import readline, signal
prompt = 'GigiX > '

def signal_handler(signal, frame):
    print
    input(prompt)
    return

signal.signal(signal.SIGINT, signal_handler)
readline.parse_and_bind("tab: complete")

class completer:
        def __init__(self, tree):
            self.tree = tree

        def _parser(self, line, search):
            if (search is None) or (callable(search) == True):
                return []
            elif len(line) == 0:
                return [x for x in search]
            elif len(line) == 1 and readline.get_line_buffer()[-1] != ' ':
                return ['%s ' % x for x in search if x.startswith(line[0])]
            else:
                return self._parser(line[1:], search[line[0]])
            return []

        def complete(self, text, state):
            line = readline.get_line_buffer().split()
            results = self._parser(line, self.tree)
            return results[state]

def linux_sles_12():
    print('Je suis Linux SLES 12')

tree = {
    'unix': {
        'solaris': {
            '8':None,
            '9':None,
            '10':None,
            '11':None,
        }
    },
    'linux': {
        'debian': {
            'buzz':None,
            'rex':None,
            'bo':None,
            'hamm':None,
            'slink':None,
            'patato':None,
            'woody':None,
            'sarge':None,
            'etch':None,
            'lenny':None,
            'squeeze':None,
            'wheezy':None,
            'jessie':None,
    },
        'RHEL': {
            '3':None,
            '4':None,
            '5':None,
            '6':None,
            '7':None,
        },
        'SLES': {
            '9':None,
            '10':None,
            '11':None,
            '12':linux_sles_12,
        }
    },
    'windows': {
        'xp':None,
        'vista':None,
        'seven':None,
        '8':None,
        '10':None,
    }
}

readline.set_completer(completer(tree).complete)
l = ''
while l != ('quit' or 'exit'):
    try:
            l = input(prompt)
            eval("tree['"+"']['".join(l.split())+"']()")
    except EOFError:
            print('Bye')
            break
    except:
        continue