C++ (Cpp) Lexer::LoadFile Examples

Example #1

File: XDeclParser.cpp Project: kuijerlattie/open-game-libraries

/*
================
XDeclParser::LexFile
================
*/
bool XDeclParser::LexFile( const char *filename ) {
	Lexer lexer;
	if ( !lexer.LoadFile( filename ) )
		return false;

	try {
		Parse(lexer);
		return true;
	}
	catch( LexerError err ) {
		String errStr;
		err.ToString( errStr );
		User::Error( ERR_LEXER_FAILURE, errStr.c_str(), filename );
		return false;
	}
}

Example #2

File: DeclParser.cpp Project: ensiform/open-game-libraries

/*
================
DeclParser::MakeBinary
================
*/
bool DeclParser::MakeBinary( const char *filename ) {
	if ( commonFS == OG_NULL )
		return false;

	Lexer lexer;
	if ( !lexer.LoadFile( filename ) )
		return false;

	File *f = commonFS->OpenWrite( Format( "$*.bin" ) << filename );
	if ( !f )
		return false;

	try {
		f->Write( DECL_DESCRIPTOR_STR, DECL_DESCRIPTOR_LENGTH );

		Dict dict;
		bool getKeyValue = false;

		const Token *token;
		String key, value;

		String str;
		const char *p;
		while ( (token = lexer.ReadToken()) != OG_NULL ) {
			//! @todo	maybe token should be stored as String, so we don't have to recalc len/bytelen
			p = token->GetString();
			if ( p ) {
				if ( *p == '\0' ) {
					lexer.Error("Unexpected Empty Token");
					return false;
				}
				if ( !getKeyValue ) {
					str = p;
					str.WriteToFile( f );
					value = lexer.ReadString();

					if ( value.IsEmpty() ) {
						lexer.Error("Empty name!");
						return false;
					}
					value.WriteToFile( f );

					lexer.ExpectToken("{");
					getKeyValue = true;
				} else {
					if ( *p == '}' ) {
						getKeyValue = false;
						dict.WriteToFile( f );
						dict.Clear();
					}
					else {
						key = p;
						dict.Set( key.c_str(), lexer.ReadString() );
					}
				}
			}
		}
		if ( getKeyValue ) {
			lexer.Error("Unexpected End Of File");
			return false;
		}
		return true;
	}
	catch( FileReadWriteError &err ) {
		f->Close();
		User::Error( ERR_FILE_WRITEFAIL, Format("Binary Decl: $*.bin" ) << err.ToString(), filename );
		return false;
	}
	catch( LexerError &err ) {
		f->Close();
		String errStr;
		err.ToString( errStr );
		User::Error( ERR_LEXER_FAILURE, errStr.c_str(), filename );
		return false;
	}
}