FAQ 7.3 Do I always/never have to quote my strings or use semicolons and commas?
in [Perl]
|
Prev: FAQ 8.38 How do I timeout a slow event?
Next: FAQ 9.23 How do I find out my hostname, domainname, or IP address?
From: PerlFAQ Server on 13 Mar 2010 06:00 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. |