(eword-encode-default-start-column): New user option.

(eword-encode-string): Use `eword-encode-default-start-column'.
(eword-encode-address-list): Likewise.
(eword-encode-structured-field-body): Likewise.
(eword-encode-unstructured-field-body): Likewise.

diff --git a/eword-encode.el b/eword-encode.el
index 2c7017d..7b2c1b9 100644 (file)
--- a/eword-encode.el
+++ b/eword-encode.el
@@ -533,35 +533,43 @@ MODE is allows `text', `comment', `phrase' or nil.  Default value is
 ;;; @ application interfaces
 ;;;
 
+(defcustom eword-encode-default-start-column 10
+  "Default start column if it is omitted."
+  :group 'eword-encode
+  :type 'integer)
+
 (defun eword-encode-string (string &optional column mode)
   "Encode STRING as encoded-words, and return the result.
 Optional argument COLUMN is start-position of the field.
 Optional argument MODE allows `text', `comment', `phrase' or nil.
 Default value is `phrase'."
-  (car (eword-encode-rword-list (or column 0)
-                               (eword-encode-split-string string mode))))
+  (car (eword-encode-rword-list
+       (or column eword-encode-default-start-column)
+       (eword-encode-split-string string mode))))
 
 (defun eword-encode-address-list (string &optional column)
   "Encode header field STRING as list of address, and return the result.
 Optional argument COLUMN is start-position of the field."
-  (car (eword-encode-rword-list (or column 0)
-                               (eword-encode-addresses-to-rword-list
-                                (std11-parse-addresses-string string))
-                               )))
+  (car (eword-encode-rword-list
+       (or column eword-encode-default-start-column)
+       (eword-encode-addresses-to-rword-list
+        (std11-parse-addresses-string string))
+       )))
 
 (defun eword-encode-structured-field-body (string &optional column)
   "Encode header field STRING as structured field, and return the result.
 Optional argument COLUMN is start-position of the field."
   (car (eword-encode-rword-list
-       (or column 0)
+       (or column eword-encode-default-start-column)
        (eword-encode-addr-seq-to-rword-list (std11-lexical-analyze string))
        )))
 
 (defun eword-encode-unstructured-field-body (string &optional column)
   "Encode header field STRING as unstructured field, and return the result.
 Optional argument COLUMN is start-position of the field."
-  (car (eword-encode-rword-list (or column 0)
-                               (eword-encode-split-string string 'text))))
+  (car (eword-encode-rword-list
+       (or column eword-encode-default-start-column)
+       (eword-encode-split-string string 'text))))
 
 (defun eword-encode-field (string)
   "Encode header field STRING, and return the result.