kmkbuiltin/expr.c: file revision 1.17 from OpenBSD
[kbuild-mirror.git] / src / ash / syntax.h
blobc40dac85f2ef8e518bfed7393d55c18d598ef70a
1 /* $NetBSD: syntax.h,v 1.2 2004/01/17 17:38:12 dsl Exp $ */
3 /*-
4 * Copyright (c) 1991, 1993
5 * The Regents of the University of California. All rights reserved.
7 * This code is derived from software contributed to Berkeley by
8 * Kenneth Almquist.
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
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
32 * SUCH DAMAGE.
35 #ifdef HAVE_SYS_CDEFS_H
36 #include <sys/cdefs.h>
37 #endif
38 #include <ctype.h>
40 /* Syntax classes */
41 #define CWORD 0 /* character is nothing special */
42 #define CNL 1 /* newline character */
43 #define CBACK 2 /* a backslash character */
44 #define CSQUOTE 3 /* single quote */
45 #define CDQUOTE 4 /* double quote */
46 #define CBQUOTE 5 /* backwards single quote */
47 #define CVAR 6 /* a dollar sign */
48 #define CENDVAR 7 /* a '}' character */
49 #define CLP 8 /* a left paren in arithmetic */
50 #define CRP 9 /* a right paren in arithmetic */
51 #define CEOF 10 /* end of file */
52 #define CCTL 11 /* like CWORD, except it must be escaped */
53 #define CSPCL 12 /* these terminate a word */
55 /* Syntax classes for is_ functions */
56 #define ISDIGIT 01 /* a digit */
57 #define ISUPPER 02 /* an upper case letter */
58 #define ISLOWER 04 /* a lower case letter */
59 #define ISUNDER 010 /* an underscore */
60 #define ISSPECL 020 /* the name of a special parameter */
62 #define PEOF (CHAR_MIN - 1)
63 #define SYNBASE (-PEOF)
64 /* XXX UPEOF is CHAR_MAX, so is a valid 'char' value... */
65 #define UPEOF ((char)PEOF)
68 #define BASESYNTAX (basesyntax + SYNBASE)
69 #define DQSYNTAX (dqsyntax + SYNBASE)
70 #define SQSYNTAX (sqsyntax + SYNBASE)
71 #define ARISYNTAX (arisyntax + SYNBASE)
73 /* These defines assume that the digits are contiguous */
74 #define is_digit(c) ((unsigned)((c) - '0') <= 9)
75 #define is_alpha(c) (((char)(c)) != UPEOF && ((c) < CTL_FIRST || (c) > CTL_LAST) && isalpha((unsigned char)(c)))
76 #define is_name(c) (((char)(c)) != UPEOF && ((c) < CTL_FIRST || (c) > CTL_LAST) && ((c) == '_' || isalpha((unsigned char)(c))))
77 #define is_in_name(c) (((char)(c)) != UPEOF && ((c) < CTL_FIRST || (c) > CTL_LAST) && ((c) == '_' || isalnum((unsigned char)(c))))
78 #define is_special(c) ((is_type+SYNBASE)[c] & (ISSPECL|ISDIGIT))
79 #define digit_val(c) ((c) - '0')
81 #ifdef _MSC_VER
82 extern char basesyntax[];
83 extern char dqsyntax[];
84 extern char sqsyntax[];
85 extern char arisyntax[];
86 extern char is_type[];
87 #else
88 extern const char basesyntax[];
89 extern const char dqsyntax[];
90 extern const char sqsyntax[];
91 extern const char arisyntax[];
92 extern const char is_type[];
93 #endif