Fix #88

src/dfmt.d

@@ -341,9 +341,13 @@ private:
             case tok!"in":
             case tok!"is":
                 writeToken();
-                if (!currentIs(tok!"("))
+                if (!currentIs(tok!"(") && !currentIs(tok!"{"))
                     write(" ");
                 break;
+            case tok!"case":
+                writeToken();
+                write(" ");
+                break;
             default:
                 if (index + 1 < tokens.length)
                 {

tests/issue0088.d

@@ -0,0 +1,9 @@
+unittest
+{
+	switch (x)
+	{
+	case+1:
+	case-1:
+	case(1):
+	}
+}

tests/issue0088.d.ref

@@ -0,0 +1,9 @@
+unittest
+{
+    switch (x)
+    {
+    case +1:
+    case -1:
+    case (1):
+    }
+}