Changes from Version 1 of PythonChallenge4

PythonChallenge4

v0	v1
	1	= Python Challenge -- Level 4 -- Solution =
	2
	3	==== Code ====
	4
	5	{{{
	6	#!d
	7	import tango.io.Stdout;
	8	import tango.net.Uri, tango.net.http.HttpClient;
	9	import tango.stdc.stdlib;
	10	import tango.text.Regex;
	11
	12	pragma (lib, "WS2_32.lib");
	13
	14	void[] lastQuery;
	15	Uri uri;
	16	HttpClient client;
	17
	18	void main () {
	19	char[] changeQuery (Regex match) {
	20	uri.setQuery("nothing=" ~ match.match(1));
	21	return match.match(1);
	22	}
	23
	24	void sink (void[] content) {
	25	debug Stdout.print(cast(char[])content ~ "\n");
	26	if (find(cast(char[])content, "Divide") != -1) {
	27	uri.setQuery("nothing=46059");
	28	} else if (find(cast(char[])content, "nothing is ") != -1) {
	29	size_t location = rfind(cast(char[])content, "nothing is ");
	30	sub(cast(char[])content[location .. length], "(([0-9])+)", &changeQuery);
	31	} else if (cast(char[])content != "" && lastQuery == content) {
	32	Stdout.print(cast(char[])content).flush();
	33	exit(0);
	34	}
	35	if (cast(char[])content != "") {
	36	lastQuery = content;
	37	}
	38	}
	39
	40	uri = new Uri("http://www.pythonchallenge.com/pc/def/linkedlist.php?nothing=12345");
	41	client = new HttpClient(HttpClient.Get, uri);
	42
	43	while (true) {
	44	auto data = client.open();
	45	if (client.isResponseOK()) {
	46	client.read(&sink);
	47	}
	48	client.close();
	49	client.reset();
	50	}
	51	}
	52	}}}