Method: AnswersHelper.free_indicator_of

Defined in:
lib/util/answers_helper.rb

.free_indicator_of(answer, opts = {}) ⇒ Object

Gets first free indicator for ‘answer` which isn’t used by ‘used_indicators`.



27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
 
# File 'lib/util/answers_helper.rb', line 27

def self.free_indicator_of answer, opts={}
  opts = {:used_indicators => []}.merge(opts)
  used_indicators = opts[:used_indicators]

  first_chars = 1
  loop do
    indicator = answer.indicator(first_chars)
    if used_indicators.include? indicator
      first_chars += 1
      redo # next try
    else
      return indicator
    end
  end
end