subsref.m

function val = subsref(hash, s)
% Subscripted assignment for object Hashtable
% Subscripted assignment for object dynaload
% overloading subscripted reference for objects
% Dot Notation vs. Function Notation
%
% ex: h = Hashtable('key', value)
% value = h.key
% value = h('key')
% if value is a structure, get field value:
% fvalue = h.key.field
% see help from substruct and subsref
%
% $Id$

switch (length(s))
  case 2
    switch s(1).type
      case '.'
        
        % get object with key 's(1).subs' in hash
        % ---------------------------------------
        val = get(hash, s(1).subs);
        
        % assume that val is a structure
        % ------------------------------
        if isstruct(val)
          val = val.(s(2).subs);
        else
           error('object for key: %s not a valid struct object.', s(2).subs)
        end
      otherwise
        error('Invalid type.')
    end

  case 1
    switch s.type
      case '()'
        if (length(index.subs) ~= 1)
          error('Only single indexing is supported.');
        end
        val = get(hash,s.subs{1});
      case '.'
        val = get(hash,s.subs);
      otherwise
        error('Invalid type.')
    end
end