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diff --git a/include/treekeyidx.h b/include/treekeyidx.h
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+++ b/include/treekeyidx.h
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+/******************************************************************************
+ *  versekey.h - code for class 'versekey'- a standard Biblical verse key
+ *
+ * $Id: treekeyidx.h,v 1.1 2002/01/24 08:55:27 scribe Exp $
+ *
+ * Copyright 1998 CrossWire Bible Society (http://www.crosswire.org)
+ *	CrossWire Bible Society
+ *	P. O. Box 2528
+ *	Tempe, AZ  85280-2528
+ *
+ * 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 version 2.
+ *
+ * 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.
+ *
+ */
+
+
+#ifndef TREEKEYIDX_H
+#define TREEKEYIDX_H
+
+#include <treekey.h>
+#include <sysdata.h>
+#include <filemgr.h>
+
+
+/**
+ * Class VerseKey
+ * The SWKey implementation used for verse based modules like Bibles or commentaries.
+ */
+class SWDLLEXPORT TreeKeyIdx : public TreeKey {
+
+	class TreeNode {
+	public:
+		TreeNode();
+		~TreeNode();
+		void clear();
+		__u32 offset;
+		__s32 parent;
+		__s32 next;
+		__s32 firstChild;
+		char *name;
+		__u16 dsize;
+		char *userData;
+	} currentNode;
+
+	static SWClass classdef;
+
+	char *path;
+
+	FileDesc *idxfd;
+	FileDesc *datfd;
+
+	void getTreeNodeFromDatOffset(long ioffset, TreeNode *buf) const;
+	char getTreeNodeFromIdxOffset(long ioffset, TreeNode *node) const;
+	void saveTreeNode(TreeNode *node);
+	void saveTreeNodeOffsets(TreeNode *node);
+
+public:
+	TreeKeyIdx(const TreeKeyIdx &ikey);
+	TreeKeyIdx (const char *idxPath, int fileMode = -1);
+	~TreeKeyIdx ();
+
+
+	virtual const char *getLocalName();
+	virtual const char *setLocalName(const char *);
+
+	virtual const char *getUserData(int *size = 0);
+	virtual void setUserData(const char *userData, int size = 0);
+
+	virtual const char *getFullName() const;
+
+	virtual void root();
+	virtual bool parent();
+
+	virtual bool firstChild();
+	virtual bool nextSibling();
+	virtual bool previousSibling();
+
+	virtual bool hasChildren();
+
+	virtual void append();
+	virtual void appendChild();
+	virtual void insertBefore();
+
+	virtual void remove();
+	virtual void save();
+
+	virtual void copyFrom(const TreeKeyIdx &ikey);
+	virtual void copyFrom(const SWKey & ikey);
+
+	virtual SWKey &operator = (const TreeKeyIdx &ikey) { copyFrom(ikey); return *this; }
+	void setOffset(unsigned long offset);
+	unsigned long getOffset() const;
+
+	SWKEY_OPERATORS
+
+	virtual void setText(const char *ikey);
+	virtual void setPosition(SW_POSITION p);
+	virtual const char *getText() const;
+	virtual int _compare (const TreeKeyIdx & ikey);
+	virtual int compare(const SWKey &ikey);
+	virtual void decrement(int steps = 1);
+	virtual void increment(int steps = 1);
+	virtual char Traversable () { return 1; }
+
+	static signed char create(const char *path);
+};
+
+
+#endif