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383 lines
18 KiB
383 lines
18 KiB
/*
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*
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* Copyright (c) 1998-2002
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* John Maddock
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*
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* Use, modification and distribution are subject to the
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* Boost Software License, Version 1.0. (See accompanying file
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* LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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*
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*/
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/*
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* LOCATION: see http://www.boost.org for most recent version.
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* FILE sub_match.cpp
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* VERSION see <boost/version.hpp>
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* DESCRIPTION: Declares template class sub_match.
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*/
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#ifndef BOOST_REGEX_V5_SUB_MATCH_HPP
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#define BOOST_REGEX_V5_SUB_MATCH_HPP
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namespace boost{
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template <class BidiIterator>
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struct sub_match : public std::pair<BidiIterator, BidiIterator>
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{
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typedef typename std::iterator_traits<BidiIterator>::value_type value_type;
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typedef typename std::iterator_traits<BidiIterator>::difference_type difference_type;
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typedef BidiIterator iterator_type;
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typedef BidiIterator iterator;
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typedef BidiIterator const_iterator;
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bool matched;
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sub_match() : std::pair<BidiIterator, BidiIterator>(), matched(false) {}
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sub_match(BidiIterator i) : std::pair<BidiIterator, BidiIterator>(i, i), matched(false) {}
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template <class T, class A>
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operator std::basic_string<value_type, T, A> ()const
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{
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return matched ? std::basic_string<value_type, T, A>(this->first, this->second) : std::basic_string<value_type, T, A>();
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}
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difference_type length()const
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{
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difference_type n = matched ? std::distance((BidiIterator)this->first, (BidiIterator)this->second) : 0;
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return n;
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}
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std::basic_string<value_type> str()const
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{
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std::basic_string<value_type> result;
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if(matched)
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{
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std::size_t len = std::distance((BidiIterator)this->first, (BidiIterator)this->second);
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result.reserve(len);
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BidiIterator i = this->first;
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while(i != this->second)
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{
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result.append(1, *i);
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++i;
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}
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}
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return result;
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}
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int compare(const sub_match& s)const
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{
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if(matched != s.matched)
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return static_cast<int>(matched) - static_cast<int>(s.matched);
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return str().compare(s.str());
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}
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int compare(const std::basic_string<value_type>& s)const
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{
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return str().compare(s);
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}
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int compare(const value_type* p)const
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{
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return str().compare(p);
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}
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bool operator==(const sub_match& that)const
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{ return compare(that) == 0; }
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bool operator !=(const sub_match& that)const
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{ return compare(that) != 0; }
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bool operator<(const sub_match& that)const
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{ return compare(that) < 0; }
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bool operator>(const sub_match& that)const
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{ return compare(that) > 0; }
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bool operator<=(const sub_match& that)const
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{ return compare(that) <= 0; }
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bool operator>=(const sub_match& that)const
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{ return compare(that) >= 0; }
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#ifdef BOOST_REGEX_MATCH_EXTRA
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typedef std::vector<sub_match<BidiIterator> > capture_sequence_type;
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const capture_sequence_type& captures()const
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{
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if(!m_captures)
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m_captures.reset(new capture_sequence_type());
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return *m_captures;
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}
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//
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// Private implementation API: DO NOT USE!
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//
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capture_sequence_type& get_captures()const
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{
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if(!m_captures)
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m_captures.reset(new capture_sequence_type());
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return *m_captures;
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}
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private:
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mutable std::unique_ptr<capture_sequence_type> m_captures;
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public:
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#endif
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sub_match(const sub_match& that, bool
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#ifdef BOOST_REGEX_MATCH_EXTRA
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deep_copy
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#endif
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= true
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)
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: std::pair<BidiIterator, BidiIterator>(that),
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matched(that.matched)
