-/*
- * ctype.h
- *
- * Ullrich von Bassewitz, 03.06.1998
- *
- */
+/*****************************************************************************/
+/* */
+/* ctype.h */
+/* */
+/* Character handling */
+/* */
+/* */
+/* */
+/* (C) 1998-2000 Ullrich von Bassewitz */
+/* Wacholderweg 14 */
+/* D-70597 Stuttgart */
+/* EMail: uz@musoftware.de */
+/* */
+/* */
+/* This software is provided 'as-is', without any expressed or implied */
+/* warranty. In no event will the authors be held liable for any damages */
+/* arising from the use of this software. */
+/* */
+/* Permission is granted to anyone to use this software for any purpose, */
+/* including commercial applications, and to alter it and redistribute it */
+/* freely, subject to the following restrictions: */
+/* */
+/* 1. The origin of this software must not be misrepresented; you must not */
+/* claim that you wrote the original software. If you use this software */
+/* in a product, an acknowledgment in the product documentation would be */
+/* appreciated but is not required. */
+/* 2. Altered source versions must be plainly marked as such, and must not */
+/* be misrepresented as being the original software. */
+/* 3. This notice may not be removed or altered from any source */
+/* distribution. */
+/* */
+/*****************************************************************************/
#define _CTYPE_H
+/* The array containing character classification data */
+extern unsigned char _ctype[256];
+/* Bits used to specify characters classes */
+#define _CT_LOWER 0x01 /* 0 - Lower case char */
+#define _CT_UPPER 0x02 /* 1 - Upper case char */
+#define _CT_DIGIT 0x04 /* 2 - Numeric digit */
+#define _CT_XDIGIT 0x08 /* 3 - Hex digit (both, lower and upper) */
+#define _CT_CNTRL 0x10 /* 4 - Control character */
+#define _CT_SPACE 0x20 /* 5 - The space character itself */
+#define _CT_OTHER_WS 0x40 /* 6 - Other whitespace ('\f', '\n', '\r', '\t' and '\v') */
+#define _CT_SPACE_TAB 0x80 /* 7 - Space or tab character */
+
+/* Bit combinations */
+#define _CT_ALNUM (_CT_LOWER | _CT_UPPER | _CT_DIGIT)
+#define _CT_ALPHA (_CT_LOWER | _CT_UPPER)
+#define _CT_NOT_GRAPH (_CT_CNTRL | _CT_SPACE)
+#define _CT_NOT_PRINT (_CT_CNTRL)
+#define _CT_NOT_PUNCT (_CT_SPACE | _CT_CNTRL | _CT_DIGIT | _CT_UPPER | _CT_LOWER)
+#define _CT_WS (_CT_SPACE | _CT_OTHER_WS)
+
+/* Character classification functions */
int __fastcall__ isalnum (int c);
int __fastcall__ isalpha (int c);
int __fastcall__ iscntrl (int c);
/* When inlining of known function is enabled, overload most of the above
* functions by macros. The function prototypes are again available after
* #undef'ing the macros.
-*/
+ * Please note that the following macros do NOT handle EOF correctly, as
+ * stated in the manual. If you need correct behaviour for EOF, don't
+ * use -Os, or #undefine the following macros.
