File size: 2,720 Bytes
557a17a | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 | :- use_module(library(http/thread_httpd)).
:- use_module(library(http/http_dispatch)).
:- use_module(library(http/http_error)).
:- use_module(library(http/html_write)).
% we need this module from the HTTP client library for http_read_data
:- use_module(library(http/http_client)).
:- http_handler('/', web_form, []).
:- include('files/listprolog.pl').
server(Port) :-
http_server(http_dispatch, [port(Port)]).
/*
browse http://127.0.0.1:8000/
This demonstrates handling POST requests
*/
web_form(_Request) :-
reply_html_page(
title('List Prolog Interpreter'),
[
form([action='/landing', method='POST'], [
/**
p([], [
label([for=debug],'Debug (on/off):'),
input([name=debug, type=textarea])
]),
**/
p([], [
label([for=query],'Query (e.g. [[n,reverse],[[1,2,3],[],[v,l]]]):'),
input([name=query, type=textarea])
]),
p([], [
label([for=functions],'Functions (e.g. [
[[n,reverse],[[],[v,l],[v,l]]],
[[n,reverse],[[v,l],[v,m],[v,n]],":-",
[[[n,head],[[v,l],[v,h]]],
[[n,tail],[[v,l],[v,t]]],
[[n,wrap],[[v,h],[v,h1]]],
[[n,append],[[v,h1],[v,m],[v,o]]],
[[n,reverse],[[v,t],[v,o],[v,n]]]
]
]
]):'),
input([name=functions, type=textarea])
]),
p([], input([name=submit, type=submit, value='Submit'], []))
])]).
:- http_handler('/landing', landing_pad, []).
landing_pad(Request) :-
member(method(post), Request), !,
http_read_data(Request, Data, []),
format('Content-type: text/html~n~n', []),
format('<p>', []),
%%portray_clause(Data),
%%term_to_atom(Term,Data),
Data=[%%debug='off',%%Debug1,
query=Query1,functions=Functions1,submit=_],
term_to_atom(Debug2,'off'),
term_to_atom(Query2,Query1),
term_to_atom(Functions2,Functions1),
international_interpret([lang,"en"],Debug2,Query2,Functions2,Result),
%%format('</p><p>========~n', []),
%%portray_clause
portray_clause(Result),
%%writeln1(Data),
format('</p>'). |