- (with-temp-buffer
- (ietf-drums-init string)
- (let ((beg (point))
- pairs c)
- (while (not (eobp))
- (setq c (char-after))
- (cond
- ((memq c '(?\" ?< ?\())
- (forward-sexp 1))
- ((eq c ?,)
- (push (ietf-drums-parse-address (buffer-substring beg (point)))
- pairs)
- (forward-char 1)
- (setq beg (point)))
- (t
- (forward-char 1))))
- (push (ietf-drums-parse-address (buffer-substring beg (point)))
- pairs)
- (nreverse pairs))))
+ (if (null string)
+ nil
+ (with-temp-buffer
+ (ietf-drums-init string)
+ (let ((beg (point))
+ pairs c address)
+ (while (not (eobp))
+ (setq c (char-after))
+ (cond
+ ((memq c '(?\" ?< ?\())
+ (condition-case nil
+ (forward-sexp 1)
+ (error
+ (skip-chars-forward "^,"))))
+ ((eq c ?,)
+ (setq address
+ (condition-case nil
+ (ietf-drums-parse-address
+ (buffer-substring beg (point)))
+ (error nil)))
+ (if address (push address pairs))
+ (forward-char 1)
+ (setq beg (point)))
+ (t
+ (forward-char 1))))
+ (setq address
+ (condition-case nil
+ (ietf-drums-parse-address
+ (buffer-substring beg (point)))
+ (error nil)))
+ (if address (push address pairs))
+ (nreverse pairs)))))