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-rw-r--r--3rdParty/Boost/src/boost/property_tree/string_path.hpp273
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diff --git a/3rdParty/Boost/src/boost/property_tree/string_path.hpp b/3rdParty/Boost/src/boost/property_tree/string_path.hpp
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+// ----------------------------------------------------------------------------
+// Copyright (C) 2009 Sebastian Redl
+//
+// Distributed under 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)
+//
+// For more information, see www.boost.org
+// ----------------------------------------------------------------------------
+
+#ifndef BOOST_PROPERTY_TREE_STRING_PATH_HPP_INCLUDED
+#define BOOST_PROPERTY_TREE_STRING_PATH_HPP_INCLUDED
+
+#include <boost/property_tree/ptree_fwd.hpp>
+#include <boost/property_tree/id_translator.hpp>
+#include <boost/property_tree/exceptions.hpp>
+#include <boost/property_tree/detail/ptree_utils.hpp>
+
+#include <boost/static_assert.hpp>
+#include <boost/type_traits/is_same.hpp>
+#include <boost/optional.hpp>
+#include <boost/throw_exception.hpp>
+#include <algorithm>
+#include <string>
+#include <iterator>
+#include <cassert>
+
+namespace boost { namespace property_tree
+{
+ namespace detail
+ {
+ template <typename Sequence, typename Iterator>
+ void append_and_preserve_iter(Sequence &s, const Sequence &r,
+ Iterator &, std::forward_iterator_tag)
+ {
+ // Here we boldly assume that anything that is not random-access
+ // preserves validity. This is valid for the STL sequences.
+ s.insert(s.end(), r.begin(), r.end());
+ }
+ template <typename Sequence, typename Iterator>
+ void append_and_preserve_iter(Sequence &s, const Sequence &r,
+ Iterator &it,
+ std::random_access_iterator_tag)
+ {
+ // Convert the iterator to an index, and later back.
+ typename std::iterator_traits<Iterator>::difference_type idx =
+ it - s.begin();
+ s.insert(s.end(), r.begin(), r.end());
+ it = s.begin() + idx;
+ }
+
+ template <typename Sequence>
+ inline std::string dump_sequence(const Sequence &)
+ {
+ return "<undumpable sequence>";
+ }
+ inline std::string dump_sequence(const std::string &s)
+ {
+ return s;
+ }
+#ifndef BOOST_NO_STD_WSTRING
+ inline std::string dump_sequence(const std::wstring &s)
+ {
+ return narrow(s.c_str());
+ }
+#endif
+ }
+
+ /// Default path class. A path is a sequence of values. Groups of values
+ /// are separated by the separator value, which defaults to '.' cast to
+ /// the sequence's value type. The group of values is then passed to the
+ /// translator to get a key.
+ ///
+ /// If instantiated with std::string and id_translator\<std::string\>,
+ /// it accepts paths of the form "one.two.three.four".
+ ///
+ /// @tparam String Any Sequence. If the sequence does not support random-
+ /// access iteration, concatenation of paths assumes that
+ /// insertions at the end preserve iterator validity.
+ /// @tparam Translator A translator with internal_type == String.
+ template <typename String, typename Translator>
+ class string_path
+ {
+ BOOST_STATIC_ASSERT((is_same<String,
+ typename Translator::internal_type>::value));
+ public:
+ typedef typename Translator::external_type key_type;
+ typedef typename String::value_type char_type;
+
+ /// Create an empty path.
+ explicit string_path(char_type separator = char_type('.'));
+ /// Create a path by parsing the given string.
+ /// @param value A sequence, possibly with separators, that describes
+ /// the path, e.g. "one.two.three".
+ /// @param separator The separator used in parsing. Defaults to '.'.
+ /// @param tr The translator used by this path to convert the individual
+ /// parts to keys.
+ string_path(const String &value, char_type separator = char_type('.'),
+ Translator tr = Translator());
+ /// Create a path by parsing the given string.
+ /// @param value A zero-terminated array of values. Only use if zero-
+ /// termination makes sense for your type, and your
+ /// sequence supports construction from it. Intended for
+ /// string literals.
+ /// @param separator The separator used in parsing. Defaults to '.'.
+ /// @param tr The translator used by this path to convert the individual
+ /// parts to keys.
+ string_path(const char_type *value,
+ char_type separator = char_type('.'),
+ Translator tr = Translator());
+
+ // Default copying doesn't do the right thing with the iterator
+ string_path(const string_path &o);
+ string_path& operator =(const string_path &o);
+
+ /// Take a single element off the path at the front and return it.
+ key_type reduce();
+
+ /// Test if the path is empty.
+ bool empty() const;
+
+ /// Test if the path contains a single element, i.e. no separators.
+ bool single() const;
+
+ std::string dump() const {
+ return detail::dump_sequence(m_value);
+ }
+
+ /// Append a second path to this one.
