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			708 lines
		
	
	
		
			23 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
|   | /* | ||
|  |  * | ||
|  |  * Copyright (c) 1998-2009 | ||
|  |  * John Maddock | ||
|  |  * | ||
|  |  * Use, modification and distribution are subject to the  | ||
|  |  * Boost Software License, Version 1.0. (See accompanying file  | ||
|  |  * LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | ||
|  |  * | ||
|  |  */ | ||
|  | 
 | ||
|  |  /* | ||
|  |   *   LOCATION:    see http://www.boost.org for most recent version. | ||
|  |   *   FILE         match_results.cpp | ||
|  |   *   VERSION      see <boost/version.hpp> | ||
|  |   *   DESCRIPTION: Declares template class match_results. | ||
|  |   */ | ||
|  | 
 | ||
|  | #ifndef BOOST_REGEX_V4_MATCH_RESULTS_HPP | ||
|  | #define BOOST_REGEX_V4_MATCH_RESULTS_HPP | ||
|  | 
 | ||
|  | #ifdef BOOST_MSVC | ||
|  | #pragma warning(push) | ||
|  | #pragma warning(disable: 4103) | ||
|  | #endif | ||
|  | #ifdef BOOST_HAS_ABI_HEADERS | ||
|  | #  include BOOST_ABI_PREFIX | ||
|  | #endif | ||
|  | #ifdef BOOST_MSVC | ||
|  | #pragma warning(pop) | ||
|  | #endif | ||
|  | 
 | ||
|  | namespace boost{ | ||
|  | #ifdef BOOST_MSVC | ||
|  | #pragma warning(push) | ||
|  | #pragma warning(disable : 4251 4231) | ||
|  | #  if BOOST_MSVC < 1600 | ||
|  | #     pragma warning(disable : 4660) | ||
|  | #  endif | ||
|  | #endif | ||
|  | 
 | ||
|  | namespace BOOST_REGEX_DETAIL_NS{ | ||
|  | 
 | ||
|  | class named_subexpressions; | ||
|  | 
 | ||
|  | } | ||
|  | 
 | ||
|  | template <class BidiIterator, class Allocator> | ||
|  | class match_results | ||
|  | {  | ||
|  | private: | ||
|  | #ifndef BOOST_NO_STD_ALLOCATOR | ||
|  |    typedef          std::vector<sub_match<BidiIterator>, Allocator> vector_type; | ||
|  | #else | ||
|  |    typedef          std::vector<sub_match<BidiIterator> >           vector_type; | ||
|  | #endif | ||
|  | public:  | ||
|  |    typedef          sub_match<BidiIterator>                         value_type; | ||
|  | #if  !defined(BOOST_NO_STD_ALLOCATOR) && !(defined(BOOST_MSVC) && defined(_STLPORT_VERSION)) | ||
|  |    typedef typename Allocator::const_reference                              const_reference; | ||
|  | #else | ||
|  |    typedef          const value_type&                                       const_reference; | ||
|  | #endif | ||
|  |    typedef          const_reference                                         reference; | ||
|  |    typedef typename vector_type::const_iterator                             const_iterator; | ||
|  |    typedef          const_iterator                                          iterator; | ||
|  |    typedef typename BOOST_REGEX_DETAIL_NS::regex_iterator_traits< | ||
|  |                                     BidiIterator>::difference_type          difference_type; | ||
|  |    typedef typename Allocator::size_type                                    size_type; | ||
|  |    typedef          Allocator                                               allocator_type; | ||
|  |    typedef typename BOOST_REGEX_DETAIL_NS::regex_iterator_traits< | ||
|  |                                     BidiIterator>::value_type               char_type; | ||
|  |    typedef          std::basic_string<char_type>                            string_type; | ||
|  |    typedef          BOOST_REGEX_DETAIL_NS::named_subexpressions                         named_sub_type; | ||
|  | 
 | ||
|  |    // construct/copy/destroy: | ||
|  |    explicit match_results(const Allocator& a = Allocator()) | ||
|  | #ifndef BOOST_NO_STD_ALLOCATOR | ||
|  |       : m_subs(a), m_base(), m_null(), m_last_closed_paren(0), m_is_singular(true) {} | ||
