In scalar context, the match operator and thus the bind operator returns whether a match was found or not. You want to evaluate the match in list context to get it to return the list of matches.
Fix:
my ($aDate) = $a =~ /\bdate:\s*"(\d{4}-\d{2}-\d{2})"/;
my ($bDate) = $b =~ /\bdate:\s*"(\d{4}-\d{2}-\d{2})"/;
Also:
- Added \b to avoid catching enddate.
- Added \s* in case the JSON encoder decides to start adding whitespace.
- Removed some superfluous backslashes.
Note: Will break if you get
- { date:"\u0032015-05-01", content:"erwa" }
- { foo:{date:"2014-05-01"}, date:"2015-05-01", content:"erwa" }
- etc
For a reliable but slower solution, you can use
use JSON::XS qw( decode_json );
my @sorted =
map { substr($_, 10) }
sort
map { decode_json($_)->{date} . $_ }
@events;
As for the blank lines, just remove them first using
@events = grep /\S/, @events;
Update: Added to my answer.
-
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.
|