<HTML> <HEAD> <!-- Created by texi2html 1.56k + clip patches and <A href="http://www.clip.dia.fi.upm.es/Software">lpdoc</A> from ciao.texi on 28 January 2007 --> <LINK rel="stylesheet" href="ciao.css" type="text/css"> <TITLE>The Ciao Prolog System - Definite clause grammars (expansion)</TITLE> </HEAD> <BODY> Go to the <A HREF="ciao_1.html">first</A>, <A HREF="ciao_45.html">previous</A>, <A HREF="ciao_47.html">next</A>, <A HREF="ciao_241.html">last</A> section, <A HREF="ciao_toc.html">table of contents</A>. <P><HR><P> <H1><A NAME="SEC225" HREF="ciao_toc.html#TOC225">Definite clause grammars (expansion)</A></H1> <P> <A NAME="IDX3055"></A> <P> <STRONG>Author(s):</STRONG> Daniel Cabeza. <P> <STRONG>Version:</STRONG> 1.9#302 (2004/2/16, 18:48:1 CET) <P> This module implements the Definite clause grammars (expansion). <UL> <LI><A HREF="ciao_46.html#SEC226">Usage and interface (dcg_expansion)</A> <LI><A HREF="ciao_46.html#SEC227">Documentation on exports (dcg_expansion)</A> </UL> <H2><A NAME="SEC226" HREF="ciao_toc.html#TOC226">Usage and interface (<CODE>dcg_expansion</CODE>)</A></H2> <div class="cartouche"> <UL> <LI><STRONG>Library usage:</STRONG> <CODE>:- use_module(library(dcg_expansion)).</CODE> <LI><STRONG>Exports:</STRONG> <UL> <LI><EM>Predicates:</EM> <A NAME="IDX3056"></A> <CODE>phrase/2</CODE>, <A NAME="IDX3057"></A> <CODE>phrase/3</CODE>, <A NAME="IDX3058"></A> <CODE>dcg_translation/2</CODE>. </UL> <LI><STRONG>Other modules used:</STRONG> <UL> <LI><EM>System library modules:</EM> <A NAME="IDX3059"></A> <CODE>terms</CODE>, <A NAME="IDX3060"></A> <CODE>assertions/doc_props</CODE>. </UL> </UL> </div class="cartouche"> <H2><A NAME="SEC227" HREF="ciao_toc.html#TOC227">Documentation on exports (<CODE>dcg_expansion</CODE>)</A></H2> <P> <A NAME="IDX3061"></A> <A NAME="IDX3062"></A> <DL> <DT><span class="define">PREDICATE:</span> <B>phrase/2:</B> <DD><A NAME="IDX3063"></A> <P> <CODE>phrase(Phrase, List)</CODE> <P> Like <CODE>phrase(Phrase,List,[])</CODE>. <P> <EM>Meta-predicate</EM> with arguments: <CODE>phrase(goal,?)</CODE>. </DL> <P> <A NAME="IDX3064"></A> <A NAME="IDX3065"></A> <DL> <DT><span class="define">PREDICATE:</span> <B>phrase/3:</B> <DD><A NAME="IDX3066"></A> <P> <EM>Meta-predicate</EM> with arguments: <CODE>phrase(goal,?,?)</CODE>. <P> <STRONG>Usage:</STRONG> <CODE>phrase(+Phrase, ?List, ?Remainder)</CODE> <UL> <LI><EM>Description:</EM> The list <CODE>List</CODE> is a phrase of type <CODE>Phrase</CODE> (according to the current grammar rules), where <CODE>Phrase</CODE> is either a non-terminal or more generally a grammar rule body. <CODE>Remainder</CODE> is what remains of the list after a phrase has been found. <LI><EM>The following properties should hold globally:</EM> Documentation is still incomplete: <CODE>phrase(+Phrase,?List,?Remainder)</CODE> may not conform the functionality documented. (<CODE>doc_props:doc_incomplete/1</CODE>) </UL> </DL> <P> <A NAME="IDX3067"></A> <A NAME="IDX3068"></A> <DL> <DT><span class="define">PREDICATE:</span> <B>dcg_translation/2:</B> <DD><A NAME="IDX3069"></A> <P> Performs the code expansion of source clauses that use DCGs. </DL> <P><HR><P> Go to the <A HREF="ciao_1.html">first</A>, <A HREF="ciao_45.html">previous</A>, <A HREF="ciao_47.html">next</A>, <A HREF="ciao_241.html">last</A> section, <A HREF="ciao_toc.html">table of contents</A>. </BODY> </HTML>
