.\" -*- mode: troff; coding: utf-8 -*-
.\" Automatically generated by Pod::Man 5.01 (Pod::Simple 3.43)
.\"
.\" Standard preamble:
.\" ========================================================================
.de Sp \" Vertical space (when we can't use .PP)
.if t .sp .5v
.if n .sp
..
.de Vb \" Begin verbatim text
.ft CW
.nf
.ne \\$1
..
.de Ve \" End verbatim text
.ft R
.fi
..
.\" \*(C` and \*(C' are quotes in nroff, nothing in troff, for use with C<>.
.ie n \{\
.    ds C` ""
.    ds C' ""
'br\}
.el\{\
.    ds C`
.    ds C'
'br\}
.\"
.\" Escape single quotes in literal strings from groff's Unicode transform.
.ie \n(.g .ds Aq \(aq
.el       .ds Aq '
.\"
.\" If the F register is >0, we'll generate index entries on stderr for
.\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
.\" entries marked with X<> in POD.  Of course, you'll have to process the
.\" output yourself in some meaningful fashion.
.\"
.\" Avoid warning from groff about undefined register 'F'.
.de IX
..
.nr rF 0
.if \n(.g .if rF .nr rF 1
.if (\n(rF:(\n(.g==0)) \{\
.    if \nF \{\
.        de IX
.        tm Index:\\$1\t\\n%\t"\\$2"
..
.        if !\nF==2 \{\
.            nr % 0
.            nr F 2
.        \}
.    \}
.\}
.rr rF
.\" ========================================================================
.\"
.IX Title "Perl::Critic::Policy::ValuesAndExpressions::ProhibitQuotesAsQuotelikeOperatorDelimiters 3pm"
.TH Perl::Critic::Policy::ValuesAndExpressions::ProhibitQuotesAsQuotelikeOperatorDelimiters 3pm 2023-07-26 "perl v5.38.0" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH NAME
Perl::Critic::Policy::ValuesAndExpressions::ProhibitQuotesAsQuotelikeOperatorDelimiters \- Don't use quotes ("\*(Aq", """, "\`") as delimiters for the quote\-like operators.
.SH AFFILIATION
.IX Header "AFFILIATION"
This Policy is part of the core Perl::Critic
distribution.
.SH DESCRIPTION
.IX Header "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.
.PP
.Vb 3
\&    $x = q"q";                #not ok
\&    $x = q\*(Aqq\*(Aq;                #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
\&
\&    $x =~ m\*(Aq$x\*(Aq;              #ok
\&    $x =~ s\*(Aq$x\*(Aqy\*(Aq;            #ok
\&    $x = qr\*(Aq$x\*(Aqm;             #ok
\&    $x = qx\*(Aqfinger foo@bar\*(Aq;  #ok
.Ve
.SH CONFIGURATION
.IX Header "CONFIGURATION"
This policy has three options: \f(CW\*(C`single_quote_allowed_operators\*(C'\fR,
\&\f(CW\*(C`double_quote_allowed_operators\*(C'\fR, and
\&\f(CW\*(C`back_quote_allowed_operators\*(C'\fR, which control which operators are
allowed to use each of \f(CW\*(C`\*(Aq\*(C'\fR, \f(CW\*(C`"\*(C'\fR, \f(CW\*(C`\`\*(C'\fR as delimiters, respectively.
.PP
The values allowed for these options are a whitespace delimited
selection of the \f(CW\*(C`m\*(C'\fR, \f(CW\*(C`q\*(C'\fR, \f(CW\*(C`qq\*(C'\fR, \f(CW\*(C`qr\*(C'\fR, \f(CW\*(C`qw\*(C'\fR, \f(CW\*(C`qx\*(C'\fR, \f(CW\*(C`s\*(C'\fR, \f(CW\*(C`tr\*(C'\fR,
and \f(CW\*(C`y\*(C'\fR operators.
.PP
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 \f(CW\*(C`m\*(C'\fR, \f(CW\*(C`qr\*(C'\fR, \f(CW\*(C`qx\*(C'\fR, and \f(CW\*(C`s\*(C'\fR operators.  These
defaults are equivalent to having the following in your
\&\fI.perlcriticrc\fR:
.PP
.Vb 4
\&    [ValuesAndExpressions::ProhibitQuotesAsQuotelikeOperatorDelimiters]
\&    single_quote_allowed_operators = m s qr qx
\&    double_quote_allowed_operators =
\&    back_quote_allowed_operators =
.Ve
.SH "SUGGESTED BY"
.IX Header "SUGGESTED BY"
Michael Schwern
.SH AUTHOR
.IX Header "AUTHOR"
Elliot Shank \f(CW\*(C`<perl@galumph.com>\*(C'\fR
.SH COPYRIGHT
.IX Header "COPYRIGHT"
Copyright (c) 2007\-2011 Elliot Shank.
.PP
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.