/* <ctype.h> replacement macros.
Copyright (C) 2000, 2001 Free Software Foundation, Inc.
Contributed by Zack Weinberg <zackw@stanford.edu>.
This file is part of the libiberty library.
Libiberty is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
Libiberty is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with libiberty; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
/* This is a compatible replacement of the standard C library's <ctype.h>
with the following properties:
- Implements all isxxx() macros required by C99.
- Also implements some character classes useful when
parsing C-like languages.
- Does not change behavior depending on the current locale.
- Behaves properly for all values in the range of a signed or
unsigned char.
To avoid conflicts, this header defines the isxxx functions in upper
case, e.g. ISALPHA not isalpha. */
#ifndef SAFE_CTYPE_H
#define SAFE_CTYPE_H
// #ifdef isalpha
// #error "safe-ctype.h and ctype.h may not be used simultaneously"
// #else
/* Categories. */
enum
{
/* In C99 */
_sch_isblank = 0x0001,
/* space \t */
_sch_iscntrl = 0x0002,
/* nonprinting characters */
_sch_isdigit = 0x0004,
/* 0-9 */
_sch_islower = 0x0008,
/* a-z */
_sch_isprint = 0x0010,
/* any printing character including ' ' */
_sch_ispunct = 0x0020,
/* all punctuation */
_sch_isspace = 0x0040,
/* space \t \n \r \f \v */
_sch_isupper = 0x0080,
/* A-Z */
_sch_isxdigit = 0x0100,
/* 0-9A-Fa-f */
/* Extra categories useful to cpplib. */
_sch_isidst = 0x0200,
/* A-Za-z_ */
_sch_isvsp = 0x0400,
/* \n \r */
_sch_isnvsp = 0x0800,
/* space \t \f \v \0 */
/* Combinations of the above. */
_sch_isalpha = _sch_isupper|_sch_islower,
/* A-Za-z */
_sch_isalnum = _sch_isalpha|_sch_isdigit,
/* A-Za-z0-9 */
_sch_isidnum = _sch_isidst|_sch_isdigit,
/* A-Za-z0-9_ */
_sch_isgraph = _sch_isalnum|_sch_ispunct,
/* isprint and not space */
_sch_iscppsp = _sch_isvsp|_sch_isnvsp,
/* isspace + \0 */
_sch_isbasic = _sch_isprint|_sch_iscppsp
/* basic charset of ISO C
(plus ` and @) */
};
/* Character classification. */
extern
const
unsigned
short
_sch_istable[256];
#define _sch_test(c, bit) (_sch_istable[(c) & 0xff] & (unsigned short)(bit))
#define ISALPHA(c) _sch_test(c, _sch_isalpha)
#define ISALNUM(c) _sch_test(c, _sch_isalnum)
#define ISBLANK(c) _sch_test(c, _sch_isblank)
#define ISCNTRL(c) _sch_test(c, _sch_iscntrl)
#define ISDIGIT(c) _sch_test(c, _sch_isdigit)
#define ISGRAPH(c) _sch_test(c, _sch_isgraph)
#define ISLOWER(c) _sch_test(c, _sch_islower)
#define ISPRINT(c) _sch_test(c, _sch_isprint)
#define ISPUNCT(c) _sch_test(c, _sch_ispunct)
#define ISSPACE(c) _sch_test(c, _sch_isspace)
#define ISUPPER(c) _sch_test(c, _sch_isupper)
#define ISXDIGIT(c) _sch_test(c, _sch_isxdigit)
#define ISIDNUM(c) _sch_test(c, _sch_isidnum)
#define ISIDST(c) _sch_test(c, _sch_isidst)
#define IS_ISOBASIC(c) _sch_test(c, _sch_isbasic)
#define IS_VSPACE(c) _sch_test(c, _sch_isvsp)
#define IS_NVSPACE(c) _sch_test(c, _sch_isnvsp)
#define IS_SPACE_OR_NUL(c) _sch_test(c, _sch_iscppsp)
/* Character transformation. */
extern
const
unsigned
char
_sch_toupper[256];
extern
const
unsigned
char
_sch_tolower[256];
#define TOUPPER(c) _sch_toupper[(c) & 0xff]
#define TOLOWER(c) _sch_tolower[(c) & 0xff]
// #endif /* no ctype.h */
#endif /* SAFE_CTYPE_H */