simple-string
simple-string, 2.15.0 23string, vector, simple-array, array, sequence, t
A \term{string} that is not displaced to another \term{array},
has no \term{fill pointer}, and is not to have its size adjusted
dynamically after creation is a \typeref{simple-string}.A simple string is a specialized one-dimensional simple array whose elements are of type character or a subtype of type character. When used as a type specifier for object creation, simple-string means (simple-array character (size)).
Abbreviating.
simple-string [size]
size—a non-negative fixnum, or the symbol *.
4.6.0 11 \itemitem{\tt (simple-string \param{size})}
This denotes the union of all types (simple-array c (size)) for all subtypes c of character; that is, the set of simple strings of size size.