gistfile1.m

YAJLParser *parser = [[[YAJLParser alloc] initWithParserOptions:0] autorelease];
parser.delegate = self;

// A chunk of data comes...
YAJLParserStatus status = [parser parse:chunk1];
// 'status' should be YAJLParserStatusInsufficientData, if its not finished
if (parser.parserError) ...;

// Another chunk of data comes...
YAJLParserStatus status = [parser parse:chunk2];
// 'status' should be YAJLParserStatusOK if its finished
if (parser.parserError) ...;