+ /// @pre o's separator is the same as this one's, or o has no separators
+ string_path& operator /=(const string_path &o) {
+ // If it's single, there's no separator. This allows to do
+ // p /= "piece";
+ // even for non-default separators.
+ assert((m_separator == o.m_separator || o.empty() || o.single())
+ && "Incompatible paths.");
+ if(!o.empty()) {
+ String sub;
+ if(!this->empty()) {
+ sub.push_back(m_separator);
+ }
+ sub.insert(sub.end(), o.cstart(), o.m_value.end());
+ detail::append_and_preserve_iter(m_value, sub, m_start,
+ typename std::iterator_traits<s_iter>::iterator_category());
+ }
+ return *this;
+ }
+
+ private:
+ typedef typename String::iterator s_iter;
+ typedef typename String::const_iterator s_c_iter;
+ String m_value;
+ char_type m_separator;
+ Translator m_tr;
+ s_iter m_start;
+ s_c_iter cstart() const { return m_start; }
+ };
+
+ template <typename String, typename Translator> inline
+ string_path<String, Translator>::string_path(char_type separator)
+ : m_separator(separator), m_start(m_value.begin())
+ {}
+
+ template <typename String, typename Translator> inline
+ string_path<String, Translator>::string_path(const String &value,
+ char_type separator,
+ Translator tr)
+ : m_value(value), m_separator(separator),
+ m_tr(tr), m_start(m_value.begin())
+ {}
+
+ template <typename String, typename Translator> inline
+ string_path<String, Translator>::string_path(const char_type *value,
+ char_type separator,
+ Translator tr)
+ : m_value(value), m_separator(separator),
+ m_tr(tr), m_start(m_value.begin())
+ {}
+
+ template <typename String, typename Translator> inline
+ string_path<String, Translator>::string_path(const string_path &o)
+ : m_value(o.m_value), m_separator(o.m_separator),
+ m_tr(o.m_tr), m_start(m_value.begin())
+ {
+ std::advance(m_start, std::distance(o.m_value.begin(), o.cstart()));
+ }
+
+ template <typename String, typename Translator> inline
+ string_path<String, Translator>&
+ string_path<String, Translator>::operator =(const string_path &o)
+ {
+ m_value = o.m_value;
+ m_separator = o.m_separator;
+ m_tr = o.m_tr;
+ m_start = m_value.begin();
+ std::advance(m_start, std::distance(o.m_value.begin(), o.cstart()));
+ return *this;
+ }
+
+ template <typename String, typename Translator>
+ typename Translator::external_type string_path<String, Translator>::reduce()
+ {
+ assert(!empty() && "Reducing empty path");
+
+ s_iter next_sep = std::find(m_start, m_value.end(), m_separator);
+ String part(m_start, next_sep);
+ m_start = next_sep;
+ if(!empty()) {
+ // Unless we're at the end, skip the separator we found.
+ ++m_start;
+ }
+
+ if(optional<key_type> key = m_tr.get_value(part)) {
+ return *key;
+ }
+ BOOST_PROPERTY_TREE_THROW(ptree_bad_path("Path syntax error", *this));
+ }
+
+ template <typename String, typename Translator> inline
+ bool string_path<String, Translator>::empty() const
+ {
+ return m_start == m_value.end();
+ }
+
+ template <typename String, typename Translator> inline
+ bool string_path<String, Translator>::single() const
+ {
+ return std::find(static_cast<s_c_iter>(m_start),
+ m_value.end(), m_separator)
+ == m_value.end();
+ }
+
+ // By default, this is the path for strings. You can override this by
+ // specializing path_of for a more specific form of std::basic_string.
+ template <typename Ch, typename Traits, typename Alloc>
+ struct path_of< std::basic_string<Ch, Traits, Alloc> >
+ {
+ typedef std::basic_string<Ch, Traits, Alloc> _string;
+ typedef string_path< _string, id_translator<_string> > type;
+ };
+
+ template <typename String, typename Translator> inline
+ string_path<String, Translator> operator /(
+ string_path<String, Translator> p1,
+ const string_path<String, Translator> &p2)
+ {
+ p1 /= p2;
+ return p1;
+ }
+
+ // These shouldn't be necessary, but GCC won't find the one above.
+ template <typename String, typename Translator> inline
+ string_path<String, Translator> operator /(
+ string_path<String, Translator> p1,
+ const typename String::value_type *p2)
+ {
+ p1 /= p2;
+ return p1;
+ }
+
+ template <typename String, typename Translator> inline
+ string_path<String, Translator> operator /(
+ const typename String::value_type *p1,
+ const string_path<String, Translator> &p2)
+ {
+ string_path<String, Translator> t(p1);
+ t /= p2;
+ return t;
+ }
+
+}}
+
+#endif