Re: [xml-dev] Self-replicating XML

From
Dimitre Novatchev <>
To
Michael Kay <>
Date
2013-10-16T21:51:43Z
ID
<CAK4KnZeHN=>
Thread
Re: [xml-dev] Self-replicating XML
http://www.mhonarc.org/archive/html/xsl-list/2011-08/msg00074.html


On Wed, Oct 16, 2013 at 2:35 PM, Michael Kay <> wrote:
>
> On 16 Oct 2013, at 21:01, Costello, Roger L. wrote:
>
>> Hi Folks,
>>
>> [Definition]
>>       A quine is a computer program which takes no input
>>       and produces a copy of its own source code as its only
>>       output. The standard terms for these programs in the
>>       computability theory and computer science literature
>>       are self-replicating programs, self-reproducing programs,
>>       and self-copying programs. [1]
>>
>> Below is an XSLT program that is quine.
>
> Not on that definition it isn't. It calls the document() function, so it can't claim to "take no input". A program that copies its input, and is then run on itself, is not an interesting quine.
>
> Michael Kay
> Saxonica
>
>
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-- 
Cheers,
Dimitre Novatchev
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Truly great madness cannot be achieved without significant intelligence.
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biggest mistake of all
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