bug#13041: 24.2; diacritic-fold-search

[Juri Linkov]

>> Since the existing variable that corresponds to the
>> Unicode file CaseFolding.txt is `case-fold-search',
>> its counterpart variable that corresponds to the Unicode file
>> Decomposition.txt
>
> Where is this file?

There was a reference to
http://www.unicode.org/Public/UNIDATA/extracted/DerivedDecompositionType.txt
from http://www.unicode.org/faq/casemap_charprop.html
but it seems this file is redundant since you can get
the same information from admin/unidata/UnicodeData.txt
using (get-char-code-property ?? 'decomposition)