Posts tagged "pony"

Quicksort February 14, 2016

Push-parsing and Pony July 2, 2016

Hey, let’s write a quick parser! A simple one, for the simple version of hoc from The Unix Programming Environment. The chapter on hoc is used to demonstrate the use of the yacc parser; it’s a dandy example to play with parsing.

I haven’t hand written a parser in a long time, so that’s what I want to do now. But there is a bit of a catch: it reads from stdin in Pony. And the interface for that is:

interface StdinNotify
  """
  Notification for data arriving via stdin.
  """
  fun ref apply(data: Array[U8] iso) =>
    """
    Called when data is available on stdin.
    """
    None

  fun ref dispose() =>
    """
    Called when no more data will arrive on stdin.
    """
    None