Re: escape character in regex

On Mon, Oct 10, 2022 at 9:50 PM Henrik Park <[email protected]> wrote:
>
> John,
>
> for my this code:
>
> my $delimiter = '$';
> my $str = 'hello$world$buddy';
> my @li = split/$delimiter/,$str;
> print "@li","\n";
>
> How can I make it work correctly?
>
> Thanks
>
> John W. Krahn wrote:
> > "/" is NOT a special charater in a regular expression.  It is just that
> > in Perl the default delimiter for some operators is "/" (i.e. m//, s///,
> > tr///, etc.).
>
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John can probably explain it better than I can. But, I assume it has
to do with the fact that the dollar sign ($) is used as a special
character in Perl to indicate the start of a scalar variable.
Therefore, you need to escape the dollar sign ($) as follows:
      my $delimiter = '\$';
To indicate that you are using the dollar sign ($) as a character.
HTH, Ken