Listing 3

/* _Ctype conversion table - ASCII version
 * copyright (c) 1990 by P.J. Plauger
 */
#include <ctype.h>
#include <limits.h>
#include <stdio.h>
#if EOF != -1 || UCHAR_MAX != 255
#error WRONG CTYPE TABLE
#endif

#define XDI (_DI|_XD)
#define XLO (_LO|_XD)
#define XUP (_UP|_XD)

static const short ctyp_tab[257] = {0, /*  EOF */
 _BB, _BB, _BB, _BB, _BB, _BB, _BB, _BB,
 _BB, _CN, _CN, _CN, _CN, _CN, _BB, _BB,
 _BB, _BB, _BB, _BB, _BB, _BB, _BB, _BB,
 _BB, _BB, _BB, _BB, _BB, _BB, _BB, _BB,
 _SP, _PU, _PU, _PU, _PU, _PU, _PU, _PU,
 _PU, _PU, _PU, _PU, _PU, _PU, _PU, _PU,
 XDI, XDI, XDI, XDI, XDI, XDI, XDI, XDI,
 XDI, XDI, _PU, _PU, _PU, _PU, _PU, _PU,
 _PU, XUP, XUP, XUP, XUP, XUP, XUP, _UP,
 _UP, _UP, _UP, _UP, _UP, _UP, _UP, _UP,
 _UP, _UP, _UP, _UP, _UP, _UP, _UP, _UP,
 _UP, _UP, _UP, _PU, _PU, _PU, _PU, _PU,
 _PU, XLO, XLO, XLO, XLO, XLO, XLO, _LO,
 _LO, _LO, _LO, _LO, _LO, _LO, _LO, _LO,
 _LO, _LO, _LO, _LO, _LO, _LO, _LO, _LO,
 _LO, _LO, _LO, _PU, _PU, _PU, _PU, _BB,
 };   /*  rest all match nothing */

const short *_Ctype = &ctyp_tab[-EOF];
     ____________________________________________
/* _Tolower conversion table - ASCII version
 * copyright (c) 1990 by P.J. Plauger
 */
#include <ctype.h>
#include <limits.h>
#include <stdio.h>
#if EOF != -1 || UCHAR_MAX != 255
#error WRONG TOLOWER TABLE
#endif

static const short tolow_tab[257] = {E0F,
 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27,
 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
 0x40,  'a',  'b',  'c',  'd',  'e',  'f',  'g',
  'h',  'i',  'j',  'k',  'l',  'm',  'n',  'o',
  'p',  'q',  'r',  's',  't',  'u',  'v',  'w',
  'x',  'y',  'z', 0x5b, 0x5c, 0x5d, 0x5e, 0x5f,
 0x60,  'a',  'b',  'c',  'd',  'e',  'f',  'g',
  'h',  'i',  'j',  'k',  'l',  'm',  'n',  'o',
  'p',  'q',  'r',  's',  't',  'u',  'v',  'w',
  'x',  'y',  'z', 0x7b, 0x7c, 0x7d, 0x7e, 0x7f,

 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f,
 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7,
 0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf,
 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7,
 0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf,
 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7,
 0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf,
 0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7,
 0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf,
 0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7,
 0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef,
 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff};

const short *_Tolower = &tolow_tab[-E0F];
     ____________________________________________
/* _Toupper conversion table - ASCII version
 * copyright (c) 1990 by P.J. Plauger
 */
#include <ctype.h>
#include <limits.h>
#include <stdio.h>
#if E0F != -1 || UCHAR_MAX != 255
#error WRONG TOUPPER TABLE
#endif

static const short toup_tab[257] = {E0F,
 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06,0x07,
 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e,0x0f,
 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16,0x17,
 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e,0x1f,
 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26,0x27,
 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e,0x2f,
 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36,0x37,
 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e,0x3f,
 0x40,  'A',  'B',  'C',  'D',  'E',  'F',  'G',
  'H',  'I',  'J',  'K',  'L',  'M',  'N',  'O',
  'P',  'Q',  'R',  'S',  'T',  'U',  'V',  'W',
  'X',  'Y',  'Z', 0x5b, 0x5c, 0x5d, 0x5e, 0x5f,
 0x60,  'A',  'B',  'C',  'D',  'E',  'F',  'G',
  'H',  'I',  'J',  'K',  'L',  'M',  'N',  'O',
  'P',  'Q',  'R',  'S',  'T',  'U',  'V',  'W',
  'X',  'Y',  'Z', 0x7b, 0x7c, 0x7d, 0x7e, 0x7f,
 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f,
 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7,
 0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf,
 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7,
 0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf,
 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7,
 0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf,
 0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7,
 0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf,
 0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7,
 0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef,
 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff};

const short *_Toupper = &toup_tab[-EOF];