ISO/IEC
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... implementers. Up to the present time, changes in Unicode and
amendments and additions to ISO/IEC 10646 have tracked each other, so
that the character repertoires and code point assignments have
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... committed to maintain this very useful synchronism.
ISO/IEC 10646 and Unicode define several encoding forms of their
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... number of octets, and the value of each, depend on the integer value
assigned to the character in ISO/IEC 10646 (the character number,
a.k.a. code position, code point or Unicode ...
... UCS characters are designated by the U+HHHH notation, where HHHH is a
string of from 4 to 6 hexadecimal digits representing the character
number in ISO/IEC 10646.
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... Unicode Standard [UNICODE]. Descriptions and
formulae can also be found in Annex D of ISO/IEC 10646-1 [ISO.10646]
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ISO/IEC 10646 is updated from time to time by publication of
amendments and additional parts; similarly, new versions of the
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... In general, the changes amount to adding new characters, which does
not pose particular problems with old data. In 1996, Amendment 5 to
the 1993 edition of ISO/IEC 10646 and Unicode 2.0 moved and expanded
the Korean Hangul block, thereby making any previous data containing
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... UTF-8". This string labels media types containing text
consisting of characters from the repertoire of ISO/IEC 10646
including all amendments at least up to amendment 5 of the 1993
edition (Korean block), encoded to a sequence of octets using the
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... UTF-8" does not contain a version
identification, referring generically to ISO/IEC 10646. This is
intentional, the rationale being as follows:
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... which may well not contain any new characters.
Now the "Korean mess" (ISO/IEC 10646 amendment 5) is an incompatible
change, in principle contradicting the appropriateness of a version
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... Hangul characters encoded according to Unicode 1.1 (or equivalently
ISO/IEC 10646 before amendment 5), and there is arguably no such data
to worry about, this being the very reason the incompatible change
was deemed acceptable.
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... and provided no incompatible change actually occurs. Should
incompatible changes occur in a later version of ISO/IEC 10646, the
MIME charset ...
... security issue occurs when encoding to UTF-8: the ISO/IEC
10646 description of UTF-8 allows encoding ...
... Unicode the source of the normative definition of UTF-8,
keeping ISO/IEC 10646 as the reference for characters.
o Straightened out terminology. UTF-8 ...
... International Organization for Standardization, "Information Technology - Universal Multiple-octet coded Character Set (UCS)", ISO/IEC Standard 10646, comprised of ISO/IEC 10646-1:2000, "Information technology -- Universal Multiple-Octet Coded Character Set (UCS ...
... Universal Multiple-octet coded Character Set (UCS)", ISO/IEC Standard 10646, comprised of ISO/IEC 10646-1:2000, "Information technology -- Universal Multiple-Octet Coded Character Set (UCS) -- Part 1: Architecture ...
... Universal Multiple-Octet Coded Character Set (UCS) -- Part 1: Architecture and Basic Multilingual Plane", ISO/IEC 10646-2:2001, "Information technology -- Universal Multiple-Octet Coded Character Set (UCS) -- Part 2: Supplementary Planes" and ISO/IEC ...
... ISO/IEC 10646-2:2001, "Information technology -- Universal Multiple-Octet Coded Character Set (UCS) -- Part 2: Supplementary Planes" and ISO/IEC 10646- 1:2000/Amd 1:2002, "Mathematical symbols and other characters". ...