UTF-16: Perbedaan antara revisi

The first plane (code points U+0000 to U+FFFF) contains the most frequently used characters and is called the [[Basic Multilingual Plane]] or ''BMP''. Both UTF-16 and UCS-2 encode code points in this range as single 16-bit code units that are numerically equal to the corresponding code points. The code points in the BMP are the ''only'' code points that can be represented in UCS-2.

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Code points from the other planes (called Supplementary Planes) are encoded in UTF-16 by pairs of 16-bit code units called a ''surrogate pair'', by the following scheme:

Since the ranges for the lead surrogates, trail surrogates, and valid BMP characters are disjoint, searches are simplified: it is not possible for part of one character to match a different part of another character. It also means that UTF-16 is ''self-synchronizing'': the start of the next character following a given code unit can be found by examining only that one code unit. [[UTF-8]] shares these advantages, but many earlier encoding schemes did not allow unambiguous searching and could only be synchronized by re-parsing from the start of the string.

 

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=== Code points U+D800 to U+DFFF ===

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