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/*******************************************************************************
* textstream.h
*
* This module contains all defines, typedefs, and prototypes for the
* C++ interface of textstream.cpp.
*
* ---------------------------------------------------------------------------
* Persistence of Vision Ray Tracer ('POV-Ray') version 3.7.
* Copyright 1991-2013 Persistence of Vision Raytracer Pty. Ltd.
*
* POV-Ray is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* POV-Ray 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
* ---------------------------------------------------------------------------
* POV-Ray 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/public/povray/3.x/source/base/textstream.h $
* $Revision: #1 $
* $Change: 6069 $
* $DateTime: 2013/11/06 11:59:40 $
* $Author: chrisc $
*******************************************************************************/
#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 "base/fileinputoutput.h"
#include "base/pov_err.h"
#include "base/types.h"
namespace pov_base
{
const int ITEXTSTREAM_BUFFER_SIZE = DEFAULT_ITEXTSTREAM_BUFFER_SIZE;
class ITextStream
{
public:
struct FilePos
{
POV_LONG offset;
POV_LONG lineno;
};
ITextStream(const UCS2 *, unsigned int);
ITextStream(const UCS2 *, IStream *);
virtual ~ITextStream();
int getchar();
void ungetchar(int);
bool eof() const;
bool seekg(FilePos);
FilePos tellg() const;
POV_LONG line() const { return lineno; };
const UCS2 *name() const { return filename.c_str(); };
private:
IStream *stream;
unsigned char buffer[ITEXTSTREAM_BUFFER_SIZE];
POV_ULONG bufferoffset;
POV_ULONG maxbufferoffset;
POV_ULONG filelength;
POV_ULONG curpos;
UCS2String filename;
POV_LONG lineno;
int ungetbuffer;
void RefillBuffer();
};
class OTextStream
{
public:
OTextStream(const UCS2 *, unsigned int, bool append = false);
OTextStream(const UCS2 *, OStream *);
virtual ~OTextStream();
void putchar(int);
void putraw(int);
void printf(const char *, ...);
void flush();
const UCS2 *name() const { return filename.c_str(); };
private:
OStream *stream;
UCS2String filename;
};
}
#endif
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