# File lib/racc/logfilegenerator.rb, line 47 def output_useless(out) used = [] @grammar.each do |rl| if rl.useless? out.printf "rule %d (%s) never reduced\n", rl.ident, rl.target.to_s end end @grammar.each_nonterminal do |t| if t.useless? out.printf "useless nonterminal %s\n", t.to_s end end end