method

capture

Ruby on Rails latest stable (v3.2.13) - 0 notes - Class: Kernel

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What's this?

capture(stream) public

Captures the given stream and returns it:

stream = capture(:stdout) { puts "Cool" }
stream # => "Cool\n"

Show source

# File activesupport/lib/active_support/core_ext/kernel/reporting.rb, line 70
  def capture(stream)
    begin
      stream = stream.to_s
      eval "$#{stream} = StringIO.new"
      yield
      result = eval("$#{stream}").string
    ensure
      eval("$#{stream} = #{stream.upcase}")
    end

    result
  end

capture

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