Importing text file and reading certain values with key terms

Hello, I am trying to import this text file into matlab but only reading certain values. Ignoring the uncollided data, I want to be able to retrieve the location of each detector (x,y and z) , (z = 0 for all detectors). Also, I want to be able to retrieve the "total" value which can be found at the end of each collided data. I know this data that is being imported is very hard to convert to the values I need but I would appreciate any help. Thank you in advance.

[Paolo]

Could you show the desired output?

[John Vargas]

Yes, I am sorry, the blocks alternate from collided and uncollided, if you keep scrolling past the 2nd block ( the uncollided one ), the 3rd one should have no label, meaning it is a collided block.

[John Vargas]

if getting the coordinates is too much, just retrieving the "total" values from the collided data is enough to get started. Again, thank you.

[Paolo]

Do you want the coordinates x,y,z in three matrices? Easy for total, maybe not very pretty:

raw = fileread('D1output1.txt');
[~,tok] = regexp(raw,'detector[^\n]*\n\s(?!\buncollided\b)[\s\S]*?total\s+(\d+\.\d+E[-+]\d+)','match','tokens');
data=str2double([tok{:}])

or easier:

raw = fileread('D1output1.txt');
[~,tok] = regexp(raw,'total\s+(\d+\.\d+E[-+]\d+)','match','tokens');
data=str2double([tok{:}]);

as, from looking at the text file, there is no "total" section for uncollided data.

[John Vargas]

Thank you! And yes, 3 matrices would be fine for the coordinates ( Only for the collided data again please.

[Paolo]

The coordinates being for example

x,y,z = 3.97500E+03 3.97500E+03-9.95000E+01

right?

[Paolo]

If that is the case, try:

raw = fileread('D1output1.txt');
[~,tok] = regexp(raw,'x,y,z = (\d+\.\d+E\+\d+) (\d+\.\d+E\+\d+)(-\d+\.\d+E\+\d+)\s*\n\s(?!uncollided)','match','tokens');
data=[tok{:}];
x=str2double(data(1:3:end));
y=str2double(data(2:3:end));
z=str2double(data(3:3:end));

[John Vargas]

Sorry for the late reply, but when I tried running this code, I get the coordinates for each x and y as a matrix of 1x80 but there should be a total of 100 collided points, thus getting a matrix of 1x100. Do you know why this is the case?