Re: Use an array slices

[blakem]

Have you thought about what happens when you add the tenth (i.e. '10') branch?

-Blake

[nite_man]

This decision doesn't have pretensions on absolutly universality. I have just had a case with fixed choises. If I will add the tenth branch, I will add a choice for it.

#!/usr/bin/perl -w

use strict;

[blakem]

I assume that case would look something like this:

#!/usr/bin/perl -wT
use strict;

my $value = 10;

SWITCH: for ($value) {
    /0/  && do {print "ZERO\n"; last; };
    /1/  && do {print "ONE\n";  last; };
    /10/ && do {print "TEN\n";  last; };
                print "NONE OF THE ABOVE\n";
}

Can you guess what the output is? Run it and find out.

-Blake

[hypochrismutreefuzz]

It produces the ZERO message :) Matching the whole string produces better results:

#!/usr/local/bin/perl

use strict;
use warnings;

my $value = 10;
SWITCH: for ($value) {
    /^0\z/  && do {print "ZERO\n"; last; };
    /^1\z/  && do {print "ONE\n";  last; };
    /^10\z/ && do {print "TEN\n";  last; };
                print "NONE OF THE ABOVE\n";
}

[TVSET]

Well, "ZERO". But that's easily solvable (although it looks less pretty):

#!/usr/bin/perl -wT
use strict;

my $value = 10;

SWITCH: for ($value) {
    /^0$/  && do {print "ZERO\n"; last; };
    /^1$/  && do {print "ONE\n";  last; };
    /^10$/ && do {print "TEN\n";  last; };
                print "NONE OF THE ABOVE\n";
}

Leonid Mamtchenkov