tasks a-s

Task/Rename-a-file/REALbasic/rename-a-file.realbasic

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+Sub Renamer()
+    Dim f As FolderItem, r As FolderItem
+
+    f = GetFolderItem("input.txt")
+    'Changing a FolderItem's Name attribute renames the file or directory.
+    If f.Exists Then f.Name = "output.txt"
+    'Files and directories are handled almost identically in RB.
+    f = GetFolderItem("docs")
+    If f.Exists Then f.Name = "mydocs"
+
+    'Jump through hoops to find the root directory.
+    r = RootDir(GetFolderItem("."))
+
+    f = r.Child("input.txt")
+    'Renaming in a different directory identical to renaming in current directory.
+    If f.Exists Then f.Name = "output.txt"
+    f = r.Child("docs")
+    If f.Exists Then f.Name = "mydocs"
+End Sub
+
+Function RootDir(what As FolderItem) As FolderItem
+    'RB doesn't have an easy way to find the root of the current drive;
+    'not an issue under *nix but troublesome under Windows.
+    If what.Parent <> Nil Then  'Nil = no parent = root.
+        Return RootDir(what.Parent) 'Recursive.
+    Else
+        Return what
+    End If
+End Function