uc_is_digit        32 maint/gnulib/lib/c32isdigit.c #define UCS_FUNC uc_is_digit
uc_is_digit       993 maint/gnulib/lib/unictype.in.h        uc_is_digit (ucs4_t uc)
uc_is_digit        22 maint/gnulib/tests/unictype/test-ctype_digit.c #define PREDICATE(c) uc_is_digit (c)