Find/Determine Functions
F_DOMAINFROMEMAIL
F_FINDWORD, U_FINDWORD
F_FINDWORDINDEX
F_FINDWORDINDEXN(F_FINDWORDINDEX)
F_RWORDCOUNT
F_STRINGCOUNT, F_RSTRINGCOUNT
F_STRINGLENGTH(F_STRINGLENGTH4, F_STRINGLENGTH8, F_STRINGLENGTH32), F_BIGSTRINGLENGTH, U_STRINGLENGTH(U_STRINGLENGTH4, U_STRINGLENGTH8, U_STRINGLENGTH32)
F_STRINGLISTITEM
F_WORDCOUNT
F_WORDNUM