external/bsd/nvi/dist/common/multibyte.h

   1 /*      $NetBSD: multibyte.h,v 1.2 2013/11/22 15:52:05 christos Exp $   */
   2 #ifndef MULTIBYTE_H
   3 #define MULTIBYTE_H
   4
   5 /*
   6  * Ex/vi commands are generally separated by whitespace characters.  We
   7  * can't use the standard isspace(3) macro because it returns true for
   8  * characters like ^K in the ASCII character set.  The 4.4BSD isblank(3)
   9  * macro does exactly what we want, but it's not portable yet.
  10  *
  11  * XXX
  12  * Note side effect, ch is evaluated multiple times.
  13  */
  14 #define ISBLANK(c)      ((c) == ' ' || (c) == '\t')
  15
  16 #define ISDIGIT(c)      ((c) >= '0' && (c) <= '9')
  17 #define ISXDIGIT(c)     (ISDIGIT(c) || \
  18                          ((c) >= 'A' && (c) <= 'F') || ((c) >= 'a' && (c) <= 'f'))
  19 #define ISALPHA(c)      (((c) >= 'A' && (c) <= 'Z') || ((c) >= 'a' && (c) <= 'z'))
  20 #define ISALNUM(c)      (ISALPHA(c) || ISDIGIT(c))
  21
  22 /*
  23  * Fundamental character types.
  24  *
  25  * CHAR_T       An integral type that can hold any character.
  26  * ARG_CHAR_T   The type of a CHAR_T when passed as an argument using
  27  *              traditional promotion rules.  It should also be able
  28  *              to be compared against any CHAR_T for equality without
  29  *              problems.
  30  *
  31  * If no integral type can hold a character, don't even try the port.
  32  */
  33
  34 #ifdef USE_WIDECHAR
  35 #include <wchar.h>
  36 #include <wctype.h>
  37
  38 typedef wchar_t         RCHAR_T;
  39 #define REOF            WEOF
  40 typedef wchar_t         CHAR_T;
  41 typedef wint_t          ARG_CHAR_T;
  42 typedef wint_t          UCHAR_T;
  43
  44 #define ISUPPER         iswupper
  45 #define STRLEN          wcslen
  46 #define STRTOL          wcstol
  47 #define STRTOUL         wcstoul
  48 #define SPRINTF         swprintf
  49 #define STRCHR          wcschr
  50 #define STRCMP          wcscmp
  51 #define STRPBRK         wcspbrk
  52 #define ISBLANK2        iswblank
  53 #define ISCNTRL         iswcntrl
  54 #define ISGRAPH         iswgraph
  55 #define ISLOWER         iswlower
  56 #define ISPUNCT         iswpunct
  57 #define ISSPACE         iswspace
  58 #define ISUPPER         iswupper
  59 #define TOLOWER         towlower
  60 #define TOUPPER         towupper
  61 #define STRSET          wmemset
  62 #define STRCHR          wcschr
  63
  64 #define L(ch)           L ## ch
  65 #define WS              "%ls"
  66 #define WVS             "%*ls"
  67 #define WC              "%lc"
  68
  69 #else
  70 #include <stdio.h>
  71
  72 #define REOF            EOF
  73 typedef char            CHAR_T;
  74 typedef int             ARG_CHAR_T;
  75 typedef unsigned char   UCHAR_T;
  76
  77 #define ISUPPER         isupper
  78 #define STRLEN          strlen
  79 #define STRTOL          strtol
  80 #define STRTOUL         strtoul
  81 #define SPRINTF         snprintf
  82 #define STRCHR          strchr
  83 #define STRCMP          strcmp
  84 #define STRPBRK         strpbrk
  85 #define ISBLANK2        isblank
  86 #define ISCNTRL         iscntrl
  87 #define ISGRAPH         isgraph
  88 #define ISLOWER         islower
  89 #define ISPUNCT         ispunct
  90 #define ISSPACE         isspace
  91 #define ISUPPER         isupper
  92 #define TOLOWER         tolower
  93 #define TOUPPER         toupper
  94 #define STRSET          memset
  95 #define STRCHR          strchr
  96
  97 #define L(ch)           ch
  98 #define WS              "%s"
  99 #define WVS             "%*s"
 100 #define WC              "%c"
 101
 102 #endif
 103
 104 #define MEMCMP(to, from, n)                                                 \
 105         memcmp(to, from, (n) * sizeof(*(to)))
 106 #define MEMMOVE(p, t, len)      memmove(p, t, (len) * sizeof(*(p)))
 107 #define MEMCPY(p, t, len)       memcpy(p, t, (len) * sizeof(*(p)))
 108 /*
 109  * Like MEMCPY but return a pointer to the end of the copied bytes.
 110  * Glibc has a function mempcpy with the same purpose.
 111  */
 112 #define MEMPCPY(p, t, len) \
 113         ((void *)((char *)MEMCPY(p, t, len) + (len) * sizeof(*(p))))
 114 #define SIZE(w)         (sizeof(w)/sizeof(*w))
 115
 116 #endif