mtlstream.h

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/*********************************************************************
** Copyright (c) 1992-2010 VT MAK
** All rights reserved.
*********************************************************************/

#ifndef mtlstream_H_
#define mtlstream_H_


#include <stdio.h>

#ifdef DtUSE_UTILITIES_NAMESPACE
namespace DtUSE_UTILITIES_NAMESPACE
{
#endif


class DT_DLL_MTL DtlInputStream
{
  public:
    DtlInputStream();
    virtual ~DtlInputStream() {} 

    virtual int peekc(void) = 0;
    virtual int ungetc(int c) = 0;
    virtual int fgetc(void) = 0;
    virtual int fgetc_past_whitespace(void) = 0;
    virtual int flush_until(char terminator) = 0;

    virtual int lineCount() { return lines;};
    virtual void incLineCount() { lines++;};
  protected:
    int lines;
};

class DT_DLL_MTL DtlFileInputStream : public DtlInputStream
{
  public:

    DtlFileInputStream(FILE *);
    virtual ~DtlFileInputStream();

    int peekc(void);
    int ungetc(int c);
    int fgetc(void);
    int fgetc_past_whitespace(void);
    int flush_until(char terminator);

  private:
    FILE *fp;
};

class DT_DLL_MTL DtlStringInputStream : public DtlInputStream
{
  public:
    DtlStringInputStream(char*);
    virtual ~DtlStringInputStream();

    int peekc(void);
    int ungetc(int c);
    int fgetc(void);
    int fgetc_past_whitespace(void);
    int flush_until(char terminator);

  private:
    char* input_string;
    int index;
};

#ifdef DtUSE_UTILITIES_NAMESPACE
} 
#endif

#endif