/decimalize.rb
Created Jul 17, 2014
convert a mixed number string to a decimal in Ruby
| def decimalize(string) | |
| return 0.0 if string.nil? || string.empty? | |
| string.gsub!(/[^\d\s\/]/, "") | |
| fraction, numeral = string.split.reverse | |
| fraction ||= '0/1' | |
| numeral.to_i + Rational(fraction).to_f | |
| end | |
| # decimalize('1 1/2') => 1.5 | |
| # decimalize('2 3/4 inches') => 2.75 | |
| # decimalize('3 11/8') => 4.375 | |
| # decimalize('') => 0.0 | |
| # decimalize(nil) => 0.0 |
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