source: NonGTP/Xerces/xercesc/util/regx/RegxUtil.hpp @ 188

Revision 188, 4.9 KB checked in by mattausch, 19 years ago (diff)

added xercesc to support

Line 
1/*
2 * The Apache Software License, Version 1.1
3 *
4 * Copyright (c) 2001 The Apache Software Foundation.  All rights
5 * reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 *
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in
16 *    the documentation and/or other materials provided with the
17 *    distribution.
18 *
19 * 3. The end-user documentation included with the redistribution,
20 *    if any, must include the following acknowledgment:
21 *       "This product includes software developed by the
22 *        Apache Software Foundation (http://www.apache.org/)."
23 *    Alternately, this acknowledgment may appear in the software itself,
24 *    if and wherever such third-party acknowledgments normally appear.
25 *
26 * 4. The names "Xerces" and "Apache Software Foundation" must
27 *    not be used to endorse or promote products derived from this
28 *    software without prior written permission. For written
29 *    permission, please contact apache\@apache.org.
30 *
31 * 5. Products derived from this software may not be called "Apache",
32 *    nor may "Apache" appear in their name, without prior written
33 *    permission of the Apache Software Foundation.
34 *
35 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
36 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
37 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
38 * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
39 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
40 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
41 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
42 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
43 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
44 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
45 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
46 * SUCH DAMAGE.
47 * ====================================================================
48 *
49 * This software consists of voluntary contributions made by many
50 * individuals on behalf of the Apache Software Foundation, and was
51 * originally based on software copyright (c) 2001, International
52 * Business Machines, Inc., http://www.ibm.com .  For more information
53 * on the Apache Software Foundation, please see
54 * <http://www.apache.org/>.
55 */
56
57/*
58 * $Id: RegxUtil.hpp,v 1.4 2003/05/16 00:03:10 knoaman Exp $
59 */
60
61#if !defined(REGXUTIL_HPP)
62#define REGXUTIL_HPP
63
64// ---------------------------------------------------------------------------
65//  Includes
66// ---------------------------------------------------------------------------
67#include <xercesc/util/XMLUniDefs.hpp>
68
69
70XERCES_CPP_NAMESPACE_BEGIN
71
72class MemoryManager;
73
74class XMLUTIL_EXPORT RegxUtil {
75public:
76
77        // -----------------------------------------------------------------------
78    //  Constructors and destructors
79    // -----------------------------------------------------------------------
80        ~RegxUtil() {}
81
82        static XMLInt32 composeFromSurrogate(const XMLCh high, const XMLCh low);
83        static bool isEOLChar(const XMLCh);
84        static bool isWordChar(const XMLCh);
85        static bool isLowSurrogate(const XMLCh ch);
86        static bool isHighSurrogate(const XMLCh ch);
87        static XMLCh* decomposeToSurrogates(XMLInt32 ch,
88                                        MemoryManager* const manager);
89        static XMLCh* stripExtendedComment(const XMLCh* const expression,
90                                       MemoryManager* const manager = 0);
91
92private:
93        // -----------------------------------------------------------------------
94    //  Unimplemented constructors and operators
95    // -----------------------------------------------------------------------
96    RegxUtil();
97};
98
99
100inline bool RegxUtil::isEOLChar(const XMLCh ch) {
101
102        return (ch == chLF || ch == chCR || ch == chLineSeparator
103           || ch == chParagraphSeparator);
104}
105
106inline XMLInt32 RegxUtil::composeFromSurrogate(const XMLCh high, const XMLCh low) {
107
108        return 0x10000 + ((high - 0xD800) << 10) + (low - 0xDC00);
109}
110
111inline bool RegxUtil::isLowSurrogate(const XMLCh ch) {
112
113        return (ch & 0xFC00) == 0xDC00;
114}
115
116inline bool RegxUtil::isHighSurrogate(const XMLCh ch) {
117
118        return (ch & 0xFC00) == 0xD800;
119}
120
121inline bool RegxUtil::isWordChar(const XMLCh ch) {
122
123        if ((ch == chUnderscore)
124                || (ch >= chDigit_0 && ch <= chDigit_9)
125                || (ch >= chLatin_A && ch <= chLatin_Z)
126                || (ch >= chLatin_a && ch <= chLatin_z))
127                return true;
128
129        return false;
130}
131
132XERCES_CPP_NAMESPACE_END
133
134#endif
135
136/**
137  * End of file RegxUtil.hpp
138  */
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