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1 # This file is part of pybliographer 2 # 3 # Copyright (C) 1998-2006 Frederic GOBRY 4 # Email : gobry@pybliographer.org 5 # 6 # This program is free software; you can redistribute it and/or 7 # modify it under the terms of the GNU General Public License 8 # as published by the Free Software Foundation; either version 2 9 # of the License, or (at your option) any later version. 10 # 11 # This program is distributed in the hope that it will be useful, 12 # but WITHOUT ANY WARRANTY; without even the implied warranty of 13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 # GNU General Public License for more details. 15 # 16 # You should have received a copy of the GNU General Public License 17 # along with this program; if not, write to the Free Software 18 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 19 20 """ 21 Definition of the sort language. 22 23 Sorting according to fields A (ascending) and B (descending) can be 24 written:: 25 26 OrderBy ('A') & OrderBy ('B', asc = False) 27 28 """ 29 3032 33 for (sa, va), (sb, vb) in zip (a, b): 34 r = cmp (va, vb) 35 if r: return r * sa 36 37 return 038 43 44 54 55 75
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