you might be interested in the new /r flag to avoid adding $_ explicitly at the end of map.

my $fen= join '/', map { s/( +)/length $1/ger } $input =~ /.{8}/g;

Cheers Rolf

PS: Je suis Charlie!

In reply to Re^5: How can I replace space sequences in a string with the number of spaces in each sequence? by LanX
in thread How can I replace space sequences in a string with the number of spaces in each sequence? by tkguifan

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