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<H1>Re: [MUD-Dev]  Prepositions and parsing</H1>
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<LI><em>To</em>: <A HREF="mailto:mud-dev#null,net">mud-dev#null,net</A></LI>
<LI><em>Subject</em>: Re: [MUD-Dev]  Prepositions and parsing</LI>
<LI><em>From</em>: Nathan Yospe &lt;<A HREF="mailto:yospe#hawaii,edu">yospe#hawaii,edu</A>&gt;</LI>
<LI><em>Date</em>: Wed, 7 May 1997 11:33:33 -1000</LI>
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<PRE>
On Tue, 6 May 1997 clawrenc#cup,hp.com wrote:

:What with the recent discussion of parsers and methods of parsing
:commands, and old entry from my to-do list popped up:

:  Support for prepositions such as "under", "on top of", "behind" etc.

:Anyone got any ideas for supporting/parsing a command like:

:  hide under the desk

This one seems pretty straightforward. "under" is one of the words my
parser always checks for, for this very reason... I define objects in such
a way that hiding under, behind, in, on (without much sucess), or more
ambiguously near, next to, and above are all useful concepts.

:or

:  put the rock under the rug behind the pillar

This, on the other hand, is rather more ambiguous, and calls for a check
in order of a) a rock in inventory or nearby in the open and a rug behind
a pillar, or b) a rock under a rug and a pillar in inventory (bad thing)
or nearby in the open. Behind and under both parse as relational keys. I
think I raised this question in the last couple weeks of the old list. I
used the example "Shoot the big yellow bird in the left eye." as a
breakdown of the above type of scenario. If you want any more of this, I
dedicated a good 4k of text to evaluating this sort of thing before
designing my parser.

   __    _   __  _   _   ,  ,  , ,  
  /_  / / ) /_  /_) / ) /| /| / /\            First Light of a Nova Dawn
 /   / / \ /_  /_) / \ /-|/ |/ /_/            Final Night of a World Gone
Nathan F. Yospe - University of Hawaii Dept of Physics - yospe#hawaii,edu


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<ul><li>Thread context:
<BLOCKQUOTE><UL>
<LI><STRONG>Re: [MUD-Dev]  Comments on the DB layer</STRONG>, <EM>(continued)</EM>
<ul compact>
<LI><strong><A NAME="00359" HREF="msg00359.html">Re: [MUD-Dev]  Comments on the DB layer</A></strong>, 
clawrenc <a href="mailto:clawrenc#cup,hp.com">clawrenc#cup,hp.com</a>, Sat 10 May 1997, 20:18 GMT
</LI>
<LI><strong><A NAME="00419" HREF="msg00419.html">Re: [MUD-Dev]  Comments on the DB layer</A></strong>, 
Jon A. Lambert <a href="mailto:jlsysinc#ix,netcom.com">jlsysinc#ix,netcom.com</a>, Tue 13 May 1997, 10:41 GMT
<UL>
<LI><strong><A NAME="00608" HREF="msg00608.html">Re: [MUD-Dev]  Comments on the DB layer</A></strong>, 
clawrenc <a href="mailto:clawrenc#cup,hp.com">clawrenc#cup,hp.com</a>, Tue 20 May 1997, 02:32 GMT
</LI>
</UL>
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<LI><strong><A NAME="00326" HREF="msg00326.html">Prepositions and parsing</A></strong>, 
clawrenc <a href="mailto:clawrenc#cup,hp.com">clawrenc#cup,hp.com</a>, Wed 07 May 1997, 07:48 GMT
<UL>
<LI><strong><A NAME="00333" HREF="msg00333.html">Re: [MUD-Dev]  Prepositions and parsing</A></strong>, 
Nathan Yospe <a href="mailto:yospe#hawaii,edu">yospe#hawaii,edu</a>, Thu 08 May 1997, 04:45 GMT
</LI>
<LI><strong><A NAME="00337" HREF="msg00337.html">[MUD-Dev] Re: Prepositions and parsing</A></strong>, 
Marian Griffith <a href="mailto:gryphon#iaehv,nl">gryphon#iaehv,nl</a>, Fri 09 May 1997, 05:30 GMT
<UL>
<LI><strong><A NAME="00351" HREF="msg00351.html">Re: [MUD-Dev] Re: Prepositions and parsing</A></strong>, 
clawrenc <a href="mailto:clawrenc#cup,hp.com">clawrenc#cup,hp.com</a>, Sat 10 May 1997, 02:34 GMT
<UL>
<LI><strong><A NAME="00371" HREF="msg00371.html">[MUD-Dev] Re: Prepositions and parsing</A></strong>, 
Marian Griffith <a href="mailto:gryphon#iaehv,nl">gryphon#iaehv,nl</a>, Sun 11 May 1997, 17:24 GMT
<UL>
<LI><strong><A NAME="00473" HREF="msg00473.html">Re: [MUD-Dev] Re: Prepositions and parsing</A></strong>, 
clawrenc <a href="mailto:clawrenc#cup,hp.com">clawrenc#cup,hp.com</a>, Thu 15 May 1997, 00:34 GMT
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