/*==LICENSE==*

CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011  Cyan Worlds, Inc.

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/>.

You can contact Cyan Worlds, Inc. by email legal@cyan.com
 or by snail mail at:
      Cyan Worlds, Inc.
      14617 N Newport Hwy
      Mead, WA   99021

*==LICENSE==*/
#ifndef HS_STRING_TABLE_H
#define HS_STRING_TABLE_H

#include "HeadSpin.h"

class hsStringTable 
{
public:
    class Node {
    protected:
        Node(char c=0);
        ~Node();
    public:
        void* GetData();
        void SetData(void* v);
        friend class hsStringTable;
    private:
        Node* sib;
        Node* kid;
        char chr;
        void* data;
    };

    hsStringTable() {}
    ~hsStringTable();
    void Reset();
    Node* Find(const char* str);
    Node* FindPartial(char* str, Int32 len=0) const;
    void Register(const char* str, void* data);

    typedef hsBool (hsStringTableCallback)(Node*);
    hsBool Iterate(hsStringTableCallback* callback, Node* fromNode=nil);
private:
    Node* FindRecur(Node* root, const char* str, hsBool createIfNeeded=false);
    Node* FindPartialRecur(Node* root, char* str, Int32 len) const;
    Node* AddRecur(Node* root, const char* str);
    Node* FindLeafRecur(Node* root, char* str, Int32 len) const;
    void RemoveNode(Node* root);
    hsBool IterateRecur(Node* root, hsStringTableCallback* callback);

    Node root;
};



#endif