Fallback: As the name is self explanatory to use something as an alternative if the primary thing does not work well. In xslt the fallback tag works as an alternative tag if any given tag does not work or is not supported by xslt processor.  Note: This fallback will always work in not supported tags, so run time exception will not occur. Data.xml 1 2 3 4 5 6 7 8 9 10 11 12 13 14 <?xml version="1.0"?> <?xml-stylesheet type="text/xsl" href="XSL.xsl"?> <records> <record> <name> Adam Barr </name> <address> 222 Cherry </address> <phone> 555-797-2355 </phone> </record> <record> <name> Jeff Adell </name> <address> 730 Elm </address> <phone> 555-797-5555 </phone> </record> </records> XSL.xsl 1 2 3 4 5 6 7 8 9 10 11 12 13 14 1

In XSLT we may need to use same template for different xml data tags, and also there might be a situation where we need to send some special instructions to template tag to act upon give condition or value and produce/process the xml data. Data.xml 1 2 3 4 5 6 7 8 9 10 11 12 13 14 <?xml version='1.0'?> <?xml-stylesheet type="text/xsl" href="XSLT.xsl"?> <lists> <ol> <li> the </li> <li> cat </li> <ol> <li> sat </li> <li> on </li> <li> the </li> </ol> <li> mat </li> </ol> </lists> XSLT.xsl 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 <?xml version='1.0'?> <xsl:stylesheet version= "1.0" xmlns:xsl= "http://www.w3.org/1999/XSL/Transform"

What is XML? Many computer systems contain data in incompatible formats. Exchanging data between incompatible systems (or upgraded systems) is a time-consuming task for web developers. Large amounts of data must be converted, and incompatible data is often lost. XML stores data in plain text format. This provides a software- and hardware-independent way of storing, transporting, and sharing data. XML also makes it easier to expand or upgrade to new operating systems, new applications, or new browsers, without losing data. With XML, data can be available to all kinds of "reading machines" like people, computers, voice machines, news feeds, etc. XML:- 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 <?xml version="1.0" encoding="UTF-8"?> <bookstore> <book category= "cooking" > <title lang= "en" > Every

Modular Programming is good attitude of best programmer. We often need to keep our code in modular approach so that is would be easy to maintain  and update or remove dead code and also it ease the process of bug tracking. XML and XSL  processors provide freedom to import multiple imports to process the same  XML  document. In the following  XML  data we have data from collage where student's and teacher's data is given. But we want to process the same  XML  data with different XSL files. Here in this example we want to show the teacher data in red background color and student data in green background color. Data.xml 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 <?xml version = "1.0"?> <?xml-stylesheet type = "text/xsl" href = "RootXSLT.xsl"?> <data> <DataFor name = "Student" id = "001" > <firstname>

XSLT is used for presenting XML data in well structured way and in eye appealing sense. In XSLT we can define different templates and maintain criteria for XSLT processor to parse the XML data in and apply different template for different XML tags. Lets examine following example XML DATA. 1 2 3 4 5 6 7 8 9 10 <student id= "1" eCode= "e1" > <firstName> Python 1 </firstName> <lastName> Hunert 1 </lastName> <dob> <day> 01 </day> <month> Jan </month> <year> 1991 </year> </dob> <course> Programmer </course> </student> In above XML data we want to present student id with dark background and eCode with red background colors, First Name in blue color, last name in green color and date of birth in different modes, so it will look like this. Source File:- XML_DATA.xml 1 2 3 4 5 6 7 8 9 10