--- /dev/null
+/*****************************************************************************/
+/* */
+/* chartype.c */
+/* */
+/* Character classification functions */
+/* */
+/* */
+/* */
+/* (C) 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. */
+/* */
+/*****************************************************************************/
+
+
+
+#include "chartype.h"
+
+
+
+/* This module contains replacements for functions in ctype.h besides other
+ * functions. There is a problem with using ctype.h directly:
+ * The parameter must have a value of "unsigned char" or EOF.
+ * So on platforms where a char is signed, this may give problems or at
+ * least warnings. The wrapper functions below will have an "char" parameter
+ * but handle it correctly. They will NOT work for EOF, but this is not a
+ * problem, since EOF is always handled separately.
+ */
+
+
+
+/*****************************************************************************/
+/* Code */
+/*****************************************************************************/
+
+
+
+int IsAlpha (char C)
+/* Check for a letter */
+{
+ return (C >= 'a' && C <= 'z') || (C >= 'A' && C <= 'Z');
+}
+
+
+
+int IsAlNum (char C)
+/* Check for letter or digit */
+{
+ return (C >= 'a' && C <= 'z') || (C >= 'A' && C <= 'Z') || (C >= '0' && C <= '9');
+}
+
+
+
+int IsAscii (char C)
+/* Check for an ASCII character */
+{
+ return (C & ~0x7F) == 0;
+}
+
+
+
+int IsBlank (char C)
+/* Check for a space, tab or newline */
+{
+ return (C == ' ' || C == '\t' || C == '\n');
+}
+
+
+
+int IsDigit (char C)
+/* Check for a digit */
+{
+ return (C >= '0' && C <= '9');
+}
+
+
+
+int IsLower (char C)
+/* Check for a lower case char */
+{
+ return (C >= 'a' && C <= 'z');
+}
+
+
+
+int IsUpper (char C)
+/* Check for upper case characters */
+{
+ return (C >= 'A' && C <= 'Z');
+}
+
+
+
+int IsXDigit (char C)
+/* Check for hexadecimal digits */
+{
+ return (C >= 'a' && C <= 'f') || (C >= 'A' && C <= 'F') || (C >= '0' && C <= '9');
+}
+
+
+
+int IsQuote (char C)
+/* Check for a single or double quote */
+{
+ return (C == '"' || C == '\'');
+}
+
+
+
--- /dev/null
+/*****************************************************************************/
+/* */
+/* chartype.h */
+/* */
+/* Character classification functions */
+/* */
+/* */
+/* */
+/* (C) 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. */
+/* */
+/*****************************************************************************/
+
+
+
+#ifndef CHARTYPE_H
+#define CHARTYPE_H
+
+
+
+/* This module contains replacements for functions in ctype.h besides other
+ * functions. There is a problem with using ctype.h directly:
+ * The parameter must have a value of "unsigned char" or EOF.
+ * So on platforms where a char is signed, this may give problems or at
+ * least warnings. The wrapper functions below will have an "char" parameter
+ * but handle it correctly. They will NOT work for EOF, but this is not a
+ * problem, since EOF is always handled separately.
+ */
+
+
+
+/*****************************************************************************/
+/* Code */
+/*****************************************************************************/
+
+
+
+int IsAlpha (char C);
+/* Check for a letter */
+
+int IsAlNum (char C);
+/* Check for letter or digit */
+
+int IsAscii (char C);
+/* Check for an ASCII character */
+
+int IsBlank (char C);
+/* Check for a space, tab or newline */
+
+int IsDigit (char C);
+/* Check for a digit */
+
+int IsLower (char C);
+/* Check for a lower case char */
+
+int IsSpace (char C);
+/* Check for white space characters */
+
+int IsUpper (char C);
+/* Check for upper case characters */
+
+int IsXDigit (char C);
+/* Check for hexadecimal digits */
+
+int IsQuote (char C);
+/* Check for a single or double quote */
+
+
+
+/* End of chartype.h */
+
+#endif
+
+
+
projects / cc65 / commitdiff