- * uprf.c -- "unsigned" lexical prefix
- *
- * $Id$
- *
- * This code is Copyright (c) 2002, by the authors of nmh. See the
- * COPYRIGHT file in the root directory of the nmh distribution for
- * complete copyright information.
- */
+** uprf.c -- "unsigned" lexical prefix
+**
+** This code is Copyright (c) 2002, by the authors of nmh. See the
+** COPYRIGHT file in the root directory of the nmh distribution for
+** complete copyright information.
+*/
- while ((c = *c2++))
- {
-#ifdef LOCALE
- c &= 0xff;
- mask = *c1 & 0xff;
- c = (isalpha(c) && isupper(c)) ? tolower(c) : c;
- mask = (isalpha(mask) && isupper(mask)) ? tolower(mask) : mask;
- if (c != mask)
-#else
- mask = (isalpha(c) && isalpha(*c1)) ? TO_LOWER : NO_MASK;
- if ((c | mask) != (*c1 | mask))
-#endif
- return 0;
- else
- c1++;
- }
- return 1;
+ while ((c = *c2++)) {
+ if (tolower(c &= 0xff) != tolower(*c1 & 0xff))
+ return 0;
+ else
+ c1++;
+ }
+ return 1;