how to read data from file into a char array?

Question

Ben Keshet 2020-10-4

0
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https://ww2.mathworks.cn/matlabcentral/answers/604714-how-to-read-data-from-file-into-a-char-array

回答： Star Strider 2020-10-4

Hi,

I have a file from which I want to read certain numeric data. I know the string before the data starts (say "start_string", and after it ends (say "end_string").

I have a code that kind of works, but it thorws an exception (Subscripted assignment dimension mismatch) and it looks bad.. I dont like the ~feof usage twice.

Looking for inputs on making this code better, cleaner and simpler.

Thanks!

This is my code:

i=0; % line index

fid=fopen('file_name')

while ~feof(fid)

line_tmp=fgetl(fid) % read line

if (~isempty(strfind(line_tmp,'start_string')))

while ~feof(fid)

line_copy=fgetl(fid)

if (isempty(strfind(line_tmp,'end_string')))

i=i+1;