b7b065abe3
Introduced a new FindFileCallback to Registry to compliement the existing ReadFileCallback and WriteFileCallback. Added support for assign Find, Read and WriteFileCallbacks to osdDB::Options to enable plugins/applications to override the callbacks just for that read/write call and any nested file operations
136 lines
4.3 KiB
C++
136 lines
4.3 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2009 Robert Osfield
|
|
*
|
|
* This library is open source and may be redistributed and/or modified under
|
|
* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
|
|
* (at your option) any later version. The full license is in LICENSE file
|
|
* included with this distribution, and on the openscenegraph.org website.
|
|
*
|
|
* 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
|
|
* OpenSceneGraph Public License for more details.
|
|
*/
|
|
|
|
#ifndef OSGDB_XML_PARSER
|
|
#define OSGDB_XML_PARSER 1
|
|
|
|
#include <osgDB/Registry>
|
|
|
|
namespace osgDB {
|
|
|
|
// forward declare
|
|
class XmlNode;
|
|
|
|
/** read an Xml file, find the file in Options DataFilePathList.*/
|
|
extern OSGDB_EXPORT XmlNode* readXmlFile(const std::string& filename,const Options* options);
|
|
|
|
/** read an Xml file, find the file in osgDB::Registry's eaderWriter::Options DataFilePathList.*/
|
|
inline XmlNode* readXmlFile(const std::string& filename)
|
|
{
|
|
return readXmlFile(filename, osgDB::Registry::instance()->getOptions());
|
|
}
|
|
|
|
/** read an Xml from from an istream.*/
|
|
extern OSGDB_EXPORT XmlNode* readXmlStream(std::istream& fin);
|
|
|
|
/** XmlNode class for very basic reading and writing of xml files.*/
|
|
class OSGDB_EXPORT XmlNode : public osg::Referenced
|
|
{
|
|
public:
|
|
|
|
XmlNode();
|
|
|
|
enum NodeType
|
|
{
|
|
UNASSIGNED,
|
|
ATOM,
|
|
NODE,
|
|
GROUP,
|
|
ROOT,
|
|
COMMENT,
|
|
INFORMATION
|
|
};
|
|
|
|
typedef std::map< std::string, std::string > Properties;
|
|
typedef std::vector< osg::ref_ptr<XmlNode> > Children;
|
|
|
|
NodeType type;
|
|
std::string name;
|
|
std::string contents;
|
|
Properties properties;
|
|
Children children;
|
|
|
|
public:
|
|
|
|
class OSGDB_EXPORT Input
|
|
{
|
|
public:
|
|
|
|
Input();
|
|
Input(const Input&);
|
|
|
|
~Input();
|
|
|
|
typedef std::string::size_type size_type;
|
|
|
|
void open(const std::string& filename);
|
|
void attach(std::istream& istream);
|
|
|
|
void readAllDataIntoBuffer();
|
|
|
|
operator bool () const { return _currentPos<_buffer.size(); }
|
|
|
|
int get() { if (_currentPos<_buffer.size()) return _buffer[_currentPos++]; else return -1; }
|
|
|
|
int operator [] (size_type i) const { if ((_currentPos+i)<_buffer.size()) return _buffer[_currentPos+i]; else return -1; }
|
|
|
|
void operator ++ () { if (_currentPos<_buffer.size()) ++_currentPos; }
|
|
|
|
void operator += (size_type n) { if ((_currentPos+n)<_buffer.size()) _currentPos+=n; else _currentPos = _buffer.size(); }
|
|
|
|
void skipWhiteSpace();
|
|
|
|
std::string substr(size_type pos, size_type n=std::string::npos) { return (_currentPos<_buffer.size()) ? _buffer.substr(_currentPos+pos,n) : std::string(); }
|
|
|
|
size_type find(const std::string& str)
|
|
{
|
|
if (_currentPos<_buffer.size())
|
|
{
|
|
size_type pos = _buffer.find(str, _currentPos);
|
|
if (pos==std::string::npos) return std::string::npos;
|
|
else return pos-_currentPos;
|
|
} else return std::string::npos;
|
|
}
|
|
|
|
bool match(const std::string& str) { return (_currentPos<_buffer.size()) ? _buffer.compare(_currentPos, str.size(), str)==0 : false; }
|
|
|
|
|
|
typedef std::map< std::string, int > ControlToCharacterMap;
|
|
typedef std::map< int, std::string> CharacterToControlMap;
|
|
|
|
void addControlToCharacter(const std::string& control, int c);
|
|
|
|
ControlToCharacterMap _controlToCharacterMap;
|
|
CharacterToControlMap _characterToControlMap;
|
|
|
|
private:
|
|
|
|
void setUpControlMappings();
|
|
|
|
size_type _currentPos;
|
|
|
|
std::ifstream _fin;
|
|
std::string _buffer;
|
|
|
|
};
|
|
|
|
bool read(Input& input);
|
|
|
|
bool write(std::ostream& fout) const;
|
|
bool writeString(std::ostream& fout, const std::string& str) const;
|
|
|
|
};
|
|
|
|
}
|
|
#endif
|