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++Fatvamp, cool code! With a long string of empty-block elsifs, you could also write the code using or or ||, like the following. Good work.
my $str = uc shift @_; $str =~ s/XLVIII$/IL/ or $str =~ s/VIII$/IX/ or $str =~ s/III$/IV/ or $str =~ s/DCCCXCIX$/CM/ or $str =~ s/CCCXCIX$/CD/ or $str =~ s/LXXXIX$/XC/ or $str =~ s/XXXIX$/XL/ or $str =~ s/(I{1,2})$/$1I/ or $str =~ s/CDXCIX$/D/ or $str =~ s/CMXCIX$/M/ or $str =~ s/XCIX$/C/ or $str =~ s/I([VXLCDM])$/$1/ or $str =~ s/([VXLCDM])$/$1I/; return $str;

In reply to Re: symbolic increment of roman numerals by thelenm
in thread symbolic increment of roman numerals by PetaMem

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