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- /* Copyright (C) 2002 Manuel Novoa III
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * The GNU C Library 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with the GNU C Library; if not, write to the Free
- * Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- * 02111-1307 USA.
- */
- /* ATTENTION! ATTENTION! ATTENTION! ATTENTION! ATTENTION!
- *
- * Besides uClibc, I'm using this code in my libc for elks, which is
- * a 16-bit environment with a fairly limited compiler. It would make
- * things much easier for me if this file isn't modified unnecessarily.
- * In particular, please put any new or replacement functions somewhere
- * else, and modify the makefile to use your version instead.
- * Thanks. Manuel
- *
- * ATTENTION! ATTENTION! ATTENTION! ATTENTION! ATTENTION! */
- #if !defined(_CTYPE_H) && !defined(_WCTYPE_H)
- #error Always include <{w}ctype.h> rather than <bits/uClibc_ctype.h>
- #endif
- #ifndef _BITS_CTYPE_H
- #define _BITS_CTYPE_H
- #ifdef __UCLIBC_GEN_LOCALE
- /* Taking advantage of the C99 mutual-exclusion guarantees for the various
- * (w)ctype classes, including the descriptions of printing and control
- * (w)chars, we can place each in one of the following mutually-exlusive
- * subsets. Since there are less than 16, we can store the data for
- * each (w)chars in a nibble. In contrast, glibc uses an unsigned int
- * per (w)char, with one bit flag for each is* type. While this allows
- * a simple '&' operation to determine the type vs. a range test and a
- * little special handling for the "blank" and "xdigit" types in my
- * approach, it also uses 8 times the space for the tables on the typical
- * 32-bit archs we supported.*/
- enum {
- __CTYPE_unclassified = 0,
- __CTYPE_alpha_nonupper_nonlower,
- __CTYPE_alpha_lower,
- __CTYPE_alpha_upper_lower,
- __CTYPE_alpha_upper,
- __CTYPE_digit,
- __CTYPE_punct,
- __CTYPE_graph,
- __CTYPE_print_space_nonblank,
- __CTYPE_print_space_blank,
- __CTYPE_space_nonblank_noncntrl,
- __CTYPE_space_blank_noncntrl,
- __CTYPE_cntrl_space_nonblank,
- __CTYPE_cntrl_space_blank,
- __CTYPE_cntrl_nonspace
- };
- /* Some macros that test for various (w)ctype classes when passed one of the
- * designator values enumerated above. */
- #define __CTYPE_isalnum(D) ((unsigned int)(D-1) <= (__CTYPE_digit-1))
- #define __CTYPE_isalpha(D) ((unsigned int)(D-1) <= (__CTYPE_alpha_upper-1))
- #define __CTYPE_isblank(D) \
- ((((unsigned int)(D - __CTYPE_print_space_nonblank)) <= 5) && (D & 1))
- #define __CTYPE_iscntrl(D) (((unsigned int)(D - __CTYPE_cntrl_space_nonblank)) <= 2)
- #define __CTYPE_isdigit(D) (D == __CTYPE_digit)
- #define __CTYPE_isgraph(D) ((unsigned int)(D-1) <= (__CTYPE_graph-1))
- #define __CTYPE_islower(D) (((unsigned int)(D - __CTYPE_alpha_lower)) <= 1)
- #define __CTYPE_isprint(D) ((unsigned int)(D-1) <= (__CTYPE_print_space_blank-1))
- #define __CTYPE_ispunct(D) (D == __CTYPE_punct)
- #define __CTYPE_isspace(D) (((unsigned int)(D - __CTYPE_print_space_nonblank)) <= 5)
- #define __CTYPE_isupper(D) (((unsigned int)(D - __CTYPE_alpha_upper_lower)) <= 1)
- /* #define __CTYPE_isxdigit(D) -- isxdigit is untestable this way.
