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perl::critic::policy::valuesandexpressions::prohibitquotesasquot(3pm) [debian man page]

Perl::Critic::Policy::ValuesAndExpressions::ProhibitQuPerl::Critic::Policy::ValuesAndExpressions::ProhibitQuotesAsQuotelikeOperatorDelimiters(3pm)

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 v5.14.2					      Perl::Critic::Policy::ValuesAndExpressions::ProhibitQuotesAsQuotelikeOperatorDelimiters(3pm)

Check Out this Related Man Page

Perl::Critic::Policy::RegularExpressions::ProhibitEnumerUserCContributed PPerl::Critic::Policy::RegularExpressions::ProhibitEnumeratedClasses(3pm)

NAME

       Perl::Critic::Policy::RegularExpressions::ProhibitEnumeratedClasses - Use named character classes instead of explicit character lists.

AFFILIATION

       This Policy is part of the core Perl::Critic distribution.

DESCRIPTION

       This policy is not for everyone!  If you are working in pure ASCII, then disable it now or you may see some false violations.

       On the other hand many of us are working in a multilingual world with an extended character set, probably Unicode.  In that world, patterns
       like "m/[A-Z]/" can be a source of bugs when you really meant "m/p{IsUpper}/".	This policy catches a selection of possible incorrect
       character class usage.

       Specifically, the patterns are:

       "[	
f ]" vs. "s"

       "[	
 ]" vs. "s"   (because many people forget "f")

       "[A-Za-z0-9_]" vs. "w"

       "[A-Za-z]" vs. "p{IsAlphabetic}"

       "[A-Z]" vs. "p{IsUpper}"

       "[a-z]" vs. "p{IsLower}"

       "[0-9]" vs. "d"

       "[^w]" vs. "W"

       "[^s]" vs. "S"

CONFIGURATION

       This Policy is not configurable except for the standard options.

CREDITS

       Initial development of this policy was supported by a grant from the Perl Foundation.

AUTHOR

       Chris Dolan <cdolan@cpan.org>

COPYRIGHT

       Copyright (c) 2007-2011 Chris Dolan.  Many rights reserved.

       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 v5.14.2							    2012-0Perl::Critic::Policy::RegularExpressions::ProhibitEnumeratedClasses(3pm)
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