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The default string primitive in Go, [50] Julia, Rust, Swift (since version 5), [51] and PyPy [52] uses UTF-8 internally in all cases. Python (since version 3.3) uses UTF-8 internally for Python C API extensions [ 53 ] [ 54 ] and sometimes for strings [ 53 ] [ 55 ] and a future version of Python is planned to store strings as UTF-8 by default.
As of ES2015, string methods and regular expression flags have been added to the language that permit handling strings from an encoding-agnostic perspective. UEFI uses UTF-16 to encode strings by default. Swift, Apple's preferred application language, used UTF-16 to store strings until version 5 which switched to UTF-8. [36]
Punched tape with the word "Wikipedia" encoded in ASCII.Presence and absence of a hole represents 1 and 0, respectively; for example, W is encoded as 1010111.. Character encoding is the process of assigning numbers to graphical characters, especially the written characters of human language, allowing them to be stored, transmitted, and transformed using computers. [1]
The decision to use any one encoding may depend on the language used for the documents, or the locale that is the source of the document, or the purpose of the document. Text may be ambiguous as to what encoding it is in, for instance pure ASCII text is valid ASCII or ISO-8859-1 or CP1252 or UTF-8. "Tags" may indicate a document encoding, but ...
The Apple Macintosh computer introduced a character encoding called Mac Roman in 1984. It was meant to be suitable for Western European desktop publishing . It is a superset of ASCII, and has most of the characters that are in ISO-8859-1 and all the extra characters from Windows-1252, but in a totally different arrangement.
Base64 encoding can be helpful when fairly lengthy identifying information is used in an HTTP environment. For example, a database persistence framework for Java objects might use Base64 encoding to encode a relatively large unique id (generally 128-bit UUIDs) into a string for use as an HTTP parameter in HTTP forms or HTTP GET URLs. Also, many ...
The best-known is the string "From " (including trailing space) at the beginning of a line, used to separate mail messages in the mbox file format. By using a binary-to-text encoding on messages that are already plain text, then decoding on the other end, one can make such systems appear to be completely transparent .
[a] The prevalence of string handling using this logic means that, even in the context of UTF-16 systems such as Windows and Java, UTF-16 text files are not commonly used. Rather, older 8-bit encodings such as ASCII or ISO-8859-1 are still used, forgoing Unicode support entirely, or UTF-8 is used for Unicode.