anchor.diff:  match against. For example, the host 127.0.0.1 would match on
   http://127.0.0.1:9990/my/path .
   
  -|match-no-userinfo |Matches against URIs with no userinfo.
  +|match-no-user |Matches against URIs with no user.
   
   |match-path |Takes a single name attribute specifying the path to match
   against. For example, the path /my/path/ would match on
  
positive.code: |match-urn |Takes a single name attribute specifying the URN to match
  against.
  
  |match-userinfo |Takes a single name attribute specifying the userinfo
  to match against.
  |=======================================================================
  
  
negative.code: |matchUrnName(String name) |This is the same as match-urn in the
  configuration file approach.
  
  |matchUser(String userSpec) |This is the same as match-user in the
  configuration file approach.
  |=======================================================================
  
  