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comparison generator/parser/rpp/pp-string.h @ 1:e78566595089

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author mandel
date Mon, 11 May 2009 16:01:50 +0000
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0:36fb74dc547d 1:e78566595089
1 /****************************************************************************
2 **
3 ** Copyright (C) 1992-2008 Nokia. All rights reserved.
4 ** Copyright 2005 Roberto Raggi <roberto@kdevelop.org>
5 **
6 ** This file is part of Qt Jambi.
7 **
8 ** * Commercial Usage
9 * Licensees holding valid Qt Commercial licenses may use this file in
10 * accordance with the Qt Commercial License Agreement provided with the
11 * Software or, alternatively, in accordance with the terms contained in
12 * a written agreement between you and Nokia.
13 *
14 *
15 * GNU General Public License Usage
16 * Alternatively, this file may be used under the terms of the GNU
17 * General Public License versions 2.0 or 3.0 as published by the Free
18 * Software Foundation and appearing in the file LICENSE.GPL included in
19 * the packaging of this file. Please review the following information
20 * to ensure GNU General Public Licensing requirements will be met:
21 * http://www.fsf.org/licensing/licenses/info/GPLv2.html and
22 * http://www.gnu.org/copyleft/gpl.html. In addition, as a special
23 * exception, Nokia gives you certain additional rights. These rights
24 * are described in the Nokia Qt GPL Exception version 1.2, included in
25 * the file GPL_EXCEPTION.txt in this package.
26 *
27 * Qt for Windows(R) Licensees
28 * As a special exception, Nokia, as the sole copyright holder for Qt
29 * Designer, grants users of the Qt/Eclipse Integration plug-in the
30 * right for the Qt/Eclipse Integration to link to functionality
31 * provided by Qt Designer and its related libraries.
32 *
33 *
34 * If you are unsure which license is appropriate for your use, please
35 * contact the sales department at qt-sales@nokia.com.
36
37 **
38 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
39 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
40 **
41 ****************************************************************************/
42
43 #ifndef PP_STRING_H
44 #define PP_STRING_H
45
46 namespace rpp {
47
48 template <typename _CharT>
49 class pp_string
50 {
51 typedef std::char_traits<_CharT> traits_type;
52 typedef std::size_t size_type;
53
54 _CharT const *_M_begin;
55 std::size_t _M_size;
56
57 public:
58 inline pp_string ():
59 _M_begin (0), _M_size(0) {}
60
61 explicit pp_string (std::string const &__s):
62 _M_begin (__s.c_str ()), _M_size (__s.size ()) {}
63
64 inline pp_string (_CharT const *__begin, std::size_t __size):
65 _M_begin (__begin), _M_size (__size) {}
66
67 inline _CharT const *begin () const { return _M_begin; }
68 inline _CharT const *end () const { return _M_begin + _M_size; }
69
70 inline _CharT at (std::size_t index) const { return _M_begin [index]; }
71
72 inline std::size_t size () const { return _M_size; }
73
74 inline int compare (pp_string const &__other) const
75 {
76 size_type const __size = this->size();
77 size_type const __osize = __other.size();
78 size_type const __len = std::min (__size, __osize);
79
80 int __r = traits_type::compare (_M_begin, __other._M_begin, __len);
81 if (!__r)
82 __r = (int) (__size - __osize);
83
84 return __r;
85 }
86
87 inline bool operator == (pp_string const &__other) const
88 { return compare (__other) == 0; }
89
90 inline bool operator != (pp_string const &__other) const
91 { return compare (__other) != 0; }
92
93 inline bool operator < (pp_string const &__other) const
94 { return compare (__other) < 0; }
95
96 inline bool operator == (char const *s) const
97 {
98 std::size_t n = strlen (s);
99
100 if (n != _M_size)
101 return false;
102
103 return ! strncmp (_M_begin, s, n);
104 }
105
106 inline bool operator != (char const *s) const
107 { return ! operator == (s); }
108 };
109
110 } // namespace rpp
111
112 #endif // PP_STRING_H
113
114 // kate: space-indent on; indent-width 2; replace-tabs on;