git.sur5r.net Git - cc65/blob - include/ctype.h

   1 /*****************************************************************************/
   2 /*                                                                           */
   3 /*                                  ctype.h                                  */
   4 /*                                                                           */
   5 /*                            Character handling                             */
   6 /*                                                                           */
   7 /*                                                                           */
   8 /*                                                                           */
   9 /* (C) 1998-2013, Ullrich von Bassewitz                                      */
  10 /*                Roemerstrasse 52                                           */
  11 /*                D-70794 Filderstadt                                        */
  12 /* EMail:         uz@cc65.org                                                */
  13 /*                                                                           */
  14 /*                                                                           */
  15 /* This software is provided 'as-is', without any expressed or implied       */
  16 /* warranty.  In no event will the authors be held liable for any damages    */
  17 /* arising from the use of this software.                                    */
  18 /*                                                                           */
  19 /* Permission is granted to anyone to use this software for any purpose,     */
  20 /* including commercial applications, and to alter it and redistribute it    */
  21 /* freely, subject to the following restrictions:                            */
  22 /*                                                                           */
  23 /* 1. The origin of this software must not be misrepresented; you must not   */
  24 /*    claim that you wrote the original software. If you use this software   */
  25 /*    in a product, an acknowledgment in the product documentation would be  */
  26 /*    appreciated but is not required.                                       */
  27 /* 2. Altered source versions must be plainly marked as such, and must not   */
  28 /*    be misrepresented as being the original software.                      */
  29 /* 3. This notice may not be removed or altered from any source              */
  30 /*    distribution.                                                          */
  31 /*                                                                           */
  32 /*****************************************************************************/
  33
  34
  35
  36 #ifndef _CTYPE_H
  37 #define _CTYPE_H
  38
  39
  40 /* The array containing character classification data */
  41 extern unsigned char _ctype[256];
  42
  43 /* Bits used to specify character classes */
  44 #define _CT_LOWER       0x01    /* 0 - Lower case char */
  45 #define _CT_UPPER       0x02    /* 1 - Upper case char */
  46 #define _CT_DIGIT       0x04    /* 2 - Numeric digit */
  47 #define _CT_XDIGIT      0x08    /* 3 - Hex digit (both lower and upper) */
  48 #define _CT_CNTRL       0x10    /* 4 - Control character */
  49 #define _CT_SPACE       0x20    /* 5 - The space character itself */
  50 #define _CT_OTHER_WS    0x40    /* 6 - Other whitespace ('\f', '\n', '\r', '\t', and '\v') */
  51 #define _CT_SPACE_TAB   0x80    /* 7 - Space or tab character */
  52
  53 /* Bit combinations */
  54 #define _CT_ALNUM       (_CT_LOWER | _CT_UPPER | _CT_DIGIT)
  55 #define _CT_ALPHA       (_CT_LOWER | _CT_UPPER)
  56 #define _CT_NOT_GRAPH   (_CT_CNTRL | _CT_SPACE)
  57 #define _CT_NOT_PRINT   (_CT_CNTRL)
  58 #define _CT_NOT_PUNCT   (_CT_SPACE | _CT_CNTRL | _CT_DIGIT | _CT_UPPER | _CT_LOWER)
  59 #define _CT_WS          (_CT_SPACE | _CT_OTHER_WS)
  60
  61 /* Character classification functions */
  62 int __fastcall__ isalnum (int c);
  63 int __fastcall__ isalpha (int c);
  64 int __fastcall__ iscntrl (int c);
  65 int __fastcall__ isdigit (int c);
  66 int __fastcall__ isgraph (int c);
  67 int __fastcall__ islower (int c);
  68 int __fastcall__ isprint (int c);
  69 int __fastcall__ ispunct (int c);
  70 int __fastcall__ isspace (int c);
  71 int __fastcall__ isupper (int c);
  72 int __fastcall__ isxdigit (int c);
  73 #if __CC65_STD__ >= __CC65_STD_C99__
  74 int __fastcall__ isblank (int c);       /* New in C99 */
  75 #endif
  76
  77 int __fastcall__ toupper (int c);       /* Always external */
  78 int __fastcall__ tolower (int c);       /* Always external */
  79
  80 #if __CC65_STD__ >= __CC65_STD_CC65__
  81 unsigned char __fastcall__ toascii (unsigned char c);
  82 /* Convert a target-specific character to ASCII. */
  83 #endif
  84
  85
  86
  87 /* When --eagerly-inline-funcs is enabled, overload most of the above
  88 ** functions by macroes. The function prototypes are available again after
  89 ** #undef'ing the macroes.
