Re: A Regular Expression Problem in Perl 5.28

On 3/28/23 17:01, Martin McCormick wrote:
> Uri Guttman <[email protected]> writes:
>> why are you escaping the {}?? those are meta chars that are needed to make
>> that a 5+ range. just delete the backslashes on them and it will work.
> 	First, thank you but read on, please.
> 	I couldn't agree more.  That should do it but when I
> don't escape them, I get:
>
> Nested quantifiers in regex; marked by <-- HERE in m//^\d+{ <-- HERE 3,}// at ./regex line 10.
>
you also quoted the whole regex in '' but included the // which are the 
normal regex delimiters. remove the outer quotes.

and use the qr// form for regexes.

and you don't want the + after the \d as the {5,} is the count. you 
can't have both types of repeat counts.

my $re = qr/^\d{5,}/ ;

that should be all you need.

read perlretut to learn more regex basics. you have escaping and quoting 
mistakes in the original.

uri

-- 
https://uriguttman.blogspot.com/
A Long Strange Trip
A blog about computers, food, my life and silliness.


-- 
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
http://learn.perl.org/