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/*************************************************************************
** XMLNode.h **
** **
** This file is part of dvisvgm -- the DVI to SVG converter **
** Copyright (C) 2005-2013 Martin Gieseking <martin.gieseking@uos.de> **
** **
** 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/>. **
*************************************************************************/
#ifndef XMLNODE_H
#define XMLNODE_H
#include <list>
#include <map>
#include <ostream>
#include <string>
#include "SpecialActions.h"
struct XMLNode
{
virtual ~XMLNode () {}
virtual XMLNode* clone () const =0;
virtual std::ostream& write (std::ostream &os) const =0;
virtual bool emit (std::ostream &os, XMLNode *stopElement);
virtual void append (XMLNode *child) {}
virtual void prepend (XMLNode *child) {}
};
class XMLElementNode : public XMLNode
{
typedef std::map<std::string,std::string> AttribMap;
typedef std::list<XMLNode*> ChildList;
public:
XMLElementNode (const std::string &name);
XMLElementNode (const XMLElementNode &node);
~XMLElementNode ();
XMLNode* clone () const {return new XMLElementNode(*this);}
void addAttribute (const std::string &name, const std::string &value);
void addAttribute (const std::string &name, double value);
void append (XMLNode *child);
void append (const std::string &str);
void prepend (XMLNode *child);
bool insertAfter (XMLNode *child, XMLNode *sibling);
bool insertBefore (XMLNode *child, XMLNode *sibling);
bool hasAttribute (const std::string &name) const;
const char* getAttributeValue (const std::string &name) const;
bool findDescendants (const char *name, const char *attr_name, std::vector<XMLElementNode*> &descendants);
std::ostream& write (std::ostream &os) const;
bool emit (std::ostream &os, XMLNode *stopElement);
bool empty () const {return _children.empty();}
const std::list<XMLNode*>& children () const {return _children;}
const std::string& getName () const {return _name;}
private:
std::string _name; // element name (<name a1="v1" .. an="vn">...</name>)
AttribMap _attributes;
ChildList _children; // child nodes
bool _emitted; // true if node has been (partly) emitted
};
class XMLTextNode : public XMLNode
{
public:
XMLTextNode (const std::string &str) : _text(str) {}
XMLNode* clone () const {return new XMLTextNode(*this);}
void append (XMLNode *node);
void append (XMLTextNode *node);
void append (const std::string &str);
void prepend (XMLNode *child);
std::ostream& write (std::ostream &os) const {return os << _text;}
private:
std::string _text;
};
class XMLCommentNode : public XMLNode
{
public:
XMLCommentNode (const std::string &str) : _text(str) {}
XMLNode* clone () const {return new XMLCommentNode(*this);}
std::ostream& write (std::ostream &os) const {return os << "<!--" << _text << "-->\n";}
private:
std::string _text;
};
class XMLDeclarationNode : public XMLNode
{
public:
XMLDeclarationNode (const std::string &n, const std::string &p);
XMLDeclarationNode (const XMLDeclarationNode &node);
~XMLDeclarationNode ();
XMLNode* clone () const {return new XMLDeclarationNode(*this);}
void append (XMLNode *child);
std::ostream& write (std::ostream &os) const;
bool emit (std::ostream &os, XMLNode *stopElement);
private:
std::string _name;
std::string _params;
std::list<XMLDeclarationNode*> _children;
bool _emitted;
};
class XMLCDataNode : public XMLNode
{
public:
XMLCDataNode (const std::string &d) : _data(d) {}
XMLNode* clone () const {return new XMLCDataNode(*this);}
std::ostream& write (std::ostream &os) const;
private:
std::string _data;
};
#endif
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