%----------------------------------------------------------------------
%FileName:?ReadEEG_vhdr.m
%FunctionName:?ReadEEG_vhdr
%Usage:?read?.eeg?and?.vmrk?file?through?reading?.vhdr?file
%Author:?Chen?Qian
%Date:?2018-01-08
%----------------------------------------------------------------------

function?[Mat_rawconfig]?=?ReadEEG_vhdr（?dir_path?）
%ReadEEG_vhdr?Summary?of?this?function?goes?here
%???vhdr?format?eeg?signal?read?--->?eeg?raw?signal?in?Mat_raw?vhdr?info
%???in?config?vmrk?info?in?config.mark
%???Detailed?explanation?goes?here

%?Read?vhdr?file?to?obtain?the?information?of?files
vhdr?=?dir（[dir_path‘*.vhdr‘]）;
vhdr_path?=?[dir_path?vhdr.name];
fp?=?fopen（vhdr_path）;
if?fp?==?-1
	error（‘ERR:ReadEEG_vhdr:FileNotReadable‘‘Couldn‘‘t?read?header?file‘）
end
%?read?the?whole?file?as?one?cell?array
raw={};
while?~feof（fp）
????raw?=?[raw;?{fgetl（fp）}];
end
fclose（fp）;

%?Remove?comments?and?empty?lines
raw（strmatch（‘;‘?raw））?=?[];
raw（cellfun（‘isempty‘?raw）?==?true）?=?[];

n_line?=?length（raw）;
for?i=1:n_line
???if（strfind（raw{i}‘=‘））
???????S?=?regexp（raw（i）‘=‘‘split‘）;
???????switch?（S{1}{1}）
???????????case?‘DataFile‘
???????????????config.eegName?=?S{1}{2};
???????????case?‘MarkerFile‘
???????????????config.markName?=?S{1}{2};
???????????case?‘NumberOfChannels‘
???????????????config.Nchannel?=?str2num（S{1}{2}）;
???????????case?‘DataPoints‘
???????????????config.DataPoints?=?str2num（S{1}{2}）;
???????????case?‘SamplingInterval‘
???????????????config.SamplingInterval?=?str2num（S{1}{2}）;
???????????????config.SampleFrequency?=?1000000/config.SamplingInterval;
???????????case?‘BinaryFormat‘
???????????????config.BinaryFormat?=?S{1}{2};
???????end
???end
end

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