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+/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
+// basic_xml_grammar.ipp:
+
+// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
+// Use, modification and distribution is 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)
+
+// See http://www.boost.org for updates, documentation, and revision history.
+
+#if (defined _MSC_VER) && (_MSC_VER == 1200)
+# pragma warning (disable : 4786) // too long name, harmless warning
+#endif
+
+#include <istream>
+#include <algorithm>
+#include <boost/config.hpp> // BOOST_DEDUCED_TYPENAME
+
+#ifdef BOOST_MSVC
+# pragma warning(push)
+# pragma warning(disable : 4511 4512)
+#endif
+
+// spirit stuff
+#include <boost/spirit/include/classic_operators.hpp>
+#include <boost/spirit/include/classic_actions.hpp>
+#include <boost/spirit/include/classic_numerics.hpp>
+
+#ifdef BOOST_MSVC
+#pragma warning(pop)
+#endif
+
+// for head_iterator test
+//#include <boost/bind.hpp>
+#include <boost/function.hpp>
+#include <boost/serialization/pfto.hpp>
+
+#include <boost/io/ios_state.hpp>
+#include <boost/serialization/throw_exception.hpp>
+#include <boost/archive/impl/basic_xml_grammar.hpp>
+#include <boost/archive/xml_archive_exception.hpp>
+#include <boost/archive/basic_xml_archive.hpp>
+#include <boost/archive/iterators/xml_unescape.hpp>
+
+using namespace boost::spirit::classic;
+
+namespace boost {
+namespace archive {
+
+/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
+// template code for basic_xml_grammar of both wchar_t and char types
+
+namespace xml { // anonymous
+
+#ifdef BOOST_MSVC
+# pragma warning(push)
+# pragma warning(disable : 4511 4512)
+#endif
+
+template<class T>
+struct assign_impl {
+ T & t;
+ void operator()(const T t_) const {
+ t = t_;
+ }
+ assign_impl(T & t_)
+ : t(t_)
+ {}
+};
+
+template<>
+struct assign_impl<std::string> {
+ std::string & t;
+ void operator()(
+ std::string::const_iterator b,
+ std::string::const_iterator e
+ ) const {
+ t.resize(0);
+ while(b != e){
+ t += * b;
+ ++b;
+ }
+ }
+ assign_impl<std::string> & operator=(
+ assign_impl<std::string> & rhs
+ );
+ assign_impl(std::string & t_)
+ : t(t_)
+ {}
+};
+
+#ifndef BOOST_NO_STD_WSTRING
+template<>
+struct assign_impl<std::wstring> {
+ std::wstring & t;
+ void operator()(
+ std::wstring::const_iterator b,
+ std::wstring::const_iterator e
+ ) const {
+ t.resize(0);
+ while(b != e){
+ t += * b;
+ ++b;
+ }
+ }
+ assign_impl(std::wstring & t_)
+ : t(t_)
+ {}
+};
+#endif
+
+template<class T>
+assign_impl<T> assign_object(T &t){
+ return assign_impl<T>(t);
+}
+
+struct assign_level {
+ tracking_type & tracking_level;
+ void operator()(const unsigned int tracking_level_) const {
+ tracking_level = (0 == tracking_level_) ? false : true;
+ }
+ assign_level(tracking_type & tracking_level_)
+ : tracking_level(tracking_level_)
+ {}
+};
+
+template<class String, class Iterator>
+struct append_string {
+ String & contents;
+ void operator()(Iterator start, Iterator end) const {
+ #if 0
+ typedef boost::archive::iterators::xml_unescape<Iterator> translator;
+ contents.append(
+ translator(BOOST_MAKE_PFTO_WRAPPER(start)),
+ translator(BOOST_MAKE_PFTO_WRAPPER(end))
+ );
+ #endif
+ contents.append(start, end);
+ }
+ append_string(String & contents_)
+ : contents(contents_)
+ {}
+};
+
+template<class String>
+struct append_char {
+ String & contents;
+ void operator()(const unsigned int char_value) const {
+ const BOOST_DEDUCED_TYPENAME String::value_type z = char_value;
+ contents += z;
+ }
+ append_char(String & contents_)
+ : contents(contents_)
+ {}
+};
+
+template<class String, unsigned int c>
+struct append_lit {
+ String & contents;
+ template<class X, class Y>
+ void operator()(const X & /*x*/, const Y & /*y*/) const {
+ const BOOST_DEDUCED_TYPENAME String::value_type z = c;
+ contents += z;
+ }
+ append_lit(String & contents_)
+ : contents(contents_)
+ {}
+};
+
+#ifdef BOOST_MSVC
+#pragma warning(pop)
+#endif
+
+} // namespace anonymous
+
+template<class CharType>
+bool basic_xml_grammar<CharType>::my_parse(
+ BOOST_DEDUCED_TYPENAME basic_xml_grammar<CharType>::IStream & is,
+ const rule_t & rule_,
+ CharType delimiter
+) const {
+ if(is.fail()){
+ boost::serialization::throw_exception(
+ archive_exception(archive_exception::input_stream_error)
+ );
+ }
+
+ boost::io::ios_flags_saver ifs(is);
+ is >> std::noskipws;
+
+ std::basic_string<CharType> arg;
+
+ CharType val;
+ do{
+ BOOST_DEDUCED_TYPENAME basic_xml_grammar<CharType>::IStream::int_type
+ result = is.get();
+ if(is.fail())
+ return false;
+ val = static_cast<CharType>(result);
+ arg += val;
+ }
+ while(val != delimiter);
+
+ // read just one more character. This will be the newline after the tag
+ // this is so that the next operation will return fail if the archive
+ // is terminated. This will permit the archive to be used for debug
+ // and transaction data logging in the standard way.
