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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.
A numeric character reference (NCR) is a common markup construct used in SGML and SGML-derived markup languages such as HTML and XML. It consists of a short sequence of characters that, in turn, represents a single character. Since WebSgml, XML and HTML 4, the code points of the Universal Character Set (UCS) of Unicode are used.
For HTML character entities, there are separate definitions that differ only by case (e.g. Ø and ø for an upper-/lowercase letter "O" with a forward slash (Ø and ø). But does the standard allow "free case" where no ambiguity exists?
In contrast, a character entity reference refers to a character by the name of an entity which has the desired character as its replacement text. The entity must either be predefined (built into the markup language) or explicitly declared in a Document Type Definition (DTD). The format is the same as for any entity reference: &name;
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 ...
The functions of escape sequences include: To encode a syntactic entity, such as device commands or special data, which cannot be directly represented by the alphabet. To represent characters, referred to as character quoting , which cannot be typed in the current context, or would have an undesired interpretation.
They're the "key to Ladd's happiness," thanks to their "dark and magical, chewy and dense" texture. Get Ree's Brown Sugar Oatmeal Cookies recipe. C.W. Newell. Sigrid's Carrot Cake.
Unicode input is method to add a specific Unicode character to a computer file; it is a common way to input characters not directly supported by a physical keyboard. Characters can be entered either by selecting them from a display, by typing a certain sequence of keys on a physical keyboard, or by drawing the symbol by hand on touch-sensitive ...