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DTD – Validating XML Documents Atul Kahate [email_address]
XML – A Quick Refresher
Exercise ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Exercise ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Exercise ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
XML Naming rules ,[object Object],[object Object],[object Object],[object Object],[object Object]
Exercise ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Some XML Terminology ,[object Object],[object Object],[object Object],[object Object],[object Object]
Terminology Snapshot <?xml version=&quot;1.0&quot;?> <?xml-stylesheet type=&quot;text/xsl&quot; href=&quot;books_list.xsl&quot;?> <BOOKS> <BOOK pubyear=&quot;1929&quot;> <BOOK_TITLE>Look Homeward, Angel</BOOK_TITLE> <AUTHOR>Wolfe, Thomas</AUTHOR> </BOOK> <BOOK pubyear=&quot;1973&quot;> <BOOK_TITLE>Gravity's Rainbow</BOOK_TITLE> <AUTHOR>Pynchon, Thomas</AUTHOR> </BOOK> <BOOK pubyear=&quot;1977&quot;> <BOOK_TITLE>Cards as Weapons</BOOK_TITLE> <AUTHOR>Jay, Ricky</AUTHOR> </BOOK> <BOOK pubyear=&quot;2001&quot;> <BOOK_TITLE>Computer Networks</BOOK_TITLE> <AUTHOR>Tanenbaum, Andrew</AUTHOR> </BOOK> </BOOKS> XML tag Root element Element name Element value End element indicator Start element indicator Attribute name Attribute Value
Document Type Definition (DTD)
Document Type Definition (DTD) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
DTD Example ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Simple XML Example ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
DTD for this XML Example ,[object Object],[object Object]
Elements ,[object Object],[object Object],[object Object],[object Object]
Attributes ,[object Object],[object Object],[object Object],[object Object]
DTD Types
Types of DTD ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
External DTD ,[object Object],[object Object],[object Object],[object Object],[object Object]
Example of External DTD ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Internal DTD ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Which DTD Type to Use? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Standalone XML Documents ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Main Keywords used in DTD ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Declaring Elements in a DTD
Element markup End tag Content Start tag Name At the end of an element, the closing tag </email > In the middle of an element, its content Meeting At the start of an element, the opening tag < email > Description Symbol
Element Markup – Note ,[object Object],[object Object],[object Object]
ELEMENT Declarations in a DTD – 1 ,[object Object],[object Object],[object Object],[object Object],[object Object]
ELEMENT Declarations in a DTD – 2 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
ELEMENT Declarations in a DTD – 3 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
ELEMENT Declarations in a DTD – 4 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
ELEMENT Declarations in a DTD – 5 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
ELEMENT Declarations in a DTD – 6 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Sequence and Choice Lists – Another Example ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
ELEMENT Declarations in a DTD – 7 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
ELEMENT Declarations in a DTD – 8 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
ELEMENT Declarations in a DTD – 9 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Specifying Cardinality ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Examples ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Corresponding XML data ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Exercise ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Exercise Solution: DTD ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Exercises – 1 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Exercises – 2 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Exercises – 3 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Entities
Entities ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Entity Example ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Pre-defined Entities ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Attributes
Usage of Attributes ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Specifying an Attribute Attribute value end ‘ Attribute value start ‘ Value of the attribute Value Start tag close delimiter > Value indicator = Attribute name attribute.name Element name element.name Start tag open delimiter < Description Symbol
Attribute Declarations ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Example Containing Entities and an Attribute ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Declaring Multiple Attributes ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Attribute Defaults ,[object Object],Attribute Default Description #REQUIRED Must appear #IMPLIED Optional #FIXED Optional, but if appears, must have the default value Default value without any keyword Optional, but if appears, can have any value conforming to its data type
Attributes - #REQUIRED ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Attributes - #IMPLIED ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Attributes - #FIXED ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Attributes – Default Values ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Important Attribute Types ,[object Object],[object Object]
CDATA Attribute Type ,[object Object],[object Object],[object Object],[object Object],[object Object]
Enumerated Attribute Type ,[object Object],[object Object],[object Object],[object Object],[object Object]
Exercise ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Solution ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Case Study – Book information ,[object Object],ISBN number ISBN Scale of 1-5 RATING Comments COMMENTS Fiction, Fantasy, Sci-fi, etc CATEGORY Hardback or paperback COVER Publisher of the book PUBLISHER Author of the book AUTHOR Describes a book’s title TITLE Identifies a book record BOOK Description Element
Case Study – Elements ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Case Study – Attributes ,[object Object],[object Object],[object Object]
Case Study – Modified Elements Declaration (Nesting) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Case Study – Let us put it all together ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Thank you! Any Questions?

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2 dtd - validating xml documents

  • 1. DTD – Validating XML Documents Atul Kahate [email_address]
  • 2. XML – A Quick Refresher
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  • 9. Terminology Snapshot <?xml version=&quot;1.0&quot;?> <?xml-stylesheet type=&quot;text/xsl&quot; href=&quot;books_list.xsl&quot;?> <BOOKS> <BOOK pubyear=&quot;1929&quot;> <BOOK_TITLE>Look Homeward, Angel</BOOK_TITLE> <AUTHOR>Wolfe, Thomas</AUTHOR> </BOOK> <BOOK pubyear=&quot;1973&quot;> <BOOK_TITLE>Gravity's Rainbow</BOOK_TITLE> <AUTHOR>Pynchon, Thomas</AUTHOR> </BOOK> <BOOK pubyear=&quot;1977&quot;> <BOOK_TITLE>Cards as Weapons</BOOK_TITLE> <AUTHOR>Jay, Ricky</AUTHOR> </BOOK> <BOOK pubyear=&quot;2001&quot;> <BOOK_TITLE>Computer Networks</BOOK_TITLE> <AUTHOR>Tanenbaum, Andrew</AUTHOR> </BOOK> </BOOKS> XML tag Root element Element name Element value End element indicator Start element indicator Attribute name Attribute Value
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  • 26. Element markup End tag Content Start tag Name At the end of an element, the closing tag </email > In the middle of an element, its content Meeting At the start of an element, the opening tag < email > Description Symbol
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  • 52. Specifying an Attribute Attribute value end ‘ Attribute value start ‘ Value of the attribute Value Start tag close delimiter > Value indicator = Attribute name attribute.name Element name element.name Start tag open delimiter < Description Symbol
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  • 71. Thank you! Any Questions?