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Nearly all websites now use Unicode, but as of November 2023, an estimated 0.35% of all web pages worldwide – all languages included – are still encoded in Code Page 1251, while less than 0.003% of sites are still encoded in KOI8-R. [7] [8] Though the HTML standard includes the ability to specify the encoding for any given web page in its ...
Web pages authored using HyperText Markup Language may contain multilingual text represented with the Unicode universal character set.Key to the relationship between Unicode and HTML is the relationship between the "document character set", which defines the set of characters that may be present in an HTML document and assigns numbers to them, and the "external character encoding", or "charset ...
For codes from 0 to 127, the original 7-bit ASCII standard set, most of these characters can be used without a character reference. Codes from 160 to 255 can all be created using character entity names. Only a few higher-numbered codes can be created using entity names, but all can be created by decimal number character reference.
After English Wikipedia switched to UTF-8 and interwiki bots started replacing HTML entities in interwikis with literal Unicode text, edits that broke Unicode characters became so common they could no longer be ignored. A workaround was developed to allow the problematic browsers to edit safely provided that MediaWiki knew they have problems.
Converts Unicode character codes, always given in hexadecimal, to their UTF-8 or UTF-16 representation in upper-case hex or decimal. Can also reverse this for UTF-8. The UTF-16 form will accept and pass through unpaired surrogates e.g. {{#invoke:Unicode convert|getUTF8|D835}} → D835.
G. there are no duplicate code points (so that named entities with the same code points are gropued in the same row) H. the descriptions of the named entities consist of the name of the Unicode code points as per the Unicode standard, optionally followed by a wiki reference and/or additional text in parenthesis
As stated in RFC 3492, "Punycode is an instance of a more general algorithm called Bootstring, which allows strings composed from a small set of 'basic' code points to uniquely represent any string of code points drawn from a larger set." Punycode defines parameters for the general Bootstring algorithm to match the characteristics of Unicode text.
A numeric character reference refers to a character by its Universal Character Set/Unicode code point, and a character entity reference refers to a character by a predefined name. A numeric character reference uses the format &#nnnn; or &#xhhhh; where nnnn is the code point in decimal form, and hhhh is the code point in hexadecimal form.