s++;
}
-/* \c?, \c\, \c^, \c_, and \cA..\cZ minus the ones that have traditionally
- * been matched by \s on ASCII platforms, are the legal control char names
- * here, that is \c? plus 1-32 minus the \s ones. */
+/* Is the byte 'd' a legal single character identifier name? 'u' is true
+ * iff Unicode semantics are to be used. The legal ones are any of:
+ * a) ASCII digits
+ * b) ASCII punctuation
+ * c) When not under Unicode rules, any upper Latin1 character
+ * d) \c?, \c\, \c^, \c_, and \cA..\cZ, minus the ones that have traditionally
+ * been matched by \s on ASCII platforms. That is: \c?, plus 1-32, minus
+ * the \s ones. */
#define VALID_LEN_ONE_IDENT(d, u) (isPUNCT_A((U8)(d)) \
|| isDIGIT_A((U8)(d)) \
|| (!(u) && !isASCII((U8)(d))) \