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{
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#ifdef BOOST_REGEX_MATCH_EXTRA
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if(that.m_captures)
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if(deep_copy)
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m_captures.reset(new capture_sequence_type(*(that.m_captures)));
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#endif
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}
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sub_match& operator=(const sub_match& that)
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{
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this->first = that.first;
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this->second = that.second;
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matched = that.matched;
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#ifdef BOOST_REGEX_MATCH_EXTRA
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if(that.m_captures)
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get_captures() = *(that.m_captures);
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#endif
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return *this;
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}
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//
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// Make this type a range, for both Boost.Range, and C++11:
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//
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BidiIterator begin()const { return this->first; }
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BidiIterator end()const { return this->second; }
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};
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typedef sub_match<const char*> csub_match;
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typedef sub_match<std::string::const_iterator> ssub_match;
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#ifndef BOOST_NO_WREGEX
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typedef sub_match<const wchar_t*> wcsub_match;
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typedef sub_match<std::wstring::const_iterator> wssub_match;
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#endif
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// comparison to std::basic_string<> part 1:
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template <class RandomAccessIterator, class traits, class Allocator>
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inline bool operator == (const std::basic_string<typename std::iterator_traits<RandomAccessIterator>::value_type, traits, Allocator>& s,
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const sub_match<RandomAccessIterator>& m)
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{ return s.compare(m.str()) == 0; }
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template <class RandomAccessIterator, class traits, class Allocator>
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inline bool operator != (const std::basic_string<typename std::iterator_traits<RandomAccessIterator>::value_type, traits, Allocator>& s,
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const sub_match<RandomAccessIterator>& m)
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{ return s.compare(m.str()) != 0; }
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template <class RandomAccessIterator, class traits, class Allocator>
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inline bool operator < (const std::basic_string<typename std::iterator_traits<RandomAccessIterator>::value_type, traits, Allocator>& s,
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const sub_match<RandomAccessIterator>& m)
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{ return s.compare(m.str()) < 0; }
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template <class RandomAccessIterator, class traits, class Allocator>
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inline bool operator <= (const std::basic_string<typename std::iterator_traits<RandomAccessIterator>::value_type, traits, Allocator>& s,
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const sub_match<RandomAccessIterator>& m)
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{ return s.compare(m.str()) <= 0; }
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template <class RandomAccessIterator, class traits, class Allocator>
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inline bool operator >= (const std::basic_string<typename std::iterator_traits<RandomAccessIterator>::value_type, traits, Allocator>& s,
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const sub_match<RandomAccessIterator>& m)
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{ return s.compare(m.str()) >= 0; }
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template <class RandomAccessIterator, class traits, class Allocator>
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inline bool operator > (const std::basic_string<typename std::iterator_traits<RandomAccessIterator>::value_type, traits, Allocator>& s,
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const sub_match<RandomAccessIterator>& m)
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{ return s.compare(m.str()) > 0; }
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// comparison to std::basic_string<> part 2:
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template <class RandomAccessIterator, class traits, class Allocator>
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inline bool operator == (const sub_match<RandomAccessIterator>& m,
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const std::basic_string<typename std::iterator_traits<RandomAccessIterator>::value_type, traits, Allocator>& s)
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{ return m.str().compare(s) == 0; }
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template <class RandomAccessIterator, class traits, class Allocator>
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inline bool operator != (const sub_match<RandomAccessIterator>& m,
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const std::basic_string<typename std::iterator_traits<RandomAccessIterator>::value_type, traits, Allocator>& s)
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{ return m.str().compare(s) != 0; }
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template <class RandomAccessIterator, class traits, class Allocator>
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inline bool operator < (const sub_match<RandomAccessIterator>& m,
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const std::basic_string<typename std::iterator_traits<RandomAccessIterator>::value_type, traits, Allocator>& s)
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{ return m.str().compare(s) < 0; }
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template <class RandomAccessIterator, class traits, class Allocator>
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inline bool operator > (const sub_match<RandomAccessIterator>& m,
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const std::basic_string<typename std::iterator_traits<RandomAccessIterator>::value_type, traits, Allocator>& s)
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{ return m.str().compare(s) > 0; }
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template <class RandomAccessIterator, class traits, class Allocator>
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inline bool operator <= (const sub_match<RandomAccessIterator>& m,
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const std::basic_string<typename std::iterator_traits<RandomAccessIterator>::value_type, traits, Allocator>& s)
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{ return m.str().compare(s) <= 0; }
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template <class RandomAccessIterator, class traits, class Allocator>
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inline bool operator >= (const sub_match<RandomAccessIterator>& m,
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const std::basic_string<typename std::iterator_traits<RandomAccessIterator>::value_type, traits, Allocator>& s)
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{ return m.str().compare(s) >= 0; }
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// comparison to const charT* part 1:
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template <class RandomAccessIterator>
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inline bool operator == (const sub_match<RandomAccessIterator>& m,
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typename std::iterator_traits<RandomAccessIterator>::value_type const* s)
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{ return m.str().compare(s) == 0; }
