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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.
Character entity references can also have the format &name; where name is a case-sensitive alphanumeric string. For example, "λ" can also be encoded as λ in an HTML document. The character entity references <, >, " and & are predefined in HTML and SGML, because <, >, " and & are already used to
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 ...
A template to give the <count> substring of characters from the start of the trimmed string Template parameters [Edit template data] Parameter Description Type Status String 1 The string to be trimmed and counted String required Count 2 Gives the <count> substring of characters from the start of the trimmed string Number required See also Bugzilla:22555 (historical; need for correcting padleft ...
Character entities can be included in an HTML document via the use of entity references, which take the form &EntityName;, where EntityName is the name of the entity. For example, —, much like — or —, represents U+2014: the em dash character "—" even if the character encoding used doesn't contain that character. For the ...
These special sequences are character references. Character references that are based on the referenced character's UCS or Unicode code point are called numeric character references. In HTML 4 and in all versions of XHTML and XML, the code point can be expressed either as a decimal (base 10) number or as a hexadecimal (base 16) number. The ...
Formats a Unicode character description inline. Template parameters [Edit template data] This template prefers inline formatting of parameters. Parameter Description Type Status Hex value 1 Hexadecimal unicode codepoint Example 031A String required Character name 2 The canonical name is fetched from Wikidata, there is no longer any need to specify it manually. If supplied, it is ignored ...
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.