First, I know nothing about roman or the intricacies of the language so sorry if I totally miss what you are tying to do. From what it seems you want to do, this will work: 
$chars = 'dny|kh|rj|ee|\w';

$foo = 'khatos';
push(@a, $1) while ($foo=~/($chars)/g);
print join(' ', @a), "\n";

$foo = 'mukharjee';
push(@b, $1) while ($foo=~/($chars)/g);
print join(' ', @b) , "\n";

[download]
Results:
kh a t o s
m u kh a rj ee

There may be a more elegant way though. The groupings in $chars is all the character combinations that should be considered a single term. $chars will obviously have to be expanded to include all the possible groups for the language, just keep the 3 character groups in the front then the 2 character groups.

In reply to Re: Regexp and transliteration between languages by perlmonkey
in thread Regexp and transliteration between languages by killedar

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