class Byebug::Interface

def afmt(msg, newline="\n")

Format msg with gdb-style annotation header 
def afmt(msg, newline="\n")
  "\032\032#{msg}#{newline}"
end

def aprint(msg) 

def aprint(msg)
  print afmt(msg)
end

def errmsg(*args)

Derived classed may want to override this to capture output.
Common routine for reporting byebug error messages. 
def errmsg(*args)
  if Byebug.annotate.to_i > 2
    aprint 'error-begin'
    print(*args)
    aprint ''
  else
    print '*** '
    print(*args)
  end
end

def initialize 

def initialize
  @have_readline = false
end