<FONT COLOR=green><EM>-- Translate the content of the fields buffer - indicated by the</EM></FONT>
<FONT COLOR=green><EM>-- buffer number - into an enumeration value. If the buffer is empty</EM></FONT>
<FONT COLOR=green><EM>-- or the content is invalid, a Constraint_Error is raises.</EM></FONT>
<FONT COLOR=green><EM>-- Translate the content of the fields buffer - indicated by the</EM></FONT>
<FONT COLOR=green><EM>-- buffer number - into an enumeration value. If the buffer is empty</EM></FONT>
<FONT COLOR=green><EM>-- or the content is invalid, a Constraint_Error is raises.</EM></FONT>