[1 2 "fizz" 4 "buzz" "fizz" 7 8 "fizz" "buzz" 11 "fizz" 13 14 "fizzbuzz" 16 17 "fizz" 19 "buzz"] (let ((mrb (mruby-init))) (mruby-send mrb -10 'abs)) ;; => 10 (let ((mrb (mruby-init))) (mruby-send mrb "hello WORLD" 'swapcase)) ;; => "HELLO world" (let ((mrb (mruby-init))) (mruby-send mrb [1 [2 3] [4 [5 6]]] 'flatten)) ;; => [1 2 3 4 5 6] 仕組み Emacs 25で実装予定の Dynamic module機能を使って実現しています(なので実際のところ, 組み