|  | #else | ||
|  |       : m_subs(), m_base(), m_null(), m_last_closed_paren(0), m_is_singular(true) { (void)a; } | ||
|  | #endif | ||
|  |    // | ||
|  |    // IMPORTANT: in the code below, the crazy looking checks around m_is_singular are | ||
|  |    // all required because it is illegal to copy a singular iterator. | ||
|  |    // See https://svn.boost.org/trac/boost/ticket/3632. | ||
|  |    // | ||
|  |    match_results(const match_results& m) | ||
|  |       : m_subs(m.m_subs), m_named_subs(m.m_named_subs), m_last_closed_paren(m.m_last_closed_paren), m_is_singular(m.m_is_singular)  | ||
|  |    { | ||
|  |       if(!m_is_singular) | ||
|  |       { | ||
|  |          m_base = m.m_base; | ||
|  |          m_null = m.m_null; | ||
|  |       } | ||
|  |    } | ||
|  |    match_results& operator=(const match_results& m) | ||
|  |    { | ||
|  |       m_subs = m.m_subs; | ||
|  |       m_named_subs = m.m_named_subs; | ||
|  |       m_last_closed_paren = m.m_last_closed_paren; | ||
|  |       m_is_singular = m.m_is_singular; | ||
|  |       if(!m_is_singular) | ||
|  |       { | ||
|  |          m_base = m.m_base; | ||
|  |          m_null = m.m_null; | ||
|  |       } | ||
|  |       return *this; | ||
|  |    } | ||
|  |    ~match_results(){} | ||
|  | 
 | ||
|  |    // size: | ||
|  |    size_type size() const | ||
|  |    { return empty() ? 0 : m_subs.size() - 2; } | ||
|  |    size_type max_size() const | ||
|  |    { return m_subs.max_size(); } | ||
|  |    bool empty() const | ||
|  |    { return m_subs.size() < 2; } | ||
|  |    // element access: | ||
|  |    difference_type length(int sub = 0) const | ||
|  |    { | ||
|  |       if(m_is_singular) | ||
|  |          raise_logic_error(); | ||
|  |       sub += 2; | ||
|  |       if((sub < (int)m_subs.size()) && (sub > 0)) | ||
|  |          return m_subs[sub].length(); | ||
|  |       return 0; | ||
|  |    } | ||
|  |    difference_type length(const char_type* sub) const | ||
|  |    { | ||
|  |       if(m_is_singular) | ||
|  |          raise_logic_error(); | ||
|  |       const char_type* sub_end = sub; | ||
|  |       while(*sub_end) ++sub_end; | ||
|  |       return length(named_subexpression_index(sub, sub_end)); | ||
|  |    } | ||
|  |    template <class charT> | ||
|  |    difference_type length(const charT* sub) const | ||
|  |    { | ||
|  |       if(m_is_singular) | ||
|  |          raise_logic_error(); | ||
|  |       const charT* sub_end = sub; | ||
|  |       while(*sub_end) ++sub_end; | ||
|  |       return length(named_subexpression_index(sub, sub_end)); | ||
|  |    } | ||
|  |    template <class charT, class Traits, class A> | ||
|  |    difference_type length(const std::basic_string<charT, Traits, A>& sub) const | ||
|  |    { | ||
|  |       return length(sub.c_str()); | ||
|  |    } | ||
|  |    difference_type position(size_type sub = 0) const | ||
|  |    { | ||
|  |       if(m_is_singular) | ||
|  |          raise_logic_error(); | ||
|  |       sub += 2; | ||
|  |       if(sub < m_subs.size()) | ||
|  |       { | ||
|  |          const sub_match<BidiIterator>& s = m_subs[sub]; | ||
|  |          if(s.matched || (sub == 2)) | ||
|  |          { | ||
|  |             return ::boost::BOOST_REGEX_DETAIL_NS::distance((BidiIterator)(m_base), (BidiIterator)(s.first)); | ||
|  |          } | ||
|  |       } | ||
|  |       return ~static_cast<difference_type>(0); | ||
|  |    } | ||
|  |    difference_type position(const char_type* sub) const | ||
|  |    { | ||
|  |       const char_type* sub_end = sub; | ||
|  |       while(*sub_end) ++sub_end; | ||
|  |       return position(named_subexpression_index(sub, sub_end)); | ||
|  |    } | ||
