ferencd@0: #
ferencd@0: # Class to handle all kind of utilities
ferencd@0: #
ferencd@0: 
ferencd@0: class Utils
ferencd@0: 
ferencd@0:   # Generates a random string from a set of easily readable characters
ferencd@0:   def Utils.random_string(size = 6)
ferencd@0:     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}
ferencd@0:     (0...size).map{ charset.to_a[rand(charset.size)] }.join
ferencd@0:   end
ferencd@0: 
ferencd@0:   # Generates a random string from a set of easily readable characters
ferencd@0:   def Utils.random_hex_string(size = 6)
ferencd@0:     charset = %w{0 1 2 3 4 5 6 7 9 A C D E F}
ferencd@0:     (0...size).map{ charset.to_a[rand(charset.size)] }.join
ferencd@0:   end
ferencd@0: 
ferencd@0:   #
ferencd@0:   # Splits the cells
ferencd@0:   #
ferencd@0:   def Utils.split(text, width)
ferencd@0:     pattern = /
ferencd@0:     (                 # capturing group for split
ferencd@0:       .{#{width-2},}? # at least width-2 characters, but not more than needed
ferencd@0:       \}              # closing curly brace
ferencd@0:       [,\]]           # a comma or a closing bracket
ferencd@0:     )
ferencd@0:     /x                # free spacing mode
ferencd@0:     text.split(pattern).reject(&:empty?).join("\n")
ferencd@0:   end
ferencd@0: 
ferencd@0: end