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Perl::Critic::Policy::ValuesAndExpUseriContributediPerltDocumentationOperatorDelimiters(3)elimiters(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)

NAME | AFFILIATION | DESCRIPTION | CONFIGURATION | SUGGESTED BY | AUTHOR | COPYRIGHT

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