Added support for MString in File

File.h

@@ -20,13 +20,15 @@ namespace coreutils {
       File(ZString &fileName, int mode = O_RDONLY, int authority = 0664);
       ~File();
       void setBufferSize(size_t size);
-      void read();
+      int read();
+      int readLine();
       void write(std::string data);
       void write(coreutils::ZString &data);
       std::string asString();
       coreutils::ZString& asZString();
       char *buffer;
       size_t size;
+      bool eof();
 
       std::string fileName;
 
@@ -34,6 +36,7 @@ namespace coreutils {
       void open(std::string fileName, int mode, int authority);
       int fd;
       coreutils::ZString zstring;
+      bool mEof = false;
 
    };