Subject: Re: [xsl] ANN: A brief introduction to streams ... plus a stream library From: ac <ac@xxxxxxxxxxxxx> Date: Sun, 12 Sep 2010 00:14:40 -0400 |
rather than <xsl:variable name="delay"><stream:delay/></xsl:variable>
Thank you, ac
Hi Folks,
Lately I have been digging into streams and am really excited about it. I would like to share what I've learned.
I wrote a short article on streams. Also, I created a simple stream library using XSLT 2.0 so that I (and you) can use it to create stream programs today.
Here are the first few paragraphs of my article:
INTRODUCTION
Streams have the potential to take XML to the next level by facilitating the processing of huge XML documents.
A stream is a sequence of data. For example, a series of bank deposits and withdrawals is a stream. The sequence of integers between 10,000 and 100,000,000 is a stream. There may even be infinite streams.
What distinguishes a stream from an ordinary sequence is delayed evaluation. The idea is this: construct a stream only partially and pass the partial construction to the program that consumes the stream. If the consumer attempts to access a part of the stream that has not yet been constructed, the stream will automatically construct just enough more to produce the required part, thus preserving the illusion that the entire stream exists.
More ...http://www.xfront.com/stream/streams.pdf
/Roger
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