1 /* vi: set sw=4 ts=4: */
5 * Copyright (C) Manuel Nova III <mnovoa3@bellsouth.net>
6 * and Vladimir Oleynik <vodz@usa.net>
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
31 char process_escape_sequence(const char **ptr)
33 static const char charmap[] = {
34 'a', 'b', 'f', 'n', 'r', 't', 'v', '\\', 0,
35 '\a', '\b', '\f', '\n', '\r', '\t', '\v', '\\', '\\' };
45 for ( num_digits = 0 ; num_digits < 3 ; ++num_digits) {
46 if ((*q < '0') || (*q > '7')) { /* not a digit? */
49 n = n * 8 + (*q++ - '0');
52 if (num_digits == 0) { /* mnemonic escape sequence? */
53 for (p=charmap ; *p ; p++) {
59 n = *(p+(sizeof(charmap)/2));
62 /* doesn't hurt to fall through to here from mnemonic case */
63 if (n > UCHAR_MAX) { /* is octal code too big for a char? */
64 n /= 8; /* adjust value and */
65 --q; /* back up one char */