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The Unicode Consortium or Unicode Inc. is a not-for-profit organization that coordinates the development of the Unicode standard. Its stated goal is to eventually enable computers to operate in all languages from around the world. The consortium develops and publishes a list of freely-available ...
The original set of CJK unified ideographs used in the Unicode Standard and ISO 10646. In its original form, it included 20,902 characters. Since then, 38 characters have been appended to the URO.
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What everyone thinks of as a character in their script.
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A multibyte encoding for text that represents each Unicode character with 2 or 4 bytes; it is not backward-compatible with ASCII. It is the internal form of Unicode in many programming languages, such as Java, C#, and JavaScript, and in many operating systems. More technically: (1) The UTF-16 encoding form. (2) The UTF-16 encoding scheme. (3) “Transformation format for 16 planes of Group 00,” defined in Annex C of ISO/IEC 10646:2003; technically equivalent to the definitions in the Unicode Standard.
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The Unicode encoding form that assigns each Unicode scalar value in the ranges U+0000..U+D7FF and U+E000..U+FFFF to a single unsigned 16-bit code unit with the same numeric value as the Unicode scalar value, and that assigns each Unicode scalar value in the range U+10000..U+10FFFF to a surrogate pair.
* In UTF-16, the code point sequence <004D, 0430, 4E8C, 10302> is represented as <004D 0430 4E8C D800 DF02>, where <D800 DF02> corresponds to U+10302.
* Because surrogate code points are not Unicode scalar values, isolated UTF-16 code units in the range D800<sub>16</sub>..DFFF<sub>16</sub> are ill-formed.
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The Unicode encoding scheme that serializes a UTF-16 code unit sequence as a byte sequence in either big-endian or little-endian format.
* In the UTF-16 encoding scheme, the UTF-16 code unit sequence <004D 0430 4E8C D800 DF02> is serialized as <FE FF 00 4D 04 30 4E 8C D8 00 DF 02> or <FF FE 4D 00 30 04 8C 4E 00 D8 02 DF> or <00 4D 04 30 4E 8C D8 00 DF 02>.
* In the UTF-16 encoding scheme, an initial byte sequence corresponding to U+FEFF is interpreted as a byte order mark; it is used to distinguish between the two byte orders. An initial byte sequence <FE FF> indicates big-endian order, and an initial byte sequence <FF FE> indicates little-endian order. The BOM is not considered part of the content of the text.
* The UTF-16 encoding scheme may or may not begin with a BOM. However, when there is no BOM, and in the absence of a higher-level protocol, the byte order of the UTF-16 encoding scheme is big-endian.
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The Unicode encoding scheme that serializes a UTF-16 code unit sequence as a byte sequence in little-endian format.
* In UTF-16LE, the UTF-16 code unit sequence <004D 0430 4E8C D800 DF02> is serialized as <4D 00 30 04 8C 4E 00 D8 02 DF>.
* In UTF-16LE, an initial byte sequence <FF FE> is interpreted as U+FEFF zero width no-break space.
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The Unicode encoding form that assigns each Unicode scalar value to a single unsigned 32-bit code unit with the same numeric value as the Unicode scalar value.
* In UTF-32, the code point sequence <004D, 0430, 4E8C, 10302> is represented as <0000004D 00000430 00004E8C 00010302>.
* Because surrogate code points are not included in the set of Unicode scalar values, UTF-32 code units in the range 0000D800<sub>16</sub>..0000DFFF<sub>16</sub> are ill-formed.
* Any UTF-32 code unit greater than 0010FFFF<sub>16</sub> is ill-formed.
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The Unicode encoding scheme that serializes a UTF-32 code unit sequence as a byte sequence in either big-endian or little-endian format.
* In the UTF-32 encoding scheme, the UTF-32 code unit sequence <0000004D 00000430 00004E8C 00010302> is serialized as <00 00 FE FF 00 00 00 4D 00 00 04 30 00 00 4E 8C 00 01 03 02> or <FF FE 00 00 4D 00 00 00 30 04 00 00 8C 4E 00 00 02 03 01 00> or <00 00 00 4D 00 00 04 30 00 00 4E 8C 00 01 03 02>.
* In the UTF-32 encoding scheme, an initial byte sequence corresponding to U+FEFF is interpreted as a byte order mark; it is used to distinguish between the two byte orders. An initial byte sequence <00 00 FE FF> indicates big-endian order, and an initial byte sequence <FF FE 00 00> indicates little-endian order. The BOM is not considered part of the content of the text.
* The UTF-32 encoding scheme may or may not begin with a BOM. However, when there is no BOM, and in the absence of a higher-level protocol, the byte order of the UTF-32 encoding scheme is big-endian.
Industry:Computer; Software
The Unicode encoding scheme that serializes a UTF-32 code unit sequence as a byte sequence in big-endian format.
* In UTF-32BE, the UTF-32 code unit sequence <0000004D 00000430 00004E8C 00010302> is serialized as <00 00 00 4D 00 00 04 30 00 00 4E 8C 00 01 03 02>.
* In UTF-32BE, an initial byte sequence <00 00 FE FF> is interpreted as U+FEFF zero width no-break space.
Industry:Computer; Software
