Re^2: trouble with @ in a regular expression

Is too (if it can look like an interpolable variable).

>perl -wMstrict -le
"my $str='foo@bar';
 if ($str =~ /@b/){
   print 'No need to escape the @ in a regex';
   }
"
Possible unintended interpolation of @b in string at ...
Global symbol "@b" requires explicit package name at ...
Execution of -e aborted due to compilation errors.
[download]

Comment on Re^2: trouble with @ in a regular expression Download Code

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Re^3: trouble with @ in a regular expression by ww (Archbishop) on Mar 30, 2012 at 12:30 UTC
Good catch! + + Note that it's the invocation of `strict` and warnings (`-w`) that illuminates my error.	[reply] [d/l] [select]
Re^4: trouble with @ in a regular expression by AnomalousMonk (Archbishop) on Mar 30, 2012 at 12:57 UTC
Even with warnings and strictures, Perl is quite happy with an @ if it cannot possibly be a variable. `>perl -wMstrict -le "my $s = 'foo@bar'; print 'No need to escape lone @ in regex' if $s =~ /@ bar/x; " No need to escape lone @ in regex` [download]	[reply] [d/l]