  90 ** Please note that the following macroes do NOT handle EOF correctly, as
  91 ** stated in the manual. If you need correct behaviour for EOF, don't
  92 ** use --eagerly-inline-funcs, or #undefine the following macroes.
  93 */
  94 #ifdef __EAGERLY_INLINE_FUNCS__
  95
  96 #define isalnum(c)  (__AX__ = (c),                      \
  97                     __asm__ ("tay"),                    \
  98                     __asm__ ("lda %v,y", _ctype),       \
  99                     __asm__ ("and #%b", _CT_ALNUM),     \
 100                     __AX__)
 101
 102 #define isalpha(c)  (__AX__ = (c),                      \
 103                     __asm__ ("tay"),                    \
 104                     __asm__ ("lda %v,y", _ctype),       \
 105                     __asm__ ("and #%b", _CT_ALPHA),     \
 106                     __AX__)
 107
 108 #if __CC65_STD__ >= __CC65_STD_C99__
 109 #define isblank(c)  (__AX__ = (c),                      \
 110                     __asm__ ("tay"),                    \
 111                     __asm__ ("lda %v,y", _ctype),       \
 112                     __asm__ ("and #%b", _CT_SPACE_TAB), \
 113                     __AX__)
 114 #endif
 115
 116 #define iscntrl(c)  (__AX__ = (c),                      \
 117                     __asm__ ("tay"),                    \
 118                     __asm__ ("lda %v,y", _ctype),       \
 119                     __asm__ ("and #%b", _CT_CNTRL),     \
 120                     __AX__)
 121
 122 #define isdigit(c)  (__AX__ = (c),                      \
 123                     __asm__ ("tay"),                    \
 124                     __asm__ ("lda %v,y", _ctype),       \
 125                     __asm__ ("and #%b", _CT_DIGIT),     \
 126                     __AX__)
 127
 128 #define isgraph(c)  (__AX__ = (c),                      \
 129                     __asm__ ("tay"),                    \
 130                     __asm__ ("lda %v,y", _ctype),       \
 131                     __asm__ ("and #%b", _CT_NOT_GRAPH), \
 132                     __asm__ ("cmp #1"),                 \
 133                     __asm__ ("lda #1"),                 \
 134                     __asm__ ("sbc #1"),                 \
 135                     __AX__)
 136
 137 #define islower(c)  (__AX__ = (c),                      \
 138                     __asm__ ("tay"),                    \
 139                     __asm__ ("lda %v,y", _ctype),       \
 140                     __asm__ ("and #%b", _CT_LOWER),     \
 141                     __AX__)
 142
 143 #define isprint(c)  (__AX__ = (c),                      \
 144                     __asm__ ("tay"),                    \
 145                     __asm__ ("lda %v,y", _ctype),       \
 146                     __asm__ ("and #%b", _CT_NOT_PRINT), \
 147                     __asm__ ("eor #%b", _CT_NOT_PRINT), \
 148                     __AX__)
 149
 150 #define ispunct(c)  (__AX__ = (c),                      \
 151                     __asm__ ("tay"),                    \
 152                     __asm__ ("lda %v,y", _ctype),       \
 153                     __asm__ ("and #%b", _CT_NOT_PUNCT), \
 154                     __asm__ ("cmp #1"),                 \
 155                     __asm__ ("lda #1"),                 \
 156                     __asm__ ("sbc #1"),                 \
 157                     __AX__)
 158
 159 #define isspace(c)  (__AX__ = (c),                      \
 160                     __asm__ ("tay"),                    \
 161                     __asm__ ("lda %v,y", _ctype),       \
 162                     __asm__ ("and #%b", _CT_WS),        \
 163                     __AX__)
 164
 165 #define isupper(c)  (__AX__ = (c),                      \
 166                     __asm__ ("tay"),                    \
 167                     __asm__ ("lda %v,y", _ctype),       \
 168                     __asm__ ("and #%b", _CT_UPPER),     \
 169                     __AX__)
 170
 171 #define isxdigit(c) (__AX__ = (c),                      \
 172                     __asm__ ("tay"),                    \
 173                     __asm__ ("lda %v,y", _ctype),       \
 174                     __asm__ ("and #%b", _CT_XDIGIT),    \
 175                     __AX__)
 176
 177 #endif
 178
 179
 180
 181 /* End of ctype.h */
 182 #endif
 183
 184
 185