|  |    template <class charT> | ||
|  |    difference_type position(const charT* sub) const | ||
|  |    { | ||
|  |       const charT* sub_end = sub; | ||
|  |       while(*sub_end) ++sub_end; | ||
|  |       return position(named_subexpression_index(sub, sub_end)); | ||
|  |    } | ||
|  |    template <class charT, class Traits, class A> | ||
|  |    difference_type position(const std::basic_string<charT, Traits, A>& sub) const | ||
|  |    { | ||
|  |       return position(sub.c_str()); | ||
|  |    } | ||
|  |    string_type str(int sub = 0) const | ||
|  |    { | ||
|  |       if(m_is_singular) | ||
|  |          raise_logic_error(); | ||
|  |       sub += 2; | ||
|  |       string_type result; | ||
|  |       if(sub < (int)m_subs.size() && (sub > 0)) | ||
|  |       { | ||
|  |          const sub_match<BidiIterator>& s = m_subs[sub]; | ||
|  |          if(s.matched) | ||
|  |          { | ||
|  |             result = s.str(); | ||
|  |          } | ||
|  |       } | ||
|  |       return result; | ||
|  |    } | ||
|  |    string_type str(const char_type* sub) const | ||
|  |    { | ||
|  |       return (*this)[sub].str(); | ||
|  |    } | ||
|  |    template <class Traits, class A> | ||
|  |    string_type str(const std::basic_string<char_type, Traits, A>& sub) const | ||
|  |    { | ||
|  |       return (*this)[sub].str(); | ||
|  |    } | ||
|  |    template <class charT> | ||
|  |    string_type str(const charT* sub) const | ||
|  |    { | ||
|  |       return (*this)[sub].str(); | ||
|  |    } | ||
|  |    template <class charT, class Traits, class A> | ||
|  |    string_type str(const std::basic_string<charT, Traits, A>& sub) const | ||
|  |    { | ||
|  |       return (*this)[sub].str(); | ||
|  |    } | ||
|  |    const_reference operator[](int sub) const | ||
|  |    { | ||
|  |       if(m_is_singular && m_subs.empty()) | ||
|  |          raise_logic_error(); | ||
|  |       sub += 2; | ||
|  |       if(sub < (int)m_subs.size() && (sub >= 0)) | ||
|  |       { | ||
|  |          return m_subs[sub]; | ||
|  |       } | ||
|  |       return m_null; | ||
|  |    } | ||
|  |    // | ||
|  |    // Named sub-expressions: | ||
|  |    // | ||
|  |    const_reference named_subexpression(const char_type* i, const char_type* j) const | ||
|  |    { | ||
|  |       // | ||
|  |       // Scan for the leftmost *matched* subexpression with the specified named: | ||
|  |       // | ||
|  |       if(m_is_singular) | ||
|  |          raise_logic_error(); | ||
|  |       BOOST_REGEX_DETAIL_NS::named_subexpressions::range_type r = m_named_subs->equal_range(i, j); | ||
|  |       while((r.first != r.second) && ((*this)[r.first->index].matched == false)) | ||
|  |          ++r.first; | ||
|  |       return r.first != r.second ? (*this)[r.first->index] : m_null; | ||
|  |    } | ||
|  |    template <class charT> | ||
|  |    const_reference named_subexpression(const charT* i, const charT* j) const | ||
|  |    { | ||
|  |       BOOST_STATIC_ASSERT(sizeof(charT) <= sizeof(char_type)); | ||
|  |       if(i == j) | ||
|  |          return m_null; | ||
|  |       std::vector<char_type> s; | ||
|  |       while(i != j) | ||
|  |          s.insert(s.end(), *i++); | ||
|  |       return named_subexpression(&*s.begin(), &*s.begin() + s.size()); | ||
|  |    } | ||
|  |    int named_subexpression_index(const char_type* i, const char_type* j) const | ||
|  |    { | ||
|  |       // | ||
|  |       // Scan for the leftmost *matched* subexpression with the specified named. | ||
|  |       // If none found then return the leftmost expression with that name, | ||
|  |       // otherwise an invalid index: | ||
|  |       // | ||
|  |       if(m_is_singular) | ||
