http package (only partially working)

packages/http/http_hook.pl

@@ -0,0 +1,84 @@
+/*  Part of SWI-Prolog
+
+    Author:        Jan Wielemaker
+    E-mail:        J.Wielemaker@uva.nl
+    WWW:           http://www.swi-prolog.org
+    Copyright (C): 2008, University of Amsterdam
+
+    This program is free software; you can redistribute it and/or
+    modify it under the terms of the GNU General Public License
+    as published by the Free Software Foundation; either version 2
+    of the License, or (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public
+    License along with this library; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+    As a special exception, if you link this library with other files,
+    compiled with a Free Software compiler, to produce an executable, this
+    library does not by itself cause the resulting executable to be covered
+    by the GNU General Public License. This exception does not however
+    invalidate any other reasons why the executable file might be covered by
+    the GNU General Public License.
+*/
+
+:- module(http_hook,
+	  []).
+
+/** <module> HTTP library hooks
+
+Get the declarations of the HTTP package using
+
+    ==
+    :- use_module(library(http/http_hook)).
+    ==
+
+@tbd	This should be using include, but then it cannot be a module
+	and this would cause more overhead in SWI-Prolog
+@tbd	Complete this and document the hooks.
+*/
+
+		 /*******************************
+		 *	     HTTP-PATH		*
+		 *******************************/
+
+:- multifile http:location/3.
+:- dynamic   http:location/3.
+
+
+		 /*******************************
+		 *	     HTML-WRITE		*
+		 *******************************/
+
+:- multifile
+	html_write:expand//1,
+	html_write:expand_attribute_value//1,
+	html_write:html_head_expansion/2,
+	html_write:layout/3.
+
+
+		 /*******************************
+		 *	   HTTP-DISPATCH	*
+		 *******************************/
+
+:- multifile
+	http:authenticate/3.
+
+
+		 /*******************************
+		 *	 HTTP-PARAMETERS	*
+		 *******************************/
+
+:- multifile
+	http:convert_parameter/3.
+
+%%	http:convert_parameter(+Type, +ValueIn, -ValueOut) is semidet.
+%
+%	Hook to execute a step in the HTTP parameter conversion process.
+%
+%	@see http_parameters:check_type/4.