Home | History | Annotate | Line # | Download | only in common 
      1 /*	$NetBSD: multibyte.h,v 1.4 2017/11/13 01:34:59 rin 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 STRLEN		wcslen
     45 #define STRTOL		wcstol
     46 #define STRTOUL		wcstoul
     47 #define SPRINTF		swprintf
     48 #define STRCHR		wcschr
     49 #define STRCMP		wcscmp
     50 #define STRPBRK		wcspbrk
     51 #define ISBLANK2	iswblank
     52 #define ISCNTRL		iswcntrl
     53 #define ISGRAPH		iswgraph
     54 #define ISLOWER		iswlower
     55 #define ISALPHA2	iswalpha
     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 STRLEN		strlen
     78 #define STRTOL		strtol
     79 #define STRTOUL		strtoul
     80 #define SPRINTF		snprintf
     81 #define STRCHR		strchr
     82 #define STRCMP		strcmp
     83 #define STRPBRK		strpbrk
     84 #define ISBLANK2	isblank
     85 #define ISCNTRL		iscntrl
     86 #define ISGRAPH		isgraph
     87 #define ISLOWER		islower
     88 #define ISALPHA2	isalpha
     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
    117