    is_upper         2287 libglibc/regex.c                         boolean is_upper = STREQ (str, "upper");
    is_upper         2311 libglibc/regex.c 			    if (translate && (is_upper || is_lower)
    is_upper         2329 libglibc/regex.c                         boolean is_upper = STREQ (str, "upper");
    is_upper         2357 libglibc/regex.c                                 || (is_upper  && ISUPPER (ch))
    is_upper         2360 libglibc/regex.c 			    if (   translate && (is_upper || is_lower)