+ */
#ifdef __OPT_s__
-
-extern unsigned char _ctype[256];
-
-#define isalnum(c) (__AX__ = (c), __asm__ ("\ttay\n\tlda\t__ctype,y\n\tand\t#$07"), __AX__)
-#define isalpha(c) (__AX__ = (c), __asm__ ("\ttay\n\tlda\t__ctype,y\n\tand\t#$03"), __AX__)
-#define iscntrl(c) (__AX__ = (c), __asm__ ("\ttay\n\tlda\t__ctype,y\n\tand\t#$10"), __AX__)
-#define isdigit(c) (__AX__ = (c), __asm__ ("\ttay\n\tlda\t__ctype,y\n\tand\t#$04"), __AX__)
-#define isgraph(c) (__AX__ = (c), __asm__ ("\ttay\n\tlda\t__ctype,y\n\teor\t#$30\n\tand\t#$30"), __AX__)
-#define islower(c) (__AX__ = (c), __asm__ ("\ttay\n\tlda\t__ctype,y\n\tand\t#$01"), __AX__)
-#define isprint(c) (__AX__ = (c), __asm__ ("\ttay\n\tlda\t__ctype,y\n\teor\t#$10\n\tand\t#$10"), __AX__)
-#define ispunct(c) (__AX__ = (c), __asm__ ("\ttay\n\tlda\t__ctype,y\n\teor\t#$37\n\tand\t#$37"), __AX__)
-#define isspace(c) (__AX__ = (c), __asm__ ("\ttay\n\tlda\t__ctype,y\n\tand\t#$60"), __AX__)
-#define isupper(c) (__AX__ = (c), __asm__ ("\ttay\n\tlda\t__ctype,y\n\tand\t#$02"), __AX__)
-#define isxdigit(c) (__AX__ = (c), __asm__ ("\ttay\n\tlda\t__ctype,y\n\tand\t#$08"), __AX__)
-
-#ifndef __STRICT_ANSI__
-/* cc65 and GNU extension */
-#define isblank(c) (__AX__ = (c), __asm__ ("\ttay\n\tlda\t__ctype,y\n\tand\t#$80"), __AX__)
+#define isalnum(c) (__AX__ = (c), \
+ __asm__ ("tay"), \
+ __asm__ ("lda %v,y", _ctype), \
+ __asm__ ("and #%b", _CT_ALNUM), \
+ __AX__)
+
+#define isalpha(c) (__AX__ = (c), \
+ __asm__ ("tay"), \
+ __asm__ ("lda %v,y", _ctype), \
+ __asm__ ("and #%b", _CT_ALPHA), \
+ __AX__)
+
+#ifndef STRICT_ANSI
+#define isblank(c) (__AX__ = (c), \
+ __asm__ ("tay"), \
+ __asm__ ("lda %v,y", _ctype), \
+ __asm__ ("and #%b", _CT_SPACE_TAB), \
+ __AX__)
#endif
+#define iscntrl(c) (__AX__ = (c), \
+ __asm__ ("tay"), \
+ __asm__ ("lda %v,y", _ctype), \
+ __asm__ ("and #%b", _CT_CNTRL), \
+ __AX__)
+
+#define isdigit(c) (__AX__ = (c), \
+ __asm__ ("tay"), \
+ __asm__ ("lda %v,y", _ctype), \
+ __asm__ ("and #%b", _CT_DIGIT), \
+ __AX__)
+
+#define isgraph(c) (__AX__ = (c), \
+ __asm__ ("tay"), \
+ __asm__ ("lda %v,y", _ctype), \
+ __asm__ ("eor #%b", _CT_NOT_GRAPH), \
+ __asm__ ("and #%b", _CT_NOT_GRAPH), \
+ __AX__)
+
+#define islower(c) (__AX__ = (c), \
+ __asm__ ("tay"), \
+ __asm__ ("lda %v,y", _ctype), \
+ __asm__ ("and #%b", _CT_LOWER), \
+ __AX__)
+
+#define isprint(c) (__AX__ = (c), \
+ __asm__ ("tay"), \
+ __asm__ ("lda %v,y", _ctype), \
+ __asm__ ("eor #%b", _CT_NOT_PRINT), \
+ __asm__ ("and #%b", _CT_NOT_PRINT), \
+ __AX__)
+
+#define ispunct(c) (__AX__ = (c), \
+ __asm__ ("tay"), \
+ __asm__ ("lda %v,y", _ctype), \
+ __asm__ ("eor #%b", _CT_NOT_PUNCT), \
+ __asm__ ("and #%b", _CT_NOT_PUNCT), \
+ __AX__)
+
+#define isspace(c) (__AX__ = (c), \
+ __asm__ ("tay"), \
+ __asm__ ("lda %v,y", _ctype), \
+ __asm__ ("and #%b", _CT_WS), \
+ __AX__)
+
+#define isupper(c) (__AX__ = (c), \
+ __asm__ ("tay"), \
+ __asm__ ("lda %v,y", _ctype), \
+ __asm__ ("and #%b", _CT_UPPER), \
+ __AX__)
+
+#define isxdigit(c) (__AX__ = (c), \
+ __asm__ ("tay"), \
+ __asm__ ("lda %v,y", _ctype), \
+ __asm__ ("and #%b", _CT_XDIGIT), \
+ __AX__)
#endif
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