regex-backref-matcher.cpp
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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).
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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.
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13  * PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
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17  * <http://www.gnu.org/licenses/>.
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19  * See AUTHORS.md for complete list of ndn-cxx authors and contributors.
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21  * @author Yingdi Yu <http://irl.cs.ucla.edu/~yingdi/>
22  */
23 
26 
27 namespace ndn {
28 
30  shared_ptr<RegexBackrefManager> backrefManager)
31  : RegexMatcher(expr, EXPR_BACKREF, std::move(backrefManager))
32 {
33 }
34 
35 void
37 {
38  if (m_expr.size() < 2)
39  BOOST_THROW_EXCEPTION(Error("Unrecognized format: " + m_expr));
40 
41  size_t lastIndex = m_expr.size() - 1;
42  if ('(' == m_expr[0] && ')' == m_expr[lastIndex]) {
43  m_matchers.push_back(make_shared<RegexPatternListMatcher>(m_expr.substr(1, lastIndex - 1),
45  }
46  else
47  BOOST_THROW_EXCEPTION(Error("Unrecognized format: " + m_expr));
48 }
49 
50 } // namespace ndn
Copyright (c) 2013-2017 Regents of the University of California.
Definition: common.hpp:66
STL namespace.
RegexBackrefMatcher(const std::string &expr, shared_ptr< RegexBackrefManager > backrefManager)
shared_ptr< RegexBackrefManager > m_backrefManager
std::vector< shared_ptr< RegexMatcher > > m_matchers
const std::string m_expr
void compile() override
Compile the regular expression to generate the more matchers when necessary.