Enhancements - Nibbler + parsing

- New Nibbler object greatly assists in FF4 parsing.
- Unit tests for Nibbler.
- Record now parses itself.
- Att now parses itself.

src/Nibbler.h

@@ -0,0 +1,62 @@
+////////////////////////////////////////////////////////////////////////////////
+// task - a command line task list manager.
+//
+// Copyright 2006 - 2009, Paul Beckingham.
+// All rights reserved.
+//
+// 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 2 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, write to the
+//
+//     Free Software Foundation, Inc.,
+//     51 Franklin Street, Fifth Floor,
+//     Boston, MA
+//     02110-1301
+//     USA
+//
+////////////////////////////////////////////////////////////////////////////////
+#ifndef INCLUDED_NIBBLER
+#define INCLUDED_NIBBLER
+
+#include <string>
+
+class Nibbler
+{
+public:
+  Nibbler ();                          // Default constructor
+  Nibbler (const char*);               // Constructor
+  Nibbler (const std::string&);        // Constructor
+  Nibbler (const Nibbler&);            // Copy constructor
+  Nibbler& operator= (const Nibbler&); // Assignment operator
+  ~Nibbler ();                         // Destructor
+
+  bool getUntilChar (char, std::string&);
+  bool getUntilChars (const std::string&, std::string&);
+  bool getUntilString (const std::string&, std::string&);
+  bool skip (const int quantity = 1);
+  bool skip (char);
+  bool skipAll (char);
+  bool skipAllChars (const std::string&);
+  bool getQuoted (char, std::string&);
+  bool getInt (int&);
+  bool getUnsignedInt (int&i);
+  bool getUntilEOL (std::string&);
+  bool getUntilEOS (std::string&);
+  bool depleted ();
+
+private:
+  std::string mInput;
+  std::string::size_type mCursor;
+};
+
+#endif
+////////////////////////////////////////////////////////////////////////////////