Platform/TextReader.cpp

   1 /*
   2  Copyright (c) 2008 TrueCrypt Developers Association. All rights reserved.
   3
   4  Governed by the TrueCrypt License 3.0 the full text of which is contained in
   5  the file License.txt included in TrueCrypt binary and source code distribution
   6  packages.
   7 */
   8
   9 #include "TextReader.h"
  10
  11 namespace TrueCrypt
  12 {
  13         TextReader::TextReader (const FilePath &path)
  14         {
  15                 InputFile.reset (new File);
  16                 InputFile->Open (path);
  17                 InputStream = shared_ptr <Stream> (new FileStream (InputFile));
  18         }
  19
  20         bool TextReader::ReadLine (string &outputString)
  21         {
  22                 outputString.erase();
  23
  24                 char c;
  25                 while (InputStream->Read (BufferPtr ((byte *) &c, sizeof (c))) == sizeof (c))
  26                 {
  27                         if (c == '\r')
  28                                 continue;
  29
  30                         if (c == '\n')
  31                                 return true;
  32
  33                         outputString += c;
  34                 }
  35                 return !outputString.empty();
  36         }
  37 }