|  |          raise_logic_error(); | ||
|  |       BOOST_REGEX_DETAIL_NS::named_subexpressions::range_type s, r; | ||
|  |       s = r = m_named_subs->equal_range(i, j); | ||
|  |       while((r.first != r.second) && ((*this)[r.first->index].matched == false)) | ||
|  |          ++r.first; | ||
|  |       if(r.first == r.second) | ||
|  |          r = s; | ||
|  |       return r.first != r.second ? r.first->index : -20; | ||
|  |    } | ||
|  |    template <class charT> | ||
|  |    int named_subexpression_index(const charT* i, const charT* j) const | ||
|  |    { | ||
|  |       BOOST_STATIC_ASSERT(sizeof(charT) <= sizeof(char_type)); | ||
|  |       if(i == j) | ||
|  |          return -20; | ||
|  |       std::vector<char_type> s; | ||
|  |       while(i != j) | ||
|  |          s.insert(s.end(), *i++); | ||
|  |       return named_subexpression_index(&*s.begin(), &*s.begin() + s.size()); | ||
|  |    } | ||
|  |    template <class Traits, class A> | ||
|  |    const_reference operator[](const std::basic_string<char_type, Traits, A>& s) const | ||
|  |    { | ||
|  |       return named_subexpression(s.c_str(), s.c_str() + s.size()); | ||
|  |    } | ||
|  |    const_reference operator[](const char_type* p) const | ||
|  |    { | ||
|  |       const char_type* e = p; | ||
|  |       while(*e) ++e; | ||
|  |       return named_subexpression(p, e); | ||
|  |    } | ||
|  | 
 | ||
|  |    template <class charT> | ||
|  |    const_reference operator[](const charT* p) const | ||
|  |    { | ||
|  |       BOOST_STATIC_ASSERT(sizeof(charT) <= sizeof(char_type)); | ||
|  |       if(*p == 0) | ||
|  |          return m_null; | ||
|  |       std::vector<char_type> s; | ||
|  |       while(*p) | ||
|  |          s.insert(s.end(), *p++); | ||
|  |       return named_subexpression(&*s.begin(), &*s.begin() + s.size()); | ||
|  |    } | ||
|  |    template <class charT, class Traits, class A> | ||
|  |    const_reference operator[](const std::basic_string<charT, Traits, A>& ns) const | ||
|  |    { | ||
|  |       BOOST_STATIC_ASSERT(sizeof(charT) <= sizeof(char_type)); | ||
|  |       if(ns.empty()) | ||
|  |          return m_null; | ||
|  |       std::vector<char_type> s; | ||
|  |       for(unsigned i = 0; i < ns.size(); ++i) | ||
|  |          s.insert(s.end(), ns[i]); | ||
|  |       return named_subexpression(&*s.begin(), &*s.begin() + s.size()); | ||
|  |    } | ||
|  | 
 | ||
|  |    const_reference prefix() const | ||
|  |    { | ||
|  |       if(m_is_singular) | ||
|  |          raise_logic_error(); | ||
|  |       return (*this)[-1]; | ||
|  |    } | ||
|  | 
 | ||
|  |    const_reference suffix() const | ||
|  |    { | ||
|  |       if(m_is_singular) | ||
|  |          raise_logic_error(); | ||
|  |       return (*this)[-2]; | ||
|  |    } | ||
|  |    const_iterator begin() const | ||
|  |    { | ||
|  |       return (m_subs.size() > 2) ? (m_subs.begin() + 2) : m_subs.end(); | ||
|  |    } | ||
|  |    const_iterator end() const | ||
|  |    { | ||
|  |       return m_subs.end(); | ||
|  |    } | ||
|  |    // format: | ||
|  |    template <class OutputIterator, class Functor> | ||
|  |    OutputIterator format(OutputIterator out, | ||
|  |                          Functor fmt, | ||
|  |                          match_flag_type flags = format_default) const | ||
|  |    { | ||
|  |       if(m_is_singular) | ||
|  |          raise_logic_error(); | ||
|  |       typedef typename BOOST_REGEX_DETAIL_NS::compute_functor_type<Functor, match_results<BidiIterator, Allocator>, OutputIterator>::type F; | ||
|  |       F func(fmt); | ||
|  |       return func(*this, out, flags); | ||
|  |    } | ||
|  |    template <class Functor> | ||
