all-external-formats

Arguments:

This function returns the list of all active external-format objects. This function is setf-able. Thus, one can effectively remove an external-format from the Lisp system by using (setf all-external-formats) specifying a list that does not include that external-format.

Examples:

(let ((before (all-external-formats)))
   (def-external-format :test)
   (set-difference (all-external-formats) before))
      -> (#<external-format :test>)

See iacl.htm for more information on international character support in Allegro CL.

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Created 2019.8.20.