nuts

type Block struct {
	// Source holds the text in a byte slice
	Source []byte
	// Cursor holds the location of where to start reading or writing
	Cursor int
}

type Document struct {
	// Name holds a human friendly name as a label
	Name string
	// Type is an integer value representing one of the text types supported (e.g. TextPlain).
	Type int
	// Meta is a map to any additional data associated with the text, e.g. File Info, DOI content, etc.
	Meta map[string]interface{}
	// Cursor holds the document level cursor (byte count into document)
	Cursor int
	// Source holds an ordered list of Block pointers
	Source []*Block
}

type Formatter interface {
	String() string
	Parse([]byte) (*Block, error)
	Render(io.Writer, *Block) error
}