|  |    string_type format(Functor fmt, match_flag_type flags = format_default) const | ||
|  |    { | ||
|  |       if(m_is_singular) | ||
|  |          raise_logic_error(); | ||
|  |       std::basic_string<char_type> result; | ||
|  |       BOOST_REGEX_DETAIL_NS::string_out_iterator<std::basic_string<char_type> > i(result); | ||
|  | 
 | ||
|  |       typedef typename BOOST_REGEX_DETAIL_NS::compute_functor_type<Functor, match_results<BidiIterator, Allocator>, BOOST_REGEX_DETAIL_NS::string_out_iterator<std::basic_string<char_type> > >::type F; | ||
|  |       F func(fmt); | ||
|  | 
 | ||
|  |       func(*this, i, flags); | ||
|  |       return result; | ||
|  |    } | ||
|  |    // format with locale: | ||
|  |    template <class OutputIterator, class Functor, class RegexT> | ||
|  |    OutputIterator format(OutputIterator out, | ||
|  |                          Functor fmt, | ||
|  |                          match_flag_type flags, | ||
|  |                          const RegexT& re) const | ||
|  |    { | ||
|  |       if(m_is_singular) | ||
|  |          raise_logic_error(); | ||
|  |       typedef ::boost::regex_traits_wrapper<typename RegexT::traits_type> traits_type; | ||
|  |       typedef typename BOOST_REGEX_DETAIL_NS::compute_functor_type<Functor, match_results<BidiIterator, Allocator>, OutputIterator, traits_type>::type F; | ||
|  |       F func(fmt); | ||
|  |       return func(*this, out, flags, re.get_traits()); | ||
|  |    } | ||
|  |    template <class RegexT, class Functor> | ||
|  |    string_type format(Functor fmt, | ||
|  |                       match_flag_type flags, | ||
|  |                       const RegexT& re) const | ||
|  |    { | ||
|  |       if(m_is_singular) | ||
|  |          raise_logic_error(); | ||
|  |       typedef ::boost::regex_traits_wrapper<typename RegexT::traits_type> traits_type; | ||
|  |       std::basic_string<char_type> result; | ||
|  |       BOOST_REGEX_DETAIL_NS::string_out_iterator<std::basic_string<char_type> > i(result); | ||
|  | 
 | ||
|  |       typedef typename BOOST_REGEX_DETAIL_NS::compute_functor_type<Functor, match_results<BidiIterator, Allocator>, BOOST_REGEX_DETAIL_NS::string_out_iterator<std::basic_string<char_type> >, traits_type >::type F; | ||
|  |       F func(fmt); | ||
|  | 
 | ||
|  |       func(*this, i, flags, re.get_traits()); | ||
|  |       return result; | ||
|  |    } | ||
|  | 
 | ||
|  |    const_reference get_last_closed_paren()const | ||
|  |    { | ||
|  |       if(m_is_singular) | ||
|  |          raise_logic_error(); | ||
|  |       return m_last_closed_paren == 0 ? m_null : (*this)[m_last_closed_paren]; | ||
|  |    } | ||
|  | 
 | ||
|  |    allocator_type get_allocator() const | ||
|  |    { | ||
|  | #ifndef BOOST_NO_STD_ALLOCATOR | ||
|  |       return m_subs.get_allocator(); | ||
|  | #else | ||
|  |      return allocator_type(); | ||
|  | #endif | ||
|  |    } | ||
|  |    void swap(match_results& that) | ||
|  |    { | ||
|  |       std::swap(m_subs, that.m_subs); | ||
|  |       std::swap(m_named_subs, that.m_named_subs); | ||
|  |       std::swap(m_last_closed_paren, that.m_last_closed_paren); | ||
|  |       if(m_is_singular) | ||
|  |       { | ||
|  |          if(!that.m_is_singular) | ||
|  |          { | ||
|  |             m_base = that.m_base; | ||
|  |             m_null = that.m_null; | ||
|  |          } | ||
|  |       } | ||
|  |       else if(that.m_is_singular) | ||
|  |       { | ||
|  |          that.m_base = m_base; | ||
|  |          that.m_null = m_null; | ||
|  |       } | ||
|  |       else | ||
|  |       { | ||
|  |          std::swap(m_base, that.m_base); | ||
|  |          std::swap(m_null, that.m_null); | ||
|  |       } | ||
