parser/state

    cfunction

    (parser/state parser &opt key)
    
    Returns a representation of the internal state of the parser. If a key
    is passed, only that information about the state is returned. Allowed
    keys are:
    
      :delimiters - Each byte in the string represents a nested data
    structure. For example, if the parser state is '(["', then the parser
    is in the middle of parsing a string inside of square brackets inside
    parentheses. Can be used to augment a REPL prompt.  :frames - Each
    table in the array represents a 'frame' in the parser state. Frames
    contain information about the start of the expression being parsed as
    well as the type of that expression and some type-specific information.