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/* This file is part of Strigi Desktop Search
*
* Copyright (C) 2006 Jos van den Oever <jos@vandenoever.info>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef XMLSTREAM_H
#define XMLSTREAM_H
#include <string>
#include <map>
#include <list>
// Although ostream isn't used *here*, other generated code
// which #includes this file does use std::ostream (while
// it doesn't #include <ostream> itself) so pull the header
// in here.
#include <ostream>
class SimpleNode;
class XMLStream {
private:
class Private;
Private* p;
public:
XMLStream(const std::string& xml);
~XMLStream();
void setFromAttribute(bool&, const char*);
void setFromAttribute(int&, const char*);
void setFromAttribute(std::string&, const char*);
const std::string& getTagName() const;
/**
* The node at which the XMLStream is currently positioned.
**/
const SimpleNode& currentNode() const;
/**
* Moves the XMLStream to the first visible child of the current node, and
* returns the new node. If the current node has no visible children,
* returns null, and retains the current node.
**/
const SimpleNode* firstChild() const;
/**
* Moves the XMLStream to the next sibling of the current node, and
* returns the new node. If the current node has no visible next sibling,
* returns null, and retains the current node.
**/
const SimpleNode* nextSibling() const;
/**
* Moves to and returns the closest visible ancestor node of the current
* node. If the search for parentNode attempts to step upward from the
* XMLStream's root node, or if it fails to find a visible ancestor node,
* this method retains the current position and returns null.
**/
const SimpleNode* parentNode() const;
};
XMLStream& operator>>(XMLStream& in, bool& e);
XMLStream& operator>>(XMLStream& in, int& e);
XMLStream& operator>>(XMLStream& in, std::string& e);
class SimpleNode {
friend class SimpleNodeParser;
private:
SimpleNode() :parent(0), next(0) {}
public:
const SimpleNode* parent;
const SimpleNode* next;
std::string tagname;
std::map<std::string, std::string> atts;
std::list<SimpleNode> nodes;
std::string text;
SimpleNode(const std::string& xml);
};
#endif
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