32 lines
544 B
Ruby
32 lines
544 B
Ruby
require 'digest'
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def prompt(*args)
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print(*args)
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gets.chomp
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end
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WHITESPACE = " \t\u200b\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000"
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def doit(message, regex, limit = 10)
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return unless limit > 0
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digest = Digest::SHA256.hexdigest message
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if regex.match? digest
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p message
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puts digest
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exit 0
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end
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WHITESPACE.each_char do |ws|
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doit(message + ws, regex, limit - 1)
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end
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end
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message = prompt "Message: "
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hash_regex = Regexp.new(prompt "Digest regex: ")
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doit(message, hash_regex)
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puts "i give up :("
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exit 1
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