Using msgmapdata

This command uses a character-map table to transliterate a message.

For example:

Input: msgcreate "This is ASCII"
Output: message1

Input: msgmapdata message1 ibm_a2e fi

Input: msgdump message1
Output: [...] message : '\xe3\x88\x89\xa2@\x89\xa2@\xc1\xe2\xc3\xc9\xc9'

Input: msgmapdata message1 ibm_e2a fi

Input: msgdump message1
Output: [...] message : 'This is ASCII'

This command returns an empty string.