Move DAWG generation into quackleio.

Same thing I just did for the gaddag code I'm now doing
for the dawg code.  While I was at it, I made some
improvements to the dawg code...

* Instead of adding multiple cross-checks for various
kinds of node metadata, there's now only one cross-
check...a hash applied to each node.
* Some useless variables/members have been excised.
* Add ability to do a word count (cryptohash coming soon).
* Make it possible to call generate() and writeIndex()
multiple times without corrupting the dictionary.

1 files changed, 79 insertions, 0 deletions

diff --git a/quackleio/dawgfactory.h b/quackleio/dawgfactory.h
new file mode 100644
index 0000000..b2cfb76
--- /dev/null
+++ b/quackleio/dawgfactory.h
@@ -0,0 +1,79 @@
+/*
+ *  Quackle -- Crossword game artificial intelligence and analysis tool
+ *  Copyright (C) 2005-2014 Jason Katz-Brown and John O'Laughlin.
+ *
+ *  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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef QUACKLE_DAWGFACTORY_H
+#define QUACKLE_DAWGFACTORY_H
+
+#include <vector>
+#include "flexiblealphabet.h"
+
+
+class DawgFactory {
+public:
+
+	DawgFactory(const QString& alphabetFile);
+	~DawgFactory();
+
+	int wordCount() const { return root.wordCount(); };
+	int nodeCount() const { return nodelist.size(); };
+	int encodableWords() const { return m_encodableWords; };
+	int unencodableWords() const { return m_unencodableWords; };
+
+	bool pushWord(const QString& word, bool inSmaller, int playability);
+	void generate();
+	void writeIndex(const QString& fname);
+
+private:
+	class Node {
+	public:
+		void pushWord(const Quackle::LetterString& word, bool inSmaller, int pb);
+		void print(vector< Node* >& nodelist);
+
+		int letterSum() const;
+		int wordCount() const;
+		bool equals(const Node &n) const;
+
+		Quackle::Letter c;
+		bool t;
+		bool insmallerdict;
+		int playability;
+
+		vector<Node> children;
+		int pointer;
+		int location;
+
+		bool lastchild;
+
+		mutable bool sumexplored;
+		mutable int sum;
+			
+		bool deleted;
+		Node* cloneof;
+		bool written;
+	};
+
+	int m_encodableWords;
+	int m_unencodableWords;
+	vector< Node* > nodelist;
+	Quackle::AlphabetParameters *alphas;
+	Node root;
+};
+
+#endif
+
+