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/****************************************************************************
* textstream.h
*
* This module contains all defines, typedefs, and prototypes for the
* C++ interface of textstream.cpp.
*
* from Persistence of Vision(tm) Ray Tracer version 3.6.
* Copyright 1991-2003 Persistence of Vision Team
* Copyright 2003-2004 Persistence of Vision Raytracer Pty. Ltd.
*---------------------------------------------------------------------------
* NOTICE: This source code file is provided so that users may experiment
* with enhancements to POV-Ray and to port the software to platforms other
* than those supported by the POV-Ray developers. There are strict rules
* regarding how you are permitted to use this file. These rules are contained
* in the distribution and derivative versions licenses which should have been
* provided with this file.
*
* These licences may be found online, linked from the end-user license
* agreement that is located at http://www.povray.org/povlegal.html
*---------------------------------------------------------------------------
* This program is based on the popular DKB raytracer version 2.12.
* DKBTrace was originally written by David K. Buck.
* DKBTrace Ver 2.0-2.12 were written by David K. Buck & Aaron A. Collins.
*---------------------------------------------------------------------------
* $File: //depot/povray/3.6-release/source/base/textstream.h $
* $Revision: #2 $
* $Change: 2939 $
* $DateTime: 2004/07/04 13:43:26 $
* $Author: root $
* $Log$
*****************************************************************************/
#ifndef TEXTSTREAM_H
#define TEXTSTREAM_H
#include <cstdio>
// must nuke these since everyone's favourite monopoly's cstdio still defines
// them for some reason (why not just use inlines like everyone else?)
#undef getc
#undef putc
#undef getchar
#undef putchar
#include "configbase.h"
#include "fileinputoutput.h"
#include "pov_err.h"
BEGIN_POV_BASE_NAMESPACE
const int ITEXTSTREAM_BUFFER_SIZE = DEFAULT_ITEXTSTREAM_BUFFER_SIZE;
class ITextStream
{
public:
struct FilePos
{
unsigned long offset;
int lineno;
};
ITextStream(const char *, unsigned int);
ITextStream(const char *, IStream *);
virtual ~ITextStream();
int getchar();
void ungetchar(int);
bool eof();
bool seekg(FilePos);
FilePos tellg();
int line() { return lineno; };
const char *name() { return filename; };
private:
IStream *stream;
char buffer[ITEXTSTREAM_BUFFER_SIZE];
unsigned long bufferoffset;
unsigned long maxbufferoffset;
unsigned long filelength;
unsigned long curpos ;
char *filename;
int lineno;
int ungetbuffer;
void RefillBuffer();
};
class OTextStream
{
public:
OTextStream(const char *, unsigned int, bool append = false);
OTextStream(const char *, OStream *);
virtual ~OTextStream();
void putchar(int);
void printf(const char *, ...);
const char *name() { return filename; };
private:
OStream *stream;
char *filename;
};
END_POV_BASE_NAMESPACE
#endif
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