getting a specific paragraph from a .txt file

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This might sound like a stupid question, but is there was way of retrieving a specific paragraph from a .txt file please? I've written the conditions for various experiments in a txt file, so like
and so on. I was wondering if I could say get the user to input the test number (on a gui) and then use a strcat function to merge test and the number and then somehow retrieve the paragraph that corresponds to that number so I can then display it on the gui. Is there a way of doing that please?

Accepted Answer

Walter Roberson
Walter Roberson on 15 Jul 2016
filecontent = fileread('YourFile.txt');
testnum = 2;
par_begin_pos = regexp(filecontent, sprintf('^test%d', testnum), 'lineanchors');
if isempty(par_begin_pos)
fprintf('No paragraph #%d in file', testnum);
par_end_pos = regexp(filecontent, sprintf('^test%d', testnum+1), 'lineanchors');
if isempty(par_end_pos)
par_end_pos = length(filecontent) + 1; %right test was last thing in file
paragraph_content = filecontent(par_begin_pos : par_end_pos - 1);

More Answers (1)

Azzi Abdelmalek
Azzi Abdelmalek on 14 Jul 2016
You can use regexp

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