write a function to count the number of semicolons in a github repo by downloading the repo by a url in matlab

main.m
function numSemicolons = countSemicolonsInRepo(repoUrl)
%COUNTSEMICOLONSINREPO Count the number of semicolons in all code files in a GitHub repository.
%   numSemicolons = COUNTSEMICOLONSINREPO(repoUrl) returns the total number of semicolons found 
%   in all code files in the GitHub repository located at repoUrl. The repoUrl should be a string 
%   of the form 'https://github.com/user/repo'.
%
%   Example:
%   numSemicolons = countSemicolonsInRepo('https://github.com/mathworks/matlab_rosbag')
%
%   Author: John Smith (john.smith@gmail.com), 2021

% Download the repository as a zip file
tempDir = tempname();
zipFile = fullfile(tempDir, 'repo.zip');
urlwrite([repoUrl '/archive/refs/heads/main.zip'], zipFile);

% Extract the zip file to a temporary directory
unzip(zipFile, tempDir);

% Find all MATLAB files in the repository
fileList = dir(fullfile(tempDir, '**/*.m'));

% Count the number of semicolons in each file
numSemicolons = 0;
for ii = 1:length(fileList)
    fileName = fullfile(fileList(ii).folder, fileList(ii).name);
    fileContents = fileread(fileName);
    numSemicolons = numSemicolons + count(fileContents, ';');
end

% Clean up
rmdir(tempDir, 's');
end
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