graff,

Your answer was excellent, and I thank you. It was just what I needed to get me started. I did some reading at the site that JavaFan also recommended and it was good too. I need to absorb more of it, I think, but that will come in time.

I have two questions now, that I have run into a need for, which I do not see addressed anywhere. The first is a very simple question.

1) Is it permissible to comment somehow within the subroutine's character set block? For example: 

sub InThaiVowel {
    return <<'END';
0E30 0E45
0E4D
0E22  #Thai consonant yo-yak can also be a vowel (like 'y' in English)
0E2D  #Thai consonant or-ang can also be a vowel
0E27  #Thai consonant wo-wen is only a vowel following mai han-akat
END
}

[download]

2) Is it possible to define a double-character property? For example, the Thai 'r' becomes a vowel if, and only if, there are two of them together, as in 'rr'. It is then pronounced differently, and is no longer strictly an 'r'. How might I handle this? I suppose this would require some look-ahead assertions...but could these be incorporated into the subroutine in some way?

Thank you so much for your helpfulness!

Blessings,

~Polyglot~

In reply to Re^2: Creating new character classes for foreign languages by Polyglot
in thread Creating new character classes for foreign languages by Polyglot

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