1/*
2 * libjingle
3 * Copyright 2004--2005, Google Inc.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 *  1. Redistributions of source code must retain the above copyright notice,
9 *     this list of conditions and the following disclaimer.
10 *  2. 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 *  3. The name of the author may not be used to endorse or promote products
14 *     derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28#ifndef TALK_XMLLITE_QNAME_H_
29#define TALK_XMLLITE_QNAME_H_
30
31#include <string>
32
33namespace buzz {
34
35class QName;
36
37// StaticQName is used to represend constant quailified names. They
38// can be initialized statically and don't need intializers code, e.g.
39//   const StaticQName QN_FOO = { "foo_namespace", "foo" };
40//
41// Beside this use case, QName should be used everywhere
42// else. StaticQName instances are implicitly converted to QName
43// objects.
44struct StaticQName {
45  const char* const ns;
46  const char* const local;
47
48  bool operator==(const QName& other) const;
49  bool operator!=(const QName& other) const;
50};
51
52class QName {
53 public:
54  QName();
55  QName(const QName& qname);
56  QName(const StaticQName& const_value);
57  QName(const std::string& ns, const std::string& local);
58  explicit QName(const std::string& merged_or_local);
59  ~QName();
60
61  const std::string& Namespace() const { return namespace_; }
62  const std::string& LocalPart() const { return local_part_; }
63  std::string Merged() const;
64  bool IsEmpty() const;
65
66  int Compare(const StaticQName& other) const;
67  int Compare(const QName& other) const;
68
69  bool operator==(const StaticQName& other) const {
70    return Compare(other) == 0;
71  }
72  bool operator==(const QName& other) const {
73    return Compare(other) == 0;
74  }
75  bool operator!=(const StaticQName& other) const {
76    return Compare(other) != 0;
77  }
78  bool operator!=(const QName& other) const {
79    return Compare(other) != 0;
80  }
81  bool operator<(const QName& other) const {
82    return Compare(other) < 0;
83  }
84
85 private:
86  std::string namespace_;
87  std::string local_part_;
88};
89
90inline bool StaticQName::operator==(const QName& other) const {
91  return other.Compare(*this) == 0;
92}
93
94inline bool StaticQName::operator!=(const QName& other) const {
95  return other.Compare(*this) != 0;
96}
97
98}  // namespace buzz
99
100#endif  // TALK_XMLLITE_QNAME_H_
101