sparser

type Parser interface {
	Parse(in io.Reader, rcvr Receiver) error
}

type ParserFactory func() (Parser, error)

type Range struct {
	MinOffs int
	MaxOffs int
	MinLine int
	// MaxLine could be larger than actual value. E.g. it could be max-int.
	MaxLine int
}

type Receiver interface {
	// Header of the block. It will be shown any pattern found in this block.
	// The buffer should be available until corresponding EndLevel is called.
	StartLevel(buffer []byte, header Range) error

	// Footer of the block. It will be shown any pattern found in this block.
	EndLevel(buffer []byte, footer Range) error

	// Final level block
	FinalBlock(buffer []byte, body Range) error
}

type ReceiverFunc struct {
	StartLevelFunc func(buffer []byte, header Range) error
	EndLevelFunc   func(buffer []byte, footer Range) error
	FinalBlockFunc func(buffer []byte, body Range) error
}