How to control reading text character by character

Hello Everyone. Can please anyone help me about this? I have a text file here that I've already identified which is 'letterabc.txt' and matlab was able to read it and converted it to binary. The said text file has only "ABC" characters inside. What I want to do is to be able to read the characters letter by letter (A->B->C) in a controlled manner. Like its up to the user when will he or she decides to read the next letter(if button is pressed, the user will be able to read the next letter). The characters are already converted to binary (7bits) so I want to be able to read/display (1000001->1000010->1000011) in a controlled manner.

[José-Luis]

Why not use a loop? Either once you have read in the entire file or during import.

[Rochelle Ann Flores]

I want to read the entire file but I need to read it character by character one at a time. I'm new to MATLAB please help me.

[Ganesh Hegade]

You can use input command to control the user request.

[Rochelle Ann Flores]

how can I be able to like "increment" the read function. Like

• int x= 1
• if x = 1
• then read next letters % how can I code this part?
• if x is not 1
• then steady

[Stephen23]

See also the later question:

https://www.mathworks.com/matlabcentral/answers/351271-how-to-read-letter-by-letter-in-matlab-given-the-algorithm

Answer 1

[ES]

fid = fopen('letterabc.txt');

tline = fgetl(fid);
while ischar(tline)
YesOrNo = input('continue Reading [y/n]')
if strcmpi(YesOrNo, 'y')
    disp(tline)
    tline = fgetl(fid);
else
fclose(fid);
return;
end
end

fclose(fid);