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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 character entity references <, >, " and & are predefined in HTML and SGML, because <, >, " and & are already used to delimit markup. This notably did not include XML's ' (') entity prior to HTML5. For a list of all named HTML character entity references along with the versions in which they were introduced, see List of ...
The format is the same as for any entity reference: &name; where name is the case-sensitive name of the entity. The semicolon is required. Because numbers are harder for humans to remember than names, character entity references are most often written by humans, while numeric character references are most often produced by computer programs. [1]
Download as PDF; Printable version; In other projects Appearance. ... Redirect to: List of XML and HTML character entity references; Retrieved from "https: ...
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 ...
Table of Unicode characters from 1 to 65535—shows how the decimal character references look in one's browser; HTML 4.0 Character Entity References—shows how the named and decimal character references look in one's browser; FileFormat.Info—details of many Unicode characters, including the named, decimal and hexadecimal character reference ...
HTML markup consists of several key components, including those called tags (and their attributes), character-based data types, character references and entity references. HTML tags most commonly come in pairs like < h1 > and </ h1 > , although some represent empty elements and so are unpaired, for example < img > .
Although any character can be referenced using a numeric character reference, a character entity reference allows characters to be referenced by name instead of code point. For example, HTML 4 has 252 built-in character entities that do not need to be explicitly declared, while XML has five.