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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
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Task/HTTP/ALGOL-68/http.alg Normal file
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STRING domain="rosettacode.org";
STRING page="wiki/Main_Page";
STRING re success="^HTTP/[0-9.]* 200";
STRING re result description="^HTTP/[0-9.]* [0-9]+ [a-zA-Z ]*";
STRING re doctype ="\s\s<!DOCTYPE html PUBLIC ""[^>]+"">\s+";
PROC html page = (REF STRING page) BOOL: (
BOOL out=grep in string(re success, page, NIL, NIL) = 0;
IF INT start, end;
grep in string(re result description, page, start, end) = 0
THEN
page:=page[end+1:];
IF grep in string(re doctype, page, start, end) = 0
THEN page:=page[start+2:]
ELSE print ("unknown format retrieving page")
FI
ELSE print ("unknown error retrieving page")
FI;
out
);
IF STRING reply;
INT rc =
http content (reply, domain, "http://"+domain+"/"+page, 0);
rc = 0 AND html page (reply)
THEN print (reply)
ELSE print (strerror (rc))
FI