Hi, I have Perl 5.16.1 and following Perl code:
#!/usr/bin/perl -w

while (<DATA>) {
        $str = $_;
        chomp $str;
        print "str=$str\n";
}

__DATA__
e-2 ddfgdgdf
e-3
e-4 dfgrty5r6y56
e-5
e-6
e-8

[download]
The code shows all DATA. However, if I put use Switch; after shebang, the code doesn't run printf at all. It seems the core module Switch has an effect on DATA processing. I could not find anything in the documents.. Do you recommend me to use given()/when() instead of Switch? Regards.

In reply to effect of Switch module on DATA by utku

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