How to filter and delete text from a .m file?

so im creating a script that read another script and filter out and delete variables that I don't want. How should I go about this? I'm assuming using strfind and then strrep?

Scenario: I have a script lets call it A with a bunch of variables and I am working on script B that will read from an excel file and eval those paramteres. I want use script B to edit script A and removed the variables that are repeated from the excel spread sheet.

Answer 1

[Shameer Parmar]

Hi Rodriguez,

To read your A.m file, you can use this..

 Data = textread('A.m', '%s', 'delimiter', '');

All data of file A.m will be stored into variable ' Data'

you can read and edit the data in variable ' Data' line by line as follows:

 for i=1:length(Data)
     lineData = Data{i};
     % add your logic to remove / replace the data
     lineData = strrep(lineData,'ABC','XYZ');  % replace variable 'ABC' with 'XYZ'
     newData{i} = lineData;
 end

then you can write the newData into A.m file as follows:

   fid = fopen('A.m','w');
   for i=1:length(newData)
       fprintf(fid,'%s\n',newData{i});
   end
   fclose(fid);