I don't know if that will address the OP's problems:

$ perl -wE'"6\x{0666}\x{07c6}"=~/\D/ or say "All digits"'
All digits
$ perl -Mutf8 -wE'"6٦۶߆६৬੬૬୬௬౬೬൬෬๖໖༦၆႖៦᠖᥌᧖᪆᪖᭖᮶᱆᱖꘦꣖꤆꧖꧶꩖꯶６𐒦𑁬𑃶𑄼𑇖𑋶𑑖𑓖𑙖𑛆𑜶𑣦𑱖𑵖𖩦𖭖𝟔𝟞𝟨𝟲𝟼𞥖6"=~m/\D/ or say "All digits!"'
All digits!

Enjoy, Have FUN! H.Merijn

In reply to Re^2: unicode string comparison (perl 5.26) by Tux
in thread unicode string comparison (perl 5.26) by md351

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