/* $NetBSD: char.h,v 1.9 2012/01/19 02:42:53 christos Exp $ */

/*-
 * Copyright (c) 1980, 1991, 1993
 *      The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *      @(#)char.h      8.1 (Berkeley) 5/31/93
 */

#ifndef _CHAR_H_
#define _CHAR_H_

#include <ctype.h>

extern unsigned short _cmap[];

#ifndef NLS
extern unsigned char _cmap_lower[], _cmap_upper[];

#endif

#define _QF     0x0001          /* '" (Forward quotes) */
#define _QB     0x0002          /* ` (Backquote) */
#define _SP     0x0004          /* space and tab */
#define _NL     0x0008          /* \n */
#define _META   0x0010          /* lex meta characters, sp #'`";&<>()|\t\n */
#define _GLOB   0x0020          /* glob characters, *?{[` */
#define _ESC    0x0040          /* \ */
#define _DOL    0x0080          /* $ */
#define _DIG    0x0100          /* 0-9 */
#define _LET    0x0200          /* a-z, A-Z, _ */
#define _UP     0x0400          /* A-Z */
#define _LOW    0x0800          /* a-z */
#define _XD     0x1000          /* 0-9, a-f, A-F */
#define _CMD    0x2000          /* lex end of command chars, ;&(|` */
#define _CTR    0x4000          /* control */
#define _PUN    0x8000          /* punctuation */

#define cmap(c, bits)   \
        (((c) & QUOTE) ? 0 : (_cmap[(unsigned char)(c)] & (bits)))

#define isglob(c)       cmap(c, _GLOB)
#define isspc(c)        cmap(c, _SP)
#define ismeta(c)       cmap(c, _META)
#define iscmdmeta(c)    cmap(c, _CMD)
#define letter(c)       (((c) & QUOTE) ? 0 : \
                         (isalpha((unsigned char) (c)) || (c) == '_'))
#define alnum(c)        (((c) & QUOTE) ? 0 : \
                         (isalnum((unsigned char) (c)) || (c) == '_'))
#ifdef NLS
#define Isspace(c)      (((c) & QUOTE) ? 0 : isspace((unsigned char) (c)))
#define Isdigit(c)      (((c) & QUOTE) ? 0 : isdigit((unsigned char) (c)))
#define Isalpha(c)      (((c) & QUOTE) ? 0 : isalpha((unsigned char) (c)))
#define Islower(c)      (((c) & QUOTE) ? 0 : islower((unsigned char) (c)))
#define Isupper(c)      (((c) & QUOTE) ? 0 : isupper((unsigned char) (c)))
#define Tolower(c)      (((c) & QUOTE) ? 0 : tolower((unsigned char) (c)))
#define Toupper(c)      (((c) & QUOTE) ? 0 : toupper((unsigned char) (c)))
#define Isxdigit(c)     (((c) & QUOTE) ? 0 : isxdigit((unsigned char) (c)))
#define Isalnum(c)      (((c) & QUOTE) ? 0 : isalnum((unsigned char) (c)))
#define Iscntrl(c)      (((c) & QUOTE) ? 0 : iscntrl((unsigned char) (c)))
#define Isprint(c)      (((c) & QUOTE) ? 0 : isprint((unsigned char) (c)))
#else
#define Isspace(c)      cmap(c, _SP|_NL)
#define Isdigit(c)      cmap(c, _DIG)
#define Isalpha(c)      (cmap(c,_LET) && !(((c) & META) && AsciiOnly))
#define Islower(c)      (cmap(c,_LOW) && !(((c) & META) && AsciiOnly))
#define Isupper(c)      (cmap(c, _UP) && !(((c) & META) && AsciiOnly))
#define Tolower(c)      (_cmap_lower[(unsigned char)(c)])
#define Toupper(c)      (_cmap_upper[(unsigned char)(c)])
#define Isxdigit(c)     cmap(c, _XD)
#define Isalnum(c)      (cmap(c, _DIG|_LET) && !(((c) & META) && AsciiOnly))
#define Iscntrl(c)      (cmap(c,_CTR) && !(((c) & META) && AsciiOnly))
#define Isprint(c)      (!cmap(c,_CTR) && !(((c) & META) && AsciiOnly))
#endif

#endif /* !_CHAR_H_ */