From 9a702b528c540be93d504d3823116834c6dd49a6 Mon Sep 17 00:00:00 2001
From: Martin Edenhofer <me@edenhofer.de>
Date: Wed, 16 Dec 2015 22:47:10 +0100
Subject: [PATCH] Code cleanup, improved String.to_filename.

---
 lib/application_lib.rb | 6 +++---
 lib/core_ext/string.rb | 5 ++++-
 2 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/lib/application_lib.rb b/lib/application_lib.rb
index a9fa4255f..a5e94864f 100644
--- a/lib/application_lib.rb
+++ b/lib/application_lib.rb
@@ -9,7 +9,7 @@ module ApplicationLib
 
 load adapter based on setting option
 
-  result = self.load_adapter_by_setting( 'some_setting_with_class_name' )
+  result = self.load_adapter_by_setting('some_setting_with_class_name')
 
 returns
 
@@ -18,7 +18,7 @@ returns
 =end
 
     def load_adapter_by_setting(setting)
-      adapter = Setting.get( setting )
+      adapter = Setting.get(setting)
       return if !adapter
 
       # load backend
@@ -29,7 +29,7 @@ returns
 
 load adapter
 
-  result = self.load_adapter( 'Some::Classname' )
+  result = self.load_adapter('Some::Classname')
 
 returns
 
diff --git a/lib/core_ext/string.rb b/lib/core_ext/string.rb
index 049e88e6c..b060d80bb 100644
--- a/lib/core_ext/string.rb
+++ b/lib/core_ext/string.rb
@@ -32,7 +32,10 @@ class String
 
   def to_filename
     camel_cased_word = "#{self}"
-    camel_cased_word.gsub(/::/, '/').downcase
+    camel_cased_word.gsub(/::/, '/')
+      .gsub(/([A-Z]+)([A-Z][a-z])/, '\1_\2')
+      .gsub(/([a-z\d])([A-Z])/, '\1_\2')
+      .tr('-', '_').downcase
   end
 
 =begin