ident fixes

italianbot.py

#coding: utf-8
from sys import exit
import random
import re
from datetime import datetime

random.seed()
firstexchange = True
askedquestion = None
all_topics = []

# helpers
def topic(f):
    all_topics.append(f)
    def g(r):
        v = f(r)
        print 'enter', f, '(', r, ')', '==', v
        return v
    return g

def default(f):
     global current_topic
     current_topic = f

def ask(q):
  say(q)
  askedquestion = q

def say(w):
  if w:
    print 'me: '+ w
  askedquestion = None

def find_new_topic():
  current_topic = random.choice(all_topics)
  current_topic(None)

# actual meat
@default
@topic
def greetings(r):
  global firstexchange, askedquestion
  if r is None:
         hour = datetime.now().hour
         if hour < 16:
            goodday = 'buongiorno'
         else:
            goodday = 'buonasera'
         say(random.choice(['ciao', goodday]))
  elif (not firstexchange and r == 'ciao') or r in ['arrivederci', 'arrivederla']:
    say(r)
    exit()
  elif r in ['ciao', 'buonasera', 'buongiorno']:
    say(r)
  elif r == 'come sta?':
    say(random.choice(['bene, grazie', 'bene, grazie', 'molto bene, grazie', 'non troppo bene', 'non c\'è male']))
    ask(random.choice(['', 'e Lei?']))
  elif askedquestion == 'e Lei?':
    find_new_topic()
  else:
    return False

  firstexchange = False
  return True

@topic
def language(r):
    if r is None:
       say('parla italiano?')
    elif askedquestion == 'parla italiano?' and r == 'no':
      ask('parla inglese?')
    elif r == 'si':
      find_new_topic()
    elif r == 'parla italiano?':
      say('si')
    else:
      return False
    return True

@topic
def name(r):
    print 'name', '(', r, ')'
    if r is None:
       say('come si chiama?')
    elif askedquestion == 'come si chiama?':
      # get name: mi chiamo X
      m = re.match(r"mi chiamo (?P<name>\w+)", r)
      if m:
         name = m.group('name')
         say('piacere, ' + name)
      else:
         return False
    elif r == 'come si chiama?':
      say('mi chiamo bot')
    elif r == 'piacere':
      find_new_topic()
    else:
      return False
    return True

# main loop
print all_topics
def process(r):
  global current_topic

  if not current_topic(r):
    for topic in all_topics:
        if topic(r):
           current_topic = topic
           return
    ask('prego?')
    exit()

while True :
      r = raw_input('you: ')
      process(r)