[纪秀峰]:add fun  helm-etags+-select-internal
if you want call helm-etags in your special function
you can do it like this
(condition-case nil
    (helm-etags+-select-internal   (concat "\\_<" "helm-etags+-dddselect-internal" "\\_>"))
  (error (message "do something when no candidates found")))

受影响的文件:
    helm-etags+.el