summaryrefslogtreecommitdiff
path: root/Build/source/texk/dvisvgm/dvisvgm-src/src/XMLNode.hpp
blob: 698b4b432055a27513557c6a9fa4923e856e3e9c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
/*************************************************************************
** XMLNode.hpp                                                          **
**                                                                      **
** This file is part of dvisvgm -- a fast DVI to SVG converter          **
** Copyright (C) 2005-2017 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_HPP
#define XMLNODE_HPP

#include <list>
#include <map>
#include <memory>
#include <ostream>
#include <string>
#include <vector>


class XMLNode
{
	public:
		virtual ~XMLNode () =default;
		virtual XMLNode* clone () const =0;
		virtual void clear () =0;
		virtual std::ostream& write (std::ostream &os) const =0;
};


class XMLElementNode : public XMLNode
{
	public:
		typedef std::map<std::string,std::string> AttribMap;
		typedef std::list<std::unique_ptr<XMLNode>> ChildList;

	public:
		XMLElementNode (const std::string &name);
		XMLElementNode (const XMLElementNode &node);
		XMLElementNode* clone () const override {return new XMLElementNode(*this);}
		void clear () override;
		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);
		void remove (const 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 getDescendants (const char *name, const char *attrName, std::vector<XMLElementNode*> &descendants) const;
		XMLElementNode* getFirstDescendant (const char *name, const char *attrName, const char *attrValue) const;
		std::ostream& write (std::ostream &os) const override;
		bool empty () const                  {return _children.empty();}
		const ChildList& 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
};


class XMLTextNode : public XMLNode
{
	public:
		XMLTextNode (const std::string &str) : _text(str) {}
		XMLTextNode (std::string &&str) : _text(std::move(str)) {}
		XMLTextNode* clone () const override {return new XMLTextNode(*this);}
		void clear () override {_text.clear();}
		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 override {return os << _text;}
		const std::string& getText () const {return _text;}

	private:
		std::string _text;
};


class XMLCommentNode : public XMLNode
{
	public:
		XMLCommentNode (const std::string &str) : _text(str) {}
		XMLCommentNode (std::string &&str) : _text(std::move(str)) {}
		XMLCommentNode* clone () const override {return new XMLCommentNode(*this);}
		void clear () override {_text.clear();}
		std::ostream& write (std::ostream &os) const override {return os << "<!--" << _text << "-->";}

	private:
		std::string _text;
};


class XMLCDataNode : public XMLNode
{
	public:
		XMLCDataNode () {}
		XMLCDataNode (const std::string &d) : _data(d) {}
		XMLCDataNode (std::string &&d) : _data(std::move(d)) {}
		XMLCDataNode* clone () const override {return new XMLCDataNode(*this);}
		void clear () override                {_data.clear();}
		void append (std::string &&str);
		std::ostream& write (std::ostream &os) const override;

	private:
		std::string _data;
};


inline std::ostream& operator << (std::ostream &os, const XMLElementNode &node) {return node.write(os);}
inline std::ostream& operator << (std::ostream &os, const XMLTextNode &node) {return node.write(os);}
inline std::ostream& operator << (std::ostream &os, const XMLCommentNode &node) {return node.write(os);}
inline std::ostream& operator << (std::ostream &os, const XMLCDataNode &node) {return node.write(os);}

#endif