#ifndef __IMFBoundary_h__
# define __IMFBoundary_h__

#include "Parser.h"

namespace coreutils {

   ///
   /// IMFBoundary detects a MIME multipart boundary line in the shared
   /// StreamReader - either an ordinary boundary ("\r\n--" + boundary +
   /// "\r\n", meaning another part follows) or the closing boundary
   /// ("\r\n--" + boundary + "--", meaning this was the last part).
   /// Resumable: if the boundary text has been seen but there isn't yet
   /// enough buffered data to tell an ordinary boundary from the closing
   /// one, parse() reports INCOMPLETE without committing the cursor past
   /// the ambiguous point.
   ///

   class IMFBoundary : public Parser {

    public:

      IMFBoundary(StreamReader &reader, ZString boundary);

      ///
      /// Valid once doParse() has returned Status::COMPLETE - true if this
      /// was the closing boundary (no further parts follow).
      ///

      bool isLast();

    protected:

      Status parse() override;

    private:

      enum State { PREFIX, TAIL } state = PREFIX;
      ZString boundary;
      bool last = false;

   };

}

#endif