How to resolve the algorithm Web scraping step by step in the Objeck programming language

Published on 12 May 2024 09:40 PM
#Objeck

How to resolve the algorithm Web scraping step by step in the Objeck programming language

Table of Contents

Problem Statement

Create a program that downloads the time from this URL:   http://tycho.usno.navy.mil/cgi-bin/timer.pl   and then prints the current UTC time by extracting just the UTC time from the web page's HTML. Alternatively, if the above url is not working, grab the first date/time off this page's talk page.

If possible, only use libraries that come at no extra monetary cost with the programming language and that are widely available and popular such as CPAN for Perl or Boost for C++.

Let's start with the solution:

Step by Step solution about How to resolve the algorithm Web scraping step by step in the Objeck programming language

Source code in the objeck programming language

use Net;
use IO;
use Structure;

bundle Default {
  class Scrape {
    function : Main(args : String[]) ~ Nil {
      client := HttpClient->New();
      lines := client->Get("http://tycho.usno.navy.mil/cgi-bin/timer.pl", 80);
      
       i := 0; 
       found := false;
      while(found <> true & i < lines->Size()) {
         line := lines->Get(i)->As(String);
        index := line->Find("UTC");
        if(index > -1) {
          time := line->SubString(index - 9, 9)->Trim();
          time->PrintLine();
          found := true;
        };
        i += 1;
      };
    }
  }
}

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