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 Post subject: Where are casefoldings for GREEK SIGMA defined?
PostPosted: Wed Dec 25, 2013 9:59 pm 
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Joined: Thu Dec 19, 2013 10:39 pm
Posts: 2
Hello,

I would like to know the document that define following casefoldings.
I found the following note in SpecialCasing.txt(http://www.unicode.org/Public/UNIDATA/SpecialCasing.txt).

# Note: the following cases are not included, since they would case-fold in lowercasing

# 03C3; 03C2; 03A3; 03A3; Final_Sigma; # GREEK SMALL LETTER SIGMA
# 03C2; 03C3; 03A3; 03A3; Not_Final_Sigma; # GREEK SMALL LETTER FINAL SIGMA

But I couldn't find the document that define them, as far as I am concerned.
So if you know any documents that define above casefoldings, please let me know.

Regards,


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 Post subject: Re: Where are casefoldings for GREEK SIGMA defined?
PostPosted: Tue Jan 21, 2014 5:46 am 
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Unicode Guru

Joined: Tue Dec 01, 2009 2:49 pm
Posts: 186
The case mapping for these characters is contained in UnicodeData.txt

03C2;GREEK SMALL LETTER FINAL SIGMA;Ll;0;L;;;;;N;;;03A3;;03A3
03C3;GREEK SMALL LETTER SIGMA;Ll;0;L;;;;;N;;;03A3;;03A3‚Äč


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 Post subject: Re: Where are casefoldings for GREEK SIGMA defined?
PostPosted: Mon Jan 27, 2014 3:22 am 
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Joined: Thu Dec 19, 2013 10:39 pm
Posts: 2
Thank you very much for your reply.

I do understand the definition that you mentioned in your answer.
However, what I would like to know is the definition of context dependent mapping for 03C2 and 03C3 as written in the previous question's note (If there is 03C3 as Final Sigma, it is necessary to map into 03C2 and if there is 03C2 as Not Final Sigma, it will be mapped to ordinary Sigma). Could you please let me know if there is any document that defines this mapping? If yes, may I know the document's name as well?

I apologize for not being clear enough in my previous question.
Please let me know if there is any part of my question that may be unclear.

Regards,

--
Nemo


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