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authorAlan Stern <stern@rowland.harvard.edu>2009-04-30 18:08:18 +0400
committerGreg Kroah-Hartman <gregkh@suse.de>2009-06-16 08:44:43 +0400
commit74675a58507e769beee7d949dbed788af3c4139d (patch)
treed4ae3cc06dbfadecf1eaf6ed0aef249fc87b07e6 /fs/pnode.h
parenta853a3d4eb2edb066248a39f0634f6f5858816a0 (diff)
downloadlinux-74675a58507e769beee7d949dbed788af3c4139d.tar.xz
NLS: update handling of Unicode
This patch (as1239) updates the kernel's treatment of Unicode. The character-set conversion routines are well behind the current state of the Unicode specification: They don't recognize the existence of code points beyond plane 0 or of surrogate pairs in the UTF-16 encoding. The old wchar_t 16-bit type is retained because it's still used in lots of places. This shouldn't cause any new problems; if a conversion now results in an invalid 16-bit code then before it must have yielded an undefined code. Difficult-to-read names like "utf_mbstowcs" are replaced with more transparent names like "utf8s_to_utf16s" and the ordering of the parameters is rationalized (buffer lengths come immediate after the pointers they refer to, and the inputs precede the outputs). Fortunately the low-level conversion routines are used in only a few places; the interfaces to the higher-level uni2char and char2uni methods have been left unchanged. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Acked-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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