NORMALIZE remove redundant elements of path

normalize(p) remove redundant elements of path p. Does not walk up ".." to be safe. Path need not exist. Does not access physical filesystem.

Contents

Inputs

Outputs

function n = normalize(apath)

parts = split(string(apath), ["/", filesep]);
i0 = 1;
if startsWith(apath, ["/", filesep])
  n = extractBefore(apath, 2);
elseif ispc() && strlength(apath) >= 2 && ~stdlib.strempty(stdlib.root_name(apath))
  n = parts(1);
  i0 = 2;
else
  n = "";
end

for i = i0:length(parts)
  if ~ismember(parts(i), [".", ""])
    if n == ""
      n = parts(i);
    elseif ismember(n, ["/", filesep])
      n = stdlib.append(n, parts(i));
    else
      n = stdlib.append(n, '/', parts(i));
    end
  end
end

if stdlib.strempty(n)
  n = ".";
end

if ischar(apath)
  n = char(n);
end

end

Published with MATLAB® R2025a