Maybe something like this is what you wanted? It is rather on
the dark side of the force but it may be what you want.
#!/usr/bin/perl -w
use strict;
my @l = (2, 4, 19, 3, 15, 30, 1, 31, 14);
print sort {&{bysort("up")}} @l;
print $/;
print sort {&{bysort("dn")}} @l;
print $/;
sub bysort {
my $by = shift;
if ($by eq "up") {
return sub { $a <=> $b };
} elsif ($by eq "dn") {
return sub { $b <=> $a };
} else {
return sub { $a cmp $b };
}
}
--
$you = new YOU;
honk() if $you->love(perl)
-
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.
|