--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/utils.rb	Sun Sep 15 11:46:47 2019 +0200
@@ -0,0 +1,33 @@
+#
+# Class to handle all kind of utilities
+#
+
+class Utils
+
+  # Generates a random string from a set of easily readable characters
+  def Utils.random_string(size = 6)
+    charset = %w{0 1 2 3 4 5 6 7 9 A C D E F G H J K M N P Q R T V W X Y Z a b c d e f g h i j k l m n o p q r s t u v w x y z}
+    (0...size).map{ charset.to_a[rand(charset.size)] }.join
+  end
+
+  # Generates a random string from a set of easily readable characters
+  def Utils.random_hex_string(size = 6)
+    charset = %w{0 1 2 3 4 5 6 7 9 A C D E F}
+    (0...size).map{ charset.to_a[rand(charset.size)] }.join
+  end
+
+  #
+  # Splits the cells
+  #
+  def Utils.split(text, width)
+    pattern = /
+    (                 # capturing group for split
+      .{#{width-2},}? # at least width-2 characters, but not more than needed
+      \}              # closing curly brace
+      [,\]]           # a comma or a closing bracket
+    )
+    /x                # free spacing mode
+    text.split(pattern).reject(&:empty?).join("\n")
+  end
+
+end
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