+(defun notmuch-pick-format-field-list (field-list msg)
+ "Format fields of MSG according to FIELD-LIST and return string"
+ (let (result-string)
+ (dolist (spec field-list result-string)
+ (let ((field-string (notmuch-pick-format-field (car spec) (cdr spec) msg)))
+ (setq result-string (concat result-string field-string))))))
+