|  |       std::swap(m_is_singular, that.m_is_singular); | ||
|  |    } | ||
|  |    bool operator==(const match_results& that)const | ||
|  |    { | ||
|  |       if(m_is_singular) | ||
|  |       { | ||
|  |          return that.m_is_singular; | ||
|  |       } | ||
|  |       else if(that.m_is_singular) | ||
|  |       { | ||
|  |          return false; | ||
|  |       } | ||
|  |       return (m_subs == that.m_subs) && (m_base == that.m_base) && (m_last_closed_paren == that.m_last_closed_paren); | ||
|  |    } | ||
|  |    bool operator!=(const match_results& that)const | ||
|  |    { return !(*this == that); } | ||
|  | 
 | ||
|  | #ifdef BOOST_REGEX_MATCH_EXTRA | ||
|  |    typedef typename sub_match<BidiIterator>::capture_sequence_type capture_sequence_type; | ||
|  | 
 | ||
|  |    const capture_sequence_type& captures(int i)const | ||
|  |    { | ||
|  |       if(m_is_singular) | ||
|  |          raise_logic_error(); | ||
|  |       return (*this)[i].captures(); | ||
|  |    } | ||
|  | #endif | ||
|  | 
 | ||
|  |    // | ||
|  |    // private access functions: | ||
|  |    void BOOST_REGEX_CALL set_second(BidiIterator i) | ||
|  |    { | ||
|  |       BOOST_ASSERT(m_subs.size() > 2); | ||
|  |       m_subs[2].second = i; | ||
|  |       m_subs[2].matched = true; | ||
|  |       m_subs[0].first = i; | ||
|  |       m_subs[0].matched = (m_subs[0].first != m_subs[0].second); | ||
|  |       m_null.first = i; | ||
|  |       m_null.second = i; | ||
|  |       m_null.matched = false; | ||
|  |       m_is_singular = false; | ||
|  |    } | ||
|  | 
 | ||
|  |    void BOOST_REGEX_CALL set_second(BidiIterator i, size_type pos, bool m = true, bool escape_k = false) | ||
|  |    { | ||
|  |       if(pos) | ||
|  |          m_last_closed_paren = static_cast<int>(pos); | ||
|  |       pos += 2; | ||
|  |       BOOST_ASSERT(m_subs.size() > pos); | ||
|  |       m_subs[pos].second = i; | ||
|  |       m_subs[pos].matched = m; | ||
|  |       if((pos == 2) && !escape_k) | ||
|  |       { | ||
|  |          m_subs[0].first = i; | ||
|  |          m_subs[0].matched = (m_subs[0].first != m_subs[0].second); | ||
|  |          m_null.first = i; | ||
|  |          m_null.second = i; | ||
|  |          m_null.matched = false; | ||
|  |          m_is_singular = false; | ||
|  |       } | ||
|  |    } | ||
|  |    void BOOST_REGEX_CALL set_size(size_type n, BidiIterator i, BidiIterator j) | ||
|  |    { | ||
|  |       value_type v(j); | ||
|  |       size_type len = m_subs.size(); | ||
|  |       if(len > n + 2) | ||
|  |       { | ||
|  |          m_subs.erase(m_subs.begin()+n+2, m_subs.end()); | ||
|  |          std::fill(m_subs.begin(), m_subs.end(), v); | ||
|  |       } | ||
|  |       else | ||
|  |       { | ||
|  |          std::fill(m_subs.begin(), m_subs.end(), v); | ||
|  |          if(n+2 != len) | ||
|  |             m_subs.insert(m_subs.end(), n+2-len, v); | ||
|  |       } | ||
|  |       m_subs[1].first = i; | ||
|  |       m_last_closed_paren = 0; | ||
|  |    } | ||
|  |    void BOOST_REGEX_CALL set_base(BidiIterator pos) | ||
|  |    { | ||
|  |       m_base = pos; | ||
|  |    } | ||
|  |    BidiIterator base()const | ||
|  |    { | ||
|  |       return m_base; | ||
|  |    } | ||
|  |    void BOOST_REGEX_CALL set_first(BidiIterator i) | ||
|  |    { | ||
|  |       BOOST_ASSERT(m_subs.size() > 2); | ||
|  |       // set up prefix: | ||
|  |       m_subs[1].second = i; | ||
|  |       m_subs[1].matched = (m_subs[1].first != i); | ||
|  |       // set up $0: | ||
|  |       m_subs[2].first = i; | ||
|  |       // zero out everything else: | ||
|  |       for(size_type n = 3; n < m_subs.size(); ++n) | ||
|  |       { | ||
