Code Reorganization

- Eliminated the parser lib, merged into task.  Failed experiment.

src/A3t.h

@@ -0,0 +1,76 @@
+////////////////////////////////////////////////////////////////////////////////
+// taskwarrior - a command line task list manager.
+//
+// Copyright 2006-2013, Paul Beckingham, Federico Hernandez.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+//
+// http://www.opensource.org/licenses/mit-license.php
+//
+////////////////////////////////////////////////////////////////////////////////
+#ifndef INCLUDED_A3T
+#define INCLUDED_A3T
+
+#include <Tree.h>
+#include <string>
+#include <map>
+
+class A3t
+{
+public:
+  A3t ();
+  ~A3t ();
+  void initialize (int, const char**);
+  Tree* parse ();
+  void entity (const std::string&, const std::string&);
+  bool canonicalize (std::string&, const std::string&, const std::string&) const;
+
+private:
+  void findBinary ();
+  void findTerminator ();
+  void findCommand ();
+  void findFileOverride ();
+  void findConfigOverride ();
+  void findPattern ();
+  void findSubstitution ();
+  void findTag ();
+  void findAttribute ();
+  void findAttributeModifier ();
+  void findIdSequence ();
+  void findUUIDList ();
+  void findOperator ();
+  void validate ();
+
+  // TODO Resolve aliases
+  // TODO Inject defaults
+  // TODO Extract filter
+  // TODO Extract words
+  // TODO Extract modifications
+  // TODO Prepare infix
+  // TODO Expand operators
+  // TODO Expand sequence
+  // TODO Convert to postfix - not necessary given parse tree?
+
+private:
+  Tree* _tree;
+  std::multimap <std::string, std::string> _entities;
+};
+
+#endif
+