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Change <active> to avoid generating an empty <span> for empty content
author Adam Chlipala <adam@chlipala.net>
date Mon, 21 Apr 2014 12:09:58 -0400
parents 318ba997a149
children
line wrap: on
line source
fun isNone [a] (x : option a) =
    case x of
        None => True
      | Some _ => False