lib/kumogata/ext/string_ext.rb in kumogata-0.2.6 vs lib/kumogata/ext/string_ext.rb in kumogata-0.2.7

@@ -28,11 +28,16 @@
   def encode64
     Base64.encode64(self).delete("\n")
   end
 
   def undent
-    min_space_num = self.split("\n").delete_if{|s| s=~ /^\s*$/ }.map{|s| s[/^\s+/].length }.min
-    gsub(/^[ \t]{,#{min_space_num}}/, '')
+    min_space_num = self.split("\n").delete_if {|s| s =~ /^\s*$/ }.map {|s| (s[/^\s+/] || '').length }.min
+
+    if min_space_num and min_space_num > 0
+      gsub(/^[ \t]{,#{min_space_num}}/, '')
+    else
+      self
+    end
   end
 
   def fn_join(options = {})
     options = {
       :undent    => true,