423 lines
9.7 KiB
C
423 lines
9.7 KiB
C
/****************************************************************************
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* include/ctype.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __INCLUDE_CTYPE_H
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#define __INCLUDE_CTYPE_H
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/* There is no consistent ctype implementation, just a smattering of
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* functions. Individually, they are okay, but a more standard, data lookup
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* approach would make more sense if used extensively.
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*/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/compiler.h>
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#include <langinfo.h>
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/****************************************************************************
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* Macro Definitions
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****************************************************************************/
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/* GNU libstdc++ is expecting ctype.h to define a few macros for
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* locale related functions like C++ streams.
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*/
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#define _U 01
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#define _L 02
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#define _N 04
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#define _S 010
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#define _P 020
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#define _C 040
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#define _X 0100
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#define _B 0200
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/****************************************************************************
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* Inline Functions
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****************************************************************************/
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#ifdef __cplusplus
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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/****************************************************************************
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* Name: isspace
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*
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* Description:
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* Checks for white-space characters. In the "C" and "POSIX" locales,
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* these are: space, form-feed ('\f'), newline ('\n'), carriage return
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* ('\r'), horizontal tab ('\t'), and vertical tab ('\v').
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*
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****************************************************************************/
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#ifdef __cplusplus
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static inline int isspace(int c)
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{
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return c == ' ' || c == '\t' || c == '\n' || c == '\r' ||
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c == '\f' || c == '\v';
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}
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static inline int isspace_l(int c, locale_t locale)
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{
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return isspace(c);
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}
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#else
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int isspace(int c);
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int isspace_l(int c, locale_t locale);
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#endif
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/****************************************************************************
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* Name: isascii
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*
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* Description:
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* Checks whether c is a 7-bit unsigned char value that fits into the
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* ASCII character set.
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*
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****************************************************************************/
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#ifdef __cplusplus
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static inline int isascii(int c)
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{
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return c >= 0 && c <= 0x7f;
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}
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static inline int isascii_l(int c, locale_t locale)
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{
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return isascii(c);
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}
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#else
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int isascii(int c);
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int isascii_l(int c, locale_t locale);
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#endif
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/****************************************************************************
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* Name: isprint
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*
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* Description:
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* Checks for a printable character (including space)
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*
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****************************************************************************/
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#ifdef __cplusplus
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static inline int isprint(int c)
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{
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return c >= 0x20 && c < 0x7f;
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}
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static inline int isprint_l(int c, locale_t locale)
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{
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return isprint(c);
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}
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#else
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int isprint(int c);
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int isprint_l(int c, locale_t locale);
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#endif
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/****************************************************************************
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* Name: isgraph
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*
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* Description:
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* Checks for a printable character (excluding space)
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*
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****************************************************************************/
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#ifdef __cplusplus
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static inline int isgraph(int c)
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{
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return c > 0x20 && c < 0x7f;
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}
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static inline int isgraph_l(int c, locale_t locale)
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{
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return isgraph(c);
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}
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#else
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int isgraph(int c);
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int isgraph_l(int c, locale_t locale);
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#endif
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/****************************************************************************
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* Name: iscntrl
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*
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* Description:
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* Checks for control character.
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*
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****************************************************************************/
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#ifdef __cplusplus
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static inline int iscntrl(int c)
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{
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return c < 0x20 || c == 0x7f;
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}
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static inline int iscntrl_l(int c, locale_t locale)
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{
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return iscntrl(c);
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}
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#else
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int iscntrl(int c);
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int iscntrl_l(int c, locale_t locale);
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#endif
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/****************************************************************************
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* Name: islower
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*
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* Description:
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* Checks for an lowercase letter.
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*
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****************************************************************************/
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#ifdef __cplusplus
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static inline int islower(int c)
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{
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return c >= 'a' && c <= 'z';
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}
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static inline int islower_l(int c, locale_t locale)
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{
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return islower(c);
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}
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#else
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int islower(int c);
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int islower_l(int c, locale_t locale);
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#endif
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/****************************************************************************
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* Name: isupper
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*
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* Description:
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* Checks for an uppercase letter.
