Code Reorganization

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

src/Tree.h

@@ -0,0 +1,80 @@
+////////////////////////////////////////////////////////////////////////////////
+// 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_TREE
+#define INCLUDED_TREE
+
+#include <map>
+#include <vector>
+#include <string>
+#include <sstream>
+
+class Tree;
+
+class Tree
+{
+public:
+  Tree (const std::string&);
+  ~Tree ();
+  Tree (const Tree&);
+  Tree& operator= (const Tree&);
+
+  Tree* addBranch (Tree*);
+  void removeBranch (Tree*);
+  void replaceBranch (Tree*, Tree*);
+
+  void attribute (const std::string&, const std::string&);
+  void attribute (const std::string&, const int);
+  void attribute (const std::string&, const double);
+  std::string attribute (const std::string&);
+  void removeAttribute (const std::string&);
+
+  void enumerate (std::vector <Tree*>& all) const;
+
+  bool hasTag (const std::string&) const;
+  void tag (const std::string&);
+  void unTag (const std::string&);
+
+  int count () const;
+
+  Tree* find (const std::string&);
+
+  std::string dump ();
+
+private:
+  void dumpNode (Tree*, int, std::stringstream&);
+
+public:
+  Tree* _trunk;                                    // Parent.
+  std::string _name;                               // Name.
+  std::vector <Tree*> _branches;                   // Children.
+  std::map <std::string, std::string> _attributes; // Attributes (name->value).
+  std::vector <std::string> _tags;                 // Tags (tag, tag ...).
+};
+
+#endif
+
+////////////////////////////////////////////////////////////////////////////////