/usr/include/cxxtools/xml/node.h is in libcxxtools-dev 2.2.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* As a special exception, you may use this file as part of a free
* software library without restriction. Specifically, if other files
* instantiate templates or use macros or inline functions from this
* file, or you compile this file and link it with other files to
* produce an executable, this file does not by itself cause the
* resulting executable to be covered by the GNU General Public
* License. This exception does not however invalidate any other
* reasons why the executable file might be covered by the GNU Library
* General Public License.
*
* 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef cxxtools_Xml_Node_h
#define cxxtools_Xml_Node_h
#include <cxxtools/xml/api.h>
namespace cxxtools {
namespace xml {
/**
* @brief The super-class for all specific Node type of an XML document.
*
* A Node may for example be a opening tag, a closing tag, a comment or a doctype declaration.
* The supported node types are contained in the enum Type. To determine the type of a Node the
* method type() can be used.
*
* For every supported node type (except "Unknown") a specialized class exists that is derived
* from this Node class. Those classes contain more data and access methods to allow the user
* to determine the information specific to the node, for example the tag name for a StartElement.
*
* This class mainly provides the method type() to determine the type of the Node. The user
* may use this information to determine to which specialized class that is associated
* with the type this object can be cast; for the Node::StartElement type the Node object can be
* cast to StartElement, for example.
*
* @see Type
*/
class CXXTOOLS_XML_API Node {
public:
enum Type {
//! Unknown Node type (may not currently be supported)
Unknown = 0,
//! Xml declaration (see class XmlDeclaration)
StartDocument = 1,
//! Doctype (see class DocType)
DocType = 2,
//! End of the document (see EndDocument)
EndDocument = 3,
//! Start element aka opening tag (see StartElement)
StartElement = 4,
//! End element aka closing tag (see EndElement)
EndElement = 5,
//! Parsed content of a tag's body (see Characters)
Characters = 6,
//! Comment (see Comment)
Comment,
//! Processing instruction (see ProcessingInstruction)
ProcessingInstruction
};
public:
/**
* @brief Constructs a new Node object with the specified node type
* @see Type
*/
Node(Type type)
: _type(type)
{ }
//! Empty destructor
virtual ~Node()
{ }
/**
* @brief Returns the type of this Node that can be used to determine what specific
* Node this object is.
*
* This information may be used to determine to which specialized Node class that is associated
* with the type, this Node object can be cast; for the Node::StartElement type the Node object
* can be cast to StartElement, for example.
*
* @return The type of this node.
*/
Type type() const
{return _type;}
/**
* @brief Compares this Node object with the given node.
*
* The return value of the generic operator== method is always false. Class which derive
* from this class should always override this method and provide a useful comparison, for
* example by comparing the node type and contents of the current and given Node object
*
* @param node In subclasses this Node object is compared to the current Node object.
* @return In sub-classes $true is returned if this Node object is the same as the given
* Node object. In this generic class $false$ is always returned.
*/
virtual bool operator==(const Node& node) const
{ return false; }
virtual Node* clone() const = 0;
private:
//! The type of this Node.
Type _type;
};
}
}
#endif
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