Initial commit of Command & Conquer Renegade source code.

Code/wwlib/textfile.cpp

@@ -0,0 +1,179 @@
+/*
+**	Command & Conquer Renegade(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program 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
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/*********************************************************************************************** 
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               *** 
+ *********************************************************************************************** 
+ *                                                                                             * 
+ *                 Project Name : Command & Conquer                                            * 
+ *                                                                                             * 
+ *                     $Archive:: /Commando/Code/wwlib/textfile.cpp                           $* 
+ *                                                                                             * 
+ *                      $Author:: Patrick                   $*
+ *                                                                                             * 
+ *                     $Modtime:: 7/26/01 9:37p                                               $*
+ *                                                                                             * 
+ *                    $Revision:: 4                                                           $*
+ *                                                                                             *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+#include "textfile.h"
+#include "wwstring.h"
+
+
+///////////////////////////////////////////////////////////////////////////////
+//
+//	TextFileClass
+//
+///////////////////////////////////////////////////////////////////////////////
+TextFileClass::TextFileClass (void)
+{
+	return ;
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+//
+//	TextFileClass
+//
+///////////////////////////////////////////////////////////////////////////////
+TextFileClass::TextFileClass (char const *filename)
+	:	RawFileClass (filename)
+{
+	return ;
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+//
+//	~TextFileClass
+//
+///////////////////////////////////////////////////////////////////////////////
+TextFileClass::~TextFileClass (void)
+{
+	return ;
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+//
+//	Read_Line
+//
+///////////////////////////////////////////////////////////////////////////////
+bool
+TextFileClass::Read_Line (StringClass &string)
+{
+	//
+	//	Start with a fresh string
+	//
+//	string.Empty ();
+	string="";
+
+	const int BUFFER_SIZE		= 64;
+	char buffer[BUFFER_SIZE]	= { 0 };
+	bool keep_going				= true;
+
+	while (keep_going) {
+
+		//
+		// Read a chunk of characters from the file
+		//
+		int size = Read (buffer, BUFFER_SIZE - 1);		
+
+		//
+		// Keep going if we still have more data to 
+		// read from the file
+		//
+		keep_going = (size == BUFFER_SIZE - 1);
+		if (size > 0) {			
+			
+			//
+			// Try to find the linefeed character
+			//
+			for (int index = 0; index < size; index ++) {
+				if (buffer[index] == '\n') {
+					
+					//
+					// Terminate the buffer after the linefeed
+					//
+					buffer[index + 1] = 0;
+
+					//
+					// Seek backwards in the file to the position
+					// directly after the linefeed
+					//
+					Seek (-(size - (index + 1)), SEEK_CUR);
+					keep_going = false;
+					break;
+				}
+			}
+			
+			//
+			//	Concat this buffer to the end of the string
+			//
+			string += buffer;
+		}
+	}
+
+	bool retval = (string.Get_Length () > 0);
+	if (retval) {
+		
+		int len				= string.Get_Length ();
+		char *raw_string	= string.Peek_Buffer ();
+		
+		//
+		// Strip the CR\LF or LF from the string
+		//		
+		if (len > 1 && raw_string[len - 2] == '\r') {
+			string.Erase (len - 2, 2);
+			//raw_string[len - 2] = 0;
+		} else if (raw_string[len - 1] == '\n') {
+			string.Erase (len - 1, 1);
+			//raw_string[len - 1] = 0;
+		}
+	}
+	
+	return retval;
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+//
+//	Write_Line
+//
+///////////////////////////////////////////////////////////////////////////////
+bool
+TextFileClass::Write_Line (const StringClass &string)
+{
+	bool retval = false;
+
+	//
+	// Write the line of text out to the file
+	//
+	int len = string.Get_Length ();
+	int size = Write ((const char *)string, len);
+
+	//
+	// Now append a CR\LF pair to the end of the line
+	//
+	if (size == len) {
+		retval = (Write ("\r\n", 2) == 2);
+	}
+
+	return retval;
+}