MMM Mode

MMM Mode is an Emacs add-on package providing a minor mode that allows Multiple Major Modes to coexist in one buffer. It is particularly well-suited to editing embedded code or code that generates other code. It defines a general syntax—the "submode class"—for telling it how one major mode should be embedded in another. The original author of MMM Mode (Michael Shulman) stopped maintaining it a lon

[tarao]

"package providing a minor mode that allows Multiple Major Modes to coexist in one buffer"

[naney]

モードの切り替えを自動的に行ってくれる