= The Inspector =

CCL has an inspector, an interactive tool to let you look at, and in
some cases modify, Lisp objects.  To inspect a Lisp object, call the
function INSPECT on the object.  This displays the object, showing its
contents as a sequence of numbered "items".  If there are a lot of
items (e.g. a large array) , they're displayed in "pages", i.e. groups
that you can scroll up and down through.  (Each "page" is 20 lines.)

It enters a read-eval-print loop that understands the following
top-level commands:

=== {{{(:i N)}}} ===
 Inspect the N'th item, entering the inspector recursively.

=== {{{:pop}}} ===
 Exit the current inspector level.

=== {{{:show}}} ===
 Show (display) the object being inspected, again.

=== {{{:next}}} ===
 Show next "page" of the object

=== {{{:prev}}} ===
 Show previous "page" of the object

=== {{{:home}}} ===
 Show first "page" of the object

=== {{{(:s N V)}}} ===
 Set the value of the N'th item to V, where that can be done.


If you type in an ordinary Lisp form, it is evaluated and printed.
The variable {{{ccl::@}}} is bound to the object being inspected.

In the {{{:i}}} and {{{:s}}} commands, N is not evaluated, and in the {{{:s}}} command,
V is not evaluated.  (You can use the {{{#.}}} reader macro if you do
want to get something evaluated in those positions.)