Vim(function):E128: Function name must start with a capital or "s:": g:test() Vim(function):E128: Function name must start with a capital or "s:": test2() "# Vim(function):E128: Function name must start with a capital or "s:": b:test() called Foo(1) called Foo(2) called Foo(3) s:Testje exists: 0 func s:Testje exists: 1 Bar exists: 1 func Bar exists: 1 Vim(call):E116: Invalid arguments for function append