CS计算机代考程序代写 /* -*-C++-*- */

/* -*-C++-*- */
/*
* XML.
*
* Copyright 2003-2005 Carnegie Mellon University and Rutgers University
* Copyright 2007 Håkan Younes
*
* Licensed under the Apache License, Version 2.0 (the “License”);
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an “AS IS” BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef _STRXML_H
#define _STRXML_H

/* Comment out the following define if you get complaints with sstream */
#define HAVE_SSTREAM 1

#include
#include

/* ====================================================================== */
/* XMLNode */

/*
* An abstract XML node.
*/
struct XMLNode {
/* Deletes this XML node. */
virtual ~XMLNode() {}

/* Returns the ith child of this XML node. */
virtual const XMLNode* getChild(int i) const { return 0; }

/* Returns the child of this XML node with the given name. */
virtual const XMLNode* getChild(const std::string& name) const { return 0; }

/* Returns the size of this XML node. */
virtual int size() const { return 0; }

/* Returns the text for this XML node. */
virtual std::string getText() const = 0;

/* Returns the name for this XML node. */
virtual const std::string& getName() const = 0;

/* Returns the parameter of this XML node with the given name. */
virtual const std::string& getParam(std::string name) const = 0;

/* Puts the text for the child node with the given in the
destination string. Returns false if no child node with the
given name exists. */
bool dissect(const std::string& child, std::string& destination) const;

protected:
/* Prints this object on the given stream. */
virtual void print(std::ostream& os) const = 0;

friend std::ostream& operator<<(std::ostream& os, const XMLNode& xn); }; /* Output operator for XML nodes. */ std::ostream& operator<<(std::ostream& os, const XMLNode& xn); /* Output operator for XML node pointers. */ std::ostream& operator<<(std::ostream& os, const XMLNode* xn); /* Reads an XML node from the given file descriptor. */ const XMLNode* read_node(int fd); typedef std::pair str_pair;
typedef std::vector str_pair_vec;
typedef std::vector str_vec;
typedef std::map str_str_map;
typedef std::vector node_vec;

/* ====================================================================== */
/* XMLText */

/*
* An XML text node.
*/
struct XMLText : public XMLNode {
/* The text of this node. */
std::string text;

/* Constructs an XML text node. */
XMLText(const std::string& text) : text(text) {}

/* Returns the text for this XML node. */
virtual std::string getText() const;

/* Returns the name for this XML node. */
virtual const std::string& getName() const;

/* Returns the parameter of this XML node with the given name. */
virtual const std::string& getParam(std::string name) const;

protected:
/* Prints this object on the given stream. */
virtual void print(std::ostream& os) const;
};

/* ====================================================================== */
/* XMLParent */

/*
* An XML parent node.
*/
struct XMLParent : public XMLNode {
/* Name of this node. */
std::string name;
/* Parameters of this node. */
str_str_map params;
/* Children of this node. */
node_vec children;

/* Constructs an XML parent node. */
XMLParent(const std::string& name) : name(name) {}

/* Deletes this XML parent node. */
virtual ~XMLParent();

/* Returns the ith child of this XML node. */
virtual const XMLNode* getChild(int i) const;

/* Returns the child of this XML node with the given name. */
virtual const XMLNode* getChild(const std::string& name) const;

/* Returns the size of this XML node. */
virtual int size() const;

/* Returns the text for this XML node. */
virtual std::string getText() const;

/* Returns the name for this XML node. */
virtual const std::string& getName() const;

/* Returns the parameter of this XML node with the given name. */
virtual const std::string& getParam(std::string name) const;

protected:
/* prints this object on the given stream. */
virtual void print(std::ostream& os) const;
};

#endif /* _STRXML_H */

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