Both the pipe | and the underscore _ characters have a special function for the string encoding, as they are used as delimiter char or as null placeholder respectively.
I cannot see any escaping functionality so I suspect that the whole encoded message would be broken if these chars were actually also part of the body content.
Therefore I would suggest to add an escaping mechanism of pipes and underscores whenever they occur as message body content to be sure the encoded string has no corrupted parts.
SamCooper
commented
8 years ago
Both the pipe | and the underscore _ characters have a special function for the string encoding, as they are used as delimiter char or as null placeholder respectively. I cannot see any escaping functionality so I suspect that the whole encoded message would be broken if these chars were actually also part of the body content. Therefore I would suggest to add an escaping mechanism of pipes and underscores whenever they occur as message body content to be sure the encoded string has no corrupted parts.