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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 brackets, respectively. The template cannot output just an ending bracket. You will have to use ] to produce the "]" ending bracket. This template is not necessary in Citation Style 1 templates. You can simply use square brackets, and ...
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.
Use this template to generate a pair of left (open) and right (close) angle brackets (also called chevrons) that will display correctly, even on operating systems and browsers that normally cannot display these characters when they are used in text. The template includes a 'nowrap' instruction, to prevent the brackets from separating from the ...
A link relation is a descriptive attribute attached to a hyperlink in order to define the type of the link, or the relationship between the source and destination resources. The attribute can be used by automated systems, or can be presented to a user in a different way. In HTML these are designated with the rel attribute on link, a, or area ...
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 ...