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| author | nthnluu <nate1299@me.com> | 2024-01-28 21:20:27 -0500 |
|---|---|---|
| committer | nthnluu <nate1299@me.com> | 2024-01-28 21:20:27 -0500 |
| commit | c63f340d90800895f007de64b7d2d14624263331 (patch) | |
| tree | 2c0849fa597dd6da831c8707b6f2603403778d7b /kernel/include/ctype.h | |
Created student weenix repository
Diffstat (limited to 'kernel/include/ctype.h')
| -rw-r--r-- | kernel/include/ctype.h | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/kernel/include/ctype.h b/kernel/include/ctype.h new file mode 100644 index 0000000..95e5496 --- /dev/null +++ b/kernel/include/ctype.h @@ -0,0 +1,124 @@ +#pragma once + +#ifdef __KERNEL__ +#include "kernel.h" +#include "types.h" +#else + +#include "stddef.h" +#include "sys/types.h" + +#endif + +/* the original implementation for the following functions + * was ported from the old Weenix on Xen architecture which + * used the mini-os functions */ +/* + * NOTE! This ctype does not handle EOF like the standard C + * library is required to. + */ + +#define _U 0x01 /* upper */ +#define _L 0x02 /* lower */ +#define _D 0x04 /* digit */ +#define _C 0x08 /* cntrl */ +#define _P 0x10 /* punct */ +#define _S 0x20 /* white space (space/lf/tab) */ +#define _X 0x40 /* hex digit */ +#define _SP 0x80 /* hard space (0x20) */ + +static unsigned char + _ctype[] = {_C, _C, _C, _C, _C, _C, + _C, _C, /* 0-7 */ + _C, _C | _S, _C | _S, _C | _S, _C | _S, _C | _S, + _C, _C, /* 8-15 */ + _C, _C, _C, _C, _C, _C, + _C, _C, /* 16-23 */ + _C, _C, _C, _C, _C, _C, + _C, _C, /* 24-31 */ + _S | _SP, _P, _P, _P, _P, _P, + _P, _P, /* 32-39 */ + _P, _P, _P, _P, _P, _P, + _P, _P, /* 40-47 */ + _D, _D, _D, _D, _D, _D, + _D, _D, /* 48-55 */ + _D, _D, _P, _P, _P, _P, + _P, _P, /* 56-63 */ + _P, _U | _X, _U | _X, _U | _X, _U | _X, _U | _X, + _U | _X, _U, /* 64-71 */ + _U, _U, _U, _U, _U, _U, + _U, _U, /* 72-79 */ + _U, _U, _U, _U, _U, _U, + _U, _U, /* 80-87 */ + _U, _U, _U, _P, _P, _P, + _P, _P, /* 88-95 */ + _P, _L | _X, _L | _X, _L | _X, _L | _X, _L | _X, + _L | _X, _L, /* 96-103 */ + _L, _L, _L, _L, _L, _L, + _L, _L, /* 104-111 */ + _L, _L, _L, _L, _L, _L, + _L, _L, /* 112-119 */ + _L, _L, _L, _P, _P, _P, + _P, _C, /* 120-127 */ + 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, /* 128-143 */ + 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, /* 144-159 */ + _S | _SP, _P, _P, _P, _P, _P, + _P, _P, _P, _P, _P, _P, + _P, _P, _P, _P, /* 160-175 */ + _P, _P, _P, _P, _P, _P, + _P, _P, _P, _P, _P, _P, + _P, _P, _P, _P, /* 176-191 */ + _U, _U, _U, _U, _U, _U, + _U, _U, _U, _U, _U, _U, + _U, _U, _U, _U, /* 192-207 */ + _U, _U, _U, _U, _U, _U, + _U, _P, _U, _U, _U, _U, + _U, _U, _U, _L, /* 208-223 */ + _L, _L, _L, _L, _L, _L, + _L, _L, _L, _L, _L, _L, + _L, _L, _L, _L, /* 224-239 */ + _L, _L, _L, _L, _L, _L, + _L, _P, _L, _L, _L, _L, + _L, _L, _L, _L}; /* 240-255 */ + +#define __ismask(x) (_ctype[(int)(unsigned char)(x)]) + +#define isalnum(c) ((__ismask(c) & (_U | _L | _D)) != 0) +#define isalpha(c) ((__ismask(c) & (_U | _L)) != 0) +#define iscntrl(c) ((__ismask(c) & (_C)) != 0) +#define isdigit(c) ((__ismask(c) & (_D)) != 0) +#define isgraph(c) ((__ismask(c) & (_P | _U | _L | _D)) != 0) +#define islower(c) ((__ismask(c) & (_L)) != 0) +#define isprint(c) ((__ismask(c) & (_P | _U | _L | _D | _SP)) != 0) +#define ispunct(c) ((__ismask(c) & (_P)) != 0) +#define isspace(c) ((__ismask(c) & (_S)) != 0) +#define isupper(c) ((__ismask(c) & (_U)) != 0) +#define isxdigit(c) ((__ismask(c) & (_D | _X)) != 0) + +#define isascii(c) (((unsigned char)(c)) <= 0x7f) +#define toascii(c) (((unsigned char)(c)) & 0x7f) + +static inline unsigned char __tolower(unsigned char c) +{ + if (isupper(c)) + { + c -= 'A' - 'a'; + } + return c; +} + +static inline unsigned char __toupper(unsigned char c) +{ + if (islower(c)) + { + c -= 'a' - 'A'; + } + return c; +} + +#define tolower(c) __tolower(c) +#define toupper(c) __toupper(c) |