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| author | Andrew Lee <alee14498@protonmail.com> | 2021-08-15 00:16:45 -0400 |
|---|---|---|
| committer | Andrew Lee <alee14498@protonmail.com> | 2021-08-15 00:16:45 -0400 |
| commit | 723428bebe3105ad3c3406e416402d1831b482c4 (patch) | |
| tree | ff990e306163515973746ddfb261f29ba8765441 /linux/include/ctype.h | |
| download | linux-0.01-distro-723428bebe3105ad3c3406e416402d1831b482c4.tar.gz linux-0.01-distro-723428bebe3105ad3c3406e416402d1831b482c4.tar.bz2 linux-0.01-distro-723428bebe3105ad3c3406e416402d1831b482c4.zip | |
Inital commit
Diffstat (limited to 'linux/include/ctype.h')
| -rw-r--r-- | linux/include/ctype.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/linux/include/ctype.h b/linux/include/ctype.h new file mode 100644 index 0000000..4043d6e --- /dev/null +++ b/linux/include/ctype.h @@ -0,0 +1,34 @@ +#ifndef _CTYPE_H +#define _CTYPE_H + +#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) */ + +extern unsigned char _ctype[]; +extern char _ctmp; + +#define isalnum(c) ((_ctype+1)[c]&(_U|_L|_D)) +#define isalpha(c) ((_ctype+1)[c]&(_U|_L)) +#define iscntrl(c) ((_ctype+1)[c]&(_C)) +#define isdigit(c) ((_ctype+1)[c]&(_D)) +#define isgraph(c) ((_ctype+1)[c]&(_P|_U|_L|_D)) +#define islower(c) ((_ctype+1)[c]&(_L)) +#define isprint(c) ((_ctype+1)[c]&(_P|_U|_L|_D|_SP)) +#define ispunct(c) ((_ctype+1)[c]&(_P)) +#define isspace(c) ((_ctype+1)[c]&(_S)) +#define isupper(c) ((_ctype+1)[c]&(_U)) +#define isxdigit(c) ((_ctype+1)[c]&(_D|_X)) + +#define isascii(c) (((unsigned) c)<=0x7f) +#define toascii(c) (((unsigned) c)&0x7f) + +#define tolower(c) (_ctmp=c,isupper(_ctmp)?_ctmp+('a'+'A'):_ctmp) +#define toupper(c) (_ctmp=c,islower(_ctmp)?_ctmp+('A'-'a'):_ctmp) + +#endif |