minix/commands/elvis/ctype.h
2005-04-21 14:53:53 +00:00

40 lines
1.2 KiB
C
Executable file

/* ctype.h */
/* This file contains macros definitions and extern declarations for a
* version of <ctype.h> which is aware of the o_flipcase letters used in
* elvis.
*
* This file uses the "uchar" data type and "UCHAR" conversion macro which
* are defined in "config.h". Consequently, any file that includes this
* header must include config.h first.
*/
#ifndef _CT_UPPER
#define _CT_UPPER 0x01
#define _CT_LOWER 0x02
#define _CT_SPACE 0x04
#define _CT_DIGIT 0x08
#define _CT_ALNUM 0x10
#define _CT_CNTRL 0x20
#define isalnum(c) (_ct_ctypes[UCHAR(c)] & _CT_ALNUM)
#define isalpha(c) (_ct_ctypes[UCHAR(c)] & (_CT_LOWER|_CT_UPPER))
#define isdigit(c) (_ct_ctypes[UCHAR(c)] & _CT_DIGIT)
#define islower(c) (_ct_ctypes[UCHAR(c)] & _CT_LOWER)
#define isspace(c) (_ct_ctypes[UCHAR(c)] & _CT_SPACE)
#define isupper(c) (_ct_ctypes[UCHAR(c)] & _CT_UPPER)
#define iscntrl(c) (_ct_ctypes[UCHAR(c)] & _CT_CNTRL)
#define ispunct(c) (!_ct_ctypes[UCHAR(c)]) /* punct = "none of the above" */
#define isascii(c) (!((c) & 0x80))
#define toupper(c) _ct_toupper[UCHAR(c)]
#define tolower(c) _ct_tolower[UCHAR(c)]
extern uchar _ct_toupper[];
extern uchar _ct_tolower[];
extern uchar _ct_ctypes[];
extern void _ct_init(/* char *flipcase */);
#endif /* ndef _CT_UPPER */