1 /* $NetBSD: arith_tokens.h,v 1.3 2017/07/24 13:21:14 kre Exp $ */ 2 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 * From FreeBSD who obtained it from dash (modified both times.) 37 */ 38 39 /* 40 * Tokens returned from arith_token() 41 * 42 * Caution, values are not arbitrary. 43 */ 44 45 #define ARITH_BAD 0 46 47 #define ARITH_ASS 1 48 49 #define ARITH_OR 2 50 #define ARITH_AND 3 51 #define ARITH_NUM 5 52 #define ARITH_VAR 6 53 #define ARITH_NOT 7 54 55 #define ARITH_BINOP_MIN 8 56 57 #define ARITH_LE 8 58 #define ARITH_GE 9 59 #define ARITH_LT 10 60 #define ARITH_GT 11 61 #define ARITH_EQ 12 /* Must be ARITH_ASS + ARITH_ASS_GAP */ 62 63 #define ARITH_ASS_BASE 13 64 65 #define ARITH_REM 13 66 #define ARITH_BAND 14 67 #define ARITH_LSHIFT 15 68 #define ARITH_RSHIFT 16 69 #define ARITH_MUL 17 70 #define ARITH_ADD 18 71 #define ARITH_BOR 19 72 #define ARITH_SUB 20 73 #define ARITH_BXOR 21 74 #define ARITH_DIV 22 75 76 #define ARITH_NE 23 77 78 #define ARITH_BINOP_MAX 24 79 80 #define ARITH_ASS_MIN ARITH_BINOP_MAX 81 #define ARITH_ASS_GAP (ARITH_ASS_MIN - ARITH_ASS_BASE) 82 83 #define ARITH_REMASS (ARITH_ASS_GAP + ARITH_REM) 84 #define ARITH_BANDASS (ARITH_ASS_GAP + ARITH_BAND) 85 #define ARITH_LSHIFTASS (ARITH_ASS_GAP + ARITH_LSHIFT) 86 #define ARITH_RSHIFTASS (ARITH_ASS_GAP + ARITH_RSHIFT) 87 #define ARITH_MULASS (ARITH_ASS_GAP + ARITH_MUL) 88 #define ARITH_ADDASS (ARITH_ASS_GAP + ARITH_ADD) 89 #define ARITH_BORASS (ARITH_ASS_GAP + ARITH_BOR) 90 #define ARITH_SUBASS (ARITH_ASS_GAP + ARITH_SUB) 91 #define ARITH_BXORASS (ARITH_ASS_GAP + ARITH_BXOR) 92 #define ARITH_DIVASS (ARITH_ASS_GAP + ARITH_BXOR) 93 94 #define ARITH_ASS_MAX 34 95 96 #define ARITH_LPAREN 34 97 #define ARITH_RPAREN 35 98 #define ARITH_BNOT 36 99 #define ARITH_QMARK 37 100 #define ARITH_COLON 38 101 #define ARITH_INCR 39 102 #define ARITH_DECR 40 103 #define ARITH_COMMA 41 104 105 /* 106 * Globals shared between arith parser, and lexer 107 */ 108 109 extern const char *arith_buf; 110 111 union a_token_val { 112 intmax_t val; 113 char *name; 114 }; 115 116 extern union a_token_val a_t_val; 117 118 extern int arith_lno, arith_var_lno; 119 120 int arith_token(void); 121