--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/imgtools/imglib/boostlibrary/boost/regex/v4/match_results.hpp Fri Jun 25 18:11:34 2010 +0800
@@ -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
+
+