1 /* vi: set sw=4 ts=4: */
5 * Copyright (C) Manuel Novoa III <mjn3@codepoet.org>
6 * and Vladimir Oleynik <dzo@simtreas.ru>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
30 #define WANT_HEX_ESCAPES 1
32 /* Usual "this only works for ascii compatible encodings" disclaimer. */
34 #define _tolower(X) ((X)|((char) 0x20))
36 char bb_process_escape_sequence(const char **ptr)
38 static const char charmap[] = {
39 'a', 'b', 'f', 'n', 'r', 't', 'v', '\\', 0,
40 '\a', '\b', '\f', '\n', '\r', '\t', '\v', '\\', '\\' };
44 unsigned int num_digits;
54 #ifdef WANT_HEX_ESCAPES
63 d = (unsigned int)(*q - '0');
64 #ifdef WANT_HEX_ESCAPES
66 d = ((unsigned int)(_tolower(*q) - 'a')) + 10;
71 #ifdef WANT_HEX_ESCAPES
72 if ((base == 16) && (!--num_digits)) {
87 } while (++num_digits < 3);
89 if (num_digits == 0) { /* mnemonic escape sequence? */
97 n = *(p+(sizeof(charmap)/2));
108 c-file-style: "linux"