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mntlib16.lzh
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CTYPE.C
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C/C++ Source or Header
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1993-07-29
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3KB
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81 lines
/* originally from dLibs, by Dale Schumacher */
/*
* CTYPE.C Character classification and conversion
*/
#include <ctype.h>
#include <limits.h>
#undef toupper /* note that in gcc we have a safe version of these, */
#undef tolower /* but its better to leave these as routines in case */
/* some code uses these as function pointers -- i */
/* have seen code that does. */
static unsigned char _myctype[UCHAR_MAX+2] =
{
0, /* isXXX(EOF) caught here */
_CTc, _CTc, _CTc, _CTc, /* 0x00..0x03 */
_CTc, _CTc, _CTc, _CTc, /* 0x04..0x07 */
_CTc, _CTc|_CTs, _CTc|_CTs, _CTc|_CTs, /* 0x08..0x0B */
_CTc|_CTs, _CTc|_CTs, _CTc, _CTc, /* 0x0C..0x0F */
_CTc, _CTc, _CTc, _CTc, /* 0x10..0x13 */
_CTc, _CTc, _CTc, _CTc, /* 0x14..0x17 */
_CTc, _CTc, _CTc, _CTc, /* 0x18..0x1B */
_CTc, _CTc, _CTc, _CTc, /* 0x1C..0x1F */
_CTs, _CTp, _CTp, _CTp, /* 0x20..0x23 */
_CTp, _CTp, _CTp, _CTp, /* 0x24..0x27 */
_CTp, _CTp, _CTp, _CTp, /* 0x28..0x2B */
_CTp, _CTp, _CTp, _CTp, /* 0x2C..0x2F */
_CTd|_CTx, _CTd|_CTx, _CTd|_CTx, _CTd|_CTx, /* 0x30..0x33 */
_CTd|_CTx, _CTd|_CTx, _CTd|_CTx, _CTd|_CTx, /* 0x34..0x37 */
_CTd|_CTx, _CTd|_CTx, _CTp, _CTp, /* 0x38..0x3B */
_CTp, _CTp, _CTp, _CTp, /* 0x3C..0x3F */
_CTp, _CTu|_CTx, _CTu|_CTx, _CTu|_CTx, /* 0x40..0x43 */
_CTu|_CTx, _CTu|_CTx, _CTu|_CTx, _CTu, /* 0x44..0x47 */
_CTu, _CTu, _CTu, _CTu, /* 0x48..0x4B */
_CTu, _CTu, _CTu, _CTu, /* 0x4C..0x4F */
_CTu, _CTu, _CTu, _CTu, /* 0x50..0x53 */
_CTu, _CTu, _CTu, _CTu, /* 0x54..0x57 */
_CTu, _CTu, _CTu, _CTp, /* 0x58..0x5B */
_CTp, _CTp, _CTp, _CTp, /* 0x5C..0x5F */
_CTp, _CTl|_CTx, _CTl|_CTx, _CTl|_CTx, /* 0x60..0x63 */
_CTl|_CTx, _CTl|_CTx, _CTl|_CTx, _CTl, /* 0x64..0x67 */
_CTl, _CTl, _CTl, _CTl, /* 0x68..0x6B */
_CTl, _CTl, _CTl, _CTl, /* 0x6C..0x6F */
_CTl, _CTl, _CTl, _CTl, /* 0x70..0x73 */
_CTl, _CTl, _CTl, _CTl, /* 0x74..0x77 */
_CTl, _CTl, _CTl, _CTp, /* 0x78..0x7B */
_CTp, _CTp, _CTp, _CTc, /* 0x7C..0x7F */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x80..0x8F */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x90..0x9F */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xA0..0xAF */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xB0..0xBF */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xC0..0xCF */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xD0..0xDF */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xE0..0xEF */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 /* 0xF0..0xFF */
};
unsigned char *_ctype = &(_myctype[1]);
int toupper(c)
int c;
{
return(islower(c) ? (c ^ 0x20) : (c));
}
int tolower(c)
int c;
{
return(isupper(c) ? (c ^ 0x20) : (c));
}