Module: Lab42::Stream::Utility

Included in:
Lab42::Stream
Defined in:
lib/lab42/stream/utility.rb

Instance Method Summary collapse

Instance Method Details

#__segment__(beh) ⇒ Object 



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# File 'lib/lab42/stream/utility.rb', line 9

def __segment__ beh
  if beh.( head )
    cons_stream( cons_stream( head ){  tail.lazy_take_until beh } ){
      tail.drop_until( beh ).__segment__ beh
    }
  else
    cons_stream( lazy_take_until beh ){
      tail.drop_until( beh ).__segment__ beh
    }
  end
end

#segment(*args, &blk) ⇒ Object 



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# File 'lib/lab42/stream/utility.rb', line 5

def segment *args, &blk
  __segment__ blk.make_behavior( *args )
end

#with_index(start = 0) ⇒ Object 



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# File 'lib/lab42/stream/utility.rb', line 21

def with_index start=0
  zip_as_ary iterate( start, :succ )
end