nsImportScanFile.h

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef nsImportScanFile_h__

#define nsImportScanFile_h__

#include "mozilla/Attributes.h"

#include "nsCOMPtr.h"

#include "nsIInputStream.h"

class nsImportScanFile {

 public:

  nsImportScanFile();

  virtual ~nsImportScanFile();

  void InitScan(nsIInputStream* pInputStream, uint8_t* pBuf, uint32_t sz);

  void CleanUpScan(void);

  virtual bool Scan(bool* pDone);

 protected:

  void ShiftBuffer(void);

  bool FillBufferFromFile(void);

  virtual bool ScanBuffer(bool* pDone);

 protected:

  nsCOMPtr<nsIInputStream> m_pInputStream;

  uint8_t* m_pBuf;

  uint32_t m_bufSz;

  uint32_t m_bytesInBuf;

  uint32_t m_pos;

  bool m_eof;

  bool m_allocated;

};

class nsImportScanFileLines : public nsImportScanFile {

 public:

  nsImportScanFileLines() { m_needEol = false; }

  void ResetLineScan(void) { m_needEol = false; }

  virtual bool ProcessLine(uint8_t* /* pLine */, uint32_t /* len */,

                           bool* /* pDone */) {

    return true;

 protected:

  virtual bool ScanBuffer(bool* pDone) override;

  bool m_needEol;

};

#endif /* nsImportScanFile_h__ */