# File lib/ruote/util/subprocess.rb, line 35 def self.lookup_subprocess(fexp, ref) val = fexp.lookup_variable(ref) # a classical subprocess stored in a variable ? return [ '0', val ] if is_tree?(val) return val if is_pos_tree?(val) # maybe subprocess :ref => 'uri' subtree = fexp.context.reader.read(ref) rescue nil if subtree && is_definition_tree?(subtree) _, subtree = Ruote::Exp::DefineExpression.reorganize(subtree) end return [ '0', subtree ] if is_tree?(subtree) # no luck ... raise "no subprocess named '#{ref}' found" end