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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.
It was added to Unicode 3.2, but the symbol has been present in works prior to its release. The name is from an abbreviation of its ISO 9573-13 name, "Angle with Down Zig-zag Arrow", [1] also reflected in its Unicode name, "Right Angle with Downwards Zigzag Arrow". Its HTML entity reference, originally defined in ISO 9573-13, is ⍼. [1]
Accessible symbols for tables Unicode symbol Pronounced as HTML entity Template name Template usage * "star" or "asterisk" * {{}}transclusion
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]
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.
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 ...
This page lists codes for keyboard characters, the computer code values for common characters, such as the Unicode or HTML entity codes (see below: Table of HTML values"). There are also key chord combinations, such as keying an en dash ('–') by holding ALT+0150 on the numeric keypad of MS Windows computers. The HTML codes can be used where a ...
Heavy white down-pointing triangle ⛛ U+26DB ⛛ Drive slow (from ARIB STD B24) Left closed entry ⛜ U+26DC ⛜ From ARIB STD B24: Squared saltire ⛝ U+26DD ⛝ Closed entry (from ARIB STD B24) Falling diagonal in white circle in black square ⛞ U+26DE ⛞ Closed to large vehicles (from ARIB STD B24) Black truck ⛟ U+26DF ...