commands/elvis/ctype.h

   1 /* ctype.h */
   2
   3 /* This file contains macros definitions and extern declarations for a
   4  * version of <ctype.h> which is aware of the o_flipcase letters used in
   5  * elvis.
   6  *
   7  * This file uses the "uchar" data type and "UCHAR" conversion macro which
   8  * are defined in "config.h".  Consequently, any file that includes this
   9  * header must include config.h first.
  10  */
  11
  12 #ifndef _CT_UPPER
  13
  14 #define _CT_UPPER       0x01
  15 #define _CT_LOWER       0x02
  16 #define _CT_SPACE       0x04
  17 #define _CT_DIGIT       0x08
  18 #define _CT_ALNUM       0x10
  19 #define _CT_CNTRL       0x20
  20
  21 #define isalnum(c)      (_ct_ctypes[UCHAR(c)] & _CT_ALNUM)
  22 #define isalpha(c)      (_ct_ctypes[UCHAR(c)] & (_CT_LOWER|_CT_UPPER))
  23 #define isdigit(c)      (_ct_ctypes[UCHAR(c)] & _CT_DIGIT)
  24 #define islower(c)      (_ct_ctypes[UCHAR(c)] & _CT_LOWER)
  25 #define isspace(c)      (_ct_ctypes[UCHAR(c)] & _CT_SPACE)
  26 #define isupper(c)      (_ct_ctypes[UCHAR(c)] & _CT_UPPER)
  27 #define iscntrl(c)      (_ct_ctypes[UCHAR(c)] & _CT_CNTRL)
  28 #define ispunct(c)      (!_ct_ctypes[UCHAR(c)]) /* punct = "none of the above" */
  29
  30 #define isascii(c)      (!((c) & 0x80))
  31
  32 #define toupper(c)      _ct_toupper[UCHAR(c)]
  33 #define tolower(c)      _ct_tolower[UCHAR(c)]
  34
  35 extern uchar    _ct_toupper[];
  36 extern uchar    _ct_tolower[];
  37 extern uchar    _ct_ctypes[];
  38 extern void     _ct_init(/* char *flipcase */);
  39
  40 #endif /* ndef _CT_UPPER */