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https://github.com/cc65/cc65.git
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186 lines
8.2 KiB
C
186 lines
8.2 KiB
C
/*****************************************************************************/
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/* */
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/* ctype.h */
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/* */
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/* Character handling */
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/* */
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/* */
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/* */
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/* (C) 1998-2013, Ullrich von Bassewitz */
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/* Roemerstrasse 52 */
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/* D-70794 Filderstadt */
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/* EMail: uz@cc65.org */
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/* */
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/* */
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/* This software is provided 'as-is', without any expressed or implied */
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/* warranty. In no event will the authors be held liable for any damages */
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/* arising from the use of this software. */
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/* */
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/* Permission is granted to anyone to use this software for any purpose, */
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/* including commercial applications, and to alter it and redistribute it */
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/* freely, subject to the following restrictions: */
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/* */
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/* 1. The origin of this software must not be misrepresented; you must not */
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/* claim that you wrote the original software. If you use this software */
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/* in a product, an acknowledgment in the product documentation would be */
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/* appreciated but is not required. */
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/* 2. Altered source versions must be plainly marked as such, and must not */
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/* be misrepresented as being the original software. */
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/* 3. This notice may not be removed or altered from any source */
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/* distribution. */
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/* */
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/*****************************************************************************/
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#ifndef _CTYPE_H
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#define _CTYPE_H
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/* The array containing character classification data */
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extern unsigned char _ctype[256];
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/* Bits used to specify character classes */
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#define _CT_LOWER 0x01 /* 0 - Lower case char */
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#define _CT_UPPER 0x02 /* 1 - Upper case char */
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#define _CT_DIGIT 0x04 /* 2 - Numeric digit */
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#define _CT_XDIGIT 0x08 /* 3 - Hex digit (both lower and upper) */
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#define _CT_CNTRL 0x10 /* 4 - Control character */
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#define _CT_SPACE 0x20 /* 5 - The space character itself */
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#define _CT_OTHER_WS 0x40 /* 6 - Other whitespace ('\f', '\n', '\r', '\t', and '\v') */
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#define _CT_SPACE_TAB 0x80 /* 7 - Space or tab character */
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/* Bit combinations */
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#define _CT_ALNUM (_CT_LOWER | _CT_UPPER | _CT_DIGIT)
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#define _CT_ALPHA (_CT_LOWER | _CT_UPPER)
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#define _CT_NOT_GRAPH (_CT_CNTRL | _CT_SPACE)
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#define _CT_NOT_PRINT (_CT_CNTRL)
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#define _CT_NOT_PUNCT (_CT_SPACE | _CT_CNTRL | _CT_DIGIT | _CT_UPPER | _CT_LOWER)
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#define _CT_WS (_CT_SPACE | _CT_OTHER_WS)
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/* Character classification functions */
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int __fastcall__ isalnum (int c);
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int __fastcall__ isalpha (int c);
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int __fastcall__ iscntrl (int c);
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int __fastcall__ isdigit (int c);
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int __fastcall__ isgraph (int c);
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int __fastcall__ islower (int c);
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int __fastcall__ isprint (int c);
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int __fastcall__ ispunct (int c);
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int __fastcall__ isspace (int c);
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int __fastcall__ isupper (int c);
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int __fastcall__ isxdigit (int c);
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#if __CC65_STD__ >= __CC65_STD_C99__
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int __fastcall__ isblank (int c); /* New in C99 */
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#endif
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int __fastcall__ toupper (int c); /* Always external */
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int __fastcall__ tolower (int c); /* Always external */
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#if __CC65_STD__ >= __CC65_STD_CC65__
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unsigned char __fastcall__ toascii (unsigned char c);
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/* Convert a target-specific character to ASCII. */
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#endif
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/* When inlining-of-known-functions is enabled, overload most of the above
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* functions by macroes. The function prototypes are available again after
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* #undef'ing the macroes.
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* Please note that the following macroes do NOT handle EOF correctly, as
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* stated in the manual. If you need correct behaviour for EOF, don't
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* use -Os, or #undefine the following macroes.
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*/
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#ifdef __OPT_s__
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#define isalnum(c) (__AX__ = (c), \
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__asm__ ("tay"), \
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__asm__ ("lda %v,y", _ctype), \
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__asm__ ("and #%b", _CT_ALNUM), \
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__AX__)
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#define isalpha(c) (__AX__ = (c), \
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__asm__ ("tay"), \
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__asm__ ("lda %v,y", _ctype), \
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__asm__ ("and #%b", _CT_ALPHA), \
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__AX__)
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#if __CC65_STD__ >= __CC65_STD_C99__
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#define isblank(c) (__AX__ = (c), \
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__asm__ ("tay"), \
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__asm__ ("lda %v,y", _ctype), \
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__asm__ ("and #%b", _CT_SPACE_TAB), \
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__AX__)
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#endif
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#define iscntrl(c) (__AX__ = (c), \
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__asm__ ("tay"), \
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__asm__ ("lda %v,y", _ctype), \
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__asm__ ("and #%b", _CT_CNTRL), \
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__AX__)
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#define isdigit(c) (__AX__ = (c), \
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__asm__ ("tay"), \
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__asm__ ("lda %v,y", _ctype), \
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__asm__ ("and #%b", _CT_DIGIT), \
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__AX__)
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#define isgraph(c) (__AX__ = (c), \
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__asm__ ("tay"), \
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__asm__ ("lda %v,y", _ctype), \
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__asm__ ("and #%b", _CT_NOT_GRAPH), \
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__asm__ ("cmp #1"), \
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__asm__ ("lda #1"), \
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__asm__ ("sbc #1"), \
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__AX__)
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#define islower(c) (__AX__ = (c), \
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__asm__ ("tay"), \
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__asm__ ("lda %v,y", _ctype), \
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__asm__ ("and #%b", _CT_LOWER), \
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__AX__)
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#define isprint(c) (__AX__ = (c), \
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__asm__ ("tay"), \
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__asm__ ("lda %v,y", _ctype), \
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__asm__ ("and #%b", _CT_NOT_PRINT), \
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__asm__ ("eor #%b", _CT_NOT_PRINT), \
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__AX__)
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#define ispunct(c) (__AX__ = (c), \
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__asm__ ("tay"), \
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__asm__ ("lda %v,y", _ctype), \
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__asm__ ("and #%b", _CT_NOT_PUNCT), \
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__asm__ ("cmp #1"), \
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__asm__ ("lda #1"), \
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__asm__ ("sbc #1"), \
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__AX__)
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#define isspace(c) (__AX__ = (c), \
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__asm__ ("tay"), \
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__asm__ ("lda %v,y", _ctype), \
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__asm__ ("and #%b", _CT_WS), \
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__AX__)
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#define isupper(c) (__AX__ = (c), \
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__asm__ ("tay"), \
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__asm__ ("lda %v,y", _ctype), \
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__asm__ ("and #%b", _CT_UPPER), \
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__AX__)
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#define isxdigit(c) (__AX__ = (c), \
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__asm__ ("tay"), \
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__asm__ ("lda %v,y", _ctype), \
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__asm__ ("and #%b", _CT_XDIGIT), \
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__AX__)
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#endif
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/* End of ctype.h */
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#endif
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