EXPANDUSER expands tilde ~ into user home directory

Useful for Matlab functions that can't handle ~

the string $HOME is not handled.

Contents

Inputs
Outputs

Inputs

file: path to expand, if tilde present

Outputs

e: expanded path

function e = expanduser(file)
arguments
  file (1,1) string
end


pat = ['~[/\', filesep, ']+|^~$'];

[i0, i1] = regexp(file, pat, 'once');

if isempty(i0)
  % no leading ~ or it's ~user, which we don't handle
  e = file;
  return
end

home = string(stdlib.homedir());

if i1 - i0 == 0 || strlength(file) == i1
  e = home;
else
  e = strjoin([home, extractAfter(file, i1)], filesep);
end

end