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FAQ 7.3 Do I always/never have to quote my strings or use semicolons and commas?


This is an excerpt from the latest version perlfaq7.pod, which
comes with the standard Perl distribution. These postings aim to
reduce the number of repeated questions as well as allow the community
to review and update the answers. The latest version of the complete
perlfaq is at http://faq.perl.org .

--------------------------------------------------------------------

7.3: Do I always/never have to quote my strings or use semicolons and commas?

    Normally, a bareword doesn't need to be quoted, but in most cases
    probably should be (and must be under "use strict"). But a hash key
    consisting of a simple word (that isn't the name of a defined
    subroutine) and the left-hand operand to the "=>" operator both count as
    though they were quoted:

        This                    is like this
        ------------            ---------------
        $foo{line}              $foo{'line'}
        bar => stuff            'bar' => stuff

    The final semicolon in a block is optional, as is the final comma in a
    list. Good style (see perlstyle) says to put them in except for
    one-liners:

        if ($whoops) { exit 1 }
        @nums = (1, 2, 3);

        if ($whoops) {
            exit 1;
        }
        @lines = (
            "There Beren came from mountains cold",
            "And lost he wandered under leaves",
        );

--------------------------------------------------------------------

The perlfaq-workers, a group of volunteers, maintain the perlfaq. They
are not necessarily experts in every domain where Perl might show up,
so please include as much information as possible and relevant in any
corrections. The perlfaq-workers also don't have access to every
operating system or platform, so please include relevant details for
corrections to examples that do not work on particular platforms.
Working code is greatly appreciated.

If you'd like to help maintain the perlfaq, see the details in
perlfaq.pod.

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