From 2b7e3aa00afebe454bea26f54d31847e178c3c33 Mon Sep 17 00:00:00 2001
From: Alex Kost <alezost@gmail.com>
Date: Wed, 16 Sep 2015 21:34:24 +0300
Subject: [PATCH] Add 'geiser-syntax--simple-keywords'

Use this function instead of repeating the same code in each
implementation.
---
 elisp/geiser-chicken.el | 2 +-
 elisp/geiser-guile.el   | 4 +---
 elisp/geiser-racket.el  | 5 +----
 elisp/geiser-syntax.el  | 6 ++++++
 4 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/elisp/geiser-chicken.el b/elisp/geiser-chicken.el
index c086b17..135d345 100644
--- a/elisp/geiser-chicken.el
+++ b/elisp/geiser-chicken.el
@@ -207,7 +207,7 @@ This function uses `geiser-chicken-init-file' if it exists."
 ;;; Keywords and syntax
 
 (defun geiser-chicken--keywords ()
-  `((,(format "[[(]%s\\>" (regexp-opt geiser-chicken-builtin-keywords 1)) . 1)))
+  (geiser-syntax--simple-keywords geiser-chicken-builtin-keywords))
 
 (geiser-syntax--scheme-indent
  (receive 2)
diff --git a/elisp/geiser-guile.el b/elisp/geiser-guile.el
index e8eb11a..941fe81 100644
--- a/elisp/geiser-guile.el
+++ b/elisp/geiser-guile.el
@@ -247,9 +247,7 @@ This function uses `geiser-guile-init-file' if it exists."
 
 (defun geiser-guile--keywords ()
   (append
-   (when geiser-guile-extra-keywords
-     `((,(format "[[(]%s\\>" (regexp-opt geiser-guile-extra-keywords 1))
-         . 1)))
+   (geiser-syntax--simple-keywords geiser-guile-extra-keywords)
    `((,(rx "(" (group "define-once") eow (* space) (? (group (+ word))))
        (1 font-lock-keyword-face)
        (2 font-lock-variable-name-face nil t))
diff --git a/elisp/geiser-racket.el b/elisp/geiser-racket.el
index 6a849e3..23c6083 100644
--- a/elisp/geiser-racket.el
+++ b/elisp/geiser-racket.el
@@ -272,10 +272,7 @@ using start-geiser, a procedure in the geiser/server module."
 
 (defun geiser-racket--keywords ()
   (append geiser-racket-font-lock-forms
-          (when geiser-racket-extra-keywords
-            `((,(format "[[(]%s\\>"
-                        (regexp-opt geiser-racket-extra-keywords 1))
-               . 1)))))
+          (geiser-syntax--simple-keywords geiser-racket-extra-keywords)))
 
 (geiser-syntax--scheme-indent
  (begin0 1)
diff --git a/elisp/geiser-syntax.el b/elisp/geiser-syntax.el
index 9557f5e..bc110d9 100644
--- a/elisp/geiser-syntax.el
+++ b/elisp/geiser-syntax.el
@@ -60,6 +60,12 @@
       (2 font-lock-function-name-face nil t))
     (,(rx "(" (group "when") eow) . 1)))
 
+(defun geiser-syntax--simple-keywords (keywords)
+  "Return `font-lock-keywords' to highlight scheme KEYWORDS.
+KEYWORDS should be a list of strings."
+  (when keywords
+    `((,(format "[[(]%s\\>" (regexp-opt keywords 1)) . 1))))
+
 (font-lock-add-keywords 'scheme-mode geiser-syntax--keywords)
 
 (geiser-impl--define-caller geiser-syntax--impl-kws keywords ()
-- 
2.11.4.GIT