XML Syntax
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Extensible Markup Language (XML) A simple, very flexible text format derived from SGML (ISO 8879).
The XML Document Object Model (DOM) defines a standard set of commands that parsers should expose so you can access HTML and XML document content from your programs. A DOM for XML is an object model that exposes the contents of an XML document. The W3C's Document Object Model (DOM) Level 1 Specification currently defines what a DOM should expose as properties, methods, and events.
Rules:
- In XML, it is illegal to omit the closing tag.
- XML tags are case sensitive.
- Elements must be properly nested.
- One element per page must be the parent of all other elements, the "root" element.
- Some characters have a special meaning in XML.
- An XML element is everything from (including) the element's start tag to (including) the element's end tag.
- An element can contain other elements, simple text or a mixture of both.
- Elements can also have attributes.
- XML Names can contain letters, numbers, and other characters
- XML Names must not start with a number or punctuation character
- XML Names must not start with the letters xml (or XML, or Xml, etc)
- XML Names cannot contain spaces
>=== Sample XML from Sims 2 Storybook Viewer ===
<nowiki><?xml version="1.0" encoding="UTF-8"?></nowiki> <nowiki><StoryCreator></nowiki> <nowiki> <ClientEnvironment></nowiki> <nowiki> <AppVersion>1.0.0.971</AppVersion></nowiki> <nowiki> <LanguageCode>en-us</LanguageCode></nowiki> <nowiki> <LanguageId>1</LanguageId></nowiki> <nowiki> <SKU>14726</SKU></nowiki> <nowiki> <GameVersion>2141707388.153.1</GameVersion></nowiki> <nowiki> </ClientEnvironment></nowiki> <nowiki> <ExchangeMetadata></nowiki> <nowiki> <Album></nowiki> <nowiki> <ID>0x00000001</ID></nowiki> <nowiki> <FamilyName><![CDATA[]]></FamilyName></nowiki> <nowiki> <FamilyId>0</FamilyId></nowiki> <nowiki> <LinkName></LinkName></nowiki> <nowiki> <NeighborhoodName><![CDATA[Pleasantview]]></NeighborhoodName></nowiki> <nowiki> <LotID>0x00000000</LotID></nowiki> <nowiki> <LotName><![CDATA[]]></LotName></nowiki> <nowiki> <Title><![CDATA[]]></Title></nowiki> <nowiki> <Style>Blog</Style></nowiki> <nowiki> <Entry></nowiki> <nowiki> <Title><![CDATA[]]></Title></nowiki> <nowiki> <ThumbnailFilename>thumbnail_6ef1c7e8_af7830ec.jpg</ThumbnailFilename></nowiki> <nowiki> <Snapshot>snapshot_6ef1c7e8_af7830ec.jpg</Snapshot></nowiki> <nowiki> <Text><![CDATA[Little shrimp grows up. Now will he be able to get Daisy Jane to take him seriously?]]></Text></nowiki> <nowiki> <TextResourceId>0x00000001</TextResourceId></nowiki> <nowiki> <TimeStamp>4/25/2005 19:37:34</TimeStamp></nowiki> <nowiki> </Entry></nowiki> <nowiki> <Entry></nowiki> <nowiki> <Title><![CDATA[]]></Title></nowiki> <nowiki> <ThumbnailFilename>thumbnail_af781efb_2f782402.jpg</ThumbnailFilename></nowiki> <nowiki> <Snapshot>snapshot_af781efb_2f782402.jpg</Snapshot></nowiki> <nowiki> <Text><![CDATA[The boys were equally upset about the loss of their father. ]]></Text></nowiki> <nowiki> <TextResourceId>0x00000001</TextResourceId></nowiki> <nowiki> <TimeStamp>4/25/2005 19:37:17</TimeStamp></nowiki> <nowiki> </Entry></nowiki> <nowiki> <KeywordList></nowiki> <nowiki> <Keyword>Sims Life Stories</Keyword></nowiki> <nowiki> </KeywordList></nowiki> <nowiki> <UploadDescription><![CDATA[Pleasantview story Chapter I - not just another boring simtail. Updated Feb 7, 2005.]]></UploadDescription></nowiki> <nowiki> </Album></nowiki> <nowiki> </ExchangeMetadata></nowiki> <nowiki></StoryCreator></nowiki>