language lawyer

language lawyer n.  A person, usually an experienced or
   senior software engineer, who is intimately familiar with many or
   most of the numerous restrictions and features (both useful and
   esoteric) applicable to one or more computer programming languages.
   A language lawyer is distinguished by the ability to show you the
   five sentences scattered through a 200-plus-page manual that
   together imply the answer to your question "if only you had
   thought to look there".  Compare {wizard}, {legal},
   {legalese}.