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The Unicode names of braille dot patterns are not the same as what many English speakers would use colloquially. In particular, Unicode names use the word dots in the plural even when only one dot is listed: thus Unicode says braille pattern dots-5 when most English-speaking users of braille would simply say "braille dot 5" or just "dot 5".
In contrast, a character entity reference refers to a character by the name of an entity which has the desired character as its replacement text. The entity must either be predefined (built into the markup language) or explicitly declared in a Document Type Definition (DTD). The format is the same as for any entity reference: &name;
Braille was the first writing system with binary encoding. [7] The system as devised by Braille consists of two parts: [10] Character encoding that mapped characters of the French alphabet to tuples of six bits (the dots). The physical representation of those six-bit characters with raised dots in a braille cell.
Braille ASCII (or more formally The North American Braille ASCII Code, also known as SimBraille) is a subset of the ASCII character set which uses 64 of the printable ASCII characters to represent all possible dot combinations in six-dot braille. It was developed around 1969 and, despite originally being known as North American Braille ASCII ...
Another identification is the Unicode character, ⠏, that is U+280F ⠏ BRAILLE PATTERN DOTS-1234 (block: Braille Patterns). The block has a mapping from raised dots to character id in the range U+28xx. Inversely, a cell can be defined by its Unicode character id: U+280F defines cell with raised dots-1234.
The Braille pattern dots-6 ( ⠠) is a 6-dot braille cell with the bottom right dot raised, or an 8-dot braille cell with the lower-middle right dot raised. It is represented by the Unicode code point U+2820, and in Braille ASCII with a comma:, .
The accent mark ⠈ (printed hereinafter with the character @) shows that there is a diacritic on the following letter, as in se@nor señor, fa@cade façade, caf@e café, na@ive naïve, and @angstr@om ångström. In normal braille text, noting the precise diacritic is not important, as it can be easily understood from context, or simply ignored.
The Braille pattern dots-1 ( ⠁) is a 6-dot or 8-dot braille cell with the top left dot raised. It is represented by the Unicode code point U+2801, and in Braille ASCII with "A". Character information