|  |          m_subs[n].first = m_subs[n].second = m_subs[0].second; | ||
|  |          m_subs[n].matched = false; | ||
|  |       } | ||
|  |    } | ||
|  |    void BOOST_REGEX_CALL set_first(BidiIterator i, size_type pos, bool escape_k = false) | ||
|  |    { | ||
|  |       BOOST_ASSERT(pos+2 < m_subs.size()); | ||
|  |       if(pos || escape_k) | ||
|  |       { | ||
|  |          m_subs[pos+2].first = i; | ||
|  |          if(escape_k) | ||
|  |          { | ||
|  |             m_subs[1].second = i; | ||
|  |             m_subs[1].matched = (m_subs[1].first != m_subs[1].second); | ||
|  |          } | ||
|  |       } | ||
|  |       else | ||
|  |          set_first(i); | ||
|  |    } | ||
|  |    void BOOST_REGEX_CALL maybe_assign(const match_results<BidiIterator, Allocator>& m); | ||
|  | 
 | ||
|  |    void BOOST_REGEX_CALL set_named_subs(boost::shared_ptr<named_sub_type> subs) | ||
|  |    { | ||
|  |       m_named_subs = subs; | ||
|  |    } | ||
|  | 
 | ||
|  | private: | ||
|  |    // | ||
|  |    // Error handler called when an uninitialized match_results is accessed: | ||
|  |    // | ||
|  |    static void raise_logic_error() | ||
|  |    { | ||
|  |       std::logic_error e("Attempt to access an uninitialzed boost::match_results<> class."); | ||
|  |       boost::throw_exception(e); | ||
|  |    } | ||
|  | 
 | ||
|  | 
 | ||
|  |    vector_type            m_subs;                      // subexpressions | ||
|  |    BidiIterator   m_base;                              // where the search started from | ||
|  |    sub_match<BidiIterator> m_null;                     // a null match | ||
|  |    boost::shared_ptr<named_sub_type> m_named_subs;     // Shared copy of named subs in the regex object | ||
|  |    int m_last_closed_paren;                            // Last ) to be seen - used for formatting | ||
|  |    bool m_is_singular;                                 // True if our stored iterators are singular | ||
|  | }; | ||
|  | 
 | ||
|  | template <class BidiIterator, class Allocator> | ||
|  | void BOOST_REGEX_CALL match_results<BidiIterator, Allocator>::maybe_assign(const match_results<BidiIterator, Allocator>& m) | ||
|  | { | ||
|  |    if(m_is_singular) | ||
|  |    { | ||
|  |       *this = m; | ||
|  |       return; | ||
|  |    } | ||
|  |    const_iterator p1, p2; | ||
|  |    p1 = begin(); | ||
|  |    p2 = m.begin(); | ||
|  |    // | ||
|  |    // Distances are measured from the start of *this* match, unless this isn't | ||
|  |    // a valid match in which case we use the start of the whole sequence.  Note that | ||
|  |    // no subsequent match-candidate can ever be to the left of the first match found. | ||
|  |    // This ensures that when we are using bidirectional iterators, that distances  | ||
|  |    // measured are as short as possible, and therefore as efficient as possible | ||
|  |    // to compute.  Finally note that we don't use the "matched" data member to test | ||
|  |    // whether a sub-expression is a valid match, because partial matches set this | ||
|  |    // to false for sub-expression 0. | ||
|  |    // | ||
|  |    BidiIterator l_end = this->suffix().second; | ||
|  |    BidiIterator l_base = (p1->first == l_end) ? this->prefix().first : (*this)[0].first; | ||
|  |    difference_type len1 = 0; | ||
|  |    difference_type len2 = 0; | ||
|  |    difference_type base1 = 0; | ||
|  |    difference_type base2 = 0; | ||
|  |    std::size_t i; | ||
|  |    for(i = 0; i < size(); ++i, ++p1, ++p2) | ||
|  |    { | ||
|  |       // | ||
|  |       // Leftmost takes priority over longest; handle special cases | ||
|  |       // where distances need not be computed first (an optimisation | ||
