detect-coding-with-priority
detect-coding-with-priority is an autoloaded Lisp macro in `mule-util.el
'.
(detect-coding-with-priority FROM TO PRIORITY-LIST)
This macro is obsolete since 23.1;
use `with-coding-priority' instead.
Detect a coding system of the text between FROM and TO with PRIORITY-LIST.
PRIORITY-LIST is an alist of coding categories vs the corresponding
coding systems ordered by priority.