--- /dev/null
+#ifndef JSON_SPIRIT_READER_TEMPLATE\r
+#define JSON_SPIRIT_READER_TEMPLATE\r
+\r
+// Copyright John W. Wilkinson 2007 - 2011\r
+// Distributed under the MIT License, see accompanying file LICENSE.txt\r
+\r
+// json spirit version 4.05\r
+\r
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)\r
+# pragma once\r
+#endif\r
+\r
+#include "json_spirit_value.h"\r
+#include "json_spirit_error_position.h"\r
+\r
+#include "common/utf8.h"\r
+\r
+#define BOOST_SPIRIT_THREADSAFE // uncomment for multithreaded use, requires linking to boost.thread\r
+\r
+#include <boost/bind.hpp>\r
+#include <boost/function.hpp>\r
+#include <boost/version.hpp>\r
+\r
+#if BOOST_VERSION >= 103800\r
+ #include <boost/spirit/include/classic_core.hpp>\r
+ #include <boost/spirit/include/classic_confix.hpp>\r
+ #include <boost/spirit/include/classic_escape_char.hpp>\r
+ #include <boost/spirit/include/classic_multi_pass.hpp>\r
+ #include <boost/spirit/include/classic_position_iterator.hpp>\r
+ #define spirit_namespace boost::spirit::classic\r
+#else\r
+ #include <boost/spirit/core.hpp>\r
+ #include <boost/spirit/utility/confix.hpp>\r
+ #include <boost/spirit/utility/escape_char.hpp>\r
+ #include <boost/spirit/iterator/multi_pass.hpp>\r
+ #include <boost/spirit/iterator/position_iterator.hpp>\r
+ #define spirit_namespace boost::spirit\r
+#endif\r
+\r
+namespace json_spirit\r
+{\r
+ const spirit_namespace::int_parser < boost::int64_t > int64_p = spirit_namespace::int_parser < boost::int64_t >();\r
+ const spirit_namespace::uint_parser< boost::uint64_t > uint64_p = spirit_namespace::uint_parser< boost::uint64_t >();\r
+\r
+ template< class Iter_type >\r
+ bool is_eq( Iter_type first, Iter_type last, const char* c_str )\r
+ {\r
+ for( Iter_type i = first; i != last; ++i, ++c_str )\r
+ {\r
+ if( *c_str == 0 ) return false;\r
+\r
+ if( *i != *c_str ) return false;\r
+ }\r
+\r
+ return true;\r
+ }\r
+\r
+ template< class Char_type >\r
+ Char_type hex_to_num( const Char_type c )\r
+ {\r
+ if( ( c >= '0' ) && ( c <= '9' ) ) return c - '0';\r
+ if( ( c >= 'a' ) && ( c <= 'f' ) ) return c - 'a' + 10;\r
+ if( ( c >= 'A' ) && ( c <= 'F' ) ) return c - 'A' + 10;\r
+ return 0;\r
+ }\r
+\r
+ template< class Char_type, class Iter_type >\r
+ Char_type hex_str_to_char( Iter_type& begin )\r
+ {\r
+ const Char_type c1( *( ++begin ) );\r
+ const Char_type c2( *( ++begin ) );\r
+\r
+ return ( hex_to_num( c1 ) << 4 ) + hex_to_num( c2 );\r
+ } \r
+\r
+ template< class String_type, class Iter_type >\r
+ String_type unicode_str_to_utf8( Iter_type& begin );\r
+\r
+ template<>\r
+ std::string unicode_str_to_utf8( std::string::const_iterator & begin )\r
+ {\r
+ typedef std::string::value_type Char_type;\r
+\r
+ const Char_type c1( *( ++begin ) );\r
+ const Char_type c2( *( ++begin ) );\r
+ const Char_type c3( *( ++begin ) );\r
+ const Char_type c4( *( ++begin ) );\r
+\r
+ unsigned long uc = ( hex_to_num( c1 ) << 12 ) + \r
+ ( hex_to_num( c2 ) << 8 ) + \r
+ ( hex_to_num( c3 ) << 4 ) + \r
+ hex_to_num( c4 );\r
+\r
+ unsigned char buf[7]; // MAX_UTF8_SZ is 6 (see src/common/utf8.c)\r
+ int r = encode_utf8(uc, buf);\r
+ if (r >= 0) {\r
