RFC 2978:IANA Charset Registration Procedures
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ASCII


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... charsets to be defined in a variety of different ways, from simple single-table mappings such as US-ASCII to complex table switching methods such as those that use ISO ...
... character set" was originally used in MIME to describe such straightforward schemes as US-ASCII and ISO-8859-1 which consist of a small set of characters and a simple one-to-one ...
... character sets are ISO 10646 [ISO-10646], US-ASCII [US-ASCII], and the ISO ...


... 40 characters (including the "cs" prefix) chosen from from the printable subset of US-ASCII. Only one name beginning with "cs" may be assigned to a single charset. If no name of this form is ...
... "A".."Z" ; Case insensitive ASCII Letter ...



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