yasnippet.org

Yasnippet Cheatsheat

Embedding elisp inside yasnippets

Make a yasnippet expand around selected text.

# -*- mode: snippet -*-
# name: <example
# key: <example
# --
 `(if (region-active-p)
 (concat "#+BEGIN_EXAMPLE\n" yas-selected-text "#+END_EXAMPLE") )
 (concat "#+BEGIN_EXAMPLE\n$0\n#+END_EXAMPLE" )`