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Diffstat (limited to '3rdParty/Boost/boost/regex/v4/match_results.hpp')
| -rw-r--r-- | 3rdParty/Boost/boost/regex/v4/match_results.hpp | 427 |
1 files changed, 427 insertions, 0 deletions
diff --git a/3rdParty/Boost/boost/regex/v4/match_results.hpp b/3rdParty/Boost/boost/regex/v4/match_results.hpp new file mode 100644 index 0000000..acf509f --- /dev/null +++ b/3rdParty/Boost/boost/regex/v4/match_results.hpp @@ -0,0 +1,427 @@ +/* + * + * Copyright (c) 1998-2002 + * 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 4660) +#endif + +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 re_detail::regex_iterator_traits< + BidiIterator>::difference_type difference_type; + typedef typename Allocator::size_type size_type; + typedef Allocator allocator_type; + typedef typename re_detail::regex_iterator_traits< + BidiIterator>::value_type char_type; + typedef std::basic_string<char_type> string_type; + + // construct/copy/destroy: + explicit match_results(const Allocator& a = Allocator()) +#ifndef BOOST_NO_STD_ALLOCATOR + : m_subs(a), m_base() {} +#else + : m_subs(), m_base() { (void)a; } +#endif + match_results(const match_results& m) + : m_subs(m.m_subs), m_base(m.m_base) {} + match_results& operator=(const match_results& m) + { + m_subs = m.m_subs; + m_base = m.m_base; + 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 + { + sub += 2; + if((sub < (int)m_subs.size()) && (sub > 0)) + return m_subs[sub].length(); + return 0; + } + difference_type position(size_type sub = 0) const + { + sub += 2; + if(sub < m_subs.size()) + { + const sub_match<BidiIterator>& s = m_subs[sub]; + if(s.matched || (sub == 2)) + { + return ::boost::re_detail::distance((BidiIterator)(m_base), (BidiIterator)(s.first)); + } + } + return ~static_cast<difference_type>(0); + } + string_type str(int sub = 0) const + { + 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; + } + const_reference operator[](int sub) const + { + sub += 2; + if(sub < (int)m_subs.size() && (sub >= 0)) + { + return m_subs[sub]; + } + return m_null; + } + + const_reference prefix() const + { + return (*this)[-1]; + } + + const_reference suffix() const + { + 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> + OutputIterator format(OutputIterator out, + const string_type& fmt, + match_flag_type flags = format_default) const + { + re_detail::trivial_format_traits<char_type> traits; + return re_detail::regex_format_imp(out, *this, fmt.data(), fmt.data() + fmt.size(), flags, traits); + } + string_type format(const string_type& fmt, + match_flag_type flags = format_default) const + { + string_type result; + re_detail::string_out_iterator<string_type> i(result); + re_detail::trivial_format_traits<char_type> traits; + re_detail::regex_format_imp(i, *this, fmt.data(), fmt.data() + fmt.size(), flags, traits); + return result; + } + // format with locale: + template <class OutputIterator, class RegexT> + OutputIterator format(OutputIterator out, + const string_type& fmt, + match_flag_type flags, + const RegexT& re) const + { + return ::boost::re_detail::regex_format_imp(out, *this, fmt.data(), fmt.data() + fmt.size(), flags, re.get_traits()); + } + template <class RegexT> + string_type format(const string_type& fmt, + match_flag_type flags, + const RegexT& re) const + { + string_type result; + re_detail::string_out_iterator<string_type> i(result); + ::boost::re_detail::regex_format_imp(i, *this, fmt.data(), fmt.data() + fmt.size(), flags, re.get_traits()); + return result; + } + + 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_base, that.m_base); + } + bool operator==(const match_results& that)const + { + return (m_subs == that.m_subs) && (m_base == that.m_base); + } + 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 + { + 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; + } + + void BOOST_REGEX_CALL set_second(BidiIterator i, size_type pos, bool m = true) + { + pos += 2; + BOOST_ASSERT(m_subs.size() > pos); + m_subs[pos].second = i; + m_subs[pos].matched = m; + if(pos == 2) + { + 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; + } + } + 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; + } + 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) + { + // 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) + { + BOOST_ASSERT(pos+2 < m_subs.size()); + if(pos) + m_subs[pos+2].first = i; + else + set_first(i); + } + void BOOST_REGEX_CALL maybe_assign(const match_results<BidiIterator, Allocator>& m); + + +private: + vector_type m_subs; // subexpressions + BidiIterator m_base; // where the search started from + sub_match<BidiIterator> m_null; // a null match +}; + +template <class BidiIterator, class Allocator> +void BOOST_REGEX_CALL match_results<BidiIterator, Allocator>::maybe_assign(const match_results<BidiIterator, Allocator>& m) +{ + 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::re_detail::distance(l_base, p1->first); + base2 = ::boost::re_detail::distance(l_base, p2->first); + BOOST_ASSERT(base1 >= 0); + BOOST_ASSERT(base2 >= 0); + if(base1 < base2) return; + if(base2 < base1) break; + + len1 = ::boost::re_detail::distance((BidiIterator)p1->first, (BidiIterator)p1->second); + len2 = ::boost::re_detail::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 + + |