diff --git a/format-region.el b/format-region.el
index e3c7a90..bc5795f 100644
--- a/format-region.el
+++ b/format-region.el
@@ -1,4 +1,4 @@
-;;; format-region.el --- Transform region in different formats: camelCase, kebab-case or lisp-case, PascalCase and snake_case. -*- lexical-binding: t;
+;;; format-region.el --- Transform region. -*- lexical-binding: t;
 ;;
 ;; Copyright © 2023 Andros Fenollosa
 ;; Authors: Andros Fenollosa <andros@fenollosa.email>
@@ -11,8 +11,7 @@
 
 ;;; Code:
 
-
-(defun to-format (sentence separator is-first-word-capitalized is-all-words-capitalized)
+(defun format-region-to-format (sentence separator is-first-word-capitalized is-all-words-capitalized)
   "Convert SENTENCE to format.
 SEPARATOR is the character that will separate the words.
 IS-FIRST-WORD-CAPITALIZED is a boolean that indicates if the first word should be capitalized.
@@ -26,17 +25,17 @@ IS-ALL-WORDS-CAPITALIZED is a boolean that indicates if all words should be capi
     sentence-with-first-word-capitalized))
 
 
-(defmacro curried-format (separator is-first-word-capitalized is-all-words-capitalized)
+(defmacro format-region-curried (separator is-first-word-capitalized is-all-words-capitalized)
   "Curry the function to-format with SEPARATOR, IS-FIRST-WORD-CAPITALIZED and IS-ALL-WORDS-CAPITALIZED."
-  `(lambda (sentence) (to-format sentence ,separator ,is-first-word-capitalized ,is-all-words-capitalized)))
+  `(lambda (sentence) (format-region-to-format sentence ,separator ,is-first-word-capitalized ,is-all-words-capitalized)))
 
 ;; Define functions
-(setq to-camel-case (curried-format nil nil t)) ; camelCase
-(setq to-kebab-case (curried-format "-" nil nil)) ; kebab-case or lisp-case
-(setq to-pascal-case (curried-format nil t t)) ; PascalCase
-(setq to-snake-case (curried-format "_" nil nil)) ; snake_case
+(setq format-region-to-format-camel-case (format-region-curried nil nil t)) ; camelCase
+(setq format-region-to-format-kebab-case (format-region-curried "-" nil nil)) ; kebab-case or lisp-case
+(setq format-region-to-format-pascal-case (format-region-curried nil t t)) ; PascalCase
+(setq format-region-to-format-snake-case (format-region-curried "_" nil nil)) ; snake_case
 
-(defun format-region (fn-format)
+(defun format-region-selected (fn-format)
   "Format the selected region with FN-FORMAT."
   (interactive)
   (let ((text (buffer-substring-no-properties (region-beginning) (region-end))))
@@ -45,29 +44,43 @@ IS-ALL-WORDS-CAPITALIZED is a boolean that indicates if all words should be capi
 
 ;; Interactive functions
 
-(defun format-to-camel-case-region ()
+(defun format-region-to-camel-case ()
   "Convert the selected text to camelCase."
   (interactive)
-  (format-region to-camel-case))
+  (format-region-selected format-region-to-format-camel-case))
 
-(defun format-to-kebab-case-region ()
+(defun format-region-to-kebab-case ()
   "Convert the selected text to kebab-case or lisp-case."
   (interactive)
-  (format-region to-kebab-case))
+  (format-region-selected format-region-to-format-kebab-case))
 
-(defun format-to-lisp-case-region ()
+(defun format-region-to-lisp-case ()
   "Convert the selected text to kebab-case or lisp-case."
   (interactive)
-  (format-region to-kebab-case))
+  (format-region-selected format-region-to-format-kebab-case))
 
-(defun format-to-pascal-case-region ()
+(defun format-region-to-pascal-case ()
   "Convert the selected text to PascalCase."
   (interactive)
-  (format-region to-pascal-case))
+  (format-region-selected format-region-to-format-pascal-case))
 
-(defun format-to-snake-case-region ()
+(defun format-region-to-snake-case ()
   "Convert the selected text to snake_case."
   (interactive)
-  (format-region to-snake-case))
+  (format-region-selected format-region-to-format-snake-case))
+
+;; Tests
+(defun format-region-debug ()
+  "Check if all functions work correctly. Print OK if so."
+  (let (
+	(is-camel-case-ok (string= (funcall format-region-to-format-camel-case "hello world") "helloWorld"))
+	(is-kebab-case-ok (string= (funcall format-region-to-format-kebab-case "hello world") "hello-world"))
+	(is-pascal-case-ok (string= (funcall format-region-to-format-pascal-case "hello world") "HelloWorld"))
+	(is-snake-case-ok (string= (funcall format-region-to-format-snake-case "hello world") "hello_world")))
+    (if (and is-camel-case-ok is-kebab-case-ok is-pascal-case-ok is-snake-case-ok)
+	(message "OK")
+      (message "ERROR"))))
+
+(provide 'format-region)
 
 ;;; format-region.el ends here