$str =~ s/(\d) (\d)/frob($1, $2)/eg

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where you define a sub frob that turns two numbers into a single one, by the rules you've just described.

Perl 6 - second systems done right

In reply to Re: Reading lines going by 2 characters at a time by moritz
in thread Reading lines going by 2 characters at a time by Renyulb28

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