the separator for the field. The quote character is doubled.
38: *
39: * @author sqlbob@users (RMP)
40: * @version 1.8.0
41: * @since 1.7.0
42: */
43: public class RowOutputTextQuoted extends RowOutputText {
44:
45: public RowOutputTextQuoted(String fieldSep, String varSep,
46: String longvarSep, boolean allQuoted, String encoding) {
47: super (fieldSep, varSep, longvarSep, allQuoted, encoding);
48: }
49:
50: protected String checkConvertString(String s, String sep) {
51:
52: if (allQuoted || s.length() == 0 || s.indexOf('\"') != -1
53: || (sep.length() > 0 && s.indexOf(sep) != -1)
54: || hasUnprintable(s)) {
55: s = StringConverter.toQuotedString(s, '\"', true);
56: }
57:
58: return s;
59: }
60:
61: private boolean hasUnprintable(String s) {
62:
63: for (int i = 0, len = s.length(); i < len; i++) {
64: if (Character.isISOControl(s.charAt(i))) {
65: return true;
66: }
67: }
68:
69: return false;
70: }
71: }
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