this is a WIP ISO-5426 ucm (Unicode Char Map) for ICU
enc2xs -M ISO5426 iso-5426.ucm
perl Makefile.PL
make
make test
make install
Then
my $expected = "aèà0";
my $got
= Encode::decode 'ISO-5426'
, Encode::encode 'ISO-5426'
, $expected;
or even
open my $datafile,'<:encoding(ISO5426)','datafile.mrc';
I'll release it on CPAN when it will be more tested