|  |       // for bidirectional iterators: ensure that we don't accidently | ||
|  |       // compute the length of the whole sequence, as this can be really | ||
|  |       // expensive). | ||
|  |       // | ||
|  |       if(p1->first == l_end) | ||
|  |       { | ||
|  |          if(p2->first != l_end) | ||
|  |          { | ||
|  |             // p2 must be better than p1, and no need to calculate | ||
|  |             // actual distances: | ||
|  |             base1 = 1; | ||
|  |             base2 = 0; | ||
|  |             break; | ||
|  |          } | ||
|  |          else | ||
|  |          { | ||
|  |             // *p1 and *p2 are either unmatched or match end-of sequence, | ||
|  |             // either way no need to calculate distances: | ||
|  |             if((p1->matched == false) && (p2->matched == true)) | ||
|  |                break; | ||
|  |             if((p1->matched == true) && (p2->matched == false)) | ||
|  |                return; | ||
|  |             continue; | ||
|  |          } | ||
|  |       } | ||
|  |       else if(p2->first == l_end) | ||
|  |       { | ||
|  |          // p1 better than p2, and no need to calculate distances: | ||
|  |          return; | ||
|  |       } | ||
|  |       base1 = ::boost::BOOST_REGEX_DETAIL_NS::distance(l_base, p1->first); | ||
|  |       base2 = ::boost::BOOST_REGEX_DETAIL_NS::distance(l_base, p2->first); | ||
|  |       BOOST_ASSERT(base1 >= 0); | ||
|  |       BOOST_ASSERT(base2 >= 0); | ||
|  |       if(base1 < base2) return; | ||
|  |       if(base2 < base1) break; | ||
|  | 
 | ||
|  |       len1 = ::boost::BOOST_REGEX_DETAIL_NS::distance((BidiIterator)p1->first, (BidiIterator)p1->second); | ||
|  |       len2 = ::boost::BOOST_REGEX_DETAIL_NS::distance((BidiIterator)p2->first, (BidiIterator)p2->second); | ||
|  |       BOOST_ASSERT(len1 >= 0); | ||
|  |       BOOST_ASSERT(len2 >= 0); | ||
|  |       if((len1 != len2) || ((p1->matched == false) && (p2->matched == true))) | ||
|  |          break; | ||
|  |       if((p1->matched == true) && (p2->matched == false)) | ||
|  |          return; | ||
|  |    } | ||
|  |    if(i == size()) | ||
|  |       return; | ||
|  |    if(base2 < base1) | ||
|  |       *this = m; | ||
|  |    else if((len2 > len1) || ((p1->matched == false) && (p2->matched == true)) ) | ||
|  |       *this = m; | ||
|  | } | ||
|  | 
 | ||
|  | template <class BidiIterator, class Allocator> | ||
|  | void swap(match_results<BidiIterator, Allocator>& a, match_results<BidiIterator, Allocator>& b) | ||
|  | { | ||
|  |    a.swap(b); | ||
|  | } | ||
|  | 
 | ||
|  | #ifndef BOOST_NO_STD_LOCALE | ||
|  | template <class charT, class traits, class BidiIterator, class Allocator> | ||
|  | std::basic_ostream<charT, traits>& | ||
|  |    operator << (std::basic_ostream<charT, traits>& os, | ||
|  |                 const match_results<BidiIterator, Allocator>& s) | ||
|  | { | ||
|  |    return (os << s.str()); | ||
|  | } | ||
|  | #else | ||
|  | template <class BidiIterator, class Allocator> | ||
|  | std::ostream& operator << (std::ostream& os, | ||
|  |                            const match_results<BidiIterator, Allocator>& s) | ||
|  | { | ||
|  |    return (os << s.str()); | ||
|  | } | ||
|  | #endif | ||
|  | 
 | ||
|  | #ifdef BOOST_MSVC | ||
|  | #pragma warning(pop) | ||
|  | #endif | ||
|  | } // namespace boost | ||
|  | 
 | ||
|  | #ifdef BOOST_MSVC | ||
|  | #pragma warning(push) | ||
|  | #pragma warning(disable: 4103) | ||
|  | #endif | ||
|  | #ifdef BOOST_HAS_ABI_HEADERS | ||
|  | #  include BOOST_ABI_SUFFIX | ||
|  | #endif | ||
|  | #ifdef BOOST_MSVC | ||
|  | #pragma warning(pop) | ||
|  | #endif | ||
|  | 
 | ||
|  | #endif | ||
|  | 
 | ||
|  | 
 |