Perl::Critic::Policy::ValuesAndExpressions::ProhibitQuotesAsQuotelikeOperatorDelimiters(3)
NAME
Perl::Critic::Policy::ValuesAndExpressions::ProhibitQuotesAsQuotelikeOperatorDelimiters
- Don't use quotes ("'", """, "`") as delimiters for the quote-like
operators.
AFFILIATION
This Policy is part of the core Perl::Critic distribution.
DESCRIPTION
With the obvious exception of using single-quotes to prevent
interpolation, using quotes with the quote-like operators kind of
defeats the purpose of them and produces obfuscated code, causing
problems for future maintainers and their editors/IDEs.
$x = q"q"; #not ok
$x = q'q'; #not ok
$x = q`q`; #not ok
$x = qq"q"; #not ok
$x = qr"r"; #not ok
$x = qw"w"; #not ok
$x = qx`date`; #not ok
$x =~ m"m"; #not ok
$x =~ s"s"x"; #not ok
$x =~ tr"t"r"; #not ok
$x =~ y"x"y"; #not ok
$x =~ m'$x'; #ok
$x =~ s'$x'y'; #ok
$x = qr'$x'm; #ok
$x = qx'finger foo@bar'; #ok
CONFIGURATION
This policy has three options: "single_quote_allowed_operators",
"double_quote_allowed_operators", and "back_quote_allowed_operators",
which control which operators are allowed to use each of "'", """, "`"
as delimiters, respectively.
The values allowed for these options are a whitespace delimited
selection of the "m", "q", "qq", "qr", "qw", "qx", "s", "tr", and "y"
operators.
By default, double quotes and back quotes (backticks) are not allowed
as delimiters for any operators and single quotes are allowed as
delimiters for the "m", "qr", "qx", and "s" operators. These defaults
are equivalent to having the following in your .perlcriticrc:
[ValuesAndExpressions::ProhibitQuotesAsQuotelikeOperatorDelimiters]
single_quote_allowed_operators = m s qr qx
double_quote_allowed_operators =
back_quote_allowed_operators =
SUGGESTED BY
Michael Schwern
AUTHOR
Elliot Shank "<perl@galumph.com>"
COPYRIGHT
Copyright (c) 2007-2011 Elliot Shank.
This program is free software; you can redistribute it and/or modify it
under the same terms as Perl itself. The full text of this license can
be found in the LICENSE file included with this module.
Perl::Critic::Policy::ValuesAndExpressions::ProhibitQuotesAsQuotelikeOperatorDelimiters(3)
perl-critic 1.134.0 - Generated Wed Jun 5 10:35:54 CDT 2019