1 /* $NetBSD: parser4.c,v 1.9 2009/04/14 08:50:06 lukem Exp $ */
4 * Copyright (c) 1983, 1993
5 * The Regents of the University of California. All rights reserved.
7 * This code is derived from software contributed to Berkeley by
8 * Edward Wang at The University of California, Berkeley.
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 #include <sys/cdefs.h>
38 static char sccsid[] = "@(#)parser4.c 8.1 (Berkeley) 6/6/93";
40 __RCSID("$NetBSD: parser4.c,v 1.9 2009/04/14 08:50:06 lukem Exp $");
59 p_expr3_10(int level, struct value *v, char flag)
63 const char *opname = 0;
65 if ((level == 10 ? p_expr11(v, flag)
66 : p_expr3_10(level + 1, v, flag)) < 0)
88 else if (token == T_NE)
114 else if (token == T_RS)
122 else if (token == T_MINUS)
144 if (l.v_type == V_ERR)
149 if ((level == 10 ? p_expr11(&r, flag)
150 : p_expr3_10(level + 1, &r, flag)) < 0) {
156 if (r.v_type == V_ERR)
166 if (l.v_type == V_STR) {
167 if (r.v_type == V_NUM)
168 if (p_convstr(&r) < 0)
171 if (r.v_type == V_STR)
172 if (p_convstr(&l) < 0)
177 if (r.v_type == V_STR) {
192 if (l.v_type == V_STR || r.v_type == V_STR) {
193 p_error("%s: Numeric operands required.",
215 if (l.v_type == V_STR) {
216 int tmp = strcmp(l.v_str, r.v_str);
228 v->v_num = l.v_num | r.v_num;
231 v->v_num = l.v_num ^ r.v_num;
234 v->v_num = l.v_num & r.v_num;
237 v->v_num = l.v_num == r.v_num;
240 v->v_num = l.v_num != r.v_num;
243 v->v_num = l.v_num < r.v_num;
246 v->v_num = l.v_num <= r.v_num;
249 v->v_num = l.v_num > r.v_num;
252 v->v_num = l.v_num >= r.v_num;
255 if (l.v_type == V_STR) {
257 if ((i = strlen(l.v_str)) > r.v_num)
259 v->v_str = str_ncpy(l.v_str, i);
262 v->v_num = l.v_num << r.v_num;
265 if (l.v_type == V_STR) {
267 if ((i = strlen(l.v_str)) > r.v_num)
271 v->v_str = str_cpy(l.v_str + i);
274 v->v_num = l.v_num >> r.v_num;
277 if (l.v_type == V_STR) {
278 v->v_str = str_cat(l.v_str, r.v_str);
281 v->v_num = l.v_num + r.v_num;
284 v->v_num = l.v_num - r.v_num;
287 v->v_num = l.v_num * r.v_num;
290 v->v_num = l.v_num / r.v_num;
293 v->v_num = l.v_num % r.v_num;