#!/usr/bin/python

import os
import sys 
import readline
import glob

class tabCompleter(object):
  """ 
  A tab completer that can either complete from
  the filesystem or from a list.

  Partially taken from:
  http://stackoverflow.com/questions/5637124/tab-completion-in-pythons-raw-input
  """

  def pathCompleter(self,text,state):
    """ 
    This is the tab completer for systems paths.
    Only tested on *nix systems
    """
    line   = readline.get_line_buffer().split()

    return [x for x in glob.glob(text+'*')][state]

  
  def createListCompleter(self,ll):
    """ 
    This is a closure that creates a method that autocompletes from
    the given list.
    
    Since the autocomplete function can't be given a list to complete from
    a closure is used to create the listCompleter function with a list to complete
    from.
    """
    def listCompleter(text,state):
      line   = readline.get_line_buffer()

      if not line:
        return [c + " " for c in ll][state]

      else:
        return [c + " " for c in ll if c.startswith(line)][state]

    self.listCompleter = listCompleter