+ return std::string(reinterpret_cast<char *>(buf), r);\r
+ }\r
+ return std::string("_");\r
+ }\r
+\r
+ template< class String_type >\r
+ void append_esc_char_and_incr_iter( String_type& s, \r
+ typename String_type::const_iterator& begin, \r
+ typename String_type::const_iterator end )\r
+ {\r
+ typedef typename String_type::value_type Char_type;\r
+ \r
+ const Char_type c2( *begin );\r
+\r
+ switch( c2 )\r
+ {\r
+ case 't': s += '\t'; break;\r
+ case 'b': s += '\b'; break;\r
+ case 'f': s += '\f'; break;\r
+ case 'n': s += '\n'; break;\r
+ case 'r': s += '\r'; break;\r
+ case '\\': s += '\\'; break;\r
+ case '/': s += '/'; break;\r
+ case '"': s += '"'; break;\r
+ case 'x': \r
+ {\r
+ if( end - begin >= 3 ) // expecting "xHH..."\r
+ {\r
+ s += hex_str_to_char< Char_type >( begin ); \r
+ }\r
+ break;\r
+ }\r
+ case 'u': \r
+ {\r
+ if( end - begin >= 5 ) // expecting "uHHHH..."\r
+ {\r
+ s += unicode_str_to_utf8< String_type >( begin );\r
+ }\r
+ break;\r
+ }\r
+ }\r
+ }\r
+\r
+ template< class String_type >\r
+ String_type substitute_esc_chars( typename String_type::const_iterator begin, \r
+ typename String_type::const_iterator end )\r
+ {\r
+ typedef typename String_type::const_iterator Iter_type;\r
+\r
+ if( end - begin < 2 ) return String_type( begin, end );\r
+\r
+ String_type result;\r
+ \r
+ result.reserve( end - begin );\r
+\r
+ const Iter_type end_minus_1( end - 1 );\r
+\r
+ Iter_type substr_start = begin;\r
+ Iter_type i = begin;\r
+\r
+ for( ; i < end_minus_1; ++i )\r
+ {\r
+ if( *i == '\\' )\r
+ {\r
+ result.append( substr_start, i );\r
+\r
+ ++i; // skip the '\'\r
+ \r
+ append_esc_char_and_incr_iter( result, i, end );\r
+\r
+ substr_start = i + 1;\r
+ }\r
+ }\r
+\r
+ result.append( substr_start, end );\r
+\r
+ return result;\r
+ }\r
+\r
+ template< class String_type >\r
+ String_type get_str_( typename String_type::const_iterator begin, \r
+ typename String_type::const_iterator end )\r
+ {\r
+ assert( end - begin >= 2 );\r
+\r
+ typedef typename String_type::const_iterator Iter_type;\r
+\r
+ Iter_type str_without_quotes( ++begin );\r
+ Iter_type end_without_quotes( --end );\r
+\r
+ return substitute_esc_chars< String_type >( str_without_quotes, end_without_quotes );\r
+ }\r
+\r
+ inline std::string get_str( std::string::const_iterator begin, std::string::const_iterator end )\r
+ {\r
+ return get_str_< std::string >( begin, end );\r
+ }\r
+\r
+// Need this guard else it tries to instantiate unicode_str_to_utf8 with a\r
+// std::wstring, which isn't presently implemented\r
+#if defined( JSON_SPIRIT_WMVALUE_ENABLED ) && !defined( BOOST_NO_STD_WSTRING )\r
+ inline std::wstring get_str( std::wstring::const_iterator begin, std::wstring::const_iterator end )\r
+ {\r
+ return get_str_< std::wstring >( begin, end );\r
+ }\r
+#endif\r
+\r
+ template< class String_type, class Iter_type >\r
+ String_type get_str( Iter_type begin, Iter_type end )\r
+ {\r
+ const String_type tmp( begin, end ); // convert multipass iterators to string iterators\r
+\r
+ return get_str( tmp.begin(), tmp.end() );\r
+ }\r
+\r
+ // this class's methods get called by the spirit parse resulting\r
