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secondo/Algebras/CStream/VTree.h
2026-01-23 17:03:45 +08:00

128 lines
2.8 KiB
C++

/*
----
This file is part of SECONDO.
Copyright (C) 2004, University in Hagen, Department of Computer Science,
Database Systems for New Applications.
SECONDO 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 2 of the License, or
(at your option) any later version.
SECONDO 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 SECONDO; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
----
//paragraph [1] Title: [{\Large \bf \begin{center}] [\end{center}}]
//characters [1] Type: [] []
//characters [2] Type: [] []
//[ae] [\"{a}]
//[oe] [\"{o}]
//[ue] [\"{u}]
//[ss] [{\ss}]
//[Ae] [\"{A}]
//[Oe] [\"{O}]
//[Ue] [\"{U}]
//[x] [$\times $]
//[->] [$\rightarrow $]
//[toc] [\tableofcontents]
[1] Implementation of Tree functions.
[toc]
1 Node class definition
2 Tree class definition
*/
#ifndef __VTREE_H__
#define __VTREE_H__
#include <string>
#include <vector>
#include <set>
#include "NestedList.h"
#include "ListUtils.h"
#include "NList.h"
namespace cstream {
typedef enum {NAME, TYPE} NodeType;
/*
1. Node class definition.
*/
class Node {
public:
Node(const std::string& n, const std::string& v, Node* p);
void AddChild(Node* p);
Node* _parent;
std::string _name;
std::string _type;
std::vector<Node*> _children;
};
/*
2. Tree class definition.
*/
class VTree {
public:
static VTree& Inst() {
static VTree _svtree;
return _svtree;
}
/*Node* Create(
const std::string& s,
std::string& error,
int& max_depth,
int& num_nodes
);*/
Node* Create(
ListExpr list,
std::string& error,
int& max_depth,
int& num_nodes
);
void Delete(Node*& root);
static void Print(Node* n, const std::string& ident);
int _max_depth;
int _num_nodes;
protected:
bool IsLetterDigit(char ch);
bool EatSpace(const std::string& s, size_t& pos);
size_t GetNextSpace(const std::string& s, size_t pos, bool& nospace);
size_t NextCloseBracket(const std::string& s, size_t pos);
size_t NextOpenBracket(const std::string& s, size_t pos);
void RemoveSpace(std::string& s);
void CreateRec(
Node* parent,
const ListExpr& list,
int depth,
bool isvector,
std::string& error
);
void DeleteRec(Node* n);
//bool CheckAttrName(const std::string& name, std::string& serror);
//bool CheckAttrType(const std::string& type);
};
}
#endif