How to find the lines of two words repeated many times in a .txt file

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Abdelhadi To'ma
Abdelhadi To'ma on 23 Oct 2014
Commented: Abdelhadi To'ma on 23 Oct 2014
I'm trying to find a two words (DATA & END ) repeated many times in a .txt file how I can get their positions or in any lines they are exist because I want to bring the numbers which are between these two words
this is a part of the file
-- Coefficient of friction (for calculation of temperature) -- SchmierTyp 0:Oil 1:Grease 2:Dry :TABLE FUNCTION ReibKoef INPUT X SchmierTyp TREAT
DATA
1 2 3
0,01 0,02 0,03
END
-- Coefficient of friction (for calculation of temperature) -- SchmierTyp 0:Oil 1:Grease 2:Dry :TABLE FUNCTION ReibKoef INPUT X SchmierTyp TREAT
DATA
1 2 3
0,01 0,02 0,03
END
and I'm trying to do this by typing
haystack = fopen('h1.dat','r');
needle = 'DATA';
line = 0;
found = false;
while ~feof(haystack)
tline = fgetl(haystack);
line = line + 1;
if ischar(tline) && ~isempty(strfind(tline, needle))
found = true;
break;
end
end
if ~found
line = NaN;
end
Thanks in advance
  2 Comments
Guillaume
Guillaume on 23 Oct 2014
At first glance, your code looks correct. It will find the first line that contains 'DATA'. So what exactly is the problem you are having?
Abdelhadi To'ma
Abdelhadi To'ma on 23 Oct 2014
I want to find all the lines that have DATA and END to be able to extract the numbers between the DATA and the END lines

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Accepted Answer

Michael Haderlein
Michael Haderlein on 23 Oct 2014
You just have to extend your if-structure:
if ischar(tline)
if found
if strcmpi(tline,'END')
found=false;
else
mydata(end+1,:)=str2num(tline);
end
else
if strcmpi(tline,needle)
found=true;
end
end
end
I cannot test this code right now, but it should at least serve well as starting point. Of course, you have to initialize mydata at the beginning (mydata=[];).
  1 Comment
Abdelhadi To'ma
Abdelhadi To'ma on 23 Oct 2014
thanks a lot for your help but I think that I have found a good way for doing it
fid = fopen('h1.dat', 'rt');
s = textscan(fid, '%s', 'delimiter', '\n');
idx1 = find(strcmp(s{1}, 'DATA'), :, 'first');
idxx1 = find(strcmp(s{1}, 'END'), :, 'first');
buffer = s{1}(idx1(1,1)+1:idxx1(1,1)-1);
dataTxt = sprintf('%s\n',buffer{:});
data = textscan(dataTxt,'%f %f %f');
d=cell2mat(data);
fclose(fid);

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