class LearnLab::Prompt
Special prompt that keeps asking for input until it is valid.
Attributes
output[R]
Public Class Methods
new(output=$stdout)
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# File lib/learn_lab/prompt.rb, line 9 def initialize(output=$stdout) @output = output end
Public Instance Methods
ask(question, &block)
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# File lib/learn_lab/prompt.rb, line 13 def ask(question, &block) input_is_valid = false until input_is_valid output.print("\n#{question} > ") answer = $stdin.gets.chomp input_is_valid = block_given? ? block.call(answer) : true end answer end