+
+ parse_info<BOOST_DEDUCED_TYPENAME std::basic_string<CharType>::iterator>
+ result = boost::spirit::classic::parse(arg.begin(), arg.end(), rule_);
+ return result.hit;
+}
+
+template<class CharType>
+bool basic_xml_grammar<CharType>::parse_start_tag(
+ BOOST_DEDUCED_TYPENAME basic_xml_grammar<CharType>::IStream & is
+){
+ rv.class_name.resize(0);
+ return my_parse(is, STag);
+}
+
+template<class CharType>
+bool basic_xml_grammar<CharType>::parse_end_tag(IStream & is) const {
+ return my_parse(is, ETag);
+}
+
+template<class CharType>
+bool basic_xml_grammar<CharType>::parse_string(IStream & is, StringType & s){
+ rv.contents.resize(0);
+ bool result = my_parse(is, content, '<');
+ // note: unget caused a problem with dinkumware. replace with
+ // is.unget();
+ // putback another dilimiter instead
+ is.putback('<');
+ if(result)
+ s = rv.contents;
+ return result;
+}
+
+template<class CharType>
+basic_xml_grammar<CharType>::basic_xml_grammar(){
+ init_chset();
+
+ S =
+ +(Sch)
+ ;
+
+ // refactoring to workaround template depth on darwin
+ NameHead = (Letter | '_' | ':');
+ NameTail = *NameChar ;
+ Name =
+ NameHead >> NameTail
+ ;
+
+ Eq =
+ !S >> '=' >> !S
+ ;
+
+ AttributeList =
+ *(S >> Attribute)
+ ;
+
+ STag =
+ !S
+ >> '<'
+ >> Name [xml::assign_object(rv.object_name)]
+ >> AttributeList
+ >> !S
+ >> '>'
+ ;
+
+ ETag =
+ !S
+ >> "</"
+ >> Name [xml::assign_object(rv.object_name)]
+ >> !S
+ >> '>'
+ ;
+
+ // refactoring to workaround template depth on darwin
+ CharDataChars = +(anychar_p - chset_p(L"&<"));
+ CharData =
+ CharDataChars [
+ xml::append_string<
+ StringType,
+ BOOST_DEDUCED_TYPENAME std::basic_string<CharType>::const_iterator
+ >(rv.contents)
+ ]
+ ;
+
+ // slight factoring works around ICE in msvc 6.0
+ CharRef1 =
+ str_p(L"&#") >> uint_p [xml::append_char<StringType>(rv.contents)] >> L';'
+ ;
+ CharRef2 =
+ str_p(L"&#x") >> hex_p [xml::append_char<StringType>(rv.contents)] >> L';'
+ ;
+ CharRef = CharRef1 | CharRef2 ;
+
+ AmpRef = str_p(L"&amp;")[xml::append_lit<StringType, L'&'>(rv.contents)];
+ LTRef = str_p(L"&lt;")[xml::append_lit<StringType, L'<'>(rv.contents)];
+ GTRef = str_p(L"&gt;")[xml::append_lit<StringType, L'>'>(rv.contents)];
+ AposRef = str_p(L"&apos;")[xml::append_lit<StringType, L'\''>(rv.contents)];
+ QuoteRef = str_p(L"&quot;")[xml::append_lit<StringType, L'"'>(rv.contents)];
+
+ Reference =
+ AmpRef
+ | LTRef
+ | GTRef
+ | AposRef
+ | QuoteRef
+ | CharRef
+ ;
+
+ content =
+ L"<" // should be end_p
+ | +(Reference | CharData) >> L"<"
+ ;
+
+ ClassIDAttribute =
+ str_p(BOOST_ARCHIVE_XML_CLASS_ID()) >> NameTail
+ >> Eq
+ >> L'"'
+ >> int_p [xml::assign_object(rv.class_id)]
+ >> L'"'
+ ;
+
+ ObjectIDAttribute = (
+ str_p(BOOST_ARCHIVE_XML_OBJECT_ID())
+ |
+ str_p(BOOST_ARCHIVE_XML_OBJECT_REFERENCE())
+ )
+ >> NameTail
+ >> Eq
