in reply to Strict isn't strict enough

If you'd typed

$slave::tyop = "Hello world";
print "$slave::typo\n";

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You'd've gotton 3 warnings:

Name "slave::typo" used only once: possible typo at -e line 1
Name "slave::tyop" used only once: possible typo at -e line 1
Use of uninitialized value $slave::typo in print at -e line 1

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As is, you've used it twice and spelt it the same both times. That a pretty clear indication that you are doing it intentionally.

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The start of some sanity?

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Re^2: Strict isn't strict enough
by davies (Monsignor) on Dec 31, 2011 at 16:43 UTC

    Agreed, but in more complicated code it may be the result of a single typo being cut & pasted. I have the scars.

    Regards,

    John Davies

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      *ANYTHING* can be typoed, and then cut-and-pasted. If your coding style is to randomly hit the keyboard, and then ask perl whether you did a good job, don't expect use strict; to be a silver bullet.

      Perhaps you should replace /usr/bin/perl with 

      #!/usr/bin/sh
echo "Possible typo detected at line 1. Please fix."
exit 1

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      BTW, what should perl do if you did my $hwatever and then cut-and-pasted the $hwatever?
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        what should perl do if you did my $hwatever and then cut-and-pasted the $hwatever?

        Give a compile time error when I use $whatever. Obviously it isn't a problem if the same typo is used throughout, but if a variable can be used in two places then there is scope for typos that I expected strict to catch before I read the docs. I still want to catch it if I can.

        Regards,

        John Davies

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