[Moscow.pm] String *may* require interpolation See page 51 of PBP. (Severity: 1)
Anton Nikishaev
me на lelf.lu
Вс Окт 13 04:07:28 PDT 2013
On Oct 13, 2013, at 3:25 AM, Nikolay Mishin <mi at ya.ru> wrote:
> MoscowPM, доброй ночи,
>
> почему файл с содержанием
>
> my %hash={'test$test' => 1};
>
> не проходит
>
> perlcritic --single-policy=RequireInterpolation t_crit.pl
> выдавая
>
> String *may* require interpolation at line 1, column 11. See page 51 of PBP. (Severity: 1)
> получается, что такую полиси нужно всегда отключать? зачем она тогда была придумана?
Высосали из.
PerlCritic со списками правил по умолчанию — бесполезен.
И на “page 51 of PBP” ссылаться немного странно, ибо там
Use interpolating string delimiters only for strings that actually
interpolate.
Unexpectedly interpolating a variable in a character string is a
common source of errors in Perl programs. So is unexpected
non-interpolation. Fortunately, Perl provides two distinct types
of strings that make it easy to specify exactly what you want.
If you’re creating a literal character string and you definitely
intend to interpolate one or more variables into it, use a
double-quoted string:
my $spam_name = "$title $first_name $surname";
my $pay_rate = "$minimal for maximal work";
If you’re creating a literal character string and not intending to
interpolate any variables into it, use a single-quoted string:
my $spam_name = 'Dr Lawrence Mwalle';
my $pay_rate = '$minimal for maximal work';
--
lelf
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