1/*-
 2 * SPDX-License-Identifier: BSD-3-Clause
 3 *
 4 * Copyright (c) 1993
 5 *      The Regents of the University of California.  All rights reserved.
 6 * Copyright (c) 2007
 7 *      Herbert Xu <herbert@gondor.apana.org.au>.  All rights reserved.
 8 *
 9 * This code is derived from software contributed to Berkeley by
10 * Kenneth Almquist.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 *    notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 *    notice, this list of conditions and the following disclaimer in the
19 *    documentation and/or other materials provided with the distribution.
20 * 3. Neither the name of the University nor the names of its contributors
21 *    may be used to endorse or promote products derived from this software
22 *    without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 */
36
37#include "shell.h"
38
39#define ARITH_ASS 1
40
41#define ARITH_OR  2
42#define ARITH_AND 3
43#define ARITH_BAD 4
44#define ARITH_NUM 5
45#define ARITH_VAR 6
46#define ARITH_NOT 7
47
48#define ARITH_BINOP_MIN 8
49#define ARITH_LE        8
50#define ARITH_GE        9
51#define ARITH_LT        10
52#define ARITH_GT        11
53#define ARITH_EQ        12
54#define ARITH_REM       13
55#define ARITH_BAND      14
56#define ARITH_LSHIFT    15
57#define ARITH_RSHIFT    16
58#define ARITH_MUL       17
59#define ARITH_ADD       18
60#define ARITH_BOR       19
61#define ARITH_SUB       20
62#define ARITH_BXOR      21
63#define ARITH_DIV       22
64#define ARITH_NE        23
65#define ARITH_BINOP_MAX 24
66
67#define ARITH_ASS_MIN   24
68#define ARITH_REMASS    24
69#define ARITH_BANDASS   25
70#define ARITH_LSHIFTASS 26
71#define ARITH_RSHIFTASS 27
72#define ARITH_MULASS    28
73#define ARITH_ADDASS    29
74#define ARITH_BORASS    30
75#define ARITH_SUBASS    31
76#define ARITH_BXORASS   32
77#define ARITH_DIVASS    33
78#define ARITH_ASS_MAX   34
79
80#define ARITH_LPAREN 34
81#define ARITH_RPAREN 35
82#define ARITH_BNOT   36
83#define ARITH_QMARK  37
84#define ARITH_COLON  38
85
86extern const char *arith_buf;
87
88union yystype {
89  arith_t val;
90  char   *name;
91};
92
93extern union yystype yylval;
94
95arith_t strtoarith_t(const char *restrict nptr, char **restrict endptr);
96int     yylex(void);