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Showing content from https://github.com/syohex/emacs-mruby-test below:

GitHub - syohex/emacs-mruby-test: Emacs with mruby

This is a test package of dynamic module feature which is implemented in Emacs 25.

mruby.el provides interface to mruby make interface to embed mruby into go.

Dynamic module feature is implemented only in emacs-25 branch. So you need to build Emacs which enables dynamic module feature.

% git clone git://git.savannah.gnu.org/emacs.git
% cd emacs
% git checkout -b emacs-25 origin/emacs-25
% ./configure --with-modules --prefix=installed_path # You must set --with-modules
% make
% make install

% cd modules
% git clone --recursive https://github.com/syohex/emacs-mruby-test.git
% make

(let ((mrb (mruby-init)))
  (mruby-eval mrb "ARGV.map {|x| x + 1}" 1 2 3))
;; => [2 3 4]


(let ((mrb (mruby-init)))
  (mruby-eval mrb
              "
def fizzbuzz(num)
  (1..num).map do |n|
    case
    when n % 15 == 0 then \"fizzbuzz\"
    when n % 5  == 0 then \"buzz\"
    when n % 3  == 0 then \"fizz\"
    else n
    end
  end
end

fizzbuzz(ARGV[0].to_i)
" 20))

;; => [1 2 "fizz" 4 "buzz" "fizz" 7 8 "fizz" "buzz" 11 "fizz" 13 14 "fizzbuzz" 16 17 "fizz" 19 "buzz"]

;; Apply 'Fixnum#abs' for Emacs Lisp integer value
(let ((mrb (mruby-init)))
  (mruby-send mrb -10 'abs))
;; 10

;; Apply 'String#swapcase' for Emacs Lisp string value
(let ((mrb (mruby-init)))
  (mruby-send mrb "hello WORLD" 'swapcase))
;; => "HELLO world"

;; Apply 'Array#flatten' for Emacs Lisp vector value
;; [NOTE] You must use vector instead of list for Ruby Array feature
(let ((mrb (mruby-init)))
  (mruby-send mrb [1 [2 3] [4 [5 6]]] 'flatten))
;; => '[1 2 3 4 5 6]

• This software is released under the GPLv3+.
• mruby is released under the MIT License.

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