+ // in the creation of a JSON object or array\r
+ //\r
+ // NB Iter_type could be a std::string iterator, wstring iterator, a position iterator or a multipass iterator\r
+ //\r
+ template< class Value_type, class Iter_type >\r
+ class Semantic_actions \r
+ {\r
+ public:\r
+\r
+ typedef typename Value_type::Config_type Config_type;\r
+ typedef typename Config_type::String_type String_type;\r
+ typedef typename Config_type::Object_type Object_type;\r
+ typedef typename Config_type::Array_type Array_type;\r
+ typedef typename String_type::value_type Char_type;\r
+\r
+ Semantic_actions( Value_type& value )\r
+ : value_( value )\r
+ , current_p_( 0 )\r
+ {\r
+ }\r
+\r
+ void begin_obj( Char_type c )\r
+ {\r
+ assert( c == '{' );\r
+\r
+ begin_compound< Object_type >();\r
+ }\r
+\r
+ void end_obj( Char_type c )\r
+ {\r
+ assert( c == '}' );\r
+\r
+ end_compound();\r
+ }\r
+\r
+ void begin_array( Char_type c )\r
+ {\r
+ assert( c == '[' );\r
+ \r
+ begin_compound< Array_type >();\r
+ }\r
+\r
+ void end_array( Char_type c )\r
+ {\r
+ assert( c == ']' );\r
+\r
+ end_compound();\r
+ }\r
+\r
+ void new_name( Iter_type begin, Iter_type end )\r
+ {\r
+ assert( current_p_->type() == obj_type );\r
+\r
+ name_ = get_str< String_type >( begin, end );\r
+ }\r
+\r
+ void new_str( Iter_type begin, Iter_type end )\r
+ {\r
+ add_to_current( get_str< String_type >( begin, end ) );\r
+ }\r
+\r
+ void new_true( Iter_type begin, Iter_type end )\r
+ {\r
+ assert( is_eq( begin, end, "true" ) );\r
+\r
+ add_to_current( true );\r
+ }\r
+\r
+ void new_false( Iter_type begin, Iter_type end )\r
+ {\r
+ assert( is_eq( begin, end, "false" ) );\r
+\r
+ add_to_current( false );\r
+ }\r
+\r
+ void new_null( Iter_type begin, Iter_type end )\r
+ {\r
+ assert( is_eq( begin, end, "null" ) );\r
+\r
+ add_to_current( Value_type() );\r
+ }\r
+\r
+ void new_int( boost::int64_t i )\r
+ {\r
+ add_to_current( i );\r
+ }\r
+\r
+ void new_uint64( boost::uint64_t ui )\r
+ {\r
+ add_to_current( ui );\r
+ }\r
+\r
+ void new_real( double d )\r
+ {\r
+ add_to_current( d );\r
+ }\r
+\r
+ private:\r
+\r
+ Semantic_actions& operator=( const Semantic_actions& ); \r
+ // to prevent "assignment operator could not be generated" warning\r
+\r
+ Value_type* add_first( const Value_type& value )\r
+ {\r
+ assert( current_p_ == 0 );\r
+\r
+ value_ = value;\r
+ current_p_ = &value_;\r
+ return current_p_;\r
+ }\r
+\r
+ template< class Array_or_obj >\r
+ void begin_compound()\r
+ {\r
+ if( current_p_ == 0 )\r
+ {\r
+ add_first( Array_or_obj() );\r
+ }\r
+ else\r
+ {\r
+ stack_.push_back( current_p_ );\r
+\r
+ Array_or_obj new_array_or_obj; // avoid copy by building new array or object in place\r
+\r
+ current_p_ = add_to_current( new_array_or_obj );\r
+ }\r
+ }\r
+\r
+ void end_compound()\r
+ {\r
+ if( current_p_ != &value_ )\r
+ {\r
+ current_p_ = stack_.back();\r
+ \r
+ stack_.pop_back();\r
+ } \r
+ }\r
+\r
+ Value_type* add_to_current( const Value_type& value )\r
+ {\r
+ if( current_p_ == 0 )\r
+ {\r
+ return add_first( value );\r
+ }\r
+ else if( current_p_->type() == array_type )\r
+ {\r
+ current_p_->get_array().push_back( value );\r
+\r
