Internet Direct (Indy) Version 9.0.1 Beta
TIdEncoder3to4.CodingTable
Specifies the valid characters for the encoder alphabet.

property CodingTable: string;
Description
CodingTable is a read-only String property that identifies the valid characters for the encoder. Note: TIdEncoder3to4 does not specify the valid characters in CodingTable. Application will generally use a descendant class, like TIdCoderMIME or TIdCoderUUE, where the alphabet is specified.