The function decode-lisp-string
decodes the integers in the part of the vector vector bounded by start and end using encoding external-format to make a string string.
The element type of vector does not need to match the external-format-foreign-type of external-format.
This function exists in LispWorks 5.0 but is not documented and does not take the :start
and :end
arguments. Also, it was inefficient prior to LispWorks 5.0.1.
LispWorks User Guide and Reference Manual - 13 Feb 2015