DTD

To define shortcuts to special characters, the entities are used which can be declared either internal or external. There are three parts of an entity: An ampersand (&) An entity name A semicolon (;) An Internal Entity Declaration: Syntax: Example: DTD Example: XML example: &writer;&copyright; An External Entity Declaration: Syntax: Example: DTD Example: XML example: … Read more

For the attributes and the child elements in XML, there are no rules about when to use which one. Use of Elements vs Attributes: We can store the data either in child elements or in attributes. Example 1: Tom Gates Example 2: male Tom Gates Explanation: In the above examples, gender is an attribute in … Read more

An ATTLIST declaration is used to declare the attributes in a DTD. Declaring Attributes: Syntax: Attribute declaration: Example: DTD: Example: XML: Attribute-type: We can choose any of the below for the attribute-type: Type Uses CDATA To specify that the value is character data. (en1|en2|..) To specify that the value must be one from an enumerated … Read more

An ELEMENT declaration is used to declare the elements in a DTD. Declaring Elements: Syntax: OR Empty Elements: The category keyword EMPTY is used to declare the Empty elements. Syntax: Example: XML example: Elements with Parsed Character Data: To declare the elements with only parsed character data, the #PCDATA is used inside parentheses. Syntax: Example: … Read more

The elements are the main building blocks of both XML and HTML documents. The Building Blocks of XML Documents: The XML documents, when viewed from a DTD point of view, are made up by the below-listed building blocks: Elements Attributes Entities PCDATA CDATA Elements: The main building blocks of both XML and HTML documents are … Read more