83 lines
2.9 KiB
Prolog
83 lines
2.9 KiB
Prolog
/* $Id$
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Part of SWI-Prolog
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Author: Jan Wielemaker
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E-mail: jan@swi.psy.uva.nl
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WWW: http://www.swi-prolog.org
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Copyright (C): 1985-2002, University of Amsterdam
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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As a special exception, if you link this library with other files,
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compiled with a Free Software compiler, to produce an executable, this
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library does not by itself cause the resulting executable to be covered
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by the GNU General Public License. This exception does not however
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invalidate any other reasons why the executable file might be covered by
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the GNU General Public License.
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*/
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:- module(cgi,
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[ cgi_get_form/1 % -ListOf Name(Value)
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]).
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:- use_module(library(shlib)).
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:- use_foreign_library(foreign(cgi), install_cgi).
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/** <module> Read CGI parameters
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Below is a very simple CGI script that prints the passed parameters. To
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test it, compile this program using the command below, copy it to your
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cgi-bin directory (or make it otherwise known as a CGI-script) and try
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the query =|http://myhost.mydomain/cgi-bin/cgidemo?hello=world|=
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==
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% swipl -o cgidemo --goal=main --toplevel=halt -c cgidemo.pl
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==
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==
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:- use_module(library(cgi)).
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main :-
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set_stream(current_output, encoding(utf8)),
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cgi_get_form(Arguments),
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format('Content-type: text/html; charset=UTF-8~n~n', []),
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format('<html>~n', []),
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format('<head>~n', []),
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format('<title>Simple SWI-Prolog CGI script</title>~n', []),
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format('</head>~n~n', []),
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format('<body>~n', []),
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format('<p>', []),
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print_args(Arguments),
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format('</body>~n</html>~n', []).
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print_args([]).
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print_args([A0|T]) :-
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A0 =.. [Name, Value],
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format('<b>~w</b>=<em>~w</em><br>~n', [Name, Value]),
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print_args(T).
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==
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*/
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%% cgi_get_form(-Form)
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%
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% Decodes standard input and the environment variables to obtain a
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% list of arguments passed to the CGI script. This predicate both
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% deals with the CGI *GET* method as well as the *POST* method. If
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% the data cannot be obtained, an existence_error exception is
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% raised.
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%
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% @param Form is a list of Name(Value) terms.
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