> If I can't get this to work, I'll be stuck using an if/elsif construct
a little syntactic sugar with an improvised in operator and given/when has no better readability anymore.¹
use strict;
use warnings;
sub in {
for my $val (@_) {
return 1 if $_ eq $val;
}
return;
}
sub test1 {
my ($var) = @_;
my $i;
for ($var) {
if ( in 1 ) { $i = "One" }
elsif ( in 2 ) { $i = "Two" }
elsif ( in 3,4,5 ) { $i = "Three, Four or Five" }
else { $i = "Other" }
}
print "$var is $i\n";
}
sub test2 {
my ($var) = @_;
my $i;
for ($var) {
if ( in 1 ) { $i = "One" ;next}
if ( in 2 ) { $i = "Two" ;next}
if ( in 3,4,5 ) { $i = "Three, Four or Five" ;next}
$i = "Other"
}
print "$var is $i\n";
}
test1($_) for 1..6;
test2($_) for 1..6;
¹) though I think it's still faster, it might be able to automatically optimize to hash-lookups
Cheers Rolf
( addicted to the Perl Programming Language)
-
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.
|