XML - eXtensible Markup Language
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XML - eXtensible Markup Language Who Am I? Name: Jared Rypka-Hauer Owner: Continuum Media Group, LLC Adobe Community Expert – ColdFusion 9 years ColdFusion Experience
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XML - eXtensible Markup Language. Who Am I? Name: Jared Rypka-Hauer Owner: Continuum Media Group, LLC Adobe Community Expert – ColdFusion 9 years ColdFusion Experience. XML Bootcamp: What and How. What is XML? Why XML? ColdFusion and XML Summary Links. What is XML?. - PowerPoint PPT Presentation
Transcript of XML - eXtensible Markup Language
XML - eXtensible Markup Language
Who Am I?Name: Jared Rypka-HauerOwner: Continuum Media Group, LLC
Adobe Community Expert – ColdFusion9 years ColdFusion Experience
XML Bootcamp: What and How
What is XML? Why XML? ColdFusion and XML Summary Links
What is XML?
eXtensible Markup Language Universally readable by computers and humans
(at least in theory!) Focuses on the rules for describing content No restrictions on content (except...) Basic concepts
Elements Attributes Entities <[!CDATA[...]]> sections
What is XML? (continued)
Basic rules All tags must be closed ...except! Self-closing tags No forbidden characters
● Use “entities” or CDATA● < is <● > is >● & is &● <[!CDATA[or you can use this & it works too!]]>● Other characters are in the references links at the end
Documents must have a root element that wraps everything else in the document
A valid xml document can be as little as: <root><tag1>somecontent</tag1></root>
Example Document
<root><user isadmin=”false” sendemail=”false”>
<firstname>Joe</firstname><lastname>Smith</lastname><email>[email protected]</email><setting name=”sendemail” value=”false” /></user>
</root>
Why XML?
Structured Parsable
Can be converted into objects In the CF world: structures and arrays
Universal Java, CF, .NET, PHP, ActionScript RSS, AJAX, Microsoft Office, SQL Server ANYTHING that has a need for structured data
Simple for Beginnners Extremely flexible and powerful for advanced
users Portable
Why XML? (continued)
Searchable XPath (demo tonight) XQuery (no demo tonight)
● Not supported by CF yet A mix of very familiar concepts
Directories on disk Database tables HTML!! (yeah, I thought that looked familiar!)
Stylable XLT and XSLT
● Perhaps a brief demo tonight Extensions VERY POWERFUL and yet very simple
ColdFusion and XML
Built-in Functions: xmlParse(“xmlString”) xmlSearch(“XPath”,xmlObject) isXml(“xmlString”) isXmlObj(variable)
Elements are Arrays Attributes are Structs Live Demo: code and examples
Links
XML Functions in ColdFusion http://www.techfeed.net/cfQuickDocs/?getDoc=XML
W3Schools http://www.w3schools.com/xml/ Entities: http://w3schools.com/html/html_entities.asp
My Blog http://www.web-relevant.com/blogs/cfobjective/index.cfm?mode=entry&ent
ry=3B6B32E0-BDB9-5320-E255C424B74AC2F8 http://www.web-relevant.com/blogs/cfobjective/index.cfm?mode=entry&ent
ry=4C9A9E20-BDB9-5320-E49EBA5324E02DB3 Tools
http://xmlbuddy.com/ http://www.eclipse.org/webtools/wst/main.html http://www.oxygenxml.com/ (pricey!)
