$str =~ s/[+-](\d+)(??{".{$1}"})//g;

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(Unfortunately, the straightforward attempt $str =~ s/[+-](\d+).{\1}//g; doesn't work.)

See (??{ code }).

Upd: changed (??{"\\w{$1}"}) to (??{".{$1}"}), just in case you need to remove any character, not just alphanumeric.

In reply to Re: Find Number in String then Ignore Characters proceeding by Eliya
in thread Find Number in String then Ignore Characters proceeding by BenPen95

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