write in a txt file

i have to write parameters into a .txt file where there are already some written lines (a sort of template) like this

from:

Dictionary kinetics

{

@Kinetics

@Thermodynamics

@Output

}

to:

Dictionary kinetics

{

@Kinetics Cartel1;

@Thermodynamics Cartel2;

@Output Cartel3;

}

the number of whitespaces in beetween isnt a problem, I can' t find a way to do it

Answer 1

[Image Analyst]

Try this

% Open the file for reading in text mode.
fileID = fopen(fullFileName, 'rt');
% Open the file for reading in text mode.
outputFileID = fopen(outputFullFileName, 'wt');
% Read the first line of the file.
textLine = fgetl(fileID);
lineCounter = 1;
while ischar(textLine)
    % Print out what line we're operating on.
    fprintf('%s\n', textLine);
    if contains(textLine, 'Kinetics')
        textLineOut = sprintf('%s %f', textLine, Cartel(1))
    elseif contains(textLine, 'Thermodynamics')
        textLineOut = sprintf('%s %f', textLine, Cartel(2))
    elseif contains(textLine, 'Output')
        textLineOut = sprintf('%s %f', textLine, Cartel(3))
    end
    % Output line of text to output file
    fprintf(outputFileID, '%s\n', textLineOut);
    
    % Read the next line.
    textLine = fgetl(fileID);
    lineCounter = lineCounter + 1;
end
% All done reading all lines, so close the files.
fclose(fileID);
fclose(outputFileID);

Untested, so adapt as needed.

[Andrea Somma]

I think that you missed to write the line as it was if those keywords were missing, anywas I made it work adding a "else" at at the bottom; thank you really helpful

[Andrea Somma]

% Open the file for reading in text mode.
fileID = fopen('./complete_model_test/input.dic', 'rt');
% Open the file for reading in text mode.
outputFileID = fopen('./complete_model_test/test1.dic', 'wt');
% Read the first line of the file.
textLine = fgetl(fileID);
lineCounter = 1;

while ischar(textLine)
    % Print out what line we're operating on.
    fprintf('%s\n', textLine);
    if contains(textLine, 'Kinetics')
        textLineOut = sprintf('%s %f', textLine, 'Cartel1');
    elseif contains(textLine, 'Thermodynamics')
        textLineOut = sprintf('%s %f', textLine, 'Cartel2');
    elseif contains(textLine, 'Output')
        textLineOut = sprintf('%s %f', textLine, 'Cartel3');
    else
        textLineOut = sprintf('%s %f', textLine);
    end
    % Output line of text to output file
    fprintf(outputFileID, '%s\n', textLineOut);
    
    % Read the next line.
    textLine = fgetl(fileID);
    lineCounter = lineCounter + 1;
end
% All done reading all lines, so close the files.
fclose(fileID);
fclose(outputFileID);

this is the output; I dont know why it adds 67.000

Dictionary kinetics

{

@Kinetics 67.000000artel1

@Thermodynamics 67.000000artel2

@Output 67.000000artel3

}

[Walter Roberson]

textLineOut = sprintf('%s %f', textLine);

You are only passing one input to a format that expects two.

textLineOut = sprintf('%s %f', textLine, 'Cartel3');

You are using %f to display the character vector 'Cartel3'. The first character of that is 'C' which happens to be encoded as the integer 67

[Andrea Somma]

yes I noticed; I found out that removing %f it works fine, thank you!

[Image Analyst]

If the "Cartel" are not numbers in an array, you can do this:

if contains(textLine, 'Kinetics')
    textLineOut = sprintf('%s Cartel1', textLine)
elseif contains(textLine, 'Thermodynamics')
    textLineOut = sprintf('%s Cartel2', textLine)
elseif contains(textLine, 'Output')
    textLineOut = sprintf('%s Cartel3', textLine)
end

[Andrea Somma]

Thank you!😉