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Rust, Python: Similar to Base64, but contains only alphanumeric characters. Base64: Arbitrary: 75%: awk Archived 2014-12-29 at the Wayback Machine, C, C (2), Delphi, Go, Python, many others: An early and still-popular encoding, first specified as part of RFC 989 in 1987 Base85: Arbitrary: 80%: C, Python, Python (2) Revised version of Ascii85 ...
Base64 is also widely used for sending e-mail attachments, because SMTP – in its original form – was designed to transport 7-bit ASCII characters only. Encoding an attachment as Base64 before sending, and then decoding when received, assures older SMTP servers will not interfere with the attachment.
These bytes are subtracted from the line's <length character> so that the decoder does not append unwanted characters to the file. uudecoding is reverse of the above, subtract 32 from each character's ASCII code ( modulo 64 to account for the grave accent usage) to get a 6-bit value, concatenate 4 6-bit groups to get 24 bits, then output 3 bytes.
Also, because it encodes five 8-bit bytes (40 bits) to eight 5-bit base32 characters rather than three 8-bit bytes (24 bits) to four 6-bit base64 characters, padding to an 8-character boundary is a greater burden on short messages (which may be a reason to elide padding, which is an option in RFC 4648).
The end of the header section is indicated by an empty field line, resulting in the transmission of two consecutive CR-LF pairs. In the past, long lines could be folded into multiple lines; continuation lines are indicated by the presence of a space (SP) or horizontal tab (HT) as the first character on the next line.
This article includes a list of general references, but it lacks sufficient corresponding inline citations. Please help to improve this article by introducing more precise citations. (July 2019) (Learn how and when to remove this message) This article compares Unicode encodings in two types of environments: 8-bit clean environments, and environments that forbid the use of byte values with the ...
This new version is sports-specific, however, as a partnership between The New York Times and The Athletic. As the NYT site instructs, for Connections Sports Edition, you "group sports terms that ...
In these cases, the header field is actually redundant for the email client to decode the message body, but it may still be useful as an indicator of what type of object is being sent. Values ' quoted-printable ' and ' base64 ' tell the email client that a binary-to-text encoding scheme was used and that appropriate initial decoding is ...