parseREsubheader20.m
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parseREsubheader20.m
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			function renitf_meta = parseREsubheader20( fid, dataLength, headerLength )
			%PARSERESUBHEADER20 Process the Reserved Extensions subheaders in an NITF20 file.
			% RENITF_META = PARSERESUBHEADER20
			% Parse the Reserved Extension Segment Subheader for an NITF 2.0 file.

			% Copyright 2007-2008 The MathWorks, Inc.

			% Essentially we don't know anything about the extension so we just need
			% to pull the header into a struct and read ahead over the data

			% Convert the length from a decimal string to an integer.
			headerLength = sscanf(headerLength', '%d');

			renitf_meta = struct([]);
			fields = {'ReservedDataExtensionHeader', 'ReservedDataExtensionHeader', headerLength};
			renitf_meta = nitfReadMeta(renitf_meta, fields, fid);

			%Move the cursor through the Reserved Extension data
			readforwardbytes = sscanf(dataLength, '%f');
			fread(fid, readforwardbytes, 'uint8=>char');