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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.
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.
This template is a simple wrapper around the [[ and ]] HTML entities that produce starting and ending double brackets, respectively. Limitations The template cannot output just the starting double bracket or just the ending double bracket.
An entity resolver may use either identifier for locating the referenced external entity. No internal subset has been indicated in this example or the next ones. The root element is declared to be html and, therefore, it is the first tag to be opened after the end of the doctype declaration in this example and the next ones, too. The HTML tag ...
The {} template uses HTML, and will size-match a serif font, and will also prevent line-wrap. All templates are sensitive to the = sign, so remember to replace = with {} in template input, or start the input with 1=. Use wiki markup '' and ''' inside the {} template, as well as other HTML entities.
This template inserts a square opening bracket [. Setting parameter 1 to 2 can be used to make it a double: {{Square bracket open|2}} → [[. Can be used to create a wikilink within a template, when using brackets directly might cause wrong parsing (since it can be read as an opening for a link).
HTML documents imply a structure of nested HTML elements. These are indicated in the document by HTML tags, enclosed in angle brackets thus: < p >. [73] [better source needed] In the simple, general case, the extent of an element is indicated by a pair of tags: a "start tag" < p > and "end tag" </ p >. The text content of the element, if any ...
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 ...