DTD - Entities
Entities are variables used to define shortcuts to standard text
or special characters.
An Internal Entity Declaration
Syntax
| <!ENTITY entity-name "entity-value"> |
Example
DTD Example:
<!ENTITY writer "Donald Duck.">
<!ENTITY copyright "Copyright W3Schools.">
XML example:
<author>&writer;©right;</author> |
Note: An entity has three parts: an ampersand (&), an entity name, and a semicolon (;).
An External Entity Declaration
Syntax
| <!ENTITY entity-name SYSTEM "URI/URL"> |
Example
DTD Example:
<!ENTITY writer SYSTEM "http://www.w3schools.com/entities.dtd">
<!ENTITY copyright SYSTEM "http://www.w3schools.com/entities.dtd">
XML example:
<author>&writer;©right;</author> |
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