add data source for ex

data/ex.json

@@ -0,0 +1,24 @@
+{
+    "functions": {
+      "shell": [
+        {
+          "code": "ex\n!/bin/sh\n"
+        }
+      ],
+      "file-write": [
+        {
+          "code": "ex [file]\na\nDATA\n.\nw\nq\n"
+        }
+      ],
+      "file-read": [
+        {
+          "code": "ex [file]\n,p\nq\n"
+        }
+      ],
+      "sudo": [
+        {
+          "code": "sudo ex\n!/bin/sh\n"
+        }
+      ]
+    }
+  }