/*----------------------------------------------------------------------------------------------- The MIT License (MIT) Copyright (c) 2014-2015 Kim Kulling Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. -----------------------------------------------------------------------------------------------*/ #include #include #include #include #include #include #include #ifdef _WIN32 # include #endif // _WIN32 #define DEBUG_HEADER_NAME BEGIN_ODDLPARSER_NS static const char *Version = "0.3.0"; namespace Grammar { static const char *OpenBracketToken = "{"; static const char *CloseBracketToken = "}"; static const char *OpenPropertyToken = "("; static const char *ClosePropertyToken = ")"; static const char *OpenArrayToken = "["; static const char *CloseArrayToken = "]"; static const char *BoolTrue = "true"; static const char *BoolFalse = "false"; static const char *CommaSeparator = ","; static const char* PrimitiveTypeToken[ Value::ddl_types_max ] = { "bool", "int8", "int16", "int32", "int64", "unsigned_int8", "unsigned_int16", "unsigned_int32", "unsigned_int64", "half", "float", "double", "string", "ref" }; } // Namespace Grammar const char *getTypeToken( Value::ValueType type ) { return Grammar::PrimitiveTypeToken[ type ]; } static void logInvalidTokenError( char *in, const std::string &exp, OpenDDLParser::logCallback callback ) { std::stringstream stream; stream << "Invalid token " << *in << ", " << exp << " expected." << std::endl; callback( ddl_error_msg, stream.str() ); } static bool isIntegerType( Value::ValueType integerType ) { if( integerType != Value::ddl_int8 && integerType != Value::ddl_int16 && integerType != Value::ddl_int32 && integerType != Value::ddl_int64 ) { return false; } return true; } static DDLNode *createDDLNode( Identifier *id, OpenDDLParser *parser ) { if( ddl_nullptr == id || ddl_nullptr == parser ) { return ddl_nullptr; } const std::string type( id->m_text.m_buffer ); DDLNode *parent( parser->top() ); DDLNode *node = DDLNode::create( type, "", parent ); return node; } static void logMessage( LogSeverity severity, const std::string &msg ) { std::string log; if( ddl_debug_msg == severity ) { log += "Debug:"; } else if( ddl_info_msg == severity ) { log += "Info :"; } else if( ddl_warn_msg == severity ) { log += "Warn :"; } else if( ddl_error_msg == severity ) { log += "Error:"; } else { log += "None :"; } log += msg; std::cout << log; } OpenDDLParser::OpenDDLParser() : m_logCallback( logMessage ) , m_buffer() , m_stack() , m_context( ddl_nullptr ) { // empty } OpenDDLParser::OpenDDLParser( char *buffer, size_t len ) : m_logCallback( &logMessage ) , m_buffer() , m_context( ddl_nullptr ) { if( 0 != len ) { setBuffer( buffer, len ); } } OpenDDLParser::~OpenDDLParser() { clear(); } void OpenDDLParser::setLogCallback( logCallback callback ) { if( ddl_nullptr != callback ) { // install user-specific log callback m_logCallback = callback; } else { // install default log callback m_logCallback = &logMessage; } } OpenDDLParser::logCallback OpenDDLParser::getLogCallback() const { return m_logCallback; } void OpenDDLParser::setBuffer( char *buffer, size_t len ) { clear(); if( 0 == len ) { return; } m_buffer.resize( len ); ::memcpy(&m_buffer[ 0 ], buffer, len ); } void OpenDDLParser::setBuffer( const std::vector &buffer ) { clear(); m_buffer.resize( buffer.size() ); std::copy( buffer.begin(), buffer.end(), m_buffer.begin() ); } const char *OpenDDLParser::getBuffer() const { if( m_buffer.empty() ) { return ddl_nullptr; } return &m_buffer[ 0 ]; } size_t OpenDDLParser::getBufferSize() const { return m_buffer.size(); } void OpenDDLParser::clear() { m_buffer.resize( 0 ); if( m_context ) { m_context->m_root = ddl_nullptr; } DDLNode::releaseNodes(); } bool OpenDDLParser::parse() { if( m_buffer.empty() ) { return false; } normalizeBuffer( m_buffer ); m_context = new Context; m_context->m_root = DDLNode::create( "root", "", ddl_nullptr ); pushNode( m_context->m_root ); // do the main parsing char *current( &m_buffer[ 0 ] ); char *end( &m_buffer[ m_buffer.size() - 1 ] + 1 ); size_t pos( current - &m_buffer[ 0 ] ); while( pos < m_buffer.size() ) { current = parseNextNode( current, end ); pos = current - &m_buffer[ 0 ]; } return true; } bool OpenDDLParser::exportContext( Context *ctx, const std::string &filename ) { if( ddl_nullptr == ctx ) { return false; } OpenDDLExport myExporter; return myExporter.exportContext( ctx, filename ); return false; } char *OpenDDLParser::parseNextNode( char *in, char *end ) { in = parseHeader( in, end ); in = parseStructure( in, end ); return in; } static void dumpId( Identifier *id ) { if( ddl_nullptr != id ) { if ( ddl_nullptr != id->m_text.m_buffer ) { } std::cout << id->m_text.m_buffer << std::endl; } } char *OpenDDLParser::parseHeader( char *in, char *end ) { if( ddl_nullptr == in || in == end ) { return in; } Identifier *id( ddl_nullptr ); in = OpenDDLParser::parseIdentifier( in, end, &id ); #ifdef DEBUG_HEADER_NAME dumpId( id ); #endif // DEBUG_HEADER_NAME in = lookForNextToken( in, end ); Property *first( ddl_nullptr ); if( ddl_nullptr != id ) { if( *in == Grammar::OpenPropertyToken[ 0 ] ) { in++; Property *prop( ddl_nullptr ), *prev( ddl_nullptr ); while( *in != Grammar::ClosePropertyToken[ 0 ] && in != end ) { in = OpenDDLParser::parseProperty( in, end, &prop ); in = lookForNextToken( in, end ); if( *in != Grammar::CommaSeparator[ 0 ] && *in != Grammar::ClosePropertyToken[ 0 ] ) { logInvalidTokenError( in, Grammar::ClosePropertyToken, m_logCallback ); return in; } if( ddl_nullptr != prop && *in != Grammar::CommaSeparator[ 0 ] ) { if( ddl_nullptr == first ) { first = prop; } if( ddl_nullptr != prev ) { prev->m_next = prop; } prev = prop; } } in++; } // store the node DDLNode *node( createDDLNode( id, this ) ); if( ddl_nullptr != node ) { pushNode( node ); } else { std::cerr << "nullptr returned by creating DDLNode." << std::endl; } // set the properties if( ddl_nullptr != first ) { node->setProperties( first ); } Name *name( ddl_nullptr ); in = OpenDDLParser::parseName( in, end, &name ); if( ddl_nullptr != name ) { const std::string nodeName( name->m_id->m_text.m_buffer ); node->setName( nodeName ); } } return in; } char *OpenDDLParser::parseStructure( char *in, char *end ) { if( ddl_nullptr == in || in == end ) { return in; } bool error( false ); in = lookForNextToken( in, end ); if( *in == '{' ) { // loop over all children ( data and nodes ) do { in = parseStructureBody( in, end, error ); } while ( *in != '}' ); in++; } else { in++; logInvalidTokenError( in, std::string( Grammar::OpenBracketToken ), m_logCallback ); error = true; return in; } in = lookForNextToken( in, end ); // pop node from stack after successful parsing if( !error ) { popNode(); } return in; } static void setNodeValues( DDLNode *currentNode, Value *values ) { if( ddl_nullptr != values ){ if( ddl_nullptr != currentNode ) { currentNode->setValue( values ); } } } static void setNodeReferences( DDLNode *currentNode, Reference *refs ) { if( ddl_nullptr != refs ) { if( ddl_nullptr != currentNode ) { currentNode->setReferences( refs ); } } } static void setNodeDataArrayList( DDLNode *currentNode, DataArrayList *dtArrayList ) { if( ddl_nullptr != dtArrayList ) { if( ddl_nullptr != currentNode ) { currentNode->setDataArrayList( dtArrayList ); } } } char *OpenDDLParser::parseStructureBody( char *in, char *end, bool &error ) { if( !isNumeric( *in ) && !isCharacter( *in ) ) { in++; } in = lookForNextToken( in, end ); Value::ValueType type( Value::ddl_none ); size_t arrayLen( 0 ); in = OpenDDLParser::parsePrimitiveDataType( in, end, type, arrayLen ); if( Value::ddl_none != type ) { // parse a primitive data type in = lookForNextToken( in, end ); if( *in == Grammar::OpenBracketToken[ 0 ] ) { Reference *refs( ddl_nullptr ); DataArrayList *dtArrayList( ddl_nullptr ); Value *values( ddl_nullptr ); if( 1 == arrayLen ) { size_t numRefs( 0 ), numValues( 0 ); in = parseDataList( in, end, type, &values, numValues, &refs, numRefs ); setNodeValues( top(), values ); setNodeReferences( top(), refs ); } else if( arrayLen > 1 ) { in = parseDataArrayList( in, end, &dtArrayList ); setNodeDataArrayList( top(), dtArrayList ); } else { std::cerr << "0 for array is invalid." << std::endl; error = true; } } in = lookForNextToken( in, end ); if( *in != '}' ) { logInvalidTokenError( in, std::string( Grammar::CloseBracketToken ), m_logCallback ); } else { //in++; } } else { // parse a complex data type in = parseNextNode( in, end ); } return in; } void OpenDDLParser::pushNode( DDLNode *node ) { if( ddl_nullptr == node ) { return; } m_stack.push_back( node ); } DDLNode *OpenDDLParser::popNode() { if( m_stack.empty() ) { return ddl_nullptr; } DDLNode *topNode( top() ); m_stack.pop_back(); return topNode; } DDLNode *OpenDDLParser::top() { if( m_stack.empty() ) { return ddl_nullptr; } DDLNode *top( m_stack.back() ); return top; } DDLNode *OpenDDLParser::getRoot() const { if( ddl_nullptr == m_context ) { return ddl_nullptr; } return m_context->m_root; } Context *OpenDDLParser::getContext() const { return m_context; } void OpenDDLParser::normalizeBuffer( std::vector &buffer) { if( buffer.empty() ) { return; } std::vector newBuffer; const size_t len( buffer.size() ); char *end( &buffer[ len-1 ] + 1 ); for( size_t readIdx = 0; readIdx( c, end ) && !isNewLine( *c ) ) { newBuffer.push_back( buffer[ readIdx ] ); } else { if( isComment( c, end ) ) { ++readIdx; // skip the comment and the rest of the line while( !isEndofLine( buffer[ readIdx ] ) ) { ++readIdx; } } } } buffer = newBuffer; } char *OpenDDLParser::parseName( char *in, char *end, Name **name ) { *name = ddl_nullptr; if( ddl_nullptr == in || in == end ) { return in; } // ignore blanks in = lookForNextToken( in, end ); if( *in != '$' && *in != '%' ) { return in; } NameType ntype( GlobalName ); if( *in == '%' ) { ntype = LocalName; } Name *currentName( ddl_nullptr ); Identifier *id( ddl_nullptr ); in = parseIdentifier( in, end, &id ); if( id ) { currentName = new Name( ntype, id ); if( currentName ) { *name = currentName; } } return in; } char *OpenDDLParser::parseIdentifier( char *in, char *end, Identifier **id ) { *id = ddl_nullptr; if( ddl_nullptr == in || in == end ) { return in; } // ignore blanks in = lookForNextToken( in, end ); // staring with a number is forbidden if( isNumeric( *in ) ) { return in; } // get size of id size_t idLen( 0 ); char *start( in ); while( !isSeparator( *in ) && !isNewLine( *in ) && ( in != end ) && *in != Grammar::OpenPropertyToken[ 0 ] && *in != Grammar::ClosePropertyToken[ 0 ] ) { ++in; ++idLen; } const size_t len( idLen ); Identifier *newId = new Identifier( start, len ); *id = newId; return in; } char *OpenDDLParser::parsePrimitiveDataType( char *in, char *end, Value::ValueType &type, size_t &len ) { type = Value::ddl_none; len = 0; if( ddl_nullptr == in || in == end ) { return in; } size_t prim_len( 0 ); for( unsigned int i = 0; i < Value::ddl_types_max; i++ ) { prim_len = strlen( Grammar::PrimitiveTypeToken[ i ] ); if( 0 == strncmp( in, Grammar::PrimitiveTypeToken[ i ], prim_len ) ) { type = ( Value::ValueType ) i; break; } } if( Value::ddl_none == type ) { in = lookForNextToken( in, end ); return in; } else { in += prim_len; } bool ok( true ); if( *in == Grammar::OpenArrayToken[ 0 ] ) { ok = false; in++; char *start( in ); while ( in != end ) { in++; if( *in == Grammar::CloseArrayToken[ 0 ] ) { len = ::atoi( start ); ok = true; in++; break; } } } else { len = 1; } if( !ok ) { type = Value::ddl_none; } return in; } char *OpenDDLParser::parseReference( char *in, char *end, std::vector &names ) { if( ddl_nullptr == in || in == end ) { return in; } Name *nextName( ddl_nullptr ); in = parseName( in, end, &nextName ); if( nextName ) { names.push_back( nextName ); } while( Grammar::CommaSeparator[ 0 ] == *in ) { in = getNextSeparator( in, end ); if( Grammar::CommaSeparator[ 0 ] == *in ) { in = parseName( in, end, &nextName ); if( nextName ) { names.push_back( nextName ); } } else { break; } } return in; } char *OpenDDLParser::parseBooleanLiteral( char *in, char *end, Value **boolean ) { *boolean = ddl_nullptr; if( ddl_nullptr == in || in == end ) { return in; } in = lookForNextToken( in, end ); char *start( in ); size_t len( 0 ); while( !isSeparator( *in ) && in != end ) { in++; len++; } len++; int res = ::strncmp( Grammar::BoolTrue, start, strlen( Grammar::BoolTrue ) ); if( 0 != res ) { res = ::strncmp( Grammar::BoolFalse, start, strlen( Grammar::BoolFalse ) ); if( 0 != res ) { *boolean = ddl_nullptr; return in; } *boolean = ValueAllocator::allocPrimData( Value::ddl_bool ); (*boolean)->setBool( false ); } else { *boolean = ValueAllocator::allocPrimData( Value::ddl_bool ); (*boolean)->setBool( true ); } return in; } char *OpenDDLParser::parseIntegerLiteral( char *in, char *end, Value **integer, Value::ValueType integerType ) { *integer = ddl_nullptr; if( ddl_nullptr == in || in == end ) { return in; } if( !isIntegerType( integerType ) ) { return in; } in = lookForNextToken( in, end ); char *start( in ); while( !isSeparator( *in ) && in != end ) { in++; } if( isNumeric( *start ) ) { const int value( atoi( start ) ); *integer = ValueAllocator::allocPrimData( integerType ); switch( integerType ) { case Value::ddl_int8: ( *integer )->setInt8( (int8) value ); break; case Value::ddl_int16: ( *integer )->setInt16( ( int16 ) value ); break; case Value::ddl_int32: ( *integer )->setInt32( ( int32 ) value ); break; case Value::ddl_int64: ( *integer )->setInt64( ( int64 ) value ); break; default: break; } } return in; } char *OpenDDLParser::parseFloatingLiteral( char *in, char *end, Value **floating ) { *floating = ddl_nullptr; if( ddl_nullptr == in || in == end ) { return in; } in = lookForNextToken( in, end ); char *start( in ); while( !isSeparator( *in ) && in != end ) { in++; } // parse the float value bool ok( false ); if( isNumeric( *start ) ) { ok = true; } else { if( *start == '-' ) { if( isNumeric( *(start+1) ) ) { ok = true; } } } if( ok ) { const float value( ( float ) atof( start ) ); *floating = ValueAllocator::allocPrimData( Value::ddl_float ); ( *floating )->setFloat( value ); } return in; } char *OpenDDLParser::parseStringLiteral( char *in, char *end, Value **stringData ) { *stringData = ddl_nullptr; if( ddl_nullptr == in || in == end ) { return in; } in = lookForNextToken( in, end ); size_t len( 0 ); char *start( in ); if( *start == '\"' ) { start++; in++; while( *in != '\"' && in != end ) { in++; len++; } *stringData = ValueAllocator::allocPrimData( Value::ddl_string, len ); ::strncpy( ( char* ) ( *stringData )->m_data, start, len ); ( *stringData )->m_data[len] = '\0'; in++; } return in; } static void createPropertyWithData( Identifier *id, Value *primData, Property **prop ) { if( ddl_nullptr != primData ) { ( *prop ) = new Property( id ); ( *prop )->m_value = primData; } } char *OpenDDLParser::parseHexaLiteral( char *in, char *end, Value **data ) { *data = ddl_nullptr; if( ddl_nullptr == in || in == end ) { return in; } in = lookForNextToken( in, end ); if( *in != '0' ) { return in; } in++; if( *in != 'x' && *in != 'X' ) { return in; } in++; bool ok( true ); char *start( in ); int pos( 0 ); while( !isSeparator( *in ) && in != end ) { if( ( *in < '0' && *in > '9' ) || ( *in < 'a' && *in > 'f' ) || ( *in < 'A' && *in > 'F' ) ) { ok = false; break; } pos++; in++; } if( !ok ) { return in; } int value( 0 ); while( pos > 0 ) { int v = hex2Decimal( *start ); pos--; value = ( value << 4 ) | v; start++; } *data = ValueAllocator::allocPrimData( Value::ddl_unsigned_int64 ); if( ddl_nullptr != *data ) { ( *data )->setUnsignedInt64( value ); } return in; } char *OpenDDLParser::parseProperty( char *in, char *end, Property **prop ) { *prop = ddl_nullptr; if( ddl_nullptr == in || in == end ) { return in; } in = lookForNextToken( in, end ); Identifier *id( ddl_nullptr ); in = parseIdentifier( in, end, &id ); if( ddl_nullptr != id ) { in = lookForNextToken( in, end ); if( *in == '=' ) { in++; in = getNextToken( in, end ); Value *primData( ddl_nullptr ); if( isInteger( in, end ) ) { in = parseIntegerLiteral( in, end, &primData ); createPropertyWithData( id, primData, prop ); } else if( isFloat( in, end ) ) { in = parseFloatingLiteral( in, end, &primData ); createPropertyWithData( id, primData, prop ); } else if( isStringLiteral( *in ) ) { // string data in = parseStringLiteral( in, end, &primData ); createPropertyWithData( id, primData, prop ); } else { // reference data std::vector names; in = parseReference( in, end, names ); if( !names.empty() ) { Reference *ref = new Reference( names.size(), &names[ 0 ] ); ( *prop ) = new Property( id ); ( *prop )->m_ref = ref; } } } } return in; } char *OpenDDLParser::parseDataList( char *in, char *end, Value::ValueType type, Value **data, size_t &numValues, Reference **refs, size_t &numRefs ) { *data = ddl_nullptr; numValues = numRefs = 0; if( ddl_nullptr == in || in == end ) { return in; } in = lookForNextToken( in, end ); if( *in == '{' ) { in++; Value *current( ddl_nullptr ), *prev( ddl_nullptr ); while( '}' != *in ) { current = ddl_nullptr; in = lookForNextToken( in, end ); if (Value::ddl_none == type) { if (isInteger( in, end )) { in = parseIntegerLiteral( in, end, ¤t ); } else if (isFloat( in, end )) { in = parseFloatingLiteral( in, end, ¤t ); } else if (isStringLiteral( *in )) { in = parseStringLiteral( in, end, ¤t ); } else if (isHexLiteral( in, end )) { in = parseHexaLiteral( in, end, ¤t ); } else { // reference data std::vector names; in = parseReference( in, end, names ); if (!names.empty()) { Reference *ref = new Reference( names.size(), &names[ 0 ] ); *refs = ref; numRefs = names.size(); } } } else { if (Value::ddl_int32 == type) { in = parseIntegerLiteral( in, end, ¤t ); } else if (Value::ddl_float == type) { in = parseFloatingLiteral( in, end, ¤t ); } else if (Value::ddl_string == type) { in = parseStringLiteral( in, end, ¤t ); } } if( ddl_nullptr != current ) { if( ddl_nullptr == *data ) { *data = current; prev = current; } else { prev->setNext( current ); prev = current; } numValues++; } in = getNextSeparator( in, end ); if( ',' != *in && Grammar::CloseBracketToken[ 0 ] != *in && !isSpace( *in ) ) { break; } } in++; } return in; } static DataArrayList *createDataArrayList( Value *currentValue, size_t numValues ) { DataArrayList *dataList = new DataArrayList; dataList->m_dataList = currentValue; dataList->m_numItems = numValues; return dataList; } char *OpenDDLParser::parseDataArrayList( char *in, char *end, DataArrayList **dataList ) { *dataList = ddl_nullptr; if( ddl_nullptr == in || in == end ) { return in; } in = lookForNextToken( in, end ); if( *in == Grammar::OpenBracketToken[ 0 ] ) { in++; Value *currentValue( ddl_nullptr ); Reference *refs( ddl_nullptr ); DataArrayList *prev( ddl_nullptr ), *currentDataList( ddl_nullptr ); do { size_t numRefs( 0 ), numValues( 0 ); currentValue = ddl_nullptr; Value::ValueType type( Value::ddl_none ); in = parseDataList( in, end, type, ¤tValue, numValues, &refs, numRefs ); if( ddl_nullptr != currentValue ) { if( ddl_nullptr == prev ) { *dataList = createDataArrayList( currentValue, numValues ); prev = *dataList; } else { currentDataList = createDataArrayList( currentValue, numValues ); if( ddl_nullptr != prev ) { prev->m_next = currentDataList; prev = currentDataList; } } } } while( Grammar::CommaSeparator[ 0 ] == *in && in != end ); in = lookForNextToken( in, end ); in++; } return in; } const char *OpenDDLParser::getVersion() { return Version; } END_ODDLPARSER_NS