+ return ¤t_p_->get_array().back(); \r
+ }\r
+ \r
+ assert( current_p_->type() == obj_type );\r
+\r
+ return &Config_type::add( current_p_->get_obj(), name_, value );\r
+ }\r
+\r
+ Value_type& value_; // this is the object or array that is being created\r
+ Value_type* current_p_; // the child object or array that is currently being constructed\r
+\r
+ std::vector< Value_type* > stack_; // previous child objects and arrays\r
+\r
+ String_type name_; // of current name/value pair\r
+ };\r
+\r
+ template< typename Iter_type >\r
+ void throw_error( spirit_namespace::position_iterator< Iter_type > i, const std::string& reason )\r
+ {\r
+ throw Error_position( i.get_position().line, i.get_position().column, reason );\r
+ }\r
+\r
+ template< typename Iter_type >\r
+ void throw_error( Iter_type i, const std::string& reason )\r
+ {\r
+ throw reason;\r
+ }\r
+\r
+ // the spirit grammer \r
+ //\r
+ template< class Value_type, class Iter_type >\r
+ class Json_grammer : public spirit_namespace::grammar< Json_grammer< Value_type, Iter_type > >\r
+ {\r
+ public:\r
+\r
+ typedef Semantic_actions< Value_type, Iter_type > Semantic_actions_t;\r
+\r
+ Json_grammer( Semantic_actions_t& semantic_actions )\r
+ : actions_( semantic_actions )\r
+ {\r
+ }\r
+\r
+ static void throw_not_value( Iter_type begin, Iter_type end )\r
+ {\r
+ throw_error( begin, "not a value" );\r
+ }\r
+\r
+ static void throw_not_array( Iter_type begin, Iter_type end )\r
+ {\r
+ throw_error( begin, "not an array" );\r
+ }\r
+\r
+ static void throw_not_object( Iter_type begin, Iter_type end )\r
+ {\r
+ throw_error( begin, "not an object" );\r
+ }\r
+\r
+ static void throw_not_pair( Iter_type begin, Iter_type end )\r
+ {\r
+ throw_error( begin, "not a pair" );\r
+ }\r
+\r
+ static void throw_not_colon( Iter_type begin, Iter_type end )\r
+ {\r
+ throw_error( begin, "no colon in pair" );\r
+ }\r
+\r
+ static void throw_not_string( Iter_type begin, Iter_type end )\r
+ {\r
+ throw_error( begin, "not a string" );\r
+ }\r
+\r
+ template< typename ScannerT >\r
+ class definition\r
+ {\r
+ public:\r
+\r
+ definition( const Json_grammer& self )\r
+ {\r
+ using namespace spirit_namespace;\r
+\r
+ typedef typename Value_type::String_type::value_type Char_type;\r
+\r
+ // first we convert the semantic action class methods to functors with the \r
+ // parameter signature expected by spirit\r
+\r
+ typedef boost::function< void( Char_type ) > Char_action;\r
+ typedef boost::function< void( Iter_type, Iter_type ) > Str_action;\r
+ typedef boost::function< void( double ) > Real_action;\r
+ typedef boost::function< void( boost::int64_t ) > Int_action;\r
+ typedef boost::function< void( boost::uint64_t ) > Uint64_action;\r
+\r
+ Char_action begin_obj ( boost::bind( &Semantic_actions_t::begin_obj, &self.actions_, _1 ) );\r
+ Char_action end_obj ( boost::bind( &Semantic_actions_t::end_obj, &self.actions_, _1 ) );\r
+ Char_action begin_array( boost::bind( &Semantic_actions_t::begin_array, &self.actions_, _1 ) );\r
+ Char_action end_array ( boost::bind( &Semantic_actions_t::end_array, &self.actions_, _1 ) );\r
+ Str_action new_name ( boost::bind( &Semantic_actions_t::new_name, &self.actions_, _1, _2 ) );\r
