NS-3 based Named Data Networking (NDN) simulator
ndnSIM 2.5: NDN, CCN, CCNx, content centric networks
API Documentation
regex-matcher.hpp
Go to the documentation of this file.
1 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
2 /*
3  * Copyright (c) 2013-2017 Regents of the University of California.
4  *
5  * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
6  *
7  * ndn-cxx library is free software: you can redistribute it and/or modify it under the
8  * terms of the GNU Lesser General Public License as published by the Free Software
9  * Foundation, either version 3 of the License, or (at your option) any later version.
10  *
11  * ndn-cxx library is distributed in the hope that it will be useful, but WITHOUT ANY
12  * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
13  * PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
14  *
15  * You should have received copies of the GNU General Public License and GNU Lesser
16  * General Public License along with ndn-cxx, e.g., in COPYING.md file. If not, see
17  * <http://www.gnu.org/licenses/>.
18  *
19  * See AUTHORS.md for complete list of ndn-cxx authors and contributors.
20  *
21  * @author Yingdi Yu <http://irl.cs.ucla.edu/~yingdi/>
22  */
23 
24 #ifndef NDN_UTIL_REGEX_REGEX_MATCHER_HPP
25 #define NDN_UTIL_REGEX_REGEX_MATCHER_HPP
26 
28 #include "../../name.hpp"
29 
30 namespace ndn {
31 
33 {
34 public:
35  class Error : public std::runtime_error
36  {
37  public:
38  explicit
39  Error(const std::string& what)
40  : std::runtime_error(what)
41  {
42  }
43  };
44 
53  };
54 
55  RegexMatcher(const std::string& expr, const RegexExprType& type,
56  shared_ptr<RegexBackrefManager> backrefManager = nullptr);
57 
58  virtual
59  ~RegexMatcher();
60 
61  virtual bool
62  match(const Name& name, size_t offset, size_t len);
63 
68  const std::vector<name::Component>&
70  {
71  return m_matchResult;
72  }
73 
74  const std::string&
75  getExpr() const
76  {
77  return m_expr;
78  }
79 
80 protected:
84  virtual void
85  compile() = 0;
86 
87 private:
88  bool
89  recursiveMatch(size_t matcherNo, const Name& name, size_t offset, size_t len);
90 
91 protected:
92  const std::string m_expr;
94  shared_ptr<RegexBackrefManager> m_backrefManager;
95  std::vector<shared_ptr<RegexMatcher>> m_matchers;
96  std::vector<name::Component> m_matchResult;
97 };
98 
99 std::ostream&
100 operator<<(std::ostream& os, const RegexMatcher& rm);
101 
102 } // namespace ndn
103 
104 #endif // NDN_UTIL_REGEX_REGEX_MATCHER_HPP
virtual void compile()=0
Compile the regular expression to generate the more matchers when necessary.
Copyright (c) 2011-2015 Regents of the University of California.
Error(const std::string &what)
std::ostream & operator<<(std::ostream &os, const Data &data)
Definition: data.cpp:337
const RegexExprType m_type
STL namespace.
virtual ~RegexMatcher()
const std::vector< name::Component > & getMatchResult() const
get the matched name components
shared_ptr< RegexBackrefManager > m_backrefManager
std::vector< shared_ptr< RegexMatcher > > m_matchers
const std::string & getExpr() const
std::vector< name::Component > m_matchResult
Represents an absolute name.
Definition: name.hpp:42
const std::string m_expr
virtual bool match(const Name &name, size_t offset, size_t len)
RegexMatcher(const std::string &expr, const RegexExprType &type, shared_ptr< RegexBackrefManager > backrefManager=nullptr)