Hello,

I want to unshift chunk back on the source to reparse it later on.

Unfortunately this has brought me to following trap (I hope I have analyzed 
it correct):

1. source emits "readable" 
2. A listener calls next.read(0) to start reading
3. next._read() calls "source.unshift(chunk)"
4. because source is currently freeing its buffer it does not emit 
"readable"
5. without a new "readable" next does not parse anything again until we 
manually call "next.read(0)" again

Here is a gist which describes 
this: https://gist.github.com/bodokaiser/5280367

What else could I do to push back chunk I want to parse on the next "_read"?

Bodo

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