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HTML and XML provide ways to reference Unicode characters when the characters themselves either cannot or should not be used. A numeric character reference refers to a character by its Universal Character Set/Unicode code point, and a character entity reference refers to a character by a predefined name.
The Adobe Glyph List (AGL) is a mapping of 4,281 glyph names to one or more Unicode characters.Its purpose is to provide an implementation guideline for consumers of fonts (mainly software applications); it lists a variety of standard names that are given to glyphs that correspond to certain Unicode character sequences.
In Unix and Unix-like operating systems, iconv (an abbreviation of internationalization conversion) [2] is a command-line program [3] and a standardized application programming interface (API) [4] used to convert between different character encodings. "It can convert from any of these encodings to any other, through Unicode conversion." [5]
The Universal Coded Character Set (UCS, Unicode) is a standard set of characters defined by the international standard ISO/IEC 10646, Information technology — Universal Coded Character Set (UCS) (plus amendments to that standard), which is the basis of many character encodings, improving as characters from previously unrepresented writing systems are added.
The Unicode Standard, Version 16.0.0 (2024) [84] They supersede the definitions given in the following obsolete works: The Unicode Standard, Version 2.0, Appendix A (1996) ISO/IEC 10646-1:1993 Amendment 2 / Annex R (1996) RFC 2044 (1996) RFC 2279 (1998) The Unicode Standard, Version 3.0, §2.3 (2000) plus Corrigendum #1 : UTF-8 Shortest Form (2000)
A Unicode character is assigned a unique Name (na). [1] The name is composed of uppercase letters A–Z, digits 0–9, hyphen-minus and space.Some sequences are excluded: names beginning with a space or hyphen, names ending with a space or hyphen, repeated spaces or hyphens, and space after hyphen are not allowed.
Unicode input is method to add a specific Unicode character to a computer file; it is a common way to input characters not directly supported by a physical keyboard. Characters can be entered either by selecting them from a display, by typing a certain sequence of keys on a physical keyboard, or by drawing the symbol by hand on touch-sensitive ...
Unicode has a principle to have round-trip compatibility with older standardized legacy encodings, so conversion of documents to Unicode do not lose information; they can be converted back. To achieve this, Unicode compatibility characters have been introduced.