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template <class RandomAccessIterator>
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inline bool operator != (const sub_match<RandomAccessIterator>& m,
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typename std::iterator_traits<RandomAccessIterator>::value_type const* s)
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{ return m.str().compare(s) != 0; }
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template <class RandomAccessIterator>
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inline bool operator > (const sub_match<RandomAccessIterator>& m,
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typename std::iterator_traits<RandomAccessIterator>::value_type const* s)
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{ return m.str().compare(s) > 0; }
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template <class RandomAccessIterator>
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inline bool operator < (const sub_match<RandomAccessIterator>& m,
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typename std::iterator_traits<RandomAccessIterator>::value_type const* s)
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{ return m.str().compare(s) < 0; }
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template <class RandomAccessIterator>
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inline bool operator >= (const sub_match<RandomAccessIterator>& m,
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typename std::iterator_traits<RandomAccessIterator>::value_type const* s)
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{ return m.str().compare(s) >= 0; }
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template <class RandomAccessIterator>
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inline bool operator <= (const sub_match<RandomAccessIterator>& m,
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typename std::iterator_traits<RandomAccessIterator>::value_type const* s)
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{ return m.str().compare(s) <= 0; }
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// comparison to const charT* part 2:
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template <class RandomAccessIterator>
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inline bool operator == (typename std::iterator_traits<RandomAccessIterator>::value_type const* s,
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const sub_match<RandomAccessIterator>& m)
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{ return m.str().compare(s) == 0; }
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template <class RandomAccessIterator>
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inline bool operator != (typename std::iterator_traits<RandomAccessIterator>::value_type const* s,
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const sub_match<RandomAccessIterator>& m)
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{ return m.str().compare(s) != 0; }
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template <class RandomAccessIterator>
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inline bool operator < (typename std::iterator_traits<RandomAccessIterator>::value_type const* s,
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const sub_match<RandomAccessIterator>& m)
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{ return m.str().compare(s) > 0; }
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template <class RandomAccessIterator>
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inline bool operator > (typename std::iterator_traits<RandomAccessIterator>::value_type const* s,
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const sub_match<RandomAccessIterator>& m)
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{ return m.str().compare(s) < 0; }
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template <class RandomAccessIterator>
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inline bool operator <= (typename std::iterator_traits<RandomAccessIterator>::value_type const* s,
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const sub_match<RandomAccessIterator>& m)
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{ return m.str().compare(s) >= 0; }
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template <class RandomAccessIterator>
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inline bool operator >= (typename std::iterator_traits<RandomAccessIterator>::value_type const* s,
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const sub_match<RandomAccessIterator>& m)
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{ return m.str().compare(s) <= 0; }
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// comparison to const charT& part 1:
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template <class RandomAccessIterator>
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inline bool operator == (const sub_match<RandomAccessIterator>& m,
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typename std::iterator_traits<RandomAccessIterator>::value_type const& s)
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{ return m.str().compare(0, m.length(), &s, 1) == 0; }
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template <class RandomAccessIterator>
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inline bool operator != (const sub_match<RandomAccessIterator>& m,
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typename std::iterator_traits<RandomAccessIterator>::value_type const& s)
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{ return m.str().compare(0, m.length(), &s, 1) != 0; }
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template <class RandomAccessIterator>
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inline bool operator > (const sub_match<RandomAccessIterator>& m,
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typename std::iterator_traits<RandomAccessIterator>::value_type const& s)
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{ return m.str().compare(0, m.length(), &s, 1) > 0; }
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template <class RandomAccessIterator>
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inline bool operator < (const sub_match<RandomAccessIterator>& m,
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typename std::iterator_traits<RandomAccessIterator>::value_type const& s)
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{ return m.str().compare(0, m.length(), &s, 1) < 0; }
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template <class RandomAccessIterator>
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inline bool operator >= (const sub_match<RandomAccessIterator>& m,
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typename std::iterator_traits<RandomAccessIterator>::value_type const& s)
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{ return m.str().compare(0, m.length(), &s, 1) >= 0; }
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template <class RandomAccessIterator>
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inline bool operator <= (const sub_match<RandomAccessIterator>& m,
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typename std::iterator_traits<RandomAccessIterator>::value_type const& s)
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{ return m.str().compare(0, m.length(), &s, 1) <= 0; }
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// comparison to const charT* part 2:
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template <class RandomAccessIterator>
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inline bool operator == (typename std::iterator_traits<RandomAccessIterator>::value_type const& s,
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const sub_match<RandomAccessIterator>& m)
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{ return m.str().compare(0, m.length(), &s, 1) == 0; }
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template <class RandomAccessIterator>
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inline bool operator != (typename std::iterator_traits<RandomAccessIterator>::value_type const& s,
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const sub_match<RandomAccessIterator>& m)
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{ return m.str().compare(0, m.length(), &s, 1) != 0; }
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template <class RandomAccessIterator>
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inline bool operator < (typename std::iterator_traits<RandomAccessIterator>::value_type const& s,
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const sub_match<RandomAccessIterator>& m)
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{ return m.str().compare(0, m.length(), &s, 1) > 0; }
