what kind of parser is NSXMLParser

what kind of parse开发者_如何学JAVAr is NSXMLParser.?

Is it dom parser or sax parser.

how many parsers are there?

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It's a SAX parser. There are a number of DOM XML parsers available for iOS, and the best guide I've seen is How To Chose The Best XML Parser for your iPhone Project

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NSXMLParser is a wrapper around libxml2's SAX functions.