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Ienv

Change-ienv

Modifying constructor for ienv structures.

Syntax

(change-ienv x 
             [:uchar-format <uchar-format>] 
             [:schar-format <schar-format>])

This is an often useful alternative to make-ienv.

We construct a new ienv structure that is a copy of x, except that you can explicitly change some particular fields. Any fields you don't mention just keep their values from x.

Definition

This is an ordinary change- macro introduced by fty::defprod.

Macro: change-ienv

(defmacro change-ienv (x &rest args)
  (std::change-aggregate 'ienv
                         x args
                         '((:uchar-format . ienv->uchar-format)
                           (:schar-format . ienv->schar-format))
                         'change-ienv
                         'nil))