+ Str_action new_str ( boost::bind( &Semantic_actions_t::new_str, &self.actions_, _1, _2 ) );\r
+ Str_action new_true ( boost::bind( &Semantic_actions_t::new_true, &self.actions_, _1, _2 ) );\r
+ Str_action new_false ( boost::bind( &Semantic_actions_t::new_false, &self.actions_, _1, _2 ) );\r
+ Str_action new_null ( boost::bind( &Semantic_actions_t::new_null, &self.actions_, _1, _2 ) );\r
+ Real_action new_real ( boost::bind( &Semantic_actions_t::new_real, &self.actions_, _1 ) );\r
+ Int_action new_int ( boost::bind( &Semantic_actions_t::new_int, &self.actions_, _1 ) );\r
+ Uint64_action new_uint64 ( boost::bind( &Semantic_actions_t::new_uint64, &self.actions_, _1 ) );\r
+\r
+ // actual grammer\r
+\r
+ json_\r
+ = value_ | eps_p[ &throw_not_value ]\r
+ ;\r
+\r
+ value_\r
+ = string_[ new_str ] \r
+ | number_ \r
+ | object_ \r
+ | array_ \r
+ | str_p( "true" ) [ new_true ] \r
+ | str_p( "false" )[ new_false ] \r
+ | str_p( "null" ) [ new_null ]\r
+ ;\r
+\r
+ object_ \r
+ = ch_p('{')[ begin_obj ]\r
+ >> !members_\r
+ >> ( ch_p('}')[ end_obj ] | eps_p[ &throw_not_object ] )\r
+ ;\r
+\r
+ members_\r
+ = pair_ >> *( ',' >> pair_ | ch_p(',') )\r
+ ;\r
+\r
+ pair_\r
+ = string_[ new_name ]\r
+ >> ( ':' | eps_p[ &throw_not_colon ] )\r
+ >> ( value_ | eps_p[ &throw_not_value ] )\r
+ ;\r
+\r
+ array_\r
+ = ch_p('[')[ begin_array ]\r
+ >> !elements_\r
+ >> ( ch_p(']')[ end_array ] | eps_p[ &throw_not_array ] )\r
+ ;\r
+\r
+ elements_\r
+ = value_ >> *( ',' >> value_ | ch_p(',') )\r
+ ;\r
+\r
+ string_ \r
+ = lexeme_d // this causes white space inside a string to be retained\r
+ [\r
+ confix_p\r
+ ( \r
+ '"', \r
+ *lex_escape_ch_p,\r
+ '"'\r
+ ) \r
+ ]\r
+ ;\r
+\r
+ number_\r
+ = strict_real_p[ new_real ] \r
+ | int64_p [ new_int ]\r
+ | uint64_p [ new_uint64 ]\r
+ ;\r
+ }\r
+\r
+ spirit_namespace::rule< ScannerT > json_, object_, members_, pair_, array_, elements_, value_, string_, number_;\r
+\r
+ const spirit_namespace::rule< ScannerT >& start() const { return json_; }\r
+ };\r
+\r
+ private:\r
+\r
+ Json_grammer& operator=( const Json_grammer& ); // to prevent "assignment operator could not be generated" warning\r
+\r
+ Semantic_actions_t& actions_;\r
+ };\r
+\r
+ template< class Iter_type, class Value_type >\r
+ void add_posn_iter_and_read_range_or_throw( Iter_type begin, Iter_type end, Value_type& value )\r
+ {\r
+ typedef spirit_namespace::position_iterator< Iter_type > Posn_iter_t;\r
+\r
+ const Posn_iter_t posn_begin( begin, end );\r
+ const Posn_iter_t posn_end( end, end );\r
+ \r
+ read_range_or_throw( posn_begin, posn_end, value );\r
+ }\r
+\r
+ template< class Istream_type >\r
+ struct Multi_pass_iters\r
+ {\r
+ typedef typename Istream_type::char_type Char_type;\r
+ typedef std::istream_iterator< Char_type, Char_type > istream_iter;\r
+ typedef spirit_namespace::multi_pass< istream_iter > Mp_iter;\r
+\r
+ Multi_pass_iters( Istream_type& is )\r
+ {\r
+ is.unsetf( std::ios::skipws );\r
+\r
+ begin_ = spirit_namespace::make_multi_pass( istream_iter( is ) );\r
+ end_ = spirit_namespace::make_multi_pass( istream_iter() );\r
+ }\r
+\r
