Lisp mode has a `prettify-symbols-alist' for prettifying lambda as λ.
`prettify-symbols-alist'.
From 9ee4a43831830d3bb420453cb3082568122e9190 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Simen=20Heggest=C3=B8yl?= <simenheg@gmail.com>
Date: Sun, 11 Oct 2015 10:29:36 +0200
Subject: [PATCH] Use pretty symbols from Lisp mode in Scheme mode
* lisp/progmodes/scheme.el (scheme-mode-variables): Borrow
`prettify-symbols-alist' from Lisp mode.
---
lisp/progmodes/scheme.el | 1 +
1 file changed, 1 insertion(+)
diff --git a/lisp/progmodes/scheme.el b/lisp/progmodes/scheme.el
index e921e84..549f09b 100644
--- a/lisp/progmodes/scheme.el
+++ b/lisp/progmodes/scheme.el
@@ -156,6 +156,7 @@
nil t (("+-*/.<>=!?$%_&~^:" . "w") (?#. "w 14"))
beginning-of-defun
(font-lock-mark-block-function . mark-defun)))
+ (setq-local prettify-symbols-alist lisp--prettify-symbols-alist)
(setq-local lisp-doc-string-elt-property 'scheme-doc-string-elt))
(defvar scheme-mode-line-process "")
--
2.6.1