| paul@6 | 1 | #!/usr/bin/env python |
| paul@6 | 2 | |
| paul@6 | 3 | """ |
| paul@6 | 4 | Buffer object. |
| paul@6 | 5 | |
| paul@206 | 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@206 | 22 | from native import _list_init, _list_append, _list_concat, _buffer_str |
| paul@206 | 23 | |
| paul@6 | 24 | class buffer(object): |
| paul@206 | 25 | |
| paul@206 | 26 | "A buffer, used to build strings." |
| paul@206 | 27 | |
| paul@209 | 28 | def __init__(self, args=None, size=0): |
| paul@206 | 29 | |
| paul@206 | 30 | "Initialise a buffer from the given 'args' or the given 'size'." |
| paul@206 | 31 | |
| paul@209 | 32 | if args is not None: |
| paul@209 | 33 | n = len(args) |
| paul@209 | 34 | elif isinstance(size, int): |
| paul@209 | 35 | n = size |
| paul@209 | 36 | else: |
| paul@209 | 37 | raise TypeError(size) |
| paul@209 | 38 | |
| paul@209 | 39 | self.__data__ = _list_init(n) |
| paul@206 | 40 | |
| paul@206 | 41 | # Append all arguments in string form to the buffer. |
| paul@206 | 42 | |
| paul@206 | 43 | if args: |
| paul@206 | 44 | for arg in args: |
| paul@206 | 45 | _list_append(self, str(arg)) |
| paul@206 | 46 | |
| paul@206 | 47 | def append(self, s): |
| paul@206 | 48 | |
| paul@206 | 49 | "Append 's' to the buffer." |
| paul@206 | 50 | |
| paul@206 | 51 | if isinstance(s, buffer): |
| paul@206 | 52 | _list_concat(self, s) |
| paul@206 | 53 | elif isinstance(s, string): |
| paul@206 | 54 | _list_append(self, s) |
| paul@206 | 55 | else: |
| paul@217 | 56 | _list_append(self, str(s)) |
| paul@206 | 57 | |
| paul@206 | 58 | def __str__(self): |
| paul@206 | 59 | |
| paul@206 | 60 | "Return a string representation." |
| paul@206 | 61 | |
| paul@206 | 62 | return _buffer_str(self) |
| paul@6 | 63 | |
| paul@6 | 64 | # vim: tabstop=4 expandtab shiftwidth=4 |