+ >> L'"'
+ >> L'_'
+ >> uint_p [xml::assign_object(rv.object_id)]
+ >> L'"'
+ ;
+
+ AmpName = str_p(L"&amp;")[xml::append_lit<StringType, L'&'>(rv.class_name)];
+ LTName = str_p(L"&lt;")[xml::append_lit<StringType, L'<'>(rv.class_name)];
+ GTName = str_p(L"&gt;")[xml::append_lit<StringType, L'>'>(rv.class_name)];
+ ClassNameChar =
+ AmpName
+ | LTName
+ | GTName
+ | (anychar_p - chset_p(L"\"")) [xml::append_char<StringType>(rv.class_name)]
+ ;
+
+ ClassName =
+ * ClassNameChar
+ ;
+
+ ClassNameAttribute =
+ str_p(BOOST_ARCHIVE_XML_CLASS_NAME())
+ >> Eq
+ >> L'"'
+ >> ClassName
+ >> L'"'
+ ;
+
+ TrackingAttribute =
+ str_p(BOOST_ARCHIVE_XML_TRACKING())
+ >> Eq
+ >> L'"'
+ >> uint_p [xml::assign_level(rv.tracking_level)]
+ >> L'"'
+ ;
+
+ VersionAttribute =
+ str_p(BOOST_ARCHIVE_XML_VERSION())
+ >> Eq
+ >> L'"'
+ >> uint_p [xml::assign_object(rv.version)]
+ >> L'"'
+ ;
+
+ UnusedAttribute =
+ Name
+ >> Eq
+ >> L'"'
+ >> !CharData
+ >> L'"'
+ ;
+
+ Attribute =
+ ClassIDAttribute
+ | ObjectIDAttribute
+ | ClassNameAttribute
+ | TrackingAttribute
+ | VersionAttribute
+ | UnusedAttribute
+ ;
+
+ XMLDeclChars = *(anychar_p - chset_p(L"?>"));
+ XMLDecl =
+ !S
+ >> str_p(L"<?xml")
+ >> S
+ >> str_p(L"version")
+ >> Eq
+ >> str_p(L"\"1.0\"")
+ >> XMLDeclChars
+ >> !S
+ >> str_p(L"?>")
+ ;
+
+ DocTypeDeclChars = *(anychar_p - chset_p(L">"));
+ DocTypeDecl =
+ !S
+ >> str_p(L"<!DOCTYPE")
+ >> DocTypeDeclChars
+ >> L'>'
+ ;
+
+ SignatureAttribute =
+ str_p(L"signature")
+ >> Eq
+ >> L'"'
+ >> Name [xml::assign_object(rv.class_name)]
+ >> L'"'
+ ;
+
+ SerializationWrapper =
+ !S
+ >> str_p(L"<boost_serialization")
+ >> S
+ >> ( (SignatureAttribute >> S >> VersionAttribute)
+ | (VersionAttribute >> S >> SignatureAttribute)
+ )
+ >> !S
+ >> L'>'
+ ;
+}
+
+template<class CharType>
+void basic_xml_grammar<CharType>::init(IStream & is){
+ init_chset();
+ if(! my_parse(is, XMLDecl))
+ boost::serialization::throw_exception(
+ xml_archive_exception(xml_archive_exception::xml_archive_parsing_error)
+ );
+ if(! my_parse(is, DocTypeDecl))
+ boost::serialization::throw_exception(
+ xml_archive_exception(xml_archive_exception::xml_archive_parsing_error)
+ );
+ if(! my_parse(is, SerializationWrapper))
+ boost::serialization::throw_exception(
+ xml_archive_exception(xml_archive_exception::xml_archive_parsing_error)
+ );
+ if(! std::equal(rv.class_name.begin(), rv.class_name.end(), BOOST_ARCHIVE_SIGNATURE()))
+ boost::serialization::throw_exception(
+ archive_exception(archive_exception::invalid_signature)
+ );
+}
+
+template<class CharType>
+void basic_xml_grammar<CharType>::windup(IStream & is){
+ if(is.fail())
+ return;
+ // uh-oh - don't throw exception from code called by a destructor !
+ // so just ignore any failure.
+ my_parse(is, ETag);
+}
+
+} // namespace archive
+} // namespace boost