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