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In SGML, HTML and XML documents, the logical constructs known as character data and attribute values consist of sequences of characters, in which each character can manifest directly (representing itself), or can be represented by a series of characters called a character reference, of which there are two types: a numeric character reference and a character entity reference.
The MediaWiki Sanitizer.php does some cleanup on attributes. A best practice is to use the proper syntax. Discards attributes not on a whitelist for the given element. Turns broken or invalid entities into plaintext. Double-quotes all attribute values. Attributes without values are given the name as value. Double attributes are discarded.
Once installed, the "auto ed" tab should appear on all non-talk pages. Clicking it will run the following fixes: HTML entities like Ö will be replaced with their unicode characters like Ö. Some headline names will be fixed to comply with the manual of style (e.g., "Weblinks" becomes "External links")
Files on page — Gets a list of all the files on a page. Google search — Gets a list of pages from a Google search of the wiki; returns at most 100 results. Enclose phrases in double quotes; separate several terms or phrases with spaces (to get pages that match all search terms) or with OR (to get pages that match at least one term); prepend ...
Incorrect HTML entity escaping may also open up security vulnerabilities for injection attacks such as cross-site scripting. If HTML attributes are left unquoted, certain characters, most importantly whitespace, such as space and tab, must be escaped using entities. Other languages related to HTML have their own methods of escaping characters.
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 ...
This page was last edited on 7 October 2021, at 00:09 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may ...
A. all named entities from the spec are in the table B. no named entity outside of the spec is in the table C. the decimal code points corresponding to the named entities is as per the spec D. the code points are in format "U+HHHH (D)" E. the hexadecimal value of the code points match the decimal value