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*
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****************************************************************************/
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#ifdef __cplusplus
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static inline int isupper(int c)
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{
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return c >= 'A' && c <= 'Z';
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}
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static inline int isupper_l(int c, locale_t locale)
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{
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return isupper(c);
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}
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#else
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int isupper(int c);
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int isupper_l(int c, locale_t locale);
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#endif
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/****************************************************************************
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* Name: isalpha
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*
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* Description:
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* Checks for an alphabetic character
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*
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****************************************************************************/
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#ifdef __cplusplus
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static inline int isalpha(int c)
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{
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return islower(c) || isupper(c);
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}
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static inline int isalpha_l(int c, locale_t locale)
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{
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return isalpha(c);
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}
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#else
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int isalpha(int c);
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int isalpha_l(int c, locale_t locale);
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#endif
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/****************************************************************************
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* Name: isblank
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*
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* Description:
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* Checks for blank characters (space or tab). C++11
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*
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****************************************************************************/
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#ifdef __cplusplus
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static inline int isblank(int c)
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{
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return c == ' ' || c == '\t';
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}
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static inline int isblank_l(int c, locale_t locale)
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{
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return isblank(c);
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}
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#else
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int isblank(int c);
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int isblank_l(int c, locale_t locale);
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#endif
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/****************************************************************************
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* Name: isdigit
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*
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* Description:
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* ANSI standard isdigit implementation.
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*
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****************************************************************************/
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#ifdef __cplusplus
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static inline int isdigit(int c)
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{
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return c >= '0' && c <= '9';
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}
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static inline int isdigit_l(int c, locale_t locale)
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{
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return isdigit(c);
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}
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#else
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int isdigit(int c);
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int isdigit_l(int c, locale_t locale);
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#endif
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/****************************************************************************
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* Name: isalnum
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*
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* Description:
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* Checks for an alphanumeric character
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*
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****************************************************************************/
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#ifdef __cplusplus
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static inline int isalnum(int c)
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{
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return isalpha(c) || isdigit(c);
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}
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static inline int isalnum_l(int c, locale_t locale)
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{
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return isalnum(c);
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}
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#else
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int isalnum(int c);
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int isalnum_l(int c, locale_t locale);
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#endif
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/****************************************************************************
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* Name: ispunct
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*
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* Description:
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* Checks for a printable character which is not a space or an
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* alphanumeric character
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*
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****************************************************************************/
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#ifdef __cplusplus
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static inline int ispunct(int c)
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{
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return isgraph(c) && !isalnum(c);
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}
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static inline int ispunct_l(int c, locale_t locale)
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{
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return ispunct(c);
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}
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#else
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int ispunct(int c);
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int ispunct_l(int c, locale_t locale);
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#endif
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/****************************************************************************
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* Name: isxdigit
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*
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* Description:
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* isxdigit() checks for a hexadecimal digits, i.e. one of {0-9,a-f,A-F}
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*
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****************************************************************************/
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#ifdef __cplusplus
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static inline int isxdigit(int c)
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{
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return (c >= '0' && c <= '9') ||
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(c >= 'a' && c <= 'f') ||
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(c >= 'A' && c <= 'F');
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}
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static inline int isxdigit_l(int c, locale_t locale)
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{
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return isxdigit(c);
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}
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#else
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int isxdigit(int c);
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int isxdigit_l(int c, locale_t locale);
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#endif
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/****************************************************************************
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* Name: toupper
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*
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* Description:
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* toupper() converts the letter c to upper case, if possible.
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*
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****************************************************************************/
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#ifdef __cplusplus
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static inline int toupper(int c)
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{
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return (c >= 'a' && c <= 'z') ? c - 'a' + 'A' : c;
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}
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static inline int toupper_l(int c, locale_t locale)
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{
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return toupper(c);
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}
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#else
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int toupper(int c);
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int toupper_l(int c, locale_t locale);
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#endif
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/****************************************************************************
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* Name: tolower
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*
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* Description:
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* tolower() converts the letter c to lower case, if possible.
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*
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****************************************************************************/
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#ifdef __cplusplus
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static inline int tolower(int c)
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{
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return (c >= 'A' && c <= 'Z') ? (c - 'A' + 'a') : c;
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}
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static inline int tolower_l(int c, locale_t locale)
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{
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return tolower(c);
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}
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#else
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int tolower(int c);
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int tolower_l(int c, locale_t locale);
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#endif
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#undef EXTERN
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#ifdef __cplusplus
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}
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#endif
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#endif /* __INCLUDE_CTYPE_H */
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