Added boost header

test/external/boost/archive/iterators/xml_unescape.hpp

@@ -0,0 +1,128 @@
+#ifndef BOOST_ARCHIVE_ITERATORS_XML_UNESCAPE_HPP
+#define BOOST_ARCHIVE_ITERATORS_XML_UNESCAPE_HPP
+
+// MS compatible compilers support #pragma once
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
+// xml_unescape.hpp
+
+// (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.
+
+#include <boost/assert.hpp>
+
+#include <boost/config.hpp> // for BOOST_DEDUCED_TYPENAME
+
+#include <boost/serialization/throw_exception.hpp>
+#include <boost/serialization/pfto.hpp>
+
+#include <boost/archive/iterators/unescape.hpp>
+#include <boost/archive/iterators/dataflow_exception.hpp>
+
+namespace boost { 
+namespace archive {
+namespace iterators {
+
+/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
+// replace &??? xml escape sequences with the corresponding characters
+template<class Base>
+class xml_unescape 
+    : public unescape<xml_unescape<Base>, Base>
+{
+    friend class boost::iterator_core_access;
+    typedef xml_unescape<Base> this_t;
+    typedef unescape<this_t, Base> super_t;
+    typedef BOOST_DEDUCED_TYPENAME boost::iterator_reference<this_t> reference_type;
+
+    reference_type dereference() const {
+        return unescape<xml_unescape<Base>, Base>::dereference();
+    }
+public:
+    // workaround msvc 7.1 ICU crash
+    #if defined(BOOST_MSVC)
+        typedef int value_type;
+    #else
+        typedef BOOST_DEDUCED_TYPENAME this_t::value_type value_type;
+    #endif
+
+    void drain_residue(const char *literal);
+    value_type drain();
+
+    template<class T>
+    xml_unescape(BOOST_PFTO_WRAPPER(T) start) : 
+        super_t(Base(BOOST_MAKE_PFTO_WRAPPER(static_cast< T >(start))))
+    {}
+    // intel 7.1 doesn't like default copy constructor
+    xml_unescape(const xml_unescape & rhs) : 
+        super_t(rhs.base_reference())
+    {}
+};
+
+template<class Base>
+void xml_unescape<Base>::drain_residue(const char * literal){
+    do{
+        if(* literal != * ++(this->base_reference()))
+            boost::serialization::throw_exception(
+                dataflow_exception(
+                    dataflow_exception::invalid_xml_escape_sequence
+                )
+            );
+    }
+    while('\0' != * ++literal);
+}
+
+// note key constraint on this function is that can't "look ahead" any
+// more than necessary into base iterator.  Doing so would alter the base
+// iterator refenence which would make subsequent iterator comparisons
+// incorrect and thereby break the composiblity of iterators.
+template<class Base>
+BOOST_DEDUCED_TYPENAME xml_unescape<Base>::value_type 
+//int 
+xml_unescape<Base>::drain(){
+    value_type retval = * this->base_reference();
+    if('&' != retval){
+        return retval;
+    }
+    retval = * ++(this->base_reference());
+    switch(retval){
+    case 'l': // &lt;
+        drain_residue("t;");
+        retval = '<';
+        break;
+    case 'g': // &gt;
+        drain_residue("t;");
+        retval = '>';
+        break;
+    case 'a':
+        retval = * ++(this->base_reference());
+        switch(retval){
+        case 'p': // &apos;
+            drain_residue("os;");
+            retval = '\'';
+            break;
+        case 'm': // &amp;
+            drain_residue("p;");
+            retval = '&';
+            break;
+        }
+        break;
+    case 'q':
+        drain_residue("uot;");
+        retval = '"';
+        break;
+    }
+    return retval;
+}
+
+} // namespace iterators
+} // namespace archive
+} // namespace boost
+
+#endif // BOOST_ARCHIVE_ITERATORS_XML_UNESCAPE_HPP