Solved

Calculating Business days in Perl

Posted on 2000-04-27
5
708 Views
Last Modified: 2012-08-13
Can someone please help me with the code in Perl to calculate the number of business days (excluding weekends) between two days entered by the user?
Any help would be appreciated.

Thank you.
0
Comment
Question by:lsellers
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
5 Comments
 
LVL 19

Expert Comment

by:Kim Ryan
ID: 2758123
You will need to download and install a CPAN module called Date::Manip for www.cpan.org

use Date::Manip;
$date1=&ParseDate($string1);
$date2=&ParseDate($string2);
$mode =2; # business mode
$diff=&DateCalc($date1,$date2\$err,$mode]);

0
 
LVL 84

Expert Comment

by:ozo
ID: 2758159
You'll also need a configuration file defining your holidays.
0
 
LVL 3

Accepted Solution

by:
tgoetze earned 125 total points
ID: 2758313
With no error checking and ignoring holidays, here is a solution:

$from = "4/24/2000";
$to = "4/27/2001";

$num_business_days = business_days($from, $to);
print "There are $num_business_days business days between $from and $to\n";

sub business_days {
    @from = parse_date($_[0]);
    @to = parse_date($_[1]);
    $days_apart = ($to[9] - $from[9])/(60*60*24);
    if ($from[6] > $to[6]) {
        $days_apart -= 2 * ((int $days_apart/7) + 1);
    } else {
        $days_apart -= 2 * (int $days_apart/7);
    }
    return $days_apart;
}

sub parse_date {
    my @F = split(/\//, $_[0]);
    my $f = timelocal(0, 0, 0, $F[1], $F[0] - 1, $F[2] - 1900);
    return localtime($f), $f;
}
0
 
LVL 19

Expert Comment

by:Kim Ryan
ID: 2763167
Date::Manip is a very comprehensive module. By using it you are making use of years of testing and development. Modules save you time by not having to reinvent the wheel.
0
 

Author Comment

by:lsellers
ID: 2766416
Thank you very much!
0

Featured Post

[Webinar] Learn How Hackers Steal Your Credentials

Do You Know How Hackers Steal Your Credentials? Join us and Skyport Systems to learn how hackers steal your credentials and why Active Directory must be secure to stop them. Thursday, July 13, 2017 10:00 A.M. PDT

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Many time we need to work with multiple files all together. If its windows system then we can use some GUI based editor to accomplish our task. But what if you are on putty or have only CLI(Command Line Interface) as an option to  edit your files. I…
There are many situations when we need to display the data in sorted order. For example: Student details by name or by rank or by total marks etc. If you are working on data driven based projects then you will use sorting techniques very frequently.…
Explain concepts important to validation of email addresses with regular expressions. Applies to most languages/tools that uses regular expressions. Consider email address RFCs: Look at HTML5 form input element (with type=email) regex pattern: T…
Six Sigma Control Plans

695 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question