https://github.com/syohex/emacs-mruby-test

Emacs with mruby
https://github.com/syohex/emacs-mruby-test

Last synced: about 2 months ago
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Emacs with mruby

• Host: GitHub
• URL: https://github.com/syohex/emacs-mruby-test
• Owner: syohex
• License: gpl-3.0
• Created: 2015-12-06T14:45:51.000Z (about 9 years ago)
• Default Branch: master
• Last Pushed: 2016-02-20T05:51:40.000Z (almost 9 years ago)
• Last Synced: 2024-10-28T00:24:02.394Z (2 months ago)
• Language: C
• Size: 20.5 KB
• Stars: 29
• Watchers: 4
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: COPYING

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README

        
# mruby.el

**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.

## Setup

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

### Build Emacs

```

% 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

```

### Building this plugin

```

% cd modules

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

% make

```

## Evaluate mruby code

```lisp

(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"]

```

## Call mruby function for elisp objects

``` lisp

;; 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]

```

## License

- This software is released under the GPLv3+.

- mruby is released under the [MIT License](https://github.com/mruby/mruby/blob/master/MITL).