1 /* @(#)parser4.c 8.1 (Berkeley) 6/6/93 */
2 /* $NetBSD: parser4.c,v 1.9 2009/04/14 08:50:06 lukem Exp $ */
5 * Copyright (c) 1983, 1993
6 * The Regents of the University of California. All rights reserved.
8 * This code is derived from software contributed to Berkeley by
9 * Edward Wang at The University of California, Berkeley.
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. Neither the name of the University nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 p_expr3_10(int level, struct value *v, char flag)
55 const char *opname = NULL;
57 if ((level == 10 ? p_expr11(v, flag)
58 : p_expr3_10(level + 1, v, flag)) < 0)
80 else if (token == T_NE)
106 else if (token == T_RS)
114 else if (token == T_MINUS)
136 if (l.v_type == V_ERR)
141 if ((level == 10 ? p_expr11(&r, flag)
142 : p_expr3_10(level + 1, &r, flag)) < 0) {
148 if (r.v_type == V_ERR)
158 if (l.v_type == V_STR) {
159 if (r.v_type == V_NUM)
160 if (p_convstr(&r) < 0)
163 if (r.v_type == V_STR)
164 if (p_convstr(&l) < 0)
169 if (r.v_type == V_STR) {
184 if (l.v_type == V_STR || r.v_type == V_STR) {
185 p_error("%s: Numeric operands required.",
207 if (l.v_type == V_STR) {
208 int tmp = strcmp(l.v_str, r.v_str);
220 v->v_num = l.v_num | r.v_num;
223 v->v_num = l.v_num ^ r.v_num;
226 v->v_num = l.v_num & r.v_num;
229 v->v_num = l.v_num == r.v_num;
232 v->v_num = l.v_num != r.v_num;
235 v->v_num = l.v_num < r.v_num;
238 v->v_num = l.v_num <= r.v_num;
241 v->v_num = l.v_num > r.v_num;
244 v->v_num = l.v_num >= r.v_num;
247 if (l.v_type == V_STR) {
249 if ((i = strlen(l.v_str)) > r.v_num)
251 v->v_str = str_ncpy(l.v_str, i);
254 v->v_num = l.v_num << r.v_num;
257 if (l.v_type == V_STR) {
259 if ((i = strlen(l.v_str)) > r.v_num)
263 v->v_str = str_cpy(l.v_str + i);
266 v->v_num = l.v_num >> r.v_num;
269 if (l.v_type == V_STR) {
270 v->v_str = str_cat(l.v_str, r.v_str);
273 v->v_num = l.v_num + r.v_num;
276 v->v_num = l.v_num - r.v_num;
279 v->v_num = l.v_num * r.v_num;
282 v->v_num = l.v_num / r.v_num;
285 v->v_num = l.v_num % r.v_num;