Ensure correct parsing and decoding of strings [#3395016]

2026-08-16 10:34:31 +00:00 · 2011-09-25 09:53:22 +00:00
parent 767f7b4090
commit f7abadc081
13 changed files with 438 additions and 49 deletions
@@ -0,0 +1,61 @@
+/********************************************************************************
+ *                                                                              *
+ * This file is part of IfcOpenShell.                                           *
+ *                                                                              *
+ * IfcOpenShell is free software: you can redistribute it and/or modify         *
+ * it under the terms of the Lesser GNU General Public License as published by  *
+ * the Free Software Foundation, either version 3.0 of the License, or          *
+ * (at your option) any later version.                                          *
+ *                                                                              *
+ * IfcOpenShell is distributed in the hope that it will be useful,              *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of               *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the                 *
+ * Lesser GNU General Public License for more details.                          *
+ *                                                                              *
+ * You should have received a copy of the Lesser GNU General Public License     *
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.         *
+ *                                                                              *
+ ********************************************************************************/
+ 
+ /********************************************************************************
+ *                                                                               *
+ * Reads a file in chunks of BUF_SIZE and provides functions to access its       *
+ * contents randomly and character by character                                  *
+ *                                                                               *
+ ********************************************************************************/
+ 
+#ifndef IFCFILE_H
+#define IFCFILE_H
+
+#include <fstream>
+#include <string>
+
+const int BUF_SIZE = (32 * 1024 * 1024);
+
+namespace IfcParse {
+
+	class File {
+	private:
+		std::ifstream stream;
+		char* buffer;
+		unsigned int ptr;
+		unsigned int len;
+		unsigned int offset;
+		void ReadBuffer(bool inc=true);
+		bool paging;
+	public:
+		bool valid;
+		bool eof;
+		unsigned int size;
+		File(const std::string& fn);
+		File(std::istream& f, int len);
+		char Peek();
+		char Read(unsigned int offset);
+		void Inc();		
+		void Close();
+		void Seek(unsigned int offset);
+		unsigned int Tell();
+	};
+}
+
+#endif