Roman reviews

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Roman (1.23) ****

This module converts between roman numerals (I, II, III, IV, V) and arabic numerals (1, 2, 3, 4, 5).

I tried and it worked for small numbers and the common cases. Unfortunately it seems to fail for some unusual roman numerals which are in wikipedia:

my $r1910 = 'MDCCCCX';

print arabic ($r1910), "\n";

Also, when it fails, it just gives an "undefined value" - may be it should print an error?

It says that it is restricted to ASCII symbols - that may have been true in 1995 but perhaps this can be updated for 2012?

Also, the namespace as "Roman" and the global exporting of the functions are a bit questionable.

Anyway if, like me, you are too lazy to code this yourself, it works for the common cases. I also think this would make a useful standalone script and would suggest adding a command-line roman/arabic converter using the module.

My simple test script is here: gist.github.com/3281070