#endif
#define UTF8_IS_ASCII(c) UTF8_IS_INVARIANT(c)
+
+#define UNICODE_LATIN_SMALL_LETTER_SHARP_S 0x00DF
+#define UNICODE_GREEK_CAPITAL_LETTER_SIGMA 0x03A3
+#define UNICODE_GREEK_SMALL_LETTER_FINAL_SIGMA 0x03C2
+#define UNICODE_GREEK_SMALL_LETTER_SIGMA 0x03C3
+
+#define UNI_DISPLAY_ISPRINT 0x0001
+#define UNI_DISPLAY_BACKSLASH 0x0002
+#define UNI_DISPLAY_QQ (UNI_DISPLAY_ISPRINT|UNI_DISPLAY_BACKSLASH)
+#define UNI_DISPLAY_REGEX (UNI_DISPLAY_ISPRINT|UNI_DISPLAY_BACKSLASH)
+
+#define ANYOF_UNICODE_FOLD_SHARP_S(n, s, e) \
+ (ANYOF_BITMAP_TEST(n, UNICODE_LATIN_SMALL_LETTER_SHARP_S) && \
+ ANYOF_FLAGS(n) & ANYOF_UNICODE && \
+ ANYOF_FLAGS(n) & ANYOF_FOLD && \
+ ((e) > (s) + 1) && \
+ toLOWER((s)[0]) == 's' && \
+ toLOWER((s)[1]) == 's')