riece-current-channel))
(error "Channel %s is not displayed"
(riece-identity-prefix riece-current-channel)))
+ (when (text-property-not-all
+ (riece-line-beginning-position) (riece-line-end-position)
+ 'invisible nil)
+ (error "Invisible text included: %s"
+ (buffer-substring-no-properties
+ (riece-line-beginning-position)
+ (riece-line-end-position))))
(when executing-kbd-macro
(error "%s" "Forbidden to run keyboard macro"))))