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nicokaiser/r.pl

Created October 24, 2012 14:06
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Conversion from Roman to Arabic numerals
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r.pl
#!/usr/bin/perl
$_=shift@ARGV;s/Mↂ/+9000/g;s/Mↁ/+4000/g;s/CM/+900/g;s/CD/+400/g;s/XC/+90/g;s/XL/+40/g;s/IX/+9/g;s/IV/+4/g;s/ↂ/+10000/g;s/ↁ/+5000/g;s/M/+1000/g;s/D/+500/g;s/C/+100/g;s/L/+50/g;s/X/+10/g;s/V/+5/g;s/I/+1/g;/^[0-9\+]*$/ or die;eval'print 0'.$_;
@nicokaiser
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usage: ./r.pl MCMLXXXI

@nicokaiser
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Even shorter version without error handling and support for 10.000 ("ↂ") and 5.000 ("ↁ"): https://gist.github.com/3946249

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