fsCXmlFileReader.h

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/********************************************************************
*
*       Created:        17/5/2012   9:18
*
*       File:           fsCXmlFileReader.h
*
*       Author:         Mick Waites
*       
*       Purpose:        Provides stream like read access to a memory buffer
*                               Sourced from IwGame
*
*********************************************************************/
 
#ifndef fsCXmlFileReaderhdr
#define fsCXmlFileReaderhdr
 
#include "fsStr.h"
 
// 
//
// IwGame - Cross Platform Multi-purpose Game Engine using the Marmalade SDK
//
// Developed by Matthew Hopwood of Pocketeers Limited - www.pocketeers.co.uk
//
// For updates, tutorials and more details check out my blog at www.drmop.com
//
// This code is provided free of charge and without any warranty whatsoever. The only restriction to its usage is that this header must remain intact and visible in all IwGame engine files.
// If you use this engine in your product, whilst it is not mandatory, a mention of the IwGame engine would be nice or a quick email to let us know where it is being used.
//
//
 
class fsCXmlFileReader
{
        // Properties
protected:
        char* Data; // Streams data
        int Position; // Current position in stream
        int Length; // Length of stream (actual allocated memory sie is aligned to 32 bytes)
        bool EndOfFile; // true if end of stream reached
        bool NoRelease; // If true data buffer will not be released when object deleted
public:
        // Properties End
 
private:
public:
        fsCXmlFileReader(bool no_release) : Data(nullptr), Position(0), Length(0), EndOfFile(false), NoRelease(no_release)
        {
        }
 
        fsCXmlFileReader() : Data(nullptr), Position(0), Length(0), EndOfFile(false), NoRelease(false)
        {
        }
 
        virtual ~fsCXmlFileReader() { Release(); }
 
        bool Init(fsStr& pFileStr);
        bool Init(int nLen);
        virtual void Release();
 
        char* getData() { return Data; }
 
        void setData(char* data)
        {
                if (Data != nullptr)
                        delete[] Data;
                Data = data;
                Position = 0;
                EndOfFile = false;
        }
 
        void setData(char* data, int length)
        {
                if (Data != nullptr)
                        delete[] Data;
                Data = data;
                Position = 0;
                Length = length;
                EndOfFile = false;
        }
 
        int Skip(int nNumBytes);
        int SetPos(int nPos);
        int GetPos() const { return Position; }
        int GetLength() const { return Length; }
        bool IsEOF() const { return EndOfFile; }
        int Remaining() const { return Length - Position; }
        char GetByte();
        float GetByteAsFloat();
        char GetUByte();
        int GetUByteAsInt();
        float GetUByteAsFloat();
        int GetBytes(char* pData, int nCount);
        int GetBytes(short* pData, int nCount);
        int GetBytes(int* pData, int nCount);
        int GetBytes(float* pData, int nCount);
        int GetUBytes(char* pData, int nCount);
        int GetUBytes(int* pData, int nCount);
        int GetUBytes(float* pData, int nCount);
        int GetChars(char* pData, int nCount);
        short GetShort();
        short GetShortSwab();
        float GetShortAsFloat();
        int GetUShort();
        float GetUShortAsFloat();
        int GetShorts(short* pData, int nCount);
        int GetShorts(int* pData, int nCount);
        int GetShorts(float* pData, int nCount);
        int GetUShorts(short* pData, int nCount);
        int GetUShorts(int* pData, int nCount);
        int GetUShorts(float* pData, int nCount);
        int GetInt();
        int GetIntSwab();
        int GetInts(int* pData, int nCount);
        int GetInts(float* pData, int nCount);
        float GetFloat();
        int GetNextString(fsStr* pString);
        int GetNextString(char* pString, int max_len);
        int GetNextQuotedStringAsint(int* pNum);
        bool GetNextQuotedString(fsStr* pString);
        bool GetNextQuotedString(char* pString, int max_len);
        bool GetNextOccuranceOf(char find);
        int GetNextTag(char tag_start_char, char tag_end_char, int range, int& start_pos);
        int GetNextTagOrValue(char tag_start_char, char tag_end_char, int range, int& start_pos);
        int FindString(const char* pString, int str_len) const;
 
        int SkipToWhitespaceInTag();
        int SkipToNoneWhitespaceInTag();
        int SkipToCharInTag(char chr);
 
        int GetLineNumber(int pos) const;
 
        int CalculateCheckSum();
        int StripXMLComments();
};
 
 
#endif