RFC 2068:Hypertext Transfer Protocol -- HTTP/1.1
RFC-Ref

US-ASCII


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... The following rules are used throughout this specification to describe basic parsing constructs. The US-ASCII coded character set is defined by ANSI ...
... OCTET = <any 8-bit sequence of data> CHAR = <any US-ASCII character (octets 0 - 127)> UPALPHA = <any US-ASCII uppercase letter "A".."Z"> ...
... CHAR = <any US-ASCII character (octets 0 - 127)> UPALPHA = <any US-ASCII uppercase letter "A".."Z"> LOALPHA = <any US-ASCII lowercase letter "a".."z"> ...
... UPALPHA = <any US-ASCII uppercase letter "A".."Z"> LOALPHA = <any US-ASCII lowercase letter "a".."z"> ALPHA = UPALPHA | LOALPHA ...
... ALPHA = UPALPHA | LOALPHA DIGIT = <any US-ASCII digit "0".."9"> CTL = <any US-ASCII control character ...
... DIGIT = <any US-ASCII digit "0".."9"> CTL = <any US-ASCII control character (octets 0 - 31) and DEL (127)> ...
... (octets 0 - 31) and DEL (127)> CR = <US-ASCII CR, carriage return (13)> LF ...
... CR, carriage return (13)> LF = <US-ASCII LF, linefeed (10)> SP ...
... LF, linefeed (10)> SP = <US-ASCII SP, space (32)> HT = <US-ASCII ...
... US-ASCII SP, space (32)> HT = <US-ASCII HT, horizontal-tab (9)> <"> = <US-ASCII double-quote mark (34)> ...
... HT = <US-ASCII HT, horizontal-tab (9)> <"> = <US-ASCII double-quote mark (34)> HTTP/1.1 ...


... US-ASCII. Coded Character Set - 7-Bit American Standard Code for Information Interchange. Standard ANSI ...


... entity-body should be labeled as the lowest common denominator of the character codes used within that body, with the exception that no label is preferred over the labels US-ASCII or ISO-8859-1. ...



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