expanduser: ignore inputs like ~abc

Author: scivision

+stdlib/+fileio/expanduser.m

@@ -1,19 +1,19 @@
-function expanded = expanduser(p)
+function e = expanduser(p)
 
 arguments
   p string {mustBeScalarOrEmpty}
 end
 
-expanded = p;
+e = p;
 
-if ~startsWith(expanded, "~")
+if ~all(startsWith(e, "~")) || (all(strlength(e) > 1) && ~all(startsWith(e, "~/")))
   return
 end
 
 home = stdlib.fileio.homedir();
 
 if ~isempty(home)
-  expanded = fullfile(home, extractAfter(expanded, 1));
+  e = fullfile(home, extractAfter(e, 1));
 end
 
 end %function

+stdlib/+fileio/homedir.m

@@ -7,7 +7,7 @@
   return
 end
 
-home = string(java.lang.System.getProperty("user.home"));
+home = stdlib.fileio.posix(java.lang.System.getProperty("user.home"));
 
 h = home;
 

+stdlib/+test/TestFileImpure.m

@@ -9,6 +9,8 @@ function test_expanduser(tc)
 tc.verifyEmpty(expanduser(string.empty))
 tc.verifyEqual(expanduser(""), "")
 
+tc.verifyEqual(expanduser("~abc"), "~abc")
+
 tc.verifyFalse(startsWith(expanduser('~/foo'), "~"))
 
 tc.verifyTrue(endsWith(expanduser('~/foo'), "foo"))