+ Mp_iter begin_;\r
+ Mp_iter end_;\r
+ };\r
+\r
+ // reads a JSON Value from a pair of input iterators throwing an exception on invalid input, e.g.\r
+ //\r
+ // string::const_iterator start = str.begin();\r
+ // const string::const_iterator next = read_range_or_throw( str.begin(), str.end(), value );\r
+ //\r
+ // The iterator 'next' will point to the character past the \r
+ // last one read.\r
+ //\r
+ template< class Iter_type, class Value_type >\r
+ Iter_type read_range_or_throw( Iter_type begin, Iter_type end, Value_type& value )\r
+ {\r
+ Semantic_actions< Value_type, Iter_type > semantic_actions( value );\r
+ \r
+ const spirit_namespace::parse_info< Iter_type > info = \r
+ spirit_namespace::parse( begin, end, \r
+ Json_grammer< Value_type, Iter_type >( semantic_actions ), \r
+ spirit_namespace::space_p );\r
+\r
+ if( !info.hit )\r
+ {\r
+ assert( false ); // in theory exception should already have been thrown\r
+ throw_error( info.stop, "error" );\r
+ }\r
+\r
+ return info.stop;\r
+ }\r
+\r
+ // reads a JSON Value from a pair of input iterators, e.g.\r
+ //\r
+ // string::const_iterator start = str.begin();\r
+ // const bool success = read_string( start, str.end(), value );\r
+ //\r
+ // The iterator 'start' will point to the character past the \r
+ // last one read.\r
+ //\r
+ template< class Iter_type, class Value_type >\r
+ bool read_range( Iter_type& begin, Iter_type end, Value_type& value )\r
+ {\r
+ try\r
+ {\r
+ begin = read_range_or_throw( begin, end, value );\r
+\r
+ return true;\r
+ }\r
+ catch( ... )\r
+ {\r
+ return false;\r
+ }\r
+ }\r
+\r
+ // reads a JSON Value from a string, e.g.\r
+ //\r
+ // const bool success = read_string( str, value );\r
+ //\r
+ template< class String_type, class Value_type >\r
+ bool read_string( const String_type& s, Value_type& value )\r
+ {\r
+ typename String_type::const_iterator begin = s.begin();\r
+\r
+ return read_range( begin, s.end(), value );\r
+ }\r
+\r
+ // reads a JSON Value from a string throwing an exception on invalid input, e.g.\r
+ //\r
+ // read_string_or_throw( is, value );\r
+ //\r
+ template< class String_type, class Value_type >\r
+ void read_string_or_throw( const String_type& s, Value_type& value )\r
+ {\r
+ add_posn_iter_and_read_range_or_throw( s.begin(), s.end(), value );\r
+ }\r
+\r
+ // reads a JSON Value from a stream, e.g.\r
+ //\r
+ // const bool success = read_stream( is, value );\r
+ //\r
+ template< class Istream_type, class Value_type >\r
+ bool read_stream( Istream_type& is, Value_type& value )\r
+ {\r
+ Multi_pass_iters< Istream_type > mp_iters( is );\r
+\r
+ return read_range( mp_iters.begin_, mp_iters.end_, value );\r
+ }\r
+\r
+ // reads a JSON Value from a stream throwing an exception on invalid input, e.g.\r
+ //\r
+ // read_stream_or_throw( is, value );\r
+ //\r
+ template< class Istream_type, class Value_type >\r
+ void read_stream_or_throw( Istream_type& is, Value_type& value )\r
+ {\r
+ const Multi_pass_iters< Istream_type > mp_iters( is );\r
+\r
+ add_posn_iter_and_read_range_or_throw( mp_iters.begin_, mp_iters.end_, value );\r
+ }\r
+}\r
+\r
+#endif\r
Code Review / stor4nfv.git / blobdiff