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The US-ASCII character set and other variants of ISO/IEC 646 contains 95 graphic characters. It is comparable with a (Latin script) typewriter and insufficient for a quality typography. But high availability and robustness of ASCII character encoding prompted computer users to invent ASCII substitutes for various glyphs.
Typographical symbols and punctuation marks Symbol Unicode name of the symbol [a] Similar glyphs or concepts See also ́: Acute (accent) Apostrophe, Grave, Circumflex Aldus leaf: Dingbat, Dinkus, Hedera, Index: Fleuron: ≈: Almost equal to: Tilde, Double hyphen: Approximation, Glossary of mathematical symbols, Double tilde & Ampersand: plus sign
ASCII was incorporated into the Unicode (1991) character set as the first 128 symbols, so the 7-bit ASCII characters have the same numeric codes in both sets. This allows UTF-8 to be backward compatible with 7-bit ASCII, as a UTF-8 file containing only ASCII characters is identical to an ASCII file containing the same sequence of characters.
This is an example font containing one glyph, for ASCII capital “A”. This glyph is taken from the GNU Unifont.. STARTFONT 2.1 FONT -gnu-unifont-medium-r-normal--16-160-75-75-c-80-iso10646-1 SIZE 16 75 75 FONTBOUNDINGBOX 16 16 0 -2 STARTPROPERTIES 2 FONT_ASCENT 14 FONT_DESCENT 2 ENDPROPERTIES CHARS 1 STARTCHAR U+0041 ENCODING 65 SWIDTH 500 0 DWIDTH 8 0 BBX 8 16 0 -2 BITMAP 00 00 00 00 18 24 ...
The block contains all the letters and control codes of the ASCII encoding. It ranges from U+0000 to U+007F, contains 128 characters and includes the C0 controls, ASCII punctuation and symbols, ASCII digits, both the uppercase and lowercase of the English alphabet and a control character.
In HTML and XML, a numeric character reference refers to a character by its Universal Character Set/Unicode code point, and uses the format: &#xhhhh;. or &#nnnn; where the x must be lowercase in XML documents, hhhh is the code point in hexadecimal form, and nnnn is the code point in decimal form.
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ASCII art of a fish. ASCII art is a graphic design technique that uses computers for presentation and consists of pictures pieced together from the 95 printable (from a total of 128) characters defined by the ASCII Standard from 1963 and ASCII compliant character sets with proprietary extended characters (beyond the 128 characters of standard 7-bit ASCII).