1 /* $NetBSD: syntax.h,v 1.2 2004/01/17 17:38:12 dsl Exp $ */
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35 #ifdef HAVE_SYS_CDEFS_H
36 #include <sys/cdefs.h>
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')
82 extern char basesyntax
[];
83 extern char dqsyntax
[];
84 extern char sqsyntax
[];
85 extern char arisyntax
[];
86 extern char is_type
[];
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
[];