There are a pile of Date manipulation modules available for Perl. The big hammer is Date::Manip. Possibly the way to validate your date string is first to chop it up assuming that the format is correct:
if ($yyyymmdd !~ /(\d{4})(\d\d)(\d\d)/) {
print "Bad data string provided: $yyyymmdd\n";
return 0;
}
my ($year, $month, $day) = ($1, $2, $3);
...
You can then check that the year, month and day are within the expected ranges and finally validate the full date by using Date::Manip.
DWIM is Perl's answer to Gödel
-
Are you posting in the right place? Check out Where do I post X? to know for sure.
-
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
-
Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
-
Want more info? How to link
or How to display code and escape characters
are good places to start.
|