Macro PL_TR_SPECIAL_HANDLING_UTF8 

macro_rules! PL_TR_SPECIAL_HANDLING_UTF8 {
    ($my_perl:expr) => { ... };
}

PL_TR_SPECIAL_HANDLING_UTF8 — PERLVARA(I, TR_SPECIAL_HANDLING_UTF8, UTF8_MAXBYTES, char)

Fixed-length array of UTF8_MAXBYTES elements.