XMLReader.h

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// @(#)root/core/utils:$Id: XMLReader.h 35213 2010-09-08 16:39:04Z axel $
// Author: Velislava Spasova, 2010-09-16
 
/*************************************************************************
 * Copyright (C) 1995-2011, Rene Brun and Fons Rademakers.               *
 * All rights reserved.                                                  *
 *                                                                       *
 * For the licensing terms see $ROOTSYS/LICENSE.                         *
 * For the list of contributors see $ROOTSYS/README/CREDITS.             *
 *************************************************************************/
 
//////////////////////////////////////////////////////////////////////////
//                                                                      //
// XML parsing class                                                    //
//                                                                      //
//////////////////////////////////////////////////////////////////////////
 
 
#ifndef ROOT__XMLREADER_H__
#define ROOT__XMLREADER_H__
 
#include <iostream>
#include <fstream>
#include <sstream>
#include <vector>
#include <map>
 
class SelectionRules;
 
namespace cling {
   class Interpreter;
}
 
class XMLReader {
public:
   // class to temporarily store the arguments of a tag (if such are present)
   class Attributes {
   public:
      std::string fName;
      std::string fValue;
      Attributes(){}
      Attributes(const std::string& nName, const std::string& nValue) : fName(nName), fValue(nValue) {}
   };
 
private:
   long fCount;
   cling::Interpreter &fInterp;
 
   //SelectionRules& fSelectionRules;
   //std::string fXMLFileName;
   //std::ifstream fXMLInStream;
 
   // enumeration - lists the posible tag elements in the selection file
   enum ETagNames {
      kClass,
      kFunction,
      kVariable,
      kEnum,
      kMethod,
      kEndMethod,
      kField,
      kEndField,
      kProperties,
      kVersion,
      kStartIgnore,
      kLcgdict,
      kSelection,
      kExclusion,
      kEndClass,
      kEndStruct,
      kEndSelection,
      kEndExclusion,
      kEndLcgdict,
      kBeginIoread,
      kEndIoread,
      kBeginIoreadRaw,
      kEndIoreadRaw,
      kInvalid,
      kNumTagNames,
      kTypedef
   };
 
   // used to create string to tag kind association to use in switch constructions
   static std::map<std::string, ETagNames> fgMapTagNames;
   static void PopulateMap();
 
   static bool GetNextTag(std::ifstream &file, std::string& out, int& lineCount); // gets the next tag out of the in stream
   static bool IsStandaloneTag(const std::string& tag); // returns true if the tag is standalone - i.e. <class name = "x" />
   static bool IsClosingTag(const std::string& tag); // eturns true if the tag is closing tag, i.e. </class>
   static ETagNames GetNameOfTag(const std::string& tag, std::string& name); // gets name of the tag, i.e. class, function ..
   //static bool HasTagArguments(const std::string& tag);
   static bool GetAttributes(const std::string& tag, std::vector<Attributes>& out, const char* lineNum); //writes the attr. names in values in the
   // vector of Attribute objects passed as a second parameter
   static bool CheckIsTagOK(const std::string& tag); // for a given tag checks if the tag is the correct format, i.e
   // < class name="x"> will return false but <class name="x"> will return true
   static bool IsTagComment(const std::string& tag); // Check that this is not an XML comment: <!-- comment -->
 
public:
   // Constructors
   XMLReader(cling::Interpreter &interp) : fCount(0), fInterp(interp) {}
   /* XMLReader(const std::string& fileName):
    fXMLFileName(fileName) {}*/
 
   //const std::string& getXMLFileName();
   //std::ifstream& getXMLInStream();
   //std::ifstream& openXMLInStream(const std::string& fileName);
 
   // main parsing function - should be called over an open input file stream
   bool Parse(const std::string &fileName, SelectionRules& out);
//    bool Parse(std::ifstream &file, SelectionRules& out);
 
};
 
#endif