- * But that's ok as isxdigit() (and isdigit() too) are locale-invariant. */
- #else /* __UCLIBC_GEN_LOCALE *****************************************/
- /* Define some ctype macros valid for the C/POSIX locale. */
- /* ASCII ords of \t, \f, \n, \r, and \v are 9, 12, 10, 13, 11 respectively. */
- #define __C_isspace(c) \
- ((sizeof(c) == sizeof(char)) \
- ? ((((c) == ' ') || (((unsigned char)((c) - 9)) <= (13 - 9)))) \
- : ((((c) == ' ') || (((unsigned int)((c) - 9)) <= (13 - 9)))))
- #define __C_isblank(c) (((c) == ' ') || ((c) == '\t'))
- #define __C_isdigit(c) \
- ((sizeof(c) == sizeof(char)) \
- ? (((unsigned char)((c) - '0')) < 10) \
- : (((unsigned int)((c) - '0')) < 10))
- #define __C_isxdigit(c) \
- (__C_isdigit(c) \
- || ((sizeof(c) == sizeof(char)) \
- ? (((unsigned char)((((c)) | 0x20) - 'a')) < 6) \
- : (((unsigned int)((((c)) | 0x20) - 'a')) < 6)))
- #define __C_iscntrl(c) \
- ((sizeof(c) == sizeof(char)) \
- ? ((((unsigned char)(c)) < 0x20) || ((c) == 0x7f)) \
- : ((((unsigned int)(c)) < 0x20) || ((c) == 0x7f)))
- #define __C_isalpha(c) \
- ((sizeof(c) == sizeof(char)) \
- ? (((unsigned char)(((c) | 0x20) - 'a')) < 26) \
- : (((unsigned int)(((c) | 0x20) - 'a')) < 26))
- #define __C_isalnum(c) (__C_isalpha(c) || __C_isdigit(c))
- #define __C_isprint(c) \
- ((sizeof(c) == sizeof(char)) \
- ? (((unsigned char)((c) - 0x20)) <= (0x7e - 0x20)) \
- : (((unsigned int)((c) - 0x20)) <= (0x7e - 0x20)))
- #define __C_islower(c) \
- ((sizeof(c) == sizeof(char)) \
- ? (((unsigned char)((c) - 'a')) < 26) \
- : (((unsigned int)((c) - 'a')) < 26))
- #define __C_isupper(c) \
- ((sizeof(c) == sizeof(char)) \
- ? (((unsigned char)((c) - 'A')) < 26) \
- : (((unsigned int)((c) - 'A')) < 26))
- #define __C_ispunct(c) \
- ((!__C_isalnum(c)) \
- && ((sizeof(c) == sizeof(char)) \
- ? (((unsigned char)((c) - 0x21)) <= (0x7e - 0x21)) \
- : (((unsigned int)((c) - 0x21)) <= (0x7e - 0x21))))
- #define __C_isgraph(c) \
- ((sizeof(c) == sizeof(char)) \
- ? (((unsigned int)((c) - 0x21)) <= (0x7e - 0x21)) \
- : (((unsigned int)((c) - 0x21)) <= (0x7e - 0x21)))
- #define __C_tolower(c) (__C_isupper(c) ? ((c) | 0x20) : (c))
- #define __C_toupper(c) (__C_islower(c) ? ((c) ^ 0x20) : (c))
- /**********************************************************************/
- __BEGIN_DECLS
- extern int isalnum(int c) __THROW;
- extern int isalpha(int c) __THROW;
- #ifdef __USE_ISOC99
- extern int isblank(int c) __THROW;
- #endif
- extern int iscntrl(int c) __THROW;
- extern int isdigit(int c) __THROW;
- extern int isgraph(int c) __THROW;
- extern int islower(int c) __THROW;
- extern int isprint(int c) __THROW;
- extern int ispunct(int c) __THROW;
- extern int isspace(int c) __THROW;
- extern int isupper(int c) __THROW;
- extern int isxdigit(int c) __THROW;
- extern int tolower(int c) __THROW;
- extern int toupper(int c) __THROW;
- #if defined __USE_SVID || defined __USE_MISC || defined __USE_XOPEN
- extern int isascii(int c) __THROW;
- extern int toascii(int c) __THROW;
- #endif
- #if defined _LIBC && (defined NOT_IN_libc || defined IS_IN_libc)
- /* isdigit() is really locale-invariant, so provide some small fast macros.
