Class: Amberletters::TranscriptHistoryBuffer

Inherits:
Object
  • Object
show all
Defined in:
lib/amberletters.rb

Overview

This class offers a pass-through << operator and saves the most recent 256 bytes which have passed through.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(transcript) ⇒ TranscriptHistoryBuffer

Returns a new instance of TranscriptHistoryBuffer.



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# File 'lib/amberletters.rb', line 43

def initialize(transcript)
  @buffer     = String.new
  @transcript = transcript
end

Instance Attribute Details

#buffer ⇒ Object (readonly)

Returns the value of attribute buffer.



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# File 'lib/amberletters.rb', line 41

def buffer
  @buffer
end

Instance Method Details

#<<(output) ⇒ Object 



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# File 'lib/amberletters.rb', line 48

def <<(output)
  @buffer     << output
  @transcript << output
  length = [@buffer.length, 512].min
  @buffer = @buffer[-length, length]
  self
end