Ruby JSON parser source code?

I know there is a JSON gem out there for easily using JSON in Ruby.

My reasons for the following weird situation are rather messy, so I will just tell you my problem:

I got the JSON gem installed (bunch of folders like "pure" "add" and files with formats "rb" "XPM"). And I got a Ruby "editor" open.

What I need is to "copy & paste" all the "code" that basically lets me run JSON into my editor. Like if I had written all the JSON code manually in my plain editor.

I assumed that I should just open every file f开发者_如何转开发rom the JSON folder and copy the contents to my editor. But I am not sure about the "XPM" files...

Now, the reason I have this extremely weird scenario (instead of actually using a gem or other easier methods), is rather special. So let's just focus on this little weird situation, thanks ;D.