nmrb

nmrb is mruby binding library for Microsoft .NET framework 4.6.

About mruby: https://github.com/mruby/mruby/blob/master/README.md

Examples

// Make MrbState object.
using (var mrb = new nmrb.State()) {

   // Ruby script
   var src = @"
     def hello(n)
       puts 'hello!' * n
     end
     # call the method
     hello 3
   ";
   // Execute
   mrb.Do(src);

   // Returns value
   Value value = mrb.Do("123");
   int result = (value as FixnumValue).ToInteger();
   
   // Callback C# function from Ruby environment
   mrb.DefineCliMethod("clifunc", (args) => {
     if (args.Length > 0 && args.First().IsString()) {
       string message = args.First().ToString();
       var button = MessageBox.Show(message, "mruby", MessageBoxButtons.OKCancel);
       if (button == DialogResult.OK) {
         return new TrueValue(mrb);
       }
       return new FalseValue(mrb);
     }
     return new NilValue(mrb);
   });
   mrb.Do("clifunc 'こんにちは、世界。'");
   
}

Target platform

• IA32 compatible 32bit processor.
• Win32
• Microsoft .NET Framework 4.6.1 (No tested with .NET Core)

How to call from C# app

1. Add Reference DLL file named nmrb.dll to your C# project.

2. Add following line to source code.

   using nmrb;

3. Make MrbState object.

   var mrb = new MrbState();

4. Call Do function with Ruby script string.

   mrb.Do("puts 'happy mruby life!'");

You can get more infomation at Github project page.

How to build nmrb.dll

Requirements

• Microsoft Windows 7 or later
• Microsoft Visual Studio 2015 (vs14)
• mruby
  • Ruby
  • Git
  • Bison and Flex

Process

git clone --recursive git@github.com:dyama/nmrb.git
cd nmrb
build_mruby_vs14.bat
devenv.exe nmrb.sln

Note

• Callback mapper object is static. It means that do not guarantee independence between multiple nmrb.State objects.
• DefineCliMethod supports to add a method to Kernel module only.

Demo project

See https://github.com/dyama/nmrb/tree/master/example1

License

MIT License

Author

dyama (Daisuke YAMAGUCHI) dyama@member.fsf.org