class Fop::Program
Public Class Methods
new(instructions)
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# File lib/fop/program.rb, line 3 def initialize(instructions) @instructions = instructions end
Public Instance Methods
apply(input)
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# File lib/fop/program.rb, line 7 def apply(input) input = input.clone output = @instructions.reduce("") { |acc, ins| result = ins.call(input) return nil if result.nil? acc + result.to_s } input.empty? ? output : nil end