An experimental Emacs minor mode to highlight parentheses in Gauche codes based on their meaning.
Gauche 0.9.4 + some patch.
Copy gauche-paren-type.el to a directory in your *load-path*,
and dump-call-type.el to a directory in your PATH.
(require 'gauche-paren-type) in Emacs and type M-x gauche-paren-type
in a buffer visiting *.scm file.