- From: Chris Maloney <voldrani@gmail.com>
- Date: Fri, 12 Aug 2011 10:34:52 -0400
- To: vojtech.toman@emc.com
- Cc: xproc-dev@w3.org
For my money, there's something that's not quite as aesthetically pleasing about these types of quines that invoke a system call to read and print out the source document. It seems like cheating. For those not on the xsl-list, he did an XSLT quine, too: http://www.biglist.com/lists/lists.mulberrytech.com/xsl-list/archives/201108/msg00073.html Chris Maloney On Fri, Aug 12, 2011 at 8:25 AM, <vojtech.toman@emc.com> wrote: > It works because relative URIs in p:document/@href (but also in other > places) are resolved against the base URI of the containing element – which > in this case is equal to the base URI of the entire pipeline document > (because nor the p:document nor any of its ancestors specify a different > base URI). Therefore the p:document “returns” the pipeline document. > > > > I would say this is a fairly expected behavior. Similar things happen also > in other contexts where you need to work with relative URIs (XSLT, XQuery, > …) > > > > The wrinkle I was talking about is that in order to run Florent’s pipeline, > you need to provide it with an input document or you get a dynamic error > (because the implicit “source” input port of p:pipeline is a non-sequence > port). My original pipeline didn’t have an input port at all, so you don’t > have to pass any document to it. But is it is all just a very minor thing. > > > > Regards, > > Vojtech > > > > -- > > Vojtech Toman > > Consultant Software Engineer > > EMC | Information Intelligence Group > > vojtech.toman@emc.com > > http://developer.emc.com/xmltech > > > > From: Alex Muir [mailto:alex.g.muir@gmail.com] > Sent: Friday, August 12, 2011 2:13 PM > To: Toman, Vojtech > Cc: xproc-dev@w3.org > Subject: Re: The XProc Quine > > > > Vojtech, > > That's interesting why does an empty href <p:document href=""/> load the > document itself? > > Is that a common feature across other tools? > > Florents example seems to work when I run it.. I don't understand the > wrinkle but port law always confuses me so no surprise. > > Alex > > On Fri, Aug 12, 2011 at 9:20 AM, <vojtech.toman@emc.com> wrote: > >> Excellent. By using the appropriate shortcuts, we can even >> reduce it further: >> >> <p:pipeline xmlns:p="http://www.w3.org/ns/xproc" version="1.0"> >> <p:identity> >> <p:input port="source"><p:document href=""/></p:input> >> </p:identity> >> </p:pipeline> >> > > Yes, except for the small wrinkle that in order to run this pipeline, you > would have to provide some input to its "source" input port. > > Regards, > Vojtech > > > -- > Vojtech Toman > Consultant Software Engineer > EMC | Information Intelligence Group > vojtech.toman@emc.com > http://developer.emc.com/xmltech > > > > > -- > > Alex Muir > Instructor | Program Organizer - University Technology Student Work > Experience Building > University of the Gambia > http://sites.utg.edu.gm/alex/ > > Low budget software development benefiting development in the Gambia, West > Africa > Experience of a lifetime, come to Gambia and Join UTSWEB - > http://sites.utg.edu.gm/utsweb/ > >
Received on Friday, 12 August 2011 14:35:20 UTC