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• Xdoc::apt-constructors

Xdoc::desc-apt-input-old-if-new-enable

Build a description of the :old-if-new-enable input for the user documentation of an APT transformation.

Macro: desc-apt-input-old-if-new-enable

(defmacro xdoc::desc-apt-input-old-if-new-enable nil
 '(xdoc::desc
   "@(':old-if-new-enable') —
     default from <see topic='@(url defaults-table)'>table</see>"
   (xdoc::p
       "Determines whether the @('old-if-new') theorem is enabled.")
   (xdoc::p "It must be one of the following:")
   (xdoc::ul
    (xdoc::li "@('t'), to enable the theorem.")
    (xdoc::li "@('nil'), to disable the theorem.")
    (xdoc::li
     "Absent, to use the value from the APT defaults table,
       which is set via @(tsee set-default-input-old-if-new-enable)."))
   (xdoc::p
    "If this input is @('t'),
      the @(':new-to-old-enable') input must be @('nil').
      At most one of these two inputs may be @('t') at any time.")))