anchor.diff:  explode(_Context, _Line, {_,Delimiter}, {_,String}, {_,Limit}) ->
       split_limit(Delimiter, String, ?DICT:new(), Limit-1, 0).
   
  +-spec str_replace(context(), line(),
  +    Search :: var_value(), Replace :: var_value(),
  +    Subject :: var_value()) -> binary().
  +
  +str_replace(_Context, _Line, {_, Search}, {_, Replace}, {_, Subject}) ->
  +    binary:replace(Subject, Search, Replace, [global]).
   
   %% ----------------------------------------------------------------------------
   %% Internal functions
  
positive.code:     implode,
      {implode, <<"join">>},
      explode,
      {explode, <<"split">>}
  ]. 
  
  -spec strlen(context(), line(), String :: var_value()) -> integer().
  
negative.code:     implode/3,
      implode/4,
      explode/4,
      explode/5,
      str_replace/5
  ]).
  
  -include("ephp.hrl").
  