1 files changed, 54 insertions, 0 deletions
diff --git a/mailnews/import/src/nsImportScanFile.h b/mailnews/import/src/nsImportScanFile.h
new file mode 100644
index 0000000000..abe5b1cddc
--- /dev/null
+++ b/mailnews/import/src/nsImportScanFile.h
@@ -0,0 +1,54 @@
+/* -*- 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__ */