headers/posix/ctype.h

   1 /*
   2  * Copyright 2003-2012 Haiku, Inc. All Rights Reserved.
   3  * Distributed under the terms of the MIT License.
   4  */
   5 #ifndef _CTYPE_H
   6 #define _CTYPE_H
   7
   8
   9 #ifdef __cplusplus
  10 extern "C" {
  11 #endif
  12
  13 int isalnum(int);
  14 int isalpha(int);
  15 int isascii(int);
  16 int isblank(int);
  17 int iscntrl(int);
  18 int isdigit(int);
  19 int isgraph(int);
  20 int islower(int);
  21 int isprint(int);
  22 int ispunct(int);
  23 int isspace(int);
  24 int isupper(int);
  25 int isxdigit(int);
  26 int toascii(int);
  27 int tolower(int);
  28 int toupper(int);
  29
  30 enum {
  31         _ISblank = 0x0001,              /* blank */
  32         _IScntrl = 0x0002,              /* control */
  33         _ISpunct = 0x0004,              /* punctuation */
  34         _ISalnum = 0x0008,              /* alpha-numeric */
  35         _ISupper = 0x0100,              /* uppercase */
  36         _ISlower = 0x0200,              /* lowercase */
  37         _ISalpha = 0x0400,              /* alphabetic */
  38         _ISdigit = 0x0800,              /* digit */
  39         _ISxdigit = 0x1000,             /* hexadecimal digit */
  40         _ISspace = 0x2000,              /* white space */
  41         _ISprint = 0x4000,              /* printing */
  42         _ISgraph = 0x8000               /* graphical */
  43 };
  44
  45 /* Characteristics */
  46 extern const unsigned short int *__ctype_b;
  47 /* Case conversions */
  48 extern const int *__ctype_tolower;
  49 extern const int *__ctype_toupper;
  50
  51 #define __isctype(c, type) \
  52         (__ctype_b[(int)(c)] & (unsigned short int)type)
  53
  54 #define isascii(c) (((c) & ~0x7f) == 0) /* ASCII characters have bit 8 cleared */
  55 #define toascii(c) ((c) & 0x7f)                 /* Clear higher bits */
  56
  57 #define tolower(c) ((int)__ctype_tolower[(int)(c)])
  58 #define toupper(c) ((int)__ctype_toupper[(int)(c)])
  59 #define _tolower(c)     tolower(c)
  60 #define _toupper(c)     toupper(c)
  61
  62 #define isalnum(c)      __isctype((c), _ISalnum)
  63 #define isalpha(c)      __isctype((c), _ISalpha)
  64 #define isblank(c)      __isctype((c), _ISblank)
  65 #define iscntrl(c)      __isctype((c), _IScntrl)
  66 #define isdigit(c)      __isctype((c), _ISdigit)
  67 #define islower(c)      __isctype((c), _ISlower)
  68 #define isgraph(c)      __isctype((c), _ISgraph)
  69 #define isprint(c)      __isctype((c), _ISprint)
  70 #define ispunct(c)      __isctype((c), _ISpunct)
  71 #define isspace(c)      __isctype((c), _ISspace)
  72 #define isupper(c)      __isctype((c), _ISupper)
  73 #define isxdigit(c)     __isctype((c), _ISxdigit)
  74
  75 extern unsigned short int __ctype_mb_cur_max;
  76
  77 #ifdef __cplusplus
  78 }
  79 #endif
  80
  81 #endif /* _CTYPE_H */