@defvar default-mime-charset
-Symbol to indicate default value of MIME-charset
-(@ref{MIME-charset}).@refill
+Symbol to indicate default value of MIME charset (@ref{MIME charset}).@refill
-It is used when MIME-charset is not specified.@refill
+It is used when MIME charset is not specified.@refill
It is originally variable of APEL.
@end defvar
Encode header fields to network representation, such as MIME
encoded-word.@refill
-It refer variable @code{eword-field-encoding-method-alist}.
+Each field is encoded as corresponding method specified by variable
+@code{eword-field-encoding-method-alist}.
@end defun
+@defvar eword-field-encoding-method-alist
+
+Association list to specify field encoding method. Each element looks
+like (FIELD . METHOD).@refill
+
+If METHOD is @code{mime}, the FIELD will be encoded into MIME format
+(encoded-word).@refill
+
+If METHOD is @code{nil}, the FIELD will not be encoded.@refill
+
+If METHOD is a MIME charset, the FIELD will be encoded as the charset
+when it must be convert into network-code.@refill
+
+Otherwise the FIELD will be encoded as variable
+@code{default-mime-charset} when it must be convert into network-code.
+@end defvar
+
+
@node custom, Appendix, encoded-word, Top
@chapter Various Customization