safe-ctype.h
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上传日期:2007-01-17
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- /* <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