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Can someone please explain to me what parsing XML means? And what does an XML parser do in general?
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Definition. XML parsing is the process of reading an XML document and providing an interface to the user application for accessing the document. An XML parser is a software apparatus that accomplishes such tasks.
The most common cause is encoding errors. There are several basic approaches to solving this: escaping problematic characters ( < becomes < , & becomes & , etc.), escaping entire blocks of text with CDATA sections, or putting an encoding declaration at the start of the feed.
To parse XML documents, use the XML PARSE statement, specifying the XML document that is to be parsed and the processing procedure for handling XML events that occur during parsing, as shown in the following code fragment.
It means "reading" the XML file/string and getting its content according to the structure, usually to use them in a program.
For example if you have this XML fragment:
<root> <node1>value1</node1> <node2>value2</node2> </root> you may want to use these values in a data structure:
ClassRoot: node1: string node2: string so that, in the end:
Object goofy = ClassRoot.new parse(xml, goofy) puts(goofy) yelds something like:
goofy[node1='value1'; node2='value2'] There are many ways of doing so, like DOM or SAX. You might want to investigate XSLT and xpath as well, according to your needs.
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