If *print-array* is true and *print-readably* is false, any
vector
other than a string or bit vector is printed using
general-vector syntax; this means that information
about specialized vector representations does not appear.
The printed representation of a zero-length vector is #().
The printed representation of a non-zero-length vector begins with #(.
Following that, the first element of the vector is printed.
If there are any other elements, they are printed in turn, with each such additional element preceded by a space if *print-pretty* is false, or whitespace_1 if *print-pretty* is true.
A right-parenthesis after the last element terminates the printed representation of the vector. The printing of vectors is affected by *print-level* and *print-length*. If the vector has a fill pointer, then only those elements below the fill pointer are printed.
If both *print-array* and *print-readably* are false,
the vector is not printed as described above,
but in a format (using #<) that is concise but not readable.
If *print-readably* is true, the vector prints in an implementation-defined manner; see the variable *print-readably*.
For information on how the Lisp reader parses these "other vectors," see Sharpsign Left-Parenthesis.