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The Parser

An XML  parser  is a processor that reads an XML document and determines the structure and properties of the data. If the parser goes beyond the XML rules for well-formdness and validates the document against an XML DTD, the parser is said to be a "validating" parser. A generalized XML parser reads XML files and generates a hierarchically structured tree, then hands off data to viewers and other applications for processing. A validating XML parser also checks the XML syntax and reports errors. 

Now you have the possibility to check whether a document is well formed and valid. Once you are finished with this tutorial you may make your own XML documents, with or without a DTD to see whether it is well formed or valid. Just enter your source code and press Parse! You can see the section below only with MS Internet Explorer 5.


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