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Although the current version of Python requires an option to open() to read/write UTF-8, [46] plans exist to make UTF-8 I/O the default in Python 3.15. [47] C++23 adopts UTF-8 as the only portable source code file format. [48] Backwards compatibility is a serious impediment to changing code and APIs using UTF-16 to use UTF-8, but this is happening.
The first version of the codepage was used in Microsoft Windows 1.0. It matched the ISO-8859-1 standard (including leaving code points 0xD7 and 0xF7 undefined, as they were not in the standard at that time). The second version of the codepage was introduced in Microsoft Windows 2.0. In this version, code points 0xD7, 0xF7, 0x91, and 0x92 are ...
Current Windows versions and all back to Windows XP and prior Windows NT (3.x, 4.0) are shipped with system libraries that support string encoding of two types: 16-bit "Unicode" (UTF-16 since Windows 2000) and a (sometimes multibyte) encoding called the "code page" (or incorrectly referred to as ANSI code page). 16-bit functions have names suffixed with 'W' (from "wide") such as SetWindowTextW.
A UTF-8 file that contains only ASCII characters is identical to an ASCII file. Legacy programs can generally handle UTF-8 encoded files, even if they contain non-ASCII characters. For instance, the C printf function can print a UTF-8 string because it only looks for the ASCII '%' character to define a formatting string. All other bytes are ...
So newer software systems are starting to use UTF-8. The default string primitive used in newer programing languages, such as Go, [18] Julia, Rust and Swift 5, [19] assume UTF-8 encoding. PyPy also uses UTF-8 for its strings, [20] and Python is looking into storing all strings with UTF-8. [21] Microsoft now recommends the use of UTF-8 for ...
ISO-8859-1 is the IANA preferred name for this standard when supplemented with the C0 and C1 control codes from ISO/IEC 6429. The following other aliases are registered: iso-ir-100, csISOLatin1, latin1, l1, IBM819, Code page 28591 a.k.a. Windows-28591 is used for it in Windows. [7] IBM calls it code page 819 or CP819 (CCSID 819).
In contrast to Windows-1252 and ISO 8859-1, Windows-1251 is not closely related to ISO 8859-5. Unicode (e.g. UTF-8) is preferred to Windows-1251 or other Cyrillic encodings in modern applications, especially on the Internet, making UTF-8 the dominant encoding for web pages.
The ISO/IEC 8859 standard parts only define printable characters, although they explicitly set apart the byte ranges 0x00–1F and 0x7F–9F as "combinations that do not represent graphic characters" (i.e. which are reserved for use as control characters) in accordance with ISO/IEC 4873; they were designed to be used in conjunction with a ...