+@defvar eword-field-encoding-method-alist
+
+Field \e$B$rId9f2=$9$kJ}K!$r;XDj$9$kO"A[\e(B list\e$B!#3F\e(B element \e$B$O\e(B (FIELD
+. METHOD) \e$B$NMM$K$J$C$F$$$k!#\e(B@refill
+
+METHOD \e$B$,\e(B @code{mime} \e$B$G$"$l$P!"\e(BFIELD \e$B$O\e(B MIME format \e$B$KId9f2=$5\e(B
+\e$B$l$k\e(B (encoded-word)\e$B!#\e(B
+
+METHOD \e$B$,\e(B @code{nil} \e$B$G$"$l$P!"\e(BFIELD \e$B$OId9f2=$5$l$J$$!#\e(B
+
+METHOD \e$B$,\e(B MIME charset \e$B$G$"$l$P!"\e(BFIELD \e$B$O%M%C%H%o!<%/%3!<%I$KJQ49$7$J\e(B
+\e$B$1$l$P$J$i$J$$$H$-$K\e(B charset \e$B$KId9f2=$5$l$k!#\e(B@refill
+
+\e$B$=$&$G$J$1$l$P!"\e(BFIELD \e$B$O%M%C%H%o!<%/%3!<%I$KJQ49$7$J$1$l$P$J$i$J$$$H$-\e(B
+\e$B$K\e(B \e$BJQ?t\e(B @code{default-mime-charset} \e$B$GId9f2=$5$l$k\e(B
+@end defvar
+
+