Re: Re: Adding 2 + 2

[Juerd]

in reply to Re: Adding 2 + 2
in thread Adding 2 + 2

A very creative solution :)
Be sure to check out Roman if you didn't know it already. It can convert roman numbers both ways, and checks if your roman input is valid.

use Roman;
$calc = "II + II";
$calc =~ s/([MDCLXVI]+)/isroman($1) ? arabic($1) : $1/;
print eval $calc;

2;0 juerd@ouranos:~$ perl -e'undef christmas'
Segmentation fault
2;139 juerd@ouranos:~$

[mr_mischief]

Thanks for the review and the suggestion.

I knew Roman was available, but it didn't feel right to use it for this. I felt it was more in the spirit of the thread to go overboard and develop the needed tools specifically for the node. I'm actually a bit surprised it took someone posting a hand-crafted Roman to Arabic numeral conversion before someone gave an example using the module. It was one of the first twists on the problem that popped into my deranged mind.