1 /* $NetBSD: char.h,v 1.9 2012/01/19 02:42:53 christos Exp $ */
2 
3 /*-
4  * Copyright (c) 1980, 1991, 1993
5  *        The Regents of the University of California.  All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. Neither the name of the University nor the names of its contributors
16  *    may be used to endorse or promote products derived from this software
17  *    without specific prior written permission.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29  * SUCH DAMAGE.
30  *
31  *        @(#)char.h          8.1 (Berkeley) 5/31/93
32  */
33 
34 #ifndef _CHAR_H_
35 #define _CHAR_H_
36 
37 #include <ctype.h>
38 
39 extern unsigned short _cmap[];
40 
41 #ifndef NLS
42 extern unsigned char _cmap_lower[], _cmap_upper[];
43 
44 #endif
45 
46 #define   _QF       0x0001              /* '" (Forward quotes) */
47 #define   _QB       0x0002              /* ` (Backquote) */
48 #define   _SP       0x0004              /* space and tab */
49 #define   _NL       0x0008              /* \n */
50 #define   _META     0x0010              /* lex meta characters, sp #'`";&<>()|\t\n */
51 #define   _GLOB     0x0020              /* glob characters, *?{[` */
52 #define   _ESC      0x0040              /* \ */
53 #define   _DOL      0x0080              /* $ */
54 #define   _DIG      0x0100              /* 0-9 */
55 #define   _LET      0x0200              /* a-z, A-Z, _ */
56 #define   _UP       0x0400              /* A-Z */
57 #define   _LOW      0x0800              /* a-z */
58 #define   _XD       0x1000              /* 0-9, a-f, A-F */
59 #define   _CMD      0x2000              /* lex end of command chars, ;&(|` */
60 #define _CTR        0x4000              /* control */
61 #define _PUN        0x8000              /* punctuation */
62 
63 #define cmap(c, bits)         \
64           (((c) & QUOTE) ? 0 : (_cmap[(unsigned char)(c)] & (bits)))
65 
66 #define isglob(c)   cmap(c, _GLOB)
67 #define isspc(c)    cmap(c, _SP)
68 #define ismeta(c)   cmap(c, _META)
69 #define iscmdmeta(c)          cmap(c, _CMD)
70 #define letter(c)   (((c) & QUOTE) ? 0 : \
71                                (isalpha((unsigned char) (c)) || (c) == '_'))
72 #define alnum(c)    (((c) & QUOTE) ? 0 : \
73                              (isalnum((unsigned char) (c)) || (c) == '_'))
74 #ifdef NLS
75 #define Isspace(c)  (((c) & QUOTE) ? 0 : isspace((unsigned char) (c)))
76 #define Isdigit(c)  (((c) & QUOTE) ? 0 : isdigit((unsigned char) (c)))
77 #define Isalpha(c)  (((c) & QUOTE) ? 0 : isalpha((unsigned char) (c)))
78 #define Islower(c)  (((c) & QUOTE) ? 0 : islower((unsigned char) (c)))
79 #define Isupper(c)  (((c) & QUOTE) ? 0 : isupper((unsigned char) (c)))
80 #define Tolower(c)  (((c) & QUOTE) ? 0 : tolower((unsigned char) (c)))
81 #define Toupper(c)  (((c) & QUOTE) ? 0 : toupper((unsigned char) (c)))
82 #define Isxdigit(c) (((c) & QUOTE) ? 0 : isxdigit((unsigned char) (c)))
83 #define Isalnum(c)  (((c) & QUOTE) ? 0 : isalnum((unsigned char) (c)))
84 #define Iscntrl(c)  (((c) & QUOTE) ? 0 : iscntrl((unsigned char) (c)))
85 #define Isprint(c)  (((c) & QUOTE) ? 0 : isprint((unsigned char) (c)))
86 #else
87 #define Isspace(c)  cmap(c, _SP|_NL)
88 #define Isdigit(c)  cmap(c, _DIG)
89 #define Isalpha(c)  (cmap(c,_LET) && !(((c) & META) && AsciiOnly))
90 #define Islower(c)  (cmap(c,_LOW) && !(((c) & META) && AsciiOnly))
91 #define Isupper(c)  (cmap(c, _UP) && !(((c) & META) && AsciiOnly))
92 #define Tolower(c)  (_cmap_lower[(unsigned char)(c)])
93 #define Toupper(c)  (_cmap_upper[(unsigned char)(c)])
94 #define Isxdigit(c) cmap(c, _XD)
95 #define Isalnum(c)  (cmap(c, _DIG|_LET) && !(((c) & META) && AsciiOnly))
96 #define Iscntrl(c)  (cmap(c,_CTR) && !(((c) & META) && AsciiOnly))
97 #define Isprint(c)  (!cmap(c,_CTR) && !(((c) & META) && AsciiOnly))
98 #endif
99 
100 #endif /* !_CHAR_H_ */
101