- * These are uClibc-specific. */
- #define __isdigit_char(C) (((unsigned char)((C) - '0')) <= 9)
- #define __isdigit_int(C) (((unsigned int)((C) - '0')) <= 9)
- #endif
- /* Next, some ctype macros which are valid for all supported locales. */
- /* WARNING: isspace and isblank need to be reverified if more 8-bit codesets
- * are added!!! But isdigit and isxdigit are always valid. */
- /* #define __isspace(c) __C_isspace(c) */
- /* #define __isblank(c) __C_isblank(c) */
- /* #define __isdigit(c) __C_isdigit(c) */
- /* #define __isxdigit(c) __C_isxdigit(c) */
- /* Now some non-ansi/iso c99 macros. */
- #define __isascii(c) (((c) & ~0x7f) == 0)
- #define __toascii(c) ((c) & 0x7f)
- #define _toupper(c) ((c) ^ 0x20)
- #define _tolower(c) ((c) | 0x20)
- __END_DECLS
- /**********************************************************************/
- #ifdef __GNUC__
- #define __isbody_C_macro(f,args) __C_ ## f args
- #define __isbody(f,c) \
- (__extension__ ({ \
- int __res; \
- if (sizeof(c) > sizeof(char)) { \
- int __c = (c); \
- __res = __isbody_C_macro(f,(__c)); \
- } else { \
- unsigned char __c = (c); \
- __res = __isbody_C_macro(f,(__c)); \
- } \
- __res; \
- }))
- #define __body_C_macro(f,args) __C_ ## f args
- #define __body(f,c) \
- (__extension__ ({ \
- int __res; \
- if (sizeof(c) > sizeof(char)) { \
- int __c = (c); \
- __res = __body_C_macro(f,(__c)); \
- } else { \
- unsigned char __c = (c); \
- __res = __body_C_macro(f,(__c)); \
- } \
- __res; \
- }))
- #define __isspace(c) __body(isspace,c)
- #define __isblank(c) __body(isblank,c)
- #define __isdigit(c) __body(isdigit,c)
- #define __isxdigit(c) __body(isxdigit,c)
- #define __iscntrl(c) __body(iscntrl,c)
- #define __isalpha(c) __body(isalpha,c)
- #define __isalnum(c) __body(isalnum,c)
- #define __isprint(c) __body(isprint,c)
- #define __islower(c) __body(islower,c)
- #define __isupper(c) __body(isupper,c)
- #define __ispunct(c) __body(ispunct,c)
- #define __isgraph(c) __body(isgraph,c)
- #define __tolower(c) __body(tolower,c)
- #define __toupper(c) __body(toupper,c)
- #if !defined __NO_CTYPE && !defined __cplusplus
- #define isspace(c) __isspace(c)
- #define isblank(c) __isblank(c)
- #define isdigit(c) __isdigit(c)
- #define isxdigit(c) __isxdigit(c)
- #define iscntrl(c) __iscntrl(c)
- #define isalpha(c) __isalpha(c)
- #define isalnum(c) __isalnum(c)
- #define isprint(c) __isprint(c)
- #define islower(c) __islower(c)
- #define isupper(c) __isupper(c)
- #define ispunct(c) __ispunct(c)
- #define isgraph(c) __isgraph(c)
- #define tolower(c) __tolower(c)
- #define toupper(c) __toupper(c)
- #endif
- #else /* _GNUC__ ***************************************************/
- #if !defined __NO_CTYPE && !defined __cplusplus
- /* These macros should be safe from side effects. */
- #define isdigit(c) __C_isdigit(c)
- #define isalpha(c) __C_isalpha(c)
- #define isprint(c) __C_isprint(c)
- #define islower(c) __C_islower(c)
- #define isupper(c) __C_isupper(c)
- #define isgraph(c) __C_isgraph(c)
- #endif
- #endif /* __GNUC__ */
- /**********************************************************************/
- #endif /* __UCLIBC_GEN_LOCALE */
- #endif /* _BITS_CTYPE_H */
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