libdap Updated for version 3.20.10
libdap4 is an implementation of OPeNDAP's DAP protocol.
GNURegex.h
1
2// -*- mode: c++; c-basic-offset:4 -*-
3
4// This file is part of libdap, A C++ implementation of the OPeNDAP Data
5// Access Protocol.
6
7// Copyright (c) 2005 OPeNDAP, Inc.
8// Author: James Gallagher <jgallagher@opendap.org>
9//
10// This library is free software; you can redistribute it and/or
11// modify it under the terms of the GNU Lesser General Public
12// License as published by the Free Software Foundation; either
13// version 2.1 of the License, or (at your option) any later version.
14//
15// This library is distributed in the hope that it will be useful,
16// but WITHOUT ANY WARRANTY; without even the implied warranty of
17// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18// Lesser General Public License for more details.
19//
20// You should have received a copy of the GNU Lesser General Public
21// License along with this library; if not, write to the Free Software
22// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23//
24// You can contact OPeNDAP, Inc. at PO Box 112, Saunderstown, RI. 02874-0112.
25
26#ifndef _Regex_h
27#define _Regex_h 1
28
29#define USE_CPP_11_REGEX 0
30
31#if USE_CPP_11_REGEX
32#include <regex>
33#else
34#include <string>
35#endif
36
37namespace libdap
38{
39
40
56class Regex
57{
58private:
59#if USE_CPP_11_REGEX
60 std::regex d_exp;
61
62 void init(const char *s) { d_exp = std::regex(s); }
63 void init(const std::string &s) { d_exp = std::regex(s); } // , std::regex::basic
64#else
65 // d_preg was a regex_t* but I needed to include both regex.h and config.h
66 // to make the gnulib code work. Because this header is installed (and is
67 // used by other libraries) it cannot include config.h, so I moved the
68 // regex.h and config.h (among other) includes to the implementation. It
69 // would be cleaner to use a special class, but for one field that seems
70 // like overkill.
71 void *d_preg;
72
73 void init(const char *t);
74 void init(const std::string &s) { init(s.c_str()); } // std::regex::ECMAScript
75#endif
76
77public:
79 explicit Regex(const char *s) { init(s); }
81 Regex(const char *s, int) { init(s); }
83 explicit Regex(const std::string &s) { init(s); }
84
85#if USE_CPP_11_REGEX
86 ~Regex() = default;
87#else
88 ~Regex();
89#endif
90
92 int match(const char *s, int len, int pos = 0) const;
94 int match(const std::string &s) const;
95
97 int search(const char *s, int len, int &matchlen, int pos = 0) const ;
99 int search(const std::string &s, int &matchlen) const;
100};
101
102#if 0
103class Regex
104{
105private:
106 - std::regex d_exp;
107 -
108 - void init(const char *s) { d_exp = std::regex(s); }
109 - void init(const std::string &s) { d_exp = std::regex(s); } // , std::regex::basic
110 + // d_preg was a regex_t* but I needed to include both regex.h and config.h
111 + // to make the gnulib code work. Because this header is installed (and is
112 + // used by other libraries) it cannot include config.h, so I moved the
113 + // regex.h and config.h (among other) includes to the implementation. It
114 + // would be cleaner to use a special class, but for one field that seems
115 + // like overkill.
116 + void *d_preg;
117 + void init(const char *t);
118
119public:
120 -
121 - explicit Regex(const char *s) { init(s); }
122 -
123 - Regex(const char *s, int) { init(s); }
124 -
125 - explicit Regex(const std::string &s) { init(s); }
126 -
127 - ~Regex() = default;
128 -
129 -
130 - int match(const char *s, int len, int pos = 0) const;
131 -
132 - int match(const std::string &s) const;
133 -
134 -
135 - int search(const char *s, int len, int &matchlen, int pos = 0) const ;
136 -
137 - int search(const std::string &s, int &matchlen) const;
138 + Regex(const char *t);
139 + Regex(const char *t, int dummy);
140 + ~Regex();
141 +
142 +
143 + int match(const char* s, int len, int pos = 0);
144 +
145 + int search(const char* s, int len, int& matchlen, int pos = 0);
146};
147#endif
148
149} // namespace libdap
150
151#endif
Regular expression matching.
Definition GNURegex.h:57
Regex(const char *s)
initialize a Regex with a C string
Definition GNURegex.h:79
Regex(const std::string &s)
nitialize a Regex with a C++ string
Definition GNURegex.h:83
int search(const char *s, int len, int &matchlen, int pos=0) const
How much of the string does the pattern match.
Definition GNURegex.cc:206
Regex(const char *s, int)
Definition GNURegex.h:81
int match(const char *s, int len, int pos=0) const
Does the pattern match.
Definition GNURegex.cc:141
top level DAP object to house generic methods