Sorting and combining diacritical marks

[Roozbeh Pournader]

A quick look at ISO 14651 tables
http://www.iso.ch/ittf/ISO14651_2000_TABLE1.htm, yields that there's a
U+0308 (COMBINING DIAERESIS) is in the table. But it is excluded in the
"iso14651_t1" file in glibc. Does it mean that the programmer should
normalize the strings before the sorting, or the umlaut will be ignored?

BTW, what is the source for glibc's "iso14651_t1"?

--roozbeh

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