ISO/IEC 10646:2012 Withdrawn
Information technology -- Universal Coded Character Set (UCS)
- specifies the architecture of ISO/IEC 10646.
- defines terms used in ISO/IEC 10646.
- describes the general structure of the UCS codespace.
- specifies the Basic Multilingual Plane (BMP) of the UCS.
- specifies supplementary planes of the UCS: the Supplementary Multilingual Plane (SMP), the Supplementary Ideographic Plane (SIP), the Tertiary Ideographic Plane (TIP), and the Supplementary Special-purpose Plane (SSP).
- defines a set of graphic characters used in scripts and the written form of languages on a world-wide scale.
- specifies the names for the graphic characters and format characters of the BMP, SMP, SIP, SSP and their coded representations within the UCS codespace. (Note: TIP is currently empty).
- specifies the coded representations for control characters and private use characters.
- specifies three encoding forms of the UCS: UTF-8, UTF-16, and UTF-32.
- specifies seven encoding schemes of the UCS: UTF-8, UTF-16, UTF-16BE, UTF-16LE, UTF-32, UTF-32BE, and UTF-32LE.
- specifies the management of future additions to this coded character set.
The charts of the ideographic characters are now in multi-column format.
The UCS is an encoding system different from that specified in ISO/IEC 2022. The method to designate UCS from ISO/IEC 2022 is specified in 12.2.
A graphic character will be assigned only one code point in the standard, located either in the BMP or in one of the supplementary planes.
By defining a consistent way of encoding multilingual text, ISO/IEC 10646:2012 enables the exchange of data internationally. The information technology industry gains data stability, greater global interoperability and data interchange. ISO/IEC 10646 has been widely adopted on the World Wide Web and implemented in modern operating systems and computer languages.
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