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template <class RandomAccessIterator>
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inline bool operator > (typename std::iterator_traits<RandomAccessIterator>::value_type const& s,
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const sub_match<RandomAccessIterator>& m)
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{ return m.str().compare(0, m.length(), &s, 1) < 0; }
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template <class RandomAccessIterator>
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inline bool operator <= (typename std::iterator_traits<RandomAccessIterator>::value_type const& s,
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const sub_match<RandomAccessIterator>& m)
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{ return m.str().compare(0, m.length(), &s, 1) >= 0; }
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template <class RandomAccessIterator>
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inline bool operator >= (typename std::iterator_traits<RandomAccessIterator>::value_type const& s,
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const sub_match<RandomAccessIterator>& m)
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{ return m.str().compare(0, m.length(), &s, 1) <= 0; }
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// addition operators:
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template <class RandomAccessIterator, class traits, class Allocator>
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inline std::basic_string<typename std::iterator_traits<RandomAccessIterator>::value_type, traits, Allocator>
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operator + (const std::basic_string<typename std::iterator_traits<RandomAccessIterator>::value_type, traits, Allocator>& s,
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const sub_match<RandomAccessIterator>& m)
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{
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std::basic_string<typename std::iterator_traits<RandomAccessIterator>::value_type, traits, Allocator> result;
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result.reserve(s.size() + m.length() + 1);
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return result.append(s).append(m.first, m.second);
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}
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template <class RandomAccessIterator, class traits, class Allocator>
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inline std::basic_string<typename std::iterator_traits<RandomAccessIterator>::value_type, traits, Allocator>
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operator + (const sub_match<RandomAccessIterator>& m,
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const std::basic_string<typename std::iterator_traits<RandomAccessIterator>::value_type, traits, Allocator>& s)
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{
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std::basic_string<typename std::iterator_traits<RandomAccessIterator>::value_type, traits, Allocator> result;
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result.reserve(s.size() + m.length() + 1);
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return result.append(m.first, m.second).append(s);
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}
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template <class RandomAccessIterator>
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inline std::basic_string<typename std::iterator_traits<RandomAccessIterator>::value_type>
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operator + (typename std::iterator_traits<RandomAccessIterator>::value_type const* s,
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const sub_match<RandomAccessIterator>& m)
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{
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std::basic_string<typename std::iterator_traits<RandomAccessIterator>::value_type> result;
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result.reserve(std::char_traits<typename std::iterator_traits<RandomAccessIterator>::value_type>::length(s) + m.length() + 1);
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return result.append(s).append(m.first, m.second);
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}
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template <class RandomAccessIterator>
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inline std::basic_string<typename std::iterator_traits<RandomAccessIterator>::value_type>
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operator + (const sub_match<RandomAccessIterator>& m,
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typename std::iterator_traits<RandomAccessIterator>::value_type const * s)
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{
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std::basic_string<typename std::iterator_traits<RandomAccessIterator>::value_type> result;
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result.reserve(std::char_traits<typename std::iterator_traits<RandomAccessIterator>::value_type>::length(s) + m.length() + 1);
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return result.append(m.first, m.second).append(s);
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}
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template <class RandomAccessIterator>
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inline std::basic_string<typename std::iterator_traits<RandomAccessIterator>::value_type>
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operator + (typename std::iterator_traits<RandomAccessIterator>::value_type const& s,
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const sub_match<RandomAccessIterator>& m)
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{
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std::basic_string<typename std::iterator_traits<RandomAccessIterator>::value_type> result;
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result.reserve(m.length() + 2);
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return result.append(1, s).append(m.first, m.second);
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}
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template <class RandomAccessIterator>
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inline std::basic_string<typename std::iterator_traits<RandomAccessIterator>::value_type>
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operator + (const sub_match<RandomAccessIterator>& m,
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typename std::iterator_traits<RandomAccessIterator>::value_type const& s)
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{
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std::basic_string<typename std::iterator_traits<RandomAccessIterator>::value_type> result;
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result.reserve(m.length() + 2);
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return result.append(m.first, m.second).append(1, s);
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}
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template <class RandomAccessIterator>
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inline std::basic_string<typename std::iterator_traits<RandomAccessIterator>::value_type>
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operator + (const sub_match<RandomAccessIterator>& m1,
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const sub_match<RandomAccessIterator>& m2)
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{
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std::basic_string<typename std::iterator_traits<RandomAccessIterator>::value_type> result;
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result.reserve(m1.length() + m2.length() + 1);
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return result.append(m1.first, m1.second).append(m2.first, m2.second);
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}
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template <class charT, class traits, class RandomAccessIterator>
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std::basic_ostream<charT, traits>&
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operator << (std::basic_ostream<charT, traits>& os,
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const sub_match<RandomAccessIterator>& s)
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{
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return (os << s.str());
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}
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} // namespace boost
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#endif
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