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Unicode Demystified by Richard Gillam

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Flavors of Unicode

Let's take a minute to go back over the character-encoding terms from Chapter 2:

  • An abstract character repertoire is a collection of characters.

  • A coded character set maps the characters in an abstract character repertoire to abstract numeric values or positions in a table. These abstract numeric values are called code points. (For a while, the Unicode 2.0 standard referred to code points as “Unicode scalar values.”)

  • A character encoding form maps code points to series of fixed-length bit patterns known as code units. (For a while, the Unicode 2.0 standard referred to code units as “code points.”)

  • A character encoding scheme, also called a serialization format, maps code units to bytes in a sequential order. (This may involve ...

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