26 lines
438 B
Ruby
26 lines
438 B
Ruby
# typed: strict
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# frozen_string_literal: true
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class IO
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sig { params(sep: String).returns(String) }
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def readline_nonblock(sep = $INPUT_RECORD_SEPARATOR)
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line = +""
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buffer = +""
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begin
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loop do
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break if buffer == sep
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read_nonblock(1, buffer)
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line.concat(buffer)
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end
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line.freeze
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rescue IO::WaitReadable, EOFError
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raise if line.empty?
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line.freeze
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end
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end
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end
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