my $delim = '([{<';
my $prefix = qr{[^$delim]*};

As a general practice, I find it's much safer to interpolate strings like  $delim into regexes using  \Q \E metaquote escapes:
    my $delim = '([{<';
    my $prefix = qr{[^\Q$delim\E]*};
Of course, one could metaquote the string variable upon definition:
    my $delim = quotemeta '([{<';
but that might screw up subsequent use of the string; e.g., its use in something like
    my @parts = extract_bracketed($string, $delim, $prefix);
might become problematic.

Give a man a fish:  <%-{-{-{-<

In reply to Re^2: bracket processing by AnomalousMonk
in thread bracket processing by rajaman

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