Good use of a "seen" hash,
asarih, but i have to say that
i would rather use this:
my ($value,$key) = $_ =~ /^([^\|]+)\|(.*)/;
than explicitly "spell out" $1 and $2. But if all
you want to do is split at the first pipe, just use
split:
my ($key,$value) = split(/\|/,$_,2);
next if $seen{$value};
print "$key: $value\n";
$seen{$value}++;
I don't have time for some benchmarking right now, but
substr and
index are fast:
my $index = index($_,'|');
my $key = substr($_,0,$index);
my $value = substr($_,$index);
Just some more ways to do it. ;)
jeffa
L-LL-L--L-LL-L--L-LL-L--
-R--R-RR-R--R-RR-R--R-RR
B--B--B--B--B--B--B--B--
H---H---H---H---H---H---
(the triplet paradiddle with high-hat)
-
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.