1 /* inexactify.c - PSPP test program.
2 Copyright (C) 2006 Free Software Foundation, Inc.
3 Written by Ben Pfaff <blp@gnu.org>.
5 This program is free software; you can redistribute it and/or
6 modify it under the terms of the GNU General Public License as
7 published by the Free Software Foundation; either version 2 of the
8 License, or (at your option) any later version.
10 This program is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
26 /* Replaces insignificant digits by # to facilitate textual
27 comparisons. Not a perfect solution to the general-purpose
28 comparison problem, because rounding that affects earlier
29 digits can still cause differences. */
33 bool in_quotes = false;
34 bool in_exponent = false;
46 in_quotes = !in_quotes;
50 else if (in_quotes && !in_exponent)
52 if (strchr ("+dDeE", c) != NULL || (c == '-' && digits))
54 else if (strchr ("0123456789}JKLMNOPQR", c) != NULL)
56 if (digits || c >= '1')
59 c = isdigit (c) ? '#' : '@';