perl -mstrict foo.pl

ViceRaid has asked for the wisdom of the Perl Monks concerning the following question:

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Re: perl -mstrict foo.pl by djantzen (Priest) on Jun 06, 2003 at 16:32 UTC
`perl -Mstrict script.pl` works for me. "The dead do not recognize context" -- Kai, Lexx	[reply] [d/l]
Re: perl -mstrict foo.pl by DamnDirtyApe (Curate) on Jun 06, 2003 at 16:33 UTC
Seems to work fine for me... `(~) $ perl -Mstrict -e '$foo = 'bar'; print $foo . $/;' Global symbol "$foo" requires explicit package name at -e line 1. Global symbol "$foo" requires explicit package name at -e line 1. Bareword "bar" not allowed while "strict subs" in use at -e line 1. Execution of -e aborted due to compilation errors.` [download] Update: Wow, still to early in the morning for me. Still, when I fix my quotes, I get the same basic results: `(~) $ perl -Mstrict -e '$foo = "bar"; print $foo . $/;' Global symbol "$foo" requires explicit package name at -e line 1. Global symbol "$foo" requires explicit package name at -e line 1. Execution of -e aborted due to compilation errors.` [download] _______________ DamnDirtyApe Those who know that they are profound strive for clarity. Those who would like to seem profound to the crowd strive for obscurity. --Friedrich Nietzsche	[reply] [d/l] [select]
Re: perl -mstrict foo.pl by Tomte (Priest) on Jun 06, 2003 at 16:33 UTC
normaly: `tom@margo:~> perl -e 'print $test'; tom@margo:~>` [download] Enforce strict `tom@margo:~> perl -Mstrict -e 'print $test'; Global symbol "$test" requires explicit package name at -e line 1. Execution of -e aborted due to compilation errors.` [download] Or did i misread your question? regards, tomte Hlade's Law: If you have a difficult task, give it to a lazy person -- they will find an easier way to do it.	[reply] [d/l] [select]
Re: Re: perl -mstrict foo.pl by ViceRaid (Chaplain) on Jun 06, 2003 at 16:43 UTC
Yes, thank you, you've all understood my question right. There must be something else going on ... something fishy ... something embarrassing ... `alexf@localhost ~ $ perl -Mstrict -e 'print $a' alexf@localhost ~ $` [download] Doubly embarrassing, looking back to Feb 2002, I once advised a soul facing exactly this puzzler. Yours, sheepishly ViceRaid	[reply] [d/l]
Re: Re: Re: perl -mstrict foo.pl by Tomte (Priest) on Jun 06, 2003 at 16:46 UTC
Update: realized too late that you understood the reason, nevertheless may this answer stand here for others as slow as myself in understanding written english :) `perldoc perlvar` :) `$a $b Special package variables when using sort(), see "sort" in perlfunc. Because of this specialness $a and $b don't need to be declared (using local(), use vars, or our()) even when using the strict vars pragma. Don't lexicalize them with "my $a" or "my $b" if you want to be able to use them in the sort() comparison block or function.` [download] regards, tomte Hlade's Law: If you have a difficult task, give it to a lazy person -- they will find an easier way to do it.	[reply] [d/l]
Re: Re: Re: perl -mstrict foo.pl by djantzen (Priest) on Jun 06, 2003 at 17:24 UTC
Oh, ha! `$a` and `$b` are global variables used by sort and so are already known by perl. That's why you don't see any errors in your example. "The dead do not recognize context" -- Kai, Lexx	[reply] [d/l] [select]