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<!-- Created by texi2html 1.56k + clip patches and <A href="http://www.clip.dia.fi.upm.es/Software">lpdoc</A> from pillow_doc.texi on 17 July 2000 -->
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<TITLE>The PiLLoW Web Programming Library - Introduction</TITLE>
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<H1><A NAME="SEC2" HREF="pillow_doc_toc.html#TOC2">Introduction</A></H1>
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This package implements the PiLLoW library [CHV96]. The following three chapters document, respectively, the predicates for HTML/XML/CGI programming, the predicate for HTTP conectivity, and the types used in the definition of the predicates (key for fully understanding the other predicates). You can find a paper and some additional information in the
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<CODE>library/pillow/doc</CODE> directory of the distribution, and in the WWW at <A HREF="http://clip.dia.fi.upm.es/Software/pillow/pillow.html">http://clip.dia.fi.upm.es/Software/pillow/pillow.html</A>. There is also a
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<EM>PiLLoW on-line tutorial</EM> (slides) at <A HREF="http://clip.dia.fi.upm.es/logalg/slides/C_pillow/C_pillow.html">http://clip.dia.fi.upm.es/logalg/slides/C_pillow/C_pillow.html</A> which illustrates the basic features and provides a number of examples of PiLLoW use.
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<LI><A HREF="pillow_doc_2.html#SEC3">Installing PiLLoW</A>
<LI><A HREF="pillow_doc_2.html#SEC4">Usage and interface (pillow)</A>
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<H2><A NAME="SEC3" HREF="pillow_doc_toc.html#TOC3">Installing PiLLoW</A></H2>
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To correctly install PiLLoW, first, make sure you downloaded the right version of PiLLoW (there are different versions for different LP/CLP systems; the version that comes with Ciao is of course the right one for Ciao). Then, please follow these steps:
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<LI>Copy the files in the <CODE>images</CODE> directory to a WWW accessible directory in your server.
<LI>Edit the file
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<CODE>icon_address.pl</CODE> and change the fact to point to the URL to be used to access the images above.
<LI>In the Ciao system the files are in the correct place, in other systems copy the files
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<CODE>pillow.pl</CODE> and
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<CODE>icon_address.pl</CODE> to a suitable directory so that your Prolog system will find them.
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<H2><A NAME="SEC4" HREF="pillow_doc_toc.html#TOC4">Usage and interface (<CODE>pillow</CODE>)</A></H2>
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<LI><STRONG>Library usage:</STRONG>
<CODE>:- use_package(pillow).</CODE>
or
<CODE>:- module(...,...,[pillow]).</CODE>
<LI><STRONG>New operators defined:</STRONG>
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<CODE>$/2</CODE> [150,xfx],
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<CODE>$/1</CODE> [150,fx].
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