Unicode alias names and abbreviations
In Unicode, characters can have a unique name. A character can also have one or more alias names. An alias name can be an abbreviation, a C0 or C1 control name, a correction, an alternate name or a figment. An alias too is unique over all names and aliases, and therefore identifying.
Background
The formal, primary Unicode name is unique over all names, only uses certain characters & format, and is guaranteed never to change. The formal name consists of characters A-Z, 0-9, " ", and "-".Next to this name, a character can have one or more formal alias names. Such an alias name also follows the rules of a name: characters used and not used. Alias names are also unique in the full name set. Alias names are formally described in the Unicode Standard. In this sense, an abbreviation is also considered a Unicode name.
Reason to add an alias
There are five possible reasons to assign an alias name to a code point.A character can have multiple aliases: for example has control alias and abbreviation alias.
;1. Abbreviation
;2. Control
;3. Correction
;4. Alternate
;5. Figment