paul@6 | 1 | #!/usr/bin/env python |
paul@6 | 2 | |
paul@6 | 3 | """ |
paul@6 | 4 | Tuple objects. |
paul@6 | 5 | |
paul@9 | 6 | Copyright (C) 2015, 2016 Paul Boddie <paul@boddie.org.uk> |
paul@6 | 7 | |
paul@6 | 8 | This program is free software; you can redistribute it and/or modify it under |
paul@6 | 9 | the terms of the GNU General Public License as published by the Free Software |
paul@6 | 10 | Foundation; either version 3 of the License, or (at your option) any later |
paul@6 | 11 | version. |
paul@6 | 12 | |
paul@6 | 13 | This program is distributed in the hope that it will be useful, but WITHOUT |
paul@6 | 14 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS |
paul@6 | 15 | FOR A PARTICULAR PURPOSE. See the GNU General Public License for more |
paul@6 | 16 | details. |
paul@6 | 17 | |
paul@6 | 18 | You should have received a copy of the GNU General Public License along with |
paul@6 | 19 | this program. If not, see <http://www.gnu.org/licenses/>. |
paul@6 | 20 | """ |
paul@6 | 21 | |
paul@9 | 22 | from __builtins__.iterator import listiterator |
paul@9 | 23 | from __builtins__.sequence import _getitem, _getslice |
paul@6 | 24 | |
paul@6 | 25 | class tuple(object): |
paul@6 | 26 | |
paul@6 | 27 | "Implementation of tuple." |
paul@6 | 28 | |
paul@6 | 29 | def __init__(self, args): pass |
paul@6 | 30 | |
paul@6 | 31 | def __getitem__(self, index): |
paul@6 | 32 | |
paul@6 | 33 | "Return the item or slice specified by 'index'." |
paul@6 | 34 | |
paul@6 | 35 | return _getitem(self, index) |
paul@6 | 36 | |
paul@6 | 37 | def __getslice__(self, start, end=None): |
paul@6 | 38 | |
paul@6 | 39 | "Return a slice starting from 'start', with the optional 'end'." |
paul@6 | 40 | |
paul@6 | 41 | return _tuple(_getslice(self, start, end)) |
paul@6 | 42 | |
paul@6 | 43 | def __len__(self): pass |
paul@6 | 44 | def __add__(self, other): pass |
paul@6 | 45 | def __str__(self): pass |
paul@6 | 46 | |
paul@6 | 47 | def __bool__(self): |
paul@6 | 48 | |
paul@6 | 49 | "Tuples are true if non-empty." |
paul@6 | 50 | |
paul@6 | 51 | return self.__len__() != 0 |
paul@6 | 52 | |
paul@6 | 53 | def __iter__(self): |
paul@6 | 54 | |
paul@6 | 55 | "Return an iterator." |
paul@6 | 56 | |
paul@6 | 57 | return listiterator(self) |
paul@6 | 58 | |
paul@6 | 59 | # Special implementation methods. |
paul@6 | 60 | |
paul@6 | 61 | def __get_single_item__(self, index): pass |
paul@6 | 62 | |
paul@6 | 63 | # vim: tabstop=4 expandtab shiftwidth=4 |