filesystem_type: return char

Author: scivision

+stdlib/+dotnet/filesystem_type.m

@@ -3,10 +3,10 @@
 function t = filesystem_type(p)
 
 if stdlib.exists(p)
-  t = string(System.IO.DriveInfo(stdlib.absolute(p)).DriveFormat);
+  t = char(System.IO.DriveInfo(stdlib.absolute(p)).DriveFormat);
   % https://learn.microsoft.com/en-us/dotnet/api/system.io.driveinfo.driveformat
 else
-  t = string.empty;
+  t = '';
 end
 
 end

+stdlib/+java/filesystem_type.m

@@ -1,9 +1,9 @@
 function t = filesystem_type(p)
 
 if stdlib.exists(p)
-  t = string(javaMethod("getFileStore", "java.nio.file.Files", javaPathObject(p)).type);
+  t = char(javaMethod("getFileStore", "java.nio.file.Files", javaPathObject(p)).type);
 else
-  t = string.empty;
+  t = '';
 end
 
 end

+stdlib/+python/filesystem_type.m

@@ -1,7 +1,6 @@
 function t = filesystem_type(p)
 
-
-t = string.empty;
+t = '';
 
 if ~stdlib.exists(p)
   return
@@ -12,8 +11,8 @@
 try
   for part = py.psutil.disk_partitions(p)
     prt = part{1};
-    if startsWith(pr, string(prt.mountpoint))
-      t = string(prt.fstype);
+    if startsWith(pr, char(prt.mountpoint))
+      t = char(prt.fstype);
       return
     end
   end

+stdlib/+sys/filesystem_type.m

@@ -1,6 +1,6 @@
 function t = filesystem_type(p)
 
-t = string.empty;
+t = '';
 
 if ~stdlib.exists(p), return, end
 
@@ -15,7 +15,7 @@
 
 [s, t] = system(cmd);
 if s == 0
-  t = string(strip(t));
+  t = strip(t);
 end
 
 end

test/TestDisk.m

@@ -100,7 +100,7 @@ function test_filesystem_type(tc, Ps, all_fun)
   tc.verifyEqual(e.identifier, 'stdlib:hbackend:NameError', e.message)
   return
 end
-tc.verifyClass(t, 'string')
+tc.verifyClass(t, 'char')
 
 if stdlib.exists(Ps)
   tc.assumeFalse(isempty(t) && tc.CI, "Some CI block viewing their filesystem type")