# File lib/ruote/exp/ro_variables.rb, line 55 def lookup_variable(var, prefix=nil) var, prefix = split_prefix(var, prefix) if prefix == '//' return @context.storage.get_engine_variable(var) end if prefix == '/' && par = parent return par.lookup_variable(var, prefix) end if h.variables and Ruote.has_key?(h.variables, var) return Ruote.lookup(h.variables, var) end if h.parent_id && h.parent_id['engine_id'] == @context.engine_id # # do not lookup variables in a remote engine ... (return parent.lookup_variable(var, prefix)) rescue nil # if the lookup fails (parent gone) then rescue and let go end @context.storage.get_engine_variable(var) end